[PATCH 5.15 000/155] 5.15.124-rc1 review

[PATCH 5.15 000/155] 5.15.124-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 5.15.124 release.
There are 155 patches in this series, all will be posted as a response
to this one.  If anyone has any issues with these being applied, please
let me know.

Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
Anything received after that time might be too late.

The whole patch series can be found in one patch at:
	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
or in the git tree and branch at:
	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
and the diffstat can be found below.

thanks,

greg k-h

-------------
Pseudo-Shortlog of commits:

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 5.15.124-rc1

Matthieu Baerts <matthieu.baerts@tessares.net>
    selftests: mptcp: join: only check for ip6tables if needed

Thomas Petazzoni <thomas.petazzoni@bootlin.com>
    ASoC: cs42l51: fix driver to properly autoload with automatic module loading

Jens Axboe <axboe@kernel.dk>
    io_uring: treat -EAGAIN for REQ_F_NOWAIT as final for io-wq

Matthieu Baerts <matthieu.baerts@tessares.net>
    selftests: mptcp: sockopt: use 'iptables-legacy' if available

Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    cpufreq: intel_pstate: Drop ACPI _PSS states table patching

Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily

Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    ACPI: processor: perflib: Use the "no limit" frequency QoS

Steven Rostedt (Google) <rostedt@goodmis.org>
    tracing: Fix trace_event_raw_event_synth() if else statement

Ilya Dryomov <idryomov@gmail.com>
    rbd: retrieve and check lock owner twice before blocklisting

Ilya Dryomov <idryomov@gmail.com>
    rbd: harden get_lock_owner_info() a bit

Ilya Dryomov <idryomov@gmail.com>
    rbd: make get_lock_owner_info() return a single locker or NULL

Joe Thornber <ejt@redhat.com>
    dm cache policy smq: ensure IO doesn't prevent cleaner policy progress

Xiubo Li <xiubli@redhat.com>
    ceph: never send metrics if disable_send_metrics is set

Mark Brown <broonie@kernel.org>
    ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register

Stefan Haberland <sth@linux.ibm.com>
    s390/dasd: fix hanging device after quiesce/resume

Jason Wang <jasowang@redhat.com>
    virtio-net: fix race between set queues and probe

Sean Christopherson <seanjc@google.com>
    KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid

Peter Zijlstra <peterz@infradead.org>
    locking/rtmutex: Fix task->pi_waiters integrity

Marc Zyngier <maz@kernel.org>
    irqchip/gic-v4.1: Properly lock VPEs when doing a directLPI invalidation

Jonas Gorski <jonas.gorski@gmail.com>
    irq-bcm6345-l1: Do not assume a fixed block to cpu mapping

Alexander Steffen <Alexander.Steffen@infineon.com>
    tpm_tis: Explicitly check for error code

Trond Myklebust <trond.myklebust@hammerspace.com>
    nfsd: Remove incorrect check in nfsd4_validate_stateid

Christian Brauner <brauner@kernel.org>
    file: always lock position for FMODE_ATOMIC_POS

Filipe Manana <fdmanana@suse.com>
    btrfs: check for commit error at btrfs_attach_transaction_barrier()

Filipe Manana <fdmanana@suse.com>
    btrfs: check if the transaction was aborted at btrfs_wait_for_commit()

Gilles Buloz <Gilles.Buloz@kontron.com>
    hwmon: (nct7802) Fix for temp6 (PECI1) processed even if PECI1 disabled

Baskaran Kannan <Baski.Kannan@amd.com>
    hwmon: (k10temp) Enable AMD3255 Proc to show negative temperature

Luka Guzenko <l.guzenko@web.de>
    ALSA: hda/relatek: Enable Mute LED on HP 250 G8

Oliver Neukum <oneukum@suse.com>
    Revert "xhci: add quirk for host controllers that don't update endpoint DCS"

Chaoyuan Peng <hedonistsmith@gmail.com>
    tty: n_gsm: fix UAF in gsm_cleanup_mux

Zhang Shurong <zhang_shurong@foxmail.com>
    staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()

Larry Finger <Larry.Finger@lwfinger.net>
    staging: r8712: Fix memory leak in _r8712_init_xmit_priv()

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Documentation: security-bugs.rst: clarify CVE handling

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Documentation: security-bugs.rst: update preferences when dealing with the linux-distros group

Dan Carpenter <dan.carpenter@linaro.org>
    Revert "usb: xhci: tegra: Fix error check"

Ricardo Ribalda <ribalda@chromium.org>
    usb: xhci-mtk: set the dma max_seg_size

Frank Li <Frank.Li@nxp.com>
    usb: cdns3: fix incorrect calculation of ep_buf_size when more than one config

Łukasz Bartosik <lb@semihalf.com>
    USB: quirks: add quirk for Focusrite Scarlett

Guiting Shen <aarongt.shen@gmail.com>
    usb: ohci-at91: Fix the unhandle interrupt when resume

Jisheng Zhang <jszhang@kernel.org>
    usb: dwc3: don't reset device side if dwc3 was configured as host-only

Gratian Crisan <gratian.crisan@ni.com>
    usb: dwc3: pci: skip BYT GPIO lookup table for hardwired phy

Jakub Vanek <linuxtardis@gmail.com>
    Revert "usb: dwc3: core: Enable AutoRetry feature in the controller"

Marc Kleine-Budde <mkl@pengutronix.de>
    can: gs_usb: gs_can_close(): add missing set of CAN state to CAN_STATE_STOPPED

Johan Hovold <johan@kernel.org>
    USB: serial: simple: sort driver entries

Oliver Neukum <oneukum@suse.com>
    USB: serial: simple: add Kaufmann RKS+CAN VCP

Mohsen Tahmasebi <moh53n@moh53n.ir>
    USB: serial: option: add Quectel EC200A module support

Jerry Meng <jerry-meng@foxmail.com>
    USB: serial: option: support Quectel EM060K_128

Samuel Holland <samuel.holland@sifive.com>
    serial: sifive: Fix sifive_serial_console_setup() section

Ruihong Luo <colorsu1922@gmail.com>
    serial: 8250_dw: Preserve original value of DLF register

Johan Hovold <johan+linaro@kernel.org>
    serial: qcom-geni: drop bogus runtime pm state update

Sean Christopherson <seanjc@google.com>
    KVM: VMX: Don't fudge CR0 and CR4 for restricted L2 guest

Sean Christopherson <seanjc@google.com>
    KVM: Grab a reference to KVM for VM and vCPU stats file descriptors

Zqiang <qiang.zhang1211@gmail.com>
    USB: gadget: Fix the memory leak in raw_gadget driver

Frank Li <Frank.Li@nxp.com>
    usb: gadget: call usb_gadget_check_config() to verify UDC capability

Dan Carpenter <dan.carpenter@linaro.org>
    Revert "usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init()"

Zheng Yejian <zhengyejian1@huawei.com>
    tracing: Fix warning in trace_buffered_event_disable()

Zheng Yejian <zhengyejian1@huawei.com>
    ring-buffer: Fix wrong stat of cpu_buffer->read

Arnd Bergmann <arnd@arndb.de>
    ata: pata_ns87415: mark ns87560_tf_read static

Sindhu Devale <sindhu.devale@intel.com>
    RDMA/irdma: Report correct WC error

Mario Limonciello <mario.limonciello@amd.com>
    drm/amd: Fix an error handling mistake in psp_sw_init()

Yu Kuai <yukuai3@huawei.com>
    dm raid: protect md_stop() with 'reconfig_mutex'

Yu Kuai <yukuai3@huawei.com>
    dm raid: clean up four equivalent goto tags in raid_ctr()

Yu Kuai <yukuai3@huawei.com>
    dm raid: fix missing reconfig_mutex unlock in raid_ctr() error paths

Bart Van Assche <bvanassche@acm.org>
    block: Fix a source code comment in include/uapi/linux/blkzoned.h

Matus Gajdos <matuszpd@gmail.com>
    ASoC: fsl_spdif: Silence output on stop

Gaosheng Cui <cuigaosheng1@huawei.com>
    drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb()

Kashyap Desai <kashyap.desai@broadcom.com>
    RDMA/bnxt_re: Prevent handling any completions after qp destroy

Thomas Bogendoerfer <tbogendoerfer@suse.de>
    RDMA/mthca: Fix crash when polling CQ for shared QPs

Shiraz Saleem <shiraz.saleem@intel.com>
    RDMA/irdma: Fix data race on CQP request done

Shiraz Saleem <shiraz.saleem@intel.com>
    RDMA/irdma: Fix data race on CQP completion stats

Shiraz Saleem <shiraz.saleem@intel.com>
    RDMA/irdma: Add missing read barriers

Rob Clark <robdclark@chromium.org>
    drm/msm/adreno: Fix snapshot BINDLESS_DATA size

Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
    drm/msm/dpu: drop enum dpu_core_perf_data_bus_id

Dan Carpenter <dan.carpenter@linaro.org>
    RDMA/mlx4: Make check for invalid flags stricter

Fedor Pchelkin <pchelkin@ispras.ru>
    tipc: stop tipc crypto on failure in tipc_node_create

Yuanjun Gong <ruc_gongyuanjun@163.com>
    tipc: check return value of pskb_trim()

Yuanjun Gong <ruc_gongyuanjun@163.com>
    benet: fix return value check in be_lancer_xmit_workarounds()

Lin Ma <linma@zju.edu.cn>
    net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64

Vladimir Oltean <vladimir.oltean@nxp.com>
    net/sched: mqprio: add extack to mqprio_parse_nlattr()

Vladimir Oltean <vladimir.oltean@nxp.com>
    net/sched: mqprio: refactor nlattr parsing to a separate function

Pablo Neira Ayuso <pablo@netfilter.org>
    netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID

Pablo Neira Ayuso <pablo@netfilter.org>
    netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR

Florian Westphal <fw@strlen.de>
    netfilter: nft_set_rbtree: fix overlap expiration walk

Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
    igc: Fix Kernel Panic during ndo_tx_timeout callback

Maxim Mikityanskiy <maxtram95@gmail.com>
    platform/x86: msi-laptop: Fix rfkill out-of-sync on MSI Wind U100

Vincent Whitchurch <vincent.whitchurch@axis.com>
    net: stmmac: Apply redundant write work around on 4.xx too

Hangbin Liu <liuhangbin@gmail.com>
    team: reset team's flags when down link is P2P device

Hangbin Liu <liuhangbin@gmail.com>
    bonding: reset bond's flags when down link is P2P device

Jedrzej Jagielski <jedrzej.jagielski@intel.com>
    ice: Fix memory management in ice_ethtool_fdir.c

Stewart Smith <trawets@amazon.com>
    tcp: Reduce chance of collisions in inet6_hashfn().

Maciej Żenczykowski <maze@google.com>
    ipv6 addrconf: fix bug where deleting a mngtmpaddr can create a new temporary address

Yuanjun Gong <ruc_gongyuanjun@163.com>
    ethernet: atheros: fix return value check in atl1e_tso_csum()

Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
    phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()

Jiri Benc <jbenc@redhat.com>
    vxlan: calculate correct header length for GPE

Roopa Prabhu <roopa@nvidia.com>
    vxlan: move to its own directory

Jijie Shao <shaojijie@huawei.com>
    net: hns3: fix wrong bw weight of disabled tc issue

Jijie Shao <shaojijie@huawei.com>
    net: hns3: fix wrong tc bandwidth weight data issue

Jiawen Wu <jiawenwu@trustnetic.com>
    net: phy: marvell10g: fix 88x3310 power up

Jacob Keller <jacob.e.keller@intel.com>
    iavf: check for removal state before IAVF_FLAG_PF_COMMS_FAILED

Jacob Keller <jacob.e.keller@intel.com>
    iavf: fix potential deadlock on allocation failure

Wang Ming <machel@vivo.com>
    i40e: Fix an NULL vs IS_ERR() bug for debugfs_create_dir()

Sakari Ailus <sakari.ailus@linux.intel.com>
    media: staging: atomisp: select V4L2_FWNODE

Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
    soundwire: qcom: update status correctly with mask

Adrien Thierry <athierry@redhat.com>
    phy: qcom-snps-femto-v2: properly enable ref clock

Adrien Thierry <athierry@redhat.com>
    phy: qcom-snps-femto-v2: keep cfg_ahb_clk enabled during runtime suspend

Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
    phy: qcom-snps: correct struct qcom_snps_hsphy kerneldoc

Yuan Can <yuancan@huawei.com>
    phy: qcom-snps: Use dev_err_probe() to simplify code

Zhang Yi <yi.zhang@huawei.com>
    jbd2: fix a race when checking checkpoint buffer busy

Zhang Yi <yi.zhang@huawei.com>
    jbd2: remove journal_clean_one_cp_list()

Zhang Yi <yi.zhang@huawei.com>
    jbd2: remove t_checkpoint_io_list

Guchun Chen <guchun.chen@amd.com>
    drm/amdgpu/vkms: relax timer deactivation by hrtimer_try_to_cancel

Flora Cui <flora.cui@amd.com>
    drm/amdgpu: fix vkms crtc settings

Quinn Tran <qutran@marvell.com>
    scsi: qla2xxx: Fix hang in task management

Arun Easi <aeasi@marvell.com>
    scsi: qla2xxx: Add debug prints in the device remove path

Quinn Tran <qutran@marvell.com>
    scsi: qla2xxx: Fix task management cmd fail due to unavailable resource

Quinn Tran <qutran@marvell.com>
    scsi: qla2xxx: Fix task management cmd failure

Quinn Tran <qutran@marvell.com>
    scsi: qla2xxx: Multi-que support for TMF

Gaosheng Cui <cuigaosheng1@huawei.com>
    scsi: qla2xxx: Remove unused declarations for qla2xxx

Masami Hiramatsu (Google) <mhiramat@kernel.org>
    tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

Masami Hiramatsu (Google) <mhiramat@kernel.org>
    Revert "tracing: Add "(fault)" name injection to kernel probes"

Steven Rostedt (Google) <rostedt@goodmis.org>
    tracing: Allow synthetic events to pass around stacktraces

Masami Hiramatsu (Google) <mhiramat@kernel.org>
    tracing/probes: Fix to avoid double count of the string length on the array

Masami Hiramatsu (Google) <mhiramat@kernel.org>
    tracing/probes: Add symstr type for dynamic events

Heiner Kallweit <hkallweit1@gmail.com>
    pwm: meson: fix handling of period/duty if greater than UINT_MAX

Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    pwm: meson: Simplify duplicated per-channel tracking

Bharath SM <bharathsm@microsoft.com>
    cifs: if deferred close is disabled then close files immediately

Namjae Jeon <linkinjeon@kernel.org>
    ksmbd: remove internal.h include

Paulo Alcantara <pc@cjr.nz>
    cifs: use fs_context for automounts

Steve French <stfrench@microsoft.com>
    cifs: missing directory in MAINTAINERS file

Christian König <christian.koenig@amd.com>
    drm/ttm: never consider pinned BOs for eviction&swap

Hui Li <caelli@tencent.com>
    tty: fix hang on tty device with no_room set

Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
    n_tty: Rename tail to old_tail in n_tty_read()

Thomas Hellström <thomas.hellstrom@linux.intel.com>
    drm/ttm: Don't leak a resource on eviction error

Thomas Hellström <thomas.hellstrom@linux.intel.com>
    drm/ttm: Don't print error message if eviction was interrupted

Alexander Aring <aahringo@redhat.com>
    fs: dlm: interrupt posix locks only when process is killed

Alexander Aring <aahringo@redhat.com>
    dlm: rearrange async condition return

Alexander Aring <aahringo@redhat.com>
    dlm: cleanup plock_op vs plock_xop

Rick Wertenbroek <rick.wertenbroek@gmail.com>
    PCI: rockchip: Don't advertise MSI-X in PCIe capabilities

Rick Wertenbroek <rick.wertenbroek@gmail.com>
    PCI: rockchip: Fix window mapping and address translation for endpoint

Rick Wertenbroek <rick.wertenbroek@gmail.com>
    PCI: rockchip: Remove writes to unused registers

Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
    PCI/ASPM: Avoid link retraining race

Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
    PCI/ASPM: Factor out pcie_wait_for_retrain()

Bjorn Helgaas <bhelgaas@google.com>
    PCI/ASPM: Return 0 or -ETIMEDOUT from pcie_retrain_link()

Christophe JAILLET <christophe.jaillet@wanadoo.fr>
    i2c: nomadik: Remove a useless call in the remove function

Andi Shyti <andi.shyti@kernel.org>
    i2c: nomadik: Use devm_clk_get_enabled()

Andi Shyti <andi.shyti@kernel.org>
    i2c: nomadik: Remove unnecessary goto label

Markus Elfring <elfring@users.sourceforge.net>
    i2c: Improve size determinations

Markus Elfring <elfring@users.sourceforge.net>
    i2c: Delete error messages for failed memory allocations

Filipe Manana <fdmanana@suse.com>
    btrfs: fix race between quota disable and relocation

Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
    gpio: mvebu: fix irq domain leak

Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
    gpio: mvebu: Make use of devm_pwmchip_add

Hans de Goede <hdegoede@redhat.com>
    gpio: tps68470: Make tps68470_gpio_output() always set the initial value

Ondrej Mosnacek <omosnace@redhat.com>
    io_uring: don't audit the capability check in io_uring_create()

Claudio Imbrenda <imbrenda@linux.ibm.com>
    KVM: s390: pv: fix index value of replaced ASCE

Zhihao Cheng <chengzhihao1@huawei.com>
    jbd2: Fix wrongly judgement for buffer head removing while doing checkpoint


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

Diffstat:

 Documentation/admin-guide/security-bugs.rst        |  37 ++-
 Documentation/trace/kprobetrace.rst                |   8 +-
 MAINTAINERS                                        |   1 +
 Makefile                                           |   4 +-
 arch/s390/mm/gmap.c                                |   1 +
 arch/x86/include/asm/kvm-x86-ops.h                 |   1 +
 arch/x86/include/asm/kvm_host.h                    |   3 +-
 arch/x86/kvm/svm/svm.c                             |   6 +
 arch/x86/kvm/vmx/vmx.c                             |  41 +++-
 arch/x86/kvm/x86.c                                 |  34 ++-
 drivers/acpi/processor_perflib.c                   |  42 +++-
 drivers/ata/pata_ns87415.c                         |   2 +-
 drivers/block/rbd.c                                | 124 +++++++---
 drivers/char/tpm/tpm_tis_core.c                    |  10 +-
 drivers/cpufreq/intel_pstate.c                     |  14 --
 drivers/gpio/gpio-mvebu.c                          |  26 ++-
 drivers/gpio/gpio-tps68470.c                       |   6 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c            |   6 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c           |  45 ++--
 drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.h           |   5 +-
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c              |   2 +-
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h        |   2 +-
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h      |  13 --
 drivers/gpu/drm/ttm/ttm_bo.c                       |  25 +-
 drivers/hwmon/k10temp.c                            |  17 +-
 drivers/hwmon/nct7802.c                            |   2 +-
 drivers/i2c/busses/i2c-ibm_iic.c                   |   4 +-
 drivers/i2c/busses/i2c-nomadik.c                   |  42 +---
 drivers/i2c/busses/i2c-sh7760.c                    |   3 +-
 drivers/i2c/busses/i2c-tiny-usb.c                  |   4 +-
 drivers/infiniband/hw/bnxt_re/ib_verbs.c           |  12 +
 drivers/infiniband/hw/bnxt_re/qplib_fp.c           |  18 ++
 drivers/infiniband/hw/bnxt_re/qplib_fp.h           |   1 +
 drivers/infiniband/hw/irdma/ctrl.c                 |  31 ++-
 drivers/infiniband/hw/irdma/defs.h                 |  46 ++--
 drivers/infiniband/hw/irdma/hw.c                   |   3 +-
 drivers/infiniband/hw/irdma/main.h                 |   2 +-
 drivers/infiniband/hw/irdma/puda.c                 |   6 +
 drivers/infiniband/hw/irdma/type.h                 |   2 +
 drivers/infiniband/hw/irdma/uk.c                   |   3 +
 drivers/infiniband/hw/irdma/utils.c                |   8 +-
 drivers/infiniband/hw/mlx4/qp.c                    |  18 +-
 drivers/infiniband/hw/mthca/mthca_qp.c             |   2 +-
 drivers/irqchip/irq-bcm6345-l1.c                   |  14 +-
 drivers/irqchip/irq-gic-v3-its.c                   |  75 +++---
 drivers/md/dm-cache-policy-smq.c                   |  28 ++-
 drivers/md/dm-raid.c                               |  20 +-
 drivers/md/md.c                                    |   2 +
 drivers/net/Makefile                               |   2 +-
 drivers/net/bonding/bond_main.c                    |   5 +
 drivers/net/can/usb/gs_usb.c                       |   2 +
 drivers/net/ethernet/atheros/atl1e/atl1e_main.c    |   7 +-
 drivers/net/ethernet/emulex/benet/be_main.c        |   3 +-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c |  17 +-
 .../ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c |   3 +-
 .../net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c  |   3 +-
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c     |   2 +-
 drivers/net/ethernet/intel/iavf/iavf_main.c        |  11 +-
 drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c  |  26 ++-
 drivers/net/ethernet/intel/igc/igc_main.c          |  40 +++-
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c      |   2 +-
 drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c   |   4 +-
 drivers/net/phy/marvell10g.c                       |   7 +
 drivers/net/team/team.c                            |   9 +
 drivers/net/virtio_net.c                           |   4 +-
 drivers/net/vxlan/Makefile                         |   7 +
 drivers/net/{vxlan.c => vxlan/vxlan_core.c}        |  23 +-
 drivers/pci/controller/pcie-rockchip-ep.c          | 156 ++++++-------
 drivers/pci/controller/pcie-rockchip.h             |  40 ++--
 drivers/pci/pcie/aspm.c                            |  55 +++--
 drivers/phy/hisilicon/phy-hisi-inno-usb2.c         |   2 +-
 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c      |  86 ++++---
 drivers/platform/x86/msi-laptop.c                  |   8 +-
 drivers/pwm/pwm-meson.c                            |  25 +-
 drivers/s390/block/dasd_ioctl.c                    |   1 +
 drivers/scsi/qla2xxx/qla_attr.c                    |   3 +
 drivers/scsi/qla2xxx/qla_def.h                     |  27 +++
 drivers/scsi/qla2xxx/qla_gbl.h                     |  14 +-
 drivers/scsi/qla2xxx/qla_init.c                    | 256 +++++++++++++++++++--
 drivers/scsi/qla2xxx/qla_iocb.c                    |  33 ++-
 drivers/scsi/qla2xxx/qla_isr.c                     |  26 ++-
 drivers/scsi/qla2xxx/qla_target.h                  |   2 -
 drivers/soundwire/qcom.c                           |   2 +-
 drivers/staging/ks7010/ks_wlan_net.c               |   6 +-
 drivers/staging/media/atomisp/Kconfig              |   1 +
 drivers/staging/rtl8712/rtl871x_xmit.c             |  43 +++-
 drivers/staging/rtl8712/xmit_linux.c               |   6 +
 drivers/tty/n_gsm.c                                |   4 +-
 drivers/tty/n_tty.c                                |  29 ++-
 drivers/tty/serial/8250/8250_dwlib.c               |   6 +-
 drivers/tty/serial/qcom_geni_serial.c              |   7 -
 drivers/tty/serial/sifive.c                        |   2 +-
 drivers/usb/cdns3/cdns3-gadget.c                   |   4 +-
 drivers/usb/core/quirks.c                          |   4 +
 drivers/usb/dwc3/core.c                            |  20 +-
 drivers/usb/dwc3/core.h                            |   3 -
 drivers/usb/dwc3/dwc3-pci.c                        |   6 +-
 drivers/usb/gadget/composite.c                     |   4 +
 drivers/usb/gadget/legacy/raw_gadget.c             |  12 +-
 drivers/usb/gadget/udc/tegra-xudc.c                |   8 +-
 drivers/usb/host/ohci-at91.c                       |   8 +-
 drivers/usb/host/xhci-mtk.c                        |   1 +
 drivers/usb/host/xhci-pci.c                        |   4 +-
 drivers/usb/host/xhci-ring.c                       |  25 +-
 drivers/usb/host/xhci-tegra.c                      |   8 +-
 drivers/usb/serial/option.c                        |   6 +
 drivers/usb/serial/usb-serial-simple.c             |  73 +++---
 fs/btrfs/qgroup.c                                  |  18 +-
 fs/btrfs/transaction.c                             |  10 +-
 fs/ceph/metric.c                                   |   2 +-
 fs/cifs/cifs_dfs_ref.c                             | 100 ++++----
 fs/cifs/file.c                                     |   4 +-
 fs/dlm/plock.c                                     | 100 ++++----
 fs/file.c                                          |   6 +-
 fs/internal.h                                      |   2 -
 fs/jbd2/checkpoint.c                               | 197 ++++++----------
 fs/jbd2/commit.c                                   |   3 +-
 fs/jbd2/transaction.c                              |  17 +-
 fs/ksmbd/vfs.c                                     |   2 -
 fs/nfsd/nfs4state.c                                |   2 -
 include/linux/jbd2.h                               |   7 +-
 include/linux/namei.h                              |   2 +
 include/net/ipv6.h                                 |   8 +-
 include/net/vxlan.h                                |  13 +-
 include/trace/events/jbd2.h                        |  12 +-
 include/uapi/linux/blkzoned.h                      |  10 +-
 io_uring/io_uring.c                                |  10 +-
 kernel/locking/rtmutex.c                           | 172 +++++++++-----
 kernel/locking/rtmutex_api.c                       |   2 +-
 kernel/locking/rtmutex_common.h                    |  47 ++--
 kernel/locking/ww_mutex.h                          |  12 +-
 kernel/trace/ring_buffer.c                         |  22 +-
 kernel/trace/trace.c                               |   2 +-
 kernel/trace/trace.h                               |   6 +
 kernel/trace/trace_events.c                        |  14 +-
 kernel/trace/trace_events_hist.c                   |   7 +-
 kernel/trace/trace_events_synth.c                  |  80 ++++++-
 kernel/trace/trace_probe.c                         |  46 ++--
 kernel/trace/trace_probe.h                         |  16 +-
 kernel/trace/trace_probe_kernel.h                  |  30 +--
 kernel/trace/trace_probe_tmpl.h                    |  59 ++++-
 kernel/trace/trace_synth.h                         |   1 +
 kernel/trace/trace_uprobe.c                        |   3 +-
 net/ceph/messenger.c                               |   1 +
 net/ipv6/addrconf.c                                |  14 +-
 net/netfilter/nf_tables_api.c                      |   5 +-
 net/netfilter/nft_immediate.c                      |  27 ++-
 net/netfilter/nft_set_rbtree.c                     |  20 +-
 net/sched/sch_mqprio.c                             | 144 ++++++++----
 net/tipc/crypto.c                                  |   3 +-
 net/tipc/node.c                                    |   2 +-
 sound/pci/hda/patch_realtek.c                      |   1 +
 sound/soc/codecs/cs42l51-i2c.c                     |   6 +
 sound/soc/codecs/cs42l51.c                         |   7 -
 sound/soc/codecs/cs42l51.h                         |   1 -
 sound/soc/codecs/wm8904.c                          |   3 +
 sound/soc/fsl/fsl_spdif.c                          |   2 +
 tools/testing/selftests/net/mptcp/mptcp_join.sh    |   5 +-
 tools/testing/selftests/net/mptcp/mptcp_sockopt.sh |  20 +-
 virt/kvm/kvm_main.c                                |  24 ++
 160 files changed, 2097 insertions(+), 1256 deletions(-)

[PATCH 5.15 001/155] jbd2: Fix wrongly judgement for buffer head removing while doing checkpoint

[Greg Kroah-Hartman]

From: Zhihao Cheng <chengzhihao1@huawei.com>

[ Upstream commit e34c8dd238d0c9368b746480f313055f5bab5040 ]

Following process,

jbd2_journal_commit_transaction
// there are several dirty buffer heads in transaction->t_checkpoint_list
          P1                   wb_workfn
jbd2_log_do_checkpoint
 if (buffer_locked(bh)) // false
                            __block_write_full_page
                             trylock_buffer(bh)
                             test_clear_buffer_dirty(bh)
 if (!buffer_dirty(bh))
  __jbd2_journal_remove_checkpoint(jh)
   if (buffer_write_io_error(bh)) // false
                             >> bh IO error occurs <<
 jbd2_cleanup_journal_tail
  __jbd2_update_log_tail
   jbd2_write_superblock
   // The bh won't be replayed in next mount.
, which could corrupt the ext4 image, fetch a reproducer in [Link].

Since writeback process clears buffer dirty after locking buffer head,
we can fix it by try locking buffer and check dirtiness while buffer is
locked, the buffer head can be removed if it is neither dirty nor locked.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217490
Fixes: 470decc613ab ("[PATCH] jbd2: initial copy of files from jbd")
Signed-off-by: Zhihao Cheng <chengzhihao1@huawei.com>
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-5-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/jbd2/checkpoint.c | 32 +++++++++++++++++---------------
 1 file changed, 17 insertions(+), 15 deletions(-)

diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index fe8bb031b7d7f..d2aba55833f92 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -221,20 +221,6 @@ int jbd2_log_do_checkpoint(journal_t *journal)
 		jh = transaction->t_checkpoint_list;
 		bh = jh2bh(jh);
 
-		/*
-		 * The buffer may be writing back, or flushing out in the
-		 * last couple of cycles, or re-adding into a new transaction,
-		 * need to check it again until it's unlocked.
-		 */
-		if (buffer_locked(bh)) {
-			get_bh(bh);
-			spin_unlock(&journal->j_list_lock);
-			wait_on_buffer(bh);
-			/* the journal_head may have gone by now */
-			BUFFER_TRACE(bh, "brelse");
-			__brelse(bh);
-			goto retry;
-		}
 		if (jh->b_transaction != NULL) {
 			transaction_t *t = jh->b_transaction;
 			tid_t tid = t->t_tid;
@@ -269,7 +255,22 @@ int jbd2_log_do_checkpoint(journal_t *journal)
 			spin_lock(&journal->j_list_lock);
 			goto restart;
 		}
-		if (!buffer_dirty(bh)) {
+		if (!trylock_buffer(bh)) {
+			/*
+			 * The buffer is locked, it may be writing back, or
+			 * flushing out in the last couple of cycles, or
+			 * re-adding into a new transaction, need to check
+			 * it again until it's unlocked.
+			 */
+			get_bh(bh);
+			spin_unlock(&journal->j_list_lock);
+			wait_on_buffer(bh);
+			/* the journal_head may have gone by now */
+			BUFFER_TRACE(bh, "brelse");
+			__brelse(bh);
+			goto retry;
+		} else if (!buffer_dirty(bh)) {
+			unlock_buffer(bh);
 			BUFFER_TRACE(bh, "remove from checkpoint");
 			/*
 			 * If the transaction was released or the checkpoint
@@ -279,6 +280,7 @@ int jbd2_log_do_checkpoint(journal_t *journal)
 			    !transaction->t_checkpoint_list)
 				goto out;
 		} else {
+			unlock_buffer(bh);
 			/*
 			 * We are about to write the buffer, it could be
 			 * raced by some other transaction shrink or buffer
-- 
2.39.2

[PATCH 5.15 002/155] KVM: s390: pv: fix index value of replaced ASCE

[Greg Kroah-Hartman]

From: Claudio Imbrenda <imbrenda@linux.ibm.com>

[ Upstream commit c2fceb59bbda16468bda82b002383bff59de89ab ]

The index field of the struct page corresponding to a guest ASCE should
be 0. When replacing the ASCE in s390_replace_asce(), the index of the
new ASCE should also be set to 0.

Having the wrong index might lead to the wrong addresses being passed
around when notifying pte invalidations, and eventually to validity
intercepts (VM crash) if the prefix gets unmapped and the notifier gets
called with the wrong address.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Fixes: faa2f72cb356 ("KVM: s390: pv: leak the topmost page table when destroy fails")
Reviewed-by: Janosch Frank <frankja@linux.ibm.com>
Signed-off-by: Claudio Imbrenda <imbrenda@linux.ibm.com>
Message-ID: <20230705111937.33472-3-imbrenda@linux.ibm.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/s390/mm/gmap.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/s390/mm/gmap.c b/arch/s390/mm/gmap.c
index ff40bf92db43a..a2c872de29a66 100644
--- a/arch/s390/mm/gmap.c
+++ b/arch/s390/mm/gmap.c
@@ -2791,6 +2791,7 @@ int s390_replace_asce(struct gmap *gmap)
 	page = alloc_pages(GFP_KERNEL_ACCOUNT, CRST_ALLOC_ORDER);
 	if (!page)
 		return -ENOMEM;
+	page->index = 0;
 	table = page_to_virt(page);
 	memcpy(table, gmap->table, 1UL << (CRST_ALLOC_ORDER + PAGE_SHIFT));
 
-- 
2.39.2

[PATCH 5.15 003/155] io_uring: dont audit the capability check in io_uring_create()

[Greg Kroah-Hartman]

From: Ondrej Mosnacek <omosnace@redhat.com>

[ Upstream commit 6adc2272aaaf84f34b652cf77f770c6fcc4b8336 ]

The check being unconditional may lead to unwanted denials reported by
LSMs when a process has the capability granted by DAC, but denied by an
LSM. In the case of SELinux such denials are a problem, since they can't
be effectively filtered out via the policy and when not silenced, they
produce noise that may hide a true problem or an attack.

Since not having the capability merely means that the created io_uring
context will be accounted against the current user's RLIMIT_MEMLOCK
limit, we can disable auditing of denials for this check by using
ns_capable_noaudit() instead of capable().

Fixes: 2b188cc1bb85 ("Add io_uring IO interface")
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2193317
Signed-off-by: Ondrej Mosnacek <omosnace@redhat.com>
Reviewed-by: Jeff Moyer <jmoyer@redhat.com>
Link: https://lore.kernel.org/r/20230718115607.65652-1-omosnace@redhat.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 io_uring/io_uring.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/io_uring/io_uring.c b/io_uring/io_uring.c
index d7f87157be9aa..f65c6811ede81 100644
--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -10602,7 +10602,7 @@ static int io_uring_create(unsigned entries, struct io_uring_params *p,
 	if (!ctx)
 		return -ENOMEM;
 	ctx->compat = in_compat_syscall();
-	if (!capable(CAP_IPC_LOCK))
+	if (!ns_capable_noaudit(&init_user_ns, CAP_IPC_LOCK))
 		ctx->user = get_uid(current_user());
 
 	/*
-- 
2.39.2

[PATCH 5.15 004/155] gpio: tps68470: Make tps68470_gpio_output() always set the initial value

[Greg Kroah-Hartman]

From: Hans de Goede <hdegoede@redhat.com>

[ Upstream commit 5a7adc6c1069ce31ef4f606ae9c05592c80a6ab5 ]

Make tps68470_gpio_output() call tps68470_gpio_set() for output-only pins
too, so that the initial value passed to gpiod_direction_output() is
honored for these pins too.

Fixes: 275b13a65547 ("gpio: Add support for TPS68470 GPIOs")
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Daniel Scally <dan.scally@ideasonboard.com>
Tested-by: Daniel Scally <dan.scally@ideasonboard.com>
Reviewed-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-tps68470.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpio/gpio-tps68470.c b/drivers/gpio/gpio-tps68470.c
index 423b7bc30ae88..03a523a6d6fa4 100644
--- a/drivers/gpio/gpio-tps68470.c
+++ b/drivers/gpio/gpio-tps68470.c
@@ -91,13 +91,13 @@ static int tps68470_gpio_output(struct gpio_chip *gc, unsigned int offset,
 	struct tps68470_gpio_data *tps68470_gpio = gpiochip_get_data(gc);
 	struct regmap *regmap = tps68470_gpio->tps68470_regmap;
 
+	/* Set the initial value */
+	tps68470_gpio_set(gc, offset, value);
+
 	/* rest are always outputs */
 	if (offset >= TPS68470_N_REGULAR_GPIO)
 		return 0;
 
-	/* Set the initial value */
-	tps68470_gpio_set(gc, offset, value);
-
 	return regmap_update_bits(regmap, TPS68470_GPIO_CTL_REG_A(offset),
 				 TPS68470_GPIO_MODE_MASK,
 				 TPS68470_GPIO_MODE_OUT_CMOS);
-- 
2.39.2

[PATCH 5.15 005/155] gpio: mvebu: Make use of devm_pwmchip_add

[Greg Kroah-Hartman]

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit 1945063eb59e64d2919cb14d54d081476d9e53bb ]

This allows to get rid of a call to pwmchip_remove() in the error path. There
is no .remove function for this driver, so this change fixes a resource leak
when a gpio-mvebu device is unbound.

Fixes: 757642f9a584 ("gpio: mvebu: Add limited PWM support")
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Andy Shevchenko <andy@kernel.org>
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-mvebu.c | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index a245bfd5a6173..4d64b3358c50c 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -874,7 +874,7 @@ static int mvebu_pwm_probe(struct platform_device *pdev,
 
 	spin_lock_init(&mvpwm->lock);
 
-	return pwmchip_add(&mvpwm->chip);
+	return devm_pwmchip_add(dev, &mvpwm->chip);
 }
 
 #ifdef CONFIG_DEBUG_FS
@@ -1244,8 +1244,7 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 	if (!mvchip->domain) {
 		dev_err(&pdev->dev, "couldn't allocate irq domain %s (DT).\n",
 			mvchip->chip.label);
-		err = -ENODEV;
-		goto err_pwm;
+		return -ENODEV;
 	}
 
 	err = irq_alloc_domain_generic_chips(
@@ -1297,9 +1296,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 
 err_domain:
 	irq_domain_remove(mvchip->domain);
-err_pwm:
-	pwmchip_remove(&mvchip->mvpwm->chip);
-
 	return err;
 }
 
-- 
2.39.2

[PATCH 5.15 006/155] gpio: mvebu: fix irq domain leak

[Greg Kroah-Hartman]

From: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>

[ Upstream commit 644ee70267a934be27370f9aa618b29af7290544 ]

Uwe Kleine-König pointed out we still have one resource leak in the mvebu
driver triggered on driver detach. Let's address it with a custom devm
action.

Fixes: 812d47889a8e ("gpio/mvebu: Use irq_domain_add_linear")
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Reviewed-by: Andy Shevchenko <andy.shevchenko@gmail.com>
Reviewed-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-mvebu.c | 18 +++++++++++++-----
 1 file changed, 13 insertions(+), 5 deletions(-)

diff --git a/drivers/gpio/gpio-mvebu.c b/drivers/gpio/gpio-mvebu.c
index 4d64b3358c50c..b965513f44fea 100644
--- a/drivers/gpio/gpio-mvebu.c
+++ b/drivers/gpio/gpio-mvebu.c
@@ -1112,6 +1112,13 @@ static int mvebu_gpio_probe_syscon(struct platform_device *pdev,
 	return 0;
 }
 
+static void mvebu_gpio_remove_irq_domain(void *data)
+{
+	struct irq_domain *domain = data;
+
+	irq_domain_remove(domain);
+}
+
 static int mvebu_gpio_probe(struct platform_device *pdev)
 {
 	struct mvebu_gpio_chip *mvchip;
@@ -1247,13 +1254,18 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 		return -ENODEV;
 	}
 
+	err = devm_add_action_or_reset(&pdev->dev, mvebu_gpio_remove_irq_domain,
+				       mvchip->domain);
+	if (err)
+		return err;
+
 	err = irq_alloc_domain_generic_chips(
 	    mvchip->domain, ngpios, 2, np->name, handle_level_irq,
 	    IRQ_NOREQUEST | IRQ_NOPROBE | IRQ_LEVEL, 0, 0);
 	if (err) {
 		dev_err(&pdev->dev, "couldn't allocate irq chips %s (DT).\n",
 			mvchip->chip.label);
-		goto err_domain;
+		return err;
 	}
 
 	/*
@@ -1293,10 +1305,6 @@ static int mvebu_gpio_probe(struct platform_device *pdev)
 	}
 
 	return 0;
-
-err_domain:
-	irq_domain_remove(mvchip->domain);
-	return err;
 }
 
 static struct platform_driver mvebu_gpio_driver = {
-- 
2.39.2

[PATCH 5.15 007/155] btrfs: fix race between quota disable and relocation

[Greg Kroah-Hartman]

From: Filipe Manana <fdmanana@suse.com>

[ Upstream commit 8a4a0b2a3eaf75ca8854f856ef29690c12b2f531 ]

If we disable quotas while we have a relocation of a metadata block group
that has extents belonging to the quota root, we can cause the relocation
to fail with -ENOENT. This is because relocation builds backref nodes for
extents of the quota root and later needs to walk the backrefs and access
the quota root - however if in between a task disables quotas, it results
in deleting the quota root from the root tree (with btrfs_del_root(),
called from btrfs_quota_disable().

This can be sporadically triggered by test case btrfs/255 from fstests:

  $ ./check btrfs/255
  FSTYP         -- btrfs
  PLATFORM      -- Linux/x86_64 debian0 6.4.0-rc6-btrfs-next-134+ #1 SMP PREEMPT_DYNAMIC Thu Jun 15 11:59:28 WEST 2023
  MKFS_OPTIONS  -- /dev/sdc
  MOUNT_OPTIONS -- /dev/sdc /home/fdmanana/btrfs-tests/scratch_1

  btrfs/255 6s ... _check_dmesg: something found in dmesg (see /home/fdmanana/git/hub/xfstests/results//btrfs/255.dmesg)
  - output mismatch (see /home/fdmanana/git/hub/xfstests/results//btrfs/255.out.bad)
#      --- tests/btrfs/255.out	2023-03-02 21:47:53.876609426 +0000
#      +++ /home/fdmanana/git/hub/xfstests/results//btrfs/255.out.bad	2023-06-16 10:20:39.267563212 +0100
#      @@ -1,2 +1,4 @@
#       QA output created by 255
#      +ERROR: error during balancing '/home/fdmanana/btrfs-tests/scratch_1': No such file or directory
#      +There may be more info in syslog - try dmesg | tail
#       Silence is golden
#      ...
      (Run 'diff -u /home/fdmanana/git/hub/xfstests/tests/btrfs/255.out /home/fdmanana/git/hub/xfstests/results//btrfs/255.out.bad'  to see the entire diff)
  Ran: btrfs/255
  Failures: btrfs/255
  Failed 1 of 1 tests

To fix this make the quota disable operation take the cleaner mutex, as
relocation of a block group also takes this mutex. This is also what we
do when deleting a subvolume/snapshot, we take the cleaner mutex in the
cleaner kthread (at cleaner_kthread()) and then we call btrfs_del_root()
at btrfs_drop_snapshot() while under the protection of the cleaner mutex.

Fixes: bed92eae26cc ("Btrfs: qgroup implementation and prototypes")
CC: stable@vger.kernel.org # 5.4+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/qgroup.c | 18 +++++++++++++++---
 1 file changed, 15 insertions(+), 3 deletions(-)

diff --git a/fs/btrfs/qgroup.c b/fs/btrfs/qgroup.c
index d408d1dfde7c8..d46a070275ff5 100644
--- a/fs/btrfs/qgroup.c
+++ b/fs/btrfs/qgroup.c
@@ -1201,12 +1201,23 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
 	int ret = 0;
 
 	/*
-	 * We need to have subvol_sem write locked, to prevent races between
-	 * concurrent tasks trying to disable quotas, because we will unlock
-	 * and relock qgroup_ioctl_lock across BTRFS_FS_QUOTA_ENABLED changes.
+	 * We need to have subvol_sem write locked to prevent races with
+	 * snapshot creation.
 	 */
 	lockdep_assert_held_write(&fs_info->subvol_sem);
 
+	/*
+	 * Lock the cleaner mutex to prevent races with concurrent relocation,
+	 * because relocation may be building backrefs for blocks of the quota
+	 * root while we are deleting the root. This is like dropping fs roots
+	 * of deleted snapshots/subvolumes, we need the same protection.
+	 *
+	 * This also prevents races between concurrent tasks trying to disable
+	 * quotas, because we will unlock and relock qgroup_ioctl_lock across
+	 * BTRFS_FS_QUOTA_ENABLED changes.
+	 */
+	mutex_lock(&fs_info->cleaner_mutex);
+
 	mutex_lock(&fs_info->qgroup_ioctl_lock);
 	if (!fs_info->quota_root)
 		goto out;
@@ -1287,6 +1298,7 @@ int btrfs_quota_disable(struct btrfs_fs_info *fs_info)
 		btrfs_end_transaction(trans);
 	else if (trans)
 		ret = btrfs_end_transaction(trans);
+	mutex_unlock(&fs_info->cleaner_mutex);
 
 	return ret;
 }
-- 
2.39.2

[PATCH 5.15 008/155] i2c: Delete error messages for failed memory allocations

[Greg Kroah-Hartman]

From: Markus Elfring <elfring@users.sourceforge.net>

[ Upstream commit 6b3b21a8542fd2fb6ffc61bc13b9419f0c58ebad ]

These issues were detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Stable-dep-of: 05f933d5f731 ("i2c: nomadik: Remove a useless call in the remove function")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-ibm_iic.c  | 4 +---
 drivers/i2c/busses/i2c-nomadik.c  | 1 -
 drivers/i2c/busses/i2c-sh7760.c   | 1 -
 drivers/i2c/busses/i2c-tiny-usb.c | 4 +---
 4 files changed, 2 insertions(+), 8 deletions(-)

diff --git a/drivers/i2c/busses/i2c-ibm_iic.c b/drivers/i2c/busses/i2c-ibm_iic.c
index 9f71daf6db64b..c073f5b8833a2 100644
--- a/drivers/i2c/busses/i2c-ibm_iic.c
+++ b/drivers/i2c/busses/i2c-ibm_iic.c
@@ -694,10 +694,8 @@ static int iic_probe(struct platform_device *ofdev)
 	int ret;
 
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (!dev) {
-		dev_err(&ofdev->dev, "failed to allocate device data\n");
+	if (!dev)
 		return -ENOMEM;
-	}
 
 	platform_set_drvdata(ofdev, dev);
 
diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index a2d12a5b1c34c..05eaae5aeb180 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -972,7 +972,6 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 
 	dev = devm_kzalloc(&adev->dev, sizeof(struct nmk_i2c_dev), GFP_KERNEL);
 	if (!dev) {
-		dev_err(&adev->dev, "cannot allocate memory\n");
 		ret = -ENOMEM;
 		goto err_no_mem;
 	}
diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c
index 319d1fa617c88..a0ccc5d009874 100644
--- a/drivers/i2c/busses/i2c-sh7760.c
+++ b/drivers/i2c/busses/i2c-sh7760.c
@@ -445,7 +445,6 @@ static int sh7760_i2c_probe(struct platform_device *pdev)
 
 	id = kzalloc(sizeof(struct cami2c), GFP_KERNEL);
 	if (!id) {
-		dev_err(&pdev->dev, "no mem for private data\n");
 		ret = -ENOMEM;
 		goto out0;
 	}
diff --git a/drivers/i2c/busses/i2c-tiny-usb.c b/drivers/i2c/busses/i2c-tiny-usb.c
index 7279ca0eaa2d0..d1fa9ff5aeab4 100644
--- a/drivers/i2c/busses/i2c-tiny-usb.c
+++ b/drivers/i2c/busses/i2c-tiny-usb.c
@@ -226,10 +226,8 @@ static int i2c_tiny_usb_probe(struct usb_interface *interface,
 
 	/* allocate memory for our device state and initialize it */
 	dev = kzalloc(sizeof(*dev), GFP_KERNEL);
-	if (dev == NULL) {
-		dev_err(&interface->dev, "Out of memory\n");
+	if (!dev)
 		goto error;
-	}
 
 	dev->usb_dev = usb_get_dev(interface_to_usbdev(interface));
 	dev->interface = interface;
-- 
2.39.2

[PATCH 5.15 009/155] i2c: Improve size determinations

[Greg Kroah-Hartman]

From: Markus Elfring <elfring@users.sourceforge.net>

[ Upstream commit 06e989578232da33a7fe96b04191b862af8b2cec ]

Replace the specification of a data structure by a pointer dereference
as the parameter for the operator "sizeof" to make the corresponding
size determination a bit safer according to the Linux coding style
convention.

This issue was detected by using the Coccinelle software.

Signed-off-by: Markus Elfring <elfring@users.sourceforge.net>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Stable-dep-of: 05f933d5f731 ("i2c: nomadik: Remove a useless call in the remove function")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-nomadik.c | 2 +-
 drivers/i2c/busses/i2c-sh7760.c  | 2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 05eaae5aeb180..5004b9dd98563 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -970,7 +970,7 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 	struct i2c_vendor_data *vendor = id->data;
 	u32 max_fifo_threshold = (vendor->fifodepth / 2) - 1;
 
-	dev = devm_kzalloc(&adev->dev, sizeof(struct nmk_i2c_dev), GFP_KERNEL);
+	dev = devm_kzalloc(&adev->dev, sizeof(*dev), GFP_KERNEL);
 	if (!dev) {
 		ret = -ENOMEM;
 		goto err_no_mem;
diff --git a/drivers/i2c/busses/i2c-sh7760.c b/drivers/i2c/busses/i2c-sh7760.c
index a0ccc5d009874..051b904cb35f6 100644
--- a/drivers/i2c/busses/i2c-sh7760.c
+++ b/drivers/i2c/busses/i2c-sh7760.c
@@ -443,7 +443,7 @@ static int sh7760_i2c_probe(struct platform_device *pdev)
 		goto out0;
 	}
 
-	id = kzalloc(sizeof(struct cami2c), GFP_KERNEL);
+	id = kzalloc(sizeof(*id), GFP_KERNEL);
 	if (!id) {
 		ret = -ENOMEM;
 		goto out0;
-- 
2.39.2

[PATCH 5.15 010/155] i2c: nomadik: Remove unnecessary goto label

[Greg Kroah-Hartman]

From: Andi Shyti <andi.shyti@kernel.org>

[ Upstream commit 1c5d33fff0d375e4ab7c4261dc62a286babbb4c6 ]

The err_no_mem goto label doesn't do anything. Remove it.

Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Stable-dep-of: 05f933d5f731 ("i2c: nomadik: Remove a useless call in the remove function")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-nomadik.c | 21 ++++++++-------------
 1 file changed, 8 insertions(+), 13 deletions(-)

diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 5004b9dd98563..8b9577318388e 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -971,10 +971,9 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 	u32 max_fifo_threshold = (vendor->fifodepth / 2) - 1;
 
 	dev = devm_kzalloc(&adev->dev, sizeof(*dev), GFP_KERNEL);
-	if (!dev) {
-		ret = -ENOMEM;
-		goto err_no_mem;
-	}
+	if (!dev)
+		return -ENOMEM;
+
 	dev->vendor = vendor;
 	dev->adev = adev;
 	nmk_i2c_of_probe(np, dev);
@@ -995,30 +994,27 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 
 	dev->virtbase = devm_ioremap(&adev->dev, adev->res.start,
 				resource_size(&adev->res));
-	if (!dev->virtbase) {
-		ret = -ENOMEM;
-		goto err_no_mem;
-	}
+	if (!dev->virtbase)
+		return -ENOMEM;
 
 	dev->irq = adev->irq[0];
 	ret = devm_request_irq(&adev->dev, dev->irq, i2c_irq_handler, 0,
 				DRIVER_NAME, dev);
 	if (ret) {
 		dev_err(&adev->dev, "cannot claim the irq %d\n", dev->irq);
-		goto err_no_mem;
+		return ret;
 	}
 
 	dev->clk = devm_clk_get(&adev->dev, NULL);
 	if (IS_ERR(dev->clk)) {
 		dev_err(&adev->dev, "could not get i2c clock\n");
-		ret = PTR_ERR(dev->clk);
-		goto err_no_mem;
+		return PTR_ERR(dev->clk);
 	}
 
 	ret = clk_prepare_enable(dev->clk);
 	if (ret) {
 		dev_err(&adev->dev, "can't prepare_enable clock\n");
-		goto err_no_mem;
+		return ret;
 	}
 
 	init_hw(dev);
@@ -1049,7 +1045,6 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 
  err_no_adap:
 	clk_disable_unprepare(dev->clk);
- err_no_mem:
 
 	return ret;
 }
-- 
2.39.2

[PATCH 5.15 011/155] i2c: nomadik: Use devm_clk_get_enabled()

[Greg Kroah-Hartman]

From: Andi Shyti <andi.shyti@kernel.org>

[ Upstream commit 9c7174db4cdd111e10d19eed5c36fd978a14c8a2 ]

Replace the pair of functions, devm_clk_get() and
clk_prepare_enable(), with a single function
devm_clk_get_enabled().

Signed-off-by: Andi Shyti <andi.shyti@kernel.org>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Stable-dep-of: 05f933d5f731 ("i2c: nomadik: Remove a useless call in the remove function")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-nomadik.c | 18 +++---------------
 1 file changed, 3 insertions(+), 15 deletions(-)

diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 8b9577318388e..2141ba05dfece 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -1005,18 +1005,12 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 		return ret;
 	}
 
-	dev->clk = devm_clk_get(&adev->dev, NULL);
+	dev->clk = devm_clk_get_enabled(&adev->dev, NULL);
 	if (IS_ERR(dev->clk)) {
-		dev_err(&adev->dev, "could not get i2c clock\n");
+		dev_err(&adev->dev, "could enable i2c clock\n");
 		return PTR_ERR(dev->clk);
 	}
 
-	ret = clk_prepare_enable(dev->clk);
-	if (ret) {
-		dev_err(&adev->dev, "can't prepare_enable clock\n");
-		return ret;
-	}
-
 	init_hw(dev);
 
 	adap = &dev->adap;
@@ -1037,16 +1031,11 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 
 	ret = i2c_add_adapter(adap);
 	if (ret)
-		goto err_no_adap;
+		return ret;
 
 	pm_runtime_put(&adev->dev);
 
 	return 0;
-
- err_no_adap:
-	clk_disable_unprepare(dev->clk);
-
-	return ret;
 }
 
 static void nmk_i2c_remove(struct amba_device *adev)
@@ -1060,7 +1049,6 @@ static void nmk_i2c_remove(struct amba_device *adev)
 	clear_all_interrupts(dev);
 	/* disable the controller */
 	i2c_clr_bit(dev->virtbase + I2C_CR, I2C_CR_PE);
-	clk_disable_unprepare(dev->clk);
 	release_mem_region(res->start, resource_size(res));
 }
 
-- 
2.39.2

[PATCH 5.15 012/155] i2c: nomadik: Remove a useless call in the remove function

[Greg Kroah-Hartman]

From: Christophe JAILLET <christophe.jaillet@wanadoo.fr>

[ Upstream commit 05f933d5f7318b03ff2028c1704dc867ac16f2c7 ]

Since commit 235602146ec9 ("i2c-nomadik: turn the platform driver to an amba
driver"), there is no more request_mem_region() call in this driver.

So remove the release_mem_region() call from the remove function which is
likely a left over.

Fixes: 235602146ec9 ("i2c-nomadik: turn the platform driver to an amba driver")
Cc: <stable@vger.kernel.org> # v3.6+
Acked-by: Linus Walleij <linus.walleij@linaro.org>
Reviewed-by: Andi Shyti <andi.shyti@kernel.org>
Signed-off-by: Christophe JAILLET <christophe.jaillet@wanadoo.fr>
Signed-off-by: Wolfram Sang <wsa@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-nomadik.c | 2 --
 1 file changed, 2 deletions(-)

diff --git a/drivers/i2c/busses/i2c-nomadik.c b/drivers/i2c/busses/i2c-nomadik.c
index 2141ba05dfece..9c5d66bd6dc1c 100644
--- a/drivers/i2c/busses/i2c-nomadik.c
+++ b/drivers/i2c/busses/i2c-nomadik.c
@@ -1040,7 +1040,6 @@ static int nmk_i2c_probe(struct amba_device *adev, const struct amba_id *id)
 
 static void nmk_i2c_remove(struct amba_device *adev)
 {
-	struct resource *res = &adev->res;
 	struct nmk_i2c_dev *dev = amba_get_drvdata(adev);
 
 	i2c_del_adapter(&dev->adap);
@@ -1049,7 +1048,6 @@ static void nmk_i2c_remove(struct amba_device *adev)
 	clear_all_interrupts(dev);
 	/* disable the controller */
 	i2c_clr_bit(dev->virtbase + I2C_CR, I2C_CR_PE);
-	release_mem_region(res->start, resource_size(res));
 }
 
 static struct i2c_vendor_data vendor_stn8815 = {
-- 
2.39.2

[PATCH 5.15 013/155] PCI/ASPM: Return 0 or -ETIMEDOUT from pcie_retrain_link()

[Greg Kroah-Hartman]

From: Bjorn Helgaas <bhelgaas@google.com>

[ Upstream commit f5297a01ee805d7fa569d288ed65fc0f9ac9b03d ]

"pcie_retrain_link" is not a question with a true/false answer, so "bool"
isn't quite the right return type.  Return 0 for success or -ETIMEDOUT if
the retrain failed.  No functional change intended.

[bhelgaas: based on Ilpo's patch below]
Link: https://lore.kernel.org/r/20230502083923.34562-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Stable-dep-of: e7e39756363a ("PCI/ASPM: Avoid link retraining race")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pcie/aspm.c | 20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index c58294f53fcd1..e7f742ff31c3c 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -192,7 +192,7 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
 	link->clkpm_disable = blacklist ? 1 : 0;
 }
 
-static bool pcie_retrain_link(struct pcie_link_state *link)
+static int pcie_retrain_link(struct pcie_link_state *link)
 {
 	struct pci_dev *parent = link->pdev;
 	unsigned long end_jiffies;
@@ -219,7 +219,9 @@ static bool pcie_retrain_link(struct pcie_link_state *link)
 			break;
 		msleep(1);
 	} while (time_before(jiffies, end_jiffies));
-	return !(reg16 & PCI_EXP_LNKSTA_LT);
+	if (reg16 & PCI_EXP_LNKSTA_LT)
+		return -ETIMEDOUT;
+	return 0;
 }
 
 /*
@@ -288,15 +290,15 @@ static void pcie_aspm_configure_common_clock(struct pcie_link_state *link)
 		reg16 &= ~PCI_EXP_LNKCTL_CCC;
 	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
 
-	if (pcie_retrain_link(link))
-		return;
+	if (pcie_retrain_link(link)) {
 
-	/* Training failed. Restore common clock configurations */
-	pci_err(parent, "ASPM: Could not configure common clock\n");
-	list_for_each_entry(child, &linkbus->devices, bus_list)
-		pcie_capability_write_word(child, PCI_EXP_LNKCTL,
+		/* Training failed. Restore common clock configurations */
+		pci_err(parent, "ASPM: Could not configure common clock\n");
+		list_for_each_entry(child, &linkbus->devices, bus_list)
+			pcie_capability_write_word(child, PCI_EXP_LNKCTL,
 					   child_reg[PCI_FUNC(child->devfn)]);
-	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, parent_reg);
+		pcie_capability_write_word(parent, PCI_EXP_LNKCTL, parent_reg);
+	}
 }
 
 /* Convert L0s latency encoding to ns */
-- 
2.39.2

[PATCH 5.15 014/155] PCI/ASPM: Factor out pcie_wait_for_retrain()

[Greg Kroah-Hartman]

From: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

[ Upstream commit 9c7f136433d26592cb4d9cd00b4e15c33d9797c6 ]

Factor pcie_wait_for_retrain() out from pcie_retrain_link().  No functional
change intended.

[bhelgaas: split out from
https: //lore.kernel.org/r/20230502083923.34562-1-ilpo.jarvinen@linux.intel.com]
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Stable-dep-of: e7e39756363a ("PCI/ASPM: Avoid link retraining race")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pcie/aspm.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index e7f742ff31c3c..5e09cbb563366 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -192,10 +192,26 @@ static void pcie_clkpm_cap_init(struct pcie_link_state *link, int blacklist)
 	link->clkpm_disable = blacklist ? 1 : 0;
 }
 
+static int pcie_wait_for_retrain(struct pci_dev *pdev)
+{
+	unsigned long end_jiffies;
+	u16 reg16;
+
+	/* Wait for Link Training to be cleared by hardware */
+	end_jiffies = jiffies + LINK_RETRAIN_TIMEOUT;
+	do {
+		pcie_capability_read_word(pdev, PCI_EXP_LNKSTA, &reg16);
+		if (!(reg16 & PCI_EXP_LNKSTA_LT))
+			return 0;
+		msleep(1);
+	} while (time_before(jiffies, end_jiffies));
+
+	return -ETIMEDOUT;
+}
+
 static int pcie_retrain_link(struct pcie_link_state *link)
 {
 	struct pci_dev *parent = link->pdev;
-	unsigned long end_jiffies;
 	u16 reg16;
 
 	pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &reg16);
@@ -211,17 +227,7 @@ static int pcie_retrain_link(struct pcie_link_state *link)
 		pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
 	}
 
-	/* Wait for link training end. Break out after waiting for timeout */
-	end_jiffies = jiffies + LINK_RETRAIN_TIMEOUT;
-	do {
-		pcie_capability_read_word(parent, PCI_EXP_LNKSTA, &reg16);
-		if (!(reg16 & PCI_EXP_LNKSTA_LT))
-			break;
-		msleep(1);
-	} while (time_before(jiffies, end_jiffies));
-	if (reg16 & PCI_EXP_LNKSTA_LT)
-		return -ETIMEDOUT;
-	return 0;
+	return pcie_wait_for_retrain(parent);
 }
 
 /*
-- 
2.39.2

[PATCH 5.15 015/155] PCI/ASPM: Avoid link retraining race

[Greg Kroah-Hartman]

From: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

[ Upstream commit e7e39756363ad5bd83ddeae1063193d0f13870fd ]

PCIe r6.0.1, sec 7.5.3.7, recommends setting the link control parameters,
then waiting for the Link Training bit to be clear before setting the
Retrain Link bit.

This avoids a race where the LTSSM may not use the updated parameters if it
is already in the midst of link training because of other normal link
activity.

Wait for the Link Training bit to be clear before toggling the Retrain Link
bit to ensure that the LTSSM uses the updated link control parameters.

[bhelgaas: commit log, return 0 (success)/-ETIMEDOUT instead of bool for
both pcie_wait_for_retrain() and the existing pcie_retrain_link()]
Suggested-by: Lukas Wunner <lukas@wunner.de>
Fixes: 7d715a6c1ae5 ("PCI: add PCI Express ASPM support")
Link: https://lore.kernel.org/r/20230502083923.34562-1-ilpo.jarvinen@linux.intel.com
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Lukas Wunner <lukas@wunner.de>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/pcie/aspm.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/pci/pcie/aspm.c b/drivers/pci/pcie/aspm.c
index 5e09cbb563366..3078de668f911 100644
--- a/drivers/pci/pcie/aspm.c
+++ b/drivers/pci/pcie/aspm.c
@@ -212,8 +212,19 @@ static int pcie_wait_for_retrain(struct pci_dev *pdev)
 static int pcie_retrain_link(struct pcie_link_state *link)
 {
 	struct pci_dev *parent = link->pdev;
+	int rc;
 	u16 reg16;
 
+	/*
+	 * Ensure the updated LNKCTL parameters are used during link
+	 * training by checking that there is no ongoing link training to
+	 * avoid LTSSM race as recommended in Implementation Note at the
+	 * end of PCIe r6.0.1 sec 7.5.3.7.
+	 */
+	rc = pcie_wait_for_retrain(parent);
+	if (rc)
+		return rc;
+
 	pcie_capability_read_word(parent, PCI_EXP_LNKCTL, &reg16);
 	reg16 |= PCI_EXP_LNKCTL_RL;
 	pcie_capability_write_word(parent, PCI_EXP_LNKCTL, reg16);
-- 
2.39.2

[PATCH 5.15 016/155] PCI: rockchip: Remove writes to unused registers

[Greg Kroah-Hartman]

From: Rick Wertenbroek <rick.wertenbroek@gmail.com>

[ Upstream commit 92a9c57c325dd51682d428ba960d961fec3c8a08 ]

Remove write accesses to registers that are marked "unused" (and
therefore read-only) in the technical reference manual (TRM)
(see RK3399 TRM 17.6.8.1)

Link: https://lore.kernel.org/r/20230418074700.1083505-2-rick.wertenbroek@gmail.com
Tested-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Stable-dep-of: dc73ed0f1b8b ("PCI: rockchip: Fix window mapping and address translation for endpoint")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pcie-rockchip-ep.c | 10 ----------
 1 file changed, 10 deletions(-)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 827d91e73efab..9e17f3dba743a 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -61,10 +61,6 @@ static void rockchip_pcie_clear_ep_ob_atu(struct rockchip_pcie *rockchip,
 			    ROCKCHIP_PCIE_AT_OB_REGION_DESC0(region));
 	rockchip_pcie_write(rockchip, 0,
 			    ROCKCHIP_PCIE_AT_OB_REGION_DESC1(region));
-	rockchip_pcie_write(rockchip, 0,
-			    ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR0(region));
-	rockchip_pcie_write(rockchip, 0,
-			    ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR1(region));
 }
 
 static void rockchip_pcie_prog_ep_ob_atu(struct rockchip_pcie *rockchip, u8 fn,
@@ -114,12 +110,6 @@ static void rockchip_pcie_prog_ep_ob_atu(struct rockchip_pcie *rockchip, u8 fn,
 		     PCIE_CORE_OB_REGION_ADDR0_LO_ADDR);
 		addr1 = upper_32_bits(cpu_addr);
 	}
-
-	/* CPU bus address region */
-	rockchip_pcie_write(rockchip, addr0,
-			    ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR0(r));
-	rockchip_pcie_write(rockchip, addr1,
-			    ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR1(r));
 }
 
 static int rockchip_pcie_ep_write_header(struct pci_epc *epc, u8 fn, u8 vfn,
-- 
2.39.2

[PATCH 5.15 017/155] PCI: rockchip: Fix window mapping and address translation for endpoint

[Greg Kroah-Hartman]

From: Rick Wertenbroek <rick.wertenbroek@gmail.com>

[ Upstream commit dc73ed0f1b8bddd7f2bf70d123e68ffc99ad71ce ]

The RK3399 PCI endpoint core has 33 windows for PCIe space, now in the
driver up to 32 fixed size (1M) windows are used and pages are allocated
and mapped accordingly. The driver first used a single window and allocated
space inside which caused translation issues (between CPU space and PCI
space) because a window can only have a single translation at a given
time, which if multiple pages are allocated inside will cause conflicts.
Now each window is a single region of 1M which will always guarantee that
the translation is not in conflict.

