[PATCH 6.12 000/122] 6.12.11-rc1 review

[PATCH 6.12 000/122] 6.12.11-rc1 review

[Greg Kroah-Hartman]

This is the start of the stable review cycle for the 6.12.11 release.
There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
and the diffstat can be found below.

thanks,

greg k-h

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

Greg Kroah-Hartman <gregkh@linuxfoundation.org>
    Linux 6.12.11-rc1

Ryan Lee <ryan.lee@canonical.com>
    apparmor: allocate xmatch for nullpdb inside aa_alloc_null

Wayne Lin <Wayne.Lin@amd.com>
    drm/amd/display: Validate mdoe under MST LCT=1 case as well

Nicholas Susanto <Nicholas.Susanto@amd.com>
    Revert "drm/amd/display: Enable urgent latency adjustments for DCN35"

Leo Li <sunpeng.li@amd.com>
    drm/amd/display: Do not wait for PSR disable on vbl enable

Tom Chung <chiahsuan.chung@amd.com>
    drm/amd/display: Disable replay and psr while VRR is enabled

Tom Chung <chiahsuan.chung@amd.com>
    drm/amd/display: Fix PSR-SU not support but still call the amdgpu_dm_psr_enable

Christian König <christian.koenig@amd.com>
    drm/amdgpu: always sync the GFX pipe on ctx switch

Kenneth Feng <kenneth.feng@amd.com>
    drm/amdgpu: disable gfxoff with the compute workload on gfx12

Gui Chengming <Jack.Gui@amd.com>
    drm/amdgpu: fix fw attestation for MP0_14_0_{2/3}

Alex Deucher <alexander.deucher@amd.com>
    drm/amdgpu/smu13: update powersave optimizations

Ashutosh Dixit <ashutosh.dixit@intel.com>
    drm/xe/oa: Add missing VISACTL mux registers

Matthew Brost <matthew.brost@intel.com>
    drm/xe: Mark ComputeCS read mode as UC on iGPU

Ville Syrjälä <ville.syrjala@linux.intel.com>
    drm/i915/fb: Relax clear color alignment to 64 bytes

Xin Li (Intel) <xin@zytor.com>
    x86/fred: Fix the FRED RSP0 MSR out of sync with its per-CPU cache

Frederic Weisbecker <frederic@kernel.org>
    timers/migration: Enforce group initialization visibility to tree walkers

Frederic Weisbecker <frederic@kernel.org>
    timers/migration: Fix another race between hotplug and idle entry/exit

Koichiro Den <koichiro.den@canonical.com>
    hrtimers: Handle CPU state correctly on hotplug

Tomas Krcka <krckatom@amazon.de>
    irqchip/gic-v3-its: Don't enable interrupts in its_irq_set_vcpu_affinity()

Yogesh Lal <quic_ylal@quicinc.com>
    irqchip/gic-v3: Handle CPU_PM_ENTER_FAILED correctly

Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
    irqchip: Plug a OF node reference leak in platform_irqchip_probe()

Steven Rostedt <rostedt@goodmis.org>
    tracing: gfp: Fix the GFP enum values shown for user space tracing tools

Donet Tom <donettom@linux.ibm.com>
    mm: vmscan : pgdemote vmstat is not getting updated when MGLRU is enabled.

Ryan Roberts <ryan.roberts@arm.com>
    mm: clear uffd-wp PTE/PMD state on mremap()

Leo Li <sunpeng.li@amd.com>
    drm/amd/display: Do not elevate mem_type change to full update

Ryan Roberts <ryan.roberts@arm.com>
    selftests/mm: set allocated memory to non-zero content in cow test

Guo Weikang <guoweikang.kernel@gmail.com>
    mm/kmemleak: fix percpu memory leak detection failure

Xiaolei Wang <xiaolei.wang@windriver.com>
    pmdomain: imx8mp-blk-ctrl: add missing loop break condition

Suren Baghdasaryan <surenb@google.com>
    tools: fix atomic_set() definition to set the value correctly

Sean Anderson <sean.anderson@linux.dev>
    gpio: xilinx: Convert gpio_lock to raw spinlock

Rik van Riel <riel@surriel.com>
    fs/proc: fix softlockup in __read_vmcore (part 2)

Marco Nelissen <marco.nelissen@gmail.com>
    filemap: avoid truncating 64-bit offset to 32 bits

Paul Fertser <fercerpav@gmail.com>
    net/ncsi: fix locking in Get MAC Address handling

Takashi Iwai <tiwai@suse.de>
    drm/nouveau/disp: Fix missing backlight control on Macbook 5,1

Dave Airlie <airlied@redhat.com>
    nouveau/fence: handle cross device fences properly

Stefano Garzarella <sgarzare@redhat.com>
    vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]

Stefano Garzarella <sgarzare@redhat.com>
    vsock: reset socket state when de-assigning the transport

Stefano Garzarella <sgarzare@redhat.com>
    vsock/virtio: cancel close work in the destructor

Stefano Garzarella <sgarzare@redhat.com>
    vsock/virtio: discard packets if the transport changes

Stefano Garzarella <sgarzare@redhat.com>
    vsock/bpf: return early if transport is not assigned

Heiner Kallweit <hkallweit1@gmail.com>
    net: ethernet: xgbe: re-add aneg to supported features in PHY quirks

Paolo Abeni <pabeni@redhat.com>
    selftests: mptcp: avoid spurious errors on disconnect

Paolo Abeni <pabeni@redhat.com>
    mptcp: fix spurious wake-up on under memory pressure

Paolo Abeni <pabeni@redhat.com>
    mptcp: be sure to send ack when mptcp-level window re-opens

Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
    i2c: atr: Fix client detach

Kairui Song <kasong@tencent.com>
    zram: fix potential UAF of zram table

Luke D. Jones <luke@ljones.dev>
    ALSA: hda/realtek: fixup ASUS H7606W

Luke D. Jones <luke@ljones.dev>
    ALSA: hda/realtek: fixup ASUS GA605W

Stefan Binding <sbinding@opensource.cirrus.com>
    ALSA: hda/realtek: Add support for Ayaneo System using CS35L41 HDA

Juergen Gross <jgross@suse.com>
    x86/asm: Make serialize() always_inline

Peter Zijlstra <peterz@infradead.org>
    sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE

Peter Zijlstra <peterz@infradead.org>
    sched/fair: Fix EEVDF entity placement bug causing scheduling lag

Luis Chamberlain <mcgrof@kernel.org>
    nvmet: propagate npwg topology

Tejun Heo <tj@kernel.org>
    sched_ext: Fix dsq_local_on selftest

Hongguang Gao <hongguang.gao@broadcom.com>
    RDMA/bnxt_re: Fix to export port num to ib_query_qp

David Vernet <void@manifault.com>
    scx: Fix maximal BPF selftest prog

Ihor Solodrai <ihor.solodrai@pm.me>
    selftests/sched_ext: fix build after renames in sched_ext API

Oleg Nesterov <oleg@redhat.com>
    poll_wait: add mb() to fix theoretical race between waitqueue_active() and .poll()

Lizhi Xu <lizhi.xu@windriver.com>
    afs: Fix merge preference rule failure condition

Marco Nelissen <marco.nelissen@gmail.com>
    iomap: avoid avoid truncating 64-bit offset to 32 bits

Henry Huang <henry.hj@antgroup.com>
    sched_ext: keep running prev when prev->scx.slice != 0

Hans de Goede <hdegoede@redhat.com>
    ACPI: resource: acpi_dev_irq_override(): Check DMI match last

Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
    platform/x86: ISST: Add Clearwater Forest to support list

Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
    platform/x86/intel: power-domains: Add Clearwater Forest support

Jakub Kicinski <kuba@kernel.org>
    selftests: tc-testing: reduce rshift value

Koichiro Den <koichiro.den@canonical.com>
    gpio: sim: lock up configfs that an instantiated device depends on

Koichiro Den <koichiro.den@canonical.com>
    gpio: virtuser: lock up configfs that an instantiated device depends on

Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
    scsi: ufs: core: Honor runtime/system PM levels if set by host controller drivers

Max Kellermann <max.kellermann@ionos.com>
    cachefiles: Parse the "secctx" immediately

David Howells <dhowells@redhat.com>
    netfs: Fix non-contiguous donation between completed reads

David Howells <dhowells@redhat.com>
    kheaders: Ignore silly-rename files

Zhang Kunbo <zhangkunbo@huawei.com>
    fs: fix missing declaration of init_files

Brahmajit Das <brahmajit.xyz@gmail.com>
    fs/qnx6: Fix building with GCC 15

Leo Stone <leocstone@gmail.com>
    hfs: Sanity check the root record

Lizhi Xu <lizhi.xu@windriver.com>
    mac802154: check local interfaces before deleting sdata list

Paulo Alcantara <pc@manguebit.com>
    smb: client: fix double free of TCP_Server_Info::hostname

David Lechner <dlechner@baylibre.com>
    hwmon: (ltc2991) Fix mixed signed/unsigned in DIV_ROUND_CLOSEST

Wolfram Sang <wsa+renesas@sang-engineering.com>
    i2c: testunit: on errors, repeat NACK until STOP

Wolfram Sang <wsa+renesas@sang-engineering.com>
    i2c: rcar: fix NACK handling when being a target

Wolfram Sang <wsa+renesas@sang-engineering.com>
    i2c: mux: demux-pinctrl: check initial mux selection, too

Pratyush Yadav <pratyush@kernel.org>
    Revert "mtd: spi-nor: core: replace dummy buswidth from addr to data"

David Lechner <dlechner@baylibre.com>
    hwmon: (tmp513) Fix division of negative numbers

Chenyuan Yang <chenyuan0y@gmail.com>
    platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race

Chenyuan Yang <chenyuan0y@gmail.com>
    platform/x86: dell-uart-backlight: fix serdev race

Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
    i2c: core: fix reference leak in i2c_register_adapter()

MD Danish Anwar <danishanwar@ti.com>
    soc: ti: pruss: Fix pruss APIs

Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
    reset: rzg2l-usbphy-ctrl: Assign proper of node to the allocated device

Maíra Canal <mcanal@igalia.com>
    drm/v3d: Ensure job pointer is set to NULL after job completion

Ian Forbes <ian.forbes@broadcom.com>
    drm/vmwgfx: Add new keep_resv BO param

Ian Forbes <ian.forbes@broadcom.com>
    drm/vmwgfx: Unreserve BO on error

Yu-Chun Lin <eleanor15x@gmail.com>
    drm/tests: helpers: Fix compiler warning

Jakub Kicinski <kuba@kernel.org>
    netdev: avoid CFI problems with sock priv helpers

Leon Romanovsky <leon@kernel.org>
    net/mlx5e: Always start IPsec sequence number from 1

Leon Romanovsky <leon@kernel.org>
    net/mlx5e: Rely on reqid in IPsec tunnel mode

Leon Romanovsky <leon@kernel.org>
    net/mlx5e: Fix inversion dependency warning while enabling IPsec tunnel

Mark Zhang <markzhang@nvidia.com>
    net/mlx5: Clear port select structure when fail to create

Chris Mi <cmi@nvidia.com>
    net/mlx5: SF, Fix add port error handling

Yishai Hadas <yishaih@nvidia.com>
    net/mlx5: Fix a lockdep warning as part of the write combining test

Patrisious Haddad <phaddad@nvidia.com>
    net/mlx5: Fix RDMA TX steering prio

Pavel Begunkov <asml.silence@gmail.com>
    net: make page_pool_ref_netmem work with net iovs

Kevin Groeneveld <kgroeneveld@lenbrook.com>
    net: fec: handle page_pool_dev_alloc_pages error

Sean Anderson <sean.anderson@linux.dev>
    net: xilinx: axienet: Fix IRQ coalescing packet count overflow

Dan Carpenter <dan.carpenter@linaro.org>
    nfp: bpf: prevent integer overflow in nfp_bpf_event_output()

Viresh Kumar <viresh.kumar@linaro.org>
    cpufreq: Move endif to the end of Kconfig file

Kuniyuki Iwashima <kuniyu@amazon.com>
    pfcp: Destroy device along with udp socket's netns dismantle.

Kuniyuki Iwashima <kuniyu@amazon.com>
    gtp: Destroy device along with udp socket's netns dismantle.

Kuniyuki Iwashima <kuniyu@amazon.com>
    gtp: Use for_each_netdev_rcu() in gtp_genl_dump_pdp().

Qu Wenruo <wqu@suse.com>
    btrfs: add the missing error handling inside get_canonical_dev_path

Rafael J. Wysocki <rafael.j.wysocki@intel.com>
    cpuidle: teo: Update documentation after previous changes

Karol Kolacinski <karol.kolacinski@intel.com>
    ice: Add correct PHY lane assignment

Sergey Temerkhanov <sergey.temerkhanov@intel.com>
    ice: Use ice_adapter for PTP shared data instead of auxdev

Sergey Temerkhanov <sergey.temerkhanov@intel.com>
    ice: Add ice_get_ctrl_ptp() wrapper to simplify the code

Sergey Temerkhanov <sergey.temerkhanov@intel.com>
    ice: Introduce ice_get_phy_model() wrapper

Karol Kolacinski <karol.kolacinski@intel.com>
    ice: Fix ETH56G FC-FEC Rx offset value

Karol Kolacinski <karol.kolacinski@intel.com>
    ice: Fix quad registers read on E825

Karol Kolacinski <karol.kolacinski@intel.com>
    ice: Fix E825 initialization

Artem Chernyshev <artem.chernyshev@red-soft.ru>
    pktgen: Avoid out-of-bounds access in get_imix_entries

Ilya Maximets <i.maximets@ovn.org>
    openvswitch: fix lockup on tx to unregistering netdev with carrier

Paul Barker <paul.barker.ct@bp.renesas.com>
    net: ravb: Fix max TX frame size for RZ/V2M

Jakub Kicinski <kuba@kernel.org>
    eth: bnxt: always recalculate features after XDP clearing, fix null-deref

Michal Luczaj <mhal@rbox.co>
    bpf: Fix bpf_sk_select_reuseport() memory leak

Sudheer Kumar Doredla <s-doredla@ti.com>
    net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field()

Ard Biesheuvel <ardb@kernel.org>
    efi/zboot: Limit compression options to GZIP and ZSTD


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

Diffstat:

 Makefile                                           |   4 +-
 arch/x86/include/asm/special_insns.h               |   2 +-
 arch/x86/kernel/fred.c                             |   8 +-
 drivers/acpi/resource.c                            |   6 +-
 drivers/block/zram/zram_drv.c                      |   1 +
 drivers/cpufreq/Kconfig                            |   4 +-
 drivers/cpuidle/governors/teo.c                    |  91 +++----
 drivers/firmware/efi/Kconfig                       |   4 -
 drivers/firmware/efi/libstub/Makefile.zboot        |  18 +-
 drivers/gpio/gpio-sim.c                            |  48 +++-
 drivers/gpio/gpio-virtuser.c                       |  49 +++-
 drivers/gpio/gpio-xilinx.c                         |  32 +--
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c         |   5 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c |   4 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c             |   4 +-
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c  |  41 ++-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c  |  25 +-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c |   4 +-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h |   2 +-
 .../drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c  |   2 +-
 .../amd/display/amdgpu_dm/amdgpu_dm_mst_types.c    |  14 +-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c  |  35 ++-
 .../gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h  |   3 +-
 .../gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c   |   4 +-
 .../gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c   |  11 +-
 drivers/gpu/drm/i915/display/intel_fb.c            |   2 +-
 drivers/gpu/drm/nouveau/nouveau_fence.c            |   6 +-
 drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c   |   1 +
 drivers/gpu/drm/tests/drm_kunit_helpers.c          |   3 +-
 drivers/gpu/drm/v3d/v3d_irq.c                      |   4 +
 drivers/gpu/drm/vmwgfx/vmwgfx_bo.c                 |   3 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_bo.h                 |   3 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c                |   7 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_gem.c                |   1 +
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c                |  20 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_shader.c             |   7 +-
 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c         |   5 +-
 drivers/gpu/drm/xe/xe_hw_engine.c                  |   2 +-
 drivers/gpu/drm/xe/xe_oa.c                         |   1 +
 drivers/hwmon/ltc2991.c                            |   2 +-
 drivers/hwmon/tmp513.c                             |   7 +-
 drivers/i2c/busses/i2c-rcar.c                      |  20 +-
 drivers/i2c/i2c-atr.c                              |   2 +-
 drivers/i2c/i2c-core-base.c                        |   1 +
 drivers/i2c/i2c-slave-testunit.c                   |  19 +-
 drivers/i2c/muxes/i2c-demux-pinctrl.c              |   4 +-
 drivers/infiniband/hw/bnxt_re/ib_verbs.c           |   1 +
 drivers/infiniband/hw/bnxt_re/ib_verbs.h           |   4 +
 drivers/infiniband/hw/bnxt_re/qplib_fp.c           |   1 +
 drivers/infiniband/hw/bnxt_re/qplib_fp.h           |   1 +
 drivers/irqchip/irq-gic-v3-its.c                   |   2 +-
 drivers/irqchip/irq-gic-v3.c                       |   2 +-
 drivers/irqchip/irqchip.c                          |   4 +-
 drivers/mtd/spi-nor/core.c                         |   2 +-
 drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c        |  19 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt.c          |  25 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt.h          |   2 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c      |   7 -
 drivers/net/ethernet/freescale/fec_main.c          |  19 +-
 drivers/net/ethernet/intel/ice/ice.h               |   5 +
 drivers/net/ethernet/intel/ice/ice_adapter.c       |   6 +
 drivers/net/ethernet/intel/ice/ice_adapter.h       |  22 +-
 drivers/net/ethernet/intel/ice/ice_adminq_cmd.h    |   1 +
 drivers/net/ethernet/intel/ice/ice_common.c        |  51 ++++
 drivers/net/ethernet/intel/ice/ice_common.h        |   1 +
 drivers/net/ethernet/intel/ice/ice_main.c          |   6 +-
 drivers/net/ethernet/intel/ice/ice_ptp.c           | 165 +++++++-----
 drivers/net/ethernet/intel/ice/ice_ptp.h           |   9 +-
 drivers/net/ethernet/intel/ice/ice_ptp_consts.h    |   2 +-
 drivers/net/ethernet/intel/ice/ice_ptp_hw.c        | 285 +++++++++++----------
 drivers/net/ethernet/intel/ice/ice_ptp_hw.h        |   5 +
 drivers/net/ethernet/intel/ice/ice_type.h          |   2 -
 .../ethernet/mellanox/mlx5/core/en_accel/ipsec.c   |  22 +-
 .../mellanox/mlx5/core/en_accel/ipsec_fs.c         |  12 +-
 .../mellanox/mlx5/core/en_accel/ipsec_offload.c    |  11 +-
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c  |   1 +
 .../net/ethernet/mellanox/mlx5/core/lag/port_sel.c |   4 +-
 .../net/ethernet/mellanox/mlx5/core/sf/devlink.c   |   1 +
 drivers/net/ethernet/mellanox/mlx5/core/wc.c       |  24 +-
 drivers/net/ethernet/netronome/nfp/bpf/offload.c   |   3 +-
 drivers/net/ethernet/renesas/ravb_main.c           |   1 +
 drivers/net/ethernet/ti/cpsw_ale.c                 |  14 +-
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c  |   6 +
 drivers/net/gtp.c                                  |  26 +-
 drivers/net/pfcp.c                                 |  15 +-
 drivers/nvme/target/io-cmd-bdev.c                  |   2 +-
 drivers/platform/x86/dell/dell-uart-backlight.c    |   5 +-
 .../x86/intel/speed_select_if/isst_if_common.c     |   1 +
 drivers/platform/x86/intel/tpmi_power_domains.c    |   1 +
 .../x86/lenovo-yoga-tab2-pro-1380-fastcharger.c    |   5 +-
 drivers/pmdomain/imx/imx8mp-blk-ctrl.c             |   2 +-
 drivers/reset/reset-rzg2l-usbphy-ctrl.c            |   1 +
 drivers/ufs/core/ufshcd.c                          |   9 +-
 fs/afs/addr_prefs.c                                |   6 +-
 fs/btrfs/volumes.c                                 |   4 +
 fs/cachefiles/daemon.c                             |  14 +-
 fs/cachefiles/internal.h                           |   3 +-
 fs/cachefiles/security.c                           |   6 +-
 fs/file.c                                          |   1 +
 fs/hfs/super.c                                     |   4 +-
 fs/iomap/buffered-io.c                             |   2 +-
 fs/netfs/read_collect.c                            |   9 +-
 fs/proc/vmcore.c                                   |   2 +
 fs/qnx6/inode.c                                    |  11 +-
 fs/smb/client/connect.c                            |   3 +-
 include/linux/hrtimer.h                            |   1 +
 include/linux/poll.h                               |  10 +-
 include/linux/pruss_driver.h                       |  12 +-
 include/linux/userfaultfd_k.h                      |  12 +
 include/net/page_pool/helpers.h                    |   2 +-
 include/trace/events/mmflags.h                     |  63 +++++
 kernel/cpu.c                                       |   2 +-
 kernel/gen_kheaders.sh                             |   1 +
 kernel/sched/ext.c                                 |  11 +-
 kernel/sched/fair.c                                | 151 ++---------
 kernel/time/hrtimer.c                              |  11 +-
 kernel/time/timer_migration.c                      |  43 +++-
 mm/filemap.c                                       |   2 +-
 mm/huge_memory.c                                   |  12 +
 mm/hugetlb.c                                       |  14 +-
 mm/kmemleak.c                                      |   2 +-
 mm/mremap.c                                        |  32 ++-
 mm/vmscan.c                                        |   3 +
 net/core/filter.c                                  |  30 ++-
 net/core/netdev-genl-gen.c                         |  14 +-
 net/core/pktgen.c                                  |   6 +-
 net/mac802154/iface.c                              |   4 +
 net/mptcp/options.c                                |   6 +-
 net/mptcp/protocol.h                               |   9 +-
 net/ncsi/internal.h                                |   2 +
 net/ncsi/ncsi-manage.c                             |  16 +-
 net/ncsi/ncsi-rsp.c                                |  19 +-
 net/openvswitch/actions.c                          |   4 +-
 net/vmw_vsock/af_vsock.c                           |  18 ++
 net/vmw_vsock/virtio_transport_common.c            |  38 ++-
 net/vmw_vsock/vsock_bpf.c                          |   9 +
 security/apparmor/policy.c                         |   1 +
 sound/pci/hda/patch_realtek.c                      |   3 +
 tools/net/ynl/ynl-gen-c.py                         |  16 +-
 tools/testing/selftests/mm/cow.c                   |   8 +-
 tools/testing/selftests/net/mptcp/mptcp_connect.c  |  43 +++-
 .../selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c  |   2 +-
 .../selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c |   4 +-
 .../testing/selftests/sched_ext/dsp_local_on.bpf.c |   7 +-
 tools/testing/selftests/sched_ext/dsp_local_on.c   |   5 +-
 .../selftests/sched_ext/enq_select_cpu_fails.bpf.c |   2 +-
 tools/testing/selftests/sched_ext/exit.bpf.c       |   4 +-
 tools/testing/selftests/sched_ext/maximal.bpf.c    |   8 +-
 .../selftests/sched_ext/select_cpu_dfl.bpf.c       |   2 +-
 .../sched_ext/select_cpu_dfl_nodispatch.bpf.c      |   2 +-
 .../selftests/sched_ext/select_cpu_dispatch.bpf.c  |   2 +-
 .../sched_ext/select_cpu_dispatch_bad_dsq.bpf.c    |   2 +-
 .../sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c    |   4 +-
 .../selftests/sched_ext/select_cpu_vtime.bpf.c     |   8 +-
 .../tc-testing/tc-tests/filters/flow.json          |   4 +-
 tools/testing/shared/linux/maple_tree.h            |   2 +-
 tools/testing/vma/linux/atomic.h                   |   2 +-
 157 files changed, 1345 insertions(+), 766 deletions(-)

[PATCH 6.12 001/122] efi/zboot: Limit compression options to GZIP and ZSTD

[Greg Kroah-Hartman]

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

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

From: Ard Biesheuvel <ardb@kernel.org>

commit 0b2c29fb68f8bf3e87a9d88404aa6fdd486223e5 upstream.

For historical reasons, the legacy decompressor code on various
architectures supports 7 different compression types for the compressed
kernel image.

EFI zboot is not a compression library museum, and so the options can be
limited to what is likely to be useful in practice:

- GZIP is tried and tested, and is still one of the fastest at
  decompression time, although the compression ratio is not very high;
  moreover, Fedora is already shipping EFI zboot kernels for arm64 that
  use GZIP, and QEMU implements direct support for it when booting a
  kernel without firmware loaded;

- ZSTD has a very high compression ratio (although not the highest), and
  is almost as fast as GZIP at decompression time.

Reducing the number of options makes it less of a hassle for other
consumers of the EFI zboot format (such as QEMU today, and kexec in the
future) to support it transparently without having to carry 7 different
decompression libraries.

Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/firmware/efi/Kconfig                |    4 ----
 drivers/firmware/efi/libstub/Makefile.zboot |   18 ++++++------------
 2 files changed, 6 insertions(+), 16 deletions(-)

--- a/drivers/firmware/efi/Kconfig
+++ b/drivers/firmware/efi/Kconfig
@@ -76,10 +76,6 @@ config EFI_ZBOOT
 	bool "Enable the generic EFI decompressor"
 	depends on EFI_GENERIC_STUB && !ARM
 	select HAVE_KERNEL_GZIP
-	select HAVE_KERNEL_LZ4
-	select HAVE_KERNEL_LZMA
-	select HAVE_KERNEL_LZO
-	select HAVE_KERNEL_XZ
 	select HAVE_KERNEL_ZSTD
 	help
 	  Create the bootable image as an EFI application that carries the
--- a/drivers/firmware/efi/libstub/Makefile.zboot
+++ b/drivers/firmware/efi/libstub/Makefile.zboot
@@ -12,22 +12,16 @@ quiet_cmd_copy_and_pad = PAD     $@
 $(obj)/vmlinux.bin: $(obj)/$(EFI_ZBOOT_PAYLOAD) FORCE
 	$(call if_changed,copy_and_pad)
 
-comp-type-$(CONFIG_KERNEL_GZIP)		:= gzip
-comp-type-$(CONFIG_KERNEL_LZ4)		:= lz4
-comp-type-$(CONFIG_KERNEL_LZMA)		:= lzma
-comp-type-$(CONFIG_KERNEL_LZO)		:= lzo
-comp-type-$(CONFIG_KERNEL_XZ)		:= xzkern
-comp-type-$(CONFIG_KERNEL_ZSTD)		:= zstd22
-
 # in GZIP, the appended le32 carrying the uncompressed size is part of the
 # format, but in other cases, we just append it at the end for convenience,
 # causing the original tools to complain when checking image integrity.
-# So disregard it when calculating the payload size in the zimage header.
-zboot-method-y                         := $(comp-type-y)_with_size
-zboot-size-len-y                       := 4
+comp-type-y				:= gzip
+zboot-method-y				:= gzip
+zboot-size-len-y			:= 0
 
-zboot-method-$(CONFIG_KERNEL_GZIP)     := gzip
-zboot-size-len-$(CONFIG_KERNEL_GZIP)   := 0
+comp-type-$(CONFIG_KERNEL_ZSTD)		:= zstd
+zboot-method-$(CONFIG_KERNEL_ZSTD)	:= zstd22_with_size
+zboot-size-len-$(CONFIG_KERNEL_ZSTD)	:= 4
 
 $(obj)/vmlinuz: $(obj)/vmlinux.bin FORCE
 	$(call if_changed,$(zboot-method-y))

[PATCH 6.12 002/122] net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field()

[Greg Kroah-Hartman]

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

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

From: Sudheer Kumar Doredla <s-doredla@ti.com>

[ Upstream commit 03d120f27d050336f7e7d21879891542c4741f81 ]

CPSW ALE has 75-bit ALE entries stored across three 32-bit words.
The cpsw_ale_get_field() and cpsw_ale_set_field() functions support
ALE field entries spanning up to two words at the most.

The cpsw_ale_get_field() and cpsw_ale_set_field() functions work as
expected when ALE field spanned across word1 and word2, but fails when
ALE field spanned across word2 and word3.

For example, while reading the ALE field spanned across word2 and word3
(i.e. bits 62 to 64), the word3 data shifted to an incorrect position
due to the index becoming zero while flipping.
The same issue occurred when setting an ALE entry.

This issue has not been seen in practice but will be an issue in the future
if the driver supports accessing ALE fields spanning word2 and word3

Fix the methods to handle getting/setting fields spanning up to two words.

Fixes: b685f1a58956 ("net: ethernet: ti: cpsw_ale: Fix cpsw_ale_get_field()/cpsw_ale_set_field()")
Signed-off-by: Sudheer Kumar Doredla <s-doredla@ti.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Reviewed-by: Siddharth Vadapalli <s-vadapalli@ti.com>
Link: https://patch.msgid.link/20250108172433.311694-1-s-doredla@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/ti/cpsw_ale.c | 14 +++++++-------
 1 file changed, 7 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index 8d02d2b214293..dc5e247ca5d1a 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -127,15 +127,15 @@ struct cpsw_ale_dev_id {
 
 static inline int cpsw_ale_get_field(u32 *ale_entry, u32 start, u32 bits)
 {
-	int idx, idx2;
+	int idx, idx2, index;
 	u32 hi_val = 0;
 
 	idx    = start / 32;
 	idx2 = (start + bits - 1) / 32;
 	/* Check if bits to be fetched exceed a word */
 	if (idx != idx2) {
-		idx2 = 2 - idx2; /* flip */
-		hi_val = ale_entry[idx2] << ((idx2 * 32) - start);
+		index = 2 - idx2; /* flip */
+		hi_val = ale_entry[index] << ((idx2 * 32) - start);
 	}
 	start -= idx * 32;
 	idx    = 2 - idx; /* flip */
@@ -145,16 +145,16 @@ static inline int cpsw_ale_get_field(u32 *ale_entry, u32 start, u32 bits)
 static inline void cpsw_ale_set_field(u32 *ale_entry, u32 start, u32 bits,
 				      u32 value)
 {
-	int idx, idx2;
+	int idx, idx2, index;
 
 	value &= BITMASK(bits);
 	idx = start / 32;
 	idx2 = (start + bits - 1) / 32;
 	/* Check if bits to be set exceed a word */
 	if (idx != idx2) {
-		idx2 = 2 - idx2; /* flip */
-		ale_entry[idx2] &= ~(BITMASK(bits + start - (idx2 * 32)));
-		ale_entry[idx2] |= (value >> ((idx2 * 32) - start));
+		index = 2 - idx2; /* flip */
+		ale_entry[index] &= ~(BITMASK(bits + start - (idx2 * 32)));
+		ale_entry[index] |= (value >> ((idx2 * 32) - start));
 	}
 	start -= idx * 32;
 	idx = 2 - idx; /* flip */
-- 
2.39.5

[PATCH 6.12 003/122] bpf: Fix bpf_sk_select_reuseport() memory leak

[Greg Kroah-Hartman]

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

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

From: Michal Luczaj <mhal@rbox.co>

[ Upstream commit b3af60928ab9129befa65e6df0310d27300942bf ]

As pointed out in the original comment, lookup in sockmap can return a TCP
ESTABLISHED socket. Such TCP socket may have had SO_ATTACH_REUSEPORT_EBPF
set before it was ESTABLISHED. In other words, a non-NULL sk_reuseport_cb
does not imply a non-refcounted socket.

Drop sk's reference in both error paths.

unreferenced object 0xffff888101911800 (size 2048):
  comm "test_progs", pid 44109, jiffies 4297131437
  hex dump (first 32 bytes):
    00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
    80 00 01 00 00 00 00 00 00 00 00 00 00 00 00 00  ................
  backtrace (crc 9336483b):
    __kmalloc_noprof+0x3bf/0x560
    __reuseport_alloc+0x1d/0x40
    reuseport_alloc+0xca/0x150
    reuseport_attach_prog+0x87/0x140
    sk_reuseport_attach_bpf+0xc8/0x100
    sk_setsockopt+0x1181/0x1990
    do_sock_setsockopt+0x12b/0x160
    __sys_setsockopt+0x7b/0xc0
    __x64_sys_setsockopt+0x1b/0x30
    do_syscall_64+0x93/0x180
    entry_SYSCALL_64_after_hwframe+0x76/0x7e

Fixes: 64d85290d79c ("bpf: Allow bpf_map_lookup_elem for SOCKMAP and SOCKHASH")
Signed-off-by: Michal Luczaj <mhal@rbox.co>
Reviewed-by: Martin KaFai Lau <martin.lau@kernel.org>
Link: https://patch.msgid.link/20250110-reuseport-memleak-v1-1-fa1ddab0adfe@rbox.co
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/filter.c | 30 ++++++++++++++++++------------
 1 file changed, 18 insertions(+), 12 deletions(-)

diff --git a/net/core/filter.c b/net/core/filter.c
index 54a53fae9e98f..46da488ff0703 100644
--- a/net/core/filter.c
+++ b/net/core/filter.c
@@ -11263,6 +11263,7 @@ BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
 	bool is_sockarray = map->map_type == BPF_MAP_TYPE_REUSEPORT_SOCKARRAY;
 	struct sock_reuseport *reuse;
 	struct sock *selected_sk;
+	int err;
 
 	selected_sk = map->ops->map_lookup_elem(map, key);
 	if (!selected_sk)
@@ -11270,10 +11271,6 @@ BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
 
 	reuse = rcu_dereference(selected_sk->sk_reuseport_cb);
 	if (!reuse) {
-		/* Lookup in sock_map can return TCP ESTABLISHED sockets. */
-		if (sk_is_refcounted(selected_sk))
-			sock_put(selected_sk);
-
 		/* reuseport_array has only sk with non NULL sk_reuseport_cb.
 		 * The only (!reuse) case here is - the sk has already been
 		 * unhashed (e.g. by close()), so treat it as -ENOENT.
@@ -11281,24 +11278,33 @@ BPF_CALL_4(sk_select_reuseport, struct sk_reuseport_kern *, reuse_kern,
 		 * Other maps (e.g. sock_map) do not provide this guarantee and
 		 * the sk may never be in the reuseport group to begin with.
 		 */
-		return is_sockarray ? -ENOENT : -EINVAL;
+		err = is_sockarray ? -ENOENT : -EINVAL;
+		goto error;
 	}
 
 	if (unlikely(reuse->reuseport_id != reuse_kern->reuseport_id)) {
 		struct sock *sk = reuse_kern->sk;
 
-		if (sk->sk_protocol != selected_sk->sk_protocol)
-			return -EPROTOTYPE;
-		else if (sk->sk_family != selected_sk->sk_family)
-			return -EAFNOSUPPORT;
-
-		/* Catch all. Likely bound to a different sockaddr. */
-		return -EBADFD;
+		if (sk->sk_protocol != selected_sk->sk_protocol) {
+			err = -EPROTOTYPE;
+		} else if (sk->sk_family != selected_sk->sk_family) {
+			err = -EAFNOSUPPORT;
+		} else {
+			/* Catch all. Likely bound to a different sockaddr. */
+			err = -EBADFD;
+		}
+		goto error;
 	}
 
 	reuse_kern->selected_sk = selected_sk;
 
 	return 0;
+error:
+	/* Lookup in sock_map can return TCP ESTABLISHED sockets. */
+	if (sk_is_refcounted(selected_sk))
+		sock_put(selected_sk);
+
+	return err;
 }
 
 static const struct bpf_func_proto sk_select_reuseport_proto = {
-- 
2.39.5

[PATCH 6.12 004/122] eth: bnxt: always recalculate features after XDP clearing, fix null-deref

[Greg Kroah-Hartman]

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

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

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit f0aa6a37a3dbb40b272df5fc6db93c114688adcd ]

Recalculate features when XDP is detached.

Before:
  # ip li set dev eth0 xdp obj xdp_dummy.bpf.o sec xdp
  # ip li set dev eth0 xdp off
  # ethtool -k eth0 | grep gro
  rx-gro-hw: off [requested on]

After:
  # ip li set dev eth0 xdp obj xdp_dummy.bpf.o sec xdp
  # ip li set dev eth0 xdp off
  # ethtool -k eth0 | grep gro
  rx-gro-hw: on

The fact that HW-GRO doesn't get re-enabled automatically is just
a minor annoyance. The real issue is that the features will randomly
come back during another reconfiguration which just happens to invoke
netdev_update_features(). The driver doesn't handle reconfiguring
two things at a time very robustly.

Starting with commit 98ba1d931f61 ("bnxt_en: Fix RSS logic in
__bnxt_reserve_rings()") we only reconfigure the RSS hash table
if the "effective" number of Rx rings has changed. If HW-GRO is
enabled "effective" number of rings is 2x what user sees.
So if we are in the bad state, with HW-GRO re-enablement "pending"
after XDP off, and we lower the rings by / 2 - the HW-GRO rings
doing 2x and the ethtool -L doing / 2 may cancel each other out,
and the:

  if (old_rx_rings != bp->hw_resc.resv_rx_rings &&

condition in __bnxt_reserve_rings() will be false.
The RSS map won't get updated, and we'll crash with:

  BUG: kernel NULL pointer dereference, address: 0000000000000168
  RIP: 0010:__bnxt_hwrm_vnic_set_rss+0x13a/0x1a0
    bnxt_hwrm_vnic_rss_cfg_p5+0x47/0x180
    __bnxt_setup_vnic_p5+0x58/0x110
    bnxt_init_nic+0xb72/0xf50
    __bnxt_open_nic+0x40d/0xab0
    bnxt_open_nic+0x2b/0x60
    ethtool_set_channels+0x18c/0x1d0

As we try to access a freed ring.

The issue is present since XDP support was added, really, but
prior to commit 98ba1d931f61 ("bnxt_en: Fix RSS logic in
__bnxt_reserve_rings()") it wasn't causing major issues.

Fixes: 1054aee82321 ("bnxt_en: Use NETIF_F_GRO_HW.")
Fixes: 98ba1d931f61 ("bnxt_en: Fix RSS logic in __bnxt_reserve_rings()")
Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Link: https://patch.msgid.link/20250109043057.2888953-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c     | 25 +++++++++++++++----
 drivers/net/ethernet/broadcom/bnxt/bnxt.h     |  2 +-
 drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c |  7 ------
 3 files changed, 21 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index c255445e97f3c..603e9c968c44b 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4558,7 +4558,7 @@ void bnxt_set_ring_params(struct bnxt *bp)
 /* Changing allocation mode of RX rings.
  * TODO: Update when extending xdp_rxq_info to support allocation modes.
  */
-int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
+static void __bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
 {
 	struct net_device *dev = bp->dev;
 
@@ -4579,15 +4579,30 @@ int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
 			bp->rx_skb_func = bnxt_rx_page_skb;
 		}
 		bp->rx_dir = DMA_BIDIRECTIONAL;
-		/* Disable LRO or GRO_HW */
-		netdev_update_features(dev);
 	} else {
 		dev->max_mtu = bp->max_mtu;
 		bp->flags &= ~BNXT_FLAG_RX_PAGE_MODE;
 		bp->rx_dir = DMA_FROM_DEVICE;
 		bp->rx_skb_func = bnxt_rx_skb;
 	}
-	return 0;
+}
+
+void bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode)
+{
+	__bnxt_set_rx_skb_mode(bp, page_mode);
+
+	if (!page_mode) {
+		int rx, tx;
+
+		bnxt_get_max_rings(bp, &rx, &tx, true);
+		if (rx > 1) {
+			bp->flags &= ~BNXT_FLAG_NO_AGG_RINGS;
+			bp->dev->hw_features |= NETIF_F_LRO;
+		}
+	}
+
+	/* Update LRO and GRO_HW availability */
+	netdev_update_features(bp->dev);
 }
 
 static void bnxt_free_vnic_attributes(struct bnxt *bp)
@@ -15909,7 +15924,7 @@ static int bnxt_init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	if (bp->max_fltr < BNXT_MAX_FLTR)
 		bp->max_fltr = BNXT_MAX_FLTR;
 	bnxt_init_l2_fltr_tbl(bp);
-	bnxt_set_rx_skb_mode(bp, false);
+	__bnxt_set_rx_skb_mode(bp, false);
 	bnxt_set_tpa_flags(bp);
 	bnxt_set_ring_params(bp);
 	bnxt_rdma_aux_device_init(bp);
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.h b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
index 9e05704d94450..bee645f58d0bd 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.h
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.h
@@ -2796,7 +2796,7 @@ void bnxt_reuse_rx_data(struct bnxt_rx_ring_info *rxr, u16 cons, void *data);
 u32 bnxt_fw_health_readl(struct bnxt *bp, int reg_idx);
 void bnxt_set_tpa_flags(struct bnxt *bp);
 void bnxt_set_ring_params(struct bnxt *);
-int bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode);
+void bnxt_set_rx_skb_mode(struct bnxt *bp, bool page_mode);
 void bnxt_insert_usr_fltr(struct bnxt *bp, struct bnxt_filter_base *fltr);
 void bnxt_del_one_usr_fltr(struct bnxt *bp, struct bnxt_filter_base *fltr);
 int bnxt_hwrm_func_drv_rgtr(struct bnxt *bp, unsigned long *bmap,
diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
index f88b641533fcc..dc51dce209d5f 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt_xdp.c
@@ -422,15 +422,8 @@ static int bnxt_xdp_set(struct bnxt *bp, struct bpf_prog *prog)
 		bnxt_set_rx_skb_mode(bp, true);
 		xdp_features_set_redirect_target(dev, true);
 	} else {
-		int rx, tx;
-
 		xdp_features_clear_redirect_target(dev);
 		bnxt_set_rx_skb_mode(bp, false);
-		bnxt_get_max_rings(bp, &rx, &tx, true);
-		if (rx > 1) {
-			bp->flags &= ~BNXT_FLAG_NO_AGG_RINGS;
-			bp->dev->hw_features |= NETIF_F_LRO;
-		}
 	}
 	bp->tx_nr_rings_xdp = tx_xdp;
 	bp->tx_nr_rings = bp->tx_nr_rings_per_tc * tc + tx_xdp;
-- 
2.39.5

[PATCH 6.12 005/122] net: ravb: Fix max TX frame size for RZ/V2M

[Greg Kroah-Hartman]

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

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

From: Paul Barker <paul.barker.ct@bp.renesas.com>

[ Upstream commit e7e441a4100e4bc90b52f80494a28a9667993975 ]

When tx_max_frame_size was added to struct ravb_hw_info, no value was
set in ravb_rzv2m_hw_info so the default value of zero was used.

The maximum MTU is set by subtracting from tx_max_frame_size to allow
space for headers and frame checksums. As ndev->max_mtu is unsigned,
this subtraction wraps around leading to a ridiculously large positive
value that is obviously incorrect.

Before tx_max_frame_size was introduced, the maximum MTU was based on
rx_max_frame_size. So, we can restore the correct maximum MTU by copying
the rx_max_frame_size value into tx_max_frame_size for RZ/V2M.

Fixes: 1d63864299ca ("net: ravb: Fix maximum TX frame size for GbEth devices")
Signed-off-by: Paul Barker <paul.barker.ct@bp.renesas.com>
Reviewed-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Sergey Shtylyov <s.shtylyov@omp.ru>
Link: https://patch.msgid.link/20250109113706.1409149-1-paul.barker.ct@bp.renesas.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/renesas/ravb_main.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/renesas/ravb_main.c b/drivers/net/ethernet/renesas/ravb_main.c
index 907af4651c553..6f6b0566c65bc 100644
--- a/drivers/net/ethernet/renesas/ravb_main.c
+++ b/drivers/net/ethernet/renesas/ravb_main.c
@@ -2756,6 +2756,7 @@ static const struct ravb_hw_info ravb_rzv2m_hw_info = {
 	.net_features = NETIF_F_RXCSUM,
 	.stats_len = ARRAY_SIZE(ravb_gstrings_stats),
 	.tccr_mask = TCCR_TSRQ0 | TCCR_TSRQ1 | TCCR_TSRQ2 | TCCR_TSRQ3,
+	.tx_max_frame_size = SZ_2K,
 	.rx_max_frame_size = SZ_2K,
 	.rx_buffer_size = SZ_2K +
 			  SKB_DATA_ALIGN(sizeof(struct skb_shared_info)),
-- 
2.39.5

[PATCH 6.12 006/122] openvswitch: fix lockup on tx to unregistering netdev with carrier

[Greg Kroah-Hartman]

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

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

From: Ilya Maximets <i.maximets@ovn.org>

[ Upstream commit 47e55e4b410f7d552e43011baa5be1aab4093990 ]

Commit in a fixes tag attempted to fix the issue in the following
sequence of calls:

    do_output
    -> ovs_vport_send
       -> dev_queue_xmit
          -> __dev_queue_xmit
             -> netdev_core_pick_tx
                -> skb_tx_hash

When device is unregistering, the 'dev->real_num_tx_queues' goes to
zero and the 'while (unlikely(hash >= qcount))' loop inside the
'skb_tx_hash' becomes infinite, locking up the core forever.

But unfortunately, checking just the carrier status is not enough to
fix the issue, because some devices may still be in unregistering
state while reporting carrier status OK.

One example of such device is a net/dummy.  It sets carrier ON
on start, but it doesn't implement .ndo_stop to set the carrier off.
And it makes sense, because dummy doesn't really have a carrier.
Therefore, while this device is unregistering, it's still easy to hit
the infinite loop in the skb_tx_hash() from the OVS datapath.  There
might be other drivers that do the same, but dummy by itself is
important for the OVS ecosystem, because it is frequently used as a
packet sink for tcpdump while debugging OVS deployments.  And when the
issue is hit, the only way to recover is to reboot.

Fix that by also checking if the device is running.  The running
state is handled by the net core during unregistering, so it covers
unregistering case better, and we don't really need to send packets
to devices that are not running anyway.

While only checking the running state might be enough, the carrier
check is preserved.  The running and the carrier states seem disjoined
throughout the code and different drivers.  And other core functions
like __dev_direct_xmit() check both before attempting to transmit
a packet.  So, it seems safer to check both flags in OVS as well.

Fixes: 066b86787fa3 ("net: openvswitch: fix race on port output")
Reported-by: Friedrich Weber <f.weber@proxmox.com>
Closes: https://mail.openvswitch.org/pipermail/ovs-discuss/2025-January/053423.html
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Tested-by: Friedrich Weber <f.weber@proxmox.com>
Reviewed-by: Aaron Conole <aconole@redhat.com>
Link: https://patch.msgid.link/20250109122225.4034688-1-i.maximets@ovn.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/openvswitch/actions.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/net/openvswitch/actions.c b/net/openvswitch/actions.c
index 16e2600146844..704c858cf2093 100644
--- a/net/openvswitch/actions.c
+++ b/net/openvswitch/actions.c
@@ -934,7 +934,9 @@ static void do_output(struct datapath *dp, struct sk_buff *skb, int out_port,
 {
 	struct vport *vport = ovs_vport_rcu(dp, out_port);
 
-	if (likely(vport && netif_carrier_ok(vport->dev))) {
+	if (likely(vport &&
+		   netif_running(vport->dev) &&
+		   netif_carrier_ok(vport->dev))) {
 		u16 mru = OVS_CB(skb)->mru;
 		u32 cutlen = OVS_CB(skb)->cutlen;
 
-- 
2.39.5

[PATCH 6.12 007/122] pktgen: Avoid out-of-bounds access in get_imix_entries

[Greg Kroah-Hartman]

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

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

From: Artem Chernyshev <artem.chernyshev@red-soft.ru>

[ Upstream commit 76201b5979768500bca362871db66d77cb4c225e ]

Passing a sufficient amount of imix entries leads to invalid access to the
pkt_dev->imix_entries array because of the incorrect boundary check.

UBSAN: array-index-out-of-bounds in net/core/pktgen.c:874:24
index 20 is out of range for type 'imix_pkt [20]'
CPU: 2 PID: 1210 Comm: bash Not tainted 6.10.0-rc1 #121
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996)
Call Trace:
<TASK>
dump_stack_lvl lib/dump_stack.c:117
__ubsan_handle_out_of_bounds lib/ubsan.c:429
get_imix_entries net/core/pktgen.c:874
pktgen_if_write net/core/pktgen.c:1063
pde_write fs/proc/inode.c:334
proc_reg_write fs/proc/inode.c:346
vfs_write fs/read_write.c:593
ksys_write fs/read_write.c:644
do_syscall_64 arch/x86/entry/common.c:83
entry_SYSCALL_64_after_hwframe arch/x86/entry/entry_64.S:130

Found by Linux Verification Center (linuxtesting.org) with SVACE.

Fixes: 52a62f8603f9 ("pktgen: Parse internet mix (imix) input")
Signed-off-by: Artem Chernyshev <artem.chernyshev@red-soft.ru>
[ fp: allow to fill the array completely; minor changelog cleanup ]
Signed-off-by: Fedor Pchelkin <pchelkin@ispras.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/pktgen.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/net/core/pktgen.c b/net/core/pktgen.c
index 34f68ef74b8f2..b6db4910359bb 100644
--- a/net/core/pktgen.c
+++ b/net/core/pktgen.c
@@ -851,6 +851,9 @@ static ssize_t get_imix_entries(const char __user *buffer,
 		unsigned long weight;
 		unsigned long size;
 
+		if (pkt_dev->n_imix_entries >= MAX_IMIX_ENTRIES)
+			return -E2BIG;
+
 		len = num_arg(&buffer[i], max_digits, &size);
 		if (len < 0)
 			return len;
@@ -880,9 +883,6 @@ static ssize_t get_imix_entries(const char __user *buffer,
 
 		i++;
 		pkt_dev->n_imix_entries++;
-
-		if (pkt_dev->n_imix_entries > MAX_IMIX_ENTRIES)
-			return -E2BIG;
 	} while (c == ' ');
 
 	return i;
-- 
2.39.5

[PATCH 6.12 008/122] ice: Fix E825 initialization

[Greg Kroah-Hartman]

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

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

From: Karol Kolacinski <karol.kolacinski@intel.com>

[ Upstream commit d79c304c76e9b30ff5527afc176b5c4f9f0374b6 ]

Current implementation checks revision of all PHYs on all PFs, which is
incorrect and may result in initialization failure. Check only the
revision of the current PHY.

Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.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/ice/ice_ptp_hw.c | 22 +++++++++------------
 1 file changed, 9 insertions(+), 13 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index 3816e45b6ab44..f6816c2f71438 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -2664,14 +2664,15 @@ static bool ice_is_muxed_topo(struct ice_hw *hw)
 }
 
 /**
- * ice_ptp_init_phy_e825c - initialize PHY parameters
+ * ice_ptp_init_phy_e825 - initialize PHY parameters
  * @hw: pointer to the HW struct
  */
-static void ice_ptp_init_phy_e825c(struct ice_hw *hw)
+static void ice_ptp_init_phy_e825(struct ice_hw *hw)
 {
 	struct ice_ptp_hw *ptp = &hw->ptp;
 	struct ice_eth56g_params *params;
-	u8 phy;
+	u32 phy_rev;
+	int err;
 
 	ptp->phy_model = ICE_PHY_ETH56G;
 	params = &ptp->phy.eth56g;
@@ -2685,15 +2686,10 @@ static void ice_ptp_init_phy_e825c(struct ice_hw *hw)
 	ptp->num_lports = params->num_phys * ptp->ports_per_phy;
 
 	ice_sb_access_ena_eth56g(hw, true);
-	for (phy = 0; phy < params->num_phys; phy++) {
-		u32 phy_rev;
-		int err;
-
-		err = ice_read_phy_eth56g(hw, phy, PHY_REG_REVISION, &phy_rev);
-		if (err || phy_rev != PHY_REVISION_ETH56G) {
-			ptp->phy_model = ICE_PHY_UNSUP;
-			return;
-		}
+	err = ice_read_phy_eth56g(hw, hw->pf_id, PHY_REG_REVISION, &phy_rev);
+	if (err || phy_rev != PHY_REVISION_ETH56G) {
+		ptp->phy_model = ICE_PHY_UNSUP;
+		return;
 	}
 
 	ptp->is_2x50g_muxed_topo = ice_is_muxed_topo(hw);
@@ -5395,7 +5391,7 @@ void ice_ptp_init_hw(struct ice_hw *hw)
 	else if (ice_is_e810(hw))
 		ice_ptp_init_phy_e810(ptp);
 	else if (ice_is_e825c(hw))
-		ice_ptp_init_phy_e825c(hw);
+		ice_ptp_init_phy_e825(hw);
 	else
 		ptp->phy_model = ICE_PHY_UNSUP;
 }
-- 
2.39.5

[PATCH 6.12 009/122] ice: Fix quad registers read on E825

[Greg Kroah-Hartman]

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

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

From: Karol Kolacinski <karol.kolacinski@intel.com>

[ Upstream commit dc26548d729e5f732197d2b210fb77c745b01495 ]

Quad registers are read/written incorrectly. E825 devices always use
quad 0 address and differentiate between the PHYs by changing SBQ
destination device (phy_0 or phy_0_peer).

Add helpers for reading/writing PTP registers shared per quad and use
correct quad address and SBQ destination device based on port.

Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.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/ice/ice_ptp_hw.c | 219 ++++++++++++--------
 drivers/net/ethernet/intel/ice/ice_type.h   |   1 -
 2 files changed, 133 insertions(+), 87 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index f6816c2f71438..64c36620a02f3 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -877,31 +877,46 @@ static void ice_ptp_exec_tmr_cmd(struct ice_hw *hw)
  * The following functions operate on devices with the ETH 56G PHY.
  */
 
+/**
+ * ice_ptp_get_dest_dev_e825 - get destination PHY for given port number
+ * @hw: pointer to the HW struct
+ * @port: destination port
+ *
+ * Return: destination sideband queue PHY device.
+ */
+static enum ice_sbq_msg_dev ice_ptp_get_dest_dev_e825(struct ice_hw *hw,
+						      u8 port)
+{
+	/* On a single complex E825, PHY 0 is always destination device phy_0
+	 * and PHY 1 is phy_0_peer.
+	 */
+	if (port >= hw->ptp.ports_per_phy)
+		return eth56g_phy_1;
+	else
+		return eth56g_phy_0;
+}
+
 /**
  * ice_write_phy_eth56g - Write a PHY port register
  * @hw: pointer to the HW struct
- * @phy_idx: PHY index
+ * @port: destination port
  * @addr: PHY register address
  * @val: Value to write
  *
  * Return: 0 on success, other error codes when failed to write to PHY
  */
-static int ice_write_phy_eth56g(struct ice_hw *hw, u8 phy_idx, u32 addr,
-				u32 val)
+static int ice_write_phy_eth56g(struct ice_hw *hw, u8 port, u32 addr, u32 val)
 {
-	struct ice_sbq_msg_input phy_msg;
+	struct ice_sbq_msg_input msg = {
+		.dest_dev = ice_ptp_get_dest_dev_e825(hw, port),
+		.opcode = ice_sbq_msg_wr,
+		.msg_addr_low = lower_16_bits(addr),
+		.msg_addr_high = upper_16_bits(addr),
+		.data = val
+	};
 	int err;
 
-	phy_msg.opcode = ice_sbq_msg_wr;
-
-	phy_msg.msg_addr_low = lower_16_bits(addr);
-	phy_msg.msg_addr_high = upper_16_bits(addr);
-
-	phy_msg.data = val;
-	phy_msg.dest_dev = hw->ptp.phy.eth56g.phy_addr[phy_idx];
-
-	err = ice_sbq_rw_reg(hw, &phy_msg, ICE_AQ_FLAG_RD);
-
+	err = ice_sbq_rw_reg(hw, &msg, ICE_AQ_FLAG_RD);
 	if (err)
 		ice_debug(hw, ICE_DBG_PTP, "PTP failed to send msg to phy %d\n",
 			  err);
@@ -912,41 +927,36 @@ static int ice_write_phy_eth56g(struct ice_hw *hw, u8 phy_idx, u32 addr,
 /**
  * ice_read_phy_eth56g - Read a PHY port register
  * @hw: pointer to the HW struct
- * @phy_idx: PHY index
+ * @port: destination port
  * @addr: PHY register address
  * @val: Value to write
  *
  * Return: 0 on success, other error codes when failed to read from PHY
  */
-static int ice_read_phy_eth56g(struct ice_hw *hw, u8 phy_idx, u32 addr,
-			       u32 *val)
+static int ice_read_phy_eth56g(struct ice_hw *hw, u8 port, u32 addr, u32 *val)
 {
-	struct ice_sbq_msg_input phy_msg;
+	struct ice_sbq_msg_input msg = {
+		.dest_dev = ice_ptp_get_dest_dev_e825(hw, port),
+		.opcode = ice_sbq_msg_rd,
+		.msg_addr_low = lower_16_bits(addr),
+		.msg_addr_high = upper_16_bits(addr)
+	};
 	int err;
 
-	phy_msg.opcode = ice_sbq_msg_rd;
-
-	phy_msg.msg_addr_low = lower_16_bits(addr);
-	phy_msg.msg_addr_high = upper_16_bits(addr);
-
-	phy_msg.data = 0;
-	phy_msg.dest_dev = hw->ptp.phy.eth56g.phy_addr[phy_idx];
-
-	err = ice_sbq_rw_reg(hw, &phy_msg, ICE_AQ_FLAG_RD);
-	if (err) {
+	err = ice_sbq_rw_reg(hw, &msg, ICE_AQ_FLAG_RD);
+	if (err)
 		ice_debug(hw, ICE_DBG_PTP, "PTP failed to send msg to phy %d\n",
 			  err);
-		return err;
-	}
-
-	*val = phy_msg.data;
+	else
+		*val = msg.data;
 
-	return 0;
+	return err;
 }
 
 /**
  * ice_phy_res_address_eth56g - Calculate a PHY port register address
- * @port: Port number to be written
+ * @hw: pointer to the HW struct
+ * @lane: Lane number to be written
  * @res_type: resource type (register/memory)
  * @offset: Offset from PHY port register base
  * @addr: The result address
@@ -955,17 +965,19 @@ static int ice_read_phy_eth56g(struct ice_hw *hw, u8 phy_idx, u32 addr,
  * * %0      - success
  * * %EINVAL - invalid port number or resource type
  */
-static int ice_phy_res_address_eth56g(u8 port, enum eth56g_res_type res_type,
-				      u32 offset, u32 *addr)
+static int ice_phy_res_address_eth56g(struct ice_hw *hw, u8 lane,
+				      enum eth56g_res_type res_type,
+				      u32 offset,
+				      u32 *addr)
 {
-	u8 lane = port % ICE_PORTS_PER_QUAD;
-	u8 phy = ICE_GET_QUAD_NUM(port);
-
 	if (res_type >= NUM_ETH56G_PHY_RES)
 		return -EINVAL;
 
-	*addr = eth56g_phy_res[res_type].base[phy] +
+	/* Lanes 4..7 are in fact 0..3 on a second PHY */
+	lane %= hw->ptp.ports_per_phy;
+	*addr = eth56g_phy_res[res_type].base[0] +
 		lane * eth56g_phy_res[res_type].step + offset;
+
 	return 0;
 }
 
@@ -985,19 +997,17 @@ static int ice_phy_res_address_eth56g(u8 port, enum eth56g_res_type res_type,
 static int ice_write_port_eth56g(struct ice_hw *hw, u8 port, u32 offset,
 				 u32 val, enum eth56g_res_type res_type)
 {
-	u8 phy_port = port % hw->ptp.ports_per_phy;
-	u8 phy_idx = port / hw->ptp.ports_per_phy;
 	u32 addr;
 	int err;
 
 	if (port >= hw->ptp.num_lports)
 		return -EINVAL;
 
-	err = ice_phy_res_address_eth56g(phy_port, res_type, offset, &addr);
+	err = ice_phy_res_address_eth56g(hw, port, res_type, offset, &addr);
 	if (err)
 		return err;
 
-	return ice_write_phy_eth56g(hw, phy_idx, addr, val);
+	return ice_write_phy_eth56g(hw, port, addr, val);
 }
 
 /**
@@ -1016,19 +1026,17 @@ static int ice_write_port_eth56g(struct ice_hw *hw, u8 port, u32 offset,
 static int ice_read_port_eth56g(struct ice_hw *hw, u8 port, u32 offset,
 				u32 *val, enum eth56g_res_type res_type)
 {
-	u8 phy_port = port % hw->ptp.ports_per_phy;
-	u8 phy_idx = port / hw->ptp.ports_per_phy;
 	u32 addr;
 	int err;
 
 	if (port >= hw->ptp.num_lports)
 		return -EINVAL;
 
-	err = ice_phy_res_address_eth56g(phy_port, res_type, offset, &addr);
+	err = ice_phy_res_address_eth56g(hw, port, res_type, offset, &addr);
 	if (err)
 		return err;
 
-	return ice_read_phy_eth56g(hw, phy_idx, addr, val);
+	return ice_read_phy_eth56g(hw, port, addr, val);
 }
 
 /**
@@ -1177,6 +1185,56 @@ static int ice_write_port_mem_eth56g(struct ice_hw *hw, u8 port, u16 offset,
 	return ice_write_port_eth56g(hw, port, offset, val, ETH56G_PHY_MEM_PTP);
 }
 
+/**
+ * ice_write_quad_ptp_reg_eth56g - Write a PHY quad register
+ * @hw: pointer to the HW struct
+ * @offset: PHY register offset
+ * @port: Port number
+ * @val: Value to write
+ *
+ * Return:
+ * * %0     - success
+ * * %EIO  - invalid port number or resource type
+ * * %other - failed to write to PHY
+ */
+static int ice_write_quad_ptp_reg_eth56g(struct ice_hw *hw, u8 port,
+					 u32 offset, u32 val)
+{
+	u32 addr;
+
+	if (port >= hw->ptp.num_lports)
+		return -EIO;
+
+	addr = eth56g_phy_res[ETH56G_PHY_REG_PTP].base[0] + offset;
+
+	return ice_write_phy_eth56g(hw, port, addr, val);
+}
+
+/**
+ * ice_read_quad_ptp_reg_eth56g - Read a PHY quad register
+ * @hw: pointer to the HW struct
+ * @offset: PHY register offset
+ * @port: Port number
+ * @val: Value to read
+ *
+ * Return:
+ * * %0     - success
+ * * %EIO  - invalid port number or resource type
+ * * %other - failed to read from PHY
+ */
+static int ice_read_quad_ptp_reg_eth56g(struct ice_hw *hw, u8 port,
+					u32 offset, u32 *val)
+{
+	u32 addr;
+
+	if (port >= hw->ptp.num_lports)
+		return -EIO;
+
+	addr = eth56g_phy_res[ETH56G_PHY_REG_PTP].base[0] + offset;
+
+	return ice_read_phy_eth56g(hw, port, addr, val);
+}
+
 /**
  * ice_is_64b_phy_reg_eth56g - Check if this is a 64bit PHY register
  * @low_addr: the low address to check
@@ -1896,7 +1954,6 @@ ice_phy_get_speed_eth56g(struct ice_link_status *li)
  */
 static int ice_phy_cfg_parpcs_eth56g(struct ice_hw *hw, u8 port)
 {
-	u8 port_blk = port & ~(ICE_PORTS_PER_QUAD - 1);
 	u32 val;
 	int err;
 
@@ -1911,8 +1968,8 @@ static int ice_phy_cfg_parpcs_eth56g(struct ice_hw *hw, u8 port)
 	switch (ice_phy_get_speed_eth56g(&hw->port_info->phy.link_info)) {
 	case ICE_ETH56G_LNK_SPD_1G:
 	case ICE_ETH56G_LNK_SPD_2_5G:
-		err = ice_read_ptp_reg_eth56g(hw, port_blk,
-					      PHY_GPCS_CONFIG_REG0, &val);
+		err = ice_read_quad_ptp_reg_eth56g(hw, port,
+						   PHY_GPCS_CONFIG_REG0, &val);
 		if (err) {
 			ice_debug(hw, ICE_DBG_PTP, "Failed to read PHY_GPCS_CONFIG_REG0, status: %d",
 				  err);
@@ -1923,8 +1980,8 @@ static int ice_phy_cfg_parpcs_eth56g(struct ice_hw *hw, u8 port)
 		val |= FIELD_PREP(PHY_GPCS_CONFIG_REG0_TX_THR_M,
 				  ICE_ETH56G_NOMINAL_TX_THRESH);
 
-		err = ice_write_ptp_reg_eth56g(hw, port_blk,
-					       PHY_GPCS_CONFIG_REG0, val);
+		err = ice_write_quad_ptp_reg_eth56g(hw, port,
+						    PHY_GPCS_CONFIG_REG0, val);
 		if (err) {
 			ice_debug(hw, ICE_DBG_PTP, "Failed to write PHY_GPCS_CONFIG_REG0, status: %d",
 				  err);
@@ -1965,50 +2022,47 @@ static int ice_phy_cfg_parpcs_eth56g(struct ice_hw *hw, u8 port)
  */
 int ice_phy_cfg_ptp_1step_eth56g(struct ice_hw *hw, u8 port)
 {
-	u8 port_blk = port & ~(ICE_PORTS_PER_QUAD - 1);
-	u8 blk_port = port & (ICE_PORTS_PER_QUAD - 1);
+	u8 quad_lane = port % ICE_PORTS_PER_QUAD;
+	u32 addr, val, peer_delay;
 	bool enable, sfd_ena;
-	u32 val, peer_delay;
 	int err;
 
 	enable = hw->ptp.phy.eth56g.onestep_ena;
 	peer_delay = hw->ptp.phy.eth56g.peer_delay;
 	sfd_ena = hw->ptp.phy.eth56g.sfd_ena;
 
-	/* PHY_PTP_1STEP_CONFIG */
-	err = ice_read_ptp_reg_eth56g(hw, port_blk, PHY_PTP_1STEP_CONFIG, &val);
+	addr = PHY_PTP_1STEP_CONFIG;
+	err = ice_read_quad_ptp_reg_eth56g(hw, port, addr, &val);
 	if (err)
 		return err;
 
 	if (enable)
-		val |= blk_port;
+		val |= BIT(quad_lane);
 	else
-		val &= ~blk_port;
+		val &= ~BIT(quad_lane);
 
 	val &= ~(PHY_PTP_1STEP_T1S_UP64_M | PHY_PTP_1STEP_T1S_DELTA_M);
 
-	err = ice_write_ptp_reg_eth56g(hw, port_blk, PHY_PTP_1STEP_CONFIG, val);
+	err = ice_write_quad_ptp_reg_eth56g(hw, port, addr, val);
 	if (err)
 		return err;
 
-	/* PHY_PTP_1STEP_PEER_DELAY */
+	addr = PHY_PTP_1STEP_PEER_DELAY(quad_lane);
 	val = FIELD_PREP(PHY_PTP_1STEP_PD_DELAY_M, peer_delay);
 	if (peer_delay)
 		val |= PHY_PTP_1STEP_PD_ADD_PD_M;
 	val |= PHY_PTP_1STEP_PD_DLY_V_M;
-	err = ice_write_ptp_reg_eth56g(hw, port_blk,
-				       PHY_PTP_1STEP_PEER_DELAY(blk_port), val);
+	err = ice_write_quad_ptp_reg_eth56g(hw, port, addr, val);
 	if (err)
 		return err;
 
 	val &= ~PHY_PTP_1STEP_PD_DLY_V_M;
-	err = ice_write_ptp_reg_eth56g(hw, port_blk,
-				       PHY_PTP_1STEP_PEER_DELAY(blk_port), val);
+	err = ice_write_quad_ptp_reg_eth56g(hw, port, addr, val);
 	if (err)
 		return err;
 
-	/* PHY_MAC_XIF_MODE */
-	err = ice_read_mac_reg_eth56g(hw, port, PHY_MAC_XIF_MODE, &val);
+	addr = PHY_MAC_XIF_MODE;
+	err = ice_read_mac_reg_eth56g(hw, port, addr, &val);
 	if (err)
 		return err;
 
@@ -2028,7 +2082,7 @@ int ice_phy_cfg_ptp_1step_eth56g(struct ice_hw *hw, u8 port)
 	       FIELD_PREP(PHY_MAC_XIF_TS_BIN_MODE_M, enable) |
 	       FIELD_PREP(PHY_MAC_XIF_TS_SFD_ENA_M, sfd_ena);
 
-	return ice_write_mac_reg_eth56g(hw, port, PHY_MAC_XIF_MODE, val);
+	return ice_write_mac_reg_eth56g(hw, port, addr, val);
 }
 
 /**
@@ -2070,21 +2124,22 @@ static u32 ice_ptp_calc_bitslip_eth56g(struct ice_hw *hw, u8 port, u32 bs,
 				       bool fc, bool rs,
 				       enum ice_eth56g_link_spd spd)
 {
-	u8 port_offset = port & (ICE_PORTS_PER_QUAD - 1);
-	u8 port_blk = port & ~(ICE_PORTS_PER_QUAD - 1);
 	u32 bitslip;
 	int err;
 
 	if (!bs || rs)
 		return 0;
 
-	if (spd == ICE_ETH56G_LNK_SPD_1G || spd == ICE_ETH56G_LNK_SPD_2_5G)
+	if (spd == ICE_ETH56G_LNK_SPD_1G || spd == ICE_ETH56G_LNK_SPD_2_5G) {
 		err = ice_read_gpcs_reg_eth56g(hw, port, PHY_GPCS_BITSLIP,
 					       &bitslip);
-	else
-		err = ice_read_ptp_reg_eth56g(hw, port_blk,
-					      PHY_REG_SD_BIT_SLIP(port_offset),
-					      &bitslip);
+	} else {
+		u8 quad_lane = port % ICE_PORTS_PER_QUAD;
+		u32 addr;
+
+		addr = PHY_REG_SD_BIT_SLIP(quad_lane);
+		err = ice_read_quad_ptp_reg_eth56g(hw, port, addr, &bitslip);
+	}
 	if (err)
 		return 0;
 
@@ -2679,8 +2734,6 @@ static void ice_ptp_init_phy_e825(struct ice_hw *hw)
 	params->onestep_ena = false;
 	params->peer_delay = 0;
 	params->sfd_ena = false;
-	params->phy_addr[0] = eth56g_phy_0;
-	params->phy_addr[1] = eth56g_phy_1;
 	params->num_phys = 2;
 	ptp->ports_per_phy = 4;
 	ptp->num_lports = params->num_phys * ptp->ports_per_phy;
@@ -2711,10 +2764,9 @@ static void ice_fill_phy_msg_e82x(struct ice_hw *hw,
 				  struct ice_sbq_msg_input *msg, u8 port,
 				  u16 offset)
 {
-	int phy_port, phy, quadtype;
+	int phy_port, quadtype;
 
 	phy_port = port % hw->ptp.ports_per_phy;
-	phy = port / hw->ptp.ports_per_phy;
 	quadtype = ICE_GET_QUAD_NUM(port) %
 		   ICE_GET_QUAD_NUM(hw->ptp.ports_per_phy);
 
@@ -2726,12 +2778,7 @@ static void ice_fill_phy_msg_e82x(struct ice_hw *hw,
 		msg->msg_addr_high = P_Q1_H(P_4_BASE + offset, phy_port);
 	}
 
-	if (phy == 0)
-		msg->dest_dev = rmn_0;
-	else if (phy == 1)
-		msg->dest_dev = rmn_1;
-	else
-		msg->dest_dev = rmn_2;
+	msg->dest_dev = rmn_0;
 }
 
 /**
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 45768796691fe..479227bdff75e 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -850,7 +850,6 @@ struct ice_mbx_data {
 
 struct ice_eth56g_params {
 	u8 num_phys;
-	u8 phy_addr[2];
 	bool onestep_ena;
 	bool sfd_ena;
 	u32 peer_delay;
-- 
2.39.5

[PATCH 6.12 010/122] ice: Fix ETH56G FC-FEC Rx offset value

[Greg Kroah-Hartman]

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

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

From: Karol Kolacinski <karol.kolacinski@intel.com>

[ Upstream commit 2e60560f1ec9b722f9c6699ec5d966f1732d14dd ]

Fix ETH56G FC-FEC incorrect Rx offset value by changing it from -255.96
to -469.26 ns.

Those values are derived from HW spec and reflect internal delays.
Hex value is a fixed point representation in Q23.9 format.

Fixes: 7cab44f1c35f ("ice: Introduce ETH56G PHY model for E825C products")
Reviewed-by: Arkadiusz Kubalewski <arkadiusz.kubalewski@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.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/ice/ice_ptp_consts.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_consts.h b/drivers/net/ethernet/intel/ice/ice_ptp_consts.h
index 3005dd252a102..bdb1020147d1c 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_consts.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_consts.h
@@ -131,7 +131,7 @@ struct ice_eth56g_mac_reg_cfg eth56g_mac_cfg[NUM_ICE_ETH56G_LNK_SPD] = {
 		.rx_offset = {
 			.serdes = 0xffffeb27, /* -10.42424 */
 			.no_fec = 0xffffcccd, /* -25.6 */
-			.fc = 0xfffe0014, /* -255.96 */
+			.fc = 0xfffc557b, /* -469.26 */
 			.sfd = 0x4a4, /* 2.32 */
 			.bs_ds = 0x32 /* 0.0969697 */
 		}
-- 
2.39.5

[PATCH 6.12 011/122] ice: Introduce ice_get_phy_model() wrapper

[Greg Kroah-Hartman]

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

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

From: Sergey Temerkhanov <sergey.temerkhanov@intel.com>

[ Upstream commit 5e0776451d89eefe66b19e010e48ece1cca07e58 ]

Introduce ice_get_phy_model() to improve code readability

Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
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>
Stable-dep-of: 258f5f905815 ("ice: Add correct PHY lane assignment")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice.h        |  5 +++++
 drivers/net/ethernet/intel/ice/ice_ptp.c    | 19 +++++++++---------
 drivers/net/ethernet/intel/ice/ice_ptp_hw.c | 22 ++++++++++-----------
 3 files changed, 25 insertions(+), 21 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice.h b/drivers/net/ethernet/intel/ice/ice.h
index d6f80da30decf..558cda577191d 100644
--- a/drivers/net/ethernet/intel/ice/ice.h
+++ b/drivers/net/ethernet/intel/ice/ice.h
@@ -1047,5 +1047,10 @@ static inline void ice_clear_rdma_cap(struct ice_pf *pf)
 	clear_bit(ICE_FLAG_RDMA_ENA, pf->flags);
 }
 
+static inline enum ice_phy_model ice_get_phy_model(const struct ice_hw *hw)
+{
+	return hw->ptp.phy_model;
+}
+
 extern const struct xdp_metadata_ops ice_xdp_md_ops;
 #endif /* _ICE_H_ */
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index ef2e858f49bb0..d534c8e571cee 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -1363,7 +1363,7 @@ ice_ptp_port_phy_stop(struct ice_ptp_port *ptp_port)
 
 	mutex_lock(&ptp_port->ps_lock);
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		err = ice_stop_phy_timer_eth56g(hw, port, true);
 		break;
@@ -1409,7 +1409,7 @@ ice_ptp_port_phy_restart(struct ice_ptp_port *ptp_port)
 
 	mutex_lock(&ptp_port->ps_lock);
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		err = ice_start_phy_timer_eth56g(hw, port);
 		break;
@@ -1480,8 +1480,7 @@ void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup)
 	/* Skip HW writes if reset is in progress */
 	if (pf->hw.reset_ongoing)
 		return;
-
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_E810:
 		/* Do not reconfigure E810 PHY */
 		return;
@@ -1514,7 +1513,7 @@ static int ice_ptp_cfg_phy_interrupt(struct ice_pf *pf, bool ena, u32 threshold)
 
 	ice_ptp_reset_ts_memory(hw);
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G: {
 		int port;
 
@@ -1553,7 +1552,7 @@ static int ice_ptp_cfg_phy_interrupt(struct ice_pf *pf, bool ena, u32 threshold)
 	case ICE_PHY_UNSUP:
 	default:
 		dev_warn(dev, "%s: Unexpected PHY model %d\n", __func__,
-			 hw->ptp.phy_model);
+			 ice_get_phy_model(hw));
 		return -EOPNOTSUPP;
 	}
 }
@@ -2059,7 +2058,7 @@ ice_ptp_settime64(struct ptp_clock_info *info, const struct timespec64 *ts)
 	/* For Vernier mode on E82X, we need to recalibrate after new settime.
 	 * Start with marking timestamps as invalid.
 	 */
-	if (hw->ptp.phy_model == ICE_PHY_E82X) {
+	if (ice_get_phy_model(hw) == ICE_PHY_E82X) {
 		err = ice_ptp_clear_phy_offset_ready_e82x(hw);
 		if (err)
 			dev_warn(ice_pf_to_dev(pf), "Failed to mark timestamps as invalid before settime\n");
@@ -2083,7 +2082,7 @@ ice_ptp_settime64(struct ptp_clock_info *info, const struct timespec64 *ts)
 	ice_ptp_enable_all_clkout(pf);
 
 	/* Recalibrate and re-enable timestamp blocks for E822/E823 */
-	if (hw->ptp.phy_model == ICE_PHY_E82X)
+	if (ice_get_phy_model(hw) == ICE_PHY_E82X)
 		ice_ptp_restart_all_phy(pf);
 exit:
 	if (err) {
@@ -3209,7 +3208,7 @@ static int ice_ptp_init_port(struct ice_pf *pf, struct ice_ptp_port *ptp_port)
 
 	mutex_init(&ptp_port->ps_lock);
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		return ice_ptp_init_tx_eth56g(pf, &ptp_port->tx,
 					      ptp_port->port_num);
@@ -3307,7 +3306,7 @@ static void ice_ptp_remove_auxbus_device(struct ice_pf *pf)
  */
 static void ice_ptp_init_tx_interrupt_mode(struct ice_pf *pf)
 {
-	switch (pf->hw.ptp.phy_model) {
+	switch (ice_get_phy_model(&pf->hw)) {
 	case ICE_PHY_E82X:
 		/* E822 based PHY has the clock owner process the interrupt
 		 * for all ports.
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index 64c36620a02f3..28bd4815ebcf3 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -804,7 +804,7 @@ static u32 ice_ptp_tmr_cmd_to_port_reg(struct ice_hw *hw,
 	/* Certain hardware families share the same register values for the
 	 * port register and source timer register.
 	 */
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_E810:
 		return ice_ptp_tmr_cmd_to_src_reg(hw, cmd) & TS_CMD_MASK_E810;
 	default:
@@ -5461,7 +5461,7 @@ void ice_ptp_init_hw(struct ice_hw *hw)
 static int ice_ptp_write_port_cmd(struct ice_hw *hw, u8 port,
 				  enum ice_ptp_tmr_cmd cmd)
 {
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		return ice_ptp_write_port_cmd_eth56g(hw, port, cmd);
 	case ICE_PHY_E82X:
@@ -5526,7 +5526,7 @@ static int ice_ptp_port_cmd(struct ice_hw *hw, enum ice_ptp_tmr_cmd cmd)
 	u32 port;
 
 	/* PHY models which can program all ports simultaneously */
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_E810:
 		return ice_ptp_port_cmd_e810(hw, cmd);
 	default:
@@ -5605,7 +5605,7 @@ int ice_ptp_init_time(struct ice_hw *hw, u64 time)
 
 	/* PHY timers */
 	/* Fill Rx and Tx ports and send msg to PHY */
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		err = ice_ptp_prep_phy_time_eth56g(hw,
 						   (u32)(time & 0xFFFFFFFF));
@@ -5651,7 +5651,7 @@ int ice_ptp_write_incval(struct ice_hw *hw, u64 incval)
 	wr32(hw, GLTSYN_SHADJ_L(tmr_idx), lower_32_bits(incval));
 	wr32(hw, GLTSYN_SHADJ_H(tmr_idx), upper_32_bits(incval));
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		err = ice_ptp_prep_phy_incval_eth56g(hw, incval);
 		break;
@@ -5720,7 +5720,7 @@ int ice_ptp_adj_clock(struct ice_hw *hw, s32 adj)
 	wr32(hw, GLTSYN_SHADJ_L(tmr_idx), 0);
 	wr32(hw, GLTSYN_SHADJ_H(tmr_idx), adj);
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		err = ice_ptp_prep_phy_adj_eth56g(hw, adj);
 		break;
@@ -5753,7 +5753,7 @@ int ice_ptp_adj_clock(struct ice_hw *hw, s32 adj)
  */
 int ice_read_phy_tstamp(struct ice_hw *hw, u8 block, u8 idx, u64 *tstamp)
 {
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		return ice_read_ptp_tstamp_eth56g(hw, block, idx, tstamp);
 	case ICE_PHY_E810:
@@ -5783,7 +5783,7 @@ int ice_read_phy_tstamp(struct ice_hw *hw, u8 block, u8 idx, u64 *tstamp)
  */
 int ice_clear_phy_tstamp(struct ice_hw *hw, u8 block, u8 idx)
 {
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		return ice_clear_ptp_tstamp_eth56g(hw, block, idx);
 	case ICE_PHY_E810:
@@ -5846,7 +5846,7 @@ static int ice_get_pf_c827_idx(struct ice_hw *hw, u8 *idx)
  */
 void ice_ptp_reset_ts_memory(struct ice_hw *hw)
 {
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		ice_ptp_reset_ts_memory_eth56g(hw);
 		break;
@@ -5875,7 +5875,7 @@ int ice_ptp_init_phc(struct ice_hw *hw)
 	/* Clear event err indications for auxiliary pins */
 	(void)rd32(hw, GLTSYN_STAT(src_idx));
 
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		return ice_ptp_init_phc_eth56g(hw);
 	case ICE_PHY_E810:
@@ -5900,7 +5900,7 @@ int ice_ptp_init_phc(struct ice_hw *hw)
  */
 int ice_get_phy_tx_tstamp_ready(struct ice_hw *hw, u8 block, u64 *tstamp_ready)
 {
-	switch (hw->ptp.phy_model) {
+	switch (ice_get_phy_model(hw)) {
 	case ICE_PHY_ETH56G:
 		return ice_get_phy_tx_tstamp_ready_eth56g(hw, block,
 							  tstamp_ready);
-- 
2.39.5

[PATCH 6.12 012/122] ice: Add ice_get_ctrl_ptp() wrapper to simplify the code

[Greg Kroah-Hartman]

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

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

From: Sergey Temerkhanov <sergey.temerkhanov@intel.com>

[ Upstream commit 97ed20a01f5b96e8738b53f56ae84b06953a2853 ]

Add ice_get_ctrl_ptp() wrapper to simplify the PTP support code
in the functions that do not use ctrl_pf directly.
Add the control PF pointer to struct ice_adapter
Rearrange fields in struct ice_adapter

Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
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>
Stable-dep-of: 258f5f905815 ("ice: Add correct PHY lane assignment")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_adapter.h |  5 ++++-
 drivers/net/ethernet/intel/ice/ice_ptp.c     | 12 ++++++++++++
 2 files changed, 16 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_adapter.h b/drivers/net/ethernet/intel/ice/ice_adapter.h
index 9d11014ec02ff..eb7cac01c2427 100644
--- a/drivers/net/ethernet/intel/ice/ice_adapter.h
+++ b/drivers/net/ethernet/intel/ice/ice_adapter.h
@@ -8,18 +8,21 @@
 #include <linux/refcount_types.h>
 
 struct pci_dev;
+struct ice_pf;
 
 /**
  * struct ice_adapter - PCI adapter resources shared across PFs
  * @ptp_gltsyn_time_lock: Spinlock protecting access to the GLTSYN_TIME
  *                        register of the PTP clock.
  * @refcount: Reference count. struct ice_pf objects hold the references.
+ * @ctrl_pf: Control PF of the adapter
  */
 struct ice_adapter {
+	refcount_t refcount;
 	/* For access to the GLTSYN_TIME register */
 	spinlock_t ptp_gltsyn_time_lock;
 
-	refcount_t refcount;
+	struct ice_pf *ctrl_pf;
 };
 
 struct ice_adapter *ice_adapter_get(const struct pci_dev *pdev);
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index d534c8e571cee..2fb73ab41bc20 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -16,6 +16,18 @@ static const struct ptp_pin_desc ice_pin_desc_e810t[] = {
 	{ "U.FL2", UFL2, PTP_PF_NONE, 2, { 0, } },
 };
 
+static struct ice_pf *ice_get_ctrl_pf(struct ice_pf *pf)
+{
+	return !pf->adapter ? NULL : pf->adapter->ctrl_pf;
+}
+
+static __maybe_unused struct ice_ptp *ice_get_ctrl_ptp(struct ice_pf *pf)
+{
+	struct ice_pf *ctrl_pf = ice_get_ctrl_pf(pf);
+
+	return !ctrl_pf ? NULL : &ctrl_pf->ptp;
+}
+
 /**
  * ice_get_sma_config_e810t
  * @hw: pointer to the hw struct
-- 
2.39.5

[PATCH 6.12 013/122] ice: Use ice_adapter for PTP shared data instead of auxdev

[Greg Kroah-Hartman]

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

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

From: Sergey Temerkhanov <sergey.temerkhanov@intel.com>

[ Upstream commit e800654e85b5b27966fc6493201f5f8cf658beb6 ]

Use struct ice_adapter to hold shared PTP data and control PTP
related actions instead of auxbus. This allows significant code
simplification and faster access to the container fields used in
the PTP support code.

Move the PTP port list to the ice_adapter container to simplify
the code and avoid race conditions which could occur due to the
synchronous nature of the initialization/access and
certain memory saving can be achieved by moving PTP data into
the ice_adapter itself.

Signed-off-by: Sergey Temerkhanov <sergey.temerkhanov@intel.com>
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
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>
Stable-dep-of: 258f5f905815 ("ice: Add correct PHY lane assignment")
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/intel/ice/ice_adapter.c |   6 +
 drivers/net/ethernet/intel/ice/ice_adapter.h |  17 +++
 drivers/net/ethernet/intel/ice/ice_ptp.c     | 115 ++++++++++++-------
 drivers/net/ethernet/intel/ice/ice_ptp.h     |   5 +-
 drivers/net/ethernet/intel/ice/ice_ptp_hw.h  |   5 +
 5 files changed, 105 insertions(+), 43 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_adapter.c b/drivers/net/ethernet/intel/ice/ice_adapter.c
index ad84d8ad49a63..f3e195974a8ef 100644
--- a/drivers/net/ethernet/intel/ice/ice_adapter.c
+++ b/drivers/net/ethernet/intel/ice/ice_adapter.c
@@ -40,11 +40,17 @@ static struct ice_adapter *ice_adapter_new(void)
 	spin_lock_init(&adapter->ptp_gltsyn_time_lock);
 	refcount_set(&adapter->refcount, 1);
 
+	mutex_init(&adapter->ports.lock);
+	INIT_LIST_HEAD(&adapter->ports.ports);
+
 	return adapter;
 }
 
 static void ice_adapter_free(struct ice_adapter *adapter)
 {
+	WARN_ON(!list_empty(&adapter->ports.ports));
+	mutex_destroy(&adapter->ports.lock);
+
 	kfree(adapter);
 }
 
diff --git a/drivers/net/ethernet/intel/ice/ice_adapter.h b/drivers/net/ethernet/intel/ice/ice_adapter.h
index eb7cac01c2427..e233225848b38 100644
--- a/drivers/net/ethernet/intel/ice/ice_adapter.h
+++ b/drivers/net/ethernet/intel/ice/ice_adapter.h
@@ -4,18 +4,34 @@
 #ifndef _ICE_ADAPTER_H_
 #define _ICE_ADAPTER_H_
 
+#include <linux/types.h>
 #include <linux/spinlock_types.h>
 #include <linux/refcount_types.h>
 
 struct pci_dev;
 struct ice_pf;
 
+/**
+ * struct ice_port_list - data used to store the list of adapter ports
+ *
+ * This structure contains data used to maintain a list of adapter ports
+ *
+ * @ports: list of ports
+ * @lock: protect access to the ports list
+ */
+struct ice_port_list {
+	struct list_head ports;
+	/* To synchronize the ports list operations */
+	struct mutex lock;
+};
+
 /**
  * struct ice_adapter - PCI adapter resources shared across PFs
  * @ptp_gltsyn_time_lock: Spinlock protecting access to the GLTSYN_TIME
  *                        register of the PTP clock.
  * @refcount: Reference count. struct ice_pf objects hold the references.
  * @ctrl_pf: Control PF of the adapter
+ * @ports: Ports list
  */
 struct ice_adapter {
 	refcount_t refcount;
@@ -23,6 +39,7 @@ struct ice_adapter {
 	spinlock_t ptp_gltsyn_time_lock;
 
 	struct ice_pf *ctrl_pf;
+	struct ice_port_list ports;
 };
 
 struct ice_adapter *ice_adapter_get(const struct pci_dev *pdev);
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 2fb73ab41bc20..0b3dd87a331c7 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -21,7 +21,7 @@ static struct ice_pf *ice_get_ctrl_pf(struct ice_pf *pf)
 	return !pf->adapter ? NULL : pf->adapter->ctrl_pf;
 }
 
-static __maybe_unused struct ice_ptp *ice_get_ctrl_ptp(struct ice_pf *pf)
+static struct ice_ptp *ice_get_ctrl_ptp(struct ice_pf *pf)
 {
 	struct ice_pf *ctrl_pf = ice_get_ctrl_pf(pf);
 
@@ -812,8 +812,8 @@ static enum ice_tx_tstamp_work ice_ptp_tx_tstamp_owner(struct ice_pf *pf)
 	struct ice_ptp_port *port;
 	unsigned int i;
 
-	mutex_lock(&pf->ptp.ports_owner.lock);
-	list_for_each_entry(port, &pf->ptp.ports_owner.ports, list_member) {
+	mutex_lock(&pf->adapter->ports.lock);
+	list_for_each_entry(port, &pf->adapter->ports.ports, list_node) {
 		struct ice_ptp_tx *tx = &port->tx;
 
 		if (!tx || !tx->init)
@@ -821,7 +821,7 @@ static enum ice_tx_tstamp_work ice_ptp_tx_tstamp_owner(struct ice_pf *pf)
 
 		ice_ptp_process_tx_tstamp(tx);
 	}
-	mutex_unlock(&pf->ptp.ports_owner.lock);
+	mutex_unlock(&pf->adapter->ports.lock);
 
 	for (i = 0; i < ICE_GET_QUAD_NUM(pf->hw.ptp.num_lports); i++) {
 		u64 tstamp_ready;
@@ -986,7 +986,7 @@ ice_ptp_flush_all_tx_tracker(struct ice_pf *pf)
 {
 	struct ice_ptp_port *port;
 
-	list_for_each_entry(port, &pf->ptp.ports_owner.ports, list_member)
+	list_for_each_entry(port, &pf->adapter->ports.ports, list_node)
 		ice_ptp_flush_tx_tracker(ptp_port_to_pf(port), &port->tx);
 }
 
@@ -1586,10 +1586,10 @@ static void ice_ptp_restart_all_phy(struct ice_pf *pf)
 {
 	struct list_head *entry;
 
-	list_for_each(entry, &pf->ptp.ports_owner.ports) {
+	list_for_each(entry, &pf->adapter->ports.ports) {
 		struct ice_ptp_port *port = list_entry(entry,
 						       struct ice_ptp_port,
-						       list_member);
+						       list_node);
 
 		if (port->link_up)
 			ice_ptp_port_phy_restart(port);
@@ -2906,6 +2906,50 @@ void ice_ptp_rebuild(struct ice_pf *pf, enum ice_reset_req reset_type)
 	dev_err(ice_pf_to_dev(pf), "PTP reset failed %d\n", err);
 }
 
+static bool ice_is_primary(struct ice_hw *hw)
+{
+	return ice_is_e825c(hw) && ice_is_dual(hw) ?
+		!!(hw->dev_caps.nac_topo.mode & ICE_NAC_TOPO_PRIMARY_M) : true;
+}
+
+static int ice_ptp_setup_adapter(struct ice_pf *pf)
+{
+	if (!ice_pf_src_tmr_owned(pf) || !ice_is_primary(&pf->hw))
+		return -EPERM;
+
+	pf->adapter->ctrl_pf = pf;
+
+	return 0;
+}
+
+static int ice_ptp_setup_pf(struct ice_pf *pf)
+{
+	struct ice_ptp *ctrl_ptp = ice_get_ctrl_ptp(pf);
+	struct ice_ptp *ptp = &pf->ptp;
+
+	if (WARN_ON(!ctrl_ptp) || ice_get_phy_model(&pf->hw) == ICE_PHY_UNSUP)
+		return -ENODEV;
+
+	INIT_LIST_HEAD(&ptp->port.list_node);
+	mutex_lock(&pf->adapter->ports.lock);
+
+	list_add(&ptp->port.list_node,
+		 &pf->adapter->ports.ports);
+	mutex_unlock(&pf->adapter->ports.lock);
+
+	return 0;
+}
+
+static void ice_ptp_cleanup_pf(struct ice_pf *pf)
+{
+	struct ice_ptp *ptp = &pf->ptp;
+
+	if (ice_get_phy_model(&pf->hw) != ICE_PHY_UNSUP) {
+		mutex_lock(&pf->adapter->ports.lock);
+		list_del(&ptp->port.list_node);
+		mutex_unlock(&pf->adapter->ports.lock);
+	}
+}
 /**
  * ice_ptp_aux_dev_to_aux_pf - Get auxiliary PF handle for the auxiliary device
  * @aux_dev: auxiliary device to get the auxiliary PF for
@@ -2957,9 +3001,9 @@ static int ice_ptp_auxbus_probe(struct auxiliary_device *aux_dev,
 	if (WARN_ON(!owner_pf))
 		return -ENODEV;
 
-	INIT_LIST_HEAD(&aux_pf->ptp.port.list_member);
+	INIT_LIST_HEAD(&aux_pf->ptp.port.list_node);
 	mutex_lock(&owner_pf->ptp.ports_owner.lock);
-	list_add(&aux_pf->ptp.port.list_member,
+	list_add(&aux_pf->ptp.port.list_node,
 		 &owner_pf->ptp.ports_owner.ports);
 	mutex_unlock(&owner_pf->ptp.ports_owner.lock);
 
@@ -2976,7 +3020,7 @@ static void ice_ptp_auxbus_remove(struct auxiliary_device *aux_dev)
 	struct ice_pf *aux_pf = ice_ptp_aux_dev_to_aux_pf(aux_dev);
 
 	mutex_lock(&owner_pf->ptp.ports_owner.lock);
-	list_del(&aux_pf->ptp.port.list_member);
+	list_del(&aux_pf->ptp.port.list_node);
 	mutex_unlock(&owner_pf->ptp.ports_owner.lock);
 }
 
@@ -3036,7 +3080,7 @@ ice_ptp_auxbus_create_id_table(struct ice_pf *pf, const char *name)
  * ice_ptp_register_auxbus_driver - Register PTP auxiliary bus driver
  * @pf: Board private structure
  */
-static int ice_ptp_register_auxbus_driver(struct ice_pf *pf)
+static int __always_unused ice_ptp_register_auxbus_driver(struct ice_pf *pf)
 {
 	struct auxiliary_driver *aux_driver;
 	struct ice_ptp *ptp;
@@ -3079,7 +3123,7 @@ static int ice_ptp_register_auxbus_driver(struct ice_pf *pf)
  * ice_ptp_unregister_auxbus_driver - Unregister PTP auxiliary bus driver
  * @pf: Board private structure
  */
-static void ice_ptp_unregister_auxbus_driver(struct ice_pf *pf)
+static void __always_unused ice_ptp_unregister_auxbus_driver(struct ice_pf *pf)
 {
 	struct auxiliary_driver *aux_driver = &pf->ptp.ports_owner.aux_driver;
 
@@ -3098,15 +3142,12 @@ static void ice_ptp_unregister_auxbus_driver(struct ice_pf *pf)
  */
 int ice_ptp_clock_index(struct ice_pf *pf)
 {
-	struct auxiliary_device *aux_dev;
-	struct ice_pf *owner_pf;
+	struct ice_ptp *ctrl_ptp = ice_get_ctrl_ptp(pf);
 	struct ptp_clock *clock;
 
-	aux_dev = &pf->ptp.port.aux_dev;
-	owner_pf = ice_ptp_aux_dev_to_owner_pf(aux_dev);
-	if (!owner_pf)
+	if (!ctrl_ptp)
 		return -1;
-	clock = owner_pf->ptp.clock;
+	clock = ctrl_ptp->clock;
 
 	return clock ? ptp_clock_index(clock) : -1;
 }
@@ -3166,15 +3207,7 @@ static int ice_ptp_init_owner(struct ice_pf *pf)
 	if (err)
 		goto err_clk;
 
-	err = ice_ptp_register_auxbus_driver(pf);
-	if (err) {
-		dev_err(ice_pf_to_dev(pf), "Failed to register PTP auxbus driver");
-		goto err_aux;
-	}
-
 	return 0;
-err_aux:
-	ptp_clock_unregister(pf->ptp.clock);
 err_clk:
 	pf->ptp.clock = NULL;
 err_exit:
@@ -3250,7 +3283,7 @@ static void ice_ptp_release_auxbus_device(struct device *dev)
  * ice_ptp_create_auxbus_device - Create PTP auxiliary bus device
  * @pf: Board private structure
  */
-static int ice_ptp_create_auxbus_device(struct ice_pf *pf)
+static __always_unused int ice_ptp_create_auxbus_device(struct ice_pf *pf)
 {
 	struct auxiliary_device *aux_dev;
 	struct ice_ptp *ptp;
@@ -3297,7 +3330,7 @@ static int ice_ptp_create_auxbus_device(struct ice_pf *pf)
  * ice_ptp_remove_auxbus_device - Remove PTP auxiliary bus device
  * @pf: Board private structure
  */
-static void ice_ptp_remove_auxbus_device(struct ice_pf *pf)
+static __always_unused void ice_ptp_remove_auxbus_device(struct ice_pf *pf)
 {
 	struct auxiliary_device *aux_dev = &pf->ptp.port.aux_dev;
 
@@ -3361,19 +3394,26 @@ void ice_ptp_init(struct ice_pf *pf)
 	/* If this function owns the clock hardware, it must allocate and
 	 * configure the PTP clock device to represent it.
 	 */
-	if (ice_pf_src_tmr_owned(pf)) {
+	if (ice_pf_src_tmr_owned(pf) && ice_is_primary(hw)) {
+		err = ice_ptp_setup_adapter(pf);
+		if (err)
+			goto err_exit;
 		err = ice_ptp_init_owner(pf);
 		if (err)
-			goto err;
+			goto err_exit;
 	}
 
+	err = ice_ptp_setup_pf(pf);
+	if (err)
+		goto err_exit;
+
 	ptp->port.port_num = hw->pf_id;
 	if (ice_is_e825c(hw) && hw->ptp.is_2x50g_muxed_topo)
 		ptp->port.port_num = hw->pf_id * 2;
 
 	err = ice_ptp_init_port(pf, &ptp->port);
 	if (err)
-		goto err;
+		goto err_exit;
 
 	/* Start the PHY timestamping block */
 	ice_ptp_reset_phy_timestamping(pf);
@@ -3381,20 +3421,16 @@ void ice_ptp_init(struct ice_pf *pf)
 	/* Configure initial Tx interrupt settings */
 	ice_ptp_cfg_tx_interrupt(pf);
 
-	err = ice_ptp_create_auxbus_device(pf);
-	if (err)
-		goto err;
-
 	ptp->state = ICE_PTP_READY;
 
 	err = ice_ptp_init_work(pf, ptp);
 	if (err)
-		goto err;
+		goto err_exit;
 
 	dev_info(ice_pf_to_dev(pf), "PTP init successful\n");
 	return;
 
-err:
+err_exit:
 	/* If we registered a PTP clock, release it */
 	if (pf->ptp.clock) {
 		ptp_clock_unregister(ptp->clock);
@@ -3421,7 +3457,7 @@ void ice_ptp_release(struct ice_pf *pf)
 	/* Disable timestamping for both Tx and Rx */
 	ice_ptp_disable_timestamp_mode(pf);
 
-	ice_ptp_remove_auxbus_device(pf);
+	ice_ptp_cleanup_pf(pf);
 
 	ice_ptp_release_tx_tracker(pf, &pf->ptp.port.tx);
 
@@ -3436,9 +3472,6 @@ void ice_ptp_release(struct ice_pf *pf)
 		pf->ptp.kworker = NULL;
 	}
 
-	if (ice_pf_src_tmr_owned(pf))
-		ice_ptp_unregister_auxbus_driver(pf);
-
 	if (!pf->ptp.clock)
 		return;
 
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h
index 2db2257a0fb2f..5615efc42c624 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.h
@@ -169,7 +169,7 @@ struct ice_ptp_tx {
  * ready for PTP functionality. It is used to track the port initialization
  * and determine when the port's PHY offset is valid.
  *
- * @list_member: list member structure of auxiliary device
+ * @list_node: list member structure
  * @tx: Tx timestamp tracking for this port
  * @aux_dev: auxiliary device associated with this port
  * @ov_work: delayed work task for tracking when PHY offset is valid
@@ -179,7 +179,7 @@ struct ice_ptp_tx {
  * @port_num: the port number this structure represents
  */
 struct ice_ptp_port {
-	struct list_head list_member;
+	struct list_head list_node;
 	struct ice_ptp_tx tx;
 	struct auxiliary_device aux_dev;
 	struct kthread_delayed_work ov_work;
@@ -205,6 +205,7 @@ enum ice_ptp_tx_interrupt {
  * @ports: list of porst handled by this port owner
  * @lock: protect access to ports list
  */
+
 struct ice_ptp_port_owner {
 	struct auxiliary_driver aux_driver;
 	struct list_head ports;
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
index 4c8b845713442..3499062218b59 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.h
@@ -452,6 +452,11 @@ static inline u64 ice_get_base_incval(struct ice_hw *hw)
 	}
 }
 
+static inline bool ice_is_dual(struct ice_hw *hw)
+{
+	return !!(hw->dev_caps.nac_topo.mode & ICE_NAC_TOPO_DUAL_M);
+}
+
 #define PFTSYN_SEM_BYTES	4
 
 #define ICE_PTP_CLOCK_INDEX_0	0x00
-- 
2.39.5

[PATCH 6.12 014/122] ice: Add correct PHY lane assignment

[Greg Kroah-Hartman]

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

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

From: Karol Kolacinski <karol.kolacinski@intel.com>

[ Upstream commit 258f5f905815979f15d5151d2ea4f20d8e057fe1 ]

Driver always naively assumes, that for PTP purposes, PHY lane to
configure is corresponding to PF ID.

This is not true for some port configurations, e.g.:
- 2x50G per quad, where lanes used are 0 and 2 on each quad, but PF IDs
  are 0 and 1
- 100G per quad on 2 quads, where lanes used are 0 and 4, but PF IDs are
  0 and 1

Use correct PHY lane assignment by getting and parsing port options.
This is read from the NVM by the FW and provided to the driver with
the indication of active port split.

Remove ice_is_muxed_topo(), which is no longer needed.

Fixes: 4409ea1726cb ("ice: Adjust PTP init for 2x50G E825C devices")
Reviewed-by: Przemek Kitszel <przemyslaw.kitszel@intel.com>
Reviewed-by: Arkadiusz Kubalewski <Arkadiusz.kubalewski@intel.com>
Signed-off-by: Karol Kolacinski <karol.kolacinski@intel.com>
Signed-off-by: Grzegorz Nitka <grzegorz.nitka@intel.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>
---
 .../net/ethernet/intel/ice/ice_adminq_cmd.h   |  1 +
 drivers/net/ethernet/intel/ice/ice_common.c   | 51 +++++++++++++++++++
 drivers/net/ethernet/intel/ice/ice_common.h   |  1 +
 drivers/net/ethernet/intel/ice/ice_main.c     |  6 +--
 drivers/net/ethernet/intel/ice/ice_ptp.c      | 23 ++++-----
 drivers/net/ethernet/intel/ice/ice_ptp.h      |  4 +-
 drivers/net/ethernet/intel/ice/ice_ptp_hw.c   | 26 +---------
 drivers/net/ethernet/intel/ice/ice_type.h     |  1 -
 8 files changed, 68 insertions(+), 45 deletions(-)

diff --git a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
index 79a6edd0be0ec..80f3dfd271243 100644
--- a/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
+++ b/drivers/net/ethernet/intel/ice/ice_adminq_cmd.h
@@ -1648,6 +1648,7 @@ struct ice_aqc_get_port_options_elem {
 #define ICE_AQC_PORT_OPT_MAX_LANE_25G	5
 #define ICE_AQC_PORT_OPT_MAX_LANE_50G	6
 #define ICE_AQC_PORT_OPT_MAX_LANE_100G	7
+#define ICE_AQC_PORT_OPT_MAX_LANE_200G	8
 
 	u8 global_scid[2];
 	u8 phy_scid[2];
diff --git a/drivers/net/ethernet/intel/ice/ice_common.c b/drivers/net/ethernet/intel/ice/ice_common.c
index f1324e25b2af1..068a467de1d56 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.c
+++ b/drivers/net/ethernet/intel/ice/ice_common.c
@@ -4074,6 +4074,57 @@ ice_aq_set_port_option(struct ice_hw *hw, u8 lport, u8 lport_valid,
 	return ice_aq_send_cmd(hw, &desc, NULL, 0, NULL);
 }
 
+/**
+ * ice_get_phy_lane_number - Get PHY lane number for current adapter
+ * @hw: pointer to the hw struct
+ *
+ * Return: PHY lane number on success, negative error code otherwise.
+ */
+int ice_get_phy_lane_number(struct ice_hw *hw)
+{
+	struct ice_aqc_get_port_options_elem *options;
+	unsigned int lport = 0;
+	unsigned int lane;
+	int err;
+
+	options = kcalloc(ICE_AQC_PORT_OPT_MAX, sizeof(*options), GFP_KERNEL);
+	if (!options)
+		return -ENOMEM;
+
+	for (lane = 0; lane < ICE_MAX_PORT_PER_PCI_DEV; lane++) {
+		u8 options_count = ICE_AQC_PORT_OPT_MAX;
+		u8 speed, active_idx, pending_idx;
+		bool active_valid, pending_valid;
+
+		err = ice_aq_get_port_options(hw, options, &options_count, lane,
+					      true, &active_idx, &active_valid,
+					      &pending_idx, &pending_valid);
+		if (err)
+			goto err;
+
+		if (!active_valid)
+			continue;
+
+		speed = options[active_idx].max_lane_speed;
+		/* If we don't get speed for this lane, it's unoccupied */
+		if (speed > ICE_AQC_PORT_OPT_MAX_LANE_200G)
+			continue;
+
+		if (hw->pf_id == lport) {
+			kfree(options);
+			return lane;
+		}
+
+		lport++;
+	}
+
+	/* PHY lane not found */
+	err = -ENXIO;
+err:
+	kfree(options);
+	return err;
+}
+
 /**
  * ice_aq_sff_eeprom
  * @hw: pointer to the HW struct
diff --git a/drivers/net/ethernet/intel/ice/ice_common.h b/drivers/net/ethernet/intel/ice/ice_common.h
index 27208a60cece5..fe6f88cfd9486 100644
--- a/drivers/net/ethernet/intel/ice/ice_common.h
+++ b/drivers/net/ethernet/intel/ice/ice_common.h
@@ -193,6 +193,7 @@ ice_aq_get_port_options(struct ice_hw *hw,
 int
 ice_aq_set_port_option(struct ice_hw *hw, u8 lport, u8 lport_valid,
 		       u8 new_option);
+int ice_get_phy_lane_number(struct ice_hw *hw);
 int
 ice_aq_sff_eeprom(struct ice_hw *hw, u16 lport, u8 bus_addr,
 		  u16 mem_addr, u8 page, u8 set_page, u8 *data, u8 length,
diff --git a/drivers/net/ethernet/intel/ice/ice_main.c b/drivers/net/ethernet/intel/ice/ice_main.c
index 8f2e758c39427..45eefe22fb5b7 100644
--- a/drivers/net/ethernet/intel/ice/ice_main.c
+++ b/drivers/net/ethernet/intel/ice/ice_main.c
@@ -1144,7 +1144,7 @@ ice_link_event(struct ice_pf *pf, struct ice_port_info *pi, bool link_up,
 	if (link_up == old_link && link_speed == old_link_speed)
 		return 0;
 
-	ice_ptp_link_change(pf, pf->hw.pf_id, link_up);
+	ice_ptp_link_change(pf, link_up);
 
 	if (ice_is_dcb_active(pf)) {
 		if (test_bit(ICE_FLAG_DCB_ENA, pf->flags))
@@ -6744,7 +6744,7 @@ static int ice_up_complete(struct ice_vsi *vsi)
 		ice_print_link_msg(vsi, true);
 		netif_tx_start_all_queues(vsi->netdev);
 		netif_carrier_on(vsi->netdev);
-		ice_ptp_link_change(pf, pf->hw.pf_id, true);
+		ice_ptp_link_change(pf, true);
 	}
 
 	/* Perform an initial read of the statistics registers now to
@@ -7214,7 +7214,7 @@ int ice_down(struct ice_vsi *vsi)
 
 	if (vsi->netdev) {
 		vlan_err = ice_vsi_del_vlan_zero(vsi);
-		ice_ptp_link_change(vsi->back, vsi->back->hw.pf_id, false);
+		ice_ptp_link_change(vsi->back, false);
 		netif_carrier_off(vsi->netdev);
 		netif_tx_disable(vsi->netdev);
 	}
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.c b/drivers/net/ethernet/intel/ice/ice_ptp.c
index 0b3dd87a331c7..7c6f81beaee46 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.c
@@ -1466,10 +1466,9 @@ ice_ptp_port_phy_restart(struct ice_ptp_port *ptp_port)
 /**
  * ice_ptp_link_change - Reconfigure PTP after link status change
  * @pf: Board private structure
- * @port: Port for which the PHY start is set
  * @linkup: Link is up or down
  */
-void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup)
+void ice_ptp_link_change(struct ice_pf *pf, bool linkup)
 {
 	struct ice_ptp_port *ptp_port;
 	struct ice_hw *hw = &pf->hw;
@@ -1477,14 +1476,7 @@ void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup)
 	if (pf->ptp.state != ICE_PTP_READY)
 		return;
 
-	if (WARN_ON_ONCE(port >= hw->ptp.num_lports))
-		return;
-
 	ptp_port = &pf->ptp.port;
-	if (ice_is_e825c(hw) && hw->ptp.is_2x50g_muxed_topo)
-		port *= 2;
-	if (WARN_ON_ONCE(ptp_port->port_num != port))
-		return;
 
 	/* Update cached link status for this port immediately */
 	ptp_port->link_up = linkup;
@@ -3383,10 +3375,17 @@ void ice_ptp_init(struct ice_pf *pf)
 {
 	struct ice_ptp *ptp = &pf->ptp;
 	struct ice_hw *hw = &pf->hw;
-	int err;
+	int lane_num, err;
 
 	ptp->state = ICE_PTP_INITIALIZING;
 
+	lane_num = ice_get_phy_lane_number(hw);
+	if (lane_num < 0) {
+		err = lane_num;
+		goto err_exit;
+	}
+
+	ptp->port.port_num = (u8)lane_num;
 	ice_ptp_init_hw(hw);
 
 	ice_ptp_init_tx_interrupt_mode(pf);
@@ -3407,10 +3406,6 @@ void ice_ptp_init(struct ice_pf *pf)
 	if (err)
 		goto err_exit;
 
-	ptp->port.port_num = hw->pf_id;
-	if (ice_is_e825c(hw) && hw->ptp.is_2x50g_muxed_topo)
-		ptp->port.port_num = hw->pf_id * 2;
-
 	err = ice_ptp_init_port(pf, &ptp->port);
 	if (err)
 		goto err_exit;
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp.h b/drivers/net/ethernet/intel/ice/ice_ptp.h
index 5615efc42c624..f1cfa6aa4e76b 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp.h
+++ b/drivers/net/ethernet/intel/ice/ice_ptp.h
@@ -332,7 +332,7 @@ void ice_ptp_prepare_for_reset(struct ice_pf *pf,
 			       enum ice_reset_req reset_type);
 void ice_ptp_init(struct ice_pf *pf);
 void ice_ptp_release(struct ice_pf *pf);
-void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup);
+void ice_ptp_link_change(struct ice_pf *pf, bool linkup);
 #else /* IS_ENABLED(CONFIG_PTP_1588_CLOCK) */
 static inline int ice_ptp_set_ts_config(struct ice_pf *pf, struct ifreq *ifr)
 {
@@ -380,7 +380,7 @@ static inline void ice_ptp_prepare_for_reset(struct ice_pf *pf,
 }
 static inline void ice_ptp_init(struct ice_pf *pf) { }
 static inline void ice_ptp_release(struct ice_pf *pf) { }
-static inline void ice_ptp_link_change(struct ice_pf *pf, u8 port, bool linkup)
+static inline void ice_ptp_link_change(struct ice_pf *pf, bool linkup)
 {
 }
 
diff --git a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
index 28bd4815ebcf3..7190fde16c868 100644
--- a/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
+++ b/drivers/net/ethernet/intel/ice/ice_ptp_hw.c
@@ -2698,26 +2698,6 @@ static int ice_get_phy_tx_tstamp_ready_eth56g(struct ice_hw *hw, u8 port,
 	return 0;
 }
 
-/**
- * ice_is_muxed_topo - detect breakout 2x50G topology for E825C
- * @hw: pointer to the HW struct
- *
- * Return: true if it's 2x50 breakout topology, false otherwise
- */
-static bool ice_is_muxed_topo(struct ice_hw *hw)
-{
-	u8 link_topo;
-	bool mux;
-	u32 val;
-
-	val = rd32(hw, GLGEN_SWITCH_MODE_CONFIG);
-	mux = FIELD_GET(GLGEN_SWITCH_MODE_CONFIG_25X4_QUAD_M, val);
-	val = rd32(hw, GLGEN_MAC_LINK_TOPO);
-	link_topo = FIELD_GET(GLGEN_MAC_LINK_TOPO_LINK_TOPO_M, val);
-
-	return (mux && link_topo == ICE_LINK_TOPO_UP_TO_2_LINKS);
-}
-
 /**
  * ice_ptp_init_phy_e825 - initialize PHY parameters
  * @hw: pointer to the HW struct
@@ -2740,12 +2720,8 @@ static void ice_ptp_init_phy_e825(struct ice_hw *hw)
 
 	ice_sb_access_ena_eth56g(hw, true);
 	err = ice_read_phy_eth56g(hw, hw->pf_id, PHY_REG_REVISION, &phy_rev);
-	if (err || phy_rev != PHY_REVISION_ETH56G) {
+	if (err || phy_rev != PHY_REVISION_ETH56G)
 		ptp->phy_model = ICE_PHY_UNSUP;
-		return;
-	}
-
-	ptp->is_2x50g_muxed_topo = ice_is_muxed_topo(hw);
 }
 
 /* E822 family functions
diff --git a/drivers/net/ethernet/intel/ice/ice_type.h b/drivers/net/ethernet/intel/ice/ice_type.h
index 479227bdff75e..609f31e0dfded 100644
--- a/drivers/net/ethernet/intel/ice/ice_type.h
+++ b/drivers/net/ethernet/intel/ice/ice_type.h
@@ -880,7 +880,6 @@ struct ice_ptp_hw {
 	union ice_phy_params phy;
 	u8 num_lports;
 	u8 ports_per_phy;
-	bool is_2x50g_muxed_topo;
 };
 
 /* Port hardware description */
-- 
2.39.5

[PATCH 6.12 015/122] cpuidle: teo: Update documentation after previous changes

[Greg Kroah-Hartman]

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

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

From: Rafael J. Wysocki <rafael.j.wysocki@intel.com>

[ Upstream commit 5a597a19a2148d1c5cd987907a60c042ab0f62d5 ]

After previous changes, the description of the teo governor in the
documentation comment does not match the code any more, so update it
as appropriate.

