[000/141] 3.6.11.6-stable review

[000/141] 3.6.11.6-stable review

[Steven Rostedt]

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This is the start of the stable review cycle for 3.6.11.6 release.
There are 141 patches in this series, which will be posted as responses
to this one. If anyone has any issues with these being applied, please
let me know.

Responses should be made by Sat Jul 6 14:37:54.
Anything received after that time might be too late.

Adis Hamzić (1):
      radeon: Fix system hang issue when using KMS with older cards
         [e49f3959a96dc279860af7e86e6dbcfda50580a5]

Alan Stern (2):
      USB: UHCI: fix for suspend of virtual HP controller
         [997ff893603c6455da4c5e26ba1d0f81adfecdfc]
      USB: xHCI: override bogus bulk wMaxPacketSize values
         [e4f47e3675e6f1f40906b785b934ce963e9f2eb3]

Alex Deucher (3):
      drm/radeon: don't allow audio on DCE6
         [1cbcca302a318499f20a512847c5d6a510c08c35]
      drm/radeon: fix card_posted check for newer asics
         [09fb8bd1a63b0f9f15e655c4fe8d047e5d2bf67a]
      drm/radeon: fix typo in cu_per_sh on verde
         [468ef1a58c9268ac9709350bf95eaf1c22a69f29]

Alex Hung (1):
      ACPI / video: ignore BIOS initial backlight value for HP m4
         [fedbe9bc6fd3e14b1ffbb3dac407777ac4a3650c]

Alex Lyakas (1):
      md/raid1: consider WRITE as successful only if at least one non-Faulty and non-rebuilding drive completed it.
         [3056e3aec8d8ba61a0710fb78b2d562600aa2ea7]

Alexandre Bounine (1):
      rapidio/tsi721: fix bug in MSI interrupt handling
         [1ccc819da6fda9bee10ab8b72e9adbb5ad3e4959]

Aneesh Kumar K.V (1):
      mm/THP: use pmd_populate() to update the pmd with pgtable_t pointer
         [7c3425123ddfdc5f48e7913ff59d908789712b18]

Arnd Bergmann (2):
      ARM: 7743/1: compressed/head.S: work around new binutils warning
         [da94a829305f1c217cfdf6771cb1faca0917e3b9]
      ARM: 7742/1: topology: export cpu_topology
         [92bdd3f5eba299b33c2f4407977d6fa2e2a6a0da]

Ash Willis (1):
      ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6
         [780a6ec640a3fed671fc2c40e4dd30c03eca3ac3]

Bastian Triller (1):
      ACPI / video: Add "Asus UL30A" to ACPI video detect blacklist
         [c8f6d8351ba8c89d5cd4c562552ec7ec29274e31]

Ben Hutchings (2):
      perf: net_dropmonitor: Fix symbol-relative addresses
         [5a1e99dd2028e00998d42029be86835d8ef4a46e]
      perf: net_dropmonitor: Fix trace parameter order
         [140c3c6a2bcd2c31e2f7f5a8d59689724776c8e5]

Ben Mesman (1):
      drm/i915: no lvds quirk for hp t5740
         [45a211d75137b1ac869a8a758a6667f15827a115]

Benjamin Herrenschmidt (1):
      powerpc: Fix missing/delayed calls to irq_work
         [230b3034793247f61e6a0b08c44cf415f6d92981]

Bjørn Mork (1):
      USB: option: blacklist network interface on Huawei E1820
         [b8a24e6281d37243c06b9497dcbfaa98c1e2ad35]

Brian Behlendorf (1):
      drivers/block/brd.c: fix brd_lookup_page() race
         [dfd20b2b174d3a9b258ea3b7a35ead33576587b1]

Brian King (2):
      powerpc/pseries: Force 32 bit MSIs for devices that require it
         [e61133dda480062d221f09e4fc18f66763f8ecd0]
      powerpc: Set default VGA device
         [c2e1d84523ad2a19e5be08c1f01999cc9e82652e]

Chew, Chiau Ee (1):
      ata_piix: add PCI IDs for Intel BayTail
         [fca8c90d519dedd4f4b19901d005c243f7f0bf2e]

Christian Gmeiner (1):
      drivers/leds/leds-ot200.c: fix error caused by shifted mask
         [4b949b8af12e24b8a48fa5bb775a13b558d9f4da]

Christopher Harvey (1):
      drm/mgag200: Add missing write to index before accessing data register
         [91f8f105f2b82b4a38dee2d74760bc39d40ec42c]

Clemens Ladisch (1):
      ALSA: usb-audio: fix Roland/Cakewalk UM-3G support
         [a0c6d309c6df14655f9962f666d1da96318b0b7c]

Cliff Wickman (1):
      mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas
         [a9ff785e4437c83d2179161e012f5bdfbd6381f0]

Dan Carpenter (1):
      USB: cxacru: potential underflow in cxacru_cm_get_array()
         [2a0ebf80aa95cc758d4725f74a7016e992606a39]

Dan Williams (1):
      USB: option: add device IDs for Dell 5804 (Novatel E371) WWAN card
         [49c6e370dd6400b84897c4100095089b5c13a061]

Daniel Vetter (1):
      drm/i915: prefer VBT modes for SVDO-LVDS over EDID
         [c3456fb3e4712d0448592af3c5d644c9472cd3c1]

Dave Chinner (1):
      xfs: kill suid/sgid through the truncate path.
         [2962f5a5dcc56f69cbf62121a7be67cc15d6940b]

Dave Kleikamp (1):
      jfs: fix a couple races
         [73aaa22d5ffb2630456bac2f9a4ed9b81d0d7271]

Egbert Eich (1):
      drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.
         [53d3b4d7778daf15900867336c85d3f8dd70600c]

Emmanuel Grumbach (1):
      iwlwifi: dvm: fix zero LQ CMD sending avoidance
         [a87783699b23395c46bbeeb5d28f6db24897bf26]

Felix Fietkau (1):
      Revert "ath9k_hw: Update rx gain initval to improve rx sensitivity"
         [96005931785238e1a24febf65ffb5016273e8225]

Finn Thain (1):
      m68k/mac: Fix unexpected interrupt with CONFIG_EARLY_PRINTK
         [df66834a43c461de2565c45d815288ba1c0def37]

Gabor Juhos (1):
      ath9k: use correct OTP register offsets for AR9550
         [add295a4afbdf5852d004c754c552d692b0fcac8]

Gavin Shan (1):
      powerpc/eeh: Don't check RTAS token to get PE addr
         [b8b3de224f194005ad87ede6fd022fcc2bef3b1a]

George Cherian (1):
      usb: dwc3: gadget: free trb pool only from epnum 2
         [5bf8fae33d14cc5c3c53a926f9079f92c8b082b0]

Gomella, Andrew (NIH/NHLBI) [F] (1):
      USB: ftdi_sio: Add support for Newport CONEX motor drivers
         [7138143972b7c293267c783fc99a194f0ceff7f2]

Gregory CLEMENT (1):
      ARM: plat-orion: Fix num_resources and id for ge10 and ge11
         [2b8b2797142c7951e635c6eec5d1705ee9bc45c5]

Guenter Roeck (1):
      hwmon: (adm1021) Strengthen chip detection for ADM1021, LM84 and MAX1617
         [591bfcfc334a003ba31c0deff03b22e73349939b]

Hans-Christian Egtvedt (1):
      avr32: fix relocation check for signed 18-bit offset
         [e68c636d88db3fda74e664ecb1a213ae0d50a7d8]

Heiko Abraham (1):
      Input: egalax_ts - ABS_MT_POSITION_Y not reported well
         [3c9cfa782e075cc2348b949ba139911aac02c7cb]

Huacai Chen (1):
      drm: fix a use-after-free when GPU acceleration disabled
         [b7ea85a4fed37835eec78a7be3039c8dc22b8178]

Imre Deak (1):
      wait: fix false timeouts when using wait_event_timeout()
         [4c663cfc523a88d97a8309b04a089c27dc57fd7e]

Jeff Layton (2):
      cifs: fix potential buffer overrun when composing a new options string
         [166faf21bd14bc5c5295a44874bf7f3930c30b20]
      cifs: only set ops for inodes in I_NEW state
         [c2b93e0699723700f886ce17bb65ffd771195a6d]

Jeff Mahoney (3):
      reiserfs: fix spurious multiple-fill in reiserfs_readdir_dentry
         [0bdc7acba56a7ca4232f15f37b16f7ec079385ab]
      reiserfs: fix problems with chowning setuid file w/ xattrs
         [4a8570112b76a63ad21cfcbe2783f98f7fd5ba1b]
      reiserfs: fix deadlock with nfs racing on create/lookup
         [a1457c0ce976bad1356b9b0437f2a5c3ab8a9cfc]

Jim Schutt (2):
      ceph: ceph_pagelist_append might sleep while atomic
         [39be95e9c8c0b5668c9f8806ffe29bf9f4bc0f40]
      ceph: add cpu_to_le32() calls when encoding a reconnect capability
         [c420276a532a10ef59849adc2681f45306166b89]

Jiri Kosina (1):
      random: fix accounting race condition with lockless irq entropy_count update
         [10b3a32d292c21ea5b3ad5ca5975e88bb20b8d68]

Joerg Roedel (1):
      iommu/amd: Workaround for ERBT1312
         [d3263bc29706e42f74d8800807c2dedf320d77f1]

Johan Hedberg (1):
      Bluetooth: Fix mgmt handling of power on failures
         [96570ffcca0b872dc8626e97569d2697f374d868]

Johan Hovold (15):
      USB: spcp8x5: fix device initialisation at open
         [5e4211f1c47560c36a8b3d4544dfd866dcf7ccd0]
      USB: pl2303: fix device initialisation at open
         [2d8f4447b58bba5f8cb895c07690434c02307eaf]
      USB: io_ti: fix chars_in_buffer overhead
         [b16634adce951a7371be931487034f7365971ed0]
      USB: serial: add generic wait_until_sent implementation
         [dcf0105039660e951dfea348d317043d17988dfc]
      USB: serial: add wait_until_sent operation
         [0693196fe7bbb5e6cafd255dfce91ff6d10bc18f]
      USB: mos7720: fix hardware flow control
         [a26f009a070e840fadacb91013b2391ba7ab6cc2]
      USB: mos7720: fix message timeouts
         [849513a7809175420d353625b6f651d961e99d49]
      USB: mos7720: fix DMA to stack
         [72ea18a558ed7a63a50bb121ba60d73b5b38ae30]
      USB: mos7840: fix DMA to stack
         [15ee89c3347fbf58a4361011eda5ac2731e45126]
      USB: serial: fix Treo/Kyocera interrrupt-in urb context
         [5f8e2c07d75967ee49a5da1d21ddf5f50d48cda0]
      USB: whiteheat: fix broken port configuration
         [9eecf22d2b375b9064a20421c6c307b760b03d46]
      USB: visor: fix initialisation of Treo/Kyocera devices
         [420021a395ce38b7ab2cceb52dee4038be7d8fa3]
      USB: ark3116: fix control-message timeout
         [634371911730a462626071065b64cd6e1fe213e0]
      USB: keyspan: fix bogus array index
         [a07088098a650267b2eda689538133a324b9523f]
      USB: iuu_phoenix: fix bulk-message timeout
         [6c13ff68a7ce01da7a51b44241a7aad8eaaedde7]

Johannes Berg (4):
      cfg80211: check wdev->netdev in connection work
         [c815797663b72e3ac1736f1886538152bc48e4af]
      mac80211: close AP_VLAN interfaces before unregistering all
         [c8aa22db0112f640ac6631347f850879c621840b]
      mac80211: fix AP-mode frame matching
         [2b9ccd4e4308272e5aec614b77c5385e7ec2ec90]
      cfg80211: fix wiphy_register error path
         [03cd7e4e1ea16cd151c799a33b5ca1fd41a464df]

Johannes Weiner (1):
      mm: memcg: remove incorrect VM_BUG_ON for swap cache pages in uncharge
         [28ccddf7952c496df2a51ce5aee4f2a058a98bab]

Joseph Qi (1):
      ocfs2: goto out_unlock if ocfs2_get_clusters_nocache() failed in ocfs2_fiemap()
         [b4ca2b4b577c3530e34dcfaafccb2cc680ce95d1]

Kees Cook (4):
      x86: Fix typo in kexec register clearing
         [c8a22d19dd238ede87aa0ac4f7dbea8da039b9c1]
      kmsg: honor dmesg_restrict sysctl on /dev/kmsg
         [637241a900cbd982f744d44646b48a273d609b34]
      b43: stop format string leaking into error msgs
         [e0e29b683d6784ef59bbc914eac85a04b650e63c]
      iscsi-target: fix heap buffer overflow on error
         [cea4dcfdad926a27a18e188720efe0f2c9403456]

Kishon Vijay Abraham I (1):
      regulator: palmas: Fix "enable_reg" to point to the correct reg for SMPS10
         [f232168df0c7e7414b70ac5d8fed83086d441c0b]

Kleber Sacilotto de Souza (2):
      radeon: use max_bus_speed to activate gen2 speeds
         [7e0e41963740525af702bb23edede8ae9afc4ac0]
      powerpc/pseries: Perform proper max_bus_speed detection
         [d82fb31abc46620b7c22758c75707069f2763646]

Konrad Rzeszutek Wilk (1):
      xen/smp: Fixup NOHZ per cpu data when onlining an offline CPU.
         [466318a87f28cb3ba0d08a3b7ef1a37ae73d5aa7]

Leonid Yegoshin (1):
      mm compaction: fix of improper cache flush in migration code
         [c2cc499c5bcf9040a738f49e8051b42078205748]

Martin Michlmayr (1):
      Kirkwood: Enable PCIe port 1 on QNAP TS-11x/TS-21x
         [99e11334dcb846f9b76fb808196c7f47aa83abb3]

Michael Chan (1):
      tg3: Fix data corruption on 5725 with TSO
         [0f0d15100a8ac875bdd408324c473e16d73d3557]

Michael Ellerman (1):
      powerpc: Fix stack overflow crash in resume_kernel when ftracing
         [0e37739b1c96d65e6433998454985de994383019]

Michael Hennerich (1):
      iio: frequency: ad4350: Fix bug / typo in mask
         [2eb3a81eef0510511a3211bb3da560f446a8c8de]

Naoya Horiguchi (1):
      mm: migration: add migrate_entry_wait_huge()
         [30dad30922ccc733cfdbfe232090cf674dc374dc]

NeilBrown (1):
      md/raid1,raid10: use freeze_array in place of raise_barrier in various places.
         [e2d59925221cd562e07fee38ec8839f7209ae603]

Nicholas Bellinger (2):
      target: Re-instate sess_wait_list for target_wait_for_sess_cmds
         [9b31a328e344e62e7cc98ae574edcb7b674719bb]
      ib_srpt: Call target_sess_cmd_list_set_waiting during shutdown_session
         [1d19f7800d643b270b28d0a969c5eca455d54397]

Nicolas Schichan (1):
      ASoC: cs42l52: fix default value for MASTERA_VOL.
         [04d245b7899c020559402841d2f70ddd740a7704]

Nithin Sujir (2):
      tg3: Add read dma workaround for 5720
         [9bc297ea0622bb2a6b3abfa2fa84f0a3b86ef8c8]
      tg3: Skip powering down function 0 on certain serdes devices
         [44f3b503c16425c8e9db4bbaa2fc9cd0c9d0ba91]

OGAWA Hirofumi (1):
      fat: fix possible overflow for fat_clusters
         [7b92d03c3239f43e5b86c9cc9630f026d36ee995]

Oliver Neukum (1):
      USB: reset resume quirk needed by a hub
         [bac6b03275184c912ad0818c9a0a736847804dca]

Patrik Jakobsson (3):
      drm/gma500/cdv: Unpin framebuffer on crtc disable
         [22e7c385a80d771aaf3a15ae7ccea3b0686bbe10]
      drm/gma500/psb: Unpin framebuffer on crtc disable
         [820de86a90089ee607d7864538c98a23b503c846]
      drm/gma500: Increase max resolution for mode setting
         [cbbd379aa43890f36da934f5af619d2fb8ec3d87]

Paul Mackerras (1):
      powerpc: Fix emulation of illegal instructions on PowerNV platform
         [bf593907f7236e95698a76b7c7a2bbf8b1165327]

Paul Taysom (1):
      ecryptfs: fixed msync to flush data
         [c15cddd900e867c5adfb3c79596479dc5975f743]

Rabin Vincent (1):
      dmaengine: ste_dma40: fix pm runtime ref counting
         [9ecb41bd8cf002fd8f3e063db4df81647ddd623c]

Rafael Aquini (1):
      swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion
         [cbab0e4eec299e9059199ebe6daf48730be46d2b]

Richard Weinberger (1):
      USB: serial: Add Option GTM681W to qcserial device table.
         [8a2f132a01c2dd4c3905fa560f92019761ed72b1]

Robert Butora (1):
      USB: Serial: cypress_M8: Enable FRWD Dongle hidcom device
         [6529591e3eef65f0f528a81ac169f6e294b947a7]

Robin Holt (1):
      reboot: rigrate shutdown/reboot to boot cpu
         [cf7df378aa4ff7da3a44769b7ff6e9eef1a9f3db]

Ryusuke Konishi (1):
      nilfs2: fix issue of nilfs_set_page_dirty() for page at EOF boundary
         [136e8770cd5d1fe38b3c613100dd6dc4db6d4fa6]

Sage Weil (5):
      libceph: wrap auth methods in a mutex
         [e9966076cdd952e19f2dd4854cd719be0d7cbebc]
      libceph: wrap auth ops in wrapper functions
         [27859f9773e4a0b2042435b13400ee2c891a61f4]
      libceph: add update_authorizer auth method
         [0bed9b5c523d577378b6f83eab5835fe30c27208]
      libceph: fix authorizer invalidation
         [4b8e8b5d78b8322351d44487c1b76f7e9d3412bc]
      libceph: clear messenger auth_retry flag when we authenticate
         [20e55c4cc758e4dccdfd92ae8e9588dd624b2cd7]

Sarah Sharp (1):
      xhci: Disable D3cold for buggy TI redrivers.
         [c3897aa5386faba77e5bbdf94902a1658d3a5b11]

Schemmel Hans-Christoph (1):
      USB: Blacklisted Cinterion's PLxx WWAN Interface
         [8ff10bdb14a52e3f25d4ce09e0582a8684c1a6db]

Sergio Aguirre (1):
      xhci-mem: init list heads at the beginning of init
         [331de00a64e5027365145bdf51da27b9ce15dfd5]

Srivatsa S. Bhat (1):
      CPU hotplug: provide a generic helper to disable/enable CPU hotplug
         [16e53dbf10a2d7e228709a7286310e629ede5e45]

Stephen M. Cameron (1):
      cciss: fix broken mutex usage in ioctl
         [03f47e888daf56c8e9046c674719a0bcc644eed5]

Sujith Manoharan (2):
      ath9k: Use minstrel rate control by default
         [5efac94999ff218e0101f67a059e44abb4b0b523]
      ath9k: Disable PowerSave by default
         [531671cb17af07281e6f28c1425f754346e65c41]

Suravee Suthikulpanit (1):
      iommu/amd: Re-enable IOMMU event log interrupt after handling.
         [925fe08bce38d1ff052fe2209b9e2b8d5fbb7f98]

Takashi Iwai (2):
      ALSA: usb-audio - Fix invalid volume resolution on Logitech HD webcam c270
         [11e7064f35bb87da8f427d1aa4bbd8b7473a3993]
      ALSA: usb-audio - Apply Logitech QuickCam Pro 9000 quirk only to audio iface
         [8eafc0a161123d90617c9ca2eddfe87b382b1b89]

Teppo Kotilainen (1):
      usb: option: Add Telewell TW-LTE 4G
         [73c042df6e1bc50544842a04b777b36bbe3630e6]

Tony Camuso (1):
      xhci - correct comp_mode_recovery_timer on return from hibernate
         [77df9e0b799b03e1d5d9c68062709af5f637e834]

Tony Lindgren (1):
      drivers/rtc/rtc-twl.c: fix missing device_init_wakeup() when booted with device tree
         [24b8256a1fb28d357bc6fa09184ba29b4255ba5c]

Trond Myklebust (2):
      NFSv4: Fix a thinko in nfs4_try_open_cached
         [f448badd34700ae728a32ba024249626d49c10e1]
      SUNRPC: Prevent an rpc_task wakeup race
         [a3c3cac5d31879cd9ae2de7874dc6544ca704aec]

Tyler Hicks (1):
      eCryptfs: Check return of filemap_write_and_wait during fsync
         [bc5abcf7e411b889f73ea2a90439071a0f451011]

Vincent Pelletier (1):
      libata: make ata_exec_internal_sg honor DMADIR
         [e771451c0a831d96a7c14b0ca8a8ec671d98567b]

Vladimir Murzin (1):
      xhci: fix list access before init
         [88696ae432ce7321540ac53d9caab3de9118b094]

Wang YanQing (1):
      TTY: Fix tty miss restart after we turn off flow-control
         [dab73b4eb9ef924a2b90dab84e539076d82b256f]

Wei Liu (7):
      xen-netback: better names for thresholds
         [376414945d15aa636e65f7e773c1e398b7a21cb9]
      xen-netfront: reduce gso_max_size to account for max TCP header
         [9ecd1a75d977e2e8c48139c7d3efed183f898d94]
      xen-netback: avoid allocating variable size array on stack
         [59ccb4ebbc35e36a3c143f2d1355deb75c2e628f]
      xen-netback: remove redundent parameter in netbk_count_requests
         [ac69c26e7accb04ae2cb9ab0872068983a42b3c8]
      xen-netback: don't disconnect frontend when seeing oversize packet
         [03393fd5cc2b6cdeec32b704ecba64dbb0feae3c]
      xen-netback: coalesce slots in TX path and fix regressions
         [2810e5b9a7731ca5fce22bfbe12c96e16ac44b6f]
      xen-netback: remove skb in xen_netbk_alloc_page
         [27f852282ab9a028f57da96d05c26f38c424a315]

----
 arch/arm/boot/compressed/Makefile                  |    2 +-
 arch/arm/boot/compressed/head-sa1100.S             |    1 +
 arch/arm/boot/compressed/head-shark.S              |    1 +
 arch/arm/boot/compressed/head.S                    |    1 +
 arch/arm/kernel/topology.c                         |    2 +
 arch/arm/mach-kirkwood/ts219-setup.c               |    2 +-
 arch/arm/plat-orion/common.c                       |   12 +-
 arch/avr32/kernel/module.c                         |    2 +-
 arch/m68k/kernel/head.S                            |   29 +-
 arch/powerpc/include/asm/exception-64s.h           |    2 +-
 arch/powerpc/include/asm/machdep.h                 |    3 +
 arch/powerpc/include/asm/pci-bridge.h              |    2 +
 arch/powerpc/kernel/exceptions-64s.S               |    2 +-
 arch/powerpc/kernel/irq.c                          |    2 +-
 arch/powerpc/kernel/pci-common.c                   |   21 ++
 arch/powerpc/kernel/process.c                      |    4 +-
 arch/powerpc/kernel/traps.c                        |   10 +
 arch/powerpc/platforms/pseries/eeh_pseries.c       |   12 +-
 arch/powerpc/platforms/pseries/msi.c               |   21 +-
 arch/powerpc/platforms/pseries/pci.c               |   53 ++++
 arch/powerpc/platforms/pseries/pseries.h           |    4 +
 arch/powerpc/platforms/pseries/setup.c             |    3 +
 arch/x86/kernel/relocate_kernel_64.S               |    2 +-
 arch/x86/xen/smp.c                                 |    8 +
 drivers/acpi/video.c                               |   16 +
 drivers/acpi/video_detect.c                        |    8 +
 drivers/ata/ata_piix.c                             |   15 +
 drivers/ata/libata-core.c                          |    6 +
 drivers/block/brd.c                                |    4 +-
 drivers/block/cciss.c                              |   32 +-
 drivers/char/random.c                              |   24 +-
 drivers/dma/ste_dma40.c                            |    8 +-
 drivers/gpu/drm/drm_irq.c                          |    6 +-
 drivers/gpu/drm/gma500/cdv_intel_display.c         |   14 +
 drivers/gpu/drm/gma500/framebuffer.c               |    4 +-
 drivers/gpu/drm/gma500/psb_intel_display.c         |   14 +
 drivers/gpu/drm/i915/intel_lvds.c                  |    4 +-
 drivers/gpu/drm/i915/intel_sdvo.c                  |   12 +-
 drivers/gpu/drm/mgag200/mgag200_mode.c             |    9 +-
 drivers/gpu/drm/radeon/atombios_encoders.c         |   11 +-
 drivers/gpu/drm/radeon/evergreen.c                 |   20 +-
 drivers/gpu/drm/radeon/ni.c                        |   10 +-
 drivers/gpu/drm/radeon/r100.c                      |    9 +-
 drivers/gpu/drm/radeon/r300.c                      |    9 +-
 drivers/gpu/drm/radeon/r420.c                      |   10 +-
 drivers/gpu/drm/radeon/r520.c                      |    9 +-
 drivers/gpu/drm/radeon/r600.c                      |   19 +-
 drivers/gpu/drm/radeon/radeon_device.c             |   19 +-
 drivers/gpu/drm/radeon/rs400.c                     |    9 +-
 drivers/gpu/drm/radeon/rs600.c                     |    9 +-
 drivers/gpu/drm/radeon/rs690.c                     |    9 +-
 drivers/gpu/drm/radeon/rv515.c                     |    9 +-
 drivers/gpu/drm/radeon/rv770.c                     |   19 +-
 drivers/gpu/drm/radeon/si.c                        |   12 +-
 drivers/hwmon/adm1021.c                            |   58 +++-
 drivers/iio/frequency/adf4350.c                    |    2 +-
 drivers/infiniband/ulp/srpt/ib_srpt.c              |   32 +-
 drivers/infiniband/ulp/srpt/ib_srpt.h              |    1 +
 drivers/input/touchscreen/egalax_ts.c              |    2 +-
 drivers/iommu/amd_iommu.c                          |   31 +-
 drivers/iommu/amd_iommu_types.h                    |    1 +
 drivers/leds/leds-ot200.c                          |   14 +-
 drivers/md/raid1.c                                 |   34 ++-
 drivers/md/raid10.c                                |   26 +-
 drivers/net/ethernet/broadcom/tg3.c                |   70 ++++-
 drivers/net/ethernet/broadcom/tg3.h                |    6 +-
 drivers/net/wireless/ath/ath9k/Kconfig             |   10 +-
 drivers/net/wireless/ath/ath9k/Makefile            |    2 +-
 .../net/wireless/ath/ath9k/ar9003_2p2_initvals.h   |   10 +-
 drivers/net/wireless/ath/ath9k/ar9003_eeprom.h     |    9 +-
 drivers/net/wireless/ath/ath9k/init.c              |    7 +-
 drivers/net/wireless/ath/ath9k/rc.h                |    2 +-
 drivers/net/wireless/b43/main.c                    |    2 +-
 drivers/net/wireless/iwlwifi/dvm/sta.c             |    2 +-
 drivers/net/xen-netback/netback.c                  |  311 ++++++++++++++++----
 drivers/net/xen-netfront.c                         |   17 +-
 drivers/rapidio/devices/tsi721.c                   |   12 +
 drivers/regulator/palmas-regulator.c               |    2 +-
 drivers/rtc/rtc-twl.c                              |    1 +
 drivers/target/iscsi/iscsi_target_parameters.c     |    8 +-
 drivers/target/iscsi/iscsi_target_parameters.h     |    4 +-
 drivers/target/target_core_transport.c             |   18 +-
 drivers/tty/n_tty.c                                |    8 +
 drivers/usb/atm/cxacru.c                           |    3 +-
 drivers/usb/core/quirks.c                          |    3 +
 drivers/usb/dwc3/gadget.c                          |   17 +-
 drivers/usb/host/uhci-hub.c                        |    3 +-
 drivers/usb/host/xhci-mem.c                        |   27 +-
 drivers/usb/host/xhci-pci.c                        |   10 +
 drivers/usb/host/xhci.c                            |   16 +-
 drivers/usb/host/xhci.h                            |    3 +
 drivers/usb/serial/ark3116.c                       |    2 +-
 drivers/usb/serial/cypress_m8.c                    |   18 +-
 drivers/usb/serial/cypress_m8.h                    |    4 +
 drivers/usb/serial/ftdi_sio.c                      |    2 +
 drivers/usb/serial/ftdi_sio_ids.h                  |    2 +
 drivers/usb/serial/generic.c                       |   31 ++
 drivers/usb/serial/io_ti.c                         |   14 +
 drivers/usb/serial/iuu_phoenix.c                   |    4 +-
 drivers/usb/serial/keyspan.c                       |    2 +-
 drivers/usb/serial/mos7720.c                       |   25 +-
 drivers/usb/serial/mos7840.c                       |   35 ++-
 drivers/usb/serial/option.c                        |   11 +
 drivers/usb/serial/pl2303.c                        |   10 +-
 drivers/usb/serial/qcserial.c                      |    1 +
 drivers/usb/serial/spcp8x5.c                       |   10 +-
 drivers/usb/serial/usb-serial.c                    |   19 ++
 drivers/usb/serial/visor.c                         |    9 +
 drivers/usb/serial/whiteheat.c                     |    2 +-
 fs/ceph/locks.c                                    |   73 +++--
 fs/ceph/mds_client.c                               |   90 +++---
 fs/ceph/super.h                                    |    9 +-
 fs/cifs/cifs_dfs_ref.c                             |    4 +-
 fs/cifs/inode.c                                    |    3 +-
 fs/ecryptfs/file.c                                 |    6 +
 fs/fat/inode.c                                     |   15 +-
 fs/jfs/inode.c                                     |    2 +-
 fs/jfs/jfs_logmgr.c                                |    3 +-
 fs/nfs/nfs4proc.c                                  |    2 +-
 fs/nilfs2/inode.c                                  |   27 +-
 fs/ocfs2/extent_map.c                              |    2 +-
 fs/proc/kmsg.c                                     |   10 +-
 fs/reiserfs/dir.c                                  |    2 +
 fs/reiserfs/inode.c                                |    9 +-
 fs/reiserfs/xattr.c                                |   14 +-
 fs/reiserfs/xattr_acl.c                            |    3 +
 fs/xfs/xfs_iops.c                                  |   47 ++-
 include/linux/ceph/auth.h                          |   18 ++
 include/linux/cpu.h                                |    4 +
 include/linux/swapops.h                            |    3 +
 include/linux/syslog.h                             |    4 +-
 include/linux/usb/serial.h                         |    4 +
 include/linux/wait.h                               |   16 +-
 include/net/bluetooth/hci_core.h                   |    1 +
 include/net/bluetooth/mgmt.h                       |    1 +
 include/target/target_core_base.h                  |    1 +
 include/xen/interface/io/netif.h                   |   19 ++
 kernel/cpu.c                                       |   55 ++--
 kernel/printk.c                                    |   91 +++---
 kernel/sys.c                                       |   29 +-
 mm/huge_memory.c                                   |    7 +-
 mm/hugetlb.c                                       |    2 +-
 mm/memcontrol.c                                    |   14 +-
 mm/migrate.c                                       |   25 +-
 mm/pagewalk.c                                      |   70 ++---
 mm/swap_state.c                                    |   18 +-
 net/bluetooth/hci_core.c                           |    6 +-
 net/bluetooth/mgmt.c                               |   21 ++
 net/ceph/auth.c                                    |  117 ++++++--
 net/ceph/auth_x.c                                  |   24 +-
 net/ceph/auth_x.h                                  |    1 +
 net/ceph/messenger.c                               |    3 +-
 net/ceph/mon_client.c                              |    7 +-
 net/ceph/osd_client.c                              |   27 +-
 net/mac80211/iface.c                               |    9 +
 net/mac80211/rx.c                                  |    3 +
 net/sunrpc/sched.c                                 |    8 +-
 net/wireless/core.c                                |   16 +-
 net/wireless/sme.c                                 |    3 +
 sound/soc/codecs/cs42l52.c                         |    2 +-
 sound/usb/mixer.c                                  |    1 +
 sound/usb/quirks-table.h                           |   14 +-
 tools/perf/scripts/python/net_dropmonitor.py       |    8 +-
 163 files changed, 1870 insertions(+), 648 deletions(-)

[001/141] avr32: fix relocation check for signed 18-bit offset

[Steven Rostedt]

[-- Attachment #1: 0001-avr32-fix-relocation-check-for-signed-18-bit-offset.patch --]
[-- Type: text/plain, Size: 1077 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Hans-Christian Egtvedt <egtvedt@samfundet.no>

[ Upstream commit e68c636d88db3fda74e664ecb1a213ae0d50a7d8 ]

Caught by static code analysis by David.

Reported-by: David Binderman <dcb314@hotmail.com>
Signed-off-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: stable@kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/avr32/kernel/module.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
index 596f730..2c94129 100644
--- a/arch/avr32/kernel/module.c
+++ b/arch/avr32/kernel/module.c
@@ -264,7 +264,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
 			break;
 		case R_AVR32_GOT18SW:
 			if ((relocation & 0xfffe0003) != 0
-			    && (relocation & 0xfffc0003) != 0xffff0000)
+			    && (relocation & 0xfffc0000) != 0xfffc0000)
 				return reloc_overflow(module, "R_AVR32_GOT18SW",
 						     relocation);
 			relocation >>= 2;
-- 
1.7.10.4

[002/141] ARM: plat-orion: Fix num_resources and id for ge10 and ge11

[Steven Rostedt]

[-- Attachment #1: 0002-ARM-plat-orion-Fix-num_resources-and-id-for-ge10-and.patch --]
[-- Type: text/plain, Size: 2212 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Gregory CLEMENT <gregory.clement@free-electrons.com>

[ Upstream commit 2b8b2797142c7951e635c6eec5d1705ee9bc45c5 ]

When platform data were moved from arch/arm/mach-mv78xx0/common.c to
arch/arm/plat-orion/common.c with the commit "7e3819d ARM: orion:
Consolidate ethernet platform data", there were few typo made on
gigabit Ethernet interface ge10 and ge11. This commit writes back
their initial value, which allows to use this interfaces again.

Signed-off-by: Gregory CLEMENT <gregory.clement@free-electrons.com>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Cc: <stable@vger.kernel.org> # v3.0.x
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/arm/plat-orion/common.c |   12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index b8b747a..bd65e73 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -373,7 +373,7 @@ static struct resource orion_ge10_shared_resources[] = {
 
 static struct platform_device orion_ge10_shared = {
 	.name		= MV643XX_ETH_SHARED_NAME,
-	.id		= 1,
+	.id		= 2,
 	.dev		= {
 		.platform_data	= &orion_ge10_shared_data,
 	},
@@ -388,8 +388,8 @@ static struct resource orion_ge10_resources[] = {
 
 static struct platform_device orion_ge10 = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
-	.num_resources	= 2,
+	.id		= 2,
+	.num_resources	= 1,
 	.resource	= orion_ge10_resources,
 	.dev		= {
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
@@ -425,7 +425,7 @@ static struct resource orion_ge11_shared_resources[] = {
 
 static struct platform_device orion_ge11_shared = {
 	.name		= MV643XX_ETH_SHARED_NAME,
-	.id		= 1,
+	.id		= 3,
 	.dev		= {
 		.platform_data	= &orion_ge11_shared_data,
 	},
@@ -440,8 +440,8 @@ static struct resource orion_ge11_resources[] = {
 
 static struct platform_device orion_ge11 = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
-	.num_resources	= 2,
+	.id		= 3,
+	.num_resources	= 1,
 	.resource	= orion_ge11_resources,
 	.dev		= {
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
-- 
1.7.10.4

[003/141] cfg80211: fix wiphy_register error path

[Steven Rostedt]

[-- Attachment #1: 0003-cfg80211-fix-wiphy_register-error-path.patch --]
[-- Type: text/plain, Size: 1484 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 03cd7e4e1ea16cd151c799a33b5ca1fd41a464df ]

If rfkill_register() fails in wiphy_register() the struct device
is unregistered but everything else isn't (regulatory, debugfs)
and we even leave the wiphy instance on all internal lists even
though it will likely be freed soon, which is clearly a problem.
Fix this by cleaning up properly.

Cc: stable@vger.kernel.org
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/wireless/core.c |   16 ++++++++++------
 1 file changed, 10 insertions(+), 6 deletions(-)

diff --git a/net/wireless/core.c b/net/wireless/core.c
index 5797032..a10901b 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -572,17 +572,21 @@ int wiphy_register(struct wiphy *wiphy)
 	 * cfg80211_mutex lock
 	 */
 	res = rfkill_register(rdev->rfkill);
-	if (res)
-		goto out_rm_dev;
+	if (res) {
+		device_del(&rdev->wiphy.dev);
+
+		mutex_lock(&cfg80211_mutex);
+		debugfs_remove_recursive(rdev->wiphy.debugfsdir);
+		list_del_rcu(&rdev->list);
+		wiphy_regulatory_deregister(wiphy);
+		mutex_unlock(&cfg80211_mutex);
+		return res;
+	}
 
 	rtnl_lock();
 	rdev->wiphy.registered = true;
 	rtnl_unlock();
 	return 0;
-
-out_rm_dev:
-	device_del(&rdev->wiphy.dev);
-	return res;
 }
 EXPORT_SYMBOL(wiphy_register);
 
-- 
1.7.10.4

[004/141] mac80211: fix AP-mode frame matching

[Steven Rostedt]

[-- Attachment #1: 0004-mac80211-fix-AP-mode-frame-matching.patch --]
[-- Type: text/plain, Size: 1198 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit 2b9ccd4e4308272e5aec614b77c5385e7ec2ec90 ]

In AP mode, ignore frames with mis-matched BSSID that aren't
multicast or sent to the correct destination. This fixes
reporting public action frames to userspace multiple times
on multiple virtual AP interfaces.

Cc: stable@vger.kernel.org
Reported-by: Jouni Malinen <j@w1.fi>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/mac80211/rx.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 37fe5ce..bd11c1c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2813,6 +2813,9 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 			 * and location updates. Note that mac80211
 			 * itself never looks at these frames.
 			 */
+			if (!multicast &&
+			    !ether_addr_equal(sdata->vif.addr, hdr->addr1))
+				return 0;
 			if (ieee80211_is_public_action(hdr, skb->len))
 				return 1;
 			if (!ieee80211_is_beacon(hdr->frame_control))
-- 
1.7.10.4

[005/141] usb: option: Add Telewell TW-LTE 4G

[Steven Rostedt]

[-- Attachment #1: 0005-usb-option-Add-Telewell-TW-LTE-4G.patch --]
[-- Type: text/plain, Size: 1561 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Teppo Kotilainen <qubit303@gmail.com>

[ Upstream commit 73c042df6e1bc50544842a04b777b36bbe3630e6 ]

Information from driver description files:

  diag:  VID_19D2&PID_0412&MI_00
  nmea:  VID_19D2&PID_0412&MI_01
  at:    VID_19D2&PID_0412&MI_02
  modem: VID_19D2&PID_0412&MI_03
  net:   VID_19D2&PID_0412&MI_04

Signed-off-by: Teppo Kotilainen <qubit303@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/option.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 1689782..ff62810 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -931,6 +931,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0330, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0395, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0412, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
-- 
1.7.10.4

[006/141] USB: option: add device IDs for Dell 5804 (Novatel E371) WWAN card

[Steven Rostedt]

[-- Attachment #1: 0006-USB-option-add-device-IDs-for-Dell-5804-Novatel-E371.patch --]
[-- Type: text/plain, Size: 1794 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Dan Williams <dcbw@redhat.com>

[ Upstream commit 49c6e370dd6400b84897c4100095089b5c13a061 ]

A rebranded Novatel E371 for AT&T's LTE bands.

Cc: stable <stable@vger.kernel.org>
Signed-off-by: Dan Williams <dcbw@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/option.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index ff62810..4fa928d 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -197,6 +197,7 @@ static void option_instat_callback(struct urb *urb);
 
 #define DELL_PRODUCT_5800_MINICARD_VZW		0x8195  /* Novatel E362 */
 #define DELL_PRODUCT_5800_V2_MINICARD_VZW	0x8196  /* Novatel E362 */
+#define DELL_PRODUCT_5804_MINICARD_ATT		0x819b  /* Novatel E371 */
 
 #define KYOCERA_VENDOR_ID			0x0c88
 #define KYOCERA_PRODUCT_KPC650			0x17da
@@ -740,6 +741,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) }, 	/* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
-- 
1.7.10.4

[007/141] USB: ftdi_sio: Add support for Newport CONEX motor drivers

[Steven Rostedt]

[-- Attachment #1: 0007-USB-ftdi_sio-Add-support-for-Newport-CONEX-motor-dri.patch --]
[-- Type: text/plain, Size: 2281 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: "Gomella, Andrew (NIH/NHLBI) [F]" <andrew.gomella@nih.gov>

[ Upstream commit 7138143972b7c293267c783fc99a194f0ceff7f2 ]

Here are two more devices that use FTDI USB-to-serial chips with new product ID's.

The devices are the Newport Conex-AGP and Conex-CC motor controllers.
(http://www.newport.com/CONEX-AGP-Integrated-Piezo-Motor-Rotation-Stages-/987623/1033/info.aspx)
(http://www.newport.com/CONEX-CC-DC-Servo-Controller-Actuators/934114/1033/info.aspx)

usb-devices command yields:

P:  Vendor=104d ProdID=3002 Rev=06.00
S:  Manufacturer=Newport
S:  Product=CONEX-CC

as well as

P:  Vendor=104d ProdID=3006 Rev=06.00
S:  Manufacturer=Newport
S:  Product=CONEX-AGP

Signed-off-by: Andrew Gomella <andrew.gomella@nih.gov>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/ftdi_sio.c     |    2 ++
 drivers/usb/serial/ftdi_sio_ids.h |    2 ++
 2 files changed, 4 insertions(+)

diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 5843cc8..5c3e249 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -197,6 +197,8 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
+	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
+	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 5c84306..1e4bff5 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -765,6 +765,8 @@
  */
 #define NEWPORT_VID			0x104D
 #define NEWPORT_AGILIS_PID		0x3000
+#define NEWPORT_CONEX_CC_PID		0x3002
+#define NEWPORT_CONEX_AGP_PID		0x3006
 
 /* Interbiometrics USB I/O Board */
 /* Developed for Interbiometrics by Rudolf Gugler */
-- 
1.7.10.4

[008/141] USB: cxacru: potential underflow in cxacru_cm_get_array()

[Steven Rostedt]

[-- Attachment #1: 0008-USB-cxacru-potential-underflow-in-cxacru_cm_get_arra.patch --]
[-- Type: text/plain, Size: 1152 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Dan Carpenter <dan.carpenter@oracle.com>

[ Upstream commit 2a0ebf80aa95cc758d4725f74a7016e992606a39 ]

The value of "offd" comes off the instance->rcv_buf[] and we used it as
the offset into an array.  The problem is that we check the upper bound
but not for negative values.

Signed-off-by: Dan Carpenter <dan.carpenter@oracle.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/atm/cxacru.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index b7eb86a..8a7eb77 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -686,7 +686,8 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
 {
 	int ret, len;
 	__le32 *buf;
-	int offb, offd;
+	int offb;
+	unsigned int offd;
 	const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
 	int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
 
-- 
1.7.10.4

[009/141] TTY: Fix tty miss restart after we turn off flow-control

[Steven Rostedt]

[-- Attachment #1: 0009-TTY-Fix-tty-miss-restart-after-we-turn-off-flow-cont.patch --]
[-- Type: text/plain, Size: 1787 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wang YanQing <udknight@gmail.com>

[ Upstream commit dab73b4eb9ef924a2b90dab84e539076d82b256f ]

I meet emacs hang in start if I do the operation below:
  1: echo 3 > /proc/sys/vm/drop_caches
  2: emacs BigFile
  3: Press CTRL-S follow 2 immediately

Then emacs hang on, CTRL-Q can't resume, the terminal
hang on, you can do nothing with this terminal except
close it.

The reason is before emacs takeover control the tty,
we use CTRL-S to XOFF it. Then when emacs takeover the
control, it may don't use the flow-control, so emacs hang.
This patch fix it.

This patch will fix a kind of strange tty relation hang problem,
I believe I meet it with vim in ssh, and also see below bug report:
http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=465823

Signed-off-by: Wang YanQing <udknight@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/tty/n_tty.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 26f0d0e..72d3ff8 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1529,6 +1529,14 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 			tty->real_raw = 0;
 	}
 	n_tty_set_room(tty);
+	/*
+	 * Fix tty hang when I_IXON(tty) is cleared, but the tty
+	 * been stopped by STOP_CHAR(tty) before it.
+	 */
+	if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped) {
+		start_tty(tty);
+	}
+
 	/* The termios change make the tty ready for I/O */
 	wake_up_interruptible(&tty->write_wait);
 	wake_up_interruptible(&tty->read_wait);
-- 
1.7.10.4

[010/141] USB: Blacklisted Cinterions PLxx WWAN Interface

[Steven Rostedt]

[-- Attachment #1: 0010-USB-Blacklisted-Cinterion-s-PLxx-WWAN-Interface.patch --]
[-- Type: text/plain, Size: 1877 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Schemmel Hans-Christoph <Hans-Christoph.Schemmel@gemalto.com>

[ Upstream commit 8ff10bdb14a52e3f25d4ce09e0582a8684c1a6db ]

/drivers/usb/serial/option.c: Blacklisted Cinterion's PLxx WWAN
Interface (USB Interface 4), because it will be handled by QMI WWAN
driver. Product IDs renamed.

Signed-off-by: Hans-Christoph Schemmel <hans-christoph.schemmel@gemalto.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/option.c |    5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 4fa928d..625bc3b 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -341,6 +341,8 @@ static void option_instat_callback(struct urb *urb);
 #define CINTERION_PRODUCT_EU3_E			0x0051
 #define CINTERION_PRODUCT_EU3_P			0x0052
 #define CINTERION_PRODUCT_PH8			0x0053
+#define CINTERION_PRODUCT_AHXX			0x0055
+#define CINTERION_PRODUCT_PLXX			0x0060
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID			0x0b3c
@@ -1224,6 +1226,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_E) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
+		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, 
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
-- 
1.7.10.4

[011/141] USB: reset resume quirk needed by a hub

[Steven Rostedt]

[-- Attachment #1: 0011-USB-reset-resume-quirk-needed-by-a-hub.patch --]
[-- Type: text/plain, Size: 1074 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Oliver Neukum <oliver@neukum.org>

[ Upstream commit bac6b03275184c912ad0818c9a0a736847804dca ]

Werner Fink has reported problems with this hub.

Signed-off-by: Oliver Neukum <oliver@neukum.org>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/core/quirks.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index e77a8e8..6af23f2 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -85,6 +85,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Edirol SD-20 */
 	{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Alcor Micro Corp. Hub */
+	{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
-- 
1.7.10.4

[012/141] USB: xHCI: override bogus bulk wMaxPacketSize values

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0012-USB-xHCI-override-bogus-bulk-wMaxPacketSize-values.patch --]
[-- Type: text/plain, Size: 3225 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

[ Upstream commit e4f47e3675e6f1f40906b785b934ce963e9f2eb3 ]

This patch shortens the logic in xhci_endpoint_init() by moving common
calculations involving max_packet and max_burst outside the switch
statement, rather than repeating the same code in multiple
case-specific statements.  It also replaces two usages of max_packet
which were clearly intended to be max_burst all along.

More importantly, it compensates for a common bug in high-speed bulk
endpoint descriptors.  In many devices there is a bulk endpoint having
a wMaxPacketSize value smaller than 512, which is forbidden by the USB
spec.  Some xHCI controllers can't handle this and refuse to accept
the endpoint.  This patch changes the max_packet value to 512, which
allows the controller to use the endpoint properly.

In practice the bogus maxpacket size doesn't matter, because none of
the transfers sent via these endpoints are longer than the maxpacket
value anyway.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: "Aurélien Leblond" <blablack@gmail.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/host/xhci-mem.c |   17 +++++++++--------
 1 file changed, 9 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 487bc08..70db718 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1436,15 +1436,17 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 	ep_ctx->ep_info2 |= cpu_to_le32(xhci_get_endpoint_type(udev, ep));
 
 	/* Set the max packet size and max burst */
+	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
+	max_burst = 0;
 	switch (udev->speed) {
 	case USB_SPEED_SUPER:
-		max_packet = usb_endpoint_maxp(&ep->desc);
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		/* dig out max burst from ep companion desc */
-		max_packet = ep->ss_ep_comp.bMaxBurst;
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_packet));
+		max_burst = ep->ss_ep_comp.bMaxBurst;
 		break;
 	case USB_SPEED_HIGH:
+		/* Some devices get this wrong */
+		if (usb_endpoint_xfer_bulk(&ep->desc))
+			max_packet = 512;
 		/* bits 11:12 specify the number of additional transaction
 		 * opportunities per microframe (USB 2.0, section 9.6.6)
 		 */
@@ -1452,17 +1454,16 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 				usb_endpoint_xfer_int(&ep->desc)) {
 			max_burst = (usb_endpoint_maxp(&ep->desc)
 				     & 0x1800) >> 11;
-			ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_burst));
 		}
-		/* Fall through */
+		break;
 	case USB_SPEED_FULL:
 	case USB_SPEED_LOW:
-		max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		break;
 	default:
 		BUG();
 	}
+	ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet) |
+			MAX_BURST(max_burst));
 	max_esit_payload = xhci_get_max_esit_payload(xhci, udev, ep);
 	ep_ctx->tx_info = cpu_to_le32(MAX_ESIT_PAYLOAD_FOR_EP(max_esit_payload));
 
-- 
1.7.10.4

[013/141] USB: UHCI: fix for suspend of virtual HP controller

[Steven Rostedt]

[-- Attachment #1: 0013-USB-UHCI-fix-for-suspend-of-virtual-HP-controller.patch --]
[-- Type: text/plain, Size: 1642 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alan Stern <stern@rowland.harvard.edu>

[ Upstream commit 997ff893603c6455da4c5e26ba1d0f81adfecdfc ]

HP's virtual UHCI host controller takes a long time to suspend
(several hundred microseconds), even when no devices are attached.
This provokes a warning message from uhci-hcd in the auto-stop case.

To prevent this from happening, this patch adds a test to avoid
performing an auto-stop when the wait_for_hp quirk flag is set.  The
controller will still suspend through the normal runtime PM mechanism.
And since that pathway includes a 1-ms delay, the slowness of the
virtual hardware won't matter.

Signed-off-by: Alan Stern <stern@rowland.harvard.edu>
Reported-and-tested-by: ZhenHua <zhen-hual@hp.com>
CC: <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/host/uhci-hub.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 768d542..c994655 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -222,7 +222,8 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 		/* auto-stop if nothing connected for 1 second */
 		if (any_ports_active(uhci))
 			uhci->rh_state = UHCI_RH_RUNNING;
-		else if (time_after_eq(jiffies, uhci->auto_stop_time))
+		else if (time_after_eq(jiffies, uhci->auto_stop_time) &&
+				!uhci->wait_for_hp)
 			suspend_rh(uhci, UHCI_RH_AUTO_STOPPED);
 		break;
 
-- 
1.7.10.4

[014/141] Input: egalax_ts - ABS_MT_POSITION_Y not reported well

[Steven Rostedt]

[-- Attachment #1: 0014-Input-egalax_ts-ABS_MT_POSITION_Y-not-reported-well.patch --]
[-- Type: text/plain, Size: 1263 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Heiko Abraham <abrahamh@web.de>

[ Upstream commit 3c9cfa782e075cc2348b949ba139911aac02c7cb ]

The egalax_ts touchscreen modul not report ABS_MT_POSITION_Y proper.
As result it may be, that upper software levels only receive x coordinates well.

Signed-off-by: Heiko Abraham <abrahamh@web.de>
Cc: stable@vger.kernel.org
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/input/touchscreen/egalax_ts.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 70524dd..be2a271 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -203,7 +203,7 @@ static int __devinit egalax_ts_probe(struct i2c_client *client,
 	input_set_abs_params(input_dev,
 			     ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0);
 	input_set_abs_params(input_dev,
-			     ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0);
+			     ABS_MT_POSITION_Y, 0, EGALAX_MAX_Y, 0, 0);
 	input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS);
 
 	input_set_drvdata(input_dev, ts);
-- 
1.7.10.4

[015/141] cifs: only set ops for inodes in I_NEW state

[Steven Rostedt]

[-- Attachment #1: 0015-cifs-only-set-ops-for-inodes-in-I_NEW-state.patch --]
[-- Type: text/plain, Size: 1223 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jeff Layton <jlayton@redhat.com>

[ Upstream commit c2b93e0699723700f886ce17bb65ffd771195a6d ]

It's generally not safe to reset the inode ops once they've been set. In
the case where the inode was originally thought to be a directory and
then later found to be a DFS referral, this can lead to an oops when we
try to trigger an inode op on it after changing the ops to the blank
referral operations.

Cc: <stable@vger.kernel.org>
Reported-and-Tested-by: Sachin Prabhu <sprabhu@redhat.com>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <smfrench@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/cifs/inode.c |    3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index cb79c7e..8808dce 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -169,7 +169,8 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
 
 	if (fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL)
 		inode->i_flags |= S_AUTOMOUNT;
-	cifs_set_ops(inode);
+	if (inode->i_state & I_NEW)
+		cifs_set_ops(inode);
 }
 
 void
-- 
1.7.10.4

[016/141] random: fix accounting race condition with lockless irq entropy_count update

[Steven Rostedt]

[-- Attachment #1: 0016-random-fix-accounting-race-condition-with-lockless-i.patch --]
[-- Type: text/plain, Size: 2702 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jiri Kosina <jkosina@suse.cz>

[ Upstream commit 10b3a32d292c21ea5b3ad5ca5975e88bb20b8d68 ]

Commit 902c098a3663 ("random: use lockless techniques in the interrupt
path") turned IRQ path from being spinlock protected into lockless
cmpxchg-retry update.

That commit removed r->lock serialization between crediting entropy bits
from IRQ context and accounting when extracting entropy on userspace
read path, but didn't turn the r->entropy_count reads/updates in
account() to use cmpxchg as well.

It has been observed, that under certain circumstances this leads to
read() on /dev/urandom to return 0 (EOF), as r->entropy_count gets
corrupted and becomes negative, which in turn results in propagating 0
all the way from account() to the actual read() call.

Convert the accounting code to be the proper lockless counterpart of
what has been partially done by 902c098a3663.

Signed-off-by: Jiri Kosina <jkosina@suse.cz>
Cc: Theodore Ts'o <tytso@mit.edu>
Cc: Greg KH <greg@kroah.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/char/random.c |   24 ++++++++++++++++--------
 1 file changed, 16 insertions(+), 8 deletions(-)

diff --git a/drivers/char/random.c b/drivers/char/random.c
index b86eae9..35cfbb0 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -867,16 +867,24 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 	if (r->entropy_count / 8 < min + reserved) {
 		nbytes = 0;
 	} else {
+		int entropy_count, orig;
+retry:
+		entropy_count = orig = ACCESS_ONCE(r->entropy_count);
 		/* If limited, never pull more than available */
-		if (r->limit && nbytes + reserved >= r->entropy_count / 8)
-			nbytes = r->entropy_count/8 - reserved;
-
-		if (r->entropy_count / 8 >= nbytes + reserved)
-			r->entropy_count -= nbytes*8;
-		else
-			r->entropy_count = reserved;
+		if (r->limit && nbytes + reserved >= entropy_count / 8)
+			nbytes = entropy_count/8 - reserved;
+
+		if (entropy_count / 8 >= nbytes + reserved) {
+			entropy_count -= nbytes*8;
+			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+				goto retry;
+		} else {
+			entropy_count = reserved;
+			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+				goto retry;
+		}
 
-		if (r->entropy_count < random_write_wakeup_thresh) {
+		if (entropy_count < random_write_wakeup_thresh) {
 			wake_up_interruptible(&random_write_wait);
 			kill_fasync(&fasync, SIGIO, POLL_OUT);
 		}
-- 
1.7.10.4

[017/141] fat: fix possible overflow for fat_clusters

[Steven Rostedt]

[-- Attachment #1: 0017-fat-fix-possible-overflow-for-fat_clusters.patch --]
[-- Type: text/plain, Size: 1786 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>

[ Upstream commit 7b92d03c3239f43e5b86c9cc9630f026d36ee995 ]

Intermediate value of fat_clusters can be overflowed on 32bits arch.

Reported-by: Krzysztof Strasburger <strasbur@chkw386.ch.pwr.wroc.pl>
Signed-off-by: OGAWA Hirofumi <hirofumi@mail.parknet.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/fat/inode.c |   15 ++++++++++++++-
 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 05e897f..ca5241f 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1212,6 +1212,19 @@ static int fat_read_root(struct inode *inode)
 	return 0;
 }
 
+static unsigned long calc_fat_clusters(struct super_block *sb)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+
+	/* Divide first to avoid overflow */
+	if (sbi->fat_bits != 12) {
+		unsigned long ent_per_sec = sb->s_blocksize * 8 / sbi->fat_bits;
+		return ent_per_sec * sbi->fat_length;
+	}
+
+	return sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+}
+
 /*
  * Read the super block of an MS-DOS FS.
  */
@@ -1409,7 +1422,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 		sbi->fat_bits = (total_clusters > MAX_FAT12) ? 16 : 12;
 
 	/* check that FAT table does not overflow */
-	fat_clusters = sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+	fat_clusters = calc_fat_clusters(sb);
 	total_clusters = min(total_clusters, fat_clusters - FAT_START_ENT);
 	if (total_clusters > MAX_FAT(sb)) {
 		if (!silent)
-- 
1.7.10.4

[018/141] tg3: Skip powering down function 0 on certain serdes devices

[Steven Rostedt]

[-- Attachment #1: 0018-tg3-Skip-powering-down-function-0-on-certain-serdes-.patch --]
[-- Type: text/plain, Size: 2361 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Nithin Sujir <nsujir@broadcom.com>

[ Upstream commit 44f3b503c16425c8e9db4bbaa2fc9cd0c9d0ba91 ]

On the 5718, 5719 and 5720 serdes devices, powering down function 0
results in all the other ports being powered down. Add code to skip
function 0 power down.

v2:
 - Modify tg3_phy_power_bug() function to use a switch instead of a
   complicated if statement. Suggested by Joe Perches.

Cc: <stable@vger.kernel.org>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/ethernet/broadcom/tg3.c |   32 ++++++++++++++++++++++++++------
 1 file changed, 26 insertions(+), 6 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index fbc21a9..f0f26b0 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -2847,6 +2847,31 @@ static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
 	return 0;
 }
 
+static bool tg3_phy_power_bug(struct tg3 *tp)
+{
+	switch (GET_ASIC_REV(tp->pci_chip_rev_id)) {
+	case ASIC_REV_5700:
+	case ASIC_REV_5704:
+		return true;
+	case ASIC_REV_5780:
+		if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
+			return true;
+		return false;
+	case ASIC_REV_5717:
+		if (!tp->pci_fn)
+			return true;
+		return false;
+	case ASIC_REV_5719:
+	case ASIC_REV_5720:
+		if ((tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
+		    !tp->pci_fn)
+			return true;
+		return false;
+	}
+
+	return false;
+}
+
 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
 {
 	u32 val;
@@ -2903,12 +2928,7 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
 	/* The PHY should not be powered down on some chips because
 	 * of bugs.
 	 */
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
-	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
-	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
-	     (tp->phy_flags & TG3_PHYFLG_MII_SERDES)) ||
-	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
-	     !tp->pci_fn))
+	if (tg3_phy_power_bug(tp))
 		return;
 
 	if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
-- 
1.7.10.4

[019/141] tg3: Fix data corruption on 5725 with TSO

[Steven Rostedt]

[-- Attachment #1: 0019-tg3-Fix-data-corruption-on-5725-with-TSO.patch --]
[-- Type: text/plain, Size: 2465 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Michael Chan <mchan@broadcom.com>

[ Upstream commit 0f0d15100a8ac875bdd408324c473e16d73d3557 ]

The 5725 family of devices (asic rev 5762), corrupts TSO packets where
the buffer is within MSS bytes of a 4G boundary (4G, 8G etc.). Detect
this condition and trigger the workaround path.

Cc: <stable@vger.kernel.org>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/ethernet/broadcom/tg3.c |   17 +++++++++++++++++
 drivers/net/ethernet/broadcom/tg3.h |    1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index f0f26b0..1e7f1a8 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -6772,6 +6772,20 @@ static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
 	return (base > 0xffffdcc0) && (base + len + 8 < base);
 }
 
+/* Test for TSO DMA buffers that cross into regions which are within MSS bytes
+ * of any 4GB boundaries: 4G, 8G, etc
+ */
+static inline int tg3_4g_tso_overflow_test(struct tg3 *tp, dma_addr_t mapping,
+					   u32 len, u32 mss)
+{
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5762 && mss) {
+		u32 base = (u32) mapping & 0xffffffff;
+
+		return ((base + len + (mss & 0x3fff)) < base);
+	}
+	return 0;
+}
+
 /* Test for DMA addresses > 40-bit */
 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
 					  int len)
@@ -6808,6 +6822,9 @@ static bool tg3_tx_frag_set(struct tg3_napi *tnapi, u32 *entry, u32 *budget,
 	if (tg3_4g_overflow_test(map, len))
 		hwbug = true;
 
+	if (tg3_4g_tso_overflow_test(tp, map, len, mss))
+		hwbug = true;
+
 	if (tg3_40bit_overflow_test(tp, map, len))
 		hwbug = true;
 
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 3a58339..0f8e583 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -168,6 +168,7 @@
 #define   ASIC_REV_USE_PROD_ID_REG	 0x0f
 #define   ASIC_REV_5784			 0x5784
 #define   ASIC_REV_5761			 0x5761
+#define   ASIC_REV_5762			 0x5762
 #define   ASIC_REV_5785			 0x5785
 #define   ASIC_REV_57780		 0x57780
 #define   ASIC_REV_5717			 0x5717
-- 
1.7.10.4

[020/141] perf: net_dropmonitor: Fix trace parameter order

[Steven Rostedt]

[-- Attachment #1: 0020-perf-net_dropmonitor-Fix-trace-parameter-order.patch --]
[-- Type: text/plain, Size: 1133 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@decadent.org.uk>

[ Upstream commit 140c3c6a2bcd2c31e2f7f5a8d59689724776c8e5 ]

This works much better if we don't treat protocol numbers as addresses.

Cc: stable@vger.kernel.org
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 tools/perf/scripts/python/net_dropmonitor.py |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py
index a4ffc95..adbfbf0 100755
--- a/tools/perf/scripts/python/net_dropmonitor.py
+++ b/tools/perf/scripts/python/net_dropmonitor.py
@@ -64,7 +64,7 @@ def trace_end():
 
 # called from perf, when it finds a correspoinding event
 def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
-			skbaddr, protocol, location):
+		   skbaddr, location, protocol):
 	slocation = str(location)
 	try:
 		drop_log[slocation] = drop_log[slocation] + 1
-- 
1.7.10.4

[021/141] perf: net_dropmonitor: Fix symbol-relative addresses

[Steven Rostedt]

[-- Attachment #1: 0021-perf-net_dropmonitor-Fix-symbol-relative-addresses.patch --]
[-- Type: text/plain, Size: 1323 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Ben Hutchings <ben@decadent.org.uk>

[ Upstream commit 5a1e99dd2028e00998d42029be86835d8ef4a46e ]

The comparison between traced and symbol addresses is backwards: if
the traced address doesn't exactly match a symbol (which we don't
expect it to), we'll show the next symbol and the offset to it,
whereas we should show the previous symbol and the offset from it.

Cc: stable@vger.kernel.org
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 tools/perf/scripts/python/net_dropmonitor.py |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py
index adbfbf0..4c11605 100755
--- a/tools/perf/scripts/python/net_dropmonitor.py
+++ b/tools/perf/scripts/python/net_dropmonitor.py
@@ -40,9 +40,9 @@ def get_kallsyms_table():
 
 def get_sym(sloc):
 	loc = int(sloc)
-	for i in kallsyms:
-		if (i['loc'] >= loc):
-			return (i['name'], i['loc']-loc)
+	for i in kallsyms[::-1]:
+		if loc >= i['loc']:
+			return (i['name'], loc - i['loc'])
 	return (None, 0)
 
 def print_drop_table():
-- 
1.7.10.4

[022/141] ocfs2: goto out_unlock if ocfs2_get_clusters_nocache() failed in ocfs2_fiemap()

[Steven Rostedt]

[-- Attachment #1: 0022-ocfs2-goto-out_unlock-if-ocfs2_get_clusters_nocache-.patch --]
[-- Type: text/plain, Size: 1550 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Joseph Qi <joseph.qi@huawei.com>

[ Upstream commit b4ca2b4b577c3530e34dcfaafccb2cc680ce95d1 ]

Last time we found there is lock/unlock bug in ocfs2_file_aio_write, and
then we did a thorough search for all lock resources in
ocfs2_inode_info, including rw, inode and open lockres and found this
bug.  My kernel version is 3.0.13, and it is also in the lastest version
3.9.  In ocfs2_fiemap, once ocfs2_get_clusters_nocache failed, it should
goto out_unlock instead of out, because we need release buffer head, up
read alloc sem and unlock inode.

Signed-off-by: Joseph Qi <joseph.qi@huawei.com>
Reviewed-by: Jie Liu <jeff.liu@oracle.com>
Cc: Mark Fasheh <mfasheh@suse.com>
Cc: Joel Becker <jlbec@evilplan.org>
Acked-by: Sunil Mushran <sunil.mushran@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ocfs2/extent_map.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 70b5863..4dd0239 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -791,7 +791,7 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 						 &hole_size, &rec, &is_last);
 		if (ret) {
 			mlog_errno(ret);
-			goto out;
+			goto out_unlock;
 		}
 
 		if (rec.e_blkno == 0ULL) {
-- 
1.7.10.4

[023/141] Kirkwood: Enable PCIe port 1 on QNAP TS-11x/TS-21x

[Steven Rostedt]

[-- Attachment #1: 0023-Kirkwood-Enable-PCIe-port-1-on-QNAP-TS-11x-TS-21x.patch --]
[-- Type: text/plain, Size: 1193 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Martin Michlmayr <tbm@cyrius.com>

[ Upstream commit 99e11334dcb846f9b76fb808196c7f47aa83abb3 ]

Enable KW_PCIE1 on QNAP TS-11x/TS-21x devices as newer revisions
(rev 1.3) have a USB 3.0 chip from Etron on PCIe port 1.  Thanks
to Marek Vasut for identifying this issue!

Cc: <stable@vger.kernel.org> # v2.6.36.x
Signed-off-by: Martin Michlmayr <tbm@cyrius.com>
Tested-by: Marek Vasut <marex@denx.de>
Acked-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/arm/mach-kirkwood/ts219-setup.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/arm/mach-kirkwood/ts219-setup.c b/arch/arm/mach-kirkwood/ts219-setup.c
index 73e2b6c..3a73fc7 100644
--- a/arch/arm/mach-kirkwood/ts219-setup.c
+++ b/arch/arm/mach-kirkwood/ts219-setup.c
@@ -124,7 +124,7 @@ static void __init qnap_ts219_init(void)
 static int __init ts219_pci_init(void)
 {
 	if (machine_is_ts219())
-		kirkwood_pcie_init(KW_PCIE0);
+		kirkwood_pcie_init(KW_PCIE1 | KW_PCIE0);
 
 	return 0;
 }
-- 
1.7.10.4

[024/141] drivers/leds/leds-ot200.c: fix error caused by shifted mask

[Steven Rostedt]

[-- Attachment #1: 0024-drivers-leds-leds-ot200.c-fix-error-caused-by-shifte.patch --]
[-- Type: text/plain, Size: 1771 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Christian Gmeiner <christian.gmeiner@gmail.com>

[ Upstream commit 4b949b8af12e24b8a48fa5bb775a13b558d9f4da ]

During the development of this driver an in-house register documentation
was used.  The last week some integration tests were done and this
problem was found.  It turned out that the released register
documentation is wrong.

The fix is very simple: shift all masks by one.

Signed-off-by: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: Bryan Wu <cooloney@gmail.com>
Cc: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/leds/leds-ot200.c |   14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/leds/leds-ot200.c b/drivers/leds/leds-ot200.c
index c464682..676e729 100644
--- a/drivers/leds/leds-ot200.c
+++ b/drivers/leds/leds-ot200.c
@@ -47,37 +47,37 @@ static struct ot200_led leds[] = {
 	{
 		.name = "led_1",
 		.port = 0x49,
-		.mask = BIT(7),
+		.mask = BIT(6),
 	},
 	{
 		.name = "led_2",
 		.port = 0x49,
-		.mask = BIT(6),
+		.mask = BIT(5),
 	},
 	{
 		.name = "led_3",
 		.port = 0x49,
-		.mask = BIT(5),
+		.mask = BIT(4),
 	},
 	{
 		.name = "led_4",
 		.port = 0x49,
-		.mask = BIT(4),
+		.mask = BIT(3),
 	},
 	{
 		.name = "led_5",
 		.port = 0x49,
-		.mask = BIT(3),
+		.mask = BIT(2),
 	},
 	{
 		.name = "led_6",
 		.port = 0x49,
-		.mask = BIT(2),
+		.mask = BIT(1),
 	},
 	{
 		.name = "led_7",
 		.port = 0x49,
-		.mask = BIT(1),
+		.mask = BIT(0),
 	}
 };
 
-- 
1.7.10.4

[025/141] rapidio/tsi721: fix bug in MSI interrupt handling

[Steven Rostedt]

[-- Attachment #1: 0025-rapidio-tsi721-fix-bug-in-MSI-interrupt-handling.patch --]
[-- Type: text/plain, Size: 2098 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alexandre Bounine <alexandre.bounine@idt.com>

[ Upstream commit 1ccc819da6fda9bee10ab8b72e9adbb5ad3e4959 ]

Fix bug in MSI interrupt handling which causes loss of event
notifications.

Typical indication of lost MSI interrupts are stalled message and
doorbell transfers between RapidIO endpoints.  To avoid loss of MSI
interrupts all interrupts from the device must be disabled on entering
the interrupt handler routine and re-enabled when exiting it.
Re-enabling device interrupts will trigger new MSI message(s) if Tsi721
registered new events since entering interrupt handler routine.

This patch is applicable to kernel versions starting from v3.2.

Signed-off-by: Alexandre Bounine <alexandre.bounine@idt.com>
Cc: Matt Porter <mporter@kernel.crashing.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/rapidio/devices/tsi721.c |   12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 5d44252..7fca1da 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -471,6 +471,10 @@ static irqreturn_t tsi721_irqhandler(int irq, void *ptr)
 	u32 intval;
 	u32 ch_inte;
 
+	/* For MSI mode disable all device-level interrupts */
+	if (priv->flags & TSI721_USING_MSI)
+		iowrite32(0, priv->regs + TSI721_DEV_INTE);
+
 	dev_int = ioread32(priv->regs + TSI721_DEV_INT);
 	if (!dev_int)
 		return IRQ_NONE;
@@ -560,6 +564,14 @@ static irqreturn_t tsi721_irqhandler(int irq, void *ptr)
 		}
 	}
 #endif
+
+	/* For MSI mode re-enable device-level interrupts */
+	if (priv->flags & TSI721_USING_MSI) {
+		dev_int = TSI721_DEV_INT_SR2PC_CH | TSI721_DEV_INT_SRIO |
+			TSI721_DEV_INT_SMSG_CH | TSI721_DEV_INT_BDMA_CH;
+		iowrite32(dev_int, priv->regs + TSI721_DEV_INTE);
+	}
+
 	return IRQ_HANDLED;
 }
 
-- 
1.7.10.4

[026/141] mm compaction: fix of improper cache flush in migration code

[Steven Rostedt]

[-- Attachment #1: 0026-mm-compaction-fix-of-improper-cache-flush-in-migrati.patch --]
[-- Type: text/plain, Size: 2100 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>

[ Upstream commit c2cc499c5bcf9040a738f49e8051b42078205748 ]

Page 'new' during MIGRATION can't be flushed with flush_cache_page().
Using flush_cache_page(vma, addr, pfn) is justified only if the page is
already placed in process page table, and that is done right after
flush_cache_page().  But without it the arch function has no knowledge
of process PTE and does nothing.

Besides that, flush_cache_page() flushes an application cache page, but
the kernel has a different page virtual address and dirtied it.

Replace it with flush_dcache_page(new) which is the proper usage.

The old page is flushed in try_to_unmap_one() before migration.

This bug takes place in Sead3 board with M14Kc MIPS CPU without cache
aliasing (but Harvard arch - separate I and D cache) in tight memory
environment (128MB) each 1-3days on SOAK test.  It fails in cc1 during
kernel build (SIGILL, SIGBUS, SIGSEG) if CONFIG_COMPACTION is switched
ON.

Signed-off-by: Leonid Yegoshin <Leonid.Yegoshin@imgtec.com>
Cc: Leonid Yegoshin <yegoshin@mips.com>
Acked-by: Rik van Riel <riel@redhat.com>
Cc: Michal Hocko <mhocko@suse.cz>
Acked-by: Mel Gorman <mgorman@suse.de>
Cc: Ralf Baechle <ralf@linux-mips.org>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: David Miller <davem@davemloft.net>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 mm/migrate.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/mm/migrate.c b/mm/migrate.c
index 77ed2d7..a303524 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -146,7 +146,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
 	if (PageHuge(new))
 		pte = pte_mkhuge(pte);
 #endif
-	flush_cache_page(vma, addr, pte_pfn(pte));
+	flush_dcache_page(new);
 	set_pte_at(mm, addr, ptep, pte);
 
 	if (PageHuge(new)) {
-- 
1.7.10.4

[027/141] wait: fix false timeouts when using wait_event_timeout()

[Steven Rostedt]

[-- Attachment #1: 0027-wait-fix-false-timeouts-when-using-wait_event_timeou.patch --]
[-- Type: text/plain, Size: 3549 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Imre Deak <imre.deak@intel.com>

[ Upstream commit 4c663cfc523a88d97a8309b04a089c27dc57fd7e ]

Many callers of the wait_event_timeout() and
wait_event_interruptible_timeout() expect that the return value will be
positive if the specified condition becomes true before the timeout
elapses.  However, at the moment this isn't guaranteed.  If the wake-up
handler is delayed enough, the time remaining until timeout will be
calculated as 0 - and passed back as a return value - even if the
condition became true before the timeout has passed.

Fix this by returning at least 1 if the condition becomes true.  This
semantic is in line with what wait_for_condition_timeout() does; see
commit bb10ed09 ("sched: fix wait_for_completion_timeout() spurious
failure under heavy load").

Daniel said "We have 3 instances of this bug in drm/i915.  One case even
where we switch between the interruptible and not interruptible
wait_event_timeout variants, foolishly presuming they have the same
semantics.  I very much like this."

One such bug is reported at
  https://bugs.freedesktop.org/show_bug.cgi?id=64133

Signed-off-by: Imre Deak <imre.deak@intel.com>
Acked-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Acked-by: David Howells <dhowells@redhat.com>
Acked-by: Jens Axboe <axboe@kernel.dk>
Cc: "Paul E.  McKenney" <paulmck@linux.vnet.ibm.com>
Cc: Dave Jones <davej@redhat.com>
Cc: Lukas Czerner <lczerner@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/wait.h |   16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/include/linux/wait.h b/include/linux/wait.h
index 1dee81c..6c6c20e 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -233,6 +233,8 @@ do {									\
 		if (!ret)						\
 			break;						\
 	}								\
+	if (!ret && (condition))					\
+		ret = 1;						\
 	finish_wait(&wq, &__wait);					\
 } while (0)
 
@@ -249,8 +251,9 @@ do {									\
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
  *
- * The function returns 0 if the @timeout elapsed, and the remaining
- * jiffies if the condition evaluated to true before the timeout elapsed.
+ * The function returns 0 if the @timeout elapsed, or the remaining
+ * jiffies (at least 1) if the @condition evaluated to %true before
+ * the @timeout elapsed.
  */
 #define wait_event_timeout(wq, condition, timeout)			\
 ({									\
@@ -318,6 +321,8 @@ do {									\
 		ret = -ERESTARTSYS;					\
 		break;							\
 	}								\
+	if (!ret && (condition))					\
+		ret = 1;						\
 	finish_wait(&wq, &__wait);					\
 } while (0)
 
@@ -334,9 +339,10 @@ do {									\
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
  *
- * The function returns 0 if the @timeout elapsed, -ERESTARTSYS if it
- * was interrupted by a signal, and the remaining jiffies otherwise
- * if the condition evaluated to true before the timeout elapsed.
+ * Returns:
+ * 0 if the @timeout elapsed, -%ERESTARTSYS if it was interrupted by
+ * a signal, or the remaining jiffies (at least 1) if the @condition
+ * evaluated to %true before the @timeout elapsed.
  */
 #define wait_event_interruptible_timeout(wq, condition, timeout)	\
 ({									\
-- 
1.7.10.4

[028/141] nilfs2: fix issue of nilfs_set_page_dirty() for page at EOF boundary

[Steven Rostedt]

[-- Attachment #1: 0028-nilfs2-fix-issue-of-nilfs_set_page_dirty-for-page-at.patch --]
[-- Type: text/plain, Size: 5416 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>

[ Upstream commit 136e8770cd5d1fe38b3c613100dd6dc4db6d4fa6 ]

nilfs2: fix issue of nilfs_set_page_dirty for page at EOF boundary

DESCRIPTION:
 There are use-cases when NILFS2 file system (formatted with block size
lesser than 4 KB) can be remounted in RO mode because of encountering of
"broken bmap" issue.

The issue was reported by Anthony Doggett <Anthony2486@interfaces.org.uk>:
 "The machine I've been trialling nilfs on is running Debian Testing,
  Linux version 3.2.0-4-686-pae (debian-kernel@lists.debian.org) (gcc
  version 4.6.3 (Debian 4.6.3-14) ) #1 SMP Debian 3.2.35-2), but I've
  also reproduced it (identically) with Debian Unstable amd64 and Debian
  Experimental (using the 3.8-trunk kernel).  The problematic partitions
  were formatted with "mkfs.nilfs2 -b 1024 -B 8192"."

SYMPTOMS:
(1) System log contains error messages likewise:

    [63102.496756] nilfs_direct_assign: invalid pointer: 0
    [63102.496786] NILFS error (device dm-17): nilfs_bmap_assign: broken bmap (inode number=28)
    [63102.496798]
    [63102.524403] Remounting filesystem read-only

(2) The NILFS2 file system is remounted in RO mode.

REPRODUSING PATH:
(1) Create volume group with name "unencrypted" by means of vgcreate utility.
(2) Run script (prepared by Anthony Doggett <Anthony2486@interfaces.org.uk>):

----------------[BEGIN SCRIPT]--------------------

VG=unencrypted
lvcreate --size 2G --name ntest $VG
mkfs.nilfs2 -b 1024 -B 8192 /dev/mapper/$VG-ntest
mkdir /var/tmp/n
mkdir /var/tmp/n/ntest
mount /dev/mapper/$VG-ntest /var/tmp/n/ntest
mkdir /var/tmp/n/ntest/thedir
cd /var/tmp/n/ntest/thedir
sleep 2
date
darcs init
sleep 2
dmesg|tail -n 5
date
darcs whatsnew || true
date
sleep 2
dmesg|tail -n 5
----------------[END SCRIPT]--------------------

REPRODUCIBILITY: 100%

INVESTIGATION:
As it was discovered, the issue takes place during segment
construction after executing such sequence of user-space operations:

  open("_darcs/index", O_RDWR|O_CREAT|O_NOCTTY, 0666) = 7
  fstat(7, {st_mode=S_IFREG|0644, st_size=0, ...}) = 0
  ftruncate(7, 60)

The error message "NILFS error (device dm-17): nilfs_bmap_assign: broken
bmap (inode number=28)" takes place because of trying to get block
number for third block of the file with logical offset #3072 bytes.  As
it is possible to see from above output, the file has 60 bytes of the
whole size.  So, it is enough one block (1 KB in size) allocation for
the whole file.  Trying to operate with several blocks instead of one
takes place because of discovering several dirty buffers for this file
in nilfs_segctor_scan_file() method.

The root cause of this issue is in nilfs_set_page_dirty function which
is called just before writing to an mmapped page.

When nilfs_page_mkwrite function handles a page at EOF boundary, it
fills hole blocks only inside EOF through __block_page_mkwrite().

The __block_page_mkwrite() function calls set_page_dirty() after filling
hole blocks, thus nilfs_set_page_dirty function (=
a_ops->set_page_dirty) is called.  However, the current implementation
of nilfs_set_page_dirty() wrongly marks all buffers dirty even for page
at EOF boundary.

As a result, buffers outside EOF are inconsistently marked dirty and
queued for write even though they are not mapped with nilfs_get_block
function.

FIX:
This modifies nilfs_set_page_dirty() not to mark hole blocks dirty.