Set the translation register addresses for physical function. As documented
in the technical reference manual (TRM) section 17.5.5 "PCIe Address
Translation" and section 17.6.8 "Address Translation Registers Description"

Link: https://lore.kernel.org/r/20230418074700.1083505-9-rick.wertenbroek@gmail.com
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Tested-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pcie-rockchip-ep.c | 128 ++++++++++------------
 drivers/pci/controller/pcie-rockchip.h    |  35 +++---
 2 files changed, 75 insertions(+), 88 deletions(-)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 9e17f3dba743a..3d6f828d29fc2 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -64,52 +64,29 @@ static void rockchip_pcie_clear_ep_ob_atu(struct rockchip_pcie *rockchip,
 }
 
 static void rockchip_pcie_prog_ep_ob_atu(struct rockchip_pcie *rockchip, u8 fn,
-					 u32 r, u32 type, u64 cpu_addr,
-					 u64 pci_addr, size_t size)
+					 u32 r, u64 cpu_addr, u64 pci_addr,
+					 size_t size)
 {
-	u64 sz = 1ULL << fls64(size - 1);
-	int num_pass_bits = ilog2(sz);
-	u32 addr0, addr1, desc0, desc1;
-	bool is_nor_msg = (type == AXI_WRAPPER_NOR_MSG);
+	int num_pass_bits = fls64(size - 1);
+	u32 addr0, addr1, desc0;
 
-	/* The minimal region size is 1MB */
 	if (num_pass_bits < 8)
 		num_pass_bits = 8;
 
-	cpu_addr -= rockchip->mem_res->start;
-	addr0 = ((is_nor_msg ? 0x10 : (num_pass_bits - 1)) &
-		PCIE_CORE_OB_REGION_ADDR0_NUM_BITS) |
-		(lower_32_bits(cpu_addr) & PCIE_CORE_OB_REGION_ADDR0_LO_ADDR);
-	addr1 = upper_32_bits(is_nor_msg ? cpu_addr : pci_addr);
-	desc0 = ROCKCHIP_PCIE_AT_OB_REGION_DESC0_DEVFN(fn) | type;
-	desc1 = 0;
-
-	if (is_nor_msg) {
-		rockchip_pcie_write(rockchip, 0,
-				    ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0(r));
-		rockchip_pcie_write(rockchip, 0,
-				    ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR1(r));
-		rockchip_pcie_write(rockchip, desc0,
-				    ROCKCHIP_PCIE_AT_OB_REGION_DESC0(r));
-		rockchip_pcie_write(rockchip, desc1,
-				    ROCKCHIP_PCIE_AT_OB_REGION_DESC1(r));
-	} else {
-		/* PCI bus address region */
-		rockchip_pcie_write(rockchip, addr0,
-				    ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0(r));
-		rockchip_pcie_write(rockchip, addr1,
-				    ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR1(r));
-		rockchip_pcie_write(rockchip, desc0,
-				    ROCKCHIP_PCIE_AT_OB_REGION_DESC0(r));
-		rockchip_pcie_write(rockchip, desc1,
-				    ROCKCHIP_PCIE_AT_OB_REGION_DESC1(r));
-
-		addr0 =
-		    ((num_pass_bits - 1) & PCIE_CORE_OB_REGION_ADDR0_NUM_BITS) |
-		    (lower_32_bits(cpu_addr) &
-		     PCIE_CORE_OB_REGION_ADDR0_LO_ADDR);
-		addr1 = upper_32_bits(cpu_addr);
-	}
+	addr0 = ((num_pass_bits - 1) & PCIE_CORE_OB_REGION_ADDR0_NUM_BITS) |
+		(lower_32_bits(pci_addr) & PCIE_CORE_OB_REGION_ADDR0_LO_ADDR);
+	addr1 = upper_32_bits(pci_addr);
+	desc0 = ROCKCHIP_PCIE_AT_OB_REGION_DESC0_DEVFN(fn) | AXI_WRAPPER_MEM_WRITE;
+
+	/* PCI bus address region */
+	rockchip_pcie_write(rockchip, addr0,
+			    ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0(r));
+	rockchip_pcie_write(rockchip, addr1,
+			    ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR1(r));
+	rockchip_pcie_write(rockchip, desc0,
+			    ROCKCHIP_PCIE_AT_OB_REGION_DESC0(r));
+	rockchip_pcie_write(rockchip, 0,
+			    ROCKCHIP_PCIE_AT_OB_REGION_DESC1(r));
 }
 
 static int rockchip_pcie_ep_write_header(struct pci_epc *epc, u8 fn, u8 vfn,
@@ -248,26 +225,20 @@ static void rockchip_pcie_ep_clear_bar(struct pci_epc *epc, u8 fn, u8 vfn,
 			    ROCKCHIP_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar));
 }
 
+static inline u32 rockchip_ob_region(phys_addr_t addr)
+{
+	return (addr >> ilog2(SZ_1M)) & 0x1f;
+}
+
 static int rockchip_pcie_ep_map_addr(struct pci_epc *epc, u8 fn, u8 vfn,
 				     phys_addr_t addr, u64 pci_addr,
 				     size_t size)
 {
 	struct rockchip_pcie_ep *ep = epc_get_drvdata(epc);
 	struct rockchip_pcie *pcie = &ep->rockchip;
-	u32 r;
+	u32 r = rockchip_ob_region(addr);
 
-	r = find_first_zero_bit(&ep->ob_region_map, BITS_PER_LONG);
-	/*
-	 * Region 0 is reserved for configuration space and shouldn't
-	 * be used elsewhere per TRM, so leave it out.
-	 */
-	if (r >= ep->max_regions - 1) {
-		dev_err(&epc->dev, "no free outbound region\n");
-		return -EINVAL;
-	}
-
-	rockchip_pcie_prog_ep_ob_atu(pcie, fn, r, AXI_WRAPPER_MEM_WRITE, addr,
-				     pci_addr, size);
+	rockchip_pcie_prog_ep_ob_atu(pcie, fn, r, addr, pci_addr, size);
 
 	set_bit(r, &ep->ob_region_map);
 	ep->ob_addr[r] = addr;
@@ -282,15 +253,11 @@ static void rockchip_pcie_ep_unmap_addr(struct pci_epc *epc, u8 fn, u8 vfn,
 	struct rockchip_pcie *rockchip = &ep->rockchip;
 	u32 r;
 
-	for (r = 0; r < ep->max_regions - 1; r++)
+	for (r = 0; r < ep->max_regions; r++)
 		if (ep->ob_addr[r] == addr)
 			break;
 
-	/*
-	 * Region 0 is reserved for configuration space and shouldn't
-	 * be used elsewhere per TRM, so leave it out.
-	 */
-	if (r == ep->max_regions - 1)
+	if (r == ep->max_regions)
 		return;
 
 	rockchip_pcie_clear_ep_ob_atu(rockchip, r);
@@ -387,7 +354,8 @@ static int rockchip_pcie_ep_send_msi_irq(struct rockchip_pcie_ep *ep, u8 fn,
 	struct rockchip_pcie *rockchip = &ep->rockchip;
 	u32 flags, mme, data, data_mask;
 	u8 msi_count;
-	u64 pci_addr, pci_addr_mask = 0xff;
+	u64 pci_addr;
+	u32 r;
 
 	/* Check MSI enable bit */
 	flags = rockchip_pcie_read(&ep->rockchip,
@@ -421,21 +389,20 @@ static int rockchip_pcie_ep_send_msi_irq(struct rockchip_pcie_ep *ep, u8 fn,
 				       ROCKCHIP_PCIE_EP_FUNC_BASE(fn) +
 				       ROCKCHIP_PCIE_EP_MSI_CTRL_REG +
 				       PCI_MSI_ADDRESS_LO);
-	pci_addr &= GENMASK_ULL(63, 2);
 
 	/* Set the outbound region if needed. */
-	if (unlikely(ep->irq_pci_addr != (pci_addr & ~pci_addr_mask) ||
+	if (unlikely(ep->irq_pci_addr != (pci_addr & PCIE_ADDR_MASK) ||
 		     ep->irq_pci_fn != fn)) {
-		rockchip_pcie_prog_ep_ob_atu(rockchip, fn, ep->max_regions - 1,
-					     AXI_WRAPPER_MEM_WRITE,
+		r = rockchip_ob_region(ep->irq_phys_addr);
+		rockchip_pcie_prog_ep_ob_atu(rockchip, fn, r,
 					     ep->irq_phys_addr,
-					     pci_addr & ~pci_addr_mask,
-					     pci_addr_mask + 1);
-		ep->irq_pci_addr = (pci_addr & ~pci_addr_mask);
+					     pci_addr & PCIE_ADDR_MASK,
+					     ~PCIE_ADDR_MASK + 1);
+		ep->irq_pci_addr = (pci_addr & PCIE_ADDR_MASK);
 		ep->irq_pci_fn = fn;
 	}
 
-	writew(data, ep->irq_cpu_addr + (pci_addr & pci_addr_mask));
+	writew(data, ep->irq_cpu_addr + (pci_addr & ~PCIE_ADDR_MASK));
 	return 0;
 }
 
@@ -517,6 +484,8 @@ static int rockchip_pcie_parse_ep_dt(struct rockchip_pcie *rockchip,
 	if (err < 0 || ep->max_regions > MAX_REGION_LIMIT)
 		ep->max_regions = MAX_REGION_LIMIT;
 
+	ep->ob_region_map = 0;
+
 	err = of_property_read_u8(dev->of_node, "max-functions",
 				  &ep->epc->max_functions);
 	if (err < 0)
@@ -537,7 +506,8 @@ static int rockchip_pcie_ep_probe(struct platform_device *pdev)
 	struct rockchip_pcie *rockchip;
 	struct pci_epc *epc;
 	size_t max_regions;
-	int err;
+	struct pci_epc_mem_window *windows = NULL;
+	int err, i;
 
 	ep = devm_kzalloc(dev, sizeof(*ep), GFP_KERNEL);
 	if (!ep)
@@ -584,15 +554,27 @@ static int rockchip_pcie_ep_probe(struct platform_device *pdev)
 	/* Only enable function 0 by default */
 	rockchip_pcie_write(rockchip, BIT(0), PCIE_CORE_PHY_FUNC_CFG);
 
-	err = pci_epc_mem_init(epc, rockchip->mem_res->start,
-			       resource_size(rockchip->mem_res), PAGE_SIZE);
+	windows = devm_kcalloc(dev, ep->max_regions,
+			       sizeof(struct pci_epc_mem_window), GFP_KERNEL);
+	if (!windows) {
+		err = -ENOMEM;
+		goto err_uninit_port;
+	}
+	for (i = 0; i < ep->max_regions; i++) {
+		windows[i].phys_base = rockchip->mem_res->start + (SZ_1M * i);
+		windows[i].size = SZ_1M;
+		windows[i].page_size = SZ_1M;
+	}
+	err = pci_epc_multi_mem_init(epc, windows, ep->max_regions);
+	devm_kfree(dev, windows);
+
 	if (err < 0) {
 		dev_err(dev, "failed to initialize the memory space\n");
 		goto err_uninit_port;
 	}
 
 	ep->irq_cpu_addr = pci_epc_mem_alloc_addr(epc, &ep->irq_phys_addr,
-						  SZ_128K);
+						  SZ_1M);
 	if (!ep->irq_cpu_addr) {
 		dev_err(dev, "failed to reserve memory space for MSI\n");
 		err = -ENOMEM;
diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h
index cbd2fd25ba761..498a40251d0be 100644
--- a/drivers/pci/controller/pcie-rockchip.h
+++ b/drivers/pci/controller/pcie-rockchip.h
@@ -139,6 +139,7 @@
 
 #define PCIE_RC_RP_ATS_BASE		0x400000
 #define PCIE_RC_CONFIG_NORMAL_BASE	0x800000
+#define PCIE_EP_PF_CONFIG_REGS_BASE	0x800000
 #define PCIE_RC_CONFIG_BASE		0xa00000
 #define PCIE_EP_CONFIG_BASE		0xa00000
 #define PCIE_EP_CONFIG_DID_VID		(PCIE_EP_CONFIG_BASE + 0x00)
@@ -158,10 +159,11 @@
 #define PCIE_RC_CONFIG_THP_CAP		(PCIE_RC_CONFIG_BASE + 0x274)
 #define   PCIE_RC_CONFIG_THP_CAP_NEXT_MASK	GENMASK(31, 20)
 
+#define PCIE_ADDR_MASK			0xffffff00
 #define PCIE_CORE_AXI_CONF_BASE		0xc00000
 #define PCIE_CORE_OB_REGION_ADDR0	(PCIE_CORE_AXI_CONF_BASE + 0x0)
 #define   PCIE_CORE_OB_REGION_ADDR0_NUM_BITS	0x3f
-#define   PCIE_CORE_OB_REGION_ADDR0_LO_ADDR	0xffffff00
+#define   PCIE_CORE_OB_REGION_ADDR0_LO_ADDR	PCIE_ADDR_MASK
 #define PCIE_CORE_OB_REGION_ADDR1	(PCIE_CORE_AXI_CONF_BASE + 0x4)
 #define PCIE_CORE_OB_REGION_DESC0	(PCIE_CORE_AXI_CONF_BASE + 0x8)
 #define PCIE_CORE_OB_REGION_DESC1	(PCIE_CORE_AXI_CONF_BASE + 0xc)
@@ -169,7 +171,7 @@
 #define PCIE_CORE_AXI_INBOUND_BASE	0xc00800
 #define PCIE_RP_IB_ADDR0		(PCIE_CORE_AXI_INBOUND_BASE + 0x0)
 #define   PCIE_CORE_IB_REGION_ADDR0_NUM_BITS	0x3f
-#define   PCIE_CORE_IB_REGION_ADDR0_LO_ADDR	0xffffff00
+#define   PCIE_CORE_IB_REGION_ADDR0_LO_ADDR	PCIE_ADDR_MASK
 #define PCIE_RP_IB_ADDR1		(PCIE_CORE_AXI_INBOUND_BASE + 0x4)
 
 /* Size of one AXI Region (not Region 0) */
@@ -234,13 +236,15 @@
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_ME				BIT(16)
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_MASK_MSI_CAP	BIT(24)
 #define ROCKCHIP_PCIE_EP_DUMMY_IRQ_ADDR				0x1
-#define ROCKCHIP_PCIE_EP_FUNC_BASE(fn)	(((fn) << 12) & GENMASK(19, 12))
+#define ROCKCHIP_PCIE_EP_PCI_LEGACY_IRQ_ADDR		0x3
+#define ROCKCHIP_PCIE_EP_FUNC_BASE(fn) \
+	(PCIE_EP_PF_CONFIG_REGS_BASE + (((fn) << 12) & GENMASK(19, 12)))
+#define ROCKCHIP_PCIE_EP_VIRT_FUNC_BASE(fn) \
+	(PCIE_EP_PF_CONFIG_REGS_BASE + 0x10000 + (((fn) << 12) & GENMASK(19, 12)))
 #define ROCKCHIP_PCIE_AT_IB_EP_FUNC_BAR_ADDR0(fn, bar) \
-	(PCIE_RC_RP_ATS_BASE + 0x0840 + (fn) * 0x0040 + (bar) * 0x0008)
+	(PCIE_CORE_AXI_CONF_BASE + 0x0828 + (fn) * 0x0040 + (bar) * 0x0008)
 #define ROCKCHIP_PCIE_AT_IB_EP_FUNC_BAR_ADDR1(fn, bar) \
-	(PCIE_RC_RP_ATS_BASE + 0x0844 + (fn) * 0x0040 + (bar) * 0x0008)
-#define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0(r) \
-	(PCIE_RC_RP_ATS_BASE + 0x0000 + ((r) & 0x1f) * 0x0020)
+	(PCIE_CORE_AXI_CONF_BASE + 0x082c + (fn) * 0x0040 + (bar) * 0x0008)
 #define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0_DEVFN_MASK	GENMASK(19, 12)
 #define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0_DEVFN(devfn) \
 	(((devfn) << 12) & \
@@ -248,20 +252,21 @@
 #define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0_BUS_MASK	GENMASK(27, 20)
 #define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0_BUS(bus) \
 		(((bus) << 20) & ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0_BUS_MASK)
+#define PCIE_RC_EP_ATR_OB_REGIONS_1_32 (PCIE_CORE_AXI_CONF_BASE + 0x0020)
+#define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR0(r) \
+		(PCIE_RC_EP_ATR_OB_REGIONS_1_32 + 0x0000 + ((r) & 0x1f) * 0x0020)
 #define ROCKCHIP_PCIE_AT_OB_REGION_PCI_ADDR1(r) \
-		(PCIE_RC_RP_ATS_BASE + 0x0004 + ((r) & 0x1f) * 0x0020)
+		(PCIE_RC_EP_ATR_OB_REGIONS_1_32 + 0x0004 + ((r) & 0x1f) * 0x0020)
 #define ROCKCHIP_PCIE_AT_OB_REGION_DESC0_HARDCODED_RID	BIT(23)
 #define ROCKCHIP_PCIE_AT_OB_REGION_DESC0_DEVFN_MASK	GENMASK(31, 24)
 #define ROCKCHIP_PCIE_AT_OB_REGION_DESC0_DEVFN(devfn) \
 		(((devfn) << 24) & ROCKCHIP_PCIE_AT_OB_REGION_DESC0_DEVFN_MASK)
 #define ROCKCHIP_PCIE_AT_OB_REGION_DESC0(r) \
-		(PCIE_RC_RP_ATS_BASE + 0x0008 + ((r) & 0x1f) * 0x0020)
-#define ROCKCHIP_PCIE_AT_OB_REGION_DESC1(r)	\
-		(PCIE_RC_RP_ATS_BASE + 0x000c + ((r) & 0x1f) * 0x0020)
-#define ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR0(r) \
-		(PCIE_RC_RP_ATS_BASE + 0x0018 + ((r) & 0x1f) * 0x0020)
-#define ROCKCHIP_PCIE_AT_OB_REGION_CPU_ADDR1(r) \
-		(PCIE_RC_RP_ATS_BASE + 0x001c + ((r) & 0x1f) * 0x0020)
+		(PCIE_RC_EP_ATR_OB_REGIONS_1_32 + 0x0008 + ((r) & 0x1f) * 0x0020)
+#define ROCKCHIP_PCIE_AT_OB_REGION_DESC1(r) \
+		(PCIE_RC_EP_ATR_OB_REGIONS_1_32 + 0x000c + ((r) & 0x1f) * 0x0020)
+#define ROCKCHIP_PCIE_AT_OB_REGION_DESC2(r) \
+		(PCIE_RC_EP_ATR_OB_REGIONS_1_32 + 0x0010 + ((r) & 0x1f) * 0x0020)
 
 #define ROCKCHIP_PCIE_CORE_EP_FUNC_BAR_CFG0(fn) \
 		(PCIE_CORE_CTRL_MGMT_BASE + 0x0240 + (fn) * 0x0008)
-- 
2.39.2

[PATCH 5.15 018/155] PCI: rockchip: Dont advertise MSI-X in PCIe capabilities

[Greg Kroah-Hartman]

From: Rick Wertenbroek <rick.wertenbroek@gmail.com>

[ Upstream commit a52587e0bee14cbeeadf48a24013828cb04b8df8 ]

The RK3399 PCIe endpoint controller cannot generate MSI-X IRQs.
This is documented in the RK3399 technical reference manual (TRM)
section 17.5.9 "Interrupt Support".

MSI-X capability should therefore not be advertised. Remove the
MSI-X capability by editing the capability linked-list. The
previous entry is the MSI capability, therefore get the next
entry from the MSI-X capability entry and set it as next entry
for the MSI capability. This in effect removes MSI-X from the list.

Linked list before : MSI cap -> MSI-X cap -> PCIe Device cap -> ...
Linked list now : MSI cap -> PCIe Device cap -> ...

Link: https://lore.kernel.org/r/20230418074700.1083505-11-rick.wertenbroek@gmail.com
Fixes: cf590b078391 ("PCI: rockchip: Add EP driver for Rockchip PCIe controller")
Tested-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Rick Wertenbroek <rick.wertenbroek@gmail.com>
Signed-off-by: Lorenzo Pieralisi <lpieralisi@kernel.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Cc: stable@vger.kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pci/controller/pcie-rockchip-ep.c | 24 +++++++++++++++++++++++
 drivers/pci/controller/pcie-rockchip.h    |  5 +++++
 2 files changed, 29 insertions(+)

diff --git a/drivers/pci/controller/pcie-rockchip-ep.c b/drivers/pci/controller/pcie-rockchip-ep.c
index 3d6f828d29fc2..0af0e965fb57e 100644
--- a/drivers/pci/controller/pcie-rockchip-ep.c
+++ b/drivers/pci/controller/pcie-rockchip-ep.c
@@ -508,6 +508,7 @@ static int rockchip_pcie_ep_probe(struct platform_device *pdev)
 	size_t max_regions;
 	struct pci_epc_mem_window *windows = NULL;
 	int err, i;
+	u32 cfg_msi, cfg_msix_cp;
 
 	ep = devm_kzalloc(dev, sizeof(*ep), GFP_KERNEL);
 	if (!ep)
@@ -583,6 +584,29 @@ static int rockchip_pcie_ep_probe(struct platform_device *pdev)
 
 	ep->irq_pci_addr = ROCKCHIP_PCIE_EP_DUMMY_IRQ_ADDR;
 
+	/*
+	 * MSI-X is not supported but the controller still advertises the MSI-X
+	 * capability by default, which can lead to the Root Complex side
+	 * allocating MSI-X vectors which cannot be used. Avoid this by skipping
+	 * the MSI-X capability entry in the PCIe capabilities linked-list: get
+	 * the next pointer from the MSI-X entry and set that in the MSI
+	 * capability entry (which is the previous entry). This way the MSI-X
+	 * entry is skipped (left out of the linked-list) and not advertised.
+	 */
+	cfg_msi = rockchip_pcie_read(rockchip, PCIE_EP_CONFIG_BASE +
+				     ROCKCHIP_PCIE_EP_MSI_CTRL_REG);
+
+	cfg_msi &= ~ROCKCHIP_PCIE_EP_MSI_CP1_MASK;
+
+	cfg_msix_cp = rockchip_pcie_read(rockchip, PCIE_EP_CONFIG_BASE +
+					 ROCKCHIP_PCIE_EP_MSIX_CAP_REG) &
+					 ROCKCHIP_PCIE_EP_MSIX_CAP_CP_MASK;
+
+	cfg_msi |= cfg_msix_cp;
+
+	rockchip_pcie_write(rockchip, cfg_msi,
+			    PCIE_EP_CONFIG_BASE + ROCKCHIP_PCIE_EP_MSI_CTRL_REG);
+
 	rockchip_pcie_write(rockchip, PCIE_CLIENT_CONF_ENABLE,
 			    PCIE_CLIENT_CONFIG);
 
diff --git a/drivers/pci/controller/pcie-rockchip.h b/drivers/pci/controller/pcie-rockchip.h
index 498a40251d0be..88e2bf65e433a 100644
--- a/drivers/pci/controller/pcie-rockchip.h
+++ b/drivers/pci/controller/pcie-rockchip.h
@@ -228,6 +228,8 @@
 #define ROCKCHIP_PCIE_EP_CMD_STATUS			0x4
 #define   ROCKCHIP_PCIE_EP_CMD_STATUS_IS		BIT(19)
 #define ROCKCHIP_PCIE_EP_MSI_CTRL_REG			0x90
+#define   ROCKCHIP_PCIE_EP_MSI_CP1_OFFSET		8
+#define   ROCKCHIP_PCIE_EP_MSI_CP1_MASK			GENMASK(15, 8)
 #define   ROCKCHIP_PCIE_EP_MSI_FLAGS_OFFSET		16
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_MMC_OFFSET		17
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_MMC_MASK		GENMASK(19, 17)
@@ -235,6 +237,9 @@
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_MME_MASK		GENMASK(22, 20)
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_ME				BIT(16)
 #define   ROCKCHIP_PCIE_EP_MSI_CTRL_MASK_MSI_CAP	BIT(24)
+#define ROCKCHIP_PCIE_EP_MSIX_CAP_REG			0xb0
+#define   ROCKCHIP_PCIE_EP_MSIX_CAP_CP_OFFSET		8
+#define   ROCKCHIP_PCIE_EP_MSIX_CAP_CP_MASK		GENMASK(15, 8)
 #define ROCKCHIP_PCIE_EP_DUMMY_IRQ_ADDR				0x1
 #define ROCKCHIP_PCIE_EP_PCI_LEGACY_IRQ_ADDR		0x3
 #define ROCKCHIP_PCIE_EP_FUNC_BASE(fn) \
-- 
2.39.2

[PATCH 5.15 019/155] dlm: cleanup plock_op vs plock_xop

[Greg Kroah-Hartman]

From: Alexander Aring <aahringo@redhat.com>

[ Upstream commit bcbb4ba6c9ba81e6975b642a2cade68044cd8a66 ]

Lately the different casting between plock_op and plock_xop and list
holders which was involved showed some issues which were hard to see.
This patch removes the "plock_xop" structure and introduces a
"struct plock_async_data". This structure will be set in "struct plock_op"
in case of asynchronous lock handling as the original "plock_xop" was
made for. There is no need anymore to cast pointers around for
additional fields in case of asynchronous lock handling.  As disadvantage
another allocation was introduces but only needed in the asynchronous
case which is currently only used in combination with nfs lockd.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: 59e45c758ca1 ("fs: dlm: interrupt posix locks only when process is killed")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/plock.c | 77 ++++++++++++++++++++++++++++++--------------------
 1 file changed, 46 insertions(+), 31 deletions(-)

diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index edce0b25cd90e..e70e23eca03ec 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -19,20 +19,20 @@ static struct list_head recv_list;
 static wait_queue_head_t send_wq;
 static wait_queue_head_t recv_wq;
 
-struct plock_op {
-	struct list_head list;
-	int done;
-	struct dlm_plock_info info;
-	int (*callback)(struct file_lock *fl, int result);
-};
-
-struct plock_xop {
-	struct plock_op xop;
+struct plock_async_data {
 	void *fl;
 	void *file;
 	struct file_lock flc;
+	int (*callback)(struct file_lock *fl, int result);
 };
 
+struct plock_op {
+	struct list_head list;
+	int done;
+	struct dlm_plock_info info;
+	/* if set indicates async handling */
+	struct plock_async_data *data;
+};
 
 static inline void set_version(struct dlm_plock_info *info)
 {
@@ -58,6 +58,12 @@ static int check_version(struct dlm_plock_info *info)
 	return 0;
 }
 
+static void dlm_release_plock_op(struct plock_op *op)
+{
+	kfree(op->data);
+	kfree(op);
+}
+
 static void send_op(struct plock_op *op)
 {
 	set_version(&op->info);
@@ -101,22 +107,21 @@ static void do_unlock_close(struct dlm_ls *ls, u64 number,
 int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 		   int cmd, struct file_lock *fl)
 {
+	struct plock_async_data *op_data;
 	struct dlm_ls *ls;
 	struct plock_op *op;
-	struct plock_xop *xop;
 	int rv;
 
 	ls = dlm_find_lockspace_local(lockspace);
 	if (!ls)
 		return -EINVAL;
 
-	xop = kzalloc(sizeof(*xop), GFP_NOFS);
-	if (!xop) {
+	op = kzalloc(sizeof(*op), GFP_NOFS);
+	if (!op) {
 		rv = -ENOMEM;
 		goto out;
 	}
 
-	op = &xop->xop;
 	op->info.optype		= DLM_PLOCK_OP_LOCK;
 	op->info.pid		= fl->fl_pid;
 	op->info.ex		= (fl->fl_type == F_WRLCK);
@@ -125,22 +130,32 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 	op->info.number		= number;
 	op->info.start		= fl->fl_start;
 	op->info.end		= fl->fl_end;
+	/* async handling */
 	if (fl->fl_lmops && fl->fl_lmops->lm_grant) {
+		op_data = kzalloc(sizeof(*op_data), GFP_NOFS);
+		if (!op_data) {
+			dlm_release_plock_op(op);
+			rv = -ENOMEM;
+			goto out;
+		}
+
 		/* fl_owner is lockd which doesn't distinguish
 		   processes on the nfs client */
 		op->info.owner	= (__u64) fl->fl_pid;
-		op->callback	= fl->fl_lmops->lm_grant;
-		locks_init_lock(&xop->flc);
-		locks_copy_lock(&xop->flc, fl);
-		xop->fl		= fl;
-		xop->file	= file;
+		op_data->callback = fl->fl_lmops->lm_grant;
+		locks_init_lock(&op_data->flc);
+		locks_copy_lock(&op_data->flc, fl);
+		op_data->fl		= fl;
+		op_data->file	= file;
+
+		op->data = op_data;
 	} else {
 		op->info.owner	= (__u64)(long) fl->fl_owner;
 	}
 
 	send_op(op);
 
-	if (!op->callback) {
+	if (!op->data) {
 		rv = wait_event_interruptible(recv_wq, (op->done != 0));
 		if (rv == -ERESTARTSYS) {
 			log_debug(ls, "dlm_posix_lock: wait killed %llx",
@@ -148,7 +163,7 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 			spin_lock(&ops_lock);
 			list_del(&op->list);
 			spin_unlock(&ops_lock);
-			kfree(xop);
+			dlm_release_plock_op(op);
 			do_unlock_close(ls, number, file, fl);
 			goto out;
 		}
@@ -173,7 +188,7 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 				  (unsigned long long)number);
 	}
 
-	kfree(xop);
+	dlm_release_plock_op(op);
 out:
 	dlm_put_lockspace(ls);
 	return rv;
@@ -183,11 +198,11 @@ EXPORT_SYMBOL_GPL(dlm_posix_lock);
 /* Returns failure iff a successful lock operation should be canceled */
 static int dlm_plock_callback(struct plock_op *op)
 {
+	struct plock_async_data *op_data = op->data;
 	struct file *file;
 	struct file_lock *fl;
 	struct file_lock *flc;
 	int (*notify)(struct file_lock *fl, int result) = NULL;
-	struct plock_xop *xop = (struct plock_xop *)op;
 	int rv = 0;
 
 	spin_lock(&ops_lock);
@@ -199,10 +214,10 @@ static int dlm_plock_callback(struct plock_op *op)
 	spin_unlock(&ops_lock);
 
 	/* check if the following 2 are still valid or make a copy */
-	file = xop->file;
-	flc = &xop->flc;
-	fl = xop->fl;
-	notify = op->callback;
+	file = op_data->file;
+	flc = &op_data->flc;
+	fl = op_data->fl;
+	notify = op_data->callback;
 
 	if (op->info.rv) {
 		notify(fl, op->info.rv);
@@ -233,7 +248,7 @@ static int dlm_plock_callback(struct plock_op *op)
 	}
 
 out:
-	kfree(xop);
+	dlm_release_plock_op(op);
 	return rv;
 }
 
@@ -303,7 +318,7 @@ int dlm_posix_unlock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 		rv = 0;
 
 out_free:
-	kfree(op);
+	dlm_release_plock_op(op);
 out:
 	dlm_put_lockspace(ls);
 	fl->fl_flags = fl_flags;
@@ -371,7 +386,7 @@ int dlm_posix_get(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 		rv = 0;
 	}
 
-	kfree(op);
+	dlm_release_plock_op(op);
 out:
 	dlm_put_lockspace(ls);
 	return rv;
@@ -407,7 +422,7 @@ static ssize_t dev_read(struct file *file, char __user *u, size_t count,
 	   (the process did not make an unlock call). */
 
 	if (op->info.flags & DLM_PLOCK_FL_CLOSE)
-		kfree(op);
+		dlm_release_plock_op(op);
 
 	if (copy_to_user(u, &info, sizeof(info)))
 		return -EFAULT;
@@ -439,7 +454,7 @@ static ssize_t dev_write(struct file *file, const char __user *u, size_t count,
 		    op->info.owner == info.owner) {
 			list_del_init(&op->list);
 			memcpy(&op->info, &info, sizeof(info));
-			if (op->callback)
+			if (op->data)
 				do_callback = 1;
 			else
 				op->done = 1;
-- 
2.39.2

[PATCH 5.15 020/155] dlm: rearrange async condition return

[Greg Kroah-Hartman]

From: Alexander Aring <aahringo@redhat.com>

[ Upstream commit a800ba77fd285c6391a82819867ac64e9ab3af46 ]

This patch moves the return of FILE_LOCK_DEFERRED a little bit earlier
than checking afterwards again if the request was an asynchronous request.

Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Stable-dep-of: 59e45c758ca1 ("fs: dlm: interrupt posix locks only when process is killed")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/plock.c | 27 +++++++++++++--------------
 1 file changed, 13 insertions(+), 14 deletions(-)

diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index e70e23eca03ec..01fb7d8c0bca5 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -149,26 +149,25 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 		op_data->file	= file;
 
 		op->data = op_data;
+
+		send_op(op);
+		rv = FILE_LOCK_DEFERRED;
+		goto out;
 	} else {
 		op->info.owner	= (__u64)(long) fl->fl_owner;
 	}
 
 	send_op(op);
 
-	if (!op->data) {
-		rv = wait_event_interruptible(recv_wq, (op->done != 0));
-		if (rv == -ERESTARTSYS) {
-			log_debug(ls, "dlm_posix_lock: wait killed %llx",
-				  (unsigned long long)number);
-			spin_lock(&ops_lock);
-			list_del(&op->list);
-			spin_unlock(&ops_lock);
-			dlm_release_plock_op(op);
-			do_unlock_close(ls, number, file, fl);
-			goto out;
-		}
-	} else {
-		rv = FILE_LOCK_DEFERRED;
+	rv = wait_event_interruptible(recv_wq, (op->done != 0));
+	if (rv == -ERESTARTSYS) {
+		log_debug(ls, "%s: wait killed %llx", __func__,
+			  (unsigned long long)number);
+		spin_lock(&ops_lock);
+		list_del(&op->list);
+		spin_unlock(&ops_lock);
+		dlm_release_plock_op(op);
+		do_unlock_close(ls, number, file, fl);
 		goto out;
 	}
 
-- 
2.39.2

[PATCH 5.15 021/155] fs: dlm: interrupt posix locks only when process is killed

[Greg Kroah-Hartman]

From: Alexander Aring <aahringo@redhat.com>

[ Upstream commit 59e45c758ca1b9893ac923dd63536da946ac333b ]

If a posix lock request is waiting for a result from user space
(dlm_controld), do not let it be interrupted unless the process
is killed. This reverts commit a6b1533e9a57 ("dlm: make posix locks
interruptible"). The problem with the interruptible change is
that all locks were cleared on any signal interrupt. If a signal
was received that did not terminate the process, the process
could continue running after all its dlm posix locks had been
cleared. A future patch will add cancelation to allow proper
interruption.

Cc: stable@vger.kernel.org
Fixes: a6b1533e9a57 ("dlm: make posix locks interruptible")
Signed-off-by: Alexander Aring <aahringo@redhat.com>
Signed-off-by: David Teigland <teigland@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/dlm/plock.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/dlm/plock.c b/fs/dlm/plock.c
index 01fb7d8c0bca5..f3482e936cc25 100644
--- a/fs/dlm/plock.c
+++ b/fs/dlm/plock.c
@@ -159,7 +159,7 @@ int dlm_posix_lock(dlm_lockspace_t *lockspace, u64 number, struct file *file,
 
 	send_op(op);
 
-	rv = wait_event_interruptible(recv_wq, (op->done != 0));
+	rv = wait_event_killable(recv_wq, (op->done != 0));
 	if (rv == -ERESTARTSYS) {
 		log_debug(ls, "%s: wait killed %llx", __func__,
 			  (unsigned long long)number);
-- 
2.39.2

[PATCH 5.15 022/155] drm/ttm: Dont print error message if eviction was interrupted

[Greg Kroah-Hartman]

From: Thomas Hellström <thomas.hellstrom@linux.intel.com>

[ Upstream commit 8ab3b0663e279ab550bc2c0b5d602960e8b94e02 ]

Avoid printing an error message if eviction was interrupted by,
for example, the user pressing CTRL-C. That may happen if eviction
is waiting for something, like for example a free batch-buffer.

Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230307144621.10748-6-thomas.hellstrom@linux.intel.com
Stable-dep-of: e8188c461ee0 ("drm/ttm: Don't leak a resource on eviction error")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index d5a2b69489e7f..cf390ab636978 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -557,7 +557,8 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo,
 	if (ret == -EMULTIHOP) {
 		ret = ttm_bo_bounce_temp_buffer(bo, &evict_mem, ctx, &hop);
 		if (ret) {
-			pr_err("Buffer eviction failed\n");
+			if (ret != -ERESTARTSYS && ret != -EINTR)
+				pr_err("Buffer eviction failed\n");
 			ttm_resource_free(bo, &evict_mem);
 			goto out;
 		}
-- 
2.39.2

[PATCH 5.15 023/155] drm/ttm: Dont leak a resource on eviction error

[Greg Kroah-Hartman]

From: Thomas Hellström <thomas.hellstrom@linux.intel.com>

[ Upstream commit e8188c461ee015ba0b9ab2fc82dbd5ebca5a5532 ]

On eviction errors other than -EMULTIHOP we were leaking a resource.
Fix.

v2:
- Avoid yet another goto (Andi Shyti)

Fixes: 403797925768 ("drm/ttm: Fix multihop assert on eviction.")
Cc: Andrey Grodzovsky <andrey.grodzovsky@amd.com>
Cc: Christian König <christian.koenig@amd.com>
Cc: Christian Koenig <christian.koenig@amd.com>
Cc: Huang Rui <ray.huang@amd.com>
Cc: dri-devel@lists.freedesktop.org
Cc: <stable@vger.kernel.org> # v5.15+
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Reviewed-by: Nirmoy Das <nirmoy.das@intel.com> #v1
Reviewed-by: Andi Shyti <andi.shyti@linux.intel.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230626091450.14757-4-thomas.hellstrom@linux.intel.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 22 +++++++++++-----------
 1 file changed, 11 insertions(+), 11 deletions(-)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index cf390ab636978..6080f4b5c450c 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -552,18 +552,18 @@ static int ttm_bo_evict(struct ttm_buffer_object *bo,
 		goto out;
 	}
 
-bounce:
-	ret = ttm_bo_handle_move_mem(bo, evict_mem, true, ctx, &hop);
-	if (ret == -EMULTIHOP) {
+	do {
+		ret = ttm_bo_handle_move_mem(bo, evict_mem, true, ctx, &hop);
+		if (ret != -EMULTIHOP)
+			break;
+
 		ret = ttm_bo_bounce_temp_buffer(bo, &evict_mem, ctx, &hop);
-		if (ret) {
-			if (ret != -ERESTARTSYS && ret != -EINTR)
-				pr_err("Buffer eviction failed\n");
-			ttm_resource_free(bo, &evict_mem);
-			goto out;
-		}
-		/* try and move to final place now. */
-		goto bounce;
+	} while (!ret);
+
+	if (ret) {
+		ttm_resource_free(bo, &evict_mem);
+		if (ret != -ERESTARTSYS && ret != -EINTR)
+			pr_err("Buffer eviction failed\n");
 	}
 out:
 	return ret;
-- 
2.39.2

[PATCH 5.15 024/155] n_tty: Rename tail to old_tail in n_tty_read()

[Greg Kroah-Hartman]

From: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>

[ Upstream commit 947d66b68f3c4e7cf8f3f3500807b9d2a0de28ce ]

The local tail variable in n_tty_read() is used for one purpose, it
keeps the old tail. Thus, rename it appropriately to improve code
readability.

Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Jiri Slaby <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/22b37499-ff9a-7fc1-f6e0-58411328d122@linux.intel.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Stable-dep-of: 4903fde8047a ("tty: fix hang on tty device with no_room set")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/n_tty.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 891036bd9f897..8f57448e1ce46 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -2100,7 +2100,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 	ssize_t retval = 0;
 	long timeout;
 	bool packet;
-	size_t tail;
+	size_t old_tail;
 
 	/*
 	 * Is this a continuation of a read started earler?
@@ -2163,7 +2163,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 	}
 
 	packet = tty->ctrl.packet;
-	tail = ldata->read_tail;
+	old_tail = ldata->read_tail;
 
 	add_wait_queue(&tty->read_wait, &wait);
 	while (nr) {
@@ -2252,7 +2252,7 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 		if (time)
 			timeout = time;
 	}
-	if (tail != ldata->read_tail)
+	if (old_tail != ldata->read_tail)
 		n_tty_kick_worker(tty);
 	up_read(&tty->termios_rwsem);
 
-- 
2.39.2

[PATCH 5.15 025/155] tty: fix hang on tty device with no_room set

[Greg Kroah-Hartman]

From: Hui Li <caelli@tencent.com>

[ Upstream commit 4903fde8047a28299d1fc79c1a0dcc255e928f12 ]

It is possible to hang pty devices in this case, the reader was
blocking at epoll on master side, the writer was sleeping at
wait_woken inside n_tty_write on slave side, and the write buffer
on tty_port was full, we found that the reader and writer would
never be woken again and blocked forever.

The problem was caused by a race between reader and kworker:
n_tty_read(reader):  n_tty_receive_buf_common(kworker):
copy_from_read_buf()|
                    |room = N_TTY_BUF_SIZE - (ldata->read_head - tail)
                    |room <= 0
n_tty_kick_worker() |
                    |ldata->no_room = true

After writing to slave device, writer wakes up kworker to flush
data on tty_port to reader, and the kworker finds that reader
has no room to store data so room <= 0 is met. At this moment,
reader consumes all the data on reader buffer and calls
n_tty_kick_worker to check ldata->no_room which is false and
reader quits reading. Then kworker sets ldata->no_room=true
and quits too.

If write buffer is not full, writer will wake kworker to flush data
again after following writes, but if write buffer is full and writer
goes to sleep, kworker will never be woken again and tty device is
blocked.

This problem can be solved with a check for read buffer size inside
n_tty_receive_buf_common, if read buffer is empty and ldata->no_room
is true, a call to n_tty_kick_worker is necessary to keep flushing
data to reader.

Cc: <stable@vger.kernel.org>
Fixes: 42458f41d08f ("n_tty: Ensure reader restarts worker for next reader")
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Hui Li <caelli@tencent.com>
Message-ID: <1680749090-14106-1-git-send-email-caelli@tencent.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/tty/n_tty.c | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/drivers/tty/n_tty.c b/drivers/tty/n_tty.c
index 8f57448e1ce46..6259249b11670 100644
--- a/drivers/tty/n_tty.c
+++ b/drivers/tty/n_tty.c
@@ -202,8 +202,8 @@ static void n_tty_kick_worker(struct tty_struct *tty)
 	struct n_tty_data *ldata = tty->disc_data;
 
 	/* Did the input worker stop? Restart it */
-	if (unlikely(ldata->no_room)) {
-		ldata->no_room = 0;
+	if (unlikely(READ_ONCE(ldata->no_room))) {
+		WRITE_ONCE(ldata->no_room, 0);
 
 		WARN_RATELIMIT(tty->port->itty == NULL,
 				"scheduling with invalid itty\n");
@@ -1661,7 +1661,7 @@ n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp,
 			if (overflow && room < 0)
 				ldata->read_head--;
 			room = overflow;
-			ldata->no_room = flow && !room;
+			WRITE_ONCE(ldata->no_room, flow && !room);
 		} else
 			overflow = 0;
 
@@ -1692,6 +1692,17 @@ n_tty_receive_buf_common(struct tty_struct *tty, const unsigned char *cp,
 	} else
 		n_tty_check_throttle(tty);
 
+	if (unlikely(ldata->no_room)) {
+		/*
+		 * Barrier here is to ensure to read the latest read_tail in
+		 * chars_in_buffer() and to make sure that read_tail is not loaded
+		 * before ldata->no_room is set.
+		 */
+		smp_mb();
+		if (!chars_in_buffer(tty))
+			n_tty_kick_worker(tty);
+	}
+
 	up_read(&tty->termios_rwsem);
 
 	return rcvd;
@@ -2252,8 +2263,14 @@ static ssize_t n_tty_read(struct tty_struct *tty, struct file *file,
 		if (time)
 			timeout = time;
 	}
-	if (old_tail != ldata->read_tail)
+	if (old_tail != ldata->read_tail) {
+		/*
+		 * Make sure no_room is not read in n_tty_kick_worker()
+		 * before setting ldata->read_tail in copy_from_read_buf().
+		 */
+		smp_mb();
 		n_tty_kick_worker(tty);
+	}
 	up_read(&tty->termios_rwsem);
 
 	remove_wait_queue(&tty->read_wait, &wait);
-- 
2.39.2

[PATCH 5.15 026/155] drm/ttm: never consider pinned BOs for eviction&swap

[Greg Kroah-Hartman]

From: Christian König <christian.koenig@amd.com>

[ Upstream commit a2848d08742c8e8494675892c02c0d22acbe3cf8 ]

There is a small window where we have already incremented the pin count
but not yet moved the bo from the lru to the pinned list.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reported-by: Pelloux-Prayer, Pierre-Eric <Pierre-eric.Pelloux-prayer@amd.com>
Tested-by: Pelloux-Prayer, Pierre-Eric <Pierre-eric.Pelloux-prayer@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
Link: https://patchwork.freedesktop.org/patch/msgid/20230707120826.3701-1-christian.koenig@amd.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/ttm/ttm_bo.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/gpu/drm/ttm/ttm_bo.c b/drivers/gpu/drm/ttm/ttm_bo.c
index 6080f4b5c450c..4d0ef5ab25319 100644
--- a/drivers/gpu/drm/ttm/ttm_bo.c
+++ b/drivers/gpu/drm/ttm/ttm_bo.c
@@ -604,6 +604,12 @@ static bool ttm_bo_evict_swapout_allowable(struct ttm_buffer_object *bo,
 {
 	bool ret = false;
 
+	if (bo->pin_count) {
+		*locked = false;
+		*busy = false;
+		return false;
+	}
+
 	if (bo->base.resv == ctx->resv) {
 		dma_resv_assert_held(bo->base.resv);
 		if (ctx->allow_res_evict)
-- 
2.39.2

[PATCH 5.15 027/155] cifs: missing directory in MAINTAINERS file

[Greg Kroah-Hartman]

From: Steve French <stfrench@microsoft.com>

[ Upstream commit 5dd8ce24667a70bb9f7808f5eec0354bd37290c6 ]

The include/uapi/linux/cifs directory (not just fs/cifs and
fs/smbfs_common) should be included in cifs entry in the
MAINTAINERS file.

Reviewed-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: df9d70c18616 ("cifs: if deferred close is disabled then close files immediately")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 MAINTAINERS | 1 +
 1 file changed, 1 insertion(+)

diff --git a/MAINTAINERS b/MAINTAINERS
index 2bf1ad0fb2a6f..e6b53e76651be 100644
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@ -4666,6 +4666,7 @@ T:	git git://git.samba.org/sfrench/cifs-2.6.git
 F:	Documentation/admin-guide/cifs/
 F:	fs/cifs/
 F:	fs/smbfs_common/
+F:	include/uapi/linux/cifs
 
 COMPACTPCI HOTPLUG CORE
 M:	Scott Murray <scott@spiteful.org>
-- 
2.39.2

[PATCH 5.15 028/155] cifs: use fs_context for automounts

[Greg Kroah-Hartman]

From: Paulo Alcantara <pc@cjr.nz>

[ Upstream commit 9fd29a5bae6e8f94b410374099a6fddb253d2d5f ]

Use filesystem context support to handle dfs links.

Signed-off-by: Paulo Alcantara (SUSE) <pc@cjr.nz>
Signed-off-by: Steve French <stfrench@microsoft.com>
Stable-dep-of: df9d70c18616 ("cifs: if deferred close is disabled then close files immediately")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/cifs_dfs_ref.c | 100 +++++++++++++++++------------------------
 1 file changed, 40 insertions(+), 60 deletions(-)

diff --git a/fs/cifs/cifs_dfs_ref.c b/fs/cifs/cifs_dfs_ref.c
index b0864da9ef434..020e71fe1454e 100644
--- a/fs/cifs/cifs_dfs_ref.c
+++ b/fs/cifs/cifs_dfs_ref.c
@@ -258,61 +258,23 @@ char *cifs_compose_mount_options(const char *sb_mountdata,
 	goto compose_mount_options_out;
 }
 
-/**
- * cifs_dfs_do_mount - mounts specified path using DFS full path
- *
- * Always pass down @fullpath to smb3_do_mount() so we can use the root server
- * to perform failover in case we failed to connect to the first target in the
- * referral.
- *
- * @mntpt:		directory entry for the path we are trying to automount
- * @cifs_sb:		parent/root superblock
- * @fullpath:		full path in UNC format
- */
-static struct vfsmount *cifs_dfs_do_mount(struct dentry *mntpt,
-					  struct cifs_sb_info *cifs_sb,
-					  const char *fullpath)
-{
-	struct vfsmount *mnt;
-	char *mountdata;
-	char *devname;
-
-	devname = kstrdup(fullpath, GFP_KERNEL);
-	if (!devname)
-		return ERR_PTR(-ENOMEM);
-
-	convert_delimiter(devname, '/');
-
-	/* TODO: change to call fs_context_for_mount(), fill in context directly, call fc_mount */
-
-	/* See afs_mntpt_do_automount in fs/afs/mntpt.c for an example */
-
-	/* strip first '\' from fullpath */
-	mountdata = cifs_compose_mount_options(cifs_sb->ctx->mount_options,
-					       fullpath + 1, NULL, NULL);
-	if (IS_ERR(mountdata)) {
-		kfree(devname);
-		return (struct vfsmount *)mountdata;
-	}
-
-	mnt = vfs_submount(mntpt, &cifs_fs_type, devname, mountdata);
-	kfree(mountdata);
-	kfree(devname);
-	return mnt;
-}
-
 /*
  * Create a vfsmount that we can automount
  */
-static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
+static struct vfsmount *cifs_dfs_do_automount(struct path *path)
 {
+	int rc;
+	struct dentry *mntpt = path->dentry;
+	struct fs_context *fc;
 	struct cifs_sb_info *cifs_sb;
-	void *page;
+	void *page = NULL;
+	struct smb3_fs_context *ctx, *cur_ctx;
+	struct smb3_fs_context tmp;
 	char *full_path;
 	struct vfsmount *mnt;
 
-	cifs_dbg(FYI, "in %s\n", __func__);
-	BUG_ON(IS_ROOT(mntpt));
+	if (IS_ROOT(mntpt))
+		return ERR_PTR(-ESTALE);
 
 	/*
 	 * The MSDFS spec states that paths in DFS referral requests and
@@ -321,29 +283,47 @@ static struct vfsmount *cifs_dfs_do_automount(struct dentry *mntpt)
 	 * gives us the latter, so we must adjust the result.
 	 */
 	cifs_sb = CIFS_SB(mntpt->d_sb);
-	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS) {
-		mnt = ERR_PTR(-EREMOTE);
-		goto cdda_exit;
-	}
+	if (cifs_sb->mnt_cifs_flags & CIFS_MOUNT_NO_DFS)
+		return ERR_PTR(-EREMOTE);
+
+	cur_ctx = cifs_sb->ctx;
+
+	fc = fs_context_for_submount(path->mnt->mnt_sb->s_type, mntpt);
+	if (IS_ERR(fc))
+		return ERR_CAST(fc);
+
+	ctx = smb3_fc2context(fc);
 
 	page = alloc_dentry_path();
 	/* always use tree name prefix */
 	full_path = build_path_from_dentry_optional_prefix(mntpt, page, true);
 	if (IS_ERR(full_path)) {
 		mnt = ERR_CAST(full_path);
-		goto free_full_path;
+		goto out;
 	}
 
-	convert_delimiter(full_path, '\\');
+	convert_delimiter(full_path, '/');
 	cifs_dbg(FYI, "%s: full_path: %s\n", __func__, full_path);
 
-	mnt = cifs_dfs_do_mount(mntpt, cifs_sb, full_path);
-	cifs_dbg(FYI, "%s: cifs_dfs_do_mount:%s , mnt:%p\n", __func__, full_path + 1, mnt);
+	tmp = *cur_ctx;
+	tmp.source = full_path;
+	tmp.UNC = tmp.prepath = NULL;
+
+	rc = smb3_fs_context_dup(ctx, &tmp);
+	if (rc) {
+		mnt = ERR_PTR(rc);
+		goto out;
+	}
+
+	rc = smb3_parse_devname(full_path, ctx);
+	if (!rc)
+		mnt = fc_mount(fc);
+	else
+		mnt = ERR_PTR(rc);
 
-free_full_path:
+out:
+	put_fs_context(fc);
 	free_dentry_path(page);
-cdda_exit:
-	cifs_dbg(FYI, "leaving %s\n" , __func__);
 	return mnt;
 }
 
@@ -354,9 +334,9 @@ struct vfsmount *cifs_dfs_d_automount(struct path *path)
 {
 	struct vfsmount *newmnt;
 
-	cifs_dbg(FYI, "in %s\n", __func__);
+	cifs_dbg(FYI, "%s: %pd\n", __func__, path->dentry);
 
-	newmnt = cifs_dfs_do_automount(path->dentry);
+	newmnt = cifs_dfs_do_automount(path);
 	if (IS_ERR(newmnt)) {
 		cifs_dbg(FYI, "leaving %s [automount failed]\n" , __func__);
 		return newmnt;
-- 
2.39.2

[PATCH 5.15 029/155] ksmbd: remove internal.h include

[Greg Kroah-Hartman]

From: Namjae Jeon <linkinjeon@kernel.org>

[ Upstream commit 211db0ac9e3dc6c46f2dd53395b34d76af929faf ]

Since vfs_path_lookup is exported, It should not be internal.
Move vfs_path_lookup prototype in internal.h to linux/namei.h.

Suggested-by: Al Viro <viro@zeniv.linux.org.uk>
Reviewed-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Stable-dep-of: df9d70c18616 ("cifs: if deferred close is disabled then close files immediately")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/internal.h         | 2 --
 fs/ksmbd/vfs.c        | 2 --
 include/linux/namei.h | 2 ++
 3 files changed, 2 insertions(+), 4 deletions(-)

diff --git a/fs/internal.h b/fs/internal.h
index ceb154583a3c4..1ff8cfc94467b 100644
--- a/fs/internal.h
+++ b/fs/internal.h
@@ -58,8 +58,6 @@ extern int finish_clean_context(struct fs_context *fc);
  */
 extern int filename_lookup(int dfd, struct filename *name, unsigned flags,
 			   struct path *path, struct path *root);
-extern int vfs_path_lookup(struct dentry *, struct vfsmount *,
-			   const char *, unsigned int, struct path *);
 int do_rmdir(int dfd, struct filename *name);
 int do_unlinkat(int dfd, struct filename *name);
 int may_linkat(struct user_namespace *mnt_userns, struct path *link);
diff --git a/fs/ksmbd/vfs.c b/fs/ksmbd/vfs.c
index 52cc6a9627ed7..f76acd83c2944 100644
--- a/fs/ksmbd/vfs.c
+++ b/fs/ksmbd/vfs.c
@@ -19,8 +19,6 @@
 #include <linux/sched/xacct.h>
 #include <linux/crc32c.h>
 
-#include "../internal.h"	/* for vfs_path_lookup */
-
 #include "glob.h"
 #include "oplock.h"
 #include "connection.h"
diff --git a/include/linux/namei.h b/include/linux/namei.h
index caeb08a98536c..40c693525f796 100644
--- a/include/linux/namei.h
+++ b/include/linux/namei.h
@@ -63,6 +63,8 @@ extern struct dentry *kern_path_create(int, const char *, struct path *, unsigne
 extern struct dentry *user_path_create(int, const char __user *, struct path *, unsigned int);
 extern void done_path_create(struct path *, struct dentry *);
 extern struct dentry *kern_path_locked(const char *, struct path *);
+int vfs_path_lookup(struct dentry *, struct vfsmount *, const char *,
+		    unsigned int, struct path *);
 
 extern struct dentry *try_lookup_one_len(const char *, struct dentry *, int);
 extern struct dentry *lookup_one_len(const char *, struct dentry *, int);
-- 
2.39.2

[PATCH 5.15 030/155] cifs: if deferred close is disabled then close files immediately

[Greg Kroah-Hartman]

From: Bharath SM <bharathsm@microsoft.com>

[ Upstream commit df9d70c18616760c6504b97fec66b6379c172dbb ]

If defer close timeout value is set to 0, then there is no
need to include files in the deferred close list and utilize
the delayed worker for closing. Instead, we can close them
immediately.

Signed-off-by: Bharath SM <bharathsm@microsoft.com>
Reviewed-by: Shyam Prasad N <sprasad@microsoft.com>
Cc: stable@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cifs/file.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/fs/cifs/file.c b/fs/cifs/file.c
index 4e4f73a90574b..e65fbae9e804b 100644
--- a/fs/cifs/file.c
+++ b/fs/cifs/file.c
@@ -880,8 +880,8 @@ int cifs_close(struct inode *inode, struct file *file)
 		cfile = file->private_data;
 		file->private_data = NULL;
 		dclose = kmalloc(sizeof(struct cifs_deferred_close), GFP_KERNEL);
-		if ((cinode->oplock == CIFS_CACHE_RHW_FLG) &&
-		    cinode->lease_granted &&
+		if ((cifs_sb->ctx->closetimeo && cinode->oplock == CIFS_CACHE_RHW_FLG)
+		    && cinode->lease_granted &&
 		    !test_bit(CIFS_INO_CLOSE_ON_LOCK, &cinode->flags) &&
 		    dclose) {
 			if (test_and_clear_bit(CIFS_INO_MODIFIED_ATTR, &cinode->flags)) {
-- 
2.39.2

[PATCH 5.15 031/155] pwm: meson: Simplify duplicated per-channel tracking

[Greg Kroah-Hartman]

From: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>

[ Upstream commit 5f97f18feac9bd5a8163b108aee52d783114b36f ]

The driver tracks per-channel data via struct pwm_device::chip_data and
struct meson_pwm::channels[]. The latter holds the actual data, the former
is only a pointer to the latter. So simplify by using struct
meson_pwm::channels[] consistently.

Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Stable-dep-of: 87a2cbf02d77 ("pwm: meson: fix handling of period/duty if greater than UINT_MAX")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pwm/pwm-meson.c | 11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index 76f702c43cbc3..37bbad88a3ee5 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -147,12 +147,13 @@ static int meson_pwm_request(struct pwm_chip *chip, struct pwm_device *pwm)
 		return err;
 	}
 
-	return pwm_set_chip_data(pwm, channel);
+	return 0;
 }
 
 static void meson_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 {
-	struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
+	struct meson_pwm *meson = to_meson_pwm(chip);
+	struct meson_pwm_channel *channel = &meson->channels[pwm->hwpwm];
 
 	if (channel)
 		clk_disable_unprepare(channel->clk);
@@ -161,7 +162,7 @@ static void meson_pwm_free(struct pwm_chip *chip, struct pwm_device *pwm)
 static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
 			  const struct pwm_state *state)
 {
-	struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
+	struct meson_pwm_channel *channel = &meson->channels[pwm->hwpwm];
 	unsigned int duty, period, pre_div, cnt, duty_cnt;
 	unsigned long fin_freq;
 
@@ -230,7 +231,7 @@ static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
 
 static void meson_pwm_enable(struct meson_pwm *meson, struct pwm_device *pwm)
 {
-	struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
+	struct meson_pwm_channel *channel = &meson->channels[pwm->hwpwm];
 	struct meson_pwm_channel_data *channel_data;
 	unsigned long flags;
 	u32 value;
@@ -273,8 +274,8 @@ static void meson_pwm_disable(struct meson_pwm *meson, struct pwm_device *pwm)
 static int meson_pwm_apply(struct pwm_chip *chip, struct pwm_device *pwm,
 			   const struct pwm_state *state)
 {
-	struct meson_pwm_channel *channel = pwm_get_chip_data(pwm);
 	struct meson_pwm *meson = to_meson_pwm(chip);
+	struct meson_pwm_channel *channel = &meson->channels[pwm->hwpwm];
 	int err = 0;
 
 	if (!state)
-- 
2.39.2

[PATCH 5.15 032/155] pwm: meson: fix handling of period/duty if greater than UINT_MAX

[Greg Kroah-Hartman]

From: Heiner Kallweit <hkallweit1@gmail.com>

[ Upstream commit 87a2cbf02d7701255f9fcca7e5bd864a7bb397cf ]

state->period/duty are of type u64, and if their value is greater than
UINT_MAX, then the cast to uint will cause problems. Fix this by
changing the type of the respective local variables to u64.

Fixes: b79c3670e120 ("pwm: meson: Don't duplicate the polarity internally")
Cc: stable@vger.kernel.org
Suggested-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@googlemail.com>
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Signed-off-by: Thierry Reding <thierry.reding@gmail.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/pwm/pwm-meson.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/pwm/pwm-meson.c b/drivers/pwm/pwm-meson.c
index 37bbad88a3ee5..ec6a544d6f526 100644
--- a/drivers/pwm/pwm-meson.c
+++ b/drivers/pwm/pwm-meson.c
@@ -163,8 +163,9 @@ static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
 			  const struct pwm_state *state)
 {
 	struct meson_pwm_channel *channel = &meson->channels[pwm->hwpwm];
-	unsigned int duty, period, pre_div, cnt, duty_cnt;
+	unsigned int pre_div, cnt, duty_cnt;
 	unsigned long fin_freq;
+	u64 duty, period;
 
 	duty = state->duty_cycle;
 	period = state->period;
@@ -186,19 +187,19 @@ static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
 
 	dev_dbg(meson->chip.dev, "fin_freq: %lu Hz\n", fin_freq);
 
-	pre_div = div64_u64(fin_freq * (u64)period, NSEC_PER_SEC * 0xffffLL);
+	pre_div = div64_u64(fin_freq * period, NSEC_PER_SEC * 0xffffLL);
 	if (pre_div > MISC_CLK_DIV_MASK) {
 		dev_err(meson->chip.dev, "unable to get period pre_div\n");
 		return -EINVAL;
 	}
 
-	cnt = div64_u64(fin_freq * (u64)period, NSEC_PER_SEC * (pre_div + 1));
+	cnt = div64_u64(fin_freq * period, NSEC_PER_SEC * (pre_div + 1));
 	if (cnt > 0xffff) {
 		dev_err(meson->chip.dev, "unable to get period cnt\n");
 		return -EINVAL;
 	}
 
-	dev_dbg(meson->chip.dev, "period=%u pre_div=%u cnt=%u\n", period,
+	dev_dbg(meson->chip.dev, "period=%llu pre_div=%u cnt=%u\n", period,
 		pre_div, cnt);
 
 	if (duty == period) {
@@ -211,14 +212,13 @@ static int meson_pwm_calc(struct meson_pwm *meson, struct pwm_device *pwm,
 		channel->lo = cnt;
 	} else {
 		/* Then check is we can have the duty with the same pre_div */
-		duty_cnt = div64_u64(fin_freq * (u64)duty,
-				     NSEC_PER_SEC * (pre_div + 1));
+		duty_cnt = div64_u64(fin_freq * duty, NSEC_PER_SEC * (pre_div + 1));
 		if (duty_cnt > 0xffff) {
 			dev_err(meson->chip.dev, "unable to get duty cycle\n");
 			return -EINVAL;
 		}
 
-		dev_dbg(meson->chip.dev, "duty=%u pre_div=%u duty_cnt=%u\n",
+		dev_dbg(meson->chip.dev, "duty=%llu pre_div=%u duty_cnt=%u\n",
 			duty, pre_div, duty_cnt);
 
 		channel->pre_div = pre_div;
-- 
2.39.2

[PATCH 5.15 033/155] tracing/probes: Add symstr type for dynamic events

[Greg Kroah-Hartman]

From: Masami Hiramatsu (Google) <mhiramat@kernel.org>

[ Upstream commit b26a124cbfa80f42bfc4e63e1d5643ca98159d66 ]

Add 'symstr' type for storing the kernel symbol as a string data
instead of the symbol address. This allows us to filter the
events by wildcard symbol name.

e.g.
  # echo 'e:wqfunc workqueue.workqueue_execute_start symname=$function:symstr' >> dynamic_events
  # cat events/eprobes/wqfunc/format
  name: wqfunc
  ID: 2110
  format:
  	field:unsigned short common_type;	offset:0;	size:2;	signed:0;
  	field:unsigned char common_flags;	offset:2;	size:1;	signed:0;
  	field:unsigned char common_preempt_count;	offset:3;	size:1;	signed:0;
  	field:int common_pid;	offset:4;	size:4;	signed:1;

  	field:__data_loc char[] symname;	offset:8;	size:4;	signed:1;

  print fmt: " symname=\"%s\"", __get_str(symname)

Note that there is already 'symbol' type which just change the
print format (so it still stores the symbol address in the tracing
ring buffer.) On the other hand, 'symstr' type stores the actual
"symbol+offset/size" data as a string.

Link: https://lore.kernel.org/all/166679930847.1528100.4124308529180235965.stgit@devnote3/

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Stable-dep-of: 66bcf65d6cf0 ("tracing/probes: Fix to avoid double count of the string length on the array")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 Documentation/trace/kprobetrace.rst |  8 +++--
 kernel/trace/trace.c                |  2 +-
 kernel/trace/trace_probe.c          | 44 ++++++++++++++++++---------
 kernel/trace/trace_probe.h          | 16 +++++++---
 kernel/trace/trace_probe_tmpl.h     | 47 +++++++++++++++++++++++++++--
 5 files changed, 91 insertions(+), 26 deletions(-)

diff --git a/Documentation/trace/kprobetrace.rst b/Documentation/trace/kprobetrace.rst
index b175d88f31ebb..15e4bfa2bd83c 100644
--- a/Documentation/trace/kprobetrace.rst
+++ b/Documentation/trace/kprobetrace.rst
@@ -58,8 +58,8 @@ Synopsis of kprobe_events
   NAME=FETCHARG : Set NAME as the argument name of FETCHARG.
   FETCHARG:TYPE : Set TYPE as the type of FETCHARG. Currently, basic types
 		  (u8/u16/u32/u64/s8/s16/s32/s64), hexadecimal types
-		  (x8/x16/x32/x64), "string", "ustring" and bitfield
-		  are supported.
+		  (x8/x16/x32/x64), "string", "ustring", "symbol", "symstr"
+                  and bitfield are supported.
 
   (\*1) only for the probe on function entry (offs == 0).
   (\*2) only for return probe.
@@ -96,6 +96,10 @@ offset, and container-size (usually 32). The syntax is::
 
 Symbol type('symbol') is an alias of u32 or u64 type (depends on BITS_PER_LONG)
 which shows given pointer in "symbol+offset" style.
+On the other hand, symbol-string type ('symstr') converts the given address to
+"symbol+offset/symbolsize" style and stores it as a null-terminated string.
+With 'symstr' type, you can filter the event with wildcard pattern of the
+symbols, and you don't need to solve symbol name by yourself.
 For $comm, the default type is "string"; any other type is invalid.
 
 .. _user_mem_access:
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 1dda36c7e5eb5..ae7005af78c34 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -5609,7 +5609,7 @@ static const char readme_msg[] =
 	"\t           +|-[u]<offset>(<fetcharg>), \\imm-value, \\\"imm-string\"\n"
 	"\t     type: s8/16/32/64, u8/16/32/64, x8/16/32/64, string, symbol,\n"
 	"\t           b<bit-width>@<bit-offset>/<container-size>, ustring,\n"
-	"\t           <type>\\[<array-size>\\]\n"
+	"\t           symstr, <type>\\[<array-size>\\]\n"
 #ifdef CONFIG_HIST_TRIGGERS
 	"\t    field: <stype> <name>;\n"
 	"\t    stype: u8/u16/u32/u64, s8/s16/s32/s64, pid_t,\n"
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index cb8f9fe5669ad..90bae188d0928 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -76,9 +76,11 @@ const char PRINT_TYPE_FMT_NAME(string)[] = "\\\"%s\\\"";
 /* Fetch type information table */
 static const struct fetch_type probe_fetch_types[] = {
 	/* Special types */
-	__ASSIGN_FETCH_TYPE("string", string, string, sizeof(u32), 1,
+	__ASSIGN_FETCH_TYPE("string", string, string, sizeof(u32), 1, 1,
 			    "__data_loc char[]"),
-	__ASSIGN_FETCH_TYPE("ustring", string, string, sizeof(u32), 1,
+	__ASSIGN_FETCH_TYPE("ustring", string, string, sizeof(u32), 1, 1,
+			    "__data_loc char[]"),
+	__ASSIGN_FETCH_TYPE("symstr", string, string, sizeof(u32), 1, 1,
 			    "__data_loc char[]"),
 	/* Basic types */
 	ASSIGN_FETCH_TYPE(u8,  u8,  0),
@@ -658,16 +660,26 @@ static int traceprobe_parse_probe_arg_body(const char *argv, ssize_t *size,
 
 	ret = -EINVAL;
 	/* Store operation */
-	if (!strcmp(parg->type->name, "string") ||
-	    !strcmp(parg->type->name, "ustring")) {
-		if (code->op != FETCH_OP_DEREF && code->op != FETCH_OP_UDEREF &&
-		    code->op != FETCH_OP_IMM && code->op != FETCH_OP_COMM &&
-		    code->op != FETCH_OP_DATA && code->op != FETCH_OP_TP_ARG) {
-			trace_probe_log_err(offset + (t ? (t - arg) : 0),
-					    BAD_STRING);
-			goto fail;
+	if (parg->type->is_string) {
+		if (!strcmp(parg->type->name, "symstr")) {
+			if (code->op != FETCH_OP_REG && code->op != FETCH_OP_STACK &&
+			    code->op != FETCH_OP_RETVAL && code->op != FETCH_OP_ARG &&
+			    code->op != FETCH_OP_DEREF && code->op != FETCH_OP_TP_ARG) {
+				trace_probe_log_err(offset + (t ? (t - arg) : 0),
+						    BAD_SYMSTRING);
+				goto fail;
+			}
+		} else {
+			if (code->op != FETCH_OP_DEREF && code->op != FETCH_OP_UDEREF &&
+			    code->op != FETCH_OP_IMM && code->op != FETCH_OP_COMM &&
+			    code->op != FETCH_OP_DATA && code->op != FETCH_OP_TP_ARG) {
+				trace_probe_log_err(offset + (t ? (t - arg) : 0),
+						    BAD_STRING);
+				goto fail;
+			}
 		}
-		if ((code->op == FETCH_OP_IMM || code->op == FETCH_OP_COMM ||
+		if (!strcmp(parg->type->name, "symstr") ||
+		    (code->op == FETCH_OP_IMM || code->op == FETCH_OP_COMM ||
 		     code->op == FETCH_OP_DATA) || code->op == FETCH_OP_TP_ARG ||
 		     parg->count) {
 			/*
@@ -675,6 +687,8 @@ static int traceprobe_parse_probe_arg_body(const char *argv, ssize_t *size,
 			 * must be kept, and if parg->count != 0, this is an
 			 * array of string pointers instead of string address
 			 * itself.
+			 * For the symstr, it doesn't need to dereference, thus
+			 * it just get the value.
 			 */
 			code++;
 			if (code->op != FETCH_OP_NOP) {
@@ -686,6 +700,8 @@ static int traceprobe_parse_probe_arg_body(const char *argv, ssize_t *size,
 		if (!strcmp(parg->type->name, "ustring") ||
 		    code->op == FETCH_OP_UDEREF)
 			code->op = FETCH_OP_ST_USTRING;
+		else if (!strcmp(parg->type->name, "symstr"))
+			code->op = FETCH_OP_ST_SYMSTR;
 		else
 			code->op = FETCH_OP_ST_STRING;
 		code->size = parg->type->size;
@@ -915,8 +931,7 @@ static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
 	for (i = 0; i < tp->nr_args; i++) {
 		parg = tp->args + i;
 		if (parg->count) {
-			if ((strcmp(parg->type->name, "string") == 0) ||
-			    (strcmp(parg->type->name, "ustring") == 0))
+			if (parg->type->is_string)
 				fmt = ", __get_str(%s[%d])";
 			else
 				fmt = ", REC->%s[%d]";
@@ -924,8 +939,7 @@ static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
 				pos += snprintf(buf + pos, LEN_OR_ZERO,
 						fmt, parg->name, j);
 		} else {
-			if ((strcmp(parg->type->name, "string") == 0) ||
-			    (strcmp(parg->type->name, "ustring") == 0))
+			if (parg->type->is_string)
 				fmt = ", __get_str(%s)";
 			else
 				fmt = ", REC->%s";
diff --git a/kernel/trace/trace_probe.h b/kernel/trace/trace_probe.h
index 84d495cbd876a..0f0e5005b97a0 100644
--- a/kernel/trace/trace_probe.h
+++ b/kernel/trace/trace_probe.h
@@ -99,6 +99,7 @@ enum fetch_op {
 	FETCH_OP_ST_UMEM,	/* Mem: .offset, .size */
 	FETCH_OP_ST_STRING,	/* String: .offset, .size */
 	FETCH_OP_ST_USTRING,	/* User String: .offset, .size */
+	FETCH_OP_ST_SYMSTR,	/* Kernel Symbol String: .offset, .size */
 	// Stage 4 (modify) op
 	FETCH_OP_MOD_BF,	/* Bitfield: .basesize, .lshift, .rshift */
 	// Stage 5 (loop) op
@@ -134,7 +135,8 @@ struct fetch_insn {
 struct fetch_type {
 	const char		*name;		/* Name of type */
 	size_t			size;		/* Byte size of type */
-	int			is_signed;	/* Signed flag */
+	bool			is_signed;	/* Signed flag */
+	bool			is_string;	/* String flag */
 	print_type_func_t	print;		/* Print functions */
 	const char		*fmt;		/* Format string */
 	const char		*fmttype;	/* Name in format file */
@@ -178,16 +180,19 @@ DECLARE_BASIC_PRINT_TYPE_FUNC(symbol);
 #define _ADDR_FETCH_TYPE(t) __ADDR_FETCH_TYPE(t)
 #define ADDR_FETCH_TYPE _ADDR_FETCH_TYPE(BITS_PER_LONG)
 
-#define __ASSIGN_FETCH_TYPE(_name, ptype, ftype, _size, sign, _fmttype)	\
-	{.name = _name,				\
+#define __ASSIGN_FETCH_TYPE(_name, ptype, ftype, _size, sign, str, _fmttype)	\
+	{.name = _name,					\
 	 .size = _size,					\
-	 .is_signed = sign,				\
+	 .is_signed = (bool)sign,			\
+	 .is_string = (bool)str,			\
 	 .print = PRINT_TYPE_FUNC_NAME(ptype),		\
 	 .fmt = PRINT_TYPE_FMT_NAME(ptype),		\
 	 .fmttype = _fmttype,				\
 	}
+
+/* Non string types can use these macros */
 #define _ASSIGN_FETCH_TYPE(_name, ptype, ftype, _size, sign, _fmttype)	\
-	__ASSIGN_FETCH_TYPE(_name, ptype, ftype, _size, sign, #_fmttype)
+	__ASSIGN_FETCH_TYPE(_name, ptype, ftype, _size, sign, 0, #_fmttype)
 #define ASSIGN_FETCH_TYPE(ptype, ftype, sign)			\
 	_ASSIGN_FETCH_TYPE(#ptype, ptype, ftype, sizeof(ftype), sign, ptype)
 
@@ -432,6 +437,7 @@ extern int traceprobe_define_arg_fields(struct trace_event_call *event_call,
 	C(ARRAY_TOO_BIG,	"Array number is too big"),		\
 	C(BAD_TYPE,		"Unknown type is specified"),		\
 	C(BAD_STRING,		"String accepts only memory argument"),	\
+	C(BAD_SYMSTRING,	"Symbol String doesn't accept data/userdata"),	\
 	C(BAD_BITFIELD,		"Invalid bitfield"),			\
 	C(ARG_NAME_TOO_LONG,	"Argument name is too long"),		\
 	C(NO_ARG_NAME,		"Argument name is not specified"),	\
diff --git a/kernel/trace/trace_probe_tmpl.h b/kernel/trace/trace_probe_tmpl.h
index c293a607d5366..21799fa813ca8 100644
--- a/kernel/trace/trace_probe_tmpl.h
+++ b/kernel/trace/trace_probe_tmpl.h
@@ -67,6 +67,37 @@ probe_mem_read(void *dest, void *src, size_t size);
 static nokprobe_inline int
 probe_mem_read_user(void *dest, void *src, size_t size);
 
+static nokprobe_inline int
+fetch_store_symstrlen(unsigned long addr)
+{
+	char namebuf[KSYM_SYMBOL_LEN];
+	int ret;
+
+	ret = sprint_symbol(namebuf, addr);
+	if (ret < 0)
+		return 0;
+
+	return ret + 1;
+}
+
+/*
+ * Fetch a null-terminated symbol string + offset. Caller MUST set *(u32 *)buf
+ * with max length and relative data location.
+ */
+static nokprobe_inline int
+fetch_store_symstring(unsigned long addr, void *dest, void *base)
+{
+	int maxlen = get_loc_len(*(u32 *)dest);
+	void *__dest;
+
+	if (unlikely(!maxlen))
+		return -ENOMEM;
+
+	__dest = get_loc_data(dest, base);
+
+	return sprint_symbol(__dest, addr);
+}
+
 /* From the 2nd stage, routine is same */
 static nokprobe_inline int
 process_fetch_insn_bottom(struct fetch_insn *code, unsigned long val,
@@ -99,16 +130,22 @@ process_fetch_insn_bottom(struct fetch_insn *code, unsigned long val,
 stage3:
 	/* 3rd stage: store value to buffer */
 	if (unlikely(!dest)) {
-		if (code->op == FETCH_OP_ST_STRING) {
+		switch (code->op) {
+		case FETCH_OP_ST_STRING:
 			ret = fetch_store_strlen(val + code->offset);
 			code++;
 			goto array;
-		} else if (code->op == FETCH_OP_ST_USTRING) {
+		case FETCH_OP_ST_USTRING:
 			ret += fetch_store_strlen_user(val + code->offset);
 			code++;
 			goto array;
-		} else
+		case FETCH_OP_ST_SYMSTR:
+			ret += fetch_store_symstrlen(val + code->offset);
+			code++;
+			goto array;
+		default:
 			return -EILSEQ;
+		}
 	}
 
 	switch (code->op) {
@@ -129,6 +166,10 @@ process_fetch_insn_bottom(struct fetch_insn *code, unsigned long val,
 		loc = *(u32 *)dest;
 		ret = fetch_store_string_user(val + code->offset, dest, base);
 		break;
+	case FETCH_OP_ST_SYMSTR:
+		loc = *(u32 *)dest;
+		ret = fetch_store_symstring(val + code->offset, dest, base);
+		break;
 	default:
 		return -EILSEQ;
 	}
-- 
2.39.2

[PATCH 5.15 034/155] tracing/probes: Fix to avoid double count of the string length on the array

[Greg Kroah-Hartman]

From: Masami Hiramatsu (Google) <mhiramat@kernel.org>

[ Upstream commit 66bcf65d6cf0ca6540e2341e88ee7ef02dbdda08 ]

If an array is specified with the ustring or symstr, the length of the
strings are accumlated on both of 'ret' and 'total', which means the
length is double counted.
Just set the length to the 'ret' value for avoiding double counting.

Link: https://lore.kernel.org/all/168908492917.123124.15076463491122036025.stgit@devnote2/

Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Closes: https://lore.kernel.org/all/8819b154-2ba1-43c3-98a2-cbde20892023@moroto.mountain/
Fixes: 88903c464321 ("tracing/probe: Add ustring type for user-space string")
Cc: stable@vger.kernel.org
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_probe_tmpl.h | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/kernel/trace/trace_probe_tmpl.h b/kernel/trace/trace_probe_tmpl.h
index 21799fa813ca8..98ac09052fea4 100644
--- a/kernel/trace/trace_probe_tmpl.h
+++ b/kernel/trace/trace_probe_tmpl.h
@@ -136,11 +136,11 @@ process_fetch_insn_bottom(struct fetch_insn *code, unsigned long val,
 			code++;
 			goto array;
 		case FETCH_OP_ST_USTRING:
-			ret += fetch_store_strlen_user(val + code->offset);
+			ret = fetch_store_strlen_user(val + code->offset);
 			code++;
 			goto array;
 		case FETCH_OP_ST_SYMSTR:
-			ret += fetch_store_symstrlen(val + code->offset);
+			ret = fetch_store_symstrlen(val + code->offset);
 			code++;
 			goto array;
 		default:
-- 
2.39.2

[PATCH 5.15 035/155] tracing: Allow synthetic events to pass around stacktraces

[Greg Kroah-Hartman]

From: Steven Rostedt (Google) <rostedt@goodmis.org>

[ Upstream commit 00cf3d672a9dd409418647e9f98784c339c3ff63 ]

Allow a stacktrace from one event to be displayed by the end event of a
synthetic event. This is very useful when looking for the longest latency
of a sleep or something blocked on I/O.

 # cd /sys/kernel/tracing/
 # echo 's:block_lat pid_t pid; u64 delta; unsigned long[] stack;' > dynamic_events
 # echo 'hist:keys=next_pid:ts=common_timestamp.usecs,st=stacktrace  if prev_state == 1||prev_state == 2' > events/sched/sched_switch/trigger
 # echo 'hist:keys=prev_pid:delta=common_timestamp.usecs-$ts,s=$st:onmax($delta).trace(block_lat,prev_pid,$delta,$s)' >> events/sched/sched_switch/trigger

The above creates a "block_lat" synthetic event that take the stacktrace of
when a task schedules out in either the interruptible or uninterruptible
states, and on a new per process max $delta (the time it was scheduled
out), will print the process id and the stacktrace.