Fixes: 449914398083 ("cpuidle: teo: Remove recent intercepts metric")
Fixes: 2662342079f5 ("cpuidle: teo: Gather statistics regarding whether or not to stop the tick")
Fixes: 6da8f9ba5a87 ("cpuidle: teo: Skip tick_nohz_get_sleep_length() call in some cases")
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Christian Loehle <christian.loehle@arm.com>
Link: https://patch.msgid.link/6120335.lOV4Wx5bFT@rjwysocki.net
[ rjw: Corrected 3 typos found by Christian ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cpuidle/governors/teo.c | 91 +++++++++++++++++----------------
 1 file changed, 48 insertions(+), 43 deletions(-)

diff --git a/drivers/cpuidle/governors/teo.c b/drivers/cpuidle/governors/teo.c
index f2992f92d8db8..173ddcac540ad 100644
--- a/drivers/cpuidle/governors/teo.c
+++ b/drivers/cpuidle/governors/teo.c
@@ -10,25 +10,27 @@
  * DOC: teo-description
  *
  * The idea of this governor is based on the observation that on many systems
- * timer events are two or more orders of magnitude more frequent than any
- * other interrupts, so they are likely to be the most significant cause of CPU
- * wakeups from idle states.  Moreover, information about what happened in the
- * (relatively recent) past can be used to estimate whether or not the deepest
- * idle state with target residency within the (known) time till the closest
- * timer event, referred to as the sleep length, is likely to be suitable for
- * the upcoming CPU idle period and, if not, then which of the shallower idle
- * states to choose instead of it.
+ * timer interrupts are two or more orders of magnitude more frequent than any
+ * other interrupt types, so they are likely to dominate CPU wakeup patterns.
+ * Moreover, in principle, the time when the next timer event is going to occur
+ * can be determined at the idle state selection time, although doing that may
+ * be costly, so it can be regarded as the most reliable source of information
+ * for idle state selection.
  *
- * Of course, non-timer wakeup sources are more important in some use cases
- * which can be covered by taking a few most recent idle time intervals of the
- * CPU into account.  However, even in that context it is not necessary to
- * consider idle duration values greater than the sleep length, because the
- * closest timer will ultimately wake up the CPU anyway unless it is woken up
- * earlier.
+ * Of course, non-timer wakeup sources are more important in some use cases,
+ * but even then it is generally unnecessary to consider idle duration values
+ * greater than the time time till the next timer event, referred as the sleep
+ * length in what follows, because the closest timer will ultimately wake up the
+ * CPU anyway unless it is woken up earlier.
  *
- * Thus this governor estimates whether or not the prospective idle duration of
- * a CPU is likely to be significantly shorter than the sleep length and selects
- * an idle state for it accordingly.
+ * However, since obtaining the sleep length may be costly, the governor first
+ * checks if it can select a shallow idle state using wakeup pattern information
+ * from recent times, in which case it can do without knowing the sleep length
+ * at all.  For this purpose, it counts CPU wakeup events and looks for an idle
+ * state whose target residency has not exceeded the idle duration (measured
+ * after wakeup) in the majority of relevant recent cases.  If the target
+ * residency of that state is small enough, it may be used right away and the
+ * sleep length need not be determined.
  *
  * The computations carried out by this governor are based on using bins whose
  * boundaries are aligned with the target residency parameter values of the CPU
@@ -39,7 +41,11 @@
  * idle state 2, the third bin spans from the target residency of idle state 2
  * up to, but not including, the target residency of idle state 3 and so on.
  * The last bin spans from the target residency of the deepest idle state
- * supplied by the driver to infinity.
+ * supplied by the driver to the scheduler tick period length or to infinity if
+ * the tick period length is less than the target residency of that state.  In
+ * the latter case, the governor also counts events with the measured idle
+ * duration between the tick period length and the target residency of the
+ * deepest idle state.
  *
  * Two metrics called "hits" and "intercepts" are associated with each bin.
  * They are updated every time before selecting an idle state for the given CPU
@@ -49,47 +55,46 @@
  * sleep length and the idle duration measured after CPU wakeup fall into the
  * same bin (that is, the CPU appears to wake up "on time" relative to the sleep
  * length).  In turn, the "intercepts" metric reflects the relative frequency of
- * situations in which the measured idle duration is so much shorter than the
- * sleep length that the bin it falls into corresponds to an idle state
- * shallower than the one whose bin is fallen into by the sleep length (these
- * situations are referred to as "intercepts" below).
+ * non-timer wakeup events for which the measured idle duration falls into a bin
+ * that corresponds to an idle state shallower than the one whose bin is fallen
+ * into by the sleep length (these events are also referred to as "intercepts"
+ * below).
  *
  * In order to select an idle state for a CPU, the governor takes the following
  * steps (modulo the possible latency constraint that must be taken into account
  * too):
  *
- * 1. Find the deepest CPU idle state whose target residency does not exceed
- *    the current sleep length (the candidate idle state) and compute 2 sums as
- *    follows:
+ * 1. Find the deepest enabled CPU idle state (the candidate idle state) and
+ *    compute 2 sums as follows:
  *
- *    - The sum of the "hits" and "intercepts" metrics for the candidate state
- *      and all of the deeper idle states (it represents the cases in which the
- *      CPU was idle long enough to avoid being intercepted if the sleep length
- *      had been equal to the current one).
+ *    - The sum of the "hits" metric for all of the idle states shallower than
+ *      the candidate one (it represents the cases in which the CPU was likely
+ *      woken up by a timer).
  *
- *    - The sum of the "intercepts" metrics for all of the idle states shallower
- *      than the candidate one (it represents the cases in which the CPU was not
- *      idle long enough to avoid being intercepted if the sleep length had been
- *      equal to the current one).
+ *    - The sum of the "intercepts" metric for all of the idle states shallower
+ *      than the candidate one (it represents the cases in which the CPU was
+ *      likely woken up by a non-timer wakeup source).
  *
- * 2. If the second sum is greater than the first one the CPU is likely to wake
- *    up early, so look for an alternative idle state to select.
+ * 2. If the second sum computed in step 1 is greater than a half of the sum of
+ *    both metrics for the candidate state bin and all subsequent bins(if any),
+ *    a shallower idle state is likely to be more suitable, so look for it.
  *
- *    - Traverse the idle states shallower than the candidate one in the
+ *    - Traverse the enabled idle states shallower than the candidate one in the
  *      descending order.
  *
  *    - For each of them compute the sum of the "intercepts" metrics over all
  *      of the idle states between it and the candidate one (including the
  *      former and excluding the latter).
  *
- *    - If each of these sums that needs to be taken into account (because the
- *      check related to it has indicated that the CPU is likely to wake up
- *      early) is greater than a half of the corresponding sum computed in step
- *      1 (which means that the target residency of the state in question had
- *      not exceeded the idle duration in over a half of the relevant cases),
- *      select the given idle state instead of the candidate one.
+ *    - If this sum is greater than a half of the second sum computed in step 1,
+ *      use the given idle state as the new candidate one.
  *
- * 3. By default, select the candidate state.
+ * 3. If the current candidate state is state 0 or its target residency is short
+ *    enough, return it and prevent the scheduler tick from being stopped.
+ *
+ * 4. Obtain the sleep length value and check if it is below the target
+ *    residency of the current candidate state, in which case a new shallower
+ *    candidate state needs to be found, so look for it.
  */
 
 #include <linux/cpuidle.h>
-- 
2.39.5

[PATCH 6.12 016/122] btrfs: add the missing error handling inside get_canonical_dev_path

[Greg Kroah-Hartman]

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

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

From: Qu Wenruo <wqu@suse.com>

[ Upstream commit fe4de594f7a2e9bc49407de60fbd20809fad4192 ]

Inside function get_canonical_dev_path(), we call d_path() to get the
final device path.

But d_path() can return error, and in that case the next strscpy() call
will trigger an invalid memory access.

Add back the missing error handling for d_path().

Reported-by: Boris Burkov <boris@bur.io>
Fixes: 7e06de7c83a7 ("btrfs: canonicalize the device path before adding it")
Signed-off-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/btrfs/volumes.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 0c4d14c59ebec..395b8b880ce78 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -797,6 +797,10 @@ static int get_canonical_dev_path(const char *dev_path, char *canonical)
 	if (ret)
 		goto out;
 	resolved_path = d_path(&path, path_buf, PATH_MAX);
+	if (IS_ERR(resolved_path)) {
+		ret = PTR_ERR(resolved_path);
+		goto out;
+	}
 	ret = strscpy(canonical, resolved_path, PATH_MAX);
 out:
 	kfree(path_buf);
-- 
2.39.5

[PATCH 6.12 017/122] gtp: Use for_each_netdev_rcu() in gtp_genl_dump_pdp().

[Greg Kroah-Hartman]

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

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

From: Kuniyuki Iwashima <kuniyu@amazon.com>

[ Upstream commit 46841c7053e6d25fb33e0534ef023833bf03e382 ]

gtp_newlink() links the gtp device to a list in dev_net(dev).

However, even after the gtp device is moved to another netns,
it stays on the list but should be invisible.

Let's use for_each_netdev_rcu() for netdev traversal in
gtp_genl_dump_pdp().

Note that gtp_dev_list is no longer used under RCU, so list
helpers are converted to the non-RCU variant.

Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Reported-by: Xiao Liang <shaw.leon@gmail.com>
Closes: https://lore.kernel.org/netdev/CABAhCOQdBL6h9M2C+kd+bGivRJ9Q72JUxW+-gur0nub_=PmFPA@mail.gmail.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 19 +++++++++++--------
 1 file changed, 11 insertions(+), 8 deletions(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 70f981887518a..819ce4b756d23 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -1527,7 +1527,7 @@ static int gtp_newlink(struct net *src_net, struct net_device *dev,
 	}
 
 	gn = net_generic(dev_net(dev), gtp_net_id);
-	list_add_rcu(&gtp->list, &gn->gtp_dev_list);
+	list_add(&gtp->list, &gn->gtp_dev_list);
 	dev->priv_destructor = gtp_destructor;
 
 	netdev_dbg(dev, "registered new GTP interface\n");
@@ -1553,7 +1553,7 @@ static void gtp_dellink(struct net_device *dev, struct list_head *head)
 		hlist_for_each_entry_safe(pctx, next, &gtp->tid_hash[i], hlist_tid)
 			pdp_context_delete(pctx);
 
-	list_del_rcu(&gtp->list);
+	list_del(&gtp->list);
 	unregister_netdevice_queue(dev, head);
 }
 
@@ -2279,16 +2279,19 @@ static int gtp_genl_dump_pdp(struct sk_buff *skb,
 	struct gtp_dev *last_gtp = (struct gtp_dev *)cb->args[2], *gtp;
 	int i, j, bucket = cb->args[0], skip = cb->args[1];
 	struct net *net = sock_net(skb->sk);
+	struct net_device *dev;
 	struct pdp_ctx *pctx;
-	struct gtp_net *gn;
-
-	gn = net_generic(net, gtp_net_id);
 
 	if (cb->args[4])
 		return 0;
 
 	rcu_read_lock();
-	list_for_each_entry_rcu(gtp, &gn->gtp_dev_list, list) {
+	for_each_netdev_rcu(net, dev) {
+		if (dev->rtnl_link_ops != &gtp_link_ops)
+			continue;
+
+		gtp = netdev_priv(dev);
+
 		if (last_gtp && last_gtp != gtp)
 			continue;
 		else
@@ -2483,9 +2486,9 @@ static void __net_exit gtp_net_exit_batch_rtnl(struct list_head *net_list,
 
 	list_for_each_entry(net, net_list, exit_list) {
 		struct gtp_net *gn = net_generic(net, gtp_net_id);
-		struct gtp_dev *gtp;
+		struct gtp_dev *gtp, *gtp_next;
 
-		list_for_each_entry(gtp, &gn->gtp_dev_list, list)
+		list_for_each_entry_safe(gtp, gtp_next, &gn->gtp_dev_list, list)
 			gtp_dellink(gtp->dev, dev_to_kill);
 	}
 }
-- 
2.39.5

[PATCH 6.12 018/122] gtp: Destroy device along with udp sockets netns dismantle.

[Greg Kroah-Hartman]

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

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

From: Kuniyuki Iwashima <kuniyu@amazon.com>

[ Upstream commit eb28fd76c0a08a47b470677c6cef9dd1c60e92d1 ]

gtp_newlink() links the device to a list in dev_net(dev) instead of
src_net, where a udp tunnel socket is created.

Even when src_net is removed, the device stays alive on dev_net(dev).
Then, removing src_net triggers the splat below. [0]

In this example, gtp0 is created in ns2, and the udp socket is created
in ns1.

  ip netns add ns1
  ip netns add ns2
  ip -n ns1 link add netns ns2 name gtp0 type gtp role sgsn
  ip netns del ns1

Let's link the device to the socket's netns instead.

Now, gtp_net_exit_batch_rtnl() needs another netdev iteration to remove
all gtp devices in the netns.

[0]:
ref_tracker: net notrefcnt@000000003d6e7d05 has 1/2 users at
     sk_alloc (./include/net/net_namespace.h:345 net/core/sock.c:2236)
     inet_create (net/ipv4/af_inet.c:326 net/ipv4/af_inet.c:252)
     __sock_create (net/socket.c:1558)
     udp_sock_create4 (net/ipv4/udp_tunnel_core.c:18)
     gtp_create_sock (./include/net/udp_tunnel.h:59 drivers/net/gtp.c:1423)
     gtp_create_sockets (drivers/net/gtp.c:1447)
     gtp_newlink (drivers/net/gtp.c:1507)
     rtnl_newlink (net/core/rtnetlink.c:3786 net/core/rtnetlink.c:3897 net/core/rtnetlink.c:4012)
     rtnetlink_rcv_msg (net/core/rtnetlink.c:6922)
     netlink_rcv_skb (net/netlink/af_netlink.c:2542)
     netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1347)
     netlink_sendmsg (net/netlink/af_netlink.c:1891)
     ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2583)
     ___sys_sendmsg (net/socket.c:2639)
     __sys_sendmsg (net/socket.c:2669)
     do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)

WARNING: CPU: 1 PID: 60 at lib/ref_tracker.c:179 ref_tracker_dir_exit (lib/ref_tracker.c:179)
Modules linked in:
CPU: 1 UID: 0 PID: 60 Comm: kworker/u16:2 Not tainted 6.13.0-rc5-00147-g4c1224501e9d #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:ref_tracker_dir_exit (lib/ref_tracker.c:179)
Code: 00 00 00 fc ff df 4d 8b 26 49 bd 00 01 00 00 00 00 ad de 4c 39 f5 0f 85 df 00 00 00 48 8b 74 24 08 48 89 df e8 a5 cc 12 02 90 <0f> 0b 90 48 8d 6b 44 be 04 00 00 00 48 89 ef e8 80 de 67 ff 48 89
RSP: 0018:ff11000009a07b60 EFLAGS: 00010286
RAX: 0000000000002bd3 RBX: ff1100000f4e1aa0 RCX: 1ffffffff0e40ac6
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8423ee3c
RBP: ff1100000f4e1af0 R08: 0000000000000001 R09: fffffbfff0e395ae
R10: 0000000000000001 R11: 0000000000036001 R12: ff1100000f4e1af0
R13: dead000000000100 R14: ff1100000f4e1af0 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ff1100006ce80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9b2464bd98 CR3: 0000000005286005 CR4: 0000000000771ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 ? __warn (kernel/panic.c:748)
 ? ref_tracker_dir_exit (lib/ref_tracker.c:179)
 ? report_bug (lib/bug.c:201 lib/bug.c:219)
 ? handle_bug (arch/x86/kernel/traps.c:285)
 ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
 ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
 ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./arch/x86/include/asm/irqflags.h:155 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
 ? ref_tracker_dir_exit (lib/ref_tracker.c:179)
 ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:158)
 ? kfree (mm/slub.c:4613 mm/slub.c:4761)
 net_free (net/core/net_namespace.c:476 net/core/net_namespace.c:467)
 cleanup_net (net/core/net_namespace.c:664 (discriminator 3))
 process_one_work (kernel/workqueue.c:3229)
 worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
 kthread (kernel/kthread.c:389)
 ret_from_fork (arch/x86/kernel/process.c:147)
 ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
 </TASK>

Fixes: 459aa660eb1d ("gtp: add initial driver for datapath of GPRS Tunneling Protocol (GTP-U)")
Reported-by: Xiao Liang <shaw.leon@gmail.com>
Closes: https://lore.kernel.org/netdev/20250104125732.17335-1-shaw.leon@gmail.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/gtp.c | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/drivers/net/gtp.c b/drivers/net/gtp.c
index 819ce4b756d23..47406ce990161 100644
--- a/drivers/net/gtp.c
+++ b/drivers/net/gtp.c
@@ -1526,7 +1526,7 @@ static int gtp_newlink(struct net *src_net, struct net_device *dev,
 		goto out_encap;
 	}
 
-	gn = net_generic(dev_net(dev), gtp_net_id);
+	gn = net_generic(src_net, gtp_net_id);
 	list_add(&gtp->list, &gn->gtp_dev_list);
 	dev->priv_destructor = gtp_destructor;
 
@@ -2487,6 +2487,11 @@ static void __net_exit gtp_net_exit_batch_rtnl(struct list_head *net_list,
 	list_for_each_entry(net, net_list, exit_list) {
 		struct gtp_net *gn = net_generic(net, gtp_net_id);
 		struct gtp_dev *gtp, *gtp_next;
+		struct net_device *dev;
+
+		for_each_netdev(net, dev)
+			if (dev->rtnl_link_ops == &gtp_link_ops)
+				gtp_dellink(dev, dev_to_kill);
 
 		list_for_each_entry_safe(gtp, gtp_next, &gn->gtp_dev_list, list)
 			gtp_dellink(gtp->dev, dev_to_kill);
-- 
2.39.5

[PATCH 6.12 019/122] pfcp: Destroy device along with udp sockets netns dismantle.

[Greg Kroah-Hartman]

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

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

From: Kuniyuki Iwashima <kuniyu@amazon.com>

[ Upstream commit ffc90e9ca61b0f619326a1417ff32efd6cc71ed2 ]

pfcp_newlink() links the device to a list in dev_net(dev) instead
of net, where a udp tunnel socket is created.

Even when net is removed, the device stays alive on dev_net(dev).
Then, removing net triggers the splat below. [0]

In this example, pfcp0 is created in ns2, but the udp socket is
created in ns1.

  ip netns add ns1
  ip netns add ns2
  ip -n ns1 link add netns ns2 name pfcp0 type pfcp
  ip netns del ns1

Let's link the device to the socket's netns instead.

Now, pfcp_net_exit() needs another netdev iteration to remove
all pfcp devices in the netns.

pfcp_dev_list is not used under RCU, so the list API is converted
to the non-RCU variant.

pfcp_net_exit() can be converted to .exit_batch_rtnl() in net-next.

[0]:
ref_tracker: net notrefcnt@00000000128b34dc has 1/1 users at
     sk_alloc (./include/net/net_namespace.h:345 net/core/sock.c:2236)
     inet_create (net/ipv4/af_inet.c:326 net/ipv4/af_inet.c:252)
     __sock_create (net/socket.c:1558)
     udp_sock_create4 (net/ipv4/udp_tunnel_core.c:18)
     pfcp_create_sock (drivers/net/pfcp.c:168)
     pfcp_newlink (drivers/net/pfcp.c:182 drivers/net/pfcp.c:197)
     rtnl_newlink (net/core/rtnetlink.c:3786 net/core/rtnetlink.c:3897 net/core/rtnetlink.c:4012)
     rtnetlink_rcv_msg (net/core/rtnetlink.c:6922)
     netlink_rcv_skb (net/netlink/af_netlink.c:2542)
     netlink_unicast (net/netlink/af_netlink.c:1321 net/netlink/af_netlink.c:1347)
     netlink_sendmsg (net/netlink/af_netlink.c:1891)
     ____sys_sendmsg (net/socket.c:711 net/socket.c:726 net/socket.c:2583)
     ___sys_sendmsg (net/socket.c:2639)
     __sys_sendmsg (net/socket.c:2669)
     do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83)
     entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130)

WARNING: CPU: 1 PID: 11 at lib/ref_tracker.c:179 ref_tracker_dir_exit (lib/ref_tracker.c:179)
Modules linked in:
CPU: 1 UID: 0 PID: 11 Comm: kworker/u16:0 Not tainted 6.13.0-rc5-00147-g4c1224501e9d #5
Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS rel-1.16.0-0-gd239552ce722-prebuilt.qemu.org 04/01/2014
Workqueue: netns cleanup_net
RIP: 0010:ref_tracker_dir_exit (lib/ref_tracker.c:179)
Code: 00 00 00 fc ff df 4d 8b 26 49 bd 00 01 00 00 00 00 ad de 4c 39 f5 0f 85 df 00 00 00 48 8b 74 24 08 48 89 df e8 a5 cc 12 02 90 <0f> 0b 90 48 8d 6b 44 be 04 00 00 00 48 89 ef e8 80 de 67 ff 48 89
RSP: 0018:ff11000007f3fb60 EFLAGS: 00010286
RAX: 00000000000020ef RBX: ff1100000d6481e0 RCX: 1ffffffff0e40d82
RDX: 0000000000000000 RSI: 0000000000000000 RDI: ffffffff8423ee3c
RBP: ff1100000d648230 R08: 0000000000000001 R09: fffffbfff0e395af
R10: 0000000000000001 R11: 0000000000000000 R12: ff1100000d648230
R13: dead000000000100 R14: ff1100000d648230 R15: dffffc0000000000
FS:  0000000000000000(0000) GS:ff1100006ce80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00005620e1363990 CR3: 000000000eeb2002 CR4: 0000000000771ef0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe07f0 DR7: 0000000000000400
PKRU: 55555554
Call Trace:
 <TASK>
 ? __warn (kernel/panic.c:748)
 ? ref_tracker_dir_exit (lib/ref_tracker.c:179)
 ? report_bug (lib/bug.c:201 lib/bug.c:219)
 ? handle_bug (arch/x86/kernel/traps.c:285)
 ? exc_invalid_op (arch/x86/kernel/traps.c:309 (discriminator 1))
 ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621)
 ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:97 ./arch/x86/include/asm/irqflags.h:155 ./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194)
 ? ref_tracker_dir_exit (lib/ref_tracker.c:179)
 ? __pfx_ref_tracker_dir_exit (lib/ref_tracker.c:158)
 ? kfree (mm/slub.c:4613 mm/slub.c:4761)
 net_free (net/core/net_namespace.c:476 net/core/net_namespace.c:467)
 cleanup_net (net/core/net_namespace.c:664 (discriminator 3))
 process_one_work (kernel/workqueue.c:3229)
 worker_thread (kernel/workqueue.c:3304 kernel/workqueue.c:3391)
 kthread (kernel/kthread.c:389)
 ret_from_fork (arch/x86/kernel/process.c:147)
 ret_from_fork_asm (arch/x86/entry/entry_64.S:257)
  </TASK>

Fixes: 76c8764ef36a ("pfcp: add PFCP module")
Reported-by: Xiao Liang <shaw.leon@gmail.com>
Closes: https://lore.kernel.org/netdev/20250104125732.17335-1-shaw.leon@gmail.com/
Signed-off-by: Kuniyuki Iwashima <kuniyu@amazon.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/pfcp.c | 15 ++++++++++-----
 1 file changed, 10 insertions(+), 5 deletions(-)

diff --git a/drivers/net/pfcp.c b/drivers/net/pfcp.c
index 69434fd13f961..68d0d9e92a220 100644
--- a/drivers/net/pfcp.c
+++ b/drivers/net/pfcp.c
@@ -206,8 +206,8 @@ static int pfcp_newlink(struct net *net, struct net_device *dev,
 		goto exit_del_pfcp_sock;
 	}
 
-	pn = net_generic(dev_net(dev), pfcp_net_id);
-	list_add_rcu(&pfcp->list, &pn->pfcp_dev_list);
+	pn = net_generic(net, pfcp_net_id);
+	list_add(&pfcp->list, &pn->pfcp_dev_list);
 
 	netdev_dbg(dev, "registered new PFCP interface\n");
 
@@ -224,7 +224,7 @@ static void pfcp_dellink(struct net_device *dev, struct list_head *head)
 {
 	struct pfcp_dev *pfcp = netdev_priv(dev);
 
-	list_del_rcu(&pfcp->list);
+	list_del(&pfcp->list);
 	unregister_netdevice_queue(dev, head);
 }
 
@@ -247,11 +247,16 @@ static int __net_init pfcp_net_init(struct net *net)
 static void __net_exit pfcp_net_exit(struct net *net)
 {
 	struct pfcp_net *pn = net_generic(net, pfcp_net_id);
-	struct pfcp_dev *pfcp;
+	struct pfcp_dev *pfcp, *pfcp_next;
+	struct net_device *dev;
 	LIST_HEAD(list);
 
 	rtnl_lock();
-	list_for_each_entry(pfcp, &pn->pfcp_dev_list, list)
+	for_each_netdev(net, dev)
+		if (dev->rtnl_link_ops == &pfcp_link_ops)
+			pfcp_dellink(dev, &list);
+
+	list_for_each_entry_safe(pfcp, pfcp_next, &pn->pfcp_dev_list, list)
 		pfcp_dellink(pfcp->dev, &list);
 
 	unregister_netdevice_many(&list);
-- 
2.39.5

[PATCH 6.12 020/122] cpufreq: Move endif to the end of Kconfig file

[Greg Kroah-Hartman]

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

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

From: Viresh Kumar <viresh.kumar@linaro.org>

[ Upstream commit 7e265fc04690d449a40b413b0348b15c748cea6f ]

It is possible to enable few cpufreq drivers, without the framework
being enabled. This happened due to a bug while moving the entries
earlier. Fix it.

Fixes: 7ee1378736f0 ("cpufreq: Move CPPC configs to common Kconfig and add RISC-V")
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sunil V L <sunilvl@ventanamicro.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://patch.msgid.link/84ac7a8fa72a8fe20487bb0a350a758bce060965.1736488384.git.viresh.kumar@linaro.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/cpufreq/Kconfig | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/drivers/cpufreq/Kconfig b/drivers/cpufreq/Kconfig
index 2561b215432a8..588ab1cc6d557 100644
--- a/drivers/cpufreq/Kconfig
+++ b/drivers/cpufreq/Kconfig
@@ -311,8 +311,6 @@ config QORIQ_CPUFREQ
 	  This adds the CPUFreq driver support for Freescale QorIQ SoCs
 	  which are capable of changing the CPU's frequency dynamically.
 
-endif
-
 config ACPI_CPPC_CPUFREQ
 	tristate "CPUFreq driver based on the ACPI CPPC spec"
 	depends on ACPI_PROCESSOR
@@ -341,4 +339,6 @@ config ACPI_CPPC_CPUFREQ_FIE
 
 	  If in doubt, say N.
 
+endif
+
 endmenu
-- 
2.39.5

[PATCH 6.12 021/122] nfp: bpf: prevent integer overflow in nfp_bpf_event_output()

[Greg Kroah-Hartman]

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

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

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

[ Upstream commit 16ebb6f5b6295c9688749862a39a4889c56227f8 ]

The "sizeof(struct cmsg_bpf_event) + pkt_size + data_size" math could
potentially have an integer wrapping bug on 32bit systems.  Check for
this and return an error.

Fixes: 9816dd35ecec ("nfp: bpf: perf event output helpers support")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://patch.msgid.link/6074805b-e78d-4b8a-bf05-e929b5377c28@stanley.mountain
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/netronome/nfp/bpf/offload.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/netronome/nfp/bpf/offload.c b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
index 9d97cd281f18e..c03558adda91e 100644
--- a/drivers/net/ethernet/netronome/nfp/bpf/offload.c
+++ b/drivers/net/ethernet/netronome/nfp/bpf/offload.c
@@ -458,7 +458,8 @@ int nfp_bpf_event_output(struct nfp_app_bpf *bpf, const void *data,
 	map_id_full = be64_to_cpu(cbe->map_ptr);
 	map_id = map_id_full;
 
-	if (len < sizeof(struct cmsg_bpf_event) + pkt_size + data_size)
+	if (size_add(pkt_size, data_size) > INT_MAX ||
+	    len < sizeof(struct cmsg_bpf_event) + pkt_size + data_size)
 		return -EINVAL;
 	if (cbe->hdr.ver != NFP_CCM_ABI_VERSION)
 		return -EINVAL;
-- 
2.39.5

[PATCH 6.12 022/122] net: xilinx: axienet: Fix IRQ coalescing packet count overflow

[Greg Kroah-Hartman]

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

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

From: Sean Anderson <sean.anderson@linux.dev>

[ Upstream commit c17ff476f53afb30f90bb3c2af77de069c81a622 ]

If coalesce_count is greater than 255 it will not fit in the register and
will overflow. This can be reproduced by running

    # ethtool -C ethX rx-frames 256

which will result in a timeout of 0us instead. Fix this by checking for
invalid values and reporting an error.

Fixes: 8a3b7a252dca ("drivers/net/ethernet/xilinx: added Xilinx AXI Ethernet driver")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Reviewed-by: Shannon Nelson <shannon.nelson@amd.com>
Reviewed-by: Radhey Shyam Pandey <radhey.shyam.pandey@amd.com>
Link: https://patch.msgid.link/20250113163001.2335235-1-sean.anderson@linux.dev
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/xilinx/xilinx_axienet_main.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
index 1fcbcaa85ebdb..de10a2d08c428 100644
--- a/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
+++ b/drivers/net/ethernet/xilinx/xilinx_axienet_main.c
@@ -2056,6 +2056,12 @@ axienet_ethtools_set_coalesce(struct net_device *ndev,
 		return -EBUSY;
 	}
 
+	if (ecoalesce->rx_max_coalesced_frames > 255 ||
+	    ecoalesce->tx_max_coalesced_frames > 255) {
+		NL_SET_ERR_MSG(extack, "frames must be less than 256");
+		return -EINVAL;
+	}
+
 	if (ecoalesce->rx_max_coalesced_frames)
 		lp->coalesce_count_rx = ecoalesce->rx_max_coalesced_frames;
 	if (ecoalesce->rx_coalesce_usecs)
-- 
2.39.5

[PATCH 6.12 023/122] net: fec: handle page_pool_dev_alloc_pages error

[Greg Kroah-Hartman]

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

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

From: Kevin Groeneveld <kgroeneveld@lenbrook.com>

[ Upstream commit 001ba0902046cb6c352494df610718c0763e77a5 ]

The fec_enet_update_cbd function calls page_pool_dev_alloc_pages but did
not handle the case when it returned NULL. There was a WARN_ON(!new_page)
but it would still proceed to use the NULL pointer and then crash.

This case does seem somewhat rare but when the system is under memory
pressure it can happen. One case where I can duplicate this with some
frequency is when writing over a smbd share to a SATA HDD attached to an
imx6q.

Setting /proc/sys/vm/min_free_kbytes to higher values also seems to solve
the problem for my test case. But it still seems wrong that the fec driver
ignores the memory allocation error and can crash.

This commit handles the allocation error by dropping the current packet.

Fixes: 95698ff6177b5 ("net: fec: using page pool to manage RX buffers")
Signed-off-by: Kevin Groeneveld <kgroeneveld@lenbrook.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Reviewed-by: Wei Fang <wei.fang@nxp.com>
Link: https://patch.msgid.link/20250113154846.1765414-1-kgroeneveld@lenbrook.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/freescale/fec_main.c | 19 ++++++++++++++-----
 1 file changed, 14 insertions(+), 5 deletions(-)

diff --git a/drivers/net/ethernet/freescale/fec_main.c b/drivers/net/ethernet/freescale/fec_main.c
index 9d9fcec41488e..49d1748e0c043 100644
--- a/drivers/net/ethernet/freescale/fec_main.c
+++ b/drivers/net/ethernet/freescale/fec_main.c
@@ -1591,19 +1591,22 @@ static void fec_enet_tx(struct net_device *ndev, int budget)
 		fec_enet_tx_queue(ndev, i, budget);
 }
 
-static void fec_enet_update_cbd(struct fec_enet_priv_rx_q *rxq,
+static int fec_enet_update_cbd(struct fec_enet_priv_rx_q *rxq,
 				struct bufdesc *bdp, int index)
 {
 	struct page *new_page;
 	dma_addr_t phys_addr;
 
 	new_page = page_pool_dev_alloc_pages(rxq->page_pool);
-	WARN_ON(!new_page);
-	rxq->rx_skb_info[index].page = new_page;
+	if (unlikely(!new_page))
+		return -ENOMEM;
 
+	rxq->rx_skb_info[index].page = new_page;
 	rxq->rx_skb_info[index].offset = FEC_ENET_XDP_HEADROOM;
 	phys_addr = page_pool_get_dma_addr(new_page) + FEC_ENET_XDP_HEADROOM;
 	bdp->cbd_bufaddr = cpu_to_fec32(phys_addr);
+
+	return 0;
 }
 
 static u32
@@ -1698,6 +1701,7 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 	int cpu = smp_processor_id();
 	struct xdp_buff xdp;
 	struct page *page;
+	__fec32 cbd_bufaddr;
 	u32 sub_len = 4;
 
 #if !defined(CONFIG_M5272)
@@ -1766,12 +1770,17 @@ fec_enet_rx_queue(struct net_device *ndev, int budget, u16 queue_id)
 
 		index = fec_enet_get_bd_index(bdp, &rxq->bd);
 		page = rxq->rx_skb_info[index].page;
+		cbd_bufaddr = bdp->cbd_bufaddr;
+		if (fec_enet_update_cbd(rxq, bdp, index)) {
+			ndev->stats.rx_dropped++;
+			goto rx_processing_done;
+		}
+
 		dma_sync_single_for_cpu(&fep->pdev->dev,
-					fec32_to_cpu(bdp->cbd_bufaddr),
+					fec32_to_cpu(cbd_bufaddr),
 					pkt_len,
 					DMA_FROM_DEVICE);
 		prefetch(page_address(page));
-		fec_enet_update_cbd(rxq, bdp, index);
 
 		if (xdp_prog) {
 			xdp_buff_clear_frags_flag(&xdp);
-- 
2.39.5

[PATCH 6.12 024/122] net: make page_pool_ref_netmem work with net iovs

[Greg Kroah-Hartman]

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

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

From: Pavel Begunkov <asml.silence@gmail.com>

[ Upstream commit cbc16bceea784210d585a42ac9f8f10ce62b300e ]

page_pool_ref_netmem() should work with either netmem representation, but
currently it casts to a page with netmem_to_page(), which will fail with
net iovs. Use netmem_get_pp_ref_count_ref() instead.

Fixes: 8ab79ed50cf1 ("page_pool: devmem support")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: David Wei <dw@davidwei.uk>
Link: https://lore.kernel.org/20250108220644.3528845-2-dw@davidwei.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/net/page_pool/helpers.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/include/net/page_pool/helpers.h b/include/net/page_pool/helpers.h
index 793e6fd78bc5c..60a5347922bec 100644
--- a/include/net/page_pool/helpers.h
+++ b/include/net/page_pool/helpers.h
@@ -294,7 +294,7 @@ static inline long page_pool_unref_page(struct page *page, long nr)
 
 static inline void page_pool_ref_netmem(netmem_ref netmem)
 {
-	atomic_long_inc(&netmem_to_page(netmem)->pp_ref_count);
+	atomic_long_inc(netmem_get_pp_ref_count_ref(netmem));
 }
 
 static inline void page_pool_ref_page(struct page *page)
-- 
2.39.5

[PATCH 6.12 025/122] net/mlx5: Fix RDMA TX steering prio

[Greg Kroah-Hartman]

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

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

From: Patrisious Haddad <phaddad@nvidia.com>

[ Upstream commit c08d3e62b2e73e14da318a1d20b52d0486a28ee0 ]

User added steering rules at RDMA_TX were being added to the first prio,
which is the counters prio.
Fix that so that they are correctly added to the BYPASS_PRIO instead.

Fixes: 24670b1a3166 ("net/mlx5: Add support for RDMA TX steering")
Signed-off-by: Patrisious Haddad <phaddad@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/fs_core.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
index 2eabfcc247c6a..0ce999706d412 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/fs_core.c
@@ -2709,6 +2709,7 @@ struct mlx5_flow_namespace *mlx5_get_flow_namespace(struct mlx5_core_dev *dev,
 		break;
 	case MLX5_FLOW_NAMESPACE_RDMA_TX:
 		root_ns = steering->rdma_tx_root_ns;
+		prio = RDMA_TX_BYPASS_PRIO;
 		break;
 	case MLX5_FLOW_NAMESPACE_RDMA_RX_COUNTERS:
 		root_ns = steering->rdma_rx_root_ns;
-- 
2.39.5

[PATCH 6.12 026/122] net/mlx5: Fix a lockdep warning as part of the write combining test

[Greg Kroah-Hartman]

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

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

From: Yishai Hadas <yishaih@nvidia.com>

[ Upstream commit 1b10a519a45704d4b06ebd9245b272d145752c18 ]

Fix a lockdep warning [1] observed during the write combining test.

The warning indicates a potential nested lock scenario that could lead
to a deadlock.

However, this is a false positive alarm because the SF lock and its
parent lock are distinct ones.

The lockdep confusion arises because the locks belong to the same object
class (i.e., struct mlx5_core_dev).

To resolve this, the code has been refactored to avoid taking both
locks. Instead, only the parent lock is acquired.

[1]
raw_ethernet_bw/2118 is trying to acquire lock:
[  213.619032] ffff88811dd75e08 (&dev->wc_state_lock){+.+.}-{3:3}, at:
               mlx5_wc_support_get+0x18c/0x210 [mlx5_core]
[  213.620270]
[  213.620270] but task is already holding lock:
[  213.620943] ffff88810b585e08 (&dev->wc_state_lock){+.+.}-{3:3}, at:
               mlx5_wc_support_get+0x10c/0x210 [mlx5_core]
[  213.622045]
[  213.622045] other info that might help us debug this:
[  213.622778]  Possible unsafe locking scenario:
[  213.622778]
[  213.623465]        CPU0
[  213.623815]        ----
[  213.624148]   lock(&dev->wc_state_lock);
[  213.624615]   lock(&dev->wc_state_lock);
[  213.625071]
[  213.625071]  *** DEADLOCK ***
[  213.625071]
[  213.625805]  May be due to missing lock nesting notation
[  213.625805]
[  213.626522] 4 locks held by raw_ethernet_bw/2118:
[  213.627019]  #0: ffff88813f80d578 (&uverbs_dev->disassociate_srcu){.+.+}-{0:0},
                at: ib_uverbs_ioctl+0xc4/0x170 [ib_uverbs]
[  213.628088]  #1: ffff88810fb23930 (&file->hw_destroy_rwsem){.+.+}-{3:3},
                at: ib_init_ucontext+0x2d/0xf0 [ib_uverbs]
[  213.629094]  #2: ffff88810fb23878 (&file->ucontext_lock){+.+.}-{3:3},
                at: ib_init_ucontext+0x49/0xf0 [ib_uverbs]
[  213.630106]  #3: ffff88810b585e08 (&dev->wc_state_lock){+.+.}-{3:3},
                at: mlx5_wc_support_get+0x10c/0x210 [mlx5_core]
[  213.631185]
[  213.631185] stack backtrace:
[  213.631718] CPU: 1 UID: 0 PID: 2118 Comm: raw_ethernet_bw Not tainted
               6.12.0-rc7_internal_net_next_mlx5_89a0ad0 #1
[  213.632722] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS
               rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
[  213.633785] Call Trace:
[  213.634099]
[  213.634393]  dump_stack_lvl+0x7e/0xc0
[  213.634806]  print_deadlock_bug+0x278/0x3c0
[  213.635265]  __lock_acquire+0x15f4/0x2c40
[  213.635712]  lock_acquire+0xcd/0x2d0
[  213.636120]  ? mlx5_wc_support_get+0x18c/0x210 [mlx5_core]
[  213.636722]  ? mlx5_ib_enable_lb+0x24/0xa0 [mlx5_ib]
[  213.637277]  __mutex_lock+0x81/0xda0
[  213.637697]  ? mlx5_wc_support_get+0x18c/0x210 [mlx5_core]
[  213.638305]  ? mlx5_wc_support_get+0x18c/0x210 [mlx5_core]
[  213.638902]  ? rcu_read_lock_sched_held+0x3f/0x70
[  213.639400]  ? mlx5_wc_support_get+0x18c/0x210 [mlx5_core]
[  213.640016]  mlx5_wc_support_get+0x18c/0x210 [mlx5_core]
[  213.640615]  set_ucontext_resp+0x68/0x2b0 [mlx5_ib]
[  213.641144]  ? debug_mutex_init+0x33/0x40
[  213.641586]  mlx5_ib_alloc_ucontext+0x18e/0x7b0 [mlx5_ib]
[  213.642145]  ib_init_ucontext+0xa0/0xf0 [ib_uverbs]
[  213.642679]  ib_uverbs_handler_UVERBS_METHOD_GET_CONTEXT+0x95/0xc0
                [ib_uverbs]
[  213.643426]  ? _copy_from_user+0x46/0x80
[  213.643878]  ib_uverbs_cmd_verbs+0xa6b/0xc80 [ib_uverbs]
[  213.644426]  ? ib_uverbs_handler_UVERBS_METHOD_INVOKE_WRITE+0x130/0x130
               [ib_uverbs]
[  213.645213]  ? __lock_acquire+0xa99/0x2c40
[  213.645675]  ? lock_acquire+0xcd/0x2d0
[  213.646101]  ? ib_uverbs_ioctl+0xc4/0x170 [ib_uverbs]
[  213.646625]  ? reacquire_held_locks+0xcf/0x1f0
[  213.647102]  ? do_user_addr_fault+0x45d/0x770
[  213.647586]  ib_uverbs_ioctl+0xe0/0x170 [ib_uverbs]
[  213.648102]  ? ib_uverbs_ioctl+0xc4/0x170 [ib_uverbs]
[  213.648632]  __x64_sys_ioctl+0x4d3/0xaa0
[  213.649060]  ? do_user_addr_fault+0x4a8/0x770
[  213.649528]  do_syscall_64+0x6d/0x140
[  213.649947]  entry_SYSCALL_64_after_hwframe+0x4b/0x53
[  213.650478] RIP: 0033:0x7fa179b0737b
[  213.650893] Code: ff ff ff 85 c0 79 9b 49 c7 c4 ff ff ff ff 5b 5d 4c
               89 e0 41 5c c3 66 0f 1f 84 00 00 00 00 00 f3 0f 1e fa b8
               10 00 00 00 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d
               7d 2a 0f 00 f7 d8 64 89 01 48
[  213.652619] RSP: 002b:00007ffd2e6d46e8 EFLAGS: 00000246 ORIG_RAX:
               0000000000000010
[  213.653390] RAX: ffffffffffffffda RBX: 00007ffd2e6d47f8 RCX:
               00007fa179b0737b
[  213.654084] RDX: 00007ffd2e6d47e0 RSI: 00000000c0181b01 RDI:
               0000000000000003
[  213.654767] RBP: 00007ffd2e6d47c0 R08: 00007fa1799be010 R09:
               0000000000000002
[  213.655453] R10: 00007ffd2e6d4960 R11: 0000000000000246 R12:
               00007ffd2e6d487c
[  213.656170] R13: 0000000000000027 R14: 0000000000000001 R15:
               00007ffd2e6d4f70

Fixes: d98995b4bf98 ("net/mlx5: Reimplement write combining test")
Signed-off-by: Yishai Hadas <yishaih@nvidia.com>
Reviewed-by: Michael Guralnik <michaelgur@nvidia.com>
Reviewed-by: Larysa Zaremba <larysa.zaremba@intel.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/wc.c | 24 ++++++++++----------
 1 file changed, 12 insertions(+), 12 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/wc.c b/drivers/net/ethernet/mellanox/mlx5/core/wc.c
index 1bed75eca97db..740b719e7072d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/wc.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/wc.c
@@ -382,6 +382,7 @@ static void mlx5_core_test_wc(struct mlx5_core_dev *mdev)
 
 bool mlx5_wc_support_get(struct mlx5_core_dev *mdev)
 {
+	struct mutex *wc_state_lock = &mdev->wc_state_lock;
 	struct mlx5_core_dev *parent = NULL;
 
 	if (!MLX5_CAP_GEN(mdev, bf)) {
@@ -400,32 +401,31 @@ bool mlx5_wc_support_get(struct mlx5_core_dev *mdev)
 		 */
 		goto out;
 
-	mutex_lock(&mdev->wc_state_lock);
-
-	if (mdev->wc_state != MLX5_WC_STATE_UNINITIALIZED)
-		goto unlock;
-
 #ifdef CONFIG_MLX5_SF
-	if (mlx5_core_is_sf(mdev))
+	if (mlx5_core_is_sf(mdev)) {
 		parent = mdev->priv.parent_mdev;
+		wc_state_lock = &parent->wc_state_lock;
+	}
 #endif
 
-	if (parent) {
-		mutex_lock(&parent->wc_state_lock);
+	mutex_lock(wc_state_lock);
 
+	if (mdev->wc_state != MLX5_WC_STATE_UNINITIALIZED)
+		goto unlock;
+
+	if (parent) {
 		mlx5_core_test_wc(parent);
 
 		mlx5_core_dbg(mdev, "parent set wc_state=%d\n",
 			      parent->wc_state);
 		mdev->wc_state = parent->wc_state;
 
-		mutex_unlock(&parent->wc_state_lock);
+	} else {
+		mlx5_core_test_wc(mdev);
 	}
 
-	mlx5_core_test_wc(mdev);
-
 unlock:
-	mutex_unlock(&mdev->wc_state_lock);
+	mutex_unlock(wc_state_lock);
 out:
 	mlx5_core_dbg(mdev, "wc_state=%d\n", mdev->wc_state);
 
-- 
2.39.5

[PATCH 6.12 027/122] net/mlx5: SF, Fix add port error handling

[Greg Kroah-Hartman]

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

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

From: Chris Mi <cmi@nvidia.com>

[ Upstream commit 2011a2a18ef00b5b8e4b753acbe6451a8c5f2260 ]

If failed to add SF, error handling doesn't delete the SF from the
SF table. But the hw resources are deleted. So when unload driver,
hw resources will be deleted again. Firmware will report syndrome
0x68def3 which means "SF is not allocated can not deallocate".

Fix it by delete SF from SF table if failed to add SF.

Fixes: 2597ee190b4e ("net/mlx5: Call mlx5_sf_id_erase() once in mlx5_sf_dealloc()")
Signed-off-by: Chris Mi <cmi@nvidia.com>
Reviewed-by: Shay Drori <shayd@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c b/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c
index a96be98be032f..b96909fbeb12d 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/sf/devlink.c
@@ -257,6 +257,7 @@ static int mlx5_sf_add(struct mlx5_core_dev *dev, struct mlx5_sf_table *table,
 	return 0;
 
 esw_err:
+	mlx5_sf_function_id_erase(table, sf);
 	mlx5_sf_free(table, sf);
 	return err;
 }
-- 
2.39.5

[PATCH 6.12 028/122] net/mlx5: Clear port select structure when fail to create

[Greg Kroah-Hartman]

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

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

From: Mark Zhang <markzhang@nvidia.com>

[ Upstream commit 5641e82cb55b4ecbc6366a499300917d2f3e6790 ]

Clear the port select structure on error so no stale values left after
definers are destroyed. That's because the mlx5_lag_destroy_definers()
always try to destroy all lag definers in the tt_map, so in the flow
below lag definers get double-destroyed and cause kernel crash:

  mlx5_lag_port_sel_create()
    mlx5_lag_create_definers()
      mlx5_lag_create_definer()     <- Failed on tt 1
        mlx5_lag_destroy_definers() <- definers[tt=0] gets destroyed
  mlx5_lag_port_sel_create()
    mlx5_lag_create_definers()
      mlx5_lag_create_definer()     <- Failed on tt 0
        mlx5_lag_destroy_definers() <- definers[tt=0] gets double-destroyed

 Unable to handle kernel NULL pointer dereference at virtual address 0000000000000008
 Mem abort info:
   ESR = 0x0000000096000005
   EC = 0x25: DABT (current EL), IL = 32 bits
   SET = 0, FnV = 0
   EA = 0, S1PTW = 0
   FSC = 0x05: level 1 translation fault
 Data abort info:
   ISV = 0, ISS = 0x00000005, ISS2 = 0x00000000
   CM = 0, WnR = 0, TnD = 0, TagAccess = 0
   GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0
 user pgtable: 64k pages, 48-bit VAs, pgdp=0000000112ce2e00
 [0000000000000008] pgd=0000000000000000, p4d=0000000000000000, pud=0000000000000000
 Internal error: Oops: 0000000096000005 [#1] PREEMPT SMP
 Modules linked in: iptable_raw bonding ip_gre ip6_gre gre ip6_tunnel tunnel6 geneve ip6_udp_tunnel udp_tunnel ipip tunnel4 ip_tunnel rdma_ucm(OE) rdma_cm(OE) iw_cm(OE) ib_ipoib(OE) ib_cm(OE) ib_umad(OE) mlx5_ib(OE) ib_uverbs(OE) mlx5_fwctl(OE) fwctl(OE) mlx5_core(OE) mlxdevm(OE) ib_core(OE) mlxfw(OE) memtrack(OE) mlx_compat(OE) openvswitch nsh nf_conncount psample xt_conntrack xt_MASQUERADE nf_conntrack_netlink nfnetlink xfrm_user xfrm_algo xt_addrtype iptable_filter iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 br_netfilter bridge stp llc netconsole overlay efi_pstore sch_fq_codel zram ip_tables crct10dif_ce qemu_fw_cfg fuse ipv6 crc_ccitt [last unloaded: mlx_compat(OE)]
  CPU: 3 UID: 0 PID: 217 Comm: kworker/u53:2 Tainted: G           OE      6.11.0+ #2
  Tainted: [O]=OOT_MODULE, [E]=UNSIGNED_MODULE
  Hardware name: QEMU KVM Virtual Machine, BIOS 0.0.0 02/06/2015
  Workqueue: mlx5_lag mlx5_do_bond_work [mlx5_core]
  pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
  pc : mlx5_del_flow_rules+0x24/0x2c0 [mlx5_core]
  lr : mlx5_lag_destroy_definer+0x54/0x100 [mlx5_core]
  sp : ffff800085fafb00
  x29: ffff800085fafb00 x28: ffff0000da0c8000 x27: 0000000000000000
  x26: ffff0000da0c8000 x25: ffff0000da0c8000 x24: ffff0000da0c8000
  x23: ffff0000c31f81a0 x22: 0400000000000000 x21: ffff0000da0c8000
  x20: 0000000000000000 x19: 0000000000000001 x18: 0000000000000000
  x17: 0000000000000000 x16: 0000000000000000 x15: 0000ffff8b0c9350
  x14: 0000000000000000 x13: ffff800081390d18 x12: ffff800081dc3cc0
  x11: 0000000000000001 x10: 0000000000000b10 x9 : ffff80007ab7304c
  x8 : ffff0000d00711f0 x7 : 0000000000000004 x6 : 0000000000000190
  x5 : ffff00027edb3010 x4 : 0000000000000000 x3 : 0000000000000000
  x2 : ffff0000d39b8000 x1 : ffff0000d39b8000 x0 : 0400000000000000
  Call trace:
   mlx5_del_flow_rules+0x24/0x2c0 [mlx5_core]
   mlx5_lag_destroy_definer+0x54/0x100 [mlx5_core]
   mlx5_lag_destroy_definers+0xa0/0x108 [mlx5_core]
   mlx5_lag_port_sel_create+0x2d4/0x6f8 [mlx5_core]
   mlx5_activate_lag+0x60c/0x6f8 [mlx5_core]
   mlx5_do_bond_work+0x284/0x5c8 [mlx5_core]
   process_one_work+0x170/0x3e0
   worker_thread+0x2d8/0x3e0
   kthread+0x11c/0x128
   ret_from_fork+0x10/0x20
  Code: a9025bf5 aa0003f6 a90363f7 f90023f9 (f9400400)
  ---[ end trace 0000000000000000 ]---

Fixes: dc48516ec7d3 ("net/mlx5: Lag, add support to create definers for LAG")
Signed-off-by: Mark Zhang <markzhang@nvidia.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c b/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c
index ab2717012b79b..39e80704b1c42 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c
@@ -530,7 +530,7 @@ int mlx5_lag_port_sel_create(struct mlx5_lag *ldev,
 	set_tt_map(port_sel, hash_type);
 	err = mlx5_lag_create_definers(ldev, hash_type, ports);
 	if (err)
-		return err;
+		goto clear_port_sel;
 
 	if (port_sel->tunnel) {
 		err = mlx5_lag_create_inner_ttc_table(ldev);
@@ -549,6 +549,8 @@ int mlx5_lag_port_sel_create(struct mlx5_lag *ldev,
 		mlx5_destroy_ttc_table(port_sel->inner.ttc);
 destroy_definers:
 	mlx5_lag_destroy_definers(ldev);
+clear_port_sel:
+	memset(port_sel, 0, sizeof(*port_sel));
 	return err;
 }
 
-- 
2.39.5

[PATCH 6.12 029/122] net/mlx5e: Fix inversion dependency warning while enabling IPsec tunnel

[Greg Kroah-Hartman]

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

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

From: Leon Romanovsky <leonro@nvidia.com>

[ Upstream commit 2c3688090f8a1f085230aa839cc63e4a7b977df0 ]

Attempt to enable IPsec packet offload in tunnel mode in debug kernel
generates the following kernel panic, which is happening due to two
issues:
1. In SA add section, the should be _bh() variant when marking SA mode.
2. There is not needed flush_workqueue in SA delete routine. It is not
needed as at this stage as it is removed from SADB and the running work
will be canceled later in SA free.