Thanks to Vyacheslav Dubeyko for his effort on analysis and proposals
for this issue.

Signed-off-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Reported-by: Anthony Doggett <Anthony2486@interfaces.org.uk>
Reported-by: Vyacheslav Dubeyko <slava@dubeyko.com>
Cc: Vyacheslav Dubeyko <slava@dubeyko.com>
Tested-by: Ryusuke Konishi <konishi.ryusuke@lab.ntt.co.jp>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/nilfs2/inode.c |   27 +++++++++++++++++++++++----
 1 file changed, 23 insertions(+), 4 deletions(-)

diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 6e2c3db..cbda0a4 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -202,13 +202,32 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
 
 static int nilfs_set_page_dirty(struct page *page)
 {
-	int ret = __set_page_dirty_buffers(page);
+	int ret = __set_page_dirty_nobuffers(page);
 
-	if (ret) {
+	if (page_has_buffers(page)) {
 		struct inode *inode = page->mapping->host;
-		unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
+		unsigned nr_dirty = 0;
+		struct buffer_head *bh, *head;
 
-		nilfs_set_file_dirty(inode, nr_dirty);
+		/*
+		 * This page is locked by callers, and no other thread
+		 * concurrently marks its buffers dirty since they are
+		 * only dirtied through routines in fs/buffer.c in
+		 * which call sites of mark_buffer_dirty are protected
+		 * by page lock.
+		 */
+		bh = head = page_buffers(page);
+		do {
+			/* Do not mark hole blocks dirty */
+			if (buffer_dirty(bh) || !buffer_mapped(bh))
+				continue;
+
+			set_buffer_dirty(bh);
+			nr_dirty++;
+		} while (bh = bh->b_this_page, bh != head);
+
+		if (nr_dirty)
+			nilfs_set_file_dirty(inode, nr_dirty);
 	}
 	return ret;
 }
-- 
1.7.10.4

[029/141] mm: memcg: remove incorrect VM_BUG_ON for swap cache pages in uncharge

[Steven Rostedt]

[-- Attachment #1: 0029-mm-memcg-remove-incorrect-VM_BUG_ON-for-swap-cache-p.patch --]
[-- Type: text/plain, Size: 2924 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johannes Weiner <hannes@cmpxchg.org>

[ Upstream commit 28ccddf7952c496df2a51ce5aee4f2a058a98bab ]

Commit 0c59b89c81ea ("mm: memcg: push down PageSwapCache check into
uncharge entry functions") added a VM_BUG_ON() on PageSwapCache in the
uncharge path after checking that page flag once, assuming that the
state is stable in all paths, but this is not the case and the condition
triggers in user environments.  An uncharge after the last page table
reference to the page goes away can race with reclaim adding the page to
swap cache.

Swap cache pages are usually uncharged when they are freed after
swapout, from a path that also handles swap usage accounting and memcg
lifetime management.  However, since the last page table reference is
gone and thus no references to the swap slot left, the swap slot will be
freed shortly when reclaim attempts to write the page to disk.  The
whole swap accounting is not even necessary.

So while the race condition for which this VM_BUG_ON was added is real
and actually existed all along, there are no negative effects.  Remove
the VM_BUG_ON again.

Reported-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Reported-by: Lingzhu Xiang <lxiang@redhat.com>
Signed-off-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: Hugh Dickins <hughd@google.com>
Acked-by: Michal Hocko <mhocko@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 mm/memcontrol.c |   14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a6e2f81..a2c673a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3030,8 +3030,6 @@ __mem_cgroup_uncharge_common(struct page *page, enum charge_type ctype,
 	if (mem_cgroup_disabled())
 		return NULL;
 
-	VM_BUG_ON(PageSwapCache(page));
-
 	if (PageTransHuge(page)) {
 		nr_pages <<= compound_order(page);
 		VM_BUG_ON(!PageTransHuge(page));
@@ -3127,6 +3125,18 @@ void mem_cgroup_uncharge_page(struct page *page)
 	if (page_mapped(page))
 		return;
 	VM_BUG_ON(page->mapping && !PageAnon(page));
+	/*
+	 * If the page is in swap cache, uncharge should be deferred
+	 * to the swap path, which also properly accounts swap usage
+	 * and handles memcg lifetime.
+	 *
+	 * Note that this check is not stable and reclaim may add the
+	 * page to swap cache at any time after this.  However, if the
+	 * page is not in swap cache by the time page->mapcount hits
+	 * 0, there won't be any page table references to the swap
+	 * slot, and reclaim will free it and not actually write the
+	 * page to disk.
+	 */
 	if (PageSwapCache(page))
 		return;
 	__mem_cgroup_uncharge_common(page, MEM_CGROUP_CHARGE_TYPE_ANON, false);
-- 
1.7.10.4

[030/141] drivers/block/brd.c: fix brd_lookup_page() race

[Steven Rostedt]

[-- Attachment #1: 0030-drivers-block-brd.c-fix-brd_lookup_page-race.patch --]
[-- Type: text/plain, Size: 1488 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Brian Behlendorf <behlendorf1@llnl.gov>

[ Upstream commit dfd20b2b174d3a9b258ea3b7a35ead33576587b1 ]

The index on the page must be set before it is inserted in the radix
tree.  Otherwise there is a small race which can occur during lookup
where the page can be found with the incorrect index.  This will trigger
the BUG_ON() in brd_lookup_page().

Signed-off-by: Brian Behlendorf <behlendorf1@llnl.gov>
Reported-by: Chris Wedgwood <cw@f00f.org>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/block/brd.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 531ceb3..4e8213a 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -117,13 +117,13 @@ static struct page *brd_insert_page(struct brd_device *brd, sector_t sector)
 
 	spin_lock(&brd->brd_lock);
 	idx = sector >> PAGE_SECTORS_SHIFT;
+	page->index = idx;
 	if (radix_tree_insert(&brd->brd_pages, idx, page)) {
 		__free_page(page);
 		page = radix_tree_lookup(&brd->brd_pages, idx);
 		BUG_ON(!page);
 		BUG_ON(page->index != idx);
-	} else
-		page->index = idx;
+	}
 	spin_unlock(&brd->brd_lock);
 
 	radix_tree_preload_end();
-- 
1.7.10.4

[031/141] mm/pagewalk.c: walk_page_range should avoid VM_PFNMAP areas

[Steven Rostedt]

[-- Attachment #1: 0031-mm-pagewalk.c-walk_page_range-should-avoid-VM_PFNMAP.patch --]
[-- Type: text/plain, Size: 5033 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Cliff Wickman <cpw@sgi.com>

[ Upstream commit a9ff785e4437c83d2179161e012f5bdfbd6381f0 ]

A panic can be caused by simply cat'ing /proc/<pid>/smaps while an
application has a VM_PFNMAP range.  It happened in-house when a
benchmarker was trying to decipher the memory layout of his program.

/proc/<pid>/smaps and similar walks through a user page table should not
be looking at VM_PFNMAP areas.

Certain tests in walk_page_range() (specifically split_huge_page_pmd())
assume that all the mapped PFN's are backed with page structures.  And
this is not usually true for VM_PFNMAP areas.  This can result in panics
on kernel page faults when attempting to address those page structures.

There are a half dozen callers of walk_page_range() that walk through a
task's entire page table (as N.  Horiguchi pointed out).  So rather than
change all of them, this patch changes just walk_page_range() to ignore
VM_PFNMAP areas.

The logic of hugetlb_vma() is moved back into walk_page_range(), as we
want to test any vma in the range.

VM_PFNMAP areas are used by:
- graphics memory manager   gpu/drm/drm_gem.c
- global reference unit     sgi-gru/grufile.c
- sgi special memory        char/mspec.c
- and probably several out-of-tree modules

[akpm@linux-foundation.org: remove now-unused hugetlb_vma() stub]
Signed-off-by: Cliff Wickman <cpw@sgi.com>
Reviewed-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Cc: Mel Gorman <mel@csn.ul.ie>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Dave Hansen <dave.hansen@intel.com>
Cc: David Sterba <dsterba@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@gmail.com>
Cc: "Kirill A. Shutemov" <kirill.shutemov@linux.intel.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 mm/pagewalk.c |   70 +++++++++++++++++++++++++++++----------------------------
 1 file changed, 36 insertions(+), 34 deletions(-)

diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 6c118d0..449cad6 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -127,28 +127,7 @@ static int walk_hugetlb_range(struct vm_area_struct *vma,
 	return 0;
 }
 
-static struct vm_area_struct* hugetlb_vma(unsigned long addr, struct mm_walk *walk)
-{
-	struct vm_area_struct *vma;
-
-	/* We don't need vma lookup at all. */
-	if (!walk->hugetlb_entry)
-		return NULL;
-
-	VM_BUG_ON(!rwsem_is_locked(&walk->mm->mmap_sem));
-	vma = find_vma(walk->mm, addr);
-	if (vma && vma->vm_start <= addr && is_vm_hugetlb_page(vma))
-		return vma;
-
-	return NULL;
-}
-
 #else /* CONFIG_HUGETLB_PAGE */
-static struct vm_area_struct* hugetlb_vma(unsigned long addr, struct mm_walk *walk)
-{
-	return NULL;
-}
-
 static int walk_hugetlb_range(struct vm_area_struct *vma,
 			      unsigned long addr, unsigned long end,
 			      struct mm_walk *walk)
@@ -198,30 +177,53 @@ int walk_page_range(unsigned long addr, unsigned long end,
 	if (!walk->mm)
 		return -EINVAL;
 
+	VM_BUG_ON(!rwsem_is_locked(&walk->mm->mmap_sem));
+
 	pgd = pgd_offset(walk->mm, addr);
 	do {
-		struct vm_area_struct *vma;
+		struct vm_area_struct *vma = NULL;
 
 		next = pgd_addr_end(addr, end);
 
 		/*
-		 * handle hugetlb vma individually because pagetable walk for
-		 * the hugetlb page is dependent on the architecture and
-		 * we can't handled it in the same manner as non-huge pages.
+		 * This function was not intended to be vma based.
+		 * But there are vma special cases to be handled:
+		 * - hugetlb vma's
+		 * - VM_PFNMAP vma's
 		 */
-		vma = hugetlb_vma(addr, walk);
+		vma = find_vma(walk->mm, addr);
 		if (vma) {
-			if (vma->vm_end < next)
+			/*
+			 * There are no page structures backing a VM_PFNMAP
+			 * range, so do not allow split_huge_page_pmd().
+			 */
+			if ((vma->vm_start <= addr) &&
+			    (vma->vm_flags & VM_PFNMAP)) {
 				next = vma->vm_end;
+				pgd = pgd_offset(walk->mm, next);
+				continue;
+			}
 			/*
-			 * Hugepage is very tightly coupled with vma, so
-			 * walk through hugetlb entries within a given vma.
+			 * Handle hugetlb vma individually because pagetable
+			 * walk for the hugetlb page is dependent on the
+			 * architecture and we can't handled it in the same
+			 * manner as non-huge pages.
 			 */
-			err = walk_hugetlb_range(vma, addr, next, walk);
-			if (err)
-				break;
-			pgd = pgd_offset(walk->mm, next);
-			continue;
+			if (walk->hugetlb_entry && (vma->vm_start <= addr) &&
+			    is_vm_hugetlb_page(vma)) {
+				if (vma->vm_end < next)
+					next = vma->vm_end;
+				/*
+				 * Hugepage is very tightly coupled with vma,
+				 * so walk through hugetlb entries within a
+				 * given vma.
+				 */
+				err = walk_hugetlb_range(vma, addr, next, walk);
+				if (err)
+					break;
+				pgd = pgd_offset(walk->mm, next);
+				continue;
+			}
 		}
 
 		if (pgd_none_or_clear_bad(pgd)) {
-- 
1.7.10.4

[032/141] mm/THP: use pmd_populate() to update the pmd with pgtable_t pointer

[Steven Rostedt]

[-- Attachment #1: 0032-mm-THP-use-pmd_populate-to-update-the-pmd-with-pgtab.patch --]
[-- Type: text/plain, Size: 1761 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: "Aneesh Kumar K.V" <aneesh.kumar@linux.vnet.ibm.com>

[ Upstream commit 7c3425123ddfdc5f48e7913ff59d908789712b18 ]

We should not use set_pmd_at to update pmd_t with pgtable_t pointer.
set_pmd_at is used to set pmd with huge pte entries and architectures
like ppc64, clear few flags from the pte when saving a new entry.
Without this change we observe bad pte errors like below on ppc64 with
THP enabled.

  BUG: Bad page map in process ld mm=0xc000001ee39f4780 pte:7fc3f37848000001 pmd:c000001ec0000000

Signed-off-by: Aneesh Kumar K.V <aneesh.kumar@linux.vnet.ibm.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Reviewed-by: Andrea Arcangeli <aarcange@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 mm/huge_memory.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 141dbb6..29301d4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1954,7 +1954,12 @@ static void collapse_huge_page(struct mm_struct *mm,
 		pte_unmap(pte);
 		spin_lock(&mm->page_table_lock);
 		BUG_ON(!pmd_none(*pmd));
-		set_pmd_at(mm, address, pmd, _pmd);
+		/*
+		 * We can only use set_pmd_at when establishing
+		 * hugepmds and never for establishing regular pmds that
+		 * points to regular pagetables. Use pmd_populate for that
+		 */
+		pmd_populate(mm, pmd, pmd_pgtable(_pmd));
 		spin_unlock(&mm->page_table_lock);
 		anon_vma_unlock(vma->anon_vma);
 		goto out;
-- 
1.7.10.4

[033/141] xfs: kill suid/sgid through the truncate path.

[Steven Rostedt]

[-- Attachment #1: 0033-xfs-kill-suid-sgid-through-the-truncate-path.patch --]
[-- Type: text/plain, Size: 2766 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Dave Chinner <dchinner@redhat.com>

[ Upstream commit 2962f5a5dcc56f69cbf62121a7be67cc15d6940b ]

XFS has failed to kill suid/sgid bits correctly when truncating
files of non-zero size since commit c4ed4243 ("xfs: split
xfs_setattr") introduced in the 3.1 kernel. Fix it.

Fix it.

cc: stable kernel <stable@vger.kernel.org>
Signed-off-by: Dave Chinner <dchinner@redhat.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
Signed-off-by: Ben Myers <bpm@sgi.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>

(cherry picked from commit 56c19e89b38618390addfc743d822f99519055c6)
---
 fs/xfs/xfs_iops.c |   47 ++++++++++++++++++++++++++++++++---------------
 1 file changed, 32 insertions(+), 15 deletions(-)

diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 4e00cf0..53c2145 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -454,6 +454,28 @@ xfs_vn_getattr(
 	return 0;
 }
 
+static void
+xfs_setattr_mode(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	struct iattr		*iattr)
+{
+	struct inode	*inode = VFS_I(ip);
+	umode_t		mode = iattr->ia_mode;
+
+	ASSERT(tp);
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
+	if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
+		mode &= ~S_ISGID;
+
+	ip->i_d.di_mode &= S_IFMT;
+	ip->i_d.di_mode |= mode & ~S_IFMT;
+
+	inode->i_mode &= S_IFMT;
+	inode->i_mode |= mode & ~S_IFMT;
+}
+
 int
 xfs_setattr_nonsize(
 	struct xfs_inode	*ip,
@@ -605,18 +627,8 @@ xfs_setattr_nonsize(
 	/*
 	 * Change file access modes.
 	 */
-	if (mask & ATTR_MODE) {
-		umode_t mode = iattr->ia_mode;
-
-		if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
-			mode &= ~S_ISGID;
-
-		ip->i_d.di_mode &= S_IFMT;
-		ip->i_d.di_mode |= mode & ~S_IFMT;
-
-		inode->i_mode &= S_IFMT;
-		inode->i_mode |= mode & ~S_IFMT;
-	}
+	if (mask & ATTR_MODE)
+		xfs_setattr_mode(tp, ip, iattr);
 
 	/*
 	 * Change file access or modified times.
@@ -713,9 +725,8 @@ xfs_setattr_size(
 		return XFS_ERROR(error);
 
 	ASSERT(S_ISREG(ip->i_d.di_mode));
-	ASSERT((mask & (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
-			ATTR_MTIME_SET|ATTR_KILL_SUID|ATTR_KILL_SGID|
-			ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
+	ASSERT((mask & (ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
+			ATTR_MTIME_SET|ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
 
 	if (!(flags & XFS_ATTR_NOLOCK)) {
 		lock_flags |= XFS_IOLOCK_EXCL;
@@ -856,6 +867,12 @@ xfs_setattr_size(
 		xfs_iflags_set(ip, XFS_ITRUNCATED);
 	}
 
+	/*
+	 * Change file access modes.
+	 */
+	if (mask & ATTR_MODE)
+		xfs_setattr_mode(tp, ip, iattr);
+
 	if (mask & ATTR_CTIME) {
 		inode->i_ctime = iattr->ia_ctime;
 		ip->i_d.di_ctime.t_sec = iattr->ia_ctime.tv_sec;
-- 
1.7.10.4

[034/141] SUNRPC: Prevent an rpc_task wakeup race

[Steven Rostedt]

[-- Attachment #1: 0034-SUNRPC-Prevent-an-rpc_task-wakeup-race.patch --]
[-- Type: text/plain, Size: 1722 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <Trond.Myklebust@netapp.com>

[ Upstream commit a3c3cac5d31879cd9ae2de7874dc6544ca704aec ]

The lockless RPC_IS_QUEUED() test in __rpc_execute means that we need to
be careful about ordering the calls to rpc_test_and_set_running(task) and
rpc_clear_queued(task). If we get the order wrong, then we may end up
testing the RPC_TASK_RUNNING flag after __rpc_execute() has looped
and changed the state of the rpc_task.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/sunrpc/sched.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index cd09810..0e09708 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -305,11 +305,17 @@ EXPORT_SYMBOL_GPL(__rpc_wait_for_completion_task);
  * Note: If the task is ASYNC, and is being made runnable after sitting on an
  * rpc_wait_queue, this must be called with the queue spinlock held to protect
  * the wait queue operation.
+ * Note the ordering of rpc_test_and_set_running() and rpc_clear_queued(),
+ * which is needed to ensure that __rpc_execute() doesn't loop (due to the
+ * lockless RPC_IS_QUEUED() test) before we've had a chance to test
+ * the RPC_TASK_RUNNING flag.
  */
 static void rpc_make_runnable(struct rpc_task *task)
 {
+	bool need_wakeup = !rpc_test_and_set_running(task);
+
 	rpc_clear_queued(task);
-	if (rpc_test_and_set_running(task))
+	if (!need_wakeup)
 		return;
 	if (RPC_IS_ASYNC(task)) {
 		INIT_WORK(&task->u.tk_work, rpc_async_schedule);
-- 
1.7.10.4

[035/141] ASoC: cs42l52: fix default value for MASTERA_VOL.

[Steven Rostedt]

[-- Attachment #1: 0035-ASoC-cs42l52-fix-default-value-for-MASTERA_VOL.patch --]
[-- Type: text/plain, Size: 1345 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Nicolas Schichan <nschichan@freebox.fr>

[ Upstream commit 04d245b7899c020559402841d2f70ddd740a7704 ]

The default register value for MASTERA_VOL is 0x00, the same as
MASTERB_VOL.

Signed-off-by: Nicolas Schichan <nschichan@freebox.fr>
Acked-by: Brian Austin <brian.austin@cirrus.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 sound/soc/codecs/cs42l52.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index d8cfcc7..d34aa42 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -87,7 +87,7 @@ static const struct reg_default cs42l52_reg_defaults[] = {
 	{ CS42L52_BEEP_VOL, 0x00 },	/* r1D Beep Volume off Time */
 	{ CS42L52_BEEP_TONE_CTL, 0x00 },	/* r1E Beep Tone Cfg. */
 	{ CS42L52_TONE_CTL, 0x00 },	/* r1F Tone Ctl */
-	{ CS42L52_MASTERA_VOL, 0x88 },	/* r20 Master A Volume */
+	{ CS42L52_MASTERA_VOL, 0x00 },	/* r20 Master A Volume */
 	{ CS42L52_MASTERB_VOL, 0x00 },	/* r21 Master B Volume */
 	{ CS42L52_HPA_VOL, 0x00 },	/* r22 Headphone A Volume */
 	{ CS42L52_HPB_VOL, 0x00 },	/* r23 Headphone B Volume */
-- 
1.7.10.4

[036/141] drm/radeon: fix typo in cu_per_sh on verde

[Steven Rostedt]

[-- Attachment #1: 0036-drm-radeon-fix-typo-in-cu_per_sh-on-verde.patch --]
[-- Type: text/plain, Size: 1064 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 468ef1a58c9268ac9709350bf95eaf1c22a69f29 ]

Should be 5 rather than 2.

Noticed by sroland and glisse on IRC.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/radeon/si.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 7d0026b..2fa541c 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1556,7 +1556,7 @@ static void si_gpu_init(struct radeon_device *rdev)
 	default:
 		rdev->config.si.max_shader_engines = 1;
 		rdev->config.si.max_tile_pipes = 4;
-		rdev->config.si.max_cu_per_sh = 2;
+		rdev->config.si.max_cu_per_sh = 5;
 		rdev->config.si.max_sh_per_se = 2;
 		rdev->config.si.max_backends_per_se = 4;
 		rdev->config.si.max_texture_channel_caches = 4;
-- 
1.7.10.4

[037/141] drm/radeon: fix card_posted check for newer asics

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0037-drm-radeon-fix-card_posted-check-for-newer-asics.patch --]
[-- Type: text/plain, Size: 2254 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 09fb8bd1a63b0f9f15e655c4fe8d047e5d2bf67a ]

Newer asics have variable numbers of crtcs.  Use that
rather than the asic family to determine which crtcs
to check.  This avoids checking non-existent crtcs or
missing crtcs on certain asics.

Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/radeon/radeon_device.c |   19 +++++++++----------
 1 file changed, 9 insertions(+), 10 deletions(-)

diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 7a3daeb..32cea73 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -431,18 +431,17 @@ bool radeon_card_posted(struct radeon_device *rdev)
 		return false;
 
 	/* first check CRTCs */
-	if (ASIC_IS_DCE41(rdev)) {
+	if (ASIC_IS_DCE4(rdev)) {
 		reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
 			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
-		if (reg & EVERGREEN_CRTC_MASTER_EN)
-			return true;
-	} else if (ASIC_IS_DCE4(rdev)) {
-		reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
+			if (rdev->num_crtc >= 4) {
+				reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
+					RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
+			}
+			if (rdev->num_crtc >= 6) {
+				reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
+					RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
+			}
 		if (reg & EVERGREEN_CRTC_MASTER_EN)
 			return true;
 	} else if (ASIC_IS_AVIVO(rdev)) {
-- 
1.7.10.4

[038/141] cifs: fix potential buffer overrun when composing a new options string

[Steven Rostedt]

[-- Attachment #1: 0038-cifs-fix-potential-buffer-overrun-when-composing-a-n.patch --]
[-- Type: text/plain, Size: 1476 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jeff Layton <jlayton@redhat.com>

[ Upstream commit 166faf21bd14bc5c5295a44874bf7f3930c30b20 ]

Consider the case where we have a very short ip= string in the original
mount options, and when we chase a referral we end up with a very long
IPv6 address. Be sure to allow for that possibility when estimating the
size of the string to allocate.

Cc: <stable@vger.kernel.org>
Signed-off-by: Jeff Layton <jlayton@redhat.com>
Signed-off-by: Steve French <sfrench@us.ibm.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/cifs/cifs_dfs_ref.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index ce5cbd7..52527dd 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/vfs.h>
 #include <linux/fs.h>
+#include <linux/inet.h>
 #include "cifsglob.h"
 #include "cifsproto.h"
 #include "cifsfs.h"
@@ -150,7 +151,8 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
 	 * assuming that we have 'unc=' and 'ip=' in
 	 * the original sb_mountdata
 	 */
-	md_len = strlen(sb_mountdata) + rc + strlen(ref->node_name) + 12;
+	md_len = strlen(sb_mountdata) + rc + strlen(ref->node_name) + 12 +
+			INET6_ADDRSTRLEN;
 	mountdata = kzalloc(md_len+1, GFP_KERNEL);
 	if (mountdata == NULL) {
 		rc = -ENOMEM;
-- 
1.7.10.4

[039/141] ata_piix: add PCI IDs for Intel BayTail

[Steven Rostedt]

[-- Attachment #1: 0039-ata_piix-add-PCI-IDs-for-Intel-BayTail.patch --]
[-- Type: text/plain, Size: 2166 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: "Chew, Chiau Ee" <chiau.ee.chew@intel.com>

[ Upstream commit fca8c90d519dedd4f4b19901d005c243f7f0bf2e ]

Adds IDE-mode SATA Device IDs for the Intel BayTrail platform.

Signed-off-by: Chew, Chiau Ee <chiau.ee.chew@intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy@linux.intel.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/ata/ata_piix.c |   15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 7bfe093..80c44c30 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -151,6 +151,7 @@ enum piix_controller_ids {
 	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
 	ich8_sata_snb,
 	ich8_2port_sata_snb,
+	ich8_2port_sata_byt,
 };
 
 struct piix_map_db {
@@ -340,6 +341,9 @@ static const struct pci_device_id piix_pci_tbl[] = {
 	{ 0x8086, 0x9c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (DH89xxCC) */
 	{ 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (BayTrail) */
+	{ 0x8086, 0x0F20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
+	{ 0x8086, 0x0F21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
 	{ }	/* terminate list */
 };
 
@@ -504,6 +508,7 @@ static const struct piix_map_db *piix_map_db_table[] = {
 	[tolapai_sata]		= &tolapai_map_db,
 	[ich8_sata_snb]		= &ich8_map_db,
 	[ich8_2port_sata_snb]	= &ich8_2port_map_db,
+	[ich8_2port_sata_byt]	= &ich8_2port_map_db,
 };
 
 static struct ata_port_info piix_port_info[] = {
@@ -654,6 +659,16 @@ static struct ata_port_info piix_port_info[] = {
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
+
+	[ich8_2port_sata_byt] =
+	{
+		.flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR | PIIX_FLAG_PIO16,
+		.pio_mask       = ATA_PIO4,
+		.mwdma_mask     = ATA_MWDMA2,
+		.udma_mask      = ATA_UDMA6,
+		.port_ops       = &piix_sata_ops,
+	},
+
 };
 
 static struct pci_bits piix_enable_bits[] = {
-- 
1.7.10.4

[040/141] libata: make ata_exec_internal_sg honor DMADIR

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0040-libata-make-ata_exec_internal_sg-honor-DMADIR.patch --]
[-- Type: text/plain, Size: 4038 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Vincent Pelletier <plr.vincent@gmail.com>

[ Upstream commit e771451c0a831d96a7c14b0ca8a8ec671d98567b ]

libata honors DMADIR for regular commands, but not for internal commands
used (among other) during device initialisation.

This makes SATA-host-to-PATA-device bridges based on Silicon Image SiL3611
(such as "Abit Serillel 2") end up disabled when used with an ATAPI device
after a few tries.

Log output of the bridge being hot-plugged with an ATAPI drive:

  [ 9631.212901] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen
  [ 9631.212913] ata1: irq_stat 0x00000040, connection status changed
  [ 9631.212923] ata1: SError: { CommWake 10B8B DevExch }
  [ 9631.212939] ata1: hard resetting link
  [ 9632.104962] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
  [ 9632.106393] ata1.00: ATAPI: PIONEER DVD-RW  DVR-115, 1.06, max UDMA/33
  [ 9632.106407] ata1.00: applying bridge limits
  [ 9632.108151] ata1.00: configured for UDMA/33
  [ 9637.105303] ata1.00: qc timeout (cmd 0xa0)
  [ 9637.105324] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
  [ 9637.105335] ata1: hard resetting link
  [ 9638.044599] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
  [ 9638.047878] ata1.00: configured for UDMA/33
  [ 9643.044933] ata1.00: qc timeout (cmd 0xa0)
  [ 9643.044953] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
  [ 9643.044963] ata1: limiting SATA link speed to 1.5 Gbps
  [ 9643.044971] ata1.00: limiting speed to UDMA/33:PIO3
  [ 9643.044979] ata1: hard resetting link
  [ 9643.984225] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
  [ 9643.987471] ata1.00: configured for UDMA/33
  [ 9648.984591] ata1.00: qc timeout (cmd 0xa0)
  [ 9648.984612] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
  [ 9648.984619] ata1.00: disabled
  [ 9649.000593] ata1: hard resetting link
  [ 9649.939902] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
  [ 9649.955864] ata1: EH complete

With this patch, the drive enumerates correctly when libata is loaded with
atapi_dmadir=1:

  [ 9891.810863] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen
  [ 9891.810874] ata1: irq_stat 0x00000040, connection status changed
  [ 9891.810884] ata1: SError: { CommWake 10B8B DevExch }
  [ 9891.810900] ata1: hard resetting link
  [ 9892.762105] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
  [ 9892.763544] ata1.00: ATAPI: PIONEER DVD-RW  DVR-115, 1.06, max UDMA/33, DMADIR
  [ 9892.763558] ata1.00: applying bridge limits
  [ 9892.765393] ata1.00: configured for UDMA/33
  [ 9892.786063] ata1: EH complete
  [ 9892.792062] scsi 0:0:0:0: CD-ROM            PIONEER  DVD-RW  DVR-115  1.06 PQ: 0 ANSI: 5
  [ 9892.798455] sr2: scsi3-mmc drive: 12x/12x writer dvd-ram cd/rw xa/form2 cdda tray
  [ 9892.798837] sr 0:0:0:0: Attached scsi CD-ROM sr2
  [ 9892.799109] sr 0:0:0:0: Attached scsi generic sg6 type 5

Based on a patch by Csaba Halász <csaba.halasz@gmail.com> on linux-ide:
http://marc.info/?l=linux-ide&m=136121147832295&w=2

tj: minor formatting changes.

Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/ata/libata-core.c |    6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 3e351e7..b76e6ea 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1601,6 +1601,12 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
 	qc->tf = *tf;
 	if (cdb)
 		memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
+
+	/* some SATA bridges need us to indicate data xfer direction */
+	if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) &&
+	    dma_dir == DMA_FROM_DEVICE)
+		qc->tf.feature |= ATAPI_DMADIR;
+
 	qc->flags |= ATA_QCFLAG_RESULT_TF;
 	qc->dma_dir = dma_dir;
 	if (dma_dir != DMA_NONE) {
-- 
1.7.10.4

[041/141] m68k/mac: Fix unexpected interrupt with CONFIG_EARLY_PRINTK

[Steven Rostedt]

[-- Attachment #1: 0041-m68k-mac-Fix-unexpected-interrupt-with-CONFIG_EARLY_.patch --]
[-- Type: text/plain, Size: 3602 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Finn Thain <fthain@telegraphics.com.au>

[ Upstream commit df66834a43c461de2565c45d815288ba1c0def37 ]

The present code does not wait for the SCC to finish resetting itself
before trying to initialise the device. The result is that the SCC
interrupt sources become enabled (if they weren't already). This leads to
an early boot crash (unexpected interrupt) given CONFIG_EARLY_PRINTK. Fix
this by adding a delay. A successful reset disables the interrupt sources.

Also, after the reset for channel A setup, the SCC then gets a second
reset for channel B setup which leaves channel A uninitialised again. Fix
this by performing the reset only once.

Signed-off-by: Finn Thain <fthain@telegraphics.com.au>
Cc: stable@vger.kernel.org
Signed-off-by: Geert Uytterhoeven <geert@linux-m68k.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/m68k/kernel/head.S |   29 +++++++++++++++++++----------
 1 file changed, 19 insertions(+), 10 deletions(-)

diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index d197e7f..ac85f16 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -2752,11 +2752,9 @@ func_return	get_new_page
 #ifdef CONFIG_MAC
 
 L(scc_initable_mac):
-	.byte	9,12		/* Reset */
 	.byte	4,0x44		/* x16, 1 stopbit, no parity */
 	.byte	3,0xc0		/* receiver: 8 bpc */
 	.byte	5,0xe2		/* transmitter: 8 bpc, assert dtr/rts */
-	.byte	9,0		/* no interrupts */
 	.byte	10,0		/* NRZ */
 	.byte	11,0x50		/* use baud rate generator */
 	.byte	12,1,13,0	/* 38400 baud */
@@ -2899,6 +2897,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	is_not_mac(L(serial_init_not_mac))
 
 #ifdef SERIAL_DEBUG
+
 /* You may define either or both of these. */
 #define MAC_USE_SCC_A /* Modem port */
 #define MAC_USE_SCC_B /* Printer port */
@@ -2908,9 +2907,21 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 #define mac_scc_cha_b_data_offset	0x4
 #define mac_scc_cha_a_data_offset	0x6
 
+#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
+	movel	%pc@(L(mac_sccbase)),%a0
+	/* Reset SCC device */
+	moveb	#9,%a0@(mac_scc_cha_a_ctrl_offset)
+	moveb	#0xc0,%a0@(mac_scc_cha_a_ctrl_offset)
+	/* Wait for 5 PCLK cycles, which is about 68 CPU cycles */
+	/* 5 / 3.6864 MHz = approx. 1.36 us = 68 / 50 MHz */
+	movel	#35,%d0
+5:
+	subq	#1,%d0
+	jne	5b
+#endif
+
 #ifdef MAC_USE_SCC_A
 	/* Initialize channel A */
-	movel	%pc@(L(mac_sccbase)),%a0
 	lea	%pc@(L(scc_initable_mac)),%a1
 5:	moveb	%a1@+,%d0
 	jmi	6f
@@ -2922,9 +2933,6 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 
 #ifdef MAC_USE_SCC_B
 	/* Initialize channel B */
-#ifndef MAC_USE_SCC_A	/* Load mac_sccbase only if needed */
-	movel	%pc@(L(mac_sccbase)),%a0
-#endif	/* MAC_USE_SCC_A */
 	lea	%pc@(L(scc_initable_mac)),%a1
 7:	moveb	%a1@+,%d0
 	jmi	8f
@@ -2933,6 +2941,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	jra	7b
 8:
 #endif	/* MAC_USE_SCC_B */
+
 #endif	/* SERIAL_DEBUG */
 
 	jra	L(serial_init_done)
@@ -3006,17 +3015,17 @@ func_start	serial_putc,%d0/%d1/%a0/%a1
 
 #ifdef SERIAL_DEBUG
 
-#ifdef MAC_USE_SCC_A
+#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
 	movel	%pc@(L(mac_sccbase)),%a1
+#endif
+
+#ifdef MAC_USE_SCC_A
 3:	btst	#2,%a1@(mac_scc_cha_a_ctrl_offset)
 	jeq	3b
 	moveb	%d0,%a1@(mac_scc_cha_a_data_offset)
 #endif	/* MAC_USE_SCC_A */
 
 #ifdef MAC_USE_SCC_B
-#ifndef MAC_USE_SCC_A	/* Load mac_sccbase only if needed */
-	movel	%pc@(L(mac_sccbase)),%a1
-#endif	/* MAC_USE_SCC_A */
 4:	btst	#2,%a1@(mac_scc_cha_b_ctrl_offset)
 	jeq	4b
 	moveb	%d0,%a1@(mac_scc_cha_b_data_offset)
-- 
1.7.10.4

[042/141] iscsi-target: fix heap buffer overflow on error

[Steven Rostedt]

[-- Attachment #1: 0042-iscsi-target-fix-heap-buffer-overflow-on-error.patch --]
[-- Type: text/plain, Size: 2415 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kees Cook <keescook@chromium.org>

[ Upstream commit cea4dcfdad926a27a18e188720efe0f2c9403456 ]

If a key was larger than 64 bytes, as checked by iscsi_check_key(), the
error response packet, generated by iscsi_add_notunderstood_response(),
would still attempt to copy the entire key into the packet, overflowing
the structure on the heap.

Remote preauthentication kernel memory corruption was possible if a
target was configured and listening on the network.

CVE-2013-2850

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/target/iscsi/iscsi_target_parameters.c |    8 +++-----
 drivers/target/iscsi/iscsi_target_parameters.h |    4 +++-
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index 0c4760f..3282c8f 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -713,9 +713,9 @@ static int iscsi_add_notunderstood_response(
 	}
 	INIT_LIST_HEAD(&extra_response->er_list);
 
-	strncpy(extra_response->key, key, strlen(key) + 1);
-	strncpy(extra_response->value, NOTUNDERSTOOD,
-			strlen(NOTUNDERSTOOD) + 1);
+	strlcpy(extra_response->key, key, sizeof(extra_response->key));
+	strlcpy(extra_response->value, NOTUNDERSTOOD,
+		sizeof(extra_response->value));
 
 	list_add_tail(&extra_response->er_list,
 			&param_list->extra_response_list);
@@ -1554,8 +1554,6 @@ int iscsi_decode_text_input(
 
 		if (phase & PHASE_SECURITY) {
 			if (iscsi_check_for_auth_key(key) > 0) {
-				char *tmpptr = key + strlen(key);
-				*tmpptr = '=';
 				kfree(tmpbuf);
 				return 1;
 			}
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index 6a37fd6..83eed65 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -1,8 +1,10 @@
 #ifndef ISCSI_PARAMETERS_H
 #define ISCSI_PARAMETERS_H
 
+#include <scsi/iscsi_proto.h>
+
 struct iscsi_extra_response {
-	char key[64];
+	char key[KEY_MAXLEN];
 	char value[32];
 	struct list_head er_list;
 } ____cacheline_aligned;
-- 
1.7.10.4

[043/141] ib_srpt: Call target_sess_cmd_list_set_waiting during shutdown_session

[Steven Rostedt]

[-- Attachment #1: 0043-ib_srpt-Call-target_sess_cmd_list_set_waiting-during.patch --]
[-- Type: text/plain, Size: 3076 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Nicholas Bellinger <nab@linux-iscsi.org>

[ Upstream commit 1d19f7800d643b270b28d0a969c5eca455d54397 ]

Given that srpt_release_channel_work() calls target_wait_for_sess_cmds()
to allow outstanding se_cmd_t->cmd_kref a change to complete, the call
to perform target_sess_cmd_list_set_waiting() needs to happen in
srpt_shutdown_session()

Also, this patch adds an explicit call to srpt_shutdown_session() within
srpt_drain_channel() so that target_sess_cmd_list_set_waiting() will be
called in the cases where TFO->shutdown_session() is not triggered
directly by TCM.

Cc: Joern Engel <joern@logfs.org>
Cc: Roland Dreier <roland@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/infiniband/ulp/srpt/ib_srpt.c |   32 ++++++++++++++++++++++++--------
 drivers/infiniband/ulp/srpt/ib_srpt.h |    1 +
 2 files changed, 25 insertions(+), 8 deletions(-)

diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 9e1449f..1f269f1 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2276,6 +2276,27 @@ static void srpt_close_ch(struct srpt_rdma_ch *ch)
 }
 
 /**
+ * srpt_shutdown_session() - Whether or not a session may be shut down.
+ */
+static int srpt_shutdown_session(struct se_session *se_sess)
+{
+	struct srpt_rdma_ch *ch = se_sess->fabric_sess_ptr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ch->spinlock, flags);
+	if (ch->in_shutdown) {
+		spin_unlock_irqrestore(&ch->spinlock, flags);
+		return true;
+	}
+
+	ch->in_shutdown = true;
+	target_sess_cmd_list_set_waiting(se_sess);
+	spin_unlock_irqrestore(&ch->spinlock, flags);
+
+	return true;
+}
+
+/**
  * srpt_drain_channel() - Drain a channel by resetting the IB queue pair.
  * @cm_id: Pointer to the CM ID of the channel to be drained.
  *
@@ -2313,6 +2334,9 @@ static void srpt_drain_channel(struct ib_cm_id *cm_id)
 	spin_unlock_irq(&sdev->spinlock);
 
 	if (do_reset) {
+		if (ch->sess)
+			srpt_shutdown_session(ch->sess);
+
 		ret = srpt_ch_qp_err(ch);
 		if (ret < 0)
 			printk(KERN_ERR "Setting queue pair in error state"
@@ -3493,14 +3517,6 @@ static void srpt_release_cmd(struct se_cmd *se_cmd)
 }
 
 /**
- * srpt_shutdown_session() - Whether or not a session may be shut down.
- */
-static int srpt_shutdown_session(struct se_session *se_sess)
-{
-	return true;
-}
-
-/**
  * srpt_close_session() - Forcibly close a session.
  *
  * Callback function invoked by the TCM core to clean up sessions associated
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h
index 61e52b8..01b7791 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.h
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.h
@@ -326,6 +326,7 @@ struct srpt_rdma_ch {
 	u8			sess_name[36];
 	struct work_struct	release_work;
 	struct completion	*release_done;
+	bool			in_shutdown;
 };
 
 /**
-- 
1.7.10.4

[044/141] NFSv4: Fix a thinko in nfs4_try_open_cached

[Steven Rostedt]

[-- Attachment #1: 0044-NFSv4-Fix-a-thinko-in-nfs4_try_open_cached.patch --]
[-- Type: text/plain, Size: 1097 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Trond Myklebust <Trond.Myklebust@netapp.com>

[ Upstream commit f448badd34700ae728a32ba024249626d49c10e1 ]

We need to pass the full open mode flags to nfs_may_open() when doing
a delegated open.

Signed-off-by: Trond Myklebust <Trond.Myklebust@netapp.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/nfs/nfs4proc.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4d135ef..24affff 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1074,7 +1074,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
 	struct nfs4_state *state = opendata->state;
 	struct nfs_inode *nfsi = NFS_I(state->inode);
 	struct nfs_delegation *delegation;
-	int open_mode = opendata->o_arg.open_flags & (O_EXCL|O_TRUNC);
+	int open_mode = opendata->o_arg.open_flags;
 	fmode_t fmode = opendata->o_arg.fmode;
 	nfs4_stateid stateid;
 	int ret = -EAGAIN;
-- 
1.7.10.4

[045/141] regulator: palmas: Fix "enable_reg" to point to the correct reg for SMPS10

[Steven Rostedt]

[-- Attachment #1: 0045-regulator-palmas-Fix-enable_reg-to-point-to-the-corr.patch --]
[-- Type: text/plain, Size: 1319 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kishon Vijay Abraham I <kishon@ti.com>

[ Upstream commit f232168df0c7e7414b70ac5d8fed83086d441c0b ]

regulator_enable_regmap() uses enable_reg to enable the regulator.
But enable_reg for smps10 points to SMPS10_STATUS which is a
read-only register. Fixed the same by having enable_reg
set to SMPS10_CTRL.

Signed-off-by: Kishon Vijay Abraham I <kishon@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/regulator/palmas-regulator.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 46c7e88..f9e8a2b 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -685,7 +685,7 @@ static __devinit int palmas_probe(struct platform_device *pdev)
 			pmic->desc[id].vsel_mask = SMPS10_VSEL;
 			pmic->desc[id].enable_reg =
 					PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
-							PALMAS_SMPS10_STATUS);
+							PALMAS_SMPS10_CTRL);
 			pmic->desc[id].enable_mask = SMPS10_BOOST_EN;
 			pmic->desc[id].min_uV = 3750000;
 			pmic->desc[id].uV_step = 1250000;
-- 
1.7.10.4

[046/141] reiserfs: fix deadlock with nfs racing on create/lookup

[Steven Rostedt]

[-- Attachment #1: 0046-reiserfs-fix-deadlock-with-nfs-racing-on-create-look.patch --]
[-- Type: text/plain, Size: 2387 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jeff Mahoney <jeffm@suse.com>

[ Upstream commit a1457c0ce976bad1356b9b0437f2a5c3ab8a9cfc ]

Reiserfs is currently able to be deadlocked by having two NFS clients
where one has removed and recreated a file and another is accessing the
file with an open file handle.

If one client deletes and recreates a file with timing such that the
recreated file obtains the same [dirid, objectid] pair as the original
file while another client accesses the file via file handle, the create
and lookup can race and deadlock if the lookup manages to create the
in-memory inode first.

The create thread, in insert_inode_locked4, will hold the write lock
while waiting on the other inode to be unlocked. The lookup thread,
anywhere in the iget path, will release and reacquire the write lock while
it schedules. If it needs to reacquire the lock while the create thread
has it, it will never be able to make forward progress because it needs
to reacquire the lock before ultimately unlocking the inode.

This patch drops the write lock across the insert_inode_locked4 call so
that the ordering of inode_wait -> write lock is retained. Since this
would have been the case before the BKL push-down, this is safe.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/reiserfs/inode.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 567c10c..582777f 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1810,11 +1810,16 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 				  TYPE_STAT_DATA, SD_SIZE, MAX_US_INT);
 	memcpy(INODE_PKEY(inode), &(ih.ih_key), KEY_SIZE);
 	args.dirid = le32_to_cpu(ih.ih_key.k_dir_id);
-	if (insert_inode_locked4(inode, args.objectid,
-			     reiserfs_find_actor, &args) < 0) {
+
+	reiserfs_write_unlock(inode->i_sb);
+	err = insert_inode_locked4(inode, args.objectid,
+			     reiserfs_find_actor, &args);
+	reiserfs_write_lock(inode->i_sb);
+	if (err) {
 		err = -EINVAL;
 		goto out_bad_inode;
 	}
+
 	if (old_format_only(sb))
 		/* not a perfect generation count, as object ids can be reused, but
 		 ** this is as good as reiserfs can do right now.
-- 
1.7.10.4

[047/141] reiserfs: fix problems with chowning setuid file w/ xattrs

[Steven Rostedt]

[-- Attachment #1: 0047-reiserfs-fix-problems-with-chowning-setuid-file-w-xa.patch --]
[-- Type: text/plain, Size: 2369 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jeff Mahoney <jeffm@suse.com>

[ Upstream commit 4a8570112b76a63ad21cfcbe2783f98f7fd5ba1b ]

reiserfs_chown_xattrs() takes the iattr struct passed into ->setattr
and uses it to iterate over all the attrs associated with a file to change
ownership of xattrs (and transfer quota associated with the xattr files).

When the setuid bit is cleared during chown, ATTR_MODE and iattr->ia_mode
are passed to all the xattrs as well. This means that the xattr directory
will have S_IFREG added to its mode bits.

This has been prevented in practice by a missing IS_PRIVATE check
in reiserfs_acl_chmod, which caused a double-lock to occur while holding
the write lock. Since the file system was completely locked up, the
writeout of the corrupted mode never happened.

This patch temporarily clears everything but ATTR_UID|ATTR_GID for the
calls to reiserfs_setattr and adds the missing IS_PRIVATE check.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/reiserfs/xattr.c     |   14 +++++++++++++-
 fs/reiserfs/xattr_acl.c |    3 +++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index d319963..78f823d 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -318,7 +318,19 @@ static int delete_one_xattr(struct dentry *dentry, void *data)
 static int chown_one_xattr(struct dentry *dentry, void *data)
 {
 	struct iattr *attrs = data;
-	return reiserfs_setattr(dentry, attrs);
+	int ia_valid = attrs->ia_valid;
+	int err;
+
+	/*
+	 * We only want the ownership bits. Otherwise, we'll do
+	 * things like change a directory to a regular file if
+	 * ATTR_MODE is set.
+	 */
+	attrs->ia_valid &= (ATTR_UID|ATTR_GID);
+	err = reiserfs_setattr(dentry, attrs);
+	attrs->ia_valid = ia_valid;
+
+	return err;
 }
 
 /* No i_mutex, but the inode is unconnected. */
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 44474f9..84fe30c 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -429,6 +429,9 @@ int reiserfs_acl_chmod(struct inode *inode)
 	int depth;
 	int error;
 
+	if (IS_PRIVATE(inode))
+		return 0;
+
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
 
-- 
1.7.10.4

[048/141] reiserfs: fix spurious multiple-fill in reiserfs_readdir_dentry

[Steven Rostedt]

[-- Attachment #1: 0048-reiserfs-fix-spurious-multiple-fill-in-reiserfs_read.patch --]
[-- Type: text/plain, Size: 1816 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jeff Mahoney <jeffm@jeffreymahoney.com>

[ Upstream commit 0bdc7acba56a7ca4232f15f37b16f7ec079385ab ]

After sleeping for filldir(), we check to see if the file system has
changed and research. The next_pos pointer is updated but its value
isn't pushed into the key used for the search itself. As a result,
the search returns the same item that the last cycle of the loop did
and filldir() is called multiple times with the same data.

The end result is that the buffer can contain the same name multiple
times. This can be returned to userspace or used internally in the
xattr code where it can manifest with the following warning:

jdm-20004 reiserfs_delete_xattrs: Couldn't delete all xattrs (-2)

reiserfs_for_each_xattr uses reiserfs_readdir_dentry to iterate over
the xattr names and ends up trying to unlink the same name twice. The
second attempt fails with -ENOENT and the error is returned. At some
point I'll need to add support into reiserfsck to remove the orphaned
directories left behind when this occurs.

The fix is to push the value into the key before researching.

Signed-off-by: Jeff Mahoney <jeffm@suse.com>
Signed-off-by: Jan Kara <jack@suse.cz>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/reiserfs/dir.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 66c53b6..6c2d136 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -204,6 +204,8 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
 				next_pos = deh_offset(deh) + 1;
 
 				if (item_moved(&tmp_ih, &path_to_entry)) {
+					set_cpu_key_k_offset(&pos_key,
+							     next_pos);
 					goto research;
 				}
 			}	/* for */
-- 
1.7.10.4

[049/141] jfs: fix a couple races

[Steven Rostedt]

[-- Attachment #1: 0049-jfs-fix-a-couple-races.patch --]
[-- Type: text/plain, Size: 1958 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Dave Kleikamp <dave.kleikamp@oracle.com>

[ Upstream commit 73aaa22d5ffb2630456bac2f9a4ed9b81d0d7271 ]

This patch fixes races uncovered by xfstests testcase 068.

One race is the result of jfs_sync() trying to write a sync point to the
journal after it has been frozen (or possibly in the process). Since
freezing sync's the journal, there is no need to write a sync point so
we simply want to return.

The second involves jfs_write_inode() being called on a deleted inode.
It calls jfs_flush_journal which is held up by the jfs_commit thread
doing the final iput on the same deleted inode, which itself is
waiting for the I_SYNC flag to be cleared. jfs_write_inode need not
do anything when i_nlink is zero, which is the easy fix.

Reported-by: Michael L. Semon <mlsemon35@gmail.com>
Signed-off-by: Dave Kleikamp <dave.kleikamp@oracle.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/jfs/inode.c      |    2 +-
 fs/jfs/jfs_logmgr.c |    3 ++-
 2 files changed, 3 insertions(+), 2 deletions(-)

diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 4692bf3..7e54dfd 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -125,7 +125,7 @@ int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
 	int wait = wbc->sync_mode == WB_SYNC_ALL;
 
-	if (test_cflag(COMMIT_Nolink, inode))
+	if (inode->i_nlink == 0)
 		return 0;
 	/*
 	 * If COMMIT_DIRTY is not set, the inode isn't really dirty.
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 2eb952c..cbe48ea 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1058,7 +1058,8 @@ static int lmLogSync(struct jfs_log * log, int hard_sync)
  */
 void jfs_syncpt(struct jfs_log *log, int hard_sync)
 {	LOG_LOCK(log);
-	lmLogSync(log, hard_sync);
+	if (!test_bit(log_QUIESCE, &log->flag))
+		lmLogSync(log, hard_sync);
 	LOG_UNLOCK(log);
 }
 
-- 
1.7.10.4

[050/141] xen-netback: remove skb in xen_netbk_alloc_page

[Steven Rostedt]

[-- Attachment #1: 0050-xen-netback-remove-skb-in-xen_netbk_alloc_page.patch --]
[-- Type: text/plain, Size: 1605 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit 27f852282ab9a028f57da96d05c26f38c424a315 ]

This variable is never used.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netback/netback.c |    5 ++---
 1 file changed, 2 insertions(+), 3 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 6aa059e..0ed1b26 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -913,7 +913,6 @@ static int netbk_count_requests(struct xenvif *vif,
 }
 
 static struct page *xen_netbk_alloc_page(struct xen_netbk *netbk,
-					 struct sk_buff *skb,
 					 u16 pending_idx)
 {
 	struct page *page;
@@ -947,7 +946,7 @@ static struct gnttab_copy *xen_netbk_get_requests(struct xen_netbk *netbk,
 
 		index = pending_index(netbk->pending_cons++);
 		pending_idx = netbk->pending_ring[index];
-		page = xen_netbk_alloc_page(netbk, skb, pending_idx);
+		page = xen_netbk_alloc_page(netbk, pending_idx);
 		if (!page)
 			goto err;
 
@@ -1352,7 +1351,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		}
 
 		/* XXX could copy straight to head */
-		page = xen_netbk_alloc_page(netbk, skb, pending_idx);
+		page = xen_netbk_alloc_page(netbk, pending_idx);
 		if (!page) {
 			kfree_skb(skb);
 			netbk_tx_err(vif, &txreq, idx);
-- 
1.7.10.4

[051/141] iommu/amd: Re-enable IOMMU event log interrupt after handling.

[Steven Rostedt]

[-- Attachment #1: 0051-iommu-amd-Re-enable-IOMMU-event-log-interrupt-after-.patch --]
[-- Type: text/plain, Size: 1776 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>

[ Upstream commit 925fe08bce38d1ff052fe2209b9e2b8d5fbb7f98 ]

Current driver does not clear the IOMMU event log interrupt bit
in the IOMMU status register after processing an interrupt.
This causes the IOMMU hardware to generate event log interrupt only once.
This has been observed in both IOMMU v1 and V2 hardware.
This patch clears the bit by writing 1 to bit 1 of the IOMMU
status register (MMIO Offset 2020h)

Signed-off-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/iommu/amd_iommu.c       |    3 +++
 drivers/iommu/amd_iommu_types.h |    1 +
 2 files changed, 4 insertions(+)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c698cf6..195ec2e 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -601,6 +601,9 @@ static void iommu_poll_events(struct amd_iommu *iommu)
 	u32 head, tail;
 	unsigned long flags;
 
+	/* enable event interrupts again */
+	writel(MMIO_STATUS_EVT_INT_MASK, iommu->mmio_base + MMIO_STATUS_OFFSET);
+
 	spin_lock_irqsave(&iommu->lock, flags);
 
 	head = readl(iommu->mmio_base + MMIO_EVT_HEAD_OFFSET);
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index d0dab86..c6d556c 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -99,6 +99,7 @@
 #define PASID_MASK		0x000fffff
 
 /* MMIO status bits */
+#define MMIO_STATUS_EVT_INT_MASK	(1 << 1)
 #define MMIO_STATUS_COM_WAIT_INT_MASK	(1 << 2)
 #define MMIO_STATUS_PPR_INT_MASK	(1 << 6)
 
-- 
1.7.10.4

[052/141] iommu/amd: Workaround for ERBT1312

[Steven Rostedt]

[-- Attachment #1: 0052-iommu-amd-Workaround-for-ERBT1312.patch --]
[-- Type: text/plain, Size: 2718 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Joerg Roedel <joro@8bytes.org>

[ Upstream commit d3263bc29706e42f74d8800807c2dedf320d77f1 ]

Work around an IOMMU  hardware bug where clearing the
EVT_INT or PPR_INT bit in the status register may race with
the hardware trying to set it again. When not handled the
bit might not be cleared and we lose all future event or ppr
interrupts.

Reported-by: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Joerg Roedel <joro@8bytes.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/iommu/amd_iommu.c |   34 ++++++++++++++++++++++++++--------
 1 file changed, 26 insertions(+), 8 deletions(-)

diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index 195ec2e..e5c773d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -598,14 +598,23 @@ retry:
 
 static void iommu_poll_events(struct amd_iommu *iommu)
 {
-	u32 head, tail;
+	u32 head, tail, status;
 	unsigned long flags;
 
-	/* enable event interrupts again */
-	writel(MMIO_STATUS_EVT_INT_MASK, iommu->mmio_base + MMIO_STATUS_OFFSET);
-
 	spin_lock_irqsave(&iommu->lock, flags);
 
+	/* enable event interrupts again */
+	do {
+		/*
+		 * Workaround for Erratum ERBT1312
+		 * Clearing the EVT_INT bit may race in the hardware, so read
+		 * it again and make sure it was really cleared
+		 */
+		status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
+		writel(MMIO_STATUS_EVT_INT_MASK,
+		       iommu->mmio_base + MMIO_STATUS_OFFSET);
+	} while (status & MMIO_STATUS_EVT_INT_MASK);
+
 	head = readl(iommu->mmio_base + MMIO_EVT_HEAD_OFFSET);
 	tail = readl(iommu->mmio_base + MMIO_EVT_TAIL_OFFSET);
 
@@ -642,16 +651,25 @@ static void iommu_handle_ppr_entry(struct amd_iommu *iommu, u64 *raw)
 static void iommu_poll_ppr_log(struct amd_iommu *iommu)
 {
 	unsigned long flags;
-	u32 head, tail;
+	u32 head, tail, status;
 
 	if (iommu->ppr_log == NULL)
 		return;
 
-	/* enable ppr interrupts again */
-	writel(MMIO_STATUS_PPR_INT_MASK, iommu->mmio_base + MMIO_STATUS_OFFSET);
-
 	spin_lock_irqsave(&iommu->lock, flags);
 
+	/* enable ppr interrupts again */
+	do {
+		/*
+		 * Workaround for Erratum ERBT1312
+		 * Clearing the PPR_INT bit may race in the hardware, so read
+		 * it again and make sure it was really cleared
+		 */
+		status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
+		writel(MMIO_STATUS_PPR_INT_MASK,
+		       iommu->mmio_base + MMIO_STATUS_OFFSET);
+	} while (status & MMIO_STATUS_PPR_INT_MASK);
+
 	head = readl(iommu->mmio_base + MMIO_PPR_HEAD_OFFSET);
 	tail = readl(iommu->mmio_base + MMIO_PPR_TAIL_OFFSET);
 
-- 
1.7.10.4

[053/141] ACPI / video: Add "Asus UL30A" to ACPI video detect blacklist

[Steven Rostedt]

[-- Attachment #1: 0053-ACPI-video-Add-Asus-UL30A-to-ACPI-video-detect-black.patch --]
[-- Type: text/plain, Size: 1313 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Bastian Triller <bastian.triller@gmail.com>

[ Upstream commit c8f6d8351ba8c89d5cd4c562552ec7ec29274e31 ]

Like on UL30VT, the ACPI video driver can't control backlight correctly on
Asus UL30A.  Vendor driver (asus-laptop) can work.  This patch is to
add "Asus UL30A" to ACPI video detect blacklist in order to use
asus-laptop for video control on the "Asus UL30A" rather than ACPI
video driver.

Signed-off-by: Bastian Triller <bastian.triller@gmail.com>
Cc: All <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/acpi/video_detect.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 4ac2593..abcae69 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -164,6 +164,14 @@ static struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"),
 		},
 	},
+	{
+	.callback = video_detect_force_vendor,
+	.ident = "Asus UL30A",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
+		},
+	},
 	{ },
 };
 
-- 
1.7.10.4

[054/141] mac80211: close AP_VLAN interfaces before unregistering all

[Steven Rostedt]

[-- Attachment #1: 0054-mac80211-close-AP_VLAN-interfaces-before-unregisteri.patch --]
[-- Type: text/plain, Size: 1863 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit c8aa22db0112f640ac6631347f850879c621840b ]

Since Eric's commit efe117ab8 ("Speedup ieee80211_remove_interfaces")
there's a bug in mac80211 when it unregisters with AP_VLAN interfaces
up. If the AP_VLAN interface was registered after the AP it belongs
to (which is the typical case) and then we get into this code path,
unregister_netdevice_many() will crash because it isn't prepared to
deal with interfaces being closed in the middle of it. Exactly this
happens though, because we iterate the list, find the AP master this
AP_VLAN belongs to and dev_close() the dependent VLANs. After this,
unregister_netdevice_many() won't pick up the fact that the AP_VLAN
is already down and will do it again, causing a crash.

Cc: stable@vger.kernel.org [2.6.33+]
Cc: Eric Dumazet <eric.dumazet@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/mac80211/iface.c |    9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index c93d395..9217a94 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1521,6 +1521,15 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 
 	ASSERT_RTNL();
 
+	/*
+	 * Close all AP_VLAN interfaces first, as otherwise they
+	 * might be closed while the AP interface they belong to
+	 * is closed, causing unregister_netdevice_many() to crash.
+	 */
+	list_for_each_entry(sdata, &local->interfaces, list)
+		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+			dev_close(sdata->dev);
+
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
 		list_del(&sdata->list);
-- 
1.7.10.4

[055/141] iwlwifi: dvm: fix zero LQ CMD sending avoidance

[Steven Rostedt]

[-- Attachment #1: 0055-iwlwifi-dvm-fix-zero-LQ-CMD-sending-avoidance.patch --]
[-- Type: text/plain, Size: 1473 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

[ Upstream commit a87783699b23395c46bbeeb5d28f6db24897bf26 ]

In 63b77bf489881747c5118476918cc8c29378ee63

	iwlwifi: dvm: don't send zeroed LQ cmd

I tried to avoid to send zeroed LQ cmd, but I made a (very)
stupid mistake in the memcmp.
Since this patch has been ported to stable, the fix should
go to stable too.

This fixes https://bugzilla.kernel.org/show_bug.cgi?id=58341

Cc: stable@vger.kernel.org
Reported-by: Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/wireless/iwlwifi/dvm/sta.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c
index efe8a4f..12e06f3 100644
--- a/drivers/net/wireless/iwlwifi/dvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/dvm/sta.c
@@ -746,7 +746,7 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 					memcpy(&lq, priv->stations[i].lq,
 					       sizeof(struct iwl_link_quality_cmd));
 
-				if (!memcmp(&lq, &zero_lq, sizeof(lq)))
+				if (memcmp(&lq, &zero_lq, sizeof(lq)))
 					send_lq = true;
 			}
 			spin_unlock_bh(&priv->sta_lock);
-- 
1.7.10.4

[056/141] cfg80211: check wdev->netdev in connection work

[Steven Rostedt]

[-- Attachment #1: 0056-cfg80211-check-wdev-netdev-in-connection-work.patch --]
[-- Type: text/plain, Size: 1119 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johannes Berg <johannes.berg@intel.com>

[ Upstream commit c815797663b72e3ac1736f1886538152bc48e4af ]

If a P2P-Device is present and another virtual interface triggers
the connection work, the system crash because it tries to check
if the P2P-Device's netdev (which doesn't exist) is up. Skip any
wdevs that have no netdev to fix this.

Cc: stable@vger.kernel.org
Reported-by: YanBo <dreamfly281@gmail.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/wireless/sme.c |    3 +++
 1 file changed, 3 insertions(+)

diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 6f39cb8..1015221 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -222,6 +222,9 @@ void cfg80211_conn_work(struct work_struct *work)
 	mutex_lock(&rdev->devlist_mtx);
 
 	list_for_each_entry(wdev, &rdev->wdev_list, list) {
+		if (!wdev->netdev)
+			continue;
+
 		wdev_lock(wdev);
 		if (!netif_running(wdev->netdev)) {
 			wdev_unlock(wdev);
-- 
1.7.10.4

[057/141] ath9k: use correct OTP register offsets for AR9550

[Steven Rostedt]

[-- Attachment #1: 0057-ath9k-use-correct-OTP-register-offsets-for-AR9550.patch --]
[-- Type: text/plain, Size: 3765 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Gabor Juhos <juhosg@openwrt.org>

[ Upstream commit add295a4afbdf5852d004c754c552d692b0fcac8 ]

Accessing the OTP memory on AR9950 causes a data bus
like this:

  Data bus error, epc == 801f7774, ra == 801f7774
  Oops[#1]:
  CPU: 0 PID: 1 Comm: swapper Not tainted 3.10.0-rc3 #592
  task: 87c28000 ti: 87c22000 task.ti: 87c22000
  $ 0   : 00000000 00000061 deadc0de 00000000
  $ 4   : b8115f18 00015f18 00000007 00000004
  $ 8   : 00000001 7c7c3c7c 7c7c7c7c 7c7c7c7c
  $12   : 7c7c3c7c 80320a68 00000000 7c7c7c3c
  $16   : 87cd8010 00015f18 00000007 00000000
  $20   : 00000064 00000004 87c23c7c 8035210c
  $24   : 00000000 801f3674
  $28   : 87c22000 87c23b48 00000001 801f7774
  Hi    : 00000000
  Lo    : 00000064
  epc   : 801f7774 ath9k_hw_wait+0x58/0xb0
      Not tainted
  ra    : 801f7774 ath9k_hw_wait+0x58/0xb0
  Status: 1000cc03 KERNEL EXL IE
  Cause : 4080801c
  PrId  : 00019750 (MIPS 74Kc)
  Modules linked in:
  Process swapper (pid: 1, threadinfo=87c22000, task=87c28000, ts=00000000)
  Stack : 0000000f 00000061 00002710 8006240c 00000001 87cd8010 87c23bb0 87cd8010
          00000000 00000004 00000003 80210c7c 000000b3 67fa8000 0000032a 000006fe
          000003e8 00000002 00000028 87c23bf0 000003ff 80210d24 803e5630 80210e28
          00000000 00000007 87cd8010 00007044 00000004 00000061 000003ff 000001ff
          87c26000 87cd8010 00000220 87cd8bb8 80210000 8020fcf4 87c22000 87c23c08
          ...
  Call Trace:
  [<801f7774>] ath9k_hw_wait+0x58/0xb0
  [<80210c7c>] ar9300_otp_read_word+0x80/0xd4
  [<80210d24>] ar9300_read_otp+0x54/0xb0
  [<8020fcf4>] ar9300_check_eeprom_header+0x1c/0x40
  [<80210fe4>] ath9k_hw_ar9300_fill_eeprom+0x118/0x39c
  [<80206650>] ath9k_hw_eeprom_init+0x74/0xb4
  [<801f96d0>] ath9k_hw_init+0x7ec/0x96c
  [<801e65ec>] ath9k_init_device+0x340/0x758
  [<801f35d0>] ath_ahb_probe+0x21c/0x2c0
  [<801c041c>] driver_probe_device+0xc0/0x1e4
  [<801c05ac>] __driver_attach+0x6c/0xa4
  [<801bea08>] bus_for_each_dev+0x64/0xa8
  [<801bfa40>] bus_add_driver+0xcc/0x24c
  [<801c0954>] driver_register+0xbc/0x17c
  [<803f8fc0>] ath9k_init+0x5c/0x88
  [<800608fc>] do_one_initcall+0xec/0x1a0
  [<803e6a68>] kernel_init_freeable+0x13c/0x200
  [<80309cdc>] kernel_init+0x1c/0xe4
  [<80062450>] ret_from_kernel_thread+0x10/0x18

On the AR9550, the OTP registers are located at
the same address as on the AR9340. Use the correct
values to avoid the error.

Cc: stable@vger.kernel.org  # 3.6+
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/wireless/ath/ath9k/ar9003_eeprom.h |    9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index 3a1ff55..51dd475 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -68,13 +68,16 @@
 #define AR9300_BASE_ADDR 0x3ff
 #define AR9300_BASE_ADDR_512 0x1ff
 
-#define AR9300_OTP_BASE			0x14000
-#define AR9300_OTP_STATUS		0x15f18
+#define AR9300_OTP_BASE \
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30000 : 0x14000)
+#define AR9300_OTP_STATUS \
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30018 : 0x15f18)
 #define AR9300_OTP_STATUS_TYPE		0x7
 #define AR9300_OTP_STATUS_VALID		0x4
 #define AR9300_OTP_STATUS_ACCESS_BUSY	0x2
 #define AR9300_OTP_STATUS_SM_BUSY	0x1
-#define AR9300_OTP_READ_DATA		0x15f1c
+#define AR9300_OTP_READ_DATA \
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3001c : 0x15f1c)
 
 enum targetPowerHTRates {
 	HT_TARGET_RATE_0_8_16,
-- 
1.7.10.4

[058/141] tg3: Add read dma workaround for 5720

[Steven Rostedt]

[-- Attachment #1: 0058-tg3-Add-read-dma-workaround-for-5720.patch --]
[-- Type: text/plain, Size: 3922 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Nithin Sujir <nsujir@broadcom.com>

[ Upstream commit 9bc297ea0622bb2a6b3abfa2fa84f0a3b86ef8c8 ]

Commit 091f0ea30074bc43f9250961b3247af713024bc6 "tg3: Add New 5719 Read
DMA workaround" added a workaround for TX DMA stall on the 5719. This
workaround needs to be applied to the 5720 as well.

Cc: stable@vger.kernel.org
Reported-by: Roland Dreier <roland@purestorage.com>
Tested-by: Roland Dreier <roland@purestorage.com>
Signed-off-by: Nithin Nayak Sujir <nsujir@broadcom.com>
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/ethernet/broadcom/tg3.c |   21 +++++++++++++++------
 drivers/net/ethernet/broadcom/tg3.h |    5 +++--
 2 files changed, 18 insertions(+), 8 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index 1e7f1a8..06d075c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -8699,6 +8699,14 @@ static void tg3_rss_write_indir_tbl(struct tg3 *tp)
 	}
 }
 
+static inline u32 tg3_lso_rd_dma_workaround_bit(struct tg3 *tp)
+{
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
+		return TG3_LSO_RD_DMA_TX_LENGTH_WA_5719;
+	else
+		return TG3_LSO_RD_DMA_TX_LENGTH_WA_5720;
+}
+
 /* tp->lock is held. */
 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 {
@@ -9350,16 +9358,17 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	tw32_f(RDMAC_MODE, rdmac_mode);
 	udelay(40);
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
+	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
 		for (i = 0; i < TG3_NUM_RDMA_CHANNELS; i++) {
 			if (tr32(TG3_RDMA_LENGTH + (i << 2)) > TG3_MAX_MTU(tp))
 				break;
 		}
 		if (i < TG3_NUM_RDMA_CHANNELS) {
 			val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
-			val |= TG3_LSO_RD_DMA_TX_LENGTH_WA;
+			val |= tg3_lso_rd_dma_workaround_bit(tp);
 			tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
-			tg3_flag_set(tp, 5719_RDMA_BUG);
+			tg3_flag_set(tp, 5719_5720_RDMA_BUG);
 		}
 	}
 
@@ -9715,15 +9724,15 @@ static void tg3_periodic_fetch_stats(struct tg3 *tp)
 	TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
 	TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
 	TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
-	if (unlikely(tg3_flag(tp, 5719_RDMA_BUG) &&
+	if (unlikely(tg3_flag(tp, 5719_5720_RDMA_BUG) &&
 		     (sp->tx_ucast_packets.low + sp->tx_mcast_packets.low +
 		      sp->tx_bcast_packets.low) > TG3_NUM_RDMA_CHANNELS)) {
 		u32 val;
 
 		val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
-		val &= ~TG3_LSO_RD_DMA_TX_LENGTH_WA;
+		val &= ~tg3_lso_rd_dma_workaround_bit(tp);
 		tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
-		tg3_flag_clear(tp, 5719_RDMA_BUG);
+		tg3_flag_clear(tp, 5719_5720_RDMA_BUG);
 	}
 
 	TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 0f8e583..786ae2d 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -1379,7 +1379,8 @@
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL	0x00004910
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K	 0x00030000
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K	 0x000c0000
-#define TG3_LSO_RD_DMA_TX_LENGTH_WA	 0x02000000
+#define TG3_LSO_RD_DMA_TX_LENGTH_WA_5719	 0x02000000
+#define TG3_LSO_RD_DMA_TX_LENGTH_WA_5720	 0x00200000
 /* 0x4914 --> 0x4be0 unused */
 
 #define TG3_NUM_RDMA_CHANNELS		4
@@ -2966,7 +2967,7 @@ enum TG3_FLAGS {
 	TG3_FLAG_L1PLLPD_EN,
 	TG3_FLAG_APE_HAS_NCSI,
 	TG3_FLAG_4K_FIFO_LIMIT,
-	TG3_FLAG_5719_RDMA_BUG,
+	TG3_FLAG_5719_5720_RDMA_BUG,
 	TG3_FLAG_RESET_TASK_PENDING,
 	TG3_FLAG_5705_PLUS,
 	TG3_FLAG_IS_5788,
-- 
1.7.10.4

[059/141] target: Re-instate sess_wait_list for target_wait_for_sess_cmds

[Steven Rostedt]

[-- Attachment #1: 0059-target-Re-instate-sess_wait_list-for-target_wait_for.patch --]
[-- Type: text/plain, Size: 3792 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Nicholas Bellinger <nab@linux-iscsi.org>

[ Upstream commit 9b31a328e344e62e7cc98ae574edcb7b674719bb ]

Switch back to pre commit 1c7b13fe652 list splicing logic for active I/O
shutdown with tcm_qla2xxx + ib_srpt fabrics.

The original commit was done under the incorrect assumption that it's safe to
walk se_sess->sess_cmd_list unprotected in target_wait_for_sess_cmds() after
sess->sess_tearing_down = 1 has been set by target_sess_cmd_list_set_waiting()
during session shutdown.

So instead of adding sess->sess_cmd_lock protection around sess->sess_cmd_list
during target_wait_for_sess_cmds(), switch back to sess->sess_wait_list to
allow wait_for_completion() + TFO->release_cmd() to occur without having to
walk ->sess_cmd_list after the list_splice.

Also add a check to exit if target_sess_cmd_list_set_waiting() has already
been called, and add a WARN_ON to check for any fabric bug where new se_cmds
are added to sess->sess_cmd_list after sess->sess_tearing_down = 1 has already
been set.

Cc: Joern Engel <joern@logfs.org>
Cc: Roland Dreier <roland@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/target/target_core_transport.c |   18 ++++++++++++++----
 include/target/target_core_base.h      |    1 +
 2 files changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 140bfb3..725ab56 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -232,6 +232,7 @@ struct se_session *transport_init_session(void)
 	INIT_LIST_HEAD(&se_sess->sess_list);
 	INIT_LIST_HEAD(&se_sess->sess_acl_list);
 	INIT_LIST_HEAD(&se_sess->sess_cmd_list);
+	INIT_LIST_HEAD(&se_sess->sess_wait_list);
 	spin_lock_init(&se_sess->sess_cmd_lock);
 	kref_init(&se_sess->sess_kref);
 
@@ -2469,11 +2470,14 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
 	unsigned long flags;
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
-
-	WARN_ON(se_sess->sess_tearing_down);
+	if (se_sess->sess_tearing_down) {
+		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+		return;
+	}
 	se_sess->sess_tearing_down = 1;
+	list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
 
-	list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list)
+	list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list)
 		se_cmd->cmd_wait_set = 1;
 
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
@@ -2490,9 +2494,10 @@ void target_wait_for_sess_cmds(
 {
 	struct se_cmd *se_cmd, *tmp_cmd;
 	bool rc = false;
+	unsigned long flags;
 
 	list_for_each_entry_safe(se_cmd, tmp_cmd,
-				&se_sess->sess_cmd_list, se_cmd_list) {
+				&se_sess->sess_wait_list, se_cmd_list) {
 		list_del(&se_cmd->se_cmd_list);
 
 		pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:"
@@ -2520,6 +2525,11 @@ void target_wait_for_sess_cmds(
 
 		se_cmd->se_tfo->release_cmd(se_cmd);
 	}
+
+	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
+	WARN_ON(!list_empty(&se_sess->sess_cmd_list));
+	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+
 }
 EXPORT_SYMBOL(target_wait_for_sess_cmds);
 
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5be8937..71f7662 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -613,6 +613,7 @@ struct se_session {
 	struct list_head	sess_list;
 	struct list_head	sess_acl_list;
 	struct list_head	sess_cmd_list;
+	struct list_head	sess_wait_list;
 	spinlock_t		sess_cmd_lock;
 	struct kref		sess_kref;
 };
-- 
1.7.10.4

[060/141] xen-netback: coalesce slots in TX path and fix regressions

[Steven Rostedt]

[-- Attachment #1: 0060-xen-netback-coalesce-slots-in-TX-path-and-fix-regres.patch --]
[-- Type: text/plain, Size: 18027 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit 2810e5b9a7731ca5fce22bfbe12c96e16ac44b6f ]

This patch tries to coalesce tx requests when constructing grant copy
structures. It enables netback to deal with situation when frontend's
MAX_SKB_FRAGS is larger than backend's MAX_SKB_FRAGS.

With the help of coalescing, this patch tries to address two regressions
avoid reopening the security hole in XSA-39.

Regression 1. The reduction of the number of supported ring entries (slots)
per packet (from 18 to 17). This regression has been around for some time but
remains unnoticed until XSA-39 security fix. This is fixed by coalescing
slots.

Regression 2. The XSA-39 security fix turning "too many frags" errors from
just dropping the packet to a fatal error and disabling the VIF. This is fixed
by coalescing slots (handling 18 slots when backend's MAX_SKB_FRAGS is 17)
which rules out false positive (using 18 slots is legit) and dropping packets
using 19 to `max_skb_slots` slots.

To avoid reopening security hole in XSA-39, frontend sending packet using more
than max_skb_slots is considered malicious.

The behavior of netback for packet is thus:

    1-18            slots: valid
   19-max_skb_slots slots: drop and respond with an error
   max_skb_slots+   slots: fatal error

max_skb_slots is configurable by admin, default value is 20.

Also change variable name from "frags" to "slots" in netbk_count_requests.