  # echo 1 > events/synthetic/block_lat/enable
  # cat trace
 #           TASK-PID     CPU#  |||||  TIMESTAMP  FUNCTION
 #              | |         |   |||||     |         |
    kworker/u16:0-767     [006] d..4.   560.645045: block_lat: pid=767 delta=66 stack=STACK:
 => __schedule
 => schedule
 => pipe_read
 => vfs_read
 => ksys_read
 => do_syscall_64
 => 0x966000aa

           <idle>-0       [003] d..4.   561.132117: block_lat: pid=0 delta=413787 stack=STACK:
 => __schedule
 => schedule
 => schedule_hrtimeout_range_clock
 => do_sys_poll
 => __x64_sys_poll
 => do_syscall_64
 => 0x966000aa

            <...>-153     [006] d..4.   562.068407: block_lat: pid=153 delta=54 stack=STACK:
 => __schedule
 => schedule
 => io_schedule
 => rq_qos_wait
 => wbt_wait
 => __rq_qos_throttle
 => blk_mq_submit_bio
 => submit_bio_noacct_nocheck
 => ext4_bio_write_page
 => mpage_submit_page
 => mpage_process_page_bufs
 => mpage_prepare_extent_to_map
 => ext4_do_writepages
 => ext4_writepages
 => do_writepages
 => __writeback_single_inode

Link: https://lkml.kernel.org/r/20230117152236.010941267@goodmis.org

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Cc: Ross Zwisler <zwisler@google.com>
Cc: Ching-lin Yu <chinglinyu@google.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Stable-dep-of: 797311bce5c2 ("tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace.h              |  4 ++
 kernel/trace/trace_events_hist.c  |  7 ++-
 kernel/trace/trace_events_synth.c | 80 ++++++++++++++++++++++++++++++-
 kernel/trace/trace_synth.h        |  1 +
 4 files changed, 87 insertions(+), 5 deletions(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 2c3d9b6ce1485..33c55c8826a7e 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -113,6 +113,10 @@ enum trace_type {
 #define MEM_FAIL(condition, fmt, ...)					\
 	DO_ONCE_LITE_IF(condition, pr_err, "ERROR: " fmt, ##__VA_ARGS__)
 
+#define HIST_STACKTRACE_DEPTH	16
+#define HIST_STACKTRACE_SIZE	(HIST_STACKTRACE_DEPTH * sizeof(unsigned long))
+#define HIST_STACKTRACE_SKIP	5
+
 /*
  * syscalls are special, and need special handling, this is why
  * they are not included in trace_entries.h
diff --git a/kernel/trace/trace_events_hist.c b/kernel/trace/trace_events_hist.c
index 1b70fc4c703f7..c32a53f089229 100644
--- a/kernel/trace/trace_events_hist.c
+++ b/kernel/trace/trace_events_hist.c
@@ -315,10 +315,6 @@ DEFINE_HIST_FIELD_FN(u8);
 #define for_each_hist_key_field(i, hist_data)	\
 	for ((i) = (hist_data)->n_vals; (i) < (hist_data)->n_fields; (i)++)
 
-#define HIST_STACKTRACE_DEPTH	16
-#define HIST_STACKTRACE_SIZE	(HIST_STACKTRACE_DEPTH * sizeof(unsigned long))
-#define HIST_STACKTRACE_SKIP	5
-
 #define HITCOUNT_IDX		0
 #define HIST_KEY_SIZE_MAX	(MAX_FILTER_STR_VAL + HIST_STACKTRACE_SIZE)
 
@@ -3431,6 +3427,9 @@ static int check_synth_field(struct synth_event *event,
 	    && field->is_dynamic)
 		return 0;
 
+	if (strstr(hist_field->type, "long[") && field->is_stack)
+		return 0;
+
 	if (strcmp(field->type, hist_field->type) != 0) {
 		if (field->size != hist_field->size ||
 		    (!field->is_string && field->is_signed != hist_field->is_signed))
diff --git a/kernel/trace/trace_events_synth.c b/kernel/trace/trace_events_synth.c
index 08c7df42ade7e..ce8fad956b38d 100644
--- a/kernel/trace/trace_events_synth.c
+++ b/kernel/trace/trace_events_synth.c
@@ -165,6 +165,14 @@ static int synth_field_is_string(char *type)
 	return false;
 }
 
+static int synth_field_is_stack(char *type)
+{
+	if (strstr(type, "long[") != NULL)
+		return true;
+
+	return false;
+}
+
 static int synth_field_string_size(char *type)
 {
 	char buf[4], *end, *start;
@@ -240,6 +248,8 @@ static int synth_field_size(char *type)
 		size = sizeof(gfp_t);
 	else if (synth_field_is_string(type))
 		size = synth_field_string_size(type);
+	else if (synth_field_is_stack(type))
+		size = 0;
 
 	return size;
 }
@@ -284,6 +294,8 @@ static const char *synth_field_fmt(char *type)
 		fmt = "%x";
 	else if (synth_field_is_string(type))
 		fmt = "%.*s";
+	else if (synth_field_is_stack(type))
+		fmt = "%s";
 
 	return fmt;
 }
@@ -363,6 +375,23 @@ static enum print_line_t print_synth_event(struct trace_iterator *iter,
 						 i == se->n_fields - 1 ? "" : " ");
 				n_u64 += STR_VAR_LEN_MAX / sizeof(u64);
 			}
+		} else if (se->fields[i]->is_stack) {
+			u32 offset, data_offset, len;
+			unsigned long *p, *end;
+
+			offset = (u32)entry->fields[n_u64];
+			data_offset = offset & 0xffff;
+			len = offset >> 16;
+
+			p = (void *)entry + data_offset;
+			end = (void *)p + len - (sizeof(long) - 1);
+
+			trace_seq_printf(s, "%s=STACK:\n", se->fields[i]->name);
+
+			for (; *p && p < end; p++)
+				trace_seq_printf(s, "=> %pS\n", (void *)*p);
+			n_u64++;
+
 		} else {
 			struct trace_print_flags __flags[] = {
 			    __def_gfpflag_names, {-1, NULL} };
@@ -439,6 +468,43 @@ static unsigned int trace_string(struct synth_trace_event *entry,
 	return len;
 }
 
+static unsigned int trace_stack(struct synth_trace_event *entry,
+				 struct synth_event *event,
+				 long *stack,
+				 unsigned int data_size,
+				 unsigned int *n_u64)
+{
+	unsigned int len;
+	u32 data_offset;
+	void *data_loc;
+
+	data_offset = struct_size(entry, fields, event->n_u64);
+	data_offset += data_size;
+
+	for (len = 0; len < HIST_STACKTRACE_DEPTH; len++) {
+		if (!stack[len])
+			break;
+	}
+
+	/* Include the zero'd element if it fits */
+	if (len < HIST_STACKTRACE_DEPTH)
+		len++;
+
+	len *= sizeof(long);
+
+	/* Find the dynamic section to copy the stack into. */
+	data_loc = (void *)entry + data_offset;
+	memcpy(data_loc, stack, len);
+
+	/* Fill in the field that holds the offset/len combo */
+	data_offset |= len << 16;
+	*(u32 *)&entry->fields[*n_u64] = data_offset;
+
+	(*n_u64)++;
+
+	return len;
+}
+
 static notrace void trace_event_raw_event_synth(void *__data,
 						u64 *var_ref_vals,
 						unsigned int *var_ref_idx)
@@ -491,6 +557,12 @@ static notrace void trace_event_raw_event_synth(void *__data,
 					   event->fields[i]->is_dynamic,
 					   data_size, &n_u64);
 			data_size += len; /* only dynamic string increments */
+		} if (event->fields[i]->is_stack) {
+		        long *stack = (long *)(long)var_ref_vals[val_idx];
+
+			len = trace_stack(entry, event, stack,
+					   data_size, &n_u64);
+			data_size += len;
 		} else {
 			struct synth_field *field = event->fields[i];
 			u64 val = var_ref_vals[val_idx];
@@ -553,6 +625,9 @@ static int __set_synth_event_print_fmt(struct synth_event *event,
 		    event->fields[i]->is_dynamic)
 			pos += snprintf(buf + pos, LEN_OR_ZERO,
 				", __get_str(%s)", event->fields[i]->name);
+		else if (event->fields[i]->is_stack)
+			pos += snprintf(buf + pos, LEN_OR_ZERO,
+				", __get_stacktrace(%s)", event->fields[i]->name);
 		else
 			pos += snprintf(buf + pos, LEN_OR_ZERO,
 					", REC->%s", event->fields[i]->name);
@@ -689,7 +764,8 @@ static struct synth_field *parse_synth_field(int argc, char **argv,
 		ret = -EINVAL;
 		goto free;
 	} else if (size == 0) {
-		if (synth_field_is_string(field->type)) {
+		if (synth_field_is_string(field->type) ||
+		    synth_field_is_stack(field->type)) {
 			char *type;
 
 			len = sizeof("__data_loc ") + strlen(field->type) + 1;
@@ -720,6 +796,8 @@ static struct synth_field *parse_synth_field(int argc, char **argv,
 
 	if (synth_field_is_string(field->type))
 		field->is_string = true;
+	else if (synth_field_is_stack(field->type))
+		field->is_stack = true;
 
 	field->is_signed = synth_field_signed(field->type);
  out:
diff --git a/kernel/trace/trace_synth.h b/kernel/trace/trace_synth.h
index b29595fe3ac5a..43f6fb6078dbf 100644
--- a/kernel/trace/trace_synth.h
+++ b/kernel/trace/trace_synth.h
@@ -18,6 +18,7 @@ struct synth_field {
 	bool is_signed;
 	bool is_string;
 	bool is_dynamic;
+	bool is_stack;
 };
 
 struct synth_event {
-- 
2.39.2

[PATCH 5.15 036/155] Revert "tracing: Add "(fault)" name injection to kernel probes"

[Greg Kroah-Hartman]

From: Masami Hiramatsu (Google) <mhiramat@kernel.org>

[ Upstream commit 4ed8f337dee32df71435689c19d22e4ee846e15a ]

This reverts commit 2e9906f84fc7c99388bb7123ade167250d50f1c0.

It was turned out that commit 2e9906f84fc7 ("tracing: Add "(fault)"
name injection to kernel probes") did not work correctly and probe
events still show just '(fault)' (instead of '"(fault)"'). Also,
current '(fault)' is more explicit that it faulted.

This also moves FAULT_STRING macro to trace.h so that synthetic
event can keep using it, and uses it in trace_probe.c too.

Link: https://lore.kernel.org/all/168908495772.123124.1250788051922100079.stgit@devnote2/
Link: https://lore.kernel.org/all/20230706230642.3793a593@rorschach.local.home/

Cc: stable@vger.kernel.org
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Tom Zanussi <zanussi@kernel.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Stable-dep-of: 797311bce5c2 ("tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace.h              |  2 ++
 kernel/trace/trace_probe.c        |  2 +-
 kernel/trace/trace_probe_kernel.h | 31 ++++++-------------------------
 3 files changed, 9 insertions(+), 26 deletions(-)

diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 33c55c8826a7e..43058077a4def 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -113,6 +113,8 @@ enum trace_type {
 #define MEM_FAIL(condition, fmt, ...)					\
 	DO_ONCE_LITE_IF(condition, pr_err, "ERROR: " fmt, ##__VA_ARGS__)
 
+#define FAULT_STRING "(fault)"
+
 #define HIST_STACKTRACE_DEPTH	16
 #define HIST_STACKTRACE_SIZE	(HIST_STACKTRACE_DEPTH * sizeof(unsigned long))
 #define HIST_STACKTRACE_SKIP	5
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 90bae188d0928..0888f0644d257 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -64,7 +64,7 @@ int PRINT_TYPE_FUNC_NAME(string)(struct trace_seq *s, void *data, void *ent)
 	int len = *(u32 *)data >> 16;
 
 	if (!len)
-		trace_seq_puts(s, "(fault)");
+		trace_seq_puts(s, FAULT_STRING);
 	else
 		trace_seq_printf(s, "\"%s\"",
 				 (const char *)get_loc_data(data, ent));
diff --git a/kernel/trace/trace_probe_kernel.h b/kernel/trace/trace_probe_kernel.h
index 77dbd9ff97826..1d43df29a1f8e 100644
--- a/kernel/trace/trace_probe_kernel.h
+++ b/kernel/trace/trace_probe_kernel.h
@@ -2,8 +2,6 @@
 #ifndef __TRACE_PROBE_KERNEL_H_
 #define __TRACE_PROBE_KERNEL_H_
 
-#define FAULT_STRING "(fault)"
-
 /*
  * This depends on trace_probe.h, but can not include it due to
  * the way trace_probe_tmpl.h is used by trace_kprobe.c and trace_eprobe.c.
@@ -15,16 +13,8 @@ static nokprobe_inline int
 kern_fetch_store_strlen_user(unsigned long addr)
 {
 	const void __user *uaddr =  (__force const void __user *)addr;
-	int ret;
 
-	ret = strnlen_user_nofault(uaddr, MAX_STRING_SIZE);
-	/*
-	 * strnlen_user_nofault returns zero on fault, insert the
-	 * FAULT_STRING when that occurs.
-	 */
-	if (ret <= 0)
-		return strlen(FAULT_STRING) + 1;
-	return ret;
+	return strnlen_user_nofault(uaddr, MAX_STRING_SIZE);
 }
 
 /* Return the length of string -- including null terminal byte */
@@ -44,18 +34,7 @@ kern_fetch_store_strlen(unsigned long addr)
 		len++;
 	} while (c && ret == 0 && len < MAX_STRING_SIZE);
 
-	/* For faults, return enough to hold the FAULT_STRING */
-	return (ret < 0) ? strlen(FAULT_STRING) + 1 : len;
-}
-
-static nokprobe_inline void set_data_loc(int ret, void *dest, void *__dest, void *base, int len)
-{
-	if (ret >= 0) {
-		*(u32 *)dest = make_data_loc(ret, __dest - base);
-	} else {
-		strscpy(__dest, FAULT_STRING, len);
-		ret = strlen(__dest) + 1;
-	}
+	return (ret < 0) ? ret : len;
 }
 
 /*
@@ -76,7 +55,8 @@ kern_fetch_store_string_user(unsigned long addr, void *dest, void *base)
 	__dest = get_loc_data(dest, base);
 
 	ret = strncpy_from_user_nofault(__dest, uaddr, maxlen);
-	set_data_loc(ret, dest, __dest, base, maxlen);
+	if (ret >= 0)
+		*(u32 *)dest = make_data_loc(ret, __dest - base);
 
 	return ret;
 }
@@ -107,7 +87,8 @@ kern_fetch_store_string(unsigned long addr, void *dest, void *base)
 	 * probing.
 	 */
 	ret = strncpy_from_kernel_nofault(__dest, (void *)addr, maxlen);
-	set_data_loc(ret, dest, __dest, base, maxlen);
+	if (ret >= 0)
+		*(u32 *)dest = make_data_loc(ret, __dest - base);
 
 	return ret;
 }
-- 
2.39.2

[PATCH 5.15 037/155] tracing/probes: Fix to record 0-length data_loc in fetch_store_string*() if fails

[Greg Kroah-Hartman]

From: Masami Hiramatsu (Google) <mhiramat@kernel.org>

[ Upstream commit 797311bce5c2ac90b8d65e357603cfd410d36ebb ]

Fix to record 0-length data to data_loc in fetch_store_string*() if it fails
to get the string data.
Currently those expect that the data_loc is updated by store_trace_args() if
it returns the error code. However, that does not work correctly if the
argument is an array of strings. In that case, store_trace_args() only clears
the first entry of the array (which may have no error) and leaves other
entries. So it should be cleared by fetch_store_string*() itself.
Also, 'dyndata' and 'maxlen' in store_trace_args() should be updated
only if it is used (ret > 0 and argument is a dynamic data.)

Link: https://lore.kernel.org/all/168908496683.123124.4761206188794205601.stgit@devnote2/

Fixes: 40b53b771806 ("tracing: probeevent: Add array type support")
Cc: stable@vger.kernel.org
Reviewed-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_probe_kernel.h | 13 +++++++++----
 kernel/trace/trace_probe_tmpl.h   | 10 +++-------
 kernel/trace/trace_uprobe.c       |  3 ++-
 3 files changed, 14 insertions(+), 12 deletions(-)

diff --git a/kernel/trace/trace_probe_kernel.h b/kernel/trace/trace_probe_kernel.h
index 1d43df29a1f8e..2da70be83831c 100644
--- a/kernel/trace/trace_probe_kernel.h
+++ b/kernel/trace/trace_probe_kernel.h
@@ -37,6 +37,13 @@ kern_fetch_store_strlen(unsigned long addr)
 	return (ret < 0) ? ret : len;
 }
 
+static nokprobe_inline void set_data_loc(int ret, void *dest, void *__dest, void *base)
+{
+	if (ret < 0)
+		ret = 0;
+	*(u32 *)dest = make_data_loc(ret, __dest - base);
+}
+
 /*
  * Fetch a null-terminated string from user. Caller MUST set *(u32 *)buf
  * with max length and relative data location.
@@ -55,8 +62,7 @@ kern_fetch_store_string_user(unsigned long addr, void *dest, void *base)
 	__dest = get_loc_data(dest, base);
 
 	ret = strncpy_from_user_nofault(__dest, uaddr, maxlen);
-	if (ret >= 0)
-		*(u32 *)dest = make_data_loc(ret, __dest - base);
+	set_data_loc(ret, dest, __dest, base);
 
 	return ret;
 }
@@ -87,8 +93,7 @@ kern_fetch_store_string(unsigned long addr, void *dest, void *base)
 	 * probing.
 	 */
 	ret = strncpy_from_kernel_nofault(__dest, (void *)addr, maxlen);
-	if (ret >= 0)
-		*(u32 *)dest = make_data_loc(ret, __dest - base);
+	set_data_loc(ret, dest, __dest, base);
 
 	return ret;
 }
diff --git a/kernel/trace/trace_probe_tmpl.h b/kernel/trace/trace_probe_tmpl.h
index 98ac09052fea4..3e2f5a43b974c 100644
--- a/kernel/trace/trace_probe_tmpl.h
+++ b/kernel/trace/trace_probe_tmpl.h
@@ -247,13 +247,9 @@ store_trace_args(void *data, struct trace_probe *tp, void *rec,
 		if (unlikely(arg->dynamic))
 			*dl = make_data_loc(maxlen, dyndata - base);
 		ret = process_fetch_insn(arg->code, rec, dl, base);
-		if (arg->dynamic) {
-			if (unlikely(ret < 0)) {
-				*dl = make_data_loc(0, dyndata - base);
-			} else {
-				dyndata += ret;
-				maxlen -= ret;
-			}
+		if (arg->dynamic && likely(ret > 0)) {
+			dyndata += ret;
+			maxlen -= ret;
 		}
 	}
 }
diff --git a/kernel/trace/trace_uprobe.c b/kernel/trace/trace_uprobe.c
index 78ec1c16ccf4b..debc651015489 100644
--- a/kernel/trace/trace_uprobe.c
+++ b/kernel/trace/trace_uprobe.c
@@ -168,7 +168,8 @@ fetch_store_string(unsigned long addr, void *dest, void *base)
 			 */
 			ret++;
 		*(u32 *)dest = make_data_loc(ret, (void *)dst - base);
-	}
+	} else
+		*(u32 *)dest = make_data_loc(0, (void *)dst - base);
 
 	return ret;
 }
-- 
2.39.2

[PATCH 5.15 038/155] scsi: qla2xxx: Remove unused declarations for qla2xxx

[Greg Kroah-Hartman]

From: Gaosheng Cui <cuigaosheng1@huawei.com>

[ Upstream commit 1b80addaae099dc33e683d971aba90eeeaf887a3 ]

qla2x00_get_fw_version_str() has been removed since commit abbd8870b9cb
("[SCSI] qla2xxx: Factor-out ISP specific functions to method-based call
tables.").

qla2x00_release_nvram_protection() has been removed since commit
459c537807bd ("[SCSI] qla2xxx: Add ISP24xx flash-manipulation routines.").

qla82xx_rdmem() and qla82xx_wrmem() have been removed since commit
3711333dfbee ("[SCSI] qla2xxx: Updates for ISP82xx.").

qla25xx_rd_req_reg(), qla24xx_rd_req_reg(), qla25xx_wrt_rsp_reg(),
qla24xx_wrt_rsp_reg(), qla25xx_wrt_req_reg() and qla24xx_wrt_req_reg() have
been removed since commit 08029990b25b ("[SCSI] qla2xxx: Refactor
request/response-queue register handling.").

qla2x00_async_login_done() has been removed since commit 726b85487067
("qla2xxx: Add framework for async fabric discovery").

qlt_24xx_process_response_error() has been removed since commit
c5419e2618b9 ("scsi: qla2xxx: Combine Active command arrays.").

Remove the declarations for them from header file.

Link: https://lore.kernel.org/r/20220913023722.547249-2-cuigaosheng1@huawei.com
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 6a87679626b5 ("scsi: qla2xxx: Fix task management cmd fail due to unavailable resource")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_gbl.h    | 12 ------------
 drivers/scsi/qla2xxx/qla_target.h |  2 --
 2 files changed, 14 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index f82e4a348330a..4ed0777cd2a6f 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -70,8 +70,6 @@ extern int qla2x00_async_prlo(struct scsi_qla_host *, fc_port_t *);
 extern int qla2x00_async_adisc(struct scsi_qla_host *, fc_port_t *,
     uint16_t *);
 extern int qla2x00_async_tm_cmd(fc_port_t *, uint32_t, uint32_t, uint32_t);
-extern void qla2x00_async_login_done(struct scsi_qla_host *, fc_port_t *,
-    uint16_t *);
 struct qla_work_evt *qla2x00_alloc_work(struct scsi_qla_host *,
     enum qla_work_type);
 extern int qla24xx_async_gnl(struct scsi_qla_host *, fc_port_t *);
@@ -278,7 +276,6 @@ extern int qla24xx_vport_create_req_sanity_check(struct fc_vport *);
 extern scsi_qla_host_t *qla24xx_create_vhost(struct fc_vport *);
 
 extern void qla2x00_sp_free_dma(srb_t *sp);
-extern char *qla2x00_get_fw_version_str(struct scsi_qla_host *, char *);
 
 extern void qla2x00_mark_device_lost(scsi_qla_host_t *, fc_port_t *, int);
 extern void qla2x00_mark_all_devices_lost(scsi_qla_host_t *);
@@ -611,7 +608,6 @@ void __qla_consume_iocb(struct scsi_qla_host *vha, void **pkt, struct rsp_que **
 /*
  * Global Function Prototypes in qla_sup.c source file.
  */
-extern void qla2x00_release_nvram_protection(scsi_qla_host_t *);
 extern int qla24xx_read_flash_data(scsi_qla_host_t *, uint32_t *,
     uint32_t, uint32_t);
 extern uint8_t *qla2x00_read_nvram_data(scsi_qla_host_t *, void *, uint32_t,
@@ -781,12 +777,6 @@ extern void qla2x00_init_response_q_entries(struct rsp_que *);
 extern int qla25xx_delete_req_que(struct scsi_qla_host *, struct req_que *);
 extern int qla25xx_delete_rsp_que(struct scsi_qla_host *, struct rsp_que *);
 extern int qla25xx_delete_queues(struct scsi_qla_host *);
-extern uint16_t qla24xx_rd_req_reg(struct qla_hw_data *, uint16_t);
-extern uint16_t qla25xx_rd_req_reg(struct qla_hw_data *, uint16_t);
-extern void qla24xx_wrt_req_reg(struct qla_hw_data *, uint16_t, uint16_t);
-extern void qla25xx_wrt_req_reg(struct qla_hw_data *, uint16_t, uint16_t);
-extern void qla25xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t);
-extern void qla24xx_wrt_rsp_reg(struct qla_hw_data *, uint16_t, uint16_t);
 
 /* qlafx00 related functions */
 extern int qlafx00_pci_config(struct scsi_qla_host *);
@@ -871,8 +861,6 @@ extern void qla82xx_init_flags(struct qla_hw_data *);
 extern void qla82xx_set_drv_active(scsi_qla_host_t *);
 extern int qla82xx_wr_32(struct qla_hw_data *, ulong, u32);
 extern int qla82xx_rd_32(struct qla_hw_data *, ulong);
-extern int qla82xx_rdmem(struct qla_hw_data *, u64, void *, int);
-extern int qla82xx_wrmem(struct qla_hw_data *, u64, void *, int);
 
 /* ISP 8021 IDC */
 extern void qla82xx_clear_drv_active(struct qla_hw_data *);
diff --git a/drivers/scsi/qla2xxx/qla_target.h b/drivers/scsi/qla2xxx/qla_target.h
index 156b950ca7e72..aa83434448377 100644
--- a/drivers/scsi/qla2xxx/qla_target.h
+++ b/drivers/scsi/qla2xxx/qla_target.h
@@ -1080,8 +1080,6 @@ extern void qlt_81xx_config_nvram_stage2(struct scsi_qla_host *,
 	struct init_cb_81xx *);
 extern void qlt_81xx_config_nvram_stage1(struct scsi_qla_host *,
 	struct nvram_81xx *);
-extern int qlt_24xx_process_response_error(struct scsi_qla_host *,
-	struct sts_entry_24xx *);
 extern void qlt_modify_vp_config(struct scsi_qla_host *,
 	struct vp_config_entry_24xx *);
 extern void qlt_probe_one_stage1(struct scsi_qla_host *, struct qla_hw_data *);
-- 
2.39.2

[PATCH 5.15 041/155] scsi: qla2xxx: Fix task management cmd fail due to unavailable resource

[Greg Kroah-Hartman]

From: Quinn Tran <qutran@marvell.com>

[ Upstream commit 6a87679626b51b53fbb6be417ad8eb083030b617 ]

Task management command failed with status 2Ch which is
a result of too many task management commands sent
to the same target. Hence limit task management commands
to 8 per target.

Reported-by: kernel test robot <lkp@intel.com>
Link: https://lore.kernel.org/oe-kbuild-all/202304271952.NKNmoFzv-lkp@intel.com/
Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230428075339.32551-4-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_def.h  |  3 ++
 drivers/scsi/qla2xxx/qla_init.c | 63 ++++++++++++++++++++++++++++++---
 2 files changed, 61 insertions(+), 5 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index ca63aa8f33b5d..bbeb116c16cc3 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -2523,6 +2523,7 @@ enum rscn_addr_format {
 typedef struct fc_port {
 	struct list_head list;
 	struct scsi_qla_host *vha;
+	struct list_head tmf_pending;
 
 	unsigned int conf_compl_supported:1;
 	unsigned int deleted:2;
@@ -2543,6 +2544,8 @@ typedef struct fc_port {
 	unsigned int do_prli_nvme:1;
 
 	uint8_t nvme_flag;
+	uint8_t active_tmf;
+#define MAX_ACTIVE_TMF 8
 
 	uint8_t node_name[WWN_SIZE];
 	uint8_t port_name[WWN_SIZE];
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 9d9b16f7f34a6..2c42ecb2a64a5 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -2151,6 +2151,54 @@ __qla2x00_async_tm_cmd(struct tmf_arg *arg)
 	return rval;
 }
 
+static void qla_put_tmf(fc_port_t *fcport)
+{
+	struct scsi_qla_host *vha = fcport->vha;
+	struct qla_hw_data *ha = vha->hw;
+	unsigned long flags;
+
+	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
+	fcport->active_tmf--;
+	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
+}
+
+static
+int qla_get_tmf(fc_port_t *fcport)
+{
+	struct scsi_qla_host *vha = fcport->vha;
+	struct qla_hw_data *ha = vha->hw;
+	unsigned long flags;
+	int rc = 0;
+	LIST_HEAD(tmf_elem);
+
+	spin_lock_irqsave(&ha->tgt.sess_lock, flags);
+	list_add_tail(&tmf_elem, &fcport->tmf_pending);
+
+	while (fcport->active_tmf >= MAX_ACTIVE_TMF) {
+		spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
+
+		msleep(1);
+
+		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
+		if (fcport->deleted) {
+			rc = EIO;
+			break;
+		}
+		if (fcport->active_tmf < MAX_ACTIVE_TMF &&
+		    list_is_first(&tmf_elem, &fcport->tmf_pending))
+			break;
+	}
+
+	list_del(&tmf_elem);
+
+	if (!rc)
+		fcport->active_tmf++;
+
+	spin_unlock_irqrestore(&ha->tgt.sess_lock, flags);
+
+	return rc;
+}
+
 int
 qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
 		     uint32_t tag)
@@ -2158,18 +2206,19 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
 	struct scsi_qla_host *vha = fcport->vha;
 	struct qla_qpair *qpair;
 	struct tmf_arg a;
-	struct completion comp;
 	int i, rval;
 
-	init_completion(&comp);
 	a.vha = fcport->vha;
 	a.fcport = fcport;
 	a.lun = lun;
-
-	if (flags & (TCF_LUN_RESET|TCF_ABORT_TASK_SET|TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA))
+	if (flags & (TCF_LUN_RESET|TCF_ABORT_TASK_SET|TCF_CLEAR_TASK_SET|TCF_CLEAR_ACA)) {
 		a.modifier = MK_SYNC_ID_LUN;
-	else
+
+		if (qla_get_tmf(fcport))
+			return QLA_FUNCTION_FAILED;
+	} else {
 		a.modifier = MK_SYNC_ID;
+	}
 
 	if (vha->hw->mqenable) {
 		for (i = 0; i < vha->hw->num_qpairs; i++) {
@@ -2188,6 +2237,9 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
 	a.flags = flags;
 	rval = __qla2x00_async_tm_cmd(&a);
 
+	if (a.modifier == MK_SYNC_ID_LUN)
+		qla_put_tmf(fcport);
+
 	return rval;
 }
 
@@ -5423,6 +5475,7 @@ qla2x00_alloc_fcport(scsi_qla_host_t *vha, gfp_t flags)
 	INIT_WORK(&fcport->reg_work, qla_register_fcport_fn);
 	INIT_LIST_HEAD(&fcport->gnl_entry);
 	INIT_LIST_HEAD(&fcport->list);
+	INIT_LIST_HEAD(&fcport->tmf_pending);
 
 	INIT_LIST_HEAD(&fcport->sess_cmd_list);
 	spin_lock_init(&fcport->sess_cmd_lock);
-- 
2.39.2

[PATCH 5.15 042/155] scsi: qla2xxx: Add debug prints in the device remove path

[Greg Kroah-Hartman]

From: Arun Easi <aeasi@marvell.com>

[ Upstream commit f12d2d130efc49464ef0666789bfeb9073162743 ]

Add a debug print in the devloss callback.

Link: https://lore.kernel.org/r/20220616053508.27186-9-njavali@marvell.com
Signed-off-by: Arun Easi <aeasi@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Stable-dep-of: 9ae615c5bfd3 ("scsi: qla2xxx: Fix hang in task management")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_attr.c | 3 +++
 drivers/scsi/qla2xxx/qla_def.h  | 6 ++++++
 2 files changed, 9 insertions(+)

diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index de57d45ffc5cb..4a5df867057bc 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -2705,6 +2705,9 @@ qla2x00_dev_loss_tmo_callbk(struct fc_rport *rport)
 	if (!fcport)
 		return;
 
+	ql_dbg(ql_dbg_async, fcport->vha, 0x5101,
+	       DBG_FCPORT_PRFMT(fcport, "dev_loss_tmo expiry, rport_state=%d",
+				rport->port_state));
 
 	/*
 	 * Now that the rport has been deleted, set the fcport state to
diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index bbeb116c16cc3..2a2bca2fb57ee 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -5475,4 +5475,10 @@ struct ql_vnd_tgt_stats_resp {
 #define IS_SESSION_DELETED(_fcport) (_fcport->disc_state == DSC_DELETE_PEND || \
 				      _fcport->disc_state == DSC_DELETED)
 
+#define DBG_FCPORT_PRFMT(_fp, _fmt, _args...) \
+	"%s: %8phC: " _fmt " (state=%d disc_state=%d scan_state=%d loopid=0x%x deleted=%d flags=0x%x)\n", \
+	__func__, _fp->port_name, ##_args, atomic_read(&_fp->state), \
+	_fp->disc_state, _fp->scan_state, _fp->loop_id, _fp->deleted, \
+	_fp->flags
+
 #endif
-- 
2.39.2

[PATCH 5.15 043/155] scsi: qla2xxx: Fix hang in task management

[Greg Kroah-Hartman]

From: Quinn Tran <qutran@marvell.com>

[ Upstream commit 9ae615c5bfd37bd091772969b1153de5335ea986 ]

Task management command hangs where a side
band chip reset failed to nudge the TMF
from it's current send path.

Add additional error check to block TMF
from entering during chip reset and along
the TMF path to cause it to bail out, skip
over abort of marker.

Cc: stable@vger.kernel.org
Signed-off-by: Quinn Tran <qutran@marvell.com>
Signed-off-by: Nilesh Javali <njavali@marvell.com>
Link: https://lore.kernel.org/r/20230428075339.32551-5-njavali@marvell.com
Reviewed-by: Himanshu Madhani <himanshu.madhani@oracle.com>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/scsi/qla2xxx/qla_def.h  |  4 +++
 drivers/scsi/qla2xxx/qla_init.c | 60 +++++++++++++++++++++++++++++++--
 2 files changed, 61 insertions(+), 3 deletions(-)

diff --git a/drivers/scsi/qla2xxx/qla_def.h b/drivers/scsi/qla2xxx/qla_def.h
index 2a2bca2fb57ee..83228ce822af3 100644
--- a/drivers/scsi/qla2xxx/qla_def.h
+++ b/drivers/scsi/qla2xxx/qla_def.h
@@ -5481,4 +5481,8 @@ struct ql_vnd_tgt_stats_resp {
 	_fp->disc_state, _fp->scan_state, _fp->loop_id, _fp->deleted, \
 	_fp->flags
 
+#define TMF_NOT_READY(_fcport) \
+	(!_fcport || IS_SESSION_DELETED(_fcport) || atomic_read(&_fcport->state) != FCS_ONLINE || \
+	!_fcport->vha->hw->flags.fw_started)
+
 #endif
diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 2c42ecb2a64a5..a97872b6350ca 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1998,6 +1998,11 @@ qla2x00_tmf_iocb_timeout(void *data)
 	int rc, h;
 	unsigned long flags;
 
+	if (sp->type == SRB_MARKER) {
+		complete(&tmf->u.tmf.comp);
+		return;
+	}
+
 	rc = qla24xx_async_abort_cmd(sp, false);
 	if (rc) {
 		spin_lock_irqsave(sp->qpair->qp_lock_ptr, flags);
@@ -2025,6 +2030,7 @@ static void qla_marker_sp_done(srb_t *sp, int res)
 		    sp->handle, sp->fcport->d_id.b24, sp->u.iocb_cmd.u.tmf.flags,
 		    sp->u.iocb_cmd.u.tmf.lun, sp->qpair->id);
 
+	sp->u.iocb_cmd.u.tmf.data = res;
 	complete(&tmf->u.tmf.comp);
 }
 
@@ -2041,6 +2047,11 @@ static void qla_marker_sp_done(srb_t *sp, int res)
 	} while (cnt); \
 }
 
+/**
+ * qla26xx_marker: send marker IOCB and wait for the completion of it.
+ * @arg: pointer to argument list.
+ *    It is assume caller will provide an fcport pointer and modifier
+ */
 static int
 qla26xx_marker(struct tmf_arg *arg)
 {
@@ -2050,6 +2061,14 @@ qla26xx_marker(struct tmf_arg *arg)
 	int rval = QLA_FUNCTION_FAILED;
 	fc_port_t *fcport = arg->fcport;
 
+	if (TMF_NOT_READY(arg->fcport)) {
+		ql_dbg(ql_dbg_taskm, vha, 0x8039,
+		    "FC port not ready for marker loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d.\n",
+		    fcport->loop_id, fcport->d_id.b24,
+		    arg->modifier, arg->lun, arg->qpair->id);
+		return QLA_SUSPENDED;
+	}
+
 	/* ref: INIT */
 	sp = qla2xxx_get_qpair_sp(vha, arg->qpair, fcport, GFP_KERNEL);
 	if (!sp)
@@ -2076,11 +2095,19 @@ qla26xx_marker(struct tmf_arg *arg)
 
 	if (rval != QLA_SUCCESS) {
 		ql_log(ql_log_warn, vha, 0x8031,
-		    "Marker IOCB failed (%x).\n", rval);
+		    "Marker IOCB send failure (%x).\n", rval);
 		goto done_free_sp;
 	}
 
 	wait_for_completion(&tm_iocb->u.tmf.comp);
+	rval = tm_iocb->u.tmf.data;
+
+	if (rval != QLA_SUCCESS) {
+		ql_log(ql_log_warn, vha, 0x8019,
+		    "Marker failed hdl=%x loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d rval %d.\n",
+		    sp->handle, fcport->loop_id, fcport->d_id.b24,
+		    arg->modifier, arg->lun, sp->qpair->id, rval);
+	}
 
 done_free_sp:
 	/* ref: INIT */
@@ -2093,6 +2120,8 @@ static void qla2x00_tmf_sp_done(srb_t *sp, int res)
 {
 	struct srb_iocb *tmf = &sp->u.iocb_cmd;
 
+	if (res)
+		tmf->u.tmf.data = res;
 	complete(&tmf->u.tmf.comp);
 }
 
@@ -2106,6 +2135,14 @@ __qla2x00_async_tm_cmd(struct tmf_arg *arg)
 
 	fc_port_t *fcport = arg->fcport;
 
+	if (TMF_NOT_READY(arg->fcport)) {
+		ql_dbg(ql_dbg_taskm, vha, 0x8032,
+		    "FC port not ready for TM command loop-id=%x portid=%06x modifier=%x lun=%lld qp=%d.\n",
+		    fcport->loop_id, fcport->d_id.b24,
+		    arg->modifier, arg->lun, arg->qpair->id);
+		return QLA_SUSPENDED;
+	}
+
 	/* ref: INIT */
 	sp = qla2xxx_get_qpair_sp(vha, arg->qpair, fcport, GFP_KERNEL);
 	if (!sp)
@@ -2180,7 +2217,9 @@ int qla_get_tmf(fc_port_t *fcport)
 		msleep(1);
 
 		spin_lock_irqsave(&ha->tgt.sess_lock, flags);
-		if (fcport->deleted) {
+		if (TMF_NOT_READY(fcport)) {
+			ql_log(ql_log_warn, vha, 0x802c,
+			    "Unable to acquire TM resource due to disruption.\n");
 			rc = EIO;
 			break;
 		}
@@ -2206,7 +2245,10 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
 	struct scsi_qla_host *vha = fcport->vha;
 	struct qla_qpair *qpair;
 	struct tmf_arg a;
-	int i, rval;
+	int i, rval = QLA_SUCCESS;
+
+	if (TMF_NOT_READY(fcport))
+		return QLA_SUSPENDED;
 
 	a.vha = fcport->vha;
 	a.fcport = fcport;
@@ -2225,6 +2267,14 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
 			qpair = vha->hw->queue_pair_map[i];
 			if (!qpair)
 				continue;
+
+			if (TMF_NOT_READY(fcport)) {
+				ql_log(ql_log_warn, vha, 0x8026,
+				    "Unable to send TM due to disruption.\n");
+				rval = QLA_SUSPENDED;
+				break;
+			}
+
 			a.qpair = qpair;
 			a.flags = flags|TCF_NOTMCMD_TO_TARGET;
 			rval = __qla2x00_async_tm_cmd(&a);
@@ -2233,10 +2283,14 @@ qla2x00_async_tm_cmd(fc_port_t *fcport, uint32_t flags, uint64_t lun,
 		}
 	}
 
+	if (rval)
+		goto bailout;
+
 	a.qpair = vha->hw->base_qpair;
 	a.flags = flags;
 	rval = __qla2x00_async_tm_cmd(&a);
 
+bailout:
 	if (a.modifier == MK_SYNC_ID_LUN)
 		qla_put_tmf(fcport);
 
-- 
2.39.2

[PATCH 5.15 044/155] drm/amdgpu: fix vkms crtc settings

[Greg Kroah-Hartman]

From: Flora Cui <flora.cui@amd.com>

[ Upstream commit deefd07eedb7baa25956c8365373e6a58c81565a ]

otherwise adev->mode_info.crtcs[] is NULL

Signed-off-by: Flora Cui <flora.cui@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Stable-dep-of: b42ae87a7b38 ("drm/amdgpu/vkms: relax timer deactivation by hrtimer_try_to_cancel")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 42 ++++++++++++++++--------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.h |  5 ++-
 2 files changed, 30 insertions(+), 17 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
index 7d58bf410be05..24251cdf95073 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
@@ -16,6 +16,8 @@
 #include "ivsrcid/ivsrcid_vislands30.h"
 #include "amdgpu_vkms.h"
 #include "amdgpu_display.h"
+#include "atom.h"
+#include "amdgpu_irq.h"
 
 /**
  * DOC: amdgpu_vkms
@@ -41,14 +43,13 @@ static const u32 amdgpu_vkms_formats[] = {
 
 static enum hrtimer_restart amdgpu_vkms_vblank_simulate(struct hrtimer *timer)
 {
-	struct amdgpu_vkms_output *output = container_of(timer,
-							 struct amdgpu_vkms_output,
-							 vblank_hrtimer);
-	struct drm_crtc *crtc = &output->crtc;
+	struct amdgpu_crtc *amdgpu_crtc = container_of(timer, struct amdgpu_crtc, vblank_timer);
+	struct drm_crtc *crtc = &amdgpu_crtc->base;
+	struct amdgpu_vkms_output *output = drm_crtc_to_amdgpu_vkms_output(crtc);
 	u64 ret_overrun;
 	bool ret;
 
-	ret_overrun = hrtimer_forward_now(&output->vblank_hrtimer,
+	ret_overrun = hrtimer_forward_now(&amdgpu_crtc->vblank_timer,
 					  output->period_ns);
 	WARN_ON(ret_overrun != 1);
 
@@ -65,22 +66,21 @@ static int amdgpu_vkms_enable_vblank(struct drm_crtc *crtc)
 	unsigned int pipe = drm_crtc_index(crtc);
 	struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
 	struct amdgpu_vkms_output *out = drm_crtc_to_amdgpu_vkms_output(crtc);
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 
 	drm_calc_timestamping_constants(crtc, &crtc->mode);
 
-	hrtimer_init(&out->vblank_hrtimer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
-	out->vblank_hrtimer.function = &amdgpu_vkms_vblank_simulate;
 	out->period_ns = ktime_set(0, vblank->framedur_ns);
-	hrtimer_start(&out->vblank_hrtimer, out->period_ns, HRTIMER_MODE_REL);
+	hrtimer_start(&amdgpu_crtc->vblank_timer, out->period_ns, HRTIMER_MODE_REL);
 
 	return 0;
 }
 
 static void amdgpu_vkms_disable_vblank(struct drm_crtc *crtc)
 {
-	struct amdgpu_vkms_output *out = drm_crtc_to_amdgpu_vkms_output(crtc);
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 
-	hrtimer_cancel(&out->vblank_hrtimer);
+	hrtimer_cancel(&amdgpu_crtc->vblank_timer);
 }
 
 static bool amdgpu_vkms_get_vblank_timestamp(struct drm_crtc *crtc,
@@ -92,13 +92,14 @@ static bool amdgpu_vkms_get_vblank_timestamp(struct drm_crtc *crtc,
 	unsigned int pipe = crtc->index;
 	struct amdgpu_vkms_output *output = drm_crtc_to_amdgpu_vkms_output(crtc);
 	struct drm_vblank_crtc *vblank = &dev->vblank[pipe];
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 
 	if (!READ_ONCE(vblank->enabled)) {
 		*vblank_time = ktime_get();
 		return true;
 	}
 
-	*vblank_time = READ_ONCE(output->vblank_hrtimer.node.expires);
+	*vblank_time = READ_ONCE(amdgpu_crtc->vblank_timer.node.expires);
 
 	if (WARN_ON(*vblank_time == vblank->time))
 		return true;
@@ -166,6 +167,8 @@ static const struct drm_crtc_helper_funcs amdgpu_vkms_crtc_helper_funcs = {
 static int amdgpu_vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 			  struct drm_plane *primary, struct drm_plane *cursor)
 {
+	struct amdgpu_device *adev = drm_to_adev(dev);
+	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 	int ret;
 
 	ret = drm_crtc_init_with_planes(dev, crtc, primary, cursor,
@@ -177,6 +180,17 @@ static int amdgpu_vkms_crtc_init(struct drm_device *dev, struct drm_crtc *crtc,
 
 	drm_crtc_helper_add(crtc, &amdgpu_vkms_crtc_helper_funcs);
 
+	amdgpu_crtc->crtc_id = drm_crtc_index(crtc);
+	adev->mode_info.crtcs[drm_crtc_index(crtc)] = amdgpu_crtc;
+
+	amdgpu_crtc->pll_id = ATOM_PPLL_INVALID;
+	amdgpu_crtc->encoder = NULL;
+	amdgpu_crtc->connector = NULL;
+	amdgpu_crtc->vsync_timer_enabled = AMDGPU_IRQ_STATE_DISABLE;
+
+	hrtimer_init(&amdgpu_crtc->vblank_timer, CLOCK_MONOTONIC, HRTIMER_MODE_REL);
+	amdgpu_crtc->vblank_timer.function = &amdgpu_vkms_vblank_simulate;
+
 	return ret;
 }
 
@@ -402,7 +416,7 @@ int amdgpu_vkms_output_init(struct drm_device *dev,
 {
 	struct drm_connector *connector = &output->connector;
 	struct drm_encoder *encoder = &output->encoder;
-	struct drm_crtc *crtc = &output->crtc;
+	struct drm_crtc *crtc = &output->crtc.base;
 	struct drm_plane *primary, *cursor = NULL;
 	int ret;
 
@@ -505,8 +519,8 @@ static int amdgpu_vkms_sw_fini(void *handle)
 	int i = 0;
 
 	for (i = 0; i < adev->mode_info.num_crtc; i++)
-		if (adev->amdgpu_vkms_output[i].vblank_hrtimer.function)
-			hrtimer_cancel(&adev->amdgpu_vkms_output[i].vblank_hrtimer);
+		if (adev->mode_info.crtcs[i])
+			hrtimer_cancel(&adev->mode_info.crtcs[i]->vblank_timer);
 
 	kfree(adev->mode_info.bios_hardcoded_edid);
 	kfree(adev->amdgpu_vkms_output);
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.h b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.h
index 97f1b79c0724e..4f8722ff37c25 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.h
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.h
@@ -10,15 +10,14 @@
 #define YRES_MAX  16384
 
 #define drm_crtc_to_amdgpu_vkms_output(target) \
-	container_of(target, struct amdgpu_vkms_output, crtc)
+	container_of(target, struct amdgpu_vkms_output, crtc.base)
 
 extern const struct amdgpu_ip_block_version amdgpu_vkms_ip_block;
 
 struct amdgpu_vkms_output {
-	struct drm_crtc crtc;
+	struct amdgpu_crtc crtc;
 	struct drm_encoder encoder;
 	struct drm_connector connector;
-	struct hrtimer vblank_hrtimer;
 	ktime_t period_ns;
 	struct drm_pending_vblank_event *event;
 };
-- 
2.39.2

[PATCH 5.15 045/155] drm/amdgpu/vkms: relax timer deactivation by hrtimer_try_to_cancel

[Greg Kroah-Hartman]

From: Guchun Chen <guchun.chen@amd.com>

[ Upstream commit b42ae87a7b3878afaf4c3852ca66c025a5b996e0 ]

In below thousands of screen rotation loop tests with virtual display
enabled, a CPU hard lockup issue may happen, leading system to unresponsive
and crash.

do {
	xrandr --output Virtual --rotate inverted
	xrandr --output Virtual --rotate right
	xrandr --output Virtual --rotate left
	xrandr --output Virtual --rotate normal
} while (1);

NMI watchdog: Watchdog detected hard LOCKUP on cpu 1

? hrtimer_run_softirq+0x140/0x140
? store_vblank+0xe0/0xe0 [drm]
hrtimer_cancel+0x15/0x30
amdgpu_vkms_disable_vblank+0x15/0x30 [amdgpu]
drm_vblank_disable_and_save+0x185/0x1f0 [drm]
drm_crtc_vblank_off+0x159/0x4c0 [drm]
? record_print_text.cold+0x11/0x11
? wait_for_completion_timeout+0x232/0x280
? drm_crtc_wait_one_vblank+0x40/0x40 [drm]
? bit_wait_io_timeout+0xe0/0xe0
? wait_for_completion_interruptible+0x1d7/0x320
? mutex_unlock+0x81/0xd0
amdgpu_vkms_crtc_atomic_disable

It's caused by a stuck in lock dependency in such scenario on different
CPUs.

CPU1                                             CPU2
drm_crtc_vblank_off                              hrtimer_interrupt
    grab event_lock (irq disabled)                   __hrtimer_run_queues
        grab vbl_lock/vblank_time_block                  amdgpu_vkms_vblank_simulate
            amdgpu_vkms_disable_vblank                       drm_handle_vblank
                hrtimer_cancel                                         grab dev->event_lock

So CPU1 stucks in hrtimer_cancel as timer callback is running endless on
current clock base, as that timer queue on CPU2 has no chance to finish it
because of failing to hold the lock. So NMI watchdog will throw the errors
after its threshold, and all later CPUs are impacted/blocked.

So use hrtimer_try_to_cancel to fix this, as disable_vblank callback
does not need to wait the handler to finish. And also it's not necessary
to check the return value of hrtimer_try_to_cancel, because even if it's
-1 which means current timer callback is running, it will be reprogrammed
in hrtimer_start with calling enable_vblank to make it works.

v2: only re-arm timer when vblank is enabled (Christian) and add a Fixes
tag as well

v3: drop warn printing (Christian)

v4: drop superfluous check of blank->enabled in timer function, as it's
guaranteed in drm_handle_vblank (Christian)

Fixes: 84ec374bd580 ("drm/amdgpu: create amdgpu_vkms (v4)")
Cc: stable@vger.kernel.org
Suggested-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Guchun Chen <guchun.chen@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
index 24251cdf95073..4e8274de8fc0c 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_vkms.c
@@ -54,8 +54,9 @@ static enum hrtimer_restart amdgpu_vkms_vblank_simulate(struct hrtimer *timer)
 	WARN_ON(ret_overrun != 1);
 
 	ret = drm_crtc_handle_vblank(crtc);
+	/* Don't queue timer again when vblank is disabled. */
 	if (!ret)
-		DRM_ERROR("amdgpu_vkms failure on handling vblank");
+		return HRTIMER_NORESTART;
 
 	return HRTIMER_RESTART;
 }
@@ -80,7 +81,7 @@ static void amdgpu_vkms_disable_vblank(struct drm_crtc *crtc)
 {
 	struct amdgpu_crtc *amdgpu_crtc = to_amdgpu_crtc(crtc);
 
-	hrtimer_cancel(&amdgpu_crtc->vblank_timer);
+	hrtimer_try_to_cancel(&amdgpu_crtc->vblank_timer);
 }
 
 static bool amdgpu_vkms_get_vblank_timestamp(struct drm_crtc *crtc,
-- 
2.39.2

[PATCH 5.15 046/155] jbd2: remove t_checkpoint_io_list

[Greg Kroah-Hartman]

From: Zhang Yi <yi.zhang@huawei.com>

[ Upstream commit be22255360f80d3af789daad00025171a65424a5 ]

Since t_checkpoint_io_list was stop using in jbd2_log_do_checkpoint()
now, it's time to remove the whole t_checkpoint_io_list logic.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-3-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Stable-dep-of: 46f881b5b175 ("jbd2: fix a race when checking checkpoint buffer busy")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/jbd2/checkpoint.c | 42 ++----------------------------------------
 fs/jbd2/commit.c     |  3 +--
 include/linux/jbd2.h |  6 ------
 3 files changed, 3 insertions(+), 48 deletions(-)

diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index d2aba55833f92..c1f543e86170a 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -27,7 +27,7 @@
  *
  * Called with j_list_lock held.
  */
-static inline void __buffer_unlink_first(struct journal_head *jh)
+static inline void __buffer_unlink(struct journal_head *jh)
 {
 	transaction_t *transaction = jh->b_cp_transaction;
 
@@ -40,23 +40,6 @@ static inline void __buffer_unlink_first(struct journal_head *jh)
 	}
 }
 
-/*
- * Unlink a buffer from a transaction checkpoint(io) list.
- *
- * Called with j_list_lock held.
- */
-static inline void __buffer_unlink(struct journal_head *jh)
-{
-	transaction_t *transaction = jh->b_cp_transaction;
-
-	__buffer_unlink_first(jh);
-	if (transaction->t_checkpoint_io_list == jh) {
-		transaction->t_checkpoint_io_list = jh->b_cpnext;
-		if (transaction->t_checkpoint_io_list == jh)
-			transaction->t_checkpoint_io_list = NULL;
-	}
-}
-
 /*
  * Check a checkpoint buffer could be release or not.
  *
@@ -505,15 +488,6 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
 			break;
 		if (need_resched() || spin_needbreak(&journal->j_list_lock))
 			break;
-		if (released)
-			continue;
-
-		nr_freed += journal_shrink_one_cp_list(transaction->t_checkpoint_io_list,
-						       nr_to_scan, &released);
-		if (*nr_to_scan == 0)
-			break;
-		if (need_resched() || spin_needbreak(&journal->j_list_lock))
-			break;
 	} while (transaction != last_transaction);
 
 	if (transaction != last_transaction) {
@@ -568,17 +542,6 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
 		 */
 		if (need_resched())
 			return;
-		if (ret)
-			continue;
-		/*
-		 * It is essential that we are as careful as in the case of
-		 * t_checkpoint_list with removing the buffer from the list as
-		 * we can possibly see not yet submitted buffers on io_list
-		 */
-		ret = journal_clean_one_cp_list(transaction->
-				t_checkpoint_io_list, destroy);
-		if (need_resched())
-			return;
 		/*
 		 * Stop scanning if we couldn't free the transaction. This
 		 * avoids pointless scanning of transactions which still
@@ -663,7 +626,7 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh)
 	jbd2_journal_put_journal_head(jh);
 
 	/* Is this transaction empty? */
-	if (transaction->t_checkpoint_list || transaction->t_checkpoint_io_list)
+	if (transaction->t_checkpoint_list)
 		return 0;
 
 	/*
@@ -755,7 +718,6 @@ void __jbd2_journal_drop_transaction(journal_t *journal, transaction_t *transact
 	J_ASSERT(transaction->t_forget == NULL);
 	J_ASSERT(transaction->t_shadow_list == NULL);
 	J_ASSERT(transaction->t_checkpoint_list == NULL);
-	J_ASSERT(transaction->t_checkpoint_io_list == NULL);
 	J_ASSERT(atomic_read(&transaction->t_updates) == 0);
 	J_ASSERT(journal->j_committing_transaction != transaction);
 	J_ASSERT(journal->j_running_transaction != transaction);
diff --git a/fs/jbd2/commit.c b/fs/jbd2/commit.c
index ac328e3321242..20294c1bbeab7 100644
--- a/fs/jbd2/commit.c
+++ b/fs/jbd2/commit.c
@@ -1184,8 +1184,7 @@ void jbd2_journal_commit_transaction(journal_t *journal)
 	spin_lock(&journal->j_list_lock);
 	commit_transaction->t_state = T_FINISHED;
 	/* Check if the transaction can be dropped now that we are finished */
-	if (commit_transaction->t_checkpoint_list == NULL &&
-	    commit_transaction->t_checkpoint_io_list == NULL) {
+	if (commit_transaction->t_checkpoint_list == NULL) {
 		__jbd2_journal_drop_transaction(journal, commit_transaction);
 		jbd2_journal_free_transaction(commit_transaction);
 	}
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index d63b8106796e2..e6cfbcde96f29 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -626,12 +626,6 @@ struct transaction_s
 	 */
 	struct journal_head	*t_checkpoint_list;
 
-	/*
-	 * Doubly-linked circular list of all buffers submitted for IO while
-	 * checkpointing. [j_list_lock]
-	 */
-	struct journal_head	*t_checkpoint_io_list;
-
 	/*
 	 * Doubly-linked circular list of metadata buffers being
 	 * shadowed by log IO.  The IO buffers on the iobuf list and
-- 
2.39.2

[PATCH 5.15 047/155] jbd2: remove journal_clean_one_cp_list()

[Greg Kroah-Hartman]

From: Zhang Yi <yi.zhang@huawei.com>

[ Upstream commit b98dba273a0e47dbfade89c9af73c5b012a4eabb ]

journal_clean_one_cp_list() and journal_shrink_one_cp_list() are almost
the same, so merge them into journal_shrink_one_cp_list(), remove the
nr_to_scan parameter, always scan and try to free the whole checkpoint
list.

Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-4-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Stable-dep-of: 46f881b5b175 ("jbd2: fix a race when checking checkpoint buffer busy")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/jbd2/checkpoint.c        | 75 +++++++++----------------------------
 include/trace/events/jbd2.h | 12 ++----
 2 files changed, 21 insertions(+), 66 deletions(-)

diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index c1f543e86170a..ab72aeb766a74 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -349,50 +349,10 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
 
 /* Checkpoint list management */
 
-/*
- * journal_clean_one_cp_list
- *
- * Find all the written-back checkpoint buffers in the given list and
- * release them. If 'destroy' is set, clean all buffers unconditionally.
- *
- * Called with j_list_lock held.
- * Returns 1 if we freed the transaction, 0 otherwise.
- */
-static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
-{
-	struct journal_head *last_jh;
-	struct journal_head *next_jh = jh;
-
-	if (!jh)
-		return 0;
-
-	last_jh = jh->b_cpprev;
-	do {
-		jh = next_jh;
-		next_jh = jh->b_cpnext;
-
-		if (!destroy && __cp_buffer_busy(jh))
-			return 0;
-
-		if (__jbd2_journal_remove_checkpoint(jh))
-			return 1;
-		/*
-		 * This function only frees up some memory
-		 * if possible so we dont have an obligation
-		 * to finish processing. Bail out if preemption
-		 * requested:
-		 */
-		if (need_resched())
-			return 0;
-	} while (jh != last_jh);
-
-	return 0;
-}
-
 /*
  * journal_shrink_one_cp_list
  *
- * Find 'nr_to_scan' written-back checkpoint buffers in the given list
+ * Find all the written-back checkpoint buffers in the given list
  * and try to release them. If the whole transaction is released, set
  * the 'released' parameter. Return the number of released checkpointed
  * buffers.
@@ -400,15 +360,15 @@ static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
  * Called with j_list_lock held.
  */
 static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
-						unsigned long *nr_to_scan,
-						bool *released)
+						bool destroy, bool *released)
 {
 	struct journal_head *last_jh;
 	struct journal_head *next_jh = jh;
 	unsigned long nr_freed = 0;
 	int ret;
 
-	if (!jh || *nr_to_scan == 0)
+	*released = false;
+	if (!jh)
 		return 0;
 
 	last_jh = jh->b_cpprev;
@@ -416,8 +376,7 @@ static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
 		jh = next_jh;
 		next_jh = jh->b_cpnext;
 
-		(*nr_to_scan)--;
-		if (__cp_buffer_busy(jh))
+		if (!destroy && __cp_buffer_busy(jh))
 			continue;
 
 		nr_freed++;
@@ -429,7 +388,7 @@ static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
 
 		if (need_resched())
 			break;
-	} while (jh != last_jh && *nr_to_scan);
+	} while (jh != last_jh);
 
 	return nr_freed;
 }
@@ -447,11 +406,11 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
 						  unsigned long *nr_to_scan)
 {
 	transaction_t *transaction, *last_transaction, *next_transaction;
-	bool released;
+	bool __maybe_unused released;
 	tid_t first_tid = 0, last_tid = 0, next_tid = 0;
 	tid_t tid = 0;
 	unsigned long nr_freed = 0;
-	unsigned long nr_scanned = *nr_to_scan;
+	unsigned long freed;
 
 again:
 	spin_lock(&journal->j_list_lock);
@@ -480,10 +439,11 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
 		transaction = next_transaction;
 		next_transaction = transaction->t_cpnext;
 		tid = transaction->t_tid;
-		released = false;
 
-		nr_freed += journal_shrink_one_cp_list(transaction->t_checkpoint_list,
-						       nr_to_scan, &released);
+		freed = journal_shrink_one_cp_list(transaction->t_checkpoint_list,
+						   false, &released);
+		nr_freed += freed;
+		(*nr_to_scan) -= min(*nr_to_scan, freed);
 		if (*nr_to_scan == 0)
 			break;
 		if (need_resched() || spin_needbreak(&journal->j_list_lock))
@@ -504,9 +464,8 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
 	if (*nr_to_scan && next_tid)
 		goto again;
 out:
-	nr_scanned -= *nr_to_scan;
 	trace_jbd2_shrink_checkpoint_list(journal, first_tid, tid, last_tid,
-					  nr_freed, nr_scanned, next_tid);
+					  nr_freed, next_tid);
 
 	return nr_freed;
 }
@@ -522,7 +481,7 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
 void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
 {
 	transaction_t *transaction, *last_transaction, *next_transaction;
-	int ret;
+	bool released;
 
 	transaction = journal->j_checkpoint_transactions;
 	if (!transaction)
@@ -533,8 +492,8 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
 	do {
 		transaction = next_transaction;
 		next_transaction = transaction->t_cpnext;
-		ret = journal_clean_one_cp_list(transaction->t_checkpoint_list,
-						destroy);
+		journal_shrink_one_cp_list(transaction->t_checkpoint_list,
+					   destroy, &released);
 		/*
 		 * This function only frees up some memory if possible so we
 		 * dont have an obligation to finish processing. Bail out if
@@ -547,7 +506,7 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
 		 * avoids pointless scanning of transactions which still
 		 * weren't checkpointed.
 		 */
-		if (!ret)
+		if (!released)
 			return;
 	} while (transaction != last_transaction);
 }
diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
index 29414288ea3e0..34ce197bd76e0 100644
--- a/include/trace/events/jbd2.h
+++ b/include/trace/events/jbd2.h
@@ -462,11 +462,9 @@ TRACE_EVENT(jbd2_shrink_scan_exit,
 TRACE_EVENT(jbd2_shrink_checkpoint_list,
 
 	TP_PROTO(journal_t *journal, tid_t first_tid, tid_t tid, tid_t last_tid,
-		 unsigned long nr_freed, unsigned long nr_scanned,
-		 tid_t next_tid),
+		 unsigned long nr_freed, tid_t next_tid),
 
-	TP_ARGS(journal, first_tid, tid, last_tid, nr_freed,
-		nr_scanned, next_tid),
+	TP_ARGS(journal, first_tid, tid, last_tid, nr_freed, next_tid),
 
 	TP_STRUCT__entry(
 		__field(dev_t, dev)
@@ -474,7 +472,6 @@ TRACE_EVENT(jbd2_shrink_checkpoint_list,
 		__field(tid_t, tid)
 		__field(tid_t, last_tid)
 		__field(unsigned long, nr_freed)
-		__field(unsigned long, nr_scanned)
 		__field(tid_t, next_tid)
 	),
 
@@ -484,15 +481,14 @@ TRACE_EVENT(jbd2_shrink_checkpoint_list,
 		__entry->tid		= tid;
 		__entry->last_tid	= last_tid;
 		__entry->nr_freed	= nr_freed;
-		__entry->nr_scanned	= nr_scanned;
 		__entry->next_tid	= next_tid;
 	),
 
 	TP_printk("dev %d,%d shrink transaction %u-%u(%u) freed %lu "
-		  "scanned %lu next transaction %u",
+		  "next transaction %u",
 		  MAJOR(__entry->dev), MINOR(__entry->dev),
 		  __entry->first_tid, __entry->tid, __entry->last_tid,
-		  __entry->nr_freed, __entry->nr_scanned, __entry->next_tid)
+		  __entry->nr_freed, __entry->next_tid)
 );
 
 #endif /* _TRACE_JBD2_H */
-- 
2.39.2

[PATCH 5.15 048/155] jbd2: fix a race when checking checkpoint buffer busy

[Greg Kroah-Hartman]

From: Zhang Yi <yi.zhang@huawei.com>

[ Upstream commit 46f881b5b1758dc4a35fba4a643c10717d0cf427 ]

Before removing checkpoint buffer from the t_checkpoint_list, we have to
check both BH_Dirty and BH_Lock bits together to distinguish buffers
have not been or were being written back. But __cp_buffer_busy() checks
them separately, it first check lock state and then check dirty, the
window between these two checks could be raced by writing back
procedure, which locks buffer and clears buffer dirty before I/O
completes. So it cannot guarantee checkpointing buffers been written
back to disk if some error happens later. Finally, it may clean
checkpoint transactions and lead to inconsistent filesystem.

jbd2_journal_forget() and __journal_try_to_free_buffer() also have the
same problem (journal_unmap_buffer() escape from this issue since it's
running under the buffer lock), so fix them through introducing a new
helper to try holding the buffer lock and remove really clean buffer.

Link: https://bugzilla.kernel.org/show_bug.cgi?id=217490
Cc: stable@vger.kernel.org
Suggested-by: Jan Kara <jack@suse.cz>
Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
Reviewed-by: Jan Kara <jack@suse.cz>
Link: https://lore.kernel.org/r/20230606135928.434610-6-yi.zhang@huaweicloud.com
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/jbd2/checkpoint.c  | 38 +++++++++++++++++++++++++++++++++++---
 fs/jbd2/transaction.c | 17 +++++------------
 include/linux/jbd2.h  |  1 +
 3 files changed, 41 insertions(+), 15 deletions(-)

diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
index ab72aeb766a74..fc6989e7a8c51 100644
--- a/fs/jbd2/checkpoint.c
+++ b/fs/jbd2/checkpoint.c
@@ -376,11 +376,15 @@ static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
 		jh = next_jh;
 		next_jh = jh->b_cpnext;
 
-		if (!destroy && __cp_buffer_busy(jh))
-			continue;
+		if (destroy) {
+			ret = __jbd2_journal_remove_checkpoint(jh);
+		} else {
+			ret = jbd2_journal_try_remove_checkpoint(jh);
+			if (ret < 0)
+				continue;
+		}
 
 		nr_freed++;
-		ret = __jbd2_journal_remove_checkpoint(jh);
 		if (ret) {
 			*released = true;
 			break;
@@ -616,6 +620,34 @@ int __jbd2_journal_remove_checkpoint(struct journal_head *jh)
 	return 1;
 }
 
+/*
+ * Check the checkpoint buffer and try to remove it from the checkpoint
+ * list if it's clean. Returns -EBUSY if it is not clean, returns 1 if
+ * it frees the transaction, 0 otherwise.
+ *
+ * This function is called with j_list_lock held.
+ */
+int jbd2_journal_try_remove_checkpoint(struct journal_head *jh)
+{
+	struct buffer_head *bh = jh2bh(jh);
+
+	if (!trylock_buffer(bh))
+		return -EBUSY;
+	if (buffer_dirty(bh)) {
+		unlock_buffer(bh);
+		return -EBUSY;
+	}
+	unlock_buffer(bh);
+
+	/*
+	 * Buffer is clean and the IO has finished (we held the buffer
+	 * lock) so the checkpoint is done. We can safely remove the
+	 * buffer from this transaction.
+	 */
+	JBUFFER_TRACE(jh, "remove from checkpoint list");
+	return __jbd2_journal_remove_checkpoint(jh);
+}
+
 /*
  * journal_insert_checkpoint: put a committed buffer onto a checkpoint
  * list so that we know when it is safe to clean the transaction out of
diff --git a/fs/jbd2/transaction.c b/fs/jbd2/transaction.c
index ce4a5ccadeff4..62e68c5b8ec3d 100644
--- a/fs/jbd2/transaction.c
+++ b/fs/jbd2/transaction.c
@@ -1775,8 +1775,7 @@ int jbd2_journal_forget(handle_t *handle, struct buffer_head *bh)
 		 * Otherwise, if the buffer has been written to disk,
 		 * it is safe to remove the checkpoint and drop it.
 		 */
-		if (!buffer_dirty(bh)) {
-			__jbd2_journal_remove_checkpoint(jh);
+		if (jbd2_journal_try_remove_checkpoint(jh) >= 0) {
 			spin_unlock(&journal->j_list_lock);
 			goto drop;
 		}
@@ -2103,20 +2102,14 @@ __journal_try_to_free_buffer(journal_t *journal, struct buffer_head *bh)
 
 	jh = bh2jh(bh);
 
-	if (buffer_locked(bh) || buffer_dirty(bh))
-		goto out;
-
 	if (jh->b_next_transaction != NULL || jh->b_transaction != NULL)
-		goto out;
+		return;
 
 	spin_lock(&journal->j_list_lock);
-	if (jh->b_cp_transaction != NULL) {
-		/* written-back checkpointed metadata buffer */
-		JBUFFER_TRACE(jh, "remove from checkpoint list");
-		__jbd2_journal_remove_checkpoint(jh);
-	}
+	/* Remove written-back checkpointed metadata buffer */
+	if (jh->b_cp_transaction != NULL)
+		jbd2_journal_try_remove_checkpoint(jh);
 	spin_unlock(&journal->j_list_lock);
-out:
 	return;
 }
 
diff --git a/include/linux/jbd2.h b/include/linux/jbd2.h
index e6cfbcde96f29..ade8a6d7acff9 100644
--- a/include/linux/jbd2.h
+++ b/include/linux/jbd2.h
@@ -1441,6 +1441,7 @@ extern void jbd2_journal_commit_transaction(journal_t *);
 void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy);
 unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal, unsigned long *nr_to_scan);
 int __jbd2_journal_remove_checkpoint(struct journal_head *);
+int jbd2_journal_try_remove_checkpoint(struct journal_head *jh);
 void jbd2_journal_destroy_checkpoint(journal_t *journal);
 void __jbd2_journal_insert_checkpoint(struct journal_head *, transaction_t *);
 
-- 
2.39.2

[PATCH 5.15 049/155] phy: qcom-snps: Use dev_err_probe() to simplify code

[Greg Kroah-Hartman]

From: Yuan Can <yuancan@huawei.com>

[ Upstream commit 668dc8afce43d4bc01feb3e929d6d5ffcb14f899 ]

In the probe path, dev_err() can be replaced with dev_err_probe()
which will check if error code is -EPROBE_DEFER and prints the
error name. It also sets the defer probe reason which can be
checked later through debugfs.

Signed-off-by: Yuan Can <yuancan@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Andrew Halaney <ahalaney@redhat.com>
Link: https://lore.kernel.org/r/20220922111228.36355-8-yuancan@huawei.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: 8a0eb8f9b9a0 ("phy: qcom-snps-femto-v2: properly enable ref clock")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 18 ++++++------------
 1 file changed, 6 insertions(+), 12 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index 7e61202aa234e..54846259405a9 100644
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -304,12 +304,9 @@ static int qcom_snps_hsphy_probe(struct platform_device *pdev)
 		return PTR_ERR(hsphy->base);
 
 	hsphy->ref_clk = devm_clk_get(dev, "ref");
-	if (IS_ERR(hsphy->ref_clk)) {
-		ret = PTR_ERR(hsphy->ref_clk);
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to get ref clk, %d\n", ret);
-		return ret;
-	}
+	if (IS_ERR(hsphy->ref_clk))
+		return dev_err_probe(dev, PTR_ERR(hsphy->ref_clk),
+				     "failed to get ref clk\n");
 
 	hsphy->phy_reset = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (IS_ERR(hsphy->phy_reset)) {
@@ -322,12 +319,9 @@ static int qcom_snps_hsphy_probe(struct platform_device *pdev)
 		hsphy->vregs[i].supply = qcom_snps_hsphy_vreg_names[i];
 
 	ret = devm_regulator_bulk_get(dev, num, hsphy->vregs);
-	if (ret) {
-		if (ret != -EPROBE_DEFER)
-			dev_err(dev, "failed to get regulator supplies: %d\n",
-				ret);
-		return ret;
-	}
+	if (ret)
+		return dev_err_probe(dev, ret,
+				     "failed to get regulator supplies\n");
 
 	pm_runtime_set_active(dev);
 	pm_runtime_enable(dev);
-- 
2.39.2

[PATCH 5.15 050/155] phy: qcom-snps: correct struct qcom_snps_hsphy kerneldoc

[Greg Kroah-Hartman]

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>

[ Upstream commit 2a881183dc5ab2474ef602e48fe7af34db460d95 ]

Update kerneldoc of struct qcom_snps_hsphy to fix:

  drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c:135: warning: Function parameter or member 'update_seq_cfg' not described in 'qcom_snps_hsphy'

Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Link: https://lore.kernel.org/r/20230507144818.193039-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: 8a0eb8f9b9a0 ("phy: qcom-snps-femto-v2: properly enable ref clock")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index 54846259405a9..136b45903c798 100644
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -73,11 +73,11 @@ static const char * const qcom_snps_hsphy_vreg_names[] = {
  *
  * @cfg_ahb_clk: AHB2PHY interface clock
  * @ref_clk: phy reference clock
- * @iface_clk: phy interface clock
  * @phy_reset: phy reset control
  * @vregs: regulator supplies bulk data
  * @phy_initialized: if PHY has been initialized correctly
  * @mode: contains the current mode the PHY is in
+ * @update_seq_cfg: tuning parameters for phy init
  */
 struct qcom_snps_hsphy {
 	struct phy *phy;
-- 
2.39.2

[PATCH 5.15 051/155] phy: qcom-snps-femto-v2: keep cfg_ahb_clk enabled during runtime suspend

[Greg Kroah-Hartman]

From: Adrien Thierry <athierry@redhat.com>

[ Upstream commit 45d89a344eb46db9dce851c28e14f5e3c635c251 ]

In the dwc3 core, both system and runtime suspend end up calling
dwc3_suspend_common(). From there, what happens for the PHYs depends on
the USB mode and whether the controller is entering system or runtime
suspend.

HOST mode:
  (1) system suspend on a non-wakeup-capable controller

  The [1] if branch is taken. dwc3_core_exit() is called, which ends up
  calling phy_power_off() and phy_exit(). Those two functions decrease the
  PM runtime count at some point, so they will trigger the PHY runtime
  sleep (assuming the count is right).

  (2) runtime suspend / system suspend on a wakeup-capable controller

  The [1] branch is not taken. dwc3_suspend_common() calls
  phy_pm_runtime_put_sync(). Assuming the ref count is right, the PHY
  runtime suspend op is called.

DEVICE mode:
  dwc3_core_exit() is called on both runtime and system sleep
  unless the controller is already runtime suspended.

OTG mode:
  (1) system suspend : dwc3_core_exit() is called

  (2) runtime suspend : do nothing

In host mode, the code seems to make a distinction between 1) runtime
sleep / system sleep for wakeup-capable controller, and 2) system sleep
for non-wakeup-capable controller, where phy_power_off() and phy_exit()
are only called for the latter. This suggests the PHY is not supposed to
be in a fully powered-off state for runtime sleep and system sleep for
wakeup-capable controller.

Moreover, downstream, cfg_ahb_clk only gets disabled for system suspend.
The clocks are disabled by phy->set_suspend() [2] which is only called
in the system sleep path through dwc3_core_exit() [3].

With that in mind, don't disable the clocks during the femto PHY runtime
suspend callback. The clocks will only be disabled during system suspend
for non-wakeup-capable controllers, through dwc3_core_exit().