 =====================================================
 WARNING: SOFTIRQ-safe -> SOFTIRQ-unsafe lock order detected
 6.12.0+ #4 Not tainted
 -----------------------------------------------------
 charon/1337 [HC0[0]:SC0[4]:HE1:SE0] is trying to acquire:
 ffff88810f365020 (&xa->xa_lock#24){+.+.}-{3:3}, at: mlx5e_xfrm_del_state+0xca/0x1e0 [mlx5_core]

 and this task is already holding:
 ffff88813e0f0d48 (&x->lock){+.-.}-{3:3}, at: xfrm_state_delete+0x16/0x30
 which would create a new lock dependency:
  (&x->lock){+.-.}-{3:3} -> (&xa->xa_lock#24){+.+.}-{3:3}

 but this new dependency connects a SOFTIRQ-irq-safe lock:
  (&x->lock){+.-.}-{3:3}

 ... which became SOFTIRQ-irq-safe at:
   lock_acquire+0x1be/0x520
   _raw_spin_lock_bh+0x34/0x40
   xfrm_timer_handler+0x91/0xd70
   __hrtimer_run_queues+0x1dd/0xa60
   hrtimer_run_softirq+0x146/0x2e0
   handle_softirqs+0x266/0x860
   irq_exit_rcu+0x115/0x1a0
   sysvec_apic_timer_interrupt+0x6e/0x90
   asm_sysvec_apic_timer_interrupt+0x16/0x20
   default_idle+0x13/0x20
   default_idle_call+0x67/0xa0
   do_idle+0x2da/0x320
   cpu_startup_entry+0x50/0x60
   start_secondary+0x213/0x2a0
   common_startup_64+0x129/0x138

 to a SOFTIRQ-irq-unsafe lock:
  (&xa->xa_lock#24){+.+.}-{3:3}

 ... which became SOFTIRQ-irq-unsafe at:
 ...
   lock_acquire+0x1be/0x520
   _raw_spin_lock+0x2c/0x40
   xa_set_mark+0x70/0x110
   mlx5e_xfrm_add_state+0xe48/0x2290 [mlx5_core]
   xfrm_dev_state_add+0x3bb/0xd70
   xfrm_add_sa+0x2451/0x4a90
   xfrm_user_rcv_msg+0x493/0x880
   netlink_rcv_skb+0x12e/0x380
   xfrm_netlink_rcv+0x6d/0x90
   netlink_unicast+0x42f/0x740
   netlink_sendmsg+0x745/0xbe0
   __sock_sendmsg+0xc5/0x190
   __sys_sendto+0x1fe/0x2c0
   __x64_sys_sendto+0xdc/0x1b0
   do_syscall_64+0x6d/0x140
   entry_SYSCALL_64_after_hwframe+0x4b/0x53

 other info that might help us debug this:

  Possible interrupt unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(&xa->xa_lock#24);
                                local_irq_disable();
                                lock(&x->lock);
                                lock(&xa->xa_lock#24);
   <Interrupt>
     lock(&x->lock);

  *** DEADLOCK ***

 2 locks held by charon/1337:
  #0: ffffffff87f8f858 (&net->xfrm.xfrm_cfg_mutex){+.+.}-{4:4}, at: xfrm_netlink_rcv+0x5e/0x90
  #1: ffff88813e0f0d48 (&x->lock){+.-.}-{3:3}, at: xfrm_state_delete+0x16/0x30

 the dependencies between SOFTIRQ-irq-safe lock and the holding lock:
 -> (&x->lock){+.-.}-{3:3} ops: 29 {
    HARDIRQ-ON-W at:
                     lock_acquire+0x1be/0x520
                     _raw_spin_lock_bh+0x34/0x40
                     xfrm_alloc_spi+0xc0/0xe60
                     xfrm_alloc_userspi+0x5f6/0xbc0
                     xfrm_user_rcv_msg+0x493/0x880
                     netlink_rcv_skb+0x12e/0x380
                     xfrm_netlink_rcv+0x6d/0x90
                     netlink_unicast+0x42f/0x740
                     netlink_sendmsg+0x745/0xbe0
                     __sock_sendmsg+0xc5/0x190
                     __sys_sendto+0x1fe/0x2c0
                     __x64_sys_sendto+0xdc/0x1b0
                     do_syscall_64+0x6d/0x140
                     entry_SYSCALL_64_after_hwframe+0x4b/0x53
    IN-SOFTIRQ-W at:
                     lock_acquire+0x1be/0x520
                     _raw_spin_lock_bh+0x34/0x40
                     xfrm_timer_handler+0x91/0xd70
                     __hrtimer_run_queues+0x1dd/0xa60
                     hrtimer_run_softirq+0x146/0x2e0
                     handle_softirqs+0x266/0x860
                     irq_exit_rcu+0x115/0x1a0
                     sysvec_apic_timer_interrupt+0x6e/0x90
                     asm_sysvec_apic_timer_interrupt+0x16/0x20
                     default_idle+0x13/0x20
                     default_idle_call+0x67/0xa0
                     do_idle+0x2da/0x320
                     cpu_startup_entry+0x50/0x60
                     start_secondary+0x213/0x2a0
                     common_startup_64+0x129/0x138
    INITIAL USE at:
                    lock_acquire+0x1be/0x520
                    _raw_spin_lock_bh+0x34/0x40
                    xfrm_alloc_spi+0xc0/0xe60
                    xfrm_alloc_userspi+0x5f6/0xbc0
                    xfrm_user_rcv_msg+0x493/0x880
                    netlink_rcv_skb+0x12e/0x380
                    xfrm_netlink_rcv+0x6d/0x90
                    netlink_unicast+0x42f/0x740
                    netlink_sendmsg+0x745/0xbe0
                    __sock_sendmsg+0xc5/0x190
                    __sys_sendto+0x1fe/0x2c0
                    __x64_sys_sendto+0xdc/0x1b0
                    do_syscall_64+0x6d/0x140
                    entry_SYSCALL_64_after_hwframe+0x4b/0x53
  }
  ... key      at: [<ffffffff87f9cd20>] __key.18+0x0/0x40

 the dependencies between the lock to be acquired
  and SOFTIRQ-irq-unsafe lock:
 -> (&xa->xa_lock#24){+.+.}-{3:3} ops: 9 {
    HARDIRQ-ON-W at:
                     lock_acquire+0x1be/0x520
                     _raw_spin_lock_bh+0x34/0x40
                     mlx5e_xfrm_add_state+0xc5b/0x2290 [mlx5_core]
                     xfrm_dev_state_add+0x3bb/0xd70
                     xfrm_add_sa+0x2451/0x4a90
                     xfrm_user_rcv_msg+0x493/0x880
                     netlink_rcv_skb+0x12e/0x380
                     xfrm_netlink_rcv+0x6d/0x90
                     netlink_unicast+0x42f/0x740
                     netlink_sendmsg+0x745/0xbe0
                     __sock_sendmsg+0xc5/0x190
                     __sys_sendto+0x1fe/0x2c0
                     __x64_sys_sendto+0xdc/0x1b0
                     do_syscall_64+0x6d/0x140
                     entry_SYSCALL_64_after_hwframe+0x4b/0x53
    SOFTIRQ-ON-W at:
                     lock_acquire+0x1be/0x520
                     _raw_spin_lock+0x2c/0x40
                     xa_set_mark+0x70/0x110
                     mlx5e_xfrm_add_state+0xe48/0x2290 [mlx5_core]
                     xfrm_dev_state_add+0x3bb/0xd70
                     xfrm_add_sa+0x2451/0x4a90
                     xfrm_user_rcv_msg+0x493/0x880
                     netlink_rcv_skb+0x12e/0x380
                     xfrm_netlink_rcv+0x6d/0x90
                     netlink_unicast+0x42f/0x740
                     netlink_sendmsg+0x745/0xbe0
                     __sock_sendmsg+0xc5/0x190
                     __sys_sendto+0x1fe/0x2c0
                     __x64_sys_sendto+0xdc/0x1b0
                     do_syscall_64+0x6d/0x140
                     entry_SYSCALL_64_after_hwframe+0x4b/0x53
    INITIAL USE at:
                    lock_acquire+0x1be/0x520
                    _raw_spin_lock_bh+0x34/0x40
                    mlx5e_xfrm_add_state+0xc5b/0x2290 [mlx5_core]
                    xfrm_dev_state_add+0x3bb/0xd70
                    xfrm_add_sa+0x2451/0x4a90
                    xfrm_user_rcv_msg+0x493/0x880
                    netlink_rcv_skb+0x12e/0x380
                    xfrm_netlink_rcv+0x6d/0x90
                    netlink_unicast+0x42f/0x740
                    netlink_sendmsg+0x745/0xbe0
                    __sock_sendmsg+0xc5/0x190
                    __sys_sendto+0x1fe/0x2c0
                    __x64_sys_sendto+0xdc/0x1b0
                    do_syscall_64+0x6d/0x140
                    entry_SYSCALL_64_after_hwframe+0x4b/0x53
  }
  ... key      at: [<ffffffffa078ff60>] __key.48+0x0/0xfffffffffff210a0 [mlx5_core]
  ... acquired at:
    __lock_acquire+0x30a0/0x5040
    lock_acquire+0x1be/0x520
    _raw_spin_lock_bh+0x34/0x40
    mlx5e_xfrm_del_state+0xca/0x1e0 [mlx5_core]
    xfrm_dev_state_delete+0x90/0x160
    __xfrm_state_delete+0x662/0xae0
    xfrm_state_delete+0x1e/0x30
    xfrm_del_sa+0x1c2/0x340
    xfrm_user_rcv_msg+0x493/0x880
    netlink_rcv_skb+0x12e/0x380
    xfrm_netlink_rcv+0x6d/0x90
    netlink_unicast+0x42f/0x740
    netlink_sendmsg+0x745/0xbe0
    __sock_sendmsg+0xc5/0x190
    __sys_sendto+0x1fe/0x2c0
    __x64_sys_sendto+0xdc/0x1b0
    do_syscall_64+0x6d/0x140
    entry_SYSCALL_64_after_hwframe+0x4b/0x53

 stack backtrace:
 CPU: 7 UID: 0 PID: 1337 Comm: charon Not tainted 6.12.0+ #4
 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS rel-1.13.0-0-gf21b5a4aeb02-prebuilt.qemu.org 04/01/2014
 Call Trace:
  <TASK>
  dump_stack_lvl+0x74/0xd0
  check_irq_usage+0x12e8/0x1d90
  ? print_shortest_lock_dependencies_backwards+0x1b0/0x1b0
  ? check_chain_key+0x1bb/0x4c0
  ? __lockdep_reset_lock+0x180/0x180
  ? check_path.constprop.0+0x24/0x50
  ? mark_lock+0x108/0x2fb0
  ? print_circular_bug+0x9b0/0x9b0
  ? mark_lock+0x108/0x2fb0
  ? print_usage_bug.part.0+0x670/0x670
  ? check_prev_add+0x1c4/0x2310
  check_prev_add+0x1c4/0x2310
  __lock_acquire+0x30a0/0x5040
  ? lockdep_set_lock_cmp_fn+0x190/0x190
  ? lockdep_set_lock_cmp_fn+0x190/0x190
  lock_acquire+0x1be/0x520
  ? mlx5e_xfrm_del_state+0xca/0x1e0 [mlx5_core]
  ? lockdep_hardirqs_on_prepare+0x400/0x400
  ? __xfrm_state_delete+0x5f0/0xae0
  ? lock_downgrade+0x6b0/0x6b0
  _raw_spin_lock_bh+0x34/0x40
  ? mlx5e_xfrm_del_state+0xca/0x1e0 [mlx5_core]
  mlx5e_xfrm_del_state+0xca/0x1e0 [mlx5_core]
  xfrm_dev_state_delete+0x90/0x160
  __xfrm_state_delete+0x662/0xae0
  xfrm_state_delete+0x1e/0x30
  xfrm_del_sa+0x1c2/0x340
  ? xfrm_get_sa+0x250/0x250
  ? check_chain_key+0x1bb/0x4c0
  xfrm_user_rcv_msg+0x493/0x880
  ? copy_sec_ctx+0x270/0x270
  ? check_chain_key+0x1bb/0x4c0
  ? lockdep_set_lock_cmp_fn+0x190/0x190
  ? lockdep_set_lock_cmp_fn+0x190/0x190
  netlink_rcv_skb+0x12e/0x380
  ? copy_sec_ctx+0x270/0x270
  ? netlink_ack+0xd90/0xd90
  ? netlink_deliver_tap+0xcd/0xb60
  xfrm_netlink_rcv+0x6d/0x90
  netlink_unicast+0x42f/0x740
  ? netlink_attachskb+0x730/0x730
  ? lock_acquire+0x1be/0x520
  netlink_sendmsg+0x745/0xbe0
  ? netlink_unicast+0x740/0x740
  ? __might_fault+0xbb/0x170
  ? netlink_unicast+0x740/0x740
  __sock_sendmsg+0xc5/0x190
  ? fdget+0x163/0x1d0
  __sys_sendto+0x1fe/0x2c0
  ? __x64_sys_getpeername+0xb0/0xb0
  ? do_user_addr_fault+0x856/0xe30
  ? lock_acquire+0x1be/0x520
  ? __task_pid_nr_ns+0x117/0x410
  ? lock_downgrade+0x6b0/0x6b0
  __x64_sys_sendto+0xdc/0x1b0
  ? lockdep_hardirqs_on_prepare+0x284/0x400
  do_syscall_64+0x6d/0x140
  entry_SYSCALL_64_after_hwframe+0x4b/0x53
 RIP: 0033:0x7f7d31291ba4
 Code: 7d e8 89 4d d4 e8 4c 42 f7 ff 44 8b 4d d0 4c 8b 45 c8 89 c3 44 8b 55 d4 8b 7d e8 b8 2c 00 00 00 48 8b 55 d8 48 8b 75 e0 0f 05 <48> 3d 00 f0 ff ff 77 34 89 df 48 89 45 e8 e8 99 42 f7 ff 48 8b 45
 RSP: 002b:00007f7d2ccd94f0 EFLAGS: 00000297 ORIG_RAX: 000000000000002c
 RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f7d31291ba4
 RDX: 0000000000000028 RSI: 00007f7d2ccd96a0 RDI: 000000000000000a
 RBP: 00007f7d2ccd9530 R08: 00007f7d2ccd9598 R09: 000000000000000c
 R10: 0000000000000000 R11: 0000000000000297 R12: 0000000000000028
 R13: 00007f7d2ccd9598 R14: 00007f7d2ccd96a0 R15: 00000000000000e1
  </TASK>

Fixes: 4c24272b4e2b ("net/mlx5e: Listen to ARP events to update IPsec L2 headers in tunnel mode")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/mellanox/mlx5/core/en_accel/ipsec.c | 16 ++++++----------
 1 file changed, 6 insertions(+), 10 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index ca92e518be766..21857474ad83f 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -768,9 +768,12 @@ static int mlx5e_xfrm_add_state(struct xfrm_state *x,
 				   MLX5_IPSEC_RESCHED);
 
 	if (x->xso.type == XFRM_DEV_OFFLOAD_PACKET &&
-	    x->props.mode == XFRM_MODE_TUNNEL)
-		xa_set_mark(&ipsec->sadb, sa_entry->ipsec_obj_id,
-			    MLX5E_IPSEC_TUNNEL_SA);
+	    x->props.mode == XFRM_MODE_TUNNEL) {
+		xa_lock_bh(&ipsec->sadb);
+		__xa_set_mark(&ipsec->sadb, sa_entry->ipsec_obj_id,
+			      MLX5E_IPSEC_TUNNEL_SA);
+		xa_unlock_bh(&ipsec->sadb);
+	}
 
 out:
 	x->xso.offload_handle = (unsigned long)sa_entry;
@@ -797,7 +800,6 @@ static int mlx5e_xfrm_add_state(struct xfrm_state *x,
 static void mlx5e_xfrm_del_state(struct xfrm_state *x)
 {
 	struct mlx5e_ipsec_sa_entry *sa_entry = to_ipsec_sa_entry(x);
-	struct mlx5_accel_esp_xfrm_attrs *attrs = &sa_entry->attrs;
 	struct mlx5e_ipsec *ipsec = sa_entry->ipsec;
 	struct mlx5e_ipsec_sa_entry *old;
 
@@ -806,12 +808,6 @@ static void mlx5e_xfrm_del_state(struct xfrm_state *x)
 
 	old = xa_erase_bh(&ipsec->sadb, sa_entry->ipsec_obj_id);
 	WARN_ON(old != sa_entry);
-
-	if (attrs->mode == XFRM_MODE_TUNNEL &&
-	    attrs->type == XFRM_DEV_OFFLOAD_PACKET)
-		/* Make sure that no ARP requests are running in parallel */
-		flush_workqueue(ipsec->wq);
-
 }
 
 static void mlx5e_xfrm_free_state(struct xfrm_state *x)
-- 
2.39.5

[PATCH 6.12 030/122] net/mlx5e: Rely on reqid in IPsec tunnel mode

[Greg Kroah-Hartman]

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

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

From: Leon Romanovsky <leonro@nvidia.com>

[ Upstream commit 25f23524dfa227959beb3b2c2c0f38e0222f4cfa ]

All packet offloads SAs have reqid in it to make sure they have
corresponding policy. While it is not strictly needed for transparent
mode, it is extremely important in tunnel mode. In that mode, policy and
SAs have different match criteria.

Policy catches the whole subnet addresses, and SA catches the tunnel gateways
addresses. The source address of such tunnel is not known during egress packet
traversal in flow steering as it is added only after successful encryption.

As reqid is required for packet offload and it is unique for every SA,
we can safely rely on it only.

The output below shows the configured egress policy and SA by strongswan:

[leonro@vm ~]$ sudo ip x s
src 192.169.101.2 dst 192.169.101.1
        proto esp spi 0xc88b7652 reqid 1 mode tunnel
        replay-window 0 flag af-unspec esn
        aead rfc4106(gcm(aes)) 0xe406a01083986e14d116488549094710e9c57bc6 128
        anti-replay esn context:
         seq-hi 0x0, seq 0x0, oseq-hi 0x0, oseq 0x0
         replay_window 1, bitmap-length 1
         00000000
        crypto offload parameters: dev eth2 dir out mode packet

[leonro@064 ~]$ sudo ip x p
src 192.170.0.0/16 dst 192.170.0.0/16
        dir out priority 383615 ptype main
        tmpl src 192.169.101.2 dst 192.169.101.1
                proto esp spi 0xc88b7652 reqid 1 mode tunnel
        crypto offload parameters: dev eth2 mode packet

Fixes: b3beba1fb404 ("net/mlx5e: Allow policies with reqid 0, to support IKE policy holes")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c  | 12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
index e51b03d4c717f..57861d34d46f8 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_fs.c
@@ -1718,23 +1718,21 @@ static int tx_add_rule(struct mlx5e_ipsec_sa_entry *sa_entry)
 		goto err_alloc;
 	}
 
-	if (attrs->family == AF_INET)
-		setup_fte_addr4(spec, &attrs->saddr.a4, &attrs->daddr.a4);
-	else
-		setup_fte_addr6(spec, attrs->saddr.a6, attrs->daddr.a6);
-
 	setup_fte_no_frags(spec);
 	setup_fte_upper_proto_match(spec, &attrs->upspec);
 
 	switch (attrs->type) {
 	case XFRM_DEV_OFFLOAD_CRYPTO:
+		if (attrs->family == AF_INET)
+			setup_fte_addr4(spec, &attrs->saddr.a4, &attrs->daddr.a4);
+		else
+			setup_fte_addr6(spec, attrs->saddr.a6, attrs->daddr.a6);
 		setup_fte_spi(spec, attrs->spi, false);
 		setup_fte_esp(spec);
 		setup_fte_reg_a(spec);
 		break;
 	case XFRM_DEV_OFFLOAD_PACKET:
-		if (attrs->reqid)
-			setup_fte_reg_c4(spec, attrs->reqid);
+		setup_fte_reg_c4(spec, attrs->reqid);
 		err = setup_pkt_reformat(ipsec, attrs, &flow_act);
 		if (err)
 			goto err_pkt_reformat;
-- 
2.39.5

[PATCH 6.12 031/122] net/mlx5e: Always start IPsec sequence number from 1

[Greg Kroah-Hartman]

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

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

From: Leon Romanovsky <leonro@nvidia.com>

[ Upstream commit 7f95b0247764acd739d949ff247db4b76138e55a ]

According to RFC4303, section "3.3.3. Sequence Number Generation",
the first packet sent using a given SA will contain a sequence
number of 1.

This is applicable to both ESN and non-ESN mode, which was not covered
in commit mentioned in Fixes line.

Fixes: 3d42c8cc67a8 ("net/mlx5e: Ensure that IPsec sequence packet number starts from 1")
Signed-off-by: Leon Romanovsky <leonro@nvidia.com>
Reviewed-by: Jacob Keller <jacob.e.keller@intel.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c  |  6 ++++++
 .../mellanox/mlx5/core/en_accel/ipsec_offload.c       | 11 ++++++++---
 2 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
index 21857474ad83f..1baf8933a07cb 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec.c
@@ -724,6 +724,12 @@ static int mlx5e_xfrm_add_state(struct xfrm_state *x,
 	/* check esn */
 	if (x->props.flags & XFRM_STATE_ESN)
 		mlx5e_ipsec_update_esn_state(sa_entry);
+	else
+		/* According to RFC4303, section "3.3.3. Sequence Number Generation",
+		 * the first packet sent using a given SA will contain a sequence
+		 * number of 1.
+		 */
+		sa_entry->esn_state.esn = 1;
 
 	mlx5e_ipsec_build_accel_xfrm_attrs(sa_entry, &sa_entry->attrs);
 
diff --git a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c
index 53cfa39188cb0..820debf3fbbf2 100644
--- a/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c
+++ b/drivers/net/ethernet/mellanox/mlx5/core/en_accel/ipsec_offload.c
@@ -91,8 +91,9 @@ u32 mlx5_ipsec_device_caps(struct mlx5_core_dev *mdev)
 EXPORT_SYMBOL_GPL(mlx5_ipsec_device_caps);
 
 static void mlx5e_ipsec_packet_setup(void *obj, u32 pdn,
-				     struct mlx5_accel_esp_xfrm_attrs *attrs)
+				     struct mlx5e_ipsec_sa_entry *sa_entry)
 {
+	struct mlx5_accel_esp_xfrm_attrs *attrs = &sa_entry->attrs;
 	void *aso_ctx;
 
 	aso_ctx = MLX5_ADDR_OF(ipsec_obj, obj, ipsec_aso);
@@ -120,8 +121,12 @@ static void mlx5e_ipsec_packet_setup(void *obj, u32 pdn,
 	 * active.
 	 */
 	MLX5_SET(ipsec_obj, obj, aso_return_reg, MLX5_IPSEC_ASO_REG_C_4_5);
-	if (attrs->dir == XFRM_DEV_OFFLOAD_OUT)
+	if (attrs->dir == XFRM_DEV_OFFLOAD_OUT) {
 		MLX5_SET(ipsec_aso, aso_ctx, mode, MLX5_IPSEC_ASO_INC_SN);
+		if (!attrs->replay_esn.trigger)
+			MLX5_SET(ipsec_aso, aso_ctx, mode_parameter,
+				 sa_entry->esn_state.esn);
+	}
 
 	if (attrs->lft.hard_packet_limit != XFRM_INF) {
 		MLX5_SET(ipsec_aso, aso_ctx, remove_flow_pkt_cnt,
@@ -175,7 +180,7 @@ static int mlx5_create_ipsec_obj(struct mlx5e_ipsec_sa_entry *sa_entry)
 
 	res = &mdev->mlx5e_res.hw_objs;
 	if (attrs->type == XFRM_DEV_OFFLOAD_PACKET)
-		mlx5e_ipsec_packet_setup(obj, res->pdn, attrs);
+		mlx5e_ipsec_packet_setup(obj, res->pdn, sa_entry);
 
 	err = mlx5_cmd_exec(mdev, in, sizeof(in), out, sizeof(out));
 	if (!err)
-- 
2.39.5

[PATCH 6.12 032/122] netdev: avoid CFI problems with sock priv helpers

[Greg Kroah-Hartman]

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

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

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit a50da36562cd62b41de9bef08edbb3e8af00f118 ]

Li Li reports that casting away callback type may cause issues
for CFI. Let's generate a small wrapper for each callback,
to make sure compiler sees the anticipated types.

Reported-by: Li Li <dualli@chromium.org>
Link: https://lore.kernel.org/CANBPYPjQVqmzZ4J=rVQX87a9iuwmaetULwbK_5_3YWk2eGzkaA@mail.gmail.com
Fixes: 170aafe35cb9 ("netdev: support binding dma-buf to netdevice")
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Link: https://patch.msgid.link/20250115161436.648646-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/core/netdev-genl-gen.c | 14 ++++++++++++--
 tools/net/ynl/ynl-gen-c.py | 16 +++++++++++++---
 2 files changed, 25 insertions(+), 5 deletions(-)

diff --git a/net/core/netdev-genl-gen.c b/net/core/netdev-genl-gen.c
index b28424ae06d5f..8614988fc67b9 100644
--- a/net/core/netdev-genl-gen.c
+++ b/net/core/netdev-genl-gen.c
@@ -178,6 +178,16 @@ static const struct genl_multicast_group netdev_nl_mcgrps[] = {
 	[NETDEV_NLGRP_PAGE_POOL] = { "page-pool", },
 };
 
+static void __netdev_nl_sock_priv_init(void *priv)
+{
+	netdev_nl_sock_priv_init(priv);
+}
+
+static void __netdev_nl_sock_priv_destroy(void *priv)
+{
+	netdev_nl_sock_priv_destroy(priv);
+}
+
 struct genl_family netdev_nl_family __ro_after_init = {
 	.name		= NETDEV_FAMILY_NAME,
 	.version	= NETDEV_FAMILY_VERSION,
@@ -189,6 +199,6 @@ struct genl_family netdev_nl_family __ro_after_init = {
 	.mcgrps		= netdev_nl_mcgrps,
 	.n_mcgrps	= ARRAY_SIZE(netdev_nl_mcgrps),
 	.sock_priv_size	= sizeof(struct list_head),
-	.sock_priv_init	= (void *)netdev_nl_sock_priv_init,
-	.sock_priv_destroy = (void *)netdev_nl_sock_priv_destroy,
+	.sock_priv_init	= __netdev_nl_sock_priv_init,
+	.sock_priv_destroy = __netdev_nl_sock_priv_destroy,
 };
diff --git a/tools/net/ynl/ynl-gen-c.py b/tools/net/ynl/ynl-gen-c.py
index 717530bc9c52e..463f1394ab971 100755
--- a/tools/net/ynl/ynl-gen-c.py
+++ b/tools/net/ynl/ynl-gen-c.py
@@ -2361,6 +2361,17 @@ def print_kernel_family_struct_src(family, cw):
     if not kernel_can_gen_family_struct(family):
         return
 
+    if 'sock-priv' in family.kernel_family:
+        # Generate "trampolines" to make CFI happy
+        cw.write_func("static void", f"__{family.c_name}_nl_sock_priv_init",
+                      [f"{family.c_name}_nl_sock_priv_init(priv);"],
+                      ["void *priv"])
+        cw.nl()
+        cw.write_func("static void", f"__{family.c_name}_nl_sock_priv_destroy",
+                      [f"{family.c_name}_nl_sock_priv_destroy(priv);"],
+                      ["void *priv"])
+        cw.nl()
+
     cw.block_start(f"struct genl_family {family.ident_name}_nl_family __ro_after_init =")
     cw.p('.name\t\t= ' + family.fam_key + ',')
     cw.p('.version\t= ' + family.ver_key + ',')
@@ -2378,9 +2389,8 @@ def print_kernel_family_struct_src(family, cw):
         cw.p(f'.n_mcgrps\t= ARRAY_SIZE({family.c_name}_nl_mcgrps),')
     if 'sock-priv' in family.kernel_family:
         cw.p(f'.sock_priv_size\t= sizeof({family.kernel_family["sock-priv"]}),')
-        # Force cast here, actual helpers take pointer to the real type.
-        cw.p(f'.sock_priv_init\t= (void *){family.c_name}_nl_sock_priv_init,')
-        cw.p(f'.sock_priv_destroy = (void *){family.c_name}_nl_sock_priv_destroy,')
+        cw.p(f'.sock_priv_init\t= __{family.c_name}_nl_sock_priv_init,')
+        cw.p(f'.sock_priv_destroy = __{family.c_name}_nl_sock_priv_destroy,')
     cw.block_end(';')
 
 
-- 
2.39.5

[PATCH 6.12 033/122] drm/tests: helpers: Fix compiler warning

[Greg Kroah-Hartman]

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

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

From: Yu-Chun Lin <eleanor15x@gmail.com>

[ Upstream commit b9097e4c8bf3934e4e07e6f9b88741957fef351e ]

Delete one line break to make the format correct, resolving the
following warning during a W=1 build:

>> drivers/gpu/drm/tests/drm_kunit_helpers.c:324: warning: bad line: for a KUnit test

Fixes: caa714f86699 ("drm/tests: helpers: Add helper for drm_display_mode_from_cea_vic()")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202501032001.O6WY1VCW-lkp@intel.com/
Reviewed-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Tested-by: Kuan-Wei Chiu <visitorckw@gmail.com>
Reviewed-by: Dmitry Baryshkov <dmitry.baryshkov@linaro.org>
Signed-off-by: Yu-Chun Lin <eleanor15x@gmail.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250104165134.1695864-1-eleanor15x@gmail.com
Signed-off-by: Maxime Ripard <mripard@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/tests/drm_kunit_helpers.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/tests/drm_kunit_helpers.c b/drivers/gpu/drm/tests/drm_kunit_helpers.c
index 04a6b8cc62ac6..3c0b7824c0be3 100644
--- a/drivers/gpu/drm/tests/drm_kunit_helpers.c
+++ b/drivers/gpu/drm/tests/drm_kunit_helpers.c
@@ -320,8 +320,7 @@ static void kunit_action_drm_mode_destroy(void *ptr)
 }
 
 /**
- * drm_kunit_display_mode_from_cea_vic() - return a mode for CEA VIC
-					   for a KUnit test
+ * drm_kunit_display_mode_from_cea_vic() - return a mode for CEA VIC for a KUnit test
  * @test: The test context object
  * @dev: DRM device
  * @video_code: CEA VIC of the mode
-- 
2.39.5

[PATCH 6.12 034/122] drm/vmwgfx: Unreserve BO on error

[Greg Kroah-Hartman]

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

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

From: Ian Forbes <ian.forbes@broadcom.com>

[ Upstream commit cb343ded122e0bf41e4b2a9f89386296451be109 ]

Unlock BOs in reverse order.
Add an acquire context so that lockdep doesn't complain.

Fixes: d6667f0ddf46 ("drm/vmwgfx: Fix handling of dumb buffers")
Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241210195535.2074918-1-ian.forbes@broadcom.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_kms.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
index 10d596cb4b402..5f99f7437ae61 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_kms.c
@@ -750,6 +750,7 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 	struct vmw_plane_state *old_vps = vmw_plane_state_to_vps(old_state);
 	struct vmw_bo *old_bo = NULL;
 	struct vmw_bo *new_bo = NULL;
+	struct ww_acquire_ctx ctx;
 	s32 hotspot_x, hotspot_y;
 	int ret;
 
@@ -769,9 +770,11 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 	if (du->cursor_surface)
 		du->cursor_age = du->cursor_surface->snooper.age;
 
+	ww_acquire_init(&ctx, &reservation_ww_class);
+
 	if (!vmw_user_object_is_null(&old_vps->uo)) {
 		old_bo = vmw_user_object_buffer(&old_vps->uo);
-		ret = ttm_bo_reserve(&old_bo->tbo, false, false, NULL);
+		ret = ttm_bo_reserve(&old_bo->tbo, false, false, &ctx);
 		if (ret != 0)
 			return;
 	}
@@ -779,9 +782,14 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 	if (!vmw_user_object_is_null(&vps->uo)) {
 		new_bo = vmw_user_object_buffer(&vps->uo);
 		if (old_bo != new_bo) {
-			ret = ttm_bo_reserve(&new_bo->tbo, false, false, NULL);
-			if (ret != 0)
+			ret = ttm_bo_reserve(&new_bo->tbo, false, false, &ctx);
+			if (ret != 0) {
+				if (old_bo) {
+					ttm_bo_unreserve(&old_bo->tbo);
+					ww_acquire_fini(&ctx);
+				}
 				return;
+			}
 		} else {
 			new_bo = NULL;
 		}
@@ -803,10 +811,12 @@ vmw_du_cursor_plane_atomic_update(struct drm_plane *plane,
 						hotspot_x, hotspot_y);
 	}
 
-	if (old_bo)
-		ttm_bo_unreserve(&old_bo->tbo);
 	if (new_bo)
 		ttm_bo_unreserve(&new_bo->tbo);
+	if (old_bo)
+		ttm_bo_unreserve(&old_bo->tbo);
+
+	ww_acquire_fini(&ctx);
 
 	du->cursor_x = new_state->crtc_x + du->set_gui_x;
 	du->cursor_y = new_state->crtc_y + du->set_gui_y;
-- 
2.39.5

[PATCH 6.12 035/122] drm/vmwgfx: Add new keep_resv BO param

[Greg Kroah-Hartman]

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

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

From: Ian Forbes <ian.forbes@broadcom.com>

[ Upstream commit b7d40627813799870e72729c6fc979a8a40d9ba6 ]

Adds a new BO param that keeps the reservation locked after creation.
This removes the need to re-reserve the BO after creation which is a
waste of cycles.

This also fixes a bug in vmw_prime_import_sg_table where the imported
reservation is unlocked twice.

Signed-off-by: Ian Forbes <ian.forbes@broadcom.com>
Fixes: b32233acceff ("drm/vmwgfx: Fix prime import/export")
Reviewed-by: Zack Rusin <zack.rusin@broadcom.com>
Signed-off-by: Zack Rusin <zack.rusin@broadcom.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250110185335.15301-1-ian.forbes@broadcom.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/vmwgfx/vmwgfx_bo.c         | 3 ++-
 drivers/gpu/drm/vmwgfx/vmwgfx_bo.h         | 3 ++-
 drivers/gpu/drm/vmwgfx/vmwgfx_drv.c        | 7 ++-----
 drivers/gpu/drm/vmwgfx/vmwgfx_gem.c        | 1 +
 drivers/gpu/drm/vmwgfx/vmwgfx_shader.c     | 7 ++-----
 drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 5 ++---
 6 files changed, 11 insertions(+), 15 deletions(-)

diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
index a0e433fbcba67..183cda50094cb 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.c
@@ -443,7 +443,8 @@ static int vmw_bo_init(struct vmw_private *dev_priv,
 
 	if (params->pin)
 		ttm_bo_pin(&vmw_bo->tbo);
-	ttm_bo_unreserve(&vmw_bo->tbo);
+	if (!params->keep_resv)
+		ttm_bo_unreserve(&vmw_bo->tbo);
 
 	return 0;
 }
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
index 43b5439ec9f76..c21ba7ff77368 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_bo.h
@@ -56,8 +56,9 @@ struct vmw_bo_params {
 	u32 domain;
 	u32 busy_domain;
 	enum ttm_bo_type bo_type;
-	size_t size;
 	bool pin;
+	bool keep_resv;
+	size_t size;
 	struct dma_resv *resv;
 	struct sg_table *sg;
 };
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
index 2825dd3149ed5..2e84e1029732d 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
@@ -401,7 +401,8 @@ static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
 		.busy_domain = VMW_BO_DOMAIN_SYS,
 		.bo_type = ttm_bo_type_kernel,
 		.size = PAGE_SIZE,
-		.pin = true
+		.pin = true,
+		.keep_resv = true,
 	};
 
 	/*
@@ -413,10 +414,6 @@ static int vmw_dummy_query_bo_create(struct vmw_private *dev_priv)
 	if (unlikely(ret != 0))
 		return ret;
 
-	ret = ttm_bo_reserve(&vbo->tbo, false, true, NULL);
-	BUG_ON(ret != 0);
-	vmw_bo_pin_reserved(vbo, true);
-
 	ret = ttm_bo_kmap(&vbo->tbo, 0, 1, &map);
 	if (likely(ret == 0)) {
 		result = ttm_kmap_obj_virtual(&map, &dummy);
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
index b9857f37ca1ac..ed5015ced3920 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_gem.c
@@ -206,6 +206,7 @@ struct drm_gem_object *vmw_prime_import_sg_table(struct drm_device *dev,
 		.bo_type = ttm_bo_type_sg,
 		.size = attach->dmabuf->size,
 		.pin = false,
+		.keep_resv = true,
 		.resv = attach->dmabuf->resv,
 		.sg = table,
 
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
index a01ca3226d0af..7fb1c88bcc475 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_shader.c
@@ -896,7 +896,8 @@ int vmw_compat_shader_add(struct vmw_private *dev_priv,
 		.busy_domain = VMW_BO_DOMAIN_SYS,
 		.bo_type = ttm_bo_type_device,
 		.size = size,
-		.pin = true
+		.pin = true,
+		.keep_resv = true,
 	};
 
 	if (!vmw_shader_id_ok(user_key, shader_type))
@@ -906,10 +907,6 @@ int vmw_compat_shader_add(struct vmw_private *dev_priv,
 	if (unlikely(ret != 0))
 		goto out;
 
-	ret = ttm_bo_reserve(&buf->tbo, false, true, NULL);
-	if (unlikely(ret != 0))
-		goto no_reserve;
-
 	/* Map and copy shader bytecode. */
 	ret = ttm_bo_kmap(&buf->tbo, 0, PFN_UP(size), &map);
 	if (unlikely(ret != 0)) {
diff --git a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
index 621d98b376bbb..5553892d7c3e0 100644
--- a/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
+++ b/drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c
@@ -572,15 +572,14 @@ int vmw_bo_create_and_populate(struct vmw_private *dev_priv,
 		.busy_domain = domain,
 		.bo_type = ttm_bo_type_kernel,
 		.size = bo_size,
-		.pin = true
+		.pin = true,
+		.keep_resv = true,
 	};
 
 	ret = vmw_bo_create(dev_priv, &bo_params, &vbo);
 	if (unlikely(ret != 0))
 		return ret;
 
-	ret = ttm_bo_reserve(&vbo->tbo, false, true, NULL);
-	BUG_ON(ret != 0);
 	ret = vmw_ttm_populate(vbo->tbo.bdev, vbo->tbo.ttm, &ctx);
 	if (likely(ret == 0)) {
 		struct vmw_ttm_tt *vmw_tt =
-- 
2.39.5

[PATCH 6.12 036/122] drm/v3d: Ensure job pointer is set to NULL after job completion

[Greg Kroah-Hartman]

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

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

From: Maíra Canal <mcanal@igalia.com>

[ Upstream commit e4b5ccd392b92300a2b341705cc4805681094e49 ]

After a job completes, the corresponding pointer in the device must
be set to NULL. Failing to do so triggers a warning when unloading
the driver, as it appears the job is still active. To prevent this,
assign the job pointer to NULL after completing the job, indicating
the job has finished.

Fixes: 14d1d1908696 ("drm/v3d: Remove the bad signaled() implementation.")
Signed-off-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Jose Maria Casanova Crespo <jmcasanova@igalia.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250113154741.67520-1-mcanal@igalia.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpu/drm/v3d/v3d_irq.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/v3d/v3d_irq.c b/drivers/gpu/drm/v3d/v3d_irq.c
index 20bf33702c3c4..da203045df9be 100644
--- a/drivers/gpu/drm/v3d/v3d_irq.c
+++ b/drivers/gpu/drm/v3d/v3d_irq.c
@@ -108,6 +108,7 @@ v3d_irq(int irq, void *arg)
 		v3d_job_update_stats(&v3d->bin_job->base, V3D_BIN);
 		trace_v3d_bcl_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
+		v3d->bin_job = NULL;
 		status = IRQ_HANDLED;
 	}
 
@@ -118,6 +119,7 @@ v3d_irq(int irq, void *arg)
 		v3d_job_update_stats(&v3d->render_job->base, V3D_RENDER);
 		trace_v3d_rcl_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
+		v3d->render_job = NULL;
 		status = IRQ_HANDLED;
 	}
 
@@ -128,6 +130,7 @@ v3d_irq(int irq, void *arg)
 		v3d_job_update_stats(&v3d->csd_job->base, V3D_CSD);
 		trace_v3d_csd_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
+		v3d->csd_job = NULL;
 		status = IRQ_HANDLED;
 	}
 
@@ -165,6 +168,7 @@ v3d_hub_irq(int irq, void *arg)
 		v3d_job_update_stats(&v3d->tfu_job->base, V3D_TFU);
 		trace_v3d_tfu_irq(&v3d->drm, fence->seqno);
 		dma_fence_signal(&fence->base);
+		v3d->tfu_job = NULL;
 		status = IRQ_HANDLED;
 	}
 
-- 
2.39.5

[PATCH 6.12 037/122] reset: rzg2l-usbphy-ctrl: Assign proper of node to the allocated device

[Greg Kroah-Hartman]

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

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

From: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>

[ Upstream commit 1f8af9712413f456849fdf3f3a782cbe099476d7 ]

The platform device named "rzg2l-usb-vbus-regulator", allocated by
the rzg2l-usbphy-ctrl driver, is used to instantiate a regulator driver.
This regulator driver is associated with a device tree (DT) node, which
is a child of the rzg2l-usbphy-ctrl DT node. The regulator's DT node allows
consumer nodes to reference the regulator and configure the regulator as
needed.

Starting with commit cd7a38c40b23 ("regulator: core: do not silently ignore
provided init_data") the struct regulator_dev::dev::of_node is no longer
populated using of_node_get(config->of_node) if the regulator does not
provide init_data. Since the rzg2l-usb-vbus-regulator does not provide
init_data, this behaviour causes the of_find_regulator_by_node() function
to fails, resulting in errors when attempting to request the regulator.

To fix this issue, call device_set_of_node_from_dev() for the
"rzg2l-usb-vbus-regulator" platform device.

Fixes: 84fbd6198766 ("regulator: Add Renesas RZ/G2L USB VBUS regulator driver")
Signed-off-by: Claudiu Beznea <claudiu.beznea.uj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://lore.kernel.org/r/20241119085554.1035881-1-claudiu.beznea.uj@bp.renesas.com
Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/reset/reset-rzg2l-usbphy-ctrl.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/reset/reset-rzg2l-usbphy-ctrl.c b/drivers/reset/reset-rzg2l-usbphy-ctrl.c
index 1cd157f4f03b4..4e2ac1f0060c0 100644
--- a/drivers/reset/reset-rzg2l-usbphy-ctrl.c
+++ b/drivers/reset/reset-rzg2l-usbphy-ctrl.c
@@ -176,6 +176,7 @@ static int rzg2l_usbphy_ctrl_probe(struct platform_device *pdev)
 	vdev->dev.parent = dev;
 	priv->vdev = vdev;
 
+	device_set_of_node_from_dev(&vdev->dev, dev);
 	error = platform_device_add(vdev);
 	if (error)
 		goto err_device_put;
-- 
2.39.5

[PATCH 6.12 038/122] soc: ti: pruss: Fix pruss APIs

[Greg Kroah-Hartman]

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

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

From: MD Danish Anwar <danishanwar@ti.com>

[ Upstream commit 202580b60229345dc2637099f10c8a8857c1fdc2 ]

PRUSS APIs in pruss_driver.h produce lots of compilation errors when
CONFIG_TI_PRUSS is not set.

The errors and warnings,
warning: returning 'void *' from a function with return type 'int' makes
	integer from pointer without a cast [-Wint-conversion]
error: expected identifier or '(' before '{' token

Fix these warnings and errors by fixing the return type of pruss APIs as
well as removing the misplaced semicolon from pruss_cfg_xfr_enable()

Fixes: 0211cc1e4fbb ("soc: ti: pruss: Add helper functions to set GPI mode, MII_RT_event and XFR")
Signed-off-by: MD Danish Anwar <danishanwar@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20241220100508.1554309-2-danishanwar@ti.com
Signed-off-by: Nishanth Menon <nm@ti.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/pruss_driver.h | 12 ++++++------
 1 file changed, 6 insertions(+), 6 deletions(-)

diff --git a/include/linux/pruss_driver.h b/include/linux/pruss_driver.h
index c9a31c567e85b..2e18fef1a2e10 100644
--- a/include/linux/pruss_driver.h
+++ b/include/linux/pruss_driver.h
@@ -144,32 +144,32 @@ static inline int pruss_release_mem_region(struct pruss *pruss,
 static inline int pruss_cfg_get_gpmux(struct pruss *pruss,
 				      enum pruss_pru_id pru_id, u8 *mux)
 {
-	return ERR_PTR(-EOPNOTSUPP);
+	return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_set_gpmux(struct pruss *pruss,
 				      enum pruss_pru_id pru_id, u8 mux)
 {
-	return ERR_PTR(-EOPNOTSUPP);
+	return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_gpimode(struct pruss *pruss,
 				    enum pruss_pru_id pru_id,
 				    enum pruss_gpi_mode mode)
 {
-	return ERR_PTR(-EOPNOTSUPP);
+	return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_miirt_enable(struct pruss *pruss, bool enable)
 {
-	return ERR_PTR(-EOPNOTSUPP);
+	return -EOPNOTSUPP;
 }
 
 static inline int pruss_cfg_xfr_enable(struct pruss *pruss,
 				       enum pru_type pru_type,
-				       bool enable);
+				       bool enable)
 {
-	return ERR_PTR(-EOPNOTSUPP);
+	return -EOPNOTSUPP;
 }
 
 #endif /* CONFIG_TI_PRUSS */
-- 
2.39.5

[PATCH 6.12 039/122] i2c: core: fix reference leak in i2c_register_adapter()

[Greg Kroah-Hartman]

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

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

From: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>

[ Upstream commit 3f8c4f5e9a57868fa107016c81165686d23325f2 ]

The reference count of the device incremented in device_initialize() is
not decremented when device_add() fails. Add a put_device() call before
returning from the function.

This bug was found by an experimental static analysis tool that I am
developing.

Fixes: 60f68597024d ("i2c: core: Setup i2c_adapter runtime-pm before calling device_add()")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/i2c-core-base.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/i2c/i2c-core-base.c b/drivers/i2c/i2c-core-base.c
index 7c810893bfa33..75d30861ffe21 100644
--- a/drivers/i2c/i2c-core-base.c
+++ b/drivers/i2c/i2c-core-base.c
@@ -1562,6 +1562,7 @@ static int i2c_register_adapter(struct i2c_adapter *adap)
 	res = device_add(&adap->dev);
 	if (res) {
 		pr_err("adapter '%s': can't register device (%d)\n", adap->name, res);
+		put_device(&adap->dev);
 		goto out_list;
 	}
 
-- 
2.39.5

[PATCH 6.12 040/122] platform/x86: dell-uart-backlight: fix serdev race

[Greg Kroah-Hartman]

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

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

From: Chenyuan Yang <chenyuan0y@gmail.com>

[ Upstream commit 1b2128aa2d45ab20b22548dcf4b48906298ca7fd ]

The dell_uart_bl_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.

This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.

Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().

Note, serdev_device_set_baudrate() and serdev_device_set_flow_control()
calls should be after the devm_serdev_device_open() call.

Fixes: 484bae9e4d6a ("platform/x86: Add new Dell UART backlight driver")
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250111180118.2274516-1-chenyuan0y@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/dell/dell-uart-backlight.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/dell/dell-uart-backlight.c b/drivers/platform/x86/dell/dell-uart-backlight.c
index 3995f90add456..c45bc332af7a0 100644
--- a/drivers/platform/x86/dell/dell-uart-backlight.c
+++ b/drivers/platform/x86/dell/dell-uart-backlight.c
@@ -283,6 +283,9 @@ static int dell_uart_bl_serdev_probe(struct serdev_device *serdev)
 	init_waitqueue_head(&dell_bl->wait_queue);
 	dell_bl->dev = dev;
 
+	serdev_device_set_drvdata(serdev, dell_bl);
+	serdev_device_set_client_ops(serdev, &dell_uart_bl_serdev_ops);
+
 	ret = devm_serdev_device_open(dev, serdev);
 	if (ret)
 		return dev_err_probe(dev, ret, "opening UART device\n");
@@ -290,8 +293,6 @@ static int dell_uart_bl_serdev_probe(struct serdev_device *serdev)
 	/* 9600 bps, no flow control, these are the default but set them to be sure */
 	serdev_device_set_baudrate(serdev, 9600);
 	serdev_device_set_flow_control(serdev, false);
-	serdev_device_set_drvdata(serdev, dell_bl);
-	serdev_device_set_client_ops(serdev, &dell_uart_bl_serdev_ops);
 
 	get_version[0] = DELL_SOF(GET_CMD_LEN);
 	get_version[1] = CMD_GET_VERSION;
-- 
2.39.5

[PATCH 6.12 041/122] platform/x86: lenovo-yoga-tab2-pro-1380-fastcharger: fix serdev race

[Greg Kroah-Hartman]

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

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

From: Chenyuan Yang <chenyuan0y@gmail.com>

[ Upstream commit 59616a91e5e74833b2008b56c66879857c616006 ]

The yt2_1380_fc_serdev_probe() function calls devm_serdev_device_open()
before setting the client ops via serdev_device_set_client_ops(). This
ordering can trigger a NULL pointer dereference in the serdev controller's
receive_buf handler, as it assumes serdev->ops is valid when
SERPORT_ACTIVE is set.

This is similar to the issue fixed in commit 5e700b384ec1
("platform/chrome: cros_ec_uart: properly fix race condition") where
devm_serdev_device_open() was called before fully initializing the
device.

Fix the race by ensuring client ops are set before enabling the port via
devm_serdev_device_open().

Note, serdev_device_set_baudrate() and serdev_device_set_flow_control()
calls should be after the devm_serdev_device_open() call.

Fixes: b2ed33e8d486 ("platform/x86: Add lenovo-yoga-tab2-pro-1380-fastcharger driver")
Signed-off-by: Chenyuan Yang <chenyuan0y@gmail.com>
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20250111180951.2277757-1-chenyuan0y@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c b/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
index d525bdc8ca9b3..32d9b6009c422 100644
--- a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
+++ b/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
@@ -199,14 +199,15 @@ static int yt2_1380_fc_serdev_probe(struct serdev_device *serdev)
 	if (ret)
 		return ret;
 
+	serdev_device_set_drvdata(serdev, fc);
+	serdev_device_set_client_ops(serdev, &yt2_1380_fc_serdev_ops);
+
 	ret = devm_serdev_device_open(dev, serdev);
 	if (ret)
 		return dev_err_probe(dev, ret, "opening UART device\n");
 
 	serdev_device_set_baudrate(serdev, 600);
 	serdev_device_set_flow_control(serdev, false);
-	serdev_device_set_drvdata(serdev, fc);
-	serdev_device_set_client_ops(serdev, &yt2_1380_fc_serdev_ops);
 
 	ret = devm_extcon_register_notifier_all(dev, fc->extcon, &fc->nb);
 	if (ret)
-- 
2.39.5

[PATCH 6.12 042/122] hwmon: (tmp513) Fix division of negative numbers

[Greg Kroah-Hartman]

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

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

From: David Lechner <dlechner@baylibre.com>

[ Upstream commit e2c68cea431d65292b592c9f8446c918d45fcf78 ]

Fix several issues with division of negative numbers in the tmp513
driver.

The docs on the DIV_ROUND_CLOSEST macro explain that dividing a negative
value by an unsigned type is undefined behavior. The driver was doing
this in several places, i.e. data->shunt_uohms has type of u32. The
actual "undefined" behavior is that it converts both values to unsigned
before doing the division, for example:

    int ret = DIV_ROUND_CLOSEST(-100, 3U);

results in ret == 1431655732 instead of -33.

Furthermore the MILLI macro has a type of unsigned long. Multiplying a
signed long by an unsigned long results in an unsigned long.

So, we need to cast both MILLI and data data->shunt_uohms to long when
using the DIV_ROUND_CLOSEST macro.

Fixes: f07f9d2467f4 ("hwmon: (tmp513) Use SI constants from units.h")
Fixes: 59dfa75e5d82 ("hwmon: Add driver for Texas Instruments TMP512/513 sensor chips.")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20250114-fix-si-prefix-macro-sign-bugs-v1-1-696fd8d10f00@baylibre.com
[groeck: Drop some continuation lines]
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/tmp513.c | 7 ++++---
 1 file changed, 4 insertions(+), 3 deletions(-)

diff --git a/drivers/hwmon/tmp513.c b/drivers/hwmon/tmp513.c
index 1c2cb12071b80..5acbfd7d088dd 100644
--- a/drivers/hwmon/tmp513.c
+++ b/drivers/hwmon/tmp513.c
@@ -207,7 +207,8 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos,
 		*val = sign_extend32(regval,
 				     reg == TMP51X_SHUNT_CURRENT_RESULT ?
 				     16 - tmp51x_get_pga_shift(data) : 15);
-		*val = DIV_ROUND_CLOSEST(*val * 10 * MILLI, data->shunt_uohms);
+		*val = DIV_ROUND_CLOSEST(*val * 10 * (long)MILLI, (long)data->shunt_uohms);
+
 		break;
 	case TMP51X_BUS_VOLTAGE_RESULT:
 	case TMP51X_BUS_VOLTAGE_H_LIMIT:
@@ -223,7 +224,7 @@ static int tmp51x_get_value(struct tmp51x_data *data, u8 reg, u8 pos,
 	case TMP51X_BUS_CURRENT_RESULT:
 		// Current = (ShuntVoltage * CalibrationRegister) / 4096
 		*val = sign_extend32(regval, 15) * (long)data->curr_lsb_ua;
-		*val = DIV_ROUND_CLOSEST(*val, MILLI);
+		*val = DIV_ROUND_CLOSEST(*val, (long)MILLI);
 		break;
 	case TMP51X_LOCAL_TEMP_RESULT:
 	case TMP51X_REMOTE_TEMP_RESULT_1:
@@ -263,7 +264,7 @@ static int tmp51x_set_value(struct tmp51x_data *data, u8 reg, long val)
 		 * The user enter current value and we convert it to
 		 * voltage. 1lsb = 10uV
 		 */
-		val = DIV_ROUND_CLOSEST(val * data->shunt_uohms, 10 * MILLI);
+		val = DIV_ROUND_CLOSEST(val * (long)data->shunt_uohms, 10 * (long)MILLI);
 		max_val = U16_MAX >> tmp51x_get_pga_shift(data);
 		regval = clamp_val(val, -max_val, max_val);
 		break;
-- 
2.39.5

[PATCH 6.12 043/122] Revert "mtd: spi-nor: core: replace dummy buswidth from addr to data"

[Greg Kroah-Hartman]

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

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

From: Pratyush Yadav <pratyush@kernel.org>

[ Upstream commit d15638bf76ad47874ecb5dc386f0945fc0b2a875 ]

This reverts commit 98d1fb94ce75f39febd456d6d3cbbe58b6678795.

The commit uses data nbits instead of addr nbits for dummy phase. This
causes a regression for all boards where spi-tx-bus-width is smaller
than spi-rx-bus-width. It is a common pattern for boards to have
spi-tx-bus-width == 1 and spi-rx-bus-width > 1. The regression causes
all reads with a dummy phase to become unavailable for such boards,
leading to a usually slower 0-dummy-cycle read being selected.

Most controllers' supports_op hooks call spi_mem_default_supports_op().
In spi_mem_default_supports_op(), spi_mem_check_buswidth() is called to
check if the buswidths for the op can actually be supported by the
board's wiring. This wiring information comes from (among other things)
the spi-{tx,rx}-bus-width DT properties. Based on these properties,
SPI_TX_* or SPI_RX_* flags are set by of_spi_parse_dt().
spi_mem_check_buswidth() then uses these flags to make the decision
whether an op can be supported by the board's wiring (in a way,
indirectly checking against spi-{rx,tx}-bus-width).

Now the tricky bit here is that spi_mem_check_buswidth() does:

	if (op->dummy.nbytes &&
	    spi_check_buswidth_req(mem, op->dummy.buswidth, true))
		return false;

The true argument to spi_check_buswidth_req() means the op is treated as
a TX op. For a board that has say 1-bit TX and 4-bit RX, a 4-bit dummy
TX is considered as unsupported, and the op gets rejected.

The commit being reverted uses the data buswidth for dummy buswidth. So
for reads, the RX buswidth gets used for the dummy phase, uncovering
this issue. In reality, a dummy phase is neither RX nor TX. As the name
suggests, these are just dummy cycles that send or receive no data, and
thus don't really need to have any buswidth at all.

Ideally, dummy phases should not be checked against the board's wiring
capabilities at all, and should only be sanity-checked for having a sane
buswidth value. Since we are now at rc7 and such a change might
introduce many unexpected bugs, revert the commit for now. It can be
sent out later along with the spi_mem_check_buswidth() fix.

Fixes: 98d1fb94ce75 ("mtd: spi-nor: core: replace dummy buswidth from addr to data")
Reported-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Closes: https://lore.kernel.org/linux-mtd/3342163.44csPzL39Z@steina-w/
Tested-by: Alexander Stein <alexander.stein@ew.tq-group.com>
Reviewed-by: Tudor Ambarus <tudor.ambarus@linaro.org>
Signed-off-by: Pratyush Yadav <pratyush@kernel.org>
Signed-off-by: Miquel Raynal <miquel.raynal@bootlin.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/mtd/spi-nor/core.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/mtd/spi-nor/core.c b/drivers/mtd/spi-nor/core.c
index 8c57df44c40fe..9d6e85bf227b9 100644
--- a/drivers/mtd/spi-nor/core.c
+++ b/drivers/mtd/spi-nor/core.c
@@ -89,7 +89,7 @@ void spi_nor_spimem_setup_op(const struct spi_nor *nor,
 		op->addr.buswidth = spi_nor_get_protocol_addr_nbits(proto);
 
 	if (op->dummy.nbytes)
-		op->dummy.buswidth = spi_nor_get_protocol_data_nbits(proto);
+		op->dummy.buswidth = spi_nor_get_protocol_addr_nbits(proto);
 
 	if (op->data.nbytes)
 		op->data.buswidth = spi_nor_get_protocol_data_nbits(proto);
-- 
2.39.5

[PATCH 6.12 044/122] i2c: mux: demux-pinctrl: check initial mux selection, too

[Greg Kroah-Hartman]

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

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

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit ca89f73394daf92779ddaa37b42956f4953f3941 ]

When misconfigured, the initial setup of the current mux channel can
fail, too. It must be checked as well.