Please note that RX path still has dependency on MAX_SKB_FRAGS. This will be
fixed with separate patch.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netback/netback.c |  273 ++++++++++++++++++++++++++++++-------
 include/xen/interface/io/netif.h  |   18 +++
 2 files changed, 241 insertions(+), 50 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 0ed1b26..d5a4e74 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -46,11 +46,25 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 
+/*
+ * This is the maximum slots a skb can have. If a guest sends a skb
+ * which exceeds this limit it is considered malicious.
+ */
+#define MAX_SKB_SLOTS_DEFAULT 20
+static unsigned int max_skb_slots = MAX_SKB_SLOTS_DEFAULT;
+module_param(max_skb_slots, uint, 0444);
+
+typedef unsigned int pending_ring_idx_t;
+#define INVALID_PENDING_RING_IDX (~0U)
+
 struct pending_tx_info {
-	struct xen_netif_tx_request req;
+	struct xen_netif_tx_request req; /* coalesced tx request */
 	struct xenvif *vif;
+	pending_ring_idx_t head; /* head != INVALID_PENDING_RING_IDX
+				  * if it is head of one or more tx
+				  * reqs
+				  */
 };
-typedef unsigned int pending_ring_idx_t;
 
 struct netbk_rx_meta {
 	int id;
@@ -101,7 +115,11 @@ struct xen_netbk {
 	atomic_t netfront_count;
 
 	struct pending_tx_info pending_tx_info[MAX_PENDING_REQS];
-	struct gnttab_copy tx_copy_ops[MAX_PENDING_REQS];
+	/* Coalescing tx requests before copying makes number of grant
+	 * copy ops greater or equal to number of slots required. In
+	 * worst case a tx request consumes 2 gnttab_copy.
+	 */
+	struct gnttab_copy tx_copy_ops[2*MAX_PENDING_REQS];
 
 	u16 pending_ring[MAX_PENDING_REQS];
 
@@ -117,6 +135,16 @@ struct xen_netbk {
 static struct xen_netbk *xen_netbk;
 static int xen_netbk_group_nr;
 
+/*
+ * If head != INVALID_PENDING_RING_IDX, it means this tx request is head of
+ * one or more merged tx requests, otherwise it is the continuation of
+ * previous tx request.
+ */
+static inline int pending_tx_is_head(struct xen_netbk *netbk, RING_IDX idx)
+{
+	return netbk->pending_tx_info[idx].head != INVALID_PENDING_RING_IDX;
+}
+
 void xen_netbk_add_xenvif(struct xenvif *vif)
 {
 	int i;
@@ -249,6 +277,7 @@ static int max_required_rx_slots(struct xenvif *vif)
 {
 	int max = DIV_ROUND_UP(vif->dev->mtu, PAGE_SIZE);
 
+	/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
 	if (vif->can_sg || vif->gso || vif->gso_prefix)
 		max += MAX_SKB_FRAGS + 1; /* extra_info + frags */
 
@@ -626,6 +655,7 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
 		__skb_queue_tail(&rxq, skb);
 
 		/* Filled the batch queue? */
+		/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
 		if (count + MAX_SKB_FRAGS >= XEN_NETIF_RX_RING_SIZE)
 			break;
 	}
@@ -869,47 +899,78 @@ static void netbk_fatal_tx_err(struct xenvif *vif)
 
 static int netbk_count_requests(struct xenvif *vif,
 				struct xen_netif_tx_request *first,
+				RING_IDX first_idx,
 				struct xen_netif_tx_request *txp,
 				int work_to_do)
 {
 	RING_IDX cons = vif->tx.req_cons;
-	int frags = 0;
+	int slots = 0;
+	int drop_err = 0;
 
 	if (!(first->flags & XEN_NETTXF_more_data))
 		return 0;
 
 	do {
-		if (frags >= work_to_do) {
-			netdev_err(vif->dev, "Need more frags\n");
+		if (slots >= work_to_do) {
+			netdev_err(vif->dev,
+				   "Asked for %d slots but exceeds this limit\n",
+				   work_to_do);
 			netbk_fatal_tx_err(vif);
 			return -ENODATA;
 		}
 
-		if (unlikely(frags >= MAX_SKB_FRAGS)) {
-			netdev_err(vif->dev, "Too many frags\n");
+		/* This guest is really using too many slots and
+		 * considered malicious.
+		 */
+		if (unlikely(slots >= max_skb_slots)) {
+			netdev_err(vif->dev,
+				   "Malicious frontend using %d slots, threshold %u\n",
+				   slots, max_skb_slots);
 			netbk_fatal_tx_err(vif);
 			return -E2BIG;
 		}
 
-		memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + frags),
+		/* Xen network protocol had implicit dependency on
+		 * MAX_SKB_FRAGS. XEN_NETIF_NR_SLOTS_MIN is set to the
+		 * historical MAX_SKB_FRAGS value 18 to honor the same
+		 * behavior as before. Any packet using more than 18
+		 * slots but less than max_skb_slots slots is dropped
+		 */
+		if (!drop_err && slots >= XEN_NETIF_NR_SLOTS_MIN) {
+			if (net_ratelimit())
+				netdev_dbg(vif->dev,
+					   "Too many slots (%d) exceeding limit (%d), dropping packet\n",
+					   slots, XEN_NETIF_NR_SLOTS_MIN);
+			drop_err = -E2BIG;
+		}
+
+		memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + slots),
 		       sizeof(*txp));
 		if (txp->size > first->size) {
-			netdev_err(vif->dev, "Frag is bigger than frame.\n");
+			netdev_err(vif->dev,
+				   "Invalid tx request, slot size %u > remaining size %u\n",
+				   txp->size, first->size);
 			netbk_fatal_tx_err(vif);
 			return -EIO;
 		}
 
 		first->size -= txp->size;
-		frags++;
+		slots++;
 
 		if (unlikely((txp->offset + txp->size) > PAGE_SIZE)) {
-			netdev_err(vif->dev, "txp->offset: %x, size: %u\n",
+			netdev_err(vif->dev, "Cross page boundary, txp->offset: %x, size: %u\n",
 				 txp->offset, txp->size);
 			netbk_fatal_tx_err(vif);
 			return -EINVAL;
 		}
 	} while ((txp++)->flags & XEN_NETTXF_more_data);
-	return frags;
+
+	if (drop_err) {
+		netbk_tx_err(vif, first, first_idx + slots);
+		return drop_err;
+	}
+
+	return slots;
 }
 
 static struct page *xen_netbk_alloc_page(struct xen_netbk *netbk,
@@ -933,48 +994,114 @@ static struct gnttab_copy *xen_netbk_get_requests(struct xen_netbk *netbk,
 	struct skb_shared_info *shinfo = skb_shinfo(skb);
 	skb_frag_t *frags = shinfo->frags;
 	u16 pending_idx = *((u16 *)skb->data);
-	int i, start;
+	u16 head_idx = 0;
+	int slot, start;
+	struct page *page;
+	pending_ring_idx_t index, start_idx = 0;
+	uint16_t dst_offset;
+	unsigned int nr_slots;
+	struct pending_tx_info *first = NULL;
+
+	/* At this point shinfo->nr_frags is in fact the number of
+	 * slots, which can be as large as XEN_NETIF_NR_SLOTS_MIN.
+	 */
+	nr_slots = shinfo->nr_frags;
 
 	/* Skip first skb fragment if it is on same page as header fragment. */
 	start = (frag_get_pending_idx(&shinfo->frags[0]) == pending_idx);
 
-	for (i = start; i < shinfo->nr_frags; i++, txp++) {
-		struct page *page;
-		pending_ring_idx_t index;
+	/* Coalesce tx requests, at this point the packet passed in
+	 * should be <= 64K. Any packets larger than 64K have been
+	 * handled in netbk_count_requests().
+	 */
+	for (shinfo->nr_frags = slot = start; slot < nr_slots;
+	     shinfo->nr_frags++) {
 		struct pending_tx_info *pending_tx_info =
 			netbk->pending_tx_info;
 
-		index = pending_index(netbk->pending_cons++);
-		pending_idx = netbk->pending_ring[index];
-		page = xen_netbk_alloc_page(netbk, pending_idx);
+		page = alloc_page(GFP_KERNEL|__GFP_COLD);
 		if (!page)
 			goto err;
 
-		gop->source.u.ref = txp->gref;
-		gop->source.domid = vif->domid;
-		gop->source.offset = txp->offset;
-
-		gop->dest.u.gmfn = virt_to_mfn(page_address(page));
-		gop->dest.domid = DOMID_SELF;
-		gop->dest.offset = txp->offset;
-
-		gop->len = txp->size;
-		gop->flags = GNTCOPY_source_gref;
+		dst_offset = 0;
+		first = NULL;
+		while (dst_offset < PAGE_SIZE && slot < nr_slots) {
+			gop->flags = GNTCOPY_source_gref;
+
+			gop->source.u.ref = txp->gref;
+			gop->source.domid = vif->domid;
+			gop->source.offset = txp->offset;
+
+			gop->dest.domid = DOMID_SELF;
+
+			gop->dest.offset = dst_offset;
+			gop->dest.u.gmfn = virt_to_mfn(page_address(page));
+
+			if (dst_offset + txp->size > PAGE_SIZE) {
+				/* This page can only merge a portion
+				 * of tx request. Do not increment any
+				 * pointer / counter here. The txp
+				 * will be dealt with in future
+				 * rounds, eventually hitting the
+				 * `else` branch.
+				 */
+				gop->len = PAGE_SIZE - dst_offset;
+				txp->offset += gop->len;
+				txp->size -= gop->len;
+				dst_offset += gop->len; /* quit loop */
+			} else {
+				/* This tx request can be merged in the page */
+				gop->len = txp->size;
+				dst_offset += gop->len;
+
+				index = pending_index(netbk->pending_cons++);
+
+				pending_idx = netbk->pending_ring[index];
+
+				memcpy(&pending_tx_info[pending_idx].req, txp,
+				       sizeof(*txp));
+				xenvif_get(vif);
+
+				pending_tx_info[pending_idx].vif = vif;
+
+				/* Poison these fields, corresponding
+				 * fields for head tx req will be set
+				 * to correct values after the loop.
+				 */
+				netbk->mmap_pages[pending_idx] = (void *)(~0UL);
+				pending_tx_info[pending_idx].head =
+					INVALID_PENDING_RING_IDX;
+
+				if (!first) {
+					first = &pending_tx_info[pending_idx];
+					start_idx = index;
+					head_idx = pending_idx;
+				}
+
+				txp++;
+				slot++;
+			}
 
-		gop++;
+			gop++;
+		}
 
-		memcpy(&pending_tx_info[pending_idx].req, txp, sizeof(*txp));
-		xenvif_get(vif);
-		pending_tx_info[pending_idx].vif = vif;
-		frag_set_pending_idx(&frags[i], pending_idx);
+		first->req.offset = 0;
+		first->req.size = dst_offset;
+		first->head = start_idx;
+		set_page_ext(page, netbk, head_idx);
+		netbk->mmap_pages[head_idx] = page;
+		frag_set_pending_idx(&frags[shinfo->nr_frags], head_idx);
 	}
 
+	BUG_ON(shinfo->nr_frags > MAX_SKB_FRAGS);
+
 	return gop;
 err:
 	/* Unwind, freeing all pages and sending error responses. */
-	while (i-- > start) {
-		xen_netbk_idx_release(netbk, frag_get_pending_idx(&frags[i]),
-				      XEN_NETIF_RSP_ERROR);
+	while (shinfo->nr_frags-- > start) {
+		xen_netbk_idx_release(netbk,
+				frag_get_pending_idx(&frags[shinfo->nr_frags]),
+				XEN_NETIF_RSP_ERROR);
 	}
 	/* The head too, if necessary. */
 	if (start)
@@ -990,8 +1117,10 @@ static int xen_netbk_tx_check_gop(struct xen_netbk *netbk,
 	struct gnttab_copy *gop = *gopp;
 	u16 pending_idx = *((u16 *)skb->data);
 	struct skb_shared_info *shinfo = skb_shinfo(skb);
+	struct pending_tx_info *tx_info;
 	int nr_frags = shinfo->nr_frags;
 	int i, err, start;
+	u16 peek; /* peek into next tx request */
 
 	/* Check status of header. */
 	err = gop->status;
@@ -1003,11 +1132,20 @@ static int xen_netbk_tx_check_gop(struct xen_netbk *netbk,
 
 	for (i = start; i < nr_frags; i++) {
 		int j, newerr;
+		pending_ring_idx_t head;
 
 		pending_idx = frag_get_pending_idx(&shinfo->frags[i]);
+		tx_info = &netbk->pending_tx_info[pending_idx];
+		head = tx_info->head;
 
 		/* Check error status: if okay then remember grant handle. */
-		newerr = (++gop)->status;
+		do {
+			newerr = (++gop)->status;
+			if (newerr)
+				break;
+			peek = netbk->pending_ring[pending_index(++head)];
+		} while (!pending_tx_is_head(netbk, peek));
+
 		if (likely(!newerr)) {
 			/* Had a previous error? Invalidate this fragment. */
 			if (unlikely(err))
@@ -1232,11 +1370,12 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 	struct sk_buff *skb;
 	int ret;
 
-	while (((nr_pending_reqs(netbk) + MAX_SKB_FRAGS) < MAX_PENDING_REQS) &&
+	while ((nr_pending_reqs(netbk) + XEN_NETIF_NR_SLOTS_MIN
+		< MAX_PENDING_REQS) &&
 		!list_empty(&netbk->net_schedule_list)) {
 		struct xenvif *vif;
 		struct xen_netif_tx_request txreq;
-		struct xen_netif_tx_request txfrags[MAX_SKB_FRAGS];
+		struct xen_netif_tx_request txfrags[max_skb_slots];
 		struct page *page;
 		struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX-1];
 		u16 pending_idx;
@@ -1297,7 +1436,8 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 				continue;
 		}
 
-		ret = netbk_count_requests(vif, &txreq, txfrags, work_to_do);
+		ret = netbk_count_requests(vif, &txreq, idx,
+					   txfrags, work_to_do);
 		if (unlikely(ret < 0))
 			continue;
 
@@ -1324,7 +1464,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		pending_idx = netbk->pending_ring[index];
 
 		data_len = (txreq.size > PKT_PROT_LEN &&
-			    ret < MAX_SKB_FRAGS) ?
+			    ret < XEN_NETIF_NR_SLOTS_MIN) ?
 			PKT_PROT_LEN : txreq.size;
 
 		skb = alloc_skb(data_len + NET_SKB_PAD + NET_IP_ALIGN,
@@ -1374,6 +1514,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		memcpy(&netbk->pending_tx_info[pending_idx].req,
 		       &txreq, sizeof(txreq));
 		netbk->pending_tx_info[pending_idx].vif = vif;
+		netbk->pending_tx_info[pending_idx].head = index;
 		*((u16 *)skb->data) = pending_idx;
 
 		__skb_put(skb, data_len);
@@ -1504,7 +1645,10 @@ static void xen_netbk_idx_release(struct xen_netbk *netbk, u16 pending_idx,
 {
 	struct xenvif *vif;
 	struct pending_tx_info *pending_tx_info;
-	pending_ring_idx_t index;
+	pending_ring_idx_t head;
+	u16 peek; /* peek into next tx request */
+
+	BUG_ON(netbk->mmap_pages[pending_idx] == (void *)(~0UL));
 
 	/* Already complete? */
 	if (netbk->mmap_pages[pending_idx] == NULL)
@@ -1513,19 +1657,40 @@ static void xen_netbk_idx_release(struct xen_netbk *netbk, u16 pending_idx,
 	pending_tx_info = &netbk->pending_tx_info[pending_idx];
 
 	vif = pending_tx_info->vif;
+	head = pending_tx_info->head;
 
-	make_tx_response(vif, &pending_tx_info->req, status);
+	BUG_ON(!pending_tx_is_head(netbk, head));
+	BUG_ON(netbk->pending_ring[pending_index(head)] != pending_idx);
 
-	index = pending_index(netbk->pending_prod++);
-	netbk->pending_ring[index] = pending_idx;
+	do {
+		pending_ring_idx_t index;
+		pending_ring_idx_t idx = pending_index(head);
+		u16 info_idx = netbk->pending_ring[idx];
 
-	xenvif_put(vif);
+		pending_tx_info = &netbk->pending_tx_info[info_idx];
+		make_tx_response(vif, &pending_tx_info->req, status);
+
+		/* Setting any number other than
+		 * INVALID_PENDING_RING_IDX indicates this slot is
+		 * starting a new packet / ending a previous packet.
+		 */
+		pending_tx_info->head = 0;
+
+		index = pending_index(netbk->pending_prod++);
+		netbk->pending_ring[index] = netbk->pending_ring[info_idx];
+
+		xenvif_put(vif);
+
+		peek = netbk->pending_ring[pending_index(++head)];
+
+	} while (!pending_tx_is_head(netbk, peek));
 
 	netbk->mmap_pages[pending_idx]->mapping = 0;
 	put_page(netbk->mmap_pages[pending_idx]);
 	netbk->mmap_pages[pending_idx] = NULL;
 }
 
+
 static void make_tx_response(struct xenvif *vif,
 			     struct xen_netif_tx_request *txp,
 			     s8       st)
@@ -1578,8 +1743,9 @@ static inline int rx_work_todo(struct xen_netbk *netbk)
 static inline int tx_work_todo(struct xen_netbk *netbk)
 {
 
-	if (((nr_pending_reqs(netbk) + MAX_SKB_FRAGS) < MAX_PENDING_REQS) &&
-			!list_empty(&netbk->net_schedule_list))
+	if ((nr_pending_reqs(netbk) + XEN_NETIF_NR_SLOTS_MIN
+	     < MAX_PENDING_REQS) &&
+	     !list_empty(&netbk->net_schedule_list))
 		return 1;
 
 	return 0;
@@ -1662,6 +1828,13 @@ static int __init netback_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
+	if (max_skb_slots < XEN_NETIF_NR_SLOTS_MIN) {
+		printk(KERN_INFO
+		       "xen-netback: max_skb_slots too small (%d), bump it to XEN_NETIF_NR_SLOTS_MIN (%d)\n",
+		       max_skb_slots, XEN_NETIF_NR_SLOTS_MIN);
+		max_skb_slots = XEN_NETIF_NR_SLOTS_MIN;
+	}
+
 	xen_netbk_group_nr = num_online_cpus();
 	xen_netbk = vzalloc(sizeof(struct xen_netbk) * xen_netbk_group_nr);
 	if (!xen_netbk)
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index cb94668..a36c87a 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -13,6 +13,24 @@
 #include "../grant_table.h"
 
 /*
+ * Older implementation of Xen network frontend / backend has an
+ * implicit dependency on the MAX_SKB_FRAGS as the maximum number of
+ * ring slots a skb can use. Netfront / netback may not work as
+ * expected when frontend and backend have different MAX_SKB_FRAGS.
+ *
+ * A better approach is to add mechanism for netfront / netback to
+ * negotiate this value. However we cannot fix all possible
+ * frontends, so we need to define a value which states the minimum
+ * slots backend must support.
+ *
+ * The minimum value derives from older Linux kernel's MAX_SKB_FRAGS
+ * (18), which is proved to work with most frontends. Any new backend
+ * which doesn't negotiate with frontend should expect frontend to
+ * send a valid packet using slots up to this value.
+ */
+#define XEN_NETIF_NR_SLOTS_MIN 18
+
+/*
  * Notifications after enqueuing any type of message should be conditional on
  * the appropriate req_event or rsp_event field in the shared ring.
  * If the client sends notification for rx requests then it should specify
-- 
1.7.10.4

[061/141] xen-netback: dont disconnect frontend when seeing oversize packet

[Steven Rostedt]

[-- Attachment #1: 0061-xen-netback-don-t-disconnect-frontend-when-seeing-ov.patch --]
[-- Type: text/plain, Size: 2158 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit 03393fd5cc2b6cdeec32b704ecba64dbb0feae3c ]

Some frontend drivers are sending packets > 64 KiB in length. This length
overflows the length field in the first slot making the following slots have
an invalid length.

Turn this error back into a non-fatal error by dropping the packet. To avoid
having the following slots having fatal errors, consume all slots in the
packet.

This does not reopen the security hole in XSA-39 as if the packet as an
invalid number of slots it will still hit fatal error case.

Signed-off-by: David Vrabel <david.vrabel@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netback/netback.c |   22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index d5a4e74..89dd960 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -946,12 +946,22 @@ static int netbk_count_requests(struct xenvif *vif,
 
 		memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + slots),
 		       sizeof(*txp));
-		if (txp->size > first->size) {
-			netdev_err(vif->dev,
-				   "Invalid tx request, slot size %u > remaining size %u\n",
-				   txp->size, first->size);
-			netbk_fatal_tx_err(vif);
-			return -EIO;
+
+		/* If the guest submitted a frame >= 64 KiB then
+		 * first->size overflowed and following slots will
+		 * appear to be larger than the frame.
+		 *
+		 * This cannot be fatal error as there are buggy
+		 * frontends that do this.
+		 *
+		 * Consume all slots and drop the packet.
+		 */
+		if (!drop_err && txp->size > first->size) {
+			if (net_ratelimit())
+				netdev_dbg(vif->dev,
+					   "Invalid tx request, slot size %u > remaining size %u\n",
+					   txp->size, first->size);
+			drop_err = -EIO;
 		}
 
 		first->size -= txp->size;
-- 
1.7.10.4

[062/141] xen-netback: remove redundent parameter in netbk_count_requests

[Steven Rostedt]

[-- Attachment #1: 0062-xen-netback-remove-redundent-parameter-in-netbk_coun.patch --]
[-- Type: text/plain, Size: 1675 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit ac69c26e7accb04ae2cb9ab0872068983a42b3c8 ]

Tracking down from the caller, first_idx is always equal to vif->tx.req_cons.
Remove it to avoid confusion.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netback/netback.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 89dd960..b78839e 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -899,7 +899,6 @@ static void netbk_fatal_tx_err(struct xenvif *vif)
 
 static int netbk_count_requests(struct xenvif *vif,
 				struct xen_netif_tx_request *first,
-				RING_IDX first_idx,
 				struct xen_netif_tx_request *txp,
 				int work_to_do)
 {
@@ -976,7 +975,7 @@ static int netbk_count_requests(struct xenvif *vif,
 	} while ((txp++)->flags & XEN_NETTXF_more_data);
 
 	if (drop_err) {
-		netbk_tx_err(vif, first, first_idx + slots);
+		netbk_tx_err(vif, first, cons + slots);
 		return drop_err;
 	}
 
@@ -1446,8 +1445,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 				continue;
 		}
 
-		ret = netbk_count_requests(vif, &txreq, idx,
-					   txfrags, work_to_do);
+		ret = netbk_count_requests(vif, &txreq, txfrags, work_to_do);
 		if (unlikely(ret < 0))
 			continue;
 
-- 
1.7.10.4

[063/141] xen-netback: avoid allocating variable size array on stack

[Steven Rostedt]

[-- Attachment #1: 0063-xen-netback-avoid-allocating-variable-size-array-on-.patch --]
[-- Type: text/plain, Size: 2234 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit 59ccb4ebbc35e36a3c143f2d1355deb75c2e628f ]

Tune xen_netbk_count_requests to not touch working array beyond limit, so that
we can make working array size constant.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netback/netback.c |   16 ++++++++++++++--
 1 file changed, 14 insertions(+), 2 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index b78839e..4925188 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -905,11 +905,14 @@ static int netbk_count_requests(struct xenvif *vif,
 	RING_IDX cons = vif->tx.req_cons;
 	int slots = 0;
 	int drop_err = 0;
+	int more_data;
 
 	if (!(first->flags & XEN_NETTXF_more_data))
 		return 0;
 
 	do {
+		struct xen_netif_tx_request dropped_tx = { 0 };
+
 		if (slots >= work_to_do) {
 			netdev_err(vif->dev,
 				   "Asked for %d slots but exceeds this limit\n",
@@ -943,6 +946,9 @@ static int netbk_count_requests(struct xenvif *vif,
 			drop_err = -E2BIG;
 		}
 
+		if (drop_err)
+			txp = &dropped_tx;
+
 		memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + slots),
 		       sizeof(*txp));
 
@@ -972,7 +978,13 @@ static int netbk_count_requests(struct xenvif *vif,
 			netbk_fatal_tx_err(vif);
 			return -EINVAL;
 		}
-	} while ((txp++)->flags & XEN_NETTXF_more_data);
+
+		more_data = txp->flags & XEN_NETTXF_more_data;
+
+		if (!drop_err)
+			txp++;
+
+	} while (more_data);
 
 	if (drop_err) {
 		netbk_tx_err(vif, first, cons + slots);
@@ -1384,7 +1396,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		!list_empty(&netbk->net_schedule_list)) {
 		struct xenvif *vif;
 		struct xen_netif_tx_request txreq;
-		struct xen_netif_tx_request txfrags[max_skb_slots];
+		struct xen_netif_tx_request txfrags[XEN_NETIF_NR_SLOTS_MIN];
 		struct page *page;
 		struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX-1];
 		u16 pending_idx;
-- 
1.7.10.4

[064/141] xen-netfront: reduce gso_max_size to account for max TCP header

[Steven Rostedt]

[-- Attachment #1: 0064-xen-netfront-reduce-gso_max_size-to-account-for-max-.patch --]
[-- Type: text/plain, Size: 2973 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit 9ecd1a75d977e2e8c48139c7d3efed183f898d94 ]

The maximum packet including header that can be handled by netfront / netback
wire format is 65535. Reduce gso_max_size accordingly.

Drop skb and print warning when skb->len > 65535. This can 1) save the effort
to send malformed packet to netback, 2) help spotting misconfiguration of
netfront in the future.

Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Acked-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netfront.c       |   17 +++++++++++++++--
 include/xen/interface/io/netif.h |    1 +
 2 files changed, 16 insertions(+), 2 deletions(-)

diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 650f79a..ecac034 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -36,7 +36,7 @@
 #include <linux/skbuff.h>
 #include <linux/ethtool.h>
 #include <linux/if_ether.h>
-#include <linux/tcp.h>
+#include <net/tcp.h>
 #include <linux/udp.h>
 #include <linux/moduleparam.h>
 #include <linux/mm.h>
@@ -491,6 +491,16 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int len = skb_headlen(skb);
 	unsigned long flags;
 
+	/* If skb->len is too big for wire format, drop skb and alert
+	 * user about misconfiguration.
+	 */
+	if (unlikely(skb->len > XEN_NETIF_MAX_TX_SIZE)) {
+		net_alert_ratelimited(
+			"xennet: skb->len = %u, too big for wire format\n",
+			skb->len);
+		goto drop;
+	}
+
 	frags += DIV_ROUND_UP(offset + len, PAGE_SIZE);
 	if (unlikely(frags > MAX_SKB_FRAGS + 1)) {
 		printk(KERN_ALERT "xennet: skb rides the rocket: %d frags\n",
@@ -1026,7 +1036,8 @@ err:
 
 static int xennet_change_mtu(struct net_device *dev, int mtu)
 {
-	int max = xennet_can_sg(dev) ? 65535 - ETH_HLEN : ETH_DATA_LEN;
+	int max = xennet_can_sg(dev) ?
+		XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER : ETH_DATA_LEN;
 
 	if (mtu > max)
 		return -EINVAL;
@@ -1330,6 +1341,8 @@ static struct net_device * __devinit xennet_create_dev(struct xenbus_device *dev
 	SET_ETHTOOL_OPS(netdev, &xennet_ethtool_ops);
 	SET_NETDEV_DEV(netdev, &dev->dev);
 
+	netif_set_gso_max_size(netdev, XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER);
+
 	np->netdev = netdev;
 
 	netif_carrier_off(netdev);
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index a36c87a..d4635cd 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -65,6 +65,7 @@
 #define _XEN_NETTXF_extra_info		(3)
 #define  XEN_NETTXF_extra_info		(1U<<_XEN_NETTXF_extra_info)
 
+#define XEN_NETIF_MAX_TX_SIZE 0xFFFF
 struct xen_netif_tx_request {
     grant_ref_t gref;      /* Reference to buffer page */
     uint16_t offset;       /* Offset within buffer page */
-- 
1.7.10.4

[065/141] xen-netback: better names for thresholds

[Steven Rostedt]

[-- Attachment #1: 0065-xen-netback-better-names-for-thresholds.patch --]
[-- Type: text/plain, Size: 5751 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Wei Liu <wei.liu2@citrix.com>

[ Upstream commit 376414945d15aa636e65f7e773c1e398b7a21cb9 ]

This patch only changes some names to avoid confusion.

In this patch we have:

  MAX_SKB_SLOTS_DEFAULT -> FATAL_SKB_SLOTS_DEFAULT
  max_skb_slots -> fatal_skb_slots
  #define XEN_NETBK_LEGACY_SLOTS_MAX XEN_NETIF_NR_SLOTS_MIN

The fatal_skb_slots is the threshold to determine whether a packet is
malicious.

XEN_NETBK_LEGACY_SLOTS_MAX is the maximum slots a valid packet can have at
this point. It is defined to be XEN_NETIF_NR_SLOTS_MIN because that's
guaranteed to be supported by all backends.

Suggested-by: Ian Campbell <ian.campbell@citrix.com>
Signed-off-by: Wei Liu <wei.liu2@citrix.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/xen-netback/netback.c |   49 ++++++++++++++++++++++---------------
 1 file changed, 29 insertions(+), 20 deletions(-)

diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 4925188..9084f8e 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -50,9 +50,17 @@
  * This is the maximum slots a skb can have. If a guest sends a skb
  * which exceeds this limit it is considered malicious.
  */
-#define MAX_SKB_SLOTS_DEFAULT 20
-static unsigned int max_skb_slots = MAX_SKB_SLOTS_DEFAULT;
-module_param(max_skb_slots, uint, 0444);
+#define FATAL_SKB_SLOTS_DEFAULT 20
+static unsigned int fatal_skb_slots = FATAL_SKB_SLOTS_DEFAULT;
+module_param(fatal_skb_slots, uint, 0444);
+
+/*
+ * To avoid confusion, we define XEN_NETBK_LEGACY_SLOTS_MAX indicating
+ * the maximum slots a valid packet can use. Now this value is defined
+ * to be XEN_NETIF_NR_SLOTS_MIN, which is supposed to be supported by
+ * all backend.
+ */
+#define XEN_NETBK_LEGACY_SLOTS_MAX XEN_NETIF_NR_SLOTS_MIN
 
 typedef unsigned int pending_ring_idx_t;
 #define INVALID_PENDING_RING_IDX (~0U)
@@ -924,25 +932,26 @@ static int netbk_count_requests(struct xenvif *vif,
 		/* This guest is really using too many slots and
 		 * considered malicious.
 		 */
-		if (unlikely(slots >= max_skb_slots)) {
+		if (unlikely(slots >= fatal_skb_slots)) {
 			netdev_err(vif->dev,
 				   "Malicious frontend using %d slots, threshold %u\n",
-				   slots, max_skb_slots);
+				   slots, fatal_skb_slots);
 			netbk_fatal_tx_err(vif);
 			return -E2BIG;
 		}
 
 		/* Xen network protocol had implicit dependency on
-		 * MAX_SKB_FRAGS. XEN_NETIF_NR_SLOTS_MIN is set to the
-		 * historical MAX_SKB_FRAGS value 18 to honor the same
-		 * behavior as before. Any packet using more than 18
-		 * slots but less than max_skb_slots slots is dropped
+		 * MAX_SKB_FRAGS. XEN_NETBK_LEGACY_SLOTS_MAX is set to
+		 * the historical MAX_SKB_FRAGS value 18 to honor the
+		 * same behavior as before. Any packet using more than
+		 * 18 slots but less than fatal_skb_slots slots is
+		 * dropped
 		 */
-		if (!drop_err && slots >= XEN_NETIF_NR_SLOTS_MIN) {
+		if (!drop_err && slots >= XEN_NETBK_LEGACY_SLOTS_MAX) {
 			if (net_ratelimit())
 				netdev_dbg(vif->dev,
 					   "Too many slots (%d) exceeding limit (%d), dropping packet\n",
-					   slots, XEN_NETIF_NR_SLOTS_MIN);
+					   slots, XEN_NETBK_LEGACY_SLOTS_MAX);
 			drop_err = -E2BIG;
 		}
 
@@ -1024,7 +1033,7 @@ static struct gnttab_copy *xen_netbk_get_requests(struct xen_netbk *netbk,
 	struct pending_tx_info *first = NULL;
 
 	/* At this point shinfo->nr_frags is in fact the number of
-	 * slots, which can be as large as XEN_NETIF_NR_SLOTS_MIN.
+	 * slots, which can be as large as XEN_NETBK_LEGACY_SLOTS_MAX.
 	 */
 	nr_slots = shinfo->nr_frags;
 
@@ -1391,12 +1400,12 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 	struct sk_buff *skb;
 	int ret;
 
-	while ((nr_pending_reqs(netbk) + XEN_NETIF_NR_SLOTS_MIN
+	while ((nr_pending_reqs(netbk) + XEN_NETBK_LEGACY_SLOTS_MAX
 		< MAX_PENDING_REQS) &&
 		!list_empty(&netbk->net_schedule_list)) {
 		struct xenvif *vif;
 		struct xen_netif_tx_request txreq;
-		struct xen_netif_tx_request txfrags[XEN_NETIF_NR_SLOTS_MIN];
+		struct xen_netif_tx_request txfrags[XEN_NETBK_LEGACY_SLOTS_MAX];
 		struct page *page;
 		struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX-1];
 		u16 pending_idx;
@@ -1484,7 +1493,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		pending_idx = netbk->pending_ring[index];
 
 		data_len = (txreq.size > PKT_PROT_LEN &&
-			    ret < XEN_NETIF_NR_SLOTS_MIN) ?
+			    ret < XEN_NETBK_LEGACY_SLOTS_MAX) ?
 			PKT_PROT_LEN : txreq.size;
 
 		skb = alloc_skb(data_len + NET_SKB_PAD + NET_IP_ALIGN,
@@ -1763,7 +1772,7 @@ static inline int rx_work_todo(struct xen_netbk *netbk)
 static inline int tx_work_todo(struct xen_netbk *netbk)
 {
 
-	if ((nr_pending_reqs(netbk) + XEN_NETIF_NR_SLOTS_MIN
+	if ((nr_pending_reqs(netbk) + XEN_NETBK_LEGACY_SLOTS_MAX
 	     < MAX_PENDING_REQS) &&
 	     !list_empty(&netbk->net_schedule_list))
 		return 1;
@@ -1848,11 +1857,11 @@ static int __init netback_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
-	if (max_skb_slots < XEN_NETIF_NR_SLOTS_MIN) {
+	if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) {
 		printk(KERN_INFO
-		       "xen-netback: max_skb_slots too small (%d), bump it to XEN_NETIF_NR_SLOTS_MIN (%d)\n",
-		       max_skb_slots, XEN_NETIF_NR_SLOTS_MIN);
-		max_skb_slots = XEN_NETIF_NR_SLOTS_MIN;
+		       "xen-netback: fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n",
+		       fatal_skb_slots, XEN_NETBK_LEGACY_SLOTS_MAX);
+		fatal_skb_slots = XEN_NETBK_LEGACY_SLOTS_MAX;
 	}
 
 	xen_netbk_group_nr = num_online_cpus();
-- 
1.7.10.4

[066/141] USB: serial: Add Option GTM681W to qcserial device table.

[Steven Rostedt]

[-- Attachment #1: 0066-USB-serial-Add-Option-GTM681W-to-qcserial-device-tab.patch --]
[-- Type: text/plain, Size: 1212 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Richard Weinberger <richard@nod.at>

[ Upstream commit 8a2f132a01c2dd4c3905fa560f92019761ed72b1 ]

The Option GTM681W uses a qualcomm chip and can be
served by the qcserial device driver.

Signed-off-by: Richard Weinberger <richard@nod.at>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/qcserial.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 93232ca..cdfd838 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -119,6 +119,7 @@ static const struct usb_device_id id_table[] = {
 	{USB_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
 	{USB_DEVICE(0x12D1, 0x14F0)},	/* Sony Gobi 3000 QDL */
 	{USB_DEVICE(0x12D1, 0x14F1)},	/* Sony Gobi 3000 Composite */
+	{USB_DEVICE(0x0AF0, 0x8120)},	/* Option GTM681W */
 
 	/* non Gobi Qualcomm serial devices */
 	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)},	/* Sierra Wireless MC7700 Device Management */
-- 
1.7.10.4

[067/141] USB: option: blacklist network interface on Huawei E1820

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0067-USB-option-blacklist-network-interface-on-Huawei-E18.patch --]
[-- Type: text/plain, Size: 1520 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: =?UTF-8?q?Bj=C3=B8rn=20Mork?= <bjorn@mork.no>

[ Upstream commit b8a24e6281d37243c06b9497dcbfaa98c1e2ad35 ]

The mode used by Windows for the Huawei E1820 will use the
same ff/ff/ff class codes for both serial and network
functions.

Reported-by: Graham Inggs <graham.inggs@uct.ac.za>
Signed-off-by: Bjørn Mork <bjorn@mork.no>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/option.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 625bc3b..27adfce 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -564,6 +564,8 @@ static const struct usb_device_id option_ids[] = {
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
+	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x14ac, 0xff, 0xff, 0xff),	/* Huawei E1820 */
+		.driver_info = (kernel_ulong_t) &net_intf1_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
 	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0xff, 0xff) },
-- 
1.7.10.4

[068/141] xhci - correct comp_mode_recovery_timer on return from hibernate

[Steven Rostedt]

[-- Attachment #1: 0068-xhci-correct-comp_mode_recovery_timer-on-return-from.patch --]
[-- Type: text/plain, Size: 4463 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Tony Camuso <tcamuso@redhat.com>

[ Upstream commit 77df9e0b799b03e1d5d9c68062709af5f637e834 ]

Commit 71c731a2 (usb: host: xhci: Fix Compliance Mode on SN65LVPE502CP
Hardware) was a workaround for systems using the SN65LVPE502CP,
controller, but it introduced a bug in resume from hibernate.

The fix created a timer, comp_mode_recovery_timer, which is deleted from
a timer list when xhci_suspend() is called. However, the hibernate image,
including the timer list containing the comp_mode_recovery_timer, had
already been saved before the timer was deleted.

Upon resume from hibernate, the list containing the comp_mode_recovery_timer
is restored from the image saved to disk, and xhci_resume(), assuming that
the timer had been deleted by xhci_suspend(), makes a call to
compliance_mode_recoery_timer_init(), which creates a new instance of the
comp_mode_recovery_timer and attempts to place it into the same list in which
it is already active, thus corrupting the list during the list_add() call.

At this point, a call trace is emitted indicating the list corruption.
Soon afterward, the system locks up, the watchdog times out, and the
ensuing NMI crashes the system.

The problem did not occur when resuming from suspend. In suspend, the
image in RAM remains exactly as it was when xhci_suspend() deleted the
comp_mode_recovery_timer, so there is no problem when xhci_resume()
creates a new instance of this timer and places it in the still empty
list.

This patch avoids the problem by deleting the timer in xhci_resume()
when resuming from hibernate. Now xhci_resume() can safely make the
call to create a new instance of this timer, whether returning from
suspend or hibernate.

Thanks to Alan Stern for his help with understanding the problem.

[Sarah reworked this patch to cover the case where the xHCI restore
register operation fails, and (temp & STS_SRE) is true (and we re-init
the host, including re-init for the compliance mode), but hibernate is
false.  The original patch would have caused list corruption in this
case.]

This patch should be backported to kernels as old as 3.2, that
contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host:
xhci: Fix Compliance Mode on SN65LVPE502CP Hardware"

Signed-off-by: Tony Camuso <tcamuso@redhat.com>
Tested-by: Tony Camuso <tcamuso@redhat.com>
Acked-by: Don Zickus <dzickus@redhat.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/host/xhci.c |   12 +++++++++++-
 1 file changed, 11 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index fd36acd..6ee481a 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -942,6 +942,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	struct usb_hcd		*hcd = xhci_to_hcd(xhci);
 	struct usb_hcd		*secondary_hcd;
 	int			retval = 0;
+	bool			comp_timer_running = false;
 
 	/* Wait a bit if either of the roothubs need to settle from the
 	 * transition into bus suspend.
@@ -979,6 +980,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 
 	/* If restore operation fails, re-initialize the HC during resume */
 	if ((temp & STS_SRE) || hibernated) {
+
+		if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) &&
+				!(xhci_all_ports_seen_u0(xhci))) {
+			del_timer_sync(&xhci->comp_mode_recovery_timer);
+			xhci_dbg(xhci, "Compliance Mode Recovery Timer deleted!\n");
+		}
+
 		/* Let the USB core know _both_ roothubs lost power. */
 		usb_root_hub_lost_power(xhci->main_hcd->self.root_hub);
 		usb_root_hub_lost_power(xhci->shared_hcd->self.root_hub);
@@ -1021,6 +1029,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 		retval = xhci_init(hcd->primary_hcd);
 		if (retval)
 			return retval;
+		comp_timer_running = true;
+
 		xhci_dbg(xhci, "Start the primary HCD\n");
 		retval = xhci_run(hcd->primary_hcd);
 		if (!retval) {
@@ -1062,7 +1072,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	 * to suffer the Compliance Mode issue again. It doesn't matter if
 	 * ports have entered previously to U0 before system's suspension.
 	 */
-	if (xhci->quirks & XHCI_COMP_MODE_QUIRK)
+	if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running)
 		compliance_mode_recovery_timer_init(xhci);
 
 	return retval;
-- 
1.7.10.4

[069/141] xhci-mem: init list heads at the beginning of init

[Steven Rostedt]

[-- Attachment #1: 0069-xhci-mem-init-list-heads-at-the-beginning-of-init.patch --]
[-- Type: text/plain, Size: 2388 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sergio Aguirre <sergio.a.aguirre.rodriguez@intel.com>

[ Upstream commit 331de00a64e5027365145bdf51da27b9ce15dfd5 ]

It is possible that we fail on xhci_mem_init, just before doing
the INIT_LIST_HEAD, and calling xhci_mem_cleanup.

Problem is that, the list_for_each_entry_safe macro, assumes
list heads are initialized (not NULL), and dereferences their 'next'
pointer, causing a kernel panic if this is not yet initialized.

Let's protect from that by moving inits to the beginning.

This patch should be backported to kernels as old as 3.2, that
contain the commit 9574323c39d1f8359a04843075d89c9f32d8b7e6 "xHCI: test
USB2 software LPM".

Signed-off-by: Sergio Aguirre <sergio.a.aguirre.rodriguez@intel.com>
Acked-by: David Cohen <david.a.cohen@intel.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/host/xhci-mem.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 70db718..0550d53 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -2269,6 +2269,9 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	u32 page_size, temp;
 	int i;
 
+	INIT_LIST_HEAD(&xhci->lpm_failed_devs);
+	INIT_LIST_HEAD(&xhci->cancel_cmd_list);
+
 	page_size = xhci_readl(xhci, &xhci->op_regs->page_size);
 	xhci_dbg(xhci, "Supported page size register = 0x%x\n", page_size);
 	for (i = 0; i < 16; i++) {
@@ -2347,7 +2350,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, flags);
 	if (!xhci->cmd_ring)
 		goto fail;
-	INIT_LIST_HEAD(&xhci->cancel_cmd_list);
 	xhci_dbg(xhci, "Allocated command ring at %p\n", xhci->cmd_ring);
 	xhci_dbg(xhci, "First segment DMA is 0x%llx\n",
 			(unsigned long long)xhci->cmd_ring->first_seg->dma);
@@ -2458,8 +2460,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	if (xhci_setup_port_arrays(xhci, flags))
 		goto fail;
 
-	INIT_LIST_HEAD(&xhci->lpm_failed_devs);
-
 	/* Enable USB 3.0 device notifications for function remote wake, which
 	 * is necessary for allowing USB 3.0 devices to do remote wakeup from
 	 * U3 (device suspend).
-- 
1.7.10.4

[070/141] xhci: fix list access before init

[Steven Rostedt]

[-- Attachment #1: 0070-xhci-fix-list-access-before-init.patch --]
[-- Type: text/plain, Size: 1624 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Vladimir Murzin <murzin.v@gmail.com>

[ Upstream commit 88696ae432ce7321540ac53d9caab3de9118b094 ]

If for whatever reason we fall into fail path in xhci_mem_init()
before bw table gets initialized we may access the uninitialized lists
in xhci_mem_cleanup().

Check for bw table before traversing lists in cleanup routine.

This patch should be backported to kernels as old as 3.2, that contain
the commit 839c817ce67178ca3c7c7ad534c571bba1e69ebe "xhci: Store
information about roothubs and TTs."

Reported-by: Sergey Dyasly <dserrg@gmail.com>
Tested-by: Sergey Dyasly <dserrg@gmail.com>
Signed-off-by: Vladimir Murzin <murzin.v@gmail.com>
Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/host/xhci-mem.c |    4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 0550d53..419d34a 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1840,6 +1840,9 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 	}
 	spin_unlock_irqrestore(&xhci->lock, flags);
 
+	if (!xhci->rh_bw)
+		goto no_bw;
+
 	num_ports = HCS_MAX_PORTS(xhci->hcs_params1);
 	for (i = 0; i < num_ports; i++) {
 		struct xhci_interval_bw_table *bwt = &xhci->rh_bw[i].bw_table;
@@ -1858,6 +1861,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 		}
 	}
 
+no_bw:
 	xhci->num_usb2_ports = 0;
 	xhci->num_usb3_ports = 0;
 	xhci->num_active_eps = 0;
-- 
1.7.10.4

[071/141] xhci: Disable D3cold for buggy TI redrivers.

[Steven Rostedt]

[-- Attachment #1: 0071-xhci-Disable-D3cold-for-buggy-TI-redrivers.patch --]
[-- Type: text/plain, Size: 4380 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sarah Sharp <sarah.a.sharp@linux.intel.com>

[ Upstream commit c3897aa5386faba77e5bbdf94902a1658d3a5b11 ]

Some xHCI hosts contain a "redriver" from TI that silently drops port
status connect changes if the port slips into Compliance Mode.  If the
port slips into compliance mode while the host is in D0, there will not
be a port status change event.  If the port slips into compliance mode
while the host is in D3, the host will not send a PME.  This includes
when the system is suspended (S3) or hibernated (S4).

If this happens when the system is in S3/S4, there is nothing software
can do.  Other port status change events that would normally cause the
host to wake the system from S3/S4 may also be lost.  This includes
remote wakeup, disconnects and connects on other ports, and overrcurrent
events.  A decision was made to _NOT_ disable system suspend/hibernate
on these systems, since users are unlikely to enable wakeup from S3/S4
for the xHCI host.

Software can deal with this issue when the system is in S0.  A work
around was put in to poll the port status registers for Compliance Mode.
The xHCI driver will continue to poll the registers while the host is
runtime suspended.  Unfortunately, that means we can't allow the PCI
device to go into D3cold, because power will be removed from the host,
and the config space will read as all Fs.

Disable D3cold in the xHCI PCI runtime suspend function.

This patch should be backported to kernels as old as 3.2, that
contain the commit 71c731a296f1b08a3724bd1b514b64f1bda87a23 "usb: host:
xhci: Fix Compliance Mode on SN65LVPE502CP Hardware"

Signed-off-by: Sarah Sharp <sarah.a.sharp@linux.intel.com>
Cc: Huang Ying <ying.huang@intel.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/host/xhci-pci.c |   10 ++++++++++
 drivers/usb/host/xhci.c     |    4 ++--
 drivers/usb/host/xhci.h     |    3 +++
 3 files changed, 15 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index dcb72f7..cd0fc48 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -221,12 +221,22 @@ static void xhci_pci_remove(struct pci_dev *dev)
 static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
+	struct pci_dev		*pdev;
 	int	retval = 0;
 
 	if (hcd->state != HC_STATE_SUSPENDED ||
 			xhci->shared_hcd->state != HC_STATE_SUSPENDED)
 		return -EINVAL;
 
+	pdev = to_pci_dev(hcd->self.controller);
+
+	/*
+	 * Systems with the TI redriver that loses port status change events
+	 * need to have the registers polled during D3, so avoid D3cold.
+	 */
+	if (xhci_compliance_mode_recovery_timer_quirk_check())
+		pdev->no_d3cold = true;
+
 	retval = xhci_suspend(xhci);
 
 	return retval;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index 6ee481a..2c117ec 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -466,7 +466,7 @@ static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci)
  * Systems:
  * Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820
  */
-static bool compliance_mode_recovery_timer_quirk_check(void)
+bool xhci_compliance_mode_recovery_timer_quirk_check(void)
 {
 	const char *dmi_product_name, *dmi_sys_vendor;
 
@@ -517,7 +517,7 @@ int xhci_init(struct usb_hcd *hcd)
 	xhci_dbg(xhci, "Finished xhci_init\n");
 
 	/* Initializing Compliance Mode Recovery Data If Needed */
-	if (compliance_mode_recovery_timer_quirk_check()) {
+	if (xhci_compliance_mode_recovery_timer_quirk_check()) {
 		xhci->quirks |= XHCI_COMP_MODE_QUIRK;
 		compliance_mode_recovery_timer_init(xhci);
 	}
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 212d408..f056e9f 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1852,4 +1852,7 @@ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci,
 struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx);
 struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int ep_index);
 
+/* xHCI quirks */
+bool xhci_compliance_mode_recovery_timer_quirk_check(void);
+
 #endif /* __LINUX_XHCI_HCD_H */
-- 
1.7.10.4

[072/141] ALSA: usb-audio: fix Roland/Cakewalk UM-3G support

[Steven Rostedt]

[-- Attachment #1: 0072-ALSA-usb-audio-fix-Roland-Cakewalk-UM-3G-support.patch --]
[-- Type: text/plain, Size: 1285 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Clemens Ladisch <clemens@ladisch.de>

[ Upstream commit a0c6d309c6df14655f9962f666d1da96318b0b7c ]

Commit 927c9423dd5f2d1c0b93d5e694ab84b4a5559713 (ALSA: usb-audio: add
Edirol UM-3G support) used a wrong quirk type, which would make the
driver refuse to attach with the error message "MIDIStreaming interface
descriptor not found".

Cc: <stable@vger.kernel.org> # 3.3 and later
Signed-off-by: Clemens Ladisch <clemens@ladisch.de>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 sound/usb/quirks-table.h |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index d73ac9b..0f7c933 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -1622,7 +1622,11 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x0108),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.ifnum = 0,
-		.type = QUIRK_MIDI_STANDARD_INTERFACE
+		.type = QUIRK_MIDI_FIXED_ENDPOINT,
+		.data = & (const struct snd_usb_midi_endpoint_info) {
+			.out_cables = 0x0007,
+			.in_cables  = 0x0007
+		}
 	}
 },
 {
-- 
1.7.10.4

[073/141] ALSA: usb-audio - Apply Logitech QuickCam Pro 9000 quirk only to audio iface

[Steven Rostedt]

[-- Attachment #1: 0073-ALSA-usb-audio-Apply-Logitech-QuickCam-Pro-9000-quir.patch --]
[-- Type: text/plain, Size: 1219 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 8eafc0a161123d90617c9ca2eddfe87b382b1b89 ]

... instead of applying to all interfaces.

Reference: http://forums.gentoo.org/viewtopic-p-6886404.html

Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 sound/usb/quirks-table.h |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index 0f7c933..5b9381f 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -157,7 +157,13 @@
 	.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL
 },
 {
-	USB_DEVICE(0x046d, 0x0990),
+	.match_flags = USB_DEVICE_ID_MATCH_DEVICE |
+		       USB_DEVICE_ID_MATCH_INT_CLASS |
+		       USB_DEVICE_ID_MATCH_INT_SUBCLASS,
+	.idVendor = 0x046d,
+	.idProduct = 0x0990,
+	.bInterfaceClass = USB_CLASS_AUDIO,
+	.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Logitech, Inc.",
 		.product_name = "QuickCam Pro 9000",
-- 
1.7.10.4

[074/141] ALSA: usb-audio - Fix invalid volume resolution on Logitech HD webcam c270

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0074-ALSA-usb-audio-Fix-invalid-volume-resolution-on-Logi.patch --]
[-- Type: text/plain, Size: 1420 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Takashi Iwai <tiwai@suse.de>

[ Upstream commit 11e7064f35bb87da8f427d1aa4bbd8b7473a3993 ]

USB audio driver spews an error message when probing Logitech HD
webcam c270:
  ALSA mixer.c:1300 usb_audio: Warning! Unlikely big volume range (=6144), cval->res is probably wrong.
  ALSA mixer.c:1304 usb_audio: [5] FU [Mic Capture Volume] ch = 1, val = 1536/7680/1

Obviously the device needs a fixed volume resolution (cval->res = 384)
like other Logitech devices.

Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=821735

Reported-and-tested-by: Cristian Rodríguez <crrodriguez@opensuse.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 sound/usb/mixer.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 900bf42..9a9da0a 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -842,6 +842,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
 	case USB_ID(0x046d, 0x0808):
 	case USB_ID(0x046d, 0x0809):
 	case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */
+	case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */
 	case USB_ID(0x046d, 0x0991):
 	/* Most audio usb devices lie about volume resolution.
 	 * Most Logitech webcams have res = 384.
-- 
1.7.10.4

[075/141] USB: iuu_phoenix: fix bulk-message timeout

[Steven Rostedt]

[-- Attachment #1: 0075-USB-iuu_phoenix-fix-bulk-message-timeout.patch --]
[-- Type: text/plain, Size: 1472 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 6c13ff68a7ce01da7a51b44241a7aad8eaaedde7 ]

The bulk-message timeout is specified in milliseconds and should not
depend on HZ.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/iuu_phoenix.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 8d3692b..ae30f2c 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -311,7 +311,7 @@ static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 	    usb_bulk_msg(serial->dev,
 			 usb_sndbulkpipe(serial->dev,
 					 port->bulk_out_endpointAddress), buf,
-			 count, &actual, HZ * 1);
+			 count, &actual, 1000);
 
 	if (status != IUU_OPERATION_OK)
 		dbg("%s - error = %2x", __func__, status);
@@ -331,7 +331,7 @@ static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 	    usb_bulk_msg(serial->dev,
 			 usb_rcvbulkpipe(serial->dev,
 					 port->bulk_in_endpointAddress), buf,
-			 count, &actual, HZ * 1);
+			 count, &actual, 1000);
 
 	if (status != IUU_OPERATION_OK)
 		dbg("%s - error = %2x", __func__, status);
-- 
1.7.10.4

[076/141] USB: keyspan: fix bogus array index

[Steven Rostedt]

[-- Attachment #1: 0076-USB-keyspan-fix-bogus-array-index.patch --]
[-- Type: text/plain, Size: 1224 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit a07088098a650267b2eda689538133a324b9523f ]

The outcont_endpoints array was indexed using the port minor number
(which can be greater than the array size) rather than the device port
number.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/keyspan.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 059d44b..caf85ab 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1622,7 +1622,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	d_details = s_priv->device_details;
 	device_port = port->number - port->serial->minor;
 
-	outcont_urb = d_details->outcont_endpoints[port->number];
+	outcont_urb = d_details->outcont_endpoints[device_port];
 	this_urb = p_priv->outcont_urb;
 
 	dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
-- 
1.7.10.4

[077/141] USB: ark3116: fix control-message timeout

[Steven Rostedt]

[-- Attachment #1: 0077-USB-ark3116-fix-control-message-timeout.patch --]
[-- Type: text/plain, Size: 1001 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 634371911730a462626071065b64cd6e1fe213e0 ]

The control-message timeout is specified in milliseconds and should not
depend on HZ.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/ark3116.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 5f9eaaf..415c23f 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -49,7 +49,7 @@ static bool debug;
 #define DRIVER_NAME "ark3116"
 
 /* usb timeout of 1 second */
-#define ARK_TIMEOUT (1*HZ)
+#define ARK_TIMEOUT 1000
 
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x6547, 0x0232) },
-- 
1.7.10.4

[078/141] USB: visor: fix initialisation of Treo/Kyocera devices

[Steven Rostedt]

[-- Attachment #1: 0078-USB-visor-fix-initialisation-of-Treo-Kyocera-devices.patch --]
[-- Type: text/plain, Size: 1549 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 420021a395ce38b7ab2cceb52dee4038be7d8fa3 ]

Fix regression introduced by commit 214916f2e ("USB: visor: reimplement
using generic framework") which broke initialisation of Treo/Kyocera
devices that re-mapped bulk-in endpoints.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/visor.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index f253c91..583a98a 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -570,9 +570,17 @@ static int treo_attach(struct usb_serial *serial)
 	*/
 #define COPY_PORT(dest, src)						\
 	do { \
+		int i;							\
+									\
+		for (i = 0; i < ARRAY_SIZE(src->read_urbs); ++i) {	\
+			dest->read_urbs[i] = src->read_urbs[i];		\
+			dest->read_urbs[i]->context = dest;		\
+			dest->bulk_in_buffers[i] = src->bulk_in_buffers[i]; \
+		}							\
 		dest->read_urb = src->read_urb;				\
 		dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
 		dest->bulk_in_buffer = src->bulk_in_buffer;		\
+		dest->bulk_in_size = src->bulk_in_size;			\
 		dest->interrupt_in_urb = src->interrupt_in_urb;		\
 		dest->interrupt_in_endpointAddress = \
 					src->interrupt_in_endpointAddress;\
-- 
1.7.10.4

[079/141] USB: Serial: cypress_M8: Enable FRWD Dongle hidcom device

[Steven Rostedt]

[-- Attachment #1: 0079-USB-Serial-cypress_M8-Enable-FRWD-Dongle-hidcom-devi.patch --]
[-- Type: text/plain, Size: 3662 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Robert Butora <robert.butora.fi@gmail.com>

[ Upstream commit 6529591e3eef65f0f528a81ac169f6e294b947a7 ]

The patch adds a new HIDCOM device and does not affect other devices
driven by the cypress_M8 module. Changes are:
- add VendorID ProductID to device tables
- skip unstable speed check because FRWD uses 115200bps
- skip reset at probe which is an issue workaround for this
particular device.

Signed-off-by: Robert Butora <robert.butora.fi@gmail.com>
Cc: stable <stable@vger.kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/cypress_m8.c |   18 +++++++++++++++++-
 drivers/usb/serial/cypress_m8.h |    4 ++++
 2 files changed, 21 insertions(+), 1 deletion(-)

diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 61de7e1..d7a16ba 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -70,6 +70,7 @@ static const struct usb_device_id id_table_earthmate[] = {
 static const struct usb_device_id id_table_cyphidcomrs232[] = {
 	{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
 	{ USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) },
+	{ USB_DEVICE(VENDOR_ID_FRWD, PRODUCT_ID_CYPHIDCOM_FRWD) },
 	{ }						/* Terminating entry */
 };
 
@@ -83,6 +84,7 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
 	{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
 	{ USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) },
+	{ USB_DEVICE(VENDOR_ID_FRWD, PRODUCT_ID_CYPHIDCOM_FRWD) },
 	{ USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) },
 	{ }						/* Terminating entry */
 };
@@ -235,6 +237,12 @@ static struct usb_serial_driver * const serial_drivers[] = {
  * Cypress serial helper functions
  *****************************************************************************/
 
+/* FRWD Dongle hidcom needs to skip reset and speed checks */
+static inline bool is_frwd(struct usb_device *dev)
+{
+	return ((le16_to_cpu(dev->descriptor.idVendor) == VENDOR_ID_FRWD) &&
+		(le16_to_cpu(dev->descriptor.idProduct) == PRODUCT_ID_CYPHIDCOM_FRWD));
+}
 
 static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 {
@@ -244,6 +252,10 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 	if (unstable_bauds)
 		return new_rate;
 
+	/* FRWD Dongle uses 115200 bps */
+	if (is_frwd(port->serial->dev))
+		return new_rate;
+
 	/*
 	 * The general purpose firmware for the Cypress M8 allows for
 	 * a maximum speed of 57600bps (I have no idea whether DeLorme
@@ -452,7 +464,11 @@ static int cypress_generic_port_probe(struct usb_serial_port *port)
 		return -ENOMEM;
 	}
 
-	usb_reset_configuration(serial->dev);
+	/* Skip reset for FRWD device. It is a workaound:
+	   device hangs if it receives SET_CONFIGURE in Configured
+	   state. */
+	if (!is_frwd(serial->dev))
+		usb_reset_configuration(serial->dev);
 
 	priv->cmd_ctrl = 0;
 	priv->line_control = 0;
diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index 67cf608..b461311 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -24,6 +24,10 @@
 #define VENDOR_ID_CYPRESS		0x04b4
 #define PRODUCT_ID_CYPHIDCOM		0x5500
 
+/* FRWD Dongle - a GPS sports watch */
+#define VENDOR_ID_FRWD			0x6737
+#define PRODUCT_ID_CYPHIDCOM_FRWD	0x0001
+
 /* Powercom UPS, chip CY7C63723 */
 #define VENDOR_ID_POWERCOM		0x0d9f
 #define PRODUCT_ID_UPS			0x0002
-- 
1.7.10.4

[080/141] USB: whiteheat: fix broken port configuration

[Steven Rostedt]

[-- Attachment #1: 0080-USB-whiteheat-fix-broken-port-configuration.patch --]
[-- Type: text/plain, Size: 1175 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 9eecf22d2b375b9064a20421c6c307b760b03d46 ]

When configuring the port (e.g. set_termios) the port minor number
rather than the port number was used in the request (and they only
coincide for minor number 0).

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/whiteheat.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index bd36321..e8d650b 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -720,7 +720,7 @@ static void firm_setup_port(struct tty_struct *tty)
 	struct whiteheat_port_settings port_settings;
 	unsigned int cflag = tty->termios->c_cflag;
 
-	port_settings.port = port->number + 1;
+	port_settings.port = port->number - port->serial->minor + 1;
 
 	/* get the byte size */
 	switch (cflag & CSIZE) {
-- 
1.7.10.4

[081/141] USB: serial: fix Treo/Kyocera interrrupt-in urb context

[Steven Rostedt]

[-- Attachment #1: 0081-USB-serial-fix-Treo-Kyocera-interrrupt-in-urb-contex.patch --]
[-- Type: text/plain, Size: 1198 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 5f8e2c07d75967ee49a5da1d21ddf5f50d48cda0 ]

The first and second interrupt-in urbs are swapped for some Treo/Kyocera
devices, but the urb context was never updated with the new port.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/visor.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index 583a98a..4b53336 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -582,6 +582,7 @@ static int treo_attach(struct usb_serial *serial)
 		dest->bulk_in_buffer = src->bulk_in_buffer;		\
 		dest->bulk_in_size = src->bulk_in_size;			\
 		dest->interrupt_in_urb = src->interrupt_in_urb;		\
+		dest->interrupt_in_urb->context = dest;			\
 		dest->interrupt_in_endpointAddress = \
 					src->interrupt_in_endpointAddress;\
 		dest->interrupt_in_buffer = src->interrupt_in_buffer;	\
-- 
1.7.10.4

[082/141] USB: mos7840: fix DMA to stack

[Steven Rostedt]

[-- Attachment #1: 0082-USB-mos7840-fix-DMA-to-stack.patch --]
[-- Type: text/plain, Size: 3330 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 15ee89c3347fbf58a4361011eda5ac2731e45126 ]

Fix regression introduced by commit 0eafe4de1a ("USB: serial: mos7840:
add support for MCS7810 devices") which used stack-allocated buffers for
control messages.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/mos7840.c |   35 +++++++++++++++++++++++++++--------
 1 file changed, 27 insertions(+), 8 deletions(-)

diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 8654df0..3193d25 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2341,13 +2341,21 @@ static int mos7840_ioctl(struct tty_struct *tty,
 static int mos7810_check(struct usb_serial *serial)
 {
 	int i, pass_count = 0;
+	u8 *buf;
 	__u16 data = 0, mcr_data = 0;
 	__u16 test_pattern = 0x55AA;
+	int res;
+
+	buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+	if (!buf)
+		return 0;	/* failed to identify 7810 */
 
 	/* Store MCR setting */
-	usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+	res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 		MCS_RDREQ, MCS_RD_RTYPE, 0x0300, MODEM_CONTROL_REGISTER,
-		&mcr_data, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		buf, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+	if (res == VENDOR_READ_LENGTH)
+		mcr_data = *buf;
 
 	for (i = 0; i < 16; i++) {
 		/* Send the 1-bit test pattern out to MCS7810 test pin */
@@ -2357,9 +2365,12 @@ static int mos7810_check(struct usb_serial *serial)
 			MODEM_CONTROL_REGISTER, NULL, 0, MOS_WDR_TIMEOUT);
 
 		/* Read the test pattern back */
-		usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
-			MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &data,
-			VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		res = usb_control_msg(serial->dev,
+				usb_rcvctrlpipe(serial->dev, 0), MCS_RDREQ,
+				MCS_RD_RTYPE, 0, GPIO_REGISTER, buf,
+				VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		if (res == VENDOR_READ_LENGTH)
+			data = *buf;
 
 		/* If this is a MCS7810 device, both test patterns must match */
 		if (((test_pattern >> i) ^ (~data >> 1)) & 0x0001)
@@ -2373,6 +2384,8 @@ static int mos7810_check(struct usb_serial *serial)
 		MCS_WR_RTYPE, 0x0300 | mcr_data, MODEM_CONTROL_REGISTER, NULL,
 		0, MOS_WDR_TIMEOUT);
 
+	kfree(buf);
+
 	if (pass_count == 16)
 		return 1;
 
@@ -2382,11 +2395,17 @@ static int mos7810_check(struct usb_serial *serial)
 static int mos7840_calc_num_ports(struct usb_serial *serial)
 {
 	__u16 data = 0x00;
+	u8 *buf;
 	int mos7840_num_ports;
 
-	usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
-		MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &data,
-		VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+	buf = kzalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+	if (buf) {
+		usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+			MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, buf,
+			VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		data = *buf;
+		kfree(buf);
+	}
 
 	if (serial->dev->descriptor.idProduct == MOSCHIP_DEVICE_ID_7810 ||
 		serial->dev->descriptor.idProduct == MOSCHIP_DEVICE_ID_7820) {
-- 
1.7.10.4

[083/141] USB: mos7720: fix DMA to stack

[Steven Rostedt]

[-- Attachment #1: 0083-USB-mos7720-fix-DMA-to-stack.patch --]
[-- Type: text/plain, Size: 1543 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 72ea18a558ed7a63a50bb121ba60d73b5b38ae30 ]

The read_mos_reg function is called with stack-allocated buffers, which
must not be used for control messages.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/mos7720.c |   17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index eb84767..5b824d9 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -234,11 +234,22 @@ static int read_mos_reg(struct usb_serial *serial, unsigned int serial_portnum,
 	__u8 requesttype = (__u8)0xc0;
 	__u16 index = get_reg_index(reg);
 	__u16 value = get_reg_value(reg, serial_portnum);
-	int status = usb_control_msg(usbdev, pipe, request, requesttype, value,
-				     index, data, 1, MOS_WDR_TIMEOUT);
-	if (status < 0)
+	u8 *buf;
+	int status;
+
+	buf = kmalloc(1, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	status = usb_control_msg(usbdev, pipe, request, requesttype, value,
+				     index, buf, 1, MOS_WDR_TIMEOUT);
+	if (status == 1)
+		*data = *buf;
+	else if (status < 0)
 		dev_err(&usbdev->dev,
 			"mos7720: usb_control_msg() failed: %d", status);
+	kfree(buf);
+
 	return status;
 }
 
-- 
1.7.10.4

[084/141] USB: mos7720: fix message timeouts

[Steven Rostedt]

[-- Attachment #1: 0084-USB-mos7720-fix-message-timeouts.patch --]
[-- Type: text/plain, Size: 1769 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 849513a7809175420d353625b6f651d961e99d49 ]

The control and bulk-message timeouts are specified in milliseconds and
should not depend on HZ.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/mos7720.c |    6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 5b824d9..98fd1eb 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -44,7 +44,7 @@
 #define DRIVER_DESC "Moschip USB Serial Driver"
 
 /* default urb timeout */
-#define MOS_WDR_TIMEOUT	(HZ * 5)
+#define MOS_WDR_TIMEOUT	5000
 
 #define MOS_MAX_PORT	0x02
 #define MOS_WRITE	0x0E
@@ -2074,7 +2074,7 @@ static int mos7720_startup(struct usb_serial *serial)
 
 	/* setting configuration feature to one */
 	usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
-			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5*HZ);
+			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000);
 
 	/* start the interrupt urb */
 	ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
@@ -2117,7 +2117,7 @@ static void mos7720_release(struct usb_serial *serial)
 		/* wait for synchronous usb calls to return */
 		if (mos_parport->msg_pending)
 			wait_for_completion_timeout(&mos_parport->syncmsg_compl,
-						    MOS_WDR_TIMEOUT);
+					    msecs_to_jiffies(MOS_WDR_TIMEOUT));
 
 		parport_remove_port(mos_parport->pp);
 		usb_set_serial_data(serial, NULL);
-- 
1.7.10.4

[085/141] USB: mos7720: fix hardware flow control

[Steven Rostedt]

[-- Attachment #1: 0085-USB-mos7720-fix-hardware-flow-control.patch --]
[-- Type: text/plain, Size: 1189 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit a26f009a070e840fadacb91013b2391ba7ab6cc2 ]

The register access to enable hardware flow control depends on the
device port number and not the port minor number.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/mos7720.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index 98fd1eb..b691404 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -1695,7 +1695,7 @@ static void change_port_settings(struct tty_struct *tty,
 		mos7720_port->shadowMCR |= (UART_MCR_XONANY);
 		/* To set hardware flow control to the specified *
 		 * serial port, in SP1/2_CONTROL_REG             */
-		if (port->number)
+		if (port_number)
 			write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x01);
 		else
 			write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x02);
-- 
1.7.10.4

[086/141] ACPI / video: ignore BIOS initial backlight value for HP m4

[Steven Rostedt]

[-- Attachment #1: 0086-ACPI-video-ignore-BIOS-initial-backlight-value-for-H.patch --]
[-- Type: text/plain, Size: 1245 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alex Hung <alex.hung@canonical.com>

[ Upstream commit fedbe9bc6fd3e14b1ffbb3dac407777ac4a3650c ]

On HP m4 lapops, BIOS reports minimum backlight on boot and
causes backlight to dim completely. This ignores the initial backlight
values and set to max brightness.

References: https://bugs.launchpad.net/bugs/1184501
Cc: All <stable@vger.kernel.org>
Signed-off-by: Alex Hung <alex.hung@canonical.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/acpi/video.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3837739..ecdd2d7 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -447,6 +447,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion m4",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
+		},
+	},
 	{}
 };
 
-- 
1.7.10.4

[087/141] ACPI / video: ignore BIOS initial backlight value for HP Pavilion g6

[Steven Rostedt]

[-- Attachment #1: 0087-ACPI-video-ignore-BIOS-initial-backlight-value-for-H.patch --]
[-- Type: text/plain, Size: 1381 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Ash Willis <ashwillis.kernel@gmail.com>

[ Upstream commit 780a6ec640a3fed671fc2c40e4dd30c03eca3ac3 ]

This patch addresses kernel bug 56661. BIOS reports an incorrect
backlight value, causing the driver to switch off the backlight
completely during startup. This patch ignores the incorrect value from
BIOS.

References: https://bugzilla.kernel.org/show_bug.cgi?id=56661
Signed-off-by: Ash Willis <ashwillis@programmer.net>
Cc: All <stable@vger.kernel.org>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/acpi/video.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index ecdd2d7..69b1677 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -449,6 +449,14 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 	},
 	{
 	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion g6 Notebook PC",
+	 .matches = {
+		 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
+		},
+	},
+	{
+	 .callback = video_ignore_initial_backlight,
 	 .ident = "HP Pavilion m4",
 	 .matches = {
 		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-- 
1.7.10.4

[088/141] ARM: 7742/1: topology: export cpu_topology

[Steven Rostedt]

[-- Attachment #1: 0088-ARM-7742-1-topology-export-cpu_topology.patch --]
[-- Type: text/plain, Size: 1581 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 92bdd3f5eba299b33c2f4407977d6fa2e2a6a0da ]

The cpu_topology symbol is required by any driver using the topology
interfaces, which leads to a couple of build errors:

ERROR: "cpu_topology" [drivers/net/ethernet/sfc/sfc.ko] undefined!
ERROR: "cpu_topology" [drivers/cpufreq/arm_big_little.ko] undefined!
ERROR: "cpu_topology" [drivers/block/mtip32xx/mtip32xx.ko] undefined!

The obvious solution is to export this symbol.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Will Deacon <will.deacon@arm.com>
Cc: stable@vger.kernel.org
Cc: Nicolas Pitre <nico@linaro.org>
Cc: Vincent Guittot <vincent.guittot@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/arm/kernel/topology.c |    2 ++
 1 file changed, 2 insertions(+)

diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index 26c12c6..2d064f9 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -13,6 +13,7 @@
 
 #include <linux/cpu.h>
 #include <linux/cpumask.h>
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/percpu.h>
 #include <linux/node.h>
@@ -225,6 +226,7 @@ static inline void update_cpu_power(unsigned int cpuid, unsigned int mpidr) {}
  * cpu topology table
  */
 struct cputopo_arm cpu_topology[NR_CPUS];
+EXPORT_SYMBOL_GPL(cpu_topology);
 
 const struct cpumask *cpu_coregroup_mask(int cpu)
 {
-- 
1.7.10.4

[089/141] ARM: 7743/1: compressed/head.S: work around new binutils warning

[Steven Rostedt]

[-- Attachment #1: 0089-ARM-7743-1-compressed-head.S-work-around-new-binutil.patch --]
[-- Type: text/plain, Size: 4171 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit da94a829305f1c217cfdf6771cb1faca0917e3b9 ]

In August 2012, Matthew Gretton-Dann checked a change into binutils
labelled "Error on obsolete & warn on deprecated registers", apparently as
part of ARMv8 support. Apparently, this was supposed to emit the message
"Warning: This coprocessor register access is deprecated in ARMv8" when
using certain mcr/mrc instructions and building for ARMv8. Unfortunately,
the message that is actually emitted appears to be '(null)', which is
less helpful in comparison.

Even more unfortunately, this is biting us on every single kernel
build with a new gas, because arch/arm/boot/compressed/head.S and some
other files in that directory are built with -march=all since kernel
commit 80cec14a8 "[ARM] Add -march=all to assembly file build in
arch/arm/boot/compressed" back in v2.6.28.

This patch reverts Russell's nice solution and instead marks the head.S
file to be built for armv7-a, which fortunately lets us build all
instructions in that file without warnings even on the broken binutils.

Without this patch, building anything results in:

arch/arm/boot/compressed/head.S: Assembler messages:
arch/arm/boot/compressed/head.S:565: Warning: (null)
arch/arm/boot/compressed/head.S:676: Warning: (null)
arch/arm/boot/compressed/head.S:698: Warning: (null)
arch/arm/boot/compressed/head.S:722: Warning: (null)
arch/arm/boot/compressed/head.S:726: Warning: (null)
arch/arm/boot/compressed/head.S:957: Warning: (null)
arch/arm/boot/compressed/head.S:996: Warning: (null)
arch/arm/boot/compressed/head.S:997: Warning: (null)
arch/arm/boot/compressed/head.S:1027: Warning: (null)
arch/arm/boot/compressed/head.S:1035: Warning: (null)
arch/arm/boot/compressed/head.S:1046: Warning: (null)
arch/arm/boot/compressed/head.S:1060: Warning: (null)
arch/arm/boot/compressed/head.S:1092: Warning: (null)
arch/arm/boot/compressed/head.S:1094: Warning: (null)
arch/arm/boot/compressed/head.S:1095: Warning: (null)
arch/arm/boot/compressed/head.S:1102: Warning: (null)
arch/arm/boot/compressed/head.S:1134: Warning: (null)

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Cc: stable@vger.kernel.org
Cc: Matthew Gretton-Dann <matthew.gretton-dann@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/arm/boot/compressed/Makefile      |    2 +-
 arch/arm/boot/compressed/head-sa1100.S |    1 +
 arch/arm/boot/compressed/head-shark.S  |    1 +
 arch/arm/boot/compressed/head.S        |    1 +
 4 files changed, 4 insertions(+), 1 deletion(-)

diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index bb26756..90a482b 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -126,7 +126,7 @@ KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
 endif
 
 ccflags-y := -fpic -fno-builtin -I$(obj)
-asflags-y := -Wa,-march=all
+asflags-y := -DZIMAGE
 
 # Supply kernel BSS size to the decompressor via a linker symbol.
 KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
diff --git a/arch/arm/boot/compressed/head-sa1100.S b/arch/arm/boot/compressed/head-sa1100.S
index 6179d94..3115e31 100644
--- a/arch/arm/boot/compressed/head-sa1100.S
+++ b/arch/arm/boot/compressed/head-sa1100.S
@@ -11,6 +11,7 @@
 #include <asm/mach-types.h>
 
 		.section        ".start", "ax"
+		.arch	armv4
 
 __SA1100_start:
 
diff --git a/arch/arm/boot/compressed/head-shark.S b/arch/arm/boot/compressed/head-shark.S
index 089c560..92b5689 100644
--- a/arch/arm/boot/compressed/head-shark.S
+++ b/arch/arm/boot/compressed/head-shark.S
@@ -18,6 +18,7 @@
 	
 		.section	".start", "ax"
 
+		.arch armv4
 		b	__beginning
 	
 __ofw_data:	.long	0				@ the number of memory blocks
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index bc67cbf..a7ae392 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -10,6 +10,7 @@
  */
 #include <linux/linkage.h>
 
+	.arch	armv7-a
 /*
  * Debugging stuff
  *
-- 
1.7.10.4

[090/141] powerpc/eeh: Dont check RTAS token to get PE addr

[Steven Rostedt]

[-- Attachment #1: 0090-powerpc-eeh-Don-t-check-RTAS-token-to-get-PE-addr.patch --]
[-- Type: text/plain, Size: 2679 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Gavin Shan <shangw@linux.vnet.ibm.com>

[ Upstream commit b8b3de224f194005ad87ede6fd022fcc2bef3b1a ]

RTAS token "ibm,get-config-addr-info" or ibm,get-config-addr-info2"
are used to retrieve the PE address according to PCI address, which
made up of domain/bus/slot/function. If we don't have those 2 tokens,
the domain/bus/slot/function would be used as the address for EEH
RTAS operations. Some older f/w might not have those 2 tokens and
that blocks the EEH functionality to be initialized. It was introduced
by commit e2af155c ("powerpc/eeh: pseries platform EEH initialization").

The patch skips the check on those 2 tokens so we can bring up EEH
functionality successfully. And domain/bus/slot/function will be
used as address for EEH RTAS operations.

Cc: <stable@vger.kernel.org> # v3.4+
Reported-by: Robert Knight <knight@princeton.edu>
Signed-off-by: Gavin Shan <shangw@linux.vnet.ibm.com>
Tested-by: Robert Knight <knight@princeton.edu>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/platforms/pseries/eeh_pseries.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index c33360ec..a81ebd3 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -83,7 +83,11 @@ static int pseries_eeh_init(void)
 	ibm_configure_pe		= rtas_token("ibm,configure-pe");
 	ibm_configure_bridge		= rtas_token("ibm,configure-bridge");
 
-	/* necessary sanity check */
+	/*
+	 * Necessary sanity check. We needn't check "get-config-addr-info"
+	 * and its variant since the old firmware probably support address
+	 * of domain/bus/slot/function for EEH RTAS operations.
+	 */
 	if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) {
 		pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n",
 			__func__);
@@ -102,12 +106,6 @@ static int pseries_eeh_init(void)
 		pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n",
 			__func__);
 		return -EINVAL;
-	} else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE &&
-		   ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) {
-		pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and "
-			"<ibm,get-config-addr-info> invalid\n",
-			__func__);
-		return -EINVAL;
 	} else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE &&
 		   ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) {
 		pr_warning("%s: RTAS service <ibm,configure-pe> and "
-- 
1.7.10.4

[091/141] dmaengine: ste_dma40: fix pm runtime ref counting

[Steven Rostedt]

[-- Attachment #1: 0091-dmaengine-ste_dma40-fix-pm-runtime-ref-counting.patch --]
[-- Type: text/plain, Size: 1322 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Rabin Vincent <rabin.vincent@stericsson.com>

[ Upstream commit 9ecb41bd8cf002fd8f3e063db4df81647ddd623c ]

The pm runtime reference counting of the driver is broken for the case
when there is more than one transfer queued, leading to the device being
runtime suspend while active.  Fix it.

Signed-off-by: Rabin Vincent <rabin.vincent@stericsson.com>
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Cc: stable@vger.kernel.org
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/dma/ste_dma40.c |    8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 000d309..6a68d5a 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1393,10 +1393,12 @@ static void dma_tc_handle(struct d40_chan *d40c)
 			return;
 		}
 
-		if (d40_queue_start(d40c) == NULL)
+		if (d40_queue_start(d40c) == NULL) {
 			d40c->busy = false;
-		pm_runtime_mark_last_busy(d40c->base->dev);
-		pm_runtime_put_autosuspend(d40c->base->dev);
+
+			pm_runtime_mark_last_busy(d40c->base->dev);
+			pm_runtime_put_autosuspend(d40c->base->dev);
+		}
 	}
 
 	d40c->pending_tx++;
-- 
1.7.10.4

[092/141] radeon: Fix system hang issue when using KMS with older cards

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0092-radeon-Fix-system-hang-issue-when-using-KMS-with-old.patch --]
[-- Type: text/plain, Size: 12272 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: =?UTF-8?q?Adis=20Hamzi=C4=87?= <adis@hamzadis.com>

[ Upstream commit e49f3959a96dc279860af7e86e6dbcfda50580a5 ]

The current radeon driver initialization routines, when using KMS, are written
so that the IRQ installation routine is called before initializing the WB buffer
and the CP rings. With some ASICs, though, the IRQ routine tries to access the
GFX_INDEX ring causing a call to RREG32 with the value of -1 in
radeon_fence_read. This, in turn causes the system to completely hang with some
cards, requiring a hard reset.

A call stack that can cause such a hang looks like this (using rv515 ASIC for the
example here):
 * rv515_init (rv515.c)
 * radeon_irq_kms_init (radeon_irq_kms.c)
 * drm_irq_install (drm_irq.c)
 * radeon_driver_irq_preinstall_kms (radeon_irq_kms.c)
 * rs600_irq_process (rs600.c)
 * radeon_fence_process - due to SW interrupt (radeon_fence.c)
 * radeon_fence_read (radeon_fence.c)
 * hang due to RREG32(-1)

The patch moves the IRQ installation to the card startup routine, after the ring
has been initialized, but before the IRQ has been set. This fixes the issue, but
requires a check to see if the IRQ is already installed, as is the case in the
system resume codepath.
I have tested the patch on three machines using the rv515, the rv770 and the
evergreen ASIC. They worked without issues.

This seems to be a known issue and has been reported on several bug tracking
sites by various distributions (see links below). Most of reports recommend
booting the system with KMS disabled and then enabling KMS by reloading the
radeon module. For some reason, this was indeed a usable workaround, however,
UMS is now deprecated and disabled by default.