[1] https://elixir.bootlin.com/linux/v6.4/source/drivers/usb/dwc3/core.c#L1988
[2] https://git.codelinaro.org/clo/la/kernel/msm-5.4/-/blob/LV.AU.1.2.1.r2-05300-gen3meta.0/drivers/usb/phy/phy-msm-snps-hs.c#L524
[3] https://git.codelinaro.org/clo/la/kernel/msm-5.4/-/blob/LV.AU.1.2.1.r2-05300-gen3meta.0/drivers/usb/dwc3/core.c#L1915

Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20230629144542.14906-2-athierry@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Stable-dep-of: 8a0eb8f9b9a0 ("phy: qcom-snps-femto-v2: properly enable ref clock")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 9 ---------
 1 file changed, 9 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index 136b45903c798..dfe5f09449100 100644
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -122,22 +122,13 @@ static int qcom_snps_hsphy_suspend(struct qcom_snps_hsphy *hsphy)
 					   0, USB2_AUTO_RESUME);
 	}
 
-	clk_disable_unprepare(hsphy->cfg_ahb_clk);
 	return 0;
 }
 
 static int qcom_snps_hsphy_resume(struct qcom_snps_hsphy *hsphy)
 {
-	int ret;
-
 	dev_dbg(&hsphy->phy->dev, "Resume QCOM SNPS PHY, mode\n");
 
-	ret = clk_prepare_enable(hsphy->cfg_ahb_clk);
-	if (ret) {
-		dev_err(&hsphy->phy->dev, "failed to enable cfg ahb clock\n");
-		return ret;
-	}
-
 	return 0;
 }
 
-- 
2.39.2

[PATCH 5.15 052/155] phy: qcom-snps-femto-v2: properly enable ref clock

[Greg Kroah-Hartman]

From: Adrien Thierry <athierry@redhat.com>

[ Upstream commit 8a0eb8f9b9a002291a3934acfd913660b905249e ]

The driver is not enabling the ref clock, which thus gets disabled by
the clk_disable_unused() initcall. This leads to the dwc3 controller
failing to initialize if probed after clk_disable_unused() is called,
for instance when the driver is built as a module.

To fix this, switch to the clk_bulk API to handle both cfg_ahb and ref
clocks at the proper places.

Note that the cfg_ahb clock is currently not used by any device tree
instantiation of the PHY. Work needs to be done separately to fix this.

Link: https://lore.kernel.org/linux-arm-msm/ZEqvy+khHeTkC2hf@fedora/
Fixes: 51e8114f80d0 ("phy: qcom-snps: Add SNPS USB PHY driver for QCOM based SOCs")
Signed-off-by: Adrien Thierry <athierry@redhat.com>
Link: https://lore.kernel.org/r/20230629144542.14906-3-athierry@redhat.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c | 63 ++++++++++++++-----
 1 file changed, 48 insertions(+), 15 deletions(-)

diff --git a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
index dfe5f09449100..abb9264569336 100644
--- a/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
+++ b/drivers/phy/qualcomm/phy-qcom-snps-femto-v2.c
@@ -68,11 +68,13 @@ static const char * const qcom_snps_hsphy_vreg_names[] = {
 /**
  * struct qcom_snps_hsphy - snps hs phy attributes
  *
+ * @dev: device structure
+ *
  * @phy: generic phy
  * @base: iomapped memory space for snps hs phy
  *
- * @cfg_ahb_clk: AHB2PHY interface clock
- * @ref_clk: phy reference clock
+ * @num_clks: number of clocks
+ * @clks: array of clocks
  * @phy_reset: phy reset control
  * @vregs: regulator supplies bulk data
  * @phy_initialized: if PHY has been initialized correctly
@@ -80,11 +82,13 @@ static const char * const qcom_snps_hsphy_vreg_names[] = {
  * @update_seq_cfg: tuning parameters for phy init
  */
 struct qcom_snps_hsphy {
+	struct device *dev;
+
 	struct phy *phy;
 	void __iomem *base;
 
-	struct clk *cfg_ahb_clk;
-	struct clk *ref_clk;
+	int num_clks;
+	struct clk_bulk_data *clks;
 	struct reset_control *phy_reset;
 	struct regulator_bulk_data vregs[SNPS_HS_NUM_VREGS];
 
@@ -92,6 +96,34 @@ struct qcom_snps_hsphy {
 	enum phy_mode mode;
 };
 
+static int qcom_snps_hsphy_clk_init(struct qcom_snps_hsphy *hsphy)
+{
+	struct device *dev = hsphy->dev;
+
+	hsphy->num_clks = 2;
+	hsphy->clks = devm_kcalloc(dev, hsphy->num_clks, sizeof(*hsphy->clks), GFP_KERNEL);
+	if (!hsphy->clks)
+		return -ENOMEM;
+
+	/*
+	 * TODO: Currently no device tree instantiation of the PHY is using the clock.
+	 * This needs to be fixed in order for this code to be able to use devm_clk_bulk_get().
+	 */
+	hsphy->clks[0].id = "cfg_ahb";
+	hsphy->clks[0].clk = devm_clk_get_optional(dev, "cfg_ahb");
+	if (IS_ERR(hsphy->clks[0].clk))
+		return dev_err_probe(dev, PTR_ERR(hsphy->clks[0].clk),
+				     "failed to get cfg_ahb clk\n");
+
+	hsphy->clks[1].id = "ref";
+	hsphy->clks[1].clk = devm_clk_get(dev, "ref");
+	if (IS_ERR(hsphy->clks[1].clk))
+		return dev_err_probe(dev, PTR_ERR(hsphy->clks[1].clk),
+				     "failed to get ref clk\n");
+
+	return 0;
+}
+
 static inline void qcom_snps_hsphy_write_mask(void __iomem *base, u32 offset,
 						u32 mask, u32 val)
 {
@@ -174,16 +206,16 @@ static int qcom_snps_hsphy_init(struct phy *phy)
 	if (ret)
 		return ret;
 
-	ret = clk_prepare_enable(hsphy->cfg_ahb_clk);
+	ret = clk_bulk_prepare_enable(hsphy->num_clks, hsphy->clks);
 	if (ret) {
-		dev_err(&phy->dev, "failed to enable cfg ahb clock, %d\n", ret);
+		dev_err(&phy->dev, "failed to enable clocks, %d\n", ret);
 		goto poweroff_phy;
 	}
 
 	ret = reset_control_assert(hsphy->phy_reset);
 	if (ret) {
 		dev_err(&phy->dev, "failed to assert phy_reset, %d\n", ret);
-		goto disable_ahb_clk;
+		goto disable_clks;
 	}
 
 	usleep_range(100, 150);
@@ -191,7 +223,7 @@ static int qcom_snps_hsphy_init(struct phy *phy)
 	ret = reset_control_deassert(hsphy->phy_reset);
 	if (ret) {
 		dev_err(&phy->dev, "failed to de-assert phy_reset, %d\n", ret);
-		goto disable_ahb_clk;
+		goto disable_clks;
 	}
 
 	qcom_snps_hsphy_write_mask(hsphy->base, USB2_PHY_USB_PHY_CFG0,
@@ -237,8 +269,8 @@ static int qcom_snps_hsphy_init(struct phy *phy)
 
 	return 0;
 
-disable_ahb_clk:
-	clk_disable_unprepare(hsphy->cfg_ahb_clk);
+disable_clks:
+	clk_bulk_disable_unprepare(hsphy->num_clks, hsphy->clks);
 poweroff_phy:
 	regulator_bulk_disable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs);
 
@@ -250,7 +282,7 @@ static int qcom_snps_hsphy_exit(struct phy *phy)
 	struct qcom_snps_hsphy *hsphy = phy_get_drvdata(phy);
 
 	reset_control_assert(hsphy->phy_reset);
-	clk_disable_unprepare(hsphy->cfg_ahb_clk);
+	clk_bulk_disable_unprepare(hsphy->num_clks, hsphy->clks);
 	regulator_bulk_disable(ARRAY_SIZE(hsphy->vregs), hsphy->vregs);
 	hsphy->phy_initialized = false;
 
@@ -290,14 +322,15 @@ static int qcom_snps_hsphy_probe(struct platform_device *pdev)
 	if (!hsphy)
 		return -ENOMEM;
 
+	hsphy->dev = dev;
+
 	hsphy->base = devm_platform_ioremap_resource(pdev, 0);
 	if (IS_ERR(hsphy->base))
 		return PTR_ERR(hsphy->base);
 
-	hsphy->ref_clk = devm_clk_get(dev, "ref");
-	if (IS_ERR(hsphy->ref_clk))
-		return dev_err_probe(dev, PTR_ERR(hsphy->ref_clk),
-				     "failed to get ref clk\n");
+	ret = qcom_snps_hsphy_clk_init(hsphy);
+	if (ret)
+		return dev_err_probe(dev, ret, "failed to initialize clocks\n");
 
 	hsphy->phy_reset = devm_reset_control_get_exclusive(&pdev->dev, NULL);
 	if (IS_ERR(hsphy->phy_reset)) {
-- 
2.39.2

[PATCH 5.15 053/155] soundwire: qcom: update status correctly with mask

[Greg Kroah-Hartman]

From: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>

[ Upstream commit f84d41b2a083b990cbdf70f3b24b6b108b9678ad ]

SoundWire device status can be incorrectly updated without
proper mask, fix this by adding a mask before updating the status.

Fixes: c7d49c76d1d5 ("soundwire: qcom: add support to new interrupts")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Link: https://lore.kernel.org/r/20230525133812.30841-2-srinivas.kandagatla@linaro.org
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/soundwire/qcom.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/soundwire/qcom.c b/drivers/soundwire/qcom.c
index 2045bcdfce1ab..e3b52d5aa411e 100644
--- a/drivers/soundwire/qcom.c
+++ b/drivers/soundwire/qcom.c
@@ -405,7 +405,7 @@ static int qcom_swrm_get_alert_slave_dev_num(struct qcom_swrm_ctrl *ctrl)
 		status = (val >> (dev_num * SWRM_MCP_SLV_STATUS_SZ));
 
 		if ((status & SWRM_MCP_SLV_STATUS_MASK) == SDW_SLAVE_ALERT) {
-			ctrl->status[dev_num] = status;
+			ctrl->status[dev_num] = status & SWRM_MCP_SLV_STATUS_MASK;
 			return dev_num;
 		}
 	}
-- 
2.39.2

[PATCH 5.15 054/155] media: staging: atomisp: select V4L2_FWNODE

[Greg Kroah-Hartman]

From: Sakari Ailus <sakari.ailus@linux.intel.com>

[ Upstream commit bf4c985707d3168ebb7d87d15830de66949d979c ]

Select V4L2_FWNODE as the driver depends on it.

Reported-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Fixes: aa31f6514047 ("media: atomisp: allow building the driver again")
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Tested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/staging/media/atomisp/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/staging/media/atomisp/Kconfig b/drivers/staging/media/atomisp/Kconfig
index aeed5803dfb1e..0031d76356c1c 100644
--- a/drivers/staging/media/atomisp/Kconfig
+++ b/drivers/staging/media/atomisp/Kconfig
@@ -13,6 +13,7 @@ config VIDEO_ATOMISP
 	tristate "Intel Atom Image Signal Processor Driver"
 	depends on VIDEO_V4L2 && INTEL_ATOMISP
 	depends on PMIC_OPREGION
+	select V4L2_FWNODE
 	select IOSF_MBI
 	select VIDEOBUF_VMALLOC
 	select VIDEO_V4L2_SUBDEV_API
-- 
2.39.2

[PATCH 5.15 055/155] i40e: Fix an NULL vs IS_ERR() bug for debugfs_create_dir()

[Greg Kroah-Hartman]

From: Wang Ming <machel@vivo.com>

[ Upstream commit 043b1f185fb0f3939b7427f634787706f45411c4 ]

The debugfs_create_dir() function returns error pointers.
It never returns NULL. Most incorrect error checks were fixed,
but the one in i40e_dbg_init() was forgotten.

Fix the remaining error check.

Fixes: 02e9c290814c ("i40e: debugfs interface")
Signed-off-by: Wang Ming <machel@vivo.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
index c057343165a51..7c5f874ef335a 100644
--- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c
@@ -1839,7 +1839,7 @@ void i40e_dbg_pf_exit(struct i40e_pf *pf)
 void i40e_dbg_init(void)
 {
 	i40e_dbg_root = debugfs_create_dir(i40e_driver_name, NULL);
-	if (!i40e_dbg_root)
+	if (IS_ERR(i40e_dbg_root))
 		pr_info("init of debugfs failed\n");
 }
 
-- 
2.39.2

[PATCH 5.15 056/155] iavf: fix potential deadlock on allocation failure

[Greg Kroah-Hartman]

From: Jacob Keller <jacob.e.keller@intel.com>

[ Upstream commit a2f054c10bef0b54600ec9cb776508443e941343 ]

In iavf_adminq_task(), if kzalloc() fails to allocate the event.msg_buf,
the function will exit without releasing the adapter->crit_lock.

This is unlikely, but if it happens, the next access to that mutex will
deadlock.

Fix this by moving the unlock to the end of the function, and adding a new
label to allow jumping to the unlock portion of the function exit flow.

Fixes: fc2e6b3b132a ("iavf: Rework mutexes for better synchronisation")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index bcceb2ddfea63..1e349a90d21aa 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2546,7 +2546,7 @@ static void iavf_adminq_task(struct work_struct *work)
 	event.buf_len = IAVF_MAX_AQ_BUF_SIZE;
 	event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
 	if (!event.msg_buf)
-		goto out;
+		goto unlock;
 
 	do {
 		ret = iavf_clean_arq_element(hw, &event, &pending);
@@ -2561,7 +2561,6 @@ static void iavf_adminq_task(struct work_struct *work)
 		if (pending != 0)
 			memset(event.msg_buf, 0, IAVF_MAX_AQ_BUF_SIZE);
 	} while (pending);
-	mutex_unlock(&adapter->crit_lock);
 
 	if ((adapter->flags & IAVF_FLAG_SETUP_NETDEV_FEATURES)) {
 		if (adapter->netdev_registered ||
@@ -2619,6 +2618,8 @@ static void iavf_adminq_task(struct work_struct *work)
 
 freedom:
 	kfree(event.msg_buf);
+unlock:
+	mutex_unlock(&adapter->crit_lock);
 out:
 	/* re-enable Admin queue interrupt cause */
 	iavf_misc_irq_enable(adapter);
-- 
2.39.2

[PATCH 5.15 057/155] iavf: check for removal state before IAVF_FLAG_PF_COMMS_FAILED

[Greg Kroah-Hartman]

From: Jacob Keller <jacob.e.keller@intel.com>

[ Upstream commit 91896c8acce23d33ed078cffd46a9534b1f82be5 ]

In iavf_adminq_task(), if the function can't acquire the
adapter->crit_lock, it checks if the driver is removing. If so, it simply
exits without re-enabling the interrupt. This is done to ensure that the
task stops processing as soon as possible once the driver is being removed.

However, if the IAVF_FLAG_PF_COMMS_FAILED is set, the function checks this
before attempting to acquire the lock. In this case, the function exits
early and re-enables the interrupt. This will happen even if the driver is
already removing.

Avoid this, by moving the check to after the adapter->crit_lock is
acquired. This way, if the driver is removing, we will not re-enable the
interrupt.

Fixes: fc2e6b3b132a ("iavf: Rework mutexes for better synchronisation")
Signed-off-by: Jacob Keller <jacob.e.keller@intel.com>
Tested-by: Rafal Romanowski <rafal.romanowski@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/iavf/iavf_main.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/intel/iavf/iavf_main.c b/drivers/net/ethernet/intel/iavf/iavf_main.c
index 1e349a90d21aa..a87f4f1ae6845 100644
--- a/drivers/net/ethernet/intel/iavf/iavf_main.c
+++ b/drivers/net/ethernet/intel/iavf/iavf_main.c
@@ -2532,9 +2532,6 @@ static void iavf_adminq_task(struct work_struct *work)
 	u32 val, oldval;
 	u16 pending;
 
-	if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
-		goto out;
-
 	if (!mutex_trylock(&adapter->crit_lock)) {
 		if (adapter->state == __IAVF_REMOVE)
 			return;
@@ -2543,6 +2540,9 @@ static void iavf_adminq_task(struct work_struct *work)
 		goto out;
 	}
 
+	if (adapter->flags & IAVF_FLAG_PF_COMMS_FAILED)
+		goto unlock;
+
 	event.buf_len = IAVF_MAX_AQ_BUF_SIZE;
 	event.msg_buf = kzalloc(event.buf_len, GFP_KERNEL);
 	if (!event.msg_buf)
-- 
2.39.2

[PATCH 5.15 058/155] net: phy: marvell10g: fix 88x3310 power up

[Greg Kroah-Hartman]

From: Jiawen Wu <jiawenwu@trustnetic.com>

[ Upstream commit c7b75bea853daeb64fc831dbf39a6bbabcc402ac ]

Clear MV_V2_PORT_CTRL_PWRDOWN bit to set power up for 88x3310 PHY,
it sometimes does not take effect immediately. And a read of this
register causes the bit not to clear. This will cause mv3310_reset()
to time out, which will fail the config initialization. So add a delay
before the next access.

Fixes: c9cc1c815d36 ("net: phy: marvell10g: place in powersave mode at probe")
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/phy/marvell10g.c | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/drivers/net/phy/marvell10g.c b/drivers/net/phy/marvell10g.c
index df33637c5269a..1caa6d943a7b7 100644
--- a/drivers/net/phy/marvell10g.c
+++ b/drivers/net/phy/marvell10g.c
@@ -307,6 +307,13 @@ static int mv3310_power_up(struct phy_device *phydev)
 	ret = phy_clear_bits_mmd(phydev, MDIO_MMD_VEND2, MV_V2_PORT_CTRL,
 				 MV_V2_PORT_CTRL_PWRDOWN);
 
+	/* Sometimes, the power down bit doesn't clear immediately, and
+	 * a read of this register causes the bit not to clear. Delay
+	 * 100us to allow the PHY to come out of power down mode before
+	 * the next access.
+	 */
+	udelay(100);
+
 	if (phydev->drv->phy_id != MARVELL_PHY_ID_88X3310 ||
 	    priv->firmware_ver < 0x00030000)
 		return ret;
-- 
2.39.2

[PATCH 5.15 059/155] net: hns3: fix wrong tc bandwidth weight data issue

[Greg Kroah-Hartman]

From: Jijie Shao <shaojijie@huawei.com>

[ Upstream commit 116d9f732eef634abbd871f2c6f613a5b4677742 ]

Currently, the weight saved by the driver is used as the query result,
which may be different from the actual weight in the register.
Therefore, the register value read from the firmware is used
as the query result

Fixes: 0e32038dc856 ("net: hns3: refactor dump tc of debugfs")
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
index 9cda8b3562b89..dd8b73aebe6a5 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_debugfs.c
@@ -677,8 +677,7 @@ static int hclge_dbg_dump_tc(struct hclge_dev *hdev, char *buf, int len)
 	for (i = 0; i < HNAE3_MAX_TC; i++) {
 		sch_mode_str = ets_weight->tc_weight[i] ? "dwrr" : "sp";
 		pos += scnprintf(buf + pos, len - pos, "%u     %4s    %3u\n",
-				 i, sch_mode_str,
-				 hdev->tm_info.pg_info[0].tc_dwrr[i]);
+				 i, sch_mode_str, ets_weight->tc_weight[i]);
 	}
 
 	return 0;
-- 
2.39.2

[PATCH 5.15 060/155] net: hns3: fix wrong bw weight of disabled tc issue

[Greg Kroah-Hartman]

From: Jijie Shao <shaojijie@huawei.com>

[ Upstream commit 882481b1c55fc44861d7e2d54b4e0936b1b39f2c ]

In dwrr mode, the default bandwidth weight of disabled tc is set to 0.
If the bandwidth weight is 0, the mode will change to sp.
Therefore, disabled tc default bandwidth weight need changed to 1,
and 0 is returned when query the bandwidth weight of disabled tc.
In addition, driver need stop configure bandwidth weight if tc is disabled.

Fixes: 848440544b41 ("net: hns3: Add support of TX Scheduler & Shaper to HNS3 driver")
Signed-off-by: Jie Wang <wangjie125@huawei.com>
Signed-off-by: Jijie Shao <shaojijie@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c  | 17 ++++++++++++++---
 .../ethernet/hisilicon/hns3/hns3pf/hclge_tm.c   |  3 ++-
 2 files changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
index 375ebf105a9aa..87640a2e1794b 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_dcb.c
@@ -52,7 +52,10 @@ static void hclge_tm_info_to_ieee_ets(struct hclge_dev *hdev,
 
 	for (i = 0; i < HNAE3_MAX_TC; i++) {
 		ets->prio_tc[i] = hdev->tm_info.prio_tc[i];
-		ets->tc_tx_bw[i] = hdev->tm_info.pg_info[0].tc_dwrr[i];
+		if (i < hdev->tm_info.num_tc)
+			ets->tc_tx_bw[i] = hdev->tm_info.pg_info[0].tc_dwrr[i];
+		else
+			ets->tc_tx_bw[i] = 0;
 
 		if (hdev->tm_info.tc_info[i].tc_sch_mode ==
 		    HCLGE_SCH_MODE_SP)
@@ -123,7 +126,8 @@ static u8 hclge_ets_tc_changed(struct hclge_dev *hdev, struct ieee_ets *ets,
 }
 
 static int hclge_ets_sch_mode_validate(struct hclge_dev *hdev,
-				       struct ieee_ets *ets, bool *changed)
+				       struct ieee_ets *ets, bool *changed,
+				       u8 tc_num)
 {
 	bool has_ets_tc = false;
 	u32 total_ets_bw = 0;
@@ -137,6 +141,13 @@ static int hclge_ets_sch_mode_validate(struct hclge_dev *hdev,
 				*changed = true;
 			break;
 		case IEEE_8021QAZ_TSA_ETS:
+			if (i >= tc_num) {
+				dev_err(&hdev->pdev->dev,
+					"tc%u is disabled, cannot set ets bw\n",
+					i);
+				return -EINVAL;
+			}
+
 			/* The hardware will switch to sp mode if bandwidth is
 			 * 0, so limit ets bandwidth must be greater than 0.
 			 */
@@ -176,7 +187,7 @@ static int hclge_ets_validate(struct hclge_dev *hdev, struct ieee_ets *ets,
 	if (ret)
 		return ret;
 
-	ret = hclge_ets_sch_mode_validate(hdev, ets, changed);
+	ret = hclge_ets_sch_mode_validate(hdev, ets, changed, tc_num);
 	if (ret)
 		return ret;
 
diff --git a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
index 97a6864f60ef4..e7cb6a81e5b67 100644
--- a/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
+++ b/drivers/net/ethernet/hisilicon/hns3/hns3pf/hclge_tm.c
@@ -732,6 +732,7 @@ static void hclge_tm_tc_info_init(struct hclge_dev *hdev)
 static void hclge_tm_pg_info_init(struct hclge_dev *hdev)
 {
 #define BW_PERCENT	100
+#define DEFAULT_BW_WEIGHT	1
 
 	u8 i;
 
@@ -753,7 +754,7 @@ static void hclge_tm_pg_info_init(struct hclge_dev *hdev)
 		for (k = 0; k < hdev->tm_info.num_tc; k++)
 			hdev->tm_info.pg_info[i].tc_dwrr[k] = BW_PERCENT;
 		for (; k < HNAE3_MAX_TC; k++)
-			hdev->tm_info.pg_info[i].tc_dwrr[k] = 0;
+			hdev->tm_info.pg_info[i].tc_dwrr[k] = DEFAULT_BW_WEIGHT;
 	}
 }
 
-- 
2.39.2

[PATCH 5.15 061/155] vxlan: move to its own directory

[Greg Kroah-Hartman]

From: Roopa Prabhu <roopa@nvidia.com>

[ Upstream commit 6765393614ea8e2c0a7b953063513823f87c9115 ]

vxlan.c has grown too long. This patch moves
it to its own directory. subsequent patches add new
functionality in new files.

Signed-off-by: Roopa Prabhu <roopa@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 94d166c5318c ("vxlan: calculate correct header length for GPE")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/Makefile                        | 2 +-
 drivers/net/vxlan/Makefile                  | 7 +++++++
 drivers/net/{vxlan.c => vxlan/vxlan_core.c} | 0
 3 files changed, 8 insertions(+), 1 deletion(-)
 create mode 100644 drivers/net/vxlan/Makefile
 rename drivers/net/{vxlan.c => vxlan/vxlan_core.c} (100%)

diff --git a/drivers/net/Makefile b/drivers/net/Makefile
index 739838623cf65..50e60852f1286 100644
--- a/drivers/net/Makefile
+++ b/drivers/net/Makefile
@@ -30,7 +30,7 @@ obj-$(CONFIG_TUN) += tun.o
 obj-$(CONFIG_TAP) += tap.o
 obj-$(CONFIG_VETH) += veth.o
 obj-$(CONFIG_VIRTIO_NET) += virtio_net.o
-obj-$(CONFIG_VXLAN) += vxlan.o
+obj-$(CONFIG_VXLAN) += vxlan/
 obj-$(CONFIG_GENEVE) += geneve.o
 obj-$(CONFIG_BAREUDP) += bareudp.o
 obj-$(CONFIG_GTP) += gtp.o
diff --git a/drivers/net/vxlan/Makefile b/drivers/net/vxlan/Makefile
new file mode 100644
index 0000000000000..5672661335933
--- /dev/null
+++ b/drivers/net/vxlan/Makefile
@@ -0,0 +1,7 @@
+#
+# Makefile for the vxlan driver
+#
+
+obj-$(CONFIG_VXLAN) += vxlan.o
+
+vxlan-objs := vxlan_core.o
diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan/vxlan_core.c
similarity index 100%
rename from drivers/net/vxlan.c
rename to drivers/net/vxlan/vxlan_core.c
-- 
2.39.2

[PATCH 5.15 062/155] vxlan: calculate correct header length for GPE

[Greg Kroah-Hartman]

From: Jiri Benc <jbenc@redhat.com>

[ Upstream commit 94d166c5318c6edd1e079df8552233443e909c33 ]

VXLAN-GPE does not add an extra inner Ethernet header. Take that into
account when calculating header length.

This causes problems in skb_tunnel_check_pmtu, where incorrect PMTU is
cached.

In the collect_md mode (which is the only mode that VXLAN-GPE
supports), there's no magic auto-setting of the tunnel interface MTU.
It can't be, since the destination and thus the underlying interface
may be different for each packet.

So, the administrator is responsible for setting the correct tunnel
interface MTU. Apparently, the administrators are capable enough to
calculate that the maximum MTU for VXLAN-GPE is (their_lower_MTU - 36).
They set the tunnel interface MTU to 1464. If you run a TCP stream over
such interface, it's then segmented according to the MTU 1464, i.e.
producing 1514 bytes frames. Which is okay, this still fits the lower
MTU.

However, skb_tunnel_check_pmtu (called from vxlan_xmit_one) uses 50 as
the header size and thus incorrectly calculates the frame size to be
1528. This leads to ICMP too big message being generated (locally),
PMTU of 1450 to be cached and the TCP stream to be resegmented.

The fix is to use the correct actual header size, especially for
skb_tunnel_check_pmtu calculation.

Fixes: e1e5314de08ba ("vxlan: implement GPE")
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ixgbe/ixgbe_main.c |  2 +-
 drivers/net/vxlan/vxlan_core.c                | 23 ++++++++-----------
 include/net/vxlan.h                           | 13 +++++++----
 3 files changed, 20 insertions(+), 18 deletions(-)

diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
index 6fb9c18297bc8..af824370a2f6f 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_main.c
@@ -8398,7 +8398,7 @@ static void ixgbe_atr(struct ixgbe_ring *ring,
 		struct ixgbe_adapter *adapter = q_vector->adapter;
 
 		if (unlikely(skb_tail_pointer(skb) < hdr.network +
-			     VXLAN_HEADROOM))
+			     vxlan_headroom(0)))
 			return;
 
 		/* verify the port is recognized as VXLAN */
diff --git a/drivers/net/vxlan/vxlan_core.c b/drivers/net/vxlan/vxlan_core.c
index 129e270e9a7cd..106b66570e046 100644
--- a/drivers/net/vxlan/vxlan_core.c
+++ b/drivers/net/vxlan/vxlan_core.c
@@ -2721,7 +2721,7 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 		}
 
 		ndst = &rt->dst;
-		err = skb_tunnel_check_pmtu(skb, ndst, VXLAN_HEADROOM,
+		err = skb_tunnel_check_pmtu(skb, ndst, vxlan_headroom(flags & VXLAN_F_GPE),
 					    netif_is_any_bridge_port(dev));
 		if (err < 0) {
 			goto tx_error;
@@ -2782,7 +2782,8 @@ static void vxlan_xmit_one(struct sk_buff *skb, struct net_device *dev,
 				goto out_unlock;
 		}
 
-		err = skb_tunnel_check_pmtu(skb, ndst, VXLAN6_HEADROOM,
+		err = skb_tunnel_check_pmtu(skb, ndst,
+					    vxlan_headroom((flags & VXLAN_F_GPE) | VXLAN_F_IPV6),
 					    netif_is_any_bridge_port(dev));
 		if (err < 0) {
 			goto tx_error;
@@ -3159,14 +3160,12 @@ static int vxlan_change_mtu(struct net_device *dev, int new_mtu)
 	struct vxlan_rdst *dst = &vxlan->default_dst;
 	struct net_device *lowerdev = __dev_get_by_index(vxlan->net,
 							 dst->remote_ifindex);
-	bool use_ipv6 = !!(vxlan->cfg.flags & VXLAN_F_IPV6);
 
 	/* This check is different than dev->max_mtu, because it looks at
 	 * the lowerdev->mtu, rather than the static dev->max_mtu
 	 */
 	if (lowerdev) {
-		int max_mtu = lowerdev->mtu -
-			      (use_ipv6 ? VXLAN6_HEADROOM : VXLAN_HEADROOM);
+		int max_mtu = lowerdev->mtu - vxlan_headroom(vxlan->cfg.flags);
 		if (new_mtu > max_mtu)
 			return -EINVAL;
 	}
@@ -3788,11 +3787,11 @@ static void vxlan_config_apply(struct net_device *dev,
 	struct vxlan_dev *vxlan = netdev_priv(dev);
 	struct vxlan_rdst *dst = &vxlan->default_dst;
 	unsigned short needed_headroom = ETH_HLEN;
-	bool use_ipv6 = !!(conf->flags & VXLAN_F_IPV6);
 	int max_mtu = ETH_MAX_MTU;
+	u32 flags = conf->flags;
 
 	if (!changelink) {
-		if (conf->flags & VXLAN_F_GPE)
+		if (flags & VXLAN_F_GPE)
 			vxlan_raw_setup(dev);
 		else
 			vxlan_ether_setup(dev);
@@ -3818,8 +3817,7 @@ static void vxlan_config_apply(struct net_device *dev,
 
 		dev->needed_tailroom = lowerdev->needed_tailroom;
 
-		max_mtu = lowerdev->mtu - (use_ipv6 ? VXLAN6_HEADROOM :
-					   VXLAN_HEADROOM);
+		max_mtu = lowerdev->mtu - vxlan_headroom(flags);
 		if (max_mtu < ETH_MIN_MTU)
 			max_mtu = ETH_MIN_MTU;
 
@@ -3830,10 +3828,9 @@ static void vxlan_config_apply(struct net_device *dev,
 	if (dev->mtu > max_mtu)
 		dev->mtu = max_mtu;
 
-	if (use_ipv6 || conf->flags & VXLAN_F_COLLECT_METADATA)
-		needed_headroom += VXLAN6_HEADROOM;
-	else
-		needed_headroom += VXLAN_HEADROOM;
+	if (flags & VXLAN_F_COLLECT_METADATA)
+		flags |= VXLAN_F_IPV6;
+	needed_headroom += vxlan_headroom(flags);
 	dev->needed_headroom = needed_headroom;
 
 	memcpy(&vxlan->cfg, conf, sizeof(*conf));
diff --git a/include/net/vxlan.h b/include/net/vxlan.h
index 08537aa14f7c3..cf1d870f7b9a8 100644
--- a/include/net/vxlan.h
+++ b/include/net/vxlan.h
@@ -327,10 +327,15 @@ static inline netdev_features_t vxlan_features_check(struct sk_buff *skb,
 	return features;
 }
 
-/* IP header + UDP + VXLAN + Ethernet header */
-#define VXLAN_HEADROOM (20 + 8 + 8 + 14)
-/* IPv6 header + UDP + VXLAN + Ethernet header */
-#define VXLAN6_HEADROOM (40 + 8 + 8 + 14)
+static inline int vxlan_headroom(u32 flags)
+{
+	/* VXLAN:     IP4/6 header + UDP + VXLAN + Ethernet header */
+	/* VXLAN-GPE: IP4/6 header + UDP + VXLAN */
+	return (flags & VXLAN_F_IPV6 ? sizeof(struct ipv6hdr) :
+				       sizeof(struct iphdr)) +
+	       sizeof(struct udphdr) + sizeof(struct vxlanhdr) +
+	       (flags & VXLAN_F_GPE ? 0 : ETH_HLEN);
+}
 
 static inline struct vxlanhdr *vxlan_hdr(struct sk_buff *skb)
 {
-- 
2.39.2

[PATCH 5.15 063/155] phy: hisilicon: Fix an out of bounds check in hisi_inno_phy_probe()

[Greg Kroah-Hartman]

From: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>

[ Upstream commit 13c088cf3657d70893d75cf116be937f1509cc0f ]

The size of array 'priv->ports[]' is INNO_PHY_PORT_NUM.

In the for loop, 'i' is used as the index for array 'priv->ports[]'
with a check (i > INNO_PHY_PORT_NUM) which indicates that
INNO_PHY_PORT_NUM is allowed value for 'i' in the same loop.

This > comparison needs to be changed to >=, otherwise it potentially leads
to an out of bounds write on the next iteration through the loop

Fixes: ba8b0ee81fbb ("phy: add inno-usb2-phy driver for hi3798cv200 SoC")
Reported-by: Dan Carpenter <dan.carpenter@linaro.org>
Signed-off-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>
Link: https://lore.kernel.org/r/20230721090558.3588613-1-harshit.m.mogalapalli@oracle.com
Signed-off-by: Vinod Koul <vkoul@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/phy/hisilicon/phy-hisi-inno-usb2.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
index 34a6a9a1ceb25..897c6bb4cbb8c 100644
--- a/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
+++ b/drivers/phy/hisilicon/phy-hisi-inno-usb2.c
@@ -153,7 +153,7 @@ static int hisi_inno_phy_probe(struct platform_device *pdev)
 		phy_set_drvdata(phy, &priv->ports[i]);
 		i++;
 
-		if (i > INNO_PHY_PORT_NUM) {
+		if (i >= INNO_PHY_PORT_NUM) {
 			dev_warn(dev, "Support %d ports in maximum\n", i);
 			break;
 		}
-- 
2.39.2

[PATCH 5.15 064/155] ethernet: atheros: fix return value check in atl1e_tso_csum()

[Greg Kroah-Hartman]

From: Yuanjun Gong <ruc_gongyuanjun@163.com>

[ Upstream commit 69a184f7a372aac588babfb0bd681aaed9779f5b ]

in atl1e_tso_csum, it should check the return value of pskb_trim(),
and return an error code if an unexpected value is returned
by pskb_trim().

Fixes: a6a5325239c2 ("atl1e: Atheros L1E Gigabit Ethernet driver")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230720144219.39285-1-ruc_gongyuanjun@163.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/atheros/atl1e/atl1e_main.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

diff --git a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
index 753973ac922e9..db13311e77e73 100644
--- a/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
+++ b/drivers/net/ethernet/atheros/atl1e/atl1e_main.c
@@ -1642,8 +1642,11 @@ static int atl1e_tso_csum(struct atl1e_adapter *adapter,
 			real_len = (((unsigned char *)ip_hdr(skb) - skb->data)
 					+ ntohs(ip_hdr(skb)->tot_len));
 
-			if (real_len < skb->len)
-				pskb_trim(skb, real_len);
+			if (real_len < skb->len) {
+				err = pskb_trim(skb, real_len);
+				if (err)
+					return err;
+			}
 
 			hdr_len = (skb_transport_offset(skb) + tcp_hdrlen(skb));
 			if (unlikely(skb->len == hdr_len)) {
-- 
2.39.2

[PATCH 5.15 065/155] ipv6 addrconf: fix bug where deleting a mngtmpaddr can create a new temporary address

[Greg Kroah-Hartman]

From: Maciej Żenczykowski <maze@google.com>

[ Upstream commit 69172f0bcb6a09110c5d2a6d792627f5095a9018 ]

currently on 6.4 net/main:

  # ip link add dummy1 type dummy
  # echo 1 > /proc/sys/net/ipv6/conf/dummy1/use_tempaddr
  # ip link set dummy1 up
  # ip -6 addr add 2000::1/64 mngtmpaddr dev dummy1
  # ip -6 addr show dev dummy1

  11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
      inet6 2000::44f3:581c:8ca:3983/64 scope global temporary dynamic
         valid_lft 604800sec preferred_lft 86172sec
      inet6 2000::1/64 scope global mngtmpaddr
         valid_lft forever preferred_lft forever
      inet6 fe80::e8a8:a6ff:fed5:56d4/64 scope link
         valid_lft forever preferred_lft forever

  # ip -6 addr del 2000::44f3:581c:8ca:3983/64 dev dummy1

  (can wait a few seconds if you want to, the above delete isn't [directly] the problem)

  # ip -6 addr show dev dummy1

  11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
      inet6 2000::1/64 scope global mngtmpaddr
         valid_lft forever preferred_lft forever
      inet6 fe80::e8a8:a6ff:fed5:56d4/64 scope link
         valid_lft forever preferred_lft forever

  # ip -6 addr del 2000::1/64 mngtmpaddr dev dummy1
  # ip -6 addr show dev dummy1

  11: dummy1: <BROADCAST,NOARP,UP,LOWER_UP> mtu 1500 qdisc noqueue state UNKNOWN group default qlen 1000
      inet6 2000::81c9:56b7:f51a:b98f/64 scope global temporary dynamic
         valid_lft 604797sec preferred_lft 86169sec
      inet6 fe80::e8a8:a6ff:fed5:56d4/64 scope link
         valid_lft forever preferred_lft forever

This patch prevents this new 'global temporary dynamic' address from being
created by the deletion of the related (same subnet prefix) 'mngtmpaddr'
(which is triggered by there already being no temporary addresses).

Cc: Jiri Pirko <jiri@resnulli.us>
Fixes: 53bd67491537 ("ipv6 addrconf: introduce IFA_F_MANAGETEMPADDR to tell kernel to manage temporary addresses")
Reported-by: Xiao Ma <xiaom@google.com>
Signed-off-by: Maciej Żenczykowski <maze@google.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://lore.kernel.org/r/20230720160022.1887942-1-maze@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/ipv6/addrconf.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

diff --git a/net/ipv6/addrconf.c b/net/ipv6/addrconf.c
index e0d3909172a84..0c0b7969840f5 100644
--- a/net/ipv6/addrconf.c
+++ b/net/ipv6/addrconf.c
@@ -2565,12 +2565,18 @@ static void manage_tempaddrs(struct inet6_dev *idev,
 			ipv6_ifa_notify(0, ift);
 	}
 
-	if ((create || list_empty(&idev->tempaddr_list)) &&
-	    idev->cnf.use_tempaddr > 0) {
+	/* Also create a temporary address if it's enabled but no temporary
+	 * address currently exists.
+	 * However, we get called with valid_lft == 0, prefered_lft == 0, create == false
+	 * as part of cleanup (ie. deleting the mngtmpaddr).
+	 * We don't want that to result in creating a new temporary ip address.
+	 */
+	if (list_empty(&idev->tempaddr_list) && (valid_lft || prefered_lft))
+		create = true;
+
+	if (create && idev->cnf.use_tempaddr > 0) {
 		/* When a new public address is created as described
 		 * in [ADDRCONF], also create a new temporary address.
-		 * Also create a temporary address if it's enabled but
-		 * no temporary address currently exists.
 		 */
 		read_unlock_bh(&idev->lock);
 		ipv6_create_tempaddr(ifp, false);
-- 
2.39.2

[PATCH 5.15 066/155] tcp: Reduce chance of collisions in inet6_hashfn().

[Greg Kroah-Hartman]

From: Stewart Smith <trawets@amazon.com>

[ Upstream commit d11b0df7ddf1831f3e170972f43186dad520bfcc ]

For both IPv4 and IPv6 incoming TCP connections are tracked in a hash
table with a hash over the source & destination addresses and ports.
However, the IPv6 hash is insufficient and can lead to a high rate of
collisions.

The IPv6 hash used an XOR to fit everything into the 96 bits for the
fast jenkins hash, meaning it is possible for an external entity to
ensure the hash collides, thus falling back to a linear search in the
bucket, which is slow.

We take the approach of hash the full length of IPv6 address in
__ipv6_addr_jhash() so that all users can benefit from a more secure
version.

While this may look like it adds overhead, the reality of modern CPUs
means that this is unmeasurable in real world scenarios.

In simulating with llvm-mca, the increase in cycles for the hashing
code was ~16 cycles on Skylake (from a base of ~155), and an extra ~9
on Nehalem (base of ~173).

In commit dd6d2910c5e0 ("netfilter: conntrack: switch to siphash")
netfilter switched from a jenkins hash to a siphash, but even the faster
hsiphash is a more significant overhead (~20-30%) in some preliminary
testing.  So, in this patch, we keep to the more conservative approach to
ensure we don't add much overhead per SYN.

In testing, this results in a consistently even spread across the
connection buckets.  In both testing and real-world scenarios, we have
not found any measurable performance impact.

Fixes: 08dcdbf6a7b9 ("ipv6: use a stronger hash for tcp")
Signed-off-by: Stewart Smith <trawets@amazon.com>
Signed-off-by: Samuel Mendoza-Jonas <samjonas@amazon.com>
Suggested-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://lore.kernel.org/r/20230721222410.17914-1-kuniyu@amazon.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/ipv6.h | 8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

diff --git a/include/net/ipv6.h b/include/net/ipv6.h
index e3ab99f4edab7..20930086b2288 100644
--- a/include/net/ipv6.h
+++ b/include/net/ipv6.h
@@ -664,12 +664,8 @@ static inline u32 ipv6_addr_hash(const struct in6_addr *a)
 /* more secured version of ipv6_addr_hash() */
 static inline u32 __ipv6_addr_jhash(const struct in6_addr *a, const u32 initval)
 {
-	u32 v = (__force u32)a->s6_addr32[0] ^ (__force u32)a->s6_addr32[1];
-
-	return jhash_3words(v,
-			    (__force u32)a->s6_addr32[2],
-			    (__force u32)a->s6_addr32[3],
-			    initval);
+	return jhash2((__force const u32 *)a->s6_addr32,
+		      ARRAY_SIZE(a->s6_addr32), initval);
 }
 
 static inline bool ipv6_addr_loopback(const struct in6_addr *a)
-- 
2.39.2

[PATCH 5.15 067/155] ice: Fix memory management in ice_ethtool_fdir.c

[Greg Kroah-Hartman]

From: Jedrzej Jagielski <jedrzej.jagielski@intel.com>

[ Upstream commit a3336056504d780590ac6d6ac94fbba829994594 ]

Fix ethtool FDIR logic to not use memory after its release.
In the ice_ethtool_fdir.c file there are 2 spots where code can
refer to pointers which may be missing.

In the ice_cfg_fdir_xtrct_seq() function seg may be freed but
even then may be still used by memcpy(&tun_seg[1], seg, sizeof(*seg)).

In the ice_add_fdir_ethtool() function struct ice_fdir_fltr *input
may first fail to be added via ice_fdir_update_list_entry() but then
may be deleted by ice_fdir_update_list_entry.

Terminate in both cases when the returned value of the previous
operation is other than 0, free memory and don't use it anymore.

Reported-by: Michal Schmidt <mschmidt@redhat.com>
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2208423
Fixes: cac2a27cd9ab ("ice: Support IPv4 Flow Director filters")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Signed-off-by: Jedrzej Jagielski <jedrzej.jagielski@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Tested-by: Pucha Himasekhar Reddy <himasekharx.reddy.pucha@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Link: https://lore.kernel.org/r/20230721155854.1292805-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/intel/ice/ice_ethtool_fdir.c | 26 ++++++++++---------
 1 file changed, 14 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
index 16de603b280c6..0106ea3519a01 100644
--- a/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
+++ b/drivers/net/ethernet/intel/ice/ice_ethtool_fdir.c
@@ -1135,16 +1135,21 @@ ice_cfg_fdir_xtrct_seq(struct ice_pf *pf, struct ethtool_rx_flow_spec *fsp,
 				     ICE_FLOW_FLD_OFF_INVAL);
 	}
 
-	/* add filter for outer headers */
 	fltr_idx = ice_ethtool_flow_to_fltr(fsp->flow_type & ~FLOW_EXT);
+
+	assign_bit(fltr_idx, hw->fdir_perfect_fltr, perfect_filter);
+
+	/* add filter for outer headers */
 	ret = ice_fdir_set_hw_fltr_rule(pf, seg, fltr_idx,
 					ICE_FD_HW_SEG_NON_TUN);
-	if (ret == -EEXIST)
-		/* Rule already exists, free memory and continue */
-		devm_kfree(dev, seg);
-	else if (ret)
+	if (ret == -EEXIST) {
+		/* Rule already exists, free memory and count as success */
+		ret = 0;
+		goto err_exit;
+	} else if (ret) {
 		/* could not write filter, free memory */
 		goto err_exit;
+	}
 
 	/* make tunneled filter HW entries if possible */
 	memcpy(&tun_seg[1], seg, sizeof(*seg));
@@ -1159,18 +1164,13 @@ ice_cfg_fdir_xtrct_seq(struct ice_pf *pf, struct ethtool_rx_flow_spec *fsp,
 		devm_kfree(dev, tun_seg);
 	}
 
-	if (perfect_filter)
-		set_bit(fltr_idx, hw->fdir_perfect_fltr);
-	else
-		clear_bit(fltr_idx, hw->fdir_perfect_fltr);
-
 	return ret;
 
 err_exit:
 	devm_kfree(dev, tun_seg);
 	devm_kfree(dev, seg);
 
-	return -EOPNOTSUPP;
+	return ret;
 }
 
 /**
@@ -1684,7 +1684,9 @@ int ice_add_fdir_ethtool(struct ice_vsi *vsi, struct ethtool_rxnfc *cmd)
 	input->comp_report = ICE_FXD_FLTR_QW0_COMP_REPORT_SW_FAIL;
 
 	/* input struct is added to the HW filter list */
-	ice_fdir_update_list_entry(pf, input, fsp->location);
+	ret = ice_fdir_update_list_entry(pf, input, fsp->location);
+	if (ret)
+		goto release_lock;
 
 	ret = ice_fdir_write_all_fltr(pf, input, true);
 	if (ret)
-- 
2.39.2

[PATCH 5.15 068/155] bonding: reset bonds flags when down link is P2P device

[Greg Kroah-Hartman]

From: Hangbin Liu <liuhangbin@gmail.com>

[ Upstream commit da19a2b967cf1e2c426f50d28550d1915214a81d ]

When adding a point to point downlink to the bond, we neglected to reset
the bond's flags, which were still using flags like BROADCAST and
MULTICAST. Consequently, this would initiate ARP/DAD for P2P downlink
interfaces, such as when adding a GRE device to the bonding.

To address this issue, let's reset the bond's flags for P2P interfaces.

Before fix:
7: gre0@NONE: <POINTOPOINT,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue master bond0 state UNKNOWN group default qlen 1000
    link/gre6 2006:70:10::1 peer 2006:70:10::2 permaddr 167f:18:f188::
8: bond0: <BROADCAST,MULTICAST,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/gre6 2006:70:10::1 brd 2006:70:10::2
    inet6 fe80::200:ff:fe00:0/64 scope link
       valid_lft forever preferred_lft forever

After fix:
7: gre0@NONE: <POINTOPOINT,NOARP,SLAVE,UP,LOWER_UP> mtu 1500 qdisc noqueue master bond2 state UNKNOWN group default qlen 1000
    link/gre6 2006:70:10::1 peer 2006:70:10::2 permaddr c29e:557a:e9d9::
8: bond0: <POINTOPOINT,NOARP,MASTER,UP,LOWER_UP> mtu 1500 qdisc noqueue state UP group default qlen 1000
    link/gre6 2006:70:10::1 peer 2006:70:10::2
    inet6 fe80::1/64 scope link
       valid_lft forever preferred_lft forever

Reported-by: Liang Li <liali@redhat.com>
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2221438
Fixes: 872254dd6b1f ("net/bonding: Enable bonding to enslave non ARPHRD_ETHER")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/bonding/bond_main.c | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 7b0b4049bd294..69cc36c0840f7 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -1482,6 +1482,11 @@ static void bond_setup_by_slave(struct net_device *bond_dev,
 
 	memcpy(bond_dev->broadcast, slave_dev->broadcast,
 		slave_dev->addr_len);
+
+	if (slave_dev->flags & IFF_POINTOPOINT) {
+		bond_dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST);
+		bond_dev->flags |= (IFF_POINTOPOINT | IFF_NOARP);
+	}
 }
 
 /* On bonding slaves other than the currently active slave, suppress
-- 
2.39.2

[PATCH 5.15 069/155] team: reset teams flags when down link is P2P device

[Greg Kroah-Hartman]

From: Hangbin Liu <liuhangbin@gmail.com>

[ Upstream commit fa532bee17d15acf8bba4bc8e2062b7a093ba801 ]

When adding a point to point downlink to team device, we neglected to reset
the team's flags, which were still using flags like BROADCAST and
MULTICAST. Consequently, this would initiate ARP/DAD for P2P downlink
interfaces, such as when adding a GRE device to team device. Fix this by
remove multicast/broadcast flags and add p2p and noarp flags.

After removing the none ethernet interface and adding an ethernet interface
to team, we need to reset team interface flags. Unlike bonding interface,
team do not need restore IFF_MASTER, IFF_SLAVE flags.

Reported-by: Liang Li <liali@redhat.com>
Closes: https://bugzilla.redhat.com/show_bug.cgi?id=2221438
Fixes: 1d76efe1577b ("team: add support for non-ethernet devices")
Signed-off-by: Hangbin Liu <liuhangbin@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/team/team.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/net/team/team.c b/drivers/net/team/team.c
index d9386d614a94c..4dfa9c610974a 100644
--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -2130,6 +2130,15 @@ static void team_setup_by_port(struct net_device *dev,
 	dev->mtu = port_dev->mtu;
 	memcpy(dev->broadcast, port_dev->broadcast, port_dev->addr_len);
 	eth_hw_addr_inherit(dev, port_dev);
+
+	if (port_dev->flags & IFF_POINTOPOINT) {
+		dev->flags &= ~(IFF_BROADCAST | IFF_MULTICAST);
+		dev->flags |= (IFF_POINTOPOINT | IFF_NOARP);
+	} else if ((port_dev->flags & (IFF_BROADCAST | IFF_MULTICAST)) ==
+		    (IFF_BROADCAST | IFF_MULTICAST)) {
+		dev->flags |= (IFF_BROADCAST | IFF_MULTICAST);
+		dev->flags &= ~(IFF_POINTOPOINT | IFF_NOARP);
+	}
 }
 
 static int team_dev_type_check_change(struct net_device *dev,
-- 
2.39.2

[PATCH 5.15 070/155] net: stmmac: Apply redundant write work around on 4.xx too

[Greg Kroah-Hartman]

From: Vincent Whitchurch <vincent.whitchurch@axis.com>

[ Upstream commit 284779dbf4e98753458708783af8c35630674a21 ]

commit a3a57bf07de23fe1ff779e0fdf710aa581c3ff73 ("net: stmmac: work
around sporadic tx issue on link-up") worked around a problem with TX
sometimes not working after a link-up by avoiding a redundant write to
MAC_CTRL_REG (aka GMAC_CONFIG), since the IP appeared to have problems
with handling multiple writes to that register in some cases.

That commit however only added the work around to dwmac_lib.c (apart
from the common code in stmmac_main.c), but my systems with version
4.21a of the IP exhibit the same problem, so add the work around to
dwmac4_lib.c too.

Fixes: a3a57bf07de2 ("net: stmmac: work around sporadic tx issue on link-up")
Signed-off-by: Vincent Whitchurch <vincent.whitchurch@axis.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Link: https://lore.kernel.org/r/20230721-stmmac-tx-workaround-v1-1-9411cbd5ee07@axis.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
index 9292a1fab7d32..7011c08d2e012 100644
--- a/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
+++ b/drivers/net/ethernet/stmicro/stmmac/dwmac4_lib.c
@@ -207,13 +207,15 @@ void stmmac_dwmac4_set_mac_addr(void __iomem *ioaddr, u8 addr[6],
 void stmmac_dwmac4_set_mac(void __iomem *ioaddr, bool enable)
 {
 	u32 value = readl(ioaddr + GMAC_CONFIG);
+	u32 old_val = value;
 
 	if (enable)
 		value |= GMAC_CONFIG_RE | GMAC_CONFIG_TE;
 	else
 		value &= ~(GMAC_CONFIG_TE | GMAC_CONFIG_RE);
 
-	writel(value, ioaddr + GMAC_CONFIG);
+	if (value != old_val)
+		writel(value, ioaddr + GMAC_CONFIG);
 }
 
 void stmmac_dwmac4_get_mac_addr(void __iomem *ioaddr, unsigned char *addr,
-- 
2.39.2

[PATCH 5.15 071/155] platform/x86: msi-laptop: Fix rfkill out-of-sync on MSI Wind U100

[Greg Kroah-Hartman]

From: Maxim Mikityanskiy <maxtram95@gmail.com>

[ Upstream commit ad084a6d99bc182bf109c190c808e2ea073ec57b ]

Only the HW rfkill state is toggled on laptops with quirks->ec_read_only
(so far only MSI Wind U90/U100). There are, however, a few issues with
the implementation:

1. The initial HW state is always unblocked, regardless of the actual
   state on boot, because msi_init_rfkill only sets the SW state,
   regardless of ec_read_only.

2. The initial SW state corresponds to the actual state on boot, but it
   can't be changed afterwards, because set_device_state returns
   -EOPNOTSUPP. It confuses the userspace, making Wi-Fi and/or Bluetooth
   unusable if it was blocked on boot, and breaking the airplane mode if
   the rfkill was unblocked on boot.

Address the above issues by properly initializing the HW state on
ec_read_only laptops and by allowing the userspace to toggle the SW
state. Don't set the SW state ourselves and let the userspace fully
control it. Toggling the SW state is a no-op, however, it allows the
userspace to properly toggle the airplane mode. The actual SW radio
disablement is handled by the corresponding rtl818x_pci and btusb
drivers that have their own rfkills.

Tested on MSI Wind U100 Plus, BIOS ver 1.0G, EC ver 130.

Fixes: 0816392b97d4 ("msi-laptop: merge quirk tables to one")
Fixes: 0de6575ad0a8 ("msi-laptop: Add MSI Wind U90/U100 support")
Signed-off-by: Maxim Mikityanskiy <maxtram95@gmail.com>
Link: https://lore.kernel.org/r/20230721145423.161057-1-maxtram95@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/msi-laptop.c | 8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

diff --git a/drivers/platform/x86/msi-laptop.c b/drivers/platform/x86/msi-laptop.c
index 0e804b6c2d242..dfb4af759aa75 100644
--- a/drivers/platform/x86/msi-laptop.c
+++ b/drivers/platform/x86/msi-laptop.c
@@ -210,7 +210,7 @@ static ssize_t set_device_state(const char *buf, size_t count, u8 mask)
 		return -EINVAL;
 
 	if (quirks->ec_read_only)
-		return -EOPNOTSUPP;
+		return 0;
 
 	/* read current device state */
 	result = ec_read(MSI_STANDARD_EC_COMMAND_ADDRESS, &rdata);
@@ -841,15 +841,15 @@ static bool msi_laptop_i8042_filter(unsigned char data, unsigned char str,
 static void msi_init_rfkill(struct work_struct *ignored)
 {
 	if (rfk_wlan) {
-		rfkill_set_sw_state(rfk_wlan, !wlan_s);
+		msi_rfkill_set_state(rfk_wlan, !wlan_s);
 		rfkill_wlan_set(NULL, !wlan_s);
 	}
 	if (rfk_bluetooth) {
-		rfkill_set_sw_state(rfk_bluetooth, !bluetooth_s);
+		msi_rfkill_set_state(rfk_bluetooth, !bluetooth_s);
 		rfkill_bluetooth_set(NULL, !bluetooth_s);
 	}
 	if (rfk_threeg) {
-		rfkill_set_sw_state(rfk_threeg, !threeg_s);
+		msi_rfkill_set_state(rfk_threeg, !threeg_s);
 		rfkill_threeg_set(NULL, !threeg_s);
 	}
 }
-- 
2.39.2

[PATCH 5.15 072/155] igc: Fix Kernel Panic during ndo_tx_timeout callback

[Greg Kroah-Hartman]

From: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>

[ Upstream commit d4a7ce642100765119a872d4aba1bf63e3a22c8a ]

The Xeon validation group has been carrying out some loaded tests
with various HW configurations, and they have seen some transmit
queue time out happening during the test. This will cause the
reset adapter function to be called by igc_tx_timeout().
Similar race conditions may arise when the interface is being brought
down and up in igc_reinit_locked(), an interrupt being generated, and
igc_clean_tx_irq() being called to complete the TX.

When the igc_tx_timeout() function is invoked, this patch will turn
off all TX ring HW queues during igc_down() process. TX ring HW queues
will be activated again during the igc_configure_tx_ring() process
when performing the igc_up() procedure later.

This patch also moved existing igc_disable_tx_ring_hw() to avoid using
forward declaration.

Kernel trace:
[ 7678.747813] ------------[ cut here ]------------
[ 7678.757914] NETDEV WATCHDOG: enp1s0 (igc): transmit queue 2 timed out
[ 7678.770117] WARNING: CPU: 0 PID: 13 at net/sched/sch_generic.c:525 dev_watchdog+0x1ae/0x1f0
[ 7678.784459] Modules linked in: xt_conntrack nft_chain_nat xt_MASQUERADE xt_addrtype nft_compat
nf_tables nfnetlink br_netfilter bridge stp llc overlay dm_mod emrcha(PO) emriio(PO) rktpm(PO)
cegbuf_mod(PO) patch_update(PO) se(PO) sgx_tgts(PO) mktme(PO) keylocker(PO) svtdx(PO) svfs_pci_hotplug(PO)
vtd_mod(PO) davemem(PO) svmabort(PO) svindexio(PO) usbx2(PO) ehci_sched(PO) svheartbeat(PO) ioapic(PO)
sv8259(PO) svintr(PO) lt(PO) pcierootport(PO) enginefw_mod(PO) ata(PO) smbus(PO) spiflash_cdf(PO) arden(PO)
dsa_iax(PO) oobmsm_punit(PO) cpm(PO) svkdb(PO) ebg_pch(PO) pch(PO) sviotargets(PO) svbdf(PO) svmem(PO)
svbios(PO) dram(PO) svtsc(PO) targets(PO) superio(PO) svkernel(PO) cswitch(PO) mcf(PO) pentiumIII_mod(PO)
fs_svfs(PO) mdevdefdb(PO) svfs_os_services(O) ixgbe mdio mdio_devres libphy emeraldrapids_svdefs(PO)
regsupport(O) libnvdimm nls_cp437 snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel
snd_intel_dspcfg snd_hda_codec snd_hwdep x86_pkg_temp_thermal snd_hda_core snd_pcm snd_timer isst_if_mbox_pci
[ 7678.784496]  input_leds isst_if_mmio sg snd isst_if_common soundcore wmi button sad9(O) drm fuse backlight
configfs efivarfs ip_tables x_tables vmd sdhci led_class rtl8150 r8152 hid_generic pegasus mmc_block usbhid
mmc_core hid megaraid_sas ixgb igb i2c_algo_bit ice i40e hpsa scsi_transport_sas e1000e e1000 e100 ax88179_178a
usbnet xhci_pci sd_mod xhci_hcd t10_pi crc32c_intel crc64_rocksoft igc crc64 crc_t10dif usbcore
crct10dif_generic ptp crct10dif_common usb_common pps_core
[ 7679.200403] RIP: 0010:dev_watchdog+0x1ae/0x1f0
[ 7679.210201] Code: 28 e9 53 ff ff ff 4c 89 e7 c6 05 06 42 b9 00 01 e8 17 d1 fb ff 44 89 e9 4c
89 e6 48 c7 c7 40 ad fb 81 48 89 c2 e8 52 62 82 ff <0f> 0b e9 72 ff ff ff 65 8b 05 80 7d 7c 7e
89 c0 48 0f a3 05 0a c1
[ 7679.245438] RSP: 0018:ffa00000001f7d90 EFLAGS: 00010282
[ 7679.256021] RAX: 0000000000000000 RBX: ff11000109938440 RCX: 0000000000000000
[ 7679.268710] RDX: ff11000361e26cd8 RSI: ff11000361e1b880 RDI: ff11000361e1b880
[ 7679.281314] RBP: ffa00000001f7da8 R08: ff1100035f8fffe8 R09: 0000000000027ffb
[ 7679.293840] R10: 0000000000001f0a R11: ff1100035f840000 R12: ff11000109938000
[ 7679.306276] R13: 0000000000000002 R14: dead000000000122 R15: ffa00000001f7e18
[ 7679.318648] FS:  0000000000000000(0000) GS:ff11000361e00000(0000) knlGS:0000000000000000
[ 7679.332064] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 7679.342757] CR2: 00007ffff7fca168 CR3: 000000013b08a006 CR4: 0000000000471ef8
[ 7679.354984] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 7679.367207] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
[ 7679.379370] PKRU: 55555554
[ 7679.386446] Call Trace:
[ 7679.393152]  <TASK>
[ 7679.399363]  ? __pfx_dev_watchdog+0x10/0x10
[ 7679.407870]  call_timer_fn+0x31/0x110
[ 7679.415698]  expire_timers+0xb2/0x120
[ 7679.423403]  run_timer_softirq+0x179/0x1e0
[ 7679.431532]  ? __schedule+0x2b1/0x820
[ 7679.439078]  __do_softirq+0xd1/0x295
[ 7679.446426]  ? __pfx_smpboot_thread_fn+0x10/0x10
[ 7679.454867]  run_ksoftirqd+0x22/0x30
[ 7679.462058]  smpboot_thread_fn+0xb7/0x160
[ 7679.469670]  kthread+0xcd/0xf0
[ 7679.476097]  ? __pfx_kthread+0x10/0x10
[ 7679.483211]  ret_from_fork+0x29/0x50
[ 7679.490047]  </TASK>
[ 7679.495204] ---[ end trace 0000000000000000 ]---
[ 7679.503179] igc 0000:01:00.0 enp1s0: Register Dump
[ 7679.511230] igc 0000:01:00.0 enp1s0: Register Name   Value
[ 7679.519892] igc 0000:01:00.0 enp1s0: CTRL            181c0641
[ 7679.528782] igc 0000:01:00.0 enp1s0: STATUS          40280683
[ 7679.537551] igc 0000:01:00.0 enp1s0: CTRL_EXT        10000040
[ 7679.546284] igc 0000:01:00.0 enp1s0: MDIC            180a3800
[ 7679.554942] igc 0000:01:00.0 enp1s0: ICR             00000081
[ 7679.563503] igc 0000:01:00.0 enp1s0: RCTL            04408022
[ 7679.571963] igc 0000:01:00.0 enp1s0: RDLEN[0-3]      00001000 00001000 00001000 00001000
[ 7679.583075] igc 0000:01:00.0 enp1s0: RDH[0-3]        00000068 000000b6 0000000f 00000031
[ 7679.594162] igc 0000:01:00.0 enp1s0: RDT[0-3]        00000066 000000b2 0000000e 00000030
[ 7679.605174] igc 0000:01:00.0 enp1s0: RXDCTL[0-3]     02040808 02040808 02040808 02040808
[ 7679.616196] igc 0000:01:00.0 enp1s0: RDBAL[0-3]      1bb7c000 1bb7f000 1bb82000 0ef33000
[ 7679.627242] igc 0000:01:00.0 enp1s0: RDBAH[0-3]      00000001 00000001 00000001 00000001
[ 7679.638256] igc 0000:01:00.0 enp1s0: TCTL            a503f0fa
[ 7679.646607] igc 0000:01:00.0 enp1s0: TDBAL[0-3]      2ba4a000 1bb6f000 1bb74000 1bb79000
[ 7679.657609] igc 0000:01:00.0 enp1s0: TDBAH[0-3]      00000001 00000001 00000001 00000001
[ 7679.668551] igc 0000:01:00.0 enp1s0: TDLEN[0-3]      00001000 00001000 00001000 00001000
[ 7679.679470] igc 0000:01:00.0 enp1s0: TDH[0-3]        000000a7 0000002d 000000bf 000000d9
[ 7679.690406] igc 0000:01:00.0 enp1s0: TDT[0-3]        000000a7 0000002d 000000bf 000000d9
[ 7679.701264] igc 0000:01:00.0 enp1s0: TXDCTL[0-3]     02100108 02100108 02100108 02100108
[ 7679.712123] igc 0000:01:00.0 enp1s0: Reset adapter
[ 7683.085967] igc 0000:01:00.0 enp1s0: NIC Link is Up 1000 Mbps Full Duplex, Flow Control: RX/TX
[ 8086.945561] ------------[ cut here ]------------
Entering kdb (current=0xffffffff8220b200, pid 0) on processor 0
Oops: (null) due to oops @ 0xffffffff81573888
RIP: 0010:dql_completed+0x148/0x160
Code: c9 00 48 89 57 58 e9 46 ff ff ff 45 85 e4 41 0f 95 c4 41 39 db 0f 95
c1 41 84 cc 74 05 45 85 ed 78 0a 44 89 c1 e9 27 ff ff ff <0f> 0b 01 f6 44 89
c1 29 f1 0f 48 ca eb 8c cc cc cc cc cc cc cc cc
RSP: 0018:ffa0000000003e00 EFLAGS: 00010287
RAX: 000000000000006c RBX: ffa0000003eb0f78 RCX: ff11000109938000
RDX: 0000000000000003 RSI: 0000000000000160 RDI: ff110001002e9480
RBP: ffa0000000003ed8 R08: ff110001002e93c0 R09: ffa0000000003d28
R10: 0000000000007cc0 R11: 0000000000007c54 R12: 00000000ffffffd9
R13: ff1100037039cb00 R14: 00000000ffffffd9 R15: ff1100037039c048
FS:  0000000000000000(0000) GS:ff11000361e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffff7fca168 CR3: 000000013b08a003 CR4: 0000000000471ef8
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <IRQ>
 ? igc_poll+0x1a9/0x14d0 [igc]
 __napi_poll+0x2e/0x1b0
 net_rx_action+0x126/0x250
 __do_softirq+0xd1/0x295
 irq_exit_rcu+0xc5/0xf0
 common_interrupt+0x86/0xa0
 </IRQ>
 <TASK>
 asm_common_interrupt+0x27/0x40
RIP: 0010:cpuidle_enter_state+0xd3/0x3e0
Code: 73 f1 ff ff 49 89 c6 8b 05 e2 ca a7 00 85 c0 0f 8f b3 02 00 00 31 ff e8 1b
de 75 ff 80 7d d7 00 0f 85 cd 01 00 00 fb 45 85 ff <0f> 88 fd 00 00 00 49 63 cf
4c 2b 75 c8 48 8d 04 49 48 89 ca 48 8d
RSP: 0018:ffffffff82203df0 EFLAGS: 00000202
RAX: ff11000361e2a200 RBX: 0000000000000002 RCX: 000000000000001f
RDX: 0000000000000000 RSI: 000000003cf3cf3d RDI: 0000000000000000
RBP: ffffffff82203e28 R08: 0000075ae38471c8 R09: 0000000000000018
R10: 000000000000031a R11: ffffffff8238dca0 R12: ffd1ffffff200000
R13: ffffffff8238dca0 R14: 0000075ae38471c8 R15: 0000000000000002
 cpuidle_enter+0x2e/0x50
 call_cpuidle+0x23/0x40
 do_idle+0x1be/0x220
 cpu_startup_entry+0x20/0x30
 rest_init+0xb5/0xc0
 arch_call_rest_init+0xe/0x30
 start_kernel+0x448/0x760
 x86_64_start_kernel+0x109/0x150
 secondary_startup_64_no_verify+0xe0/0xeb
 </TASK>
more>
[0]kdb>