Fixes: 50a5ba876908 ("i2c: mux: demux-pinctrl: add driver")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/muxes/i2c-demux-pinctrl.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/i2c/muxes/i2c-demux-pinctrl.c b/drivers/i2c/muxes/i2c-demux-pinctrl.c
index 7e2686b606c04..cec7f3447e193 100644
--- a/drivers/i2c/muxes/i2c-demux-pinctrl.c
+++ b/drivers/i2c/muxes/i2c-demux-pinctrl.c
@@ -261,7 +261,9 @@ static int i2c_demux_pinctrl_probe(struct platform_device *pdev)
 	pm_runtime_no_callbacks(&pdev->dev);
 
 	/* switch to first parent as active master */
-	i2c_demux_activate_master(priv, 0);
+	err = i2c_demux_activate_master(priv, 0);
+	if (err)
+		goto err_rollback;
 
 	err = device_create_file(&pdev->dev, &dev_attr_available_masters);
 	if (err)
-- 
2.39.5

[PATCH 6.12 045/122] i2c: rcar: fix NACK handling when being a target

[Greg Kroah-Hartman]

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

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

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit 093f70c134f70e4632b295240f07d2b50b74e247 ]

When this controller is a target, the NACK handling had two issues.
First, the return value from the backend was not checked on the initial
WRITE_REQUESTED. So, the driver missed to send a NACK in this case.
Also, the NACK always arrives one byte late on the bus, even in the
WRITE_RECEIVED case. This seems to be a HW issue. We should then not
rely on the backend to correctly NACK the superfluous byte as well. Fix
both issues by introducing a flag which gets set whenever the backend
requests a NACK and keep sending it until we get a STOP condition.

Fixes: de20d1857dd6 ("i2c: rcar: add slave support")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/busses/i2c-rcar.c | 20 +++++++++++++++-----
 1 file changed, 15 insertions(+), 5 deletions(-)

diff --git a/drivers/i2c/busses/i2c-rcar.c b/drivers/i2c/busses/i2c-rcar.c
index 9267df38c2d0a..3991224148214 100644
--- a/drivers/i2c/busses/i2c-rcar.c
+++ b/drivers/i2c/busses/i2c-rcar.c
@@ -130,6 +130,8 @@
 #define ID_P_PM_BLOCKED		BIT(31)
 #define ID_P_MASK		GENMASK(31, 27)
 
+#define ID_SLAVE_NACK		BIT(0)
+
 enum rcar_i2c_type {
 	I2C_RCAR_GEN1,
 	I2C_RCAR_GEN2,
@@ -166,6 +168,7 @@ struct rcar_i2c_priv {
 	int irq;
 
 	struct i2c_client *host_notify_client;
+	u8 slave_flags;
 };
 
 #define rcar_i2c_priv_to_dev(p)		((p)->adap.dev.parent)
@@ -655,6 +658,7 @@ static bool rcar_i2c_slave_irq(struct rcar_i2c_priv *priv)
 {
 	u32 ssr_raw, ssr_filtered;
 	u8 value;
+	int ret;
 
 	ssr_raw = rcar_i2c_read(priv, ICSSR) & 0xff;
 	ssr_filtered = ssr_raw & rcar_i2c_read(priv, ICSIER);
@@ -670,7 +674,10 @@ static bool rcar_i2c_slave_irq(struct rcar_i2c_priv *priv)
 			rcar_i2c_write(priv, ICRXTX, value);
 			rcar_i2c_write(priv, ICSIER, SDE | SSR | SAR);
 		} else {
-			i2c_slave_event(priv->slave, I2C_SLAVE_WRITE_REQUESTED, &value);
+			ret = i2c_slave_event(priv->slave, I2C_SLAVE_WRITE_REQUESTED, &value);
+			if (ret)
+				priv->slave_flags |= ID_SLAVE_NACK;
+
 			rcar_i2c_read(priv, ICRXTX);	/* dummy read */
 			rcar_i2c_write(priv, ICSIER, SDR | SSR | SAR);
 		}
@@ -683,18 +690,21 @@ static bool rcar_i2c_slave_irq(struct rcar_i2c_priv *priv)
 	if (ssr_filtered & SSR) {
 		i2c_slave_event(priv->slave, I2C_SLAVE_STOP, &value);
 		rcar_i2c_write(priv, ICSCR, SIE | SDBS); /* clear our NACK */
+		priv->slave_flags &= ~ID_SLAVE_NACK;
 		rcar_i2c_write(priv, ICSIER, SAR);
 		rcar_i2c_write(priv, ICSSR, ~SSR & 0xff);
 	}
 
 	/* master wants to write to us */
 	if (ssr_filtered & SDR) {
-		int ret;
-
 		value = rcar_i2c_read(priv, ICRXTX);
 		ret = i2c_slave_event(priv->slave, I2C_SLAVE_WRITE_RECEIVED, &value);
-		/* Send NACK in case of error */
-		rcar_i2c_write(priv, ICSCR, SIE | SDBS | (ret < 0 ? FNA : 0));
+		if (ret)
+			priv->slave_flags |= ID_SLAVE_NACK;
+
+		/* Send NACK in case of error, but it will come 1 byte late :( */
+		rcar_i2c_write(priv, ICSCR, SIE | SDBS |
+			       (priv->slave_flags & ID_SLAVE_NACK ? FNA : 0));
 		rcar_i2c_write(priv, ICSSR, ~SDR & 0xff);
 	}
 
-- 
2.39.5

[PATCH 6.12 046/122] i2c: testunit: on errors, repeat NACK until STOP

[Greg Kroah-Hartman]

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

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

From: Wolfram Sang <wsa+renesas@sang-engineering.com>

[ Upstream commit 6ad30f7890423341f4b79329af1f9b9bb3cdec03 ]

This backend requests a NACK from the controller driver when it detects
an error. If that request gets ignored from some reason, subsequent
accesses will wrongly be handled OK. To fix this, an error now changes
the state machine, so the backend will report NACK until a STOP
condition has been detected. This make the driver more robust against
controllers which will sadly apply the NACK not to the current byte but
the next one.

Fixes: a8335c64c5f0 ("i2c: add slave testunit driver")
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/i2c/i2c-slave-testunit.c | 19 +++++++++++++++----
 1 file changed, 15 insertions(+), 4 deletions(-)

diff --git a/drivers/i2c/i2c-slave-testunit.c b/drivers/i2c/i2c-slave-testunit.c
index 9fe3150378e86..7ae0c7902f670 100644
--- a/drivers/i2c/i2c-slave-testunit.c
+++ b/drivers/i2c/i2c-slave-testunit.c
@@ -38,6 +38,7 @@ enum testunit_regs {
 
 enum testunit_flags {
 	TU_FLAG_IN_PROCESS,
+	TU_FLAG_NACK,
 };
 
 struct testunit_data {
@@ -90,8 +91,10 @@ static int i2c_slave_testunit_slave_cb(struct i2c_client *client,
 
 	switch (event) {
 	case I2C_SLAVE_WRITE_REQUESTED:
-		if (test_bit(TU_FLAG_IN_PROCESS, &tu->flags))
-			return -EBUSY;
+		if (test_bit(TU_FLAG_IN_PROCESS | TU_FLAG_NACK, &tu->flags)) {
+			ret = -EBUSY;
+			break;
+		}
 
 		memset(tu->regs, 0, TU_NUM_REGS);
 		tu->reg_idx = 0;
@@ -99,8 +102,10 @@ static int i2c_slave_testunit_slave_cb(struct i2c_client *client,
 		break;
 
 	case I2C_SLAVE_WRITE_RECEIVED:
-		if (test_bit(TU_FLAG_IN_PROCESS, &tu->flags))
-			return -EBUSY;
+		if (test_bit(TU_FLAG_IN_PROCESS | TU_FLAG_NACK, &tu->flags)) {
+			ret = -EBUSY;
+			break;
+		}
 
 		if (tu->reg_idx < TU_NUM_REGS)
 			tu->regs[tu->reg_idx] = *val;
@@ -129,6 +134,8 @@ static int i2c_slave_testunit_slave_cb(struct i2c_client *client,
 		 * here because we still need them in the workqueue!
 		 */
 		tu->reg_idx = 0;
+
+		clear_bit(TU_FLAG_NACK, &tu->flags);
 		break;
 
 	case I2C_SLAVE_READ_PROCESSED:
@@ -151,6 +158,10 @@ static int i2c_slave_testunit_slave_cb(struct i2c_client *client,
 		break;
 	}
 
+	/* If an error occurred somewhen, we NACK everything until next STOP */
+	if (ret)
+		set_bit(TU_FLAG_NACK, &tu->flags);
+
 	return ret;
 }
 
-- 
2.39.5

[PATCH 6.12 047/122] hwmon: (ltc2991) Fix mixed signed/unsigned in DIV_ROUND_CLOSEST

[Greg Kroah-Hartman]

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

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

From: David Lechner <dlechner@baylibre.com>

[ Upstream commit e9b24deb84863c5a77dda5be57b6cb5bf4127b85 ]

Fix use of DIV_ROUND_CLOSEST where a possibly negative value is divided
by an unsigned type by casting the unsigned type to the signed type of
the same size (st->r_sense_uohm[channel] has type of u32).

The docs on the DIV_ROUND_CLOSEST macro explain that dividing a negative
value by an unsigned type is undefined behavior. The actual behavior is
that it converts both values to unsigned before doing the division, for
example:

    int ret = DIV_ROUND_CLOSEST(-100, 3U);

results in ret == 1431655732 instead of -33.

Fixes: 2b9ea4262ae9 ("hwmon: Add driver for ltc2991")
Signed-off-by: David Lechner <dlechner@baylibre.com>
Link: https://lore.kernel.org/r/20250115-hwmon-ltc2991-fix-div-round-closest-v1-1-b4929667e457@baylibre.com
Signed-off-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/hwmon/ltc2991.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/hwmon/ltc2991.c b/drivers/hwmon/ltc2991.c
index 7ca139e4b6aff..6d5d4cb846daf 100644
--- a/drivers/hwmon/ltc2991.c
+++ b/drivers/hwmon/ltc2991.c
@@ -125,7 +125,7 @@ static int ltc2991_get_curr(struct ltc2991_state *st, u32 reg, int channel,
 
 	/* Vx-Vy, 19.075uV/LSB */
 	*val = DIV_ROUND_CLOSEST(sign_extend32(reg_val, 14) * 19075,
-				 st->r_sense_uohm[channel]);
+				 (s32)st->r_sense_uohm[channel]);
 
 	return 0;
 }
-- 
2.39.5

[PATCH 6.12 048/122] smb: client: fix double free of TCP_Server_Info::hostname

[Greg Kroah-Hartman]

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

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

From: Paulo Alcantara <pc@manguebit.com>

[ Upstream commit fa2f9906a7b333ba757a7dbae0713d8a5396186e ]

When shutting down the server in cifs_put_tcp_session(), cifsd thread
might be reconnecting to multiple DFS targets before it realizes it
should exit the loop, so @server->hostname can't be freed as long as
cifsd thread isn't done.  Otherwise the following can happen:

  RIP: 0010:__slab_free+0x223/0x3c0
  Code: 5e 41 5f c3 cc cc cc cc 4c 89 de 4c 89 cf 44 89 44 24 08 4c 89
  1c 24 e8 fb cf 8e 00 44 8b 44 24 08 4c 8b 1c 24 e9 5f fe ff ff <0f>
  0b 41 f7 45 08 00 0d 21 00 0f 85 2d ff ff ff e9 1f ff ff ff 80
  RSP: 0018:ffffb26180dbfd08 EFLAGS: 00010246
  RAX: ffff8ea34728e510 RBX: ffff8ea34728e500 RCX: 0000000000800068
  RDX: 0000000000800068 RSI: 0000000000000000 RDI: ffff8ea340042400
  RBP: ffffe112041ca380 R08: 0000000000000001 R09: 0000000000000000
  R10: 6170732e31303000 R11: 70726f632e786563 R12: ffff8ea34728e500
  R13: ffff8ea340042400 R14: ffff8ea34728e500 R15: 0000000000800068
  FS: 0000000000000000(0000) GS:ffff8ea66fd80000(0000)
  000000
  CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
  CR2: 00007ffc25376080 CR3: 000000012a2ba001 CR4:
  PKRU: 55555554
  Call Trace:
   <TASK>
   ? show_trace_log_lvl+0x1c4/0x2df
   ? show_trace_log_lvl+0x1c4/0x2df
   ? __reconnect_target_unlocked+0x3e/0x160 [cifs]
   ? __die_body.cold+0x8/0xd
   ? die+0x2b/0x50
   ? do_trap+0xce/0x120
   ? __slab_free+0x223/0x3c0
   ? do_error_trap+0x65/0x80
   ? __slab_free+0x223/0x3c0
   ? exc_invalid_op+0x4e/0x70
   ? __slab_free+0x223/0x3c0
   ? asm_exc_invalid_op+0x16/0x20
   ? __slab_free+0x223/0x3c0
   ? extract_hostname+0x5c/0xa0 [cifs]
   ? extract_hostname+0x5c/0xa0 [cifs]
   ? __kmalloc+0x4b/0x140
   __reconnect_target_unlocked+0x3e/0x160 [cifs]
   reconnect_dfs_server+0x145/0x430 [cifs]
   cifs_handle_standard+0x1ad/0x1d0 [cifs]
   cifs_demultiplex_thread+0x592/0x730 [cifs]
   ? __pfx_cifs_demultiplex_thread+0x10/0x10 [cifs]
   kthread+0xdd/0x100
   ? __pfx_kthread+0x10/0x10
   ret_from_fork+0x29/0x50
   </TASK>

Fixes: 7be3248f3139 ("cifs: To match file servers, make sure the server hostname matches")
Reported-by: Jay Shin <jaeshin@redhat.com>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/smb/client/connect.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/fs/smb/client/connect.c b/fs/smb/client/connect.c
index fe40152b915d8..fb51cdf552061 100644
--- a/fs/smb/client/connect.c
+++ b/fs/smb/client/connect.c
@@ -1044,6 +1044,7 @@ clean_demultiplex_info(struct TCP_Server_Info *server)
 	/* Release netns reference for this server. */
 	put_net(cifs_net_ns(server));
 	kfree(server->leaf_fullpath);
+	kfree(server->hostname);
 	kfree(server);
 
 	length = atomic_dec_return(&tcpSesAllocCount);
@@ -1670,8 +1671,6 @@ cifs_put_tcp_session(struct TCP_Server_Info *server, int from_reconnect)
 	kfree_sensitive(server->session_key.response);
 	server->session_key.response = NULL;
 	server->session_key.len = 0;
-	kfree(server->hostname);
-	server->hostname = NULL;
 
 	task = xchg(&server->tsk, NULL);
 	if (task)
-- 
2.39.5

[PATCH 6.12 049/122] mac802154: check local interfaces before deleting sdata list

[Greg Kroah-Hartman]

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

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

From: Lizhi Xu <lizhi.xu@windriver.com>

[ Upstream commit eb09fbeb48709fe66c0d708aed81e910a577a30a ]

syzkaller reported a corrupted list in ieee802154_if_remove. [1]

Remove an IEEE 802.15.4 network interface after unregister an IEEE 802.15.4
hardware device from the system.

CPU0					CPU1
====					====
genl_family_rcv_msg_doit		ieee802154_unregister_hw
ieee802154_del_iface			ieee802154_remove_interfaces
rdev_del_virtual_intf_deprecated	list_del(&sdata->list)
ieee802154_if_remove
list_del_rcu

The net device has been unregistered, since the rcu grace period,
unregistration must be run before ieee802154_if_remove.

To avoid this issue, add a check for local->interfaces before deleting
sdata list.

[1]
kernel BUG at lib/list_debug.c:58!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 0 UID: 0 PID: 6277 Comm: syz-executor157 Not tainted 6.12.0-rc6-syzkaller-00005-g557329bcecc2 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:__list_del_entry_valid_or_report+0xf4/0x140 lib/list_debug.c:56
Code: e8 a1 7e 00 07 90 0f 0b 48 c7 c7 e0 37 60 8c 4c 89 fe e8 8f 7e 00 07 90 0f 0b 48 c7 c7 40 38 60 8c 4c 89 fe e8 7d 7e 00 07 90 <0f> 0b 48 c7 c7 a0 38 60 8c 4c 89 fe e8 6b 7e 00 07 90 0f 0b 48 c7
RSP: 0018:ffffc9000490f3d0 EFLAGS: 00010246
RAX: 000000000000004e RBX: dead000000000122 RCX: d211eee56bb28d00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffff88805b278dd8 R08: ffffffff8174a12c R09: 1ffffffff2852f0d
R10: dffffc0000000000 R11: fffffbfff2852f0e R12: dffffc0000000000
R13: dffffc0000000000 R14: dead000000000100 R15: ffff88805b278cc0
FS:  0000555572f94380(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000056262e4a3000 CR3: 0000000078496000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 __list_del_entry_valid include/linux/list.h:124 [inline]
 __list_del_entry include/linux/list.h:215 [inline]
 list_del_rcu include/linux/rculist.h:157 [inline]
 ieee802154_if_remove+0x86/0x1e0 net/mac802154/iface.c:687
 rdev_del_virtual_intf_deprecated net/ieee802154/rdev-ops.h:24 [inline]
 ieee802154_del_iface+0x2c0/0x5c0 net/ieee802154/nl-phy.c:323
 genl_family_rcv_msg_doit net/netlink/genetlink.c:1115 [inline]
 genl_family_rcv_msg net/netlink/genetlink.c:1195 [inline]
 genl_rcv_msg+0xb14/0xec0 net/netlink/genetlink.c:1210
 netlink_rcv_skb+0x1e3/0x430 net/netlink/af_netlink.c:2551
 genl_rcv+0x28/0x40 net/netlink/genetlink.c:1219
 netlink_unicast_kernel net/netlink/af_netlink.c:1331 [inline]
 netlink_unicast+0x7f6/0x990 net/netlink/af_netlink.c:1357
 netlink_sendmsg+0x8e4/0xcb0 net/netlink/af_netlink.c:1901
 sock_sendmsg_nosec net/socket.c:729 [inline]
 __sock_sendmsg+0x221/0x270 net/socket.c:744
 ____sys_sendmsg+0x52a/0x7e0 net/socket.c:2607
 ___sys_sendmsg net/socket.c:2661 [inline]
 __sys_sendmsg+0x292/0x380 net/socket.c:2690
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f

Reported-and-tested-by: syzbot+985f827280dc3a6e7e92@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=985f827280dc3a6e7e92
Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com>
Reviewed-by: Miquel Raynal <miquel.raynal@bootlin.com>
Link: https://lore.kernel.org/20241113095129.1457225-1-lizhi.xu@windriver.com
Signed-off-by: Stefan Schmidt <stefan@datenfreihafen.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 net/mac802154/iface.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/net/mac802154/iface.c b/net/mac802154/iface.c
index c0e2da5072bea..9e4631fade90c 100644
--- a/net/mac802154/iface.c
+++ b/net/mac802154/iface.c
@@ -684,6 +684,10 @@ void ieee802154_if_remove(struct ieee802154_sub_if_data *sdata)
 	ASSERT_RTNL();
 
 	mutex_lock(&sdata->local->iflist_mtx);
+	if (list_empty(&sdata->local->interfaces)) {
+		mutex_unlock(&sdata->local->iflist_mtx);
+		return;
+	}
 	list_del_rcu(&sdata->list);
 	mutex_unlock(&sdata->local->iflist_mtx);
 
-- 
2.39.5

[PATCH 6.12 050/122] hfs: Sanity check the root record

[Greg Kroah-Hartman]

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

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

From: Leo Stone <leocstone@gmail.com>

[ Upstream commit b905bafdea21a75d75a96855edd9e0b6051eee30 ]

In the syzbot reproducer, the hfs_cat_rec for the root dir has type
HFS_CDR_FIL after being read with hfs_bnode_read() in hfs_super_fill().
This indicates it should be used as an hfs_cat_file, which is 102 bytes.
Only the first 70 bytes of that struct are initialized, however,
because the entrylength passed into hfs_bnode_read() is still the length of
a directory record. This causes uninitialized values to be used later on,
when the hfs_cat_rec union is treated as the larger hfs_cat_file struct.

Add a check to make sure the retrieved record has the correct type
for the root directory (HFS_CDR_DIR), and make sure we load the correct
number of bytes for a directory record.

Reported-by: syzbot+2db3c7526ba68f4ea776@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=2db3c7526ba68f4ea776
Tested-by: syzbot+2db3c7526ba68f4ea776@syzkaller.appspotmail.com
Tested-by: Leo Stone <leocstone@gmail.com>
Signed-off-by: Leo Stone <leocstone@gmail.com>
Link: https://lore.kernel.org/r/20241201051420.77858-1-leocstone@gmail.com
Reviewed-by: Jan Kara <jack@suse.cz>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/hfs/super.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/fs/hfs/super.c b/fs/hfs/super.c
index eeac99765f0d6..cf13b5cc10848 100644
--- a/fs/hfs/super.c
+++ b/fs/hfs/super.c
@@ -419,11 +419,13 @@ static int hfs_fill_super(struct super_block *sb, void *data, int silent)
 		goto bail_no_root;
 	res = hfs_cat_find_brec(sb, HFS_ROOT_CNID, &fd);
 	if (!res) {
-		if (fd.entrylength > sizeof(rec) || fd.entrylength < 0) {
+		if (fd.entrylength != sizeof(rec.dir)) {
 			res =  -EIO;
 			goto bail_hfs_find;
 		}
 		hfs_bnode_read(fd.bnode, &rec, fd.entryoffset, fd.entrylength);
+		if (rec.type != HFS_CDR_DIR)
+			res = -EIO;
 	}
 	if (res)
 		goto bail_hfs_find;
-- 
2.39.5

[PATCH 6.12 051/122] fs/qnx6: Fix building with GCC 15

[Greg Kroah-Hartman]

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

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

From: Brahmajit Das <brahmajit.xyz@gmail.com>

[ Upstream commit 989e0cdc0f18a594b25cabc60426d29659aeaf58 ]

qnx6_checkroot() had been using weirdly spelled initializer - it needed
to initialize 3-element arrays of char and it used NUL-padded
3-character string literals (i.e. 4-element initializers, with
completely pointless zeroes at the end).

That had been spotted by gcc-15[*]; prior to that gcc quietly dropped
the 4th element of initializers.

However, none of that had been needed in the first place - all this
array is used for is checking that the first directory entry in root
directory is "." and the second - "..".  The check had been expressed as
a loop, using that match_root[] array.  Since there is no chance that we
ever want to extend that list of entries, the entire thing is much too
fancy for its own good; what we need is just a couple of explicit
memcmp() and that's it.

[*]: fs/qnx6/inode.c: In function ‘qnx6_checkroot’:
fs/qnx6/inode.c:182:41: error: initializer-string for array of ‘char’ is too long [-Werror=unterminated-string-initialization]
  182 |         static char match_root[2][3] = {".\0\0", "..\0"};
      |                                         ^~~~~~~
fs/qnx6/inode.c:182:50: error: initializer-string for array of ‘char’ is too long [-Werror=unterminated-string-initialization]
  182 |         static char match_root[2][3] = {".\0\0", "..\0"};
      |                                                  ^~~~~~

Signed-off-by: Brahmajit Das <brahmajit.xyz@gmail.com>
Link: https://lore.kernel.org/r/20241004195132.1393968-1-brahmajit.xyz@gmail.com
Acked-by: Al Viro <viro@zeniv.linux.org.uk>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/qnx6/inode.c | 11 ++++-------
 1 file changed, 4 insertions(+), 7 deletions(-)

diff --git a/fs/qnx6/inode.c b/fs/qnx6/inode.c
index 85925ec0051a9..3310d1ad4d0e9 100644
--- a/fs/qnx6/inode.c
+++ b/fs/qnx6/inode.c
@@ -179,8 +179,7 @@ static int qnx6_statfs(struct dentry *dentry, struct kstatfs *buf)
  */
 static const char *qnx6_checkroot(struct super_block *s)
 {
-	static char match_root[2][3] = {".\0\0", "..\0"};
-	int i, error = 0;
+	int error = 0;
 	struct qnx6_dir_entry *dir_entry;
 	struct inode *root = d_inode(s->s_root);
 	struct address_space *mapping = root->i_mapping;
@@ -189,11 +188,9 @@ static const char *qnx6_checkroot(struct super_block *s)
 	if (IS_ERR(folio))
 		return "error reading root directory";
 	dir_entry = kmap_local_folio(folio, 0);
-	for (i = 0; i < 2; i++) {
-		/* maximum 3 bytes - due to match_root limitation */
-		if (strncmp(dir_entry[i].de_fname, match_root[i], 3))
-			error = 1;
-	}
+	if (memcmp(dir_entry[0].de_fname, ".", 2) ||
+	    memcmp(dir_entry[1].de_fname, "..", 3))
+		error = 1;
 	folio_release_kmap(folio, dir_entry);
 	if (error)
 		return "error reading root directory.";
-- 
2.39.5

[PATCH 6.12 052/122] fs: fix missing declaration of init_files

[Greg Kroah-Hartman]

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

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

From: Zhang Kunbo <zhangkunbo@huawei.com>

[ Upstream commit 2b2fc0be98a828cf33a88a28e9745e8599fb05cf ]

fs/file.c should include include/linux/init_task.h  for
 declaration of init_files. This fixes the sparse warning:

fs/file.c:501:21: warning: symbol 'init_files' was not declared. Should it be static?

Signed-off-by: Zhang Kunbo <zhangkunbo@huawei.com>
Link: https://lore.kernel.org/r/20241217071836.2634868-1-zhangkunbo@huawei.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/file.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/fs/file.c b/fs/file.c
index eb093e7369720..4cb952541dd03 100644
--- a/fs/file.c
+++ b/fs/file.c
@@ -21,6 +21,7 @@
 #include <linux/rcupdate.h>
 #include <linux/close_range.h>
 #include <net/sock.h>
+#include <linux/init_task.h>
 
 #include "internal.h"
 
-- 
2.39.5

[PATCH 6.12 053/122] kheaders: Ignore silly-rename files

[Greg Kroah-Hartman]

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

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

From: David Howells <dhowells@redhat.com>

[ Upstream commit 973b710b8821c3401ad7a25360c89e94b26884ac ]

Tell tar to ignore silly-rename files (".__afs*" and ".nfs*") when building
the header archive.  These occur when a file that is open is unlinked
locally, but hasn't yet been closed.  Such files are visible to the user
via the getdents() syscall and so programs may want to do things with them.

During the kernel build, such files may be made during the processing of
header files and the cleanup may get deferred by fput() which may result in
tar seeing these files when it reads the directory, but they may have
disappeared by the time it tries to open them, causing tar to fail with an
error.  Further, we don't want to include them in the tarball if they still
exist.

With CONFIG_HEADERS_INSTALL=y, something like the following may be seen:

   find: './kernel/.tmp_cpio_dir/include/dt-bindings/reset/.__afs2080': No such file or directory
   tar: ./include/linux/greybus/.__afs3C95: File removed before we read it

The find warning doesn't seem to cause a problem.

Fix this by telling tar when called from in gen_kheaders.sh to exclude such
files.  This only affects afs and nfs; cifs uses the Windows Hidden
attribute to prevent the file from being seen.

Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241213135013.2964079-2-dhowells@redhat.com
cc: Masahiro Yamada <masahiroy@kernel.org>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
cc: linux-nfs@vger.kernel.org
cc: linux-kernel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/gen_kheaders.sh | 1 +
 1 file changed, 1 insertion(+)

diff --git a/kernel/gen_kheaders.sh b/kernel/gen_kheaders.sh
index 383fd43ac6122..7e1340da5acae 100755
--- a/kernel/gen_kheaders.sh
+++ b/kernel/gen_kheaders.sh
@@ -89,6 +89,7 @@ find $cpio_dir -type f -print0 |
 
 # Create archive and try to normalize metadata for reproducibility.
 tar "${KBUILD_BUILD_TIMESTAMP:+--mtime=$KBUILD_BUILD_TIMESTAMP}" \
+    --exclude=".__afs*" --exclude=".nfs*" \
     --owner=0 --group=0 --sort=name --numeric-owner --mode=u=rw,go=r,a+X \
     -I $XZ -cf $tarfile -C $cpio_dir/ . > /dev/null
 
-- 
2.39.5

[PATCH 6.12 054/122] netfs: Fix non-contiguous donation between completed reads

[Greg Kroah-Hartman]

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

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

From: David Howells <dhowells@redhat.com>

[ Upstream commit c8b90d40d5bba8e6fba457b8a7c10d3c0d467e37 ]

When a read subrequest finishes, if it doesn't have sufficient coverage to
complete the folio(s) covering either side of it, it will donate the excess
coverage to the adjacent subrequests on either side, offloading
responsibility for unlocking the folio(s) covered to them.

Now, preference is given to donating down to a lower file offset over
donating up because that check is done first - but there's no check that
the lower subreq is actually contiguous, and so we can end up donating
incorrectly.

The scenario seen[1] is that an 8MiB readahead request spanning four 2MiB
folios is split into eight 1MiB subreqs (numbered 1 through 8).  These
terminate in the order 1,6,2,5,3,7,4,8.  What happens is:

	- 1 donates to 2
	- 6 donates to 5
	- 2 completes, unlocking the first folio (with 1).
	- 5 completes, unlocking the third folio (with 6).
	- 3 donates to 4
	- 7 donates to 4 incorrectly
	- 4 completes, unlocking the second folio (with 3), but can't use
	  the excess from 7.
	- 8 donates to 4, also incorrectly.

Fix this by preventing downward donation if the subreqs are not contiguous
(in the example above, 7 donates to 4 across the gap left by 5 and 6).

Reported-by: Shyam Prasad N <nspmangalore@gmail.com>
Closes: https://lore.kernel.org/r/CANT5p=qBwjBm-D8soFVVtswGEfmMtQXVW83=TNfUtvyHeFQZBA@mail.gmail.com/
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/526707.1733224486@warthog.procyon.org.uk/ [1]
Link: https://lore.kernel.org/r/20241213135013.2964079-3-dhowells@redhat.com
cc: Steve French <sfrench@samba.org>
cc: Paulo Alcantara <pc@manguebit.com>
cc: Jeff Layton <jlayton@kernel.org>
cc: linux-cifs@vger.kernel.org
cc: netfs@lists.linux.dev
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/netfs/read_collect.c | 9 +++++----
 1 file changed, 5 insertions(+), 4 deletions(-)

diff --git a/fs/netfs/read_collect.c b/fs/netfs/read_collect.c
index e70eb4ea21c03..a44132c986538 100644
--- a/fs/netfs/read_collect.c
+++ b/fs/netfs/read_collect.c
@@ -249,16 +249,17 @@ static bool netfs_consume_read_data(struct netfs_io_subrequest *subreq, bool was
 
 	/* Deal with the trickiest case: that this subreq is in the middle of a
 	 * folio, not touching either edge, but finishes first.  In such a
-	 * case, we donate to the previous subreq, if there is one, so that the
-	 * donation is only handled when that completes - and remove this
-	 * subreq from the list.
+	 * case, we donate to the previous subreq, if there is one and if it is
+	 * contiguous, so that the donation is only handled when that completes
+	 * - and remove this subreq from the list.
 	 *
 	 * If the previous subreq finished first, we will have acquired their
 	 * donation and should be able to unlock folios and/or donate nextwards.
 	 */
 	if (!subreq->consumed &&
 	    !prev_donated &&
-	    !list_is_first(&subreq->rreq_link, &rreq->subrequests)) {
+	    !list_is_first(&subreq->rreq_link, &rreq->subrequests) &&
+	    subreq->start == prev->start + prev->len) {
 		prev = list_prev_entry(subreq, rreq_link);
 		WRITE_ONCE(prev->next_donated, prev->next_donated + subreq->len);
 		subreq->start += subreq->len;
-- 
2.39.5

[PATCH 6.12 055/122] cachefiles: Parse the "secctx" immediately

[Greg Kroah-Hartman]

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

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

From: Max Kellermann <max.kellermann@ionos.com>

[ Upstream commit e5a8b6446c0d370716f193771ccacf3260a57534 ]

Instead of storing an opaque string, call security_secctx_to_secid()
right in the "secctx" command handler and store only the numeric
"secid".  This eliminates an unnecessary string allocation and allows
the daemon to receive errors when writing the "secctx" command instead
of postponing the error to the "bind" command handler.  For example,
if the kernel was built without `CONFIG_SECURITY`, "bind" will return
`EOPNOTSUPP`, but the daemon doesn't know why.  With this patch, the
"secctx" will instead return `EOPNOTSUPP` which is the right context
for this error.

This patch adds a boolean flag `have_secid` because I'm not sure if we
can safely assume that zero is the special secid value for "not set".
This appears to be true for SELinux, Smack and AppArmor, but since
this attribute is not documented, I'm unable to derive a stable
guarantee for that.

Signed-off-by: Max Kellermann <max.kellermann@ionos.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241209141554.638708-1-max.kellermann@ionos.com/
Link: https://lore.kernel.org/r/20241213135013.2964079-6-dhowells@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/cachefiles/daemon.c   | 14 +++++++-------
 fs/cachefiles/internal.h |  3 ++-
 fs/cachefiles/security.c |  6 +++---
 3 files changed, 12 insertions(+), 11 deletions(-)

diff --git a/fs/cachefiles/daemon.c b/fs/cachefiles/daemon.c
index 89b11336a8369..1806bff8e59bc 100644
--- a/fs/cachefiles/daemon.c
+++ b/fs/cachefiles/daemon.c
@@ -15,6 +15,7 @@
 #include <linux/namei.h>
 #include <linux/poll.h>
 #include <linux/mount.h>
+#include <linux/security.h>
 #include <linux/statfs.h>
 #include <linux/ctype.h>
 #include <linux/string.h>
@@ -576,7 +577,7 @@ static int cachefiles_daemon_dir(struct cachefiles_cache *cache, char *args)
  */
 static int cachefiles_daemon_secctx(struct cachefiles_cache *cache, char *args)
 {
-	char *secctx;
+	int err;
 
 	_enter(",%s", args);
 
@@ -585,16 +586,16 @@ static int cachefiles_daemon_secctx(struct cachefiles_cache *cache, char *args)
 		return -EINVAL;
 	}
 
-	if (cache->secctx) {
+	if (cache->have_secid) {
 		pr_err("Second security context specified\n");
 		return -EINVAL;
 	}
 
-	secctx = kstrdup(args, GFP_KERNEL);
-	if (!secctx)
-		return -ENOMEM;
+	err = security_secctx_to_secid(args, strlen(args), &cache->secid);
+	if (err)
+		return err;
 
-	cache->secctx = secctx;
+	cache->have_secid = true;
 	return 0;
 }
 
@@ -820,7 +821,6 @@ static void cachefiles_daemon_unbind(struct cachefiles_cache *cache)
 	put_cred(cache->cache_cred);
 
 	kfree(cache->rootdirname);
-	kfree(cache->secctx);
 	kfree(cache->tag);
 
 	_leave("");
diff --git a/fs/cachefiles/internal.h b/fs/cachefiles/internal.h
index 7b99bd98de75b..38c236e38cef8 100644
--- a/fs/cachefiles/internal.h
+++ b/fs/cachefiles/internal.h
@@ -122,7 +122,6 @@ struct cachefiles_cache {
 #define CACHEFILES_STATE_CHANGED	3	/* T if state changed (poll trigger) */
 #define CACHEFILES_ONDEMAND_MODE	4	/* T if in on-demand read mode */
 	char				*rootdirname;	/* name of cache root directory */
-	char				*secctx;	/* LSM security context */
 	char				*tag;		/* cache binding tag */
 	refcount_t			unbind_pincount;/* refcount to do daemon unbind */
 	struct xarray			reqs;		/* xarray of pending on-demand requests */
@@ -130,6 +129,8 @@ struct cachefiles_cache {
 	struct xarray			ondemand_ids;	/* xarray for ondemand_id allocation */
 	u32				ondemand_id_next;
 	u32				msg_id_next;
+	u32				secid;		/* LSM security id */
+	bool				have_secid;	/* whether "secid" was set */
 };
 
 static inline bool cachefiles_in_ondemand_mode(struct cachefiles_cache *cache)
diff --git a/fs/cachefiles/security.c b/fs/cachefiles/security.c
index fe777164f1d89..fc6611886b3b5 100644
--- a/fs/cachefiles/security.c
+++ b/fs/cachefiles/security.c
@@ -18,7 +18,7 @@ int cachefiles_get_security_ID(struct cachefiles_cache *cache)
 	struct cred *new;
 	int ret;
 
-	_enter("{%s}", cache->secctx);
+	_enter("{%u}", cache->have_secid ? cache->secid : 0);
 
 	new = prepare_kernel_cred(current);
 	if (!new) {
@@ -26,8 +26,8 @@ int cachefiles_get_security_ID(struct cachefiles_cache *cache)
 		goto error;
 	}
 
-	if (cache->secctx) {
-		ret = set_security_override_from_ctx(new, cache->secctx);
+	if (cache->have_secid) {
+		ret = set_security_override(new, cache->secid);
 		if (ret < 0) {
 			put_cred(new);
 			pr_err("Security denies permission to nominate security context: error %d\n",
-- 
2.39.5

[PATCH 6.12 056/122] scsi: ufs: core: Honor runtime/system PM levels if set by host controller drivers

[Greg Kroah-Hartman]

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

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

From: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>

[ Upstream commit bb9850704c043e48c86cc9df90ee102e8a338229 ]

Otherwise, the default levels will override the levels set by the host
controller drivers.

Signed-off-by: Manivannan Sadhasivam <manivannan.sadhasivam@linaro.org>
Link: https://lore.kernel.org/r/20241219-ufs-qcom-suspend-fix-v3-2-63c4b95a70b9@linaro.org
Reviewed-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/ufs/core/ufshcd.c | 9 ++++++---
 1 file changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/ufs/core/ufshcd.c b/drivers/ufs/core/ufshcd.c
index 05b936ad353be..6cc9e61cca07d 100644
--- a/drivers/ufs/core/ufshcd.c
+++ b/drivers/ufs/core/ufshcd.c
@@ -10589,14 +10589,17 @@ int ufshcd_init(struct ufs_hba *hba, void __iomem *mmio_base, unsigned int irq)
 	}
 
 	/*
-	 * Set the default power management level for runtime and system PM.
+	 * Set the default power management level for runtime and system PM if
+	 * not set by the host controller drivers.
 	 * Default power saving mode is to keep UFS link in Hibern8 state
 	 * and UFS device in sleep state.
 	 */
-	hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
+	if (!hba->rpm_lvl)
+		hba->rpm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
 						UFS_SLEEP_PWR_MODE,
 						UIC_LINK_HIBERN8_STATE);
-	hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
+	if (!hba->spm_lvl)
+		hba->spm_lvl = ufs_get_desired_pm_lvl_for_dev_link_state(
 						UFS_SLEEP_PWR_MODE,
 						UIC_LINK_HIBERN8_STATE);
 
-- 
2.39.5

[PATCH 6.12 057/122] gpio: virtuser: lock up configfs that an instantiated device depends on

[Greg Kroah-Hartman]

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

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

From: Koichiro Den <koichiro.den@canonical.com>

[ Upstream commit c7c434c1dba955005f5161dae73f09c0a922cfa7 ]

Once a virtuser device is instantiated and actively used, allowing rmdir
for its configfs serves no purpose and can be confusing. Userspace
interacts with the virtual consumer at arbitrary times, meaning it
depends on its existence.

Make the subsystem itself depend on the configfs entry for a virtuser
device while it is in active use.

Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Link: https://lore.kernel.org/r/20250103141829.430662-4-koichiro.den@canonical.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-virtuser.c | 47 ++++++++++++++++++++++++++++++------
 1 file changed, 40 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-virtuser.c b/drivers/gpio/gpio-virtuser.c
index d6244f0d3bc75..e89f299f21400 100644
--- a/drivers/gpio/gpio-virtuser.c
+++ b/drivers/gpio/gpio-virtuser.c
@@ -1546,6 +1546,30 @@ gpio_virtuser_device_deactivate(struct gpio_virtuser_device *dev)
 	dev->pdev = NULL;
 }
 
+static void
+gpio_virtuser_device_lockup_configfs(struct gpio_virtuser_device *dev, bool lock)
+{
+	struct configfs_subsystem *subsys = dev->group.cg_subsys;
+	struct gpio_virtuser_lookup_entry *entry;
+	struct gpio_virtuser_lookup *lookup;
+
+	/*
+	 * The device only needs to depend on leaf lookup entries. This is
+	 * sufficient to lock up all the configfs entries that the
+	 * instantiated, alive device depends on.
+	 */
+	list_for_each_entry(lookup, &dev->lookup_list, siblings) {
+		list_for_each_entry(entry, &lookup->entry_list, siblings) {
+			if (lock)
+				WARN_ON(configfs_depend_item_unlocked(
+						subsys, &entry->group.cg_item));
+			else
+				configfs_undepend_item_unlocked(
+						&entry->group.cg_item);
+		}
+	}
+}
+
 static ssize_t
 gpio_virtuser_device_config_live_store(struct config_item *item,
 				       const char *page, size_t count)
@@ -1558,15 +1582,24 @@ gpio_virtuser_device_config_live_store(struct config_item *item,
 	if (ret)
 		return ret;
 
-	guard(mutex)(&dev->lock);
+	if (live)
+		gpio_virtuser_device_lockup_configfs(dev, true);
 
-	if (live == gpio_virtuser_device_is_live(dev))
-		return -EPERM;
+	scoped_guard(mutex, &dev->lock) {
+		if (live == gpio_virtuser_device_is_live(dev))
+			ret = -EPERM;
+		else if (live)
+			ret = gpio_virtuser_device_activate(dev);
+		else
+			gpio_virtuser_device_deactivate(dev);
+	}
 
-	if (live)
-		ret = gpio_virtuser_device_activate(dev);
-	else
-		gpio_virtuser_device_deactivate(dev);
+	/*
+	 * Undepend is required only if device disablement (live == 0)
+	 * succeeds or if device enablement (live == 1) fails.
+	 */
+	if (live == !!ret)
+		gpio_virtuser_device_lockup_configfs(dev, false);
 
 	return ret ?: count;
 }
-- 
2.39.5

[PATCH 6.12 058/122] gpio: sim: lock up configfs that an instantiated device depends on

[Greg Kroah-Hartman]

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

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

From: Koichiro Den <koichiro.den@canonical.com>

[ Upstream commit 8bd76b3d3f3af7ac2898b6a27ad90c444fec418f ]

Once a sim device is instantiated and actively used, allowing rmdir for
its configfs serves no purpose and can be confusing. Effectively,
arbitrary users start depending on its existence.

Make the subsystem itself depend on the configfs entry for a sim device
while it is in active use.

Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Link: https://lore.kernel.org/r/20250103141829.430662-5-koichiro.den@canonical.com
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/gpio/gpio-sim.c | 48 +++++++++++++++++++++++++++++++++++------
 1 file changed, 41 insertions(+), 7 deletions(-)

diff --git a/drivers/gpio/gpio-sim.c b/drivers/gpio/gpio-sim.c
index dcca1d7f173e5..deedacdeb2395 100644
--- a/drivers/gpio/gpio-sim.c
+++ b/drivers/gpio/gpio-sim.c
@@ -1030,6 +1030,30 @@ static void gpio_sim_device_deactivate(struct gpio_sim_device *dev)
 	dev->pdev = NULL;
 }
 
+static void
+gpio_sim_device_lockup_configfs(struct gpio_sim_device *dev, bool lock)
+{
+	struct configfs_subsystem *subsys = dev->group.cg_subsys;
+	struct gpio_sim_bank *bank;
+	struct gpio_sim_line *line;
+
+	/*
+	 * The device only needs to depend on leaf line entries. This is
+	 * sufficient to lock up all the configfs entries that the
+	 * instantiated, alive device depends on.
+	 */
+	list_for_each_entry(bank, &dev->bank_list, siblings) {
+		list_for_each_entry(line, &bank->line_list, siblings) {
+			if (lock)
+				WARN_ON(configfs_depend_item_unlocked(
+						subsys, &line->group.cg_item));
+			else
+				configfs_undepend_item_unlocked(
+						&line->group.cg_item);
+		}
+	}
+}
+
 static ssize_t
 gpio_sim_device_config_live_store(struct config_item *item,
 				  const char *page, size_t count)
@@ -1042,14 +1066,24 @@ gpio_sim_device_config_live_store(struct config_item *item,
 	if (ret)
 		return ret;
 
-	guard(mutex)(&dev->lock);
+	if (live)
+		gpio_sim_device_lockup_configfs(dev, true);
 
-	if (live == gpio_sim_device_is_live(dev))
-		ret = -EPERM;
-	else if (live)
-		ret = gpio_sim_device_activate(dev);
-	else
-		gpio_sim_device_deactivate(dev);
+	scoped_guard(mutex, &dev->lock) {
+		if (live == gpio_sim_device_is_live(dev))
+			ret = -EPERM;
+		else if (live)
+			ret = gpio_sim_device_activate(dev);
+		else
+			gpio_sim_device_deactivate(dev);
+	}
+
+	/*
+	 * Undepend is required only if device disablement (live == 0)
+	 * succeeds or if device enablement (live == 1) fails.
+	 */
+	if (live == !!ret)
+		gpio_sim_device_lockup_configfs(dev, false);
 
 	return ret ?: count;
 }
-- 
2.39.5

[PATCH 6.12 059/122] selftests: tc-testing: reduce rshift value

[Greg Kroah-Hartman]

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

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

From: Jakub Kicinski <kuba@kernel.org>

[ Upstream commit e95274dfe86490ec2a5633035c24b2de6722841f ]

After previous change rshift >= 32 is no longer allowed.
Modify the test to use 31, the test doesn't seem to send
any traffic so the exact value shouldn't matter.

Reviewed-by: Eric Dumazet <edumazet@google.com>
Link: https://patch.msgid.link/20250103182458.1213486-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/tc-testing/tc-tests/filters/flow.json | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/tc-testing/tc-tests/filters/flow.json b/tools/testing/selftests/tc-testing/tc-tests/filters/flow.json
index 58189327f6444..383fbda07245c 100644
--- a/tools/testing/selftests/tc-testing/tc-tests/filters/flow.json
+++ b/tools/testing/selftests/tc-testing/tc-tests/filters/flow.json
@@ -78,10 +78,10 @@
         "setup": [
             "$TC qdisc add dev $DEV1 ingress"
         ],
-        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: handle 1 prio 1 protocol ip flow map key dst rshift 0xff",
+        "cmdUnderTest": "$TC filter add dev $DEV1 parent ffff: handle 1 prio 1 protocol ip flow map key dst rshift 0x1f",
         "expExitCode": "0",
         "verifyCmd": "$TC filter get dev $DEV1 parent ffff: handle 1 protocol ip prio 1 flow",
-        "matchPattern": "filter parent ffff: protocol ip pref 1 flow chain [0-9]+ handle 0x1 map keys dst rshift 255 baseclass",
+        "matchPattern": "filter parent ffff: protocol ip pref 1 flow chain [0-9]+ handle 0x1 map keys dst rshift 31 baseclass",
         "matchCount": "1",
         "teardown": [
             "$TC qdisc del dev $DEV1 ingress"
-- 
2.39.5

[PATCH 6.12 060/122] platform/x86/intel: power-domains: Add Clearwater Forest support

[Greg Kroah-Hartman]

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

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

From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

[ Upstream commit bee9a0838fd223823e5a6d85c055ab1691dc738e ]

Add Clearwater Forest support (INTEL_ATOM_DARKMONT_X) to tpmi_cpu_ids
to support domaid id mappings.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250103155255.1488139-1-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/intel/tpmi_power_domains.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/intel/tpmi_power_domains.c b/drivers/platform/x86/intel/tpmi_power_domains.c
index 0609a8320f7ec..12fb0943b5dc3 100644
--- a/drivers/platform/x86/intel/tpmi_power_domains.c
+++ b/drivers/platform/x86/intel/tpmi_power_domains.c
@@ -81,6 +81,7 @@ static const struct x86_cpu_id tpmi_cpu_ids[] = {
 	X86_MATCH_VFM(INTEL_GRANITERAPIDS_X,	NULL),
 	X86_MATCH_VFM(INTEL_ATOM_CRESTMONT_X,	NULL),
 	X86_MATCH_VFM(INTEL_ATOM_CRESTMONT,	NULL),
+	X86_MATCH_VFM(INTEL_ATOM_DARKMONT_X,	NULL),
 	X86_MATCH_VFM(INTEL_GRANITERAPIDS_D,	NULL),
 	X86_MATCH_VFM(INTEL_PANTHERCOVE_X,	NULL),
 	{}
-- 
2.39.5

[PATCH 6.12 061/122] platform/x86: ISST: Add Clearwater Forest to support list

[Greg Kroah-Hartman]

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

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

From: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>

[ Upstream commit cc1ff7bc1bb378e7c46992c977b605e97d908801 ]

Add Clearwater Forest (INTEL_ATOM_DARKMONT_X) to SST support list by
adding to isst_cpu_ids.

Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://lore.kernel.org/r/20250103155255.1488139-2-srinivas.pandruvada@linux.intel.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/platform/x86/intel/speed_select_if/isst_if_common.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
index 1e46e30dae966..dbcd3087aaa4b 100644
--- a/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
+++ b/drivers/platform/x86/intel/speed_select_if/isst_if_common.c
@@ -804,6 +804,7 @@ EXPORT_SYMBOL_GPL(isst_if_cdev_unregister);
 static const struct x86_cpu_id isst_cpu_ids[] = {
 	X86_MATCH_VFM(INTEL_ATOM_CRESTMONT,	SST_HPM_SUPPORTED),
 	X86_MATCH_VFM(INTEL_ATOM_CRESTMONT_X,	SST_HPM_SUPPORTED),
+	X86_MATCH_VFM(INTEL_ATOM_DARKMONT_X,	SST_HPM_SUPPORTED),
 	X86_MATCH_VFM(INTEL_EMERALDRAPIDS_X,	0),
 	X86_MATCH_VFM(INTEL_GRANITERAPIDS_D,	SST_HPM_SUPPORTED),
 	X86_MATCH_VFM(INTEL_GRANITERAPIDS_X,	SST_HPM_SUPPORTED),
-- 
2.39.5

[PATCH 6.12 062/122] ACPI: resource: acpi_dev_irq_override(): Check DMI match last

[Greg Kroah-Hartman]

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

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

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

[ Upstream commit cd4a7b2e6a2437a5502910c08128ea3bad55a80b ]

acpi_dev_irq_override() gets called approx. 30 times during boot (15 legacy
IRQs * 2 override_table entries). Of these 30 calls at max 1 will match
the non DMI checks done by acpi_dev_irq_override(). The dmi_check_system()
check is by far the most expensive check done by acpi_dev_irq_override(),
make this call the last check done by acpi_dev_irq_override() so that it
will be called at max 1 time instead of 30 times.

Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Mario Limonciello <mario.limonciello@amd.com>
Link: https://patch.msgid.link/20241228165253.42584-1-hdegoede@redhat.com
[ rjw: Subject edit ]
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/acpi/resource.c | 6 +++---
 1 file changed, 3 insertions(+), 3 deletions(-)

diff --git a/drivers/acpi/resource.c b/drivers/acpi/resource.c
index d27a3bf96f80d..90aaec923889c 100644
--- a/drivers/acpi/resource.c
+++ b/drivers/acpi/resource.c
@@ -689,11 +689,11 @@ static bool acpi_dev_irq_override(u32 gsi, u8 triggering, u8 polarity,
 	for (i = 0; i < ARRAY_SIZE(override_table); i++) {
 		const struct irq_override_cmp *entry = &override_table[i];
 
-		if (dmi_check_system(entry->system) &&
-		    entry->irq == gsi &&
+		if (entry->irq == gsi &&
 		    entry->triggering == triggering &&
 		    entry->polarity == polarity &&
-		    entry->shareable == shareable)
+		    entry->shareable == shareable &&
+		    dmi_check_system(entry->system))
 			return entry->override;
 	}
 
-- 
2.39.5

[PATCH 6.12 063/122] sched_ext: keep running prev when prev->scx.slice != 0

[Greg Kroah-Hartman]

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

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

From: Henry Huang <henry.hj@antgroup.com>

[ Upstream commit 30dd3b13f9de612ef7328ccffcf1a07d0d40ab51 ]

When %SCX_OPS_ENQ_LAST is set and prev->scx.slice != 0,
@prev will be dispacthed into the local DSQ in put_prev_task_scx().
However, pick_task_scx() is executed before put_prev_task_scx(),
so it will not pick @prev.
Set %SCX_RQ_BAL_KEEP in balance_one() to ensure that pick_task_scx()
can pick @prev.

Signed-off-by: Henry Huang <henry.hj@antgroup.com>
Acked-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/ext.c | 11 +++++++----
 1 file changed, 7 insertions(+), 4 deletions(-)

diff --git a/kernel/sched/ext.c b/kernel/sched/ext.c
index f928a67a07d29..4c4681cb9337b 100644
--- a/kernel/sched/ext.c
+++ b/kernel/sched/ext.c
@@ -2630,6 +2630,7 @@ static int balance_one(struct rq *rq, struct task_struct *prev)
 {
 	struct scx_dsp_ctx *dspc = this_cpu_ptr(scx_dsp_ctx);
 	bool prev_on_scx = prev->sched_class == &ext_sched_class;
+	bool prev_on_rq = prev->scx.flags & SCX_TASK_QUEUED;
 	int nr_loops = SCX_DSP_MAX_LOOPS;
 
 	lockdep_assert_rq_held(rq);
@@ -2662,8 +2663,7 @@ static int balance_one(struct rq *rq, struct task_struct *prev)
 		 * See scx_ops_disable_workfn() for the explanation on the
 		 * bypassing test.
 		 */
-		if ((prev->scx.flags & SCX_TASK_QUEUED) &&
-		    prev->scx.slice && !scx_rq_bypassing(rq)) {
+		if (prev_on_rq && prev->scx.slice && !scx_rq_bypassing(rq)) {
 			rq->scx.flags |= SCX_RQ_BAL_KEEP;
 			goto has_tasks;
 		}
@@ -2696,6 +2696,10 @@ static int balance_one(struct rq *rq, struct task_struct *prev)
 
 		flush_dispatch_buf(rq);
 
+		if (prev_on_rq && prev->scx.slice) {
+			rq->scx.flags |= SCX_RQ_BAL_KEEP;
+			goto has_tasks;
+		}
 		if (rq->scx.local_dsq.nr)
 			goto has_tasks;
 		if (consume_global_dsq(rq))
@@ -2721,8 +2725,7 @@ static int balance_one(struct rq *rq, struct task_struct *prev)
 	 * Didn't find another task to run. Keep running @prev unless
 	 * %SCX_OPS_ENQ_LAST is in effect.
 	 */
-	if ((prev->scx.flags & SCX_TASK_QUEUED) &&
-	    (!static_branch_unlikely(&scx_ops_enq_last) ||
+	if (prev_on_rq && (!static_branch_unlikely(&scx_ops_enq_last) ||
 	     scx_rq_bypassing(rq))) {
 		rq->scx.flags |= SCX_RQ_BAL_KEEP;
 		goto has_tasks;
-- 
2.39.5

[PATCH 6.12 064/122] iomap: avoid avoid truncating 64-bit offset to 32 bits

[Greg Kroah-Hartman]

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

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

From: Marco Nelissen <marco.nelissen@gmail.com>

[ Upstream commit c13094b894de289514d84b8db56d1f2931a0bade ]

on 32-bit kernels, iomap_write_delalloc_scan() was inadvertently using a
32-bit position due to folio_next_index() returning an unsigned long.
This could lead to an infinite loop when writing to an xfs filesystem.

Signed-off-by: Marco Nelissen <marco.nelissen@gmail.com>
Link: https://lore.kernel.org/r/20250109041253.2494374-1-marco.nelissen@gmail.com
Reviewed-by: Darrick J. Wong <djwong@kernel.org>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/iomap/buffered-io.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/fs/iomap/buffered-io.c b/fs/iomap/buffered-io.c
index 25d1ede6bb0eb..1bad460275ebe 100644
--- a/fs/iomap/buffered-io.c
+++ b/fs/iomap/buffered-io.c
@@ -1138,7 +1138,7 @@ static void iomap_write_delalloc_scan(struct inode *inode,
 				start_byte, end_byte, iomap, punch);
 
 		/* move offset to start of next folio in range */
-		start_byte = folio_next_index(folio) << PAGE_SHIFT;
+		start_byte = folio_pos(folio) + folio_size(folio);
 		folio_unlock(folio);
 		folio_put(folio);
 	}
-- 
2.39.5

[PATCH 6.12 065/122] afs: Fix merge preference rule failure condition

[Greg Kroah-Hartman]

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

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

From: Lizhi Xu <lizhi.xu@windriver.com>

[ Upstream commit 17a4fde81d3a7478d97d15304a6d61094a10c2e3 ]

syzbot reported a lock held when returning to userspace[1].  This is
because if argc is less than 0 and the function returns directly, the held
inode lock is not released.

Fix this by store the error in ret and jump to done to clean up instead of
returning directly.