Bug reports:
https://bugzilla.redhat.com/show_bug.cgi?id=845745
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/561789
https://bbs.archlinux.org/viewtopic.php?id=156964

Signed-off-by: Adis Hamzić <adis@hamzadis.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/radeon/evergreen.c |   10 ++++++----
 drivers/gpu/drm/radeon/ni.c        |   10 ++++++----
 drivers/gpu/drm/radeon/r100.c      |    9 ++++++---
 drivers/gpu/drm/radeon/r300.c      |    9 ++++++---
 drivers/gpu/drm/radeon/r420.c      |   10 ++++++----
 drivers/gpu/drm/radeon/r520.c      |    9 ++++++---
 drivers/gpu/drm/radeon/r600.c      |   10 ++++++----
 drivers/gpu/drm/radeon/rs400.c     |    9 ++++++---
 drivers/gpu/drm/radeon/rs600.c     |    9 ++++++---
 drivers/gpu/drm/radeon/rs690.c     |    9 ++++++---
 drivers/gpu/drm/radeon/rv515.c     |    9 ++++++---
 drivers/gpu/drm/radeon/rv770.c     |   10 ++++++----
 drivers/gpu/drm/radeon/si.c        |   10 ++++++----
 13 files changed, 78 insertions(+), 45 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 5cec317..c3173e4 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3221,6 +3221,12 @@ static int evergreen_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -3360,10 +3366,6 @@ int evergreen_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 62ff39f..b55413e 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1298,6 +1298,12 @@ static int cayman_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -1422,10 +1428,6 @@ int cayman_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index b08b5b9..1714fbe 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -4038,6 +4038,12 @@ static int r100_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r100.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -4193,9 +4199,6 @@ int r100_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 646a192..9c96b51 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1382,6 +1382,12 @@ static int r300_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -1516,9 +1522,6 @@ int r300_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index f2f5bf6..e12d8df 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -265,6 +265,12 @@ static int r420_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -411,10 +417,6 @@ int r420_init(struct radeon_device *rdev)
 	if (r) {
 		return r;
 	}
-	r = radeon_irq_kms_init(rdev);
-	if (r) {
-		return r;
-	}
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r) {
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 079d3c5..f06c2e4 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -194,6 +194,12 @@ static int r520_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -297,9 +303,6 @@ int r520_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index d79c639..2fa2642 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2395,6 +2395,12 @@ int r600_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -2537,10 +2543,6 @@ int r600_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 2752f7f..21d2d28 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -417,6 +417,12 @@ static int rs400_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -535,9 +541,6 @@ int rs400_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 78aa835..9a156a5 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -938,6 +938,12 @@ static int rs600_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -1062,9 +1068,6 @@ int rs600_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 3b663fc..c2fc0e0 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -628,6 +628,12 @@ static int rs690_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -753,9 +759,6 @@ int rs690_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index aa8ef49..dd20348 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -386,6 +386,12 @@ static int rv515_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -516,9 +522,6 @@ int rv515_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index ca8ffec..fcd30f7 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -933,6 +933,12 @@ static int rv770_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -1059,10 +1065,6 @@ int rv770_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 2fa541c..d8cc781 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -3757,6 +3757,12 @@ static int si_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = si_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -3898,10 +3904,6 @@ int si_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
-- 
1.7.10.4

[093/141] drm/radeon: dont allow audio on DCE6

[Steven Rostedt]

[-- Attachment #1: 0093-drm-radeon-don-t-allow-audio-on-DCE6.patch --]
[-- Type: text/plain, Size: 2407 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alex Deucher <alexander.deucher@amd.com>

[ Upstream commit 1cbcca302a318499f20a512847c5d6a510c08c35 ]

It's not supported yet.  Fixes display issues when
users force it on.

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/radeon/atombios_encoders.c |   11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 2eb418e..f14ce9a 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -396,6 +396,8 @@ atombios_digital_setup(struct drm_encoder *encoder, int action)
 int
 atombios_get_encoder_mode(struct drm_encoder *encoder)
 {
+	struct drm_device *dev = encoder->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct drm_connector *connector;
 	struct radeon_connector *radeon_connector;
@@ -421,7 +423,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */
 		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-		    radeon_audio)
+		    radeon_audio &&
+		    !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else if (radeon_connector->use_digital)
 			return ATOM_ENCODER_MODE_DVI;
@@ -432,7 +435,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	case DRM_MODE_CONNECTOR_HDMIA:
 	default:
 		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-		    radeon_audio)
+		    radeon_audio &&
+		    !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else
 			return ATOM_ENCODER_MODE_DVI;
@@ -446,7 +450,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 			return ATOM_ENCODER_MODE_DP;
 		else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-			 radeon_audio)
+			 radeon_audio &&
+			 !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else
 			return ATOM_ENCODER_MODE_DVI;
-- 
1.7.10.4

[094/141] ecryptfs: fixed msync to flush data

[Steven Rostedt]

[-- Attachment #1: 0094-ecryptfs-fixed-msync-to-flush-data.patch --]
[-- Type: text/plain, Size: 1248 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Paul Taysom <taysom@chromium.org>

[ Upstream commit c15cddd900e867c5adfb3c79596479dc5975f743 ]

When msync is called on a memory mapped file, that
data is not flushed to the disk.

In Linux, msync calls fsync for the file. For ecryptfs,
fsync just calls the lower level file system's fsync.
Changed the ecryptfs fsync code to call filemap_write_and_wait
before calling the lower level fsync.

Addresses the problem described in http://crbug.com/239536

Signed-off-by: Paul Taysom <taysom@chromium.org>
Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: stable@vger.kernel.org # v3.6+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ecryptfs/file.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index d45ba45..4f9a25e 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -296,6 +296,7 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
 static int
 ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
+	filemap_write_and_wait(file->f_mapping);
 	return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
 }
 
-- 
1.7.10.4

[095/141] eCryptfs: Check return of filemap_write_and_wait during fsync

[Steven Rostedt]

[-- Attachment #1: 0095-eCryptfs-Check-return-of-filemap_write_and_wait-duri.patch --]
[-- Type: text/plain, Size: 1097 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Tyler Hicks <tyhicks@canonical.com>

[ Upstream commit bc5abcf7e411b889f73ea2a90439071a0f451011 ]

Error out of ecryptfs_fsync() if filemap_write_and_wait() fails.

Signed-off-by: Tyler Hicks <tyhicks@canonical.com>
Cc: Paul Taysom <taysom@chromium.org>
Cc: Olof Johansson <olofj@chromium.org>
Cc: stable@vger.kernel.org # v3.6+
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ecryptfs/file.c |    7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index 4f9a25e..9d5dd5c 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -296,7 +296,12 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
 static int
 ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
-	filemap_write_and_wait(file->f_mapping);
+	int rc;
+
+	rc = filemap_write_and_wait(file->f_mapping);
+	if (rc)
+		return rc;
+
 	return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
 }
 
-- 
1.7.10.4

[096/141] hwmon: (adm1021) Strengthen chip detection for ADM1021, LM84 and MAX1617

[Steven Rostedt]

[-- Attachment #1: 0096-hwmon-adm1021-Strengthen-chip-detection-for-ADM1021-.patch --]
[-- Type: text/plain, Size: 3389 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Guenter Roeck <linux@roeck-us.net>

[ Upstream commit 591bfcfc334a003ba31c0deff03b22e73349939b ]

On a system with both MAX1617 and JC42 sensors, JC42 sensors can be misdetected
as LM84. Strengthen detection sufficiently enough to avoid this misdetection.
Also improve detection for ADM1021.

Modeled after chip detection code in sensors-detect command.

Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Tested-by: Jean Delvare <khali@linux-fr.org>
Acked-by: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/hwmon/adm1021.c |   58 ++++++++++++++++++++++++++++++++++++++++-------
 1 file changed, 50 insertions(+), 8 deletions(-)

diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
index fd1d1b1..f9df316 100644
--- a/drivers/hwmon/adm1021.c
+++ b/drivers/hwmon/adm1021.c
@@ -332,26 +332,68 @@ static int adm1021_detect(struct i2c_client *client,
 	man_id = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
 	dev_id = i2c_smbus_read_byte_data(client, ADM1021_REG_DEV_ID);
 
+	if (man_id < 0 || dev_id < 0)
+		return -ENODEV;
+
 	if (man_id == 0x4d && dev_id == 0x01)
 		type_name = "max1617a";
 	else if (man_id == 0x41) {
 		if ((dev_id & 0xF0) == 0x30)
 			type_name = "adm1023";
-		else
+		else if ((dev_id & 0xF0) == 0x00)
 			type_name = "adm1021";
+		else
+			return -ENODEV;
 	} else if (man_id == 0x49)
 		type_name = "thmc10";
 	else if (man_id == 0x23)
 		type_name = "gl523sm";
 	else if (man_id == 0x54)
 		type_name = "mc1066";
-	/* LM84 Mfr ID in a different place, and it has more unused bits */
-	else if (conv_rate == 0x00
-		 && (config & 0x7F) == 0x00
-		 && (status & 0xAB) == 0x00)
-		type_name = "lm84";
-	else
-		type_name = "max1617";
+	else {
+		int lte, rte, lhi, rhi, llo, rlo;
+
+		/* extra checks for LM84 and MAX1617 to avoid misdetections */
+
+		llo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(0));
+		rlo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(1));
+
+		/* fail if any of the additional register reads failed */
+		if (llo < 0 || rlo < 0)
+			return -ENODEV;
+
+		lte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(0));
+		rte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(1));
+		lhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(0));
+		rhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(1));
+
+		/*
+		 * Fail for negative temperatures and negative high limits.
+		 * This check also catches read errors on the tested registers.
+		 */
+		if ((s8)lte < 0 || (s8)rte < 0 || (s8)lhi < 0 || (s8)rhi < 0)
+			return -ENODEV;
+
+		/* fail if all registers hold the same value */
+		if (lte == rte && lte == lhi && lte == rhi && lte == llo
+		    && lte == rlo)
+			return -ENODEV;
+
+		/*
+		 * LM84 Mfr ID is in a different place,
+		 * and it has more unused bits.
+		 */
+		if (conv_rate == 0x00
+		    && (config & 0x7F) == 0x00
+		    && (status & 0xAB) == 0x00) {
+			type_name = "lm84";
+		} else {
+			/* fail if low limits are larger than high limits */
+			if ((s8)llo > lhi || (s8)rlo > rhi)
+				return -ENODEV;
+			type_name = "max1617";
+		}
+	}
 
 	pr_debug("adm1021: Detected chip %s at adapter %d, address 0x%02x.\n",
 		 type_name, i2c_adapter_id(adapter), client->addr);
-- 
1.7.10.4

[097/141] drm/mgag200: Add missing write to index before accessing data register

[Steven Rostedt]

[-- Attachment #1: 0097-drm-mgag200-Add-missing-write-to-index-before-access.patch --]
[-- Type: text/plain, Size: 1388 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Christopher Harvey <charvey@matrox.com>

[ Upstream commit 91f8f105f2b82b4a38dee2d74760bc39d40ec42c ]

This is a bug fix for some versions of g200se cards while doing
mode-setting.

Signed-off-by: Christopher Harvey <charvey@matrox.com>
Tested-by: Julia Lemire <jlemire@matrox.com>
Acked-by: Julia Lemire <jlemire@matrox.com>
Cc: stable@vger.kernel.org
Signed-off-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/mgag200/mgag200_mode.c |    9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 85ef6cc..64e24f6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1042,13 +1042,14 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
 			else
 				hi_pri_lvl = 5;
 
-			WREG8(0x1fde, 0x06);
-			WREG8(0x1fdf, hi_pri_lvl);
+			WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
+			WREG8(MGAREG_CRTCEXT_DATA, hi_pri_lvl);
 		} else {
+			WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
 			if (mdev->reg_1e24 >= 0x01)
-				WREG8(0x1fdf, 0x03);
+				WREG8(MGAREG_CRTCEXT_DATA, 0x03);
 			else
-				WREG8(0x1fdf, 0x04);
+				WREG8(MGAREG_CRTCEXT_DATA, 0x04);
 		}
 	}
 	return 0;
-- 
1.7.10.4

[098/141] drm: fix a use-after-free when GPU acceleration disabled

[Steven Rostedt]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: 0098-drm-fix-a-use-after-free-when-GPU-acceleration-disab.patch --]
[-- Type: text/plain, Size: 3676 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Huacai Chen <chenhc@lemote.com>

[ Upstream commit b7ea85a4fed37835eec78a7be3039c8dc22b8178 ]

When GPU acceleration is disabled, drm_vblank_cleanup() will free the
vblank-related data, such as vblank_refcount, vblank_inmodeset, etc.
But we found that drm_vblank_post_modeset() may be called after the
cleanup, which use vblank_refcount and vblank_inmodeset. And this will
cause a kernel panic.

Fix this by return immediately if dev->num_crtcs is zero. This is the
same thing that drm_vblank_pre_modeset() does.

Call trace of a drm_vblank_post_modeset() after drm_vblank_cleanup():
[   62.628906] [<ffffffff804868d0>] drm_vblank_post_modeset+0x34/0xb4
[   62.628906] [<ffffffff804c7008>] atombios_crtc_dpms+0xb4/0x174
[   62.628906] [<ffffffff804c70e0>] atombios_crtc_commit+0x18/0x38
[   62.628906] [<ffffffff8047f038>] drm_crtc_helper_set_mode+0x304/0x3cc
[   62.628906] [<ffffffff8047f92c>] drm_crtc_helper_set_config+0x6d8/0x988
[   62.628906] [<ffffffff8047dd40>] drm_fb_helper_set_par+0x94/0x104
[   62.628906] [<ffffffff80439d14>] fbcon_init+0x424/0x57c
[   62.628906] [<ffffffff8046a638>] visual_init+0xb8/0x118
[   62.628906] [<ffffffff8046b9f8>] take_over_console+0x238/0x384
[   62.628906] [<ffffffff80436df8>] fbcon_takeover+0x7c/0xdc
[   62.628906] [<ffffffff8024fa20>] notifier_call_chain+0x44/0x94
[   62.628906] [<ffffffff8024fcbc>] __blocking_notifier_call_chain+0x48/0x68
[   62.628906] [<ffffffff8042d990>] register_framebuffer+0x228/0x260
[   62.628906] [<ffffffff8047e010>] drm_fb_helper_single_fb_probe+0x260/0x314
[   62.628906] [<ffffffff8047e2c4>] drm_fb_helper_initial_config+0x200/0x234
[   62.628906] [<ffffffff804e5560>] radeon_fbdev_init+0xd4/0xf4
[   62.628906] [<ffffffff804e0e08>] radeon_modeset_init+0x9bc/0xa18
[   62.628906] [<ffffffff804bfc14>] radeon_driver_load_kms+0xdc/0x12c
[   62.628906] [<ffffffff8048b548>] drm_get_pci_dev+0x148/0x238
[   62.628906] [<ffffffff80423564>] local_pci_probe+0x5c/0xd0
[   62.628906] [<ffffffff80241ac4>] work_for_cpu_fn+0x1c/0x30
[   62.628906] [<ffffffff802427c8>] process_one_work+0x274/0x3bc
[   62.628906] [<ffffffff80242934>] process_scheduled_works+0x24/0x44
[   62.628906] [<ffffffff8024515c>] worker_thread+0x31c/0x3f4
[   62.628906] [<ffffffff802497a8>] kthread+0x88/0x90
[   62.628906] [<ffffffff80206794>] kernel_thread_helper+0x10/0x18

Signed-off-by: Huacai Chen <chenhc@lemote.com>
Signed-off-by: Binbin Zhou <zhoubb@lemote.com>
Cc: <stable@vger.kernel.org>
Reviewed-by: Michel Dänzer <michel.daenzer@amd.com>
Acked-by: Paul Menzel <paulepanter@users.sourceforge.net>
Signed-off-by: Dave Airlie <airlied@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/drm_irq.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 03f16f3..275bc82 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -980,7 +980,7 @@ EXPORT_SYMBOL(drm_vblank_off);
  */
 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
 {
-	/* vblank is not initialized (IRQ not installed ?) */
+	/* vblank is not initialized (IRQ not installed ?), or has been freed */
 	if (!dev->num_crtcs)
 		return;
 	/*
@@ -1002,6 +1002,10 @@ void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
 {
 	unsigned long irqflags;
 
+	/* vblank is not initialized (IRQ not installed ?), or has been freed */
+	if (!dev->num_crtcs)
+		return;
+
 	if (dev->vblank_inmodeset[crtc]) {
 		spin_lock_irqsave(&dev->vbl_lock, irqflags);
 		dev->vblank_disable_allowed = 1;
-- 
1.7.10.4

[099/141] drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC.

[Steven Rostedt]

[-- Attachment #1: 0099-drm-i915-sdvo-Use-intel_sdvo-ddc-instead-of-intel_sd.patch --]
[-- Type: text/plain, Size: 1604 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Egbert Eich <eich@suse.de>

[ Upstream commit 53d3b4d7778daf15900867336c85d3f8dd70600c ]

In intel_sdvo_get_lvds_modes() the wrong i2c adapter record is used
for DDC. Thus the code will always have to rely on a LVDS panel
mode supplied by VBT.
In most cases this succeeds, so this didn't get detected for quite
a while.

This regression seems to have been introduced in

commit f899fc64cda8569d0529452aafc0da31c042df2e
Author: Chris Wilson <chris@chris-wilson.co.uk>
Date:   Tue Jul 20 15:44:45 2010 -0700

    drm/i915: use GMBUS to manage i2c links

Signed-off-by: Egbert Eich <eich@suse.de>
Cc: stable@vger.kernel.org
Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
[danvet: Add note about which commit likely introduced this issue.]
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---
 drivers/gpu/drm/i915/intel_sdvo.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index d554f64..95c0433 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1603,7 +1603,7 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 	 * Assume that the preferred modes are
 	 * arranged in priority order.
 	 */
-	intel_ddc_get_modes(connector, intel_sdvo->i2c);
+	intel_ddc_get_modes(connector, &intel_sdvo->ddc);
 	if (list_empty(&connector->probed_modes) == false)
 		goto end;
 
-- 
1.7.10.4

[100/141] drm/i915: no lvds quirk for hp t5740

[Steven Rostedt]

[-- Attachment #1: 0100-drm-i915-no-lvds-quirk-for-hp-t5740.patch --]
[-- Type: text/plain, Size: 1425 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Ben Mesman <ben@bnc.nl>

[ Upstream commit 45a211d75137b1ac869a8a758a6667f15827a115 ]

Last year, a patch was made for the "HP t5740e Thin Client" (see
http://lists.freedesktop.org/archives/dri-devel/2012-May/023245.html).
This device reports an lvds panel, but does not really have one.

The predecessor of this device is the "hp t5740", which also does not have
an lvds panel. This patch will add the same quirk for this device.

Signed-off-by: Ben Mesman <ben@bnc.nl>
Cc: stable@vger.kernel.org
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/i915/intel_lvds.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index c78c988..32b6b78 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -742,10 +742,10 @@ static const struct dmi_system_id intel_no_lvds[] = {
 	},
 	{
 		.callback = intel_no_lvds_dmi_callback,
-		.ident = "Hewlett-Packard HP t5740e Thin Client",
+		.ident = "Hewlett-Packard HP t5740",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP t5740e Thin Client"),
+			DMI_MATCH(DMI_PRODUCT_NAME, " t5740"),
 		},
 	},
 	{
-- 
1.7.10.4

[101/141] usb: dwc3: gadget: free trb pool only from epnum 2

[Steven Rostedt]

[-- Attachment #1: 0101-usb-dwc3-gadget-free-trb-pool-only-from-epnum-2.patch --]
[-- Type: text/plain, Size: 1755 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: George Cherian <george.cherian@ti.com>

[ Upstream commit 5bf8fae33d14cc5c3c53a926f9079f92c8b082b0 ]

we never allocate a TRB pool for physical endpoints
0 and 1 so trying to free it (a invalid TRB pool pointer)
will lead us in a warning while removing dwc3.ko module.

In order to fix the situation, all we have to do is skip
dwc3_free_trb_pool() for physical endpoints 0 and 1 just
as we while deleting endpoints from the endpoints list.

Cc: stable@vger.kernel.org
Signed-off-by: George Cherian <george.cherian@ti.com>
Signed-off-by: Felipe Balbi <balbi@ti.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/dwc3/gadget.c |   17 ++++++++++++++---
 1 file changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index eb0fd10..8212dbb 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1650,10 +1650,21 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc)
 
 	for (epnum = 0; epnum < DWC3_ENDPOINTS_NUM; epnum++) {
 		dep = dwc->eps[epnum];
-		dwc3_free_trb_pool(dep);
-
-		if (epnum != 0 && epnum != 1)
+		if (!dep)
+			continue;
+		/*
+		 * Physical endpoints 0 and 1 are special; they form the
+		 * bi-directional USB endpoint 0.
+		 *
+		 * For those two physical endpoints, we don't allocate a TRB
+		 * pool nor do we add them the endpoints list. Due to that, we
+		 * shouldn't do these two operations otherwise we would end up
+		 * with all sorts of bugs when removing dwc3.ko.
+		 */
+		if (epnum != 0 && epnum != 1) {
+			dwc3_free_trb_pool(dep);
 			list_del(&dep->endpoint.ep_list);
+		}
 
 		kfree(dep);
 	}
-- 
1.7.10.4

[102/141] drm/gma500: Increase max resolution for mode setting

[Steven Rostedt]

[-- Attachment #1: 0102-drm-gma500-Increase-max-resolution-for-mode-setting.patch --]
[-- Type: text/plain, Size: 1188 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

[ Upstream commit cbbd379aa43890f36da934f5af619d2fb8ec3d87 ]

By having a higher max resolution we can now set up a virtual
framebuffer that spans several monitors. 4096 should be ok since we're
gen 3 or higher and should be enough for most dual head setups.

Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/gma500/framebuffer.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 5732b57..71a4b61 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -793,8 +793,8 @@ void psb_modeset_init(struct drm_device *dev)
 	for (i = 0; i < dev_priv->num_pipe; i++)
 		psb_intel_crtc_init(dev, i, mode_dev);
 
-	dev->mode_config.max_width = 2048;
-	dev->mode_config.max_height = 2048;
+	dev->mode_config.max_width = 4096;
+	dev->mode_config.max_height = 4096;
 
 	psb_setup_outputs(dev);
 
-- 
1.7.10.4

[103/141] powerpc: Set default VGA device

[Steven Rostedt]

[-- Attachment #1: 0103-powerpc-Set-default-VGA-device.patch --]
[-- Type: text/plain, Size: 1800 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Brian King <brking@linux.vnet.ibm.com>

[ Upstream commit c2e1d84523ad2a19e5be08c1f01999cc9e82652e ]

Add a PCI quirk for VGA devices on Power to set the default VGA device.
Ensures a default VGA is always set if a graphics adapter is present,
even if firmware did not initialize it. If more than one graphics
adapter is present, ensure the one initialized by firmware is set
as the default VGA device. This ensures that X autoconfiguration
will work.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/kernel/pci-common.c |   13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 2aa04f2..51ecf87 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -30,6 +30,7 @@
 #include <linux/irq.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/vgaarb.h>
 
 #include <asm/processor.h>
 #include <asm/io.h>
@@ -1698,3 +1699,15 @@ static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MOTOROLA, PCI_ANY_ID, fixup_hide_host_resource_fsl);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, fixup_hide_host_resource_fsl);
+
+static void fixup_vga(struct pci_dev *pdev)
+{
+	u16 cmd;
+
+	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
+	if ((cmd & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) || !vga_default_device())
+		vga_set_default_device(pdev);
+
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+			      PCI_CLASS_DISPLAY_VGA, 8, fixup_vga);
-- 
1.7.10.4

[104/141] powerpc/pseries: Force 32 bit MSIs for devices that require it

[Steven Rostedt]

[-- Attachment #1: 0104-powerpc-pseries-Force-32-bit-MSIs-for-devices-that-r.patch --]
[-- Type: text/plain, Size: 3027 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Brian King <brking@linux.vnet.ibm.com>

[ Upstream commit e61133dda480062d221f09e4fc18f66763f8ecd0 ]

The following patch implements a new PAPR change which allows
the OS to force the use of 32 bit MSIs, regardless of what
the PCI capabilities indicate. This is required for some
devices that advertise support for 64 bit MSIs but don't
actually support them.

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/include/asm/pci-bridge.h |    2 ++
 arch/powerpc/platforms/pseries/msi.c  |   21 ++++++++++++++++++---
 2 files changed, 20 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 78326de..271af40 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -154,6 +154,8 @@ struct pci_dn {
 
 	int	pci_ext_config_space;	/* for pci devices */
 
+	int	force_32bit_msi:1;
+
 	struct	pci_dev *pcidev;	/* back-pointer to the pci device */
 #ifdef CONFIG_EEH
 	struct eeh_dev *edev;		/* eeh device */
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 109fdb7..5c9aa89 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -24,6 +24,7 @@ static int query_token, change_token;
 #define RTAS_RESET_FN		2
 #define RTAS_CHANGE_MSI_FN	3
 #define RTAS_CHANGE_MSIX_FN	4
+#define RTAS_CHANGE_32MSI_FN	5
 
 static struct pci_dn *get_pdn(struct pci_dev *pdev)
 {
@@ -58,7 +59,8 @@ static int rtas_change_msi(struct pci_dn *pdn, u32 func, u32 num_irqs)
 
 	seq_num = 1;
 	do {
-		if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN)
+		if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN ||
+		    func == RTAS_CHANGE_32MSI_FN)
 			rc = rtas_call(change_token, 6, 4, rtas_ret, addr,
 					BUID_HI(buid), BUID_LO(buid),
 					func, num_irqs, seq_num);
@@ -407,9 +409,12 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 	 * return MSI-Xs.
 	 */
 	if (type == PCI_CAP_ID_MSI) {
-		rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec);
+		if (pdn->force_32bit_msi)
+			rc = rtas_change_msi(pdn, RTAS_CHANGE_32MSI_FN, nvec);
+		else
+			rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec);
 
-		if (rc < 0) {
+		if (rc < 0 && !pdn->force_32bit_msi) {
 			pr_debug("rtas_msi: trying the old firmware call.\n");
 			rc = rtas_change_msi(pdn, RTAS_CHANGE_FN, nvec);
 		}
@@ -489,3 +494,13 @@ static int rtas_msi_init(void)
 	return 0;
 }
 arch_initcall(rtas_msi_init);
+
+static void quirk_radeon(struct pci_dev *dev)
+{
+	struct pci_dn *pdn = get_pdn(dev);
+
+	if (pdn)
+		pdn->force_32bit_msi = 1;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x68f2, quirk_radeon);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0xaa68, quirk_radeon);
-- 
1.7.10.4

[105/141] powerpc/pseries: Perform proper max_bus_speed detection

[Steven Rostedt]

[-- Attachment #1: 0105-powerpc-pseries-Perform-proper-max_bus_speed-detecti.patch --]
[-- Type: text/plain, Size: 4985 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>

[ Upstream commit d82fb31abc46620b7c22758c75707069f2763646 ]

On pseries machines the detection for max_bus_speed should be done
through an OpenFirmware property. This patch adds a function to perform
this detection and a hook to perform dynamic adding of the function only
for pseries. This is done by overwriting the weak
pcibios_root_bridge_prepare function which is called by
pci_create_root_bus().

From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/include/asm/machdep.h       |    3 ++
 arch/powerpc/kernel/pci-common.c         |    8 +++++
 arch/powerpc/platforms/pseries/pci.c     |   53 ++++++++++++++++++++++++++++++
 arch/powerpc/platforms/pseries/pseries.h |    4 +++
 arch/powerpc/platforms/pseries/setup.c   |    3 ++
 5 files changed, 71 insertions(+)

diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 42ce570..fd23013 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -29,6 +29,7 @@ struct rtc_time;
 struct file;
 struct pci_controller;
 struct kimage;
+struct pci_host_bridge;
 
 struct machdep_calls {
 	char		*name;
@@ -107,6 +108,8 @@ struct machdep_calls {
 	void		(*pcibios_fixup)(void);
 	int		(*pci_probe_mode)(struct pci_bus *);
 	void		(*pci_irq_fixup)(struct pci_dev *dev);
+	int		(*pcibios_root_bridge_prepare)(struct pci_host_bridge
+				*bridge);
 
 	/* To setup PHBs when using automatic OF platform driver for PCI */
 	int		(*pci_setup_phb)(struct pci_controller *host);
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 51ecf87..6fe4341 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -826,6 +826,14 @@ int pci_proc_domain(struct pci_bus *bus)
 	return 1;
 }
 
+int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
+{
+	if (ppc_md.pcibios_root_bridge_prepare)
+		return ppc_md.pcibios_root_bridge_prepare(bridge);
+
+	return 0;
+}
+
 /* This header fixup will do the resource fixup for all devices as they are
  * probed, but not for bridge ranges
  */
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index 2c6ded2..7f6f556 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -107,3 +107,56 @@ static void fixup_winbond_82c105(struct pci_dev* dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
 			 fixup_winbond_82c105);
+
+int pseries_root_bridge_prepare(struct pci_host_bridge *bridge)
+{
+	struct device_node *dn, *pdn;
+	struct pci_bus *bus;
+	const uint32_t *pcie_link_speed_stats;
+
+	bus = bridge->bus;
+
+	dn = pcibios_get_phb_of_node(bus);
+	if (!dn)
+		return 0;
+
+	for (pdn = dn; pdn != NULL; pdn = of_get_next_parent(pdn)) {
+		pcie_link_speed_stats = (const uint32_t *) of_get_property(pdn,
+			"ibm,pcie-link-speed-stats", NULL);
+		if (pcie_link_speed_stats)
+			break;
+	}
+
+	of_node_put(pdn);
+
+	if (!pcie_link_speed_stats) {
+		pr_err("no ibm,pcie-link-speed-stats property\n");
+		return 0;
+	}
+
+	switch (pcie_link_speed_stats[0]) {
+	case 0x01:
+		bus->max_bus_speed = PCIE_SPEED_2_5GT;
+		break;
+	case 0x02:
+		bus->max_bus_speed = PCIE_SPEED_5_0GT;
+		break;
+	default:
+		bus->max_bus_speed = PCI_SPEED_UNKNOWN;
+		break;
+	}
+
+	switch (pcie_link_speed_stats[1]) {
+	case 0x01:
+		bus->cur_bus_speed = PCIE_SPEED_2_5GT;
+		break;
+	case 0x02:
+		bus->cur_bus_speed = PCIE_SPEED_5_0GT;
+		break;
+	default:
+		bus->cur_bus_speed = PCI_SPEED_UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 9a3dda0..b79393d 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -60,4 +60,8 @@ extern int dlpar_detach_node(struct device_node *);
 /* Snooze Delay, pseries_idle */
 DECLARE_PER_CPU(long, smt_snooze_delay);
 
+/* PCI root bridge prepare function override for pseries */
+struct pci_host_bridge;
+int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
+
 #endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 51ecac9..5f01342 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -404,6 +404,9 @@ static void __init pSeries_setup_arch(void)
 		ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
 	else
 		ppc_md.enable_pmcs = power4_enable_pmcs;
+
+	ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare;
+
 }
 
 static int __init pSeries_init_panel(void)
-- 
1.7.10.4

[106/141] radeon: use max_bus_speed to activate gen2 speeds

[Steven Rostedt]

[-- Attachment #1: 0106-radeon-use-max_bus_speed-to-activate-gen2-speeds.patch --]
[-- Type: text/plain, Size: 3580 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>

[ Upstream commit 7e0e41963740525af702bb23edede8ae9afc4ac0 ]

radeon currently uses a drm function to get the speed capabilities for
the bus, drm_pcie_get_speed_cap_mask. However, this is a non-standard
method of performing this detection and this patch changes it to use
the max_bus_speed attribute.

From: Lucas Kannebley Tavares <lucaskt@linux.vnet.ibm.com>
Signed-off-by: Kleber Sacilotto de Souza <klebers@linux.vnet.ibm.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/radeon/evergreen.c |   10 +++-------
 drivers/gpu/drm/radeon/r600.c      |    9 ++-------
 drivers/gpu/drm/radeon/rv770.c     |    9 ++-------
 3 files changed, 7 insertions(+), 21 deletions(-)

diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index c3173e4..f3e0e8e 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3425,8 +3425,7 @@ void evergreen_fini(struct radeon_device *rdev)
 
 void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
 {
-	u32 link_width_cntl, speed_cntl, mask;
-	int ret;
+	u32 link_width_cntl, speed_cntl;
 
 	if (radeon_pcie_gen2 == 0)
 		return;
@@ -3441,11 +3440,8 @@ void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
 	if (ASIC_IS_X2(rdev))
 		return;
 
-	ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
-	if (ret != 0)
-		return;
-
-	if (!(mask & DRM_PCIE_SPEED_50))
+	if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+		(rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
 		return;
 
 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index 2fa2642..4c6b4156 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -3683,8 +3683,6 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
 {
 	u32 link_width_cntl, lanes, speed_cntl, training_cntl, tmp;
 	u16 link_cntl2;
-	u32 mask;
-	int ret;
 
 	if (radeon_pcie_gen2 == 0)
 		return;
@@ -3703,11 +3701,8 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
 	if (rdev->family <= CHIP_R600)
 		return;
 
-	ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
-	if (ret != 0)
-		return;
-
-	if (!(mask & DRM_PCIE_SPEED_50))
+	if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+		(rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
 		return;
 
 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index fcd30f7..a4c4dc6 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -1114,8 +1114,6 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
 {
 	u32 link_width_cntl, lanes, speed_cntl, tmp;
 	u16 link_cntl2;
-	u32 mask;
-	int ret;
 
 	if (radeon_pcie_gen2 == 0)
 		return;
@@ -1130,11 +1128,8 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
 	if (ASIC_IS_X2(rdev))
 		return;
 
-	ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
-	if (ret != 0)
-		return;
-
-	if (!(mask & DRM_PCIE_SPEED_50))
+	if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+		(rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
 		return;
 
 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
-- 
1.7.10.4

[107/141] iio: frequency: ad4350: Fix bug / typo in mask

[Steven Rostedt]

[-- Attachment #1: 0107-iio-frequency-ad4350-Fix-bug-typo-in-mask.patch --]
[-- Type: text/plain, Size: 1208 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Michael Hennerich <michael.hennerich@analog.com>

[ Upstream commit 2eb3a81eef0510511a3211bb3da560f446a8c8de ]

Signed-off-by: Michael Hennerich <michael.hennerich@analog.com>
Reviewed-by: Lars-Peter Clausen <lars@metafoo.de>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/iio/frequency/adf4350.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index e35bb8f..3e2a01c 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -212,7 +212,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq)
 		(pdata->r2_user_settings & (ADF4350_REG2_PD_POLARITY_POS |
 		ADF4350_REG2_LDP_6ns | ADF4350_REG2_LDF_INT_N |
 		ADF4350_REG2_CHARGE_PUMP_CURR_uA(5000) |
-		ADF4350_REG2_MUXOUT(0x7) | ADF4350_REG2_NOISE_MODE(0x9)));
+		ADF4350_REG2_MUXOUT(0x7) | ADF4350_REG2_NOISE_MODE(0x3)));
 
 	st->regs[ADF4350_REG3] = pdata->r3_user_settings &
 				 (ADF4350_REG3_12BIT_CLKDIV(0xFFF) |
-- 
1.7.10.4

[108/141] USB: serial: add wait_until_sent operation

[Steven Rostedt]

[-- Attachment #1: 0108-USB-serial-add-wait_until_sent-operation.patch --]
[-- Type: text/plain, Size: 2376 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 0693196fe7bbb5e6cafd255dfce91ff6d10bc18f ]

Add wait_until_sent operation which can be used to wait for hardware
buffers to drain.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/usb-serial.c |   17 +++++++++++++++++
 include/linux/usb/serial.h      |    1 +
 2 files changed, 18 insertions(+)

diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 5f38894..390da63 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -377,6 +377,22 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
 	return port->serial->type->chars_in_buffer(tty);
 }
 
+static void serial_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct usb_serial *serial = port->serial;
+
+	dev_dbg(tty->dev, "%s\n", __func__);
+
+	if (!port->serial->type->wait_until_sent)
+		return;
+
+	mutex_lock(&serial->disc_mutex);
+	if (!serial->disconnected)
+		port->serial->type->wait_until_sent(tty, timeout);
+	mutex_unlock(&serial->disc_mutex);
+}
+
 static void serial_throttle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
@@ -1200,6 +1216,7 @@ static const struct tty_operations serial_ops = {
 	.unthrottle =		serial_unthrottle,
 	.break_ctl =		serial_break,
 	.chars_in_buffer =	serial_chars_in_buffer,
+	.wait_until_sent =	serial_wait_until_sent,
 	.tiocmget =		serial_tiocmget,
 	.tiocmset =		serial_tiocmset,
 	.get_icount =		serial_get_icount,
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 0b61f01..95527e4 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -267,6 +267,7 @@ struct usb_serial_driver {
 			struct usb_serial_port *port, struct ktermios *old);
 	void (*break_ctl)(struct tty_struct *tty, int break_state);
 	int  (*chars_in_buffer)(struct tty_struct *tty);
+	void (*wait_until_sent)(struct tty_struct *tty, long timeout);
 	void (*throttle)(struct tty_struct *tty);
 	void (*unthrottle)(struct tty_struct *tty);
 	int  (*tiocmget)(struct tty_struct *tty);
-- 
1.7.10.4

[109/141] USB: serial: add generic wait_until_sent implementation

[Steven Rostedt]

[-- Attachment #1: 0109-USB-serial-add-generic-wait_until_sent-implementatio.patch --]
[-- Type: text/plain, Size: 3926 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit dcf0105039660e951dfea348d317043d17988dfc ]

Add generic wait_until_sent implementation which polls for empty
hardware buffers using the new port-operation tx_empty.

The generic implementation will be used for all sub-drivers that
implement tx_empty but does not define wait_until_sent.

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/generic.c    |   31 +++++++++++++++++++++++++++++++
 drivers/usb/serial/usb-serial.c |    2 ++
 include/linux/usb/serial.h      |    3 +++
 3 files changed, 36 insertions(+)

diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 9b026bf..3b59dd8 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -267,6 +267,37 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
 	return chars;
 }
 
+void usb_serial_generic_wait_until_sent(struct tty_struct *tty, long timeout)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	unsigned int bps;
+	unsigned long period;
+	unsigned long expire;
+
+	bps = tty_get_baud_rate(tty);
+	if (!bps)
+		bps = 9600;	/* B0 */
+	/*
+	 * Use a poll-period of roughly the time it takes to send one
+	 * character or at least one jiffy.
+	 */
+	period = max_t(unsigned long, (10 * HZ / bps), 1);
+	period = min_t(unsigned long, period, timeout);
+
+	dev_dbg(&port->dev, "%s - timeout = %u ms, period = %u ms\n",
+					__func__, jiffies_to_msecs(timeout),
+					jiffies_to_msecs(period));
+	expire = jiffies + timeout;
+	while (!port->serial->type->tx_empty(port)) {
+		schedule_timeout_interruptible(period);
+		if (signal_pending(current))
+			break;
+		if (time_after(jiffies, expire))
+			break;
+	}
+}
+EXPORT_SYMBOL_GPL(usb_serial_generic_wait_until_sent);
+
 static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
 						int index, gfp_t mem_flags)
 {
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 390da63..ac03c58 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -1349,6 +1349,8 @@ static void fixup_generic(struct usb_serial_driver *device)
 	set_to_generic_if_null(device, close);
 	set_to_generic_if_null(device, write_room);
 	set_to_generic_if_null(device, chars_in_buffer);
+	if (device->tx_empty)
+		set_to_generic_if_null(device, wait_until_sent);
 	set_to_generic_if_null(device, read_bulk_callback);
 	set_to_generic_if_null(device, write_bulk_callback);
 	set_to_generic_if_null(device, disconnect);
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 95527e4..f0950dc 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -268,6 +268,7 @@ struct usb_serial_driver {
 	void (*break_ctl)(struct tty_struct *tty, int break_state);
 	int  (*chars_in_buffer)(struct tty_struct *tty);
 	void (*wait_until_sent)(struct tty_struct *tty, long timeout);
+	bool (*tx_empty)(struct usb_serial_port *port);
 	void (*throttle)(struct tty_struct *tty);
 	void (*unthrottle)(struct tty_struct *tty);
 	int  (*tiocmget)(struct tty_struct *tty);
@@ -330,6 +331,8 @@ extern void usb_serial_generic_close(struct usb_serial_port *port);
 extern int usb_serial_generic_resume(struct usb_serial *serial);
 extern int usb_serial_generic_write_room(struct tty_struct *tty);
 extern int usb_serial_generic_chars_in_buffer(struct tty_struct *tty);
+extern void usb_serial_generic_wait_until_sent(struct tty_struct *tty,
+								long timeout);
 extern void usb_serial_generic_read_bulk_callback(struct urb *urb);
 extern void usb_serial_generic_write_bulk_callback(struct urb *urb);
 extern void usb_serial_generic_throttle(struct tty_struct *tty);
-- 
1.7.10.4

[110/141] USB: io_ti: fix chars_in_buffer overhead

[Steven Rostedt]

[-- Attachment #1: 0110-USB-io_ti-fix-chars_in_buffer-overhead.patch --]
[-- Type: text/plain, Size: 2126 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit b16634adce951a7371be931487034f7365971ed0 ]

Use the new generic usb-serial wait_until_sent implementation to wait
for hardware buffers to drain.

This removes the need to check the hardware buffers in chars_in_buffer
and thus removes the overhead introduced by commit 263e1f9f ("USB:
io_ti: query hardware-buffer status in chars_in_buffer") without
breaking tty_wait_until_sent (used by, for example, tcdrain, tcsendbreak
and close).

Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/io_ti.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index d2b6008..93cf729 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2163,6 +2163,18 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	return chars;
 }
 
+static bool edge_tx_empty(struct usb_serial_port *port)
+{
+	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+	int ret;
+
+	ret = tx_active(edge_port);
+	if (ret > 0)
+		return false;
+
+	return true;
+}
+
 static void edge_throttle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
@@ -2739,6 +2751,7 @@ static struct usb_serial_driver edgeport_1port_device = {
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,
+	.tx_empty		= edge_tx_empty,
 	.break_ctl		= edge_break,
 	.read_int_callback	= edge_interrupt_callback,
 	.read_bulk_callback	= edge_bulk_in_callback,
@@ -2770,6 +2783,7 @@ static struct usb_serial_driver edgeport_2port_device = {
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,
+	.tx_empty		= edge_tx_empty,
 	.break_ctl		= edge_break,
 	.read_int_callback	= edge_interrupt_callback,
 	.read_bulk_callback	= edge_bulk_in_callback,
-- 
1.7.10.4

[111/141] xen/smp: Fixup NOHZ per cpu data when onlining an offline CPU.

[Steven Rostedt]

[-- Attachment #1: 0111-xen-smp-Fixup-NOHZ-per-cpu-data-when-onlining-an-off.patch --]
[-- Type: text/plain, Size: 3316 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

[ Upstream commit 466318a87f28cb3ba0d08a3b7ef1a37ae73d5aa7 ]

The xen_play_dead is an undead function. When the vCPU is told to
offline it ends up calling xen_play_dead wherin it calls the
VCPUOP_down hypercall which offlines the vCPU. However, when the
vCPU is onlined back, it resumes execution right after
VCPUOP_down hypercall.

That was OK (albeit the API for play_dead assumes that the CPU
stays dead and never returns) but with commit 4b0c0f294
(tick: Cleanup NOHZ per cpu data on cpu down) that is no longer safe
as said commit resets the ts->inidle which at the start of the
cpu_idle loop was set.

The net effect is that we get this warn:

Broke affinity for irq 16
installing Xen timer for CPU 1
cpu 1 spinlock event irq 48
------------[ cut here ]------------
WARNING: at /home/konrad/linux-linus/kernel/time/tick-sched.c:935 tick_nohz_idle_exit+0x195/0x1b0()
Modules linked in: dm_multipath dm_mod xen_evtchn iscsi_boot_sysfs
CPU: 1 PID: 0 Comm: swapper/1 Not tainted 3.10.0-rc3upstream-00068-gdcdbe33 #1
Hardware name: BIOSTAR Group N61PB-M2S/N61PB-M2S, BIOS 6.00 PG 09/03/2009
 ffffffff8193b448 ffff880039da5e60 ffffffff816707c8 ffff880039da5ea0
 ffffffff8108ce8b ffff880039da4010 ffff88003fa8e500 ffff880039da4010
 0000000000000001 ffff880039da4000 ffff880039da4010 ffff880039da5eb0
Call Trace:
 [<ffffffff816707c8>] dump_stack+0x19/0x1b
 [<ffffffff8108ce8b>] warn_slowpath_common+0x6b/0xa0
 [<ffffffff8108ced5>] warn_slowpath_null+0x15/0x20
 [<ffffffff810e4745>] tick_nohz_idle_exit+0x195/0x1b0
 [<ffffffff810da755>] cpu_startup_entry+0x205/0x250
 [<ffffffff81661070>] cpu_bringup_and_idle+0x13/0x15
---[ end trace 915c8c486004dda1 ]---

b/c ts_inidle is set to zero. Thomas suggested that we just add a workaround
to call tick_nohz_idle_enter before returning from xen_play_dead() - and
that is what this patch does and fixes the issue.

We also add the stable part b/c git commit 4b0c0f294 is on the stable
tree.

CC: stable@vger.kernel.org
Suggested-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/x86/xen/smp.c |    8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 641c91e..76bce6e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -17,6 +17,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/irq_work.h>
+#include <linux/tick.h>
 
 #include <asm/paravirt.h>
 #include <asm/desc.h>
@@ -435,6 +436,13 @@ static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */
 	HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);
 	cpu_bringup();
 	/*
+	 * commit 4b0c0f294 (tick: Cleanup NOHZ per cpu data on cpu down)
+	 * clears certain data that the cpu_idle loop (which called us
+	 * and that we return from) expects. The only way to get that
+	 * data back is to call:
+	 */
+	tick_nohz_idle_enter();
+	/*
 	 * Balance out the preempt calls - as we are running in cpu_idle
 	 * loop which has been called at bootup from cpu_bringup_and_idle.
 	 * The cpucpu_bringup_and_idle called cpu_bringup which made a
-- 
1.7.10.4

[112/141] b43: stop format string leaking into error msgs

[Steven Rostedt]

[-- Attachment #1: 0112-b43-stop-format-string-leaking-into-error-msgs.patch --]
[-- Type: text/plain, Size: 1325 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kees Cook <keescook@chromium.org>

[ Upstream commit e0e29b683d6784ef59bbc914eac85a04b650e63c ]

The module parameter "fwpostfix" is userspace controllable, unfiltered,
and is used to define the firmware filename. b43_do_request_fw() populates
ctx->errors[] on error, containing the firmware filename. b43err()
parses its arguments as a format string. For systems with b43 hardware,
this could lead to a uid-0 to ring-0 escalation.

CVE-2013-2852

Signed-off-by: Kees Cook <keescook@chromium.org>
Cc: stable@vger.kernel.org
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/wireless/b43/main.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 54ecf96..f2e4426 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2423,7 +2423,7 @@ static void b43_request_firmware(struct work_struct *work)
 	for (i = 0; i < B43_NR_FWTYPES; i++) {
 		errmsg = ctx->errors[i];
 		if (strlen(errmsg))
-			b43err(dev->wl, errmsg);
+			b43err(dev->wl, "%s", errmsg);
 	}
 	b43_print_fw_helptext(dev->wl, 1);
 	goto out;
-- 
1.7.10.4

[113/141] ceph: add cpu_to_le32() calls when encoding a reconnect capability

[Steven Rostedt]

[-- Attachment #1: 0113-ceph-add-cpu_to_le32-calls-when-encoding-a-reconnect.patch --]
[-- Type: text/plain, Size: 2665 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jim Schutt <jaschut@sandia.gov>

[ Upstream commit c420276a532a10ef59849adc2681f45306166b89 ]

In his review, Alex Elder mentioned that he hadn't checked that
num_fcntl_locks and num_flock_locks were properly decoded on the
server side, from a le32 over-the-wire type to a cpu type.
I checked, and AFAICS it is done; those interested can consult
    Locker::_do_cap_update()
in src/mds/Locker.cc and src/include/encoding.h in the Ceph server
code (git://github.com/ceph/ceph).

I also checked the server side for flock_len decoding, and I believe
that also happens correctly, by virtue of having been declared
__le32 in struct ceph_mds_cap_reconnect, in src/include/ceph_fs.h.

Cc: stable@vger.kernel.org # 3.4+
Signed-off-by: Jim Schutt <jaschut@sandia.gov>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ceph/locks.c      |    7 +++++--
 fs/ceph/mds_client.c |    2 +-
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index 80576d05..e9960c8 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -206,10 +206,12 @@ int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
 	int err = 0;
 	int seen_fcntl = 0;
 	int seen_flock = 0;
+	__le32 nlocks;
 
 	dout("encoding %d flock and %d fcntl locks", num_flock_locks,
 	     num_fcntl_locks);
-	err = ceph_pagelist_append(pagelist, &num_fcntl_locks, sizeof(u32));
+	nlocks = cpu_to_le32(num_fcntl_locks);
+	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
 	if (err)
 		goto fail;
 	for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
@@ -229,7 +231,8 @@ int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
 			goto fail;
 	}
 
-	err = ceph_pagelist_append(pagelist, &num_flock_locks, sizeof(u32));
+	nlocks = cpu_to_le32(num_flock_locks);
+	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
 	if (err)
 		goto fail;
 	for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 1bcf712..f51a927 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2447,7 +2447,7 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 			lock_flocks();
 			ceph_count_locks(inode, &num_fcntl_locks,
 					 &num_flock_locks);
-			rec.v2.flock_len = (2*sizeof(u32) +
+			rec.v2.flock_len = cpu_to_le32(2*sizeof(u32) +
 					    (num_fcntl_locks+num_flock_locks) *
 					    sizeof(struct ceph_filelock));
 			unlock_flocks();
-- 
1.7.10.4

[114/141] ceph: ceph_pagelist_append might sleep while atomic

[Steven Rostedt]

[-- Attachment #1: 0114-ceph-ceph_pagelist_append-might-sleep-while-atomic.patch --]
[-- Type: text/plain, Size: 9574 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Jim Schutt <jaschut@sandia.gov>

[ Upstream commit 39be95e9c8c0b5668c9f8806ffe29bf9f4bc0f40 ]

Ceph's encode_caps_cb() worked hard to not call __page_cache_alloc()
while holding a lock, but it's spoiled because ceph_pagelist_addpage()
always calls kmap(), which might sleep.  Here's the result:

[13439.295457] ceph: mds0 reconnect start
[13439.300572] BUG: sleeping function called from invalid context at include/linux/highmem.h:58
[13439.309243] in_atomic(): 1, irqs_disabled(): 0, pid: 12059, name: kworker/1:1
    . . .
[13439.376225] Call Trace:
[13439.378757]  [<ffffffff81076f4c>] __might_sleep+0xfc/0x110
[13439.384353]  [<ffffffffa03f4ce0>] ceph_pagelist_append+0x120/0x1b0 [libceph]
[13439.391491]  [<ffffffffa0448fe9>] ceph_encode_locks+0x89/0x190 [ceph]
[13439.398035]  [<ffffffff814ee849>] ? _raw_spin_lock+0x49/0x50
[13439.403775]  [<ffffffff811cadf5>] ? lock_flocks+0x15/0x20
[13439.409277]  [<ffffffffa045e2af>] encode_caps_cb+0x41f/0x4a0 [ceph]
[13439.415622]  [<ffffffff81196748>] ? igrab+0x28/0x70
[13439.420610]  [<ffffffffa045e9f8>] ? iterate_session_caps+0xe8/0x250 [ceph]
[13439.427584]  [<ffffffffa045ea25>] iterate_session_caps+0x115/0x250 [ceph]
[13439.434499]  [<ffffffffa045de90>] ? set_request_path_attr+0x2d0/0x2d0 [ceph]
[13439.441646]  [<ffffffffa0462888>] send_mds_reconnect+0x238/0x450 [ceph]
[13439.448363]  [<ffffffffa0464542>] ? ceph_mdsmap_decode+0x5e2/0x770 [ceph]
[13439.455250]  [<ffffffffa0462e42>] check_new_map+0x352/0x500 [ceph]
[13439.461534]  [<ffffffffa04631ad>] ceph_mdsc_handle_map+0x1bd/0x260 [ceph]
[13439.468432]  [<ffffffff814ebc7e>] ? mutex_unlock+0xe/0x10
[13439.473934]  [<ffffffffa043c612>] extra_mon_dispatch+0x22/0x30 [ceph]
[13439.480464]  [<ffffffffa03f6c2c>] dispatch+0xbc/0x110 [libceph]
[13439.486492]  [<ffffffffa03eec3d>] process_message+0x1ad/0x1d0 [libceph]
[13439.493190]  [<ffffffffa03f1498>] ? read_partial_message+0x3e8/0x520 [libceph]
    . . .
[13439.587132] ceph: mds0 reconnect success
[13490.720032] ceph: mds0 caps stale
[13501.235257] ceph: mds0 recovery completed
[13501.300419] ceph: mds0 caps renewed

Fix it up by encoding locks into a buffer first, and when the number
of encoded locks is stable, copy that into a ceph_pagelist.

[elder@inktank.com: abbreviated the stack info a bit.]

Cc: stable@vger.kernel.org # 3.4+
Signed-off-by: Jim Schutt <jaschut@sandia.gov>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ceph/locks.c      |   76 +++++++++++++++++++++++++++++++-------------------
 fs/ceph/mds_client.c |   65 ++++++++++++++++++++++--------------------
 fs/ceph/super.h      |    9 ++++--
 3 files changed, 89 insertions(+), 61 deletions(-)

diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index e9960c8..bb5fb3d 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -191,29 +191,23 @@ void ceph_count_locks(struct inode *inode, int *fcntl_count, int *flock_count)
 }
 
 /**
- * Encode the flock and fcntl locks for the given inode into the pagelist.
- * Format is: #fcntl locks, sequential fcntl locks, #flock locks,
- * sequential flock locks.
- * Must be called with lock_flocks() already held.
- * If we encounter more of a specific lock type than expected,
- * we return the value 1.
+ * Encode the flock and fcntl locks for the given inode into the ceph_filelock
+ * array. Must be called with lock_flocks() already held.
+ * If we encounter more of a specific lock type than expected, return -ENOSPC.
  */
-int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
-		      int num_fcntl_locks, int num_flock_locks)
+int ceph_encode_locks_to_buffer(struct inode *inode,
+				struct ceph_filelock *flocks,
+				int num_fcntl_locks, int num_flock_locks)
 {
 	struct file_lock *lock;
-	struct ceph_filelock cephlock;
 	int err = 0;
 	int seen_fcntl = 0;
 	int seen_flock = 0;
-	__le32 nlocks;
+	int l = 0;
 
 	dout("encoding %d flock and %d fcntl locks", num_flock_locks,
 	     num_fcntl_locks);
-	nlocks = cpu_to_le32(num_fcntl_locks);
-	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
-	if (err)
-		goto fail;
+
 	for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
 		if (lock->fl_flags & FL_POSIX) {
 			++seen_fcntl;
@@ -221,20 +215,12 @@ int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
 				err = -ENOSPC;
 				goto fail;
 			}
-			err = lock_to_ceph_filelock(lock, &cephlock);
+			err = lock_to_ceph_filelock(lock, &flocks[l]);
 			if (err)
 				goto fail;
-			err = ceph_pagelist_append(pagelist, &cephlock,
-					   sizeof(struct ceph_filelock));
+			++l;
 		}
-		if (err)
-			goto fail;
 	}
-
-	nlocks = cpu_to_le32(num_flock_locks);
-	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
-	if (err)
-		goto fail;
 	for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
 		if (lock->fl_flags & FL_FLOCK) {
 			++seen_flock;
@@ -242,19 +228,51 @@ int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
 				err = -ENOSPC;
 				goto fail;
 			}
-			err = lock_to_ceph_filelock(lock, &cephlock);
+			err = lock_to_ceph_filelock(lock, &flocks[l]);
 			if (err)
 				goto fail;
-			err = ceph_pagelist_append(pagelist, &cephlock,
-					   sizeof(struct ceph_filelock));
+			++l;
 		}
-		if (err)
-			goto fail;
 	}
 fail:
 	return err;
 }
 
+/**
+ * Copy the encoded flock and fcntl locks into the pagelist.
+ * Format is: #fcntl locks, sequential fcntl locks, #flock locks,
+ * sequential flock locks.
+ * Returns zero on success.
+ */
+int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
+			   struct ceph_pagelist *pagelist,
+			   int num_fcntl_locks, int num_flock_locks)
+{
+	int err = 0;
+	__le32 nlocks;
+
+	nlocks = cpu_to_le32(num_fcntl_locks);
+	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
+	if (err)
+		goto out_fail;
+
+	err = ceph_pagelist_append(pagelist, flocks,
+				   num_fcntl_locks * sizeof(*flocks));
+	if (err)
+		goto out_fail;
+
+	nlocks = cpu_to_le32(num_flock_locks);
+	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
+	if (err)
+		goto out_fail;
+
+	err = ceph_pagelist_append(pagelist,
+				   &flocks[num_fcntl_locks],
+				   num_flock_locks * sizeof(*flocks));
+out_fail:
+	return err;
+}
+
 /*
  * Given a pointer to a lock, convert it to a ceph filelock
  */
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index f51a927..b254e7a 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -2440,39 +2440,44 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 
 	if (recon_state->flock) {
 		int num_fcntl_locks, num_flock_locks;
-		struct ceph_pagelist_cursor trunc_point;
-
-		ceph_pagelist_set_cursor(pagelist, &trunc_point);
-		do {
-			lock_flocks();
-			ceph_count_locks(inode, &num_fcntl_locks,
-					 &num_flock_locks);
-			rec.v2.flock_len = cpu_to_le32(2*sizeof(u32) +
-					    (num_fcntl_locks+num_flock_locks) *
-					    sizeof(struct ceph_filelock));
-			unlock_flocks();
-
-			/* pre-alloc pagelist */
-			ceph_pagelist_truncate(pagelist, &trunc_point);
-			err = ceph_pagelist_append(pagelist, &rec, reclen);
-			if (!err)
-				err = ceph_pagelist_reserve(pagelist,
-							    rec.v2.flock_len);
-
-			/* encode locks */
-			if (!err) {
-				lock_flocks();
-				err = ceph_encode_locks(inode,
-							pagelist,
-							num_fcntl_locks,
-							num_flock_locks);
-				unlock_flocks();
-			}
-		} while (err == -ENOSPC);
+		struct ceph_filelock *flocks;
+
+encode_again:
+		lock_flocks();
+		ceph_count_locks(inode, &num_fcntl_locks, &num_flock_locks);
+		unlock_flocks();
+		flocks = kmalloc((num_fcntl_locks+num_flock_locks) *
+				 sizeof(struct ceph_filelock), GFP_NOFS);
+		if (!flocks) {
+			err = -ENOMEM;
+			goto out_free;
+		}
+		lock_flocks();
+		err = ceph_encode_locks_to_buffer(inode, flocks,
+						  num_fcntl_locks,
+						  num_flock_locks);
+		unlock_flocks();
+		if (err) {
+			kfree(flocks);
+			if (err == -ENOSPC)
+				goto encode_again;
+			goto out_free;
+		}
+		/*
+		 * number of encoded locks is stable, so copy to pagelist
+		 */
+		rec.v2.flock_len = cpu_to_le32(2*sizeof(u32) +
+				    (num_fcntl_locks+num_flock_locks) *
+				    sizeof(struct ceph_filelock));
+		err = ceph_pagelist_append(pagelist, &rec, reclen);
+		if (!err)
+			err = ceph_locks_to_pagelist(flocks, pagelist,
+						     num_fcntl_locks,
+						     num_flock_locks);
+		kfree(flocks);
 	} else {
 		err = ceph_pagelist_append(pagelist, &rec, reclen);
 	}
-
 out_free:
 	kfree(path);
 out_dput:
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 66ebe72..bd49b4f 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -847,8 +847,13 @@ extern const struct export_operations ceph_export_ops;
 extern int ceph_lock(struct file *file, int cmd, struct file_lock *fl);
 extern int ceph_flock(struct file *file, int cmd, struct file_lock *fl);
 extern void ceph_count_locks(struct inode *inode, int *p_num, int *f_num);
-extern int ceph_encode_locks(struct inode *i, struct ceph_pagelist *p,
-			     int p_locks, int f_locks);
+extern int ceph_encode_locks_to_buffer(struct inode *inode,
+				       struct ceph_filelock *flocks,
+				       int num_fcntl_locks,
+				       int num_flock_locks);
+extern int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
+				  struct ceph_pagelist *pagelist,
+				  int num_fcntl_locks, int num_flock_locks);
 extern int lock_to_ceph_filelock(struct file_lock *fl, struct ceph_filelock *c);
 
 /* debugfs.c */
-- 
1.7.10.4

[115/141] drivers/rtc/rtc-twl.c: fix missing device_init_wakeup() when booted with device tree

[Steven Rostedt]

[-- Attachment #1: 0115-drivers-rtc-rtc-twl.c-fix-missing-device_init_wakeup.patch --]
[-- Type: text/plain, Size: 1497 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Tony Lindgren <tony@atomide.com>

[ Upstream commit 24b8256a1fb28d357bc6fa09184ba29b4255ba5c ]

When booted in legacy mode device_init_wakeup() gets called by
drivers/mfd/twl-core.c when the children are initialized.  However, when
booted using device tree, the children are created with
of_platform_populate() instead add_children().

This means that the RTC driver will not have device_init_wakeup() set,
and we need to call it from the driver probe like RTC drivers typically
do.

Without this we cannot test PM wake-up events on omaps for cases where
there may not be any physical wake-up event.

Signed-off-by: Tony Lindgren <tony@atomide.com>
Reported-by: Kevin Hilman <khilman@linaro.org>
Cc: Alessandro Zummo <a.zummo@towertech.it>
Cc: Jingoo Han <jg1.han@samsung.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/rtc/rtc-twl.c |    1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 9277d94..1789a25 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -523,6 +523,7 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, rtc);
+	device_init_wakeup(&pdev->dev, 1);
 	return 0;
 
 out2:
-- 
1.7.10.4

[116/141] drm/gma500/psb: Unpin framebuffer on crtc disable

[Steven Rostedt]

[-- Attachment #1: 0116-drm-gma500-psb-Unpin-framebuffer-on-crtc-disable.patch --]
[-- Type: text/plain, Size: 1955 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

[ Upstream commit 820de86a90089ee607d7864538c98a23b503c846 ]

The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Poulsbo.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/gma500/psb_intel_display.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index 8033526..8714d6a 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -1246,6 +1246,19 @@ void psb_intel_crtc_destroy(struct drm_crtc *crtc)
 	kfree(psb_intel_crtc);
 }
 
+static void psb_intel_crtc_disable(struct drm_crtc *crtc)
+{
+	struct gtt_range *gt;
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	if (crtc->fb) {
+		gt = to_psb_fb(crtc->fb)->gtt;
+		psb_gtt_unpin(gt);
+	}
+}
+
 const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.dpms = psb_intel_crtc_dpms,
 	.mode_fixup = psb_intel_crtc_mode_fixup,
@@ -1253,6 +1266,7 @@ const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.mode_set_base = psb_intel_pipe_set_base,
 	.prepare = psb_intel_crtc_prepare,
 	.commit = psb_intel_crtc_commit,
+	.disable = psb_intel_crtc_disable,
 };
 
 const struct drm_crtc_funcs psb_intel_crtc_funcs = {
-- 
1.7.10.4

[117/141] drm/gma500/cdv: Unpin framebuffer on crtc disable

[Steven Rostedt]

[-- Attachment #1: 0117-drm-gma500-cdv-Unpin-framebuffer-on-crtc-disable.patch --]
[-- Type: text/plain, Size: 1964 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>

[ Upstream commit 22e7c385a80d771aaf3a15ae7ccea3b0686bbe10 ]

The framebuffer needs to be unpinned in the crtc->disable callback
because of previous pinning in psb_intel_pipe_set_base(). This will fix
a memory leak where the framebuffer was released but not unpinned
properly. This patch only affects Cedarview.

Bugzilla: https://bugzilla.redhat.com/show_bug.cgi?id=889511
Bugzilla: https://bugzilla.novell.com/show_bug.cgi?id=812113
Cc: stable@vger.kernel.org
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Patrik Jakobsson <patrik.r.jakobsson@gmail.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/gma500/cdv_intel_display.c |   14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
index a68509b..294fcf5 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -1600,6 +1600,19 @@ static void cdv_intel_crtc_destroy(struct drm_crtc *crtc)
 	kfree(psb_intel_crtc);
 }
 
+static void cdv_intel_crtc_disable(struct drm_crtc *crtc)
+{
+	struct gtt_range *gt;
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	if (crtc->fb) {
+		gt = to_psb_fb(crtc->fb)->gtt;
+		psb_gtt_unpin(gt);
+	}
+}
+
 const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
 	.dpms = cdv_intel_crtc_dpms,
 	.mode_fixup = cdv_intel_crtc_mode_fixup,
@@ -1607,6 +1620,7 @@ const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
 	.mode_set_base = cdv_intel_pipe_set_base,
 	.prepare = cdv_intel_crtc_prepare,
 	.commit = cdv_intel_crtc_commit,
+	.disable = cdv_intel_crtc_disable,
 };
 
 const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
-- 
1.7.10.4

[118/141] Bluetooth: Fix mgmt handling of power on failures

[Steven Rostedt]

[-- Attachment #1: 0118-Bluetooth-Fix-mgmt-handling-of-power-on-failures.patch --]
[-- Type: text/plain, Size: 3642 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hedberg <johan.hedberg@intel.com>

[ Upstream commit 96570ffcca0b872dc8626e97569d2697f374d868 ]

If hci_dev_open fails we need to ensure that the corresponding
mgmt_set_powered command gets an appropriate response. This patch fixes
the missing response by adding a new mgmt_set_powered_failed function
that's used to indicate a power on failure to mgmt. Since a situation
with the device being rfkilled may require special handling in user
space the patch uses a new dedicated mgmt status code for this.

Signed-off-by: Johan Hedberg <johan.hedberg@intel.com>
Cc: stable@vger.kernel.org
Acked-by: Marcel Holtmann <marcel@holtmann.org>
Signed-off-by: Gustavo Padovan <gustavo.padovan@collabora.co.uk>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/net/bluetooth/hci_core.h |    1 +
 include/net/bluetooth/mgmt.h     |    1 +
 net/bluetooth/hci_core.c         |    6 +++++-
 net/bluetooth/mgmt.c             |   21 +++++++++++++++++++++
 4 files changed, 28 insertions(+), 1 deletion(-)

diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 475b8c0..0f35895 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1002,6 +1002,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 int mgmt_index_added(struct hci_dev *hdev);
 int mgmt_index_removed(struct hci_dev *hdev);
+int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 4348ee8..bd0fc7d 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -42,6 +42,7 @@
 #define MGMT_STATUS_NOT_POWERED		0x0f
 #define MGMT_STATUS_CANCELLED		0x10
 #define MGMT_STATUS_INVALID_INDEX	0x11
+#define MGMT_STATUS_RFKILLED		0x12
 
 struct mgmt_hdr {
 	__le16	opcode;
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0b997c8..d1636e4 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1076,11 +1076,15 @@ static const struct rfkill_ops hci_rfkill_ops = {
 static void hci_power_on(struct work_struct *work)
 {
 	struct hci_dev *hdev = container_of(work, struct hci_dev, power_on);
+	int err;
 
 	BT_DBG("%s", hdev->name);
 
-	if (hci_dev_open(hdev->id) < 0)
+	err = hci_dev_open(hdev->id);
+	if (err < 0) {
+		mgmt_set_powered_failed(hdev, err);
 		return;
+	}
 
 	if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 		schedule_delayed_work(&hdev->power_off, HCI_AUTO_OFF_TIMEOUT);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 534250a..0fef923 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2908,6 +2908,27 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered)
 	return err;
 }
 
+int mgmt_set_powered_failed(struct hci_dev *hdev, int err)
+{
+	struct pending_cmd *cmd;
+	u8 status;
+
+	cmd = mgmt_pending_find(MGMT_OP_SET_POWERED, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	if (err == -ERFKILL)
+		status = MGMT_STATUS_RFKILLED;
+	else
+		status = MGMT_STATUS_FAILED;
+
+	err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
+
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
 	struct cmd_lookup match = { NULL, hdev };
-- 
1.7.10.4

[119/141] ath9k: Disable PowerSave by default

[Steven Rostedt]

[-- Attachment #1: 0119-ath9k-Disable-PowerSave-by-default.patch --]
[-- Type: text/plain, Size: 1569 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sujith Manoharan <c_manoha@qca.qualcomm.com>

[ Upstream commit 531671cb17af07281e6f28c1425f754346e65c41 ]

Almost all the DMA issues which have plagued ath9k (in station mode)
for years are related to PS. Disabling PS usually "fixes" the user's
connection stablility. Reports of DMA problems are still trickling in
and are sitting in the kernel bugzilla. Until the PS code in ath9k is
given a thorough review, disbale it by default. The slight increase
in chip power consumption is a small price to pay for improved link
stability.

Cc: stable@vger.kernel.org
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/wireless/ath/ath9k/init.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index f337121..78dd015 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -707,8 +707,7 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	hw->wiphy->iface_combinations = &if_comb;
 	hw->wiphy->n_iface_combinations = 1;
 
-	if (AR_SREV_5416(sc->sc_ah))
-		hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 
 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 	hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
-- 
1.7.10.4

[120/141] Revert "ath9k_hw: Update rx gain initval to improve rx sensitivity"

[Steven Rostedt]

[-- Attachment #1: 0120-Revert-ath9k_hw-Update-rx-gain-initval-to-improve-rx.patch --]
[-- Type: text/plain, Size: 1582 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Felix Fietkau <nbd@openwrt.org>

[ Upstream commit 96005931785238e1a24febf65ffb5016273e8225 ]

This reverts commit 68d9e1fa24d9c7c2e527f49df8d18fb8cf0ec943

This change reduces rx sensitivity with no apparent extra benefit.
It looks like it was meant for testing in a specific scenario,
but it was never properly validated.

Cc: rmanohar@qca.qualcomm.com
Cc: stable@vger.kernel.org
Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
index 6f7cf49..2ad5703 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
@@ -778,11 +778,11 @@ static const u32 ar9300Common_rx_gain_table_2p2[][2] = {
 	{0x0000a074, 0x00000000},
 	{0x0000a078, 0x00000000},
 	{0x0000a07c, 0x00000000},
-	{0x0000a080, 0x1a1a1a1a},
-	{0x0000a084, 0x1a1a1a1a},
-	{0x0000a088, 0x1a1a1a1a},
-	{0x0000a08c, 0x1a1a1a1a},
-	{0x0000a090, 0x171a1a1a},
+	{0x0000a080, 0x22222229},
+	{0x0000a084, 0x1d1d1d1d},
+	{0x0000a088, 0x1d1d1d1d},
+	{0x0000a08c, 0x1d1d1d1d},
+	{0x0000a090, 0x171d1d1d},
 	{0x0000a094, 0x11111717},
 	{0x0000a098, 0x00030311},
 	{0x0000a09c, 0x00000000},
-- 
1.7.10.4

[121/141] ath9k: Use minstrel rate control by default

[Steven Rostedt]

[-- Attachment #1: 0121-ath9k-Use-minstrel-rate-control-by-default.patch --]
[-- Type: text/plain, Size: 3766 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sujith Manoharan <c_manoha@qca.qualcomm.com>

[ Upstream commit 5efac94999ff218e0101f67a059e44abb4b0b523 ]

The ath9k rate control algorithm has various architectural
issues that make it a poor fit in scenarios like congested
environments etc.

An example: https://bugzilla.redhat.com/show_bug.cgi?id=927191

Change the default to minstrel which is more robust in such cases.
The ath9k RC code is left in the driver for now, maybe it can
be removed altogether later on.

Cc: stable@vger.kernel.org
Cc: Jouni Malinen <jouni@qca.qualcomm.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/net/wireless/ath/ath9k/Kconfig  |   10 +++++++---
 drivers/net/wireless/ath/ath9k/Makefile |    2 +-
 drivers/net/wireless/ath/ath9k/init.c   |    4 ----
 drivers/net/wireless/ath/ath9k/rc.h     |    2 +-
 4 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index c7aa664..1b43b83 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -89,13 +89,17 @@ config ATH9K_MAC_DEBUG
 	  This option enables collection of statistics for Rx/Tx status
 	  data and some other MAC related statistics
 
-config ATH9K_RATE_CONTROL
+config ATH9K_LEGACY_RATE_CONTROL
 	bool "Atheros ath9k rate control"
 	depends on ATH9K
-	default y
+	default n
 	---help---
 	  Say Y, if you want to use the ath9k specific rate control
-	  module instead of minstrel_ht.
+	  module instead of minstrel_ht. Be warned that there are various
+	  issues with the ath9k RC and minstrel is a more robust algorithm.
+	  Note that even if this option is selected, "ath9k_rate_control"
+	  has to be passed to mac80211 using the module parameter,
+	  ieee80211_default_rc_algo.
 
 config ATH9K_HTC
        tristate "Atheros HTC based wireless cards support"
diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile
index 2ad8f94..75ee9e7 100644
--- a/drivers/net/wireless/ath/ath9k/Makefile
+++ b/drivers/net/wireless/ath/ath9k/Makefile
@@ -8,7 +8,7 @@ ath9k-y +=	beacon.o \
 		antenna.o
 
 ath9k-$(CONFIG_ATH9K_BTCOEX_SUPPORT) += mci.o
-ath9k-$(CONFIG_ATH9K_RATE_CONTROL) += rc.o
+ath9k-$(CONFIG_ATH9K_LEGACY_RATE_CONTROL) += rc.o
 ath9k-$(CONFIG_ATH9K_PCI) += pci.o
 ath9k-$(CONFIG_ATH9K_AHB) += ahb.o
 ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index 78dd015..d6f6dd3 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -749,10 +749,6 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	sc->ant_rx = hw->wiphy->available_antennas_rx;
 	sc->ant_tx = hw->wiphy->available_antennas_tx;
 
-#ifdef CONFIG_ATH9K_RATE_CONTROL
-	hw->rate_control_algorithm = "ath9k_rate_control";
-#endif
-
 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 		hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 			&sc->sbands[IEEE80211_BAND_2GHZ];
diff --git a/drivers/net/wireless/ath/ath9k/rc.h b/drivers/net/wireless/ath/ath9k/rc.h
index 75f8e9b..12cf122 100644
--- a/drivers/net/wireless/ath/ath9k/rc.h
+++ b/drivers/net/wireless/ath/ath9k/rc.h
@@ -219,7 +219,7 @@ struct ath_rate_priv {
 	struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
 };
 
-#ifdef CONFIG_ATH9K_RATE_CONTROL
+#ifdef CONFIG_ATH9K_LEGACY_RATE_CONTROL
 int ath_rate_control_register(void);
 void ath_rate_control_unregister(void);
 #else
-- 
1.7.10.4

[122/141] CPU hotplug: provide a generic helper to disable/enable CPU hotplug

[Steven Rostedt]

[-- Attachment #1: 0122-CPU-hotplug-provide-a-generic-helper-to-disable-enab.patch --]
[-- Type: text/plain, Size: 4904 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>

[ Upstream commit 16e53dbf10a2d7e228709a7286310e629ede5e45 ]

There are instances in the kernel where we would like to disable CPU
hotplug (from sysfs) during some important operation.  Today the freezer
code depends on this and the code to do it was kinda tailor-made for
that.

Restructure the code and make it generic enough to be useful for other
usecases too.

Signed-off-by: Srivatsa S. Bhat <srivatsa.bhat@linux.vnet.ibm.com>
Signed-off-by: Robin Holt <holt@sgi.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: Shawn Guo <shawn.guo@linaro.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/cpu.h |    4 ++++
 kernel/cpu.c        |   55 +++++++++++++++++++++------------------------------
 2 files changed, 27 insertions(+), 32 deletions(-)

diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ce7a074..714e792 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -175,6 +175,8 @@ extern struct bus_type cpu_subsys;
 
 extern void get_online_cpus(void);
 extern void put_online_cpus(void);
+extern void cpu_hotplug_disable(void);
+extern void cpu_hotplug_enable(void);
 #define hotcpu_notifier(fn, pri)	cpu_notifier(fn, pri)
 #define register_hotcpu_notifier(nb)	register_cpu_notifier(nb)
 #define unregister_hotcpu_notifier(nb)	unregister_cpu_notifier(nb)
@@ -198,6 +200,8 @@ static inline void cpu_hotplug_driver_unlock(void)
 
 #define get_online_cpus()	do { } while (0)
 #define put_online_cpus()	do { } while (0)
+#define cpu_hotplug_disable()	do { } while (0)
+#define cpu_hotplug_enable()	do { } while (0)
 #define hotcpu_notifier(fn, pri)	do { (void)(fn); } while (0)
 /* These aren't inline functions due to a GCC bug. */
 #define register_hotcpu_notifier(nb)	({ (void)(nb); 0; })
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 14d3258..2e181cb 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -129,6 +129,27 @@ static void cpu_hotplug_done(void)
 	mutex_unlock(&cpu_hotplug.lock);
 }
 
+/*
+ * Wait for currently running CPU hotplug operations to complete (if any) and
+ * disable future CPU hotplug (from sysfs). The 'cpu_add_remove_lock' protects
+ * the 'cpu_hotplug_disabled' flag. The same lock is also acquired by the
+ * hotplug path before performing hotplug operations. So acquiring that lock
+ * guarantees mutual exclusion from any currently running hotplug operations.
+ */
+void cpu_hotplug_disable(void)
+{
+	cpu_maps_update_begin();
+	cpu_hotplug_disabled = 1;
+	cpu_maps_update_done();
+}
+
+void cpu_hotplug_enable(void)
+{
+	cpu_maps_update_begin();
+	cpu_hotplug_disabled = 0;
+	cpu_maps_update_done();
+}
+
 #else /* #if CONFIG_HOTPLUG_CPU */
 static void cpu_hotplug_begin(void) {}
 static void cpu_hotplug_done(void) {}
@@ -534,36 +555,6 @@ static int __init alloc_frozen_cpus(void)
 core_initcall(alloc_frozen_cpus);
 
 /*
- * Prevent regular CPU hotplug from racing with the freezer, by disabling CPU
- * hotplug when tasks are about to be frozen. Also, don't allow the freezer
- * to continue until any currently running CPU hotplug operation gets
- * completed.
- * To modify the 'cpu_hotplug_disabled' flag, we need to acquire the
- * 'cpu_add_remove_lock'. And this same lock is also taken by the regular
- * CPU hotplug path and released only after it is complete. Thus, we
- * (and hence the freezer) will block here until any currently running CPU
- * hotplug operation gets completed.
- */
-void cpu_hotplug_disable_before_freeze(void)
-{
-	cpu_maps_update_begin();
-	cpu_hotplug_disabled = 1;
-	cpu_maps_update_done();
-}
-
-
-/*
- * When tasks have been thawed, re-enable regular CPU hotplug (which had been
- * disabled while beginning to freeze tasks).
- */
-void cpu_hotplug_enable_after_thaw(void)
-{
-	cpu_maps_update_begin();
-	cpu_hotplug_disabled = 0;
-	cpu_maps_update_done();
-}
-
-/*
  * When callbacks for CPU hotplug notifications are being executed, we must
  * ensure that the state of the system with respect to the tasks being frozen
  * or not, as reported by the notification, remains unchanged *throughout the
@@ -582,12 +573,12 @@ cpu_hotplug_pm_callback(struct notifier_block *nb,
 
 	case PM_SUSPEND_PREPARE:
 	case PM_HIBERNATION_PREPARE:
-		cpu_hotplug_disable_before_freeze();
+		cpu_hotplug_disable();
 		break;
 
 	case PM_POST_SUSPEND:
 	case PM_POST_HIBERNATION:
-		cpu_hotplug_enable_after_thaw();
+		cpu_hotplug_enable();
 		break;
 
 	default:
-- 
1.7.10.4

[123/141] reboot: rigrate shutdown/reboot to boot cpu

[Steven Rostedt]

[-- Attachment #1: 0123-reboot-rigrate-shutdown-reboot-to-boot-cpu.patch --]
[-- Type: text/plain, Size: 3381 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Robin Holt <holt@sgi.com>

[ Upstream commit cf7df378aa4ff7da3a44769b7ff6e9eef1a9f3db ]

We recently noticed that reboot of a 1024 cpu machine takes approx 16
minutes of just stopping the cpus.  The slowdown was tracked to commit
f96972f2dc63 ("kernel/sys.c: call disable_nonboot_cpus() in
kernel_restart()").

The current implementation does all the work of hot removing the cpus
before halting the system.  We are switching to just migrating to the
boot cpu and then continuing with shutdown/reboot.

This also has the effect of not breaking x86's command line parameter
for specifying the reboot cpu.  Note, this code was shamelessly copied
from arch/x86/kernel/reboot.c with bits removed pertaining to the
reboot_cpu command line parameter.