[0]kdb>
[0]kdb> go
Catastrophic error detected
kdb_continue_catastrophic=0, type go a second time if you really want to
continue
[0]kdb> go
Catastrophic error detected
kdb_continue_catastrophic=0, attempting to continue
[ 8086.955689] refcount_t: underflow; use-after-free.
[ 8086.955697] WARNING: CPU: 0 PID: 0 at lib/refcount.c:28 refcount_warn_saturate+0xc2/0x110
[ 8086.955706] Modules linked in: xt_conntrack nft_chain_nat xt_MASQUERADE xt_addrtype nft_compat
nf_tables nfnetlink br_netfilter bridge stp llc overlay dm_mod emrcha(PO) emriio(PO) rktpm(PO)
cegbuf_mod(PO) patch_update(PO) se(PO) sgx_tgts(PO) mktme(PO) keylocker(PO) svtdx(PO)
svfs_pci_hotplug(PO) vtd_mod(PO) davemem(PO) svmabort(PO) svindexio(PO) usbx2(PO) ehci_sched(PO)
svheartbeat(PO) ioapic(PO) sv8259(PO) svintr(PO) lt(PO) pcierootport(PO) enginefw_mod(PO) ata(PO)
smbus(PO) spiflash_cdf(PO) arden(PO) dsa_iax(PO) oobmsm_punit(PO) cpm(PO) svkdb(PO) ebg_pch(PO)
pch(PO) sviotargets(PO) svbdf(PO) svmem(PO) svbios(PO) dram(PO) svtsc(PO) targets(PO) superio(PO)
svkernel(PO) cswitch(PO) mcf(PO) pentiumIII_mod(PO) fs_svfs(PO) mdevdefdb(PO) svfs_os_services(O)
ixgbe mdio mdio_devres libphy emeraldrapids_svdefs(PO) regsupport(O) libnvdimm nls_cp437
snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg
snd_hda_codec snd_hwdep x86_pkg_temp_thermal snd_hda_core snd_pcm snd_timer isst_if_mbox_pci
[ 8086.955751]  input_leds isst_if_mmio sg snd isst_if_common soundcore wmi button sad9(O) drm
fuse backlight configfs efivarfs ip_tables x_tables vmd sdhci led_class rtl8150 r8152 hid_generic
pegasus mmc_block usbhid mmc_core hid megaraid_sas ixgb igb i2c_algo_bit ice i40e hpsa
scsi_transport_sas e1000e e1000 e100 ax88179_178a usbnet xhci_pci sd_mod xhci_hcd t10_pi
crc32c_intel crc64_rocksoft igc crc64 crc_t10dif usbcore crct10dif_generic ptp crct10dif_common
usb_common pps_core
[ 8086.955784] RIP: 0010:refcount_warn_saturate+0xc2/0x110
[ 8086.955788] Code: 01 e8 82 e7 b4 ff 0f 0b 5d c3 cc cc cc cc 80 3d 68 c6 eb 00 00 75 81
48 c7 c7 a0 87 f6 81 c6 05 58 c6 eb 00 01 e8 5e e7 b4 ff <0f> 0b 5d c3 cc cc cc cc 80 3d
42 c6 eb 00 00 0f 85 59 ff ff ff 48
[ 8086.955790] RSP: 0018:ffa0000000003da0 EFLAGS: 00010286
[ 8086.955793] RAX: 0000000000000000 RBX: ff1100011da40ee0 RCX: ff11000361e1b888
[ 8086.955794] RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ff11000361e1b880
[ 8086.955795] RBP: ffa0000000003da0 R08: 80000000ffff9f45 R09: ffa0000000003d28
[ 8086.955796] R10: ff1100035f840000 R11: 0000000000000028 R12: ff11000319ff8000
[ 8086.955797] R13: ff1100011bb79d60 R14: 00000000ffffffd6 R15: ff1100037039cb00
[ 8086.955798] FS:  0000000000000000(0000) GS:ff11000361e00000(0000) knlGS:0000000000000000
[ 8086.955800] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8086.955801] CR2: 00007ffff7fca168 CR3: 000000013b08a003 CR4: 0000000000471ef8
[ 8086.955803] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8086.955803] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
[ 8086.955804] PKRU: 55555554
[ 8086.955805] Call Trace:
[ 8086.955806]  <IRQ>
[ 8086.955808]  tcp_wfree+0x112/0x130
[ 8086.955814]  skb_release_head_state+0x24/0xa0
[ 8086.955818]  napi_consume_skb+0x9c/0x160
[ 8086.955821]  igc_poll+0x5d8/0x14d0 [igc]
[ 8086.955835]  __napi_poll+0x2e/0x1b0
[ 8086.955839]  net_rx_action+0x126/0x250
[ 8086.955843]  __do_softirq+0xd1/0x295
[ 8086.955846]  irq_exit_rcu+0xc5/0xf0
[ 8086.955851]  common_interrupt+0x86/0xa0
[ 8086.955857]  </IRQ>
[ 8086.955857]  <TASK>
[ 8086.955858]  asm_common_interrupt+0x27/0x40
[ 8086.955862] RIP: 0010:cpuidle_enter_state+0xd3/0x3e0
[ 8086.955866] Code: 73 f1 ff ff 49 89 c6 8b 05 e2 ca a7 00 85 c0 0f 8f b3 02 00 00 31 ff e8
1b de 75 ff 80 7d d7 00 0f 85 cd 01 00 00 fb 45 85 ff <0f> 88 fd 00 00 00 49 63 cf 4c 2b 75
c8 48 8d 04 49 48 89 ca 48 8d
[ 8086.955867] RSP: 0018:ffffffff82203df0 EFLAGS: 00000202
[ 8086.955869] RAX: ff11000361e2a200 RBX: 0000000000000002 RCX: 000000000000001f
[ 8086.955870] RDX: 0000000000000000 RSI: 000000003cf3cf3d RDI: 0000000000000000
[ 8086.955871] RBP: ffffffff82203e28 R08: 0000075ae38471c8 R09: 0000000000000018
[ 8086.955872] R10: 000000000000031a R11: ffffffff8238dca0 R12: ffd1ffffff200000
[ 8086.955873] R13: ffffffff8238dca0 R14: 0000075ae38471c8 R15: 0000000000000002
[ 8086.955875]  cpuidle_enter+0x2e/0x50
[ 8086.955880]  call_cpuidle+0x23/0x40
[ 8086.955884]  do_idle+0x1be/0x220
[ 8086.955887]  cpu_startup_entry+0x20/0x30
[ 8086.955889]  rest_init+0xb5/0xc0
[ 8086.955892]  arch_call_rest_init+0xe/0x30
[ 8086.955895]  start_kernel+0x448/0x760
[ 8086.955898]  x86_64_start_kernel+0x109/0x150
[ 8086.955900]  secondary_startup_64_no_verify+0xe0/0xeb
[ 8086.955904]  </TASK>
[ 8086.955904] ---[ end trace 0000000000000000 ]---
[ 8086.955912] ------------[ cut here ]------------
[ 8086.955913] kernel BUG at lib/dynamic_queue_limits.c:27!
[ 8086.955918] invalid opcode: 0000 [#1] SMP
[ 8086.955922] RIP: 0010:dql_completed+0x148/0x160
[ 8086.955925] Code: c9 00 48 89 57 58 e9 46 ff ff ff 45 85 e4 41 0f 95 c4 41 39 db
0f 95 c1 41 84 cc 74 05 45 85 ed 78 0a 44 89 c1 e9 27 ff ff ff <0f> 0b 01 f6 44 89
c1 29 f1 0f 48 ca eb 8c cc cc cc cc cc cc cc cc
[ 8086.955927] RSP: 0018:ffa0000000003e00 EFLAGS: 00010287
[ 8086.955928] RAX: 000000000000006c RBX: ffa0000003eb0f78 RCX: ff11000109938000
[ 8086.955929] RDX: 0000000000000003 RSI: 0000000000000160 RDI: ff110001002e9480
[ 8086.955930] RBP: ffa0000000003ed8 R08: ff110001002e93c0 R09: ffa0000000003d28
[ 8086.955931] R10: 0000000000007cc0 R11: 0000000000007c54 R12: 00000000ffffffd9
[ 8086.955932] R13: ff1100037039cb00 R14: 00000000ffffffd9 R15: ff1100037039c048
[ 8086.955933] FS:  0000000000000000(0000) GS:ff11000361e00000(0000) knlGS:0000000000000000
[ 8086.955934] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 8086.955935] CR2: 00007ffff7fca168 CR3: 000000013b08a003 CR4: 0000000000471ef8
[ 8086.955936] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 8086.955937] DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
[ 8086.955938] PKRU: 55555554
[ 8086.955939] Call Trace:
[ 8086.955939]  <IRQ>
[ 8086.955940]  ? igc_poll+0x1a9/0x14d0 [igc]
[ 8086.955949]  __napi_poll+0x2e/0x1b0
[ 8086.955952]  net_rx_action+0x126/0x250
[ 8086.955956]  __do_softirq+0xd1/0x295
[ 8086.955958]  irq_exit_rcu+0xc5/0xf0
[ 8086.955961]  common_interrupt+0x86/0xa0
[ 8086.955964]  </IRQ>
[ 8086.955965]  <TASK>
[ 8086.955965]  asm_common_interrupt+0x27/0x40
[ 8086.955968] RIP: 0010:cpuidle_enter_state+0xd3/0x3e0
[ 8086.955971] Code: 73 f1 ff ff 49 89 c6 8b 05 e2 ca a7 00 85 c0 0f 8f b3 02 00 00
31 ff e8 1b de 75 ff 80 7d d7 00 0f 85 cd 01 00 00 fb 45 85 ff <0f> 88 fd 00 00 00
49 63 cf 4c 2b 75 c8 48 8d 04 49 48 89 ca 48 8d
[ 8086.955972] RSP: 0018:ffffffff82203df0 EFLAGS: 00000202
[ 8086.955973] RAX: ff11000361e2a200 RBX: 0000000000000002 RCX: 000000000000001f
[ 8086.955974] RDX: 0000000000000000 RSI: 000000003cf3cf3d RDI: 0000000000000000
[ 8086.955974] RBP: ffffffff82203e28 R08: 0000075ae38471c8 R09: 0000000000000018
[ 8086.955975] R10: 000000000000031a R11: ffffffff8238dca0 R12: ffd1ffffff200000
[ 8086.955976] R13: ffffffff8238dca0 R14: 0000075ae38471c8 R15: 0000000000000002
[ 8086.955978]  cpuidle_enter+0x2e/0x50
[ 8086.955981]  call_cpuidle+0x23/0x40
[ 8086.955984]  do_idle+0x1be/0x220
[ 8086.955985]  cpu_startup_entry+0x20/0x30
[ 8086.955987]  rest_init+0xb5/0xc0
[ 8086.955990]  arch_call_rest_init+0xe/0x30
[ 8086.955992]  start_kernel+0x448/0x760
[ 8086.955994]  x86_64_start_kernel+0x109/0x150
[ 8086.955996]  secondary_startup_64_no_verify+0xe0/0xeb
[ 8086.955998]  </TASK>
[ 8086.955999] Modules linked in: xt_conntrack nft_chain_nat xt_MASQUERADE xt_addrtype
nft_compat nf_tables nfnetlink br_netfilter bridge stp llc overlay dm_mod emrcha(PO) emriio(PO)
rktpm(PO) cegbuf_mod(PO) patch_update(PO) se(PO) sgx_tgts(PO) mktme(PO) keylocker(PO) svtdx(PO)
svfs_pci_hotplug(PO) vtd_mod(PO) davemem(PO) svmabort(PO) svindexio(PO) usbx2(PO) ehci_sched(PO)
svheartbeat(PO) ioapic(PO) sv8259(PO) svintr(PO) lt(PO) pcierootport(PO) enginefw_mod(PO) ata(PO)
smbus(PO) spiflash_cdf(PO) arden(PO) dsa_iax(PO) oobmsm_punit(PO) cpm(PO) svkdb(PO) ebg_pch(PO)
pch(PO) sviotargets(PO) svbdf(PO) svmem(PO) svbios(PO) dram(PO) svtsc(PO) targets(PO) superio(PO)
svkernel(PO) cswitch(PO) mcf(PO) pentiumIII_mod(PO) fs_svfs(PO) mdevdefdb(PO) svfs_os_services(O)
ixgbe mdio mdio_devres libphy emeraldrapids_svdefs(PO) regsupport(O) libnvdimm nls_cp437
snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg
snd_hda_codec snd_hwdep x86_pkg_temp_thermal snd_hda_core snd_pcm snd_timer isst_if_mbox_pci
[ 8086.956029]  input_leds isst_if_mmio sg snd isst_if_common soundcore wmi button sad9(O) drm
fuse backlight configfs efivarfs ip_tables x_tables vmd sdhci led_class rtl8150 r8152 hid_generic
pegasus mmc_block usbhid mmc_core hid megaraid_sas ixgb igb i2c_algo_bit ice i40e hpsa
scsi_transport_sas e1000e e1000 e100 ax88179_178a usbnet xhci_pci sd_mod xhci_hcd t10_pi
crc32c_intel crc64_rocksoft igc crc64 crc_t10dif usbcore crct10dif_generic ptp crct10dif_common
usb_common pps_core
[16762.543675] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.593 msecs
[16762.543678] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.595 msecs
[16762.543673] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.495 msecs
[16762.543679] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.599 msecs
[16762.543678] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.598 msecs
[16762.543690] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.605 msecs
[16762.543684] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.599 msecs
[16762.543693] INFO: NMI handler (kgdb_nmi_handler) took too long to run: 8675587.613 msecs
[16762.543784] ---[ end trace 0000000000000000 ]---
[16762.849099] RIP: 0010:dql_completed+0x148/0x160
PANIC: Fatal exception in interrupt

Fixes: 9b275176270e ("igc: Add ndo_tx_timeout support")
Tested-by: Alejandra Victoria Alcaraz <alejandra.victoria.alcaraz@intel.com>
Signed-off-by: Muhammad Husaini Zulkifli <muhammad.husaini.zulkifli@intel.com>
Acked-by: Sasha Neftin <sasha.neftin@intel.com>
Tested-by: Naama Meir <naamax.meir@linux.intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/igc/igc_main.c | 40 ++++++++++++++++-------
 1 file changed, 28 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/intel/igc/igc_main.c b/drivers/net/ethernet/intel/igc/igc_main.c
index bcc1c428b4cc1..a47dce10d3a78 100644
--- a/drivers/net/ethernet/intel/igc/igc_main.c
+++ b/drivers/net/ethernet/intel/igc/igc_main.c
@@ -316,6 +316,33 @@ static void igc_clean_all_tx_rings(struct igc_adapter *adapter)
 			igc_clean_tx_ring(adapter->tx_ring[i]);
 }
 
+static void igc_disable_tx_ring_hw(struct igc_ring *ring)
+{
+	struct igc_hw *hw = &ring->q_vector->adapter->hw;
+	u8 idx = ring->reg_idx;
+	u32 txdctl;
+
+	txdctl = rd32(IGC_TXDCTL(idx));
+	txdctl &= ~IGC_TXDCTL_QUEUE_ENABLE;
+	txdctl |= IGC_TXDCTL_SWFLUSH;
+	wr32(IGC_TXDCTL(idx), txdctl);
+}
+
+/**
+ * igc_disable_all_tx_rings_hw - Disable all transmit queue operation
+ * @adapter: board private structure
+ */
+static void igc_disable_all_tx_rings_hw(struct igc_adapter *adapter)
+{
+	int i;
+
+	for (i = 0; i < adapter->num_tx_queues; i++) {
+		struct igc_ring *tx_ring = adapter->tx_ring[i];
+
+		igc_disable_tx_ring_hw(tx_ring);
+	}
+}
+
 /**
  * igc_setup_tx_resources - allocate Tx resources (Descriptors)
  * @tx_ring: tx descriptor ring (for a specific queue) to setup
@@ -4975,6 +5002,7 @@ void igc_down(struct igc_adapter *adapter)
 	/* clear VLAN promisc flag so VFTA will be updated if necessary */
 	adapter->flags &= ~IGC_FLAG_VLAN_PROMISC;
 
+	igc_disable_all_tx_rings_hw(adapter);
 	igc_clean_all_tx_rings(adapter);
 	igc_clean_all_rx_rings(adapter);
 }
@@ -7124,18 +7152,6 @@ void igc_enable_rx_ring(struct igc_ring *ring)
 		igc_alloc_rx_buffers(ring, igc_desc_unused(ring));
 }
 
-static void igc_disable_tx_ring_hw(struct igc_ring *ring)
-{
-	struct igc_hw *hw = &ring->q_vector->adapter->hw;
-	u8 idx = ring->reg_idx;
-	u32 txdctl;
-
-	txdctl = rd32(IGC_TXDCTL(idx));
-	txdctl &= ~IGC_TXDCTL_QUEUE_ENABLE;
-	txdctl |= IGC_TXDCTL_SWFLUSH;
-	wr32(IGC_TXDCTL(idx), txdctl);
-}
-
 void igc_disable_tx_ring(struct igc_ring *ring)
 {
 	igc_disable_tx_ring_hw(ring);
-- 
2.39.2

[PATCH 5.15 073/155] netfilter: nft_set_rbtree: fix overlap expiration walk

[Greg Kroah-Hartman]

From: Florian Westphal <fw@strlen.de>

[ Upstream commit f718863aca469a109895cb855e6b81fff4827d71 ]

The lazy gc on insert that should remove timed-out entries fails to release
the other half of the interval, if any.

Can be reproduced with tests/shell/testcases/sets/0044interval_overlap_0
in nftables.git and kmemleak enabled kernel.

Second bug is the use of rbe_prev vs. prev pointer.
If rbe_prev() returns NULL after at least one iteration, rbe_prev points
to element that is not an end interval, hence it should not be removed.

Lastly, check the genmask of the end interval if this is active in the
current generation.

Fixes: c9e6978e2725 ("netfilter: nft_set_rbtree: Switch to node list walk for overlap detection")
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_set_rbtree.c | 20 ++++++++++++++------
 1 file changed, 14 insertions(+), 6 deletions(-)

diff --git a/net/netfilter/nft_set_rbtree.c b/net/netfilter/nft_set_rbtree.c
index 5c05c9b990fba..8d73fffd2d09d 100644
--- a/net/netfilter/nft_set_rbtree.c
+++ b/net/netfilter/nft_set_rbtree.c
@@ -217,29 +217,37 @@ static void *nft_rbtree_get(const struct net *net, const struct nft_set *set,
 
 static int nft_rbtree_gc_elem(const struct nft_set *__set,
 			      struct nft_rbtree *priv,
-			      struct nft_rbtree_elem *rbe)
+			      struct nft_rbtree_elem *rbe,
+			      u8 genmask)
 {
 	struct nft_set *set = (struct nft_set *)__set;
 	struct rb_node *prev = rb_prev(&rbe->node);
-	struct nft_rbtree_elem *rbe_prev = NULL;
+	struct nft_rbtree_elem *rbe_prev;
 	struct nft_set_gc_batch *gcb;
 
 	gcb = nft_set_gc_batch_check(set, NULL, GFP_ATOMIC);
 	if (!gcb)
 		return -ENOMEM;
 
-	/* search for expired end interval coming before this element. */
+	/* search for end interval coming before this element.
+	 * end intervals don't carry a timeout extension, they
+	 * are coupled with the interval start element.
+	 */
 	while (prev) {
 		rbe_prev = rb_entry(prev, struct nft_rbtree_elem, node);
-		if (nft_rbtree_interval_end(rbe_prev))
+		if (nft_rbtree_interval_end(rbe_prev) &&
+		    nft_set_elem_active(&rbe_prev->ext, genmask))
 			break;
 
 		prev = rb_prev(prev);
 	}
 
-	if (rbe_prev) {
+	if (prev) {
+		rbe_prev = rb_entry(prev, struct nft_rbtree_elem, node);
+
 		rb_erase(&rbe_prev->node, &priv->root);
 		atomic_dec(&set->nelems);
+		nft_set_gc_batch_add(gcb, rbe_prev);
 	}
 
 	rb_erase(&rbe->node, &priv->root);
@@ -321,7 +329,7 @@ static int __nft_rbtree_insert(const struct net *net, const struct nft_set *set,
 
 		/* perform garbage collection to avoid bogus overlap reports. */
 		if (nft_set_elem_expired(&rbe->ext)) {
-			err = nft_rbtree_gc_elem(set, priv, rbe);
+			err = nft_rbtree_gc_elem(set, priv, rbe, genmask);
 			if (err < 0)
 				return err;
 
-- 
2.39.2

[PATCH 5.15 074/155] netfilter: nf_tables: skip immediate deactivate in _PREPARE_ERROR

[Greg Kroah-Hartman]

From: Pablo Neira Ayuso <pablo@netfilter.org>

[ Upstream commit 0a771f7b266b02d262900c75f1e175c7fe76fec2 ]

On error when building the rule, the immediate expression unbinds the
chain, hence objects can be deactivated by the transaction records.

Otherwise, it is possible to trigger the following warning:

 WARNING: CPU: 3 PID: 915 at net/netfilter/nf_tables_api.c:2013 nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]
 CPU: 3 PID: 915 Comm: chain-bind-err- Not tainted 6.1.39 #1
 RIP: 0010:nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]

Fixes: 4bedf9eee016 ("netfilter: nf_tables: fix chain binding transaction logic")
Reported-by: Kevin Rich <kevinrich1337@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nft_immediate.c | 27 ++++++++++++++++++---------
 1 file changed, 18 insertions(+), 9 deletions(-)

diff --git a/net/netfilter/nft_immediate.c b/net/netfilter/nft_immediate.c
index 6b0efab4fad09..6bf1c852e8eaa 100644
--- a/net/netfilter/nft_immediate.c
+++ b/net/netfilter/nft_immediate.c
@@ -125,15 +125,27 @@ static void nft_immediate_activate(const struct nft_ctx *ctx,
 	return nft_data_hold(&priv->data, nft_dreg_to_type(priv->dreg));
 }
 
+static void nft_immediate_chain_deactivate(const struct nft_ctx *ctx,
+					   struct nft_chain *chain,
+					   enum nft_trans_phase phase)
+{
+	struct nft_ctx chain_ctx;
+	struct nft_rule *rule;
+
+	chain_ctx = *ctx;
+	chain_ctx.chain = chain;
+
+	list_for_each_entry(rule, &chain->rules, list)
+		nft_rule_expr_deactivate(&chain_ctx, rule, phase);
+}
+
 static void nft_immediate_deactivate(const struct nft_ctx *ctx,
 				     const struct nft_expr *expr,
 				     enum nft_trans_phase phase)
 {
 	const struct nft_immediate_expr *priv = nft_expr_priv(expr);
 	const struct nft_data *data = &priv->data;
-	struct nft_ctx chain_ctx;
 	struct nft_chain *chain;
-	struct nft_rule *rule;
 
 	if (priv->dreg == NFT_REG_VERDICT) {
 		switch (data->verdict.code) {
@@ -143,20 +155,17 @@ static void nft_immediate_deactivate(const struct nft_ctx *ctx,
 			if (!nft_chain_binding(chain))
 				break;
 
-			chain_ctx = *ctx;
-			chain_ctx.chain = chain;
-
-			list_for_each_entry(rule, &chain->rules, list)
-				nft_rule_expr_deactivate(&chain_ctx, rule, phase);
-
 			switch (phase) {
 			case NFT_TRANS_PREPARE_ERROR:
 				nf_tables_unbind_chain(ctx, chain);
-				fallthrough;
+				nft_deactivate_next(ctx->net, chain);
+				break;
 			case NFT_TRANS_PREPARE:
+				nft_immediate_chain_deactivate(ctx, chain, phase);
 				nft_deactivate_next(ctx->net, chain);
 				break;
 			default:
+				nft_immediate_chain_deactivate(ctx, chain, phase);
 				nft_chain_del(chain);
 				chain->bound = false;
 				chain->table->use--;
-- 
2.39.2

[PATCH 5.15 075/155] netfilter: nf_tables: disallow rule addition to bound chain via NFTA_RULE_CHAIN_ID

[Greg Kroah-Hartman]

From: Pablo Neira Ayuso <pablo@netfilter.org>

[ Upstream commit 0ebc1064e4874d5987722a2ddbc18f94aa53b211 ]

Bail out with EOPNOTSUPP when adding rule to bound chain via
NFTA_RULE_CHAIN_ID. The following warning splat is shown when
adding a rule to a deleted bound chain:

 WARNING: CPU: 2 PID: 13692 at net/netfilter/nf_tables_api.c:2013 nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]
 CPU: 2 PID: 13692 Comm: chain-bound-rul Not tainted 6.1.39 #1
 RIP: 0010:nf_tables_chain_destroy+0x1f7/0x210 [nf_tables]

Fixes: d0e2c7de92c7 ("netfilter: nf_tables: add NFT_CHAIN_BINDING")
Reported-by: Kevin Rich <kevinrich1337@gmail.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/netfilter/nf_tables_api.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/net/netfilter/nf_tables_api.c b/net/netfilter/nf_tables_api.c
index e0e675313d8e1..ce9f962380b7b 100644
--- a/net/netfilter/nf_tables_api.c
+++ b/net/netfilter/nf_tables_api.c
@@ -3529,8 +3529,6 @@ static int nf_tables_newrule(struct sk_buff *skb, const struct nfnl_info *info,
 			NL_SET_BAD_ATTR(extack, nla[NFTA_RULE_CHAIN]);
 			return PTR_ERR(chain);
 		}
-		if (nft_chain_is_bound(chain))
-			return -EOPNOTSUPP;
 
 	} else if (nla[NFTA_RULE_CHAIN_ID]) {
 		chain = nft_chain_lookup_byid(net, table, nla[NFTA_RULE_CHAIN_ID],
@@ -3543,6 +3541,9 @@ static int nf_tables_newrule(struct sk_buff *skb, const struct nfnl_info *info,
 		return -EINVAL;
 	}
 
+	if (nft_chain_is_bound(chain))
+		return -EOPNOTSUPP;
+
 	if (nla[NFTA_RULE_HANDLE]) {
 		handle = be64_to_cpu(nla_get_be64(nla[NFTA_RULE_HANDLE]));
 		rule = __nft_rule_lookup(chain, handle);
-- 
2.39.2

[PATCH 5.15 076/155] net/sched: mqprio: refactor nlattr parsing to a separate function

[Greg Kroah-Hartman]

From: Vladimir Oltean <vladimir.oltean@nxp.com>

[ Upstream commit feb2cf3dcfb930aec2ca65c66d1365543d5ba943 ]

mqprio_init() is quite large and unwieldy to add more code to.
Split the netlink attribute parsing to a dedicated function.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Stable-dep-of: 6c58c8816abb ("net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_mqprio.c | 114 +++++++++++++++++++++++------------------
 1 file changed, 63 insertions(+), 51 deletions(-)

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index 50e15add6068f..a5df5604e0150 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -130,6 +130,67 @@ static int parse_attr(struct nlattr *tb[], int maxtype, struct nlattr *nla,
 	return 0;
 }
 
+static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
+			       struct nlattr *opt)
+{
+	struct mqprio_sched *priv = qdisc_priv(sch);
+	struct nlattr *tb[TCA_MQPRIO_MAX + 1];
+	struct nlattr *attr;
+	int i, rem, err;
+
+	err = parse_attr(tb, TCA_MQPRIO_MAX, opt, mqprio_policy,
+			 sizeof(*qopt));
+	if (err < 0)
+		return err;
+
+	if (!qopt->hw)
+		return -EINVAL;
+
+	if (tb[TCA_MQPRIO_MODE]) {
+		priv->flags |= TC_MQPRIO_F_MODE;
+		priv->mode = *(u16 *)nla_data(tb[TCA_MQPRIO_MODE]);
+	}
+
+	if (tb[TCA_MQPRIO_SHAPER]) {
+		priv->flags |= TC_MQPRIO_F_SHAPER;
+		priv->shaper = *(u16 *)nla_data(tb[TCA_MQPRIO_SHAPER]);
+	}
+
+	if (tb[TCA_MQPRIO_MIN_RATE64]) {
+		if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE)
+			return -EINVAL;
+		i = 0;
+		nla_for_each_nested(attr, tb[TCA_MQPRIO_MIN_RATE64],
+				    rem) {
+			if (nla_type(attr) != TCA_MQPRIO_MIN_RATE64)
+				return -EINVAL;
+			if (i >= qopt->num_tc)
+				break;
+			priv->min_rate[i] = *(u64 *)nla_data(attr);
+			i++;
+		}
+		priv->flags |= TC_MQPRIO_F_MIN_RATE;
+	}
+
+	if (tb[TCA_MQPRIO_MAX_RATE64]) {
+		if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE)
+			return -EINVAL;
+		i = 0;
+		nla_for_each_nested(attr, tb[TCA_MQPRIO_MAX_RATE64],
+				    rem) {
+			if (nla_type(attr) != TCA_MQPRIO_MAX_RATE64)
+				return -EINVAL;
+			if (i >= qopt->num_tc)
+				break;
+			priv->max_rate[i] = *(u64 *)nla_data(attr);
+			i++;
+		}
+		priv->flags |= TC_MQPRIO_F_MAX_RATE;
+	}
+
+	return 0;
+}
+
 static int mqprio_init(struct Qdisc *sch, struct nlattr *opt,
 		       struct netlink_ext_ack *extack)
 {
@@ -139,9 +200,6 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt,
 	struct Qdisc *qdisc;
 	int i, err = -EOPNOTSUPP;
 	struct tc_mqprio_qopt *qopt = NULL;
-	struct nlattr *tb[TCA_MQPRIO_MAX + 1];
-	struct nlattr *attr;
-	int rem;
 	int len;
 
 	BUILD_BUG_ON(TC_MAX_QUEUE != TC_QOPT_MAX_QUEUE);
@@ -166,55 +224,9 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt,
 
 	len = nla_len(opt) - NLA_ALIGN(sizeof(*qopt));
 	if (len > 0) {
-		err = parse_attr(tb, TCA_MQPRIO_MAX, opt, mqprio_policy,
-				 sizeof(*qopt));
-		if (err < 0)
+		err = mqprio_parse_nlattr(sch, qopt, opt);
+		if (err)
 			return err;
-
-		if (!qopt->hw)
-			return -EINVAL;
-
-		if (tb[TCA_MQPRIO_MODE]) {
-			priv->flags |= TC_MQPRIO_F_MODE;
-			priv->mode = *(u16 *)nla_data(tb[TCA_MQPRIO_MODE]);
-		}
-
-		if (tb[TCA_MQPRIO_SHAPER]) {
-			priv->flags |= TC_MQPRIO_F_SHAPER;
-			priv->shaper = *(u16 *)nla_data(tb[TCA_MQPRIO_SHAPER]);
-		}
-
-		if (tb[TCA_MQPRIO_MIN_RATE64]) {
-			if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE)
-				return -EINVAL;
-			i = 0;
-			nla_for_each_nested(attr, tb[TCA_MQPRIO_MIN_RATE64],
-					    rem) {
-				if (nla_type(attr) != TCA_MQPRIO_MIN_RATE64)
-					return -EINVAL;
-				if (i >= qopt->num_tc)
-					break;
-				priv->min_rate[i] = *(u64 *)nla_data(attr);
-				i++;
-			}
-			priv->flags |= TC_MQPRIO_F_MIN_RATE;
-		}
-
-		if (tb[TCA_MQPRIO_MAX_RATE64]) {
-			if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE)
-				return -EINVAL;
-			i = 0;
-			nla_for_each_nested(attr, tb[TCA_MQPRIO_MAX_RATE64],
-					    rem) {
-				if (nla_type(attr) != TCA_MQPRIO_MAX_RATE64)
-					return -EINVAL;
-				if (i >= qopt->num_tc)
-					break;
-				priv->max_rate[i] = *(u64 *)nla_data(attr);
-				i++;
-			}
-			priv->flags |= TC_MQPRIO_F_MAX_RATE;
-		}
 	}
 
 	/* pre-allocate qdisc, attachment can't fail */
-- 
2.39.2

[PATCH 5.15 077/155] net/sched: mqprio: add extack to mqprio_parse_nlattr()

[Greg Kroah-Hartman]

From: Vladimir Oltean <vladimir.oltean@nxp.com>

[ Upstream commit 57f21bf85400abadac0cb2a4db5de1d663f8863f ]

Netlink attribute parsing in mqprio is a minesweeper game, with many
options having the possibility of being passed incorrectly and the user
being none the wiser.

Try to make errors less sour by giving user space some information
regarding what went wrong.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Ferenc Fejes <fejes@inf.elte.hu>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Acked-by: Jamal Hadi Salim <jhs@mojatatu.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Stable-dep-of: 6c58c8816abb ("net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_mqprio.c | 30 +++++++++++++++++++++++-------
 1 file changed, 23 insertions(+), 7 deletions(-)

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index a5df5604e0150..4ec222a5530d1 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -131,7 +131,8 @@ static int parse_attr(struct nlattr *tb[], int maxtype, struct nlattr *nla,
 }
 
 static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
-			       struct nlattr *opt)
+			       struct nlattr *opt,
+			       struct netlink_ext_ack *extack)
 {
 	struct mqprio_sched *priv = qdisc_priv(sch);
 	struct nlattr *tb[TCA_MQPRIO_MAX + 1];
@@ -143,8 +144,11 @@ static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
 	if (err < 0)
 		return err;
 
-	if (!qopt->hw)
+	if (!qopt->hw) {
+		NL_SET_ERR_MSG(extack,
+			       "mqprio TCA_OPTIONS can only contain netlink attributes in hardware mode");
 		return -EINVAL;
+	}
 
 	if (tb[TCA_MQPRIO_MODE]) {
 		priv->flags |= TC_MQPRIO_F_MODE;
@@ -157,13 +161,19 @@ static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
 	}
 
 	if (tb[TCA_MQPRIO_MIN_RATE64]) {
-		if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE)
+		if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE) {
+			NL_SET_ERR_MSG_ATTR(extack, tb[TCA_MQPRIO_MIN_RATE64],
+					    "min_rate accepted only when shaper is in bw_rlimit mode");
 			return -EINVAL;
+		}
 		i = 0;
 		nla_for_each_nested(attr, tb[TCA_MQPRIO_MIN_RATE64],
 				    rem) {
-			if (nla_type(attr) != TCA_MQPRIO_MIN_RATE64)
+			if (nla_type(attr) != TCA_MQPRIO_MIN_RATE64) {
+				NL_SET_ERR_MSG_ATTR(extack, attr,
+						    "Attribute type expected to be TCA_MQPRIO_MIN_RATE64");
 				return -EINVAL;
+			}
 			if (i >= qopt->num_tc)
 				break;
 			priv->min_rate[i] = *(u64 *)nla_data(attr);
@@ -173,13 +183,19 @@ static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
 	}
 
 	if (tb[TCA_MQPRIO_MAX_RATE64]) {
-		if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE)
+		if (priv->shaper != TC_MQPRIO_SHAPER_BW_RATE) {
+			NL_SET_ERR_MSG_ATTR(extack, tb[TCA_MQPRIO_MAX_RATE64],
+					    "max_rate accepted only when shaper is in bw_rlimit mode");
 			return -EINVAL;
+		}
 		i = 0;
 		nla_for_each_nested(attr, tb[TCA_MQPRIO_MAX_RATE64],
 				    rem) {
-			if (nla_type(attr) != TCA_MQPRIO_MAX_RATE64)
+			if (nla_type(attr) != TCA_MQPRIO_MAX_RATE64) {
+				NL_SET_ERR_MSG_ATTR(extack, attr,
+						    "Attribute type expected to be TCA_MQPRIO_MAX_RATE64");
 				return -EINVAL;
+			}
 			if (i >= qopt->num_tc)
 				break;
 			priv->max_rate[i] = *(u64 *)nla_data(attr);
@@ -224,7 +240,7 @@ static int mqprio_init(struct Qdisc *sch, struct nlattr *opt,
 
 	len = nla_len(opt) - NLA_ALIGN(sizeof(*qopt));
 	if (len > 0) {
-		err = mqprio_parse_nlattr(sch, qopt, opt);
+		err = mqprio_parse_nlattr(sch, qopt, opt, extack);
 		if (err)
 			return err;
 	}
-- 
2.39.2

[PATCH 5.15 078/155] net/sched: mqprio: Add length check for TCA_MQPRIO_{MAX/MIN}_RATE64

[Greg Kroah-Hartman]

From: Lin Ma <linma@zju.edu.cn>

[ Upstream commit 6c58c8816abb7b93b21fa3b1d0c1726402e5e568 ]

The nla_for_each_nested parsing in function mqprio_parse_nlattr() does
not check the length of the nested attribute. This can lead to an
out-of-attribute read and allow a malformed nlattr (e.g., length 0) to
be viewed as 8 byte integer and passed to priv->max_rate/min_rate.

This patch adds the check based on nla_len() when check the nla_type(),
which ensures that the length of these two attribute must equals
sizeof(u64).

Fixes: 4e8b86c06269 ("mqprio: Introduce new hardware offload mode and shaper in mqprio")
Reviewed-by: Victor Nogueira <victor@mojatatu.com>
Signed-off-by: Lin Ma <linma@zju.edu.cn>
Link: https://lore.kernel.org/r/20230725024227.426561-1-linma@zju.edu.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/sched/sch_mqprio.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/net/sched/sch_mqprio.c b/net/sched/sch_mqprio.c
index 4ec222a5530d1..56d3dc5e95c7c 100644
--- a/net/sched/sch_mqprio.c
+++ b/net/sched/sch_mqprio.c
@@ -174,6 +174,13 @@ static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
 						    "Attribute type expected to be TCA_MQPRIO_MIN_RATE64");
 				return -EINVAL;
 			}
+
+			if (nla_len(attr) != sizeof(u64)) {
+				NL_SET_ERR_MSG_ATTR(extack, attr,
+						    "Attribute TCA_MQPRIO_MIN_RATE64 expected to have 8 bytes length");
+				return -EINVAL;
+			}
+
 			if (i >= qopt->num_tc)
 				break;
 			priv->min_rate[i] = *(u64 *)nla_data(attr);
@@ -196,6 +203,13 @@ static int mqprio_parse_nlattr(struct Qdisc *sch, struct tc_mqprio_qopt *qopt,
 						    "Attribute type expected to be TCA_MQPRIO_MAX_RATE64");
 				return -EINVAL;
 			}
+
+			if (nla_len(attr) != sizeof(u64)) {
+				NL_SET_ERR_MSG_ATTR(extack, attr,
+						    "Attribute TCA_MQPRIO_MAX_RATE64 expected to have 8 bytes length");
+				return -EINVAL;
+			}
+
 			if (i >= qopt->num_tc)
 				break;
 			priv->max_rate[i] = *(u64 *)nla_data(attr);
-- 
2.39.2

[PATCH 5.15 079/155] benet: fix return value check in be_lancer_xmit_workarounds()

[Greg Kroah-Hartman]

From: Yuanjun Gong <ruc_gongyuanjun@163.com>

[ Upstream commit 5c85f7065718a949902b238a6abd8fc907c5d3e0 ]

in be_lancer_xmit_workarounds(), it should go to label 'tx_drop'
if an unexpected value is returned by pskb_trim().

Fixes: 93040ae5cc8d ("be2net: Fix to trim skb for padded vlan packets to workaround an ASIC Bug")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Link: https://lore.kernel.org/r/20230725032726.15002-1-ruc_gongyuanjun@163.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/emulex/benet/be_main.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/emulex/benet/be_main.c b/drivers/net/ethernet/emulex/benet/be_main.c
index 3ccb955eb6f23..c14a3dbd075cc 100644
--- a/drivers/net/ethernet/emulex/benet/be_main.c
+++ b/drivers/net/ethernet/emulex/benet/be_main.c
@@ -1139,7 +1139,8 @@ static struct sk_buff *be_lancer_xmit_workarounds(struct be_adapter *adapter,
 	    (lancer_chip(adapter) || BE3_chip(adapter) ||
 	     skb_vlan_tag_present(skb)) && is_ipv4_pkt(skb)) {
 		ip = (struct iphdr *)ip_hdr(skb);
-		pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
+		if (unlikely(pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len))))
+			goto tx_drop;
 	}
 
 	/* If vlan tag is already inlined in the packet, skip HW VLAN
-- 
2.39.2

[PATCH 5.15 080/155] tipc: check return value of pskb_trim()

[Greg Kroah-Hartman]

From: Yuanjun Gong <ruc_gongyuanjun@163.com>

[ Upstream commit e46e06ffc6d667a89b979701288e2264f45e6a7b ]

goto free_skb if an unexpected result is returned by pskb_tirm()
in tipc_crypto_rcv_complete().

Fixes: fc1b6d6de220 ("tipc: introduce TIPC encryption & authentication")
Signed-off-by: Yuanjun Gong <ruc_gongyuanjun@163.com>
Reviewed-by: Tung Nguyen <tung.q.nguyen@dektech.com.au>
Link: https://lore.kernel.org/r/20230725064810.5820-1-ruc_gongyuanjun@163.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/crypto.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/net/tipc/crypto.c b/net/tipc/crypto.c
index 4243d2ab8adfb..32447e8d94ac9 100644
--- a/net/tipc/crypto.c
+++ b/net/tipc/crypto.c
@@ -1971,7 +1971,8 @@ static void tipc_crypto_rcv_complete(struct net *net, struct tipc_aead *aead,
 
 	skb_reset_network_header(*skb);
 	skb_pull(*skb, tipc_ehdr_size(ehdr));
-	pskb_trim(*skb, (*skb)->len - aead->authsize);
+	if (pskb_trim(*skb, (*skb)->len - aead->authsize))
+		goto free_skb;
 
 	/* Validate TIPCv2 message */
 	if (unlikely(!tipc_msg_validate(skb))) {
-- 
2.39.2

[PATCH 5.15 081/155] tipc: stop tipc crypto on failure in tipc_node_create

[Greg Kroah-Hartman]

From: Fedor Pchelkin <pchelkin@ispras.ru>

[ Upstream commit de52e17326c3e9a719c9ead4adb03467b8fae0ef ]

If tipc_link_bc_create() fails inside tipc_node_create() for a newly
allocated tipc node then we should stop its tipc crypto and free the
resources allocated with a call to tipc_crypto_start().

As the node ref is initialized to one to that point, just put the ref on
tipc_link_bc_create() error case that would lead to tipc_node_free() be
eventually executed and properly clean the node and its crypto resources.

Found by Linux Verification Center (linuxtesting.org).

Fixes: cb8092d70a6f ("tipc: move bc link creation back to tipc_node_create")
Suggested-by: Xin Long <lucien.xin@gmail.com>
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Reviewed-by: Xin Long <lucien.xin@gmail.com>
Link: https://lore.kernel.org/r/20230725214628.25246-1-pchelkin@ispras.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/tipc/node.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/net/tipc/node.c b/net/tipc/node.c
index 5e000fde80676..a9c5b6594889b 100644
--- a/net/tipc/node.c
+++ b/net/tipc/node.c
@@ -583,7 +583,7 @@ struct tipc_node *tipc_node_create(struct net *net, u32 addr, u8 *peer_id,
 				 n->capabilities, &n->bc_entry.inputq1,
 				 &n->bc_entry.namedq, snd_l, &n->bc_entry.link)) {
 		pr_warn("Broadcast rcv link creation failed, no memory\n");
-		kfree(n);
+		tipc_node_put(n);
 		n = NULL;
 		goto exit;
 	}
-- 
2.39.2

[PATCH 5.15 082/155] RDMA/mlx4: Make check for invalid flags stricter

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpenter@linaro.org>

[ Upstream commit d64b1ee12a168030fbb3e0aebf7bce49e9a07589 ]

This code is trying to ensure that only the flags specified in the list
are allowed.  The problem is that ucmd->rx_hash_fields_mask is a u64 and
the flags are an enum which is treated as a u32 in this context.  That
means the test doesn't check whether the highest 32 bits are zero.

Fixes: 4d02ebd9bbbd ("IB/mlx4: Fix RSS hash fields restrictions")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/233ed975-982d-422a-b498-410f71d8a101@moroto.mountain
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mlx4/qp.c | 18 +++++++++---------
 1 file changed, 9 insertions(+), 9 deletions(-)

diff --git a/drivers/infiniband/hw/mlx4/qp.c b/drivers/infiniband/hw/mlx4/qp.c
index ec545b8858cc0..43b2aad845917 100644
--- a/drivers/infiniband/hw/mlx4/qp.c
+++ b/drivers/infiniband/hw/mlx4/qp.c
@@ -530,15 +530,15 @@ static int set_qp_rss(struct mlx4_ib_dev *dev, struct mlx4_ib_rss *rss_ctx,
 		return (-EOPNOTSUPP);
 	}
 
-	if (ucmd->rx_hash_fields_mask & ~(MLX4_IB_RX_HASH_SRC_IPV4	|
-					  MLX4_IB_RX_HASH_DST_IPV4	|
-					  MLX4_IB_RX_HASH_SRC_IPV6	|
-					  MLX4_IB_RX_HASH_DST_IPV6	|
-					  MLX4_IB_RX_HASH_SRC_PORT_TCP	|
-					  MLX4_IB_RX_HASH_DST_PORT_TCP	|
-					  MLX4_IB_RX_HASH_SRC_PORT_UDP	|
-					  MLX4_IB_RX_HASH_DST_PORT_UDP  |
-					  MLX4_IB_RX_HASH_INNER)) {
+	if (ucmd->rx_hash_fields_mask & ~(u64)(MLX4_IB_RX_HASH_SRC_IPV4	|
+					       MLX4_IB_RX_HASH_DST_IPV4	|
+					       MLX4_IB_RX_HASH_SRC_IPV6	|
+					       MLX4_IB_RX_HASH_DST_IPV6	|
+					       MLX4_IB_RX_HASH_SRC_PORT_TCP |
+					       MLX4_IB_RX_HASH_DST_PORT_TCP |
+					       MLX4_IB_RX_HASH_SRC_PORT_UDP |
+					       MLX4_IB_RX_HASH_DST_PORT_UDP |
+					       MLX4_IB_RX_HASH_INNER)) {
 		pr_debug("RX Hash fields_mask has unsupported mask (0x%llx)\n",
 			 ucmd->rx_hash_fields_mask);
 		return (-EOPNOTSUPP);
-- 
2.40.1

[PATCH 5.15 083/155] drm/msm/dpu: drop enum dpu_core_perf_data_bus_id

[Greg Kroah-Hartman]

From: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>

[ Upstream commit e8383f5cf1b3573ce140a80bfbfd809278ab16d6 ]

Drop the leftover of bus-client -> interconnect conversion, the enum
dpu_core_perf_data_bus_id.

Fixes: cb88482e2570 ("drm/msm/dpu: clean up references of DPU custom bus scaling")
Reviewed-by: Konrad Dybcio <konrad.dybcio@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Patchwork: https://patchwork.freedesktop.org/patch/546048/
Link: https://lore.kernel.org/r/20230707193942.3806526-2-dmitry.baryshkov@linaro.org
Signed-off-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h | 13 -------------
 1 file changed, 13 deletions(-)

diff --git a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
index cf4b9b5964c6c..cd6c3518ba021 100644
--- a/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
+++ b/drivers/gpu/drm/msm/disp/dpu1/dpu_core_perf.h
@@ -14,19 +14,6 @@
 
 #define	DPU_PERF_DEFAULT_MAX_CORE_CLK_RATE	412500000
 
-/**
- * enum dpu_core_perf_data_bus_id - data bus identifier
- * @DPU_CORE_PERF_DATA_BUS_ID_MNOC: DPU/MNOC data bus
- * @DPU_CORE_PERF_DATA_BUS_ID_LLCC: MNOC/LLCC data bus
- * @DPU_CORE_PERF_DATA_BUS_ID_EBI: LLCC/EBI data bus
- */
-enum dpu_core_perf_data_bus_id {
-	DPU_CORE_PERF_DATA_BUS_ID_MNOC,
-	DPU_CORE_PERF_DATA_BUS_ID_LLCC,
-	DPU_CORE_PERF_DATA_BUS_ID_EBI,
-	DPU_CORE_PERF_DATA_BUS_ID_MAX,
-};
-
 /**
  * struct dpu_core_perf_params - definition of performance parameters
  * @max_per_pipe_ib: maximum instantaneous bandwidth request
-- 
2.40.1

[PATCH 5.15 084/155] drm/msm/adreno: Fix snapshot BINDLESS_DATA size

[Greg Kroah-Hartman]

From: Rob Clark <robdclark@chromium.org>

[ Upstream commit bd846ceee9c478d0397428f02696602ba5eb264a ]

The incorrect size was causing "CP | AHB bus error" when snapshotting
the GPU state on a6xx gen4 (a660 family).

Closes: https://gitlab.freedesktop.org/drm/msm/-/issues/26
Signed-off-by: Rob Clark <robdclark@chromium.org>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Fixes: 1707add81551 ("drm/msm/a6xx: Add a6xx gpu state")
Patchwork: https://patchwork.freedesktop.org/patch/546763/
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h
index 2fb58b7098e4b..3bd2065a9d30e 100644
--- a/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h
+++ b/drivers/gpu/drm/msm/adreno/a6xx_gpu_state.h
@@ -200,7 +200,7 @@ static const struct a6xx_shader_block {
 	SHADER(A6XX_SP_LB_3_DATA, 0x800),
 	SHADER(A6XX_SP_LB_4_DATA, 0x800),
 	SHADER(A6XX_SP_LB_5_DATA, 0x200),
-	SHADER(A6XX_SP_CB_BINDLESS_DATA, 0x2000),
+	SHADER(A6XX_SP_CB_BINDLESS_DATA, 0x800),
 	SHADER(A6XX_SP_CB_LEGACY_DATA, 0x280),
 	SHADER(A6XX_SP_UAV_DATA, 0x80),
 	SHADER(A6XX_SP_INST_TAG, 0x80),
-- 
2.40.1

[PATCH 5.15 085/155] RDMA/irdma: Add missing read barriers

[Greg Kroah-Hartman]

From: Shiraz Saleem <shiraz.saleem@intel.com>

[ Upstream commit 4984eb51453ff7eddee9e5ce816145be39c0ec5c ]

On code inspection, there are many instances in the driver where
CEQE and AEQE fields written to by HW are read without guaranteeing
that the polarity bit has been read and checked first.

Add a read barrier to avoid reordering of loads on the CEQE/AEQE fields
prior to checking the polarity bit.

Fixes: 3f49d6842569 ("RDMA/irdma: Implement HW Admin Queue OPs")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230711175253.1289-2-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/irdma/ctrl.c | 9 ++++++++-
 drivers/infiniband/hw/irdma/puda.c | 6 ++++++
 drivers/infiniband/hw/irdma/uk.c   | 3 +++
 3 files changed, 17 insertions(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/irdma/ctrl.c b/drivers/infiniband/hw/irdma/ctrl.c
index 1ac7067e21be1..ab195ae089cfd 100644
--- a/drivers/infiniband/hw/irdma/ctrl.c
+++ b/drivers/infiniband/hw/irdma/ctrl.c
@@ -3395,6 +3395,9 @@ enum irdma_status_code irdma_sc_ccq_get_cqe_info(struct irdma_sc_cq *ccq,
 	if (polarity != ccq->cq_uk.polarity)
 		return IRDMA_ERR_Q_EMPTY;
 
+	/* Ensure CEQE contents are read after valid bit is checked */
+	dma_rmb();
+
 	get_64bit_val(cqe, 8, &qp_ctx);
 	cqp = (struct irdma_sc_cqp *)(unsigned long)qp_ctx;
 	info->error = (bool)FIELD_GET(IRDMA_CQ_ERROR, temp);
@@ -4046,13 +4049,17 @@ enum irdma_status_code irdma_sc_get_next_aeqe(struct irdma_sc_aeq *aeq,
 	u8 polarity;
 
 	aeqe = IRDMA_GET_CURRENT_AEQ_ELEM(aeq);
-	get_64bit_val(aeqe, 0, &compl_ctx);
 	get_64bit_val(aeqe, 8, &temp);
 	polarity = (u8)FIELD_GET(IRDMA_AEQE_VALID, temp);
 
 	if (aeq->polarity != polarity)
 		return IRDMA_ERR_Q_EMPTY;
 
+	/* Ensure AEQE contents are read after valid bit is checked */
+	dma_rmb();
+
+	get_64bit_val(aeqe, 0, &compl_ctx);
+
 	print_hex_dump_debug("WQE: AEQ_ENTRY WQE", DUMP_PREFIX_OFFSET, 16, 8,
 			     aeqe, 16, false);
 
diff --git a/drivers/infiniband/hw/irdma/puda.c b/drivers/infiniband/hw/irdma/puda.c
index 58e7d875643b8..197eba5eb78fa 100644
--- a/drivers/infiniband/hw/irdma/puda.c
+++ b/drivers/infiniband/hw/irdma/puda.c
@@ -235,6 +235,9 @@ irdma_puda_poll_info(struct irdma_sc_cq *cq, struct irdma_puda_cmpl_info *info)
 	if (valid_bit != cq_uk->polarity)
 		return IRDMA_ERR_Q_EMPTY;
 
+	/* Ensure CQE contents are read after valid bit is checked */
+	dma_rmb();
+
 	if (cq->dev->hw_attrs.uk_attrs.hw_rev >= IRDMA_GEN_2)
 		ext_valid = (bool)FIELD_GET(IRDMA_CQ_EXTCQE, qword3);
 
@@ -248,6 +251,9 @@ irdma_puda_poll_info(struct irdma_sc_cq *cq, struct irdma_puda_cmpl_info *info)
 		if (polarity != cq_uk->polarity)
 			return IRDMA_ERR_Q_EMPTY;
 
+		/* Ensure ext CQE contents are read after ext valid bit is checked */
+		dma_rmb();
+
 		IRDMA_RING_MOVE_HEAD_NOCHECK(cq_uk->cq_ring);
 		if (!IRDMA_RING_CURRENT_HEAD(cq_uk->cq_ring))
 			cq_uk->polarity = !cq_uk->polarity;
diff --git a/drivers/infiniband/hw/irdma/uk.c b/drivers/infiniband/hw/irdma/uk.c
index a348f0c010ab3..4b00a9adbe3a5 100644
--- a/drivers/infiniband/hw/irdma/uk.c
+++ b/drivers/infiniband/hw/irdma/uk.c
@@ -1549,6 +1549,9 @@ void irdma_uk_clean_cq(void *q, struct irdma_cq_uk *cq)
 		if (polarity != temp)
 			break;
 
+		/* Ensure CQE contents are read after valid bit is checked */
+		dma_rmb();
+
 		get_64bit_val(cqe, 8, &comp_ctx);
 		if ((void *)(unsigned long)comp_ctx == q)
 			set_64bit_val(cqe, 8, 0);
-- 
2.40.1

[PATCH 5.15 086/155] RDMA/irdma: Fix data race on CQP completion stats

[Greg Kroah-Hartman]

From: Shiraz Saleem <shiraz.saleem@intel.com>

[ Upstream commit f2c3037811381f9149243828c7eb9a1631df9f9c ]

CQP completion statistics is read lockesly in irdma_wait_event and
irdma_check_cqp_progress while it can be updated in the completion
thread irdma_sc_ccq_get_cqe_info on another CPU as KCSAN reports.

Make completion statistics an atomic variable to reflect coherent updates
to it. This will also avoid load/store tearing logic bug potentially
possible by compiler optimizations.

[77346.170861] BUG: KCSAN: data-race in irdma_handle_cqp_op [irdma] / irdma_sc_ccq_get_cqe_info [irdma]

[77346.171383] write to 0xffff8a3250b108e0 of 8 bytes by task 9544 on cpu 4:
[77346.171483]  irdma_sc_ccq_get_cqe_info+0x27a/0x370 [irdma]
[77346.171658]  irdma_cqp_ce_handler+0x164/0x270 [irdma]
[77346.171835]  cqp_compl_worker+0x1b/0x20 [irdma]
[77346.172009]  process_one_work+0x4d1/0xa40
[77346.172024]  worker_thread+0x319/0x700
[77346.172037]  kthread+0x180/0x1b0
[77346.172054]  ret_from_fork+0x22/0x30

[77346.172136] read to 0xffff8a3250b108e0 of 8 bytes by task 9838 on cpu 2:
[77346.172234]  irdma_handle_cqp_op+0xf4/0x4b0 [irdma]
[77346.172413]  irdma_cqp_aeq_cmd+0x75/0xa0 [irdma]
[77346.172592]  irdma_create_aeq+0x390/0x45a [irdma]
[77346.172769]  irdma_rt_init_hw.cold+0x212/0x85d [irdma]
[77346.172944]  irdma_probe+0x54f/0x620 [irdma]
[77346.173122]  auxiliary_bus_probe+0x66/0xa0
[77346.173137]  really_probe+0x140/0x540
[77346.173154]  __driver_probe_device+0xc7/0x220
[77346.173173]  driver_probe_device+0x5f/0x140
[77346.173190]  __driver_attach+0xf0/0x2c0
[77346.173208]  bus_for_each_dev+0xa8/0xf0
[77346.173225]  driver_attach+0x29/0x30
[77346.173240]  bus_add_driver+0x29c/0x2f0
[77346.173255]  driver_register+0x10f/0x1a0
[77346.173272]  __auxiliary_driver_register+0xbc/0x140
[77346.173287]  irdma_init_module+0x55/0x1000 [irdma]
[77346.173460]  do_one_initcall+0x7d/0x410
[77346.173475]  do_init_module+0x81/0x2c0
[77346.173491]  load_module+0x1232/0x12c0
[77346.173506]  __do_sys_finit_module+0x101/0x180
[77346.173522]  __x64_sys_finit_module+0x3c/0x50
[77346.173538]  do_syscall_64+0x39/0x90
[77346.173553]  entry_SYSCALL_64_after_hwframe+0x63/0xcd

[77346.173634] value changed: 0x0000000000000094 -> 0x0000000000000095

Fixes: 915cc7ac0f8e ("RDMA/irdma: Add miscellaneous utility definitions")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230711175253.1289-3-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/irdma/ctrl.c  | 22 +++++++-------
 drivers/infiniband/hw/irdma/defs.h  | 46 ++++++++++++++---------------
 drivers/infiniband/hw/irdma/type.h  |  2 ++
 drivers/infiniband/hw/irdma/utils.c |  2 +-
 4 files changed, 36 insertions(+), 36 deletions(-)

diff --git a/drivers/infiniband/hw/irdma/ctrl.c b/drivers/infiniband/hw/irdma/ctrl.c
index ab195ae089cfd..ad14c2404e94c 100644
--- a/drivers/infiniband/hw/irdma/ctrl.c
+++ b/drivers/infiniband/hw/irdma/ctrl.c
@@ -2741,13 +2741,13 @@ irdma_sc_cq_modify(struct irdma_sc_cq *cq, struct irdma_modify_cq_info *info,
  */
 void irdma_check_cqp_progress(struct irdma_cqp_timeout *timeout, struct irdma_sc_dev *dev)
 {
-	if (timeout->compl_cqp_cmds != dev->cqp_cmd_stats[IRDMA_OP_CMPL_CMDS]) {
-		timeout->compl_cqp_cmds = dev->cqp_cmd_stats[IRDMA_OP_CMPL_CMDS];
+	u64 completed_ops = atomic64_read(&dev->cqp->completed_ops);
+
+	if (timeout->compl_cqp_cmds != completed_ops) {
+		timeout->compl_cqp_cmds = completed_ops;
 		timeout->count = 0;
-	} else {
-		if (dev->cqp_cmd_stats[IRDMA_OP_REQ_CMDS] !=
-		    timeout->compl_cqp_cmds)
-			timeout->count++;
+	} else if (timeout->compl_cqp_cmds != dev->cqp->requested_ops) {
+		timeout->count++;
 	}
 }
 
@@ -2790,7 +2790,7 @@ static enum irdma_status_code irdma_cqp_poll_registers(struct irdma_sc_cqp *cqp,
 		if (newtail != tail) {
 			/* SUCCESS */
 			IRDMA_RING_MOVE_TAIL(cqp->sq_ring);
-			cqp->dev->cqp_cmd_stats[IRDMA_OP_CMPL_CMDS]++;
+			atomic64_inc(&cqp->completed_ops);
 			return 0;
 		}
 		udelay(cqp->dev->hw_attrs.max_sleep_count);
@@ -3152,8 +3152,8 @@ enum irdma_status_code irdma_sc_cqp_init(struct irdma_sc_cqp *cqp,
 	info->dev->cqp = cqp;
 
 	IRDMA_RING_INIT(cqp->sq_ring, cqp->sq_size);
-	cqp->dev->cqp_cmd_stats[IRDMA_OP_REQ_CMDS] = 0;
-	cqp->dev->cqp_cmd_stats[IRDMA_OP_CMPL_CMDS] = 0;
+	cqp->requested_ops = 0;
+	atomic64_set(&cqp->completed_ops, 0);
 	/* for the cqp commands backlog. */
 	INIT_LIST_HEAD(&cqp->dev->cqp_cmd_head);
 
@@ -3306,7 +3306,7 @@ __le64 *irdma_sc_cqp_get_next_send_wqe_idx(struct irdma_sc_cqp *cqp, u64 scratch
 	if (ret_code)
 		return NULL;
 
-	cqp->dev->cqp_cmd_stats[IRDMA_OP_REQ_CMDS]++;
+	cqp->requested_ops++;
 	if (!*wqe_idx)
 		cqp->polarity = !cqp->polarity;
 	wqe = cqp->sq_base[*wqe_idx].elem;
@@ -3432,7 +3432,7 @@ enum irdma_status_code irdma_sc_ccq_get_cqe_info(struct irdma_sc_cq *ccq,
 	dma_wmb(); /* make sure shadow area is updated before moving tail */
 
 	IRDMA_RING_MOVE_TAIL(cqp->sq_ring);
-	ccq->dev->cqp_cmd_stats[IRDMA_OP_CMPL_CMDS]++;
+	atomic64_inc(&cqp->completed_ops);
 
 	return ret_code;
 }
diff --git a/drivers/infiniband/hw/irdma/defs.h b/drivers/infiniband/hw/irdma/defs.h
index b8c10a6ccede5..afd16a93ac69c 100644
--- a/drivers/infiniband/hw/irdma/defs.h
+++ b/drivers/infiniband/hw/irdma/defs.h
@@ -190,32 +190,30 @@ enum irdma_cqp_op_type {
 	IRDMA_OP_MANAGE_VF_PBLE_BP		= 25,
 	IRDMA_OP_QUERY_FPM_VAL			= 26,
 	IRDMA_OP_COMMIT_FPM_VAL			= 27,
-	IRDMA_OP_REQ_CMDS			= 28,
-	IRDMA_OP_CMPL_CMDS			= 29,
-	IRDMA_OP_AH_CREATE			= 30,
-	IRDMA_OP_AH_MODIFY			= 31,
-	IRDMA_OP_AH_DESTROY			= 32,
-	IRDMA_OP_MC_CREATE			= 33,
-	IRDMA_OP_MC_DESTROY			= 34,
-	IRDMA_OP_MC_MODIFY			= 35,
-	IRDMA_OP_STATS_ALLOCATE			= 36,
-	IRDMA_OP_STATS_FREE			= 37,
-	IRDMA_OP_STATS_GATHER			= 38,
-	IRDMA_OP_WS_ADD_NODE			= 39,
-	IRDMA_OP_WS_MODIFY_NODE			= 40,
-	IRDMA_OP_WS_DELETE_NODE			= 41,
-	IRDMA_OP_WS_FAILOVER_START		= 42,
-	IRDMA_OP_WS_FAILOVER_COMPLETE		= 43,
-	IRDMA_OP_SET_UP_MAP			= 44,
-	IRDMA_OP_GEN_AE				= 45,
-	IRDMA_OP_QUERY_RDMA_FEATURES		= 46,
-	IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY		= 47,
-	IRDMA_OP_ADD_LOCAL_MAC_ENTRY		= 48,
-	IRDMA_OP_DELETE_LOCAL_MAC_ENTRY		= 49,
-	IRDMA_OP_CQ_MODIFY			= 50,
+	IRDMA_OP_AH_CREATE			= 28,
+	IRDMA_OP_AH_MODIFY			= 29,
+	IRDMA_OP_AH_DESTROY			= 30,
+	IRDMA_OP_MC_CREATE			= 31,
+	IRDMA_OP_MC_DESTROY			= 32,
+	IRDMA_OP_MC_MODIFY			= 33,
+	IRDMA_OP_STATS_ALLOCATE			= 34,
+	IRDMA_OP_STATS_FREE			= 35,
+	IRDMA_OP_STATS_GATHER			= 36,
+	IRDMA_OP_WS_ADD_NODE			= 37,
+	IRDMA_OP_WS_MODIFY_NODE			= 38,
+	IRDMA_OP_WS_DELETE_NODE			= 39,
+	IRDMA_OP_WS_FAILOVER_START		= 40,
+	IRDMA_OP_WS_FAILOVER_COMPLETE		= 41,
+	IRDMA_OP_SET_UP_MAP			= 42,
+	IRDMA_OP_GEN_AE				= 43,
+	IRDMA_OP_QUERY_RDMA_FEATURES		= 44,
+	IRDMA_OP_ALLOC_LOCAL_MAC_ENTRY		= 45,
+	IRDMA_OP_ADD_LOCAL_MAC_ENTRY		= 46,
+	IRDMA_OP_DELETE_LOCAL_MAC_ENTRY		= 47,
+	IRDMA_OP_CQ_MODIFY			= 48,
 
 	/* Must be last entry*/
-	IRDMA_MAX_CQP_OPS			= 51,
+	IRDMA_MAX_CQP_OPS			= 49,
 };
 
 /* CQP SQ WQES */
diff --git a/drivers/infiniband/hw/irdma/type.h b/drivers/infiniband/hw/irdma/type.h
index 1241e5988c101..8b75e2610e5ba 100644
--- a/drivers/infiniband/hw/irdma/type.h
+++ b/drivers/infiniband/hw/irdma/type.h
@@ -411,6 +411,8 @@ struct irdma_sc_cqp {
 	struct irdma_dcqcn_cc_params dcqcn_params;
 	__le64 *host_ctx;
 	u64 *scratch_array;
+	u64 requested_ops;
+	atomic64_t completed_ops;
 	u32 cqp_id;
 	u32 sq_size;
 	u32 hw_sq_size;
diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c
index 1d9280d46d087..d96779996e026 100644
--- a/drivers/infiniband/hw/irdma/utils.c
+++ b/drivers/infiniband/hw/irdma/utils.c
@@ -567,7 +567,7 @@ static enum irdma_status_code irdma_wait_event(struct irdma_pci_f *rf,
 	bool cqp_error = false;
 	enum irdma_status_code err_code = 0;
 
-	cqp_timeout.compl_cqp_cmds = rf->sc_dev.cqp_cmd_stats[IRDMA_OP_CMPL_CMDS];
+	cqp_timeout.compl_cqp_cmds = atomic64_read(&rf->sc_dev.cqp->completed_ops);
 	do {
 		irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
 		if (wait_event_timeout(cqp_request->waitq,
-- 
2.40.1

[PATCH 5.15 087/155] RDMA/irdma: Fix data race on CQP request done

[Greg Kroah-Hartman]

From: Shiraz Saleem <shiraz.saleem@intel.com>

[ Upstream commit f0842bb3d38863777e3454da5653d80b5fde6321 ]

KCSAN detects a data race on cqp_request->request_done memory location
which is accessed locklessly in irdma_handle_cqp_op while being
updated in irdma_cqp_ce_handler.

Annotate lockless intent with READ_ONCE/WRITE_ONCE to avoid any
compiler optimizations like load fusing and/or KCSAN warning.

[222808.417128] BUG: KCSAN: data-race in irdma_cqp_ce_handler [irdma] / irdma_wait_event [irdma]

[222808.417532] write to 0xffff8e44107019dc of 1 bytes by task 29658 on cpu 5:
[222808.417610]  irdma_cqp_ce_handler+0x21e/0x270 [irdma]
[222808.417725]  cqp_compl_worker+0x1b/0x20 [irdma]
[222808.417827]  process_one_work+0x4d1/0xa40
[222808.417835]  worker_thread+0x319/0x700
[222808.417842]  kthread+0x180/0x1b0
[222808.417852]  ret_from_fork+0x22/0x30

[222808.417918] read to 0xffff8e44107019dc of 1 bytes by task 29688 on cpu 1:
[222808.417995]  irdma_wait_event+0x1e2/0x2c0 [irdma]
[222808.418099]  irdma_handle_cqp_op+0xae/0x170 [irdma]
[222808.418202]  irdma_cqp_cq_destroy_cmd+0x70/0x90 [irdma]
[222808.418308]  irdma_puda_dele_rsrc+0x46d/0x4d0 [irdma]
[222808.418411]  irdma_rt_deinit_hw+0x179/0x1d0 [irdma]
[222808.418514]  irdma_ib_dealloc_device+0x11/0x40 [irdma]
[222808.418618]  ib_dealloc_device+0x2a/0x120 [ib_core]
[222808.418823]  __ib_unregister_device+0xde/0x100 [ib_core]
[222808.418981]  ib_unregister_device+0x22/0x40 [ib_core]
[222808.419142]  irdma_ib_unregister_device+0x70/0x90 [irdma]
[222808.419248]  i40iw_close+0x6f/0xc0 [irdma]
[222808.419352]  i40e_client_device_unregister+0x14a/0x180 [i40e]
[222808.419450]  i40iw_remove+0x21/0x30 [irdma]
[222808.419554]  auxiliary_bus_remove+0x31/0x50
[222808.419563]  device_remove+0x69/0xb0
[222808.419572]  device_release_driver_internal+0x293/0x360
[222808.419582]  driver_detach+0x7c/0xf0
[222808.419592]  bus_remove_driver+0x8c/0x150
[222808.419600]  driver_unregister+0x45/0x70
[222808.419610]  auxiliary_driver_unregister+0x16/0x30
[222808.419618]  irdma_exit_module+0x18/0x1e [irdma]
[222808.419733]  __do_sys_delete_module.constprop.0+0x1e2/0x310
[222808.419745]  __x64_sys_delete_module+0x1b/0x30
[222808.419755]  do_syscall_64+0x39/0x90
[222808.419763]  entry_SYSCALL_64_after_hwframe+0x63/0xcd

[222808.419829] value changed: 0x01 -> 0x03

Fixes: 915cc7ac0f8e ("RDMA/irdma: Add miscellaneous utility definitions")
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230711175253.1289-4-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/irdma/hw.c    | 2 +-
 drivers/infiniband/hw/irdma/main.h  | 2 +-
 drivers/infiniband/hw/irdma/utils.c | 6 +++---
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c
index 2159470d7f7f4..0221200e16541 100644
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -2084,7 +2084,7 @@ void irdma_cqp_ce_handler(struct irdma_pci_f *rf, struct irdma_sc_cq *cq)
 			cqp_request->compl_info.error = info.error;
 
 			if (cqp_request->waiting) {
-				cqp_request->request_done = true;
+				WRITE_ONCE(cqp_request->request_done, true);
 				wake_up(&cqp_request->waitq);
 				irdma_put_cqp_request(&rf->cqp, cqp_request);
 			} else {
diff --git a/drivers/infiniband/hw/irdma/main.h b/drivers/infiniband/hw/irdma/main.h
index 454b4b370386c..f2e2bc50c6f7b 100644
--- a/drivers/infiniband/hw/irdma/main.h
+++ b/drivers/infiniband/hw/irdma/main.h
@@ -160,8 +160,8 @@ struct irdma_cqp_request {
 	void (*callback_fcn)(struct irdma_cqp_request *cqp_request);
 	void *param;
 	struct irdma_cqp_compl_info compl_info;
+	bool request_done; /* READ/WRITE_ONCE macros operate on it */
 	bool waiting:1;
-	bool request_done:1;
 	bool dynamic:1;
 };
 
diff --git a/drivers/infiniband/hw/irdma/utils.c b/drivers/infiniband/hw/irdma/utils.c
index d96779996e026..a47eedb6df82f 100644
--- a/drivers/infiniband/hw/irdma/utils.c
+++ b/drivers/infiniband/hw/irdma/utils.c
@@ -481,7 +481,7 @@ void irdma_free_cqp_request(struct irdma_cqp *cqp,
 	if (cqp_request->dynamic) {
 		kfree(cqp_request);
 	} else {
-		cqp_request->request_done = false;
+		WRITE_ONCE(cqp_request->request_done, false);
 		cqp_request->callback_fcn = NULL;
 		cqp_request->waiting = false;
 
@@ -515,7 +515,7 @@ irdma_free_pending_cqp_request(struct irdma_cqp *cqp,
 {
 	if (cqp_request->waiting) {
 		cqp_request->compl_info.error = true;
-		cqp_request->request_done = true;
+		WRITE_ONCE(cqp_request->request_done, true);
 		wake_up(&cqp_request->waitq);
 	}
 	wait_event_timeout(cqp->remove_wq,
@@ -571,7 +571,7 @@ static enum irdma_status_code irdma_wait_event(struct irdma_pci_f *rf,
 	do {
 		irdma_cqp_ce_handler(rf, &rf->ccq.sc_cq);
 		if (wait_event_timeout(cqp_request->waitq,
-				       cqp_request->request_done,
+				       READ_ONCE(cqp_request->request_done),
 				       msecs_to_jiffies(CQP_COMPL_WAIT_TIME_MS)))
 			break;
 
-- 
2.40.1

[PATCH 5.15 088/155] RDMA/mthca: Fix crash when polling CQ for shared QPs

[Greg Kroah-Hartman]

From: Thomas Bogendoerfer <tbogendoerfer@suse.de>

[ Upstream commit dc52aadbc1849cbe3fcf6bc54d35f6baa396e0a1 ]

Commit 21c2fe94abb2 ("RDMA/mthca: Combine special QP struct with mthca QP")
introduced a new struct mthca_sqp which doesn't contain struct mthca_qp
any longer. Placing a pointer of this new struct into qptable leads
to crashes, because mthca_poll_one() expects a qp pointer. Fix this
by putting the correct pointer into qptable.

Fixes: 21c2fe94abb2 ("RDMA/mthca: Combine special QP struct with mthca QP")
Signed-off-by: Thomas Bogendoerfer <tbogendoerfer@suse.de>
Link: https://lore.kernel.org/r/20230713141658.9426-1-tbogendoerfer@suse.de
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/mthca/mthca_qp.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/mthca/mthca_qp.c b/drivers/infiniband/hw/mthca/mthca_qp.c
index 69bba0ef4a5df..53f43649f7d08 100644
--- a/drivers/infiniband/hw/mthca/mthca_qp.c
+++ b/drivers/infiniband/hw/mthca/mthca_qp.c
@@ -1393,7 +1393,7 @@ int mthca_alloc_sqp(struct mthca_dev *dev,
 	if (mthca_array_get(&dev->qp_table.qp, mqpn))
 		err = -EBUSY;
 	else
-		mthca_array_set(&dev->qp_table.qp, mqpn, qp->sqp);
+		mthca_array_set(&dev->qp_table.qp, mqpn, qp);
 	spin_unlock_irq(&dev->qp_table.lock);
 
 	if (err)
-- 
2.40.1

[PATCH 5.15 089/155] RDMA/bnxt_re: Prevent handling any completions after qp destroy

[Greg Kroah-Hartman]

From: Kashyap Desai <kashyap.desai@broadcom.com>

[ Upstream commit b5bbc6551297447d3cca55cf907079e206e9cd82 ]

HW may generate completions that indicates QP is destroyed.
Driver should not be scheduling any more completion handlers
for this QP, after the QP is destroyed. Since CQs are active
during the QP destroy, driver may still schedule completion
handlers. This can cause a race where the destroy_cq and poll_cq
running simultaneously.

Snippet of kernel panic while doing bnxt_re driver load unload in loop.
This indicates a poll after the CQ is freed. 

[77786.481636] Call Trace:
[77786.481640]  <TASK>
[77786.481644]  bnxt_re_poll_cq+0x14a/0x620 [bnxt_re]
[77786.481658]  ? kvm_clock_read+0x14/0x30
[77786.481693]  __ib_process_cq+0x57/0x190 [ib_core]
[77786.481728]  ib_cq_poll_work+0x26/0x80 [ib_core]
[77786.481761]  process_one_work+0x1e5/0x3f0
[77786.481768]  worker_thread+0x50/0x3a0
[77786.481785]  ? __pfx_worker_thread+0x10/0x10
[77786.481790]  kthread+0xe2/0x110
[77786.481794]  ? __pfx_kthread+0x10/0x10
[77786.481797]  ret_from_fork+0x2c/0x50

To avoid this, complete all completion handlers before returning the
destroy QP. If free_cq is called soon after destroy_qp,  IB stack
will cancel the CQ work before invoking the destroy_cq verb and
this will prevent any race mentioned.

Fixes: 1ac5a4047975 ("RDMA/bnxt_re: Add bnxt_re RoCE driver")
Signed-off-by: Kashyap Desai <kashyap.desai@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://lore.kernel.org/r/1689322969-25402-2-git-send-email-selvin.xavier@broadcom.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/bnxt_re/ib_verbs.c | 12 ++++++++++++
 drivers/infiniband/hw/bnxt_re/qplib_fp.c | 18 ++++++++++++++++++
 drivers/infiniband/hw/bnxt_re/qplib_fp.h |  1 +
 3 files changed, 31 insertions(+)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index 843d0b5d99acd..87ee616e69384 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -792,7 +792,10 @@ static int bnxt_re_destroy_gsi_sqp(struct bnxt_re_qp *qp)
 int bnxt_re_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata)
 {
 	struct bnxt_re_qp *qp = container_of(ib_qp, struct bnxt_re_qp, ib_qp);
+	struct bnxt_qplib_qp *qplib_qp = &qp->qplib_qp;
 	struct bnxt_re_dev *rdev = qp->rdev;
+	struct bnxt_qplib_nq *scq_nq = NULL;
+	struct bnxt_qplib_nq *rcq_nq = NULL;
 	unsigned int flags;
 	int rc;
 
@@ -826,6 +829,15 @@ int bnxt_re_destroy_qp(struct ib_qp *ib_qp, struct ib_udata *udata)
 	ib_umem_release(qp->rumem);
 	ib_umem_release(qp->sumem);
 
+	/* Flush all the entries of notification queue associated with
+	 * given qp.
+	 */
+	scq_nq = qplib_qp->scq->nq;
+	rcq_nq = qplib_qp->rcq->nq;
+	bnxt_re_synchronize_nq(scq_nq);
+	if (scq_nq != rcq_nq)
+		bnxt_re_synchronize_nq(rcq_nq);
+
 	return 0;
 }
 
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index d44b6a5c90b57..f1aa3e19b6de6 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -386,6 +386,24 @@ static void bnxt_qplib_service_nq(struct tasklet_struct *t)
 	spin_unlock_bh(&hwq->lock);
 }
 
+/* bnxt_re_synchronize_nq - self polling notification queue.
+ * @nq      -     notification queue pointer
+ *
+ * This function will start polling entries of a given notification queue
+ * for all pending  entries.
+ * This function is useful to synchronize notification entries while resources
+ * are going away.
+ */
+
+void bnxt_re_synchronize_nq(struct bnxt_qplib_nq *nq)
+{
+	int budget = nq->budget;
+
+	nq->budget = nq->hwq.max_elements;
+	bnxt_qplib_service_nq(&nq->nq_tasklet);
+	nq->budget = budget;
+}
+
 static irqreturn_t bnxt_qplib_nq_irq(int irq, void *dev_instance)
 {
 	struct bnxt_qplib_nq *nq = dev_instance;
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index f859710f9a7f4..49d89c0808275 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -548,6 +548,7 @@ int bnxt_qplib_process_flush_list(struct bnxt_qplib_cq *cq,
 				  struct bnxt_qplib_cqe *cqe,
 				  int num_cqes);
 void bnxt_qplib_flush_cqn_wq(struct bnxt_qplib_qp *qp);
+void bnxt_re_synchronize_nq(struct bnxt_qplib_nq *nq);
 
 static inline void *bnxt_qplib_get_swqe(struct bnxt_qplib_q *que, u32 *swq_idx)
 {
-- 
2.40.1

[PATCH 5.15 090/155] drm/msm: Fix IS_ERR_OR_NULL() vs NULL check in a5xx_submit_in_rb()

[Greg Kroah-Hartman]

From: Gaosheng Cui <cuigaosheng1@huawei.com>

[ Upstream commit 6e8a996563ecbe68e49c49abd4aaeef69f11f2dc ]

The msm_gem_get_vaddr() returns an ERR_PTR() on failure, and a null
is catastrophic here, so we should use IS_ERR_OR_NULL() to check
the return value.