[dh: Modified Lizhi Xu's original patch to make it honour the error code
from afs_split_string()]

[1]
WARNING: lock held when returning to user space!
6.13.0-rc3-syzkaller-00209-g499551201b5f #0 Not tainted
------------------------------------------------
syz-executor133/5823 is leaving the kernel with locks still held!
1 lock held by syz-executor133/5823:
 #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: inode_lock include/linux/fs.h:818 [inline]
 #0: ffff888071cffc00 (&sb->s_type->i_mutex_key#9){++++}-{4:4}, at: afs_proc_addr_prefs_write+0x2bb/0x14e0 fs/afs/addr_prefs.c:388

Reported-by: syzbot+76f33569875eb708e575@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=76f33569875eb708e575
Signed-off-by: Lizhi Xu <lizhi.xu@windriver.com>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://lore.kernel.org/r/20241226012616.2348907-1-lizhi.xu@windriver.com/
Link: https://lore.kernel.org/r/529850.1736261552@warthog.procyon.org.uk
Tested-by: syzbot+76f33569875eb708e575@syzkaller.appspotmail.com
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 fs/afs/addr_prefs.c | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/fs/afs/addr_prefs.c b/fs/afs/addr_prefs.c
index a189ff8a5034e..c0384201b8feb 100644
--- a/fs/afs/addr_prefs.c
+++ b/fs/afs/addr_prefs.c
@@ -413,8 +413,10 @@ int afs_proc_addr_prefs_write(struct file *file, char *buf, size_t size)
 
 	do {
 		argc = afs_split_string(&buf, argv, ARRAY_SIZE(argv));
-		if (argc < 0)
-			return argc;
+		if (argc < 0) {
+			ret = argc;
+			goto done;
+		}
 		if (argc < 2)
 			goto inval;
 
-- 
2.39.5

[PATCH 6.12 066/122] poll_wait: add mb() to fix theoretical race between waitqueue_active() and .poll()

[Greg Kroah-Hartman]

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

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

From: Oleg Nesterov <oleg@redhat.com>

[ Upstream commit cacd9ae4bf801ff4125d8961bb9a3ba955e51680 ]

As the comment above waitqueue_active() explains, it can only be used
if both waker and waiter have mb()'s that pair with each other. However
__pollwait() is broken in this respect.

This is not pipe-specific, but let's look at pipe_poll() for example:

	poll_wait(...); // -> __pollwait() -> add_wait_queue()

	LOAD(pipe->head);
	LOAD(pipe->head);

In theory these LOAD()'s can leak into the critical section inside
add_wait_queue() and can happen before list_add(entry, wq_head), in this
case pipe_poll() can race with wakeup_pipe_readers/writers which do

	smp_mb();
	if (waitqueue_active(wq_head))
		wake_up_interruptible(wq_head);

There are more __pollwait()-like functions (grep init_poll_funcptr), and
it seems that at least ep_ptable_queue_proc() has the same problem, so the
patch adds smp_mb() into poll_wait().

Link: https://lore.kernel.org/all/20250102163320.GA17691@redhat.com/
Signed-off-by: Oleg Nesterov <oleg@redhat.com>
Link: https://lore.kernel.org/r/20250107162717.GA18922@redhat.com
Signed-off-by: Christian Brauner <brauner@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 include/linux/poll.h | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/include/linux/poll.h b/include/linux/poll.h
index d1ea4f3714a84..fc641b50f1298 100644
--- a/include/linux/poll.h
+++ b/include/linux/poll.h
@@ -41,8 +41,16 @@ typedef struct poll_table_struct {
 
 static inline void poll_wait(struct file * filp, wait_queue_head_t * wait_address, poll_table *p)
 {
-	if (p && p->_qproc && wait_address)
+	if (p && p->_qproc && wait_address) {
 		p->_qproc(filp, wait_address, p);
+		/*
+		 * This memory barrier is paired in the wq_has_sleeper().
+		 * See the comment above prepare_to_wait(), we need to
+		 * ensure that subsequent tests in this thread can't be
+		 * reordered with __add_wait_queue() in _qproc() paths.
+		 */
+		smp_mb();
+	}
 }
 
 /*
-- 
2.39.5

[PATCH 6.12 067/122] selftests/sched_ext: fix build after renames in sched_ext API

[Greg Kroah-Hartman]

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

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

From: Ihor Solodrai <ihor.solodrai@pm.me>

[ Upstream commit ef7009decc30eb2515a64253791d61b72229c119 ]

The selftests are falining to build on current tip of bpf-next and
sched_ext [1]. This has broken BPF CI [2] after merge from upstream.

Use appropriate function names in the selftests according to the
recent changes in the sched_ext API [3].

[1] https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git/commit/?id=fc39fb56917bb3cb53e99560ca3612a84456ada2
[2] https://github.com/kernel-patches/bpf/actions/runs/11959327258/job/33340923745
[3] https://lore.kernel.org/all/20241109194853.580310-1-tj@kernel.org/

Signed-off-by: Ihor Solodrai <ihor.solodrai@pm.me>
Acked-by: Andrea Righi <arighi@nvidia.com>
Acked-by: David Vernet <void@manifault.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 .../testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c | 2 +-
 .../selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c        | 4 ++--
 tools/testing/selftests/sched_ext/dsp_local_on.bpf.c      | 2 +-
 .../selftests/sched_ext/enq_select_cpu_fails.bpf.c        | 2 +-
 tools/testing/selftests/sched_ext/exit.bpf.c              | 4 ++--
 tools/testing/selftests/sched_ext/maximal.bpf.c           | 4 ++--
 tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c    | 2 +-
 .../selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c   | 2 +-
 .../testing/selftests/sched_ext/select_cpu_dispatch.bpf.c | 2 +-
 .../selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c | 2 +-
 .../selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c | 4 ++--
 tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c  | 8 ++++----
 12 files changed, 19 insertions(+), 19 deletions(-)

diff --git a/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
index 37d9bf6fb7458..6f4c3f5a1c5d9 100644
--- a/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
+++ b/tools/testing/selftests/sched_ext/ddsp_bogus_dsq_fail.bpf.c
@@ -20,7 +20,7 @@ s32 BPF_STRUCT_OPS(ddsp_bogus_dsq_fail_select_cpu, struct task_struct *p,
 		 * If we dispatch to a bogus DSQ that will fall back to the
 		 * builtin global DSQ, we fail gracefully.
 		 */
-		scx_bpf_dispatch_vtime(p, 0xcafef00d, SCX_SLICE_DFL,
+		scx_bpf_dsq_insert_vtime(p, 0xcafef00d, SCX_SLICE_DFL,
 				       p->scx.dsq_vtime, 0);
 		return cpu;
 	}
diff --git a/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
index dffc97d9cdf14..e4a55027778fd 100644
--- a/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
+++ b/tools/testing/selftests/sched_ext/ddsp_vtimelocal_fail.bpf.c
@@ -17,8 +17,8 @@ s32 BPF_STRUCT_OPS(ddsp_vtimelocal_fail_select_cpu, struct task_struct *p,
 
 	if (cpu >= 0) {
 		/* Shouldn't be allowed to vtime dispatch to a builtin DSQ. */
-		scx_bpf_dispatch_vtime(p, SCX_DSQ_LOCAL, SCX_SLICE_DFL,
-				       p->scx.dsq_vtime, 0);
+		scx_bpf_dsq_insert_vtime(p, SCX_DSQ_LOCAL, SCX_SLICE_DFL,
+					 p->scx.dsq_vtime, 0);
 		return cpu;
 	}
 
diff --git a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
index 6a7db1502c29e..6325bf76f47ee 100644
--- a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
+++ b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
@@ -45,7 +45,7 @@ void BPF_STRUCT_OPS(dsp_local_on_dispatch, s32 cpu, struct task_struct *prev)
 
 	target = bpf_get_prandom_u32() % nr_cpus;
 
-	scx_bpf_dispatch(p, SCX_DSQ_LOCAL_ON | target, SCX_SLICE_DFL, 0);
+	scx_bpf_dsq_insert(p, SCX_DSQ_LOCAL_ON | target, SCX_SLICE_DFL, 0);
 	bpf_task_release(p);
 }
 
diff --git a/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c b/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c
index 1efb50d61040a..a7cf868d5e311 100644
--- a/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c
+++ b/tools/testing/selftests/sched_ext/enq_select_cpu_fails.bpf.c
@@ -31,7 +31,7 @@ void BPF_STRUCT_OPS(enq_select_cpu_fails_enqueue, struct task_struct *p,
 	/* Can only call from ops.select_cpu() */
 	scx_bpf_select_cpu_dfl(p, 0, 0, &found);
 
-	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
 }
 
 SEC(".struct_ops.link")
diff --git a/tools/testing/selftests/sched_ext/exit.bpf.c b/tools/testing/selftests/sched_ext/exit.bpf.c
index d75d4faf07f6d..4bc36182d3ffc 100644
--- a/tools/testing/selftests/sched_ext/exit.bpf.c
+++ b/tools/testing/selftests/sched_ext/exit.bpf.c
@@ -33,7 +33,7 @@ void BPF_STRUCT_OPS(exit_enqueue, struct task_struct *p, u64 enq_flags)
 	if (exit_point == EXIT_ENQUEUE)
 		EXIT_CLEANLY();
 
-	scx_bpf_dispatch(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
+	scx_bpf_dsq_insert(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
 }
 
 void BPF_STRUCT_OPS(exit_dispatch, s32 cpu, struct task_struct *p)
@@ -41,7 +41,7 @@ void BPF_STRUCT_OPS(exit_dispatch, s32 cpu, struct task_struct *p)
 	if (exit_point == EXIT_DISPATCH)
 		EXIT_CLEANLY();
 
-	scx_bpf_consume(DSQ_ID);
+	scx_bpf_dsq_move_to_local(DSQ_ID);
 }
 
 void BPF_STRUCT_OPS(exit_enable, struct task_struct *p)
diff --git a/tools/testing/selftests/sched_ext/maximal.bpf.c b/tools/testing/selftests/sched_ext/maximal.bpf.c
index 4d4cd8d966dba..4c005fa718103 100644
--- a/tools/testing/selftests/sched_ext/maximal.bpf.c
+++ b/tools/testing/selftests/sched_ext/maximal.bpf.c
@@ -20,7 +20,7 @@ s32 BPF_STRUCT_OPS(maximal_select_cpu, struct task_struct *p, s32 prev_cpu,
 
 void BPF_STRUCT_OPS(maximal_enqueue, struct task_struct *p, u64 enq_flags)
 {
-	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
 }
 
 void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
@@ -28,7 +28,7 @@ void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
 
 void BPF_STRUCT_OPS(maximal_dispatch, s32 cpu, struct task_struct *prev)
 {
-	scx_bpf_consume(SCX_DSQ_GLOBAL);
+	scx_bpf_dsq_move_to_local(SCX_DSQ_GLOBAL);
 }
 
 void BPF_STRUCT_OPS(maximal_runnable, struct task_struct *p, u64 enq_flags)
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
index f171ac4709706..13d0f5be788d1 100644
--- a/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
+++ b/tools/testing/selftests/sched_ext/select_cpu_dfl.bpf.c
@@ -30,7 +30,7 @@ void BPF_STRUCT_OPS(select_cpu_dfl_enqueue, struct task_struct *p,
 	}
 	scx_bpf_put_idle_cpumask(idle_mask);
 
-	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
 }
 
 SEC(".struct_ops.link")
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
index 9efdbb7da9288..815f1d5d61ac4 100644
--- a/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
+++ b/tools/testing/selftests/sched_ext/select_cpu_dfl_nodispatch.bpf.c
@@ -67,7 +67,7 @@ void BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_enqueue, struct task_struct *p,
 		saw_local = true;
 	}
 
-	scx_bpf_dispatch(p, dsq_id, SCX_SLICE_DFL, enq_flags);
+	scx_bpf_dsq_insert(p, dsq_id, SCX_SLICE_DFL, enq_flags);
 }
 
 s32 BPF_STRUCT_OPS(select_cpu_dfl_nodispatch_init_task,
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
index 59bfc4f36167a..4bb99699e9209 100644
--- a/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch.bpf.c
@@ -29,7 +29,7 @@ s32 BPF_STRUCT_OPS(select_cpu_dispatch_select_cpu, struct task_struct *p,
 	cpu = prev_cpu;
 
 dispatch:
-	scx_bpf_dispatch(p, dsq_id, SCX_SLICE_DFL, 0);
+	scx_bpf_dsq_insert(p, dsq_id, SCX_SLICE_DFL, 0);
 	return cpu;
 }
 
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
index 3bbd5fcdfb18e..2a75de11b2cfd 100644
--- a/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_bad_dsq.bpf.c
@@ -18,7 +18,7 @@ s32 BPF_STRUCT_OPS(select_cpu_dispatch_bad_dsq_select_cpu, struct task_struct *p
 		   s32 prev_cpu, u64 wake_flags)
 {
 	/* Dispatching to a random DSQ should fail. */
-	scx_bpf_dispatch(p, 0xcafef00d, SCX_SLICE_DFL, 0);
+	scx_bpf_dsq_insert(p, 0xcafef00d, SCX_SLICE_DFL, 0);
 
 	return prev_cpu;
 }
diff --git a/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
index 0fda57fe0ecfa..99d075695c974 100644
--- a/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
+++ b/tools/testing/selftests/sched_ext/select_cpu_dispatch_dbl_dsp.bpf.c
@@ -18,8 +18,8 @@ s32 BPF_STRUCT_OPS(select_cpu_dispatch_dbl_dsp_select_cpu, struct task_struct *p
 		   s32 prev_cpu, u64 wake_flags)
 {
 	/* Dispatching twice in a row is disallowed. */
-	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
-	scx_bpf_dispatch(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
+	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, 0);
 
 	return prev_cpu;
 }
diff --git a/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c b/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
index e6c67bcf5e6e3..bfcb96cd4954b 100644
--- a/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
+++ b/tools/testing/selftests/sched_ext/select_cpu_vtime.bpf.c
@@ -2,8 +2,8 @@
 /*
  * A scheduler that validates that enqueue flags are properly stored and
  * applied at dispatch time when a task is directly dispatched from
- * ops.select_cpu(). We validate this by using scx_bpf_dispatch_vtime(), and
- * making the test a very basic vtime scheduler.
+ * ops.select_cpu(). We validate this by using scx_bpf_dsq_insert_vtime(),
+ * and making the test a very basic vtime scheduler.
  *
  * Copyright (c) 2024 Meta Platforms, Inc. and affiliates.
  * Copyright (c) 2024 David Vernet <dvernet@meta.com>
@@ -47,13 +47,13 @@ s32 BPF_STRUCT_OPS(select_cpu_vtime_select_cpu, struct task_struct *p,
 	cpu = prev_cpu;
 	scx_bpf_test_and_clear_cpu_idle(cpu);
 ddsp:
-	scx_bpf_dispatch_vtime(p, VTIME_DSQ, SCX_SLICE_DFL, task_vtime(p), 0);
+	scx_bpf_dsq_insert_vtime(p, VTIME_DSQ, SCX_SLICE_DFL, task_vtime(p), 0);
 	return cpu;
 }
 
 void BPF_STRUCT_OPS(select_cpu_vtime_dispatch, s32 cpu, struct task_struct *p)
 {
-	if (scx_bpf_consume(VTIME_DSQ))
+	if (scx_bpf_dsq_move_to_local(VTIME_DSQ))
 		consumed = true;
 }
 
-- 
2.39.5

[PATCH 6.12 068/122] scx: Fix maximal BPF selftest prog

[Greg Kroah-Hartman]

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

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

From: David Vernet <void@manifault.com>

[ Upstream commit b8f614207b0d5e4abd6df8d5cb3cc11f009d1d93 ]

maximal.bpf.c is still dispatching to and consuming from SCX_DSQ_GLOBAL.
Let's have it use its own DSQ to avoid any runtime errors.

Signed-off-by: David Vernet <void@manifault.com>
Tested-by: Andrea Righi <arighi@nvidia.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/sched_ext/maximal.bpf.c | 8 +++++---
 1 file changed, 5 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/sched_ext/maximal.bpf.c b/tools/testing/selftests/sched_ext/maximal.bpf.c
index 4c005fa718103..430f5e13bf554 100644
--- a/tools/testing/selftests/sched_ext/maximal.bpf.c
+++ b/tools/testing/selftests/sched_ext/maximal.bpf.c
@@ -12,6 +12,8 @@
 
 char _license[] SEC("license") = "GPL";
 
+#define DSQ_ID 0
+
 s32 BPF_STRUCT_OPS(maximal_select_cpu, struct task_struct *p, s32 prev_cpu,
 		   u64 wake_flags)
 {
@@ -20,7 +22,7 @@ s32 BPF_STRUCT_OPS(maximal_select_cpu, struct task_struct *p, s32 prev_cpu,
 
 void BPF_STRUCT_OPS(maximal_enqueue, struct task_struct *p, u64 enq_flags)
 {
-	scx_bpf_dsq_insert(p, SCX_DSQ_GLOBAL, SCX_SLICE_DFL, enq_flags);
+	scx_bpf_dsq_insert(p, DSQ_ID, SCX_SLICE_DFL, enq_flags);
 }
 
 void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
@@ -28,7 +30,7 @@ void BPF_STRUCT_OPS(maximal_dequeue, struct task_struct *p, u64 deq_flags)
 
 void BPF_STRUCT_OPS(maximal_dispatch, s32 cpu, struct task_struct *prev)
 {
-	scx_bpf_dsq_move_to_local(SCX_DSQ_GLOBAL);
+	scx_bpf_dsq_move_to_local(DSQ_ID);
 }
 
 void BPF_STRUCT_OPS(maximal_runnable, struct task_struct *p, u64 enq_flags)
@@ -123,7 +125,7 @@ void BPF_STRUCT_OPS(maximal_cgroup_set_weight, struct cgroup *cgrp, u32 weight)
 
 s32 BPF_STRUCT_OPS_SLEEPABLE(maximal_init)
 {
-	return 0;
+	return scx_bpf_create_dsq(DSQ_ID, -1);
 }
 
 void BPF_STRUCT_OPS(maximal_exit, struct scx_exit_info *info)
-- 
2.39.5

[PATCH 6.12 069/122] RDMA/bnxt_re: Fix to export port num to ib_query_qp

[Greg Kroah-Hartman]

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

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

From: Hongguang Gao <hongguang.gao@broadcom.com>

[ Upstream commit 34db8ec931b84d1426423f263b1927539e73b397 ]

Current driver implementation doesn't populate the port_num
field in query_qp. Adding the code to convert internal firmware
port id to ibv defined port number and export it.

Reviewed-by: Saravanan Vajravel <saravanan.vajravel@broadcom.com>
Reviewed-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Hongguang Gao <hongguang.gao@broadcom.com>
Signed-off-by: Selvin Xavier <selvin.xavier@broadcom.com>
Link: https://patch.msgid.link/20241211083931.968831-5-kalesh-anakkur.purayil@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 | 1 +
 drivers/infiniband/hw/bnxt_re/ib_verbs.h | 4 ++++
 drivers/infiniband/hw/bnxt_re/qplib_fp.c | 1 +
 drivers/infiniband/hw/bnxt_re/qplib_fp.h | 1 +
 4 files changed, 7 insertions(+)

diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.c b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
index b20cffcc3e7d2..14e434ff51ede 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.c
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.c
@@ -2269,6 +2269,7 @@ int bnxt_re_query_qp(struct ib_qp *ib_qp, struct ib_qp_attr *qp_attr,
 	qp_attr->retry_cnt = qplib_qp->retry_cnt;
 	qp_attr->rnr_retry = qplib_qp->rnr_retry;
 	qp_attr->min_rnr_timer = qplib_qp->min_rnr_timer;
+	qp_attr->port_num = __to_ib_port_num(qplib_qp->port_id);
 	qp_attr->rq_psn = qplib_qp->rq.psn;
 	qp_attr->max_rd_atomic = qplib_qp->max_rd_atomic;
 	qp_attr->sq_psn = qplib_qp->sq.psn;
diff --git a/drivers/infiniband/hw/bnxt_re/ib_verbs.h b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
index b789e47ec97a8..9cd8f770d1b27 100644
--- a/drivers/infiniband/hw/bnxt_re/ib_verbs.h
+++ b/drivers/infiniband/hw/bnxt_re/ib_verbs.h
@@ -264,6 +264,10 @@ void bnxt_re_dealloc_ucontext(struct ib_ucontext *context);
 int bnxt_re_mmap(struct ib_ucontext *context, struct vm_area_struct *vma);
 void bnxt_re_mmap_free(struct rdma_user_mmap_entry *rdma_entry);
 
+static inline u32 __to_ib_port_num(u16 port_id)
+{
+	return (u32)port_id + 1;
+}
 
 unsigned long bnxt_re_lock_cqs(struct bnxt_re_qp *qp);
 void bnxt_re_unlock_cqs(struct bnxt_re_qp *qp, unsigned long flags);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.c b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
index 828e2f9808012..613b5fc70e13e 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.c
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.c
@@ -1479,6 +1479,7 @@ int bnxt_qplib_query_qp(struct bnxt_qplib_res *res, struct bnxt_qplib_qp *qp)
 	qp->dest_qpn = le32_to_cpu(sb->dest_qp_id);
 	memcpy(qp->smac, sb->src_mac, 6);
 	qp->vlan_id = le16_to_cpu(sb->vlan_pcp_vlan_dei_vlan_id);
+	qp->port_id = le16_to_cpu(sb->port_id);
 bail:
 	dma_free_coherent(&rcfw->pdev->dev, sbuf.size,
 			  sbuf.sb, sbuf.dma_addr);
diff --git a/drivers/infiniband/hw/bnxt_re/qplib_fp.h b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
index d8c71c024613b..6f02954eb1429 100644
--- a/drivers/infiniband/hw/bnxt_re/qplib_fp.h
+++ b/drivers/infiniband/hw/bnxt_re/qplib_fp.h
@@ -298,6 +298,7 @@ struct bnxt_qplib_qp {
 	u32				dest_qpn;
 	u8				smac[6];
 	u16				vlan_id;
+	u16				port_id;
 	u8				nw_type;
 	struct bnxt_qplib_ah		ah;
 
-- 
2.39.5

[PATCH 6.12 070/122] sched_ext: Fix dsq_local_on selftest

[Greg Kroah-Hartman]

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

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

From: Tejun Heo <tj@kernel.org>

[ Upstream commit ce2b93fc1dfa1c82f2576aa571731c4e5dcc8dd7 ]

The dsp_local_on selftest expects the scheduler to fail by trying to
schedule an e.g. CPU-affine task to the wrong CPU. However, this isn't
guaranteed to happen in the 1 second window that the test is running.
Besides, it's odd to have this particular exception path tested when there
are no other tests that verify that the interface is working at all - e.g.
the test would pass if dsp_local_on interface is completely broken and fails
on any attempt.

Flip the test so that it verifies that the feature works. While at it, fix a
typo in the info message.

Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: Ihor Solodrai <ihor.solodrai@pm.me>
Link: http://lkml.kernel.org/r/Z1n9v7Z6iNJ-wKmq@slm.duckdns.org
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 tools/testing/selftests/sched_ext/dsp_local_on.bpf.c | 5 ++++-
 tools/testing/selftests/sched_ext/dsp_local_on.c     | 5 +++--
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
index 6325bf76f47ee..fbda6bf546712 100644
--- a/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
+++ b/tools/testing/selftests/sched_ext/dsp_local_on.bpf.c
@@ -43,7 +43,10 @@ void BPF_STRUCT_OPS(dsp_local_on_dispatch, s32 cpu, struct task_struct *prev)
 	if (!p)
 		return;
 
-	target = bpf_get_prandom_u32() % nr_cpus;
+	if (p->nr_cpus_allowed == nr_cpus)
+		target = bpf_get_prandom_u32() % nr_cpus;
+	else
+		target = scx_bpf_task_cpu(p);
 
 	scx_bpf_dsq_insert(p, SCX_DSQ_LOCAL_ON | target, SCX_SLICE_DFL, 0);
 	bpf_task_release(p);
diff --git a/tools/testing/selftests/sched_ext/dsp_local_on.c b/tools/testing/selftests/sched_ext/dsp_local_on.c
index 472851b568548..0ff27e57fe430 100644
--- a/tools/testing/selftests/sched_ext/dsp_local_on.c
+++ b/tools/testing/selftests/sched_ext/dsp_local_on.c
@@ -34,9 +34,10 @@ static enum scx_test_status run(void *ctx)
 	/* Just sleeping is fine, plenty of scheduling events happening */
 	sleep(1);
 
-	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_ERROR));
 	bpf_link__destroy(link);
 
+	SCX_EQ(skel->data->uei.kind, EXIT_KIND(SCX_EXIT_UNREG));
+
 	return SCX_TEST_PASS;
 }
 
@@ -50,7 +51,7 @@ static void cleanup(void *ctx)
 struct scx_test dsp_local_on = {
 	.name = "dsp_local_on",
 	.description = "Verify we can directly dispatch tasks to a local DSQs "
-		       "from osp.dispatch()",
+		       "from ops.dispatch()",
 	.setup = setup,
 	.run = run,
 	.cleanup = cleanup,
-- 
2.39.5

[PATCH 6.12 071/122] nvmet: propagate npwg topology

[Greg Kroah-Hartman]

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

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

From: Luis Chamberlain <mcgrof@kernel.org>

[ Upstream commit b579d6fdc3a9149bb4d2b3133cc0767130ed13e6 ]

Ensure we propagate npwg to the target as well instead
of assuming its the same logical blocks per physical block.

This ensures devices with large IUs information properly
propagated on the target.

Signed-off-by: Luis Chamberlain <mcgrof@kernel.org>
Reviewed-by: Sagi Grimberg <sagi@grimberg.me>
Signed-off-by: Keith Busch <kbusch@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 drivers/nvme/target/io-cmd-bdev.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/nvme/target/io-cmd-bdev.c b/drivers/nvme/target/io-cmd-bdev.c
index 0bda83d0fc3e0..eaf31c823cbe8 100644
--- a/drivers/nvme/target/io-cmd-bdev.c
+++ b/drivers/nvme/target/io-cmd-bdev.c
@@ -36,7 +36,7 @@ void nvmet_bdev_set_limits(struct block_device *bdev, struct nvme_id_ns *id)
 	 */
 	id->nsfeat |= 1 << 4;
 	/* NPWG = Namespace Preferred Write Granularity. 0's based */
-	id->npwg = lpp0b;
+	id->npwg = to0based(bdev_io_min(bdev) / bdev_logical_block_size(bdev));
 	/* NPWA = Namespace Preferred Write Alignment. 0's based */
 	id->npwa = id->npwg;
 	/* NPDG = Namespace Preferred Deallocate Granularity. 0's based */
-- 
2.39.5

[PATCH 6.12 072/122] sched/fair: Fix EEVDF entity placement bug causing scheduling lag

[Greg Kroah-Hartman]

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

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

From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit 6d71a9c6160479899ee744d2c6d6602a191deb1f ]

I noticed this in my traces today:

       turbostat-1222    [006] d..2.   311.935649: reweight_entity: (ffff888108f13e00-ffff88885ef38440-6)
                               { weight: 1048576 avg_vruntime: 3184159639071 vruntime: 3184159640194 (-1123) deadline: 3184162621107 } ->
                               { weight: 2 avg_vruntime: 3184177463330 vruntime: 3184748414495 (-570951165) deadline: 4747605329439 }
       turbostat-1222    [006] d..2.   311.935651: reweight_entity: (ffff888108f13e00-ffff88885ef38440-6)
                               { weight: 2 avg_vruntime: 3184177463330 vruntime: 3184748414495 (-570951165) deadline: 4747605329439 } ->
                               { weight: 1048576 avg_vruntime: 3184176414812 vruntime: 3184177464419 (-1049607) deadline: 3184180445332 }

Which is a weight transition: 1048576 -> 2 -> 1048576.

One would expect the lag to shoot out *AND* come back, notably:

  -1123*1048576/2 = -588775424
  -588775424*2/1048576 = -1123

Except the trace shows it is all off. Worse, subsequent cycles shoot it
out further and further.

This made me have a very hard look at reweight_entity(), and
specifically the ->on_rq case, which is more prominent with
DELAY_DEQUEUE.

And indeed, it is all sorts of broken. While the computation of the new
lag is correct, the computation for the new vruntime, using the new lag
is broken for it does not consider the logic set out in place_entity().

With the below patch, I now see things like:

    migration/12-55      [012] d..3.   309.006650: reweight_entity: (ffff8881e0e6f600-ffff88885f235f40-12)
                               { weight: 977582 avg_vruntime: 4860513347366 vruntime: 4860513347908 (-542) deadline: 4860516552475 } ->
                               { weight: 2 avg_vruntime: 4860528915984 vruntime: 4860793840706 (-264924722) deadline: 6427157349203 }
    migration/14-62      [014] d..3.   309.006698: reweight_entity: (ffff8881e0e6cc00-ffff88885f3b5f40-15)
                               { weight: 2 avg_vruntime: 4874472992283 vruntime: 4939833828823 (-65360836540) deadline: 6316614641111 } ->
                               { weight: 967149 avg_vruntime: 4874217684324 vruntime: 4874217688559 (-4235) deadline: 4874220535650 }

Which isn't perfect yet, but much closer.

Reported-by: Doug Smythies <dsmythies@telus.net>
Reported-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Ingo Molnar <mingo@kernel.org>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Fixes: eab03c23c2a1 ("sched/eevdf: Fix vruntime adjustment on reweight")
Link: https://lore.kernel.org/r/20250109105959.GA2981@noisy.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/fair.c | 145 ++++++--------------------------------------
 1 file changed, 18 insertions(+), 127 deletions(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index 1ca96c99872f0..bf8153af96879 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -689,21 +689,16 @@ u64 avg_vruntime(struct cfs_rq *cfs_rq)
  *
  * XXX could add max_slice to the augmented data to track this.
  */
-static s64 entity_lag(u64 avruntime, struct sched_entity *se)
+static void update_entity_lag(struct cfs_rq *cfs_rq, struct sched_entity *se)
 {
 	s64 vlag, limit;
 
-	vlag = avruntime - se->vruntime;
-	limit = calc_delta_fair(max_t(u64, 2*se->slice, TICK_NSEC), se);
-
-	return clamp(vlag, -limit, limit);
-}
-
-static void update_entity_lag(struct cfs_rq *cfs_rq, struct sched_entity *se)
-{
 	SCHED_WARN_ON(!se->on_rq);
 
-	se->vlag = entity_lag(avg_vruntime(cfs_rq), se);
+	vlag = avg_vruntime(cfs_rq) - se->vruntime;
+	limit = calc_delta_fair(max_t(u64, 2*se->slice, TICK_NSEC), se);
+
+	se->vlag = clamp(vlag, -limit, limit);
 }
 
 /*
@@ -3774,137 +3769,32 @@ static inline void
 dequeue_load_avg(struct cfs_rq *cfs_rq, struct sched_entity *se) { }
 #endif
 
-static void reweight_eevdf(struct sched_entity *se, u64 avruntime,
-			   unsigned long weight)
-{
-	unsigned long old_weight = se->load.weight;
-	s64 vlag, vslice;
-
-	/*
-	 * VRUNTIME
-	 * --------
-	 *
-	 * COROLLARY #1: The virtual runtime of the entity needs to be
-	 * adjusted if re-weight at !0-lag point.
-	 *
-	 * Proof: For contradiction assume this is not true, so we can
-	 * re-weight without changing vruntime at !0-lag point.
-	 *
-	 *             Weight	VRuntime   Avg-VRuntime
-	 *     before    w          v            V
-	 *      after    w'         v'           V'
-	 *
-	 * Since lag needs to be preserved through re-weight:
-	 *
-	 *	lag = (V - v)*w = (V'- v')*w', where v = v'
-	 *	==>	V' = (V - v)*w/w' + v		(1)
-	 *
-	 * Let W be the total weight of the entities before reweight,
-	 * since V' is the new weighted average of entities:
-	 *
-	 *	V' = (WV + w'v - wv) / (W + w' - w)	(2)
-	 *
-	 * by using (1) & (2) we obtain:
-	 *
-	 *	(WV + w'v - wv) / (W + w' - w) = (V - v)*w/w' + v
-	 *	==> (WV-Wv+Wv+w'v-wv)/(W+w'-w) = (V - v)*w/w' + v
-	 *	==> (WV - Wv)/(W + w' - w) + v = (V - v)*w/w' + v
-	 *	==>	(V - v)*W/(W + w' - w) = (V - v)*w/w' (3)
-	 *
-	 * Since we are doing at !0-lag point which means V != v, we
-	 * can simplify (3):
-	 *
-	 *	==>	W / (W + w' - w) = w / w'
-	 *	==>	Ww' = Ww + ww' - ww
-	 *	==>	W * (w' - w) = w * (w' - w)
-	 *	==>	W = w	(re-weight indicates w' != w)
-	 *
-	 * So the cfs_rq contains only one entity, hence vruntime of
-	 * the entity @v should always equal to the cfs_rq's weighted
-	 * average vruntime @V, which means we will always re-weight
-	 * at 0-lag point, thus breach assumption. Proof completed.
-	 *
-	 *
-	 * COROLLARY #2: Re-weight does NOT affect weighted average
-	 * vruntime of all the entities.
-	 *
-	 * Proof: According to corollary #1, Eq. (1) should be:
-	 *
-	 *	(V - v)*w = (V' - v')*w'
-	 *	==>    v' = V' - (V - v)*w/w'		(4)
-	 *
-	 * According to the weighted average formula, we have:
-	 *
-	 *	V' = (WV - wv + w'v') / (W - w + w')
-	 *	   = (WV - wv + w'(V' - (V - v)w/w')) / (W - w + w')
-	 *	   = (WV - wv + w'V' - Vw + wv) / (W - w + w')
-	 *	   = (WV + w'V' - Vw) / (W - w + w')
-	 *
-	 *	==>  V'*(W - w + w') = WV + w'V' - Vw
-	 *	==>	V' * (W - w) = (W - w) * V	(5)
-	 *
-	 * If the entity is the only one in the cfs_rq, then reweight
-	 * always occurs at 0-lag point, so V won't change. Or else
-	 * there are other entities, hence W != w, then Eq. (5) turns
-	 * into V' = V. So V won't change in either case, proof done.
-	 *
-	 *
-	 * So according to corollary #1 & #2, the effect of re-weight
-	 * on vruntime should be:
-	 *
-	 *	v' = V' - (V - v) * w / w'		(4)
-	 *	   = V  - (V - v) * w / w'
-	 *	   = V  - vl * w / w'
-	 *	   = V  - vl'
-	 */
-	if (avruntime != se->vruntime) {
-		vlag = entity_lag(avruntime, se);
-		vlag = div_s64(vlag * old_weight, weight);
-		se->vruntime = avruntime - vlag;
-	}
-
-	/*
-	 * DEADLINE
-	 * --------
-	 *
-	 * When the weight changes, the virtual time slope changes and
-	 * we should adjust the relative virtual deadline accordingly.
-	 *
-	 *	d' = v' + (d - v)*w/w'
-	 *	   = V' - (V - v)*w/w' + (d - v)*w/w'
-	 *	   = V  - (V - v)*w/w' + (d - v)*w/w'
-	 *	   = V  + (d - V)*w/w'
-	 */
-	vslice = (s64)(se->deadline - avruntime);
-	vslice = div_s64(vslice * old_weight, weight);
-	se->deadline = avruntime + vslice;
-}
+static void place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags);
 
 static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
 			    unsigned long weight)
 {
 	bool curr = cfs_rq->curr == se;
-	u64 avruntime;
 
 	if (se->on_rq) {
 		/* commit outstanding execution time */
 		update_curr(cfs_rq);
-		avruntime = avg_vruntime(cfs_rq);
+		update_entity_lag(cfs_rq, se);
+		se->deadline -= se->vruntime;
+		se->rel_deadline = 1;
 		if (!curr)
 			__dequeue_entity(cfs_rq, se);
 		update_load_sub(&cfs_rq->load, se->load.weight);
 	}
 	dequeue_load_avg(cfs_rq, se);
 
-	if (se->on_rq) {
-		reweight_eevdf(se, avruntime, weight);
-	} else {
-		/*
-		 * Because we keep se->vlag = V - v_i, while: lag_i = w_i*(V - v_i),
-		 * we need to scale se->vlag when w_i changes.
-		 */
-		se->vlag = div_s64(se->vlag * se->load.weight, weight);
-	}
+	/*
+	 * Because we keep se->vlag = V - v_i, while: lag_i = w_i*(V - v_i),
+	 * we need to scale se->vlag when w_i changes.
+	 */
+	se->vlag = div_s64(se->vlag * se->load.weight, weight);
+	if (se->rel_deadline)
+		se->deadline = div_s64(se->deadline * se->load.weight, weight);
 
 	update_load_set(&se->load, weight);
 
@@ -3919,6 +3809,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
 	enqueue_load_avg(cfs_rq, se);
 	if (se->on_rq) {
 		update_load_add(&cfs_rq->load, se->load.weight);
+		place_entity(cfs_rq, se, 0);
 		if (!curr)
 			__enqueue_entity(cfs_rq, se);
 
@@ -5359,7 +5250,7 @@ place_entity(struct cfs_rq *cfs_rq, struct sched_entity *se, int flags)
 
 	se->vruntime = vruntime - lag;
 
-	if (sched_feat(PLACE_REL_DEADLINE) && se->rel_deadline) {
+	if (se->rel_deadline) {
 		se->deadline += se->vruntime;
 		se->rel_deadline = 0;
 		return;
-- 
2.39.5

[PATCH 6.12 073/122] sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE

[Greg Kroah-Hartman]

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

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

From: Peter Zijlstra <peterz@infradead.org>

[ Upstream commit 66951e4860d3c688bfa550ea4a19635b57e00eca ]

Normally dequeue_entities() will continue to dequeue an empty group entity;
except DELAY_DEQUEUE changes things -- it retains empty entities such that they
might continue to compete and burn off some lag.

However, doing this results in update_cfs_group() re-computing the cgroup
weight 'slice' for an empty group, which it (rightly) figures isn't much at
all. This in turn means that the delayed entity is not competing at the
expected weight. Worse, the very low weight causes its lag to be inflated,
which combined with avg_vruntime() using scale_load_down(), leads to artifacts.

As such, don't adjust the weight for empty group entities and let them compete
at their original weight.

Fixes: 152e11f6df29 ("sched/fair: Implement delayed dequeue")
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lkml.kernel.org/r/20250110115720.GA17405@noisy.programming.kicks-ass.net
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 kernel/sched/fair.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index bf8153af96879..7f8677ce83f9f 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3956,7 +3956,11 @@ static void update_cfs_group(struct sched_entity *se)
 	struct cfs_rq *gcfs_rq = group_cfs_rq(se);
 	long shares;
 
-	if (!gcfs_rq)
+	/*
+	 * When a group becomes empty, preserve its weight. This matters for
+	 * DELAY_DEQUEUE.
+	 */
+	if (!gcfs_rq || !gcfs_rq->load.weight)
 		return;
 
 	if (throttled_hierarchy(gcfs_rq))
-- 
2.39.5

[PATCH 6.12 074/122] x86/asm: Make serialize() always_inline

[Greg Kroah-Hartman]

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

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

From: Juergen Gross <jgross@suse.com>

[ Upstream commit ae02ae16b76160f0aeeae2c5fb9b15226d00a4ef ]

In order to allow serialize() to be used from noinstr code, make it
__always_inline.

Fixes: 0ef8047b737d ("x86/static-call: provide a way to do very early static-call updates")
Closes: https://lore.kernel.org/oe-kbuild-all/202412181756.aJvzih2K-lkp@intel.com/
Reported-by: kernel test robot <lkp@intel.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Link: https://lore.kernel.org/r/20241218100918.22167-1-jgross@suse.com
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
 arch/x86/include/asm/special_insns.h | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/include/asm/special_insns.h b/arch/x86/include/asm/special_insns.h
index aec6e2d3aa1d5..98bfc097389c4 100644
--- a/arch/x86/include/asm/special_insns.h
+++ b/arch/x86/include/asm/special_insns.h
@@ -217,7 +217,7 @@ static inline int write_user_shstk_64(u64 __user *addr, u64 val)
 
 #define nop() asm volatile ("nop")
 
-static inline void serialize(void)
+static __always_inline void serialize(void)
 {
 	/* Instruction opcode for SERIALIZE; supported in binutils >= 2.35. */
 	asm volatile(".byte 0xf, 0x1, 0xe8" ::: "memory");
-- 
2.39.5

[PATCH 6.12 075/122] ALSA: hda/realtek: Add support for Ayaneo System using CS35L41 HDA

[Greg Kroah-Hartman]

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

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

From: Stefan Binding <sbinding@opensource.cirrus.com>

commit de5afaddd5a7af6b9c48900741b410ca03e453ae upstream.

Add support for Ayaneo Portable Game System.

System use 2 CS35L41 Amps with HDA, using Internal boost, with I2C

Signed-off-by: Stefan Binding <sbinding@opensource.cirrus.com>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250109165455.645810-1-sbinding@opensource.cirrus.com
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
@@ -10979,6 +10979,7 @@ static const struct hda_quirk alc269_fix
 	SND_PCI_QUIRK(0x1d72, 0x1901, "RedmiBook 14", ALC256_FIXUP_ASUS_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1d72, 0x1945, "Redmi G", ALC256_FIXUP_ASUS_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1d72, 0x1947, "RedmiBook Air", ALC255_FIXUP_XIAOMI_HEADSET_MIC),
+	SND_PCI_QUIRK(0x1f66, 0x0105, "Ayaneo Portable Game Player", ALC287_FIXUP_CS35L41_I2C_2),
 	SND_PCI_QUIRK(0x2782, 0x0214, "VAIO VJFE-CL", ALC269_FIXUP_LIMIT_INT_MIC_BOOST),
 	SND_PCI_QUIRK(0x2782, 0x0228, "Infinix ZERO BOOK 13", ALC269VB_FIXUP_INFINIX_ZERO_BOOK_13),
 	SND_PCI_QUIRK(0x2782, 0x0232, "CHUWI CoreBook XPro", ALC269VB_FIXUP_CHUWI_COREBOOK_XPRO),

[PATCH 6.12 076/122] ALSA: hda/realtek: fixup ASUS GA605W

[Greg Kroah-Hartman]

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

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

From: Luke D. Jones <luke@ljones.dev>

commit f67b1ef261f4370c48e3a7d19907de136be2d5bd upstream.

The GA605W laptop has almost the exact same codec setup as the GA403
and so the same quirks apply to it.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250111022754.177551-1-luke@ljones.dev
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
@@ -10625,6 +10625,7 @@ static const struct hda_quirk alc269_fix
 	SND_PCI_QUIRK(0x1043, 0x1e1f, "ASUS Vivobook 15 X1504VAP", ALC2XX_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1043, 0x1e51, "ASUS Zephyrus M15", ALC294_FIXUP_ASUS_GU502_PINS),
 	SND_PCI_QUIRK(0x1043, 0x1e5e, "ASUS ROG Strix G513", ALC294_FIXUP_ASUS_G513_PINS),
+	SND_PCI_QUIRK(0x1043, 0x1e83, "ASUS GA605W", ALC285_FIXUP_ASUS_GU605_SPI_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1e8e, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1eb3, "ASUS Ally RCLA72", ALC287_FIXUP_TAS2781_I2C),
 	SND_PCI_QUIRK(0x1043, 0x1ed3, "ASUS HN7306W", ALC287_FIXUP_CS35L41_I2C_2),

[PATCH 6.12 077/122] ALSA: hda/realtek: fixup ASUS H7606W

[Greg Kroah-Hartman]

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

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

From: Luke D. Jones <luke@ljones.dev>

commit 44a48b26639e591e53f6f72000c16576ce107274 upstream.

The H7606W laptop has almost the exact same codec setup as the GA403
and so the same quirks apply to it.

Signed-off-by: Luke D. Jones <luke@ljones.dev>
Cc: <stable@vger.kernel.org>
Link: https://patch.msgid.link/20250111022754.177551-2-luke@ljones.dev
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
@@ -10625,6 +10625,7 @@ static const struct hda_quirk alc269_fix
 	SND_PCI_QUIRK(0x1043, 0x1e1f, "ASUS Vivobook 15 X1504VAP", ALC2XX_FIXUP_HEADSET_MIC),
 	SND_PCI_QUIRK(0x1043, 0x1e51, "ASUS Zephyrus M15", ALC294_FIXUP_ASUS_GU502_PINS),
 	SND_PCI_QUIRK(0x1043, 0x1e5e, "ASUS ROG Strix G513", ALC294_FIXUP_ASUS_G513_PINS),
+	SND_PCI_QUIRK(0x1043, 0x1e63, "ASUS H7606W", ALC285_FIXUP_ASUS_GU605_SPI_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1e83, "ASUS GA605W", ALC285_FIXUP_ASUS_GU605_SPI_SPEAKER2_TO_DAC1),
 	SND_PCI_QUIRK(0x1043, 0x1e8e, "ASUS Zephyrus G15", ALC289_FIXUP_ASUS_GA401),
 	SND_PCI_QUIRK(0x1043, 0x1eb3, "ASUS Ally RCLA72", ALC287_FIXUP_TAS2781_I2C),

[PATCH 6.12 078/122] zram: fix potential UAF of zram table

[Greg Kroah-Hartman]

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

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

From: Kairui Song <kasong@tencent.com>

commit 212fe1c0df4a150fb6298db2cfff267ceaba5402 upstream.

If zram_meta_alloc failed early, it frees allocated zram->table without
setting it NULL.  Which will potentially cause zram_meta_free to access
the table if user reset an failed and uninitialized device.

Link: https://lkml.kernel.org/r/20250107065446.86928-1-ryncsn@gmail.com
Fixes: 74363ec674cb ("zram: fix uninitialized ZRAM not releasing backing device")
Signed-off-by: Kairui Song <kasong@tencent.com>
Reviewed-by:  Sergey Senozhatsky <senozhatsky@chromium.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/block/zram/zram_drv.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/block/zram/zram_drv.c
+++ b/drivers/block/zram/zram_drv.c
@@ -1349,6 +1349,7 @@ static bool zram_meta_alloc(struct zram
 	zram->mem_pool = zs_create_pool(zram->disk->disk_name);
 	if (!zram->mem_pool) {
 		vfree(zram->table);
+		zram->table = NULL;
 		return false;
 	}
 

[PATCH 6.12 079/122] i2c: atr: Fix client detach

[Greg Kroah-Hartman]

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

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

From: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>

commit cefc479cbb50399dec0c8e996f3539c48a1ee9dd upstream.

i2c-atr catches the BUS_NOTIFY_DEL_DEVICE event on the bus and removes
the translation by calling i2c_atr_detach_client().

However, BUS_NOTIFY_DEL_DEVICE happens when the device is about to be
removed from this bus, i.e. before removal, and thus before calling
.remove() on the driver. If the driver happens to do any i2c
transactions in its remove(), they will fail.

Fix this by catching BUS_NOTIFY_REMOVED_DEVICE instead, thus removing
the translation only after the device is actually removed.

Fixes: a076a860acae ("media: i2c: add I2C Address Translator (ATR) support")
Cc: stable@vger.kernel.org
Signed-off-by: Tomi Valkeinen <tomi.valkeinen+renesas@ideasonboard.com>
Reviewed-by: Luca Ceresoli <luca.ceresoli@bootlin.com>
Reviewed-by: Romain Gantois <romain.gantois@bootlin.com>
Tested-by: Romain Gantois <romain.gantois@bootlin.com>
Signed-off-by: Wolfram Sang <wsa+renesas@sang-engineering.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/i2c/i2c-atr.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/i2c/i2c-atr.c
+++ b/drivers/i2c/i2c-atr.c
@@ -412,7 +412,7 @@ static int i2c_atr_bus_notifier_call(str
 				dev_name(dev), ret);
 		break;
 
-	case BUS_NOTIFY_DEL_DEVICE:
+	case BUS_NOTIFY_REMOVED_DEVICE:
 		i2c_atr_detach_client(client->adapter, client);
 		break;
 

[PATCH 6.12 080/122] mptcp: be sure to send ack when mptcp-level window re-opens

[Greg Kroah-Hartman]

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

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

From: Paolo Abeni <pabeni@redhat.com>

commit 2ca06a2f65310aeef30bb69b7405437a14766e4d upstream.

mptcp_cleanup_rbuf() is responsible to send acks when the user-space
reads enough data to update the receive windows significantly.

It tries hard to avoid acquiring the subflow sockets locks by checking
conditions similar to the ones implemented at the TCP level.

To avoid too much code duplication - the MPTCP protocol can't reuse the
TCP helpers as part of the relevant status is maintained into the msk
socket - and multiple costly window size computation, mptcp_cleanup_rbuf
uses a rough estimate for the most recently advertised window size:
the MPTCP receive free space, as recorded as at last-ack time.

Unfortunately the above does not allow mptcp_cleanup_rbuf() to detect
a zero to non-zero win change in some corner cases, skipping the
tcp_cleanup_rbuf call and leaving the peer stuck.

After commit ea66758c1795 ("tcp: allow MPTCP to update the announced
window"), MPTCP has actually cheap access to the announced window value.
Use it in mptcp_cleanup_rbuf() for a more accurate ack generation.

Fixes: e3859603ba13 ("mptcp: better msk receive window updates")
Cc: stable@vger.kernel.org
Reported-by: Jakub Kicinski <kuba@kernel.org>
Closes: https://lore.kernel.org/20250107131845.5e5de3c5@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250113-net-mptcp-connect-st-flakes-v1-1-0d986ee7b1b6@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mptcp/options.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/net/mptcp/options.c
+++ b/net/mptcp/options.c
@@ -607,7 +607,6 @@ static bool mptcp_established_options_ds
 	}
 	opts->ext_copy.use_ack = 1;
 	opts->suboptions = OPTION_MPTCP_DSS;
-	WRITE_ONCE(msk->old_wspace, __mptcp_space((struct sock *)msk));
 
 	/* Add kind/length/subtype/flag overhead if mapping is not populated */
 	if (dss_size == 0)
@@ -1288,7 +1287,7 @@ static void mptcp_set_rwin(struct tcp_so
 			}
 			MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_RCVWNDCONFLICT);
 		}
-		return;
+		goto update_wspace;
 	}
 
 	if (rcv_wnd_new != rcv_wnd_old) {
@@ -1313,6 +1312,9 @@ raise_win:
 		th->window = htons(new_win);
 		MPTCP_INC_STATS(sock_net(ssk), MPTCP_MIB_RCVWNDSHARED);
 	}
+
+update_wspace:
+	WRITE_ONCE(msk->old_wspace, tp->rcv_wnd);
 }
 
 __sum16 __mptcp_make_csum(u64 data_seq, u32 subflow_seq, u16 data_len, __wsum sum)

[PATCH 6.12 081/122] mptcp: fix spurious wake-up on under memory pressure

[Greg Kroah-Hartman]

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

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

From: Paolo Abeni <pabeni@redhat.com>

commit e226d9259dc4f5d2c19e6682ad1356fa97cf38f4 upstream.

The wake-up condition currently implemented by mptcp_epollin_ready()
is wrong, as it could mark the MPTCP socket as readable even when
no data are present and the system is under memory pressure.

Explicitly check for some data being available in the receive queue.

Fixes: 5684ab1a0eff ("mptcp: give rcvlowat some love")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250113-net-mptcp-connect-st-flakes-v1-2-0d986ee7b1b6@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/mptcp/protocol.h |    9 +++++++--
 1 file changed, 7 insertions(+), 2 deletions(-)

--- a/net/mptcp/protocol.h
+++ b/net/mptcp/protocol.h
@@ -760,10 +760,15 @@ static inline u64 mptcp_data_avail(const
 
 static inline bool mptcp_epollin_ready(const struct sock *sk)
 {
+	u64 data_avail = mptcp_data_avail(mptcp_sk(sk));
+
+	if (!data_avail)
+		return false;
+
 	/* mptcp doesn't have to deal with small skbs in the receive queue,
-	 * at it can always coalesce them
+	 * as it can always coalesce them
 	 */
-	return (mptcp_data_avail(mptcp_sk(sk)) >= sk->sk_rcvlowat) ||
+	return (data_avail >= sk->sk_rcvlowat) ||
 	       (mem_cgroup_sockets_enabled && sk->sk_memcg &&
 		mem_cgroup_under_socket_pressure(sk->sk_memcg)) ||
 	       READ_ONCE(tcp_memory_pressure);

[PATCH 6.12 082/122] selftests: mptcp: avoid spurious errors on disconnect

[Greg Kroah-Hartman]

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

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

From: Paolo Abeni <pabeni@redhat.com>

commit 218cc166321fb3cc8786677ffe0d09a78778a910 upstream.

The disconnect test-case generates spurious errors:

  INFO: disconnect
  INFO: extra options: -I 3 -i /tmp/tmp.r43niviyoI
  01 ns1 MPTCP -> ns1 (10.0.1.1:10000      ) MPTCP (duration 140ms) [FAIL]
  file received by server does not match (in, out):
  Unexpected revents: POLLERR/POLLNVAL(19)
  -rw-r--r-- 1 root root 10028676 Jan 10 10:47 /tmp/tmp.r43niviyoI.disconnect
  Trailing bytes are:
  ��\����R���!8��u2��5N%
  -rw------- 1 root root 9992290 Jan 10 10:47 /tmp/tmp.Os4UbnWbI1
  Trailing bytes are:
  ��\����R���!8��u2��5N%
  02 ns1 MPTCP -> ns1 (dead:beef:1::1:10001) MPTCP (duration 206ms) [ OK ]
  03 ns1 MPTCP -> ns1 (dead:beef:1::1:10002) TCP   (duration  31ms) [ OK ]
  04 ns1 TCP   -> ns1 (dead:beef:1::1:10003) MPTCP (duration  26ms) [ OK ]
  [FAIL] Tests of the full disconnection have failed
  Time: 2 seconds

The root cause is actually in the user-space bits: the test program
currently disconnects as soon as all the pending data has been spooled,
generating an FASTCLOSE. If such option reaches the peer before the
latter has reached the closed status, the msk socket will report an
error to the user-space, as per protocol specification, causing the
above failure.

Address the issue explicitly waiting for all the relevant sockets to
reach a closed status before performing the disconnect.

Fixes: 05be5e273c84 ("selftests: mptcp: add disconnect tests")
Cc: stable@vger.kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20250113-net-mptcp-connect-st-flakes-v1-3-0d986ee7b1b6@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/net/mptcp/mptcp_connect.c |   43 ++++++++++++++++------
 1 file changed, 32 insertions(+), 11 deletions(-)

--- a/tools/testing/selftests/net/mptcp/mptcp_connect.c
+++ b/tools/testing/selftests/net/mptcp/mptcp_connect.c
@@ -25,6 +25,8 @@
 #include <sys/types.h>
 #include <sys/mman.h>
 
+#include <arpa/inet.h>
+
 #include <netdb.h>
 #include <netinet/in.h>
 
@@ -1211,23 +1213,42 @@ static void parse_setsock_options(const
 	exit(1);
 }
 
-void xdisconnect(int fd, int addrlen)
+void xdisconnect(int fd)
 {
-	struct sockaddr_storage empty;
+	socklen_t addrlen = sizeof(struct sockaddr_storage);
+	struct sockaddr_storage addr, empty;
 	int msec_sleep = 10;
-	int queued = 1;
-	int i;
+	void *raw_addr;
+	int i, cmdlen;
+	char cmd[128];
+
+	/* get the local address and convert it to string */
+	if (getsockname(fd, (struct sockaddr *)&addr, &addrlen) < 0)
+		xerror("getsockname");
+
+	if (addr.ss_family == AF_INET)
+		raw_addr = &(((struct sockaddr_in *)&addr)->sin_addr);
+	else if (addr.ss_family == AF_INET6)
+		raw_addr = &(((struct sockaddr_in6 *)&addr)->sin6_addr);
+	else
+		xerror("bad family");
+
+	strcpy(cmd, "ss -M | grep -q ");
+	cmdlen = strlen(cmd);
+	if (!inet_ntop(addr.ss_family, raw_addr, &cmd[cmdlen],
+		       sizeof(cmd) - cmdlen))
+		xerror("inet_ntop");
 
 	shutdown(fd, SHUT_WR);
 
-	/* while until the pending data is completely flushed, the later
+	/*
+	 * wait until the pending data is completely flushed and all
+	 * the MPTCP sockets reached the closed status.
 	 * disconnect will bypass/ignore/drop any pending data.
 	 */
 	for (i = 0; ; i += msec_sleep) {
-		if (ioctl(fd, SIOCOUTQ, &queued) < 0)
-			xerror("can't query out socket queue: %d", errno);
-
-		if (!queued)
+		/* closed socket are not listed by 'ss' */
+		if (system(cmd) != 0)
 			break;
 
 		if (i > poll_timeout)
@@ -1281,9 +1302,9 @@ again:
 		return ret;
 
 	if (cfg_truncate > 0) {
-		xdisconnect(fd, peer->ai_addrlen);
+		xdisconnect(fd);
 	} else if (--cfg_repeat > 0) {
-		xdisconnect(fd, peer->ai_addrlen);
+		xdisconnect(fd);
 
 		/* the socket could be unblocking at this point, we need the
 		 * connect to be blocking

[PATCH 6.12 083/122] net: ethernet: xgbe: re-add aneg to supported features in PHY quirks

[Greg Kroah-Hartman]

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

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

From: Heiner Kallweit <hkallweit1@gmail.com>

commit 6be7aca91009865d8c2b73589270224a6b6e67ab upstream.