Signed-off-by: Robin Holt <holt@sgi.com>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Cc: "Srivatsa S. Bhat" <srivatsa.bhat@linux.vnet.ibm.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russ Anderson <rja@sgi.com>
Cc: Robin Holt <holt@sgi.com>
Cc: Russell King <linux@arm.linux.org.uk>
Cc: Guan Xuetao <gxt@mprc.pku.edu.cn>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 kernel/sys.c |   29 ++++++++++++++++++++++++++---
 1 file changed, 26 insertions(+), 3 deletions(-)

diff --git a/kernel/sys.c b/kernel/sys.c
index 61c086b7..7ce45e1 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -356,6 +356,29 @@ int unregister_reboot_notifier(struct notifier_block *nb)
 }
 EXPORT_SYMBOL(unregister_reboot_notifier);
 
+/* Add backwards compatibility for stable trees. */
+#ifndef PF_NO_SETAFFINITY
+#define PF_NO_SETAFFINITY		PF_THREAD_BOUND
+#endif
+
+static void migrate_to_reboot_cpu(void)
+{
+	/* The boot cpu is always logical cpu 0 */
+	int cpu = 0;
+
+	cpu_hotplug_disable();
+
+	/* Make certain the cpu I'm about to reboot on is online */
+	if (!cpu_online(cpu))
+		cpu = cpumask_first(cpu_online_mask);
+
+	/* Prevent races with other tasks migrating this task */
+	current->flags |= PF_NO_SETAFFINITY;
+
+	/* Make certain I only run on the appropriate processor */
+	set_cpus_allowed_ptr(current, cpumask_of(cpu));
+}
+
 /**
  *	kernel_restart - reboot the system
  *	@cmd: pointer to buffer containing command to execute for restart
@@ -367,7 +390,7 @@ EXPORT_SYMBOL(unregister_reboot_notifier);
 void kernel_restart(char *cmd)
 {
 	kernel_restart_prepare(cmd);
-	disable_nonboot_cpus();
+	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	if (!cmd)
 		printk(KERN_EMERG "Restarting system.\n");
@@ -394,7 +417,7 @@ static void kernel_shutdown_prepare(enum system_states state)
 void kernel_halt(void)
 {
 	kernel_shutdown_prepare(SYSTEM_HALT);
-	disable_nonboot_cpus();
+	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	printk(KERN_EMERG "System halted.\n");
 	kmsg_dump(KMSG_DUMP_HALT);
@@ -413,7 +436,7 @@ void kernel_power_off(void)
 	kernel_shutdown_prepare(SYSTEM_POWER_OFF);
 	if (pm_power_off_prepare)
 		pm_power_off_prepare();
-	disable_nonboot_cpus();
+	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	printk(KERN_EMERG "Power down.\n");
 	kmsg_dump(KMSG_DUMP_POWEROFF);
-- 
1.7.10.4

[124/141] kmsg: honor dmesg_restrict sysctl on /dev/kmsg

[Steven Rostedt]

[-- Attachment #1: 0124-kmsg-honor-dmesg_restrict-sysctl-on-dev-kmsg.patch --]
[-- Type: text/plain, Size: 7625 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kees Cook <keescook@chromium.org>

[ Upstream commit 637241a900cbd982f744d44646b48a273d609b34 ]

The dmesg_restrict sysctl currently covers the syslog method for access
dmesg, however /dev/kmsg isn't covered by the same protections.  Most
people haven't noticed because util-linux dmesg(1) defaults to using the
syslog method for access in older versions.  With util-linux dmesg(1)
defaults to reading directly from /dev/kmsg.

To fix /dev/kmsg, let's compare the existing interfaces and what they
allow:

 - /proc/kmsg allows:
  - open (SYSLOG_ACTION_OPEN) if CAP_SYSLOG since it uses a destructive
    single-reader interface (SYSLOG_ACTION_READ).
  - everything, after an open.

 - syslog syscall allows:
  - anything, if CAP_SYSLOG.
  - SYSLOG_ACTION_READ_ALL and SYSLOG_ACTION_SIZE_BUFFER, if
    dmesg_restrict==0.
  - nothing else (EPERM).

The use-cases were:
 - dmesg(1) needs to do non-destructive SYSLOG_ACTION_READ_ALLs.
 - sysklog(1) needs to open /proc/kmsg, drop privs, and still issue the
   destructive SYSLOG_ACTION_READs.

AIUI, dmesg(1) is moving to /dev/kmsg, and systemd-journald doesn't
clear the ring buffer.

Based on the comments in devkmsg_llseek, it sounds like actions besides
reading aren't going to be supported by /dev/kmsg (i.e.
SYSLOG_ACTION_CLEAR), so we have a strict subset of the non-destructive
syslog syscall actions.

To this end, move the check as Josh had done, but also rename the
constants to reflect their new uses (SYSLOG_FROM_CALL becomes
SYSLOG_FROM_READER, and SYSLOG_FROM_FILE becomes SYSLOG_FROM_PROC).
SYSLOG_FROM_READER allows non-destructive actions, and SYSLOG_FROM_PROC
allows destructive actions after a capabilities-constrained
SYSLOG_ACTION_OPEN check.

 - /dev/kmsg allows:
  - open if CAP_SYSLOG or dmesg_restrict==0
  - reading/polling, after open

Addresses https://bugzilla.redhat.com/show_bug.cgi?id=903192

[akpm@linux-foundation.org: use pr_warn_once()]
Signed-off-by: Kees Cook <keescook@chromium.org>
Reported-by: Christian Kujau <lists@nerdbynature.de>
Tested-by: Josh Boyer <jwboyer@redhat.com>
Cc: Kay Sievers <kay@vrfy.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/proc/kmsg.c         |   10 +++---
 include/linux/syslog.h |    4 +--
 kernel/printk.c        |   91 ++++++++++++++++++++++++++----------------------
 3 files changed, 57 insertions(+), 48 deletions(-)

diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index bd4b5a7..bdfabda 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -21,12 +21,12 @@ extern wait_queue_head_t log_wait;
 
 static int kmsg_open(struct inode * inode, struct file * file)
 {
-	return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_FILE);
+	return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_PROC);
 }
 
 static int kmsg_release(struct inode * inode, struct file * file)
 {
-	(void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_FILE);
+	(void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_PROC);
 	return 0;
 }
 
@@ -34,15 +34,15 @@ static ssize_t kmsg_read(struct file *file, char __user *buf,
 			 size_t count, loff_t *ppos)
 {
 	if ((file->f_flags & O_NONBLOCK) &&
-	    !do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_FILE))
+	    !do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC))
 		return -EAGAIN;
-	return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_FILE);
+	return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_PROC);
 }
 
 static unsigned int kmsg_poll(struct file *file, poll_table *wait)
 {
 	poll_wait(file, &log_wait, wait);
-	if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_FILE))
+	if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC))
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
diff --git a/include/linux/syslog.h b/include/linux/syslog.h
index 3891139..98a3153 100644
--- a/include/linux/syslog.h
+++ b/include/linux/syslog.h
@@ -44,8 +44,8 @@
 /* Return size of the log buffer */
 #define SYSLOG_ACTION_SIZE_BUFFER   10
 
-#define SYSLOG_FROM_CALL 0
-#define SYSLOG_FROM_FILE 1
+#define SYSLOG_FROM_READER           0
+#define SYSLOG_FROM_PROC             1
 
 int do_syslog(int type, char __user *buf, int count, bool from_file);
 
diff --git a/kernel/printk.c b/kernel/printk.c
index 66a2ea3..2d3fc0e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -362,6 +362,53 @@ static void log_store(int facility, int level,
 	log_next_seq++;
 }
 
+#ifdef CONFIG_SECURITY_DMESG_RESTRICT
+int dmesg_restrict = 1;
+#else
+int dmesg_restrict;
+#endif
+
+static int syslog_action_restricted(int type)
+{
+	if (dmesg_restrict)
+		return 1;
+	/*
+	 * Unless restricted, we allow "read all" and "get buffer size"
+	 * for everybody.
+	 */
+	return type != SYSLOG_ACTION_READ_ALL &&
+	       type != SYSLOG_ACTION_SIZE_BUFFER;
+}
+
+static int check_syslog_permissions(int type, bool from_file)
+{
+	/*
+	 * If this is from /proc/kmsg and we've already opened it, then we've
+	 * already done the capabilities checks at open time.
+	 */
+	if (from_file && type != SYSLOG_ACTION_OPEN)
+		return 0;
+
+	if (syslog_action_restricted(type)) {
+		if (capable(CAP_SYSLOG))
+			return 0;
+		/*
+		 * For historical reasons, accept CAP_SYS_ADMIN too, with
+		 * a warning.
+		 */
+		if (capable(CAP_SYS_ADMIN)) {
+			pr_warn_once("%s (%d): Attempt to access syslog with "
+				     "CAP_SYS_ADMIN but no CAP_SYSLOG "
+				     "(deprecated).\n",
+				 current->comm, task_pid_nr(current));
+			return 0;
+		}
+		return -EPERM;
+	}
+	return security_syslog(type);
+}
+
+
 /* /dev/kmsg - userspace message inject/listen interface */
 struct devkmsg_user {
 	u64 seq;
@@ -618,7 +665,8 @@ static int devkmsg_open(struct inode *inode, struct file *file)
 	if ((file->f_flags & O_ACCMODE) == O_WRONLY)
 		return 0;
 
-	err = security_syslog(SYSLOG_ACTION_READ_ALL);
+	err = check_syslog_permissions(SYSLOG_ACTION_READ_ALL,
+				       SYSLOG_FROM_READER);
 	if (err)
 		return err;
 
@@ -794,45 +842,6 @@ static inline void boot_delay_msec(void)
 }
 #endif
 
-#ifdef CONFIG_SECURITY_DMESG_RESTRICT
-int dmesg_restrict = 1;
-#else
-int dmesg_restrict;
-#endif
-
-static int syslog_action_restricted(int type)
-{
-	if (dmesg_restrict)
-		return 1;
-	/* Unless restricted, we allow "read all" and "get buffer size" for everybody */
-	return type != SYSLOG_ACTION_READ_ALL && type != SYSLOG_ACTION_SIZE_BUFFER;
-}
-
-static int check_syslog_permissions(int type, bool from_file)
-{
-	/*
-	 * If this is from /proc/kmsg and we've already opened it, then we've
-	 * already done the capabilities checks at open time.
-	 */
-	if (from_file && type != SYSLOG_ACTION_OPEN)
-		return 0;
-
-	if (syslog_action_restricted(type)) {
-		if (capable(CAP_SYSLOG))
-			return 0;
-		/* For historical reasons, accept CAP_SYS_ADMIN too, with a warning */
-		if (capable(CAP_SYS_ADMIN)) {
-			printk_once(KERN_WARNING "%s (%d): "
-				 "Attempt to access syslog with CAP_SYS_ADMIN "
-				 "but no CAP_SYSLOG (deprecated).\n",
-				 current->comm, task_pid_nr(current));
-			return 0;
-		}
-		return -EPERM;
-	}
-	return 0;
-}
-
 #if defined(CONFIG_PRINTK_TIME)
 static bool printk_time = 1;
 #else
@@ -1229,7 +1238,7 @@ out:
 
 SYSCALL_DEFINE3(syslog, int, type, char __user *, buf, int, len)
 {
-	return do_syslog(type, buf, len, SYSLOG_FROM_CALL);
+	return do_syslog(type, buf, len, SYSLOG_FROM_READER);
 }
 
 static bool __read_mostly ignore_loglevel;
-- 
1.7.10.4

[125/141] cciss: fix broken mutex usage in ioctl

[Steven Rostedt]

[-- Attachment #1: 0125-cciss-fix-broken-mutex-usage-in-ioctl.patch --]
[-- Type: text/plain, Size: 6460 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: "Stephen M. Cameron" <scameron@beardog.cce.hp.com>

[ Upstream commit 03f47e888daf56c8e9046c674719a0bcc644eed5 ]

If a new logical drive is added and the CCISS_REGNEWD ioctl is invoked
(as is normal with the Array Configuration Utility) the process will
hang as below.  It attempts to acquire the same mutex twice, once in
do_ioctl() and once in cciss_unlocked_open().  The BKL was recursive,
the mutex isn't.

  Linux version 3.10.0-rc2 (scameron@localhost.localdomain) (gcc version 4.4.7 20120313 (Red Hat 4.4.7-3) (GCC) ) #1 SMP Fri May 24 14:32:12 CDT 2013
  [...]
  acu             D 0000000000000001     0  3246   3191 0x00000080
  Call Trace:
    schedule+0x29/0x70
    schedule_preempt_disabled+0xe/0x10
    __mutex_lock_slowpath+0x17b/0x220
    mutex_lock+0x2b/0x50
    cciss_unlocked_open+0x2f/0x110 [cciss]
    __blkdev_get+0xd3/0x470
    blkdev_get+0x5c/0x1e0
    register_disk+0x182/0x1a0
    add_disk+0x17c/0x310
    cciss_add_disk+0x13a/0x170 [cciss]
    cciss_update_drive_info+0x39b/0x480 [cciss]
    rebuild_lun_table+0x258/0x370 [cciss]
    cciss_ioctl+0x34f/0x470 [cciss]
    do_ioctl+0x49/0x70 [cciss]
    __blkdev_driver_ioctl+0x28/0x30
    blkdev_ioctl+0x200/0x7b0
    block_ioctl+0x3c/0x40
    do_vfs_ioctl+0x89/0x350
    SyS_ioctl+0xa1/0xb0
    system_call_fastpath+0x16/0x1b

This mutex usage was added into the ioctl path when the big kernel lock
was removed.  As it turns out, these paths are all thread safe anyway
(or can easily be made so) and we don't want ioctl() to be single
threaded in any case.

Signed-off-by: Stephen M. Cameron <scameron@beardog.cce.hp.com>
Cc: Jens Axboe <axboe@kernel.dk>
Cc: Mike Miller <mike.miller@hp.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/block/cciss.c |   32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index b0f553b..d3446f6 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -161,8 +161,6 @@ static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id);
 static int cciss_open(struct block_device *bdev, fmode_t mode);
 static int cciss_unlocked_open(struct block_device *bdev, fmode_t mode);
 static int cciss_release(struct gendisk *disk, fmode_t mode);
-static int do_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned int cmd, unsigned long arg);
 static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
 		       unsigned int cmd, unsigned long arg);
 static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
@@ -229,7 +227,7 @@ static const struct block_device_operations cciss_fops = {
 	.owner = THIS_MODULE,
 	.open = cciss_unlocked_open,
 	.release = cciss_release,
-	.ioctl = do_ioctl,
+	.ioctl = cciss_ioctl,
 	.getgeo = cciss_getgeo,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = cciss_compat_ioctl,
@@ -1140,16 +1138,6 @@ static int cciss_release(struct gendisk *disk, fmode_t mode)
 	return 0;
 }
 
-static int do_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned cmd, unsigned long arg)
-{
-	int ret;
-	mutex_lock(&cciss_mutex);
-	ret = cciss_ioctl(bdev, mode, cmd, arg);
-	mutex_unlock(&cciss_mutex);
-	return ret;
-}
-
 #ifdef CONFIG_COMPAT
 
 static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
@@ -1176,7 +1164,7 @@ static int cciss_compat_ioctl(struct block_device *bdev, fmode_t mode,
 	case CCISS_REGNEWD:
 	case CCISS_RESCANDISK:
 	case CCISS_GETLUNINFO:
-		return do_ioctl(bdev, mode, cmd, arg);
+		return cciss_ioctl(bdev, mode, cmd, arg);
 
 	case CCISS_PASSTHRU32:
 		return cciss_ioctl32_passthru(bdev, mode, cmd, arg);
@@ -1216,7 +1204,7 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
+	err = cciss_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
 	if (err)
 		return err;
 	err |=
@@ -1258,7 +1246,7 @@ static int cciss_ioctl32_big_passthru(struct block_device *bdev, fmode_t mode,
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
+	err = cciss_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
 	if (err)
 		return err;
 	err |=
@@ -1308,11 +1296,14 @@ static int cciss_getpciinfo(ctlr_info_t *h, void __user *argp)
 static int cciss_getintinfo(ctlr_info_t *h, void __user *argp)
 {
 	cciss_coalint_struct intinfo;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	intinfo.delay = readl(&h->cfgtable->HostWrite.CoalIntDelay);
 	intinfo.count = readl(&h->cfgtable->HostWrite.CoalIntCount);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user
 	    (argp, &intinfo, sizeof(cciss_coalint_struct)))
 		return -EFAULT;
@@ -1353,12 +1344,15 @@ static int cciss_setintinfo(ctlr_info_t *h, void __user *argp)
 static int cciss_getnodename(ctlr_info_t *h, void __user *argp)
 {
 	NodeName_type NodeName;
+	unsigned long flags;
 	int i;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	for (i = 0; i < 16; i++)
 		NodeName[i] = readb(&h->cfgtable->ServerName[i]);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, NodeName, sizeof(NodeName_type)))
 		return -EFAULT;
 	return 0;
@@ -1395,10 +1389,13 @@ static int cciss_setnodename(ctlr_info_t *h, void __user *argp)
 static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
 {
 	Heartbeat_type heartbeat;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	heartbeat = readl(&h->cfgtable->HeartBeat);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, &heartbeat, sizeof(Heartbeat_type)))
 		return -EFAULT;
 	return 0;
@@ -1407,10 +1404,13 @@ static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
 static int cciss_getbustypes(ctlr_info_t *h, void __user *argp)
 {
 	BusTypes_type BusTypes;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	BusTypes = readl(&h->cfgtable->BusTypes);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, &BusTypes, sizeof(BusTypes_type)))
 		return -EFAULT;
 	return 0;
-- 
1.7.10.4

[126/141] drm/i915: prefer VBT modes for SVDO-LVDS over EDID

[Steven Rostedt]

[-- Attachment #1: 0126-drm-i915-prefer-VBT-modes-for-SVDO-LVDS-over-EDID.patch --]
[-- Type: text/plain, Size: 2760 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Daniel Vetter <daniel.vetter@ffwll.ch>

[ Upstream commit c3456fb3e4712d0448592af3c5d644c9472cd3c1 ]

In

commit 53d3b4d7778daf15900867336c85d3f8dd70600c
Author: Egbert Eich <eich@suse.de>
Date:   Tue Jun 4 17:13:21 2013 +0200

    drm/i915/sdvo: Use &intel_sdvo->ddc instead of intel_sdvo->i2c for DDC

Egbert Eich fixed a long-standing bug where we simply used a
non-working i2c controller to read the EDID for SDVO-LVDS panels.
Unfortunately some machines seem to not be able to cope with the mode
provided in the EDID. Specifically they seem to not be able to cope
with a 4x pixel mutliplier instead of a 2x one, which seems to have
been worked around by slightly changing the panels native mode in the
VBT so that the dotclock is just barely above 50MHz.

Since it took forever to notice the breakage it's fairly safe to
assume that at least for SDVO-LVDS panels the VBT contains fairly sane
data. So just switch around the order and use VBT modes first.

v2: Also add EDID modes just in case, and spell Egbert correctly.

v3: Elaborate a bit more about what's going on on Chris' machine.

Cc: Egbert Eich <eich@suse.de>
Cc: Chris Wilson <chris@chris-wilson.co.uk>
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=65524
Cc: stable@vger.kernel.org
Reported-and-tested-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/gpu/drm/i915/intel_sdvo.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index 95c0433..2ee6bf1 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1604,10 +1604,13 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 	 * arranged in priority order.
 	 */
 	intel_ddc_get_modes(connector, &intel_sdvo->ddc);
-	if (list_empty(&connector->probed_modes) == false)
-		goto end;
 
-	/* Fetch modes from VBT */
+	/*
+	 * Fetch modes from VBT. For SDVO prefer the VBT mode since some
+	 * SDVO->LVDS transcoders can't cope with the EDID mode. Since
+	 * drm_mode_probed_add adds the mode at the head of the list we add it
+	 * last.
+	 */
 	if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
 		newmode = drm_mode_duplicate(connector->dev,
 					     dev_priv->sdvo_lvds_vbt_mode);
@@ -1619,7 +1622,6 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 		}
 	}
 
-end:
 	list_for_each_entry(newmode, &connector->probed_modes, head) {
 		if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
 			intel_sdvo->sdvo_lvds_fixed_mode =
-- 
1.7.10.4

[127/141] swap: avoid read_swap_cache_async() race to deadlock while waiting on discard I/O completion

[Steven Rostedt]

[-- Attachment #1: 0127-swap-avoid-read_swap_cache_async-race-to-deadlock-wh.patch --]
[-- Type: text/plain, Size: 2727 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Rafael Aquini <aquini@redhat.com>

[ Upstream commit cbab0e4eec299e9059199ebe6daf48730be46d2b ]

read_swap_cache_async() can race against get_swap_page(), and stumble
across a SWAP_HAS_CACHE entry in the swap map whose page wasn't brought
into the swapcache yet.

This transient swap_map state is expected to be transitory, but the
actual placement of discard at scan_swap_map() inserts a wait for I/O
completion thus making the thread at read_swap_cache_async() to loop
around its -EEXIST case, while the other end at get_swap_page() is
scheduled away at scan_swap_map().  This can leave the system deadlocked
if the I/O completion happens to be waiting on the CPU waitqueue where
read_swap_cache_async() is busy looping and !CONFIG_PREEMPT.

This patch introduces a cond_resched() call to make the aforementioned
read_swap_cache_async() busy loop condition to bail out when necessary,
thus avoiding the subtle race window.

Signed-off-by: Rafael Aquini <aquini@redhat.com>
Acked-by: Johannes Weiner <hannes@cmpxchg.org>
Acked-by: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Acked-by: Hugh Dickins <hughd@google.com>
Cc: Shaohua Li <shli@kernel.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 mm/swap_state.c |   18 +++++++++++++++++-
 1 file changed, 17 insertions(+), 1 deletion(-)

diff --git a/mm/swap_state.c b/mm/swap_state.c
index 0cb36fb..f854fbd 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -314,8 +314,24 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
 		 * Swap entry may have been freed since our caller observed it.
 		 */
 		err = swapcache_prepare(entry);
-		if (err == -EEXIST) {	/* seems racy */
+		if (err == -EEXIST) {
 			radix_tree_preload_end();
+			/*
+			 * We might race against get_swap_page() and stumble
+			 * across a SWAP_HAS_CACHE swap_map entry whose page
+			 * has not been brought into the swapcache yet, while
+			 * the other end is scheduled away waiting on discard
+			 * I/O completion at scan_swap_map().
+			 *
+			 * In order to avoid turning this transitory state
+			 * into a permanent loop around this -EEXIST case
+			 * if !CONFIG_PREEMPT and the I/O completion happens
+			 * to be waiting on the CPU waitqueue where we are now
+			 * busy looping, we just conditionally invoke the
+			 * scheduler here, if there are some more important
+			 * tasks to run.
+			 */
+			cond_resched();
 			continue;
 		}
 		if (err) {		/* swp entry is obsolete ? */
-- 
1.7.10.4

[128/141] md/raid1: consider WRITE as successful only if at least one non-Faulty and non-rebuilding drive completed it.

[Steven Rostedt]

[-- Attachment #1: 0128-md-raid1-consider-WRITE-as-successful-only-if-at-lea.patch --]
[-- Type: text/plain, Size: 3454 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Alex Lyakas <alex@zadarastorage.com>

[ Upstream commit 3056e3aec8d8ba61a0710fb78b2d562600aa2ea7 ]

Without that fix, the following scenario could happen:

- RAID1 with drives A and B; drive B was freshly-added and is rebuilding
- Drive A fails
- WRITE request arrives to the array. It is failed by drive A, so
r1_bio is marked as R1BIO_WriteError, but the rebuilding drive B
succeeds in writing it, so the same r1_bio is marked as
R1BIO_Uptodate.
- r1_bio arrives to handle_write_finished, badblocks are disabled,
md_error()->error() does nothing because we don't fail the last drive
of raid1
- raid_end_bio_io()  calls call_bio_endio()
- As a result, in call_bio_endio():
        if (!test_bit(R1BIO_Uptodate, &r1_bio->state))
                clear_bit(BIO_UPTODATE, &bio->bi_flags);
this code doesn't clear the BIO_UPTODATE flag, and the whole master
WRITE succeeds, back to the upper layer.

So we returned success to the upper layer, even though we had written
the data onto the rebuilding drive only. But when we want to read the
data back, we would not read from the rebuilding drive, so this data
is lost.

[neilb - applied identical change to raid10 as well]

This bug can result in lost data, so it is suitable for any
-stable kernel.

Cc: stable@vger.kernel.org
Signed-off-by: Alex Lyakas <alex@zadarastorage.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/md/raid1.c  |   12 +++++++++++-
 drivers/md/raid10.c |   12 +++++++++++-
 2 files changed, 22 insertions(+), 2 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 36c6003..cda27cb 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -427,7 +427,17 @@ static void raid1_end_write_request(struct bio *bio, int error)
 
 		r1_bio->bios[mirror] = NULL;
 		to_put = bio;
-		set_bit(R1BIO_Uptodate, &r1_bio->state);
+		/*
+		 * Do not set R1BIO_Uptodate if the current device is
+		 * rebuilding or Faulty. This is because we cannot use
+		 * such device for properly reading the data back (we could
+		 * potentially use it, if the current write would have felt
+		 * before rdev->recovery_offset, but for simplicity we don't
+		 * check this here.
+		 */
+		if (test_bit(In_sync, &conf->mirrors[mirror].rdev->flags) &&
+		    !test_bit(Faulty, &conf->mirrors[mirror].rdev->flags))
+			set_bit(R1BIO_Uptodate, &r1_bio->state);
 
 		/* Maybe we can clear some bad blocks. */
 		if (is_badblock(conf->mirrors[mirror].rdev,
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index bec9db8..5c3fb0b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -475,7 +475,17 @@ static void raid10_end_write_request(struct bio *bio, int error)
 		sector_t first_bad;
 		int bad_sectors;
 
-		set_bit(R10BIO_Uptodate, &r10_bio->state);
+		/*
+		 * Do not set R10BIO_Uptodate if the current device is
+		 * rebuilding or Faulty. This is because we cannot use
+		 * such device for properly reading the data back (we could
+		 * potentially use it, if the current write would have felt
+		 * before rdev->recovery_offset, but for simplicity we don't
+		 * check this here.
+		 */
+		if (test_bit(In_sync, &rdev->flags) &&
+		    !test_bit(Faulty, &rdev->flags))
+			set_bit(R10BIO_Uptodate, &r10_bio->state);
 
 		/* Maybe we can clear some bad blocks. */
 		if (is_badblock(rdev,
-- 
1.7.10.4

[129/141] md/raid1,raid10: use freeze_array in place of raise_barrier in various places.

[Steven Rostedt]

[-- Attachment #1: 0129-md-raid1-raid10-use-freeze_array-in-place-of-raise_b.patch --]
[-- Type: text/plain, Size: 6432 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: NeilBrown <neilb@suse.de>

[ Upstream commit e2d59925221cd562e07fee38ec8839f7209ae603 ]

Various places in raid1 and raid10 are calling raise_barrier when they
really should call freeze_array.
The former is only intended to be called from "make_request".
The later has extra checks for 'nr_queued' and makes a call to
flush_pending_writes(), so it is safe to call it from within the
management thread.

Using raise_barrier will sometimes deadlock.  Using freeze_array
should not.

As 'freeze_array' currently expects one request to be pending (in
handle_read_error - the only previous caller), we need to pass
it the number of pending requests (extra) to ignore.

The deadlock was made particularly noticeable by commits
050b66152f87c7 (raid10) and 6b740b8d79252f13 (raid1) which
appeared in 3.4, so the fix is appropriate for any -stable
kernel since then.

This patch probably won't apply directly to some early kernels and
will need to be applied by hand.

Cc: stable@vger.kernel.org
Reported-by: Alexander Lyakas <alex.bolshoy@gmail.com>
Signed-off-by: NeilBrown <neilb@suse.de>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/md/raid1.c  |   22 +++++++++++-----------
 drivers/md/raid10.c |   14 +++++++-------
 2 files changed, 18 insertions(+), 18 deletions(-)

diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index cda27cb..4347a70 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -886,17 +886,17 @@ static void allow_barrier(struct r1conf *conf)
 	wake_up(&conf->wait_barrier);
 }
 
-static void freeze_array(struct r1conf *conf)
+static void freeze_array(struct r1conf *conf, int extra)
 {
 	/* stop syncio and normal IO and wait for everything to
 	 * go quite.
 	 * We increment barrier and nr_waiting, and then
-	 * wait until nr_pending match nr_queued+1
+	 * wait until nr_pending match nr_queued+extra
 	 * This is called in the context of one normal IO request
 	 * that has failed. Thus any sync request that might be pending
 	 * will be blocked by nr_pending, and we need to wait for
 	 * pending IO requests to complete or be queued for re-try.
-	 * Thus the number queued (nr_queued) plus this request (1)
+	 * Thus the number queued (nr_queued) plus this request (extra)
 	 * must match the number of pending IOs (nr_pending) before
 	 * we continue.
 	 */
@@ -904,7 +904,7 @@ static void freeze_array(struct r1conf *conf)
 	conf->barrier++;
 	conf->nr_waiting++;
 	wait_event_lock_irq(conf->wait_barrier,
-			    conf->nr_pending == conf->nr_queued+1,
+			    conf->nr_pending == conf->nr_queued+extra,
 			    conf->resync_lock,
 			    flush_pending_writes(conf));
 	spin_unlock_irq(&conf->resync_lock);
@@ -1559,8 +1559,8 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 		 * we wait for all outstanding requests to complete.
 		 */
 		synchronize_sched();
-		raise_barrier(conf);
-		lower_barrier(conf);
+		freeze_array(conf, 0);
+		unfreeze_array(conf);
 		clear_bit(Unmerged, &rdev->flags);
 	}
 	md_integrity_add_rdev(rdev, mddev);
@@ -1608,11 +1608,11 @@ static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
 			 */
 			struct md_rdev *repl =
 				conf->mirrors[conf->raid_disks + number].rdev;
-			raise_barrier(conf);
+			freeze_array(conf, 0);
 			clear_bit(Replacement, &repl->flags);
 			p->rdev = repl;
 			conf->mirrors[conf->raid_disks + number].rdev = NULL;
-			lower_barrier(conf);
+			unfreeze_array(conf);
 			clear_bit(WantReplacement, &rdev->flags);
 		} else
 			clear_bit(WantReplacement, &rdev->flags);
@@ -2229,7 +2229,7 @@ static void handle_read_error(struct r1conf *conf, struct r1bio *r1_bio)
 	 * frozen
 	 */
 	if (mddev->ro == 0) {
-		freeze_array(conf);
+		freeze_array(conf, 1);
 		fix_read_error(conf, r1_bio->read_disk,
 			       r1_bio->sector, r1_bio->sectors);
 		unfreeze_array(conf);
@@ -2993,7 +2993,7 @@ static int raid1_reshape(struct mddev *mddev)
 		return -ENOMEM;
 	}
 
-	raise_barrier(conf);
+	freeze_array(conf, 0);
 
 	/* ok, everything is stopped */
 	oldpool = conf->r1bio_pool;
@@ -3024,7 +3024,7 @@ static int raid1_reshape(struct mddev *mddev)
 	conf->raid_disks = mddev->raid_disks = raid_disks;
 	mddev->delta_disks = 0;
 
-	lower_barrier(conf);
+	unfreeze_array(conf);
 
 	set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
 	md_wakeup_thread(mddev->thread);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index 5c3fb0b..cd7394b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -1021,17 +1021,17 @@ static void allow_barrier(struct r10conf *conf)
 	wake_up(&conf->wait_barrier);
 }
 
-static void freeze_array(struct r10conf *conf)
+static void freeze_array(struct r10conf *conf, int extra)
 {
 	/* stop syncio and normal IO and wait for everything to
 	 * go quiet.
 	 * We increment barrier and nr_waiting, and then
-	 * wait until nr_pending match nr_queued+1
+	 * wait until nr_pending match nr_queued+extra
 	 * This is called in the context of one normal IO request
 	 * that has failed. Thus any sync request that might be pending
 	 * will be blocked by nr_pending, and we need to wait for
 	 * pending IO requests to complete or be queued for re-try.
-	 * Thus the number queued (nr_queued) plus this request (1)
+	 * Thus the number queued (nr_queued) plus this request (extra)
 	 * must match the number of pending IOs (nr_pending) before
 	 * we continue.
 	 */
@@ -1039,7 +1039,7 @@ static void freeze_array(struct r10conf *conf)
 	conf->barrier++;
 	conf->nr_waiting++;
 	wait_event_lock_irq(conf->wait_barrier,
-			    conf->nr_pending == conf->nr_queued+1,
+			    conf->nr_pending == conf->nr_queued+extra,
 			    conf->resync_lock,
 			    flush_pending_writes(conf));
 
@@ -1740,8 +1740,8 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 		 * we wait for all outstanding requests to complete.
 		 */
 		synchronize_sched();
-		raise_barrier(conf, 0);
-		lower_barrier(conf);
+		freeze_array(conf, 0);
+		unfreeze_array(conf);
 		clear_bit(Unmerged, &rdev->flags);
 	}
 	md_integrity_add_rdev(rdev, mddev);
@@ -2534,7 +2534,7 @@ static void handle_read_error(struct mddev *mddev, struct r10bio *r10_bio)
 	r10_bio->devs[slot].bio = NULL;
 
 	if (mddev->ro == 0) {
-		freeze_array(conf);
+		freeze_array(conf, 1);
 		fix_read_error(conf, mddev, r10_bio);
 		unfreeze_array(conf);
 	} else
-- 
1.7.10.4

[130/141] mm: migration: add migrate_entry_wait_huge()

[Steven Rostedt]

[-- Attachment #1: 0130-mm-migration-add-migrate_entry_wait_huge.patch --]
[-- Type: text/plain, Size: 4192 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>

[ Upstream commit 30dad30922ccc733cfdbfe232090cf674dc374dc ]

When we have a page fault for the address which is backed by a hugepage
under migration, the kernel can't wait correctly and do busy looping on
hugepage fault until the migration finishes.  As a result, users who try
to kick hugepage migration (via soft offlining, for example) occasionally
experience long delay or soft lockup.

This is because pte_offset_map_lock() can't get a correct migration entry
or a correct page table lock for hugepage.  This patch introduces
migration_entry_wait_huge() to solve this.

Signed-off-by: Naoya Horiguchi <n-horiguchi@ah.jp.nec.com>
Reviewed-by: Rik van Riel <riel@redhat.com>
Reviewed-by: Wanpeng Li <liwanp@linux.vnet.ibm.com>
Reviewed-by: Michal Hocko <mhocko@suse.cz>
Cc: Mel Gorman <mgorman@suse.de>
Cc: Andi Kleen <andi@firstfloor.org>
Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com>
Cc: <stable@vger.kernel.org>	[2.6.35+]
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/swapops.h |    3 +++
 mm/hugetlb.c            |    2 +-
 mm/migrate.c            |   23 ++++++++++++++++++-----
 3 files changed, 22 insertions(+), 6 deletions(-)

diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 47ead51..c5fd30d 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -137,6 +137,7 @@ static inline void make_migration_entry_read(swp_entry_t *entry)
 
 extern void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 					unsigned long address);
+extern void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte);
 #else
 
 #define make_migration_entry(page, write) swp_entry(0, 0)
@@ -148,6 +149,8 @@ static inline int is_migration_entry(swp_entry_t swp)
 static inline void make_migration_entry_read(swp_entry_t *entryp) { }
 static inline void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 					 unsigned long address) { }
+static inline void migration_entry_wait_huge(struct mm_struct *mm,
+					pte_t *pte) { }
 static inline int is_write_migration_entry(swp_entry_t entry)
 {
 	return 0;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0bf06e9..7e5ff99 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2825,7 +2825,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (ptep) {
 		entry = huge_ptep_get(ptep);
 		if (unlikely(is_hugetlb_entry_migration(entry))) {
-			migration_entry_wait(mm, (pmd_t *)ptep, address);
+			migration_entry_wait_huge(mm, ptep);
 			return 0;
 		} else if (unlikely(is_hugetlb_entry_hwpoisoned(entry)))
 			return VM_FAULT_HWPOISON_LARGE |
diff --git a/mm/migrate.c b/mm/migrate.c
index a303524..733aa9f 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -181,15 +181,14 @@ static void remove_migration_ptes(struct page *old, struct page *new)
  * get to the page and wait until migration is finished.
  * When we return from this function the fault will be retried.
  */
-void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
-				unsigned long address)
+static void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep,
+				spinlock_t *ptl)
 {
-	pte_t *ptep, pte;
-	spinlock_t *ptl;
+	pte_t pte;
 	swp_entry_t entry;
 	struct page *page;
 
-	ptep = pte_offset_map_lock(mm, pmd, address, &ptl);
+	spin_lock(ptl);
 	pte = *ptep;
 	if (!is_swap_pte(pte))
 		goto out;
@@ -217,6 +216,20 @@ out:
 	pte_unmap_unlock(ptep, ptl);
 }
 
+void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
+				unsigned long address)
+{
+	spinlock_t *ptl = pte_lockptr(mm, pmd);
+	pte_t *ptep = pte_offset_map(pmd, address);
+	__migration_entry_wait(mm, ptep, ptl);
+}
+
+void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte)
+{
+	spinlock_t *ptl = &(mm)->page_table_lock;
+	__migration_entry_wait(mm, pte, ptl);
+}
+
 #ifdef CONFIG_BLOCK
 /* Returns true if all buffers are successfully locked */
 static bool buffer_migrate_lock_buffers(struct buffer_head *head,
-- 
1.7.10.4

[131/141] x86: Fix typo in kexec register clearing

[Steven Rostedt]

[-- Attachment #1: 0131-x86-Fix-typo-in-kexec-register-clearing.patch --]
[-- Type: text/plain, Size: 1126 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Kees Cook <keescook@chromium.org>

[ Upstream commit c8a22d19dd238ede87aa0ac4f7dbea8da039b9c1 ]

Fixes a typo in register clearing code. Thanks to PaX Team for fixing
this originally, and James Troup for pointing it out.

Signed-off-by: Kees Cook <keescook@chromium.org>
Link: http://lkml.kernel.org/r/20130605184718.GA8396@www.outflux.net
Cc: <stable@vger.kernel.org> v2.6.30+
Cc: PaX Team <pageexec@freemail.hu>
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/x86/kernel/relocate_kernel_64.S |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 7a6f3b3..f2bb9c9 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -160,7 +160,7 @@ identity_mapped:
 	xorq    %rbp, %rbp
 	xorq	%r8,  %r8
 	xorq	%r9,  %r9
-	xorq	%r10, %r9
+	xorq	%r10, %r10
 	xorq	%r11, %r11
 	xorq	%r12, %r12
 	xorq	%r13, %r13
-- 
1.7.10.4

[132/141] libceph: clear messenger auth_retry flag when we authenticate

[Steven Rostedt]

[-- Attachment #1: 0132-libceph-clear-messenger-auth_retry-flag-when-we-auth.patch --]
[-- Type: text/plain, Size: 1550 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sage Weil <sage@inktank.com>

[ Upstream commit 20e55c4cc758e4dccdfd92ae8e9588dd624b2cd7 ]

We maintain a counter of failed auth attempts to allow us to retry once
before failing.  However, if the second attempt succeeds, the flag isn't
cleared, which makes us think auth failed again later when the connection
resets for other reasons (like a socket error).

This is one part of the sorry sequence of events in bug

	http://tracker.ceph.com/issues/4282

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/ceph/messenger.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 3ef1759..c245379 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1552,7 +1552,6 @@ static int process_connect(struct ceph_connection *con)
 			con->error_msg = "connect authorization failure";
 			return -1;
 		}
-		con->auth_retry = 1;
 		con_out_kvec_reset(con);
 		ret = prepare_write_connect(con);
 		if (ret < 0)
@@ -1637,7 +1636,7 @@ static int process_connect(struct ceph_connection *con)
 
 		BUG_ON(con->state != CON_STATE_NEGOTIATING);
 		con->state = CON_STATE_OPEN;
-
+		con->auth_retry = 0;    /* we authenticated; clear flag */
 		con->peer_global_seq = le32_to_cpu(con->in_reply.global_seq);
 		con->connect_seq++;
 		con->peer_features = server_feat;
-- 
1.7.10.4

[133/141] libceph: fix authorizer invalidation

[Steven Rostedt]

[-- Attachment #1: 0133-libceph-fix-authorizer-invalidation.patch --]
[-- Type: text/plain, Size: 1639 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sage Weil <sage@inktank.com>

[ Upstream commit 4b8e8b5d78b8322351d44487c1b76f7e9d3412bc ]

We were invalidating the authorizer by removing the ticket handler
entirely.  This was effective in inducing us to request a new authorizer,
but in the meantime it mean that any authorizer we generated would get a
new and initialized handler with secret_id=0, which would always be
rejected by the server side with a confusing error message:

 auth: could not find secret_id=0
 cephx: verify_authorizer could not get service secret for service osd secret_id=0

Instead, simply clear the validity field.  This will still induce the auth
code to request a new secret, but will let us continue to use the old
ticket in the meantime.  The messenger code will probably continue to fail,
but the exponential backoff will kick in, and eventually the we will get a
new (hopefully more valid) ticket from the mon and be able to continue.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 net/ceph/auth_x.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index a16bf14..bd8758d 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -630,7 +630,7 @@ static void ceph_x_invalidate_authorizer(struct ceph_auth_client *ac,
 
 	th = get_ticket_handler(ac, peer_type);
 	if (!IS_ERR(th))
-		remove_ticket_handler(ac, th);
+		memset(&th->validity, 0, sizeof(th->validity));
 }
 
 
-- 
1.7.10.4

[134/141] libceph: add update_authorizer auth method

[Steven Rostedt]

[-- Attachment #1: 0134-libceph-add-update_authorizer-auth-method.patch --]
[-- Type: text/plain, Size: 4993 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sage Weil <sage@inktank.com>

[ Upstream commit 0bed9b5c523d577378b6f83eab5835fe30c27208 ]

Currently the messenger calls out to a get_authorizer con op, which will
create a new authorizer if it doesn't yet have one.  In the meantime, when
we rotate our service keys, the authorizer doesn't get updated.  Eventually
it will be rejected by the server on a new connection attempt and get
invalidated, and we will then rebuild a new authorizer, but this is not
ideal.

Instead, if we do have an authorizer, call a new update_authorizer op that
will verify that the current authorizer is using the latest secret.  If it
is not, we will build a new one that does.  This avoids the transient
failure.

This fixes one of the sorry sequence of events for bug

	http://tracker.ceph.com/issues/4282

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ceph/mds_client.c      |    7 ++++++-
 include/linux/ceph/auth.h |    3 +++
 net/ceph/auth_x.c         |   23 +++++++++++++++++++++++
 net/ceph/auth_x.h         |    1 +
 net/ceph/osd_client.c     |    5 +++++
 5 files changed, 38 insertions(+), 1 deletion(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index b254e7a..2553d93 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -3410,7 +3410,12 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
 	}
 	if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
 		int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
-							auth);
+						     auth);
+		if (ret)
+			return ERR_PTR(ret);
+	} else if (ac->ops && ac->ops_update_authorizer) {
+		int ret = ac->ops->update_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
+						     auth);
 		if (ret)
 			return ERR_PTR(ret);
 	}
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index d4080f3..73e973e 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -52,6 +52,9 @@ struct ceph_auth_client_ops {
 	 */
 	int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type,
 				 struct ceph_auth_handshake *auth);
+	/* ensure that an existing authorizer is up to date */
+	int (*update_authorizer)(struct ceph_auth_client *ac, int peer_type,
+				 struct ceph_auth_handshake *auth);
 	int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
 				       struct ceph_authorizer *a, size_t len);
 	void (*destroy_authorizer)(struct ceph_auth_client *ac,
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index bd8758d..2d59815 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -298,6 +298,7 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
 			return -ENOMEM;
 	}
 	au->service = th->service;
+	au->secret_id = th->secret_id;
 
 	msg_a = au->buf->vec.iov_base;
 	msg_a->struct_v = 1;
@@ -555,6 +556,27 @@ static int ceph_x_create_authorizer(
 	return 0;
 }
 
+static int ceph_x_update_authorizer(
+	struct ceph_auth_client *ac, int peer_type,
+	struct ceph_auth_handshake *auth)
+{
+	struct ceph_x_authorizer *au;
+	struct ceph_x_ticket_handler *th;
+	int ret;
+
+	th = get_ticket_handler(ac, peer_type);
+	if (IS_ERR(th))
+		return PTR_ERR(th);
+
+	au = (struct ceph_x_authorizer *)auth->authorizer;
+	if (au->secret_id < th->secret_id) {
+		dout("ceph_x_update_authorizer service %u secret %llu < %llu\n",
+		     au->service, au->secret_id, th->secret_id);
+		return ceph_x_build_authorizer(ac, th, au);
+	}
+	return 0;
+}
+
 static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac,
 					  struct ceph_authorizer *a, size_t len)
 {
@@ -641,6 +663,7 @@ static const struct ceph_auth_client_ops ceph_x_ops = {
 	.build_request = ceph_x_build_request,
 	.handle_reply = ceph_x_handle_reply,
 	.create_authorizer = ceph_x_create_authorizer,
+	.update_authorizer = ceph_x_update_authorizer,
 	.verify_authorizer_reply = ceph_x_verify_authorizer_reply,
 	.destroy_authorizer = ceph_x_destroy_authorizer,
 	.invalidate_authorizer = ceph_x_invalidate_authorizer,
diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h
index f459e93..c5a058d 100644
--- a/net/ceph/auth_x.h
+++ b/net/ceph/auth_x.h
@@ -29,6 +29,7 @@ struct ceph_x_authorizer {
 	struct ceph_buffer *buf;
 	unsigned int service;
 	u64 nonce;
+	u64 secret_id;
 	char reply_buf[128];  /* big enough for encrypted blob */
 };
 
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index f7b56e2..dcb7fe2 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -2163,6 +2163,11 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
 							auth);
 		if (ret)
 			return ERR_PTR(ret);
+	} else if (ac->ops && ac->ops->update_authorizer) {
+		int ret = ac->ops->update_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+						     auth);
+		if (ret)
+			return ERR_PTR(ret);
 	}
 	*proto = ac->protocol;
 
-- 
1.7.10.4

[135/141] libceph: wrap auth ops in wrapper functions

[Steven Rostedt]

[-- Attachment #1: 0135-libceph-wrap-auth-ops-in-wrapper-functions.patch --]
[-- Type: text/plain, Size: 9965 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sage Weil <sage@inktank.com>

[ Upstream commit 27859f9773e4a0b2042435b13400ee2c891a61f4 ]

Use wrapper functions that check whether the auth op exists so that callers
do not need a bunch of conditional checks.  Simplifies the external
interface.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 fs/ceph/mds_client.c      |   26 ++++++++++++-------------
 include/linux/ceph/auth.h |   13 +++++++++++++
 net/ceph/auth.c           |   47 +++++++++++++++++++++++++++++++++++++++++++++
 net/ceph/auth_x.c         |    1 -
 net/ceph/mon_client.c     |    7 +++----
 net/ceph/osd_client.c     |   26 +++++++++----------------
 6 files changed, 84 insertions(+), 36 deletions(-)

diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 2553d93..7b500bb 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -336,9 +336,9 @@ void ceph_put_mds_session(struct ceph_mds_session *s)
 	     atomic_read(&s->s_ref), atomic_read(&s->s_ref)-1);
 	if (atomic_dec_and_test(&s->s_ref)) {
 		if (s->s_auth.authorizer)
-		     s->s_mdsc->fsc->client->monc.auth->ops->destroy_authorizer(
-			     s->s_mdsc->fsc->client->monc.auth,
-			     s->s_auth.authorizer);
+			ceph_auth_destroy_authorizer(
+				s->s_mdsc->fsc->client->monc.auth,
+				s->s_auth.authorizer);
 		kfree(s);
 	}
 }
@@ -3404,18 +3404,17 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
 	struct ceph_auth_handshake *auth = &s->s_auth;
 
 	if (force_new && auth->authorizer) {
-		if (ac->ops && ac->ops->destroy_authorizer)
-			ac->ops->destroy_authorizer(ac, auth->authorizer);
+		ceph_auth_destroy_authorizer(ac, auth->authorizer);
 		auth->authorizer = NULL;
 	}
-	if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
-		int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
-						     auth);
+	if (!auth->authorizer) {
+		int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
+						      auth);
 		if (ret)
 			return ERR_PTR(ret);
-	} else if (ac->ops && ac->ops_update_authorizer) {
-		int ret = ac->ops->update_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
-						     auth);
+	} else {
+		int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
+						      auth);
 		if (ret)
 			return ERR_PTR(ret);
 	}
@@ -3431,7 +3430,7 @@ static int verify_authorizer_reply(struct ceph_connection *con, int len)
 	struct ceph_mds_client *mdsc = s->s_mdsc;
 	struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
 
-	return ac->ops->verify_authorizer_reply(ac, s->s_auth.authorizer, len);
+	return ceph_auth_verify_authorizer_reply(ac, s->s_auth.authorizer, len);
 }
 
 static int invalidate_authorizer(struct ceph_connection *con)
@@ -3440,8 +3439,7 @@ static int invalidate_authorizer(struct ceph_connection *con)
 	struct ceph_mds_client *mdsc = s->s_mdsc;
 	struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
 
-	if (ac->ops->invalidate_authorizer)
-		ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_MDS);
+	ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_MDS);
 
 	return ceph_monc_validate_auth(&mdsc->fsc->client->monc);
 }
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index 73e973e..c9c3b3a 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -97,5 +97,18 @@ extern int ceph_build_auth(struct ceph_auth_client *ac,
 		    void *msg_buf, size_t msg_len);
 
 extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac);
+extern int ceph_auth_create_authorizer(struct ceph_auth_client *ac,
+				       int peer_type,
+				       struct ceph_auth_handshake *auth);
+extern void ceph_auth_destroy_authorizer(struct ceph_auth_client *ac,
+					 struct ceph_authorizer *a);
+extern int ceph_auth_update_authorizer(struct ceph_auth_client *ac,
+				       int peer_type,
+				       struct ceph_auth_handshake *a);
+extern int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
+					     struct ceph_authorizer *a,
+					     size_t len);
+extern void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac,
+					    int peer_type);
 
 #endif
diff --git a/net/ceph/auth.c b/net/ceph/auth.c
index b4bf4ac..a22de54 100644
--- a/net/ceph/auth.c
+++ b/net/ceph/auth.c
@@ -257,3 +257,50 @@ int ceph_auth_is_authenticated(struct ceph_auth_client *ac)
 		return 0;
 	return ac->ops->is_authenticated(ac);
 }
+EXPORT_SYMBOL(ceph_auth_is_authenticated);
+
+int ceph_auth_create_authorizer(struct ceph_auth_client *ac,
+				int peer_type,
+				struct ceph_auth_handshake *auth)
+{
+	if (ac->ops && ac->ops->create_authorizer)
+		return ac->ops->create_authorizer(ac, peer_type, auth);
+	return 0;
+}
+EXPORT_SYMBOL(ceph_auth_create_authorizer);
+
+void ceph_auth_destroy_authorizer(struct ceph_auth_client *ac,
+				  struct ceph_authorizer *a)
+{
+	if (ac->ops && ac->ops->destroy_authorizer)
+		ac->ops->destroy_authorizer(ac, a);
+}
+EXPORT_SYMBOL(ceph_auth_destroy_authorizer);
+
+int ceph_auth_update_authorizer(struct ceph_auth_client *ac,
+				int peer_type,
+				struct ceph_auth_handshake *a)
+{
+	int ret = 0;
+
+	if (ac->ops && ac->ops->update_authorizer)
+		ret = ac->ops->update_authorizer(ac, peer_type, a);
+	return ret;
+}
+EXPORT_SYMBOL(ceph_auth_update_authorizer);
+
+int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
+				      struct ceph_authorizer *a, size_t len)
+{
+	if (ac->ops && ac->ops->verify_authorizer_reply)
+		return ac->ops->verify_authorizer_reply(ac, a, len);
+	return 0;
+}
+EXPORT_SYMBOL(ceph_auth_verify_authorizer_reply);
+
+void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac, int peer_type)
+{
+	if (ac->ops && ac->ops->invalidate_authorizer)
+		ac->ops->invalidate_authorizer(ac, peer_type);
+}
+EXPORT_SYMBOL(ceph_auth_invalidate_authorizer);
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index 2d59815..96238ba 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -562,7 +562,6 @@ static int ceph_x_update_authorizer(
 {
 	struct ceph_x_authorizer *au;
 	struct ceph_x_ticket_handler *th;
-	int ret;
 
 	th = get_ticket_handler(ac, peer_type);
 	if (IS_ERR(th))
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 900ea0f..8a9235d 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -737,7 +737,7 @@ static void delayed_work(struct work_struct *work)
 
 		__validate_auth(monc);
 
-		if (monc->auth->ops->is_authenticated(monc->auth))
+		if (ceph_auth_is_authenticated(monc->auth))
 			__send_subscribe(monc);
 	}
 	__schedule_delayed(monc);
@@ -893,8 +893,7 @@ static void handle_auth_reply(struct ceph_mon_client *monc,
 
 	mutex_lock(&monc->mutex);
 	had_debugfs_info = have_debugfs_info(monc);
-	if (monc->auth->ops)
-		was_auth = monc->auth->ops->is_authenticated(monc->auth);
+	was_auth = ceph_auth_is_authenticated(monc->auth);
 	monc->pending_auth = 0;
 	ret = ceph_handle_auth_reply(monc->auth, msg->front.iov_base,
 				     msg->front.iov_len,
@@ -905,7 +904,7 @@ static void handle_auth_reply(struct ceph_mon_client *monc,
 		wake_up_all(&monc->client->auth_wq);
 	} else if (ret > 0) {
 		__send_prepared_auth_request(monc, ret);
-	} else if (!was_auth && monc->auth->ops->is_authenticated(monc->auth)) {
+	} else if (!was_auth && ceph_auth_is_authenticated(monc->auth)) {
 		dout("authenticated, starting session\n");
 
 		monc->client->msgr.inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index dcb7fe2..c9b179d 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -675,8 +675,7 @@ static void put_osd(struct ceph_osd *osd)
 	if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) {
 		struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth;
 
-		if (ac->ops && ac->ops->destroy_authorizer)
-			ac->ops->destroy_authorizer(ac, osd->o_auth.authorizer);
+		ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer);
 		kfree(osd);
 	}
 }
@@ -2154,17 +2153,16 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
 	struct ceph_auth_handshake *auth = &o->o_auth;
 
 	if (force_new && auth->authorizer) {
-		if (ac->ops && ac->ops->destroy_authorizer)
-			ac->ops->destroy_authorizer(ac, auth->authorizer);
+		ceph_auth_destroy_authorizer(ac, auth->authorizer);
 		auth->authorizer = NULL;
 	}
-	if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
-		int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
-							auth);
+	if (!auth->authorizer) {
+		int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+						      auth);
 		if (ret)
 			return ERR_PTR(ret);
-	} else if (ac->ops && ac->ops->update_authorizer) {
-		int ret = ac->ops->update_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+	} else {
+		int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
 						     auth);
 		if (ret)
 			return ERR_PTR(ret);
@@ -2181,11 +2179,7 @@ static int verify_authorizer_reply(struct ceph_connection *con, int len)
 	struct ceph_osd_client *osdc = o->o_osdc;
 	struct ceph_auth_client *ac = osdc->client->monc.auth;
 
-	/*
-	 * XXX If ac->ops or ac->ops->verify_authorizer_reply is null,
-	 * XXX which do we do:  succeed or fail?
-	 */
-	return ac->ops->verify_authorizer_reply(ac, o->o_auth.authorizer, len);
+	return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len);
 }
 
 static int invalidate_authorizer(struct ceph_connection *con)
@@ -2194,9 +2188,7 @@ static int invalidate_authorizer(struct ceph_connection *con)
 	struct ceph_osd_client *osdc = o->o_osdc;
 	struct ceph_auth_client *ac = osdc->client->monc.auth;
 
-	if (ac->ops && ac->ops->invalidate_authorizer)
-		ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
-
+	ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
 	return ceph_monc_validate_auth(&osdc->client->monc);
 }
 
-- 
1.7.10.4

[136/141] libceph: wrap auth methods in a mutex

[Steven Rostedt]

[-- Attachment #1: 0136-libceph-wrap-auth-methods-in-a-mutex.patch --]
[-- Type: text/plain, Size: 6751 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Sage Weil <sage@inktank.com>

[ Upstream commit e9966076cdd952e19f2dd4854cd719be0d7cbebc ]

The auth code is called from a variety of contexts, include the mon_client
(protected by the monc's mutex) and the messenger callbacks (currently
protected by nothing).  Avoid chaos by protecting all auth state with a
mutex.  Nothing is blocking, so this should be simple and lightweight.

Signed-off-by: Sage Weil <sage@inktank.com>
Reviewed-by: Alex Elder <elder@inktank.com>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 include/linux/ceph/auth.h |    2 ++
 net/ceph/auth.c           |   78 ++++++++++++++++++++++++++++++++-------------
 2 files changed, 58 insertions(+), 22 deletions(-)

diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index c9c3b3a..5f33868 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -78,6 +78,8 @@ struct ceph_auth_client {
 	u64 global_id;          /* our unique id in system */
 	const struct ceph_crypto_key *key;     /* our secret key */
 	unsigned want_keys;     /* which services we want */
+
+	struct mutex mutex;
 };
 
 extern struct ceph_auth_client *ceph_auth_init(const char *name,
diff --git a/net/ceph/auth.c b/net/ceph/auth.c
index a22de54..6b923bc 100644
--- a/net/ceph/auth.c
+++ b/net/ceph/auth.c
@@ -47,6 +47,7 @@ struct ceph_auth_client *ceph_auth_init(const char *name, const struct ceph_cryp
 	if (!ac)
 		goto out;
 
+	mutex_init(&ac->mutex);
 	ac->negotiating = true;
 	if (name)
 		ac->name = name;
@@ -73,10 +74,12 @@ void ceph_auth_destroy(struct ceph_auth_client *ac)
  */
 void ceph_auth_reset(struct ceph_auth_client *ac)
 {
+	mutex_lock(&ac->mutex);
 	dout("auth_reset %p\n", ac);
 	if (ac->ops && !ac->negotiating)
 		ac->ops->reset(ac);
 	ac->negotiating = true;
+	mutex_unlock(&ac->mutex);
 }
 
 int ceph_entity_name_encode(const char *name, void **p, void *end)
@@ -102,6 +105,7 @@ int ceph_auth_build_hello(struct ceph_auth_client *ac, void *buf, size_t len)
 	int i, num;
 	int ret;
 
+	mutex_lock(&ac->mutex);
 	dout("auth_build_hello\n");
 	monhdr->have_version = 0;
 	monhdr->session_mon = cpu_to_le16(-1);
@@ -122,15 +126,19 @@ int ceph_auth_build_hello(struct ceph_auth_client *ac, void *buf, size_t len)
 
 	ret = ceph_entity_name_encode(ac->name, &p, end);
 	if (ret < 0)
-		return ret;
+		goto out;
 	ceph_decode_need(&p, end, sizeof(u64), bad);
 	ceph_encode_64(&p, ac->global_id);
 
 	ceph_encode_32(&lenp, p - lenp - sizeof(u32));
-	return p - buf;
+	ret = p - buf;
+out:
+	mutex_unlock(&ac->mutex);
+	return ret;
 
 bad:
-	return -ERANGE;
+	ret = -ERANGE;
+	goto out;
 }
 
 static int ceph_build_auth_request(struct ceph_auth_client *ac,
@@ -151,11 +159,13 @@ static int ceph_build_auth_request(struct ceph_auth_client *ac,
 	if (ret < 0) {
 		pr_err("error %d building auth method %s request\n", ret,
 		       ac->ops->name);
-		return ret;
+		goto out;
 	}
 	dout(" built request %d bytes\n", ret);
 	ceph_encode_32(&p, ret);
-	return p + ret - msg_buf;
+	ret = p + ret - msg_buf;
+out:
+	return ret;
 }
 
 /*
@@ -176,6 +186,7 @@ int ceph_handle_auth_reply(struct ceph_auth_client *ac,
 	int result_msg_len;
 	int ret = -EINVAL;
 
+	mutex_lock(&ac->mutex);
 	dout("handle_auth_reply %p %p\n", p, end);
 	ceph_decode_need(&p, end, sizeof(u32) * 3 + sizeof(u64), bad);
 	protocol = ceph_decode_32(&p);
@@ -227,35 +238,44 @@ int ceph_handle_auth_reply(struct ceph_auth_client *ac,
 
 	ret = ac->ops->handle_reply(ac, result, payload, payload_end);
 	if (ret == -EAGAIN) {
-		return ceph_build_auth_request(ac, reply_buf, reply_len);
+		ret = ceph_build_auth_request(ac, reply_buf, reply_len);
 	} else if (ret) {
 		pr_err("auth method '%s' error %d\n", ac->ops->name, ret);
-		return ret;
 	}
-	return 0;
 
-bad:
-	pr_err("failed to decode auth msg\n");
 out:
+	mutex_unlock(&ac->mutex);
 	return ret;
+
+bad:
+	pr_err("failed to decode auth msg\n");
+	ret = -EINVAL;
+	goto out;
 }
 
 int ceph_build_auth(struct ceph_auth_client *ac,
 		    void *msg_buf, size_t msg_len)
 {
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
 	if (!ac->protocol)
-		return ceph_auth_build_hello(ac, msg_buf, msg_len);
-	BUG_ON(!ac->ops);
-	if (ac->ops->should_authenticate(ac))
-		return ceph_build_auth_request(ac, msg_buf, msg_len);
-	return 0;
+		ret = ceph_auth_build_hello(ac, msg_buf, msg_len);
+	else if (ac->ops->should_authenticate(ac))
+		ret = ceph_build_auth_request(ac, msg_buf, msg_len);
+	mutex_unlock(&ac->mutex);
+	return ret;
 }
 
 int ceph_auth_is_authenticated(struct ceph_auth_client *ac)
 {
-	if (!ac->ops)
-		return 0;
-	return ac->ops->is_authenticated(ac);
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
+	if (ac->ops)
+		ret = ac->ops->is_authenticated(ac);
+	mutex_unlock(&ac->mutex);
+	return ret;
 }
 EXPORT_SYMBOL(ceph_auth_is_authenticated);
 
@@ -263,17 +283,23 @@ int ceph_auth_create_authorizer(struct ceph_auth_client *ac,
 				int peer_type,
 				struct ceph_auth_handshake *auth)
 {
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
 	if (ac->ops && ac->ops->create_authorizer)
-		return ac->ops->create_authorizer(ac, peer_type, auth);
-	return 0;
+		ret = ac->ops->create_authorizer(ac, peer_type, auth);
+	mutex_unlock(&ac->mutex);
+	return ret;
 }
 EXPORT_SYMBOL(ceph_auth_create_authorizer);
 
 void ceph_auth_destroy_authorizer(struct ceph_auth_client *ac,
 				  struct ceph_authorizer *a)
 {
+	mutex_lock(&ac->mutex);
 	if (ac->ops && ac->ops->destroy_authorizer)
 		ac->ops->destroy_authorizer(ac, a);
+	mutex_unlock(&ac->mutex);
 }
 EXPORT_SYMBOL(ceph_auth_destroy_authorizer);
 
@@ -283,8 +309,10 @@ int ceph_auth_update_authorizer(struct ceph_auth_client *ac,
 {
 	int ret = 0;
 
+	mutex_lock(&ac->mutex);
 	if (ac->ops && ac->ops->update_authorizer)
 		ret = ac->ops->update_authorizer(ac, peer_type, a);
+	mutex_unlock(&ac->mutex);
 	return ret;
 }
 EXPORT_SYMBOL(ceph_auth_update_authorizer);
@@ -292,15 +320,21 @@ EXPORT_SYMBOL(ceph_auth_update_authorizer);
 int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
 				      struct ceph_authorizer *a, size_t len)
 {
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
 	if (ac->ops && ac->ops->verify_authorizer_reply)
-		return ac->ops->verify_authorizer_reply(ac, a, len);
-	return 0;
+		ret = ac->ops->verify_authorizer_reply(ac, a, len);
+	mutex_unlock(&ac->mutex);
+	return ret;
 }
 EXPORT_SYMBOL(ceph_auth_verify_authorizer_reply);
 
 void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac, int peer_type)
 {
+	mutex_lock(&ac->mutex);
 	if (ac->ops && ac->ops->invalidate_authorizer)
 		ac->ops->invalidate_authorizer(ac, peer_type);
+	mutex_unlock(&ac->mutex);
 }
 EXPORT_SYMBOL(ceph_auth_invalidate_authorizer);
-- 
1.7.10.4

[137/141] powerpc: Fix stack overflow crash in resume_kernel when ftracing

[Steven Rostedt]

[-- Attachment #1: 0137-powerpc-Fix-stack-overflow-crash-in-resume_kernel-wh.patch --]
[-- Type: text/plain, Size: 5081 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Michael Ellerman <michael@ellerman.id.au>

[ Upstream commit 0e37739b1c96d65e6433998454985de994383019 ]

It's possible for us to crash when running with ftrace enabled, eg:

  Bad kernel stack pointer bffffd12 at c00000000000a454
  cpu 0x3: Vector: 300 (Data Access) at [c00000000ffe3d40]
      pc: c00000000000a454: resume_kernel+0x34/0x60
      lr: c00000000000335c: performance_monitor_common+0x15c/0x180
      sp: bffffd12
     msr: 8000000000001032
     dar: bffffd12
   dsisr: 42000000

If we look at current's stack (paca->__current->stack) we see it is
equal to c0000002ecab0000. Our stack is 16K, and comparing to
paca->kstack (c0000002ecab3e30) we can see that we have overflowed our
kernel stack. This leads to us writing over our struct thread_info, and
in this case we have corrupted thread_info->flags and set
_TIF_EMULATE_STACK_STORE.

Dumping the stack we see:

  3:mon> t c0000002ecab0000
  [c0000002ecab0000] c00000000002131c .performance_monitor_exception+0x5c/0x70
  [c0000002ecab0080] c00000000000335c performance_monitor_common+0x15c/0x180
  --- Exception: f01 (Performance Monitor) at c0000000000fb2ec .trace_hardirqs_off+0x1c/0x30
  [c0000002ecab0370] c00000000016fdb0 .trace_graph_entry+0xb0/0x280 (unreliable)
  [c0000002ecab0410] c00000000003d038 .prepare_ftrace_return+0x98/0x130
  [c0000002ecab04b0] c00000000000a920 .ftrace_graph_caller+0x14/0x28
  [c0000002ecab0520] c0000000000d6b58 .idle_cpu+0x18/0x90
  [c0000002ecab05a0] c00000000000a934 .return_to_handler+0x0/0x34
  [c0000002ecab0620] c00000000001e660 .timer_interrupt+0x160/0x300
  [c0000002ecab06d0] c0000000000025dc decrementer_common+0x15c/0x180
  --- Exception: 901 (Decrementer) at c0000000000104d4 .arch_local_irq_restore+0x74/0xa0
  [c0000002ecab09c0] c0000000000fe044 .trace_hardirqs_on+0x14/0x30 (unreliable)
  [c0000002ecab0fb0] c00000000016fe3c .trace_graph_entry+0x13c/0x280
  [c0000002ecab1050] c00000000003d038 .prepare_ftrace_return+0x98/0x130
  [c0000002ecab10f0] c00000000000a920 .ftrace_graph_caller+0x14/0x28
  [c0000002ecab1160] c0000000000161f0 .__ppc64_runlatch_on+0x10/0x40
  [c0000002ecab11d0] c00000000000a934 .return_to_handler+0x0/0x34
  --- Exception: 901 (Decrementer) at c0000000000104d4 .arch_local_irq_restore+0x74/0xa0

  ... and so on

__ppc64_runlatch_on() is called from RUNLATCH_ON in the exception entry
path. At that point the irq state is not consistent, ie. interrupts are
hard disabled (by the exception entry), but the paca soft-enabled flag
may be out of sync.

This leads to the local_irq_restore() in trace_graph_entry() actually
enabling interrupts, which we do not want. Because we have not yet
reprogrammed the decrementer we immediately take another decrementer
exception, and recurse.

The fix is twofold. Firstly make sure we call DISABLE_INTS before
calling RUNLATCH_ON. The badly named DISABLE_INTS actually reconciles
the irq state in the paca with the hardware, making it safe again to
call local_irq_save/restore().

Although that should be sufficient to fix the bug, we also mark the
runlatch routines as notrace. They are called very early in the
exception entry and we are asking for trouble tracing them. They are
also fairly uninteresting and tracing them just adds unnecessary
overhead.

[ This regression was introduced by fe1952fc0afb9a2e4c79f103c08aef5d13db1873
  "powerpc: Rework runlatch code" by myself --BenH
]

CC: <stable@vger.kernel.org> [v3.4+]
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/include/asm/exception-64s.h |    2 +-
 arch/powerpc/kernel/process.c            |    4 ++--
 2 files changed, 3 insertions(+), 3 deletions(-)

diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index a43c147..3166d5e 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -320,7 +320,7 @@ label##_common:							\
  */
 #define STD_EXCEPTION_COMMON_ASYNC(trap, label, hdlr)		  \
 	EXCEPTION_COMMON(trap, label, hdlr, ret_from_except_lite, \
-			 FINISH_NAP;RUNLATCH_ON;DISABLE_INTS)
+			 FINISH_NAP;DISABLE_INTS;RUNLATCH_ON)
 
 /*
  * When the idle code in power4_idle puts the CPU into NAP mode,
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1a1f2dd..b1e4ac1 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1221,7 +1221,7 @@ EXPORT_SYMBOL(dump_stack);
 
 #ifdef CONFIG_PPC64
 /* Called with hard IRQs off */
-void __ppc64_runlatch_on(void)
+void notrace __ppc64_runlatch_on(void)
 {
 	struct thread_info *ti = current_thread_info();
 	unsigned long ctrl;
@@ -1234,7 +1234,7 @@ void __ppc64_runlatch_on(void)
 }
 
 /* Called with hard IRQs off */
-void __ppc64_runlatch_off(void)
+void notrace __ppc64_runlatch_off(void)
 {
 	struct thread_info *ti = current_thread_info();
 	unsigned long ctrl;
-- 
1.7.10.4

[138/141] powerpc: Fix emulation of illegal instructions on PowerNV platform

[Steven Rostedt]

[-- Attachment #1: 0138-powerpc-Fix-emulation-of-illegal-instructions-on-Pow.patch --]
[-- Type: text/plain, Size: 2869 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Paul Mackerras <paulus@samba.org>

[ Upstream commit bf593907f7236e95698a76b7c7a2bbf8b1165327 ]

Normally, the kernel emulates a few instructions that are unimplemented
on some processors (e.g. the old dcba instruction), or privileged (e.g.
mfpvr).  The emulation of unimplemented instructions is currently not
working on the PowerNV platform.  The reason is that on these machines,
unimplemented and illegal instructions cause a hypervisor emulation
assist interrupt, rather than a program interrupt as on older CPUs.
Our vector for the emulation assist interrupt just calls
program_check_exception() directly, without setting the bit in SRR1
that indicates an illegal instruction interrupt.  This fixes it by
making the emulation assist interrupt set that bit before calling
program_check_interrupt().  With this, old programs that use no-longer
implemented instructions such as dcba now work again.

CC: <stable@vger.kernel.org>
Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/kernel/exceptions-64s.S |    2 +-
 arch/powerpc/kernel/traps.c          |   10 ++++++++++
 2 files changed, 11 insertions(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 39aa97d..6419923 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -491,7 +491,7 @@ machine_check_common:
 	STD_EXCEPTION_COMMON(0xb00, trap_0b, .unknown_exception)
 	STD_EXCEPTION_COMMON(0xd00, single_step, .single_step_exception)
 	STD_EXCEPTION_COMMON(0xe00, trap_0e, .unknown_exception)
-        STD_EXCEPTION_COMMON(0xe40, emulation_assist, .program_check_exception)
+	STD_EXCEPTION_COMMON(0xe40, emulation_assist, .emulation_assist_interrupt)
         STD_EXCEPTION_COMMON(0xe60, hmi_exception, .unknown_exception)
 	STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, .performance_monitor_exception)
 	STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, .instruction_breakpoint_exception)
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 3bb7197..5557044 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1074,6 +1074,16 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 		_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
 }
 
+/*
+ * This occurs when running in hypervisor mode on POWER6 or later
+ * and an illegal instruction is encountered.
+ */
+void __kprobes emulation_assist_interrupt(struct pt_regs *regs)
+{
+	regs->msr |= REASON_ILLEGAL;
+	program_check_exception(regs);
+}
+
 void alignment_exception(struct pt_regs *regs)
 {
 	int sig, code, fixed = 0;
-- 
1.7.10.4

[139/141] powerpc: Fix missing/delayed calls to irq_work

[Steven Rostedt]

[-- Attachment #1: 0139-powerpc-Fix-missing-delayed-calls-to-irq_work.patch --]
[-- Type: text/plain, Size: 1638 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Benjamin Herrenschmidt <benh@kernel.crashing.org>

[ Upstream commit 230b3034793247f61e6a0b08c44cf415f6d92981 ]

When replaying interrupts (as a result of the interrupt occurring
while soft-disabled), in the case of the decrementer, we are exclusively
testing for a pending timer target. However we also use decrementer
interrupts to trigger the new "irq_work", which in this case would
be missed.

This change the logic to force a replay in both cases of a timer
boundary reached and a decrementer interrupt having actually occurred
while disabled. The former test is still useful to catch cases where
a CPU having been hard-disabled for a long time completely misses the
interrupt due to a decrementer rollover.

CC: <stable@vger.kernel.org> [v3.4+]
Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Tested-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 arch/powerpc/kernel/irq.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 1f017bb..86cb68e 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -162,7 +162,7 @@ notrace unsigned int __check_irq_replay(void)
 	 * in case we also had a rollover while hard disabled
 	 */
 	local_paca->irq_happened &= ~PACA_IRQ_DEC;
-	if (decrementer_check_overflow())
+	if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow())
 		return 0x900;
 
 	/* Finally check if an external interrupt happened */
-- 
1.7.10.4

[140/141] USB: pl2303: fix device initialisation at open

[Steven Rostedt]

[-- Attachment #1: 0140-USB-pl2303-fix-device-initialisation-at-open.patch --]
[-- Type: text/plain, Size: 2557 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 2d8f4447b58bba5f8cb895c07690434c02307eaf ]

Do not use uninitialised termios data to determine when to configure the
device at open.

This also prevents stack data from leaking to userspace in the OOM error
path.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/pl2303.c |   10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index bf39f1b..058ab8e 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -285,7 +285,7 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	   serial settings even to the same values as before. Thus
 	   we actually need to filter in this specific case */
 
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (old_termios && !tty_termios_hw_change(tty->termios, old_termios))
 		return;
 
 	cflag = tty->termios->c_cflag;
@@ -294,7 +294,8 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	if (!buf) {
 		dev_err(&port->dev, "%s - out of memory.\n", __func__);
 		/* Report back no change occurred */
-		*tty->termios = *old_termios;
+		if (old_termios)
+			*tty->termios = *old_termios;
 		return;
 	}
 
@@ -434,7 +435,7 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	control = priv->line_control;
 	if ((cflag & CBAUD) == B0)
 		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
-	else if ((old_termios->c_cflag & CBAUD) == B0)
+	else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
 		priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
 	if (control != priv->line_control) {
 		control = priv->line_control;
@@ -493,7 +494,6 @@ static void pl2303_close(struct usb_serial_port *port)
 
 static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct ktermios tmp_termios;
 	struct usb_serial *serial = port->serial;
 	struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
 	int result;
@@ -509,7 +509,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* Setup termios */
 	if (tty)
-		pl2303_set_termios(tty, port, &tmp_termios);
+		pl2303_set_termios(tty, port, NULL);
 
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result) {
-- 
1.7.10.4

[141/141] USB: spcp8x5: fix device initialisation at open

[Steven Rostedt]

[-- Attachment #1: 0141-USB-spcp8x5-fix-device-initialisation-at-open.patch --]
[-- Type: text/plain, Size: 2386 bytes --]

3.6.11.6 stable review patch.
If anyone has any objections, please let me know.

------------------

From: Johan Hovold <jhovold@gmail.com>

[ Upstream commit 5e4211f1c47560c36a8b3d4544dfd866dcf7ccd0 ]

Do not use uninitialised termios data to determine when to configure the
device at open.

Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <jhovold@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
---
 drivers/usb/serial/spcp8x5.c |   10 ++++------
 1 file changed, 4 insertions(+), 6 deletions(-)

diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index 0822a10..cc35b13 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -319,7 +319,6 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
 	struct spcp8x5_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 	unsigned int cflag = tty->termios->c_cflag;
-	unsigned int old_cflag = old_termios->c_cflag;
 	unsigned short uartdata;
 	unsigned char buf[2] = {0, 0};
 	int baud;
@@ -328,15 +327,15 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
 
 
 	/* check that they really want us to change something */
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (old_termios && !tty_termios_hw_change(tty->termios, old_termios))
 		return;
 
 	/* set DTR/RTS active */
 	spin_lock_irqsave(&priv->lock, flags);
 	control = priv->line_control;
-	if ((old_cflag & CBAUD) == B0) {
+	if (old_termios && (old_termios->c_cflag & CBAUD) == B0) {
 		priv->line_control |= MCR_DTR;
-		if (!(old_cflag & CRTSCTS))
+		if (!(old_termios->c_cflag & CRTSCTS))
 			priv->line_control |= MCR_RTS;
 	}
 	if (control != priv->line_control) {
@@ -426,7 +425,6 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
  * status of the device. */
 static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct ktermios tmp_termios;
 	struct usb_serial *serial = port->serial;
 	struct spcp8x5_private *priv = usb_get_serial_port_data(port);
 	int ret;
@@ -447,7 +445,7 @@ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* Setup termios */
 	if (tty)
-		spcp8x5_set_termios(tty, port, &tmp_termios);
+		spcp8x5_set_termios(tty, port, NULL);
 
 	spcp8x5_get_msr(serial->dev, &status, priv->type);
 
-- 
1.7.10.4

Re: [000/141] 3.6.11.6-stable review

[Steven Rostedt]

diff --git a/Makefile b/Makefile
index 98481c0..2f707c7 100644
--- a/Makefile
+++ b/Makefile
@@ -1,7 +1,7 @@
 VERSION = 3
 PATCHLEVEL = 6
 SUBLEVEL = 11
-EXTRAVERSION = .5
+EXTRAVERSION = .6
 NAME = Terrified Chipmunk
 
 # *DOCUMENTATION*
diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile
index bb26756..90a482b 100644
--- a/arch/arm/boot/compressed/Makefile
+++ b/arch/arm/boot/compressed/Makefile
@@ -126,7 +126,7 @@ KBUILD_CFLAGS = $(subst -pg, , $(ORIG_CFLAGS))
 endif
 
 ccflags-y := -fpic -fno-builtin -I$(obj)
-asflags-y := -Wa,-march=all
+asflags-y := -DZIMAGE
 
 # Supply kernel BSS size to the decompressor via a linker symbol.
 KBSS_SZ = $(shell $(CROSS_COMPILE)size $(obj)/../../../../vmlinux | \
diff --git a/arch/arm/boot/compressed/head-sa1100.S b/arch/arm/boot/compressed/head-sa1100.S
index 6179d94..3115e31 100644
--- a/arch/arm/boot/compressed/head-sa1100.S
+++ b/arch/arm/boot/compressed/head-sa1100.S
@@ -11,6 +11,7 @@
 #include <asm/mach-types.h>
 
 		.section        ".start", "ax"
+		.arch	armv4
 
 __SA1100_start:
 
diff --git a/arch/arm/boot/compressed/head-shark.S b/arch/arm/boot/compressed/head-shark.S
index 089c560..92b5689 100644
--- a/arch/arm/boot/compressed/head-shark.S
+++ b/arch/arm/boot/compressed/head-shark.S
@@ -18,6 +18,7 @@
 	
 		.section	".start", "ax"
 
+		.arch armv4
 		b	__beginning
 	
 __ofw_data:	.long	0				@ the number of memory blocks
diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S
index bc67cbf..a7ae392 100644
--- a/arch/arm/boot/compressed/head.S
+++ b/arch/arm/boot/compressed/head.S
@@ -10,6 +10,7 @@
  */
 #include <linux/linkage.h>
 
+	.arch	armv7-a
 /*
  * Debugging stuff
  *
diff --git a/arch/arm/kernel/topology.c b/arch/arm/kernel/topology.c
index 26c12c6..2d064f9 100644
--- a/arch/arm/kernel/topology.c
+++ b/arch/arm/kernel/topology.c
@@ -13,6 +13,7 @@
 
 #include <linux/cpu.h>
 #include <linux/cpumask.h>
+#include <linux/export.h>
 #include <linux/init.h>
 #include <linux/percpu.h>
 #include <linux/node.h>
@@ -225,6 +226,7 @@ static inline void update_cpu_power(unsigned int cpuid, unsigned int mpidr) {}
  * cpu topology table
  */
 struct cputopo_arm cpu_topology[NR_CPUS];
+EXPORT_SYMBOL_GPL(cpu_topology);
 
 const struct cpumask *cpu_coregroup_mask(int cpu)
 {
diff --git a/arch/arm/mach-kirkwood/ts219-setup.c b/arch/arm/mach-kirkwood/ts219-setup.c
index 73e2b6c..3a73fc7 100644
--- a/arch/arm/mach-kirkwood/ts219-setup.c
+++ b/arch/arm/mach-kirkwood/ts219-setup.c
@@ -124,7 +124,7 @@ static void __init qnap_ts219_init(void)
 static int __init ts219_pci_init(void)
 {
 	if (machine_is_ts219())
-		kirkwood_pcie_init(KW_PCIE0);
+		kirkwood_pcie_init(KW_PCIE1 | KW_PCIE0);
 
 	return 0;
 }
diff --git a/arch/arm/plat-orion/common.c b/arch/arm/plat-orion/common.c
index b8b747a..bd65e73 100644
--- a/arch/arm/plat-orion/common.c
+++ b/arch/arm/plat-orion/common.c
@@ -373,7 +373,7 @@ static struct resource orion_ge10_shared_resources[] = {
 
 static struct platform_device orion_ge10_shared = {
 	.name		= MV643XX_ETH_SHARED_NAME,
-	.id		= 1,
+	.id		= 2,
 	.dev		= {
 		.platform_data	= &orion_ge10_shared_data,
 	},
@@ -388,8 +388,8 @@ static struct resource orion_ge10_resources[] = {
 
 static struct platform_device orion_ge10 = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
-	.num_resources	= 2,
+	.id		= 2,
+	.num_resources	= 1,
 	.resource	= orion_ge10_resources,
 	.dev		= {
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
@@ -425,7 +425,7 @@ static struct resource orion_ge11_shared_resources[] = {
 
 static struct platform_device orion_ge11_shared = {
 	.name		= MV643XX_ETH_SHARED_NAME,
-	.id		= 1,
+	.id		= 3,
 	.dev		= {
 		.platform_data	= &orion_ge11_shared_data,
 	},
@@ -440,8 +440,8 @@ static struct resource orion_ge11_resources[] = {
 
 static struct platform_device orion_ge11 = {
 	.name		= MV643XX_ETH_NAME,
-	.id		= 1,
-	.num_resources	= 2,
+	.id		= 3,
+	.num_resources	= 1,
 	.resource	= orion_ge11_resources,
 	.dev		= {
 		.coherent_dma_mask	= DMA_BIT_MASK(32),
diff --git a/arch/avr32/kernel/module.c b/arch/avr32/kernel/module.c
index 596f730..2c94129 100644
--- a/arch/avr32/kernel/module.c
+++ b/arch/avr32/kernel/module.c
@@ -264,7 +264,7 @@ int apply_relocate_add(Elf32_Shdr *sechdrs, const char *strtab,
 			break;
 		case R_AVR32_GOT18SW:
 			if ((relocation & 0xfffe0003) != 0
-			    && (relocation & 0xfffc0003) != 0xffff0000)
+			    && (relocation & 0xfffc0000) != 0xfffc0000)
 				return reloc_overflow(module, "R_AVR32_GOT18SW",
 						     relocation);
 			relocation >>= 2;
diff --git a/arch/m68k/kernel/head.S b/arch/m68k/kernel/head.S
index d197e7f..ac85f16 100644
--- a/arch/m68k/kernel/head.S
+++ b/arch/m68k/kernel/head.S
@@ -2752,11 +2752,9 @@ func_return	get_new_page
 #ifdef CONFIG_MAC
 
 L(scc_initable_mac):
-	.byte	9,12		/* Reset */
 	.byte	4,0x44		/* x16, 1 stopbit, no parity */
 	.byte	3,0xc0		/* receiver: 8 bpc */
 	.byte	5,0xe2		/* transmitter: 8 bpc, assert dtr/rts */
-	.byte	9,0		/* no interrupts */
 	.byte	10,0		/* NRZ */
 	.byte	11,0x50		/* use baud rate generator */
 	.byte	12,1,13,0	/* 38400 baud */
@@ -2899,6 +2897,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	is_not_mac(L(serial_init_not_mac))
 
 #ifdef SERIAL_DEBUG
+
 /* You may define either or both of these. */
 #define MAC_USE_SCC_A /* Modem port */
 #define MAC_USE_SCC_B /* Printer port */
@@ -2908,9 +2907,21 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 #define mac_scc_cha_b_data_offset	0x4
 #define mac_scc_cha_a_data_offset	0x6
 
+#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
+	movel	%pc@(L(mac_sccbase)),%a0
+	/* Reset SCC device */
+	moveb	#9,%a0@(mac_scc_cha_a_ctrl_offset)
+	moveb	#0xc0,%a0@(mac_scc_cha_a_ctrl_offset)
+	/* Wait for 5 PCLK cycles, which is about 68 CPU cycles */
+	/* 5 / 3.6864 MHz = approx. 1.36 us = 68 / 50 MHz */
+	movel	#35,%d0
+5:
+	subq	#1,%d0
+	jne	5b
+#endif
+
 #ifdef MAC_USE_SCC_A
 	/* Initialize channel A */
-	movel	%pc@(L(mac_sccbase)),%a0
 	lea	%pc@(L(scc_initable_mac)),%a1
 5:	moveb	%a1@+,%d0
 	jmi	6f
@@ -2922,9 +2933,6 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 
 #ifdef MAC_USE_SCC_B
 	/* Initialize channel B */
-#ifndef MAC_USE_SCC_A	/* Load mac_sccbase only if needed */
-	movel	%pc@(L(mac_sccbase)),%a0
-#endif	/* MAC_USE_SCC_A */
 	lea	%pc@(L(scc_initable_mac)),%a1
 7:	moveb	%a1@+,%d0
 	jmi	8f
@@ -2933,6 +2941,7 @@ func_start	serial_init,%d0/%d1/%a0/%a1
 	jra	7b
 8:
 #endif	/* MAC_USE_SCC_B */
+
 #endif	/* SERIAL_DEBUG */
 
 	jra	L(serial_init_done)
@@ -3006,17 +3015,17 @@ func_start	serial_putc,%d0/%d1/%a0/%a1
 
 #ifdef SERIAL_DEBUG
 
-#ifdef MAC_USE_SCC_A
+#if defined(MAC_USE_SCC_A) || defined(MAC_USE_SCC_B)
 	movel	%pc@(L(mac_sccbase)),%a1
+#endif
+
+#ifdef MAC_USE_SCC_A
 3:	btst	#2,%a1@(mac_scc_cha_a_ctrl_offset)
 	jeq	3b
 	moveb	%d0,%a1@(mac_scc_cha_a_data_offset)
 #endif	/* MAC_USE_SCC_A */
 
 #ifdef MAC_USE_SCC_B
-#ifndef MAC_USE_SCC_A	/* Load mac_sccbase only if needed */
-	movel	%pc@(L(mac_sccbase)),%a1
-#endif	/* MAC_USE_SCC_A */
 4:	btst	#2,%a1@(mac_scc_cha_b_ctrl_offset)
 	jeq	4b
 	moveb	%d0,%a1@(mac_scc_cha_b_data_offset)
diff --git a/arch/powerpc/include/asm/exception-64s.h b/arch/powerpc/include/asm/exception-64s.h
index a43c147..3166d5e 100644
--- a/arch/powerpc/include/asm/exception-64s.h
+++ b/arch/powerpc/include/asm/exception-64s.h
@@ -320,7 +320,7 @@ label##_common:							\
  */
 #define STD_EXCEPTION_COMMON_ASYNC(trap, label, hdlr)		  \
 	EXCEPTION_COMMON(trap, label, hdlr, ret_from_except_lite, \
-			 FINISH_NAP;RUNLATCH_ON;DISABLE_INTS)
+			 FINISH_NAP;DISABLE_INTS;RUNLATCH_ON)
 
 /*
  * When the idle code in power4_idle puts the CPU into NAP mode,
diff --git a/arch/powerpc/include/asm/machdep.h b/arch/powerpc/include/asm/machdep.h
index 42ce570..fd23013 100644
--- a/arch/powerpc/include/asm/machdep.h
+++ b/arch/powerpc/include/asm/machdep.h
@@ -29,6 +29,7 @@ struct rtc_time;
 struct file;
 struct pci_controller;
 struct kimage;
+struct pci_host_bridge;
 
 struct machdep_calls {
 	char		*name;
@@ -107,6 +108,8 @@ struct machdep_calls {
 	void		(*pcibios_fixup)(void);
 	int		(*pci_probe_mode)(struct pci_bus *);
 	void		(*pci_irq_fixup)(struct pci_dev *dev);
+	int		(*pcibios_root_bridge_prepare)(struct pci_host_bridge
+				*bridge);
 
 	/* To setup PHBs when using automatic OF platform driver for PCI */
 	int		(*pci_setup_phb)(struct pci_controller *host);
diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h
index 78326de..271af40 100644
--- a/arch/powerpc/include/asm/pci-bridge.h
+++ b/arch/powerpc/include/asm/pci-bridge.h
@@ -154,6 +154,8 @@ struct pci_dn {
 
 	int	pci_ext_config_space;	/* for pci devices */
 
+	int	force_32bit_msi:1;
+
 	struct	pci_dev *pcidev;	/* back-pointer to the pci device */
 #ifdef CONFIG_EEH
 	struct eeh_dev *edev;		/* eeh device */
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 39aa97d..6419923 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -491,7 +491,7 @@ machine_check_common:
 	STD_EXCEPTION_COMMON(0xb00, trap_0b, .unknown_exception)
 	STD_EXCEPTION_COMMON(0xd00, single_step, .single_step_exception)
 	STD_EXCEPTION_COMMON(0xe00, trap_0e, .unknown_exception)
-        STD_EXCEPTION_COMMON(0xe40, emulation_assist, .program_check_exception)
+	STD_EXCEPTION_COMMON(0xe40, emulation_assist, .emulation_assist_interrupt)
         STD_EXCEPTION_COMMON(0xe60, hmi_exception, .unknown_exception)
 	STD_EXCEPTION_COMMON_ASYNC(0xf00, performance_monitor, .performance_monitor_exception)
 	STD_EXCEPTION_COMMON(0x1300, instruction_breakpoint, .instruction_breakpoint_exception)
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index 1f017bb..86cb68e 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -162,7 +162,7 @@ notrace unsigned int __check_irq_replay(void)
 	 * in case we also had a rollover while hard disabled
 	 */
 	local_paca->irq_happened &= ~PACA_IRQ_DEC;
-	if (decrementer_check_overflow())
+	if ((happened & PACA_IRQ_DEC) || decrementer_check_overflow())
 		return 0x900;
 
 	/* Finally check if an external interrupt happened */
diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c
index 2aa04f2..6fe4341 100644
--- a/arch/powerpc/kernel/pci-common.c
+++ b/arch/powerpc/kernel/pci-common.c
@@ -30,6 +30,7 @@
 #include <linux/irq.h>
 #include <linux/vmalloc.h>
 #include <linux/slab.h>
+#include <linux/vgaarb.h>
 
 #include <asm/processor.h>
 #include <asm/io.h>
@@ -825,6 +826,14 @@ int pci_proc_domain(struct pci_bus *bus)
 	return 1;
 }
 
+int pcibios_root_bridge_prepare(struct pci_host_bridge *bridge)
+{
+	if (ppc_md.pcibios_root_bridge_prepare)
+		return ppc_md.pcibios_root_bridge_prepare(bridge);
+
+	return 0;
+}
+
 /* This header fixup will do the resource fixup for all devices as they are
  * probed, but not for bridge ranges
  */
@@ -1698,3 +1707,15 @@ static void fixup_hide_host_resource_fsl(struct pci_dev *dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_MOTOROLA, PCI_ANY_ID, fixup_hide_host_resource_fsl);
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_FREESCALE, PCI_ANY_ID, fixup_hide_host_resource_fsl);
+
+static void fixup_vga(struct pci_dev *pdev)
+{
+	u16 cmd;
+
+	pci_read_config_word(pdev, PCI_COMMAND, &cmd);
+	if ((cmd & (PCI_COMMAND_IO | PCI_COMMAND_MEMORY)) || !vga_default_device())
+		vga_set_default_device(pdev);
+
+}
+DECLARE_PCI_FIXUP_CLASS_FINAL(PCI_ANY_ID, PCI_ANY_ID,
+			      PCI_CLASS_DISPLAY_VGA, 8, fixup_vga);
diff --git a/arch/powerpc/kernel/process.c b/arch/powerpc/kernel/process.c
index 1a1f2dd..b1e4ac1 100644
--- a/arch/powerpc/kernel/process.c
+++ b/arch/powerpc/kernel/process.c
@@ -1221,7 +1221,7 @@ EXPORT_SYMBOL(dump_stack);
 
 #ifdef CONFIG_PPC64
 /* Called with hard IRQs off */
-void __ppc64_runlatch_on(void)
+void notrace __ppc64_runlatch_on(void)
 {
 	struct thread_info *ti = current_thread_info();
 	unsigned long ctrl;
@@ -1234,7 +1234,7 @@ void __ppc64_runlatch_on(void)
 }
 
 /* Called with hard IRQs off */
-void __ppc64_runlatch_off(void)
+void notrace __ppc64_runlatch_off(void)
 {
 	struct thread_info *ti = current_thread_info();
 	unsigned long ctrl;
diff --git a/arch/powerpc/kernel/traps.c b/arch/powerpc/kernel/traps.c
index 3bb7197..5557044 100644
--- a/arch/powerpc/kernel/traps.c
+++ b/arch/powerpc/kernel/traps.c
@@ -1074,6 +1074,16 @@ void __kprobes program_check_exception(struct pt_regs *regs)
 		_exception(SIGILL, regs, ILL_ILLOPC, regs->nip);
 }
 
+/*
+ * This occurs when running in hypervisor mode on POWER6 or later
+ * and an illegal instruction is encountered.
+ */
+void __kprobes emulation_assist_interrupt(struct pt_regs *regs)
+{
+	regs->msr |= REASON_ILLEGAL;
+	program_check_exception(regs);
+}
+
 void alignment_exception(struct pt_regs *regs)
 {
 	int sig, code, fixed = 0;
diff --git a/arch/powerpc/platforms/pseries/eeh_pseries.c b/arch/powerpc/platforms/pseries/eeh_pseries.c
index c33360ec..a81ebd3 100644
--- a/arch/powerpc/platforms/pseries/eeh_pseries.c
+++ b/arch/powerpc/platforms/pseries/eeh_pseries.c
@@ -83,7 +83,11 @@ static int pseries_eeh_init(void)
 	ibm_configure_pe		= rtas_token("ibm,configure-pe");
 	ibm_configure_bridge		= rtas_token("ibm,configure-bridge");
 
-	/* necessary sanity check */
+	/*
+	 * Necessary sanity check. We needn't check "get-config-addr-info"
+	 * and its variant since the old firmware probably support address
+	 * of domain/bus/slot/function for EEH RTAS operations.
+	 */
 	if (ibm_set_eeh_option == RTAS_UNKNOWN_SERVICE) {
 		pr_warning("%s: RTAS service <ibm,set-eeh-option> invalid\n",
 			__func__);
@@ -102,12 +106,6 @@ static int pseries_eeh_init(void)
 		pr_warning("%s: RTAS service <ibm,slot-error-detail> invalid\n",
 			__func__);
 		return -EINVAL;
-	} else if (ibm_get_config_addr_info2 == RTAS_UNKNOWN_SERVICE &&
-		   ibm_get_config_addr_info == RTAS_UNKNOWN_SERVICE) {
-		pr_warning("%s: RTAS service <ibm,get-config-addr-info2> and "
-			"<ibm,get-config-addr-info> invalid\n",
-			__func__);
-		return -EINVAL;
 	} else if (ibm_configure_pe == RTAS_UNKNOWN_SERVICE &&
 		   ibm_configure_bridge == RTAS_UNKNOWN_SERVICE) {
 		pr_warning("%s: RTAS service <ibm,configure-pe> and "
diff --git a/arch/powerpc/platforms/pseries/msi.c b/arch/powerpc/platforms/pseries/msi.c
index 109fdb7..5c9aa89 100644
--- a/arch/powerpc/platforms/pseries/msi.c
+++ b/arch/powerpc/platforms/pseries/msi.c
@@ -24,6 +24,7 @@ static int query_token, change_token;
 #define RTAS_RESET_FN		2
 #define RTAS_CHANGE_MSI_FN	3
 #define RTAS_CHANGE_MSIX_FN	4
+#define RTAS_CHANGE_32MSI_FN	5
 
 static struct pci_dn *get_pdn(struct pci_dev *pdev)
 {
@@ -58,7 +59,8 @@ static int rtas_change_msi(struct pci_dn *pdn, u32 func, u32 num_irqs)
 
 	seq_num = 1;
 	do {
-		if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN)
+		if (func == RTAS_CHANGE_MSI_FN || func == RTAS_CHANGE_MSIX_FN ||
+		    func == RTAS_CHANGE_32MSI_FN)
 			rc = rtas_call(change_token, 6, 4, rtas_ret, addr,
 					BUID_HI(buid), BUID_LO(buid),
 					func, num_irqs, seq_num);
@@ -407,9 +409,12 @@ static int rtas_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type)
 	 * return MSI-Xs.
 	 */
 	if (type == PCI_CAP_ID_MSI) {
-		rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec);
+		if (pdn->force_32bit_msi)
+			rc = rtas_change_msi(pdn, RTAS_CHANGE_32MSI_FN, nvec);
+		else
+			rc = rtas_change_msi(pdn, RTAS_CHANGE_MSI_FN, nvec);
 
-		if (rc < 0) {
+		if (rc < 0 && !pdn->force_32bit_msi) {
 			pr_debug("rtas_msi: trying the old firmware call.\n");
 			rc = rtas_change_msi(pdn, RTAS_CHANGE_FN, nvec);
 		}
@@ -489,3 +494,13 @@ static int rtas_msi_init(void)
 	return 0;
 }
 arch_initcall(rtas_msi_init);
+
+static void quirk_radeon(struct pci_dev *dev)
+{
+	struct pci_dn *pdn = get_pdn(dev);
+
+	if (pdn)
+		pdn->force_32bit_msi = 1;
+}
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0x68f2, quirk_radeon);
+DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_ATI, 0xaa68, quirk_radeon);
diff --git a/arch/powerpc/platforms/pseries/pci.c b/arch/powerpc/platforms/pseries/pci.c
index 2c6ded2..7f6f556 100644
--- a/arch/powerpc/platforms/pseries/pci.c
+++ b/arch/powerpc/platforms/pseries/pci.c
@@ -107,3 +107,56 @@ static void fixup_winbond_82c105(struct pci_dev* dev)
 }
 DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_WINBOND, PCI_DEVICE_ID_WINBOND_82C105,
 			 fixup_winbond_82c105);
+
+int pseries_root_bridge_prepare(struct pci_host_bridge *bridge)
+{
+	struct device_node *dn, *pdn;
+	struct pci_bus *bus;
+	const uint32_t *pcie_link_speed_stats;
+
+	bus = bridge->bus;
+
+	dn = pcibios_get_phb_of_node(bus);
+	if (!dn)
+		return 0;
+
+	for (pdn = dn; pdn != NULL; pdn = of_get_next_parent(pdn)) {
+		pcie_link_speed_stats = (const uint32_t *) of_get_property(pdn,
+			"ibm,pcie-link-speed-stats", NULL);
+		if (pcie_link_speed_stats)
+			break;
+	}
+
+	of_node_put(pdn);
+
+	if (!pcie_link_speed_stats) {
+		pr_err("no ibm,pcie-link-speed-stats property\n");
+		return 0;
+	}
+
+	switch (pcie_link_speed_stats[0]) {
+	case 0x01:
+		bus->max_bus_speed = PCIE_SPEED_2_5GT;
+		break;
+	case 0x02:
+		bus->max_bus_speed = PCIE_SPEED_5_0GT;
+		break;
+	default:
+		bus->max_bus_speed = PCI_SPEED_UNKNOWN;
+		break;
+	}
+
+	switch (pcie_link_speed_stats[1]) {
+	case 0x01:
+		bus->cur_bus_speed = PCIE_SPEED_2_5GT;
+		break;
+	case 0x02:
+		bus->cur_bus_speed = PCIE_SPEED_5_0GT;
+		break;
+	default:
+		bus->cur_bus_speed = PCI_SPEED_UNKNOWN;
+		break;
+	}
+
+	return 0;
+}
diff --git a/arch/powerpc/platforms/pseries/pseries.h b/arch/powerpc/platforms/pseries/pseries.h
index 9a3dda0..b79393d 100644
--- a/arch/powerpc/platforms/pseries/pseries.h
+++ b/arch/powerpc/platforms/pseries/pseries.h
@@ -60,4 +60,8 @@ extern int dlpar_detach_node(struct device_node *);
 /* Snooze Delay, pseries_idle */
 DECLARE_PER_CPU(long, smt_snooze_delay);
 
+/* PCI root bridge prepare function override for pseries */
+struct pci_host_bridge;
+int pseries_root_bridge_prepare(struct pci_host_bridge *bridge);
+
 #endif /* _PSERIES_PSERIES_H */
diff --git a/arch/powerpc/platforms/pseries/setup.c b/arch/powerpc/platforms/pseries/setup.c
index 51ecac9..5f01342 100644
--- a/arch/powerpc/platforms/pseries/setup.c
+++ b/arch/powerpc/platforms/pseries/setup.c
@@ -404,6 +404,9 @@ static void __init pSeries_setup_arch(void)
 		ppc_md.enable_pmcs = pseries_lpar_enable_pmcs;
 	else
 		ppc_md.enable_pmcs = power4_enable_pmcs;
+
+	ppc_md.pcibios_root_bridge_prepare = pseries_root_bridge_prepare;
+
 }
 
 static int __init pSeries_init_panel(void)
diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S
index 7a6f3b3..f2bb9c9 100644
--- a/arch/x86/kernel/relocate_kernel_64.S
+++ b/arch/x86/kernel/relocate_kernel_64.S
@@ -160,7 +160,7 @@ identity_mapped:
 	xorq    %rbp, %rbp
 	xorq	%r8,  %r8
 	xorq	%r9,  %r9
-	xorq	%r10, %r9
+	xorq	%r10, %r10
 	xorq	%r11, %r11
 	xorq	%r12, %r12
 	xorq	%r13, %r13
diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c
index 641c91e..76bce6e 100644
--- a/arch/x86/xen/smp.c
+++ b/arch/x86/xen/smp.c
@@ -17,6 +17,7 @@
 #include <linux/slab.h>
 #include <linux/smp.h>
 #include <linux/irq_work.h>
+#include <linux/tick.h>
 
 #include <asm/paravirt.h>
 #include <asm/desc.h>
@@ -435,6 +436,13 @@ static void __cpuinit xen_play_dead(void) /* used only with HOTPLUG_CPU */
 	HYPERVISOR_vcpu_op(VCPUOP_down, smp_processor_id(), NULL);
 	cpu_bringup();
 	/*
+	 * commit 4b0c0f294 (tick: Cleanup NOHZ per cpu data on cpu down)
+	 * clears certain data that the cpu_idle loop (which called us
+	 * and that we return from) expects. The only way to get that
+	 * data back is to call:
+	 */
+	tick_nohz_idle_enter();
+	/*
 	 * Balance out the preempt calls - as we are running in cpu_idle
 	 * loop which has been called at bootup from cpu_bringup_and_idle.
 	 * The cpucpu_bringup_and_idle called cpu_bringup which made a
diff --git a/drivers/acpi/video.c b/drivers/acpi/video.c
index 3837739..69b1677 100644
--- a/drivers/acpi/video.c
+++ b/drivers/acpi/video.c
@@ -447,6 +447,22 @@ static struct dmi_system_id video_dmi_table[] __initdata = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "HP Folio 13 - 2000 Notebook PC"),
 		},
 	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion g6 Notebook PC",
+	 .matches = {
+		 DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		 DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion g6 Notebook PC"),
+		},
+	},
+	{
+	 .callback = video_ignore_initial_backlight,
+	 .ident = "HP Pavilion m4",
+	 .matches = {
+		DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
+		DMI_MATCH(DMI_PRODUCT_NAME, "HP Pavilion m4 Notebook PC"),
+		},
+	},
 	{}
 };
 
diff --git a/drivers/acpi/video_detect.c b/drivers/acpi/video_detect.c
index 4ac2593..abcae69 100644
--- a/drivers/acpi/video_detect.c
+++ b/drivers/acpi/video_detect.c
@@ -164,6 +164,14 @@ static struct dmi_system_id video_detect_dmi_table[] = {
 		DMI_MATCH(DMI_PRODUCT_NAME, "UL30VT"),
 		},
 	},
+	{
+	.callback = video_detect_force_vendor,
+	.ident = "Asus UL30A",
+	.matches = {
+		DMI_MATCH(DMI_SYS_VENDOR, "ASUSTeK Computer Inc."),
+		DMI_MATCH(DMI_PRODUCT_NAME, "UL30A"),
+		},
+	},
 	{ },
 };
 
diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 7bfe093..80c44c30 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
@@ -151,6 +151,7 @@ enum piix_controller_ids {
 	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
 	ich8_sata_snb,
 	ich8_2port_sata_snb,
+	ich8_2port_sata_byt,
 };
 
 struct piix_map_db {
@@ -340,6 +341,9 @@ static const struct pci_device_id piix_pci_tbl[] = {
 	{ 0x8086, 0x9c09, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
 	/* SATA Controller IDE (DH89xxCC) */
 	{ 0x8086, 0x2326, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (BayTrail) */
+	{ 0x8086, 0x0F20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
+	{ 0x8086, 0x0F21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
 	{ }	/* terminate list */
 };
 
@@ -504,6 +508,7 @@ static const struct piix_map_db *piix_map_db_table[] = {
 	[tolapai_sata]		= &tolapai_map_db,
 	[ich8_sata_snb]		= &ich8_map_db,
 	[ich8_2port_sata_snb]	= &ich8_2port_map_db,
+	[ich8_2port_sata_byt]	= &ich8_2port_map_db,
 };
 
 static struct ata_port_info piix_port_info[] = {
@@ -654,6 +659,16 @@ static struct ata_port_info piix_port_info[] = {
 		.udma_mask	= ATA_UDMA6,
 		.port_ops	= &piix_sata_ops,
 	},
+
+	[ich8_2port_sata_byt] =
+	{
+		.flags          = PIIX_SATA_FLAGS | PIIX_FLAG_SIDPR | PIIX_FLAG_PIO16,
+		.pio_mask       = ATA_PIO4,
+		.mwdma_mask     = ATA_MWDMA2,
+		.udma_mask      = ATA_UDMA6,
+		.port_ops       = &piix_sata_ops,
+	},
+
 };
 
 static struct pci_bits piix_enable_bits[] = {
diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
index 3e351e7..b76e6ea 100644
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1601,6 +1601,12 @@ unsigned ata_exec_internal_sg(struct ata_device *dev,
 	qc->tf = *tf;
 	if (cdb)
 		memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
+
+	/* some SATA bridges need us to indicate data xfer direction */
+	if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) &&
+	    dma_dir == DMA_FROM_DEVICE)
+		qc->tf.feature |= ATAPI_DMADIR;
+
 	qc->flags |= ATA_QCFLAG_RESULT_TF;
 	qc->dma_dir = dma_dir;
 	if (dma_dir != DMA_NONE) {
diff --git a/drivers/block/brd.c b/drivers/block/brd.c
index 531ceb3..4e8213a 100644
--- a/drivers/block/brd.c
+++ b/drivers/block/brd.c
@@ -117,13 +117,13 @@ static struct page *brd_insert_page(struct brd_device *brd, sector_t sector)
 
 	spin_lock(&brd->brd_lock);
 	idx = sector >> PAGE_SECTORS_SHIFT;
+	page->index = idx;
 	if (radix_tree_insert(&brd->brd_pages, idx, page)) {
 		__free_page(page);
 		page = radix_tree_lookup(&brd->brd_pages, idx);
 		BUG_ON(!page);
 		BUG_ON(page->index != idx);
-	} else
-		page->index = idx;
+	}
 	spin_unlock(&brd->brd_lock);
 
 	radix_tree_preload_end();
diff --git a/drivers/block/cciss.c b/drivers/block/cciss.c
index b0f553b..d3446f6 100644
--- a/drivers/block/cciss.c
+++ b/drivers/block/cciss.c
@@ -161,8 +161,6 @@ static irqreturn_t do_cciss_msix_intr(int irq, void *dev_id);
 static int cciss_open(struct block_device *bdev, fmode_t mode);
 static int cciss_unlocked_open(struct block_device *bdev, fmode_t mode);
 static int cciss_release(struct gendisk *disk, fmode_t mode);
-static int do_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned int cmd, unsigned long arg);
 static int cciss_ioctl(struct block_device *bdev, fmode_t mode,
 		       unsigned int cmd, unsigned long arg);
 static int cciss_getgeo(struct block_device *bdev, struct hd_geometry *geo);
@@ -229,7 +227,7 @@ static const struct block_device_operations cciss_fops = {
 	.owner = THIS_MODULE,
 	.open = cciss_unlocked_open,
 	.release = cciss_release,
-	.ioctl = do_ioctl,
+	.ioctl = cciss_ioctl,
 	.getgeo = cciss_getgeo,
 #ifdef CONFIG_COMPAT
 	.compat_ioctl = cciss_compat_ioctl,
@@ -1140,16 +1138,6 @@ static int cciss_release(struct gendisk *disk, fmode_t mode)
 	return 0;
 }
 
-static int do_ioctl(struct block_device *bdev, fmode_t mode,
-		    unsigned cmd, unsigned long arg)
-{
-	int ret;
-	mutex_lock(&cciss_mutex);
-	ret = cciss_ioctl(bdev, mode, cmd, arg);
-	mutex_unlock(&cciss_mutex);
-	return ret;
-}
-
 #ifdef CONFIG_COMPAT
 
 static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
@@ -1176,7 +1164,7 @@ static int cciss_compat_ioctl(struct block_device *bdev, fmode_t mode,
 	case CCISS_REGNEWD:
 	case CCISS_RESCANDISK:
 	case CCISS_GETLUNINFO:
-		return do_ioctl(bdev, mode, cmd, arg);
+		return cciss_ioctl(bdev, mode, cmd, arg);
 
 	case CCISS_PASSTHRU32:
 		return cciss_ioctl32_passthru(bdev, mode, cmd, arg);
@@ -1216,7 +1204,7 @@ static int cciss_ioctl32_passthru(struct block_device *bdev, fmode_t mode,
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
+	err = cciss_ioctl(bdev, mode, CCISS_PASSTHRU, (unsigned long)p);
 	if (err)
 		return err;
 	err |=
@@ -1258,7 +1246,7 @@ static int cciss_ioctl32_big_passthru(struct block_device *bdev, fmode_t mode,
 	if (err)
 		return -EFAULT;
 
-	err = do_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
+	err = cciss_ioctl(bdev, mode, CCISS_BIG_PASSTHRU, (unsigned long)p);
 	if (err)
 		return err;
 	err |=
@@ -1308,11 +1296,14 @@ static int cciss_getpciinfo(ctlr_info_t *h, void __user *argp)
 static int cciss_getintinfo(ctlr_info_t *h, void __user *argp)
 {
 	cciss_coalint_struct intinfo;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	intinfo.delay = readl(&h->cfgtable->HostWrite.CoalIntDelay);
 	intinfo.count = readl(&h->cfgtable->HostWrite.CoalIntCount);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user
 	    (argp, &intinfo, sizeof(cciss_coalint_struct)))
 		return -EFAULT;
@@ -1353,12 +1344,15 @@ static int cciss_setintinfo(ctlr_info_t *h, void __user *argp)
 static int cciss_getnodename(ctlr_info_t *h, void __user *argp)
 {
 	NodeName_type NodeName;
+	unsigned long flags;
 	int i;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	for (i = 0; i < 16; i++)
 		NodeName[i] = readb(&h->cfgtable->ServerName[i]);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, NodeName, sizeof(NodeName_type)))
 		return -EFAULT;
 	return 0;
@@ -1395,10 +1389,13 @@ static int cciss_setnodename(ctlr_info_t *h, void __user *argp)
 static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
 {
 	Heartbeat_type heartbeat;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	heartbeat = readl(&h->cfgtable->HeartBeat);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, &heartbeat, sizeof(Heartbeat_type)))
 		return -EFAULT;
 	return 0;
@@ -1407,10 +1404,13 @@ static int cciss_getheartbeat(ctlr_info_t *h, void __user *argp)
 static int cciss_getbustypes(ctlr_info_t *h, void __user *argp)
 {
 	BusTypes_type BusTypes;
+	unsigned long flags;
 
 	if (!argp)
 		return -EINVAL;
+	spin_lock_irqsave(&h->lock, flags);
 	BusTypes = readl(&h->cfgtable->BusTypes);
+	spin_unlock_irqrestore(&h->lock, flags);
 	if (copy_to_user(argp, &BusTypes, sizeof(BusTypes_type)))
 		return -EFAULT;
 	return 0;
diff --git a/drivers/char/random.c b/drivers/char/random.c
index b86eae9..35cfbb0 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -867,16 +867,24 @@ static size_t account(struct entropy_store *r, size_t nbytes, int min,
 	if (r->entropy_count / 8 < min + reserved) {
 		nbytes = 0;
 	} else {
+		int entropy_count, orig;
+retry:
+		entropy_count = orig = ACCESS_ONCE(r->entropy_count);
 		/* If limited, never pull more than available */
-		if (r->limit && nbytes + reserved >= r->entropy_count / 8)
-			nbytes = r->entropy_count/8 - reserved;
-
-		if (r->entropy_count / 8 >= nbytes + reserved)
-			r->entropy_count -= nbytes*8;
-		else
-			r->entropy_count = reserved;
+		if (r->limit && nbytes + reserved >= entropy_count / 8)
+			nbytes = entropy_count/8 - reserved;
+
+		if (entropy_count / 8 >= nbytes + reserved) {
+			entropy_count -= nbytes*8;
+			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+				goto retry;
+		} else {
+			entropy_count = reserved;
+			if (cmpxchg(&r->entropy_count, orig, entropy_count) != orig)
+				goto retry;
+		}
 
-		if (r->entropy_count < random_write_wakeup_thresh) {
+		if (entropy_count < random_write_wakeup_thresh) {
 			wake_up_interruptible(&random_write_wait);
 			kill_fasync(&fasync, SIGIO, POLL_OUT);
 		}
diff --git a/drivers/dma/ste_dma40.c b/drivers/dma/ste_dma40.c
index 000d309..6a68d5a 100644
--- a/drivers/dma/ste_dma40.c
+++ b/drivers/dma/ste_dma40.c
@@ -1393,10 +1393,12 @@ static void dma_tc_handle(struct d40_chan *d40c)
 			return;
 		}
 
-		if (d40_queue_start(d40c) == NULL)
+		if (d40_queue_start(d40c) == NULL) {
 			d40c->busy = false;
-		pm_runtime_mark_last_busy(d40c->base->dev);
-		pm_runtime_put_autosuspend(d40c->base->dev);
+
+			pm_runtime_mark_last_busy(d40c->base->dev);
+			pm_runtime_put_autosuspend(d40c->base->dev);
+		}
 	}
 
 	d40c->pending_tx++;
diff --git a/drivers/gpu/drm/drm_irq.c b/drivers/gpu/drm/drm_irq.c
index 03f16f3..275bc82 100644
--- a/drivers/gpu/drm/drm_irq.c
+++ b/drivers/gpu/drm/drm_irq.c
@@ -980,7 +980,7 @@ EXPORT_SYMBOL(drm_vblank_off);
  */
 void drm_vblank_pre_modeset(struct drm_device *dev, int crtc)
 {
-	/* vblank is not initialized (IRQ not installed ?) */
+	/* vblank is not initialized (IRQ not installed ?), or has been freed */
 	if (!dev->num_crtcs)
 		return;
 	/*
@@ -1002,6 +1002,10 @@ void drm_vblank_post_modeset(struct drm_device *dev, int crtc)
 {
 	unsigned long irqflags;
 
+	/* vblank is not initialized (IRQ not installed ?), or has been freed */
+	if (!dev->num_crtcs)
+		return;
+
 	if (dev->vblank_inmodeset[crtc]) {
 		spin_lock_irqsave(&dev->vbl_lock, irqflags);
 		dev->vblank_disable_allowed = 1;
diff --git a/drivers/gpu/drm/gma500/cdv_intel_display.c b/drivers/gpu/drm/gma500/cdv_intel_display.c
index a68509b..294fcf5 100644
--- a/drivers/gpu/drm/gma500/cdv_intel_display.c
+++ b/drivers/gpu/drm/gma500/cdv_intel_display.c
@@ -1600,6 +1600,19 @@ static void cdv_intel_crtc_destroy(struct drm_crtc *crtc)
 	kfree(psb_intel_crtc);
 }
 
+static void cdv_intel_crtc_disable(struct drm_crtc *crtc)
+{
+	struct gtt_range *gt;
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	if (crtc->fb) {
+		gt = to_psb_fb(crtc->fb)->gtt;
+		psb_gtt_unpin(gt);
+	}
+}
+
 const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
 	.dpms = cdv_intel_crtc_dpms,
 	.mode_fixup = cdv_intel_crtc_mode_fixup,
@@ -1607,6 +1620,7 @@ const struct drm_crtc_helper_funcs cdv_intel_helper_funcs = {
 	.mode_set_base = cdv_intel_pipe_set_base,
 	.prepare = cdv_intel_crtc_prepare,
 	.commit = cdv_intel_crtc_commit,
+	.disable = cdv_intel_crtc_disable,
 };
 
 const struct drm_crtc_funcs cdv_intel_crtc_funcs = {
diff --git a/drivers/gpu/drm/gma500/framebuffer.c b/drivers/gpu/drm/gma500/framebuffer.c
index 5732b57..71a4b61 100644
--- a/drivers/gpu/drm/gma500/framebuffer.c
+++ b/drivers/gpu/drm/gma500/framebuffer.c
@@ -793,8 +793,8 @@ void psb_modeset_init(struct drm_device *dev)
 	for (i = 0; i < dev_priv->num_pipe; i++)
 		psb_intel_crtc_init(dev, i, mode_dev);
 
-	dev->mode_config.max_width = 2048;
-	dev->mode_config.max_height = 2048;
+	dev->mode_config.max_width = 4096;
+	dev->mode_config.max_height = 4096;
 
 	psb_setup_outputs(dev);
 
diff --git a/drivers/gpu/drm/gma500/psb_intel_display.c b/drivers/gpu/drm/gma500/psb_intel_display.c
index 8033526..8714d6a 100644
--- a/drivers/gpu/drm/gma500/psb_intel_display.c
+++ b/drivers/gpu/drm/gma500/psb_intel_display.c
@@ -1246,6 +1246,19 @@ void psb_intel_crtc_destroy(struct drm_crtc *crtc)
 	kfree(psb_intel_crtc);
 }
 
+static void psb_intel_crtc_disable(struct drm_crtc *crtc)
+{
+	struct gtt_range *gt;
+	struct drm_crtc_helper_funcs *crtc_funcs = crtc->helper_private;
+
+	crtc_funcs->dpms(crtc, DRM_MODE_DPMS_OFF);
+
+	if (crtc->fb) {
+		gt = to_psb_fb(crtc->fb)->gtt;
+		psb_gtt_unpin(gt);
+	}
+}
+
 const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.dpms = psb_intel_crtc_dpms,
 	.mode_fixup = psb_intel_crtc_mode_fixup,
@@ -1253,6 +1266,7 @@ const struct drm_crtc_helper_funcs psb_intel_helper_funcs = {
 	.mode_set_base = psb_intel_pipe_set_base,
 	.prepare = psb_intel_crtc_prepare,
 	.commit = psb_intel_crtc_commit,
+	.disable = psb_intel_crtc_disable,
 };
 
 const struct drm_crtc_funcs psb_intel_crtc_funcs = {
diff --git a/drivers/gpu/drm/i915/intel_lvds.c b/drivers/gpu/drm/i915/intel_lvds.c
index c78c988..32b6b78 100644
--- a/drivers/gpu/drm/i915/intel_lvds.c
+++ b/drivers/gpu/drm/i915/intel_lvds.c
@@ -742,10 +742,10 @@ static const struct dmi_system_id intel_no_lvds[] = {
 	},
 	{
 		.callback = intel_no_lvds_dmi_callback,
-		.ident = "Hewlett-Packard HP t5740e Thin Client",
+		.ident = "Hewlett-Packard HP t5740",
 		.matches = {
 			DMI_MATCH(DMI_BOARD_VENDOR, "Hewlett-Packard"),
-			DMI_MATCH(DMI_PRODUCT_NAME, "HP t5740e Thin Client"),
+			DMI_MATCH(DMI_PRODUCT_NAME, " t5740"),
 		},
 	},
 	{
diff --git a/drivers/gpu/drm/i915/intel_sdvo.c b/drivers/gpu/drm/i915/intel_sdvo.c
index d554f64..2ee6bf1 100644
--- a/drivers/gpu/drm/i915/intel_sdvo.c
+++ b/drivers/gpu/drm/i915/intel_sdvo.c
@@ -1603,11 +1603,14 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 	 * Assume that the preferred modes are
 	 * arranged in priority order.
 	 */
-	intel_ddc_get_modes(connector, intel_sdvo->i2c);
-	if (list_empty(&connector->probed_modes) == false)
-		goto end;
+	intel_ddc_get_modes(connector, &intel_sdvo->ddc);
 
-	/* Fetch modes from VBT */
+	/*
+	 * Fetch modes from VBT. For SDVO prefer the VBT mode since some
+	 * SDVO->LVDS transcoders can't cope with the EDID mode. Since
+	 * drm_mode_probed_add adds the mode at the head of the list we add it
+	 * last.
+	 */
 	if (dev_priv->sdvo_lvds_vbt_mode != NULL) {
 		newmode = drm_mode_duplicate(connector->dev,
 					     dev_priv->sdvo_lvds_vbt_mode);
@@ -1619,7 +1622,6 @@ static void intel_sdvo_get_lvds_modes(struct drm_connector *connector)
 		}
 	}
 
-end:
 	list_for_each_entry(newmode, &connector->probed_modes, head) {
 		if (newmode->type & DRM_MODE_TYPE_PREFERRED) {
 			intel_sdvo->sdvo_lvds_fixed_mode =
diff --git a/drivers/gpu/drm/mgag200/mgag200_mode.c b/drivers/gpu/drm/mgag200/mgag200_mode.c
index 85ef6cc..64e24f6 100644
--- a/drivers/gpu/drm/mgag200/mgag200_mode.c
+++ b/drivers/gpu/drm/mgag200/mgag200_mode.c
@@ -1042,13 +1042,14 @@ static int mga_crtc_mode_set(struct drm_crtc *crtc,
 			else
 				hi_pri_lvl = 5;
 
-			WREG8(0x1fde, 0x06);
-			WREG8(0x1fdf, hi_pri_lvl);
+			WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
+			WREG8(MGAREG_CRTCEXT_DATA, hi_pri_lvl);
 		} else {
+			WREG8(MGAREG_CRTCEXT_INDEX, 0x06);
 			if (mdev->reg_1e24 >= 0x01)
-				WREG8(0x1fdf, 0x03);
+				WREG8(MGAREG_CRTCEXT_DATA, 0x03);
 			else
-				WREG8(0x1fdf, 0x04);
+				WREG8(MGAREG_CRTCEXT_DATA, 0x04);
 		}
 	}
 	return 0;
diff --git a/drivers/gpu/drm/radeon/atombios_encoders.c b/drivers/gpu/drm/radeon/atombios_encoders.c
index 2eb418e..f14ce9a 100644
--- a/drivers/gpu/drm/radeon/atombios_encoders.c
+++ b/drivers/gpu/drm/radeon/atombios_encoders.c
@@ -396,6 +396,8 @@ atombios_digital_setup(struct drm_encoder *encoder, int action)
 int
 atombios_get_encoder_mode(struct drm_encoder *encoder)
 {
+	struct drm_device *dev = encoder->dev;
+	struct radeon_device *rdev = dev->dev_private;
 	struct radeon_encoder *radeon_encoder = to_radeon_encoder(encoder);
 	struct drm_connector *connector;
 	struct radeon_connector *radeon_connector;
@@ -421,7 +423,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	case DRM_MODE_CONNECTOR_DVII:
 	case DRM_MODE_CONNECTOR_HDMIB: /* HDMI-B is basically DL-DVI; analog works fine */
 		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-		    radeon_audio)
+		    radeon_audio &&
+		    !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else if (radeon_connector->use_digital)
 			return ATOM_ENCODER_MODE_DVI;
@@ -432,7 +435,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 	case DRM_MODE_CONNECTOR_HDMIA:
 	default:
 		if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-		    radeon_audio)
+		    radeon_audio &&
+		    !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else
 			return ATOM_ENCODER_MODE_DVI;
@@ -446,7 +450,8 @@ atombios_get_encoder_mode(struct drm_encoder *encoder)
 		    (dig_connector->dp_sink_type == CONNECTOR_OBJECT_ID_eDP))
 			return ATOM_ENCODER_MODE_DP;
 		else if (drm_detect_hdmi_monitor(radeon_connector->edid) &&
-			 radeon_audio)
+			 radeon_audio &&
+			 !ASIC_IS_DCE6(rdev)) /* remove once we support DCE6 */
 			return ATOM_ENCODER_MODE_HDMI;
 		else
 			return ATOM_ENCODER_MODE_DVI;
diff --git a/drivers/gpu/drm/radeon/evergreen.c b/drivers/gpu/drm/radeon/evergreen.c
index 5cec317..f3e0e8e 100644
--- a/drivers/gpu/drm/radeon/evergreen.c
+++ b/drivers/gpu/drm/radeon/evergreen.c
@@ -3221,6 +3221,12 @@ static int evergreen_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -3360,10 +3366,6 @@ int evergreen_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
@@ -3423,8 +3425,7 @@ void evergreen_fini(struct radeon_device *rdev)
 
 void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
 {
-	u32 link_width_cntl, speed_cntl, mask;
-	int ret;
+	u32 link_width_cntl, speed_cntl;
 
 	if (radeon_pcie_gen2 == 0)
 		return;
@@ -3439,11 +3440,8 @@ void evergreen_pcie_gen2_enable(struct radeon_device *rdev)
 	if (ASIC_IS_X2(rdev))
 		return;
 
-	ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
-	if (ret != 0)
-		return;
-
-	if (!(mask & DRM_PCIE_SPEED_50))
+	if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+		(rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
 		return;
 
 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
diff --git a/drivers/gpu/drm/radeon/ni.c b/drivers/gpu/drm/radeon/ni.c
index 62ff39f..b55413e 100644
--- a/drivers/gpu/drm/radeon/ni.c
+++ b/drivers/gpu/drm/radeon/ni.c
@@ -1298,6 +1298,12 @@ static int cayman_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -1422,10 +1428,6 @@ int cayman_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
 
diff --git a/drivers/gpu/drm/radeon/r100.c b/drivers/gpu/drm/radeon/r100.c
index b08b5b9..1714fbe 100644
--- a/drivers/gpu/drm/radeon/r100.c
+++ b/drivers/gpu/drm/radeon/r100.c
@@ -4038,6 +4038,12 @@ static int r100_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r100.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -4193,9 +4199,6 @@ int r100_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/r300.c b/drivers/gpu/drm/radeon/r300.c
index 646a192..9c96b51 100644
--- a/drivers/gpu/drm/radeon/r300.c
+++ b/drivers/gpu/drm/radeon/r300.c
@@ -1382,6 +1382,12 @@ static int r300_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -1516,9 +1522,6 @@ int r300_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/r420.c b/drivers/gpu/drm/radeon/r420.c
index f2f5bf6..e12d8df 100644
--- a/drivers/gpu/drm/radeon/r420.c
+++ b/drivers/gpu/drm/radeon/r420.c
@@ -265,6 +265,12 @@ static int r420_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -411,10 +417,6 @@ int r420_init(struct radeon_device *rdev)
 	if (r) {
 		return r;
 	}
-	r = radeon_irq_kms_init(rdev);
-	if (r) {
-		return r;
-	}
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r) {
diff --git a/drivers/gpu/drm/radeon/r520.c b/drivers/gpu/drm/radeon/r520.c
index 079d3c5..f06c2e4 100644
--- a/drivers/gpu/drm/radeon/r520.c
+++ b/drivers/gpu/drm/radeon/r520.c
@@ -194,6 +194,12 @@ static int r520_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -297,9 +303,6 @@ int r520_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/r600.c b/drivers/gpu/drm/radeon/r600.c
index d79c639..4c6b4156 100644
--- a/drivers/gpu/drm/radeon/r600.c
+++ b/drivers/gpu/drm/radeon/r600.c
@@ -2395,6 +2395,12 @@ int r600_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -2537,10 +2543,6 @@ int r600_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
@@ -3681,8 +3683,6 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
 {
 	u32 link_width_cntl, lanes, speed_cntl, training_cntl, tmp;
 	u16 link_cntl2;
-	u32 mask;
-	int ret;
 
 	if (radeon_pcie_gen2 == 0)
 		return;
@@ -3701,11 +3701,8 @@ static void r600_pcie_gen2_enable(struct radeon_device *rdev)
 	if (rdev->family <= CHIP_R600)
 		return;
 
-	ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
-	if (ret != 0)
-		return;
-
-	if (!(mask & DRM_PCIE_SPEED_50))
+	if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+		(rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
 		return;
 
 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
diff --git a/drivers/gpu/drm/radeon/radeon_device.c b/drivers/gpu/drm/radeon/radeon_device.c
index 7a3daeb..32cea73 100644
--- a/drivers/gpu/drm/radeon/radeon_device.c
+++ b/drivers/gpu/drm/radeon/radeon_device.c
@@ -431,18 +431,17 @@ bool radeon_card_posted(struct radeon_device *rdev)
 		return false;
 
 	/* first check CRTCs */
-	if (ASIC_IS_DCE41(rdev)) {
+	if (ASIC_IS_DCE4(rdev)) {
 		reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
 			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET);
-		if (reg & EVERGREEN_CRTC_MASTER_EN)
-			return true;
-	} else if (ASIC_IS_DCE4(rdev)) {
-		reg = RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC0_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC1_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
-			RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
+			if (rdev->num_crtc >= 4) {
+				reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC2_REGISTER_OFFSET) |
+					RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC3_REGISTER_OFFSET);
+			}
+			if (rdev->num_crtc >= 6) {
+				reg |= RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC4_REGISTER_OFFSET) |
+					RREG32(EVERGREEN_CRTC_CONTROL + EVERGREEN_CRTC5_REGISTER_OFFSET);
+			}
 		if (reg & EVERGREEN_CRTC_MASTER_EN)
 			return true;
 	} else if (ASIC_IS_AVIVO(rdev)) {
diff --git a/drivers/gpu/drm/radeon/rs400.c b/drivers/gpu/drm/radeon/rs400.c
index 2752f7f..21d2d28 100644
--- a/drivers/gpu/drm/radeon/rs400.c
+++ b/drivers/gpu/drm/radeon/rs400.c
@@ -417,6 +417,12 @@ static int rs400_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r100_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -535,9 +541,6 @@ int rs400_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rs600.c b/drivers/gpu/drm/radeon/rs600.c
index 78aa835..9a156a5 100644
--- a/drivers/gpu/drm/radeon/rs600.c
+++ b/drivers/gpu/drm/radeon/rs600.c
@@ -938,6 +938,12 @@ static int rs600_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -1062,9 +1068,6 @@ int rs600_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rs690.c b/drivers/gpu/drm/radeon/rs690.c
index 3b663fc..c2fc0e0 100644
--- a/drivers/gpu/drm/radeon/rs690.c
+++ b/drivers/gpu/drm/radeon/rs690.c
@@ -628,6 +628,12 @@ static int rs690_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -753,9 +759,6 @@ int rs690_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rv515.c b/drivers/gpu/drm/radeon/rv515.c
index aa8ef49..dd20348 100644
--- a/drivers/gpu/drm/radeon/rv515.c
+++ b/drivers/gpu/drm/radeon/rv515.c
@@ -386,6 +386,12 @@ static int rv515_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	rs600_irq_set(rdev);
 	rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 	/* 1M ring buffer */
@@ -516,9 +522,6 @@ int rv515_init(struct radeon_device *rdev)
 	r = radeon_fence_driver_init(rdev);
 	if (r)
 		return r;
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
 	/* Memory manager */
 	r = radeon_bo_init(rdev);
 	if (r)
diff --git a/drivers/gpu/drm/radeon/rv770.c b/drivers/gpu/drm/radeon/rv770.c
index ca8ffec..a4c4dc6 100644
--- a/drivers/gpu/drm/radeon/rv770.c
+++ b/drivers/gpu/drm/radeon/rv770.c
@@ -933,6 +933,12 @@ static int rv770_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = r600_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -1059,10 +1065,6 @@ int rv770_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ring_obj = NULL;
 	r600_ring_init(rdev, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX], 1024 * 1024);
 
@@ -1112,8 +1114,6 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
 {
 	u32 link_width_cntl, lanes, speed_cntl, tmp;
 	u16 link_cntl2;
-	u32 mask;
-	int ret;
 
 	if (radeon_pcie_gen2 == 0)
 		return;
@@ -1128,11 +1128,8 @@ static void rv770_pcie_gen2_enable(struct radeon_device *rdev)
 	if (ASIC_IS_X2(rdev))
 		return;
 
-	ret = drm_pcie_get_speed_cap_mask(rdev->ddev, &mask);
-	if (ret != 0)
-		return;
-
-	if (!(mask & DRM_PCIE_SPEED_50))
+	if ((rdev->pdev->bus->max_bus_speed != PCIE_SPEED_5_0GT) &&
+		(rdev->pdev->bus->max_bus_speed != PCIE_SPEED_8_0GT))
 		return;
 
 	DRM_INFO("enabling PCIE gen 2 link speeds, disable with radeon.pcie_gen2=0\n");
diff --git a/drivers/gpu/drm/radeon/si.c b/drivers/gpu/drm/radeon/si.c
index 7d0026b..d8cc781 100644
--- a/drivers/gpu/drm/radeon/si.c
+++ b/drivers/gpu/drm/radeon/si.c
@@ -1556,7 +1556,7 @@ static void si_gpu_init(struct radeon_device *rdev)
 	default:
 		rdev->config.si.max_shader_engines = 1;
 		rdev->config.si.max_tile_pipes = 4;
-		rdev->config.si.max_cu_per_sh = 2;
+		rdev->config.si.max_cu_per_sh = 5;
 		rdev->config.si.max_sh_per_se = 2;
 		rdev->config.si.max_backends_per_se = 4;
 		rdev->config.si.max_texture_channel_caches = 4;
@@ -3757,6 +3757,12 @@ static int si_startup(struct radeon_device *rdev)
 	}
 
 	/* Enable IRQ */
+	if (!rdev->irq.installed) {
+		r = radeon_irq_kms_init(rdev);
+		if (r)
+			return r;
+	}
+
 	r = si_irq_init(rdev);
 	if (r) {
 		DRM_ERROR("radeon: IH init failed (%d).\n", r);
@@ -3898,10 +3904,6 @@ int si_init(struct radeon_device *rdev)
 	if (r)
 		return r;
 
-	r = radeon_irq_kms_init(rdev);
-	if (r)
-		return r;
-
 	ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 	ring->ring_obj = NULL;
 	r600_ring_init(rdev, ring, 1024 * 1024);
diff --git a/drivers/hwmon/adm1021.c b/drivers/hwmon/adm1021.c
index fd1d1b1..f9df316 100644
--- a/drivers/hwmon/adm1021.c
+++ b/drivers/hwmon/adm1021.c
@@ -332,26 +332,68 @@ static int adm1021_detect(struct i2c_client *client,
 	man_id = i2c_smbus_read_byte_data(client, ADM1021_REG_MAN_ID);
 	dev_id = i2c_smbus_read_byte_data(client, ADM1021_REG_DEV_ID);
 
+	if (man_id < 0 || dev_id < 0)
+		return -ENODEV;
+
 	if (man_id == 0x4d && dev_id == 0x01)
 		type_name = "max1617a";
 	else if (man_id == 0x41) {
 		if ((dev_id & 0xF0) == 0x30)
 			type_name = "adm1023";
-		else
+		else if ((dev_id & 0xF0) == 0x00)
 			type_name = "adm1021";
+		else
+			return -ENODEV;
 	} else if (man_id == 0x49)
 		type_name = "thmc10";
 	else if (man_id == 0x23)
 		type_name = "gl523sm";
 	else if (man_id == 0x54)
 		type_name = "mc1066";
-	/* LM84 Mfr ID in a different place, and it has more unused bits */
-	else if (conv_rate == 0x00
-		 && (config & 0x7F) == 0x00
-		 && (status & 0xAB) == 0x00)
-		type_name = "lm84";
-	else
-		type_name = "max1617";
+	else {
+		int lte, rte, lhi, rhi, llo, rlo;
+
+		/* extra checks for LM84 and MAX1617 to avoid misdetections */
+
+		llo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(0));
+		rlo = i2c_smbus_read_byte_data(client, ADM1021_REG_THYST_R(1));
+
+		/* fail if any of the additional register reads failed */
+		if (llo < 0 || rlo < 0)
+			return -ENODEV;
+
+		lte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(0));
+		rte = i2c_smbus_read_byte_data(client, ADM1021_REG_TEMP(1));
+		lhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(0));
+		rhi = i2c_smbus_read_byte_data(client, ADM1021_REG_TOS_R(1));
+
+		/*
+		 * Fail for negative temperatures and negative high limits.
+		 * This check also catches read errors on the tested registers.
+		 */
+		if ((s8)lte < 0 || (s8)rte < 0 || (s8)lhi < 0 || (s8)rhi < 0)
+			return -ENODEV;
+
+		/* fail if all registers hold the same value */
+		if (lte == rte && lte == lhi && lte == rhi && lte == llo
+		    && lte == rlo)
+			return -ENODEV;
+
+		/*
+		 * LM84 Mfr ID is in a different place,
+		 * and it has more unused bits.
+		 */
+		if (conv_rate == 0x00
+		    && (config & 0x7F) == 0x00
+		    && (status & 0xAB) == 0x00) {
+			type_name = "lm84";
+		} else {
+			/* fail if low limits are larger than high limits */
+			if ((s8)llo > lhi || (s8)rlo > rhi)
+				return -ENODEV;
+			type_name = "max1617";
+		}
+	}
 
 	pr_debug("adm1021: Detected chip %s at adapter %d, address 0x%02x.\n",
 		 type_name, i2c_adapter_id(adapter), client->addr);
diff --git a/drivers/iio/frequency/adf4350.c b/drivers/iio/frequency/adf4350.c
index e35bb8f..3e2a01c 100644
--- a/drivers/iio/frequency/adf4350.c
+++ b/drivers/iio/frequency/adf4350.c
@@ -212,7 +212,7 @@ static int adf4350_set_freq(struct adf4350_state *st, unsigned long long freq)
 		(pdata->r2_user_settings & (ADF4350_REG2_PD_POLARITY_POS |
 		ADF4350_REG2_LDP_6ns | ADF4350_REG2_LDF_INT_N |
 		ADF4350_REG2_CHARGE_PUMP_CURR_uA(5000) |
-		ADF4350_REG2_MUXOUT(0x7) | ADF4350_REG2_NOISE_MODE(0x9)));
+		ADF4350_REG2_MUXOUT(0x7) | ADF4350_REG2_NOISE_MODE(0x3)));
 
 	st->regs[ADF4350_REG3] = pdata->r3_user_settings &
 				 (ADF4350_REG3_12BIT_CLKDIV(0xFFF) |
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.c b/drivers/infiniband/ulp/srpt/ib_srpt.c
index 9e1449f..1f269f1 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.c
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.c
@@ -2276,6 +2276,27 @@ static void srpt_close_ch(struct srpt_rdma_ch *ch)
 }
 
 /**
+ * srpt_shutdown_session() - Whether or not a session may be shut down.
+ */
+static int srpt_shutdown_session(struct se_session *se_sess)
+{
+	struct srpt_rdma_ch *ch = se_sess->fabric_sess_ptr;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ch->spinlock, flags);
+	if (ch->in_shutdown) {
+		spin_unlock_irqrestore(&ch->spinlock, flags);
+		return true;
+	}
+
+	ch->in_shutdown = true;
+	target_sess_cmd_list_set_waiting(se_sess);
+	spin_unlock_irqrestore(&ch->spinlock, flags);
+
+	return true;
+}
+
+/**
  * srpt_drain_channel() - Drain a channel by resetting the IB queue pair.
  * @cm_id: Pointer to the CM ID of the channel to be drained.
  *
@@ -2313,6 +2334,9 @@ static void srpt_drain_channel(struct ib_cm_id *cm_id)
 	spin_unlock_irq(&sdev->spinlock);
 
 	if (do_reset) {
+		if (ch->sess)
+			srpt_shutdown_session(ch->sess);
+
 		ret = srpt_ch_qp_err(ch);
 		if (ret < 0)
 			printk(KERN_ERR "Setting queue pair in error state"
@@ -3493,14 +3517,6 @@ static void srpt_release_cmd(struct se_cmd *se_cmd)
 }
 
 /**
- * srpt_shutdown_session() - Whether or not a session may be shut down.
- */
-static int srpt_shutdown_session(struct se_session *se_sess)
-{
-	return true;
-}
-
-/**
  * srpt_close_session() - Forcibly close a session.
  *
  * Callback function invoked by the TCM core to clean up sessions associated
diff --git a/drivers/infiniband/ulp/srpt/ib_srpt.h b/drivers/infiniband/ulp/srpt/ib_srpt.h
index 61e52b8..01b7791 100644
--- a/drivers/infiniband/ulp/srpt/ib_srpt.h
+++ b/drivers/infiniband/ulp/srpt/ib_srpt.h
@@ -326,6 +326,7 @@ struct srpt_rdma_ch {
 	u8			sess_name[36];
 	struct work_struct	release_work;
 	struct completion	*release_done;
+	bool			in_shutdown;
 };
 
 /**
diff --git a/drivers/input/touchscreen/egalax_ts.c b/drivers/input/touchscreen/egalax_ts.c
index 70524dd..be2a271 100644
--- a/drivers/input/touchscreen/egalax_ts.c
+++ b/drivers/input/touchscreen/egalax_ts.c
@@ -203,7 +203,7 @@ static int __devinit egalax_ts_probe(struct i2c_client *client,
 	input_set_abs_params(input_dev,
 			     ABS_MT_POSITION_X, 0, EGALAX_MAX_X, 0, 0);
 	input_set_abs_params(input_dev,
-			     ABS_MT_POSITION_X, 0, EGALAX_MAX_Y, 0, 0);
+			     ABS_MT_POSITION_Y, 0, EGALAX_MAX_Y, 0, 0);
 	input_mt_init_slots(input_dev, MAX_SUPPORT_POINTS);
 
 	input_set_drvdata(input_dev, ts);
diff --git a/drivers/iommu/amd_iommu.c b/drivers/iommu/amd_iommu.c
index c698cf6..e5c773d 100644
--- a/drivers/iommu/amd_iommu.c
+++ b/drivers/iommu/amd_iommu.c
@@ -598,11 +598,23 @@ retry:
 
 static void iommu_poll_events(struct amd_iommu *iommu)
 {
-	u32 head, tail;
+	u32 head, tail, status;
 	unsigned long flags;
 
 	spin_lock_irqsave(&iommu->lock, flags);
 
+	/* enable event interrupts again */
+	do {
+		/*
+		 * Workaround for Erratum ERBT1312
+		 * Clearing the EVT_INT bit may race in the hardware, so read
+		 * it again and make sure it was really cleared
+		 */
+		status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
+		writel(MMIO_STATUS_EVT_INT_MASK,
+		       iommu->mmio_base + MMIO_STATUS_OFFSET);
+	} while (status & MMIO_STATUS_EVT_INT_MASK);
+
 	head = readl(iommu->mmio_base + MMIO_EVT_HEAD_OFFSET);
 	tail = readl(iommu->mmio_base + MMIO_EVT_TAIL_OFFSET);
 
@@ -639,16 +651,25 @@ static void iommu_handle_ppr_entry(struct amd_iommu *iommu, u64 *raw)
 static void iommu_poll_ppr_log(struct amd_iommu *iommu)
 {
 	unsigned long flags;
-	u32 head, tail;
+	u32 head, tail, status;
 
 	if (iommu->ppr_log == NULL)
 		return;
 
-	/* enable ppr interrupts again */
-	writel(MMIO_STATUS_PPR_INT_MASK, iommu->mmio_base + MMIO_STATUS_OFFSET);
-
 	spin_lock_irqsave(&iommu->lock, flags);
 
+	/* enable ppr interrupts again */
+	do {
+		/*
+		 * Workaround for Erratum ERBT1312
+		 * Clearing the PPR_INT bit may race in the hardware, so read
+		 * it again and make sure it was really cleared
+		 */
+		status = readl(iommu->mmio_base + MMIO_STATUS_OFFSET);
+		writel(MMIO_STATUS_PPR_INT_MASK,
+		       iommu->mmio_base + MMIO_STATUS_OFFSET);
+	} while (status & MMIO_STATUS_PPR_INT_MASK);
+
 	head = readl(iommu->mmio_base + MMIO_PPR_HEAD_OFFSET);
 	tail = readl(iommu->mmio_base + MMIO_PPR_TAIL_OFFSET);
 
diff --git a/drivers/iommu/amd_iommu_types.h b/drivers/iommu/amd_iommu_types.h
index d0dab86..c6d556c 100644
--- a/drivers/iommu/amd_iommu_types.h
+++ b/drivers/iommu/amd_iommu_types.h
@@ -99,6 +99,7 @@
 #define PASID_MASK		0x000fffff
 
 /* MMIO status bits */
+#define MMIO_STATUS_EVT_INT_MASK	(1 << 1)
 #define MMIO_STATUS_COM_WAIT_INT_MASK	(1 << 2)
 #define MMIO_STATUS_PPR_INT_MASK	(1 << 6)
 
diff --git a/drivers/leds/leds-ot200.c b/drivers/leds/leds-ot200.c
index c464682..676e729 100644
--- a/drivers/leds/leds-ot200.c
+++ b/drivers/leds/leds-ot200.c
@@ -47,37 +47,37 @@ static struct ot200_led leds[] = {
 	{
 		.name = "led_1",
 		.port = 0x49,
-		.mask = BIT(7),
+		.mask = BIT(6),
 	},
 	{
 		.name = "led_2",
 		.port = 0x49,
-		.mask = BIT(6),
+		.mask = BIT(5),
 	},
 	{
 		.name = "led_3",
 		.port = 0x49,
-		.mask = BIT(5),
+		.mask = BIT(4),
 	},
 	{
 		.name = "led_4",
 		.port = 0x49,
-		.mask = BIT(4),
+		.mask = BIT(3),
 	},
 	{
 		.name = "led_5",
 		.port = 0x49,
-		.mask = BIT(3),
+		.mask = BIT(2),
 	},
 	{
 		.name = "led_6",
 		.port = 0x49,
-		.mask = BIT(2),
+		.mask = BIT(1),
 	},
 	{
 		.name = "led_7",
 		.port = 0x49,
-		.mask = BIT(1),
+		.mask = BIT(0),
 	}
 };
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 36c6003..4347a70 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -427,7 +427,17 @@ static void raid1_end_write_request(struct bio *bio, int error)
 
 		r1_bio->bios[mirror] = NULL;
 		to_put = bio;
-		set_bit(R1BIO_Uptodate, &r1_bio->state);
+		/*
+		 * Do not set R1BIO_Uptodate if the current device is
+		 * rebuilding or Faulty. This is because we cannot use
+		 * such device for properly reading the data back (we could
+		 * potentially use it, if the current write would have felt
+		 * before rdev->recovery_offset, but for simplicity we don't
+		 * check this here.
+		 */
+		if (test_bit(In_sync, &conf->mirrors[mirror].rdev->flags) &&
+		    !test_bit(Faulty, &conf->mirrors[mirror].rdev->flags))
+			set_bit(R1BIO_Uptodate, &r1_bio->state);
 
 		/* Maybe we can clear some bad blocks. */
 		if (is_badblock(conf->mirrors[mirror].rdev,
@@ -876,17 +886,17 @@ static void allow_barrier(struct r1conf *conf)
 	wake_up(&conf->wait_barrier);
 }
 
-static void freeze_array(struct r1conf *conf)
+static void freeze_array(struct r1conf *conf, int extra)
 {
 	/* stop syncio and normal IO and wait for everything to
 	 * go quite.
 	 * We increment barrier and nr_waiting, and then
-	 * wait until nr_pending match nr_queued+1
+	 * wait until nr_pending match nr_queued+extra
 	 * This is called in the context of one normal IO request
 	 * that has failed. Thus any sync request that might be pending
 	 * will be blocked by nr_pending, and we need to wait for
 	 * pending IO requests to complete or be queued for re-try.
-	 * Thus the number queued (nr_queued) plus this request (1)
+	 * Thus the number queued (nr_queued) plus this request (extra)
 	 * must match the number of pending IOs (nr_pending) before
 	 * we continue.
 	 */
@@ -894,7 +904,7 @@ static void freeze_array(struct r1conf *conf)
 	conf->barrier++;
 	conf->nr_waiting++;
 	wait_event_lock_irq(conf->wait_barrier,
-			    conf->nr_pending == conf->nr_queued+1,
+			    conf->nr_pending == conf->nr_queued+extra,
 			    conf->resync_lock,
 			    flush_pending_writes(conf));
 	spin_unlock_irq(&conf->resync_lock);
@@ -1549,8 +1559,8 @@ static int raid1_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 		 * we wait for all outstanding requests to complete.
 		 */
 		synchronize_sched();
-		raise_barrier(conf);
-		lower_barrier(conf);
+		freeze_array(conf, 0);
+		unfreeze_array(conf);
 		clear_bit(Unmerged, &rdev->flags);
 	}
 	md_integrity_add_rdev(rdev, mddev);
@@ -1598,11 +1608,11 @@ static int raid1_remove_disk(struct mddev *mddev, struct md_rdev *rdev)
 			 */
 			struct md_rdev *repl =
 				conf->mirrors[conf->raid_disks + number].rdev;
-			raise_barrier(conf);
+			freeze_array(conf, 0);
 			clear_bit(Replacement, &repl->flags);
 			p->rdev = repl;
 			conf->mirrors[conf->raid_disks + number].rdev = NULL;
-			lower_barrier(conf);
+			unfreeze_array(conf);
 			clear_bit(WantReplacement, &rdev->flags);
 		} else
 			clear_bit(WantReplacement, &rdev->flags);
@@ -2219,7 +2229,7 @@ static void handle_read_error(struct r1conf *conf, struct r1bio *r1_bio)
 	 * frozen
 	 */
 	if (mddev->ro == 0) {
-		freeze_array(conf);
+		freeze_array(conf, 1);
 		fix_read_error(conf, r1_bio->read_disk,
 			       r1_bio->sector, r1_bio->sectors);
 		unfreeze_array(conf);
@@ -2983,7 +2993,7 @@ static int raid1_reshape(struct mddev *mddev)
 		return -ENOMEM;
 	}
 
-	raise_barrier(conf);
+	freeze_array(conf, 0);
 
 	/* ok, everything is stopped */
 	oldpool = conf->r1bio_pool;
@@ -3014,7 +3024,7 @@ static int raid1_reshape(struct mddev *mddev)
 	conf->raid_disks = mddev->raid_disks = raid_disks;
 	mddev->delta_disks = 0;
 
-	lower_barrier(conf);
+	unfreeze_array(conf);
 
 	set_bit(MD_RECOVERY_NEEDED, &mddev->recovery);
 	md_wakeup_thread(mddev->thread);
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index bec9db8..cd7394b 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -475,7 +475,17 @@ static void raid10_end_write_request(struct bio *bio, int error)
 		sector_t first_bad;
 		int bad_sectors;
 
-		set_bit(R10BIO_Uptodate, &r10_bio->state);
+		/*
+		 * Do not set R10BIO_Uptodate if the current device is
+		 * rebuilding or Faulty. This is because we cannot use
+		 * such device for properly reading the data back (we could
+		 * potentially use it, if the current write would have felt
+		 * before rdev->recovery_offset, but for simplicity we don't
+		 * check this here.
+		 */
+		if (test_bit(In_sync, &rdev->flags) &&
+		    !test_bit(Faulty, &rdev->flags))
+			set_bit(R10BIO_Uptodate, &r10_bio->state);
 
 		/* Maybe we can clear some bad blocks. */
 		if (is_badblock(rdev,
@@ -1011,17 +1021,17 @@ static void allow_barrier(struct r10conf *conf)
 	wake_up(&conf->wait_barrier);
 }
 
-static void freeze_array(struct r10conf *conf)
+static void freeze_array(struct r10conf *conf, int extra)
 {
 	/* stop syncio and normal IO and wait for everything to
 	 * go quiet.
 	 * We increment barrier and nr_waiting, and then
-	 * wait until nr_pending match nr_queued+1
+	 * wait until nr_pending match nr_queued+extra
 	 * This is called in the context of one normal IO request
 	 * that has failed. Thus any sync request that might be pending
 	 * will be blocked by nr_pending, and we need to wait for
 	 * pending IO requests to complete or be queued for re-try.
-	 * Thus the number queued (nr_queued) plus this request (1)
+	 * Thus the number queued (nr_queued) plus this request (extra)
 	 * must match the number of pending IOs (nr_pending) before
 	 * we continue.
 	 */
@@ -1029,7 +1039,7 @@ static void freeze_array(struct r10conf *conf)
 	conf->barrier++;
 	conf->nr_waiting++;
 	wait_event_lock_irq(conf->wait_barrier,
-			    conf->nr_pending == conf->nr_queued+1,
+			    conf->nr_pending == conf->nr_queued+extra,
 			    conf->resync_lock,
 			    flush_pending_writes(conf));
 
@@ -1730,8 +1740,8 @@ static int raid10_add_disk(struct mddev *mddev, struct md_rdev *rdev)
 		 * we wait for all outstanding requests to complete.
 		 */
 		synchronize_sched();
-		raise_barrier(conf, 0);
-		lower_barrier(conf);
+		freeze_array(conf, 0);
+		unfreeze_array(conf);
 		clear_bit(Unmerged, &rdev->flags);
 	}
 	md_integrity_add_rdev(rdev, mddev);
@@ -2524,7 +2534,7 @@ static void handle_read_error(struct mddev *mddev, struct r10bio *r10_bio)
 	r10_bio->devs[slot].bio = NULL;
 
 	if (mddev->ro == 0) {
-		freeze_array(conf);
+		freeze_array(conf, 1);
 		fix_read_error(conf, mddev, r10_bio);
 		unfreeze_array(conf);
 	} else
diff --git a/drivers/net/ethernet/broadcom/tg3.c b/drivers/net/ethernet/broadcom/tg3.c
index fbc21a9..06d075c 100644
--- a/drivers/net/ethernet/broadcom/tg3.c
+++ b/drivers/net/ethernet/broadcom/tg3.c
@@ -2847,6 +2847,31 @@ static int tg3_5700_link_polarity(struct tg3 *tp, u32 speed)
 	return 0;
 }
 
+static bool tg3_phy_power_bug(struct tg3 *tp)
+{
+	switch (GET_ASIC_REV(tp->pci_chip_rev_id)) {
+	case ASIC_REV_5700:
+	case ASIC_REV_5704:
+		return true;
+	case ASIC_REV_5780:
+		if (tp->phy_flags & TG3_PHYFLG_MII_SERDES)
+			return true;
+		return false;
+	case ASIC_REV_5717:
+		if (!tp->pci_fn)
+			return true;
+		return false;
+	case ASIC_REV_5719:
+	case ASIC_REV_5720:
+		if ((tp->phy_flags & TG3_PHYFLG_PHY_SERDES) &&
+		    !tp->pci_fn)
+			return true;
+		return false;
+	}
+
+	return false;
+}
+
 static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
 {
 	u32 val;
@@ -2903,12 +2928,7 @@ static void tg3_power_down_phy(struct tg3 *tp, bool do_low_power)
 	/* The PHY should not be powered down on some chips because
 	 * of bugs.
 	 */
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5700 ||
-	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5704 ||
-	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5780 &&
-	     (tp->phy_flags & TG3_PHYFLG_MII_SERDES)) ||
-	    (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5717 &&
-	     !tp->pci_fn))
+	if (tg3_phy_power_bug(tp))
 		return;
 
 	if (GET_CHIP_REV(tp->pci_chip_rev_id) == CHIPREV_5784_AX ||
@@ -6752,6 +6772,20 @@ static inline int tg3_4g_overflow_test(dma_addr_t mapping, int len)
 	return (base > 0xffffdcc0) && (base + len + 8 < base);
 }
 
+/* Test for TSO DMA buffers that cross into regions which are within MSS bytes
+ * of any 4GB boundaries: 4G, 8G, etc
+ */
+static inline int tg3_4g_tso_overflow_test(struct tg3 *tp, dma_addr_t mapping,
+					   u32 len, u32 mss)
+{
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5762 && mss) {
+		u32 base = (u32) mapping & 0xffffffff;
+
+		return ((base + len + (mss & 0x3fff)) < base);
+	}
+	return 0;
+}
+
 /* Test for DMA addresses > 40-bit */
 static inline int tg3_40bit_overflow_test(struct tg3 *tp, dma_addr_t mapping,
 					  int len)
@@ -6788,6 +6822,9 @@ static bool tg3_tx_frag_set(struct tg3_napi *tnapi, u32 *entry, u32 *budget,
 	if (tg3_4g_overflow_test(map, len))
 		hwbug = true;
 
+	if (tg3_4g_tso_overflow_test(tp, map, len, mss))
+		hwbug = true;
+
 	if (tg3_40bit_overflow_test(tp, map, len))
 		hwbug = true;
 
@@ -8662,6 +8699,14 @@ static void tg3_rss_write_indir_tbl(struct tg3 *tp)
 	}
 }
 
+static inline u32 tg3_lso_rd_dma_workaround_bit(struct tg3 *tp)
+{
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719)
+		return TG3_LSO_RD_DMA_TX_LENGTH_WA_5719;
+	else
+		return TG3_LSO_RD_DMA_TX_LENGTH_WA_5720;
+}
+
 /* tp->lock is held. */
 static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 {
@@ -9313,16 +9358,17 @@ static int tg3_reset_hw(struct tg3 *tp, int reset_phy)
 	tw32_f(RDMAC_MODE, rdmac_mode);
 	udelay(40);
 
-	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719) {
+	if (GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5719 ||
+	    GET_ASIC_REV(tp->pci_chip_rev_id) == ASIC_REV_5720) {
 		for (i = 0; i < TG3_NUM_RDMA_CHANNELS; i++) {
 			if (tr32(TG3_RDMA_LENGTH + (i << 2)) > TG3_MAX_MTU(tp))
 				break;
 		}
 		if (i < TG3_NUM_RDMA_CHANNELS) {
 			val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
-			val |= TG3_LSO_RD_DMA_TX_LENGTH_WA;
+			val |= tg3_lso_rd_dma_workaround_bit(tp);
 			tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
-			tg3_flag_set(tp, 5719_RDMA_BUG);
+			tg3_flag_set(tp, 5719_5720_RDMA_BUG);
 		}
 	}
 
@@ -9678,15 +9724,15 @@ static void tg3_periodic_fetch_stats(struct tg3 *tp)
 	TG3_STAT_ADD32(&sp->tx_ucast_packets, MAC_TX_STATS_UCAST);
 	TG3_STAT_ADD32(&sp->tx_mcast_packets, MAC_TX_STATS_MCAST);
 	TG3_STAT_ADD32(&sp->tx_bcast_packets, MAC_TX_STATS_BCAST);
-	if (unlikely(tg3_flag(tp, 5719_RDMA_BUG) &&
+	if (unlikely(tg3_flag(tp, 5719_5720_RDMA_BUG) &&
 		     (sp->tx_ucast_packets.low + sp->tx_mcast_packets.low +
 		      sp->tx_bcast_packets.low) > TG3_NUM_RDMA_CHANNELS)) {
 		u32 val;
 
 		val = tr32(TG3_LSO_RD_DMA_CRPTEN_CTRL);
-		val &= ~TG3_LSO_RD_DMA_TX_LENGTH_WA;
+		val &= ~tg3_lso_rd_dma_workaround_bit(tp);
 		tw32(TG3_LSO_RD_DMA_CRPTEN_CTRL, val);
-		tg3_flag_clear(tp, 5719_RDMA_BUG);
+		tg3_flag_clear(tp, 5719_5720_RDMA_BUG);
 	}
 
 	TG3_STAT_ADD32(&sp->rx_octets, MAC_RX_STATS_OCTETS);
diff --git a/drivers/net/ethernet/broadcom/tg3.h b/drivers/net/ethernet/broadcom/tg3.h
index 3a58339..786ae2d 100644
--- a/drivers/net/ethernet/broadcom/tg3.h
+++ b/drivers/net/ethernet/broadcom/tg3.h
@@ -168,6 +168,7 @@
 #define   ASIC_REV_USE_PROD_ID_REG	 0x0f
 #define   ASIC_REV_5784			 0x5784
 #define   ASIC_REV_5761			 0x5761
+#define   ASIC_REV_5762			 0x5762
 #define   ASIC_REV_5785			 0x5785
 #define   ASIC_REV_57780		 0x57780
 #define   ASIC_REV_5717			 0x5717
@@ -1378,7 +1379,8 @@
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL	0x00004910
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_BD_4K	 0x00030000
 #define TG3_LSO_RD_DMA_CRPTEN_CTRL_BLEN_LSO_4K	 0x000c0000
-#define TG3_LSO_RD_DMA_TX_LENGTH_WA	 0x02000000
+#define TG3_LSO_RD_DMA_TX_LENGTH_WA_5719	 0x02000000
+#define TG3_LSO_RD_DMA_TX_LENGTH_WA_5720	 0x00200000
 /* 0x4914 --> 0x4be0 unused */
 