Fixes: 6a8bd08d0465 ("drm/msm: add sudo flag to submit ioctl")
Signed-off-by: Gaosheng Cui <cuigaosheng1@huawei.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Reviewed-by: Abhinav Kumar <quic_abhinavk@quicinc.com>
Reviewed-by: Akhil P Oommen <quic_akhilpo@quicinc.com>
Patchwork: https://patchwork.freedesktop.org/patch/547712/
Signed-off-by: Rob Clark <robdclark@chromium.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/msm/adreno/a5xx_gpu.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
index ef62900b06128..e9c8111122bd6 100644
--- a/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
+++ b/drivers/gpu/drm/msm/adreno/a5xx_gpu.c
@@ -90,7 +90,7 @@ static void a5xx_submit_in_rb(struct msm_gpu *gpu, struct msm_gem_submit *submit
 			 * since we've already mapped it once in
 			 * submit_reloc()
 			 */
-			if (WARN_ON(!ptr))
+			if (WARN_ON(IS_ERR_OR_NULL(ptr)))
 				return;
 
 			for (i = 0; i < dwords; i++) {
-- 
2.40.1

[PATCH 5.15 091/155] ASoC: fsl_spdif: Silence output on stop

[Greg Kroah-Hartman]

From: Matus Gajdos <matuszpd@gmail.com>

[ Upstream commit 0e4c2b6b0c4a4b4014d9424c27e5e79d185229c5 ]

Clear TX registers on stop to prevent the SPDIF interface from sending
last written word over and over again.

Fixes: a2388a498ad2 ("ASoC: fsl: Add S/PDIF CPU DAI driver")
Signed-off-by: Matus Gajdos <matuszpd@gmail.com>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Link: https://lore.kernel.org/r/20230719164729.19969-1-matuszpd@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 sound/soc/fsl/fsl_spdif.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/sound/soc/fsl/fsl_spdif.c b/sound/soc/fsl/fsl_spdif.c
index 8b5c3ba48516c..5b107f2555ddb 100644
--- a/sound/soc/fsl/fsl_spdif.c
+++ b/sound/soc/fsl/fsl_spdif.c
@@ -666,6 +666,8 @@ static int fsl_spdif_trigger(struct snd_pcm_substream *substream,
 	case SNDRV_PCM_TRIGGER_PAUSE_PUSH:
 		regmap_update_bits(regmap, REG_SPDIF_SCR, dmaen, 0);
 		regmap_update_bits(regmap, REG_SPDIF_SIE, intr, 0);
+		regmap_write(regmap, REG_SPDIF_STL, 0x0);
+		regmap_write(regmap, REG_SPDIF_STR, 0x0);
 		break;
 	default:
 		return -EINVAL;
-- 
2.40.1

[PATCH 5.15 092/155] block: Fix a source code comment in include/uapi/linux/blkzoned.h

[Greg Kroah-Hartman]

From: Bart Van Assche <bvanassche@acm.org>

[ Upstream commit e0933b526fbfd937c4a8f4e35fcdd49f0e22d411 ]

Fix the symbolic names for zone conditions in the blkzoned.h header
file.

Cc: Hannes Reinecke <hare@suse.de>
Cc: Damien Le Moal <dlemoal@kernel.org>
Fixes: 6a0cb1bc106f ("block: Implement support for zoned block devices")
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Reviewed-by: Damien Le Moal <dlemoal@kernel.org>
Link: https://lore.kernel.org/r/20230706201422.3987341-1-bvanassche@acm.org
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/uapi/linux/blkzoned.h | 10 +++++-----
 1 file changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/uapi/linux/blkzoned.h b/include/uapi/linux/blkzoned.h
index 656a326821a2b..321965feee354 100644
--- a/include/uapi/linux/blkzoned.h
+++ b/include/uapi/linux/blkzoned.h
@@ -51,13 +51,13 @@ enum blk_zone_type {
  *
  * The Zone Condition state machine in the ZBC/ZAC standards maps the above
  * deinitions as:
- *   - ZC1: Empty         | BLK_ZONE_EMPTY
+ *   - ZC1: Empty         | BLK_ZONE_COND_EMPTY
  *   - ZC2: Implicit Open | BLK_ZONE_COND_IMP_OPEN
  *   - ZC3: Explicit Open | BLK_ZONE_COND_EXP_OPEN
- *   - ZC4: Closed        | BLK_ZONE_CLOSED
- *   - ZC5: Full          | BLK_ZONE_FULL
- *   - ZC6: Read Only     | BLK_ZONE_READONLY
- *   - ZC7: Offline       | BLK_ZONE_OFFLINE
+ *   - ZC4: Closed        | BLK_ZONE_COND_CLOSED
+ *   - ZC5: Full          | BLK_ZONE_COND_FULL
+ *   - ZC6: Read Only     | BLK_ZONE_COND_READONLY
+ *   - ZC7: Offline       | BLK_ZONE_COND_OFFLINE
  *
  * Conditions 0x5 to 0xC are reserved by the current ZBC/ZAC spec and should
  * be considered invalid.
-- 
2.40.1

[PATCH 5.15 093/155] dm raid: fix missing reconfig_mutex unlock in raid_ctr() error paths

[Greg Kroah-Hartman]

From: Yu Kuai <yukuai3@huawei.com>

[ Upstream commit bae3028799dc4f1109acc4df37c8ff06f2d8f1a0 ]

In the error paths 'bad_stripe_cache' and 'bad_check_reshape',
'reconfig_mutex' is still held after raid_ctr() returns.

Fixes: 9dbd1aa3a81c ("dm raid: add reshaping support to the target")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-raid.c | 9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index eba277bb8a1f1..d3ac3b894bdf5 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3278,15 +3278,19 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	/* Try to adjust the raid4/5/6 stripe cache size to the stripe size */
 	if (rs_is_raid456(rs)) {
 		r = rs_set_raid456_stripe_cache(rs);
-		if (r)
+		if (r) {
+			mddev_unlock(&rs->md);
 			goto bad_stripe_cache;
+		}
 	}
 
 	/* Now do an early reshape check */
 	if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) {
 		r = rs_check_reshape(rs);
-		if (r)
+		if (r) {
+			mddev_unlock(&rs->md);
 			goto bad_check_reshape;
+		}
 
 		/* Restore new, ctr requested layout to perform check */
 		rs_config_restore(rs, &rs_layout);
@@ -3295,6 +3299,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 			r = rs->md.pers->check_reshape(&rs->md);
 			if (r) {
 				ti->error = "Reshape check failed";
+				mddev_unlock(&rs->md);
 				goto bad_check_reshape;
 			}
 		}
-- 
2.40.1

[PATCH 5.15 094/155] dm raid: clean up four equivalent goto tags in raid_ctr()

[Greg Kroah-Hartman]

From: Yu Kuai <yukuai3@huawei.com>

[ Upstream commit e74c874eabe2e9173a8fbdad616cd89c70eb8ffd ]

There are four equivalent goto tags in raid_ctr(), clean them up to
use just one.

There is no functional change and this is preparation to fix
raid_ctr()'s unprotected md_stop().

Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Stable-dep-of: 7d5fff8982a2 ("dm raid: protect md_stop() with 'reconfig_mutex'")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-raid.c | 27 +++++++++------------------
 1 file changed, 9 insertions(+), 18 deletions(-)

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index d3ac3b894bdf5..6d4e287350a33 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3258,8 +3258,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	r = md_start(&rs->md);
 	if (r) {
 		ti->error = "Failed to start raid array";
-		mddev_unlock(&rs->md);
-		goto bad_md_start;
+		goto bad_unlock;
 	}
 
 	/* If raid4/5/6 journal mode explicitly requested (only possible with journal dev) -> set it */
@@ -3267,8 +3266,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 		r = r5c_journal_mode_set(&rs->md, rs->journal_dev.mode);
 		if (r) {
 			ti->error = "Failed to set raid4/5/6 journal mode";
-			mddev_unlock(&rs->md);
-			goto bad_journal_mode_set;
+			goto bad_unlock;
 		}
 	}
 
@@ -3278,19 +3276,15 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	/* Try to adjust the raid4/5/6 stripe cache size to the stripe size */
 	if (rs_is_raid456(rs)) {
 		r = rs_set_raid456_stripe_cache(rs);
-		if (r) {
-			mddev_unlock(&rs->md);
-			goto bad_stripe_cache;
-		}
+		if (r)
+			goto bad_unlock;
 	}
 
 	/* Now do an early reshape check */
 	if (test_bit(RT_FLAG_RESHAPE_RS, &rs->runtime_flags)) {
 		r = rs_check_reshape(rs);
-		if (r) {
-			mddev_unlock(&rs->md);
-			goto bad_check_reshape;
-		}
+		if (r)
+			goto bad_unlock;
 
 		/* Restore new, ctr requested layout to perform check */
 		rs_config_restore(rs, &rs_layout);
@@ -3299,8 +3293,7 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 			r = rs->md.pers->check_reshape(&rs->md);
 			if (r) {
 				ti->error = "Reshape check failed";
-				mddev_unlock(&rs->md);
-				goto bad_check_reshape;
+				goto bad_unlock;
 			}
 		}
 	}
@@ -3311,10 +3304,8 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	mddev_unlock(&rs->md);
 	return 0;
 
-bad_md_start:
-bad_journal_mode_set:
-bad_stripe_cache:
-bad_check_reshape:
+bad_unlock:
+	mddev_unlock(&rs->md);
 	md_stop(&rs->md);
 bad:
 	raid_set_free(rs);
-- 
2.40.1

[PATCH 5.15 095/155] dm raid: protect md_stop() with reconfig_mutex

[Greg Kroah-Hartman]

From: Yu Kuai <yukuai3@huawei.com>

[ Upstream commit 7d5fff8982a2199d49ec067818af7d84d4f95ca0 ]

__md_stop_writes() and __md_stop() will modify many fields that are
protected by 'reconfig_mutex', and all the callers will grab
'reconfig_mutex' except for md_stop().

Also, update md_stop() to make certain 'reconfig_mutex' is held using
lockdep_assert_held().

Fixes: 9d09e663d550 ("dm: raid456 basic support")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/md/dm-raid.c | 4 +++-
 drivers/md/md.c      | 2 ++
 2 files changed, 5 insertions(+), 1 deletion(-)

diff --git a/drivers/md/dm-raid.c b/drivers/md/dm-raid.c
index 6d4e287350a33..8d489933d5792 100644
--- a/drivers/md/dm-raid.c
+++ b/drivers/md/dm-raid.c
@@ -3305,8 +3305,8 @@ static int raid_ctr(struct dm_target *ti, unsigned int argc, char **argv)
 	return 0;
 
 bad_unlock:
-	mddev_unlock(&rs->md);
 	md_stop(&rs->md);
+	mddev_unlock(&rs->md);
 bad:
 	raid_set_free(rs);
 
@@ -3317,7 +3317,9 @@ static void raid_dtr(struct dm_target *ti)
 {
 	struct raid_set *rs = ti->private;
 
+	mddev_lock_nointr(&rs->md);
 	md_stop(&rs->md);
+	mddev_unlock(&rs->md);
 	raid_set_free(rs);
 }
 
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 5a21aeedc1ba7..89a270d293698 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -6281,6 +6281,8 @@ static void __md_stop(struct mddev *mddev)
 
 void md_stop(struct mddev *mddev)
 {
+	lockdep_assert_held(&mddev->reconfig_mutex);
+
 	/* stop the array and free an attached data structures.
 	 * This is called from dm-raid
 	 */
-- 
2.40.1

[PATCH 5.15 096/155] drm/amd: Fix an error handling mistake in psp_sw_init()

[Greg Kroah-Hartman]

From: Mario Limonciello <mario.limonciello@amd.com>

[ Upstream commit c01aebeef3ce45f696ffa0a1303cea9b34babb45 ]

If the second call to amdgpu_bo_create_kernel() fails, the memory
allocated from the first call should be cleared.  If the third call
fails, the memory from the second call should be cleared.

Fixes: b95b5391684b ("drm/amdgpu/psp: move PSP memory alloc from hw_init to sw_init")
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Lijo Lazar <lijo.lazar@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
index 65744c3bd3648..f305a0f8e9b9a 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c
@@ -341,11 +341,11 @@ static int psp_sw_init(void *handle)
 	return 0;
 
 failed2:
-	amdgpu_bo_free_kernel(&psp->fw_pri_bo,
-			      &psp->fw_pri_mc_addr, &psp->fw_pri_buf);
-failed1:
 	amdgpu_bo_free_kernel(&psp->fence_buf_bo,
 			      &psp->fence_buf_mc_addr, &psp->fence_buf);
+failed1:
+	amdgpu_bo_free_kernel(&psp->fw_pri_bo,
+			      &psp->fw_pri_mc_addr, &psp->fw_pri_buf);
 	return ret;
 }
 
-- 
2.40.1

[PATCH 5.15 097/155] RDMA/irdma: Report correct WC error

[Greg Kroah-Hartman]

From: Sindhu Devale <sindhu.devale@intel.com>

[ Upstream commit ae463563b7a1b7d4a3d0b065b09d37a76b693937 ]

Report the correct WC error if a MW bind is performed
on an already valid/bound window.

Fixes: 44d9e52977a1 ("RDMA/irdma: Implement device initialization definitions")
Signed-off-by: Sindhu Devale <sindhu.devale@intel.com>
Signed-off-by: Shiraz Saleem <shiraz.saleem@intel.com>
Link: https://lore.kernel.org/r/20230725155439.1057-2-shiraz.saleem@intel.com
Signed-off-by: Leon Romanovsky <leon@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/infiniband/hw/irdma/hw.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/infiniband/hw/irdma/hw.c b/drivers/infiniband/hw/irdma/hw.c
index 0221200e16541..70dffa9a9f674 100644
--- a/drivers/infiniband/hw/irdma/hw.c
+++ b/drivers/infiniband/hw/irdma/hw.c
@@ -191,6 +191,7 @@ static void irdma_set_flush_fields(struct irdma_sc_qp *qp,
 	case IRDMA_AE_AMP_MWBIND_INVALID_RIGHTS:
 	case IRDMA_AE_AMP_MWBIND_BIND_DISABLED:
 	case IRDMA_AE_AMP_MWBIND_INVALID_BOUNDS:
+	case IRDMA_AE_AMP_MWBIND_VALID_STAG:
 		qp->flush_code = FLUSH_MW_BIND_ERR;
 		qp->event_type = IRDMA_QP_EVENT_ACCESS_ERR;
 		break;
-- 
2.40.1

[PATCH 5.15 098/155] ata: pata_ns87415: mark ns87560_tf_read static

[Greg Kroah-Hartman]

From: Arnd Bergmann <arnd@arndb.de>

[ Upstream commit 3fc2febb0f8ffae354820c1772ec008733237cfa ]

The global function triggers a warning because of the missing prototype

drivers/ata/pata_ns87415.c:263:6: warning: no previous prototype for 'ns87560_tf_read' [-Wmissing-prototypes]
  263 | void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)

There are no other references to this, so just make it static.

Fixes: c4b5b7b6c4423 ("pata_ns87415: Initial cut at 87415/87560 IDE support")
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Reviewed-by: Serge Semin <fancer.lancer@gmail.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Signed-off-by: Damien Le Moal <dlemoal@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ata/pata_ns87415.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/ata/pata_ns87415.c b/drivers/ata/pata_ns87415.c
index 9dd6bffefb485..602472d4e693e 100644
--- a/drivers/ata/pata_ns87415.c
+++ b/drivers/ata/pata_ns87415.c
@@ -260,7 +260,7 @@ static u8 ns87560_check_status(struct ata_port *ap)
  *	LOCKING:
  *	Inherited from caller.
  */
-void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
+static void ns87560_tf_read(struct ata_port *ap, struct ata_taskfile *tf)
 {
 	struct ata_ioports *ioaddr = &ap->ioaddr;
 
-- 
2.40.1

[PATCH 5.15 099/155] ring-buffer: Fix wrong stat of cpu_buffer->read

[Greg Kroah-Hartman]

From: Zheng Yejian <zhengyejian1@huawei.com>

[ Upstream commit 2d093282b0d4357373497f65db6a05eb0c28b7c8 ]

When pages are removed in rb_remove_pages(), 'cpu_buffer->read' is set
to 0 in order to make sure any read iterators reset themselves. However,
this will mess 'entries' stating, see following steps:

  # cd /sys/kernel/tracing/
  # 1. Enlarge ring buffer prepare for later reducing:
  # echo 20 > per_cpu/cpu0/buffer_size_kb
  # 2. Write a log into ring buffer of cpu0:
  # taskset -c 0 echo "hello1" > trace_marker
  # 3. Read the log:
  # cat per_cpu/cpu0/trace_pipe
       <...>-332     [000] .....    62.406844: tracing_mark_write: hello1
  # 4. Stop reading and see the stats, now 0 entries, and 1 event readed:
  # cat per_cpu/cpu0/stats
   entries: 0
   [...]
   read events: 1
  # 5. Reduce the ring buffer
  # echo 7 > per_cpu/cpu0/buffer_size_kb
  # 6. Now entries became unexpected 1 because actually no entries!!!
  # cat per_cpu/cpu0/stats
   entries: 1
   [...]
   read events: 0

To fix it, introduce 'page_removed' field to count total removed pages
since last reset, then use it to let read iterators reset themselves
instead of changing the 'read' pointer.

Link: https://lore.kernel.org/linux-trace-kernel/20230724054040.3489499-1-zhengyejian1@huawei.com

Cc: <mhiramat@kernel.org>
Cc: <vnagarnaik@google.com>
Fixes: 83f40318dab0 ("ring-buffer: Make removal of ring buffer pages atomic")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/ring_buffer.c | 22 ++++++++++++----------
 1 file changed, 12 insertions(+), 10 deletions(-)

diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index ceeba8bf1265b..e1cef097b0df5 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -520,6 +520,8 @@ struct ring_buffer_per_cpu {
 	rb_time_t			before_stamp;
 	u64				event_stamp[MAX_NEST];
 	u64				read_stamp;
+	/* pages removed since last reset */
+	unsigned long			pages_removed;
 	/* ring buffer pages to update, > 0 to add, < 0 to remove */
 	long				nr_pages_to_update;
 	struct list_head		new_pages; /* new pages to add */
@@ -555,6 +557,7 @@ struct ring_buffer_iter {
 	struct buffer_page		*head_page;
 	struct buffer_page		*cache_reader_page;
 	unsigned long			cache_read;
+	unsigned long			cache_pages_removed;
 	u64				read_stamp;
 	u64				page_stamp;
 	struct ring_buffer_event	*event;
@@ -1931,6 +1934,8 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned long nr_pages)
 		to_remove = rb_list_head(to_remove)->next;
 		head_bit |= (unsigned long)to_remove & RB_PAGE_HEAD;
 	}
+	/* Read iterators need to reset themselves when some pages removed */
+	cpu_buffer->pages_removed += nr_removed;
 
 	next_page = rb_list_head(to_remove)->next;
 
@@ -1952,12 +1957,6 @@ rb_remove_pages(struct ring_buffer_per_cpu *cpu_buffer, unsigned long nr_pages)
 		cpu_buffer->head_page = list_entry(next_page,
 						struct buffer_page, list);
 
-	/*
-	 * change read pointer to make sure any read iterators reset
-	 * themselves
-	 */
-	cpu_buffer->read = 0;
-
 	/* pages are removed, resume tracing and then free the pages */
 	atomic_dec(&cpu_buffer->record_disabled);
 	raw_spin_unlock_irq(&cpu_buffer->reader_lock);
@@ -4347,6 +4346,7 @@ static void rb_iter_reset(struct ring_buffer_iter *iter)
 
 	iter->cache_reader_page = iter->head_page;
 	iter->cache_read = cpu_buffer->read;
+	iter->cache_pages_removed = cpu_buffer->pages_removed;
 
 	if (iter->head) {
 		iter->read_stamp = cpu_buffer->read_stamp;
@@ -4800,12 +4800,13 @@ rb_iter_peek(struct ring_buffer_iter *iter, u64 *ts)
 	buffer = cpu_buffer->buffer;
 
 	/*
-	 * Check if someone performed a consuming read to
-	 * the buffer. A consuming read invalidates the iterator
-	 * and we need to reset the iterator in this case.
+	 * Check if someone performed a consuming read to the buffer
+	 * or removed some pages from the buffer. In these cases,
+	 * iterator was invalidated and we need to reset it.
 	 */
 	if (unlikely(iter->cache_read != cpu_buffer->read ||
-		     iter->cache_reader_page != cpu_buffer->reader_page))
+		     iter->cache_reader_page != cpu_buffer->reader_page ||
+		     iter->cache_pages_removed != cpu_buffer->pages_removed))
 		rb_iter_reset(iter);
 
  again:
@@ -5249,6 +5250,7 @@ rb_reset_cpu(struct ring_buffer_per_cpu *cpu_buffer)
 	cpu_buffer->last_overrun = 0;
 
 	rb_head_page_activate(cpu_buffer);
+	cpu_buffer->pages_removed = 0;
 }
 
 /* Must have disabled the cpu buffer then done a synchronize_rcu */
-- 
2.40.1

[PATCH 5.15 100/155] tracing: Fix warning in trace_buffered_event_disable()

[Greg Kroah-Hartman]

From: Zheng Yejian <zhengyejian1@huawei.com>

[ Upstream commit dea499781a1150d285c62b26659f62fb00824fce ]

Warning happened in trace_buffered_event_disable() at
  WARN_ON_ONCE(!trace_buffered_event_ref)

  Call Trace:
   ? __warn+0xa5/0x1b0
   ? trace_buffered_event_disable+0x189/0x1b0
   __ftrace_event_enable_disable+0x19e/0x3e0
   free_probe_data+0x3b/0xa0
   unregister_ftrace_function_probe_func+0x6b8/0x800
   event_enable_func+0x2f0/0x3d0
   ftrace_process_regex.isra.0+0x12d/0x1b0
   ftrace_filter_write+0xe6/0x140
   vfs_write+0x1c9/0x6f0
   [...]

The cause of the warning is in __ftrace_event_enable_disable(),
trace_buffered_event_enable() was called once while
trace_buffered_event_disable() was called twice.
Reproduction script show as below, for analysis, see the comments:
 ```
 #!/bin/bash

 cd /sys/kernel/tracing/

 # 1. Register a 'disable_event' command, then:
 #    1) SOFT_DISABLED_BIT was set;
 #    2) trace_buffered_event_enable() was called first time;
 echo 'cmdline_proc_show:disable_event:initcall:initcall_finish' > \
     set_ftrace_filter

 # 2. Enable the event registered, then:
 #    1) SOFT_DISABLED_BIT was cleared;
 #    2) trace_buffered_event_disable() was called first time;
 echo 1 > events/initcall/initcall_finish/enable

 # 3. Try to call into cmdline_proc_show(), then SOFT_DISABLED_BIT was
 #    set again!!!
 cat /proc/cmdline

 # 4. Unregister the 'disable_event' command, then:
 #    1) SOFT_DISABLED_BIT was cleared again;
 #    2) trace_buffered_event_disable() was called second time!!!
 echo '!cmdline_proc_show:disable_event:initcall:initcall_finish' > \
     set_ftrace_filter
 ```

To fix it, IIUC, we can change to call trace_buffered_event_enable() at
fist time soft-mode enabled, and call trace_buffered_event_disable() at
last time soft-mode disabled.

Link: https://lore.kernel.org/linux-trace-kernel/20230726095804.920457-1-zhengyejian1@huawei.com

Cc: <mhiramat@kernel.org>
Fixes: 0fc1b09ff1ff ("tracing: Use temp buffer when filtering events")
Signed-off-by: Zheng Yejian <zhengyejian1@huawei.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/trace/trace_events.c | 14 ++++----------
 1 file changed, 4 insertions(+), 10 deletions(-)

diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index 160298d285c0b..2a2a599997671 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -594,7 +594,6 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
 {
 	struct trace_event_call *call = file->event_call;
 	struct trace_array *tr = file->tr;
-	unsigned long file_flags = file->flags;
 	int ret = 0;
 	int disable;
 
@@ -618,6 +617,8 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
 				break;
 			disable = file->flags & EVENT_FILE_FL_SOFT_DISABLED;
 			clear_bit(EVENT_FILE_FL_SOFT_MODE_BIT, &file->flags);
+			/* Disable use of trace_buffered_event */
+			trace_buffered_event_disable();
 		} else
 			disable = !(file->flags & EVENT_FILE_FL_SOFT_MODE);
 
@@ -656,6 +657,8 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
 			if (atomic_inc_return(&file->sm_ref) > 1)
 				break;
 			set_bit(EVENT_FILE_FL_SOFT_MODE_BIT, &file->flags);
+			/* Enable use of trace_buffered_event */
+			trace_buffered_event_enable();
 		}
 
 		if (!(file->flags & EVENT_FILE_FL_ENABLED)) {
@@ -695,15 +698,6 @@ static int __ftrace_event_enable_disable(struct trace_event_file *file,
 		break;
 	}
 
-	/* Enable or disable use of trace_buffered_event */
-	if ((file_flags & EVENT_FILE_FL_SOFT_DISABLED) !=
-	    (file->flags & EVENT_FILE_FL_SOFT_DISABLED)) {
-		if (file->flags & EVENT_FILE_FL_SOFT_DISABLED)
-			trace_buffered_event_enable();
-		else
-			trace_buffered_event_disable();
-	}
-
 	return ret;
 }
 
-- 
2.40.1

[PATCH 5.15 101/155] Revert "usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init()"

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpenter@linaro.org>

commit a8291be6b5dd465c22af229483dbac543a91e24e upstream.

This reverts commit f08aa7c80dac27ee00fa6827f447597d2fba5465.

The reverted commit was based on static analysis and a misunderstanding
of how PTR_ERR() and NULLs are supposed to work.  When a function
returns both pointer errors and NULL then normally the NULL means
"continue operating without a feature because it was deliberately
turned off".  The NULL should not be treated as a failure.  If a driver
cannot work when that feature is disabled then the KConfig should
enforce that the function cannot return NULL.  We should not need to
test for it.

In this driver, the bug means that probe cannot succeed when CONFIG_PM
is disabled.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: f08aa7c80dac ("usb: gadget: tegra-xudc: Fix error check in tegra_xudc_powerdomain_init()")
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/ZKQoBa84U/ykEh3C@moroto
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/udc/tegra-xudc.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/usb/gadget/udc/tegra-xudc.c
+++ b/drivers/usb/gadget/udc/tegra-xudc.c
@@ -3689,15 +3689,15 @@ static int tegra_xudc_powerdomain_init(s
 	int err;
 
 	xudc->genpd_dev_device = dev_pm_domain_attach_by_name(dev, "dev");
-	if (IS_ERR_OR_NULL(xudc->genpd_dev_device)) {
-		err = PTR_ERR(xudc->genpd_dev_device) ? : -ENODATA;
+	if (IS_ERR(xudc->genpd_dev_device)) {
+		err = PTR_ERR(xudc->genpd_dev_device);
 		dev_err(dev, "failed to get device power domain: %d\n", err);
 		return err;
 	}
 
 	xudc->genpd_dev_ss = dev_pm_domain_attach_by_name(dev, "ss");
-	if (IS_ERR_OR_NULL(xudc->genpd_dev_ss)) {
-		err = PTR_ERR(xudc->genpd_dev_ss) ? : -ENODATA;
+	if (IS_ERR(xudc->genpd_dev_ss)) {
+		err = PTR_ERR(xudc->genpd_dev_ss);
 		dev_err(dev, "failed to get SuperSpeed power domain: %d\n", err);
 		return err;
 	}

[PATCH 5.15 102/155] usb: gadget: call usb_gadget_check_config() to verify UDC capability

[Greg Kroah-Hartman]

From: Frank Li <Frank.Li@nxp.com>

commit f4fc01af5b640bc39bd9403b5fd855345a2ad5f8 upstream.

The legacy gadget driver omitted calling usb_gadget_check_config()
to ensure that the USB device controller (UDC) has adequate resources,
including sufficient endpoint numbers and types, to support the given
configuration.

Previously, usb_add_config() was solely invoked by the legacy gadget
driver. Adds the necessary usb_gadget_check_config() after the bind()
operation to fix the issue.

Fixes: dce49449e04f ("usb: cdns3: allocate TX FIFO size according to composite EP number")
Cc: stable <stable@kernel.org>
Reported-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20230707230015.494999-1-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/composite.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/gadget/composite.c
+++ b/drivers/usb/gadget/composite.c
@@ -1033,6 +1033,10 @@ int usb_add_config(struct usb_composite_
 		goto done;
 
 	status = bind(config);
+
+	if (status == 0)
+		status = usb_gadget_check_config(cdev->gadget);
+
 	if (status < 0) {
 		while (!list_empty(&config->functions)) {
 			struct usb_function		*f;

[PATCH 5.15 103/155] USB: gadget: Fix the memory leak in raw_gadget driver

[Greg Kroah-Hartman]

From: Zqiang <qiang.zhang1211@gmail.com>

commit 83e30f2bf86ef7c38fbd476ed81a88522b620628 upstream.

Currently, increasing raw_dev->count happens before invoke the
raw_queue_event(), if the raw_queue_event() return error, invoke
raw_release() will not trigger the dev_free() to be called.

[  268.905865][ T5067] raw-gadget.0 gadget.0: failed to queue event
[  268.912053][ T5067] udc dummy_udc.0: failed to start USB Raw Gadget: -12
[  268.918885][ T5067] raw-gadget.0: probe of gadget.0 failed with error -12
[  268.925956][ T5067] UDC core: USB Raw Gadget: couldn't find an available UDC or it's busy
[  268.934657][ T5067] misc raw-gadget: fail, usb_gadget_register_driver returned -16

BUG: memory leak

[<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076
[<ffffffff8347eb55>] kmalloc include/linux/slab.h:582 [inline]
[<ffffffff8347eb55>] kzalloc include/linux/slab.h:703 [inline]
[<ffffffff8347eb55>] dev_new drivers/usb/gadget/legacy/raw_gadget.c:191 [inline]
[<ffffffff8347eb55>] raw_open+0x45/0x110 drivers/usb/gadget/legacy/raw_gadget.c:385
[<ffffffff827d1d09>] misc_open+0x1a9/0x1f0 drivers/char/misc.c:165

[<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076
[<ffffffff8347cd2f>] kmalloc include/linux/slab.h:582 [inline]
[<ffffffff8347cd2f>] raw_ioctl_init+0xdf/0x410 drivers/usb/gadget/legacy/raw_gadget.c:460
[<ffffffff8347dfe9>] raw_ioctl+0x5f9/0x1120 drivers/usb/gadget/legacy/raw_gadget.c:1250
[<ffffffff81685173>] vfs_ioctl fs/ioctl.c:51 [inline]

[<ffffffff8154bf94>] kmalloc_trace+0x24/0x90 mm/slab_common.c:1076
[<ffffffff833ecc6a>] kmalloc include/linux/slab.h:582 [inline]
[<ffffffff833ecc6a>] kzalloc include/linux/slab.h:703 [inline]
[<ffffffff833ecc6a>] dummy_alloc_request+0x5a/0xe0 drivers/usb/gadget/udc/dummy_hcd.c:665
[<ffffffff833e9132>] usb_ep_alloc_request+0x22/0xd0 drivers/usb/gadget/udc/core.c:196
[<ffffffff8347f13d>] gadget_bind+0x6d/0x370 drivers/usb/gadget/legacy/raw_gadget.c:292

This commit therefore invoke kref_get() under the condition that
raw_queue_event() return success.

Reported-by: syzbot+feb045d335c1fdde5bf7@syzkaller.appspotmail.com
Cc: stable <stable@kernel.org>
Closes: https://syzkaller.appspot.com/bug?extid=feb045d335c1fdde5bf7
Signed-off-by: Zqiang <qiang.zhang1211@gmail.com>
Reviewed-by: Andrey Konovalov <andreyknvl@gmail.com>
Tested-by: Andrey Konovalov <andreyknvl@gmail.com>
Link: https://lore.kernel.org/r/20230714074011.20989-1-qiang.zhang1211@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/gadget/legacy/raw_gadget.c |   10 ++++++----
 1 file changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/usb/gadget/legacy/raw_gadget.c
+++ b/drivers/usb/gadget/legacy/raw_gadget.c
@@ -310,13 +310,15 @@ static int gadget_bind(struct usb_gadget
 	dev->eps_num = i;
 	spin_unlock_irqrestore(&dev->lock, flags);
 
-	/* Matches kref_put() in gadget_unbind(). */
-	kref_get(&dev->count);
-
 	ret = raw_queue_event(dev, USB_RAW_EVENT_CONNECT, 0, NULL);
-	if (ret < 0)
+	if (ret < 0) {
 		dev_err(&gadget->dev, "failed to queue event\n");
+		set_gadget_data(gadget, NULL);
+		return ret;
+	}
 
+	/* Matches kref_put() in gadget_unbind(). */
+	kref_get(&dev->count);
 	return ret;
 }
 

[PATCH 5.15 104/155] KVM: Grab a reference to KVM for VM and vCPU stats file descriptors

[Greg Kroah-Hartman]

From: Sean Christopherson <seanjc@google.com>

commit eed3013faa401aae662398709410a59bb0646e32 upstream.

Grab a reference to KVM prior to installing VM and vCPU stats file
descriptors to ensure the underlying VM and vCPU objects are not freed
until the last reference to any and all stats fds are dropped.

Note, the stats paths manually invoke fd_install() and so don't need to
grab a reference before creating the file.

Fixes: ce55c049459c ("KVM: stats: Support binary stats retrieval for a VCPU")
Fixes: fcfe1baeddbf ("KVM: stats: Support binary stats retrieval for a VM")
Reported-by: Zheng Zhang <zheng.zhang@email.ucr.edu>
Closes: https://lore.kernel.org/all/CAC_GQSr3xzZaeZt85k_RCBd5kfiOve8qXo7a81Cq53LuVQ5r=Q@mail.gmail.com
Cc: stable@vger.kernel.org
Cc: Kees Cook <keescook@chromium.org>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Kees Cook <keescook@chromium.org>
Message-Id: <20230711230131.648752-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 virt/kvm/kvm_main.c |   24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

--- a/virt/kvm/kvm_main.c
+++ b/virt/kvm/kvm_main.c
@@ -3804,8 +3804,17 @@ static ssize_t kvm_vcpu_stats_read(struc
 			sizeof(vcpu->stat), user_buffer, size, offset);
 }
 
+static int kvm_vcpu_stats_release(struct inode *inode, struct file *file)
+{
+	struct kvm_vcpu *vcpu = file->private_data;
+
+	kvm_put_kvm(vcpu->kvm);
+	return 0;
+}
+
 static const struct file_operations kvm_vcpu_stats_fops = {
 	.read = kvm_vcpu_stats_read,
+	.release = kvm_vcpu_stats_release,
 	.llseek = noop_llseek,
 };
 
@@ -3826,6 +3835,9 @@ static int kvm_vcpu_ioctl_get_stats_fd(s
 		put_unused_fd(fd);
 		return PTR_ERR(file);
 	}
+
+	kvm_get_kvm(vcpu->kvm);
+
 	file->f_mode |= FMODE_PREAD;
 	fd_install(fd, file);
 
@@ -4409,8 +4421,17 @@ static ssize_t kvm_vm_stats_read(struct
 				sizeof(kvm->stat), user_buffer, size, offset);
 }
 
+static int kvm_vm_stats_release(struct inode *inode, struct file *file)
+{
+	struct kvm *kvm = file->private_data;
+
+	kvm_put_kvm(kvm);
+	return 0;
+}
+
 static const struct file_operations kvm_vm_stats_fops = {
 	.read = kvm_vm_stats_read,
+	.release = kvm_vm_stats_release,
 	.llseek = noop_llseek,
 };
 
@@ -4429,6 +4450,9 @@ static int kvm_vm_ioctl_get_stats_fd(str
 		put_unused_fd(fd);
 		return PTR_ERR(file);
 	}
+
+	kvm_get_kvm(kvm);
+
 	file->f_mode |= FMODE_PREAD;
 	fd_install(fd, file);
 

[PATCH 5.15 105/155] KVM: VMX: Dont fudge CR0 and CR4 for restricted L2 guest

[Greg Kroah-Hartman]

From: Sean Christopherson <seanjc@google.com>

commit c4abd7352023aa96114915a0bb2b88016a425cda upstream.

Stuff CR0 and/or CR4 to be compliant with a restricted guest if and only
if KVM itself is not configured to utilize unrestricted guests, i.e. don't
stuff CR0/CR4 for a restricted L2 that is running as the guest of an
unrestricted L1.  Any attempt to VM-Enter a restricted guest with invalid
CR0/CR4 values should fail, i.e. in a nested scenario, KVM (as L0) should
never observe a restricted L2 with incompatible CR0/CR4, since nested
VM-Enter from L1 should have failed.

And if KVM does observe an active, restricted L2 with incompatible state,
e.g. due to a KVM bug, fudging CR0/CR4 instead of letting VM-Enter fail
does more harm than good, as KVM will often neglect to undo the side
effects, e.g. won't clear rmode.vm86_active on nested VM-Exit, and thus
the damage can easily spill over to L1.  On the other hand, letting
VM-Enter fail due to bad guest state is more likely to contain the damage
to L2 as KVM relies on hardware to perform most guest state consistency
checks, i.e. KVM needs to be able to reflect a failed nested VM-Enter into
L1 irrespective of (un)restricted guest behavior.

Cc: Jim Mattson <jmattson@google.com>
Cc: stable@vger.kernel.org
Fixes: bddd82d19e2e ("KVM: nVMX: KVM needs to unset "unrestricted guest" VM-execution control in vmcs02 if vmcs12 doesn't set it")
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230613203037.1968489-3-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kvm/vmx/vmx.c |   13 +++++++++----
 1 file changed, 9 insertions(+), 4 deletions(-)

--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -1416,6 +1416,11 @@ void vmx_set_rflags(struct kvm_vcpu *vcp
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	unsigned long old_rflags;
 
+	/*
+	 * Unlike CR0 and CR4, RFLAGS handling requires checking if the vCPU
+	 * is an unrestricted guest in order to mark L2 as needing emulation
+	 * if L1 runs L2 as a restricted guest.
+	 */
 	if (is_unrestricted_guest(vcpu)) {
 		kvm_register_mark_available(vcpu, VCPU_EXREG_RFLAGS);
 		vmx->rflags = rflags;
@@ -3088,7 +3093,7 @@ void vmx_set_cr0(struct kvm_vcpu *vcpu,
 	old_cr0_pg = kvm_read_cr0_bits(vcpu, X86_CR0_PG);
 
 	hw_cr0 = (cr0 & ~KVM_VM_CR0_ALWAYS_OFF);
-	if (is_unrestricted_guest(vcpu))
+	if (enable_unrestricted_guest)
 		hw_cr0 |= KVM_VM_CR0_ALWAYS_ON_UNRESTRICTED_GUEST;
 	else {
 		hw_cr0 |= KVM_VM_CR0_ALWAYS_ON;
@@ -3116,7 +3121,7 @@ void vmx_set_cr0(struct kvm_vcpu *vcpu,
 	}
 #endif
 
-	if (enable_ept && !is_unrestricted_guest(vcpu)) {
+	if (enable_ept && !enable_unrestricted_guest) {
 		/*
 		 * Ensure KVM has an up-to-date snapshot of the guest's CR3.  If
 		 * the below code _enables_ CR3 exiting, vmx_cache_reg() will
@@ -3239,7 +3244,7 @@ void vmx_set_cr4(struct kvm_vcpu *vcpu,
 	unsigned long hw_cr4;
 
 	hw_cr4 = (cr4_read_shadow() & X86_CR4_MCE) | (cr4 & ~X86_CR4_MCE);
-	if (is_unrestricted_guest(vcpu))
+	if (enable_unrestricted_guest)
 		hw_cr4 |= KVM_VM_CR4_ALWAYS_ON_UNRESTRICTED_GUEST;
 	else if (vmx->rmode.vm86_active)
 		hw_cr4 |= KVM_RMODE_VM_CR4_ALWAYS_ON;
@@ -3259,7 +3264,7 @@ void vmx_set_cr4(struct kvm_vcpu *vcpu,
 	vcpu->arch.cr4 = cr4;
 	kvm_register_mark_available(vcpu, VCPU_EXREG_CR4);
 
-	if (!is_unrestricted_guest(vcpu)) {
+	if (!enable_unrestricted_guest) {
 		if (enable_ept) {
 			if (!is_paging(vcpu)) {
 				hw_cr4 &= ~X86_CR4_PAE;

[PATCH 5.15 106/155] serial: qcom-geni: drop bogus runtime pm state update

[Greg Kroah-Hartman]

From: Johan Hovold <johan+linaro@kernel.org>

commit 4dd8752a14ca0303fbdf0a6c68ff65f0a50bd2fa upstream.

The runtime PM state should not be changed by drivers that do not
implement runtime PM even if it happens to work around a bug in PM core.

With the wake irq arming now fixed, drop the bogus runtime PM state
update which left the device in active state (and could potentially
prevent a parent device from suspending).

Fixes: f3974413cf02 ("tty: serial: qcom_geni_serial: Wakeup IRQ cleanup")
Cc: 5.6+ <stable@vger.kernel.org> # 5.6+
Signed-off-by: Johan Hovold <johan+linaro@kernel.org>
Reviewed-by: Tony Lindgren <tony@atomide.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/qcom_geni_serial.c |    7 -------
 1 file changed, 7 deletions(-)

--- a/drivers/tty/serial/qcom_geni_serial.c
+++ b/drivers/tty/serial/qcom_geni_serial.c
@@ -1455,13 +1455,6 @@ static int qcom_geni_serial_probe(struct
 	if (ret)
 		return ret;
 
-	/*
-	 * Set pm_runtime status as ACTIVE so that wakeup_irq gets
-	 * enabled/disabled from dev_pm_arm_wake_irq during system
-	 * suspend/resume respectively.
-	 */
-	pm_runtime_set_active(&pdev->dev);
-
 	if (port->wakeup_irq > 0) {
 		device_init_wakeup(&pdev->dev, true);
 		ret = dev_pm_set_dedicated_wake_irq(&pdev->dev,

[PATCH 5.15 107/155] serial: 8250_dw: Preserve original value of DLF register

[Greg Kroah-Hartman]

From: Ruihong Luo <colorsu1922@gmail.com>

commit 748c5ea8b8796ae8ee80b8d3a3d940570b588d59 upstream.

Preserve the original value of the Divisor Latch Fraction (DLF) register.
When the DLF register is modified without preservation, it can disrupt
the baudrate settings established by firmware or bootloader, leading to
data corruption and the generation of unreadable or distorted characters.

Fixes: 701c5e73b296 ("serial: 8250_dw: add fractional divisor support")
Cc: stable <stable@kernel.org>
Signed-off-by: Ruihong Luo <colorsu1922@gmail.com>
Link: https://lore.kernel.org/stable/20230713004235.35904-1-colorsu1922%40gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230713004235.35904-1-colorsu1922@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/8250/8250_dwlib.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/tty/serial/8250/8250_dwlib.c
+++ b/drivers/tty/serial/8250/8250_dwlib.c
@@ -80,7 +80,7 @@ static void dw8250_set_divisor(struct ua
 void dw8250_setup_port(struct uart_port *p)
 {
 	struct uart_8250_port *up = up_to_u8250p(p);
-	u32 reg;
+	u32 reg, old_dlf;
 
 	/*
 	 * If the Component Version Register returns zero, we know that
@@ -93,9 +93,11 @@ void dw8250_setup_port(struct uart_port
 	dev_dbg(p->dev, "Designware UART version %c.%c%c\n",
 		(reg >> 24) & 0xff, (reg >> 16) & 0xff, (reg >> 8) & 0xff);
 
+	/* Preserve value written by firmware or bootloader  */
+	old_dlf = dw8250_readl_ext(p, DW_UART_DLF);
 	dw8250_writel_ext(p, DW_UART_DLF, ~0U);
 	reg = dw8250_readl_ext(p, DW_UART_DLF);
-	dw8250_writel_ext(p, DW_UART_DLF, 0);
+	dw8250_writel_ext(p, DW_UART_DLF, old_dlf);
 
 	if (reg) {
 		struct dw8250_port_data *d = p->private_data;

[PATCH 5.15 108/155] serial: sifive: Fix sifive_serial_console_setup() section

[Greg Kroah-Hartman]

From: Samuel Holland <samuel.holland@sifive.com>

commit 9b8fef6345d5487137d4193bb0a0eae2203c284e upstream.

This function is called indirectly from the platform driver probe
function. Even if the driver is built in, it may be probed after
free_initmem() due to deferral or unbinding/binding via sysfs.
Thus the function cannot be marked as __init.

Fixes: 45c054d0815b ("tty: serial: add driver for the SiFive UART")
Cc: stable <stable@kernel.org>
Signed-off-by: Samuel Holland <samuel.holland@sifive.com>
Link: https://lore.kernel.org/r/20230624060159.3401369-1-samuel.holland@sifive.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/serial/sifive.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/tty/serial/sifive.c
+++ b/drivers/tty/serial/sifive.c
@@ -843,7 +843,7 @@ static void sifive_serial_console_write(
 	local_irq_restore(flags);
 }
 
-static int __init sifive_serial_console_setup(struct console *co, char *options)
+static int sifive_serial_console_setup(struct console *co, char *options)
 {
 	struct sifive_serial_port *ssp;
 	int baud = SIFIVE_DEFAULT_BAUD_RATE;

[PATCH 5.15 109/155] USB: serial: option: support Quectel EM060K_128

[Greg Kroah-Hartman]

From: Jerry Meng <jerry-meng@foxmail.com>

commit 4f7cab49cecee16120d27c1734cfdf3d6c0e5329 upstream.

EM060K_128 is EM060K's sub-model, having the same name "Quectel EM060K-GL"

MBIM + GNSS + DIAG + NMEA + AT + QDSS + DPL

T:  Bus=03 Lev=01 Prnt=01 Port=01 Cnt=02 Dev#=  8 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=00(>ifc ) Sub=00 Prot=00 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=0128 Rev= 5.04
S:  Manufacturer=Quectel
S:  Product=Quectel EM060K-GL
S:  SerialNumber=f6fa08b6
C:* #Ifs= 8 Cfg#= 1 Atr=a0 MxPwr=500mA
A:  FirstIf#= 0 IfCount= 2 Cls=02(comm.) Sub=0e Prot=00
I:* If#= 0 Alt= 0 #EPs= 1 Cls=02(comm.) Sub=0e Prot=00 Driver=cdc_mbim
E:  Ad=81(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
I:  If#= 1 Alt= 0 #EPs= 0 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
I:* If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=02 Driver=cdc_mbim
E:  Ad=8e(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 2 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=ff Driver=(none)
E:  Ad=82(I) Atr=03(Int.) MxPS=  64 Ivl=32ms
I:* If#= 3 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=ff Prot=30 Driver=option
E:  Ad=01(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=40 Driver=option
E:  Ad=85(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=84(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=02(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 5 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=ff Prot=40 Driver=option
E:  Ad=87(I) Atr=03(Int.) MxPS=  10 Ivl=32ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=03(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 6 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=70 Driver=(none)
E:  Ad=88(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:* If#= 7 Alt= 0 #EPs= 1 Cls=ff(vend.) Sub=ff Prot=80 Driver=(none)
E:  Ad=8f(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms

Signed-off-by: Jerry Meng <jerry-meng@foxmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -251,6 +251,7 @@ static void option_instat_callback(struc
 #define QUECTEL_PRODUCT_EM061K_LTA		0x0123
 #define QUECTEL_PRODUCT_EM061K_LMS		0x0124
 #define QUECTEL_PRODUCT_EC25			0x0125
+#define QUECTEL_PRODUCT_EM060K_128		0x0128
 #define QUECTEL_PRODUCT_EG91			0x0191
 #define QUECTEL_PRODUCT_EG95			0x0195
 #define QUECTEL_PRODUCT_BG96			0x0296
@@ -1197,6 +1198,9 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K, 0xff, 0x00, 0x40) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K, 0xff, 0xff, 0x30) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K, 0xff, 0xff, 0x40) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K_128, 0xff, 0xff, 0x30) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K_128, 0xff, 0x00, 0x40) },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM060K_128, 0xff, 0xff, 0x40) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM061K_LCN, 0xff, 0xff, 0x30) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM061K_LCN, 0xff, 0x00, 0x40) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EM061K_LCN, 0xff, 0xff, 0x40) },

[PATCH 5.15 110/155] USB: serial: option: add Quectel EC200A module support

[Greg Kroah-Hartman]

From: Mohsen Tahmasebi <moh53n@moh53n.ir>

commit 857ea9005806e2a458016880278f98715873e977 upstream.

Add Quectel EC200A "DIAG, AT, MODEM":

0x6005: ECM / RNDIS + DIAG + AT + MODEM

T:  Bus=01 Lev=01 Prnt=02 Port=05 Cnt=01 Dev#=  8 Spd=480  MxCh= 0
D:  Ver= 2.00 Cls=ef(misc ) Sub=02 Prot=01 MxPS=64 #Cfgs=  1
P:  Vendor=2c7c ProdID=6005 Rev=03.18
S:  Manufacturer=Android
S:  Product=Android
S:  SerialNumber=0000
C:  #Ifs= 5 Cfg#= 1 Atr=e0 MxPwr=500mA
I:  If#= 0 Alt= 0 #EPs= 1 Cls=02(commc) Sub=06 Prot=00 Driver=cdc_ether
E:  Ad=87(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms
I:  If#= 1 Alt= 1 #EPs= 2 Cls=0a(data ) Sub=00 Prot=00 Driver=cdc_ether
E:  Ad=0c(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=83(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 2 Alt= 0 #EPs= 2 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=0b(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=82(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
I:  If#= 3 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=0f(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=86(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=89(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms
I:  If#= 4 Alt= 0 #EPs= 3 Cls=ff(vend.) Sub=00 Prot=00 Driver=option
E:  Ad=0a(O) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=81(I) Atr=02(Bulk) MxPS= 512 Ivl=0ms
E:  Ad=88(I) Atr=03(Int.) MxPS=  64 Ivl=4096ms

Signed-off-by: Mohsen Tahmasebi <moh53n@moh53n.ir>
Tested-by: Mostafa Ghofrani <mostafaghrr@gmail.com>
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/option.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/usb/serial/option.c
+++ b/drivers/usb/serial/option.c
@@ -269,6 +269,7 @@ static void option_instat_callback(struc
 #define QUECTEL_PRODUCT_RM520N			0x0801
 #define QUECTEL_PRODUCT_EC200U			0x0901
 #define QUECTEL_PRODUCT_EC200S_CN		0x6002
+#define QUECTEL_PRODUCT_EC200A			0x6005
 #define QUECTEL_PRODUCT_EM061K_LWW		0x6008
 #define QUECTEL_PRODUCT_EM061K_LCN		0x6009
 #define QUECTEL_PRODUCT_EC200T			0x6026
@@ -1229,6 +1230,7 @@ static const struct usb_device_id option
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_RM520N, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, 0x0900, 0xff, 0, 0), /* RM500U-CN */
 	  .driver_info = ZLP },
+	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200A, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200U, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200S_CN, 0xff, 0, 0) },
 	{ USB_DEVICE_AND_INTERFACE_INFO(QUECTEL_VENDOR_ID, QUECTEL_PRODUCT_EC200T, 0xff, 0, 0) },

[PATCH 5.15 111/155] USB: serial: simple: add Kaufmann RKS+CAN VCP

[Greg Kroah-Hartman]

From: Oliver Neukum <oneukum@suse.com>

commit dd92c8a1f99bcd166204ffc219ea5a23dd65d64f upstream.

Add the device and product ID for this CAN bus interface / license
dongle. The device is usable either directly from user space or can be
attached to a kernel CAN interface with slcan_attach.

Reported-by: Kaufmann Automotive GmbH <info@kaufmann-automotive.ch>
Tested-by: Kaufmann Automotive GmbH <info@kaufmann-automotive.ch>
Signed-off-by: Oliver Neukum <oneukum@suse.com>
[ johan: amend commit message and move entries in sort order ]
Cc: stable@vger.kernel.org
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/usb-serial-simple.c |    7 +++++++
 1 file changed, 7 insertions(+)

--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -63,6 +63,11 @@ DEVICE(flashloader, FLASHLOADER_IDS);
 					0x01) }
 DEVICE(google, GOOGLE_IDS);
 
+/* KAUFMANN RKS+CAN VCP */
+#define KAUFMANN_IDS()			\
+	{ USB_DEVICE(0x16d0, 0x0870) }
+DEVICE(kaufmann, KAUFMANN_IDS);
+
 /* Libtransistor USB console */
 #define LIBTRANSISTOR_IDS()			\
 	{ USB_DEVICE(0x1209, 0x8b00) }
@@ -124,6 +129,7 @@ static struct usb_serial_driver * const
 	&funsoft_device,
 	&flashloader_device,
 	&google_device,
+	&kaufmann_device,
 	&libtransistor_device,
 	&vivopay_device,
 	&moto_modem_device,
@@ -142,6 +148,7 @@ static const struct usb_device_id id_tab
 	FUNSOFT_IDS(),
 	FLASHLOADER_IDS(),
 	GOOGLE_IDS(),
+	KAUFMANN_IDS(),
 	LIBTRANSISTOR_IDS(),
 	VIVOPAY_IDS(),
 	MOTO_IDS(),

[PATCH 5.15 112/155] USB: serial: simple: sort driver entries

[Greg Kroah-Hartman]

From: Johan Hovold <johan@kernel.org>

commit d245aedc00775c4d7265a9f4522cc4e1fd34d102 upstream.

Sort the driver symbols alphabetically in order to make it more obvious
where new driver entries should be added.

Cc: stable@vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Signed-off-by: Johan Hovold <johan@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/serial/usb-serial-simple.c |   66 ++++++++++++++++-----------------
 1 file changed, 33 insertions(+), 33 deletions(-)

--- a/drivers/usb/serial/usb-serial-simple.c
+++ b/drivers/usb/serial/usb-serial-simple.c
@@ -38,16 +38,6 @@ static struct usb_serial_driver vendor##
 	{ USB_DEVICE(0x0a21, 0x8001) }	/* MMT-7305WW */
 DEVICE(carelink, CARELINK_IDS);
 
-/* ZIO Motherboard USB driver */
-#define ZIO_IDS()			\
-	{ USB_DEVICE(0x1CBE, 0x0103) }
-DEVICE(zio, ZIO_IDS);
-
-/* Funsoft Serial USB driver */
-#define FUNSOFT_IDS()			\
-	{ USB_DEVICE(0x1404, 0xcddc) }
-DEVICE(funsoft, FUNSOFT_IDS);
-
 /* Infineon Flashloader driver */
 #define FLASHLOADER_IDS()		\
 	{ USB_DEVICE_INTERFACE_CLASS(0x058b, 0x0041, USB_CLASS_CDC_DATA) }, \
@@ -55,6 +45,11 @@ DEVICE(funsoft, FUNSOFT_IDS);
 	{ USB_DEVICE(0x8087, 0x0801) }
 DEVICE(flashloader, FLASHLOADER_IDS);
 
+/* Funsoft Serial USB driver */
+#define FUNSOFT_IDS()			\
+	{ USB_DEVICE(0x1404, 0xcddc) }
+DEVICE(funsoft, FUNSOFT_IDS);
+
 /* Google Serial USB SubClass */
 #define GOOGLE_IDS()						\
 	{ USB_VENDOR_AND_INTERFACE_INFO(0x18d1,			\
@@ -63,6 +58,11 @@ DEVICE(flashloader, FLASHLOADER_IDS);
 					0x01) }
 DEVICE(google, GOOGLE_IDS);
 
+/* HP4x (48/49) Generic Serial driver */
+#define HP4X_IDS()			\
+	{ USB_DEVICE(0x03f0, 0x0121) }
+DEVICE(hp4x, HP4X_IDS);
+
 /* KAUFMANN RKS+CAN VCP */
 #define KAUFMANN_IDS()			\
 	{ USB_DEVICE(0x16d0, 0x0870) }
@@ -73,11 +73,6 @@ DEVICE(kaufmann, KAUFMANN_IDS);
 	{ USB_DEVICE(0x1209, 0x8b00) }
 DEVICE(libtransistor, LIBTRANSISTOR_IDS);
 
-/* ViVOpay USB Serial Driver */
-#define VIVOPAY_IDS()			\
-	{ USB_DEVICE(0x1d5f, 0x1004) }	/* ViVOpay 8800 */
-DEVICE(vivopay, VIVOPAY_IDS);
-
 /* Motorola USB Phone driver */
 #define MOTO_IDS()			\
 	{ USB_DEVICE(0x05c6, 0x3197) },	/* unknown Motorola phone */	\
@@ -106,10 +101,10 @@ DEVICE(nokia, NOKIA_IDS);
 	{ USB_DEVICE(0x09d7, 0x0100) }	/* NovAtel FlexPack GPS */
 DEVICE_N(novatel_gps, NOVATEL_IDS, 3);
 
-/* HP4x (48/49) Generic Serial driver */
-#define HP4X_IDS()			\
-	{ USB_DEVICE(0x03f0, 0x0121) }
-DEVICE(hp4x, HP4X_IDS);
+/* Siemens USB/MPI adapter */
+#define SIEMENS_IDS()			\
+	{ USB_DEVICE(0x908, 0x0004) }
+DEVICE(siemens_mpi, SIEMENS_IDS);
 
 /* Suunto ANT+ USB Driver */
 #define SUUNTO_IDS()			\
@@ -117,47 +112,52 @@ DEVICE(hp4x, HP4X_IDS);
 	{ USB_DEVICE(0x0fcf, 0x1009) } /* Dynastream ANT USB-m Stick */
 DEVICE(suunto, SUUNTO_IDS);
 
-/* Siemens USB/MPI adapter */
-#define SIEMENS_IDS()			\
-	{ USB_DEVICE(0x908, 0x0004) }
-DEVICE(siemens_mpi, SIEMENS_IDS);
+/* ViVOpay USB Serial Driver */
+#define VIVOPAY_IDS()			\
+	{ USB_DEVICE(0x1d5f, 0x1004) }	/* ViVOpay 8800 */
+DEVICE(vivopay, VIVOPAY_IDS);
+
+/* ZIO Motherboard USB driver */
+#define ZIO_IDS()			\
+	{ USB_DEVICE(0x1CBE, 0x0103) }
+DEVICE(zio, ZIO_IDS);
 
 /* All of the above structures mushed into two lists */
 static struct usb_serial_driver * const serial_drivers[] = {
 	&carelink_device,
-	&zio_device,
-	&funsoft_device,
 	&flashloader_device,
+	&funsoft_device,
 	&google_device,
+	&hp4x_device,
 	&kaufmann_device,
 	&libtransistor_device,
-	&vivopay_device,
 	&moto_modem_device,
 	&motorola_tetra_device,
 	&nokia_device,
 	&novatel_gps_device,
-	&hp4x_device,
-	&suunto_device,
 	&siemens_mpi_device,
+	&suunto_device,
+	&vivopay_device,
+	&zio_device,
 	NULL
 };
 
 static const struct usb_device_id id_table[] = {
 	CARELINK_IDS(),
-	ZIO_IDS(),
-	FUNSOFT_IDS(),
 	FLASHLOADER_IDS(),
+	FUNSOFT_IDS(),
 	GOOGLE_IDS(),
+	HP4X_IDS(),
 	KAUFMANN_IDS(),
 	LIBTRANSISTOR_IDS(),
-	VIVOPAY_IDS(),
 	MOTO_IDS(),
 	MOTOROLA_TETRA_IDS(),
 	NOKIA_IDS(),
 	NOVATEL_IDS(),
-	HP4X_IDS(),
-	SUUNTO_IDS(),
 	SIEMENS_IDS(),
+	SUUNTO_IDS(),
+	VIVOPAY_IDS(),
+	ZIO_IDS(),
 	{ },
 };
 MODULE_DEVICE_TABLE(usb, id_table);

[PATCH 5.15 113/155] can: gs_usb: gs_can_close(): add missing set of CAN state to CAN_STATE_STOPPED

[Greg Kroah-Hartman]

From: Marc Kleine-Budde <mkl@pengutronix.de>

commit f8a2da6ec2417cca169fa85a8ab15817bccbb109 upstream.

After an initial link up the CAN device is in ERROR-ACTIVE mode. Due
to a missing CAN_STATE_STOPPED in gs_can_close() it doesn't change to
STOPPED after a link down:

| ip link set dev can0 up
| ip link set dev can0 down
| ip --details link show can0
| 13: can0: <NOARP,ECHO> mtu 16 qdisc pfifo_fast state DOWN mode DEFAULT group default qlen 10
|     link/can  promiscuity 0 allmulti 0 minmtu 0 maxmtu 0
|     can state ERROR-ACTIVE restart-ms 1000

Add missing assignment of CAN_STATE_STOPPED in gs_can_close().

Cc: stable@vger.kernel.org
Fixes: d08e973a77d1 ("can: gs_usb: Added support for the GS_USB CAN devices")
Link: https://lore.kernel.org/all/20230718-gs_usb-fix-can-state-v1-1-f19738ae2c23@pengutronix.de
Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/can/usb/gs_usb.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/drivers/net/can/usb/gs_usb.c
+++ b/drivers/net/can/usb/gs_usb.c
@@ -734,6 +734,8 @@ static int gs_can_close(struct net_devic
 	usb_kill_anchored_urbs(&dev->tx_submitted);
 	atomic_set(&dev->active_tx_urbs, 0);
 
+	dev->can.state = CAN_STATE_STOPPED;
+
 	/* reset the device */
 	rc = gs_cmd_reset(dev);
 	if (rc < 0)

[PATCH 5.15 114/155] Revert "usb: dwc3: core: Enable AutoRetry feature in the controller"

[Greg Kroah-Hartman]

From: Jakub Vanek <linuxtardis@gmail.com>

commit 734ae15ab95a18d3d425fc9cb38b7a627d786f08 upstream.

This reverts commit b138e23d3dff90c0494925b4c1874227b81bddf7.

AutoRetry has been found to sometimes cause controller freezes when
communicating with buggy USB devices.

This controller feature allows the controller in host mode to send
non-terminating/burst retry ACKs instead of terminating retry ACKs
to devices when a transaction error (CRC error or overflow) occurs.

Unfortunately, if the USB device continues to respond with a CRC error,
the controller will not complete endpoint-related commands while it
keeps trying to auto-retry. [3] The xHCI driver will notice this once
it tries to abort the transfer using a Stop Endpoint command and
does not receive a completion in time. [1]
This situation is reported to dmesg:

[sda] tag#29 uas_eh_abort_handler 0 uas-tag 1 inflight: CMD IN
[sda] tag#29 CDB: opcode=0x28 28 00 00 69 42 80 00 00 48 00
xhci-hcd: xHCI host not responding to stop endpoint command
xhci-hcd: xHCI host controller not responding, assume dead
xhci-hcd: HC died; cleaning up

Some users observed this problem on an Odroid HC2 with the JMS578
USB3-to-SATA bridge. The issue can be triggered by starting
a read-heavy workload on an attached SSD. After a while, the host
controller would die and the SSD would disappear from the system. [1]

Further analysis by Synopsys determined that controller revisions
other than the one in Odroid HC2 are also affected by this.
The recommended solution was to disable AutoRetry altogether.
This change does not have a noticeable performance impact. [2]

Revert the enablement commit. This will keep the AutoRetry bit in
the default state configured during SoC design [2].

Fixes: b138e23d3dff ("usb: dwc3: core: Enable AutoRetry feature in the controller")
Link: https://lore.kernel.org/r/a21f34c04632d250cd0a78c7c6f4a1c9c7a43142.camel@gmail.com/ [1]
Link: https://lore.kernel.org/r/20230711214834.kyr6ulync32d4ktk@synopsys.com/ [2]
Link: https://lore.kernel.org/r/20230712225518.2smu7wse6djc7l5o@synopsys.com/ [3]
Cc: stable@vger.kernel.org
Cc: Mauro Ribeiro <mauro.ribeiro@hardkernel.com>
Cc: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Suggested-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Signed-off-by: Jakub Vanek <linuxtardis@gmail.com>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230714122419.27741-1-linuxtardis@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/core.c |   16 ----------------
 drivers/usb/dwc3/core.h |    3 ---
 2 files changed, 19 deletions(-)

--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -1093,22 +1093,6 @@ static int dwc3_core_init(struct dwc3 *d
 		dwc3_writel(dwc->regs, DWC3_GUCTL1, reg);
 	}
 
-	if (dwc->dr_mode == USB_DR_MODE_HOST ||
-	    dwc->dr_mode == USB_DR_MODE_OTG) {
-		reg = dwc3_readl(dwc->regs, DWC3_GUCTL);
-
-		/*
-		 * Enable Auto retry Feature to make the controller operating in
-		 * Host mode on seeing transaction errors(CRC errors or internal
-		 * overrun scenerios) on IN transfers to reply to the device
-		 * with a non-terminating retry ACK (i.e, an ACK transcation
-		 * packet with Retry=1 & Nump != 0)
-		 */
-		reg |= DWC3_GUCTL_HSTINAUTORETRY;
-
-		dwc3_writel(dwc->regs, DWC3_GUCTL, reg);
-	}
-
 	/*
 	 * Must config both number of packets and max burst settings to enable
 	 * RX and/or TX threshold.
--- a/drivers/usb/dwc3/core.h
+++ b/drivers/usb/dwc3/core.h
@@ -252,9 +252,6 @@
 #define DWC3_GCTL_GBLHIBERNATIONEN	BIT(1)
 #define DWC3_GCTL_DSBLCLKGTNG		BIT(0)
 
-/* Global User Control Register */
-#define DWC3_GUCTL_HSTINAUTORETRY	BIT(14)
-
 /* Global User Control 1 Register */
 #define DWC3_GUCTL1_DEV_DECOUPLE_L1L2_EVT	BIT(31)
 #define DWC3_GUCTL1_TX_IPGAP_LINECHECK_DIS	BIT(28)

[PATCH 5.15 115/155] usb: dwc3: pci: skip BYT GPIO lookup table for hardwired phy

[Greg Kroah-Hartman]

From: Gratian Crisan <gratian.crisan@ni.com>

commit b32b8f2b9542d8039f5468303a6ca78c1b5611a5 upstream.

Hardware based on the Bay Trail / BYT SoCs require an external ULPI phy for
USB device-mode. The phy chip usually has its 'reset' and 'chip select'
lines connected to GPIOs described by ACPI fwnodes in the DSDT table.

Because of hardware with missing ACPI resources for the 'reset' and 'chip
select' GPIOs commit 5741022cbdf3 ("usb: dwc3: pci: Add GPIO lookup table
on platforms without ACPI GPIO resources") introduced a fallback
gpiod_lookup_table with hard-coded mappings for Bay Trail devices.

However there are existing Bay Trail based devices, like the National
Instruments cRIO-903x series, where the phy chip has its 'reset' and
'chip-select' lines always asserted in hardware via resistor pull-ups. On
this hardware the phy chip is always enabled and the ACPI dsdt table is
missing information not only for the 'chip-select' and 'reset' lines but
also for the BYT GPIO controller itself "INT33FC".

With the introduction of the gpiod_lookup_table initializing the USB
device-mode on these hardware now errors out. The error comes from the
gpiod_get_optional() calls in dwc3_pci_quirks() which will now return an
-ENOENT error due to the missing ACPI entry for the INT33FC gpio controller
used in the aforementioned table.

This hardware used to work before because gpiod_get_optional() will return
NULL instead of -ENOENT if no GPIO has been assigned to the requested
function. The dwc3_pci_quirks() code for setting the 'cs' and 'reset' GPIOs
was then skipped (due to the NULL return). This is the correct behavior in
cases where the phy chip is hardwired and there are no GPIOs to control.

Since the gpiod_lookup_table relies on the presence of INT33FC fwnode
in ACPI tables only add the table if we know the entry for the INT33FC
gpio controller is present. This allows Bay Trail based devices with
hardwired dwc3 ULPI phys to continue working.

Fixes: 5741022cbdf3 ("usb: dwc3: pci: Add GPIO lookup table on platforms without ACPI GPIO resources")
Cc: stable <stable@kernel.org>
Signed-off-by: Gratian Crisan <gratian.crisan@ni.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230726184555.218091-2-gratian.crisan@ni.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/dwc3-pci.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/usb/dwc3/dwc3-pci.c
+++ b/drivers/usb/dwc3/dwc3-pci.c
@@ -219,10 +219,12 @@ static int dwc3_pci_quirks(struct dwc3_p
 
 			/*
 			 * A lot of BYT devices lack ACPI resource entries for
-			 * the GPIOs, add a fallback mapping to the reference
+			 * the GPIOs. If the ACPI entry for the GPIO controller
+			 * is present add a fallback mapping to the reference
 			 * design GPIOs which all boards seem to use.
 			 */
-			gpiod_add_lookup_table(&platform_bytcr_gpios);
+			if (acpi_dev_present("INT33FC", NULL, -1))
+				gpiod_add_lookup_table(&platform_bytcr_gpios);
 
 			/*
 			 * These GPIOs will turn on the USB2 PHY. Note that we have to

[PATCH 5.15 116/155] usb: dwc3: dont reset device side if dwc3 was configured as host-only

[Greg Kroah-Hartman]

From: Jisheng Zhang <jszhang@kernel.org>

commit e835c0a4e23c38531dcee5ef77e8d1cf462658c7 upstream.

Commit c4a5153e87fd ("usb: dwc3: core: Power-off core/PHYs on
system_suspend in host mode") replaces check for HOST only dr_mode with
current_dr_role. But during booting, the current_dr_role isn't
initialized, thus the device side reset is always issued even if dwc3
was configured as host-only. What's more, on some platforms with host
only dwc3, aways issuing device side reset by accessing device register
block can cause kernel panic.

Fixes: c4a5153e87fd ("usb: dwc3: core: Power-off core/PHYs on system_suspend in host mode")
Cc: stable <stable@kernel.org>
Signed-off-by: Jisheng Zhang <jszhang@kernel.org>
Acked-by: Thinh Nguyen <Thinh.Nguyen@synopsys.com>
Link: https://lore.kernel.org/r/20230627162018.739-1-jszhang@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/dwc3/core.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/usb/dwc3/core.c
+++ b/drivers/usb/dwc3/core.c
@@ -275,9 +275,9 @@ int dwc3_core_soft_reset(struct dwc3 *dw
 	/*
 	 * We're resetting only the device side because, if we're in host mode,
 	 * XHCI driver will reset the host block. If dwc3 was configured for
-	 * host-only mode, then we can return early.
+	 * host-only mode or current role is host, then we can return early.
 	 */
-	if (dwc->current_dr_role == DWC3_GCTL_PRTCAP_HOST)
+	if (dwc->dr_mode == USB_DR_MODE_HOST || dwc->current_dr_role == DWC3_GCTL_PRTCAP_HOST)
 		return 0;
 
 	reg = dwc3_readl(dwc->regs, DWC3_DCTL);

[PATCH 5.15 117/155] usb: ohci-at91: Fix the unhandle interrupt when resume

[Greg Kroah-Hartman]

From: Guiting Shen <aarongt.shen@gmail.com>

commit c55afcbeaa7a6f4fffdbc999a9bf3f0b29a5186f upstream.

The ohci_hcd_at91_drv_suspend() sets ohci->rh_state to OHCI_RH_HALTED when
suspend which will let the ohci_irq() skip the interrupt after resume. And
nobody to handle this interrupt.

According to the comment in ohci_hcd_at91_drv_suspend(), it need to reset
when resume from suspend(MEM) to fix by setting "hibernated" argument of
ohci_resume().

Signed-off-by: Guiting Shen <aarongt.shen@gmail.com>
Cc: stable <stable@kernel.org>
Reviewed-by: Alan Stern <stern@rowland.harvard.edu>
Link: https://lore.kernel.org/r/20230626152713.18950-1-aarongt.shen@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/ohci-at91.c |    8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

--- a/drivers/usb/host/ohci-at91.c
+++ b/drivers/usb/host/ohci-at91.c
@@ -652,7 +652,13 @@ ohci_hcd_at91_drv_resume(struct device *
 	else
 		at91_start_clock(ohci_at91);
 
-	ohci_resume(hcd, false);
+	/*
+	 * According to the comment in ohci_hcd_at91_drv_suspend()
+	 * we need to do a reset if the 48Mhz clock was stopped,
+	 * that is, if ohci_at91->wakeup is clear. Tell ohci_resume()
+	 * to reset in this case by setting its "hibernated" flag.
+	 */
+	ohci_resume(hcd, !ohci_at91->wakeup);
 
 	return 0;
 }

[PATCH 5.15 118/155] USB: quirks: add quirk for Focusrite Scarlett

[Greg Kroah-Hartman]

From: Łukasz Bartosik <lb@semihalf.com>

commit 9dc162e22387080e2d06de708b89920c0e158c9a upstream.

The Focusrite Scarlett audio device does not behave correctly during
resumes. Below is what happens during every resume (captured with
Beagle 5000):

<Suspend>
<Resume>
<Reset>/<Chirp J>/<Tiny J>
<Reset/Target disconnected>
<High Speed>

The Scarlett disconnects and is enumerated again.

However from time to time it drops completely off the USB bus during
resume. Below is captured occurrence of such an event:

<Suspend>
<Resume>
<Reset>/<Chirp J>/<Tiny J>
<Reset>/<Chirp K>/<Tiny K>
<High Speed>
<Corrupted packet>
<Reset/Target disconnected>

To fix the condition a user has to unplug and plug the device again.

With USB_QUIRK_RESET_RESUME applied ("usbcore.quirks=1235:8211:b")
for the Scarlett audio device the issue still reproduces.

Applying USB_QUIRK_DISCONNECT_SUSPEND ("usbcore.quirks=1235:8211:m")
fixed the issue and the Scarlett audio device didn't drop off the USB
bus for ~5000 suspend/resume cycles where originally issue reproduced in
~100 or less suspend/resume cycles.

Signed-off-by: Łukasz Bartosik <lb@semihalf.com>
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20230724112911.1802577-1-lb@semihalf.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/core/quirks.c |    4 ++++
 1 file changed, 4 insertions(+)

--- a/drivers/usb/core/quirks.c
+++ b/drivers/usb/core/quirks.c
@@ -436,6 +436,10 @@ static const struct usb_device_id usb_qu
 	/* novation SoundControl XL */
 	{ USB_DEVICE(0x1235, 0x0061), .driver_info = USB_QUIRK_RESET_RESUME },
 
+	/* Focusrite Scarlett Solo USB */
+	{ USB_DEVICE(0x1235, 0x8211), .driver_info =
+			USB_QUIRK_DISCONNECT_SUSPEND },
+
 	/* Huawei 4G LTE module */
 	{ USB_DEVICE(0x12d1, 0x15bb), .driver_info =
 			USB_QUIRK_DISCONNECT_SUSPEND },

[PATCH 5.15 119/155] usb: cdns3: fix incorrect calculation of ep_buf_size when more than one config

[Greg Kroah-Hartman]

From: Frank Li <Frank.Li@nxp.com>

commit 2627335a1329a0d39d8d277994678571c4f21800 upstream.