In 4.19, before the switch to linkmode bitmaps, PHY_GBIT_FEATURES
included feature bits for aneg and TP/MII ports.

				 SUPPORTED_TP | \
				 SUPPORTED_MII)

				 SUPPORTED_10baseT_Full)

				 SUPPORTED_100baseT_Full)

				 SUPPORTED_1000baseT_Full)

				 PHY_100BT_FEATURES | \
				 PHY_DEFAULT_FEATURES)

				 PHY_1000BT_FEATURES)

Referenced commit expanded PHY_GBIT_FEATURES, silently removing
PHY_DEFAULT_FEATURES. The removed part can be re-added by using
the new PHY_GBIT_FEATURES definition.
Not clear to me is why nobody seems to have noticed this issue.

I stumbled across this when checking what it takes to make
phy_10_100_features_array et al private to phylib.

Fixes: d0939c26c53a ("net: ethernet: xgbe: expand PHY_GBIT_FEAUTRES")
Cc: stable@vger.kernel.org
Signed-off-by: Heiner Kallweit <hkallweit1@gmail.com>
Link: https://patch.msgid.link/46521973-7738-4157-9f5e-0bb6f694acba@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c |   19 ++-----------------
 1 file changed, 2 insertions(+), 17 deletions(-)

--- a/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
+++ b/drivers/net/ethernet/amd/xgbe/xgbe-phy-v2.c
@@ -923,7 +923,6 @@ static void xgbe_phy_free_phy_device(str
 
 static bool xgbe_phy_finisar_phy_quirks(struct xgbe_prv_data *pdata)
 {
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, };
 	struct xgbe_phy_data *phy_data = pdata->phy_data;
 	unsigned int phy_id = phy_data->phydev->phy_id;
 
@@ -945,14 +944,7 @@ static bool xgbe_phy_finisar_phy_quirks(
 	phy_write(phy_data->phydev, 0x04, 0x0d01);
 	phy_write(phy_data->phydev, 0x00, 0x9140);
 
-	linkmode_set_bit_array(phy_10_100_features_array,
-			       ARRAY_SIZE(phy_10_100_features_array),
-			       supported);
-	linkmode_set_bit_array(phy_gbit_features_array,
-			       ARRAY_SIZE(phy_gbit_features_array),
-			       supported);
-
-	linkmode_copy(phy_data->phydev->supported, supported);
+	linkmode_copy(phy_data->phydev->supported, PHY_GBIT_FEATURES);
 
 	phy_support_asym_pause(phy_data->phydev);
 
@@ -964,7 +956,6 @@ static bool xgbe_phy_finisar_phy_quirks(
 
 static bool xgbe_phy_belfuse_phy_quirks(struct xgbe_prv_data *pdata)
 {
-	__ETHTOOL_DECLARE_LINK_MODE_MASK(supported) = { 0, };
 	struct xgbe_phy_data *phy_data = pdata->phy_data;
 	struct xgbe_sfp_eeprom *sfp_eeprom = &phy_data->sfp_eeprom;
 	unsigned int phy_id = phy_data->phydev->phy_id;
@@ -1028,13 +1019,7 @@ static bool xgbe_phy_belfuse_phy_quirks(
 	reg = phy_read(phy_data->phydev, 0x00);
 	phy_write(phy_data->phydev, 0x00, reg & ~0x00800);
 
-	linkmode_set_bit_array(phy_10_100_features_array,
-			       ARRAY_SIZE(phy_10_100_features_array),
-			       supported);
-	linkmode_set_bit_array(phy_gbit_features_array,
-			       ARRAY_SIZE(phy_gbit_features_array),
-			       supported);
-	linkmode_copy(phy_data->phydev->supported, supported);
+	linkmode_copy(phy_data->phydev->supported, PHY_GBIT_FEATURES);
 	phy_support_asym_pause(phy_data->phydev);
 
 	netif_dbg(pdata, drv, pdata->netdev,

[PATCH 6.12 084/122] vsock/bpf: return early if transport is not assigned

[Greg Kroah-Hartman]

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

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

From: Stefano Garzarella <sgarzare@redhat.com>

commit f6abafcd32f9cfc4b1a2f820ecea70773e26d423 upstream.

Some of the core functions can only be called if the transport
has been assigned.

As Michal reported, a socket might have the transport at NULL,
for example after a failed connect(), causing the following trace:

    BUG: kernel NULL pointer dereference, address: 00000000000000a0
    #PF: supervisor read access in kernel mode
    #PF: error_code(0x0000) - not-present page
    PGD 12faf8067 P4D 12faf8067 PUD 113670067 PMD 0
    Oops: Oops: 0000 [#1] PREEMPT SMP NOPTI
    CPU: 15 UID: 0 PID: 1198 Comm: a.out Not tainted 6.13.0-rc2+
    RIP: 0010:vsock_connectible_has_data+0x1f/0x40
    Call Trace:
     vsock_bpf_recvmsg+0xca/0x5e0
     sock_recvmsg+0xb9/0xc0
     __sys_recvfrom+0xb3/0x130
     __x64_sys_recvfrom+0x20/0x30
     do_syscall_64+0x93/0x180
     entry_SYSCALL_64_after_hwframe+0x76/0x7e

So we need to check the `vsk->transport` in vsock_bpf_recvmsg(),
especially for connected sockets (stream/seqpacket) as we already
do in __vsock_connectible_recvmsg().

Fixes: 634f1a7110b4 ("vsock: support sockmap")
Cc: stable@vger.kernel.org
Reported-by: Michal Luczaj <mhal@rbox.co>
Closes: https://lore.kernel.org/netdev/5ca20d4c-1017-49c2-9516-f6f75fd331e9@rbox.co/
Tested-by: Michal Luczaj <mhal@rbox.co>
Reported-by: syzbot+3affdbfc986ecd9200fd@syzkaller.appspotmail.com
Closes: https://lore.kernel.org/netdev/677f84a8.050a0220.25a300.01b3.GAE@google.com/
Tested-by: syzbot+3affdbfc986ecd9200fd@syzkaller.appspotmail.com
Reviewed-by: Hyunwoo Kim <v4bel@theori.io>
Acked-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/vmw_vsock/vsock_bpf.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/net/vmw_vsock/vsock_bpf.c
+++ b/net/vmw_vsock/vsock_bpf.c
@@ -77,6 +77,7 @@ static int vsock_bpf_recvmsg(struct sock
 			     size_t len, int flags, int *addr_len)
 {
 	struct sk_psock *psock;
+	struct vsock_sock *vsk;
 	int copied;
 
 	psock = sk_psock_get(sk);
@@ -84,6 +85,13 @@ static int vsock_bpf_recvmsg(struct sock
 		return __vsock_recvmsg(sk, msg, len, flags);
 
 	lock_sock(sk);
+	vsk = vsock_sk(sk);
+
+	if (!vsk->transport) {
+		copied = -ENODEV;
+		goto out;
+	}
+
 	if (vsock_has_data(sk, psock) && sk_psock_queue_empty(psock)) {
 		release_sock(sk);
 		sk_psock_put(sk, psock);
@@ -108,6 +116,7 @@ static int vsock_bpf_recvmsg(struct sock
 		copied = sk_msg_recvmsg(sk, psock, msg, len, flags);
 	}
 
+out:
 	release_sock(sk);
 	sk_psock_put(sk, psock);
 

[PATCH 6.12 085/122] vsock/virtio: discard packets if the transport changes

[Greg Kroah-Hartman]

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

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

From: Stefano Garzarella <sgarzare@redhat.com>

commit 2cb7c756f605ec02ffe562fb26828e4bcc5fdfc1 upstream.

If the socket has been de-assigned or assigned to another transport,
we must discard any packets received because they are not expected
and would cause issues when we access vsk->transport.

A possible scenario is described by Hyunwoo Kim in the attached link,
where after a first connect() interrupted by a signal, and a second
connect() failed, we can find `vsk->transport` at NULL, leading to a
NULL pointer dereference.

Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Cc: stable@vger.kernel.org
Reported-by: Hyunwoo Kim <v4bel@theori.io>
Reported-by: Wongi Lee <qwerty@theori.io>
Closes: https://lore.kernel.org/netdev/Z2LvdTTQR7dBmPb5@v4bel-B760M-AORUS-ELITE-AX/
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/vmw_vsock/virtio_transport_common.c |    7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -1628,8 +1628,11 @@ void virtio_transport_recv_pkt(struct vi
 
 	lock_sock(sk);
 
-	/* Check if sk has been closed before lock_sock */
-	if (sock_flag(sk, SOCK_DONE)) {
+	/* Check if sk has been closed or assigned to another transport before
+	 * lock_sock (note: listener sockets are not assigned to any transport)
+	 */
+	if (sock_flag(sk, SOCK_DONE) ||
+	    (sk->sk_state != TCP_LISTEN && vsk->transport != &t->transport)) {
 		(void)virtio_transport_reset_no_sock(t, skb);
 		release_sock(sk);
 		sock_put(sk);

[PATCH 6.12 086/122] vsock/virtio: cancel close work in the destructor

[Greg Kroah-Hartman]

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

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

From: Stefano Garzarella <sgarzare@redhat.com>

commit df137da9d6d166e87e40980e36eb8e0bc90483ef upstream.

During virtio_transport_release() we can schedule a delayed work to
perform the closing of the socket before destruction.

The destructor is called either when the socket is really destroyed
(reference counter to zero), or it can also be called when we are
de-assigning the transport.

In the former case, we are sure the delayed work has completed, because
it holds a reference until it completes, so the destructor will
definitely be called after the delayed work is finished.
But in the latter case, the destructor is called by AF_VSOCK core, just
after the release(), so there may still be delayed work scheduled.

Refactor the code, moving the code to delete the close work already in
the do_close() to a new function. Invoke it during destruction to make
sure we don't leave any pending work.

Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Cc: stable@vger.kernel.org
Reported-by: Hyunwoo Kim <v4bel@theori.io>
Closes: https://lore.kernel.org/netdev/Z37Sh+utS+iV3+eb@v4bel-B760M-AORUS-ELITE-AX/
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Tested-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/vmw_vsock/virtio_transport_common.c |   29 +++++++++++++++++++++--------
 1 file changed, 21 insertions(+), 8 deletions(-)

--- a/net/vmw_vsock/virtio_transport_common.c
+++ b/net/vmw_vsock/virtio_transport_common.c
@@ -26,6 +26,9 @@
 /* Threshold for detecting small packets to copy */
 #define GOOD_COPY_LEN  128
 
+static void virtio_transport_cancel_close_work(struct vsock_sock *vsk,
+					       bool cancel_timeout);
+
 static const struct virtio_transport *
 virtio_transport_get_ops(struct vsock_sock *vsk)
 {
@@ -1109,6 +1112,8 @@ void virtio_transport_destruct(struct vs
 {
 	struct virtio_vsock_sock *vvs = vsk->trans;
 
+	virtio_transport_cancel_close_work(vsk, true);
+
 	kfree(vvs);
 	vsk->trans = NULL;
 }
@@ -1204,17 +1209,11 @@ static void virtio_transport_wait_close(
 	}
 }
 
-static void virtio_transport_do_close(struct vsock_sock *vsk,
-				      bool cancel_timeout)
+static void virtio_transport_cancel_close_work(struct vsock_sock *vsk,
+					       bool cancel_timeout)
 {
 	struct sock *sk = sk_vsock(vsk);
 
-	sock_set_flag(sk, SOCK_DONE);
-	vsk->peer_shutdown = SHUTDOWN_MASK;
-	if (vsock_stream_has_data(vsk) <= 0)
-		sk->sk_state = TCP_CLOSING;
-	sk->sk_state_change(sk);
-
 	if (vsk->close_work_scheduled &&
 	    (!cancel_timeout || cancel_delayed_work(&vsk->close_work))) {
 		vsk->close_work_scheduled = false;
@@ -1226,6 +1225,20 @@ static void virtio_transport_do_close(st
 	}
 }
 
+static void virtio_transport_do_close(struct vsock_sock *vsk,
+				      bool cancel_timeout)
+{
+	struct sock *sk = sk_vsock(vsk);
+
+	sock_set_flag(sk, SOCK_DONE);
+	vsk->peer_shutdown = SHUTDOWN_MASK;
+	if (vsock_stream_has_data(vsk) <= 0)
+		sk->sk_state = TCP_CLOSING;
+	sk->sk_state_change(sk);
+
+	virtio_transport_cancel_close_work(vsk, cancel_timeout);
+}
+
 static void virtio_transport_close_timeout(struct work_struct *work)
 {
 	struct vsock_sock *vsk =

[PATCH 6.12 087/122] vsock: reset socket state when de-assigning the transport

[Greg Kroah-Hartman]

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

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

From: Stefano Garzarella <sgarzare@redhat.com>

commit a24009bc9be60242651a21702609381b5092459e upstream.

Transport's release() and destruct() are called when de-assigning the
vsock transport. These callbacks can touch some socket state like
sock flags, sk_state, and peer_shutdown.

Since we are reassigning the socket to a new transport during
vsock_connect(), let's reset these fields to have a clean state with
the new transport.

Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Cc: stable@vger.kernel.org
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/vmw_vsock/af_vsock.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -491,6 +491,15 @@ int vsock_assign_transport(struct vsock_
 		 */
 		vsk->transport->release(vsk);
 		vsock_deassign_transport(vsk);
+
+		/* transport's release() and destruct() can touch some socket
+		 * state, since we are reassigning the socket to a new transport
+		 * during vsock_connect(), let's reset these fields to have a
+		 * clean state.
+		 */
+		sock_reset_flag(sk, SOCK_DONE);
+		sk->sk_state = TCP_CLOSE;
+		vsk->peer_shutdown = 0;
 	}
 
 	/* We increase the module refcnt to prevent the transport unloading

[PATCH 6.12 088/122] vsock: prevent null-ptr-deref in vsock_*[has_data|has_space]

[Greg Kroah-Hartman]

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

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

From: Stefano Garzarella <sgarzare@redhat.com>

commit 91751e248256efc111e52e15115840c35d85abaf upstream.

Recent reports have shown how we sometimes call vsock_*_has_data()
when a vsock socket has been de-assigned from a transport (see attached
links), but we shouldn't.

Previous commits should have solved the real problems, but we may have
more in the future, so to avoid null-ptr-deref, we can return 0
(no space, no data available) but with a warning.

This way the code should continue to run in a nearly consistent state
and have a warning that allows us to debug future problems.

Fixes: c0cfa2d8a788 ("vsock: add multi-transports support")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/netdev/Z2K%2FI4nlHdfMRTZC@v4bel-B760M-AORUS-ELITE-AX/
Link: https://lore.kernel.org/netdev/5ca20d4c-1017-49c2-9516-f6f75fd331e9@rbox.co/
Link: https://lore.kernel.org/netdev/677f84a8.050a0220.25a300.01b3.GAE@google.com/
Co-developed-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Hyunwoo Kim <v4bel@theori.io>
Co-developed-by: Wongi Lee <qwerty@theori.io>
Signed-off-by: Wongi Lee <qwerty@theori.io>
Signed-off-by: Stefano Garzarella <sgarzare@redhat.com>
Reviewed-by: Luigi Leonardi <leonardi@redhat.com>
Reviewed-by: Hyunwoo Kim <v4bel@theori.io>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/vmw_vsock/af_vsock.c |    9 +++++++++
 1 file changed, 9 insertions(+)

--- a/net/vmw_vsock/af_vsock.c
+++ b/net/vmw_vsock/af_vsock.c
@@ -879,6 +879,9 @@ EXPORT_SYMBOL_GPL(vsock_create_connected
 
 s64 vsock_stream_has_data(struct vsock_sock *vsk)
 {
+	if (WARN_ON(!vsk->transport))
+		return 0;
+
 	return vsk->transport->stream_has_data(vsk);
 }
 EXPORT_SYMBOL_GPL(vsock_stream_has_data);
@@ -887,6 +890,9 @@ s64 vsock_connectible_has_data(struct vs
 {
 	struct sock *sk = sk_vsock(vsk);
 
+	if (WARN_ON(!vsk->transport))
+		return 0;
+
 	if (sk->sk_type == SOCK_SEQPACKET)
 		return vsk->transport->seqpacket_has_data(vsk);
 	else
@@ -896,6 +902,9 @@ EXPORT_SYMBOL_GPL(vsock_connectible_has_
 
 s64 vsock_stream_has_space(struct vsock_sock *vsk)
 {
+	if (WARN_ON(!vsk->transport))
+		return 0;
+
 	return vsk->transport->stream_has_space(vsk);
 }
 EXPORT_SYMBOL_GPL(vsock_stream_has_space);

[PATCH 6.12 089/122] nouveau/fence: handle cross device fences properly

[Greg Kroah-Hartman]

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

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

From: Dave Airlie <airlied@redhat.com>

commit 1f9910b41c857a892b83801feebdc7bdf38c5985 upstream.

The fence sync logic doesn't handle a fence sync across devices
as it tries to write to a channel offset from one device into
the fence bo from a different device, which won't work so well.

This patch fixes that to avoid using the sync path in the case
where the fences come from different nouveau drm devices.

This works fine on a single device as the fence bo is shared
across the devices, and mapped into each channels vma space,
the channel offsets are therefore okay to pass between sides,
so one channel can sync on the seqnos from the other by using
the offset into it's vma.

Signed-off-by: Dave Airlie <airlied@redhat.com>
Cc: stable@vger.kernel.org
Reviewed-by: Ben Skeggs <bskeggs@nvidia.com>
[ Fix compilation issue; remove version log from commit messsage.
  - Danilo ]
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250109005553.623947-1-airlied@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nouveau_fence.c |    6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/nouveau/nouveau_fence.c
+++ b/drivers/gpu/drm/nouveau/nouveau_fence.c
@@ -387,11 +387,13 @@ nouveau_fence_sync(struct nouveau_bo *nv
 			if (f) {
 				struct nouveau_channel *prev;
 				bool must_wait = true;
+				bool local;
 
 				rcu_read_lock();
 				prev = rcu_dereference(f->channel);
-				if (prev && (prev == chan ||
-					     fctx->sync(f, prev, chan) == 0))
+				local = prev && prev->cli->drm == chan->cli->drm;
+				if (local && (prev == chan ||
+					      fctx->sync(f, prev, chan) == 0))
 					must_wait = false;
 				rcu_read_unlock();
 				if (!must_wait)

[PATCH 6.12 090/122] drm/nouveau/disp: Fix missing backlight control on Macbook 5,1

[Greg Kroah-Hartman]

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

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

From: Takashi Iwai <tiwai@suse.de>

commit 35243fc777566ccb3370e175cf591fea0f81f68c upstream.

Macbook 5,1 with MCP79 lost its backlight control since the recent
change for supporting GSP-RM; it rewrote the whole nv50 backlight
control code and each display engine is supposed to have an entry for
IOR bl callback, but it didn't cover mcp77.

This patch adds the missing bl entry initialization for mcp77 display
engine to recover the backlight control.

Fixes: 2274ce7e3681 ("drm/nouveau/disp: add output backlight control methods")
Cc: stable@vger.kernel.org
Link: https://bugzilla.suse.com/show_bug.cgi?id=1223838
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
Link: https://patchwork.freedesktop.org/patch/msgid/20250102114944.11499-1-tiwai@suse.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c
+++ b/drivers/gpu/drm/nouveau/nvkm/engine/disp/mcp77.c
@@ -31,6 +31,7 @@ mcp77_sor = {
 	.state = g94_sor_state,
 	.power = nv50_sor_power,
 	.clock = nv50_sor_clock,
+	.bl = &nv50_sor_bl,
 	.hdmi = &g84_sor_hdmi,
 	.dp = &g94_sor_dp,
 };

[PATCH 6.12 091/122] net/ncsi: fix locking in Get MAC Address handling

[Greg Kroah-Hartman]

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

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

From: Paul Fertser <fercerpav@gmail.com>

commit 9e2bbab94b88295dcc57c7580393c9ee08d7314d upstream.

Obtaining RTNL lock in a response handler is not allowed since it runs
in an atomic softirq context. Postpone setting the MAC address by adding
a dedicated step to the configuration FSM.

Fixes: 790071347a0a ("net/ncsi: change from ndo_set_mac_address to dev_set_mac_address")
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/20241129-potin-revert-ncsi-set-mac-addr-v1-1-94ea2cb596af@gmail.com
Signed-off-by: Paul Fertser <fercerpav@gmail.com>
Tested-by: Potin Lai <potin.lai.pt@gmail.com>
Link: https://patch.msgid.link/20250109145054.30925-1-fercerpav@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 net/ncsi/internal.h    |    2 ++
 net/ncsi/ncsi-manage.c |   16 ++++++++++++++--
 net/ncsi/ncsi-rsp.c    |   19 ++++++-------------
 3 files changed, 22 insertions(+), 15 deletions(-)

--- a/net/ncsi/internal.h
+++ b/net/ncsi/internal.h
@@ -289,6 +289,7 @@ enum {
 	ncsi_dev_state_config_sp	= 0x0301,
 	ncsi_dev_state_config_cis,
 	ncsi_dev_state_config_oem_gma,
+	ncsi_dev_state_config_apply_mac,
 	ncsi_dev_state_config_clear_vids,
 	ncsi_dev_state_config_svf,
 	ncsi_dev_state_config_ev,
@@ -322,6 +323,7 @@ struct ncsi_dev_priv {
 #define NCSI_DEV_RESHUFFLE	4
 #define NCSI_DEV_RESET		8            /* Reset state of NC          */
 	unsigned int        gma_flag;        /* OEM GMA flag               */
+	struct sockaddr     pending_mac;     /* MAC address received from GMA */
 	spinlock_t          lock;            /* Protect the NCSI device    */
 	unsigned int        package_probe_id;/* Current ID during probe    */
 	unsigned int        package_num;     /* Number of packages         */
--- a/net/ncsi/ncsi-manage.c
+++ b/net/ncsi/ncsi-manage.c
@@ -1038,7 +1038,7 @@ static void ncsi_configure_channel(struc
 			  : ncsi_dev_state_config_clear_vids;
 		break;
 	case ncsi_dev_state_config_oem_gma:
-		nd->state = ncsi_dev_state_config_clear_vids;
+		nd->state = ncsi_dev_state_config_apply_mac;
 
 		nca.package = np->id;
 		nca.channel = nc->id;
@@ -1050,10 +1050,22 @@ static void ncsi_configure_channel(struc
 			nca.type = NCSI_PKT_CMD_OEM;
 			ret = ncsi_gma_handler(&nca, nc->version.mf_id);
 		}
-		if (ret < 0)
+		if (ret < 0) {
+			nd->state = ncsi_dev_state_config_clear_vids;
 			schedule_work(&ndp->work);
+		}
 
 		break;
+	case ncsi_dev_state_config_apply_mac:
+		rtnl_lock();
+		ret = dev_set_mac_address(dev, &ndp->pending_mac, NULL);
+		rtnl_unlock();
+		if (ret < 0)
+			netdev_warn(dev, "NCSI: 'Writing MAC address to device failed\n");
+
+		nd->state = ncsi_dev_state_config_clear_vids;
+
+		fallthrough;
 	case ncsi_dev_state_config_clear_vids:
 	case ncsi_dev_state_config_svf:
 	case ncsi_dev_state_config_ev:
--- a/net/ncsi/ncsi-rsp.c
+++ b/net/ncsi/ncsi-rsp.c
@@ -628,16 +628,14 @@ static int ncsi_rsp_handler_snfc(struct
 static int ncsi_rsp_handler_oem_gma(struct ncsi_request *nr, int mfr_id)
 {
 	struct ncsi_dev_priv *ndp = nr->ndp;
+	struct sockaddr *saddr = &ndp->pending_mac;
 	struct net_device *ndev = ndp->ndev.dev;
 	struct ncsi_rsp_oem_pkt *rsp;
-	struct sockaddr saddr;
 	u32 mac_addr_off = 0;
-	int ret = 0;
 
 	/* Get the response header */
 	rsp = (struct ncsi_rsp_oem_pkt *)skb_network_header(nr->rsp);
 
-	saddr.sa_family = ndev->type;
 	ndev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
 	if (mfr_id == NCSI_OEM_MFR_BCM_ID)
 		mac_addr_off = BCM_MAC_ADDR_OFFSET;
@@ -646,22 +644,17 @@ static int ncsi_rsp_handler_oem_gma(stru
 	else if (mfr_id == NCSI_OEM_MFR_INTEL_ID)
 		mac_addr_off = INTEL_MAC_ADDR_OFFSET;
 
-	memcpy(saddr.sa_data, &rsp->data[mac_addr_off], ETH_ALEN);
+	saddr->sa_family = ndev->type;
+	memcpy(saddr->sa_data, &rsp->data[mac_addr_off], ETH_ALEN);
 	if (mfr_id == NCSI_OEM_MFR_BCM_ID || mfr_id == NCSI_OEM_MFR_INTEL_ID)
-		eth_addr_inc((u8 *)saddr.sa_data);
-	if (!is_valid_ether_addr((const u8 *)saddr.sa_data))
+		eth_addr_inc((u8 *)saddr->sa_data);
+	if (!is_valid_ether_addr((const u8 *)saddr->sa_data))
 		return -ENXIO;
 
 	/* Set the flag for GMA command which should only be called once */
 	ndp->gma_flag = 1;
 
-	rtnl_lock();
-	ret = dev_set_mac_address(ndev, &saddr, NULL);
-	rtnl_unlock();
-	if (ret < 0)
-		netdev_warn(ndev, "NCSI: 'Writing mac address to device failed\n");
-
-	return ret;
+	return 0;
 }
 
 /* Response handler for Mellanox card */

[PATCH 6.12 092/122] filemap: avoid truncating 64-bit offset to 32 bits

[Greg Kroah-Hartman]

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

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

From: Marco Nelissen <marco.nelissen@gmail.com>

commit f505e6c91e7a22d10316665a86d79f84d9f0ba76 upstream.

On 32-bit kernels, folio_seek_hole_data() was inadvertently truncating a
64-bit value to 32 bits, leading to a possible infinite loop when writing
to an xfs filesystem.

Link: https://lkml.kernel.org/r/20250102190540.1356838-1-marco.nelissen@gmail.com
Fixes: 54fa39ac2e00 ("iomap: use mapping_seek_hole_data")
Signed-off-by: Marco Nelissen <marco.nelissen@gmail.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/filemap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/filemap.c
+++ b/mm/filemap.c
@@ -3004,7 +3004,7 @@ static inline loff_t folio_seek_hole_dat
 		if (ops->is_partially_uptodate(folio, offset, bsz) ==
 							seek_data)
 			break;
-		start = (start + bsz) & ~(bsz - 1);
+		start = (start + bsz) & ~((u64)bsz - 1);
 		offset += bsz;
 	} while (offset < folio_size(folio));
 unlock:

[PATCH 6.12 093/122] fs/proc: fix softlockup in __read_vmcore (part 2)

[Greg Kroah-Hartman]

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

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

From: Rik van Riel <riel@surriel.com>

commit cbc5dde0a461240046e8a41c43d7c3b76d5db952 upstream.

Since commit 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore") the
number of softlockups in __read_vmcore at kdump time have gone down, but
they still happen sometimes.

In a memory constrained environment like the kdump image, a softlockup is
not just a harmless message, but it can interfere with things like RCU
freeing memory, causing the crashdump to get stuck.

The second loop in __read_vmcore has a lot more opportunities for natural
sleep points, like scheduling out while waiting for a data write to
happen, but apparently that is not always enough.

Add a cond_resched() to the second loop in __read_vmcore to (hopefully)
get rid of the softlockups.

Link: https://lkml.kernel.org/r/20250110102821.2a37581b@fangorn
Fixes: 5cbcb62dddf5 ("fs/proc: fix softlockup in __read_vmcore")
Signed-off-by: Rik van Riel <riel@surriel.com>
Reported-by: Breno Leitao <leitao@debian.org>
Cc: Baoquan He <bhe@redhat.com>
Cc: Dave Young <dyoung@redhat.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 fs/proc/vmcore.c |    2 ++
 1 file changed, 2 insertions(+)

--- a/fs/proc/vmcore.c
+++ b/fs/proc/vmcore.c
@@ -404,6 +404,8 @@ static ssize_t __read_vmcore(struct iov_
 			if (!iov_iter_count(iter))
 				return acc;
 		}
+
+		cond_resched();
 	}
 
 	return acc;

[PATCH 6.12 094/122] gpio: xilinx: Convert gpio_lock to raw spinlock

[Greg Kroah-Hartman]

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

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

From: Sean Anderson <sean.anderson@linux.dev>

commit 9860370c2172704b6b4f0075a0c2a29fd84af96a upstream.

irq_chip functions may be called in raw spinlock context. Therefore, we
must also use a raw spinlock for our own internal locking.

This fixes the following lockdep splat:

[    5.349336] =============================
[    5.353349] [ BUG: Invalid wait context ]
[    5.357361] 6.13.0-rc5+ #69 Tainted: G        W
[    5.363031] -----------------------------
[    5.367045] kworker/u17:1/44 is trying to lock:
[    5.371587] ffffff88018b02c0 (&chip->gpio_lock){....}-{3:3}, at: xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))
[    5.380079] other info that might help us debug this:
[    5.385138] context-{5:5}
[    5.387762] 5 locks held by kworker/u17:1/44:
[    5.392123] #0: ffffff8800014958 ((wq_completion)events_unbound){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3204)
[    5.402260] #1: ffffffc082fcbdd8 (deferred_probe_work){+.+.}-{0:0}, at: process_one_work (kernel/workqueue.c:3205)
[    5.411528] #2: ffffff880172c900 (&dev->mutex){....}-{4:4}, at: __device_attach (drivers/base/dd.c:1006)
[    5.419929] #3: ffffff88039c8268 (request_class#2){+.+.}-{4:4}, at: __setup_irq (kernel/irq/internals.h:156 kernel/irq/manage.c:1596)
[    5.428331] #4: ffffff88039c80c8 (lock_class#2){....}-{2:2}, at: __setup_irq (kernel/irq/manage.c:1614)
[    5.436472] stack backtrace:
[    5.439359] CPU: 2 UID: 0 PID: 44 Comm: kworker/u17:1 Tainted: G        W          6.13.0-rc5+ #69
[    5.448690] Tainted: [W]=WARN
[    5.451656] Hardware name: xlnx,zynqmp (DT)
[    5.455845] Workqueue: events_unbound deferred_probe_work_func
[    5.461699] Call trace:
[    5.464147] show_stack+0x18/0x24 C
[    5.467821] dump_stack_lvl (lib/dump_stack.c:123)
[    5.471501] dump_stack (lib/dump_stack.c:130)
[    5.474824] __lock_acquire (kernel/locking/lockdep.c:4828 kernel/locking/lockdep.c:4898 kernel/locking/lockdep.c:5176)
[    5.478758] lock_acquire (arch/arm64/include/asm/percpu.h:40 kernel/locking/lockdep.c:467 kernel/locking/lockdep.c:5851 kernel/locking/lockdep.c:5814)
[    5.482429] _raw_spin_lock_irqsave (include/linux/spinlock_api_smp.h:111 kernel/locking/spinlock.c:162)
[    5.486797] xgpio_irq_unmask (drivers/gpio/gpio-xilinx.c:433 (discriminator 8))
[    5.490737] irq_enable (kernel/irq/internals.h:236 kernel/irq/chip.c:170 kernel/irq/chip.c:439 kernel/irq/chip.c:432 kernel/irq/chip.c:345)
[    5.494060] __irq_startup (kernel/irq/internals.h:241 kernel/irq/chip.c:180 kernel/irq/chip.c:250)
[    5.497645] irq_startup (kernel/irq/chip.c:270)
[    5.501143] __setup_irq (kernel/irq/manage.c:1807)
[    5.504728] request_threaded_irq (kernel/irq/manage.c:2208)

Fixes: a32c7caea292 ("gpio: gpio-xilinx: Add interrupt support")
Signed-off-by: Sean Anderson <sean.anderson@linux.dev>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/r/20250110163354.2012654-1-sean.anderson@linux.dev
Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpio/gpio-xilinx.c |   32 ++++++++++++++++----------------
 1 file changed, 16 insertions(+), 16 deletions(-)

--- a/drivers/gpio/gpio-xilinx.c
+++ b/drivers/gpio/gpio-xilinx.c
@@ -65,7 +65,7 @@ struct xgpio_instance {
 	DECLARE_BITMAP(state, 64);
 	DECLARE_BITMAP(last_irq_read, 64);
 	DECLARE_BITMAP(dir, 64);
-	spinlock_t gpio_lock;	/* For serializing operations */
+	raw_spinlock_t gpio_lock;	/* For serializing operations */
 	int irq;
 	DECLARE_BITMAP(enable, 64);
 	DECLARE_BITMAP(rising_edge, 64);
@@ -179,14 +179,14 @@ static void xgpio_set(struct gpio_chip *
 	struct xgpio_instance *chip = gpiochip_get_data(gc);
 	int bit = xgpio_to_bit(chip, gpio);
 
-	spin_lock_irqsave(&chip->gpio_lock, flags);
+	raw_spin_lock_irqsave(&chip->gpio_lock, flags);
 
 	/* Write to GPIO signal and set its direction to output */
 	__assign_bit(bit, chip->state, val);
 
 	xgpio_write_ch(chip, XGPIO_DATA_OFFSET, bit, chip->state);
 
-	spin_unlock_irqrestore(&chip->gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&chip->gpio_lock, flags);
 }
 
 /**
@@ -210,7 +210,7 @@ static void xgpio_set_multiple(struct gp
 	bitmap_remap(hw_mask, mask, chip->sw_map, chip->hw_map, 64);
 	bitmap_remap(hw_bits, bits, chip->sw_map, chip->hw_map, 64);
 
-	spin_lock_irqsave(&chip->gpio_lock, flags);
+	raw_spin_lock_irqsave(&chip->gpio_lock, flags);
 
 	bitmap_replace(state, chip->state, hw_bits, hw_mask, 64);
 
@@ -218,7 +218,7 @@ static void xgpio_set_multiple(struct gp
 
 	bitmap_copy(chip->state, state, 64);
 
-	spin_unlock_irqrestore(&chip->gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&chip->gpio_lock, flags);
 }
 
 /**
@@ -236,13 +236,13 @@ static int xgpio_dir_in(struct gpio_chip
 	struct xgpio_instance *chip = gpiochip_get_data(gc);
 	int bit = xgpio_to_bit(chip, gpio);
 
-	spin_lock_irqsave(&chip->gpio_lock, flags);
+	raw_spin_lock_irqsave(&chip->gpio_lock, flags);
 
 	/* Set the GPIO bit in shadow register and set direction as input */
 	__set_bit(bit, chip->dir);
 	xgpio_write_ch(chip, XGPIO_TRI_OFFSET, bit, chip->dir);
 
-	spin_unlock_irqrestore(&chip->gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&chip->gpio_lock, flags);
 
 	return 0;
 }
@@ -265,7 +265,7 @@ static int xgpio_dir_out(struct gpio_chi
 	struct xgpio_instance *chip = gpiochip_get_data(gc);
 	int bit = xgpio_to_bit(chip, gpio);
 
-	spin_lock_irqsave(&chip->gpio_lock, flags);
+	raw_spin_lock_irqsave(&chip->gpio_lock, flags);
 
 	/* Write state of GPIO signal */
 	__assign_bit(bit, chip->state, val);
@@ -275,7 +275,7 @@ static int xgpio_dir_out(struct gpio_chi
 	__clear_bit(bit, chip->dir);
 	xgpio_write_ch(chip, XGPIO_TRI_OFFSET, bit, chip->dir);
 
-	spin_unlock_irqrestore(&chip->gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&chip->gpio_lock, flags);
 
 	return 0;
 }
@@ -398,7 +398,7 @@ static void xgpio_irq_mask(struct irq_da
 	int bit = xgpio_to_bit(chip, irq_offset);
 	u32 mask = BIT(bit / 32), temp;
 
-	spin_lock_irqsave(&chip->gpio_lock, flags);
+	raw_spin_lock_irqsave(&chip->gpio_lock, flags);
 
 	__clear_bit(bit, chip->enable);
 
@@ -408,7 +408,7 @@ static void xgpio_irq_mask(struct irq_da
 		temp &= ~mask;
 		xgpio_writereg(chip->regs + XGPIO_IPIER_OFFSET, temp);
 	}
-	spin_unlock_irqrestore(&chip->gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&chip->gpio_lock, flags);
 
 	gpiochip_disable_irq(&chip->gc, irq_offset);
 }
@@ -428,7 +428,7 @@ static void xgpio_irq_unmask(struct irq_
 
 	gpiochip_enable_irq(&chip->gc, irq_offset);
 
-	spin_lock_irqsave(&chip->gpio_lock, flags);
+	raw_spin_lock_irqsave(&chip->gpio_lock, flags);
 
 	__set_bit(bit, chip->enable);
 
@@ -447,7 +447,7 @@ static void xgpio_irq_unmask(struct irq_
 		xgpio_writereg(chip->regs + XGPIO_IPIER_OFFSET, val);
 	}
 
-	spin_unlock_irqrestore(&chip->gpio_lock, flags);
+	raw_spin_unlock_irqrestore(&chip->gpio_lock, flags);
 }
 
 /**
@@ -512,7 +512,7 @@ static void xgpio_irqhandler(struct irq_
 
 	chained_irq_enter(irqchip, desc);
 
-	spin_lock(&chip->gpio_lock);
+	raw_spin_lock(&chip->gpio_lock);
 
 	xgpio_read_ch_all(chip, XGPIO_DATA_OFFSET, all);
 
@@ -529,7 +529,7 @@ static void xgpio_irqhandler(struct irq_
 	bitmap_copy(chip->last_irq_read, all, 64);
 	bitmap_or(all, rising, falling, 64);
 
-	spin_unlock(&chip->gpio_lock);
+	raw_spin_unlock(&chip->gpio_lock);
 
 	dev_dbg(gc->parent, "IRQ rising %*pb falling %*pb\n", 64, rising, 64, falling);
 
@@ -620,7 +620,7 @@ static int xgpio_probe(struct platform_d
 	bitmap_set(chip->hw_map,  0, width[0]);
 	bitmap_set(chip->hw_map, 32, width[1]);
 
-	spin_lock_init(&chip->gpio_lock);
+	raw_spin_lock_init(&chip->gpio_lock);
 
 	chip->gc.base = -1;
 	chip->gc.ngpio = bitmap_weight(chip->hw_map, 64);

[PATCH 6.12 095/122] tools: fix atomic_set() definition to set the value correctly

[Greg Kroah-Hartman]

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

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

From: Suren Baghdasaryan <surenb@google.com>

commit 4bbb6df62c54e6a2c1fcce4908df768f0cfa1e91 upstream.

Currently vma test is failing because of the new vma_assert_attached()
assertion.  The check is failing because previous refcount_set() inside
vma_mark_attached() is a NoOp.  Fix the definition of atomic_set() to
correctly set the value of the atomic.

Link: https://lkml.kernel.org/r/20241227222220.1726384-1-surenb@google.com
Fixes: 9325b8b5a1cb ("tools: add skeleton code for userland testing of VMA logic")
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Reviewed-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Jann Horn <jannh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/shared/linux/maple_tree.h |    2 +-
 tools/testing/vma/linux/atomic.h        |    2 +-
 2 files changed, 2 insertions(+), 2 deletions(-)

--- a/tools/testing/shared/linux/maple_tree.h
+++ b/tools/testing/shared/linux/maple_tree.h
@@ -2,6 +2,6 @@
 #define atomic_t int32_t
 #define atomic_inc(x) uatomic_inc(x)
 #define atomic_read(x) uatomic_read(x)
-#define atomic_set(x, y) do {} while (0)
+#define atomic_set(x, y) uatomic_set(x, y)
 #define U8_MAX UCHAR_MAX
 #include "../../../../include/linux/maple_tree.h"
--- a/tools/testing/vma/linux/atomic.h
+++ b/tools/testing/vma/linux/atomic.h
@@ -6,7 +6,7 @@
 #define atomic_t int32_t
 #define atomic_inc(x) uatomic_inc(x)
 #define atomic_read(x) uatomic_read(x)
-#define atomic_set(x, y) do {} while (0)
+#define atomic_set(x, y) uatomic_set(x, y)
 #define U8_MAX UCHAR_MAX
 
 #endif	/* _LINUX_ATOMIC_H */

[PATCH 6.12 096/122] pmdomain: imx8mp-blk-ctrl: add missing loop break condition

[Greg Kroah-Hartman]

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

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

From: Xiaolei Wang <xiaolei.wang@windriver.com>

commit 726efa92e02b460811e8bc6990dd742f03b645ea upstream.

Currently imx8mp_blk_ctrl_remove() will continue the for loop
until an out-of-bounds exception occurs.

pstate: 60000005 (nZCv daif -PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : dev_pm_domain_detach+0x8/0x48
lr : imx8mp_blk_ctrl_shutdown+0x58/0x90
sp : ffffffc084f8bbf0
x29: ffffffc084f8bbf0 x28: ffffff80daf32ac0 x27: 0000000000000000
x26: ffffffc081658d78 x25: 0000000000000001 x24: ffffffc08201b028
x23: ffffff80d0db9490 x22: ffffffc082340a78 x21: 00000000000005b0
x20: ffffff80d19bc180 x19: 000000000000000a x18: ffffffffffffffff
x17: ffffffc080a39e08 x16: ffffffc080a39c98 x15: 4f435f464f006c72
x14: 0000000000000004 x13: ffffff80d0172110 x12: 0000000000000000
x11: ffffff80d0537740 x10: ffffff80d05376c0 x9 : ffffffc0808ed2d8
x8 : ffffffc084f8bab0 x7 : 0000000000000000 x6 : 0000000000000000
x5 : ffffff80d19b9420 x4 : fffffffe03466e60 x3 : 0000000080800077
x2 : 0000000000000000 x1 : 0000000000000001 x0 : 0000000000000000
Call trace:
 dev_pm_domain_detach+0x8/0x48
 platform_shutdown+0x2c/0x48
 device_shutdown+0x158/0x268
 kernel_restart_prepare+0x40/0x58
 kernel_kexec+0x58/0xe8
 __do_sys_reboot+0x198/0x258
 __arm64_sys_reboot+0x2c/0x40
 invoke_syscall+0x5c/0x138
 el0_svc_common.constprop.0+0x48/0xf0
 do_el0_svc+0x24/0x38
 el0_svc+0x38/0xc8
 el0t_64_sync_handler+0x120/0x130
 el0t_64_sync+0x190/0x198
Code: 8128c2d0 ffffffc0 aa1e03e9 d503201f

Fixes: 556f5cf9568a ("soc: imx: add i.MX8MP HSIO blk-ctrl")
Cc: stable@vger.kernel.org
Signed-off-by: Xiaolei Wang <xiaolei.wang@windriver.com>
Reviewed-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Fabio Estevam <festevam@gmail.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://lore.kernel.org/r/20250115014118.4086729-1-xiaolei.wang@windriver.com
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/pmdomain/imx/imx8mp-blk-ctrl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
+++ b/drivers/pmdomain/imx/imx8mp-blk-ctrl.c
@@ -770,7 +770,7 @@ static void imx8mp_blk_ctrl_remove(struc
 
 	of_genpd_del_provider(pdev->dev.of_node);
 
-	for (i = 0; bc->onecell_data.num_domains; i++) {
+	for (i = 0; i < bc->onecell_data.num_domains; i++) {
 		struct imx8mp_blk_ctrl_domain *domain = &bc->domains[i];
 
 		pm_genpd_remove(&domain->genpd);

[PATCH 6.12 097/122] mm/kmemleak: fix percpu memory leak detection failure

[Greg Kroah-Hartman]

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

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

From: Guo Weikang <guoweikang.kernel@gmail.com>

commit 76d5d4c53e68719c018691b19a961e78524a155c upstream.

kmemleak_alloc_percpu gives an incorrect min_count parameter, causing
percpu memory to be considered a gray object.

Link: https://lkml.kernel.org/r/20241227092311.3572500-1-guoweikang.kernel@gmail.com
Fixes: 8c8685928910 ("mm/kmemleak: use IS_ERR_PCPU() for pointer in the percpu address space")
Signed-off-by: Guo Weikang <guoweikang.kernel@gmail.com>
Acked-by: Uros Bizjak <ubizjak@gmail.com>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Cc: Guo Weikang <guoweikang.kernel@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/kmemleak.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/mm/kmemleak.c
+++ b/mm/kmemleak.c
@@ -1071,7 +1071,7 @@ void __ref kmemleak_alloc_percpu(const v
 	pr_debug("%s(0x%px, %zu)\n", __func__, ptr, size);
 
 	if (kmemleak_enabled && ptr && !IS_ERR_PCPU(ptr))
-		create_object_percpu((__force unsigned long)ptr, size, 0, gfp);
+		create_object_percpu((__force unsigned long)ptr, size, 1, gfp);
 }
 EXPORT_SYMBOL_GPL(kmemleak_alloc_percpu);
 

[PATCH 6.12 098/122] selftests/mm: set allocated memory to non-zero content in cow test

[Greg Kroah-Hartman]

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

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

From: Ryan Roberts <ryan.roberts@arm.com>

commit a32bf5bb7933fde6f39747499f8ec232b5b5400f upstream.

After commit b1f202060afe ("mm: remap unused subpages to shared zeropage
when splitting isolated thp"), cow test cases involving swapping out THPs
via madvise(MADV_PAGEOUT) started to be skipped due to the subsequent
check via pagemap determining that the memory was not actually swapped
out.  Logs similar to this were emitted:

   ...

   # [RUN] Basic COW after fork() ... with swapped-out, PTE-mapped THP (16 kB)
   ok 2 # SKIP MADV_PAGEOUT did not work, is swap enabled?
   # [RUN] Basic COW after fork() ... with single PTE of swapped-out THP (16 kB)
   ok 3 # SKIP MADV_PAGEOUT did not work, is swap enabled?
   # [RUN] Basic COW after fork() ... with swapped-out, PTE-mapped THP (32 kB)
   ok 4 # SKIP MADV_PAGEOUT did not work, is swap enabled?

   ...

The commit in question introduces the behaviour of scanning THPs and if
their content is predominantly zero, it splits them and replaces the pages
which are wholly zero with the zero page.  These cow test cases were
getting caught up in this.

So let's avoid that by filling the contents of all allocated memory with
a non-zero value. With this in place, the tests are passing again.

Link: https://lkml.kernel.org/r/20250107142555.1870101-1-ryan.roberts@arm.com
Fixes: b1f202060afe ("mm: remap unused subpages to shared zeropage when splitting isolated thp")
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Acked-by: David Hildenbrand <david@redhat.com>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Yu Zhao <yuzhao@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 tools/testing/selftests/mm/cow.c |    8 ++++----
 1 file changed, 4 insertions(+), 4 deletions(-)

--- a/tools/testing/selftests/mm/cow.c
+++ b/tools/testing/selftests/mm/cow.c
@@ -758,7 +758,7 @@ static void do_run_with_base_page(test_f
 	}
 
 	/* Populate a base page. */
-	memset(mem, 0, pagesize);
+	memset(mem, 1, pagesize);
 
 	if (swapout) {
 		madvise(mem, pagesize, MADV_PAGEOUT);
@@ -824,12 +824,12 @@ static void do_run_with_thp(test_fn fn,
 	 * Try to populate a THP. Touch the first sub-page and test if
 	 * we get the last sub-page populated automatically.
 	 */
-	mem[0] = 0;
+	mem[0] = 1;
 	if (!pagemap_is_populated(pagemap_fd, mem + thpsize - pagesize)) {
 		ksft_test_result_skip("Did not get a THP populated\n");
 		goto munmap;
 	}
-	memset(mem, 0, thpsize);
+	memset(mem, 1, thpsize);
 
 	size = thpsize;
 	switch (thp_run) {
@@ -1012,7 +1012,7 @@ static void run_with_hugetlb(test_fn fn,
 	}
 
 	/* Populate an huge page. */
-	memset(mem, 0, hugetlbsize);
+	memset(mem, 1, hugetlbsize);
 
 	/*
 	 * We need a total of two hugetlb pages to handle COW/unsharing

[PATCH 6.12 099/122] drm/amd/display: Do not elevate mem_type change to full update

[Greg Kroah-Hartman]

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

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

From: Leo Li <sunpeng.li@amd.com>

commit 35ca53b7b0f0ffd16c6675fd76abac9409cf83e0 upstream.

[Why]

There should not be any need to revalidate bandwidth on memory placement
change, since the fb is expected to be pinned to DCN-accessable memory
before scanout. For APU it's DRAM, and DGPU, it's VRAM. However, async
flips + memory type change needs to be rejected.

[How]

Do not set lock_and_validation_needed on mem_type change. Instead,
reject an async_flip request if the crtc's buffer(s) changed mem_type.

This may fix stuttering/corruption experienced with PSR SU and PSR1
panels, if the compositor allocates fbs in both VRAM carveout and GTT
and flips between them.

Fixes: a7c0cad0dc06 ("drm/amd/display: ensure async flips are only accepted for fast updates")
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 4caacd1671b7a013ad04cd8b6398f002540bdd4d)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |   29 +++++++++++++++++-----
 1 file changed, 23 insertions(+), 6 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -11370,6 +11370,25 @@ static int dm_crtc_get_cursor_mode(struc
 	return 0;
 }
 
+static bool amdgpu_dm_crtc_mem_type_changed(struct drm_device *dev,
+					    struct drm_atomic_state *state,
+					    struct drm_crtc_state *crtc_state)
+{
+	struct drm_plane *plane;
+	struct drm_plane_state *new_plane_state, *old_plane_state;
+
+	drm_for_each_plane_mask(plane, dev, crtc_state->plane_mask) {
+		new_plane_state = drm_atomic_get_plane_state(state, plane);
+		old_plane_state = drm_atomic_get_plane_state(state, plane);
+
+		if (old_plane_state->fb && new_plane_state->fb &&
+		    get_mem_type(old_plane_state->fb) != get_mem_type(new_plane_state->fb))
+			return true;
+	}
+
+	return false;
+}
+
 /**
  * amdgpu_dm_atomic_check() - Atomic check implementation for AMDgpu DM.
  *
@@ -11567,10 +11586,6 @@ static int amdgpu_dm_atomic_check(struct
 
 	/* Remove exiting planes if they are modified */
 	for_each_oldnew_plane_in_descending_zpos(state, plane, old_plane_state, new_plane_state) {
-		if (old_plane_state->fb && new_plane_state->fb &&
-		    get_mem_type(old_plane_state->fb) !=
-		    get_mem_type(new_plane_state->fb))
-			lock_and_validation_needed = true;
 
 		ret = dm_update_plane_state(dc, state, plane,
 					    old_plane_state,
@@ -11865,9 +11880,11 @@ static int amdgpu_dm_atomic_check(struct
 
 		/*
 		 * Only allow async flips for fast updates that don't change
-		 * the FB pitch, the DCC state, rotation, etc.
+		 * the FB pitch, the DCC state, rotation, mem_type, etc.
 		 */
-		if (new_crtc_state->async_flip && lock_and_validation_needed) {
+		if (new_crtc_state->async_flip &&
+		    (lock_and_validation_needed ||
+		     amdgpu_dm_crtc_mem_type_changed(dev, state, new_crtc_state))) {
 			drm_dbg_atomic(crtc->dev,
 				       "[CRTC:%d:%s] async flips are only supported for fast updates\n",
 				       crtc->base.id, crtc->name);

[PATCH 6.12 100/122] mm: clear uffd-wp PTE/PMD state on mremap()

[Greg Kroah-Hartman]

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

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

From: Ryan Roberts <ryan.roberts@arm.com>

commit 0cef0bb836e3cfe00f08f9606c72abd72fe78ca3 upstream.

When mremap()ing a memory region previously registered with userfaultfd as
write-protected but without UFFD_FEATURE_EVENT_REMAP, an inconsistency in
flag clearing leads to a mismatch between the vma flags (which have
uffd-wp cleared) and the pte/pmd flags (which do not have uffd-wp
cleared).  This mismatch causes a subsequent mprotect(PROT_WRITE) to
trigger a warning in page_table_check_pte_flags() due to setting the pte
to writable while uffd-wp is still set.

Fix this by always explicitly clearing the uffd-wp pte/pmd flags on any
such mremap() so that the values are consistent with the existing clearing
of VM_UFFD_WP.  Be careful to clear the logical flag regardless of its
physical form; a PTE bit, a swap PTE bit, or a PTE marker.  Cover PTE,
huge PMD and hugetlb paths.

Link: https://lkml.kernel.org/r/20250107144755.1871363-2-ryan.roberts@arm.com
Co-developed-by: Mikołaj Lenczewski <miko.lenczewski@arm.com>
Signed-off-by: Mikołaj Lenczewski <miko.lenczewski@arm.com>
Signed-off-by: Ryan Roberts <ryan.roberts@arm.com>
Closes: https://lore.kernel.org/linux-mm/810b44a8-d2ae-4107-b665-5a42eae2d948@arm.com/
Fixes: 63b2d4174c4a ("userfaultfd: wp: add the writeprotect API to userfaultfd ioctl")
Cc: David Hildenbrand <david@redhat.com>
Cc: Jann Horn <jannh@google.com>
Cc: Liam R. Howlett <Liam.Howlett@Oracle.com>
Cc: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Peter Xu <peterx@redhat.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/userfaultfd_k.h |   12 ++++++++++++
 mm/huge_memory.c              |   12 ++++++++++++
 mm/hugetlb.c                  |   14 +++++++++++++-
 mm/mremap.c                   |   32 +++++++++++++++++++++++++++++++-
 4 files changed, 68 insertions(+), 2 deletions(-)

--- a/include/linux/userfaultfd_k.h
+++ b/include/linux/userfaultfd_k.h
@@ -247,6 +247,13 @@ static inline bool vma_can_userfault(str
 	    vma_is_shmem(vma);
 }
 
+static inline bool vma_has_uffd_without_event_remap(struct vm_area_struct *vma)
+{
+	struct userfaultfd_ctx *uffd_ctx = vma->vm_userfaultfd_ctx.ctx;
+
+	return uffd_ctx && (uffd_ctx->features & UFFD_FEATURE_EVENT_REMAP) == 0;
+}
+
 extern int dup_userfaultfd(struct vm_area_struct *, struct list_head *);
 extern void dup_userfaultfd_complete(struct list_head *);
 void dup_userfaultfd_fail(struct list_head *);
@@ -401,6 +408,11 @@ static inline bool userfaultfd_wp_async(
 {
 	return false;
 }
+
+static inline bool vma_has_uffd_without_event_remap(struct vm_area_struct *vma)
+{
+	return false;
+}
 
 #endif /* CONFIG_USERFAULTFD */
 
--- a/mm/huge_memory.c
+++ b/mm/huge_memory.c
@@ -2132,6 +2132,16 @@ static pmd_t move_soft_dirty_pmd(pmd_t p
 	return pmd;
 }
 
+static pmd_t clear_uffd_wp_pmd(pmd_t pmd)
+{
+	if (pmd_present(pmd))
+		pmd = pmd_clear_uffd_wp(pmd);
+	else if (is_swap_pmd(pmd))
+		pmd = pmd_swp_clear_uffd_wp(pmd);
+
+	return pmd;
+}
+
 bool move_huge_pmd(struct vm_area_struct *vma, unsigned long old_addr,
 		  unsigned long new_addr, pmd_t *old_pmd, pmd_t *new_pmd)
 {
@@ -2170,6 +2180,8 @@ bool move_huge_pmd(struct vm_area_struct
 			pgtable_trans_huge_deposit(mm, new_pmd, pgtable);
 		}
 		pmd = move_soft_dirty_pmd(pmd);
+		if (vma_has_uffd_without_event_remap(vma))
+			pmd = clear_uffd_wp_pmd(pmd);
 		set_pmd_at(mm, new_addr, new_pmd, pmd);
 		if (force_flush)
 			flush_pmd_tlb_range(vma, old_addr, old_addr + PMD_SIZE);
--- a/mm/hugetlb.c
+++ b/mm/hugetlb.c
@@ -5395,6 +5395,7 @@ static void move_huge_pte(struct vm_area
 			  unsigned long new_addr, pte_t *src_pte, pte_t *dst_pte,
 			  unsigned long sz)
 {
+	bool need_clear_uffd_wp = vma_has_uffd_without_event_remap(vma);
 	struct hstate *h = hstate_vma(vma);
 	struct mm_struct *mm = vma->vm_mm;
 	spinlock_t *src_ptl, *dst_ptl;
@@ -5411,7 +5412,18 @@ static void move_huge_pte(struct vm_area
 		spin_lock_nested(src_ptl, SINGLE_DEPTH_NESTING);
 
 	pte = huge_ptep_get_and_clear(mm, old_addr, src_pte);
-	set_huge_pte_at(mm, new_addr, dst_pte, pte, sz);
+
+	if (need_clear_uffd_wp && pte_marker_uffd_wp(pte))
+		huge_pte_clear(mm, new_addr, dst_pte, sz);
+	else {
+		if (need_clear_uffd_wp) {
+			if (pte_present(pte))
+				pte = huge_pte_clear_uffd_wp(pte);
+			else if (is_swap_pte(pte))
+				pte = pte_swp_clear_uffd_wp(pte);
+		}
+		set_huge_pte_at(mm, new_addr, dst_pte, pte, sz);
+	}
 
 	if (src_ptl != dst_ptl)
 		spin_unlock(src_ptl);
--- a/mm/mremap.c
+++ b/mm/mremap.c
@@ -138,6 +138,7 @@ static int move_ptes(struct vm_area_stru
 		struct vm_area_struct *new_vma, pmd_t *new_pmd,
 		unsigned long new_addr, bool need_rmap_locks)
 {
+	bool need_clear_uffd_wp = vma_has_uffd_without_event_remap(vma);
 	struct mm_struct *mm = vma->vm_mm;
 	pte_t *old_pte, *new_pte, pte;
 	spinlock_t *old_ptl, *new_ptl;
@@ -207,7 +208,18 @@ static int move_ptes(struct vm_area_stru
 			force_flush = true;
 		pte = move_pte(pte, old_addr, new_addr);
 		pte = move_soft_dirty_pte(pte);
-		set_pte_at(mm, new_addr, new_pte, pte);
+
+		if (need_clear_uffd_wp && pte_marker_uffd_wp(pte))
+			pte_clear(mm, new_addr, new_pte);
+		else {
+			if (need_clear_uffd_wp) {
+				if (pte_present(pte))
+					pte = pte_clear_uffd_wp(pte);
+				else if (is_swap_pte(pte))
+					pte = pte_swp_clear_uffd_wp(pte);
+			}
+			set_pte_at(mm, new_addr, new_pte, pte);
+		}
 	}
 
 	arch_leave_lazy_mmu_mode();
@@ -269,6 +281,15 @@ static bool move_normal_pmd(struct vm_ar
 	if (WARN_ON_ONCE(!pmd_none(*new_pmd)))
 		return false;
 
+	/* If this pmd belongs to a uffd vma with remap events disabled, we need
+	 * to ensure that the uffd-wp state is cleared from all pgtables. This
+	 * means recursing into lower page tables in move_page_tables(), and we
+	 * can reuse the existing code if we simply treat the entry as "not
+	 * moved".
+	 */
+	if (vma_has_uffd_without_event_remap(vma))
+		return false;
+
 	/*
 	 * We don't have to worry about the ordering of src and dst
 	 * ptlocks because exclusive mmap_lock prevents deadlock.
@@ -324,6 +345,15 @@ static bool move_normal_pud(struct vm_ar
 	if (WARN_ON_ONCE(!pud_none(*new_pud)))
 		return false;
 
+	/* If this pud belongs to a uffd vma with remap events disabled, we need
+	 * to ensure that the uffd-wp state is cleared from all pgtables. This
+	 * means recursing into lower page tables in move_page_tables(), and we
+	 * can reuse the existing code if we simply treat the entry as "not
+	 * moved".
+	 */
+	if (vma_has_uffd_without_event_remap(vma))
+		return false;
+
 	/*
 	 * We don't have to worry about the ordering of src and dst
 	 * ptlocks because exclusive mmap_lock prevents deadlock.