 #define TG3_NUM_RDMA_CHANNELS		4
@@ -2965,7 +2967,7 @@ enum TG3_FLAGS {
 	TG3_FLAG_L1PLLPD_EN,
 	TG3_FLAG_APE_HAS_NCSI,
 	TG3_FLAG_4K_FIFO_LIMIT,
-	TG3_FLAG_5719_RDMA_BUG,
+	TG3_FLAG_5719_5720_RDMA_BUG,
 	TG3_FLAG_RESET_TASK_PENDING,
 	TG3_FLAG_5705_PLUS,
 	TG3_FLAG_IS_5788,
diff --git a/drivers/net/wireless/ath/ath9k/Kconfig b/drivers/net/wireless/ath/ath9k/Kconfig
index c7aa664..1b43b83 100644
--- a/drivers/net/wireless/ath/ath9k/Kconfig
+++ b/drivers/net/wireless/ath/ath9k/Kconfig
@@ -89,13 +89,17 @@ config ATH9K_MAC_DEBUG
 	  This option enables collection of statistics for Rx/Tx status
 	  data and some other MAC related statistics
 
-config ATH9K_RATE_CONTROL
+config ATH9K_LEGACY_RATE_CONTROL
 	bool "Atheros ath9k rate control"
 	depends on ATH9K
-	default y
+	default n
 	---help---
 	  Say Y, if you want to use the ath9k specific rate control
-	  module instead of minstrel_ht.
+	  module instead of minstrel_ht. Be warned that there are various
+	  issues with the ath9k RC and minstrel is a more robust algorithm.
+	  Note that even if this option is selected, "ath9k_rate_control"
+	  has to be passed to mac80211 using the module parameter,
+	  ieee80211_default_rc_algo.
 
 config ATH9K_HTC
        tristate "Atheros HTC based wireless cards support"
diff --git a/drivers/net/wireless/ath/ath9k/Makefile b/drivers/net/wireless/ath/ath9k/Makefile
index 2ad8f94..75ee9e7 100644
--- a/drivers/net/wireless/ath/ath9k/Makefile
+++ b/drivers/net/wireless/ath/ath9k/Makefile
@@ -8,7 +8,7 @@ ath9k-y +=	beacon.o \
 		antenna.o
 
 ath9k-$(CONFIG_ATH9K_BTCOEX_SUPPORT) += mci.o
-ath9k-$(CONFIG_ATH9K_RATE_CONTROL) += rc.o
+ath9k-$(CONFIG_ATH9K_LEGACY_RATE_CONTROL) += rc.o
 ath9k-$(CONFIG_ATH9K_PCI) += pci.o
 ath9k-$(CONFIG_ATH9K_AHB) += ahb.o
 ath9k-$(CONFIG_ATH9K_DEBUGFS) += debug.o
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
index 6f7cf49..2ad5703 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_2p2_initvals.h
@@ -778,11 +778,11 @@ static const u32 ar9300Common_rx_gain_table_2p2[][2] = {
 	{0x0000a074, 0x00000000},
 	{0x0000a078, 0x00000000},
 	{0x0000a07c, 0x00000000},
-	{0x0000a080, 0x1a1a1a1a},
-	{0x0000a084, 0x1a1a1a1a},
-	{0x0000a088, 0x1a1a1a1a},
-	{0x0000a08c, 0x1a1a1a1a},
-	{0x0000a090, 0x171a1a1a},
+	{0x0000a080, 0x22222229},
+	{0x0000a084, 0x1d1d1d1d},
+	{0x0000a088, 0x1d1d1d1d},
+	{0x0000a08c, 0x1d1d1d1d},
+	{0x0000a090, 0x171d1d1d},
 	{0x0000a094, 0x11111717},
 	{0x0000a098, 0x00030311},
 	{0x0000a09c, 0x00000000},
diff --git a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
index 3a1ff55..51dd475 100644
--- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.h
@@ -68,13 +68,16 @@
 #define AR9300_BASE_ADDR 0x3ff
 #define AR9300_BASE_ADDR_512 0x1ff
 
-#define AR9300_OTP_BASE			0x14000
-#define AR9300_OTP_STATUS		0x15f18
+#define AR9300_OTP_BASE \
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30000 : 0x14000)
+#define AR9300_OTP_STATUS \
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x30018 : 0x15f18)
 #define AR9300_OTP_STATUS_TYPE		0x7
 #define AR9300_OTP_STATUS_VALID		0x4
 #define AR9300_OTP_STATUS_ACCESS_BUSY	0x2
 #define AR9300_OTP_STATUS_SM_BUSY	0x1
-#define AR9300_OTP_READ_DATA		0x15f1c
+#define AR9300_OTP_READ_DATA \
+		((AR_SREV_9340(ah) || AR_SREV_9550(ah)) ? 0x3001c : 0x15f1c)
 
 enum targetPowerHTRates {
 	HT_TARGET_RATE_0_8_16,
diff --git a/drivers/net/wireless/ath/ath9k/init.c b/drivers/net/wireless/ath/ath9k/init.c
index f337121..d6f6dd3 100644
--- a/drivers/net/wireless/ath/ath9k/init.c
+++ b/drivers/net/wireless/ath/ath9k/init.c
@@ -707,8 +707,7 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	hw->wiphy->iface_combinations = &if_comb;
 	hw->wiphy->n_iface_combinations = 1;
 
-	if (AR_SREV_5416(sc->sc_ah))
-		hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
+	hw->wiphy->flags &= ~WIPHY_FLAG_PS_ON_BY_DEFAULT;
 
 	hw->wiphy->flags |= WIPHY_FLAG_IBSS_RSN;
 	hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
@@ -750,10 +749,6 @@ void ath9k_set_hw_capab(struct ath_softc *sc, struct ieee80211_hw *hw)
 	sc->ant_rx = hw->wiphy->available_antennas_rx;
 	sc->ant_tx = hw->wiphy->available_antennas_tx;
 
-#ifdef CONFIG_ATH9K_RATE_CONTROL
-	hw->rate_control_algorithm = "ath9k_rate_control";
-#endif
-
 	if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_2GHZ)
 		hw->wiphy->bands[IEEE80211_BAND_2GHZ] =
 			&sc->sbands[IEEE80211_BAND_2GHZ];
diff --git a/drivers/net/wireless/ath/ath9k/rc.h b/drivers/net/wireless/ath/ath9k/rc.h
index 75f8e9b..12cf122 100644
--- a/drivers/net/wireless/ath/ath9k/rc.h
+++ b/drivers/net/wireless/ath/ath9k/rc.h
@@ -219,7 +219,7 @@ struct ath_rate_priv {
 	struct ath_rc_stats rcstats[RATE_TABLE_SIZE];
 };
 
-#ifdef CONFIG_ATH9K_RATE_CONTROL
+#ifdef CONFIG_ATH9K_LEGACY_RATE_CONTROL
 int ath_rate_control_register(void);
 void ath_rate_control_unregister(void);
 #else
diff --git a/drivers/net/wireless/b43/main.c b/drivers/net/wireless/b43/main.c
index 54ecf96..f2e4426 100644
--- a/drivers/net/wireless/b43/main.c
+++ b/drivers/net/wireless/b43/main.c
@@ -2423,7 +2423,7 @@ static void b43_request_firmware(struct work_struct *work)
 	for (i = 0; i < B43_NR_FWTYPES; i++) {
 		errmsg = ctx->errors[i];
 		if (strlen(errmsg))
-			b43err(dev->wl, errmsg);
+			b43err(dev->wl, "%s", errmsg);
 	}
 	b43_print_fw_helptext(dev->wl, 1);
 	goto out;
diff --git a/drivers/net/wireless/iwlwifi/dvm/sta.c b/drivers/net/wireless/iwlwifi/dvm/sta.c
index efe8a4f..12e06f3 100644
--- a/drivers/net/wireless/iwlwifi/dvm/sta.c
+++ b/drivers/net/wireless/iwlwifi/dvm/sta.c
@@ -746,7 +746,7 @@ void iwl_restore_stations(struct iwl_priv *priv, struct iwl_rxon_context *ctx)
 					memcpy(&lq, priv->stations[i].lq,
 					       sizeof(struct iwl_link_quality_cmd));
 
-				if (!memcmp(&lq, &zero_lq, sizeof(lq)))
+				if (memcmp(&lq, &zero_lq, sizeof(lq)))
 					send_lq = true;
 			}
 			spin_unlock_bh(&priv->sta_lock);
diff --git a/drivers/net/xen-netback/netback.c b/drivers/net/xen-netback/netback.c
index 6aa059e..9084f8e 100644
--- a/drivers/net/xen-netback/netback.c
+++ b/drivers/net/xen-netback/netback.c
@@ -46,11 +46,33 @@
 #include <asm/xen/hypercall.h>
 #include <asm/xen/page.h>
 
+/*
+ * This is the maximum slots a skb can have. If a guest sends a skb
+ * which exceeds this limit it is considered malicious.
+ */
+#define FATAL_SKB_SLOTS_DEFAULT 20
+static unsigned int fatal_skb_slots = FATAL_SKB_SLOTS_DEFAULT;
+module_param(fatal_skb_slots, uint, 0444);
+
+/*
+ * To avoid confusion, we define XEN_NETBK_LEGACY_SLOTS_MAX indicating
+ * the maximum slots a valid packet can use. Now this value is defined
+ * to be XEN_NETIF_NR_SLOTS_MIN, which is supposed to be supported by
+ * all backend.
+ */
+#define XEN_NETBK_LEGACY_SLOTS_MAX XEN_NETIF_NR_SLOTS_MIN
+
+typedef unsigned int pending_ring_idx_t;
+#define INVALID_PENDING_RING_IDX (~0U)
+
 struct pending_tx_info {
-	struct xen_netif_tx_request req;
+	struct xen_netif_tx_request req; /* coalesced tx request */
 	struct xenvif *vif;
+	pending_ring_idx_t head; /* head != INVALID_PENDING_RING_IDX
+				  * if it is head of one or more tx
+				  * reqs
+				  */
 };
-typedef unsigned int pending_ring_idx_t;
 
 struct netbk_rx_meta {
 	int id;
@@ -101,7 +123,11 @@ struct xen_netbk {
 	atomic_t netfront_count;
 
 	struct pending_tx_info pending_tx_info[MAX_PENDING_REQS];
-	struct gnttab_copy tx_copy_ops[MAX_PENDING_REQS];
+	/* Coalescing tx requests before copying makes number of grant
+	 * copy ops greater or equal to number of slots required. In
+	 * worst case a tx request consumes 2 gnttab_copy.
+	 */
+	struct gnttab_copy tx_copy_ops[2*MAX_PENDING_REQS];
 
 	u16 pending_ring[MAX_PENDING_REQS];
 
@@ -117,6 +143,16 @@ struct xen_netbk {
 static struct xen_netbk *xen_netbk;
 static int xen_netbk_group_nr;
 
+/*
+ * If head != INVALID_PENDING_RING_IDX, it means this tx request is head of
+ * one or more merged tx requests, otherwise it is the continuation of
+ * previous tx request.
+ */
+static inline int pending_tx_is_head(struct xen_netbk *netbk, RING_IDX idx)
+{
+	return netbk->pending_tx_info[idx].head != INVALID_PENDING_RING_IDX;
+}
+
 void xen_netbk_add_xenvif(struct xenvif *vif)
 {
 	int i;
@@ -249,6 +285,7 @@ static int max_required_rx_slots(struct xenvif *vif)
 {
 	int max = DIV_ROUND_UP(vif->dev->mtu, PAGE_SIZE);
 
+	/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
 	if (vif->can_sg || vif->gso || vif->gso_prefix)
 		max += MAX_SKB_FRAGS + 1; /* extra_info + frags */
 
@@ -626,6 +663,7 @@ static void xen_netbk_rx_action(struct xen_netbk *netbk)
 		__skb_queue_tail(&rxq, skb);
 
 		/* Filled the batch queue? */
+		/* XXX FIXME: RX path dependent on MAX_SKB_FRAGS */
 		if (count + MAX_SKB_FRAGS >= XEN_NETIF_RX_RING_SIZE)
 			break;
 	}
@@ -873,47 +911,99 @@ static int netbk_count_requests(struct xenvif *vif,
 				int work_to_do)
 {
 	RING_IDX cons = vif->tx.req_cons;
-	int frags = 0;
+	int slots = 0;
+	int drop_err = 0;
+	int more_data;
 
 	if (!(first->flags & XEN_NETTXF_more_data))
 		return 0;
 
 	do {
-		if (frags >= work_to_do) {
-			netdev_err(vif->dev, "Need more frags\n");
+		struct xen_netif_tx_request dropped_tx = { 0 };
+
+		if (slots >= work_to_do) {
+			netdev_err(vif->dev,
+				   "Asked for %d slots but exceeds this limit\n",
+				   work_to_do);
 			netbk_fatal_tx_err(vif);
 			return -ENODATA;
 		}
 
-		if (unlikely(frags >= MAX_SKB_FRAGS)) {
-			netdev_err(vif->dev, "Too many frags\n");
+		/* This guest is really using too many slots and
+		 * considered malicious.
+		 */
+		if (unlikely(slots >= fatal_skb_slots)) {
+			netdev_err(vif->dev,
+				   "Malicious frontend using %d slots, threshold %u\n",
+				   slots, fatal_skb_slots);
 			netbk_fatal_tx_err(vif);
 			return -E2BIG;
 		}
 
-		memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + frags),
+		/* Xen network protocol had implicit dependency on
+		 * MAX_SKB_FRAGS. XEN_NETBK_LEGACY_SLOTS_MAX is set to
+		 * the historical MAX_SKB_FRAGS value 18 to honor the
+		 * same behavior as before. Any packet using more than
+		 * 18 slots but less than fatal_skb_slots slots is
+		 * dropped
+		 */
+		if (!drop_err && slots >= XEN_NETBK_LEGACY_SLOTS_MAX) {
+			if (net_ratelimit())
+				netdev_dbg(vif->dev,
+					   "Too many slots (%d) exceeding limit (%d), dropping packet\n",
+					   slots, XEN_NETBK_LEGACY_SLOTS_MAX);
+			drop_err = -E2BIG;
+		}
+
+		if (drop_err)
+			txp = &dropped_tx;
+
+		memcpy(txp, RING_GET_REQUEST(&vif->tx, cons + slots),
 		       sizeof(*txp));
-		if (txp->size > first->size) {
-			netdev_err(vif->dev, "Frag is bigger than frame.\n");
-			netbk_fatal_tx_err(vif);
-			return -EIO;
+
+		/* If the guest submitted a frame >= 64 KiB then
+		 * first->size overflowed and following slots will
+		 * appear to be larger than the frame.
+		 *
+		 * This cannot be fatal error as there are buggy
+		 * frontends that do this.
+		 *
+		 * Consume all slots and drop the packet.
+		 */
+		if (!drop_err && txp->size > first->size) {
+			if (net_ratelimit())
+				netdev_dbg(vif->dev,
+					   "Invalid tx request, slot size %u > remaining size %u\n",
+					   txp->size, first->size);
+			drop_err = -EIO;
 		}
 
 		first->size -= txp->size;
-		frags++;
+		slots++;
 
 		if (unlikely((txp->offset + txp->size) > PAGE_SIZE)) {
-			netdev_err(vif->dev, "txp->offset: %x, size: %u\n",
+			netdev_err(vif->dev, "Cross page boundary, txp->offset: %x, size: %u\n",
 				 txp->offset, txp->size);
 			netbk_fatal_tx_err(vif);
 			return -EINVAL;
 		}
-	} while ((txp++)->flags & XEN_NETTXF_more_data);
-	return frags;
+
+		more_data = txp->flags & XEN_NETTXF_more_data;
+
+		if (!drop_err)
+			txp++;
+
+	} while (more_data);
+
+	if (drop_err) {
+		netbk_tx_err(vif, first, cons + slots);
+		return drop_err;
+	}
+
+	return slots;
 }
 
 static struct page *xen_netbk_alloc_page(struct xen_netbk *netbk,
-					 struct sk_buff *skb,
 					 u16 pending_idx)
 {
 	struct page *page;
@@ -934,48 +1024,114 @@ static struct gnttab_copy *xen_netbk_get_requests(struct xen_netbk *netbk,
 	struct skb_shared_info *shinfo = skb_shinfo(skb);
 	skb_frag_t *frags = shinfo->frags;
 	u16 pending_idx = *((u16 *)skb->data);
-	int i, start;
+	u16 head_idx = 0;
+	int slot, start;
+	struct page *page;
+	pending_ring_idx_t index, start_idx = 0;
+	uint16_t dst_offset;
+	unsigned int nr_slots;
+	struct pending_tx_info *first = NULL;
+
+	/* At this point shinfo->nr_frags is in fact the number of
+	 * slots, which can be as large as XEN_NETBK_LEGACY_SLOTS_MAX.
+	 */
+	nr_slots = shinfo->nr_frags;
 
 	/* Skip first skb fragment if it is on same page as header fragment. */
 	start = (frag_get_pending_idx(&shinfo->frags[0]) == pending_idx);
 
-	for (i = start; i < shinfo->nr_frags; i++, txp++) {
-		struct page *page;
-		pending_ring_idx_t index;
+	/* Coalesce tx requests, at this point the packet passed in
+	 * should be <= 64K. Any packets larger than 64K have been
+	 * handled in netbk_count_requests().
+	 */
+	for (shinfo->nr_frags = slot = start; slot < nr_slots;
+	     shinfo->nr_frags++) {
 		struct pending_tx_info *pending_tx_info =
 			netbk->pending_tx_info;
 
-		index = pending_index(netbk->pending_cons++);
-		pending_idx = netbk->pending_ring[index];
-		page = xen_netbk_alloc_page(netbk, skb, pending_idx);
+		page = alloc_page(GFP_KERNEL|__GFP_COLD);
 		if (!page)
 			goto err;
 
-		gop->source.u.ref = txp->gref;
-		gop->source.domid = vif->domid;
-		gop->source.offset = txp->offset;
-
-		gop->dest.u.gmfn = virt_to_mfn(page_address(page));
-		gop->dest.domid = DOMID_SELF;
-		gop->dest.offset = txp->offset;
-
-		gop->len = txp->size;
-		gop->flags = GNTCOPY_source_gref;
+		dst_offset = 0;
+		first = NULL;
+		while (dst_offset < PAGE_SIZE && slot < nr_slots) {
+			gop->flags = GNTCOPY_source_gref;
+
+			gop->source.u.ref = txp->gref;
+			gop->source.domid = vif->domid;
+			gop->source.offset = txp->offset;
+
+			gop->dest.domid = DOMID_SELF;
+
+			gop->dest.offset = dst_offset;
+			gop->dest.u.gmfn = virt_to_mfn(page_address(page));
+
+			if (dst_offset + txp->size > PAGE_SIZE) {
+				/* This page can only merge a portion
+				 * of tx request. Do not increment any
+				 * pointer / counter here. The txp
+				 * will be dealt with in future
+				 * rounds, eventually hitting the
+				 * `else` branch.
+				 */
+				gop->len = PAGE_SIZE - dst_offset;
+				txp->offset += gop->len;
+				txp->size -= gop->len;
+				dst_offset += gop->len; /* quit loop */
+			} else {
+				/* This tx request can be merged in the page */
+				gop->len = txp->size;
+				dst_offset += gop->len;
+
+				index = pending_index(netbk->pending_cons++);
+
+				pending_idx = netbk->pending_ring[index];
+
+				memcpy(&pending_tx_info[pending_idx].req, txp,
+				       sizeof(*txp));
+				xenvif_get(vif);
+
+				pending_tx_info[pending_idx].vif = vif;
+
+				/* Poison these fields, corresponding
+				 * fields for head tx req will be set
+				 * to correct values after the loop.
+				 */
+				netbk->mmap_pages[pending_idx] = (void *)(~0UL);
+				pending_tx_info[pending_idx].head =
+					INVALID_PENDING_RING_IDX;
+
+				if (!first) {
+					first = &pending_tx_info[pending_idx];
+					start_idx = index;
+					head_idx = pending_idx;
+				}
+
+				txp++;
+				slot++;
+			}
 
-		gop++;
+			gop++;
+		}
 
-		memcpy(&pending_tx_info[pending_idx].req, txp, sizeof(*txp));
-		xenvif_get(vif);
-		pending_tx_info[pending_idx].vif = vif;
-		frag_set_pending_idx(&frags[i], pending_idx);
+		first->req.offset = 0;
+		first->req.size = dst_offset;
+		first->head = start_idx;
+		set_page_ext(page, netbk, head_idx);
+		netbk->mmap_pages[head_idx] = page;
+		frag_set_pending_idx(&frags[shinfo->nr_frags], head_idx);
 	}
 
+	BUG_ON(shinfo->nr_frags > MAX_SKB_FRAGS);
+
 	return gop;
 err:
 	/* Unwind, freeing all pages and sending error responses. */
-	while (i-- > start) {
-		xen_netbk_idx_release(netbk, frag_get_pending_idx(&frags[i]),
-				      XEN_NETIF_RSP_ERROR);
+	while (shinfo->nr_frags-- > start) {
+		xen_netbk_idx_release(netbk,
+				frag_get_pending_idx(&frags[shinfo->nr_frags]),
+				XEN_NETIF_RSP_ERROR);
 	}
 	/* The head too, if necessary. */
 	if (start)
@@ -991,8 +1147,10 @@ static int xen_netbk_tx_check_gop(struct xen_netbk *netbk,
 	struct gnttab_copy *gop = *gopp;
 	u16 pending_idx = *((u16 *)skb->data);
 	struct skb_shared_info *shinfo = skb_shinfo(skb);
+	struct pending_tx_info *tx_info;
 	int nr_frags = shinfo->nr_frags;
 	int i, err, start;
+	u16 peek; /* peek into next tx request */
 
 	/* Check status of header. */
 	err = gop->status;
@@ -1004,11 +1162,20 @@ static int xen_netbk_tx_check_gop(struct xen_netbk *netbk,
 
 	for (i = start; i < nr_frags; i++) {
 		int j, newerr;
+		pending_ring_idx_t head;
 
 		pending_idx = frag_get_pending_idx(&shinfo->frags[i]);
+		tx_info = &netbk->pending_tx_info[pending_idx];
+		head = tx_info->head;
 
 		/* Check error status: if okay then remember grant handle. */
-		newerr = (++gop)->status;
+		do {
+			newerr = (++gop)->status;
+			if (newerr)
+				break;
+			peek = netbk->pending_ring[pending_index(++head)];
+		} while (!pending_tx_is_head(netbk, peek));
+
 		if (likely(!newerr)) {
 			/* Had a previous error? Invalidate this fragment. */
 			if (unlikely(err))
@@ -1233,11 +1400,12 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 	struct sk_buff *skb;
 	int ret;
 
-	while (((nr_pending_reqs(netbk) + MAX_SKB_FRAGS) < MAX_PENDING_REQS) &&
+	while ((nr_pending_reqs(netbk) + XEN_NETBK_LEGACY_SLOTS_MAX
+		< MAX_PENDING_REQS) &&
 		!list_empty(&netbk->net_schedule_list)) {
 		struct xenvif *vif;
 		struct xen_netif_tx_request txreq;
-		struct xen_netif_tx_request txfrags[MAX_SKB_FRAGS];
+		struct xen_netif_tx_request txfrags[XEN_NETBK_LEGACY_SLOTS_MAX];
 		struct page *page;
 		struct xen_netif_extra_info extras[XEN_NETIF_EXTRA_TYPE_MAX-1];
 		u16 pending_idx;
@@ -1325,7 +1493,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		pending_idx = netbk->pending_ring[index];
 
 		data_len = (txreq.size > PKT_PROT_LEN &&
-			    ret < MAX_SKB_FRAGS) ?
+			    ret < XEN_NETBK_LEGACY_SLOTS_MAX) ?
 			PKT_PROT_LEN : txreq.size;
 
 		skb = alloc_skb(data_len + NET_SKB_PAD + NET_IP_ALIGN,
@@ -1352,7 +1520,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		}
 
 		/* XXX could copy straight to head */
-		page = xen_netbk_alloc_page(netbk, skb, pending_idx);
+		page = xen_netbk_alloc_page(netbk, pending_idx);
 		if (!page) {
 			kfree_skb(skb);
 			netbk_tx_err(vif, &txreq, idx);
@@ -1375,6 +1543,7 @@ static unsigned xen_netbk_tx_build_gops(struct xen_netbk *netbk)
 		memcpy(&netbk->pending_tx_info[pending_idx].req,
 		       &txreq, sizeof(txreq));
 		netbk->pending_tx_info[pending_idx].vif = vif;
+		netbk->pending_tx_info[pending_idx].head = index;
 		*((u16 *)skb->data) = pending_idx;
 
 		__skb_put(skb, data_len);
@@ -1505,7 +1674,10 @@ static void xen_netbk_idx_release(struct xen_netbk *netbk, u16 pending_idx,
 {
 	struct xenvif *vif;
 	struct pending_tx_info *pending_tx_info;
-	pending_ring_idx_t index;
+	pending_ring_idx_t head;
+	u16 peek; /* peek into next tx request */
+
+	BUG_ON(netbk->mmap_pages[pending_idx] == (void *)(~0UL));
 
 	/* Already complete? */
 	if (netbk->mmap_pages[pending_idx] == NULL)
@@ -1514,19 +1686,40 @@ static void xen_netbk_idx_release(struct xen_netbk *netbk, u16 pending_idx,
 	pending_tx_info = &netbk->pending_tx_info[pending_idx];
 
 	vif = pending_tx_info->vif;
+	head = pending_tx_info->head;
+
+	BUG_ON(!pending_tx_is_head(netbk, head));
+	BUG_ON(netbk->pending_ring[pending_index(head)] != pending_idx);
 
-	make_tx_response(vif, &pending_tx_info->req, status);
+	do {
+		pending_ring_idx_t index;
+		pending_ring_idx_t idx = pending_index(head);
+		u16 info_idx = netbk->pending_ring[idx];
 
-	index = pending_index(netbk->pending_prod++);
-	netbk->pending_ring[index] = pending_idx;
+		pending_tx_info = &netbk->pending_tx_info[info_idx];
+		make_tx_response(vif, &pending_tx_info->req, status);
 
-	xenvif_put(vif);
+		/* Setting any number other than
+		 * INVALID_PENDING_RING_IDX indicates this slot is
+		 * starting a new packet / ending a previous packet.
+		 */
+		pending_tx_info->head = 0;
+
+		index = pending_index(netbk->pending_prod++);
+		netbk->pending_ring[index] = netbk->pending_ring[info_idx];
+
+		xenvif_put(vif);
+
+		peek = netbk->pending_ring[pending_index(++head)];
+
+	} while (!pending_tx_is_head(netbk, peek));
 
 	netbk->mmap_pages[pending_idx]->mapping = 0;
 	put_page(netbk->mmap_pages[pending_idx]);
 	netbk->mmap_pages[pending_idx] = NULL;
 }
 
+
 static void make_tx_response(struct xenvif *vif,
 			     struct xen_netif_tx_request *txp,
 			     s8       st)
@@ -1579,8 +1772,9 @@ static inline int rx_work_todo(struct xen_netbk *netbk)
 static inline int tx_work_todo(struct xen_netbk *netbk)
 {
 
-	if (((nr_pending_reqs(netbk) + MAX_SKB_FRAGS) < MAX_PENDING_REQS) &&
-			!list_empty(&netbk->net_schedule_list))
+	if ((nr_pending_reqs(netbk) + XEN_NETBK_LEGACY_SLOTS_MAX
+	     < MAX_PENDING_REQS) &&
+	     !list_empty(&netbk->net_schedule_list))
 		return 1;
 
 	return 0;
@@ -1663,6 +1857,13 @@ static int __init netback_init(void)
 	if (!xen_domain())
 		return -ENODEV;
 
+	if (fatal_skb_slots < XEN_NETBK_LEGACY_SLOTS_MAX) {
+		printk(KERN_INFO
+		       "xen-netback: fatal_skb_slots too small (%d), bump it to XEN_NETBK_LEGACY_SLOTS_MAX (%d)\n",
+		       fatal_skb_slots, XEN_NETBK_LEGACY_SLOTS_MAX);
+		fatal_skb_slots = XEN_NETBK_LEGACY_SLOTS_MAX;
+	}
+
 	xen_netbk_group_nr = num_online_cpus();
 	xen_netbk = vzalloc(sizeof(struct xen_netbk) * xen_netbk_group_nr);
 	if (!xen_netbk)
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index 650f79a..ecac034 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -36,7 +36,7 @@
 #include <linux/skbuff.h>
 #include <linux/ethtool.h>
 #include <linux/if_ether.h>
-#include <linux/tcp.h>
+#include <net/tcp.h>
 #include <linux/udp.h>
 #include <linux/moduleparam.h>
 #include <linux/mm.h>
@@ -491,6 +491,16 @@ static int xennet_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	unsigned int len = skb_headlen(skb);
 	unsigned long flags;
 
+	/* If skb->len is too big for wire format, drop skb and alert
+	 * user about misconfiguration.
+	 */
+	if (unlikely(skb->len > XEN_NETIF_MAX_TX_SIZE)) {
+		net_alert_ratelimited(
+			"xennet: skb->len = %u, too big for wire format\n",
+			skb->len);
+		goto drop;
+	}
+
 	frags += DIV_ROUND_UP(offset + len, PAGE_SIZE);
 	if (unlikely(frags > MAX_SKB_FRAGS + 1)) {
 		printk(KERN_ALERT "xennet: skb rides the rocket: %d frags\n",
@@ -1026,7 +1036,8 @@ err:
 
 static int xennet_change_mtu(struct net_device *dev, int mtu)
 {
-	int max = xennet_can_sg(dev) ? 65535 - ETH_HLEN : ETH_DATA_LEN;
+	int max = xennet_can_sg(dev) ?
+		XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER : ETH_DATA_LEN;
 
 	if (mtu > max)
 		return -EINVAL;
@@ -1330,6 +1341,8 @@ static struct net_device * __devinit xennet_create_dev(struct xenbus_device *dev
 	SET_ETHTOOL_OPS(netdev, &xennet_ethtool_ops);
 	SET_NETDEV_DEV(netdev, &dev->dev);
 
+	netif_set_gso_max_size(netdev, XEN_NETIF_MAX_TX_SIZE - MAX_TCP_HEADER);
+
 	np->netdev = netdev;
 
 	netif_carrier_off(netdev);
diff --git a/drivers/rapidio/devices/tsi721.c b/drivers/rapidio/devices/tsi721.c
index 5d44252..7fca1da 100644
--- a/drivers/rapidio/devices/tsi721.c
+++ b/drivers/rapidio/devices/tsi721.c
@@ -471,6 +471,10 @@ static irqreturn_t tsi721_irqhandler(int irq, void *ptr)
 	u32 intval;
 	u32 ch_inte;
 
+	/* For MSI mode disable all device-level interrupts */
+	if (priv->flags & TSI721_USING_MSI)
+		iowrite32(0, priv->regs + TSI721_DEV_INTE);
+
 	dev_int = ioread32(priv->regs + TSI721_DEV_INT);
 	if (!dev_int)
 		return IRQ_NONE;
@@ -560,6 +564,14 @@ static irqreturn_t tsi721_irqhandler(int irq, void *ptr)
 		}
 	}
 #endif
+
+	/* For MSI mode re-enable device-level interrupts */
+	if (priv->flags & TSI721_USING_MSI) {
+		dev_int = TSI721_DEV_INT_SR2PC_CH | TSI721_DEV_INT_SRIO |
+			TSI721_DEV_INT_SMSG_CH | TSI721_DEV_INT_BDMA_CH;
+		iowrite32(dev_int, priv->regs + TSI721_DEV_INTE);
+	}
+
 	return IRQ_HANDLED;
 }
 
diff --git a/drivers/regulator/palmas-regulator.c b/drivers/regulator/palmas-regulator.c
index 46c7e88..f9e8a2b 100644
--- a/drivers/regulator/palmas-regulator.c
+++ b/drivers/regulator/palmas-regulator.c
@@ -685,7 +685,7 @@ static __devinit int palmas_probe(struct platform_device *pdev)
 			pmic->desc[id].vsel_mask = SMPS10_VSEL;
 			pmic->desc[id].enable_reg =
 					PALMAS_BASE_TO_REG(PALMAS_SMPS_BASE,
-							PALMAS_SMPS10_STATUS);
+							PALMAS_SMPS10_CTRL);
 			pmic->desc[id].enable_mask = SMPS10_BOOST_EN;
 			pmic->desc[id].min_uV = 3750000;
 			pmic->desc[id].uV_step = 1250000;
diff --git a/drivers/rtc/rtc-twl.c b/drivers/rtc/rtc-twl.c
index 9277d94..1789a25 100644
--- a/drivers/rtc/rtc-twl.c
+++ b/drivers/rtc/rtc-twl.c
@@ -523,6 +523,7 @@ static int __devinit twl_rtc_probe(struct platform_device *pdev)
 	}
 
 	platform_set_drvdata(pdev, rtc);
+	device_init_wakeup(&pdev->dev, 1);
 	return 0;
 
 out2:
diff --git a/drivers/target/iscsi/iscsi_target_parameters.c b/drivers/target/iscsi/iscsi_target_parameters.c
index 0c4760f..3282c8f 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.c
+++ b/drivers/target/iscsi/iscsi_target_parameters.c
@@ -713,9 +713,9 @@ static int iscsi_add_notunderstood_response(
 	}
 	INIT_LIST_HEAD(&extra_response->er_list);
 
-	strncpy(extra_response->key, key, strlen(key) + 1);
-	strncpy(extra_response->value, NOTUNDERSTOOD,
-			strlen(NOTUNDERSTOOD) + 1);
+	strlcpy(extra_response->key, key, sizeof(extra_response->key));
+	strlcpy(extra_response->value, NOTUNDERSTOOD,
+		sizeof(extra_response->value));
 
 	list_add_tail(&extra_response->er_list,
 			&param_list->extra_response_list);
@@ -1554,8 +1554,6 @@ int iscsi_decode_text_input(
 
 		if (phase & PHASE_SECURITY) {
 			if (iscsi_check_for_auth_key(key) > 0) {
-				char *tmpptr = key + strlen(key);
-				*tmpptr = '=';
 				kfree(tmpbuf);
 				return 1;
 			}
diff --git a/drivers/target/iscsi/iscsi_target_parameters.h b/drivers/target/iscsi/iscsi_target_parameters.h
index 6a37fd6..83eed65 100644
--- a/drivers/target/iscsi/iscsi_target_parameters.h
+++ b/drivers/target/iscsi/iscsi_target_parameters.h
@@ -1,8 +1,10 @@
 #ifndef ISCSI_PARAMETERS_H
 #define ISCSI_PARAMETERS_H
 
+#include <scsi/iscsi_proto.h>
+
 struct iscsi_extra_response {
-	char key[64];
+	char key[KEY_MAXLEN];
 	char value[32];
 	struct list_head er_list;
 } ____cacheline_aligned;
diff --git a/drivers/target/target_core_transport.c b/drivers/target/target_core_transport.c
index 140bfb3..725ab56 100644
--- a/drivers/target/target_core_transport.c
+++ b/drivers/target/target_core_transport.c
@@ -232,6 +232,7 @@ struct se_session *transport_init_session(void)
 	INIT_LIST_HEAD(&se_sess->sess_list);
 	INIT_LIST_HEAD(&se_sess->sess_acl_list);
 	INIT_LIST_HEAD(&se_sess->sess_cmd_list);
+	INIT_LIST_HEAD(&se_sess->sess_wait_list);
 	spin_lock_init(&se_sess->sess_cmd_lock);
 	kref_init(&se_sess->sess_kref);
 
@@ -2469,11 +2470,14 @@ void target_sess_cmd_list_set_waiting(struct se_session *se_sess)
 	unsigned long flags;
 
 	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
-
-	WARN_ON(se_sess->sess_tearing_down);
+	if (se_sess->sess_tearing_down) {
+		spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+		return;
+	}
 	se_sess->sess_tearing_down = 1;
+	list_splice_init(&se_sess->sess_cmd_list, &se_sess->sess_wait_list);
 
-	list_for_each_entry(se_cmd, &se_sess->sess_cmd_list, se_cmd_list)
+	list_for_each_entry(se_cmd, &se_sess->sess_wait_list, se_cmd_list)
 		se_cmd->cmd_wait_set = 1;
 
 	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
@@ -2490,9 +2494,10 @@ void target_wait_for_sess_cmds(
 {
 	struct se_cmd *se_cmd, *tmp_cmd;
 	bool rc = false;
+	unsigned long flags;
 
 	list_for_each_entry_safe(se_cmd, tmp_cmd,
-				&se_sess->sess_cmd_list, se_cmd_list) {
+				&se_sess->sess_wait_list, se_cmd_list) {
 		list_del(&se_cmd->se_cmd_list);
 
 		pr_debug("Waiting for se_cmd: %p t_state: %d, fabric state:"
@@ -2520,6 +2525,11 @@ void target_wait_for_sess_cmds(
 
 		se_cmd->se_tfo->release_cmd(se_cmd);
 	}
+
+	spin_lock_irqsave(&se_sess->sess_cmd_lock, flags);
+	WARN_ON(!list_empty(&se_sess->sess_cmd_list));
+	spin_unlock_irqrestore(&se_sess->sess_cmd_lock, flags);
+
 }
 EXPORT_SYMBOL(target_wait_for_sess_cmds);
 
diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 26f0d0e..72d3ff8 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -1529,6 +1529,14 @@ static void n_tty_set_termios(struct tty_struct *tty, struct ktermios *old)
 			tty->real_raw = 0;
 	}
 	n_tty_set_room(tty);
+	/*
+	 * Fix tty hang when I_IXON(tty) is cleared, but the tty
+	 * been stopped by STOP_CHAR(tty) before it.
+	 */
+	if (!I_IXON(tty) && old && (old->c_iflag & IXON) && !tty->flow_stopped) {
+		start_tty(tty);
+	}
+
 	/* The termios change make the tty ready for I/O */
 	wake_up_interruptible(&tty->write_wait);
 	wake_up_interruptible(&tty->read_wait);
diff --git a/drivers/usb/atm/cxacru.c b/drivers/usb/atm/cxacru.c
index b7eb86a..8a7eb77 100644
--- a/drivers/usb/atm/cxacru.c
+++ b/drivers/usb/atm/cxacru.c
@@ -686,7 +686,8 @@ static int cxacru_cm_get_array(struct cxacru_data *instance, enum cxacru_cm_requ
 {
 	int ret, len;
 	__le32 *buf;
-	int offb, offd;
+	int offb;
+	unsigned int offd;
 	const int stride = CMD_PACKET_SIZE / (4 * 2) - 1;
 	int buflen =  ((size - 1) / stride + 1 + size * 2) * 4;
 
diff --git a/drivers/usb/core/quirks.c b/drivers/usb/core/quirks.c
index e77a8e8..6af23f2 100644
--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -85,6 +85,9 @@ static const struct usb_device_id usb_quirk_list[] = {
 	/* Edirol SD-20 */
 	{ USB_DEVICE(0x0582, 0x0027), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Alcor Micro Corp. Hub */
+	{ USB_DEVICE(0x058f, 0x9254), .driver_info = USB_QUIRK_RESET_RESUME },
+
 	/* appletouch */
 	{ USB_DEVICE(0x05ac, 0x021a), .driver_info = USB_QUIRK_RESET_RESUME },
 
diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index eb0fd10..8212dbb 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1650,10 +1650,21 @@ static void dwc3_gadget_free_endpoints(struct dwc3 *dwc)
 
 	for (epnum = 0; epnum < DWC3_ENDPOINTS_NUM; epnum++) {
 		dep = dwc->eps[epnum];
-		dwc3_free_trb_pool(dep);
-
-		if (epnum != 0 && epnum != 1)
+		if (!dep)
+			continue;
+		/*
+		 * Physical endpoints 0 and 1 are special; they form the
+		 * bi-directional USB endpoint 0.
+		 *
+		 * For those two physical endpoints, we don't allocate a TRB
+		 * pool nor do we add them the endpoints list. Due to that, we
+		 * shouldn't do these two operations otherwise we would end up
+		 * with all sorts of bugs when removing dwc3.ko.
+		 */
+		if (epnum != 0 && epnum != 1) {
+			dwc3_free_trb_pool(dep);
 			list_del(&dep->endpoint.ep_list);
+		}
 
 		kfree(dep);
 	}
diff --git a/drivers/usb/host/uhci-hub.c b/drivers/usb/host/uhci-hub.c
index 768d542..c994655 100644
--- a/drivers/usb/host/uhci-hub.c
+++ b/drivers/usb/host/uhci-hub.c
@@ -222,7 +222,8 @@ static int uhci_hub_status_data(struct usb_hcd *hcd, char *buf)
 		/* auto-stop if nothing connected for 1 second */
 		if (any_ports_active(uhci))
 			uhci->rh_state = UHCI_RH_RUNNING;
-		else if (time_after_eq(jiffies, uhci->auto_stop_time))
+		else if (time_after_eq(jiffies, uhci->auto_stop_time) &&
+				!uhci->wait_for_hp)
 			suspend_rh(uhci, UHCI_RH_AUTO_STOPPED);
 		break;
 
diff --git a/drivers/usb/host/xhci-mem.c b/drivers/usb/host/xhci-mem.c
index 487bc08..419d34a 100644
--- a/drivers/usb/host/xhci-mem.c
+++ b/drivers/usb/host/xhci-mem.c
@@ -1436,15 +1436,17 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 	ep_ctx->ep_info2 |= cpu_to_le32(xhci_get_endpoint_type(udev, ep));
 
 	/* Set the max packet size and max burst */
+	max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
+	max_burst = 0;
 	switch (udev->speed) {
 	case USB_SPEED_SUPER:
-		max_packet = usb_endpoint_maxp(&ep->desc);
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		/* dig out max burst from ep companion desc */
-		max_packet = ep->ss_ep_comp.bMaxBurst;
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_packet));
+		max_burst = ep->ss_ep_comp.bMaxBurst;
 		break;
 	case USB_SPEED_HIGH:
+		/* Some devices get this wrong */
+		if (usb_endpoint_xfer_bulk(&ep->desc))
+			max_packet = 512;
 		/* bits 11:12 specify the number of additional transaction
 		 * opportunities per microframe (USB 2.0, section 9.6.6)
 		 */
@@ -1452,17 +1454,16 @@ int xhci_endpoint_init(struct xhci_hcd *xhci,
 				usb_endpoint_xfer_int(&ep->desc)) {
 			max_burst = (usb_endpoint_maxp(&ep->desc)
 				     & 0x1800) >> 11;
-			ep_ctx->ep_info2 |= cpu_to_le32(MAX_BURST(max_burst));
 		}
-		/* Fall through */
+		break;
 	case USB_SPEED_FULL:
 	case USB_SPEED_LOW:
-		max_packet = GET_MAX_PACKET(usb_endpoint_maxp(&ep->desc));
-		ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet));
 		break;
 	default:
 		BUG();
 	}
+	ep_ctx->ep_info2 |= cpu_to_le32(MAX_PACKET(max_packet) |
+			MAX_BURST(max_burst));
 	max_esit_payload = xhci_get_max_esit_payload(xhci, udev, ep);
 	ep_ctx->tx_info = cpu_to_le32(MAX_ESIT_PAYLOAD_FOR_EP(max_esit_payload));
 
@@ -1839,6 +1840,9 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 	}
 	spin_unlock_irqrestore(&xhci->lock, flags);
 
+	if (!xhci->rh_bw)
+		goto no_bw;
+
 	num_ports = HCS_MAX_PORTS(xhci->hcs_params1);
 	for (i = 0; i < num_ports; i++) {
 		struct xhci_interval_bw_table *bwt = &xhci->rh_bw[i].bw_table;
@@ -1857,6 +1861,7 @@ void xhci_mem_cleanup(struct xhci_hcd *xhci)
 		}
 	}
 
+no_bw:
 	xhci->num_usb2_ports = 0;
 	xhci->num_usb3_ports = 0;
 	xhci->num_active_eps = 0;
@@ -2268,6 +2273,9 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	u32 page_size, temp;
 	int i;
 
+	INIT_LIST_HEAD(&xhci->lpm_failed_devs);
+	INIT_LIST_HEAD(&xhci->cancel_cmd_list);
+
 	page_size = xhci_readl(xhci, &xhci->op_regs->page_size);
 	xhci_dbg(xhci, "Supported page size register = 0x%x\n", page_size);
 	for (i = 0; i < 16; i++) {
@@ -2346,7 +2354,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	xhci->cmd_ring = xhci_ring_alloc(xhci, 1, 1, TYPE_COMMAND, flags);
 	if (!xhci->cmd_ring)
 		goto fail;
-	INIT_LIST_HEAD(&xhci->cancel_cmd_list);
 	xhci_dbg(xhci, "Allocated command ring at %p\n", xhci->cmd_ring);
 	xhci_dbg(xhci, "First segment DMA is 0x%llx\n",
 			(unsigned long long)xhci->cmd_ring->first_seg->dma);
@@ -2457,8 +2464,6 @@ int xhci_mem_init(struct xhci_hcd *xhci, gfp_t flags)
 	if (xhci_setup_port_arrays(xhci, flags))
 		goto fail;
 
-	INIT_LIST_HEAD(&xhci->lpm_failed_devs);
-
 	/* Enable USB 3.0 device notifications for function remote wake, which
 	 * is necessary for allowing USB 3.0 devices to do remote wakeup from
 	 * U3 (device suspend).
diff --git a/drivers/usb/host/xhci-pci.c b/drivers/usb/host/xhci-pci.c
index dcb72f7..cd0fc48 100644
--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -221,12 +221,22 @@ static void xhci_pci_remove(struct pci_dev *dev)
 static int xhci_pci_suspend(struct usb_hcd *hcd, bool do_wakeup)
 {
 	struct xhci_hcd	*xhci = hcd_to_xhci(hcd);
+	struct pci_dev		*pdev;
 	int	retval = 0;
 
 	if (hcd->state != HC_STATE_SUSPENDED ||
 			xhci->shared_hcd->state != HC_STATE_SUSPENDED)
 		return -EINVAL;
 
+	pdev = to_pci_dev(hcd->self.controller);
+
+	/*
+	 * Systems with the TI redriver that loses port status change events
+	 * need to have the registers polled during D3, so avoid D3cold.
+	 */
+	if (xhci_compliance_mode_recovery_timer_quirk_check())
+		pdev->no_d3cold = true;
+
 	retval = xhci_suspend(xhci);
 
 	return retval;
diff --git a/drivers/usb/host/xhci.c b/drivers/usb/host/xhci.c
index fd36acd..2c117ec 100644
--- a/drivers/usb/host/xhci.c
+++ b/drivers/usb/host/xhci.c
@@ -466,7 +466,7 @@ static void compliance_mode_recovery_timer_init(struct xhci_hcd *xhci)
  * Systems:
  * Vendor: Hewlett-Packard -> System Models: Z420, Z620 and Z820
  */
-static bool compliance_mode_recovery_timer_quirk_check(void)
+bool xhci_compliance_mode_recovery_timer_quirk_check(void)
 {
 	const char *dmi_product_name, *dmi_sys_vendor;
 
@@ -517,7 +517,7 @@ int xhci_init(struct usb_hcd *hcd)
 	xhci_dbg(xhci, "Finished xhci_init\n");
 
 	/* Initializing Compliance Mode Recovery Data If Needed */
-	if (compliance_mode_recovery_timer_quirk_check()) {
+	if (xhci_compliance_mode_recovery_timer_quirk_check()) {
 		xhci->quirks |= XHCI_COMP_MODE_QUIRK;
 		compliance_mode_recovery_timer_init(xhci);
 	}
@@ -942,6 +942,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	struct usb_hcd		*hcd = xhci_to_hcd(xhci);
 	struct usb_hcd		*secondary_hcd;
 	int			retval = 0;
+	bool			comp_timer_running = false;
 
 	/* Wait a bit if either of the roothubs need to settle from the
 	 * transition into bus suspend.
@@ -979,6 +980,13 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 
 	/* If restore operation fails, re-initialize the HC during resume */
 	if ((temp & STS_SRE) || hibernated) {
+
+		if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) &&
+				!(xhci_all_ports_seen_u0(xhci))) {
+			del_timer_sync(&xhci->comp_mode_recovery_timer);
+			xhci_dbg(xhci, "Compliance Mode Recovery Timer deleted!\n");
+		}
+
 		/* Let the USB core know _both_ roothubs lost power. */
 		usb_root_hub_lost_power(xhci->main_hcd->self.root_hub);
 		usb_root_hub_lost_power(xhci->shared_hcd->self.root_hub);
@@ -1021,6 +1029,8 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 		retval = xhci_init(hcd->primary_hcd);
 		if (retval)
 			return retval;
+		comp_timer_running = true;
+
 		xhci_dbg(xhci, "Start the primary HCD\n");
 		retval = xhci_run(hcd->primary_hcd);
 		if (!retval) {
@@ -1062,7 +1072,7 @@ int xhci_resume(struct xhci_hcd *xhci, bool hibernated)
 	 * to suffer the Compliance Mode issue again. It doesn't matter if
 	 * ports have entered previously to U0 before system's suspension.
 	 */
-	if (xhci->quirks & XHCI_COMP_MODE_QUIRK)
+	if ((xhci->quirks & XHCI_COMP_MODE_QUIRK) && !comp_timer_running)
 		compliance_mode_recovery_timer_init(xhci);
 
 	return retval;
diff --git a/drivers/usb/host/xhci.h b/drivers/usb/host/xhci.h
index 212d408..f056e9f 100644
--- a/drivers/usb/host/xhci.h
+++ b/drivers/usb/host/xhci.h
@@ -1852,4 +1852,7 @@ struct xhci_input_control_ctx *xhci_get_input_control_ctx(struct xhci_hcd *xhci,
 struct xhci_slot_ctx *xhci_get_slot_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx);
 struct xhci_ep_ctx *xhci_get_ep_ctx(struct xhci_hcd *xhci, struct xhci_container_ctx *ctx, unsigned int ep_index);
 
+/* xHCI quirks */
+bool xhci_compliance_mode_recovery_timer_quirk_check(void);
+
 #endif /* __LINUX_XHCI_HCD_H */
diff --git a/drivers/usb/serial/ark3116.c b/drivers/usb/serial/ark3116.c
index 5f9eaaf..415c23f 100644
--- a/drivers/usb/serial/ark3116.c
+++ b/drivers/usb/serial/ark3116.c
@@ -49,7 +49,7 @@ static bool debug;
 #define DRIVER_NAME "ark3116"
 
 /* usb timeout of 1 second */
-#define ARK_TIMEOUT (1*HZ)
+#define ARK_TIMEOUT 1000
 
 static const struct usb_device_id id_table[] = {
 	{ USB_DEVICE(0x6547, 0x0232) },
diff --git a/drivers/usb/serial/cypress_m8.c b/drivers/usb/serial/cypress_m8.c
index 61de7e1..d7a16ba 100644
--- a/drivers/usb/serial/cypress_m8.c
+++ b/drivers/usb/serial/cypress_m8.c
@@ -70,6 +70,7 @@ static const struct usb_device_id id_table_earthmate[] = {
 static const struct usb_device_id id_table_cyphidcomrs232[] = {
 	{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
 	{ USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) },
+	{ USB_DEVICE(VENDOR_ID_FRWD, PRODUCT_ID_CYPHIDCOM_FRWD) },
 	{ }						/* Terminating entry */
 };
 
@@ -83,6 +84,7 @@ static const struct usb_device_id id_table_combined[] = {
 	{ USB_DEVICE(VENDOR_ID_DELORME, PRODUCT_ID_EARTHMATEUSB_LT20) },
 	{ USB_DEVICE(VENDOR_ID_CYPRESS, PRODUCT_ID_CYPHIDCOM) },
 	{ USB_DEVICE(VENDOR_ID_POWERCOM, PRODUCT_ID_UPS) },
+	{ USB_DEVICE(VENDOR_ID_FRWD, PRODUCT_ID_CYPHIDCOM_FRWD) },
 	{ USB_DEVICE(VENDOR_ID_DAZZLE, PRODUCT_ID_CA42) },
 	{ }						/* Terminating entry */
 };
@@ -235,6 +237,12 @@ static struct usb_serial_driver * const serial_drivers[] = {
  * Cypress serial helper functions
  *****************************************************************************/
 
+/* FRWD Dongle hidcom needs to skip reset and speed checks */
+static inline bool is_frwd(struct usb_device *dev)
+{
+	return ((le16_to_cpu(dev->descriptor.idVendor) == VENDOR_ID_FRWD) &&
+		(le16_to_cpu(dev->descriptor.idProduct) == PRODUCT_ID_CYPHIDCOM_FRWD));
+}
 
 static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 {
@@ -244,6 +252,10 @@ static int analyze_baud_rate(struct usb_serial_port *port, speed_t new_rate)
 	if (unstable_bauds)
 		return new_rate;
 
+	/* FRWD Dongle uses 115200 bps */
+	if (is_frwd(port->serial->dev))
+		return new_rate;
+
 	/*
 	 * The general purpose firmware for the Cypress M8 allows for
 	 * a maximum speed of 57600bps (I have no idea whether DeLorme
@@ -452,7 +464,11 @@ static int cypress_generic_port_probe(struct usb_serial_port *port)
 		return -ENOMEM;
 	}
 
-	usb_reset_configuration(serial->dev);
+	/* Skip reset for FRWD device. It is a workaound:
+	   device hangs if it receives SET_CONFIGURE in Configured
+	   state. */
+	if (!is_frwd(serial->dev))
+		usb_reset_configuration(serial->dev);
 
 	priv->cmd_ctrl = 0;
 	priv->line_control = 0;
diff --git a/drivers/usb/serial/cypress_m8.h b/drivers/usb/serial/cypress_m8.h
index 67cf608..b461311 100644
--- a/drivers/usb/serial/cypress_m8.h
+++ b/drivers/usb/serial/cypress_m8.h
@@ -24,6 +24,10 @@
 #define VENDOR_ID_CYPRESS		0x04b4
 #define PRODUCT_ID_CYPHIDCOM		0x5500
 
+/* FRWD Dongle - a GPS sports watch */
+#define VENDOR_ID_FRWD			0x6737
+#define PRODUCT_ID_CYPHIDCOM_FRWD	0x0001
+
 /* Powercom UPS, chip CY7C63723 */
 #define VENDOR_ID_POWERCOM		0x0d9f
 #define PRODUCT_ID_UPS			0x0002
diff --git a/drivers/usb/serial/ftdi_sio.c b/drivers/usb/serial/ftdi_sio.c
index 5843cc8..5c3e249 100644
--- a/drivers/usb/serial/ftdi_sio.c
+++ b/drivers/usb/serial/ftdi_sio.c
@@ -197,6 +197,8 @@ static struct usb_device_id id_table_combined [] = {
 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_OPENDCC_GBM_BOOST_PID) },
 	{ USB_DEVICE(NEWPORT_VID, NEWPORT_AGILIS_PID) },
+	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_CC_PID) },
+	{ USB_DEVICE(NEWPORT_VID, NEWPORT_CONEX_AGP_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_IOBOARD_PID) },
 	{ USB_DEVICE(INTERBIOMETRICS_VID, INTERBIOMETRICS_MINI_IOBOARD_PID) },
 	{ USB_DEVICE(FTDI_VID, FTDI_SPROG_II) },
diff --git a/drivers/usb/serial/ftdi_sio_ids.h b/drivers/usb/serial/ftdi_sio_ids.h
index 5c84306..1e4bff5 100644
--- a/drivers/usb/serial/ftdi_sio_ids.h
+++ b/drivers/usb/serial/ftdi_sio_ids.h
@@ -765,6 +765,8 @@
  */
 #define NEWPORT_VID			0x104D
 #define NEWPORT_AGILIS_PID		0x3000
+#define NEWPORT_CONEX_CC_PID		0x3002
+#define NEWPORT_CONEX_AGP_PID		0x3006
 
 /* Interbiometrics USB I/O Board */
 /* Developed for Interbiometrics by Rudolf Gugler */
diff --git a/drivers/usb/serial/generic.c b/drivers/usb/serial/generic.c
index 9b026bf..3b59dd8 100644
--- a/drivers/usb/serial/generic.c
+++ b/drivers/usb/serial/generic.c
@@ -267,6 +267,37 @@ int usb_serial_generic_chars_in_buffer(struct tty_struct *tty)
 	return chars;
 }
 
+void usb_serial_generic_wait_until_sent(struct tty_struct *tty, long timeout)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	unsigned int bps;
+	unsigned long period;
+	unsigned long expire;
+
+	bps = tty_get_baud_rate(tty);
+	if (!bps)
+		bps = 9600;	/* B0 */
+	/*
+	 * Use a poll-period of roughly the time it takes to send one
+	 * character or at least one jiffy.
+	 */
+	period = max_t(unsigned long, (10 * HZ / bps), 1);
+	period = min_t(unsigned long, period, timeout);
+
+	dev_dbg(&port->dev, "%s - timeout = %u ms, period = %u ms\n",
+					__func__, jiffies_to_msecs(timeout),
+					jiffies_to_msecs(period));
+	expire = jiffies + timeout;
+	while (!port->serial->type->tx_empty(port)) {
+		schedule_timeout_interruptible(period);
+		if (signal_pending(current))
+			break;
+		if (time_after(jiffies, expire))
+			break;
+	}
+}
+EXPORT_SYMBOL_GPL(usb_serial_generic_wait_until_sent);
+
 static int usb_serial_generic_submit_read_urb(struct usb_serial_port *port,
 						int index, gfp_t mem_flags)
 {
diff --git a/drivers/usb/serial/io_ti.c b/drivers/usb/serial/io_ti.c
index d2b6008..93cf729 100644
--- a/drivers/usb/serial/io_ti.c
+++ b/drivers/usb/serial/io_ti.c
@@ -2163,6 +2163,18 @@ static int edge_chars_in_buffer(struct tty_struct *tty)
 	return chars;
 }
 
+static bool edge_tx_empty(struct usb_serial_port *port)
+{
+	struct edgeport_port *edge_port = usb_get_serial_port_data(port);
+	int ret;
+
+	ret = tx_active(edge_port);
+	if (ret > 0)
+		return false;
+
+	return true;
+}
+
 static void edge_throttle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
@@ -2739,6 +2751,7 @@ static struct usb_serial_driver edgeport_1port_device = {
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,
+	.tx_empty		= edge_tx_empty,
 	.break_ctl		= edge_break,
 	.read_int_callback	= edge_interrupt_callback,
 	.read_bulk_callback	= edge_bulk_in_callback,
@@ -2770,6 +2783,7 @@ static struct usb_serial_driver edgeport_2port_device = {
 	.write			= edge_write,
 	.write_room		= edge_write_room,
 	.chars_in_buffer	= edge_chars_in_buffer,
+	.tx_empty		= edge_tx_empty,
 	.break_ctl		= edge_break,
 	.read_int_callback	= edge_interrupt_callback,
 	.read_bulk_callback	= edge_bulk_in_callback,
diff --git a/drivers/usb/serial/iuu_phoenix.c b/drivers/usb/serial/iuu_phoenix.c
index 8d3692b..ae30f2c 100644
--- a/drivers/usb/serial/iuu_phoenix.c
+++ b/drivers/usb/serial/iuu_phoenix.c
@@ -311,7 +311,7 @@ static int bulk_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 	    usb_bulk_msg(serial->dev,
 			 usb_sndbulkpipe(serial->dev,
 					 port->bulk_out_endpointAddress), buf,
-			 count, &actual, HZ * 1);
+			 count, &actual, 1000);
 
 	if (status != IUU_OPERATION_OK)
 		dbg("%s - error = %2x", __func__, status);
@@ -331,7 +331,7 @@ static int read_immediate(struct usb_serial_port *port, u8 *buf, u8 count)
 	    usb_bulk_msg(serial->dev,
 			 usb_rcvbulkpipe(serial->dev,
 					 port->bulk_in_endpointAddress), buf,
-			 count, &actual, HZ * 1);
+			 count, &actual, 1000);
 
 	if (status != IUU_OPERATION_OK)
 		dbg("%s - error = %2x", __func__, status);
diff --git a/drivers/usb/serial/keyspan.c b/drivers/usb/serial/keyspan.c
index 059d44b..caf85ab 100644
--- a/drivers/usb/serial/keyspan.c
+++ b/drivers/usb/serial/keyspan.c
@@ -1622,7 +1622,7 @@ static int keyspan_usa26_send_setup(struct usb_serial *serial,
 	d_details = s_priv->device_details;
 	device_port = port->number - port->serial->minor;
 
-	outcont_urb = d_details->outcont_endpoints[port->number];
+	outcont_urb = d_details->outcont_endpoints[device_port];
 	this_urb = p_priv->outcont_urb;
 
 	dbg("%s - endpoint %d", __func__, usb_pipeendpoint(this_urb->pipe));
diff --git a/drivers/usb/serial/mos7720.c b/drivers/usb/serial/mos7720.c
index eb84767..b691404 100644
--- a/drivers/usb/serial/mos7720.c
+++ b/drivers/usb/serial/mos7720.c
@@ -44,7 +44,7 @@
 #define DRIVER_DESC "Moschip USB Serial Driver"
 
 /* default urb timeout */
-#define MOS_WDR_TIMEOUT	(HZ * 5)
+#define MOS_WDR_TIMEOUT	5000
 
 #define MOS_MAX_PORT	0x02
 #define MOS_WRITE	0x0E
@@ -234,11 +234,22 @@ static int read_mos_reg(struct usb_serial *serial, unsigned int serial_portnum,
 	__u8 requesttype = (__u8)0xc0;
 	__u16 index = get_reg_index(reg);
 	__u16 value = get_reg_value(reg, serial_portnum);
-	int status = usb_control_msg(usbdev, pipe, request, requesttype, value,
-				     index, data, 1, MOS_WDR_TIMEOUT);
-	if (status < 0)
+	u8 *buf;
+	int status;
+
+	buf = kmalloc(1, GFP_KERNEL);
+	if (!buf)
+		return -ENOMEM;
+
+	status = usb_control_msg(usbdev, pipe, request, requesttype, value,
+				     index, buf, 1, MOS_WDR_TIMEOUT);
+	if (status == 1)
+		*data = *buf;
+	else if (status < 0)
 		dev_err(&usbdev->dev,
 			"mos7720: usb_control_msg() failed: %d", status);
+	kfree(buf);
+
 	return status;
 }
 
@@ -1684,7 +1695,7 @@ static void change_port_settings(struct tty_struct *tty,
 		mos7720_port->shadowMCR |= (UART_MCR_XONANY);
 		/* To set hardware flow control to the specified *
 		 * serial port, in SP1/2_CONTROL_REG             */
-		if (port->number)
+		if (port_number)
 			write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x01);
 		else
 			write_mos_reg(serial, dummy, SP_CONTROL_REG, 0x02);
@@ -2063,7 +2074,7 @@ static int mos7720_startup(struct usb_serial *serial)
 
 	/* setting configuration feature to one */
 	usb_control_msg(serial->dev, usb_sndctrlpipe(serial->dev, 0),
-			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5*HZ);
+			(__u8)0x03, 0x00, 0x01, 0x00, NULL, 0x00, 5000);
 
 	/* start the interrupt urb */
 	ret_val = usb_submit_urb(serial->port[0]->interrupt_in_urb, GFP_KERNEL);
@@ -2106,7 +2117,7 @@ static void mos7720_release(struct usb_serial *serial)
 		/* wait for synchronous usb calls to return */
 		if (mos_parport->msg_pending)
 			wait_for_completion_timeout(&mos_parport->syncmsg_compl,
-						    MOS_WDR_TIMEOUT);
+					    msecs_to_jiffies(MOS_WDR_TIMEOUT));
 
 		parport_remove_port(mos_parport->pp);
 		usb_set_serial_data(serial, NULL);
diff --git a/drivers/usb/serial/mos7840.c b/drivers/usb/serial/mos7840.c
index 8654df0..3193d25 100644
--- a/drivers/usb/serial/mos7840.c
+++ b/drivers/usb/serial/mos7840.c
@@ -2341,13 +2341,21 @@ static int mos7840_ioctl(struct tty_struct *tty,
 static int mos7810_check(struct usb_serial *serial)
 {
 	int i, pass_count = 0;
+	u8 *buf;
 	__u16 data = 0, mcr_data = 0;
 	__u16 test_pattern = 0x55AA;
+	int res;
+
+	buf = kmalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+	if (!buf)
+		return 0;	/* failed to identify 7810 */
 
 	/* Store MCR setting */
-	usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+	res = usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
 		MCS_RDREQ, MCS_RD_RTYPE, 0x0300, MODEM_CONTROL_REGISTER,
-		&mcr_data, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		buf, VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+	if (res == VENDOR_READ_LENGTH)
+		mcr_data = *buf;
 
 	for (i = 0; i < 16; i++) {
 		/* Send the 1-bit test pattern out to MCS7810 test pin */
@@ -2357,9 +2365,12 @@ static int mos7810_check(struct usb_serial *serial)
 			MODEM_CONTROL_REGISTER, NULL, 0, MOS_WDR_TIMEOUT);
 
 		/* Read the test pattern back */
-		usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
-			MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &data,
-			VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		res = usb_control_msg(serial->dev,
+				usb_rcvctrlpipe(serial->dev, 0), MCS_RDREQ,
+				MCS_RD_RTYPE, 0, GPIO_REGISTER, buf,
+				VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		if (res == VENDOR_READ_LENGTH)
+			data = *buf;
 
 		/* If this is a MCS7810 device, both test patterns must match */
 		if (((test_pattern >> i) ^ (~data >> 1)) & 0x0001)
@@ -2373,6 +2384,8 @@ static int mos7810_check(struct usb_serial *serial)
 		MCS_WR_RTYPE, 0x0300 | mcr_data, MODEM_CONTROL_REGISTER, NULL,
 		0, MOS_WDR_TIMEOUT);
 
+	kfree(buf);
+
 	if (pass_count == 16)
 		return 1;
 
@@ -2382,11 +2395,17 @@ static int mos7810_check(struct usb_serial *serial)
 static int mos7840_calc_num_ports(struct usb_serial *serial)
 {
 	__u16 data = 0x00;
+	u8 *buf;
 	int mos7840_num_ports;
 
-	usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
-		MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, &data,
-		VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+	buf = kzalloc(VENDOR_READ_LENGTH, GFP_KERNEL);
+	if (buf) {
+		usb_control_msg(serial->dev, usb_rcvctrlpipe(serial->dev, 0),
+			MCS_RDREQ, MCS_RD_RTYPE, 0, GPIO_REGISTER, buf,
+			VENDOR_READ_LENGTH, MOS_WDR_TIMEOUT);
+		data = *buf;
+		kfree(buf);
+	}
 
 	if (serial->dev->descriptor.idProduct == MOSCHIP_DEVICE_ID_7810 ||
 		serial->dev->descriptor.idProduct == MOSCHIP_DEVICE_ID_7820) {
diff --git a/drivers/usb/serial/option.c b/drivers/usb/serial/option.c
index 1689782..27adfce 100644
--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -197,6 +197,7 @@ static void option_instat_callback(struct urb *urb);
 
 #define DELL_PRODUCT_5800_MINICARD_VZW		0x8195  /* Novatel E362 */
 #define DELL_PRODUCT_5800_V2_MINICARD_VZW	0x8196  /* Novatel E362 */
+#define DELL_PRODUCT_5804_MINICARD_ATT		0x819b  /* Novatel E371 */
 
 #define KYOCERA_VENDOR_ID			0x0c88
 #define KYOCERA_PRODUCT_KPC650			0x17da
@@ -340,6 +341,8 @@ static void option_instat_callback(struct urb *urb);
 #define CINTERION_PRODUCT_EU3_E			0x0051
 #define CINTERION_PRODUCT_EU3_P			0x0052
 #define CINTERION_PRODUCT_PH8			0x0053
+#define CINTERION_PRODUCT_AHXX			0x0055
+#define CINTERION_PRODUCT_PLXX			0x0060
 
 /* Olivetti products */
 #define OLIVETTI_VENDOR_ID			0x0b3c
@@ -561,6 +564,8 @@ static const struct usb_device_id option_ids[] = {
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K3765, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
+	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0x14ac, 0xff, 0xff, 0xff),	/* Huawei E1820 */
+		.driver_info = (kernel_ulong_t) &net_intf1_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, HUAWEI_PRODUCT_K4605, 0xff, 0xff, 0xff),
 		.driver_info = (kernel_ulong_t) &huawei_cdc12_blacklist },
 	{ USB_VENDOR_AND_INTERFACE_INFO(HUAWEI_VENDOR_ID, 0xff, 0xff, 0xff) },
@@ -740,6 +745,7 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(DELL_VENDOR_ID, DELL_PRODUCT_5730_MINICARD_VZW) }, 	/* Dell Wireless 5730 Mobile Broadband EVDO/HSPA Mini-Card */
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_MINICARD_VZW, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5800_V2_MINICARD_VZW, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(DELL_VENDOR_ID, DELL_PRODUCT_5804_MINICARD_ATT, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_E100A) },	/* ADU-E100, ADU-310 */
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_500A) },
 	{ USB_DEVICE(ANYDATA_VENDOR_ID, ANYDATA_PRODUCT_ADU_620UW) },
@@ -931,6 +937,8 @@ static const struct usb_device_id option_ids[] = {
 	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0330, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0395, 0xff, 0xff, 0xff) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0412, 0xff, 0xff, 0xff), /* Telewell TW-LTE 4G */
+	  .driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0414, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x0417, 0xff, 0xff, 0xff) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(ZTE_VENDOR_ID, 0x1008, 0xff, 0xff, 0xff),
@@ -1220,6 +1228,9 @@ static const struct usb_device_id option_ids[] = {
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_E) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_EU3_P) },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PH8) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_AHXX) },
+	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_PLXX),
+		.driver_info = (kernel_ulong_t)&net_intf4_blacklist },
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDM) }, 
 	{ USB_DEVICE(CINTERION_VENDOR_ID, CINTERION_PRODUCT_HC28_MDMNET) },
 	{ USB_DEVICE(SIEMENS_VENDOR_ID, CINTERION_PRODUCT_HC25_MDM) },
diff --git a/drivers/usb/serial/pl2303.c b/drivers/usb/serial/pl2303.c
index bf39f1b..058ab8e 100644
--- a/drivers/usb/serial/pl2303.c
+++ b/drivers/usb/serial/pl2303.c
@@ -285,7 +285,7 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	   serial settings even to the same values as before. Thus
 	   we actually need to filter in this specific case */
 
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (old_termios && !tty_termios_hw_change(tty->termios, old_termios))
 		return;
 
 	cflag = tty->termios->c_cflag;
@@ -294,7 +294,8 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	if (!buf) {
 		dev_err(&port->dev, "%s - out of memory.\n", __func__);
 		/* Report back no change occurred */
-		*tty->termios = *old_termios;
+		if (old_termios)
+			*tty->termios = *old_termios;
 		return;
 	}
 
@@ -434,7 +435,7 @@ static void pl2303_set_termios(struct tty_struct *tty,
 	control = priv->line_control;
 	if ((cflag & CBAUD) == B0)
 		priv->line_control &= ~(CONTROL_DTR | CONTROL_RTS);
-	else if ((old_termios->c_cflag & CBAUD) == B0)
+	else if (old_termios && (old_termios->c_cflag & CBAUD) == B0)
 		priv->line_control |= (CONTROL_DTR | CONTROL_RTS);
 	if (control != priv->line_control) {
 		control = priv->line_control;
@@ -493,7 +494,6 @@ static void pl2303_close(struct usb_serial_port *port)
 
 static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct ktermios tmp_termios;
 	struct usb_serial *serial = port->serial;
 	struct pl2303_serial_private *spriv = usb_get_serial_data(serial);
 	int result;
@@ -509,7 +509,7 @@ static int pl2303_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* Setup termios */
 	if (tty)
-		pl2303_set_termios(tty, port, &tmp_termios);
+		pl2303_set_termios(tty, port, NULL);
 
 	result = usb_submit_urb(port->interrupt_in_urb, GFP_KERNEL);
 	if (result) {
diff --git a/drivers/usb/serial/qcserial.c b/drivers/usb/serial/qcserial.c
index 93232ca..cdfd838 100644
--- a/drivers/usb/serial/qcserial.c
+++ b/drivers/usb/serial/qcserial.c
@@ -119,6 +119,7 @@ static const struct usb_device_id id_table[] = {
 	{USB_DEVICE(0x1199, 0x901b)},	/* Sierra Wireless MC7770 */
 	{USB_DEVICE(0x12D1, 0x14F0)},	/* Sony Gobi 3000 QDL */
 	{USB_DEVICE(0x12D1, 0x14F1)},	/* Sony Gobi 3000 Composite */
+	{USB_DEVICE(0x0AF0, 0x8120)},	/* Option GTM681W */
 
 	/* non Gobi Qualcomm serial devices */
 	{USB_DEVICE_INTERFACE_NUMBER(0x0f3d, 0x68a2, 0)},	/* Sierra Wireless MC7700 Device Management */
diff --git a/drivers/usb/serial/spcp8x5.c b/drivers/usb/serial/spcp8x5.c
index 0822a10..cc35b13 100644
--- a/drivers/usb/serial/spcp8x5.c
+++ b/drivers/usb/serial/spcp8x5.c
@@ -319,7 +319,6 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
 	struct spcp8x5_private *priv = usb_get_serial_port_data(port);
 	unsigned long flags;
 	unsigned int cflag = tty->termios->c_cflag;
-	unsigned int old_cflag = old_termios->c_cflag;
 	unsigned short uartdata;
 	unsigned char buf[2] = {0, 0};
 	int baud;
@@ -328,15 +327,15 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
 
 
 	/* check that they really want us to change something */
-	if (!tty_termios_hw_change(tty->termios, old_termios))
+	if (old_termios && !tty_termios_hw_change(tty->termios, old_termios))
 		return;
 
 	/* set DTR/RTS active */
 	spin_lock_irqsave(&priv->lock, flags);
 	control = priv->line_control;
-	if ((old_cflag & CBAUD) == B0) {
+	if (old_termios && (old_termios->c_cflag & CBAUD) == B0) {
 		priv->line_control |= MCR_DTR;
-		if (!(old_cflag & CRTSCTS))
+		if (!(old_termios->c_cflag & CRTSCTS))
 			priv->line_control |= MCR_RTS;
 	}
 	if (control != priv->line_control) {
@@ -426,7 +425,6 @@ static void spcp8x5_set_termios(struct tty_struct *tty,
  * status of the device. */
 static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
 {
-	struct ktermios tmp_termios;
 	struct usb_serial *serial = port->serial;
 	struct spcp8x5_private *priv = usb_get_serial_port_data(port);
 	int ret;
@@ -447,7 +445,7 @@ static int spcp8x5_open(struct tty_struct *tty, struct usb_serial_port *port)
 
 	/* Setup termios */
 	if (tty)
-		spcp8x5_set_termios(tty, port, &tmp_termios);
+		spcp8x5_set_termios(tty, port, NULL);
 
 	spcp8x5_get_msr(serial->dev, &status, priv->type);
 
diff --git a/drivers/usb/serial/usb-serial.c b/drivers/usb/serial/usb-serial.c
index 5f38894..ac03c58 100644
--- a/drivers/usb/serial/usb-serial.c
+++ b/drivers/usb/serial/usb-serial.c
@@ -377,6 +377,22 @@ static int serial_chars_in_buffer(struct tty_struct *tty)
 	return port->serial->type->chars_in_buffer(tty);
 }
 
+static void serial_wait_until_sent(struct tty_struct *tty, int timeout)
+{
+	struct usb_serial_port *port = tty->driver_data;
+	struct usb_serial *serial = port->serial;
+
+	dev_dbg(tty->dev, "%s\n", __func__);
+
+	if (!port->serial->type->wait_until_sent)
+		return;
+
+	mutex_lock(&serial->disc_mutex);
+	if (!serial->disconnected)
+		port->serial->type->wait_until_sent(tty, timeout);
+	mutex_unlock(&serial->disc_mutex);
+}
+
 static void serial_throttle(struct tty_struct *tty)
 {
 	struct usb_serial_port *port = tty->driver_data;
@@ -1200,6 +1216,7 @@ static const struct tty_operations serial_ops = {
 	.unthrottle =		serial_unthrottle,
 	.break_ctl =		serial_break,
 	.chars_in_buffer =	serial_chars_in_buffer,
+	.wait_until_sent =	serial_wait_until_sent,
 	.tiocmget =		serial_tiocmget,
 	.tiocmset =		serial_tiocmset,
 	.get_icount =		serial_get_icount,
@@ -1332,6 +1349,8 @@ static void fixup_generic(struct usb_serial_driver *device)
 	set_to_generic_if_null(device, close);
 	set_to_generic_if_null(device, write_room);
 	set_to_generic_if_null(device, chars_in_buffer);
+	if (device->tx_empty)
+		set_to_generic_if_null(device, wait_until_sent);
 	set_to_generic_if_null(device, read_bulk_callback);
 	set_to_generic_if_null(device, write_bulk_callback);
 	set_to_generic_if_null(device, disconnect);
diff --git a/drivers/usb/serial/visor.c b/drivers/usb/serial/visor.c
index f253c91..4b53336 100644
--- a/drivers/usb/serial/visor.c
+++ b/drivers/usb/serial/visor.c
@@ -570,10 +570,19 @@ static int treo_attach(struct usb_serial *serial)
 	*/
 #define COPY_PORT(dest, src)						\
 	do { \
+		int i;							\
+									\
+		for (i = 0; i < ARRAY_SIZE(src->read_urbs); ++i) {	\
+			dest->read_urbs[i] = src->read_urbs[i];		\
+			dest->read_urbs[i]->context = dest;		\
+			dest->bulk_in_buffers[i] = src->bulk_in_buffers[i]; \
+		}							\
 		dest->read_urb = src->read_urb;				\
 		dest->bulk_in_endpointAddress = src->bulk_in_endpointAddress;\
 		dest->bulk_in_buffer = src->bulk_in_buffer;		\
+		dest->bulk_in_size = src->bulk_in_size;			\
 		dest->interrupt_in_urb = src->interrupt_in_urb;		\
+		dest->interrupt_in_urb->context = dest;			\
 		dest->interrupt_in_endpointAddress = \
 					src->interrupt_in_endpointAddress;\
 		dest->interrupt_in_buffer = src->interrupt_in_buffer;	\
diff --git a/drivers/usb/serial/whiteheat.c b/drivers/usb/serial/whiteheat.c
index bd36321..e8d650b 100644
--- a/drivers/usb/serial/whiteheat.c
+++ b/drivers/usb/serial/whiteheat.c
@@ -720,7 +720,7 @@ static void firm_setup_port(struct tty_struct *tty)
 	struct whiteheat_port_settings port_settings;
 	unsigned int cflag = tty->termios->c_cflag;
 
-	port_settings.port = port->number + 1;
+	port_settings.port = port->number - port->serial->minor + 1;
 
 	/* get the byte size */
 	switch (cflag & CSIZE) {
diff --git a/fs/ceph/locks.c b/fs/ceph/locks.c
index 80576d05..bb5fb3d 100644
--- a/fs/ceph/locks.c
+++ b/fs/ceph/locks.c
@@ -191,27 +191,23 @@ void ceph_count_locks(struct inode *inode, int *fcntl_count, int *flock_count)
 }
 
 /**
- * Encode the flock and fcntl locks for the given inode into the pagelist.
- * Format is: #fcntl locks, sequential fcntl locks, #flock locks,
- * sequential flock locks.
- * Must be called with lock_flocks() already held.
- * If we encounter more of a specific lock type than expected,
- * we return the value 1.
+ * Encode the flock and fcntl locks for the given inode into the ceph_filelock
+ * array. Must be called with lock_flocks() already held.
+ * If we encounter more of a specific lock type than expected, return -ENOSPC.
  */
-int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
-		      int num_fcntl_locks, int num_flock_locks)
+int ceph_encode_locks_to_buffer(struct inode *inode,
+				struct ceph_filelock *flocks,
+				int num_fcntl_locks, int num_flock_locks)
 {
 	struct file_lock *lock;
-	struct ceph_filelock cephlock;
 	int err = 0;
 	int seen_fcntl = 0;
 	int seen_flock = 0;
+	int l = 0;
 
 	dout("encoding %d flock and %d fcntl locks", num_flock_locks,
 	     num_fcntl_locks);
-	err = ceph_pagelist_append(pagelist, &num_fcntl_locks, sizeof(u32));
-	if (err)
-		goto fail;
+
 	for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
 		if (lock->fl_flags & FL_POSIX) {
 			++seen_fcntl;
@@ -219,19 +215,12 @@ int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
 				err = -ENOSPC;
 				goto fail;
 			}
-			err = lock_to_ceph_filelock(lock, &cephlock);
+			err = lock_to_ceph_filelock(lock, &flocks[l]);
 			if (err)
 				goto fail;
-			err = ceph_pagelist_append(pagelist, &cephlock,
-					   sizeof(struct ceph_filelock));
+			++l;
 		}
-		if (err)
-			goto fail;
 	}
-
-	err = ceph_pagelist_append(pagelist, &num_flock_locks, sizeof(u32));
-	if (err)
-		goto fail;
 	for (lock = inode->i_flock; lock != NULL; lock = lock->fl_next) {
 		if (lock->fl_flags & FL_FLOCK) {
 			++seen_flock;
@@ -239,19 +228,51 @@ int ceph_encode_locks(struct inode *inode, struct ceph_pagelist *pagelist,
 				err = -ENOSPC;
 				goto fail;
 			}
-			err = lock_to_ceph_filelock(lock, &cephlock);
+			err = lock_to_ceph_filelock(lock, &flocks[l]);
 			if (err)
 				goto fail;
-			err = ceph_pagelist_append(pagelist, &cephlock,
-					   sizeof(struct ceph_filelock));
+			++l;
 		}
-		if (err)
-			goto fail;
 	}
 fail:
 	return err;
 }
 