Previously, the cdns3_gadget_check_config() function in the cdns3 driver
mistakenly calculated the ep_buf_size by considering only one
configuration's endpoint information because "claimed" will be clear after
call usb_gadget_check_config().

The fix involves checking the private flags EP_CLAIMED instead of relying
on the "claimed" flag.

Fixes: dce49449e04f ("usb: cdns3: allocate TX FIFO size according to composite EP number")
Cc: stable <stable@kernel.org>
Reported-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Signed-off-by: Frank Li <Frank.Li@nxp.com>
Acked-by: Peter Chen <peter.chen@kernel.org>
Tested-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Link: https://lore.kernel.org/r/20230707230015.494999-2-Frank.Li@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/cdns3/cdns3-gadget.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/usb/cdns3/cdns3-gadget.c
+++ b/drivers/usb/cdns3/cdns3-gadget.c
@@ -3012,12 +3012,14 @@ static int cdns3_gadget_udc_stop(struct
 static int cdns3_gadget_check_config(struct usb_gadget *gadget)
 {
 	struct cdns3_device *priv_dev = gadget_to_cdns3_device(gadget);
+	struct cdns3_endpoint *priv_ep;
 	struct usb_ep *ep;
 	int n_in = 0;
 	int total;
 
 	list_for_each_entry(ep, &gadget->ep_list, ep_list) {
-		if (ep->claimed && (ep->address & USB_DIR_IN))
+		priv_ep = ep_to_cdns3_ep(ep);
+		if ((priv_ep->flags & EP_CLAIMED) && (ep->address & USB_DIR_IN))
 			n_in++;
 	}
 

[PATCH 5.15 120/155] usb: xhci-mtk: set the dma max_seg_size

[Greg Kroah-Hartman]

From: Ricardo Ribalda <ribalda@chromium.org>

commit 9fd10829a9eb482e192a845675ecc5480e0bfa10 upstream.

Allow devices to have dma operations beyond 64K, and avoid warnings such
as:

DMA-API: xhci-mtk 11200000.usb: mapping sg segment longer than device claims to support [len=98304] [max=65536]

Fixes: 0cbd4b34cda9 ("xhci: mediatek: support MTK xHCI host controller")
Cc: stable <stable@kernel.org>
Tested-by: Zubin Mithra <zsm@chromium.org>
Reported-by: Zubin Mithra <zsm@chromium.org>
Signed-off-by: Ricardo Ribalda <ribalda@chromium.org>
Link: https://lore.kernel.org/r/20230628-mtk-usb-v2-1-c8c34eb9f229@chromium.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-mtk.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/usb/host/xhci-mtk.c
+++ b/drivers/usb/host/xhci-mtk.c
@@ -570,6 +570,7 @@ static int xhci_mtk_probe(struct platfor
 	}
 
 	device_init_wakeup(dev, true);
+	dma_set_max_seg_size(dev, UINT_MAX);
 
 	xhci = hcd_to_xhci(hcd);
 	xhci->main_hcd = hcd;

[PATCH 5.15 121/155] Revert "usb: xhci: tegra: Fix error check"

[Greg Kroah-Hartman]

From: Dan Carpenter <dan.carpenter@linaro.org>

commit 288b4fa1798e3637a9304c6e90a93d900e02369c upstream.

This reverts commit 18fc7c435be3f17ea26a21b2e2312fcb9088e01f.

The reverted commit was based on static analysis and a misunderstanding
of how PTR_ERR() and NULLs are supposed to work.  When a function
returns both pointer errors and NULL then normally the NULL means
"continue operating without a feature because it was deliberately
turned off".  The NULL should not be treated as a failure.  If a driver
cannot work when that feature is disabled then the KConfig should
enforce that the function cannot return NULL.  We should not need to
test for it.

In this code, the patch means that certain tegra_xusb_probe() will
fail if the firmware supports power-domains but CONFIG_PM is disabled.

Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Fixes: 18fc7c435be3 ("usb: xhci: tegra: Fix error check")
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/8baace8d-fb4b-41a4-ad5f-848ae643a23b@moroto.mountain
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-tegra.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/drivers/usb/host/xhci-tegra.c
+++ b/drivers/usb/host/xhci-tegra.c
@@ -1010,15 +1010,15 @@ static int tegra_xusb_powerdomain_init(s
 	int err;
 
 	tegra->genpd_dev_host = dev_pm_domain_attach_by_name(dev, "xusb_host");
-	if (IS_ERR_OR_NULL(tegra->genpd_dev_host)) {
-		err = PTR_ERR(tegra->genpd_dev_host) ? : -ENODATA;
+	if (IS_ERR(tegra->genpd_dev_host)) {
+		err = PTR_ERR(tegra->genpd_dev_host);
 		dev_err(dev, "failed to get host pm-domain: %d\n", err);
 		return err;
 	}
 
 	tegra->genpd_dev_ss = dev_pm_domain_attach_by_name(dev, "xusb_ss");
-	if (IS_ERR_OR_NULL(tegra->genpd_dev_ss)) {
-		err = PTR_ERR(tegra->genpd_dev_ss) ? : -ENODATA;
+	if (IS_ERR(tegra->genpd_dev_ss)) {
+		err = PTR_ERR(tegra->genpd_dev_ss);
 		dev_err(dev, "failed to get superspeed pm-domain: %d\n", err);
 		return err;
 	}

[PATCH 5.15 122/155] Documentation: security-bugs.rst: update preferences when dealing with the linux-distros group

[Greg Kroah-Hartman]

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 4fee0915e649bd0cea56dece6d96f8f4643df33c upstream.

Because the linux-distros group forces reporters to release information
about reported bugs, and they impose arbitrary deadlines in having those
bugs fixed despite not actually being kernel developers, the kernel
security team recommends not interacting with them at all as this just
causes confusion and the early-release of reported security problems.

Reviewed-by: Kees Cook <keescook@chromium.org>
Link: https://lore.kernel.org/r/2023063020-throat-pantyhose-f110@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/security-bugs.rst |   24 +++++++++++-------------
 1 file changed, 11 insertions(+), 13 deletions(-)

--- a/Documentation/admin-guide/security-bugs.rst
+++ b/Documentation/admin-guide/security-bugs.rst
@@ -63,20 +63,18 @@ information submitted to the security li
 of the report are treated confidentially even after the embargo has been
 lifted, in perpetuity.
 
-Coordination
-------------
+Coordination with other groups
+------------------------------
 
-Fixes for sensitive bugs, such as those that might lead to privilege
-escalations, may need to be coordinated with the private
-<linux-distros@vs.openwall.org> mailing list so that distribution vendors
-are well prepared to issue a fixed kernel upon public disclosure of the
-upstream fix. Distros will need some time to test the proposed patch and
-will generally request at least a few days of embargo, and vendor update
-publication prefers to happen Tuesday through Thursday. When appropriate,
-the security team can assist with this coordination, or the reporter can
-include linux-distros from the start. In this case, remember to prefix
-the email Subject line with "[vs]" as described in the linux-distros wiki:
-<http://oss-security.openwall.org/wiki/mailing-lists/distros#how-to-use-the-lists>
+The kernel security team strongly recommends that reporters of potential
+security issues NEVER contact the "linux-distros" mailing list until
+AFTER discussing it with the kernel security team.  Do not Cc: both
+lists at once.  You may contact the linux-distros mailing list after a
+fix has been agreed on and you fully understand the requirements that
+doing so will impose on you and the kernel community.
+
+The different lists have different goals and the linux-distros rules do
+not contribute to actually fixing any potential security problems.
 
 CVE assignment
 --------------

[PATCH 5.15 123/155] Documentation: security-bugs.rst: clarify CVE handling

[Greg Kroah-Hartman]

From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

commit 3c1897ae4b6bc7cc586eda2feaa2cd68325ec29c upstream.

The kernel security team does NOT assign CVEs, so document that properly
and provide the "if you want one, ask MITRE for it" response that we
give on a weekly basis in the document, so we don't have to constantly
say it to everyone who asks.

Link: https://lore.kernel.org/r/2023063022-retouch-kerosene-7e4a@gregkh
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 Documentation/admin-guide/security-bugs.rst |   13 ++++++-------
 1 file changed, 6 insertions(+), 7 deletions(-)

--- a/Documentation/admin-guide/security-bugs.rst
+++ b/Documentation/admin-guide/security-bugs.rst
@@ -79,13 +79,12 @@ not contribute to actually fixing any po
 CVE assignment
 --------------
 
-The security team does not normally assign CVEs, nor do we require them
-for reports or fixes, as this can needlessly complicate the process and
-may delay the bug handling. If a reporter wishes to have a CVE identifier
-assigned ahead of public disclosure, they will need to contact the private
-linux-distros list, described above. When such a CVE identifier is known
-before a patch is provided, it is desirable to mention it in the commit
-message if the reporter agrees.
+The security team does not assign CVEs, nor do we require them for
+reports or fixes, as this can needlessly complicate the process and may
+delay the bug handling.  If a reporter wishes to have a CVE identifier
+assigned, they should find one by themselves, for example by contacting
+MITRE directly.  However under no circumstances will a patch inclusion
+be delayed to wait for a CVE identifier to arrive.
 
 Non-disclosure agreements
 -------------------------

[PATCH 5.15 124/155] staging: r8712: Fix memory leak in _r8712_init_xmit_priv()

[Greg Kroah-Hartman]

From: Larry Finger <Larry.Finger@lwfinger.net>

commit ac83631230f77dda94154ed0ebfd368fc81c70a3 upstream.

In the above mentioned routine, memory is allocated in several places.
If the first succeeds and a later one fails, the routine will leak memory.
This patch fixes commit 2865d42c78a9 ("staging: r8712u: Add the new driver
to the mainline kernel"). A potential memory leak in
r8712_xmit_resource_alloc() is also addressed.

Fixes: 2865d42c78a9 ("staging: r8712u: Add the new driver to the mainline kernel")
Reported-by: syzbot+cf71097ffb6755df8251@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/x/log.txt?x=11ac3fa0a80000
Cc: stable@vger.kernel.org
Cc: Nam Cao <namcaov@gmail.com>
Signed-off-by: Larry Finger <Larry.Finger@lwfinger.net>
Reviewed-by: Nam Cao <namcaov@gmail.com>
Link: https://lore.kernel.org/r/20230714175417.18578-1-Larry.Finger@lwfinger.net
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/rtl8712/rtl871x_xmit.c |   43 ++++++++++++++++++++++++++-------
 drivers/staging/rtl8712/xmit_linux.c   |    6 ++++
 2 files changed, 40 insertions(+), 9 deletions(-)

--- a/drivers/staging/rtl8712/rtl871x_xmit.c
+++ b/drivers/staging/rtl8712/rtl871x_xmit.c
@@ -21,6 +21,7 @@
 #include "osdep_intf.h"
 #include "usb_ops.h"
 
+#include <linux/usb.h>
 #include <linux/ieee80211.h>
 
 static const u8 P802_1H_OUI[P80211_OUI_LEN] = {0x00, 0x00, 0xf8};
@@ -55,6 +56,7 @@ int _r8712_init_xmit_priv(struct xmit_pr
 	sint i;
 	struct xmit_buf *pxmitbuf;
 	struct xmit_frame *pxframe;
+	int j;
 
 	memset((unsigned char *)pxmitpriv, 0, sizeof(struct xmit_priv));
 	spin_lock_init(&pxmitpriv->lock);
@@ -117,11 +119,8 @@ int _r8712_init_xmit_priv(struct xmit_pr
 	_init_queue(&pxmitpriv->pending_xmitbuf_queue);
 	pxmitpriv->pallocated_xmitbuf =
 		kmalloc(NR_XMITBUFF * sizeof(struct xmit_buf) + 4, GFP_ATOMIC);
-	if (!pxmitpriv->pallocated_xmitbuf) {
-		kfree(pxmitpriv->pallocated_frame_buf);
-		pxmitpriv->pallocated_frame_buf = NULL;
-		return -ENOMEM;
-	}
+	if (!pxmitpriv->pallocated_xmitbuf)
+		goto clean_up_frame_buf;
 	pxmitpriv->pxmitbuf = pxmitpriv->pallocated_xmitbuf + 4 -
 			      ((addr_t)(pxmitpriv->pallocated_xmitbuf) & 3);
 	pxmitbuf = (struct xmit_buf *)pxmitpriv->pxmitbuf;
@@ -129,13 +128,17 @@ int _r8712_init_xmit_priv(struct xmit_pr
 		INIT_LIST_HEAD(&pxmitbuf->list);
 		pxmitbuf->pallocated_buf =
 			kmalloc(MAX_XMITBUF_SZ + XMITBUF_ALIGN_SZ, GFP_ATOMIC);
-		if (!pxmitbuf->pallocated_buf)
-			return -ENOMEM;
+		if (!pxmitbuf->pallocated_buf) {
+			j = 0;
+			goto clean_up_alloc_buf;
+		}
 		pxmitbuf->pbuf = pxmitbuf->pallocated_buf + XMITBUF_ALIGN_SZ -
 				 ((addr_t) (pxmitbuf->pallocated_buf) &
 				 (XMITBUF_ALIGN_SZ - 1));
-		if (r8712_xmit_resource_alloc(padapter, pxmitbuf))
-			return -ENOMEM;
+		if (r8712_xmit_resource_alloc(padapter, pxmitbuf)) {
+			j = 1;
+			goto clean_up_alloc_buf;
+		}
 		list_add_tail(&pxmitbuf->list,
 				 &(pxmitpriv->free_xmitbuf_queue.queue));
 		pxmitbuf++;
@@ -146,6 +149,28 @@ int _r8712_init_xmit_priv(struct xmit_pr
 	init_hwxmits(pxmitpriv->hwxmits, pxmitpriv->hwxmit_entry);
 	tasklet_setup(&pxmitpriv->xmit_tasklet, r8712_xmit_bh);
 	return 0;
+
+clean_up_alloc_buf:
+	if (j) {
+		/* failure happened in r8712_xmit_resource_alloc()
+		 * delete extra pxmitbuf->pallocated_buf
+		 */
+		kfree(pxmitbuf->pallocated_buf);
+	}
+	for (j = 0; j < i; j++) {
+		int k;
+
+		pxmitbuf--;			/* reset pointer */
+		kfree(pxmitbuf->pallocated_buf);
+		for (k = 0; k < 8; k++)		/* delete xmit urb's */
+			usb_free_urb(pxmitbuf->pxmit_urb[k]);
+	}
+	kfree(pxmitpriv->pallocated_xmitbuf);
+	pxmitpriv->pallocated_xmitbuf = NULL;
+clean_up_frame_buf:
+	kfree(pxmitpriv->pallocated_frame_buf);
+	pxmitpriv->pallocated_frame_buf = NULL;
+	return -ENOMEM;
 }
 
 void _free_xmit_priv(struct xmit_priv *pxmitpriv)
--- a/drivers/staging/rtl8712/xmit_linux.c
+++ b/drivers/staging/rtl8712/xmit_linux.c
@@ -118,6 +118,12 @@ int r8712_xmit_resource_alloc(struct _ad
 	for (i = 0; i < 8; i++) {
 		pxmitbuf->pxmit_urb[i] = usb_alloc_urb(0, GFP_KERNEL);
 		if (!pxmitbuf->pxmit_urb[i]) {
+			int k;
+
+			for (k = i - 1; k >= 0; k--) {
+				/* handle allocation errors part way through loop */
+				usb_free_urb(pxmitbuf->pxmit_urb[k]);
+			}
 			netdev_err(padapter->pnetdev, "pxmitbuf->pxmit_urb[i] == NULL\n");
 			return -ENOMEM;
 		}

[PATCH 5.15 125/155] staging: ks7010: potential buffer overflow in ks_wlan_set_encode_ext()

[Greg Kroah-Hartman]

From: Zhang Shurong <zhang_shurong@foxmail.com>

commit 5f1c7031e044cb2fba82836d55cc235e2ad619dc upstream.

The "exc->key_len" is a u16 that comes from the user.  If it's over
IW_ENCODING_TOKEN_MAX (64) that could lead to memory corruption.

Fixes: b121d84882b9 ("staging: ks7010: simplify calls to memcpy()")
Cc: stable <stable@kernel.org>
Signed-off-by: Zhang Shurong <zhang_shurong@foxmail.com>
Reviewed-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/tencent_5153B668C0283CAA15AA518325346E026A09@qq.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/staging/ks7010/ks_wlan_net.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/staging/ks7010/ks_wlan_net.c
+++ b/drivers/staging/ks7010/ks_wlan_net.c
@@ -1584,8 +1584,10 @@ static int ks_wlan_set_encode_ext(struct
 			commit |= SME_WEP_FLAG;
 		}
 		if (enc->key_len) {
-			memcpy(&key->key_val[0], &enc->key[0], enc->key_len);
-			key->key_len = enc->key_len;
+			int key_len = clamp_val(enc->key_len, 0, IW_ENCODING_TOKEN_MAX);
+
+			memcpy(&key->key_val[0], &enc->key[0], key_len);
+			key->key_len = key_len;
 			commit |= (SME_WEP_VAL1 << index);
 		}
 		break;

[PATCH 5.15 126/155] tty: n_gsm: fix UAF in gsm_cleanup_mux

[Greg Kroah-Hartman]

From: Chaoyuan Peng <hedonistsmith@gmail.com>

commit 9b9c8195f3f0d74a826077fc1c01b9ee74907239 upstream.

In gsm_cleanup_mux() the 'gsm->dlci' pointer was not cleaned properly,
leaving it a dangling pointer after gsm_dlci_release.
This leads to use-after-free where 'gsm->dlci[0]' are freed and accessed
by the subsequent gsm_cleanup_mux().

Such is the case in the following call trace:

 <TASK>
 __dump_stack lib/dump_stack.c:88 [inline]
 dump_stack_lvl+0x1e3/0x2cb lib/dump_stack.c:106
 print_address_description+0x63/0x3b0 mm/kasan/report.c:248
 __kasan_report mm/kasan/report.c:434 [inline]
 kasan_report+0x16b/0x1c0 mm/kasan/report.c:451
 gsm_cleanup_mux+0x76a/0x850 drivers/tty/n_gsm.c:2397
 gsm_config drivers/tty/n_gsm.c:2653 [inline]
 gsmld_ioctl+0xaae/0x15b0 drivers/tty/n_gsm.c:2986
 tty_ioctl+0x8ff/0xc50 drivers/tty/tty_io.c:2816
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb
 </TASK>

Allocated by task 3501:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track mm/kasan/common.c:46 [inline]
 set_alloc_info mm/kasan/common.c:434 [inline]
 ____kasan_kmalloc+0xba/0xf0 mm/kasan/common.c:513
 kasan_kmalloc include/linux/kasan.h:264 [inline]
 kmem_cache_alloc_trace+0x143/0x290 mm/slub.c:3247
 kmalloc include/linux/slab.h:591 [inline]
 kzalloc include/linux/slab.h:721 [inline]
 gsm_dlci_alloc+0x53/0x3a0 drivers/tty/n_gsm.c:1932
 gsm_activate_mux+0x1c/0x330 drivers/tty/n_gsm.c:2438
 gsm_config drivers/tty/n_gsm.c:2677 [inline]
 gsmld_ioctl+0xd46/0x15b0 drivers/tty/n_gsm.c:2986
 tty_ioctl+0x8ff/0xc50 drivers/tty/tty_io.c:2816
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Freed by task 3501:
 kasan_save_stack mm/kasan/common.c:38 [inline]
 kasan_set_track+0x4b/0x80 mm/kasan/common.c:46
 kasan_set_free_info+0x1f/0x40 mm/kasan/generic.c:360
 ____kasan_slab_free+0xd8/0x120 mm/kasan/common.c:366
 kasan_slab_free include/linux/kasan.h:230 [inline]
 slab_free_hook mm/slub.c:1705 [inline]
 slab_free_freelist_hook+0xdd/0x160 mm/slub.c:1731
 slab_free mm/slub.c:3499 [inline]
 kfree+0xf1/0x270 mm/slub.c:4559
 dlci_put drivers/tty/n_gsm.c:1988 [inline]
 gsm_dlci_release drivers/tty/n_gsm.c:2021 [inline]
 gsm_cleanup_mux+0x574/0x850 drivers/tty/n_gsm.c:2415
 gsm_config drivers/tty/n_gsm.c:2653 [inline]
 gsmld_ioctl+0xaae/0x15b0 drivers/tty/n_gsm.c:2986
 tty_ioctl+0x8ff/0xc50 drivers/tty/tty_io.c:2816
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:874 [inline]
 __se_sys_ioctl+0xf1/0x160 fs/ioctl.c:860
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3d/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x61/0xcb

Fixes: aa371e96f05d ("tty: n_gsm: fix restart handling via CLD command")
Signed-off-by: Chaoyuan Peng <hedonistsmith@gmail.com>
Cc: stable <stable@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/tty/n_gsm.c |    4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

--- a/drivers/tty/n_gsm.c
+++ b/drivers/tty/n_gsm.c
@@ -2411,8 +2411,10 @@ static void gsm_cleanup_mux(struct gsm_m
 		gsm->has_devices = false;
 	}
 	for (i = NUM_DLCI - 1; i >= 0; i--)
-		if (gsm->dlci[i])
+		if (gsm->dlci[i]) {
 			gsm_dlci_release(gsm->dlci[i]);
+			gsm->dlci[i] = NULL;
+		}
 	mutex_unlock(&gsm->mutex);
 	/* Now wipe the queues */
 	tty_ldisc_flush(gsm->tty);

[PATCH 5.15 127/155] Revert "xhci: add quirk for host controllers that dont update endpoint DCS"

[Greg Kroah-Hartman]

From: Oliver Neukum <oneukum@suse.com>

commit 5bef4b3cb95a5b883dfec8b3ffc0d671323d55bb upstream.

This reverts commit 5255660b208aebfdb71d574f3952cf48392f4306.

This quirk breaks at least the following hardware:

0b:00.0 0c03: 1106:3483 (rev 01) (prog-if 30 [XHCI])
        Subsystem: 1106:3483
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr- Stepping- SERR- FastB2B- DisINTx+
        Status: Cap+ 66MHz- UDF- FastB2B- ParErr- DEVSEL=fast >TAbort- <TAbort- <MAbort- >SERR- <PERR- INTx-
        Latency: 0, Cache Line Size: 64 bytes
        Interrupt: pin A routed to IRQ 66
        Region 0: Memory at fb400000 (64-bit, non-prefetchable) [size=4K]
        Capabilities: [80] Power Management version 3
                Flags: PMEClk- DSI- D1- D2- AuxCurrent=375mA PME(D0+,D1+,D2+,D3hot+,D3cold+)
                Status: D0 NoSoftRst- PME-Enable- DSel=0 DScale=0 PME-
        Capabilities: [90] MSI: Enable+ Count=1/4 Maskable- 64bit+
                Address: 00000000fee007b8  Data: 0000
        Capabilities: [c4] Express (v2) Endpoint, MSI 00
                DevCap: MaxPayload 256 bytes, PhantFunc 0, Latency L0s <64ns, L1 <1us
                        ExtTag- AttnBtn- AttnInd- PwrInd- RBE+ FLReset- SlotPowerLimit 89W
                DevCtl: CorrErr- NonFatalErr- FatalErr- UnsupReq-
                        RlxdOrd- ExtTag- PhantFunc- AuxPwr- NoSnoop+
                        MaxPayload 128 bytes, MaxReadReq 512 bytes
                DevSta: CorrErr- NonFatalErr- FatalErr- UnsupReq- AuxPwr+ TransPend-
                LnkCap: Port #0, Speed 5GT/s, Width x1, ASPM L0s L1, Exit Latency L0s <2us, L1 <16us
                        ClockPM+ Surprise- LLActRep- BwNot- ASPMOptComp-
                LnkCtl: ASPM Disabled; RCB 64 bytes, Disabled- CommClk+
                        ExtSynch- ClockPM- AutWidDis- BWInt- AutBWInt-
                LnkSta: Speed 5GT/s, Width x1
                        TrErr- Train- SlotClk+ DLActive- BWMgmt- ABWMgmt-
                DevCap2: Completion Timeout: Range B, TimeoutDis+ NROPrPrP- LTR-
                         10BitTagComp- 10BitTagReq- OBFF Not Supported, ExtFmt- EETLPPrefix-
                         EmergencyPowerReduction Not Supported, EmergencyPowerReductionInit-
                         FRS- TPHComp- ExtTPHComp-
                         AtomicOpsCap: 32bit- 64bit- 128bitCAS-
                DevCtl2: Completion Timeout: 50us to 50ms, TimeoutDis- LTR- 10BitTagReq- OBFF Disabled,
                         AtomicOpsCtl: ReqEn-
                LnkCtl2: Target Link Speed: 5GT/s, EnterCompliance- SpeedDis-
                         Transmit Margin: Normal Operating Range, EnterModifiedCompliance- ComplianceSOS-
                         Compliance Preset/De-emphasis: -6dB de-emphasis, 0dB preshoot
                LnkSta2: Current De-emphasis Level: -6dB, EqualizationComplete- EqualizationPhase1-
                         EqualizationPhase2- EqualizationPhase3- LinkEqualizationRequest-
                         Retimer- 2Retimers- CrosslinkRes: unsupported
       Capabilities: [100 v1] Advanced Error Reporting
                UESta:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UEMsk:  DLP- SDES- TLP- FCP- CmpltTO- CmpltAbrt- UnxCmplt- RxOF- MalfTLP- ECRC- UnsupReq- ACSViol-
                UESvrt: DLP+ SDES+ TLP- FCP+ CmpltTO- CmpltAbrt- UnxCmplt- RxOF+ MalfTLP+ ECRC- UnsupReq- ACSViol-
                CESta:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr-
                CEMsk:  RxErr- BadTLP- BadDLLP- Rollover- Timeout- AdvNonFatalErr+
                AERCap: First Error Pointer: 00, ECRCGenCap- ECRCGenEn- ECRCChkCap- ECRCChkEn-
                        MultHdrRecCap- MultHdrRecEn- TLPPfxPres- HdrLogCap-
                HeaderLog: 00000000 00000000 00000000 00000000
        Kernel driver in use: xhci_hcd
        Kernel modules: xhci_pci

with the quirk enabled it fails early with

[    0.754373] pci 0000:0b:00.0: xHCI HW did not halt within 32000 usec status = 0x1000
[    0.754419] pci 0000:0b:00.0: quirk_usb_early_handoff+0x0/0x7a0 took 31459 usecs
[    2.228048] xhci_hcd 0000:0b:00.0: xHCI Host Controller
[    2.228053] xhci_hcd 0000:0b:00.0: new USB bus registered, assigned bus number 7
[    2.260073] xhci_hcd 0000:0b:00.0: Host halt failed, -110
[    2.260079] xhci_hcd 0000:0b:00.0: can't setup: -110
[    2.260551] xhci_hcd 0000:0b:00.0: USB bus 7 deregistered
[    2.260624] xhci_hcd 0000:0b:00.0: init 0000:0b:00.0 fail, -110
[    2.260639] xhci_hcd: probe of 0000:0b:00.0 failed with error -110

The hardware in question is an external PCIe card. It looks to me like the quirk
needs to be narrowed down. But this needs information about the hardware showing
the issue this quirk is to fix. So for now a clean revert.

Signed-off-by: Oliver Neukum <oneukum@suse.com>
Fixes: 5255660b208a ("xhci: add quirk for host controllers that don't update endpoint DCS")
Cc: stable <stable@kernel.org>
Link: https://lore.kernel.org/r/20230713112830.21773-1-oneukum@suse.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/usb/host/xhci-pci.c  |    4 +---
 drivers/usb/host/xhci-ring.c |   25 +------------------------
 2 files changed, 2 insertions(+), 27 deletions(-)

--- a/drivers/usb/host/xhci-pci.c
+++ b/drivers/usb/host/xhci-pci.c
@@ -294,10 +294,8 @@ static void xhci_pci_quirks(struct devic
 			pdev->device == 0x3432)
 		xhci->quirks |= XHCI_BROKEN_STREAMS;
 
-	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483) {
+	if (pdev->vendor == PCI_VENDOR_ID_VIA && pdev->device == 0x3483)
 		xhci->quirks |= XHCI_LPM_SUPPORT;
-		xhci->quirks |= XHCI_EP_CTX_BROKEN_DCS;
-	}
 
 	if (pdev->vendor == PCI_VENDOR_ID_ASMEDIA &&
 		pdev->device == PCI_DEVICE_ID_ASMEDIA_1042_XHCI) {
--- a/drivers/usb/host/xhci-ring.c
+++ b/drivers/usb/host/xhci-ring.c
@@ -592,11 +592,8 @@ static int xhci_move_dequeue_past_td(str
 	struct xhci_ring *ep_ring;
 	struct xhci_command *cmd;
 	struct xhci_segment *new_seg;
-	struct xhci_segment *halted_seg = NULL;
 	union xhci_trb *new_deq;
 	int new_cycle;
-	union xhci_trb *halted_trb;
-	int index = 0;
 	dma_addr_t addr;
 	u64 hw_dequeue;
 	bool cycle_found = false;
@@ -634,27 +631,7 @@ static int xhci_move_dequeue_past_td(str
 	hw_dequeue = xhci_get_hw_deq(xhci, dev, ep_index, stream_id);
 	new_seg = ep_ring->deq_seg;
 	new_deq = ep_ring->dequeue;
-
-	/*
-	 * Quirk: xHC write-back of the DCS field in the hardware dequeue
-	 * pointer is wrong - use the cycle state of the TRB pointed to by
-	 * the dequeue pointer.
-	 */
-	if (xhci->quirks & XHCI_EP_CTX_BROKEN_DCS &&
-	    !(ep->ep_state & EP_HAS_STREAMS))
-		halted_seg = trb_in_td(xhci, td->start_seg,
-				       td->first_trb, td->last_trb,
-				       hw_dequeue & ~0xf, false);
-	if (halted_seg) {
-		index = ((dma_addr_t)(hw_dequeue & ~0xf) - halted_seg->dma) /
-			 sizeof(*halted_trb);
-		halted_trb = &halted_seg->trbs[index];
-		new_cycle = halted_trb->generic.field[3] & 0x1;
-		xhci_dbg(xhci, "Endpoint DCS = %d TRB index = %d cycle = %d\n",
-			 (u8)(hw_dequeue & 0x1), index, new_cycle);
-	} else {
-		new_cycle = hw_dequeue & 0x1;
-	}
+	new_cycle = hw_dequeue & 0x1;
 
 	/*
 	 * We want to find the pointer, segment and cycle state of the new trb

[PATCH 5.15 128/155] ALSA: hda/relatek: Enable Mute LED on HP 250 G8

[Greg Kroah-Hartman]

From: Luka Guzenko <l.guzenko@web.de>

commit d510acb610e6aa07a04b688236868b2a5fd60deb upstream.

This HP Notebook used ALC236 codec with COEF 0x07 idx 1 controlling
the mute LED. Enable already existing quirk for this device.

Signed-off-by: Luka Guzenko <l.guzenko@web.de>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230725111509.623773-1-l.guzenko@web.de
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/pci/hda/patch_realtek.c |    1 +
 1 file changed, 1 insertion(+)

--- a/sound/pci/hda/patch_realtek.c
+++ b/sound/pci/hda/patch_realtek.c
@@ -9079,6 +9079,7 @@ static const struct snd_pci_quirk alc269
 	SND_PCI_QUIRK(0x103c, 0x880d, "HP EliteBook 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8811, "HP Spectre x360 15-eb1xxx", ALC285_FIXUP_HP_SPECTRE_X360_EB1),
 	SND_PCI_QUIRK(0x103c, 0x8812, "HP Spectre x360 15-eb1xxx", ALC285_FIXUP_HP_SPECTRE_X360_EB1),
+	SND_PCI_QUIRK(0x103c, 0x881d, "HP 250 G8 Notebook PC", ALC236_FIXUP_HP_MUTE_LED_COEFBIT2),
 	SND_PCI_QUIRK(0x103c, 0x8846, "HP EliteBook 850 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x8847, "HP EliteBook x360 830 G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),
 	SND_PCI_QUIRK(0x103c, 0x884b, "HP EliteBook 840 Aero G8 Notebook PC", ALC285_FIXUP_HP_GPIO_LED),

[PATCH 5.15 129/155] hwmon: (k10temp) Enable AMD3255 Proc to show negative temperature

[Greg Kroah-Hartman]

From: Baskaran Kannan <Baski.Kannan@amd.com>

commit e146503ac68418859fb063a3a0cd9ec93bc52238 upstream.

Industrial processor i3255 supports temperatures -40 deg celcius
to 105 deg Celcius. The current implementation of k10temp_read_temp
rounds off any negative temperatures to '0'. To fix this,
the following changes have been made.

A flag 'disp_negative' is added to struct k10temp_data to support
AMD i3255 processors. Flag 'disp_negative' is set if 3255 processor
is found during k10temp_probe.  Flag 'disp_negative' is used to
determine whether to round off negative temperatures to '0' in
k10temp_read_temp.

Signed-off-by: Baskaran Kannan <Baski.Kannan@amd.com>
Link: https://lore.kernel.org/r/20230727162159.1056136-1-Baski.Kannan@amd.com
Fixes: aef17ca12719 ("hwmon: (k10temp) Only apply temperature offset if result is positive")
Cc: stable@vger.kernel.org
[groeck: Fixed multi-line comment]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/k10temp.c |   17 +++++++++++++++--
 1 file changed, 15 insertions(+), 2 deletions(-)

--- a/drivers/hwmon/k10temp.c
+++ b/drivers/hwmon/k10temp.c
@@ -97,6 +97,13 @@ static DEFINE_MUTEX(nb_smu_ind_mutex);
 #define F19H_M01H_CFACTOR_ICORE			1000000	/* 1A / LSB	*/
 #define F19H_M01H_CFACTOR_ISOC			310000	/* 0.31A / LSB	*/
 
+/*
+ * AMD's Industrial processor 3255 supports temperature from -40 deg to 105 deg Celsius.
+ * Use the model name to identify 3255 CPUs and set a flag to display negative temperature.
+ * Do not round off to zero for negative Tctl or Tdie values if the flag is set
+ */
+#define AMD_I3255_STR				"3255"
+
 struct k10temp_data {
 	struct pci_dev *pdev;
 	void (*read_htcreg)(struct pci_dev *pdev, u32 *regval);
@@ -106,6 +113,7 @@ struct k10temp_data {
 	u32 show_temp;
 	bool is_zen;
 	u32 ccd_offset;
+	bool disp_negative;
 };
 
 #define TCTL_BIT	0
@@ -220,12 +228,12 @@ static int k10temp_read_temp(struct devi
 		switch (channel) {
 		case 0:		/* Tctl */
 			*val = get_raw_temp(data);
-			if (*val < 0)
+			if (*val < 0 && !data->disp_negative)
 				*val = 0;
 			break;
 		case 1:		/* Tdie */
 			*val = get_raw_temp(data) - data->temp_offset;
-			if (*val < 0)
+			if (*val < 0 && !data->disp_negative)
 				*val = 0;
 			break;
 		case 2 ... 9:		/* Tccd{1-8} */
@@ -417,6 +425,11 @@ static int k10temp_probe(struct pci_dev
 	data->pdev = pdev;
 	data->show_temp |= BIT(TCTL_BIT);	/* Always show Tctl */
 
+	if (boot_cpu_data.x86 == 0x17 &&
+	    strstr(boot_cpu_data.x86_model_id, AMD_I3255_STR)) {
+		data->disp_negative = true;
+	}
+
 	if (boot_cpu_data.x86 == 0x15 &&
 	    ((boot_cpu_data.x86_model & 0xf0) == 0x60 ||
 	     (boot_cpu_data.x86_model & 0xf0) == 0x70)) {

[PATCH 5.15 130/155] hwmon: (nct7802) Fix for temp6 (PECI1) processed even if PECI1 disabled

[Greg Kroah-Hartman]

From: Gilles Buloz <Gilles.Buloz@kontron.com>

commit 54685abe660a59402344d5045ce08c43c6a5ac42 upstream.

Because of hex value 0x46 used instead of decimal 46, the temp6
(PECI1) temperature is always declared visible and then displayed
even if disabled in the chip

Signed-off-by: Gilles Buloz <gilles.buloz@kontron.com>
Link: https://lore.kernel.org/r/DU0PR10MB62526435ADBC6A85243B90E08002A@DU0PR10MB6252.EURPRD10.PROD.OUTLOOK.COM
Fixes: fcdc5739dce03 ("hwmon: (nct7802) add temperature sensor type attribute")
Cc: stable@vger.kernel.org
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/hwmon/nct7802.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/hwmon/nct7802.c
+++ b/drivers/hwmon/nct7802.c
@@ -708,7 +708,7 @@ static umode_t nct7802_temp_is_visible(s
 	if (index >= 38 && index < 46 && !(reg & 0x01))		/* PECI 0 */
 		return 0;
 
-	if (index >= 0x46 && (!(reg & 0x02)))			/* PECI 1 */
+	if (index >= 46 && !(reg & 0x02))			/* PECI 1 */
 		return 0;
 
 	return attr->mode;

[PATCH 5.15 131/155] btrfs: check if the transaction was aborted at btrfs_wait_for_commit()

[Greg Kroah-Hartman]

From: Filipe Manana <fdmanana@suse.com>

commit bf7ecbe9875061bf3fce1883e3b26b77f847d1e8 upstream.

At btrfs_wait_for_commit() we wait for a transaction to finish and then
always return 0 (success) without checking if it was aborted, in which
case the transaction didn't happen due to some critical error. Fix this
by checking if the transaction was aborted.

Fixes: 462045928bda ("Btrfs: add START_SYNC, WAIT_SYNC ioctls")
CC: stable@vger.kernel.org # 4.19+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/transaction.c |    1 +
 1 file changed, 1 insertion(+)

--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -936,6 +936,7 @@ int btrfs_wait_for_commit(struct btrfs_f
 	}
 
 	wait_for_commit(cur_trans, TRANS_STATE_COMPLETED);
+	ret = cur_trans->aborted;
 	btrfs_put_transaction(cur_trans);
 out:
 	return ret;

[PATCH 5.15 132/155] btrfs: check for commit error at btrfs_attach_transaction_barrier()

[Greg Kroah-Hartman]

From: Filipe Manana <fdmanana@suse.com>

commit b28ff3a7d7e97456fd86b68d24caa32e1cfa7064 upstream.

btrfs_attach_transaction_barrier() is used to get a handle pointing to the
current running transaction if the transaction has not started its commit
yet (its state is < TRANS_STATE_COMMIT_START). If the transaction commit
has started, then we wait for the transaction to commit and finish before
returning - however we completely ignore if the transaction was aborted
due to some error during its commit, we simply return ERR_PT(-ENOENT),
which makes the caller assume everything is fine and no errors happened.

This could make an fsync return success (0) to user space when in fact we
had a transaction abort and the target inode changes were therefore not
persisted.

Fix this by checking for the return value from btrfs_wait_for_commit(),
and if it returned an error, return it back to the caller.

Fixes: d4edf39bd5db ("Btrfs: fix uncompleted transaction")
CC: stable@vger.kernel.org # 4.19+
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/btrfs/transaction.c |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/fs/btrfs/transaction.c
+++ b/fs/btrfs/transaction.c
@@ -840,8 +840,13 @@ btrfs_attach_transaction_barrier(struct
 
 	trans = start_transaction(root, 0, TRANS_ATTACH,
 				  BTRFS_RESERVE_NO_FLUSH, true);
-	if (trans == ERR_PTR(-ENOENT))
-		btrfs_wait_for_commit(root->fs_info, 0);
+	if (trans == ERR_PTR(-ENOENT)) {
+		int ret;
+
+		ret = btrfs_wait_for_commit(root->fs_info, 0);
+		if (ret)
+			return ERR_PTR(ret);
+	}
 
 	return trans;
 }

[PATCH 5.15 133/155] file: always lock position for FMODE_ATOMIC_POS

[Greg Kroah-Hartman]

From: Christian Brauner <brauner@kernel.org>

commit 20ea1e7d13c1b544fe67c4a8dc3943bb1ab33e6f upstream.

The pidfd_getfd() system call allows a caller with ptrace_may_access()
abilities on another process to steal a file descriptor from this
process. This system call is used by debuggers, container runtimes,
system call supervisors, networking proxies etc. So while it is a
special interest system call it is used in common tools.

That ability ends up breaking our long-time optimization in fdget_pos(),
which "knew" that if we had exclusive access to the file descriptor
nobody else could access it, and we didn't need the lock for the file
position.

That check for file_count(file) was always fairly subtle - it depended
on __fdget() not incrementing the file count for single-threaded
processes and thus included that as part of the rule - but it did mean
that we didn't need to take the lock in all those traditional unix
process contexts.

So it's sad to see this go, and I'd love to have some way to re-instate
the optimization. At the same time, the lock obviously isn't ever
contended in the case we optimized, so all we were optimizing away is
the atomics and the cacheline dirtying. Let's see if anybody even
notices that the optimization is gone.

Link: https://lore.kernel.org/linux-fsdevel/20230724-vfs-fdget_pos-v1-1-a4abfd7103f3@kernel.org/
Fixes: 8649c322f75c ("pid: Implement pidfd_getfd syscall")
Cc: stable@kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/file.c |    6 ++----
 1 file changed, 2 insertions(+), 4 deletions(-)

--- a/fs/file.c
+++ b/fs/file.c
@@ -1068,10 +1068,8 @@ unsigned long __fdget_pos(unsigned int f
 	struct file *file = (struct file *)(v & ~3);
 
 	if (file && (file->f_mode & FMODE_ATOMIC_POS)) {
-		if (file_count(file) > 1) {
-			v |= FDPUT_POS_UNLOCK;
-			mutex_lock(&file->f_pos_lock);
-		}
+		v |= FDPUT_POS_UNLOCK;
+		mutex_lock(&file->f_pos_lock);
 	}
 	return v;
 }

[PATCH 5.15 134/155] nfsd: Remove incorrect check in nfsd4_validate_stateid

[Greg Kroah-Hartman]

From: Trond Myklebust <trond.myklebust@hammerspace.com>

commit f75546f58a70da5cfdcec5a45ffc377885ccbee8 upstream.

If the client is calling TEST_STATEID, then it is because some event
occurred that requires it to check all the stateids for validity and
call FREE_STATEID on the ones that have been revoked. In this case,
either the stateid exists in the list of stateids associated with that
nfs4_client, in which case it should be tested, or it does not. There
are no additional conditions to be considered.

Reported-by: "Frank Ch. Eigler" <fche@redhat.com>
Fixes: 7df302f75ee2 ("NFSD: TEST_STATEID should not return NFS4ERR_STALE_STATEID")
Cc: stable@vger.kernel.org # v5.7+
Signed-off-by: Trond Myklebust <trond.myklebust@hammerspace.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/nfsd/nfs4state.c |    2 --
 1 file changed, 2 deletions(-)

--- a/fs/nfsd/nfs4state.c
+++ b/fs/nfsd/nfs4state.c
@@ -5833,8 +5833,6 @@ static __be32 nfsd4_validate_stateid(str
 	if (ZERO_STATEID(stateid) || ONE_STATEID(stateid) ||
 		CLOSE_STATEID(stateid))
 		return status;
-	if (!same_clid(&stateid->si_opaque.so_clid, &cl->cl_clientid))
-		return status;
 	spin_lock(&cl->cl_lock);
 	s = find_stateid_locked(cl, stateid);
 	if (!s)

[PATCH 5.15 135/155] tpm_tis: Explicitly check for error code

[Greg Kroah-Hartman]

From: Alexander Steffen <Alexander.Steffen@infineon.com>

commit 513253f8c293c0c8bd46d09d337fc892bf8f9f48 upstream.

recv_data either returns the number of received bytes, or a negative value
representing an error code. Adding the return value directly to the total
number of received bytes therefore looks a little weird, since it might add
a negative error code to a sum of bytes.

The following check for size < expected usually makes the function return
ETIME in that case, so it does not cause too many problems in practice. But
to make the code look cleaner and because the caller might still be
interested in the original error code, explicitly check for the presence of
an error code and pass that through.

Cc: stable@vger.kernel.org
Fixes: cb5354253af2 ("[PATCH] tpm: spacing cleanups 2")
Signed-off-by: Alexander Steffen <Alexander.Steffen@infineon.com>
Reviewed-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/char/tpm/tpm_tis_core.c |   10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

--- a/drivers/char/tpm/tpm_tis_core.c
+++ b/drivers/char/tpm/tpm_tis_core.c
@@ -314,6 +314,7 @@ static int tpm_tis_recv(struct tpm_chip
 	int size = 0;
 	int status;
 	u32 expected;
+	int rc;
 
 	if (count < TPM_HEADER_SIZE) {
 		size = -EIO;
@@ -333,8 +334,13 @@ static int tpm_tis_recv(struct tpm_chip
 		goto out;
 	}
 
-	size += recv_data(chip, &buf[TPM_HEADER_SIZE],
-			  expected - TPM_HEADER_SIZE);
+	rc = recv_data(chip, &buf[TPM_HEADER_SIZE],
+		       expected - TPM_HEADER_SIZE);
+	if (rc < 0) {
+		size = rc;
+		goto out;
+	}
+	size += rc;
 	if (size < expected) {
 		dev_err(&chip->dev, "Unable to read remainder of result\n");
 		size = -ETIME;

[PATCH 5.15 136/155] irq-bcm6345-l1: Do not assume a fixed block to cpu mapping

[Greg Kroah-Hartman]

From: Jonas Gorski <jonas.gorski@gmail.com>

[ Upstream commit 55ad24857341c36616ecc1d9580af5626c226cf1 ]

The irq to block mapping is fixed, and interrupts from the first block
will always be routed to the first parent IRQ. But the parent interrupts
themselves can be routed to any available CPU.

This is used by the bootloader to map the first parent interrupt to the
boot CPU, regardless wether the boot CPU is the first one or the second
one.

When booting from the second CPU, the assumption that the first block's
IRQ is mapped to the first CPU breaks, and the system hangs because
interrupts do not get routed correctly.

Fix this by passing the appropriate bcm6434_l1_cpu to the interrupt
handler instead of the chip itself, so the handler always has the right
block.

Fixes: c7c42ec2baa1 ("irqchips/bmips: Add bcm6345-l1 interrupt controller")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Reviewed-by: Florian Fainelli <florian.fainelli@broadcom.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20230629072620.62527-1-jonas.gorski@gmail.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-bcm6345-l1.c | 14 +++++---------
 1 file changed, 5 insertions(+), 9 deletions(-)

diff --git a/drivers/irqchip/irq-bcm6345-l1.c b/drivers/irqchip/irq-bcm6345-l1.c
index ebc3a253f735d..7c5d8b791592e 100644
--- a/drivers/irqchip/irq-bcm6345-l1.c
+++ b/drivers/irqchip/irq-bcm6345-l1.c
@@ -82,6 +82,7 @@ struct bcm6345_l1_chip {
 };
 
 struct bcm6345_l1_cpu {
+	struct bcm6345_l1_chip	*intc;
 	void __iomem		*map_base;
 	unsigned int		parent_irq;
 	u32			enable_cache[];
@@ -115,17 +116,11 @@ static inline unsigned int cpu_for_irq(struct bcm6345_l1_chip *intc,
 
 static void bcm6345_l1_irq_handle(struct irq_desc *desc)
 {
-	struct bcm6345_l1_chip *intc = irq_desc_get_handler_data(desc);
-	struct bcm6345_l1_cpu *cpu;
+	struct bcm6345_l1_cpu *cpu = irq_desc_get_handler_data(desc);
+	struct bcm6345_l1_chip *intc = cpu->intc;
 	struct irq_chip *chip = irq_desc_get_chip(desc);
 	unsigned int idx;
 
-#ifdef CONFIG_SMP
-	cpu = intc->cpus[cpu_logical_map(smp_processor_id())];
-#else
-	cpu = intc->cpus[0];
-#endif
-
 	chained_irq_enter(chip, desc);
 
 	for (idx = 0; idx < intc->n_words; idx++) {
@@ -257,6 +252,7 @@ static int __init bcm6345_l1_init_one(struct device_node *dn,
 	if (!cpu)
 		return -ENOMEM;
 
+	cpu->intc = intc;
 	cpu->map_base = ioremap(res.start, sz);
 	if (!cpu->map_base)
 		return -ENOMEM;
@@ -272,7 +268,7 @@ static int __init bcm6345_l1_init_one(struct device_node *dn,
 		return -EINVAL;
 	}
 	irq_set_chained_handler_and_data(cpu->parent_irq,
-						bcm6345_l1_irq_handle, intc);
+						bcm6345_l1_irq_handle, cpu);
 
 	return 0;
 }
-- 
2.40.1

[PATCH 5.15 137/155] irqchip/gic-v4.1: Properly lock VPEs when doing a directLPI invalidation

[Greg Kroah-Hartman]

From: Marc Zyngier <maz@kernel.org>

[ Upstream commit 926846a703cbf5d0635cc06e67d34b228746554b ]

We normally rely on the irq_to_cpuid_[un]lock() primitives to make
sure nothing will change col->idx while performing a LPI invalidation.

However, these primitives do not cover VPE doorbells, and we have
some open-coded locking for that. Unfortunately, this locking is
pretty bogus.

Instead, extend the above primitives to cover VPE doorbells and
convert the whole thing to it.

Fixes: f3a059219bc7 ("irqchip/gic-v4.1: Ensure mutual exclusion between vPE affinity change and RD access")
Reported-by: Kunkun Jiang <jiangkunkun@huawei.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Cc: Zenghui Yu <yuzenghui@huawei.com>
Cc: wanghaibin.wang@huawei.com
Tested-by: Kunkun Jiang <jiangkunkun@huawei.com>
Reviewed-by: Zenghui Yu <yuzenghui@huawei.com>
Link: https://lore.kernel.org/r/20230617073242.3199746-1-maz@kernel.org
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/irqchip/irq-gic-v3-its.c | 75 ++++++++++++++++++++------------
 1 file changed, 46 insertions(+), 29 deletions(-)

diff --git a/drivers/irqchip/irq-gic-v3-its.c b/drivers/irqchip/irq-gic-v3-its.c
index 59a5d06b2d3e4..490e6cfe510e6 100644
--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -267,13 +267,23 @@ static void vpe_to_cpuid_unlock(struct its_vpe *vpe, unsigned long flags)
 	raw_spin_unlock_irqrestore(&vpe->vpe_lock, flags);
 }
 
+static struct irq_chip its_vpe_irq_chip;
+
 static int irq_to_cpuid_lock(struct irq_data *d, unsigned long *flags)
 {
-	struct its_vlpi_map *map = get_vlpi_map(d);
+	struct its_vpe *vpe = NULL;
 	int cpu;
 
-	if (map) {
-		cpu = vpe_to_cpuid_lock(map->vpe, flags);
+	if (d->chip == &its_vpe_irq_chip) {
+		vpe = irq_data_get_irq_chip_data(d);
+	} else {
+		struct its_vlpi_map *map = get_vlpi_map(d);
+		if (map)
+			vpe = map->vpe;
+	}
+
+	if (vpe) {
+		cpu = vpe_to_cpuid_lock(vpe, flags);
 	} else {
 		/* Physical LPIs are already locked via the irq_desc lock */
 		struct its_device *its_dev = irq_data_get_irq_chip_data(d);
@@ -287,10 +297,18 @@ static int irq_to_cpuid_lock(struct irq_data *d, unsigned long *flags)
 
 static void irq_to_cpuid_unlock(struct irq_data *d, unsigned long flags)
 {
-	struct its_vlpi_map *map = get_vlpi_map(d);
+	struct its_vpe *vpe = NULL;
+
+	if (d->chip == &its_vpe_irq_chip) {
+		vpe = irq_data_get_irq_chip_data(d);
+	} else {
+		struct its_vlpi_map *map = get_vlpi_map(d);
+		if (map)
+			vpe = map->vpe;
+	}
 
-	if (map)
-		vpe_to_cpuid_unlock(map->vpe, flags);
+	if (vpe)
+		vpe_to_cpuid_unlock(vpe, flags);
 }
 
 static struct its_collection *valid_col(struct its_collection *col)
@@ -1427,14 +1445,29 @@ static void wait_for_syncr(void __iomem *rdbase)
 		cpu_relax();
 }
 
-static void direct_lpi_inv(struct irq_data *d)
+static void __direct_lpi_inv(struct irq_data *d, u64 val)
 {
-	struct its_vlpi_map *map = get_vlpi_map(d);
 	void __iomem *rdbase;
 	unsigned long flags;
-	u64 val;
 	int cpu;
 
+	/* Target the redistributor this LPI is currently routed to */
+	cpu = irq_to_cpuid_lock(d, &flags);
+	raw_spin_lock(&gic_data_rdist_cpu(cpu)->rd_lock);
+
+	rdbase = per_cpu_ptr(gic_rdists->rdist, cpu)->rd_base;
+	gic_write_lpir(val, rdbase + GICR_INVLPIR);
+	wait_for_syncr(rdbase);
+
+	raw_spin_unlock(&gic_data_rdist_cpu(cpu)->rd_lock);
+	irq_to_cpuid_unlock(d, flags);
+}
+
+static void direct_lpi_inv(struct irq_data *d)
+{
+	struct its_vlpi_map *map = get_vlpi_map(d);
+	u64 val;
+
 	if (map) {
 		struct its_device *its_dev = irq_data_get_irq_chip_data(d);
 
@@ -1447,15 +1480,7 @@ static void direct_lpi_inv(struct irq_data *d)
 		val = d->hwirq;
 	}
 
-	/* Target the redistributor this LPI is currently routed to */
-	cpu = irq_to_cpuid_lock(d, &flags);
-	raw_spin_lock(&gic_data_rdist_cpu(cpu)->rd_lock);
-	rdbase = per_cpu_ptr(gic_rdists->rdist, cpu)->rd_base;
-	gic_write_lpir(val, rdbase + GICR_INVLPIR);
-
-	wait_for_syncr(rdbase);
-	raw_spin_unlock(&gic_data_rdist_cpu(cpu)->rd_lock);
-	irq_to_cpuid_unlock(d, flags);
+	__direct_lpi_inv(d, val);
 }
 
 static void lpi_update_config(struct irq_data *d, u8 clr, u8 set)
@@ -3936,18 +3961,10 @@ static void its_vpe_send_inv(struct irq_data *d)
 {
 	struct its_vpe *vpe = irq_data_get_irq_chip_data(d);
 
-	if (gic_rdists->has_direct_lpi) {
-		void __iomem *rdbase;
-
-		/* Target the redistributor this VPE is currently known on */
-		raw_spin_lock(&gic_data_rdist_cpu(vpe->col_idx)->rd_lock);
-		rdbase = per_cpu_ptr(gic_rdists->rdist, vpe->col_idx)->rd_base;
-		gic_write_lpir(d->parent_data->hwirq, rdbase + GICR_INVLPIR);
-		wait_for_syncr(rdbase);
-		raw_spin_unlock(&gic_data_rdist_cpu(vpe->col_idx)->rd_lock);
-	} else {
+	if (gic_rdists->has_direct_lpi)
+		__direct_lpi_inv(d, d->parent_data->hwirq);
+	else
 		its_vpe_send_cmd(vpe, its_send_inv);
-	}
 }
 
 static void its_vpe_mask_irq(struct irq_data *d)
-- 
2.40.1

[PATCH 5.15 138/155] locking/rtmutex: Fix task->pi_waiters integrity

[Greg Kroah-Hartman]

From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit f7853c34241807bb97673a5e97719123be39a09e ]

Henry reported that rt_mutex_adjust_prio_check() has an ordering
problem and puts the lie to the comment in [7]. Sharing the sort key
between lock->waiters and owner->pi_waiters *does* create problems,
since unlike what the comment claims, holding [L] is insufficient.

Notably, consider:

	A
      /   \
     M1   M2
     |     |
     B     C

That is, task A owns both M1 and M2, B and C block on them. In this
case a concurrent chain walk (B & C) will modify their resp. sort keys
in [7] while holding M1->wait_lock and M2->wait_lock. So holding [L]
is meaningless, they're different Ls.

This then gives rise to a race condition between [7] and [11], where
the requeue of pi_waiters will observe an inconsistent tree order.

	B				C

  (holds M1->wait_lock,		(holds M2->wait_lock,
   holds B->pi_lock)		 holds A->pi_lock)

  [7]
  waiter_update_prio();
  ...
  [8]
  raw_spin_unlock(B->pi_lock);
  ...
  [10]
  raw_spin_lock(A->pi_lock);

				[11]
				rt_mutex_enqueue_pi();
				// observes inconsistent A->pi_waiters
				// tree order

Fixing this means either extending the range of the owner lock from
[10-13] to [6-13], with the immediate problem that this means [6-8]
hold both blocked and owner locks, or duplicating the sort key.

Since the locking in chain walk is horrible enough without having to
consider pi_lock nesting rules, duplicate the sort key instead.

By giving each tree their own sort key, the above race becomes
harmless, if C sees B at the old location, then B will correct things
(if they need correcting) when it walks up the chain and reaches A.

Fixes: fb00aca47440 ("rtmutex: Turn the plist into an rb-tree")
Reported-by: Henry Wu <triangletrap12@gmail.com>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Tested-by: Henry Wu <triangletrap12@gmail.com>
Link: https://lkml.kernel.org/r/20230707161052.GF2883469%40hirez.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/locking/rtmutex.c        | 170 +++++++++++++++++++++-----------
 kernel/locking/rtmutex_api.c    |   2 +-
 kernel/locking/rtmutex_common.h |  47 ++++++---
 kernel/locking/ww_mutex.h       |  12 +--
 4 files changed, 155 insertions(+), 76 deletions(-)

diff --git a/kernel/locking/rtmutex.c b/kernel/locking/rtmutex.c
index b7fa3ee3aa1de..ee5be1dda0c40 100644
--- a/kernel/locking/rtmutex.c
+++ b/kernel/locking/rtmutex.c
@@ -331,21 +331,43 @@ static __always_inline int __waiter_prio(struct task_struct *task)
 	return prio;
 }
 
+/*
+ * Update the waiter->tree copy of the sort keys.
+ */
 static __always_inline void
 waiter_update_prio(struct rt_mutex_waiter *waiter, struct task_struct *task)
 {
-	waiter->prio = __waiter_prio(task);
-	waiter->deadline = task->dl.deadline;
+	lockdep_assert_held(&waiter->lock->wait_lock);
+	lockdep_assert(RB_EMPTY_NODE(&waiter->tree.entry));
+
+	waiter->tree.prio = __waiter_prio(task);
+	waiter->tree.deadline = task->dl.deadline;
+}
+
+/*
+ * Update the waiter->pi_tree copy of the sort keys (from the tree copy).
+ */
+static __always_inline void
+waiter_clone_prio(struct rt_mutex_waiter *waiter, struct task_struct *task)
+{
+	lockdep_assert_held(&waiter->lock->wait_lock);
+	lockdep_assert_held(&task->pi_lock);
+	lockdep_assert(RB_EMPTY_NODE(&waiter->pi_tree.entry));
+
+	waiter->pi_tree.prio = waiter->tree.prio;
+	waiter->pi_tree.deadline = waiter->tree.deadline;
 }
 
 /*
- * Only use with rt_mutex_waiter_{less,equal}()
+ * Only use with rt_waiter_node_{less,equal}()
  */
+#define task_to_waiter_node(p)	\
+	&(struct rt_waiter_node){ .prio = __waiter_prio(p), .deadline = (p)->dl.deadline }
 #define task_to_waiter(p)	\
-	&(struct rt_mutex_waiter){ .prio = __waiter_prio(p), .deadline = (p)->dl.deadline }
+	&(struct rt_mutex_waiter){ .tree = *task_to_waiter_node(p) }
 
-static __always_inline int rt_mutex_waiter_less(struct rt_mutex_waiter *left,
-						struct rt_mutex_waiter *right)
+static __always_inline int rt_waiter_node_less(struct rt_waiter_node *left,
+					       struct rt_waiter_node *right)
 {
 	if (left->prio < right->prio)
 		return 1;
@@ -362,8 +384,8 @@ static __always_inline int rt_mutex_waiter_less(struct rt_mutex_waiter *left,
 	return 0;
 }
 
-static __always_inline int rt_mutex_waiter_equal(struct rt_mutex_waiter *left,
-						 struct rt_mutex_waiter *right)
+static __always_inline int rt_waiter_node_equal(struct rt_waiter_node *left,
+						 struct rt_waiter_node *right)
 {
 	if (left->prio != right->prio)
 		return 0;
@@ -383,7 +405,7 @@ static __always_inline int rt_mutex_waiter_equal(struct rt_mutex_waiter *left,
 static inline bool rt_mutex_steal(struct rt_mutex_waiter *waiter,
 				  struct rt_mutex_waiter *top_waiter)
 {
-	if (rt_mutex_waiter_less(waiter, top_waiter))
+	if (rt_waiter_node_less(&waiter->tree, &top_waiter->tree))
 		return true;
 
 #ifdef RT_MUTEX_BUILD_SPINLOCKS
@@ -391,30 +413,30 @@ static inline bool rt_mutex_steal(struct rt_mutex_waiter *waiter,
 	 * Note that RT tasks are excluded from same priority (lateral)
 	 * steals to prevent the introduction of an unbounded latency.
 	 */
-	if (rt_prio(waiter->prio) || dl_prio(waiter->prio))
+	if (rt_prio(waiter->tree.prio) || dl_prio(waiter->tree.prio))
 		return false;
 
-	return rt_mutex_waiter_equal(waiter, top_waiter);
+	return rt_waiter_node_equal(&waiter->tree, &top_waiter->tree);
 #else
 	return false;
 #endif
 }
 
 #define __node_2_waiter(node) \
-	rb_entry((node), struct rt_mutex_waiter, tree_entry)
+	rb_entry((node), struct rt_mutex_waiter, tree.entry)
 
 static __always_inline bool __waiter_less(struct rb_node *a, const struct rb_node *b)
 {
 	struct rt_mutex_waiter *aw = __node_2_waiter(a);
 	struct rt_mutex_waiter *bw = __node_2_waiter(b);
 
-	if (rt_mutex_waiter_less(aw, bw))
+	if (rt_waiter_node_less(&aw->tree, &bw->tree))
 		return 1;
 
 	if (!build_ww_mutex())
 		return 0;
 
-	if (rt_mutex_waiter_less(bw, aw))
+	if (rt_waiter_node_less(&bw->tree, &aw->tree))
 		return 0;
 
 	/* NOTE: relies on waiter->ww_ctx being set before insertion */
@@ -432,48 +454,58 @@ static __always_inline bool __waiter_less(struct rb_node *a, const struct rb_nod
 static __always_inline void
 rt_mutex_enqueue(struct rt_mutex_base *lock, struct rt_mutex_waiter *waiter)
 {
-	rb_add_cached(&waiter->tree_entry, &lock->waiters, __waiter_less);
+	lockdep_assert_held(&lock->wait_lock);
+
+	rb_add_cached(&waiter->tree.entry, &lock->waiters, __waiter_less);
 }
 
 static __always_inline void
 rt_mutex_dequeue(struct rt_mutex_base *lock, struct rt_mutex_waiter *waiter)
 {
-	if (RB_EMPTY_NODE(&waiter->tree_entry))
+	lockdep_assert_held(&lock->wait_lock);
+
+	if (RB_EMPTY_NODE(&waiter->tree.entry))
 		return;
 
-	rb_erase_cached(&waiter->tree_entry, &lock->waiters);
-	RB_CLEAR_NODE(&waiter->tree_entry);
+	rb_erase_cached(&waiter->tree.entry, &lock->waiters);
+	RB_CLEAR_NODE(&waiter->tree.entry);
 }
 
-#define __node_2_pi_waiter(node) \
-	rb_entry((node), struct rt_mutex_waiter, pi_tree_entry)
+#define __node_2_rt_node(node) \
+	rb_entry((node), struct rt_waiter_node, entry)
 
-static __always_inline bool
-__pi_waiter_less(struct rb_node *a, const struct rb_node *b)
+static __always_inline bool __pi_waiter_less(struct rb_node *a, const struct rb_node *b)
 {
-	return rt_mutex_waiter_less(__node_2_pi_waiter(a), __node_2_pi_waiter(b));
+	return rt_waiter_node_less(__node_2_rt_node(a), __node_2_rt_node(b));
 }
 
 static __always_inline void
 rt_mutex_enqueue_pi(struct task_struct *task, struct rt_mutex_waiter *waiter)
 {
-	rb_add_cached(&waiter->pi_tree_entry, &task->pi_waiters, __pi_waiter_less);
+	lockdep_assert_held(&task->pi_lock);
+
+	rb_add_cached(&waiter->pi_tree.entry, &task->pi_waiters, __pi_waiter_less);
 }
 
 static __always_inline void
 rt_mutex_dequeue_pi(struct task_struct *task, struct rt_mutex_waiter *waiter)
 {
-	if (RB_EMPTY_NODE(&waiter->pi_tree_entry))
+	lockdep_assert_held(&task->pi_lock);
+
+	if (RB_EMPTY_NODE(&waiter->pi_tree.entry))
 		return;
 
-	rb_erase_cached(&waiter->pi_tree_entry, &task->pi_waiters);
-	RB_CLEAR_NODE(&waiter->pi_tree_entry);
+	rb_erase_cached(&waiter->pi_tree.entry, &task->pi_waiters);
+	RB_CLEAR_NODE(&waiter->pi_tree.entry);
 }
 
-static __always_inline void rt_mutex_adjust_prio(struct task_struct *p)
+static __always_inline void rt_mutex_adjust_prio(struct rt_mutex_base *lock,
+						 struct task_struct *p)
 {
 	struct task_struct *pi_task = NULL;
 
+	lockdep_assert_held(&lock->wait_lock);
+	lockdep_assert(rt_mutex_owner(lock) == p);
 	lockdep_assert_held(&p->pi_lock);
 
 	if (task_has_pi_waiters(p))
@@ -562,9 +594,14 @@ static __always_inline struct rt_mutex_base *task_blocked_on_lock(struct task_st
  * Chain walk basics and protection scope
  *
  * [R] refcount on task
- * [P] task->pi_lock held
+ * [Pn] task->pi_lock held
  * [L] rtmutex->wait_lock held
  *
+ * Normal locking order:
+ *
+ *   rtmutex->wait_lock
+ *     task->pi_lock
+ *
  * Step	Description				Protected by
  *	function arguments:
  *	@task					[R]
@@ -579,27 +616,32 @@ static __always_inline struct rt_mutex_base *task_blocked_on_lock(struct task_st
  *	again:
  *	  loop_sanity_check();
  *	retry:
- * [1]	  lock(task->pi_lock);			[R] acquire [P]
- * [2]	  waiter = task->pi_blocked_on;		[P]
- * [3]	  check_exit_conditions_1();		[P]
- * [4]	  lock = waiter->lock;			[P]
- * [5]	  if (!try_lock(lock->wait_lock)) {	[P] try to acquire [L]
- *	    unlock(task->pi_lock);		release [P]
+ * [1]	  lock(task->pi_lock);			[R] acquire [P1]
+ * [2]	  waiter = task->pi_blocked_on;		[P1]
+ * [3]	  check_exit_conditions_1();		[P1]
+ * [4]	  lock = waiter->lock;			[P1]
+ * [5]	  if (!try_lock(lock->wait_lock)) {	[P1] try to acquire [L]
+ *	    unlock(task->pi_lock);		release [P1]
  *	    goto retry;
  *	  }
- * [6]	  check_exit_conditions_2();		[P] + [L]
- * [7]	  requeue_lock_waiter(lock, waiter);	[P] + [L]
- * [8]	  unlock(task->pi_lock);		release [P]
+ * [6]	  check_exit_conditions_2();		[P1] + [L]
+ * [7]	  requeue_lock_waiter(lock, waiter);	[P1] + [L]
+ * [8]	  unlock(task->pi_lock);		release [P1]
  *	  put_task_struct(task);		release [R]
  * [9]	  check_exit_conditions_3();		[L]
  * [10]	  task = owner(lock);			[L]
  *	  get_task_struct(task);		[L] acquire [R]
- *	  lock(task->pi_lock);			[L] acquire [P]
- * [11]	  requeue_pi_waiter(tsk, waiters(lock));[P] + [L]
- * [12]	  check_exit_conditions_4();		[P] + [L]
- * [13]	  unlock(task->pi_lock);		release [P]
+ *	  lock(task->pi_lock);			[L] acquire [P2]
+ * [11]	  requeue_pi_waiter(tsk, waiters(lock));[P2] + [L]
+ * [12]	  check_exit_conditions_4();		[P2] + [L]
+ * [13]	  unlock(task->pi_lock);		release [P2]
  *	  unlock(lock->wait_lock);		release [L]
  *	  goto again;
+ *
+ * Where P1 is the blocking task and P2 is the lock owner; going up one step
+ * the owner becomes the next blocked task etc..
+ *
+*
  */
 static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 					      enum rtmutex_chainwalk chwalk,
@@ -747,7 +789,7 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 	 * enabled we continue, but stop the requeueing in the chain
 	 * walk.
 	 */
-	if (rt_mutex_waiter_equal(waiter, task_to_waiter(task))) {
+	if (rt_waiter_node_equal(&waiter->tree, task_to_waiter_node(task))) {
 		if (!detect_deadlock)
 			goto out_unlock_pi;
 		else
@@ -755,13 +797,18 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 	}
 
 	/*
-	 * [4] Get the next lock
+	 * [4] Get the next lock; per holding task->pi_lock we can't unblock
+	 * and guarantee @lock's existence.
 	 */
 	lock = waiter->lock;
 	/*
 	 * [5] We need to trylock here as we are holding task->pi_lock,
 	 * which is the reverse lock order versus the other rtmutex
 	 * operations.
+	 *
+	 * Per the above, holding task->pi_lock guarantees lock exists, so
+	 * inverting this lock order is infeasible from a life-time
+	 * perspective.
 	 */
 	if (!raw_spin_trylock(&lock->wait_lock)) {
 		raw_spin_unlock_irq(&task->pi_lock);
@@ -865,17 +912,18 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 	 * or
 	 *
 	 *   DL CBS enforcement advancing the effective deadline.
-	 *
-	 * Even though pi_waiters also uses these fields, and that tree is only
-	 * updated in [11], we can do this here, since we hold [L], which
-	 * serializes all pi_waiters access and rb_erase() does not care about
-	 * the values of the node being removed.
 	 */
 	waiter_update_prio(waiter, task);
 
 	rt_mutex_enqueue(lock, waiter);
 
-	/* [8] Release the task */
+	/*
+	 * [8] Release the (blocking) task in preparation for
+	 * taking the owner task in [10].
+	 *
+	 * Since we hold lock->waiter_lock, task cannot unblock, even if we
+	 * release task->pi_lock.
+	 */
 	raw_spin_unlock(&task->pi_lock);
 	put_task_struct(task);
 
@@ -899,7 +947,12 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 		return 0;
 	}
 
-	/* [10] Grab the next task, i.e. the owner of @lock */
+	/*
+	 * [10] Grab the next task, i.e. the owner of @lock
+	 *
+	 * Per holding lock->wait_lock and checking for !owner above, there
+	 * must be an owner and it cannot go away.
+	 */
 	task = get_task_struct(rt_mutex_owner(lock));
 	raw_spin_lock(&task->pi_lock);
 
@@ -912,8 +965,9 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 		 * and adjust the priority of the owner.
 		 */
 		rt_mutex_dequeue_pi(task, prerequeue_top_waiter);
+		waiter_clone_prio(waiter, task);
 		rt_mutex_enqueue_pi(task, waiter);
-		rt_mutex_adjust_prio(task);
+		rt_mutex_adjust_prio(lock, task);
 
 	} else if (prerequeue_top_waiter == waiter) {
 		/*
@@ -928,8 +982,9 @@ static int __sched rt_mutex_adjust_prio_chain(struct task_struct *task,
 		 */
 		rt_mutex_dequeue_pi(task, waiter);
 		waiter = rt_mutex_top_waiter(lock);
+		waiter_clone_prio(waiter, task);
 		rt_mutex_enqueue_pi(task, waiter);
-		rt_mutex_adjust_prio(task);
+		rt_mutex_adjust_prio(lock, task);
 	} else {
 		/*
 		 * Nothing changed. No need to do any priority
@@ -1142,6 +1197,7 @@ static int __sched task_blocks_on_rt_mutex(struct rt_mutex_base *lock,
 	waiter->task = task;
 	waiter->lock = lock;
 	waiter_update_prio(waiter, task);
+	waiter_clone_prio(waiter, task);
 
 	/* Get the top priority waiter on the lock */
 	if (rt_mutex_has_waiters(lock))
@@ -1175,7 +1231,7 @@ static int __sched task_blocks_on_rt_mutex(struct rt_mutex_base *lock,
 		rt_mutex_dequeue_pi(owner, top_waiter);
 		rt_mutex_enqueue_pi(owner, waiter);
 
-		rt_mutex_adjust_prio(owner);
+		rt_mutex_adjust_prio(lock, owner);
 		if (owner->pi_blocked_on)
 			chain_walk = 1;
 	} else if (rt_mutex_cond_detect_deadlock(waiter, chwalk)) {
@@ -1222,6 +1278,8 @@ static void __sched mark_wakeup_next_waiter(struct rt_wake_q_head *wqh,
 {
 	struct rt_mutex_waiter *waiter;
 
+	lockdep_assert_held(&lock->wait_lock);
+
 	raw_spin_lock(&current->pi_lock);
 
 	waiter = rt_mutex_top_waiter(lock);
@@ -1234,7 +1292,7 @@ static void __sched mark_wakeup_next_waiter(struct rt_wake_q_head *wqh,
 	 * task unblocks.
 	 */
 	rt_mutex_dequeue_pi(current, waiter);
-	rt_mutex_adjust_prio(current);
+	rt_mutex_adjust_prio(lock, current);
 
 	/*
 	 * As we are waking up the top waiter, and the waiter stays
@@ -1471,7 +1529,7 @@ static void __sched remove_waiter(struct rt_mutex_base *lock,
 	if (rt_mutex_has_waiters(lock))
 		rt_mutex_enqueue_pi(owner, rt_mutex_top_waiter(lock));
 
-	rt_mutex_adjust_prio(owner);
+	rt_mutex_adjust_prio(lock, owner);
 
 	/* Store the lock on which owner is blocked or NULL */
 	next_lock = task_blocked_on_lock(owner);
diff --git a/kernel/locking/rtmutex_api.c b/kernel/locking/rtmutex_api.c
index a461be2f873db..56d1938cb52a1 100644
--- a/kernel/locking/rtmutex_api.c
+++ b/kernel/locking/rtmutex_api.c
@@ -437,7 +437,7 @@ void __sched rt_mutex_adjust_pi(struct task_struct *task)
 	raw_spin_lock_irqsave(&task->pi_lock, flags);
 
 	waiter = task->pi_blocked_on;
-	if (!waiter || rt_mutex_waiter_equal(waiter, task_to_waiter(task))) {
+	if (!waiter || rt_waiter_node_equal(&waiter->tree, task_to_waiter_node(task))) {
 		raw_spin_unlock_irqrestore(&task->pi_lock, flags);
 		return;
 	}
diff --git a/kernel/locking/rtmutex_common.h b/kernel/locking/rtmutex_common.h
index c47e8361bfb5c..1162e07cdaea1 100644
--- a/kernel/locking/rtmutex_common.h
+++ b/kernel/locking/rtmutex_common.h
@@ -17,27 +17,44 @@
 #include <linux/rtmutex.h>
 #include <linux/sched/wake_q.h>
 
+
+/*
+ * This is a helper for the struct rt_mutex_waiter below. A waiter goes in two
+ * separate trees and they need their own copy of the sort keys because of
+ * different locking requirements.
+ *
+ * @entry:		rbtree node to enqueue into the waiters tree
+ * @prio:		Priority of the waiter
+ * @deadline:		Deadline of the waiter if applicable
+ *
+ * See rt_waiter_node_less() and waiter_*_prio().
+ */
+struct rt_waiter_node {
+	struct rb_node	entry;
+	int		prio;
+	u64		deadline;
+};
+
 /*
  * This is the control structure for tasks blocked on a rt_mutex,
  * which is allocated on the kernel stack on of the blocked task.
  *
- * @tree_entry:		pi node to enqueue into the mutex waiters tree
- * @pi_tree_entry:	pi node to enqueue into the mutex owner waiters tree
+ * @tree:		node to enqueue into the mutex waiters tree
+ * @pi_tree:		node to enqueue into the mutex owner waiters tree
  * @task:		task reference to the blocked task
  * @lock:		Pointer to the rt_mutex on which the waiter blocks
  * @wake_state:		Wakeup state to use (TASK_NORMAL or TASK_RTLOCK_WAIT)
- * @prio:		Priority of the waiter
- * @deadline:		Deadline of the waiter if applicable
  * @ww_ctx:		WW context pointer
+ *
+ * @tree is ordered by @lock->wait_lock
+ * @pi_tree is ordered by rt_mutex_owner(@lock)->pi_lock
  */
 struct rt_mutex_waiter {
-	struct rb_node		tree_entry;
-	struct rb_node		pi_tree_entry;
+	struct rt_waiter_node	tree;
+	struct rt_waiter_node	pi_tree;
 	struct task_struct	*task;
 	struct rt_mutex_base	*lock;
 	unsigned int		wake_state;
-	int			prio;
-	u64			deadline;
 	struct ww_acquire_ctx	*ww_ctx;
 };
 
@@ -105,7 +122,7 @@ static inline bool rt_mutex_waiter_is_top_waiter(struct rt_mutex_base *lock,
 {
 	struct rb_node *leftmost = rb_first_cached(&lock->waiters);
 
-	return rb_entry(leftmost, struct rt_mutex_waiter, tree_entry) == waiter;
+	return rb_entry(leftmost, struct rt_mutex_waiter, tree.entry) == waiter;
 }
 
 static inline struct rt_mutex_waiter *rt_mutex_top_waiter(struct rt_mutex_base *lock)
@@ -113,8 +130,10 @@ static inline struct rt_mutex_waiter *rt_mutex_top_waiter(struct rt_mutex_base *
 	struct rb_node *leftmost = rb_first_cached(&lock->waiters);
 	struct rt_mutex_waiter *w = NULL;
 
+	lockdep_assert_held(&lock->wait_lock);
+
 	if (leftmost) {
-		w = rb_entry(leftmost, struct rt_mutex_waiter, tree_entry);
+		w = rb_entry(leftmost, struct rt_mutex_waiter, tree.entry);
 		BUG_ON(w->lock != lock);
 	}
 	return w;
@@ -127,8 +146,10 @@ static inline int task_has_pi_waiters(struct task_struct *p)
 
 static inline struct rt_mutex_waiter *task_top_pi_waiter(struct task_struct *p)
 {
+	lockdep_assert_held(&p->pi_lock);
+
 	return rb_entry(p->pi_waiters.rb_leftmost, struct rt_mutex_waiter,
-			pi_tree_entry);
+			pi_tree.entry);
 }
 
 #define RT_MUTEX_HAS_WAITERS	1UL
@@ -190,8 +211,8 @@ static inline void debug_rt_mutex_free_waiter(struct rt_mutex_waiter *waiter)
 static inline void rt_mutex_init_waiter(struct rt_mutex_waiter *waiter)
 {
 	debug_rt_mutex_init_waiter(waiter);
-	RB_CLEAR_NODE(&waiter->pi_tree_entry);
-	RB_CLEAR_NODE(&waiter->tree_entry);
+	RB_CLEAR_NODE(&waiter->pi_tree.entry);
+	RB_CLEAR_NODE(&waiter->tree.entry);
 	waiter->wake_state = TASK_NORMAL;
 	waiter->task = NULL;
 }
diff --git a/kernel/locking/ww_mutex.h b/kernel/locking/ww_mutex.h
index 56f139201f246..3ad2cc4823e59 100644
--- a/kernel/locking/ww_mutex.h
+++ b/kernel/locking/ww_mutex.h
@@ -96,25 +96,25 @@ __ww_waiter_first(struct rt_mutex *lock)
 	struct rb_node *n = rb_first(&lock->rtmutex.waiters.rb_root);
 	if (!n)
 		return NULL;
-	return rb_entry(n, struct rt_mutex_waiter, tree_entry);
+	return rb_entry(n, struct rt_mutex_waiter, tree.entry);
 }
 
 static inline struct rt_mutex_waiter *
 __ww_waiter_next(struct rt_mutex *lock, struct rt_mutex_waiter *w)
 {
-	struct rb_node *n = rb_next(&w->tree_entry);
+	struct rb_node *n = rb_next(&w->tree.entry);
 	if (!n)
 		return NULL;
-	return rb_entry(n, struct rt_mutex_waiter, tree_entry);
+	return rb_entry(n, struct rt_mutex_waiter, tree.entry);
 }
 
 static inline struct rt_mutex_waiter *
 __ww_waiter_prev(struct rt_mutex *lock, struct rt_mutex_waiter *w)
 {
-	struct rb_node *n = rb_prev(&w->tree_entry);
+	struct rb_node *n = rb_prev(&w->tree.entry);
 	if (!n)
 		return NULL;
-	return rb_entry(n, struct rt_mutex_waiter, tree_entry);
+	return rb_entry(n, struct rt_mutex_waiter, tree.entry);
 }
 
 static inline struct rt_mutex_waiter *
@@ -123,7 +123,7 @@ __ww_waiter_last(struct rt_mutex *lock)
 	struct rb_node *n = rb_last(&lock->rtmutex.waiters.rb_root);
 	if (!n)
 		return NULL;
-	return rb_entry(n, struct rt_mutex_waiter, tree_entry);
+	return rb_entry(n, struct rt_mutex_waiter, tree.entry);
 }
 
 static inline void
-- 
2.40.1

[PATCH 5.15 139/155] KVM: x86: Disallow KVM_SET_SREGS{2} if incoming CR0 is invalid

[Greg Kroah-Hartman]

From: Sean Christopherson <seanjc@google.com>

[ Upstream commit 26a0652cb453c72f6aab0974bc4939e9b14f886b ]

Reject KVM_SET_SREGS{2} with -EINVAL if the incoming CR0 is invalid,
e.g. due to setting bits 63:32, illegal combinations, or to a value that
isn't allowed in VMX (non-)root mode.  The VMX checks in particular are
"fun" as failure to disallow Real Mode for an L2 that is configured with
unrestricted guest disabled, when KVM itself has unrestricted guest
enabled, will result in KVM forcing VM86 mode to virtual Real Mode for
L2, but then fail to unwind the related metadata when synthesizing a
nested VM-Exit back to L1 (which has unrestricted guest enabled).