+/**
+ * Copy the encoded flock and fcntl locks into the pagelist.
+ * Format is: #fcntl locks, sequential fcntl locks, #flock locks,
+ * sequential flock locks.
+ * Returns zero on success.
+ */
+int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
+			   struct ceph_pagelist *pagelist,
+			   int num_fcntl_locks, int num_flock_locks)
+{
+	int err = 0;
+	__le32 nlocks;
+
+	nlocks = cpu_to_le32(num_fcntl_locks);
+	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
+	if (err)
+		goto out_fail;
+
+	err = ceph_pagelist_append(pagelist, flocks,
+				   num_fcntl_locks * sizeof(*flocks));
+	if (err)
+		goto out_fail;
+
+	nlocks = cpu_to_le32(num_flock_locks);
+	err = ceph_pagelist_append(pagelist, &nlocks, sizeof(nlocks));
+	if (err)
+		goto out_fail;
+
+	err = ceph_pagelist_append(pagelist,
+				   &flocks[num_fcntl_locks],
+				   num_flock_locks * sizeof(*flocks));
+out_fail:
+	return err;
+}
+
 /*
  * Given a pointer to a lock, convert it to a ceph filelock
  */
diff --git a/fs/ceph/mds_client.c b/fs/ceph/mds_client.c
index 1bcf712..7b500bb 100644
--- a/fs/ceph/mds_client.c
+++ b/fs/ceph/mds_client.c
@@ -336,9 +336,9 @@ void ceph_put_mds_session(struct ceph_mds_session *s)
 	     atomic_read(&s->s_ref), atomic_read(&s->s_ref)-1);
 	if (atomic_dec_and_test(&s->s_ref)) {
 		if (s->s_auth.authorizer)
-		     s->s_mdsc->fsc->client->monc.auth->ops->destroy_authorizer(
-			     s->s_mdsc->fsc->client->monc.auth,
-			     s->s_auth.authorizer);
+			ceph_auth_destroy_authorizer(
+				s->s_mdsc->fsc->client->monc.auth,
+				s->s_auth.authorizer);
 		kfree(s);
 	}
 }
@@ -2440,39 +2440,44 @@ static int encode_caps_cb(struct inode *inode, struct ceph_cap *cap,
 
 	if (recon_state->flock) {
 		int num_fcntl_locks, num_flock_locks;
-		struct ceph_pagelist_cursor trunc_point;
-
-		ceph_pagelist_set_cursor(pagelist, &trunc_point);
-		do {
-			lock_flocks();
-			ceph_count_locks(inode, &num_fcntl_locks,
-					 &num_flock_locks);
-			rec.v2.flock_len = (2*sizeof(u32) +
-					    (num_fcntl_locks+num_flock_locks) *
-					    sizeof(struct ceph_filelock));
-			unlock_flocks();
-
-			/* pre-alloc pagelist */
-			ceph_pagelist_truncate(pagelist, &trunc_point);
-			err = ceph_pagelist_append(pagelist, &rec, reclen);
-			if (!err)
-				err = ceph_pagelist_reserve(pagelist,
-							    rec.v2.flock_len);
-
-			/* encode locks */
-			if (!err) {
-				lock_flocks();
-				err = ceph_encode_locks(inode,
-							pagelist,
-							num_fcntl_locks,
-							num_flock_locks);
-				unlock_flocks();
-			}
-		} while (err == -ENOSPC);
+		struct ceph_filelock *flocks;
+
+encode_again:
+		lock_flocks();
+		ceph_count_locks(inode, &num_fcntl_locks, &num_flock_locks);
+		unlock_flocks();
+		flocks = kmalloc((num_fcntl_locks+num_flock_locks) *
+				 sizeof(struct ceph_filelock), GFP_NOFS);
+		if (!flocks) {
+			err = -ENOMEM;
+			goto out_free;
+		}
+		lock_flocks();
+		err = ceph_encode_locks_to_buffer(inode, flocks,
+						  num_fcntl_locks,
+						  num_flock_locks);
+		unlock_flocks();
+		if (err) {
+			kfree(flocks);
+			if (err == -ENOSPC)
+				goto encode_again;
+			goto out_free;
+		}
+		/*
+		 * number of encoded locks is stable, so copy to pagelist
+		 */
+		rec.v2.flock_len = cpu_to_le32(2*sizeof(u32) +
+				    (num_fcntl_locks+num_flock_locks) *
+				    sizeof(struct ceph_filelock));
+		err = ceph_pagelist_append(pagelist, &rec, reclen);
+		if (!err)
+			err = ceph_locks_to_pagelist(flocks, pagelist,
+						     num_fcntl_locks,
+						     num_flock_locks);
+		kfree(flocks);
 	} else {
 		err = ceph_pagelist_append(pagelist, &rec, reclen);
 	}
-
 out_free:
 	kfree(path);
 out_dput:
@@ -3399,13 +3404,17 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
 	struct ceph_auth_handshake *auth = &s->s_auth;
 
 	if (force_new && auth->authorizer) {
-		if (ac->ops && ac->ops->destroy_authorizer)
-			ac->ops->destroy_authorizer(ac, auth->authorizer);
+		ceph_auth_destroy_authorizer(ac, auth->authorizer);
 		auth->authorizer = NULL;
 	}
-	if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
-		int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
-							auth);
+	if (!auth->authorizer) {
+		int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
+						      auth);
+		if (ret)
+			return ERR_PTR(ret);
+	} else {
+		int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_MDS,
+						      auth);
 		if (ret)
 			return ERR_PTR(ret);
 	}
@@ -3421,7 +3430,7 @@ static int verify_authorizer_reply(struct ceph_connection *con, int len)
 	struct ceph_mds_client *mdsc = s->s_mdsc;
 	struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
 
-	return ac->ops->verify_authorizer_reply(ac, s->s_auth.authorizer, len);
+	return ceph_auth_verify_authorizer_reply(ac, s->s_auth.authorizer, len);
 }
 
 static int invalidate_authorizer(struct ceph_connection *con)
@@ -3430,8 +3439,7 @@ static int invalidate_authorizer(struct ceph_connection *con)
 	struct ceph_mds_client *mdsc = s->s_mdsc;
 	struct ceph_auth_client *ac = mdsc->fsc->client->monc.auth;
 
-	if (ac->ops->invalidate_authorizer)
-		ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_MDS);
+	ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_MDS);
 
 	return ceph_monc_validate_auth(&mdsc->fsc->client->monc);
 }
diff --git a/fs/ceph/super.h b/fs/ceph/super.h
index 66ebe72..bd49b4f 100644
--- a/fs/ceph/super.h
+++ b/fs/ceph/super.h
@@ -847,8 +847,13 @@ extern const struct export_operations ceph_export_ops;
 extern int ceph_lock(struct file *file, int cmd, struct file_lock *fl);
 extern int ceph_flock(struct file *file, int cmd, struct file_lock *fl);
 extern void ceph_count_locks(struct inode *inode, int *p_num, int *f_num);
-extern int ceph_encode_locks(struct inode *i, struct ceph_pagelist *p,
-			     int p_locks, int f_locks);
+extern int ceph_encode_locks_to_buffer(struct inode *inode,
+				       struct ceph_filelock *flocks,
+				       int num_fcntl_locks,
+				       int num_flock_locks);
+extern int ceph_locks_to_pagelist(struct ceph_filelock *flocks,
+				  struct ceph_pagelist *pagelist,
+				  int num_fcntl_locks, int num_flock_locks);
 extern int lock_to_ceph_filelock(struct file_lock *fl, struct ceph_filelock *c);
 
 /* debugfs.c */
diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index ce5cbd7..52527dd 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -18,6 +18,7 @@
 #include <linux/slab.h>
 #include <linux/vfs.h>
 #include <linux/fs.h>
+#include <linux/inet.h>
 #include "cifsglob.h"
 #include "cifsproto.h"
 #include "cifsfs.h"
@@ -150,7 +151,8 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
 	 * assuming that we have 'unc=' and 'ip=' in
 	 * the original sb_mountdata
 	 */
-	md_len = strlen(sb_mountdata) + rc + strlen(ref->node_name) + 12;
+	md_len = strlen(sb_mountdata) + rc + strlen(ref->node_name) + 12 +
+			INET6_ADDRSTRLEN;
 	mountdata = kzalloc(md_len+1, GFP_KERNEL);
 	if (mountdata == NULL) {
 		rc = -ENOMEM;
diff --git a/fs/cifs/inode.c b/fs/cifs/inode.c
index cb79c7e..8808dce 100644
--- a/fs/cifs/inode.c
+++ b/fs/cifs/inode.c
@@ -169,7 +169,8 @@ cifs_fattr_to_inode(struct inode *inode, struct cifs_fattr *fattr)
 
 	if (fattr->cf_flags & CIFS_FATTR_DFS_REFERRAL)
 		inode->i_flags |= S_AUTOMOUNT;
-	cifs_set_ops(inode);
+	if (inode->i_state & I_NEW)
+		cifs_set_ops(inode);
 }
 
 void
diff --git a/fs/ecryptfs/file.c b/fs/ecryptfs/file.c
index d45ba45..9d5dd5c 100644
--- a/fs/ecryptfs/file.c
+++ b/fs/ecryptfs/file.c
@@ -296,6 +296,12 @@ static int ecryptfs_release(struct inode *inode, struct file *file)
 static int
 ecryptfs_fsync(struct file *file, loff_t start, loff_t end, int datasync)
 {
+	int rc;
+
+	rc = filemap_write_and_wait(file->f_mapping);
+	if (rc)
+		return rc;
+
 	return vfs_fsync(ecryptfs_file_to_lower(file), datasync);
 }
 
diff --git a/fs/fat/inode.c b/fs/fat/inode.c
index 05e897f..ca5241f 100644
--- a/fs/fat/inode.c
+++ b/fs/fat/inode.c
@@ -1212,6 +1212,19 @@ static int fat_read_root(struct inode *inode)
 	return 0;
 }
 
+static unsigned long calc_fat_clusters(struct super_block *sb)
+{
+	struct msdos_sb_info *sbi = MSDOS_SB(sb);
+
+	/* Divide first to avoid overflow */
+	if (sbi->fat_bits != 12) {
+		unsigned long ent_per_sec = sb->s_blocksize * 8 / sbi->fat_bits;
+		return ent_per_sec * sbi->fat_length;
+	}
+
+	return sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+}
+
 /*
  * Read the super block of an MS-DOS FS.
  */
@@ -1409,7 +1422,7 @@ int fat_fill_super(struct super_block *sb, void *data, int silent, int isvfat,
 		sbi->fat_bits = (total_clusters > MAX_FAT12) ? 16 : 12;
 
 	/* check that FAT table does not overflow */
-	fat_clusters = sbi->fat_length * sb->s_blocksize * 8 / sbi->fat_bits;
+	fat_clusters = calc_fat_clusters(sb);
 	total_clusters = min(total_clusters, fat_clusters - FAT_START_ENT);
 	if (total_clusters > MAX_FAT(sb)) {
 		if (!silent)
diff --git a/fs/jfs/inode.c b/fs/jfs/inode.c
index 4692bf3..7e54dfd 100644
--- a/fs/jfs/inode.c
+++ b/fs/jfs/inode.c
@@ -125,7 +125,7 @@ int jfs_write_inode(struct inode *inode, struct writeback_control *wbc)
 {
 	int wait = wbc->sync_mode == WB_SYNC_ALL;
 
-	if (test_cflag(COMMIT_Nolink, inode))
+	if (inode->i_nlink == 0)
 		return 0;
 	/*
 	 * If COMMIT_DIRTY is not set, the inode isn't really dirty.
diff --git a/fs/jfs/jfs_logmgr.c b/fs/jfs/jfs_logmgr.c
index 2eb952c..cbe48ea 100644
--- a/fs/jfs/jfs_logmgr.c
+++ b/fs/jfs/jfs_logmgr.c
@@ -1058,7 +1058,8 @@ static int lmLogSync(struct jfs_log * log, int hard_sync)
  */
 void jfs_syncpt(struct jfs_log *log, int hard_sync)
 {	LOG_LOCK(log);
-	lmLogSync(log, hard_sync);
+	if (!test_bit(log_QUIESCE, &log->flag))
+		lmLogSync(log, hard_sync);
 	LOG_UNLOCK(log);
 }
 
diff --git a/fs/nfs/nfs4proc.c b/fs/nfs/nfs4proc.c
index 4d135ef..24affff 100644
--- a/fs/nfs/nfs4proc.c
+++ b/fs/nfs/nfs4proc.c
@@ -1074,7 +1074,7 @@ static struct nfs4_state *nfs4_try_open_cached(struct nfs4_opendata *opendata)
 	struct nfs4_state *state = opendata->state;
 	struct nfs_inode *nfsi = NFS_I(state->inode);
 	struct nfs_delegation *delegation;
-	int open_mode = opendata->o_arg.open_flags & (O_EXCL|O_TRUNC);
+	int open_mode = opendata->o_arg.open_flags;
 	fmode_t fmode = opendata->o_arg.fmode;
 	nfs4_stateid stateid;
 	int ret = -EAGAIN;
diff --git a/fs/nilfs2/inode.c b/fs/nilfs2/inode.c
index 6e2c3db..cbda0a4 100644
--- a/fs/nilfs2/inode.c
+++ b/fs/nilfs2/inode.c
@@ -202,13 +202,32 @@ static int nilfs_writepage(struct page *page, struct writeback_control *wbc)
 
 static int nilfs_set_page_dirty(struct page *page)
 {
-	int ret = __set_page_dirty_buffers(page);
+	int ret = __set_page_dirty_nobuffers(page);
 
-	if (ret) {
+	if (page_has_buffers(page)) {
 		struct inode *inode = page->mapping->host;
-		unsigned nr_dirty = 1 << (PAGE_SHIFT - inode->i_blkbits);
+		unsigned nr_dirty = 0;
+		struct buffer_head *bh, *head;
 
-		nilfs_set_file_dirty(inode, nr_dirty);
+		/*
+		 * This page is locked by callers, and no other thread
+		 * concurrently marks its buffers dirty since they are
+		 * only dirtied through routines in fs/buffer.c in
+		 * which call sites of mark_buffer_dirty are protected
+		 * by page lock.
+		 */
+		bh = head = page_buffers(page);
+		do {
+			/* Do not mark hole blocks dirty */
+			if (buffer_dirty(bh) || !buffer_mapped(bh))
+				continue;
+
+			set_buffer_dirty(bh);
+			nr_dirty++;
+		} while (bh = bh->b_this_page, bh != head);
+
+		if (nr_dirty)
+			nilfs_set_file_dirty(inode, nr_dirty);
 	}
 	return ret;
 }
diff --git a/fs/ocfs2/extent_map.c b/fs/ocfs2/extent_map.c
index 70b5863..4dd0239 100644
--- a/fs/ocfs2/extent_map.c
+++ b/fs/ocfs2/extent_map.c
@@ -791,7 +791,7 @@ int ocfs2_fiemap(struct inode *inode, struct fiemap_extent_info *fieinfo,
 						 &hole_size, &rec, &is_last);
 		if (ret) {
 			mlog_errno(ret);
-			goto out;
+			goto out_unlock;
 		}
 
 		if (rec.e_blkno == 0ULL) {
diff --git a/fs/proc/kmsg.c b/fs/proc/kmsg.c
index bd4b5a7..bdfabda 100644
--- a/fs/proc/kmsg.c
+++ b/fs/proc/kmsg.c
@@ -21,12 +21,12 @@ extern wait_queue_head_t log_wait;
 
 static int kmsg_open(struct inode * inode, struct file * file)
 {
-	return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_FILE);
+	return do_syslog(SYSLOG_ACTION_OPEN, NULL, 0, SYSLOG_FROM_PROC);
 }
 
 static int kmsg_release(struct inode * inode, struct file * file)
 {
-	(void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_FILE);
+	(void) do_syslog(SYSLOG_ACTION_CLOSE, NULL, 0, SYSLOG_FROM_PROC);
 	return 0;
 }
 
@@ -34,15 +34,15 @@ static ssize_t kmsg_read(struct file *file, char __user *buf,
 			 size_t count, loff_t *ppos)
 {
 	if ((file->f_flags & O_NONBLOCK) &&
-	    !do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_FILE))
+	    !do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC))
 		return -EAGAIN;
-	return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_FILE);
+	return do_syslog(SYSLOG_ACTION_READ, buf, count, SYSLOG_FROM_PROC);
 }
 
 static unsigned int kmsg_poll(struct file *file, poll_table *wait)
 {
 	poll_wait(file, &log_wait, wait);
-	if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_FILE))
+	if (do_syslog(SYSLOG_ACTION_SIZE_UNREAD, NULL, 0, SYSLOG_FROM_PROC))
 		return POLLIN | POLLRDNORM;
 	return 0;
 }
diff --git a/fs/reiserfs/dir.c b/fs/reiserfs/dir.c
index 66c53b6..6c2d136 100644
--- a/fs/reiserfs/dir.c
+++ b/fs/reiserfs/dir.c
@@ -204,6 +204,8 @@ int reiserfs_readdir_dentry(struct dentry *dentry, void *dirent,
 				next_pos = deh_offset(deh) + 1;
 
 				if (item_moved(&tmp_ih, &path_to_entry)) {
+					set_cpu_key_k_offset(&pos_key,
+							     next_pos);
 					goto research;
 				}
 			}	/* for */
diff --git a/fs/reiserfs/inode.c b/fs/reiserfs/inode.c
index 567c10c..582777f 100644
--- a/fs/reiserfs/inode.c
+++ b/fs/reiserfs/inode.c
@@ -1810,11 +1810,16 @@ int reiserfs_new_inode(struct reiserfs_transaction_handle *th,
 				  TYPE_STAT_DATA, SD_SIZE, MAX_US_INT);
 	memcpy(INODE_PKEY(inode), &(ih.ih_key), KEY_SIZE);
 	args.dirid = le32_to_cpu(ih.ih_key.k_dir_id);
-	if (insert_inode_locked4(inode, args.objectid,
-			     reiserfs_find_actor, &args) < 0) {
+
+	reiserfs_write_unlock(inode->i_sb);
+	err = insert_inode_locked4(inode, args.objectid,
+			     reiserfs_find_actor, &args);
+	reiserfs_write_lock(inode->i_sb);
+	if (err) {
 		err = -EINVAL;
 		goto out_bad_inode;
 	}
+
 	if (old_format_only(sb))
 		/* not a perfect generation count, as object ids can be reused, but
 		 ** this is as good as reiserfs can do right now.
diff --git a/fs/reiserfs/xattr.c b/fs/reiserfs/xattr.c
index d319963..78f823d 100644
--- a/fs/reiserfs/xattr.c
+++ b/fs/reiserfs/xattr.c
@@ -318,7 +318,19 @@ static int delete_one_xattr(struct dentry *dentry, void *data)
 static int chown_one_xattr(struct dentry *dentry, void *data)
 {
 	struct iattr *attrs = data;
-	return reiserfs_setattr(dentry, attrs);
+	int ia_valid = attrs->ia_valid;
+	int err;
+
+	/*
+	 * We only want the ownership bits. Otherwise, we'll do
+	 * things like change a directory to a regular file if
+	 * ATTR_MODE is set.
+	 */
+	attrs->ia_valid &= (ATTR_UID|ATTR_GID);
+	err = reiserfs_setattr(dentry, attrs);
+	attrs->ia_valid = ia_valid;
+
+	return err;
 }
 
 /* No i_mutex, but the inode is unconnected. */
diff --git a/fs/reiserfs/xattr_acl.c b/fs/reiserfs/xattr_acl.c
index 44474f9..84fe30c 100644
--- a/fs/reiserfs/xattr_acl.c
+++ b/fs/reiserfs/xattr_acl.c
@@ -429,6 +429,9 @@ int reiserfs_acl_chmod(struct inode *inode)
 	int depth;
 	int error;
 
+	if (IS_PRIVATE(inode))
+		return 0;
+
 	if (S_ISLNK(inode->i_mode))
 		return -EOPNOTSUPP;
 
diff --git a/fs/xfs/xfs_iops.c b/fs/xfs/xfs_iops.c
index 4e00cf0..53c2145 100644
--- a/fs/xfs/xfs_iops.c
+++ b/fs/xfs/xfs_iops.c
@@ -454,6 +454,28 @@ xfs_vn_getattr(
 	return 0;
 }
 
+static void
+xfs_setattr_mode(
+	struct xfs_trans	*tp,
+	struct xfs_inode	*ip,
+	struct iattr		*iattr)
+{
+	struct inode	*inode = VFS_I(ip);
+	umode_t		mode = iattr->ia_mode;
+
+	ASSERT(tp);
+	ASSERT(xfs_isilocked(ip, XFS_ILOCK_EXCL));
+
+	if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
+		mode &= ~S_ISGID;
+
+	ip->i_d.di_mode &= S_IFMT;
+	ip->i_d.di_mode |= mode & ~S_IFMT;
+
+	inode->i_mode &= S_IFMT;
+	inode->i_mode |= mode & ~S_IFMT;
+}
+
 int
 xfs_setattr_nonsize(
 	struct xfs_inode	*ip,
@@ -605,18 +627,8 @@ xfs_setattr_nonsize(
 	/*
 	 * Change file access modes.
 	 */
-	if (mask & ATTR_MODE) {
-		umode_t mode = iattr->ia_mode;
-
-		if (!in_group_p(inode->i_gid) && !capable(CAP_FSETID))
-			mode &= ~S_ISGID;
-
-		ip->i_d.di_mode &= S_IFMT;
-		ip->i_d.di_mode |= mode & ~S_IFMT;
-
-		inode->i_mode &= S_IFMT;
-		inode->i_mode |= mode & ~S_IFMT;
-	}
+	if (mask & ATTR_MODE)
+		xfs_setattr_mode(tp, ip, iattr);
 
 	/*
 	 * Change file access or modified times.
@@ -713,9 +725,8 @@ xfs_setattr_size(
 		return XFS_ERROR(error);
 
 	ASSERT(S_ISREG(ip->i_d.di_mode));
-	ASSERT((mask & (ATTR_MODE|ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
-			ATTR_MTIME_SET|ATTR_KILL_SUID|ATTR_KILL_SGID|
-			ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
+	ASSERT((mask & (ATTR_UID|ATTR_GID|ATTR_ATIME|ATTR_ATIME_SET|
+			ATTR_MTIME_SET|ATTR_KILL_PRIV|ATTR_TIMES_SET)) == 0);
 
 	if (!(flags & XFS_ATTR_NOLOCK)) {
 		lock_flags |= XFS_IOLOCK_EXCL;
@@ -856,6 +867,12 @@ xfs_setattr_size(
 		xfs_iflags_set(ip, XFS_ITRUNCATED);
 	}
 
+	/*
+	 * Change file access modes.
+	 */
+	if (mask & ATTR_MODE)
+		xfs_setattr_mode(tp, ip, iattr);
+
 	if (mask & ATTR_CTIME) {
 		inode->i_ctime = iattr->ia_ctime;
 		ip->i_d.di_ctime.t_sec = iattr->ia_ctime.tv_sec;
diff --git a/include/linux/ceph/auth.h b/include/linux/ceph/auth.h
index d4080f3..5f33868 100644
--- a/include/linux/ceph/auth.h
+++ b/include/linux/ceph/auth.h
@@ -52,6 +52,9 @@ struct ceph_auth_client_ops {
 	 */
 	int (*create_authorizer)(struct ceph_auth_client *ac, int peer_type,
 				 struct ceph_auth_handshake *auth);
+	/* ensure that an existing authorizer is up to date */
+	int (*update_authorizer)(struct ceph_auth_client *ac, int peer_type,
+				 struct ceph_auth_handshake *auth);
 	int (*verify_authorizer_reply)(struct ceph_auth_client *ac,
 				       struct ceph_authorizer *a, size_t len);
 	void (*destroy_authorizer)(struct ceph_auth_client *ac,
@@ -75,6 +78,8 @@ struct ceph_auth_client {
 	u64 global_id;          /* our unique id in system */
 	const struct ceph_crypto_key *key;     /* our secret key */
 	unsigned want_keys;     /* which services we want */
+
+	struct mutex mutex;
 };
 
 extern struct ceph_auth_client *ceph_auth_init(const char *name,
@@ -94,5 +99,18 @@ extern int ceph_build_auth(struct ceph_auth_client *ac,
 		    void *msg_buf, size_t msg_len);
 
 extern int ceph_auth_is_authenticated(struct ceph_auth_client *ac);
+extern int ceph_auth_create_authorizer(struct ceph_auth_client *ac,
+				       int peer_type,
+				       struct ceph_auth_handshake *auth);
+extern void ceph_auth_destroy_authorizer(struct ceph_auth_client *ac,
+					 struct ceph_authorizer *a);
+extern int ceph_auth_update_authorizer(struct ceph_auth_client *ac,
+				       int peer_type,
+				       struct ceph_auth_handshake *a);
+extern int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
+					     struct ceph_authorizer *a,
+					     size_t len);
+extern void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac,
+					    int peer_type);
 
 #endif
diff --git a/include/linux/cpu.h b/include/linux/cpu.h
index ce7a074..714e792 100644
--- a/include/linux/cpu.h
+++ b/include/linux/cpu.h
@@ -175,6 +175,8 @@ extern struct bus_type cpu_subsys;
 
 extern void get_online_cpus(void);
 extern void put_online_cpus(void);
+extern void cpu_hotplug_disable(void);
+extern void cpu_hotplug_enable(void);
 #define hotcpu_notifier(fn, pri)	cpu_notifier(fn, pri)
 #define register_hotcpu_notifier(nb)	register_cpu_notifier(nb)
 #define unregister_hotcpu_notifier(nb)	unregister_cpu_notifier(nb)
@@ -198,6 +200,8 @@ static inline void cpu_hotplug_driver_unlock(void)
 
 #define get_online_cpus()	do { } while (0)
 #define put_online_cpus()	do { } while (0)
+#define cpu_hotplug_disable()	do { } while (0)
+#define cpu_hotplug_enable()	do { } while (0)
 #define hotcpu_notifier(fn, pri)	do { (void)(fn); } while (0)
 /* These aren't inline functions due to a GCC bug. */
 #define register_hotcpu_notifier(nb)	({ (void)(nb); 0; })
diff --git a/include/linux/swapops.h b/include/linux/swapops.h
index 47ead51..c5fd30d 100644
--- a/include/linux/swapops.h
+++ b/include/linux/swapops.h
@@ -137,6 +137,7 @@ static inline void make_migration_entry_read(swp_entry_t *entry)
 
 extern void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 					unsigned long address);
+extern void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte);
 #else
 
 #define make_migration_entry(page, write) swp_entry(0, 0)
@@ -148,6 +149,8 @@ static inline int is_migration_entry(swp_entry_t swp)
 static inline void make_migration_entry_read(swp_entry_t *entryp) { }
 static inline void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
 					 unsigned long address) { }
+static inline void migration_entry_wait_huge(struct mm_struct *mm,
+					pte_t *pte) { }
 static inline int is_write_migration_entry(swp_entry_t entry)
 {
 	return 0;
diff --git a/include/linux/syslog.h b/include/linux/syslog.h
index 3891139..98a3153 100644
--- a/include/linux/syslog.h
+++ b/include/linux/syslog.h
@@ -44,8 +44,8 @@
 /* Return size of the log buffer */
 #define SYSLOG_ACTION_SIZE_BUFFER   10
 
-#define SYSLOG_FROM_CALL 0
-#define SYSLOG_FROM_FILE 1
+#define SYSLOG_FROM_READER           0
+#define SYSLOG_FROM_PROC             1
 
 int do_syslog(int type, char __user *buf, int count, bool from_file);
 
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 0b61f01..f0950dc 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -267,6 +267,8 @@ struct usb_serial_driver {
 			struct usb_serial_port *port, struct ktermios *old);
 	void (*break_ctl)(struct tty_struct *tty, int break_state);
 	int  (*chars_in_buffer)(struct tty_struct *tty);
+	void (*wait_until_sent)(struct tty_struct *tty, long timeout);
+	bool (*tx_empty)(struct usb_serial_port *port);
 	void (*throttle)(struct tty_struct *tty);
 	void (*unthrottle)(struct tty_struct *tty);
 	int  (*tiocmget)(struct tty_struct *tty);
@@ -329,6 +331,8 @@ extern void usb_serial_generic_close(struct usb_serial_port *port);
 extern int usb_serial_generic_resume(struct usb_serial *serial);
 extern int usb_serial_generic_write_room(struct tty_struct *tty);
 extern int usb_serial_generic_chars_in_buffer(struct tty_struct *tty);
+extern void usb_serial_generic_wait_until_sent(struct tty_struct *tty,
+								long timeout);
 extern void usb_serial_generic_read_bulk_callback(struct urb *urb);
 extern void usb_serial_generic_write_bulk_callback(struct urb *urb);
 extern void usb_serial_generic_throttle(struct tty_struct *tty);
diff --git a/include/linux/wait.h b/include/linux/wait.h
index 1dee81c..6c6c20e 100644
--- a/include/linux/wait.h
+++ b/include/linux/wait.h
@@ -233,6 +233,8 @@ do {									\
 		if (!ret)						\
 			break;						\
 	}								\
+	if (!ret && (condition))					\
+		ret = 1;						\
 	finish_wait(&wq, &__wait);					\
 } while (0)
 
@@ -249,8 +251,9 @@ do {									\
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
  *
- * The function returns 0 if the @timeout elapsed, and the remaining
- * jiffies if the condition evaluated to true before the timeout elapsed.
+ * The function returns 0 if the @timeout elapsed, or the remaining
+ * jiffies (at least 1) if the @condition evaluated to %true before
+ * the @timeout elapsed.
  */
 #define wait_event_timeout(wq, condition, timeout)			\
 ({									\
@@ -318,6 +321,8 @@ do {									\
 		ret = -ERESTARTSYS;					\
 		break;							\
 	}								\
+	if (!ret && (condition))					\
+		ret = 1;						\
 	finish_wait(&wq, &__wait);					\
 } while (0)
 
@@ -334,9 +339,10 @@ do {									\
  * wake_up() has to be called after changing any variable that could
  * change the result of the wait condition.
  *
- * The function returns 0 if the @timeout elapsed, -ERESTARTSYS if it
- * was interrupted by a signal, and the remaining jiffies otherwise
- * if the condition evaluated to true before the timeout elapsed.
+ * Returns:
+ * 0 if the @timeout elapsed, -%ERESTARTSYS if it was interrupted by
+ * a signal, or the remaining jiffies (at least 1) if the @condition
+ * evaluated to %true before the @timeout elapsed.
  */
 #define wait_event_interruptible_timeout(wq, condition, timeout)	\
 ({									\
diff --git a/include/net/bluetooth/hci_core.h b/include/net/bluetooth/hci_core.h
index 475b8c0..0f35895 100644
--- a/include/net/bluetooth/hci_core.h
+++ b/include/net/bluetooth/hci_core.h
@@ -1002,6 +1002,7 @@ void hci_sock_dev_event(struct hci_dev *hdev, int event);
 int mgmt_control(struct sock *sk, struct msghdr *msg, size_t len);
 int mgmt_index_added(struct hci_dev *hdev);
 int mgmt_index_removed(struct hci_dev *hdev);
+int mgmt_set_powered_failed(struct hci_dev *hdev, int err);
 int mgmt_powered(struct hci_dev *hdev, u8 powered);
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable);
 int mgmt_connectable(struct hci_dev *hdev, u8 connectable);
diff --git a/include/net/bluetooth/mgmt.h b/include/net/bluetooth/mgmt.h
index 4348ee8..bd0fc7d 100644
--- a/include/net/bluetooth/mgmt.h
+++ b/include/net/bluetooth/mgmt.h
@@ -42,6 +42,7 @@
 #define MGMT_STATUS_NOT_POWERED		0x0f
 #define MGMT_STATUS_CANCELLED		0x10
 #define MGMT_STATUS_INVALID_INDEX	0x11
+#define MGMT_STATUS_RFKILLED		0x12
 
 struct mgmt_hdr {
 	__le16	opcode;
diff --git a/include/target/target_core_base.h b/include/target/target_core_base.h
index 5be8937..71f7662 100644
--- a/include/target/target_core_base.h
+++ b/include/target/target_core_base.h
@@ -613,6 +613,7 @@ struct se_session {
 	struct list_head	sess_list;
 	struct list_head	sess_acl_list;
 	struct list_head	sess_cmd_list;
+	struct list_head	sess_wait_list;
 	spinlock_t		sess_cmd_lock;
 	struct kref		sess_kref;
 };
diff --git a/include/xen/interface/io/netif.h b/include/xen/interface/io/netif.h
index cb94668..d4635cd 100644
--- a/include/xen/interface/io/netif.h
+++ b/include/xen/interface/io/netif.h
@@ -13,6 +13,24 @@
 #include "../grant_table.h"
 
 /*
+ * Older implementation of Xen network frontend / backend has an
+ * implicit dependency on the MAX_SKB_FRAGS as the maximum number of
+ * ring slots a skb can use. Netfront / netback may not work as
+ * expected when frontend and backend have different MAX_SKB_FRAGS.
+ *
+ * A better approach is to add mechanism for netfront / netback to
+ * negotiate this value. However we cannot fix all possible
+ * frontends, so we need to define a value which states the minimum
+ * slots backend must support.
+ *
+ * The minimum value derives from older Linux kernel's MAX_SKB_FRAGS
+ * (18), which is proved to work with most frontends. Any new backend
+ * which doesn't negotiate with frontend should expect frontend to
+ * send a valid packet using slots up to this value.
+ */
+#define XEN_NETIF_NR_SLOTS_MIN 18
+
+/*
  * Notifications after enqueuing any type of message should be conditional on
  * the appropriate req_event or rsp_event field in the shared ring.
  * If the client sends notification for rx requests then it should specify
@@ -47,6 +65,7 @@
 #define _XEN_NETTXF_extra_info		(3)
 #define  XEN_NETTXF_extra_info		(1U<<_XEN_NETTXF_extra_info)
 
+#define XEN_NETIF_MAX_TX_SIZE 0xFFFF
 struct xen_netif_tx_request {
     grant_ref_t gref;      /* Reference to buffer page */
     uint16_t offset;       /* Offset within buffer page */
diff --git a/kernel/cpu.c b/kernel/cpu.c
index 14d3258..2e181cb 100644
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -129,6 +129,27 @@ static void cpu_hotplug_done(void)
 	mutex_unlock(&cpu_hotplug.lock);
 }
 
+/*
+ * Wait for currently running CPU hotplug operations to complete (if any) and
+ * disable future CPU hotplug (from sysfs). The 'cpu_add_remove_lock' protects
+ * the 'cpu_hotplug_disabled' flag. The same lock is also acquired by the
+ * hotplug path before performing hotplug operations. So acquiring that lock
+ * guarantees mutual exclusion from any currently running hotplug operations.
+ */
+void cpu_hotplug_disable(void)
+{
+	cpu_maps_update_begin();
+	cpu_hotplug_disabled = 1;
+	cpu_maps_update_done();
+}
+
+void cpu_hotplug_enable(void)
+{
+	cpu_maps_update_begin();
+	cpu_hotplug_disabled = 0;
+	cpu_maps_update_done();
+}
+
 #else /* #if CONFIG_HOTPLUG_CPU */
 static void cpu_hotplug_begin(void) {}
 static void cpu_hotplug_done(void) {}
@@ -534,36 +555,6 @@ static int __init alloc_frozen_cpus(void)
 core_initcall(alloc_frozen_cpus);
 
 /*
- * Prevent regular CPU hotplug from racing with the freezer, by disabling CPU
- * hotplug when tasks are about to be frozen. Also, don't allow the freezer
- * to continue until any currently running CPU hotplug operation gets
- * completed.
- * To modify the 'cpu_hotplug_disabled' flag, we need to acquire the
- * 'cpu_add_remove_lock'. And this same lock is also taken by the regular
- * CPU hotplug path and released only after it is complete. Thus, we
- * (and hence the freezer) will block here until any currently running CPU
- * hotplug operation gets completed.
- */
-void cpu_hotplug_disable_before_freeze(void)
-{
-	cpu_maps_update_begin();
-	cpu_hotplug_disabled = 1;
-	cpu_maps_update_done();
-}
-
-
-/*
- * When tasks have been thawed, re-enable regular CPU hotplug (which had been
- * disabled while beginning to freeze tasks).
- */
-void cpu_hotplug_enable_after_thaw(void)
-{
-	cpu_maps_update_begin();
-	cpu_hotplug_disabled = 0;
-	cpu_maps_update_done();
-}
-
-/*
  * When callbacks for CPU hotplug notifications are being executed, we must
  * ensure that the state of the system with respect to the tasks being frozen
  * or not, as reported by the notification, remains unchanged *throughout the
@@ -582,12 +573,12 @@ cpu_hotplug_pm_callback(struct notifier_block *nb,
 
 	case PM_SUSPEND_PREPARE:
 	case PM_HIBERNATION_PREPARE:
-		cpu_hotplug_disable_before_freeze();
+		cpu_hotplug_disable();
 		break;
 
 	case PM_POST_SUSPEND:
 	case PM_POST_HIBERNATION:
-		cpu_hotplug_enable_after_thaw();
+		cpu_hotplug_enable();
 		break;
 
 	default:
diff --git a/kernel/printk.c b/kernel/printk.c
index 66a2ea3..2d3fc0e 100644
--- a/kernel/printk.c
+++ b/kernel/printk.c
@@ -362,6 +362,53 @@ static void log_store(int facility, int level,
 	log_next_seq++;
 }
 
+#ifdef CONFIG_SECURITY_DMESG_RESTRICT
+int dmesg_restrict = 1;
+#else
+int dmesg_restrict;
+#endif
+
+static int syslog_action_restricted(int type)
+{
+	if (dmesg_restrict)
+		return 1;
+	/*
+	 * Unless restricted, we allow "read all" and "get buffer size"
+	 * for everybody.
+	 */
+	return type != SYSLOG_ACTION_READ_ALL &&
+	       type != SYSLOG_ACTION_SIZE_BUFFER;
+}
+
+static int check_syslog_permissions(int type, bool from_file)
+{
+	/*
+	 * If this is from /proc/kmsg and we've already opened it, then we've
+	 * already done the capabilities checks at open time.
+	 */
+	if (from_file && type != SYSLOG_ACTION_OPEN)
+		return 0;
+
+	if (syslog_action_restricted(type)) {
+		if (capable(CAP_SYSLOG))
+			return 0;
+		/*
+		 * For historical reasons, accept CAP_SYS_ADMIN too, with
+		 * a warning.
+		 */
+		if (capable(CAP_SYS_ADMIN)) {
+			pr_warn_once("%s (%d): Attempt to access syslog with "
+				     "CAP_SYS_ADMIN but no CAP_SYSLOG "
+				     "(deprecated).\n",
+				 current->comm, task_pid_nr(current));
+			return 0;
+		}
+		return -EPERM;
+	}
+	return security_syslog(type);
+}
+
+
 /* /dev/kmsg - userspace message inject/listen interface */
 struct devkmsg_user {
 	u64 seq;
@@ -618,7 +665,8 @@ static int devkmsg_open(struct inode *inode, struct file *file)
 	if ((file->f_flags & O_ACCMODE) == O_WRONLY)
 		return 0;
 
-	err = security_syslog(SYSLOG_ACTION_READ_ALL);
+	err = check_syslog_permissions(SYSLOG_ACTION_READ_ALL,
+				       SYSLOG_FROM_READER);
 	if (err)
 		return err;
 
@@ -794,45 +842,6 @@ static inline void boot_delay_msec(void)
 }
 #endif
 
-#ifdef CONFIG_SECURITY_DMESG_RESTRICT
-int dmesg_restrict = 1;
-#else
-int dmesg_restrict;
-#endif
-
-static int syslog_action_restricted(int type)
-{
-	if (dmesg_restrict)
-		return 1;
-	/* Unless restricted, we allow "read all" and "get buffer size" for everybody */
-	return type != SYSLOG_ACTION_READ_ALL && type != SYSLOG_ACTION_SIZE_BUFFER;
-}
-
-static int check_syslog_permissions(int type, bool from_file)
-{
-	/*
-	 * If this is from /proc/kmsg and we've already opened it, then we've
-	 * already done the capabilities checks at open time.
-	 */
-	if (from_file && type != SYSLOG_ACTION_OPEN)
-		return 0;
-
-	if (syslog_action_restricted(type)) {
-		if (capable(CAP_SYSLOG))
-			return 0;
-		/* For historical reasons, accept CAP_SYS_ADMIN too, with a warning */
-		if (capable(CAP_SYS_ADMIN)) {
-			printk_once(KERN_WARNING "%s (%d): "
-				 "Attempt to access syslog with CAP_SYS_ADMIN "
-				 "but no CAP_SYSLOG (deprecated).\n",
-				 current->comm, task_pid_nr(current));
-			return 0;
-		}
-		return -EPERM;
-	}
-	return 0;
-}
-
 #if defined(CONFIG_PRINTK_TIME)
 static bool printk_time = 1;
 #else
@@ -1229,7 +1238,7 @@ out:
 
 SYSCALL_DEFINE3(syslog, int, type, char __user *, buf, int, len)
 {
-	return do_syslog(type, buf, len, SYSLOG_FROM_CALL);
+	return do_syslog(type, buf, len, SYSLOG_FROM_READER);
 }
 
 static bool __read_mostly ignore_loglevel;
diff --git a/kernel/sys.c b/kernel/sys.c
index 61c086b7..7ce45e1 100644
--- a/kernel/sys.c
+++ b/kernel/sys.c
@@ -356,6 +356,29 @@ int unregister_reboot_notifier(struct notifier_block *nb)
 }
 EXPORT_SYMBOL(unregister_reboot_notifier);
 
+/* Add backwards compatibility for stable trees. */
+#ifndef PF_NO_SETAFFINITY
+#define PF_NO_SETAFFINITY		PF_THREAD_BOUND
+#endif
+
+static void migrate_to_reboot_cpu(void)
+{
+	/* The boot cpu is always logical cpu 0 */
+	int cpu = 0;
+
+	cpu_hotplug_disable();
+
+	/* Make certain the cpu I'm about to reboot on is online */
+	if (!cpu_online(cpu))
+		cpu = cpumask_first(cpu_online_mask);
+
+	/* Prevent races with other tasks migrating this task */
+	current->flags |= PF_NO_SETAFFINITY;
+
+	/* Make certain I only run on the appropriate processor */
+	set_cpus_allowed_ptr(current, cpumask_of(cpu));
+}
+
 /**
  *	kernel_restart - reboot the system
  *	@cmd: pointer to buffer containing command to execute for restart
@@ -367,7 +390,7 @@ EXPORT_SYMBOL(unregister_reboot_notifier);
 void kernel_restart(char *cmd)
 {
 	kernel_restart_prepare(cmd);
-	disable_nonboot_cpus();
+	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	if (!cmd)
 		printk(KERN_EMERG "Restarting system.\n");
@@ -394,7 +417,7 @@ static void kernel_shutdown_prepare(enum system_states state)
 void kernel_halt(void)
 {
 	kernel_shutdown_prepare(SYSTEM_HALT);
-	disable_nonboot_cpus();
+	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	printk(KERN_EMERG "System halted.\n");
 	kmsg_dump(KMSG_DUMP_HALT);
@@ -413,7 +436,7 @@ void kernel_power_off(void)
 	kernel_shutdown_prepare(SYSTEM_POWER_OFF);
 	if (pm_power_off_prepare)
 		pm_power_off_prepare();
-	disable_nonboot_cpus();
+	migrate_to_reboot_cpu();
 	syscore_shutdown();
 	printk(KERN_EMERG "Power down.\n");
 	kmsg_dump(KMSG_DUMP_POWEROFF);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 6fbd63a..a3e9083 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -672,7 +672,15 @@ __update_max_tr(struct trace_array *tr, struct task_struct *tsk, int cpu)
 
 	memcpy(max_data->comm, tsk->comm, TASK_COMM_LEN);
 	max_data->pid = tsk->pid;
-	max_data->uid = task_uid(tsk);
+	/*
+	 * If tsk == current, then use current_uid(), as that does not use
+	 * RCU. The irq tracer can be called out of RCU scope.
+	 */
+	if (tsk == current)
+		max_data->uid = current_uid();
+	else
+		max_data->uid = task_uid(tsk);
+
 	max_data->nice = tsk->static_prio - 20 - MAX_RT_PRIO;
 	max_data->policy = tsk->policy;
 	max_data->rt_priority = tsk->rt_priority;
diff --git a/mm/huge_memory.c b/mm/huge_memory.c
index 141dbb6..29301d4 100644
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -1954,7 +1954,12 @@ static void collapse_huge_page(struct mm_struct *mm,
 		pte_unmap(pte);
 		spin_lock(&mm->page_table_lock);
 		BUG_ON(!pmd_none(*pmd));
-		set_pmd_at(mm, address, pmd, _pmd);
+		/*
+		 * We can only use set_pmd_at when establishing
+		 * hugepmds and never for establishing regular pmds that
+		 * points to regular pagetables. Use pmd_populate for that
+		 */
+		pmd_populate(mm, pmd, pmd_pgtable(_pmd));
 		spin_unlock(&mm->page_table_lock);
 		anon_vma_unlock(vma->anon_vma);
 		goto out;
diff --git a/mm/hugetlb.c b/mm/hugetlb.c
index 0bf06e9..7e5ff99 100644
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -2825,7 +2825,7 @@ int hugetlb_fault(struct mm_struct *mm, struct vm_area_struct *vma,
 	if (ptep) {
 		entry = huge_ptep_get(ptep);
 		if (unlikely(is_hugetlb_entry_migration(entry))) {
-			migration_entry_wait(mm, (pmd_t *)ptep, address);
+			migration_entry_wait_huge(mm, ptep);
 			return 0;
 		} else if (unlikely(is_hugetlb_entry_hwpoisoned(entry)))
 			return VM_FAULT_HWPOISON_LARGE |
diff --git a/mm/memcontrol.c b/mm/memcontrol.c
index a6e2f81..a2c673a 100644
--- a/mm/memcontrol.c
+++ b/mm/memcontrol.c
@@ -3030,8 +3030,6 @@ __mem_cgroup_uncharge_common(struct page *page, enum charge_type ctype,
 	if (mem_cgroup_disabled())
 		return NULL;
 
-	VM_BUG_ON(PageSwapCache(page));
-
 	if (PageTransHuge(page)) {
 		nr_pages <<= compound_order(page);
 		VM_BUG_ON(!PageTransHuge(page));
@@ -3127,6 +3125,18 @@ void mem_cgroup_uncharge_page(struct page *page)
 	if (page_mapped(page))
 		return;
 	VM_BUG_ON(page->mapping && !PageAnon(page));
+	/*
+	 * If the page is in swap cache, uncharge should be deferred
+	 * to the swap path, which also properly accounts swap usage
+	 * and handles memcg lifetime.
+	 *
+	 * Note that this check is not stable and reclaim may add the
+	 * page to swap cache at any time after this.  However, if the
+	 * page is not in swap cache by the time page->mapcount hits
+	 * 0, there won't be any page table references to the swap
+	 * slot, and reclaim will free it and not actually write the
+	 * page to disk.
+	 */
 	if (PageSwapCache(page))
 		return;
 	__mem_cgroup_uncharge_common(page, MEM_CGROUP_CHARGE_TYPE_ANON, false);
diff --git a/mm/migrate.c b/mm/migrate.c
index 77ed2d7..733aa9f 100644
--- a/mm/migrate.c
+++ b/mm/migrate.c
@@ -146,7 +146,7 @@ static int remove_migration_pte(struct page *new, struct vm_area_struct *vma,
 	if (PageHuge(new))
 		pte = pte_mkhuge(pte);
 #endif
-	flush_cache_page(vma, addr, pte_pfn(pte));
+	flush_dcache_page(new);
 	set_pte_at(mm, addr, ptep, pte);
 
 	if (PageHuge(new)) {
@@ -181,15 +181,14 @@ static void remove_migration_ptes(struct page *old, struct page *new)
  * get to the page and wait until migration is finished.
  * When we return from this function the fault will be retried.
  */
-void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
-				unsigned long address)
+static void __migration_entry_wait(struct mm_struct *mm, pte_t *ptep,
+				spinlock_t *ptl)
 {
-	pte_t *ptep, pte;
-	spinlock_t *ptl;
+	pte_t pte;
 	swp_entry_t entry;
 	struct page *page;
 
-	ptep = pte_offset_map_lock(mm, pmd, address, &ptl);
+	spin_lock(ptl);
 	pte = *ptep;
 	if (!is_swap_pte(pte))
 		goto out;
@@ -217,6 +216,20 @@ out:
 	pte_unmap_unlock(ptep, ptl);
 }
 
+void migration_entry_wait(struct mm_struct *mm, pmd_t *pmd,
+				unsigned long address)
+{
+	spinlock_t *ptl = pte_lockptr(mm, pmd);
+	pte_t *ptep = pte_offset_map(pmd, address);
+	__migration_entry_wait(mm, ptep, ptl);
+}
+
+void migration_entry_wait_huge(struct mm_struct *mm, pte_t *pte)
+{
+	spinlock_t *ptl = &(mm)->page_table_lock;
+	__migration_entry_wait(mm, pte, ptl);
+}
+
 #ifdef CONFIG_BLOCK
 /* Returns true if all buffers are successfully locked */
 static bool buffer_migrate_lock_buffers(struct buffer_head *head,
diff --git a/mm/pagewalk.c b/mm/pagewalk.c
index 6c118d0..449cad6 100644
--- a/mm/pagewalk.c
+++ b/mm/pagewalk.c
@@ -127,28 +127,7 @@ static int walk_hugetlb_range(struct vm_area_struct *vma,
 	return 0;
 }
 
-static struct vm_area_struct* hugetlb_vma(unsigned long addr, struct mm_walk *walk)
-{
-	struct vm_area_struct *vma;
-
-	/* We don't need vma lookup at all. */
-	if (!walk->hugetlb_entry)
-		return NULL;
-
-	VM_BUG_ON(!rwsem_is_locked(&walk->mm->mmap_sem));
-	vma = find_vma(walk->mm, addr);
-	if (vma && vma->vm_start <= addr && is_vm_hugetlb_page(vma))
-		return vma;
-
-	return NULL;
-}
-
 #else /* CONFIG_HUGETLB_PAGE */
-static struct vm_area_struct* hugetlb_vma(unsigned long addr, struct mm_walk *walk)
-{
-	return NULL;
-}
-
 static int walk_hugetlb_range(struct vm_area_struct *vma,
 			      unsigned long addr, unsigned long end,
 			      struct mm_walk *walk)
@@ -198,30 +177,53 @@ int walk_page_range(unsigned long addr, unsigned long end,
 	if (!walk->mm)
 		return -EINVAL;
 
+	VM_BUG_ON(!rwsem_is_locked(&walk->mm->mmap_sem));
+
 	pgd = pgd_offset(walk->mm, addr);
 	do {
-		struct vm_area_struct *vma;
+		struct vm_area_struct *vma = NULL;
 
 		next = pgd_addr_end(addr, end);
 
 		/*
-		 * handle hugetlb vma individually because pagetable walk for
-		 * the hugetlb page is dependent on the architecture and
-		 * we can't handled it in the same manner as non-huge pages.
+		 * This function was not intended to be vma based.
+		 * But there are vma special cases to be handled:
+		 * - hugetlb vma's
+		 * - VM_PFNMAP vma's
 		 */
-		vma = hugetlb_vma(addr, walk);
+		vma = find_vma(walk->mm, addr);
 		if (vma) {
-			if (vma->vm_end < next)
+			/*
+			 * There are no page structures backing a VM_PFNMAP
+			 * range, so do not allow split_huge_page_pmd().
+			 */
+			if ((vma->vm_start <= addr) &&
+			    (vma->vm_flags & VM_PFNMAP)) {
 				next = vma->vm_end;
+				pgd = pgd_offset(walk->mm, next);
+				continue;
+			}
 			/*
-			 * Hugepage is very tightly coupled with vma, so
-			 * walk through hugetlb entries within a given vma.
+			 * Handle hugetlb vma individually because pagetable
+			 * walk for the hugetlb page is dependent on the
+			 * architecture and we can't handled it in the same
+			 * manner as non-huge pages.
 			 */
-			err = walk_hugetlb_range(vma, addr, next, walk);
-			if (err)
-				break;
-			pgd = pgd_offset(walk->mm, next);
-			continue;
+			if (walk->hugetlb_entry && (vma->vm_start <= addr) &&
+			    is_vm_hugetlb_page(vma)) {
+				if (vma->vm_end < next)
+					next = vma->vm_end;
+				/*
+				 * Hugepage is very tightly coupled with vma,
+				 * so walk through hugetlb entries within a
+				 * given vma.
+				 */
+				err = walk_hugetlb_range(vma, addr, next, walk);
+				if (err)
+					break;
+				pgd = pgd_offset(walk->mm, next);
+				continue;
+			}
 		}
 
 		if (pgd_none_or_clear_bad(pgd)) {
diff --git a/mm/swap_state.c b/mm/swap_state.c
index 0cb36fb..f854fbd 100644
--- a/mm/swap_state.c
+++ b/mm/swap_state.c
@@ -314,8 +314,24 @@ struct page *read_swap_cache_async(swp_entry_t entry, gfp_t gfp_mask,
 		 * Swap entry may have been freed since our caller observed it.
 		 */
 		err = swapcache_prepare(entry);
-		if (err == -EEXIST) {	/* seems racy */
+		if (err == -EEXIST) {
 			radix_tree_preload_end();
+			/*
+			 * We might race against get_swap_page() and stumble
+			 * across a SWAP_HAS_CACHE swap_map entry whose page
+			 * has not been brought into the swapcache yet, while
+			 * the other end is scheduled away waiting on discard
+			 * I/O completion at scan_swap_map().
+			 *
+			 * In order to avoid turning this transitory state
+			 * into a permanent loop around this -EEXIST case
+			 * if !CONFIG_PREEMPT and the I/O completion happens
+			 * to be waiting on the CPU waitqueue where we are now
+			 * busy looping, we just conditionally invoke the
+			 * scheduler here, if there are some more important
+			 * tasks to run.
+			 */
+			cond_resched();
 			continue;
 		}
 		if (err) {		/* swp entry is obsolete ? */
diff --git a/net/bluetooth/hci_core.c b/net/bluetooth/hci_core.c
index 0b997c8..d1636e4 100644
--- a/net/bluetooth/hci_core.c
+++ b/net/bluetooth/hci_core.c
@@ -1076,11 +1076,15 @@ static const struct rfkill_ops hci_rfkill_ops = {
 static void hci_power_on(struct work_struct *work)
 {
 	struct hci_dev *hdev = container_of(work, struct hci_dev, power_on);
+	int err;
 
 	BT_DBG("%s", hdev->name);
 
-	if (hci_dev_open(hdev->id) < 0)
+	err = hci_dev_open(hdev->id);
+	if (err < 0) {
+		mgmt_set_powered_failed(hdev, err);
 		return;
+	}
 
 	if (test_bit(HCI_AUTO_OFF, &hdev->dev_flags))
 		schedule_delayed_work(&hdev->power_off, HCI_AUTO_OFF_TIMEOUT);
diff --git a/net/bluetooth/mgmt.c b/net/bluetooth/mgmt.c
index 534250a..0fef923 100644
--- a/net/bluetooth/mgmt.c
+++ b/net/bluetooth/mgmt.c
@@ -2908,6 +2908,27 @@ int mgmt_powered(struct hci_dev *hdev, u8 powered)
 	return err;
 }
 
+int mgmt_set_powered_failed(struct hci_dev *hdev, int err)
+{
+	struct pending_cmd *cmd;
+	u8 status;
+
+	cmd = mgmt_pending_find(MGMT_OP_SET_POWERED, hdev);
+	if (!cmd)
+		return -ENOENT;
+
+	if (err == -ERFKILL)
+		status = MGMT_STATUS_RFKILLED;
+	else
+		status = MGMT_STATUS_FAILED;
+
+	err = cmd_status(cmd->sk, hdev->id, MGMT_OP_SET_POWERED, status);
+
+	mgmt_pending_remove(cmd);
+
+	return err;
+}
+
 int mgmt_discoverable(struct hci_dev *hdev, u8 discoverable)
 {
 	struct cmd_lookup match = { NULL, hdev };
diff --git a/net/ceph/auth.c b/net/ceph/auth.c
index b4bf4ac..6b923bc 100644
--- a/net/ceph/auth.c
+++ b/net/ceph/auth.c
@@ -47,6 +47,7 @@ struct ceph_auth_client *ceph_auth_init(const char *name, const struct ceph_cryp
 	if (!ac)
 		goto out;
 
+	mutex_init(&ac->mutex);
 	ac->negotiating = true;
 	if (name)
 		ac->name = name;
@@ -73,10 +74,12 @@ void ceph_auth_destroy(struct ceph_auth_client *ac)
  */
 void ceph_auth_reset(struct ceph_auth_client *ac)
 {
+	mutex_lock(&ac->mutex);
 	dout("auth_reset %p\n", ac);
 	if (ac->ops && !ac->negotiating)
 		ac->ops->reset(ac);
 	ac->negotiating = true;
+	mutex_unlock(&ac->mutex);
 }
 
 int ceph_entity_name_encode(const char *name, void **p, void *end)
@@ -102,6 +105,7 @@ int ceph_auth_build_hello(struct ceph_auth_client *ac, void *buf, size_t len)
 	int i, num;
 	int ret;
 
+	mutex_lock(&ac->mutex);
 	dout("auth_build_hello\n");
 	monhdr->have_version = 0;
 	monhdr->session_mon = cpu_to_le16(-1);
@@ -122,15 +126,19 @@ int ceph_auth_build_hello(struct ceph_auth_client *ac, void *buf, size_t len)
 
 	ret = ceph_entity_name_encode(ac->name, &p, end);
 	if (ret < 0)
-		return ret;
+		goto out;
 	ceph_decode_need(&p, end, sizeof(u64), bad);
 	ceph_encode_64(&p, ac->global_id);
 
 	ceph_encode_32(&lenp, p - lenp - sizeof(u32));
-	return p - buf;
+	ret = p - buf;
+out:
+	mutex_unlock(&ac->mutex);
+	return ret;
 
 bad:
-	return -ERANGE;
+	ret = -ERANGE;
+	goto out;
 }
 
 static int ceph_build_auth_request(struct ceph_auth_client *ac,
@@ -151,11 +159,13 @@ static int ceph_build_auth_request(struct ceph_auth_client *ac,
 	if (ret < 0) {
 		pr_err("error %d building auth method %s request\n", ret,
 		       ac->ops->name);
-		return ret;
+		goto out;
 	}
 	dout(" built request %d bytes\n", ret);
 	ceph_encode_32(&p, ret);
-	return p + ret - msg_buf;
+	ret = p + ret - msg_buf;
+out:
+	return ret;
 }
 
 /*
@@ -176,6 +186,7 @@ int ceph_handle_auth_reply(struct ceph_auth_client *ac,
 	int result_msg_len;
 	int ret = -EINVAL;
 
+	mutex_lock(&ac->mutex);
 	dout("handle_auth_reply %p %p\n", p, end);
 	ceph_decode_need(&p, end, sizeof(u32) * 3 + sizeof(u64), bad);
 	protocol = ceph_decode_32(&p);
@@ -227,33 +238,103 @@ int ceph_handle_auth_reply(struct ceph_auth_client *ac,
 
 	ret = ac->ops->handle_reply(ac, result, payload, payload_end);
 	if (ret == -EAGAIN) {
-		return ceph_build_auth_request(ac, reply_buf, reply_len);
+		ret = ceph_build_auth_request(ac, reply_buf, reply_len);
 	} else if (ret) {
 		pr_err("auth method '%s' error %d\n", ac->ops->name, ret);
-		return ret;
 	}
-	return 0;
 
-bad:
-	pr_err("failed to decode auth msg\n");
 out:
+	mutex_unlock(&ac->mutex);
 	return ret;
+
+bad:
+	pr_err("failed to decode auth msg\n");
+	ret = -EINVAL;
+	goto out;
 }
 
 int ceph_build_auth(struct ceph_auth_client *ac,
 		    void *msg_buf, size_t msg_len)
 {
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
 	if (!ac->protocol)
-		return ceph_auth_build_hello(ac, msg_buf, msg_len);
-	BUG_ON(!ac->ops);
-	if (ac->ops->should_authenticate(ac))
-		return ceph_build_auth_request(ac, msg_buf, msg_len);
-	return 0;
+		ret = ceph_auth_build_hello(ac, msg_buf, msg_len);
+	else if (ac->ops->should_authenticate(ac))
+		ret = ceph_build_auth_request(ac, msg_buf, msg_len);
+	mutex_unlock(&ac->mutex);
+	return ret;
 }
 
 int ceph_auth_is_authenticated(struct ceph_auth_client *ac)
 {
-	if (!ac->ops)
-		return 0;
-	return ac->ops->is_authenticated(ac);
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
+	if (ac->ops)
+		ret = ac->ops->is_authenticated(ac);
+	mutex_unlock(&ac->mutex);
+	return ret;
+}
+EXPORT_SYMBOL(ceph_auth_is_authenticated);
+
+int ceph_auth_create_authorizer(struct ceph_auth_client *ac,
+				int peer_type,
+				struct ceph_auth_handshake *auth)
+{
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
+	if (ac->ops && ac->ops->create_authorizer)
+		ret = ac->ops->create_authorizer(ac, peer_type, auth);
+	mutex_unlock(&ac->mutex);
+	return ret;
+}
+EXPORT_SYMBOL(ceph_auth_create_authorizer);
+
+void ceph_auth_destroy_authorizer(struct ceph_auth_client *ac,
+				  struct ceph_authorizer *a)
+{
+	mutex_lock(&ac->mutex);
+	if (ac->ops && ac->ops->destroy_authorizer)
+		ac->ops->destroy_authorizer(ac, a);
+	mutex_unlock(&ac->mutex);
+}
+EXPORT_SYMBOL(ceph_auth_destroy_authorizer);
+
+int ceph_auth_update_authorizer(struct ceph_auth_client *ac,
+				int peer_type,
+				struct ceph_auth_handshake *a)
+{
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
+	if (ac->ops && ac->ops->update_authorizer)
+		ret = ac->ops->update_authorizer(ac, peer_type, a);
+	mutex_unlock(&ac->mutex);
+	return ret;
+}
+EXPORT_SYMBOL(ceph_auth_update_authorizer);
+
+int ceph_auth_verify_authorizer_reply(struct ceph_auth_client *ac,
+				      struct ceph_authorizer *a, size_t len)
+{
+	int ret = 0;
+
+	mutex_lock(&ac->mutex);
+	if (ac->ops && ac->ops->verify_authorizer_reply)
+		ret = ac->ops->verify_authorizer_reply(ac, a, len);
+	mutex_unlock(&ac->mutex);
+	return ret;
+}
+EXPORT_SYMBOL(ceph_auth_verify_authorizer_reply);
+
+void ceph_auth_invalidate_authorizer(struct ceph_auth_client *ac, int peer_type)
+{
+	mutex_lock(&ac->mutex);
+	if (ac->ops && ac->ops->invalidate_authorizer)
+		ac->ops->invalidate_authorizer(ac, peer_type);
+	mutex_unlock(&ac->mutex);
 }
+EXPORT_SYMBOL(ceph_auth_invalidate_authorizer);
diff --git a/net/ceph/auth_x.c b/net/ceph/auth_x.c
index a16bf14..96238ba 100644
--- a/net/ceph/auth_x.c
+++ b/net/ceph/auth_x.c
@@ -298,6 +298,7 @@ static int ceph_x_build_authorizer(struct ceph_auth_client *ac,
 			return -ENOMEM;
 	}
 	au->service = th->service;
+	au->secret_id = th->secret_id;
 
 	msg_a = au->buf->vec.iov_base;
 	msg_a->struct_v = 1;
@@ -555,6 +556,26 @@ static int ceph_x_create_authorizer(
 	return 0;
 }
 
+static int ceph_x_update_authorizer(
+	struct ceph_auth_client *ac, int peer_type,
+	struct ceph_auth_handshake *auth)
+{
+	struct ceph_x_authorizer *au;
+	struct ceph_x_ticket_handler *th;
+
+	th = get_ticket_handler(ac, peer_type);
+	if (IS_ERR(th))
+		return PTR_ERR(th);
+
+	au = (struct ceph_x_authorizer *)auth->authorizer;
+	if (au->secret_id < th->secret_id) {
+		dout("ceph_x_update_authorizer service %u secret %llu < %llu\n",
+		     au->service, au->secret_id, th->secret_id);
+		return ceph_x_build_authorizer(ac, th, au);
+	}
+	return 0;
+}
+
 static int ceph_x_verify_authorizer_reply(struct ceph_auth_client *ac,
 					  struct ceph_authorizer *a, size_t len)
 {
@@ -630,7 +651,7 @@ static void ceph_x_invalidate_authorizer(struct ceph_auth_client *ac,
 
 	th = get_ticket_handler(ac, peer_type);
 	if (!IS_ERR(th))
-		remove_ticket_handler(ac, th);
+		memset(&th->validity, 0, sizeof(th->validity));
 }
 
 
@@ -641,6 +662,7 @@ static const struct ceph_auth_client_ops ceph_x_ops = {
 	.build_request = ceph_x_build_request,
 	.handle_reply = ceph_x_handle_reply,
 	.create_authorizer = ceph_x_create_authorizer,
+	.update_authorizer = ceph_x_update_authorizer,
 	.verify_authorizer_reply = ceph_x_verify_authorizer_reply,
 	.destroy_authorizer = ceph_x_destroy_authorizer,
 	.invalidate_authorizer = ceph_x_invalidate_authorizer,
diff --git a/net/ceph/auth_x.h b/net/ceph/auth_x.h
index f459e93..c5a058d 100644
--- a/net/ceph/auth_x.h
+++ b/net/ceph/auth_x.h
@@ -29,6 +29,7 @@ struct ceph_x_authorizer {
 	struct ceph_buffer *buf;
 	unsigned int service;
 	u64 nonce;
+	u64 secret_id;
 	char reply_buf[128];  /* big enough for encrypted blob */
 };
 
diff --git a/net/ceph/messenger.c b/net/ceph/messenger.c
index 3ef1759..c245379 100644
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1552,7 +1552,6 @@ static int process_connect(struct ceph_connection *con)
 			con->error_msg = "connect authorization failure";
 			return -1;
 		}
-		con->auth_retry = 1;
 		con_out_kvec_reset(con);
 		ret = prepare_write_connect(con);
 		if (ret < 0)
@@ -1637,7 +1636,7 @@ static int process_connect(struct ceph_connection *con)
 
 		BUG_ON(con->state != CON_STATE_NEGOTIATING);
 		con->state = CON_STATE_OPEN;
-
+		con->auth_retry = 0;    /* we authenticated; clear flag */
 		con->peer_global_seq = le32_to_cpu(con->in_reply.global_seq);
 		con->connect_seq++;
 		con->peer_features = server_feat;
diff --git a/net/ceph/mon_client.c b/net/ceph/mon_client.c
index 900ea0f..8a9235d 100644
--- a/net/ceph/mon_client.c
+++ b/net/ceph/mon_client.c
@@ -737,7 +737,7 @@ static void delayed_work(struct work_struct *work)
 
 		__validate_auth(monc);
 
-		if (monc->auth->ops->is_authenticated(monc->auth))
+		if (ceph_auth_is_authenticated(monc->auth))
 			__send_subscribe(monc);
 	}
 	__schedule_delayed(monc);
@@ -893,8 +893,7 @@ static void handle_auth_reply(struct ceph_mon_client *monc,
 
 	mutex_lock(&monc->mutex);
 	had_debugfs_info = have_debugfs_info(monc);
-	if (monc->auth->ops)
-		was_auth = monc->auth->ops->is_authenticated(monc->auth);
+	was_auth = ceph_auth_is_authenticated(monc->auth);
 	monc->pending_auth = 0;
 	ret = ceph_handle_auth_reply(monc->auth, msg->front.iov_base,
 				     msg->front.iov_len,
@@ -905,7 +904,7 @@ static void handle_auth_reply(struct ceph_mon_client *monc,
 		wake_up_all(&monc->client->auth_wq);
 	} else if (ret > 0) {
 		__send_prepared_auth_request(monc, ret);
-	} else if (!was_auth && monc->auth->ops->is_authenticated(monc->auth)) {
+	} else if (!was_auth && ceph_auth_is_authenticated(monc->auth)) {
 		dout("authenticated, starting session\n");
 
 		monc->client->msgr.inst.name.type = CEPH_ENTITY_TYPE_CLIENT;
diff --git a/net/ceph/osd_client.c b/net/ceph/osd_client.c
index f7b56e2..c9b179d 100644
--- a/net/ceph/osd_client.c
+++ b/net/ceph/osd_client.c
@@ -675,8 +675,7 @@ static void put_osd(struct ceph_osd *osd)
 	if (atomic_dec_and_test(&osd->o_ref) && osd->o_auth.authorizer) {
 		struct ceph_auth_client *ac = osd->o_osdc->client->monc.auth;
 
-		if (ac->ops && ac->ops->destroy_authorizer)
-			ac->ops->destroy_authorizer(ac, osd->o_auth.authorizer);
+		ceph_auth_destroy_authorizer(ac, osd->o_auth.authorizer);
 		kfree(osd);
 	}
 }
@@ -2154,13 +2153,17 @@ static struct ceph_auth_handshake *get_authorizer(struct ceph_connection *con,
 	struct ceph_auth_handshake *auth = &o->o_auth;
 
 	if (force_new && auth->authorizer) {
-		if (ac->ops && ac->ops->destroy_authorizer)
-			ac->ops->destroy_authorizer(ac, auth->authorizer);
+		ceph_auth_destroy_authorizer(ac, auth->authorizer);
 		auth->authorizer = NULL;
 	}
-	if (!auth->authorizer && ac->ops && ac->ops->create_authorizer) {
-		int ret = ac->ops->create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
-							auth);
+	if (!auth->authorizer) {
+		int ret = ceph_auth_create_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+						      auth);
+		if (ret)
+			return ERR_PTR(ret);
+	} else {
+		int ret = ceph_auth_update_authorizer(ac, CEPH_ENTITY_TYPE_OSD,
+						     auth);
 		if (ret)
 			return ERR_PTR(ret);
 	}
@@ -2176,11 +2179,7 @@ static int verify_authorizer_reply(struct ceph_connection *con, int len)
 	struct ceph_osd_client *osdc = o->o_osdc;
 	struct ceph_auth_client *ac = osdc->client->monc.auth;
 
-	/*
-	 * XXX If ac->ops or ac->ops->verify_authorizer_reply is null,
-	 * XXX which do we do:  succeed or fail?
-	 */
-	return ac->ops->verify_authorizer_reply(ac, o->o_auth.authorizer, len);
+	return ceph_auth_verify_authorizer_reply(ac, o->o_auth.authorizer, len);
 }
 
 static int invalidate_authorizer(struct ceph_connection *con)
@@ -2189,9 +2188,7 @@ static int invalidate_authorizer(struct ceph_connection *con)
 	struct ceph_osd_client *osdc = o->o_osdc;
 	struct ceph_auth_client *ac = osdc->client->monc.auth;
 
-	if (ac->ops && ac->ops->invalidate_authorizer)
-		ac->ops->invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
-
+	ceph_auth_invalidate_authorizer(ac, CEPH_ENTITY_TYPE_OSD);
 	return ceph_monc_validate_auth(&osdc->client->monc);
 }
 
diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index c93d395..9217a94 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -1521,6 +1521,15 @@ void ieee80211_remove_interfaces(struct ieee80211_local *local)
 
 	ASSERT_RTNL();
 
+	/*
+	 * Close all AP_VLAN interfaces first, as otherwise they
+	 * might be closed while the AP interface they belong to
+	 * is closed, causing unregister_netdevice_many() to crash.
+	 */
+	list_for_each_entry(sdata, &local->interfaces, list)
+		if (sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
+			dev_close(sdata->dev);
+
 	mutex_lock(&local->iflist_mtx);
 	list_for_each_entry_safe(sdata, tmp, &local->interfaces, list) {
 		list_del(&sdata->list);
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 37fe5ce..bd11c1c 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -2813,6 +2813,9 @@ static int prepare_for_handlers(struct ieee80211_rx_data *rx,
 			 * and location updates. Note that mac80211
 			 * itself never looks at these frames.
 			 */
+			if (!multicast &&
+			    !ether_addr_equal(sdata->vif.addr, hdr->addr1))
+				return 0;
 			if (ieee80211_is_public_action(hdr, skb->len))
 				return 1;
 			if (!ieee80211_is_beacon(hdr->frame_control))
diff --git a/net/sunrpc/sched.c b/net/sunrpc/sched.c
index cd09810..0e09708 100644
--- a/net/sunrpc/sched.c
+++ b/net/sunrpc/sched.c
@@ -305,11 +305,17 @@ EXPORT_SYMBOL_GPL(__rpc_wait_for_completion_task);
  * Note: If the task is ASYNC, and is being made runnable after sitting on an
  * rpc_wait_queue, this must be called with the queue spinlock held to protect
  * the wait queue operation.
+ * Note the ordering of rpc_test_and_set_running() and rpc_clear_queued(),
+ * which is needed to ensure that __rpc_execute() doesn't loop (due to the
+ * lockless RPC_IS_QUEUED() test) before we've had a chance to test
+ * the RPC_TASK_RUNNING flag.
  */
 static void rpc_make_runnable(struct rpc_task *task)
 {
+	bool need_wakeup = !rpc_test_and_set_running(task);
+
 	rpc_clear_queued(task);
-	if (rpc_test_and_set_running(task))
+	if (!need_wakeup)
 		return;
 	if (RPC_IS_ASYNC(task)) {
 		INIT_WORK(&task->u.tk_work, rpc_async_schedule);
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 5797032..a10901b 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -572,17 +572,21 @@ int wiphy_register(struct wiphy *wiphy)
 	 * cfg80211_mutex lock
 	 */
 	res = rfkill_register(rdev->rfkill);
-	if (res)
-		goto out_rm_dev;
+	if (res) {
+		device_del(&rdev->wiphy.dev);
+
+		mutex_lock(&cfg80211_mutex);
+		debugfs_remove_recursive(rdev->wiphy.debugfsdir);
+		list_del_rcu(&rdev->list);
+		wiphy_regulatory_deregister(wiphy);
+		mutex_unlock(&cfg80211_mutex);
+		return res;
+	}
 
 	rtnl_lock();
 	rdev->wiphy.registered = true;
 	rtnl_unlock();
 	return 0;
-
-out_rm_dev:
-	device_del(&rdev->wiphy.dev);
-	return res;
 }
 EXPORT_SYMBOL(wiphy_register);
 
diff --git a/net/wireless/sme.c b/net/wireless/sme.c
index 6f39cb8..1015221 100644
--- a/net/wireless/sme.c
+++ b/net/wireless/sme.c
@@ -222,6 +222,9 @@ void cfg80211_conn_work(struct work_struct *work)
 	mutex_lock(&rdev->devlist_mtx);
 
 	list_for_each_entry(wdev, &rdev->wdev_list, list) {
+		if (!wdev->netdev)
+			continue;
+
 		wdev_lock(wdev);
 		if (!netif_running(wdev->netdev)) {
 			wdev_unlock(wdev);
diff --git a/sound/soc/codecs/cs42l52.c b/sound/soc/codecs/cs42l52.c
index d8cfcc7..d34aa42 100644
--- a/sound/soc/codecs/cs42l52.c
+++ b/sound/soc/codecs/cs42l52.c
@@ -87,7 +87,7 @@ static const struct reg_default cs42l52_reg_defaults[] = {
 	{ CS42L52_BEEP_VOL, 0x00 },	/* r1D Beep Volume off Time */
 	{ CS42L52_BEEP_TONE_CTL, 0x00 },	/* r1E Beep Tone Cfg. */
 	{ CS42L52_TONE_CTL, 0x00 },	/* r1F Tone Ctl */
-	{ CS42L52_MASTERA_VOL, 0x88 },	/* r20 Master A Volume */
+	{ CS42L52_MASTERA_VOL, 0x00 },	/* r20 Master A Volume */
 	{ CS42L52_MASTERB_VOL, 0x00 },	/* r21 Master B Volume */
 	{ CS42L52_HPA_VOL, 0x00 },	/* r22 Headphone A Volume */
 	{ CS42L52_HPB_VOL, 0x00 },	/* r23 Headphone B Volume */
diff --git a/sound/usb/mixer.c b/sound/usb/mixer.c
index 900bf42..9a9da0a 100644
--- a/sound/usb/mixer.c
+++ b/sound/usb/mixer.c
@@ -842,6 +842,7 @@ static void volume_control_quirks(struct usb_mixer_elem_info *cval,
 	case USB_ID(0x046d, 0x0808):
 	case USB_ID(0x046d, 0x0809):
 	case USB_ID(0x046d, 0x081d): /* HD Webcam c510 */
+	case USB_ID(0x046d, 0x0825): /* HD Webcam c270 */
 	case USB_ID(0x046d, 0x0991):
 	/* Most audio usb devices lie about volume resolution.
 	 * Most Logitech webcams have res = 384.
diff --git a/sound/usb/quirks-table.h b/sound/usb/quirks-table.h
index d73ac9b..5b9381f 100644
--- a/sound/usb/quirks-table.h
+++ b/sound/usb/quirks-table.h
@@ -157,7 +157,13 @@
 	.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL
 },
 {
-	USB_DEVICE(0x046d, 0x0990),
+	.match_flags = USB_DEVICE_ID_MATCH_DEVICE |
+		       USB_DEVICE_ID_MATCH_INT_CLASS |
+		       USB_DEVICE_ID_MATCH_INT_SUBCLASS,
+	.idVendor = 0x046d,
+	.idProduct = 0x0990,
+	.bInterfaceClass = USB_CLASS_AUDIO,
+	.bInterfaceSubClass = USB_SUBCLASS_AUDIOCONTROL,
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.vendor_name = "Logitech, Inc.",
 		.product_name = "QuickCam Pro 9000",
@@ -1622,7 +1628,11 @@ YAMAHA_DEVICE(0x7010, "UB99"),
 	USB_DEVICE_VENDOR_SPEC(0x0582, 0x0108),
 	.driver_info = (unsigned long) & (const struct snd_usb_audio_quirk) {
 		.ifnum = 0,
-		.type = QUIRK_MIDI_STANDARD_INTERFACE
+		.type = QUIRK_MIDI_FIXED_ENDPOINT,
+		.data = & (const struct snd_usb_midi_endpoint_info) {
+			.out_cables = 0x0007,
+			.in_cables  = 0x0007
+		}
 	}
 },
 {
diff --git a/tools/perf/scripts/python/net_dropmonitor.py b/tools/perf/scripts/python/net_dropmonitor.py
index a4ffc95..4c11605 100755
--- a/tools/perf/scripts/python/net_dropmonitor.py
+++ b/tools/perf/scripts/python/net_dropmonitor.py
@@ -40,9 +40,9 @@ def get_kallsyms_table():
 
 def get_sym(sloc):
 	loc = int(sloc)
-	for i in kallsyms:
-		if (i['loc'] >= loc):
-			return (i['name'], i['loc']-loc)
+	for i in kallsyms[::-1]:
+		if loc >= i['loc']:
+			return (i['name'], loc - i['loc'])
 	return (None, 0)
 
 def print_drop_table():
@@ -64,7 +64,7 @@ def trace_end():
 
 # called from perf, when it finds a correspoinding event
 def skb__kfree_skb(name, context, cpu, sec, nsec, pid, comm,
-			skbaddr, protocol, location):
+		   skbaddr, location, protocol):
 	slocation = str(location)
 	try:
 		drop_log[slocation] = drop_log[slocation] + 1