Opportunistically fix a benign typo in the prototype for is_valid_cr4().

Cc: stable@vger.kernel.org
Reported-by: syzbot+5feef0b9ee9c8e9e5689@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/all/000000000000f316b705fdf6e2b4@google.com
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20230613203037.1968489-2-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/kvm-x86-ops.h |  1 +
 arch/x86/include/asm/kvm_host.h    |  3 ++-
 arch/x86/kvm/svm/svm.c             |  6 ++++++
 arch/x86/kvm/vmx/vmx.c             | 28 ++++++++++++++++++------
 arch/x86/kvm/x86.c                 | 34 +++++++++++++++++++-----------
 5 files changed, 52 insertions(+), 20 deletions(-)

diff --git a/arch/x86/include/asm/kvm-x86-ops.h b/arch/x86/include/asm/kvm-x86-ops.h
index 23ea8a25cbbeb..4bdcb91478a51 100644
--- a/arch/x86/include/asm/kvm-x86-ops.h
+++ b/arch/x86/include/asm/kvm-x86-ops.h
@@ -34,6 +34,7 @@ KVM_X86_OP(get_segment)
 KVM_X86_OP(get_cpl)
 KVM_X86_OP(set_segment)
 KVM_X86_OP_NULL(get_cs_db_l_bits)
+KVM_X86_OP(is_valid_cr0)
 KVM_X86_OP(set_cr0)
 KVM_X86_OP(is_valid_cr4)
 KVM_X86_OP(set_cr4)
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 9e800d4d323c6..08cfc26ee7c67 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -1333,8 +1333,9 @@ struct kvm_x86_ops {
 	void (*set_segment)(struct kvm_vcpu *vcpu,
 			    struct kvm_segment *var, int seg);
 	void (*get_cs_db_l_bits)(struct kvm_vcpu *vcpu, int *db, int *l);
+	bool (*is_valid_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
 	void (*set_cr0)(struct kvm_vcpu *vcpu, unsigned long cr0);
-	bool (*is_valid_cr4)(struct kvm_vcpu *vcpu, unsigned long cr0);
+	bool (*is_valid_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
 	void (*set_cr4)(struct kvm_vcpu *vcpu, unsigned long cr4);
 	int (*set_efer)(struct kvm_vcpu *vcpu, u64 efer);
 	void (*get_idt)(struct kvm_vcpu *vcpu, struct desc_ptr *dt);
diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c
index 0611dac70c25c..302a4669c5a15 100644
--- a/arch/x86/kvm/svm/svm.c
+++ b/arch/x86/kvm/svm/svm.c
@@ -1734,6 +1734,11 @@ static void svm_set_gdt(struct kvm_vcpu *vcpu, struct desc_ptr *dt)
 	vmcb_mark_dirty(svm->vmcb, VMCB_DT);
 }
 
+static bool svm_is_valid_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
+{
+	return true;
+}
+
 void svm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 {
 	struct vcpu_svm *svm = to_svm(vcpu);
@@ -4596,6 +4601,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
 	.set_segment = svm_set_segment,
 	.get_cpl = svm_get_cpl,
 	.get_cs_db_l_bits = kvm_get_cs_db_l_bits,
+	.is_valid_cr0 = svm_is_valid_cr0,
 	.set_cr0 = svm_set_cr0,
 	.is_valid_cr4 = svm_is_valid_cr4,
 	.set_cr4 = svm_set_cr4,
diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index 0841f9a34d1c2..89744ee06101a 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -2894,6 +2894,15 @@ static void enter_rmode(struct kvm_vcpu *vcpu)
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
 	struct kvm_vmx *kvm_vmx = to_kvm_vmx(vcpu->kvm);
 
+	/*
+	 * KVM should never use VM86 to virtualize Real Mode when L2 is active,
+	 * as using VM86 is unnecessary if unrestricted guest is enabled, and
+	 * if unrestricted guest is disabled, VM-Enter (from L1) with CR0.PG=0
+	 * should VM-Fail and KVM should reject userspace attempts to stuff
+	 * CR0.PG=0 when L2 is active.
+	 */
+	WARN_ON_ONCE(is_guest_mode(vcpu));
+
 	vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_TR], VCPU_SREG_TR);
 	vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_ES], VCPU_SREG_ES);
 	vmx_get_segment(vcpu, &vmx->rmode.segs[VCPU_SREG_DS], VCPU_SREG_DS);
@@ -3084,6 +3093,17 @@ void ept_save_pdptrs(struct kvm_vcpu *vcpu)
 #define CR3_EXITING_BITS (CPU_BASED_CR3_LOAD_EXITING | \
 			  CPU_BASED_CR3_STORE_EXITING)
 
+static bool vmx_is_valid_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
+{
+	if (is_guest_mode(vcpu))
+		return nested_guest_cr0_valid(vcpu, cr0);
+
+	if (to_vmx(vcpu)->nested.vmxon)
+		return nested_host_cr0_valid(vcpu, cr0);
+
+	return true;
+}
+
 void vmx_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 {
 	struct vcpu_vmx *vmx = to_vmx(vcpu);
@@ -5027,18 +5047,11 @@ static int handle_set_cr0(struct kvm_vcpu *vcpu, unsigned long val)
 		val = (val & ~vmcs12->cr0_guest_host_mask) |
 			(vmcs12->guest_cr0 & vmcs12->cr0_guest_host_mask);
 
-		if (!nested_guest_cr0_valid(vcpu, val))
-			return 1;
-
 		if (kvm_set_cr0(vcpu, val))
 			return 1;
 		vmcs_writel(CR0_READ_SHADOW, orig_val);
 		return 0;
 	} else {
-		if (to_vmx(vcpu)->nested.vmxon &&
-		    !nested_host_cr0_valid(vcpu, val))
-			return 1;
-
 		return kvm_set_cr0(vcpu, val);
 	}
 }
@@ -7744,6 +7757,7 @@ static struct kvm_x86_ops vmx_x86_ops __initdata = {
 	.set_segment = vmx_set_segment,
 	.get_cpl = vmx_get_cpl,
 	.get_cs_db_l_bits = vmx_get_cs_db_l_bits,
+	.is_valid_cr0 = vmx_is_valid_cr0,
 	.set_cr0 = vmx_set_cr0,
 	.is_valid_cr4 = vmx_is_valid_cr4,
 	.set_cr4 = vmx_set_cr4,
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 7e1e3bc745622..285ba12be8ce3 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -876,6 +876,22 @@ int load_pdptrs(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu, unsigned long cr3)
 }
 EXPORT_SYMBOL_GPL(load_pdptrs);
 
+static bool kvm_is_valid_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
+{
+#ifdef CONFIG_X86_64
+	if (cr0 & 0xffffffff00000000UL)
+		return false;
+#endif
+
+	if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD))
+		return false;
+
+	if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE))
+		return false;
+
+	return static_call(kvm_x86_is_valid_cr0)(vcpu, cr0);
+}
+
 void kvm_post_set_cr0(struct kvm_vcpu *vcpu, unsigned long old_cr0, unsigned long cr0)
 {
 	if ((cr0 ^ old_cr0) & X86_CR0_PG) {
@@ -898,20 +914,13 @@ int kvm_set_cr0(struct kvm_vcpu *vcpu, unsigned long cr0)
 	unsigned long old_cr0 = kvm_read_cr0(vcpu);
 	unsigned long pdptr_bits = X86_CR0_CD | X86_CR0_NW | X86_CR0_PG;
 
-	cr0 |= X86_CR0_ET;
-
-#ifdef CONFIG_X86_64
-	if (cr0 & 0xffffffff00000000UL)
+	if (!kvm_is_valid_cr0(vcpu, cr0))
 		return 1;
-#endif
-
-	cr0 &= ~CR0_RESERVED_BITS;
 
-	if ((cr0 & X86_CR0_NW) && !(cr0 & X86_CR0_CD))
-		return 1;
+	cr0 |= X86_CR0_ET;
 
-	if ((cr0 & X86_CR0_PG) && !(cr0 & X86_CR0_PE))
-		return 1;
+	/* Write to CR0 reserved bits are ignored, even on Intel. */
+	cr0 &= ~CR0_RESERVED_BITS;
 
 #ifdef CONFIG_X86_64
 	if ((vcpu->arch.efer & EFER_LME) && !is_paging(vcpu) &&
@@ -10643,7 +10652,8 @@ static bool kvm_is_valid_sregs(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs)
 			return false;
 	}
 
-	return kvm_is_valid_cr4(vcpu, sregs->cr4);
+	return kvm_is_valid_cr4(vcpu, sregs->cr4) &&
+	       kvm_is_valid_cr0(vcpu, sregs->cr0);
 }
 
 static int __set_sregs_common(struct kvm_vcpu *vcpu, struct kvm_sregs *sregs,
-- 
2.40.1

[PATCH 5.15 140/155] virtio-net: fix race between set queues and probe

[Greg Kroah-Hartman]

From: Jason Wang <jasowang@redhat.com>

commit 25266128fe16d5632d43ada34c847d7b8daba539 upstream.

A race were found where set_channels could be called after registering
but before virtnet_set_queues() in virtnet_probe(). Fixing this by
moving the virtnet_set_queues() before netdevice registering. While at
it, use _virtnet_set_queues() to avoid holding rtnl as the device is
not even registered at that time.

Cc: stable@vger.kernel.org
Fixes: a220871be66f ("virtio-net: correctly enable multiqueue")
Signed-off-by: Jason Wang <jasowang@redhat.com>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20230725072049.617289-1-jasowang@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/virtio_net.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -3319,6 +3319,8 @@ static int virtnet_probe(struct virtio_d
 		}
 	}
 
+	_virtnet_set_queues(vi, vi->curr_queue_pairs);
+
 	/* serialize netdev register + virtio_device_ready() with ndo_open() */
 	rtnl_lock();
 
@@ -3339,8 +3341,6 @@ static int virtnet_probe(struct virtio_d
 		goto free_unregister_netdev;
 	}
 
-	virtnet_set_queues(vi, vi->curr_queue_pairs);
-
 	/* Assume link up if device can't report link status,
 	   otherwise get link status from config. */
 	netif_carrier_off(dev);

[PATCH 5.15 141/155] s390/dasd: fix hanging device after quiesce/resume

[Greg Kroah-Hartman]

From: Stefan Haberland <sth@linux.ibm.com>

commit 05f1d8ed03f547054efbc4d29bb7991c958ede95 upstream.

Quiesce and resume are functions that tell the DASD driver to stop/resume
issuing I/Os to a specific DASD.

On resume dasd_schedule_block_bh() is called to kick handling of IO
requests again. This does unfortunately not cover internal requests which
are used for path verification for example.

This could lead to a hanging device when a path event or anything else
that triggers internal requests occurs on a quiesced device.

Fix by also calling dasd_schedule_device_bh() which triggers handling of
internal requests on resume.

Fixes: 8e09f21574ea ("[S390] dasd: add hyper PAV support to DASD device driver, part 1")

Cc: stable@vger.kernel.org
Signed-off-by: Stefan Haberland <sth@linux.ibm.com>
Reviewed-by: Jan Hoeppner <hoeppner@linux.ibm.com>
Link: https://lore.kernel.org/r/20230721193647.3889634-2-sth@linux.ibm.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/s390/block/dasd_ioctl.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/s390/block/dasd_ioctl.c
+++ b/drivers/s390/block/dasd_ioctl.c
@@ -131,6 +131,7 @@ static int dasd_ioctl_resume(struct dasd
 	spin_unlock_irqrestore(get_ccwdev_lock(base->cdev), flags);
 
 	dasd_schedule_block_bh(block);
+	dasd_schedule_device_bh(base);
 	return 0;
 }
 

[PATCH 5.15 142/155] ASoC: wm8904: Fill the cache for WM8904_ADC_TEST_0 register

[Greg Kroah-Hartman]

From: Mark Brown <broonie@kernel.org>

commit f061e2be8689057cb4ec0dbffa9f03e1a23cdcb2 upstream.

The WM8904_ADC_TEST_0 register is modified as part of updating the OSR
controls but does not have a cache default, leading to errors when we try
to modify these controls in cache only mode with no prior read:

wm8904 3-001a: ASoC: error at snd_soc_component_update_bits on wm8904.3-001a for register: [0x000000c6] -16

Add a read of the register to probe() to fill the cache and avoid both the
error messages and the misconfiguration of the chip which will result.

Acked-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20230723-asoc-fix-wm8904-adc-test-read-v1-1-2cdf2edd83fd@kernel.org
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/wm8904.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/sound/soc/codecs/wm8904.c
+++ b/sound/soc/codecs/wm8904.c
@@ -2306,6 +2306,9 @@ static int wm8904_i2c_probe(struct i2c_c
 	regmap_update_bits(wm8904->regmap, WM8904_BIAS_CONTROL_0,
 			    WM8904_POBCTRL, 0);
 
+	/* Fill the cache for the ADC test register */
+	regmap_read(wm8904->regmap, WM8904_ADC_TEST_0, &val);
+
 	/* Can leave the device powered off until we need it */
 	regcache_cache_only(wm8904->regmap, true);
 	regulator_bulk_disable(ARRAY_SIZE(wm8904->supplies), wm8904->supplies);

[PATCH 5.15 143/155] ceph: never send metrics if disable_send_metrics is set

[Greg Kroah-Hartman]

From: Xiubo Li <xiubli@redhat.com>

commit 50164507f6b7b7ed85d8c3ac0266849fbd908db7 upstream.

Even the 'disable_send_metrics' is true so when the session is
being opened it will always trigger to send the metric for the
first time.

Cc: stable@vger.kernel.org
Signed-off-by: Xiubo Li <xiubli@redhat.com>
Reviewed-by: Venky Shankar <vshankar@redhat.com>
Reviewed-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/ceph/metric.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/fs/ceph/metric.c
+++ b/fs/ceph/metric.c
@@ -202,7 +202,7 @@ static void metric_delayed_work(struct w
 	struct ceph_mds_client *mdsc =
 		container_of(m, struct ceph_mds_client, metric);
 
-	if (mdsc->stopping)
+	if (mdsc->stopping || disable_send_metrics)
 		return;
 
 	if (!m->session || !check_session_state(m->session)) {

[PATCH 5.15 144/155] dm cache policy smq: ensure IO doesnt prevent cleaner policy progress

[Greg Kroah-Hartman]

From: Joe Thornber <ejt@redhat.com>

commit 1e4ab7b4c881cf26c1c72b3f56519e03475486fb upstream.

When using the cleaner policy to decommission the cache, there is
never any writeback started from the cache as it is constantly delayed
due to normal I/O keeping the device busy. Meaning @idle=false was
always being passed to clean_target_met()

Fix this by adding a specific 'cleaner' flag that is set when the
cleaner policy is configured. This flag serves to always allow the
cleaner's writeback work to be queued until the cache is
decommissioned (even if the cache isn't idle).

Reported-by: David Jeffery <djeffery@redhat.com>
Fixes: b29d4986d0da ("dm cache: significant rework to leverage dm-bio-prison-v2")
Cc: stable@vger.kernel.org
Signed-off-by: Joe Thornber <ejt@redhat.com>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/md/dm-cache-policy-smq.c |   28 ++++++++++++++++++----------
 1 file changed, 18 insertions(+), 10 deletions(-)

--- a/drivers/md/dm-cache-policy-smq.c
+++ b/drivers/md/dm-cache-policy-smq.c
@@ -854,7 +854,13 @@ struct smq_policy {
 
 	struct background_tracker *bg_work;
 
-	bool migrations_allowed;
+	bool migrations_allowed:1;
+
+	/*
+	 * If this is set the policy will try and clean the whole cache
+	 * even if the device is not idle.
+	 */
+	bool cleaner:1;
 };
 
 /*----------------------------------------------------------------*/
@@ -1133,7 +1139,7 @@ static bool clean_target_met(struct smq_
 	 * Cache entries may not be populated.  So we cannot rely on the
 	 * size of the clean queue.
 	 */
-	if (idle) {
+	if (idle || mq->cleaner) {
 		/*
 		 * We'd like to clean everything.
 		 */
@@ -1716,11 +1722,9 @@ static void calc_hotspot_params(sector_t
 		*hotspot_block_size /= 2u;
 }
 
-static struct dm_cache_policy *__smq_create(dm_cblock_t cache_size,
-					    sector_t origin_size,
-					    sector_t cache_block_size,
-					    bool mimic_mq,
-					    bool migrations_allowed)
+static struct dm_cache_policy *
+__smq_create(dm_cblock_t cache_size, sector_t origin_size, sector_t cache_block_size,
+	     bool mimic_mq, bool migrations_allowed, bool cleaner)
 {
 	unsigned i;
 	unsigned nr_sentinels_per_queue = 2u * NR_CACHE_LEVELS;
@@ -1807,6 +1811,7 @@ static struct dm_cache_policy *__smq_cre
 		goto bad_btracker;
 
 	mq->migrations_allowed = migrations_allowed;
+	mq->cleaner = cleaner;
 
 	return &mq->policy;
 
@@ -1830,21 +1835,24 @@ static struct dm_cache_policy *smq_creat
 					  sector_t origin_size,
 					  sector_t cache_block_size)
 {
-	return __smq_create(cache_size, origin_size, cache_block_size, false, true);
+	return __smq_create(cache_size, origin_size, cache_block_size,
+			    false, true, false);
 }
 
 static struct dm_cache_policy *mq_create(dm_cblock_t cache_size,
 					 sector_t origin_size,
 					 sector_t cache_block_size)
 {
-	return __smq_create(cache_size, origin_size, cache_block_size, true, true);
+	return __smq_create(cache_size, origin_size, cache_block_size,
+			    true, true, false);
 }
 
 static struct dm_cache_policy *cleaner_create(dm_cblock_t cache_size,
 					      sector_t origin_size,
 					      sector_t cache_block_size)
 {
-	return __smq_create(cache_size, origin_size, cache_block_size, false, false);
+	return __smq_create(cache_size, origin_size, cache_block_size,
+			    false, false, true);
 }
 
 /*----------------------------------------------------------------*/

[PATCH 5.15 145/155] rbd: make get_lock_owner_info() return a single locker or NULL

[Greg Kroah-Hartman]

From: Ilya Dryomov <idryomov@gmail.com>

commit f38cb9d9c2045dad16eead4a2e1aedfddd94603b upstream.

Make the "num_lockers can be only 0 or 1" assumption explicit and
simplify the API by getting rid of output parameters in preparation
for calling get_lock_owner_info() twice before blocklisting.

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/rbd.c |   84 +++++++++++++++++++++++++++++++---------------------
 1 file changed, 51 insertions(+), 33 deletions(-)

--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3851,10 +3851,17 @@ static void wake_lock_waiters(struct rbd
 	list_splice_tail_init(&rbd_dev->acquiring_list, &rbd_dev->running_list);
 }
 
-static int get_lock_owner_info(struct rbd_device *rbd_dev,
-			       struct ceph_locker **lockers, u32 *num_lockers)
+static void free_locker(struct ceph_locker *locker)
+{
+	if (locker)
+		ceph_free_lockers(locker, 1);
+}
+
+static struct ceph_locker *get_lock_owner_info(struct rbd_device *rbd_dev)
 {
 	struct ceph_osd_client *osdc = &rbd_dev->rbd_client->client->osdc;
+	struct ceph_locker *lockers;
+	u32 num_lockers;
 	u8 lock_type;
 	char *lock_tag;
 	int ret;
@@ -3863,39 +3870,45 @@ static int get_lock_owner_info(struct rb
 
 	ret = ceph_cls_lock_info(osdc, &rbd_dev->header_oid,
 				 &rbd_dev->header_oloc, RBD_LOCK_NAME,
-				 &lock_type, &lock_tag, lockers, num_lockers);
-	if (ret)
-		return ret;
+				 &lock_type, &lock_tag, &lockers, &num_lockers);
+	if (ret) {
+		rbd_warn(rbd_dev, "failed to retrieve lockers: %d", ret);
+		return ERR_PTR(ret);
+	}
 
-	if (*num_lockers == 0) {
+	if (num_lockers == 0) {
 		dout("%s rbd_dev %p no lockers detected\n", __func__, rbd_dev);
+		lockers = NULL;
 		goto out;
 	}
 
 	if (strcmp(lock_tag, RBD_LOCK_TAG)) {
 		rbd_warn(rbd_dev, "locked by external mechanism, tag %s",
 			 lock_tag);
-		ret = -EBUSY;
-		goto out;
+		goto err_busy;
 	}
 
 	if (lock_type == CEPH_CLS_LOCK_SHARED) {
 		rbd_warn(rbd_dev, "shared lock type detected");
-		ret = -EBUSY;
-		goto out;
+		goto err_busy;
 	}
 
-	if (strncmp((*lockers)[0].id.cookie, RBD_LOCK_COOKIE_PREFIX,
+	WARN_ON(num_lockers != 1);
+	if (strncmp(lockers[0].id.cookie, RBD_LOCK_COOKIE_PREFIX,
 		    strlen(RBD_LOCK_COOKIE_PREFIX))) {
 		rbd_warn(rbd_dev, "locked by external mechanism, cookie %s",
-			 (*lockers)[0].id.cookie);
-		ret = -EBUSY;
-		goto out;
+			 lockers[0].id.cookie);
+		goto err_busy;
 	}
 
 out:
 	kfree(lock_tag);
-	return ret;
+	return lockers;
+
+err_busy:
+	kfree(lock_tag);
+	ceph_free_lockers(lockers, num_lockers);
+	return ERR_PTR(-EBUSY);
 }
 
 static int find_watcher(struct rbd_device *rbd_dev,
@@ -3949,51 +3962,56 @@ out:
 static int rbd_try_lock(struct rbd_device *rbd_dev)
 {
 	struct ceph_client *client = rbd_dev->rbd_client->client;
-	struct ceph_locker *lockers;
-	u32 num_lockers;
+	struct ceph_locker *locker;
 	int ret;
 
 	for (;;) {
+		locker = NULL;
+
 		ret = rbd_lock(rbd_dev);
 		if (ret != -EBUSY)
-			return ret;
+			goto out;
 
 		/* determine if the current lock holder is still alive */
-		ret = get_lock_owner_info(rbd_dev, &lockers, &num_lockers);
-		if (ret)
-			return ret;
-
-		if (num_lockers == 0)
+		locker = get_lock_owner_info(rbd_dev);
+		if (IS_ERR(locker)) {
+			ret = PTR_ERR(locker);
+			locker = NULL;
+			goto out;
+		}
+		if (!locker)
 			goto again;
 
-		ret = find_watcher(rbd_dev, lockers);
+		ret = find_watcher(rbd_dev, locker);
 		if (ret)
 			goto out; /* request lock or error */
 
 		rbd_warn(rbd_dev, "breaking header lock owned by %s%llu",
-			 ENTITY_NAME(lockers[0].id.name));
+			 ENTITY_NAME(locker->id.name));
 
 		ret = ceph_monc_blocklist_add(&client->monc,
-					      &lockers[0].info.addr);
+					      &locker->info.addr);
 		if (ret) {
-			rbd_warn(rbd_dev, "blocklist of %s%llu failed: %d",
-				 ENTITY_NAME(lockers[0].id.name), ret);
+			rbd_warn(rbd_dev, "failed to blocklist %s%llu: %d",
+				 ENTITY_NAME(locker->id.name), ret);
 			goto out;
 		}
 
 		ret = ceph_cls_break_lock(&client->osdc, &rbd_dev->header_oid,
 					  &rbd_dev->header_oloc, RBD_LOCK_NAME,
-					  lockers[0].id.cookie,
-					  &lockers[0].id.name);
-		if (ret && ret != -ENOENT)
+					  locker->id.cookie, &locker->id.name);
+		if (ret && ret != -ENOENT) {
+			rbd_warn(rbd_dev, "failed to break header lock: %d",
+				 ret);
 			goto out;
+		}
 
 again:
-		ceph_free_lockers(lockers, num_lockers);
+		free_locker(locker);
 	}
 
 out:
-	ceph_free_lockers(lockers, num_lockers);
+	free_locker(locker);
 	return ret;
 }
 

[PATCH 5.15 146/155] rbd: harden get_lock_owner_info() a bit

[Greg Kroah-Hartman]

From: Ilya Dryomov <idryomov@gmail.com>

commit 8ff2c64c9765446c3cef804fb99da04916603e27 upstream.

- we want the exclusive lock type, so test for it directly
- use sscanf() to actually parse the lock cookie and avoid admitting
  invalid handles
- bail if locker has a blank address

Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/rbd.c  |   21 +++++++++++++++------
 net/ceph/messenger.c |    1 +
 2 files changed, 16 insertions(+), 6 deletions(-)

--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3864,10 +3864,9 @@ static struct ceph_locker *get_lock_owne
 	u32 num_lockers;
 	u8 lock_type;
 	char *lock_tag;
+	u64 handle;
 	int ret;
 
-	dout("%s rbd_dev %p\n", __func__, rbd_dev);
-
 	ret = ceph_cls_lock_info(osdc, &rbd_dev->header_oid,
 				 &rbd_dev->header_oloc, RBD_LOCK_NAME,
 				 &lock_type, &lock_tag, &lockers, &num_lockers);
@@ -3888,18 +3887,28 @@ static struct ceph_locker *get_lock_owne
 		goto err_busy;
 	}
 
-	if (lock_type == CEPH_CLS_LOCK_SHARED) {
-		rbd_warn(rbd_dev, "shared lock type detected");
+	if (lock_type != CEPH_CLS_LOCK_EXCLUSIVE) {
+		rbd_warn(rbd_dev, "incompatible lock type detected");
 		goto err_busy;
 	}
 
 	WARN_ON(num_lockers != 1);
-	if (strncmp(lockers[0].id.cookie, RBD_LOCK_COOKIE_PREFIX,
-		    strlen(RBD_LOCK_COOKIE_PREFIX))) {
+	ret = sscanf(lockers[0].id.cookie, RBD_LOCK_COOKIE_PREFIX " %llu",
+		     &handle);
+	if (ret != 1) {
 		rbd_warn(rbd_dev, "locked by external mechanism, cookie %s",
 			 lockers[0].id.cookie);
 		goto err_busy;
 	}
+	if (ceph_addr_is_blank(&lockers[0].info.addr)) {
+		rbd_warn(rbd_dev, "locker has a blank address");
+		goto err_busy;
+	}
+
+	dout("%s rbd_dev %p got locker %s%llu@%pISpc/%u handle %llu\n",
+	     __func__, rbd_dev, ENTITY_NAME(lockers[0].id.name),
+	     &lockers[0].info.addr.in_addr,
+	     le32_to_cpu(lockers[0].info.addr.nonce), handle);
 
 out:
 	kfree(lock_tag);
--- a/net/ceph/messenger.c
+++ b/net/ceph/messenger.c
@@ -1144,6 +1144,7 @@ bool ceph_addr_is_blank(const struct cep
 		return true;
 	}
 }
+EXPORT_SYMBOL(ceph_addr_is_blank);
 
 int ceph_addr_port(const struct ceph_entity_addr *addr)
 {

[PATCH 5.15 147/155] rbd: retrieve and check lock owner twice before blocklisting

[Greg Kroah-Hartman]

From: Ilya Dryomov <idryomov@gmail.com>

commit 588159009d5b7a09c3e5904cffddbe4a4e170301 upstream.

An attempt to acquire exclusive lock can race with the current lock
owner closing the image:

1. lock is held by client123, rbd_lock() returns -EBUSY
2. get_lock_owner_info() returns client123 instance details
3. client123 closes the image, lock is released
4. find_watcher() returns 0 as there is no matching watcher anymore
5. client123 instance gets erroneously blocklisted

Particularly impacted is mirror snapshot scheduler in snapshot-based
mirroring since it happens to open and close images a lot (images are
opened only for as long as it takes to take the next mirror snapshot,
the same client instance is used for all images).

To reduce the potential for erroneous blocklisting, retrieve the lock
owner again after find_watcher() returns 0.  If it's still there, make
sure it matches the previously detected lock owner.

Cc: stable@vger.kernel.org # f38cb9d9c204: rbd: make get_lock_owner_info() return a single locker or NULL
Cc: stable@vger.kernel.org # 8ff2c64c9765: rbd: harden get_lock_owner_info() a bit
Cc: stable@vger.kernel.org
Signed-off-by: Ilya Dryomov <idryomov@gmail.com>
Reviewed-by: Dongsheng Yang <dongsheng.yang@easystack.cn>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/rbd.c |   25 +++++++++++++++++++++++--
 1 file changed, 23 insertions(+), 2 deletions(-)

--- a/drivers/block/rbd.c
+++ b/drivers/block/rbd.c
@@ -3851,6 +3851,15 @@ static void wake_lock_waiters(struct rbd
 	list_splice_tail_init(&rbd_dev->acquiring_list, &rbd_dev->running_list);
 }
 
+static bool locker_equal(const struct ceph_locker *lhs,
+			 const struct ceph_locker *rhs)
+{
+	return lhs->id.name.type == rhs->id.name.type &&
+	       lhs->id.name.num == rhs->id.name.num &&
+	       !strcmp(lhs->id.cookie, rhs->id.cookie) &&
+	       ceph_addr_equal_no_type(&lhs->info.addr, &rhs->info.addr);
+}
+
 static void free_locker(struct ceph_locker *locker)
 {
 	if (locker)
@@ -3971,11 +3980,11 @@ out:
 static int rbd_try_lock(struct rbd_device *rbd_dev)
 {
 	struct ceph_client *client = rbd_dev->rbd_client->client;
-	struct ceph_locker *locker;
+	struct ceph_locker *locker, *refreshed_locker;
 	int ret;
 
 	for (;;) {
-		locker = NULL;
+		locker = refreshed_locker = NULL;
 
 		ret = rbd_lock(rbd_dev);
 		if (ret != -EBUSY)
@@ -3995,6 +4004,16 @@ static int rbd_try_lock(struct rbd_devic
 		if (ret)
 			goto out; /* request lock or error */
 
+		refreshed_locker = get_lock_owner_info(rbd_dev);
+		if (IS_ERR(refreshed_locker)) {
+			ret = PTR_ERR(refreshed_locker);
+			refreshed_locker = NULL;
+			goto out;
+		}
+		if (!refreshed_locker ||
+		    !locker_equal(locker, refreshed_locker))
+			goto again;
+
 		rbd_warn(rbd_dev, "breaking header lock owned by %s%llu",
 			 ENTITY_NAME(locker->id.name));
 
@@ -4016,10 +4035,12 @@ static int rbd_try_lock(struct rbd_devic
 		}
 
 again:
+		free_locker(refreshed_locker);
 		free_locker(locker);
 	}
 
 out:
+	free_locker(refreshed_locker);
 	free_locker(locker);
 	return ret;
 }

[PATCH 5.15 148/155] tracing: Fix trace_event_raw_event_synth() if else statement

[Greg Kroah-Hartman]

From: Steven Rostedt (Google) <rostedt@goodmis.org>

commit 9971c3f944489ff7aacb9d25e0cde841a5f6018a upstream.

The test to check if the field is a stack is to be done if it is not a
string. But the code had:

    } if (event->fields[i]->is_stack) {

and not

   } else if (event->fields[i]->is_stack) {

which would cause it to always be tested. Worse yet, this also included an
"else" statement that was only to be called if the field was not a string
and a stack, but this code allows it to be called if it was a string (and
not a stack).

Also fixed some whitespace issues.

Link: https://lore.kernel.org/all/202301302110.mEtNwkBD-lkp@intel.com/
Link: https://lore.kernel.org/linux-trace-kernel/20230131095237.63e3ca8d@gandalf.local.home

Cc: Tom Zanussi <zanussi@kernel.org>
Fixes: 00cf3d672a9d ("tracing: Allow synthetic events to pass around stacktraces")
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/trace/trace_events_synth.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/kernel/trace/trace_events_synth.c
+++ b/kernel/trace/trace_events_synth.c
@@ -557,8 +557,8 @@ static notrace void trace_event_raw_even
 					   event->fields[i]->is_dynamic,
 					   data_size, &n_u64);
 			data_size += len; /* only dynamic string increments */
-		} if (event->fields[i]->is_stack) {
-		        long *stack = (long *)(long)var_ref_vals[val_idx];
+		} else if (event->fields[i]->is_stack) {
+			long *stack = (long *)(long)var_ref_vals[val_idx];
 
 			len = trace_stack(entry, event, stack,
 					   data_size, &n_u64);

[PATCH 5.15 149/155] ACPI: processor: perflib: Use the "no limit" frequency QoS

[Greg Kroah-Hartman]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

commit c02d5feb6e2f60affc6ba8606d8d614c071e2ba6 upstream.

When _PPC returns 0, it means that the CPU frequency is not limited by
the platform firmware, so make acpi_processor_get_platform_limit()
update the frequency QoS request used by it to "no limit" in that case.

This addresses a problem with limiting CPU frequency artificially on
some systems after CPU offline/online to the frequency that corresponds
to the first entry in the _PSS return package.

Reported-by: Pratyush Yadav <ptyadav@amazon.de>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Pratyush Yadav <ptyadav@amazon.de>
Tested-by: Pratyush Yadav <ptyadav@amazon.de>
Tested-by: Hagar Hemdan <hagarhem@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/processor_perflib.c |   20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -53,6 +53,8 @@ static int acpi_processor_get_platform_l
 {
 	acpi_status status = 0;
 	unsigned long long ppc = 0;
+	s32 qos_value;
+	int index;
 	int ret;
 
 	if (!pr)
@@ -72,17 +74,27 @@ static int acpi_processor_get_platform_l
 		}
 	}
 
+	index = ppc;
+
 	pr_debug("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
-		       (int)ppc, ppc ? "" : "not");
+		 index, index ? "is" : "is not");
 
-	pr->performance_platform_limit = (int)ppc;
+	pr->performance_platform_limit = index;
 
 	if (ppc >= pr->performance->state_count ||
 	    unlikely(!freq_qos_request_active(&pr->perflib_req)))
 		return 0;
 
-	ret = freq_qos_update_request(&pr->perflib_req,
-			pr->performance->states[ppc].core_frequency * 1000);
+	/*
+	 * If _PPC returns 0, it means that all of the available states can be
+	 * used ("no limit").
+	 */
+	if (index == 0)
+		qos_value = FREQ_QOS_MAX_DEFAULT_VALUE;
+	else
+		qos_value = pr->performance->states[index].core_frequency * 1000;
+
+	ret = freq_qos_update_request(&pr->perflib_req, qos_value);
 	if (ret < 0) {
 		pr_warn("Failed to update perflib freq constraint: CPU%d (%d)\n",
 			pr->id, ret);

[PATCH 5.15 150/155] ACPI: processor: perflib: Avoid updating frequency QoS unnecessarily

[Greg Kroah-Hartman]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

commit 99387b016022c29234c4ebf9abd34358c6e56532 upstream.

Modify acpi_processor_get_platform_limit() to avoid updating its
frequency QoS request when the _PPC return value has not changed
by comparing that value to the previous _PPC return value stored in
the performance_platform_limit field of the struct acpi_processor
corresponding to the given CPU.

While at it, do the _PPC return value check against the state count
earlier, to avoid setting performance_platform_limit to an invalid
value, and make acpi_processor_ppc_init() use FREQ_QOS_MAX_DEFAULT_VALUE
as the "no limit" frequency QoS for consistency.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Hagar Hemdan <hagarhem@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/acpi/processor_perflib.c |   18 ++++++++++++++----
 1 file changed, 14 insertions(+), 4 deletions(-)

--- a/drivers/acpi/processor_perflib.c
+++ b/drivers/acpi/processor_perflib.c
@@ -76,13 +76,16 @@ static int acpi_processor_get_platform_l
 
 	index = ppc;
 
+	if (pr->performance_platform_limit == index ||
+	    ppc >= pr->performance->state_count)
+		return 0;
+
 	pr_debug("CPU %d: _PPC is %d - frequency %s limited\n", pr->id,
 		 index, index ? "is" : "is not");
 
 	pr->performance_platform_limit = index;
 
-	if (ppc >= pr->performance->state_count ||
-	    unlikely(!freq_qos_request_active(&pr->perflib_req)))
+	if (unlikely(!freq_qos_request_active(&pr->perflib_req)))
 		return 0;
 
 	/*
@@ -177,9 +180,16 @@ void acpi_processor_ppc_init(struct cpuf
 		if (!pr)
 			continue;
 
+		/*
+		 * Reset performance_platform_limit in case there is a stale
+		 * value in it, so as to make it match the "no limit" QoS value
+		 * below.
+		 */
+		pr->performance_platform_limit = 0;
+
 		ret = freq_qos_add_request(&policy->constraints,
-					   &pr->perflib_req,
-					   FREQ_QOS_MAX, INT_MAX);
+					   &pr->perflib_req, FREQ_QOS_MAX,
+					   FREQ_QOS_MAX_DEFAULT_VALUE);
 		if (ret < 0)
 			pr_err("Failed to add freq constraint for CPU%d (%d)\n",
 			       cpu, ret);

[PATCH 5.15 151/155] cpufreq: intel_pstate: Drop ACPI _PSS states table patching

[Greg Kroah-Hartman]

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

commit e8a0e30b742f76ebd0f3b196973df4bf65d8fbbb upstream.

After making acpi_processor_get_platform_limit() use the "no limit"
value for its frequency QoS request when _PPC returns 0, it is not
necessary to replace the frequency corresponding to the first _PSS
return package entry with the maximum turbo frequency of the given
CPU in intel_pstate_init_acpi_perf_limits() any more, so drop the
code doing that along with the comment explaining it.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Tested-by: Hagar Hemdan <hagarhem@amazon.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/cpufreq/intel_pstate.c |   14 --------------
 1 file changed, 14 deletions(-)

--- a/drivers/cpufreq/intel_pstate.c
+++ b/drivers/cpufreq/intel_pstate.c
@@ -448,20 +448,6 @@ static void intel_pstate_init_acpi_perf_
 			 (u32) cpu->acpi_perf_data.states[i].control);
 	}
 
-	/*
-	 * The _PSS table doesn't contain whole turbo frequency range.
-	 * This just contains +1 MHZ above the max non turbo frequency,
-	 * with control value corresponding to max turbo ratio. But
-	 * when cpufreq set policy is called, it will call with this
-	 * max frequency, which will cause a reduced performance as
-	 * this driver uses real max turbo frequency as the max
-	 * frequency. So correct this frequency in _PSS table to
-	 * correct max turbo frequency based on the turbo state.
-	 * Also need to convert to MHz as _PSS freq is in MHz.
-	 */
-	if (!global.turbo_disabled)
-		cpu->acpi_perf_data.states[0].core_frequency =
-					policy->cpuinfo.max_freq / 1000;
 	cpu->valid_pss_table = true;
 	pr_debug("_PPC limits will be enforced\n");
 

[PATCH 5.15 152/155] selftests: mptcp: sockopt: use iptables-legacy if available

[Greg Kroah-Hartman]

From: Matthieu Baerts <matthieu.baerts@tessares.net>

commit a5a5990c099dd354e05e89ee77cd2dbf6655d4a1 upstream.

IPTables commands using 'iptables-nft' fail on old kernels, at least
on v5.15 because it doesn't see the default IPTables chains:

  $ iptables -L
  iptables/1.8.2 Failed to initialize nft: Protocol not supported

As a first step before switching to NFTables, we can use iptables-legacy
if available.

Link: https://github.com/multipath-tcp/mptcp_net-next/issues/368
Fixes: dc65fe82fb07 ("selftests: mptcp: add packet mark test case")
Cc: stable@vger.kernel.org
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/net/mptcp/mptcp_sockopt.sh |   20 +++++++++++---------
 1 file changed, 11 insertions(+), 9 deletions(-)

--- a/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_sockopt.sh
@@ -13,13 +13,15 @@ timeout_poll=30
 timeout_test=$((timeout_poll * 2 + 1))
 mptcp_connect=""
 do_all_tests=1
+iptables="iptables"
+ip6tables="ip6tables"
 
 add_mark_rules()
 {
 	local ns=$1
 	local m=$2
 
-	for t in iptables ip6tables; do
+	for t in ${iptables} ${ip6tables}; do
 		# just to debug: check we have multiple subflows connection requests
 		ip netns exec $ns $t -A OUTPUT -p tcp --syn -m mark --mark $m -j ACCEPT
 
@@ -90,14 +92,14 @@ if [ $? -ne 0 ];then
 	exit $ksft_skip
 fi
 
-iptables -V > /dev/null 2>&1
-if [ $? -ne 0 ];then
+# Use the legacy version if available to support old kernel versions
+if iptables-legacy -V &> /dev/null; then
+	iptables="iptables-legacy"
+	ip6tables="ip6tables-legacy"
+elif ! iptables -V &> /dev/null; then
 	echo "SKIP: Could not run all tests without iptables tool"
 	exit $ksft_skip
-fi
-
-ip6tables -V > /dev/null 2>&1
-if [ $? -ne 0 ];then
+elif ! ip6tables -V &> /dev/null; then
 	echo "SKIP: Could not run all tests without ip6tables tool"
 	exit $ksft_skip
 fi
@@ -107,10 +109,10 @@ check_mark()
 	local ns=$1
 	local af=$2
 
-	tables=iptables
+	tables=${iptables}
 
 	if [ $af -eq 6 ];then
-		tables=ip6tables
+		tables=${ip6tables}
 	fi
 
 	counters=$(ip netns exec $ns $tables -v -L OUTPUT | grep DROP)

[PATCH 5.15 153/155] io_uring: treat -EAGAIN for REQ_F_NOWAIT as final for io-wq

[Greg Kroah-Hartman]

From: Jens Axboe <axboe@kernel.dk>

commit a9be202269580ca611c6cebac90eaf1795497800 upstream.

io-wq assumes that an issue is blocking, but it may not be if the
request type has asked for a non-blocking attempt. If we get
-EAGAIN for that case, then we need to treat it as a final result
and not retry or arm poll for it.

Cc: stable@vger.kernel.org # 5.10+
Link: https://github.com/axboe/liburing/issues/897
Signed-off-by: Jens Axboe <axboe@kernel.dk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 io_uring/io_uring.c |    8 ++++++++
 1 file changed, 8 insertions(+)

--- a/io_uring/io_uring.c
+++ b/io_uring/io_uring.c
@@ -7066,6 +7066,14 @@ static void io_wq_submit_work(struct io_
 			 */
 			if (ret != -EAGAIN || !(req->ctx->flags & IORING_SETUP_IOPOLL))
 				break;
+
+			/*
+			 * If REQ_F_NOWAIT is set, then don't wait or retry with
+			 * poll. -EAGAIN is final for that case.
+			 */
+			if (req->flags & REQ_F_NOWAIT)
+				break;
+
 			cond_resched();
 		} while (1);
 	}

[PATCH 5.15 154/155] ASoC: cs42l51: fix driver to properly autoload with automatic module loading

[Greg Kroah-Hartman]

From: Thomas Petazzoni <thomas.petazzoni@bootlin.com>

commit e51df4f81b02bcdd828a04de7c1eb6a92988b61e upstream.

In commit 2cb1e0259f50 ("ASoC: cs42l51: re-hook of_match_table
pointer"), 9 years ago, some random guy fixed the cs42l51 after it was
split into a core part and an I2C part to properly match based on a
Device Tree compatible string.

However, the fix in this commit is wrong: the MODULE_DEVICE_TABLE(of,
....) is in the core part of the driver, not the I2C part. Therefore,
automatic module loading based on module.alias, based on matching with
the DT compatible string, loads the core part of the driver, but not
the I2C part. And threfore, the i2c_driver is not registered, and the
codec is not known to the system, nor matched with a DT node with the
corresponding compatible string.

In order to fix that, we move the MODULE_DEVICE_TABLE(of, ...) into
the I2C part of the driver. The cs42l51_of_match[] array is also moved
as well, as it is not possible to have this definition in one file,
and the MODULE_DEVICE_TABLE(of, ...) invocation in another file, due
to how MODULE_DEVICE_TABLE works.

Thanks to this commit, the I2C part of the driver now properly
autoloads, and thanks to its dependency on the core part, the core
part gets autoloaded as well, resulting in a functional sound card
without having to manually load kernel modules.

Fixes: 2cb1e0259f50 ("ASoC: cs42l51: re-hook of_match_table pointer")
Cc: stable@vger.kernel.org
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
Link: https://lore.kernel.org/r/20230713112112.778576-1-thomas.petazzoni@bootlin.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 sound/soc/codecs/cs42l51-i2c.c |    6 ++++++
 sound/soc/codecs/cs42l51.c     |    7 -------
 sound/soc/codecs/cs42l51.h     |    1 -
 3 files changed, 6 insertions(+), 8 deletions(-)

--- a/sound/soc/codecs/cs42l51-i2c.c
+++ b/sound/soc/codecs/cs42l51-i2c.c
@@ -19,6 +19,12 @@ static struct i2c_device_id cs42l51_i2c_
 };
 MODULE_DEVICE_TABLE(i2c, cs42l51_i2c_id);
 
+const struct of_device_id cs42l51_of_match[] = {
+	{ .compatible = "cirrus,cs42l51", },
+	{ }
+};
+MODULE_DEVICE_TABLE(of, cs42l51_of_match);
+
 static int cs42l51_i2c_probe(struct i2c_client *i2c,
 			     const struct i2c_device_id *id)
 {
--- a/sound/soc/codecs/cs42l51.c
+++ b/sound/soc/codecs/cs42l51.c
@@ -825,13 +825,6 @@ int __maybe_unused cs42l51_resume(struct
 }
 EXPORT_SYMBOL_GPL(cs42l51_resume);
 
-const struct of_device_id cs42l51_of_match[] = {
-	{ .compatible = "cirrus,cs42l51", },
-	{ }
-};
-MODULE_DEVICE_TABLE(of, cs42l51_of_match);
-EXPORT_SYMBOL_GPL(cs42l51_of_match);
-
 MODULE_AUTHOR("Arnaud Patard <arnaud.patard@rtp-net.org>");
 MODULE_DESCRIPTION("Cirrus Logic CS42L51 ALSA SoC Codec Driver");
 MODULE_LICENSE("GPL");
--- a/sound/soc/codecs/cs42l51.h
+++ b/sound/soc/codecs/cs42l51.h
@@ -16,7 +16,6 @@ int cs42l51_probe(struct device *dev, st
 int cs42l51_remove(struct device *dev);
 int __maybe_unused cs42l51_suspend(struct device *dev);
 int __maybe_unused cs42l51_resume(struct device *dev);
-extern const struct of_device_id cs42l51_of_match[];
 
 #define CS42L51_CHIP_ID			0x1B
 #define CS42L51_CHIP_REV_A		0x00

[PATCH 5.15 155/155] selftests: mptcp: join: only check for ip6tables if needed

[Greg Kroah-Hartman]

From: Matthieu Baerts <matthieu.baerts@tessares.net>

commit 016e7ba47f33064fbef8c4307a2485d2669dfd03 upstream.

If 'iptables-legacy' is available, 'ip6tables-legacy' command will be
used instead of 'ip6tables'. So no need to look if 'ip6tables' is
available in this case.

Cc: stable@vger.kernel.org
Fixes: 0c4cd3f86a40 ("selftests: mptcp: join: use 'iptables-legacy' if available")
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20230725-send-net-20230725-v1-1-6f60fe7137a9@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/net/mptcp/mptcp_join.sh |    5 +----
 1 file changed, 1 insertion(+), 4 deletions(-)

--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -179,10 +179,7 @@ if iptables-legacy -V &> /dev/null; then
 elif ! iptables -V &> /dev/null; then
 	echo "SKIP: Could not run all tests without iptables tool"
 	exit $ksft_skip
-fi
-
-ip6tables -V > /dev/null 2>&1
-if [ $? -ne 0 ];then
+elif ! ip6tables -V &> /dev/null; then
 	echo "SKIP: Could not run all tests without ip6tables tool"
 	exit $ksft_skip
 fi

Re: [PATCH 5.15 047/155] jbd2: remove journal_clean_one_cp_list()

[Jan Kara]

On Tue 01-08-23 11:19:19, Greg Kroah-Hartman wrote:
> From: Zhang Yi <yi.zhang@huawei.com>
> 
> [ Upstream commit b98dba273a0e47dbfade89c9af73c5b012a4eabb ]
> 
> journal_clean_one_cp_list() and journal_shrink_one_cp_list() are almost
> the same, so merge them into journal_shrink_one_cp_list(), remove the
> nr_to_scan parameter, always scan and try to free the whole checkpoint
> list.
> 
> Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
> Reviewed-by: Jan Kara <jack@suse.cz>
> Link: https://lore.kernel.org/r/20230606135928.434610-4-yi.zhang@huaweicloud.com
> Signed-off-by: Theodore Ts'o <tytso@mit.edu>
> Stable-dep-of: 46f881b5b175 ("jbd2: fix a race when checking checkpoint buffer busy")
> Signed-off-by: Sasha Levin <sashal@kernel.org>

This and the following patch (46f881b5b175) have some issues [1] and cause a
performance regression for some workloads and possible metadata corruption
after a crash. So please drop these two patches from the stable trees for
now. We can include them again later once the code has stabilized...
Thanks!

								Honza

[1] https://lore.kernel.org/all/20230714025528.564988-1-yi.zhang@huaweicloud.com


>  fs/jbd2/checkpoint.c        | 75 +++++++++----------------------------
>  include/trace/events/jbd2.h | 12 ++----
>  2 files changed, 21 insertions(+), 66 deletions(-)
> 
> diff --git a/fs/jbd2/checkpoint.c b/fs/jbd2/checkpoint.c
> index c1f543e86170a..ab72aeb766a74 100644
> --- a/fs/jbd2/checkpoint.c
> +++ b/fs/jbd2/checkpoint.c
> @@ -349,50 +349,10 @@ int jbd2_cleanup_journal_tail(journal_t *journal)
>  
>  /* Checkpoint list management */
>  
> -/*
> - * journal_clean_one_cp_list
> - *
> - * Find all the written-back checkpoint buffers in the given list and
> - * release them. If 'destroy' is set, clean all buffers unconditionally.
> - *
> - * Called with j_list_lock held.
> - * Returns 1 if we freed the transaction, 0 otherwise.
> - */
> -static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
> -{
> -	struct journal_head *last_jh;
> -	struct journal_head *next_jh = jh;
> -
> -	if (!jh)
> -		return 0;
> -
> -	last_jh = jh->b_cpprev;
> -	do {
> -		jh = next_jh;
> -		next_jh = jh->b_cpnext;
> -
> -		if (!destroy && __cp_buffer_busy(jh))
> -			return 0;
> -
> -		if (__jbd2_journal_remove_checkpoint(jh))
> -			return 1;
> -		/*
> -		 * This function only frees up some memory
> -		 * if possible so we dont have an obligation
> -		 * to finish processing. Bail out if preemption
> -		 * requested:
> -		 */
> -		if (need_resched())
> -			return 0;
> -	} while (jh != last_jh);
> -
> -	return 0;
> -}
> -
>  /*
>   * journal_shrink_one_cp_list
>   *
> - * Find 'nr_to_scan' written-back checkpoint buffers in the given list
> + * Find all the written-back checkpoint buffers in the given list
>   * and try to release them. If the whole transaction is released, set
>   * the 'released' parameter. Return the number of released checkpointed
>   * buffers.
> @@ -400,15 +360,15 @@ static int journal_clean_one_cp_list(struct journal_head *jh, bool destroy)
>   * Called with j_list_lock held.
>   */
>  static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
> -						unsigned long *nr_to_scan,
> -						bool *released)
> +						bool destroy, bool *released)
>  {
>  	struct journal_head *last_jh;
>  	struct journal_head *next_jh = jh;
>  	unsigned long nr_freed = 0;
>  	int ret;
>  
> -	if (!jh || *nr_to_scan == 0)
> +	*released = false;
> +	if (!jh)
>  		return 0;
>  
>  	last_jh = jh->b_cpprev;
> @@ -416,8 +376,7 @@ static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
>  		jh = next_jh;
>  		next_jh = jh->b_cpnext;
>  
> -		(*nr_to_scan)--;
> -		if (__cp_buffer_busy(jh))
> +		if (!destroy && __cp_buffer_busy(jh))
>  			continue;
>  
>  		nr_freed++;
> @@ -429,7 +388,7 @@ static unsigned long journal_shrink_one_cp_list(struct journal_head *jh,
>  
>  		if (need_resched())
>  			break;
> -	} while (jh != last_jh && *nr_to_scan);
> +	} while (jh != last_jh);
>  
>  	return nr_freed;
>  }
> @@ -447,11 +406,11 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
>  						  unsigned long *nr_to_scan)
>  {
>  	transaction_t *transaction, *last_transaction, *next_transaction;
> -	bool released;
> +	bool __maybe_unused released;
>  	tid_t first_tid = 0, last_tid = 0, next_tid = 0;
>  	tid_t tid = 0;
>  	unsigned long nr_freed = 0;
> -	unsigned long nr_scanned = *nr_to_scan;
> +	unsigned long freed;
>  
>  again:
>  	spin_lock(&journal->j_list_lock);
> @@ -480,10 +439,11 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
>  		transaction = next_transaction;
>  		next_transaction = transaction->t_cpnext;
>  		tid = transaction->t_tid;
> -		released = false;
>  
> -		nr_freed += journal_shrink_one_cp_list(transaction->t_checkpoint_list,
> -						       nr_to_scan, &released);
> +		freed = journal_shrink_one_cp_list(transaction->t_checkpoint_list,
> +						   false, &released);
> +		nr_freed += freed;
> +		(*nr_to_scan) -= min(*nr_to_scan, freed);
>  		if (*nr_to_scan == 0)
>  			break;
>  		if (need_resched() || spin_needbreak(&journal->j_list_lock))
> @@ -504,9 +464,8 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
>  	if (*nr_to_scan && next_tid)
>  		goto again;
>  out:
> -	nr_scanned -= *nr_to_scan;
>  	trace_jbd2_shrink_checkpoint_list(journal, first_tid, tid, last_tid,
> -					  nr_freed, nr_scanned, next_tid);
> +					  nr_freed, next_tid);
>  
>  	return nr_freed;
>  }
> @@ -522,7 +481,7 @@ unsigned long jbd2_journal_shrink_checkpoint_list(journal_t *journal,
>  void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
>  {
>  	transaction_t *transaction, *last_transaction, *next_transaction;
> -	int ret;
> +	bool released;
>  
>  	transaction = journal->j_checkpoint_transactions;
>  	if (!transaction)
> @@ -533,8 +492,8 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
>  	do {
>  		transaction = next_transaction;
>  		next_transaction = transaction->t_cpnext;
> -		ret = journal_clean_one_cp_list(transaction->t_checkpoint_list,
> -						destroy);
> +		journal_shrink_one_cp_list(transaction->t_checkpoint_list,
> +					   destroy, &released);
>  		/*
>  		 * This function only frees up some memory if possible so we
>  		 * dont have an obligation to finish processing. Bail out if
> @@ -547,7 +506,7 @@ void __jbd2_journal_clean_checkpoint_list(journal_t *journal, bool destroy)
>  		 * avoids pointless scanning of transactions which still
>  		 * weren't checkpointed.
>  		 */
> -		if (!ret)
> +		if (!released)
>  			return;
>  	} while (transaction != last_transaction);
>  }
> diff --git a/include/trace/events/jbd2.h b/include/trace/events/jbd2.h
> index 29414288ea3e0..34ce197bd76e0 100644
> --- a/include/trace/events/jbd2.h
> +++ b/include/trace/events/jbd2.h
> @@ -462,11 +462,9 @@ TRACE_EVENT(jbd2_shrink_scan_exit,
>  TRACE_EVENT(jbd2_shrink_checkpoint_list,
>  
>  	TP_PROTO(journal_t *journal, tid_t first_tid, tid_t tid, tid_t last_tid,
> -		 unsigned long nr_freed, unsigned long nr_scanned,
> -		 tid_t next_tid),
> +		 unsigned long nr_freed, tid_t next_tid),
>  
> -	TP_ARGS(journal, first_tid, tid, last_tid, nr_freed,
> -		nr_scanned, next_tid),
> +	TP_ARGS(journal, first_tid, tid, last_tid, nr_freed, next_tid),
>  
>  	TP_STRUCT__entry(
>  		__field(dev_t, dev)
> @@ -474,7 +472,6 @@ TRACE_EVENT(jbd2_shrink_checkpoint_list,
>  		__field(tid_t, tid)
>  		__field(tid_t, last_tid)
>  		__field(unsigned long, nr_freed)
> -		__field(unsigned long, nr_scanned)
>  		__field(tid_t, next_tid)
>  	),
>  
> @@ -484,15 +481,14 @@ TRACE_EVENT(jbd2_shrink_checkpoint_list,
>  		__entry->tid		= tid;
>  		__entry->last_tid	= last_tid;
>  		__entry->nr_freed	= nr_freed;
> -		__entry->nr_scanned	= nr_scanned;
>  		__entry->next_tid	= next_tid;
>  	),
>  
>  	TP_printk("dev %d,%d shrink transaction %u-%u(%u) freed %lu "
> -		  "scanned %lu next transaction %u",
> +		  "next transaction %u",
>  		  MAJOR(__entry->dev), MINOR(__entry->dev),
>  		  __entry->first_tid, __entry->tid, __entry->last_tid,
> -		  __entry->nr_freed, __entry->nr_scanned, __entry->next_tid)
> +		  __entry->nr_freed, __entry->next_tid)
>  );
>  
>  #endif /* _TRACE_JBD2_H */
> -- 
> 2.39.2
> 
> 
> 
-- 
Jan Kara <jack@suse.com>
SUSE Labs, CR

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[Jon Hunter]

On Tue, 01 Aug 2023 11:18:32 +0200, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.124 release.
> There are 155 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

All tests passing for Tegra ...

Test results for stable-v5.15:
    11 builds:	11 pass, 0 fail
    28 boots:	28 pass, 0 fail
    114 tests:	114 pass, 0 fail

Linux version:	5.15.124-rc1-gb2c388dc2443
Boards tested:	tegra124-jetson-tk1, tegra186-p2771-0000,
                tegra194-p2972-0000, tegra194-p3509-0000+p3668-0000,
                tegra20-ventana, tegra210-p2371-2180,
                tegra210-p3450-0000, tegra30-cardhu-a04

Tested-by: Jon Hunter <jonathanh@nvidia.com>

Jon

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[SeongJae Park]

Hello,

On Tue, 1 Aug 2023 11:18:32 +0200 Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:

> This is the start of the stable review cycle for the 5.15.124 release.
> There are 155 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.

This rc kernel passes DAMON functionality test[1] on my test machine.
Attaching the test results summary below.  Please note that I retrieved the
kernel from linux-stable-rc tree[2].

Tested-by: SeongJae Park <sj@kernel.org>

[1] https://github.com/awslabs/damon-tests/tree/next/corr
[2] b2c388dc2443 ("Linux 5.15.124-rc1")


Thanks,
SJ

[...]

---

ok 1 selftests: damon: debugfs_attrs.sh
ok 1 selftests: damon-tests: kunit.sh
ok 2 selftests: damon-tests: huge_count_read_write.sh
ok 3 selftests: damon-tests: buffer_overflow.sh
ok 4 selftests: damon-tests: rm_contexts.sh
ok 5 selftests: damon-tests: record_null_deref.sh
ok 6 selftests: damon-tests: dbgfs_target_ids_read_before_terminate_race.sh
ok 7 selftests: damon-tests: dbgfs_target_ids_pid_leak.sh
ok 8 selftests: damon-tests: damo_tests.sh
ok 9 selftests: damon-tests: masim-record.sh
ok 10 selftests: damon-tests: build_i386.sh
ok 11 selftests: damon-tests: build_m68k.sh
ok 12 selftests: damon-tests: build_arm64.sh
ok 13 selftests: damon-tests: build_i386_idle_flag.sh
ok 14 selftests: damon-tests: build_i386_highpte.sh
ok 15 selftests: damon-tests: build_nomemcg.sh

PASS

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[Florian Fainelli]

On 8/1/23 02:18, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.124 release.
> There are 155 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h

On ARCH_BRCMSTB using 32-bit and 64-bit ARM kernels, build tested on 
BMIPS_GENERIC:

Tested-by: Florian Fainelli <florian.fainelli@broadcom.com>
-- 
Florian

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[Shuah Khan]

On 8/1/23 03:18, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.124 release.
> There are 155 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
> 
> thanks,
> 
> greg k-h
> 

Compiled and booted on my test system. No dmesg regressions.

Tested-by: Shuah Khan <skhan@linuxfoundation.org>

thanks,
-- Shuah

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[Naresh Kamboju]

On Tue, 1 Aug 2023 at 14:52, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 5.15.124 release.
> There are 155 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
>
> Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> Anything received after that time might be too late.
>
> The whole patch series can be found in one patch at:
>         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> or in the git tree and branch at:
>         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Following patch caused build regression on stable-rc 5.15 and stable-rc 6.1,

Regressions found on arm:

  - build/gcc-12-orion5x_defconfig
  - build/clang-nightly-orion5x_defconfig
  - build/gcc-8-orion5x_defconfig
  - build/clang-16-orion5x_defconfig

gpio: mvebu: Make use of devm_pwmchip_add
[ Upstream commit 1945063eb59e64d2919cb14d54d081476d9e53bb ]

Build log:
------
drivers/gpio/gpio-mvebu.c: In function 'mvebu_pwm_probe':
drivers/gpio/gpio-mvebu.c:877:16: error: implicit declaration of
function 'devm_pwmchip_add'; did you mean 'pwmchip_add'?
[-Werror=implicit-function-declaration]
  877 |         return devm_pwmchip_add(dev, &mvpwm->chip);
      |                ^~~~~~~~~~~~~~~~
      |                pwmchip_add
cc1: some warnings being treated as errors

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Links:
 - https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-5.15.y/build/v5.15.123-156-gb2c388dc2443/testrun/18771613/suite/build/test/gcc-12-orion5x_defconfig/details/

--
Linaro LKFT
https://lkft.linaro.org

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[Harshit Mogalapalli]

Hi Greg,

On 01/08/23 2:48 pm, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 5.15.124 release.
> There are 155 patches in this series, all will be posted as a response
> to this one.  If anyone has any issues with these being applied, please
> let me know.
> 
> Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> Anything received after that time might be too late.
> 
> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> or in the git tree and branch at:
> 	git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> and the diffstat can be found below.
> 

No problems seen on x86_64 and aarch64.

Tested-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>

Thanks,
Harshit


> thanks,
> 
> greg k-h

Re: [PATCH 5.15 047/155] jbd2: remove journal_clean_one_cp_list()

[Greg Kroah-Hartman]

On Tue, Aug 01, 2023 at 03:09:44PM +0200, Jan Kara wrote:
> On Tue 01-08-23 11:19:19, Greg Kroah-Hartman wrote:
> > From: Zhang Yi <yi.zhang@huawei.com>
> > 
> > [ Upstream commit b98dba273a0e47dbfade89c9af73c5b012a4eabb ]
> > 
> > journal_clean_one_cp_list() and journal_shrink_one_cp_list() are almost
> > the same, so merge them into journal_shrink_one_cp_list(), remove the
> > nr_to_scan parameter, always scan and try to free the whole checkpoint
> > list.
> > 
> > Signed-off-by: Zhang Yi <yi.zhang@huawei.com>
> > Reviewed-by: Jan Kara <jack@suse.cz>
> > Link: https://lore.kernel.org/r/20230606135928.434610-4-yi.zhang@huaweicloud.com
> > Signed-off-by: Theodore Ts'o <tytso@mit.edu>
> > Stable-dep-of: 46f881b5b175 ("jbd2: fix a race when checking checkpoint buffer busy")
> > Signed-off-by: Sasha Levin <sashal@kernel.org>
> 
> This and the following patch (46f881b5b175) have some issues [1] and cause a
> performance regression for some workloads and possible metadata corruption
> after a crash. So please drop these two patches from the stable trees for
> now. We can include them again later once the code has stabilized...
> Thanks!

Thanks, turns out there were 3 patches here (2 prep patches, one fix)
that needed to be dropped from all queues.  Let us know when the fix is
in Linus's tree so we can add them back in.

thanks,

greg k-h

Re: [PATCH 5.15 000/155] 5.15.124-rc1 review

[Greg Kroah-Hartman]

On Wed, Aug 02, 2023 at 07:27:03AM +0530, Naresh Kamboju wrote:
> On Tue, 1 Aug 2023 at 14:52, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 5.15.124 release.
> > There are 155 patches in this series, all will be posted as a response
> > to this one.  If anyone has any issues with these being applied, please
> > let me know.
> >
> > Responses should be made by Thu, 03 Aug 2023 09:18:38 +0000.
> > Anything received after that time might be too late.
> >
> > The whole patch series can be found in one patch at:
> >         https://www.kernel.org/pub/linux/kernel/v5.x/stable-review/patch-5.15.124-rc1.gz
> > or in the git tree and branch at:
> >         git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git linux-5.15.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
> 
> Following patch caused build regression on stable-rc 5.15 and stable-rc 6.1,
> 
> Regressions found on arm:
> 
>   - build/gcc-12-orion5x_defconfig
>   - build/clang-nightly-orion5x_defconfig
>   - build/gcc-8-orion5x_defconfig
>   - build/clang-16-orion5x_defconfig
> 
> gpio: mvebu: Make use of devm_pwmchip_add
> [ Upstream commit 1945063eb59e64d2919cb14d54d081476d9e53bb ]
> 
> Build log:
> ------
> drivers/gpio/gpio-mvebu.c: In function 'mvebu_pwm_probe':
> drivers/gpio/gpio-mvebu.c:877:16: error: implicit declaration of
> function 'devm_pwmchip_add'; did you mean 'pwmchip_add'?
> [-Werror=implicit-function-declaration]
>   877 |         return devm_pwmchip_add(dev, &mvpwm->chip);
>       |                ^~~~~~~~~~~~~~~~
>       |                pwmchip_add
> cc1: some warnings being treated as errors
> 
> Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>

Ah, looks like 88da4e811311 ("pwm: Add a stub for devm_pwmchip_add()")
is needed, I'll queue that up for 5.15 and 6.1 and push out new -rc
releases.

thanks,

greg k-h