[PATCH 6.12 101/122] mm: vmscan : pgdemote vmstat is not getting updated when MGLRU is enabled.

[Greg Kroah-Hartman]

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

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

From: Donet Tom <donettom@linux.ibm.com>

commit bd3d56ffa2c450364acf02663ba88996da37079d upstream.

When MGLRU is enabled, the pgdemote_kswapd, pgdemote_direct, and
pgdemote_khugepaged stats in vmstat are not being updated.

Commit f77f0c751478 ("mm,memcg: provide per-cgroup counters for NUMA
balancing operations") moved the pgdemote vmstat update from
demote_folio_list() to shrink_inactive_list(), which is in the normal LRU
path.  As a result, the pgdemote stats are updated correctly for the
normal LRU but not for MGLRU.

To address this, we have added the pgdemote stat update in the
evict_folios() function, which is in the MGLRU path.  With this patch, the
pgdemote stats will now be updated correctly when MGLRU is enabled.

Without this patch vmstat output when MGLRU is enabled
======================================================
pgdemote_kswapd 0
pgdemote_direct 0
pgdemote_khugepaged 0

With this patch vmstat output when MGLRU is enabled
===================================================
pgdemote_kswapd 43234
pgdemote_direct 4691
pgdemote_khugepaged 0

Link: https://lkml.kernel.org/r/20250109060540.451261-1-donettom@linux.ibm.com
Fixes: f77f0c751478 ("mm,memcg: provide per-cgroup counters for NUMA balancing operations")
Signed-off-by: Donet Tom <donettom@linux.ibm.com>
Acked-by: Yu Zhao <yuzhao@google.com>
Tested-by: Li Zhijian <lizhijian@fujitsu.com>
Reviewed-by: Li Zhijian <lizhijian@fujitsu.com>
Cc: Aneesh Kumar K.V (Arm) <aneesh.kumar@kernel.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Kaiyang Zhao <kaiyang2@cs.cmu.edu>
Cc: Michal Hocko <mhocko@kernel.org>
Cc: Muchun Song <muchun.song@linux.dev>
Cc: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Shakeel Butt <shakeel.butt@linux.dev>
Cc: Wei Xu <weixugc@google.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 mm/vmscan.c |    3 +++
 1 file changed, 3 insertions(+)

--- a/mm/vmscan.c
+++ b/mm/vmscan.c
@@ -4637,6 +4637,9 @@ retry:
 		reset_batch_size(walk);
 	}
 
+	__mod_lruvec_state(lruvec, PGDEMOTE_KSWAPD + reclaimer_offset(),
+					stat.nr_demoted);
+
 	item = PGSTEAL_KSWAPD + reclaimer_offset();
 	if (!cgroup_reclaim(sc))
 		__count_vm_events(item, reclaimed);

[PATCH 6.12 102/122] tracing: gfp: Fix the GFP enum values shown for user space tracing tools

[Greg Kroah-Hartman]

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

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

From: Steven Rostedt <rostedt@goodmis.org>

commit 60295b944ff6805e677c48ae4178532b207d43be upstream.

Tracing tools like perf and trace-cmd read the /sys/kernel/tracing/events/*/*/format
files to know how to parse the data and also how to print it. For the
"print fmt" portion of that file, if anything uses an enum that is not
exported to the tracing system, user space will not be able to parse it.

The GFP flags use to be defines, and defines get translated in the print
fmt sections. But now they are converted to use enums, which is not.

The mm_page_alloc trace event format use to have:

  print fmt: "page=%p pfn=0x%lx order=%d migratetype=%d gfp_flags=%s",
    REC->pfn != -1UL ? (((struct page *)vmemmap_base) + (REC->pfn)) : ((void
    *)0), REC->pfn != -1UL ? REC->pfn : 0, REC->order, REC->migratetype,
    (REC->gfp_flags) ? __print_flags(REC->gfp_flags, "|", {( unsigned
    long)(((((((( gfp_t)(0x400u|0x800u)) | (( gfp_t)0x40u) | (( gfp_t)0x80u) |
    (( gfp_t)0x100000u)) | (( gfp_t)0x02u)) | (( gfp_t)0x08u) | (( gfp_t)0)) |
    (( gfp_t)0x40000u) | (( gfp_t)0x80000u) | (( gfp_t)0x2000u)) & ~((
    gfp_t)(0x400u|0x800u))) | (( gfp_t)0x400u)), "GFP_TRANSHUGE"}, {( unsigned
    long)((((((( gfp_t)(0x400u|0x800u)) | (( gfp_t)0x40u) | (( gfp_t)0x80u) |
    (( gfp_t)0x100000u)) | (( gfp_t)0x02u)) | (( gfp_t)0x08u) | (( gfp_t)0)) ...

Where the GFP values are shown and not their names. But after the GFP
flags were converted to use enums, it has:

  print fmt: "page=%p pfn=0x%lx order=%d migratetype=%d gfp_flags=%s",
    REC->pfn != -1UL ? (vmemmap + (REC->pfn)) : ((void *)0), REC->pfn != -1UL
    ? REC->pfn : 0, REC->order, REC->migratetype, (REC->gfp_flags) ?
    __print_flags(REC->gfp_flags, "|", {( unsigned long)((((((((
    gfp_t)(((((1UL))) << (___GFP_DIRECT_RECLAIM_BIT))|((((1UL))) <<
    (___GFP_KSWAPD_RECLAIM_BIT)))) | (( gfp_t)((((1UL))) << (___GFP_IO_BIT)))
    | (( gfp_t)((((1UL))) << (___GFP_FS_BIT))) | (( gfp_t)((((1UL))) <<
    (___GFP_HARDWALL_BIT)))) | (( gfp_t)((((1UL))) << (___GFP_HIGHMEM_BIT))))
    | (( gfp_t)((((1UL))) << (___GFP_MOVABLE_BIT))) | (( gfp_t)0)) | ((
    gfp_t)((((1UL))) << (___GFP_COMP_BIT))) ...

Where the enums names like ___GFP_KSWAPD_RECLAIM_BIT are shown and not their
values. User space has no way to convert these names to their values and
the output will fail to parse. What is shown is now:

  mm_page_alloc:  page=0xffffffff981685f3 pfn=0x1d1ac1 order=0 migratetype=1 gfp_flags=0x140cca

The TRACE_DEFINE_ENUM() macro was created to handle enums in the print fmt
files. This causes them to be replaced at boot up with the numbers, so
that user space tooling can parse it. By using this macro, the output is
back to the human readable:

  mm_page_alloc: page=0xffffffff981685f3 pfn=0x122233 order=0 migratetype=1 gfp_flags=GFP_HIGHUSER_MOVABLE|__GFP_COMP

Cc: stable@vger.kernel.org
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Veronika  Molnarova <vmolnaro@redhat.com>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/20250116214438.749504792@goodmis.org
Reported-by: Michael Petlan <mpetlan@redhat.com>
Closes: https://lore.kernel.org/all/87be5f7c-1a0-dad-daa0-54e342efaea7@redhat.com/
Fixes: 772dd0342727c ("mm: enumerate all gfp flags")
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/trace/events/mmflags.h | 63 ++++++++++++++++++++++++++++++++++
 1 file changed, 63 insertions(+)

diff --git a/include/trace/events/mmflags.h b/include/trace/events/mmflags.h
index bb8a59c6caa2..d36c857dd249 100644
--- a/include/trace/events/mmflags.h
+++ b/include/trace/events/mmflags.h
@@ -13,6 +13,69 @@
  * Thus most bits set go first.
  */
 
+/* These define the values that are enums (the bits) */
+#define TRACE_GFP_FLAGS_GENERAL			\
+	TRACE_GFP_EM(DMA)			\
+	TRACE_GFP_EM(HIGHMEM)			\
+	TRACE_GFP_EM(DMA32)			\
+	TRACE_GFP_EM(MOVABLE)			\
+	TRACE_GFP_EM(RECLAIMABLE)		\
+	TRACE_GFP_EM(HIGH)			\
+	TRACE_GFP_EM(IO)			\
+	TRACE_GFP_EM(FS)			\
+	TRACE_GFP_EM(ZERO)			\
+	TRACE_GFP_EM(DIRECT_RECLAIM)		\
+	TRACE_GFP_EM(KSWAPD_RECLAIM)		\
+	TRACE_GFP_EM(WRITE)			\
+	TRACE_GFP_EM(NOWARN)			\
+	TRACE_GFP_EM(RETRY_MAYFAIL)		\
+	TRACE_GFP_EM(NOFAIL)			\
+	TRACE_GFP_EM(NORETRY)			\
+	TRACE_GFP_EM(MEMALLOC)			\
+	TRACE_GFP_EM(COMP)			\
+	TRACE_GFP_EM(NOMEMALLOC)		\
+	TRACE_GFP_EM(HARDWALL)			\
+	TRACE_GFP_EM(THISNODE)			\
+	TRACE_GFP_EM(ACCOUNT)			\
+	TRACE_GFP_EM(ZEROTAGS)
+
+#ifdef CONFIG_KASAN_HW_TAGS
+# define TRACE_GFP_FLAGS_KASAN			\
+	TRACE_GFP_EM(SKIP_ZERO)			\
+	TRACE_GFP_EM(SKIP_KASAN)
+#else
+# define TRACE_GFP_FLAGS_KASAN
+#endif
+
+#ifdef CONFIG_LOCKDEP
+# define TRACE_GFP_FLAGS_LOCKDEP		\
+	TRACE_GFP_EM(NOLOCKDEP)
+#else
+# define TRACE_GFP_FLAGS_LOCKDEP
+#endif
+
+#ifdef CONFIG_SLAB_OBJ_EXT
+# define TRACE_GFP_FLAGS_SLAB			\
+	TRACE_GFP_EM(NO_OBJ_EXT)
+#else
+# define TRACE_GFP_FLAGS_SLAB
+#endif
+
+#define TRACE_GFP_FLAGS				\
+	TRACE_GFP_FLAGS_GENERAL			\
+	TRACE_GFP_FLAGS_KASAN			\
+	TRACE_GFP_FLAGS_LOCKDEP			\
+	TRACE_GFP_FLAGS_SLAB
+
+#undef TRACE_GFP_EM
+#define TRACE_GFP_EM(a) TRACE_DEFINE_ENUM(___GFP_##a##_BIT);
+
+TRACE_GFP_FLAGS
+
+/* Just in case these are ever used */
+TRACE_DEFINE_ENUM(___GFP_UNUSED_BIT);
+TRACE_DEFINE_ENUM(___GFP_LAST_BIT);
+
 #define gfpflag_string(flag) {(__force unsigned long)flag, #flag}
 
 #define __def_gfpflag_names			\
-- 
2.48.1

[PATCH 6.12 103/122] irqchip: Plug a OF node reference leak in platform_irqchip_probe()

[Greg Kroah-Hartman]

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

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

From: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>

commit 9322d1915f9d976ee48c09d800fbd5169bc2ddcc upstream.

platform_irqchip_probe() leaks a OF node when irq_init_cb() fails. Fix it
by declaring par_np with the __free(device_node) cleanup construct.

This bug was found by an experimental static analysis tool that I am
developing.

Fixes: f8410e626569 ("irqchip: Add IRQCHIP_PLATFORM_DRIVER_BEGIN/END and IRQCHIP_MATCH helper macros")
Signed-off-by: Joe Hattori <joe@pf.is.s.u-tokyo.ac.jp>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241215033945.3414223-1-joe@pf.is.s.u-tokyo.ac.jp
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irqchip.c |    4 +---
 1 file changed, 1 insertion(+), 3 deletions(-)

--- a/drivers/irqchip/irqchip.c
+++ b/drivers/irqchip/irqchip.c
@@ -35,11 +35,10 @@ void __init irqchip_init(void)
 int platform_irqchip_probe(struct platform_device *pdev)
 {
 	struct device_node *np = pdev->dev.of_node;
-	struct device_node *par_np = of_irq_find_parent(np);
+	struct device_node *par_np __free(device_node) = of_irq_find_parent(np);
 	of_irq_init_cb_t irq_init_cb = of_device_get_match_data(&pdev->dev);
 
 	if (!irq_init_cb) {
-		of_node_put(par_np);
 		return -EINVAL;
 	}
 
@@ -55,7 +54,6 @@ int platform_irqchip_probe(struct platfo
 	 * interrupt controller can check for specific domains as necessary.
 	 */
 	if (par_np && !irq_find_matching_host(par_np, DOMAIN_BUS_ANY)) {
-		of_node_put(par_np);
 		return -EPROBE_DEFER;
 	}
 

[PATCH 6.12 104/122] irqchip/gic-v3: Handle CPU_PM_ENTER_FAILED correctly

[Greg Kroah-Hartman]

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

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

From: Yogesh Lal <quic_ylal@quicinc.com>

commit 0d62a49ab55c99e8deb4593b8d9f923de1ab5c18 upstream.

When a CPU attempts to enter low power mode, it disables the redistributor
and Group 1 interrupts and reinitializes the system registers upon wakeup.

If the transition into low power mode fails, then the CPU_PM framework
invokes the PM notifier callback with CPU_PM_ENTER_FAILED to allow the
drivers to undo the state changes.

The GIC V3 driver ignores CPU_PM_ENTER_FAILED, which leaves the GIC in
disabled state.

Handle CPU_PM_ENTER_FAILED in the same way as CPU_PM_EXIT to restore normal
operation.

[ tglx: Massage change log, add Fixes tag ]

Fixes: 3708d52fc6bb ("irqchip: gic-v3: Implement CPU PM notifier")
Signed-off-by: Yogesh Lal <quic_ylal@quicinc.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241220093907.2747601-1-quic_ylal@quicinc.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-gic-v3.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/irqchip/irq-gic-v3.c
+++ b/drivers/irqchip/irq-gic-v3.c
@@ -1522,7 +1522,7 @@ static int gic_retrigger(struct irq_data
 static int gic_cpu_pm_notifier(struct notifier_block *self,
 			       unsigned long cmd, void *v)
 {
-	if (cmd == CPU_PM_EXIT) {
+	if (cmd == CPU_PM_EXIT || cmd == CPU_PM_ENTER_FAILED) {
 		if (gic_dist_security_disabled())
 			gic_enable_redist(true);
 		gic_cpu_sys_reg_enable();

[PATCH 6.12 105/122] irqchip/gic-v3-its: Dont enable interrupts in its_irq_set_vcpu_affinity()

[Greg Kroah-Hartman]

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

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

From: Tomas Krcka <krckatom@amazon.de>

commit 35cb2c6ce7da545f3b5cb1e6473ad7c3a6f08310 upstream.

The following call-chain leads to enabling interrupts in a nested interrupt
disabled section:

irq_set_vcpu_affinity()
  irq_get_desc_lock()
     raw_spin_lock_irqsave()   <--- Disable interrupts
  its_irq_set_vcpu_affinity()
     guard(raw_spinlock_irq)   <--- Enables interrupts when leaving the guard()
  irq_put_desc_unlock()        <--- Warns because interrupts are enabled

This was broken in commit b97e8a2f7130, which replaced the original
raw_spin_[un]lock() pair with guard(raw_spinlock_irq).

Fix the issue by using guard(raw_spinlock).

[ tglx: Massaged change log ]

Fixes: b97e8a2f7130 ("irqchip/gic-v3-its: Fix potential race condition in its_vlpi_prop_update()")
Signed-off-by: Tomas Krcka <krckatom@amazon.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241230150825.62894-1-krckatom@amazon.de
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/irqchip/irq-gic-v3-its.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/irqchip/irq-gic-v3-its.c
+++ b/drivers/irqchip/irq-gic-v3-its.c
@@ -1961,7 +1961,7 @@ static int its_irq_set_vcpu_affinity(str
 	if (!is_v4(its_dev->its))
 		return -EINVAL;
 
-	guard(raw_spinlock_irq)(&its_dev->event_map.vlpi_lock);
+	guard(raw_spinlock)(&its_dev->event_map.vlpi_lock);
 
 	/* Unmap request? */
 	if (!info)

[PATCH 6.12 106/122] hrtimers: Handle CPU state correctly on hotplug

[Greg Kroah-Hartman]

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

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

From: Koichiro Den <koichiro.den@canonical.com>

commit 2f8dea1692eef2b7ba6a256246ed82c365fdc686 upstream.

Consider a scenario where a CPU transitions from CPUHP_ONLINE to halfway
through a CPU hotunplug down to CPUHP_HRTIMERS_PREPARE, and then back to
CPUHP_ONLINE:

Since hrtimers_prepare_cpu() does not run, cpu_base.hres_active remains set
to 1 throughout. However, during a CPU unplug operation, the tick and the
clockevents are shut down at CPUHP_AP_TICK_DYING. On return to the online
state, for instance CFS incorrectly assumes that the hrtick is already
active, and the chance of the clockevent device to transition to oneshot
mode is also lost forever for the CPU, unless it goes back to a lower state
than CPUHP_HRTIMERS_PREPARE once.

This round-trip reveals another issue; cpu_base.online is not set to 1
after the transition, which appears as a WARN_ON_ONCE in enqueue_hrtimer().

Aside of that, the bulk of the per CPU state is not reset either, which
means there are dangling pointers in the worst case.

Address this by adding a corresponding startup() callback, which resets the
stale per CPU state and sets the online flag.

[ tglx: Make the new callback unconditionally available, remove the online
  	modification in the prepare() callback and clear the remaining
  	state in the starting callback instead of the prepare callback ]

Fixes: 5c0930ccaad5 ("hrtimers: Push pending hrtimers away from outgoing CPU earlier")
Signed-off-by: Koichiro Den <koichiro.den@canonical.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20241220134421.3809834-1-koichiro.den@canonical.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 include/linux/hrtimer.h |    1 +
 kernel/cpu.c            |    2 +-
 kernel/time/hrtimer.c   |   11 ++++++++++-
 3 files changed, 12 insertions(+), 2 deletions(-)

--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -379,6 +379,7 @@ extern void __init hrtimers_init(void);
 extern void sysrq_timer_list_show(void);
 
 int hrtimers_prepare_cpu(unsigned int cpu);
+int hrtimers_cpu_starting(unsigned int cpu);
 #ifdef CONFIG_HOTPLUG_CPU
 int hrtimers_cpu_dying(unsigned int cpu);
 #else
--- a/kernel/cpu.c
+++ b/kernel/cpu.c
@@ -2179,7 +2179,7 @@ static struct cpuhp_step cpuhp_hp_states
 	},
 	[CPUHP_AP_HRTIMERS_DYING] = {
 		.name			= "hrtimers:dying",
-		.startup.single		= NULL,
+		.startup.single		= hrtimers_cpu_starting,
 		.teardown.single	= hrtimers_cpu_dying,
 	},
 	[CPUHP_AP_TICK_DYING] = {
--- a/kernel/time/hrtimer.c
+++ b/kernel/time/hrtimer.c
@@ -2156,6 +2156,15 @@ int hrtimers_prepare_cpu(unsigned int cp
 	}
 
 	cpu_base->cpu = cpu;
+	hrtimer_cpu_base_init_expiry_lock(cpu_base);
+	return 0;
+}
+
+int hrtimers_cpu_starting(unsigned int cpu)
+{
+	struct hrtimer_cpu_base *cpu_base = this_cpu_ptr(&hrtimer_bases);
+
+	/* Clear out any left over state from a CPU down operation */
 	cpu_base->active_bases = 0;
 	cpu_base->hres_active = 0;
 	cpu_base->hang_detected = 0;
@@ -2164,7 +2173,6 @@ int hrtimers_prepare_cpu(unsigned int cp
 	cpu_base->expires_next = KTIME_MAX;
 	cpu_base->softirq_expires_next = KTIME_MAX;
 	cpu_base->online = 1;
-	hrtimer_cpu_base_init_expiry_lock(cpu_base);
 	return 0;
 }
 
@@ -2240,6 +2248,7 @@ int hrtimers_cpu_dying(unsigned int dyin
 void __init hrtimers_init(void)
 {
 	hrtimers_prepare_cpu(smp_processor_id());
+	hrtimers_cpu_starting(smp_processor_id());
 	open_softirq(HRTIMER_SOFTIRQ, hrtimer_run_softirq);
 }
 

[PATCH 6.12 107/122] timers/migration: Fix another race between hotplug and idle entry/exit

[Greg Kroah-Hartman]

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

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

From: Frederic Weisbecker <frederic@kernel.org>

commit b729cc1ec21a5899b7879ccfbe1786664928d597 upstream.

Commit 10a0e6f3d3db ("timers/migration: Move hierarchy setup into
cpuhotplug prepare callback") fixed a race between idle exit and CPU
hotplug up leading to a wrong "0" value migrator assigned to the top
level. However there is still a situation that remains unhandled:

         [GRP0:0]
        migrator  = TMIGR_NONE
        active    = NONE
        groupmask = 0
        /     \      \
       0       1     2..7
     idle      idle   idle

0) The system is fully idle.

         [GRP0:0]
        migrator  = CPU 0
        active    = CPU 0
        groupmask = 0
        /     \      \
       0       1     2..7
     active   idle   idle

1) CPU 0 is activating. It has done the cmpxchg on the top's ->migr_state
but it hasn't yet returned to __walk_groups().

         [GRP0:0]
        migrator  = CPU 0
        active    = CPU 0, CPU 1
        groupmask = 0
        /     \      \
       0       1     2..7
     active  active  idle

2) CPU 1 is activating. CPU 0 stays the migrator (still stuck in
__walk_groups(), delayed by #VMEXIT for example).

                 [GRP1:0]
              migrator = TMIGR_NONE
              active   = NONE
              groupmask = 0
              /                  \
        [GRP0:0]                      [GRP0:1]
       migrator  = CPU 0           migrator = TMIGR_NONE
       active    = CPU 0, CPU1     active   = NONE
       groupmask = 2               groupmask = 1
       /     \      \
      0       1     2..7                   8
    active  active  idle              !online

3) CPU 8 is preparing to boot. CPUHP_TMIGR_PREPARE is being ran by CPU 1
which has created the GRP0:1 and the new top GRP1:0 connected to GRP0:1
and GRP0:0. The groupmask of GRP0:0 is now 2. CPU 1 hasn't yet
propagated its activation up to GRP1:0.

                 [GRP1:0]
              migrator = 0 (!!!)
              active   = NONE
              groupmask = 0
              /                  \
        [GRP0:0]                  [GRP0:1]
       migrator  = CPU 0           migrator = TMIGR_NONE
       active    = CPU 0, CPU1     active   = NONE
       groupmask = 2               groupmask = 1
       /     \      \
      0       1     2..7                   8
    active  active  idle                !online

4) CPU 0 finally resumed after its #VMEXIT. It's in __walk_groups()
returning from tmigr_cpu_active(). The new top GRP1:0 is visible and
fetched but the freshly updated groupmask of GRP0:0 may not be visible
due to lack of ordering! As a result tmigr_active_up() is called to
GRP0:0 with a child's groupmask of "0". This buggy "0" groupmask then
becomes the migrator for GRP1:0 forever. As a result, timers on a fully
idle system get ignored.

One possible fix would be to define TMIGR_NONE as "0" so that such a
race would have no effect. And after all TMIGR_NONE doesn't need to be
anything else. However this would leave an uncomfortable state machine
where gears happen not to break by chance but are vulnerable to future
modifications.

Keep TMIGR_NONE as is instead and pre-initialize to "1" the groupmask of
any newly created top level. This groupmask is guaranteed to be visible
upon fetching the corresponding group for the 1st time:

_ By the upcoming CPU thanks to CPU hotplug synchronization between the
  control CPU (BP) and the booting one (AP).

_ By the control CPU since the groupmask and parent pointers are
  initialized locally.

_ By all CPUs belonging to the same group than the control CPU because
  they must wait for it to ever become idle before needing to walk to
  the new top. The cmpcxhg() on ->migr_state then makes sure its
  groupmask is visible.

With this pre-initialization, it is guaranteed that if a future top level
is linked to an old one, it is walked through with a valid groupmask.

Fixes: 10a0e6f3d3db ("timers/migration: Move hierarchy setup into cpuhotplug prepare callback")
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250114231507.21672-2-frederic@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/time/timer_migration.c | 29 ++++++++++++++++++++++++++++-
 1 file changed, 28 insertions(+), 1 deletion(-)

diff --git a/kernel/time/timer_migration.c b/kernel/time/timer_migration.c
index 8d57f7686bb0..c8a8ea2e5b98 100644
--- a/kernel/time/timer_migration.c
+++ b/kernel/time/timer_migration.c
@@ -1487,6 +1487,21 @@ static void tmigr_init_group(struct tmigr_group *group, unsigned int lvl,
 	s.seq = 0;
 	atomic_set(&group->migr_state, s.state);
 
+	/*
+	 * If this is a new top-level, prepare its groupmask in advance.
+	 * This avoids accidents where yet another new top-level is
+	 * created in the future and made visible before the current groupmask.
+	 */
+	if (list_empty(&tmigr_level_list[lvl])) {
+		group->groupmask = BIT(0);
+		/*
+		 * The previous top level has prepared its groupmask already,
+		 * simply account it as the first child.
+		 */
+		if (lvl > 0)
+			group->num_children = 1;
+	}
+
 	timerqueue_init_head(&group->events);
 	timerqueue_init(&group->groupevt.nextevt);
 	group->groupevt.nextevt.expires = KTIME_MAX;
@@ -1550,8 +1565,20 @@ static void tmigr_connect_child_parent(struct tmigr_group *child,
 	raw_spin_lock_irq(&child->lock);
 	raw_spin_lock_nested(&parent->lock, SINGLE_DEPTH_NESTING);
 
+	if (activate) {
+		/*
+		 * @child is the old top and @parent the new one. In this
+		 * case groupmask is pre-initialized and @child already
+		 * accounted, along with its new sibling corresponding to the
+		 * CPU going up.
+		 */
+		WARN_ON_ONCE(child->groupmask != BIT(0) || parent->num_children != 2);
+	} else {
+		/* Adding @child for the CPU going up to @parent. */
+		child->groupmask = BIT(parent->num_children++);
+	}
+
 	child->parent = parent;
-	child->groupmask = BIT(parent->num_children++);
 
 	raw_spin_unlock(&parent->lock);
 	raw_spin_unlock_irq(&child->lock);
-- 
2.48.1

[PATCH 6.12 108/122] timers/migration: Enforce group initialization visibility to tree walkers

[Greg Kroah-Hartman]

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

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

From: Frederic Weisbecker <frederic@kernel.org>

commit de3ced72a79280fefd680e5e101d8b9f03cfa1d7 upstream.

Commit 2522c84db513 ("timers/migration: Fix another race between hotplug
and idle entry/exit") fixed yet another race between idle exit and CPU
hotplug up leading to a wrong "0" value migrator assigned to the top
level. However there is yet another situation that remains unhandled:

         [GRP0:0]
      migrator  = TMIGR_NONE
      active    = NONE
      groupmask = 1
      /     \      \
     0       1     2..7
   idle      idle   idle

0) The system is fully idle.

         [GRP0:0]
      migrator  = CPU 0
      active    = CPU 0
      groupmask = 1
      /     \      \
     0       1     2..7
   active   idle   idle

1) CPU 0 is activating. It has done the cmpxchg on the top's ->migr_state
but it hasn't yet returned to __walk_groups().

         [GRP0:0]
      migrator  = CPU 0
      active    = CPU 0, CPU 1
      groupmask = 1
      /     \      \
     0       1     2..7
   active  active  idle

2) CPU 1 is activating. CPU 0 stays the migrator (still stuck in
__walk_groups(), delayed by #VMEXIT for example).

                    [GRP1:0]
                migrator = TMIGR_NONE
                active   = NONE
                groupmask = 1
             /                   \
         [GRP0:0]                  [GRP0:1]
      migrator  = CPU 0           migrator = TMIGR_NONE
      active    = CPU 0, CPU1     active   = NONE
      groupmask = 1               groupmask = 2
      /     \      \
     0       1     2..7                   8
   active  active  idle                !online

3) CPU 8 is preparing to boot. CPUHP_TMIGR_PREPARE is being ran by CPU 1
which has created the GRP0:1 and the new top GRP1:0 connected to GRP0:1
and GRP0:0. CPU 1 hasn't yet propagated its activation up to GRP1:0.

                    [GRP1:0]
               migrator = GRP0:0
               active   = GRP0:0
               groupmask = 1
             /                   \
         [GRP0:0]                  [GRP0:1]
     migrator  = CPU 0           migrator = TMIGR_NONE
     active    = CPU 0, CPU1     active   = NONE
     groupmask = 1               groupmask = 2
     /     \      \
    0       1     2..7                   8
  active  active  idle                !online

4) CPU 0 finally resumed after its #VMEXIT. It's in __walk_groups()
returning from tmigr_cpu_active(). The new top GRP1:0 is visible and
fetched and the pre-initialized groupmask of GRP0:0 is also visible.
As a result tmigr_active_up() is called to GRP1:0 with GRP0:0 as active
and migrator. CPU 0 is returning to __walk_groups() but suffers again
a #VMEXIT.

                    [GRP1:0]
               migrator = GRP0:0
               active   = GRP0:0
               groupmask = 1
             /                   \
         [GRP0:0]                  [GRP0:1]
     migrator  = CPU 0           migrator = TMIGR_NONE
     active    = CPU 0, CPU1     active   = NONE
     groupmask = 1               groupmask = 2
     /     \      \
    0       1     2..7                   8
  active  active  idle                 !online

5) CPU 1 propagates its activation of GRP0:0 to GRP1:0. This has no
   effect since CPU 0 did it already.

                    [GRP1:0]
               migrator = GRP0:0
               active   = GRP0:0, GRP0:1
               groupmask = 1
             /                   \
         [GRP0:0]                  [GRP0:1]
     migrator  = CPU 0           migrator = CPU 8
     active    = CPU 0, CPU1     active   = CPU 8
     groupmask = 1               groupmask = 2
     /     \      \                     \
    0       1     2..7                   8
  active  active  idle                 active

6) CPU 1 links CPU 8 to its group. CPU 8 boots and goes through
   CPUHP_AP_TMIGR_ONLINE which propagates activation.

                                   [GRP2:0]
                              migrator = TMIGR_NONE
                              active   = NONE
                              groupmask = 1
                             /                \
                    [GRP1:0]                    [GRP1:1]
               migrator = GRP0:0              migrator = TMIGR_NONE
               active   = GRP0:0, GRP0:1      active   = NONE
               groupmask = 1                  groupmask = 2
             /                   \
         [GRP0:0]                  [GRP0:1]                [GRP0:2]
     migrator  = CPU 0           migrator = CPU 8        migrator = TMIGR_NONE
     active    = CPU 0, CPU1     active   = CPU 8        active   = NONE
     groupmask = 1               groupmask = 2           groupmask = 0
     /     \      \                     \
    0       1     2..7                   8                  64
  active  active  idle                 active             !online

7) CPU 64 is booting. CPUHP_TMIGR_PREPARE is being ran by CPU 1
which has created the GRP1:1, GRP0:2 and the new top GRP2:0 connected to
GRP1:1 and GRP1:0. CPU 1 hasn't yet propagated its activation up to
GRP2:0.

                                   [GRP2:0]
                              migrator = 0 (!!!)
                              active   = NONE
                              groupmask = 1
                             /                \
                    [GRP1:0]                    [GRP1:1]
               migrator = GRP0:0              migrator = TMIGR_NONE
               active   = GRP0:0, GRP0:1      active   = NONE
               groupmask = 1                  groupmask = 2
             /                   \
         [GRP0:0]                  [GRP0:1]                [GRP0:2]
     migrator  = CPU 0           migrator = CPU 8        migrator = TMIGR_NONE
     active    = CPU 0, CPU1     active   = CPU 8        active   = NONE
     groupmask = 1               groupmask = 2           groupmask = 0
     /     \      \                     \
    0       1     2..7                   8                  64
  active  active  idle                 active             !online

8) CPU 0 finally resumed after its #VMEXIT. It's in __walk_groups()
returning from tmigr_cpu_active(). The new top GRP2:0 is visible and
fetched but the pre-initialized groupmask of GRP1:0 is not because no
ordering made its initialization visible. As a result tmigr_active_up()
may be called to GRP2:0 with a "0" child's groumask. Leaving the timers
ignored for ever when the system is fully idle.

The race is highly theoretical and perhaps impossible in practice but
the groupmask of the child is not the only concern here as the whole
initialization of the child is not guaranteed to be visible to any
tree walker racing against hotplug (idle entry/exit, remote handling,
etc...). Although the current code layout seem to be resilient to such
hazards, this doesn't tell much about the future.

Fix this with enforcing address dependency between group initialization
and the write/read to the group's parent's pointer. Fortunately that
doesn't involve any barrier addition in the fast paths.

Fixes: 10a0e6f3d3db ("timers/migration: Move hierarchy setup into cpuhotplug prepare callback")
Signed-off-by: Frederic Weisbecker <frederic@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250114231507.21672-3-frederic@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 kernel/time/timer_migration.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/kernel/time/timer_migration.c b/kernel/time/timer_migration.c
index c8a8ea2e5b98..371a62a749aa 100644
--- a/kernel/time/timer_migration.c
+++ b/kernel/time/timer_migration.c
@@ -534,8 +534,13 @@ static void __walk_groups(up_f up, struct tmigr_walk *data,
 			break;
 
 		child = group;
-		group = group->parent;
+		/*
+		 * Pairs with the store release on group connection
+		 * to make sure group initialization is visible.
+		 */
+		group = READ_ONCE(group->parent);
 		data->childmask = child->groupmask;
+		WARN_ON_ONCE(!data->childmask);
 	} while (group);
 }
 
@@ -1578,7 +1583,12 @@ static void tmigr_connect_child_parent(struct tmigr_group *child,
 		child->groupmask = BIT(parent->num_children++);
 	}
 
-	child->parent = parent;
+	/*
+	 * Make sure parent initialization is visible before publishing it to a
+	 * racing CPU entering/exiting idle. This RELEASE barrier enforces an
+	 * address dependency that pairs with the READ_ONCE() in __walk_groups().
+	 */
+	smp_store_release(&child->parent, parent);
 
 	raw_spin_unlock(&parent->lock);
 	raw_spin_unlock_irq(&child->lock);
-- 
2.48.1

[PATCH 6.12 109/122] x86/fred: Fix the FRED RSP0 MSR out of sync with its per-CPU cache

[Greg Kroah-Hartman]

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

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

From: Xin Li (Intel) <xin@zytor.com>

commit de31b3cd706347044e1a57d68c3a683d58e8cca4 upstream.

The FRED RSP0 MSR is only used for delivering events when running
userspace.  Linux leverages this property to reduce expensive MSR
writes and optimize context switches.  The kernel only writes the
MSR when about to run userspace *and* when the MSR has actually
changed since the last time userspace ran.

This optimization is implemented by maintaining a per-CPU cache of
FRED RSP0 and then checking that against the value for the top of
current task stack before running userspace.

However cpu_init_fred_exceptions() writes the MSR without updating
the per-CPU cache.  This means that the kernel might return to
userspace with MSR_IA32_FRED_RSP0==0 when it needed to point to the
top of current task stack.  This would induce a double fault (#DF),
which is bad.

A context switch after cpu_init_fred_exceptions() can paper over
the issue since it updates the cached value.  That evidently
happens most of the time explaining how this bug got through.

Fix the bug through resynchronizing the FRED RSP0 MSR with its
per-CPU cache in cpu_init_fred_exceptions().

Fixes: fe85ee391966 ("x86/entry: Set FRED RSP0 on return to userspace instead of context switch")
Signed-off-by: Xin Li (Intel) <xin@zytor.com>
Signed-off-by: Dave Hansen <dave.hansen@linux.intel.com>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc:stable@vger.kernel.org
Link: https://lore.kernel.org/all/20250110174639.1250829-1-xin%40zytor.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 arch/x86/kernel/fred.c | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/arch/x86/kernel/fred.c b/arch/x86/kernel/fred.c
index 8d32c3f48abc..5e2cd1004980 100644
--- a/arch/x86/kernel/fred.c
+++ b/arch/x86/kernel/fred.c
@@ -50,7 +50,13 @@ void cpu_init_fred_exceptions(void)
 	       FRED_CONFIG_ENTRYPOINT(asm_fred_entrypoint_user));
 
 	wrmsrl(MSR_IA32_FRED_STKLVLS, 0);
-	wrmsrl(MSR_IA32_FRED_RSP0, 0);
+
+	/*
+	 * Ater a CPU offline/online cycle, the FRED RSP0 MSR should be
+	 * resynchronized with its per-CPU cache.
+	 */
+	wrmsrl(MSR_IA32_FRED_RSP0, __this_cpu_read(fred_rsp0));
+
 	wrmsrl(MSR_IA32_FRED_RSP1, 0);
 	wrmsrl(MSR_IA32_FRED_RSP2, 0);
 	wrmsrl(MSR_IA32_FRED_RSP3, 0);
-- 
2.48.1

[PATCH 6.12 110/122] drm/i915/fb: Relax clear color alignment to 64 bytes

[Greg Kroah-Hartman]

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

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

From: Ville Syrjälä <ville.syrjala@linux.intel.com>

commit 1a5401ec3018c101c456cdbda2eaef9482db6786 upstream.

Mesa changed its clear color alignment from 4k to 64 bytes
without informing the kernel side about the change. This
is now likely to cause framebuffer creation to fail.

The only thing we do with the clear color buffer in i915 is:
1. map a single page
2. read out bytes 16-23 from said page
3. unmap the page

So the only requirement we really have is that those 8 bytes
are all contained within one page. Thus we can deal with the
Mesa regression by reducing the alignment requiment from 4k
to the same 64 bytes in the kernel. We could even go as low as
32 bytes, but IIRC 64 bytes is the hardware requirement on
the 3D engine side so matching that seems sensible.

Note that the Mesa alignment chages were partially undone
so the regression itself was already fixed on userspace
side.

Cc: stable@vger.kernel.org
Cc: Sagar Ghuge <sagar.ghuge@intel.com>
Cc: Nanley Chery <nanley.g.chery@intel.com>
Reported-by: Xi Ruoyao <xry111@xry111.site>
Closes: https://gitlab.freedesktop.org/drm/i915/kernel/-/issues/13057
Closes: https://lore.kernel.org/all/45a5bba8de009347262d86a4acb27169d9ae0d9f.camel@xry111.site/
Link: https://gitlab.freedesktop.org/mesa/mesa/-/commit/17f97a69c13832a6c1b0b3aad45b06f07d4b852f
Link: https://gitlab.freedesktop.org/mesa/mesa/-/commit/888f63cf1baf34bc95e847a30a041dc7798edddb
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20241129065014.8363-2-ville.syrjala@linux.intel.com
Tested-by: Xi Ruoyao <xry111@xry111.site>
Reviewed-by: José Roberto de Souza <jose.souza@intel.com>
(cherry picked from commit ed3a892e5e3d6b3f6eeb76db7c92a968aeb52f3d)
Signed-off-by: Tvrtko Ursulin <tursulin@ursulin.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/i915/display/intel_fb.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/i915/display/intel_fb.c
+++ b/drivers/gpu/drm/i915/display/intel_fb.c
@@ -1613,7 +1613,7 @@ int intel_fill_fb_info(struct drm_i915_p
 		 * arithmetic related to alignment and offset calculation.
 		 */
 		if (is_gen12_ccs_cc_plane(&fb->base, i)) {
-			if (IS_ALIGNED(fb->base.offsets[i], PAGE_SIZE))
+			if (IS_ALIGNED(fb->base.offsets[i], 64))
 				continue;
 			else
 				return -EINVAL;

[PATCH 6.12 111/122] drm/xe: Mark ComputeCS read mode as UC on iGPU

[Greg Kroah-Hartman]

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

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

From: Matthew Brost <matthew.brost@intel.com>

commit b1231ff7ea0689d04040a44864c265bc11612fa8 upstream.

RING_CMD_CCTL read index should be UC on iGPU parts due to L3 caching
structure. Having this as WB blocks ULLS from being enabled. Change to
UC to unblock ULLS on iGPU.

v2:
 - Drop internal communications commnet, bspec is updated

Cc: Balasubramani Vivekanandan <balasubramani.vivekanandan@intel.com>
Cc: Michal Mrozek <michal.mrozek@intel.com>
Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Cc: José Roberto de Souza <jose.souza@intel.com>
Cc: stable@vger.kernel.org
Fixes: 328e089bfb37 ("drm/xe: Leverage ComputeCS read L3 caching")
Signed-off-by: Matthew Brost <matthew.brost@intel.com>
Acked-by: Michal Mrozek <michal.mrozek@intel.com>
Reviewed-by: Stuart Summers <stuart.summers@intel.com>
Reviewed-by: Matt Roper <matthew.d.roper@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250114002507.114087-1-matthew.brost@intel.com
(cherry picked from commit 758debf35b9cda5450e40996991a6e4b222899bd)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/xe/xe_hw_engine.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/xe/xe_hw_engine.c
+++ b/drivers/gpu/drm/xe/xe_hw_engine.c
@@ -417,7 +417,7 @@ hw_engine_setup_default_state(struct xe_
 	 * Bspec: 72161
 	 */
 	const u8 mocs_write_idx = gt->mocs.uc_index;
-	const u8 mocs_read_idx = hwe->class == XE_ENGINE_CLASS_COMPUTE &&
+	const u8 mocs_read_idx = hwe->class == XE_ENGINE_CLASS_COMPUTE && IS_DGFX(xe) &&
 				 (GRAPHICS_VER(xe) >= 20 || xe->info.platform == XE_PVC) ?
 				 gt->mocs.wb_index : gt->mocs.uc_index;
 	u32 ring_cmd_cctl_val = REG_FIELD_PREP(CMD_CCTL_WRITE_OVERRIDE_MASK, mocs_write_idx) |

[PATCH 6.12 112/122] drm/xe/oa: Add missing VISACTL mux registers

[Greg Kroah-Hartman]

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

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

From: Ashutosh Dixit <ashutosh.dixit@intel.com>

commit 79a21fc921d7aafaf69d00b4938435b81bf66022 upstream.

Add missing VISACTL mux registers required for some OA
config's (e.g. RenderPipeCtrl).

Fixes: cdf02fe1a94a ("drm/xe/oa/uapi: Add/remove OA config perf ops")
Cc: stable@vger.kernel.org
Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com>
Reviewed-by: Umesh Nerlige Ramappa <umesh.nerlige.ramappa@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250111021539.2920346-1-ashutosh.dixit@intel.com
(cherry picked from commit c26f22dac3449d8a687237cdfc59a6445eb8f75a)
Signed-off-by: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/xe/xe_oa.c |    1 +
 1 file changed, 1 insertion(+)

--- a/drivers/gpu/drm/xe/xe_oa.c
+++ b/drivers/gpu/drm/xe/xe_oa.c
@@ -1980,6 +1980,7 @@ static const struct xe_mmio_range xe2_oa
 	{ .start = 0x5194, .end = 0x5194 },	/* SYS_MEM_LAT_MEASURE_MERTF_GRP_3D */
 	{ .start = 0x8704, .end = 0x8704 },	/* LMEM_LAT_MEASURE_MCFG_GRP */
 	{ .start = 0xB1BC, .end = 0xB1BC },	/* L3_BANK_LAT_MEASURE_LBCF_GFX */
+	{ .start = 0xD0E0, .end = 0xD0F4 },	/* VISACTL */
 	{ .start = 0xE18C, .end = 0xE18C },	/* SAMPLER_MODE */
 	{ .start = 0xE590, .end = 0xE590 },	/* TDL_LSC_LAT_MEASURE_TDL_GFX */
 	{ .start = 0x13000, .end = 0x137FC },	/* PES_0_PESL0 - PES_63_UPPER_PESL3 */

[PATCH 6.12 113/122] drm/amdgpu/smu13: update powersave optimizations

[Greg Kroah-Hartman]

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

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

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

commit 11510e67d0bd956878ab4ffa03c45766788092c1 upstream.

Only apply when compute profile is selected.  This is
the only supported configuration.  Selecting other
profiles can lead to performane degradations.

Reviewed-by: Kenneth Feng <kenneth.feng@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit d477e39532d725b1cdb3c8005c689c74ffbf3b94)
Cc: stable@vger.kernel.org # 6.12.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c |   11 ++++++-----
 1 file changed, 6 insertions(+), 5 deletions(-)

--- a/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
+++ b/drivers/gpu/drm/amd/pm/swsmu/smu13/smu_v13_0_0_ppt.c
@@ -2549,11 +2549,12 @@ static int smu_v13_0_0_set_power_profile
 					  &backend_workload_mask);
 
 	/* Add optimizations for SMU13.0.0/10.  Reuse the power saving profile */
-	if ((amdgpu_ip_version(smu->adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 0) &&
-	     ((smu->adev->pm.fw_version == 0x004e6601) ||
-	      (smu->adev->pm.fw_version >= 0x004e7300))) ||
-	    (amdgpu_ip_version(smu->adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 10) &&
-	     smu->adev->pm.fw_version >= 0x00504500)) {
+	if ((workload_mask & (1 << PP_SMC_POWER_PROFILE_COMPUTE)) &&
+	    ((amdgpu_ip_version(smu->adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 0) &&
+	      ((smu->adev->pm.fw_version == 0x004e6601) ||
+	       (smu->adev->pm.fw_version >= 0x004e7300))) ||
+	     (amdgpu_ip_version(smu->adev, MP1_HWIP, 0) == IP_VERSION(13, 0, 10) &&
+	      smu->adev->pm.fw_version >= 0x00504500))) {
 		workload_type = smu_cmn_to_asic_specific_index(smu,
 							       CMN2ASIC_MAPPING_WORKLOAD,
 							       PP_SMC_POWER_PROFILE_POWERSAVING);

[PATCH 6.12 114/122] drm/amdgpu: fix fw attestation for MP0_14_0_{2/3}

[Greg Kroah-Hartman]

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

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

From: Gui Chengming <Jack.Gui@amd.com>

commit bd275e6cfc972329d39c6406a3c6d2ba2aba7db6 upstream.

FW attestation was disabled on MP0_14_0_{2/3}.

V2:
Move check into is_fw_attestation_support func. (Frank)
Remove DRM_WARN log info. (Alex)
Fix format. (Christian)

Signed-off-by: Gui Chengming <Jack.Gui@amd.com>
Reviewed-by: Frank.Min <Frank.Min@amd.com>
Reviewed-by: Christian König <Christian.Koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 62952a38d9bcf357d5ffc97615c48b12c9cd627c)
Cc: stable@vger.kernel.org # 6.12.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c
index 2d4b67175b55..328a1b963548 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_fw_attestation.c
@@ -122,6 +122,10 @@ static int amdgpu_is_fw_attestation_supported(struct amdgpu_device *adev)
 	if (adev->flags & AMD_IS_APU)
 		return 0;
 
+	if (amdgpu_ip_version(adev, MP0_HWIP, 0) == IP_VERSION(14, 0, 2) ||
+	    amdgpu_ip_version(adev, MP0_HWIP, 0) == IP_VERSION(14, 0, 3))
+		return 0;
+
 	if (adev->asic_type >= CHIP_SIENNA_CICHLID)
 		return 1;
 
-- 
2.48.1

[PATCH 6.12 115/122] drm/amdgpu: disable gfxoff with the compute workload on gfx12

[Greg Kroah-Hartman]

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

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

From: Kenneth Feng <kenneth.feng@amd.com>

commit 90505894c4ed581318836b792c57723df491cb91 upstream.

Disable gfxoff with the compute workload on gfx12. This is a
workaround for the opencl test failure.

Signed-off-by: Kenneth Feng <kenneth.feng@amd.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 2affe2bbc997b3920045c2c434e480c81a5f9707)
Cc: stable@vger.kernel.org # 6.12.x
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c | 5 +++--
 1 file changed, 3 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
index 3afcd1e8aa54..c4e733c2e75e 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c
@@ -715,8 +715,9 @@ int amdgpu_amdkfd_submit_ib(struct amdgpu_device *adev,
 void amdgpu_amdkfd_set_compute_idle(struct amdgpu_device *adev, bool idle)
 {
 	enum amd_powergating_state state = idle ? AMD_PG_STATE_GATE : AMD_PG_STATE_UNGATE;
-	if (IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 11 &&
-	    ((adev->mes.kiq_version & AMDGPU_MES_VERSION_MASK) <= 64)) {
+	if ((IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 11 &&
+	    ((adev->mes.kiq_version & AMDGPU_MES_VERSION_MASK) <= 64)) ||
+		(IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 12)) {
 		pr_debug("GFXOFF is %s\n", idle ? "enabled" : "disabled");
 		amdgpu_gfx_off_ctrl(adev, idle);
 	} else if ((IP_VERSION_MAJ(amdgpu_ip_version(adev, GC_HWIP, 0)) == 9) &&
-- 
2.48.1

[PATCH 6.12 116/122] drm/amdgpu: always sync the GFX pipe on ctx switch

[Greg Kroah-Hartman]

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

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

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

commit af04b320c71c4b59971f021615876808a36e5038 upstream.

That is needed to enforce isolation between contexts.

Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit def59436fb0d3ca0f211d14873d0273d69ebb405)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_ib.c
@@ -193,8 +193,8 @@ int amdgpu_ib_schedule(struct amdgpu_rin
 	need_ctx_switch = ring->current_ctx != fence_ctx;
 	if (ring->funcs->emit_pipeline_sync && job &&
 	    ((tmp = amdgpu_sync_get_fence(&job->explicit_sync)) ||
-	     (amdgpu_sriov_vf(adev) && need_ctx_switch) ||
-	     amdgpu_vm_need_pipeline_sync(ring, job))) {
+	     need_ctx_switch || amdgpu_vm_need_pipeline_sync(ring, job))) {
+
 		need_pipe_sync = true;
 
 		if (tmp)

[PATCH 6.12 117/122] drm/amd/display: Fix PSR-SU not support but still call the amdgpu_dm_psr_enable

[Greg Kroah-Hartman]

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

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

From: Tom Chung <chiahsuan.chung@amd.com>

commit b0a3e840ad287c33a86b5515d606451b7df86ad4 upstream.

[Why]
The enum DC_PSR_VERSION_SU_1 of psr_version is 1 and
DC_PSR_VERSION_UNSUPPORTED is 0xFFFFFFFF.

The original code may has chance trigger the amdgpu_dm_psr_enable()
while psr version is set to DC_PSR_VERSION_UNSUPPORTED.

[How]
Modify the condition to psr->psr_version == DC_PSR_VERSION_SU_1

Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f765e7ce0417f8dc38479b4b495047c397c16902)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8922,7 +8922,7 @@ static void amdgpu_dm_enable_self_refres
 		    (current_ts - psr->psr_dirty_rects_change_timestamp_ns) > 500000000) {
 			if (pr->replay_feature_enabled && !pr->replay_allow_active)
 				amdgpu_dm_replay_enable(acrtc_state->stream, true);
-			if (psr->psr_version >= DC_PSR_VERSION_SU_1 &&
+			if (psr->psr_version == DC_PSR_VERSION_SU_1 &&
 			    !psr->psr_allow_active && !aconn->disallow_edp_enter_psr)
 				amdgpu_dm_psr_enable(acrtc_state->stream);
 		}

[PATCH 6.12 118/122] drm/amd/display: Disable replay and psr while VRR is enabled

[Greg Kroah-Hartman]

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

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

From: Tom Chung <chiahsuan.chung@amd.com>

commit 67edb81d6e9af43a0d58edf74630f82cfda4155d upstream.

[Why]
Replay and PSR will cause some video corruption while VRR is enabled.

[How]
1. Disable the Replay and PSR while VRR is enabled.
2. Change the amdgpu_dm_crtc_vrr_active() parameter to const.
   Because the function will only read data from dm_crtc_state.

Reviewed-by: Sun peng Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Roman Li <roman.li@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit d7879340e987b3056b8ae39db255b6c19c170a0d)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c      |    6 ++++--
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c |    2 +-
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h |    2 +-
 3 files changed, 6 insertions(+), 4 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -8889,6 +8889,7 @@ static void amdgpu_dm_enable_self_refres
 	struct replay_settings *pr = &acrtc_state->stream->link->replay_settings;
 	struct amdgpu_dm_connector *aconn =
 		(struct amdgpu_dm_connector *)acrtc_state->stream->dm_stream_context;
+	bool vrr_active = amdgpu_dm_crtc_vrr_active(acrtc_state);
 
 	if (acrtc_state->update_type > UPDATE_TYPE_FAST) {
 		if (pr->config.replay_supported && !pr->replay_feature_enabled)
@@ -8915,7 +8916,8 @@ static void amdgpu_dm_enable_self_refres
 		 * adequate number of fast atomic commits to notify KMD
 		 * of update events. See `vblank_control_worker()`.
 		 */
-		if (acrtc_attach->dm_irq_params.allow_sr_entry &&
+		if (!vrr_active &&
+		    acrtc_attach->dm_irq_params.allow_sr_entry &&
 #ifdef CONFIG_DRM_AMD_SECURE_DISPLAY
 		    !amdgpu_dm_crc_window_is_activated(acrtc_state->base.crtc) &&
 #endif
@@ -9259,7 +9261,7 @@ static void amdgpu_dm_commit_planes(stru
 			bundle->stream_update.abm_level = &acrtc_state->abm_level;
 
 		mutex_lock(&dm->dc_lock);
-		if (acrtc_state->update_type > UPDATE_TYPE_FAST) {
+		if ((acrtc_state->update_type > UPDATE_TYPE_FAST) || vrr_active) {
 			if (acrtc_state->stream->link->replay_settings.replay_allow_active)
 				amdgpu_dm_replay_disable(acrtc_state->stream);
 			if (acrtc_state->stream->link->psr_settings.psr_allow_active)
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -93,7 +93,7 @@ int amdgpu_dm_crtc_set_vupdate_irq(struc
 	return rc;
 }
 
-bool amdgpu_dm_crtc_vrr_active(struct dm_crtc_state *dm_state)
+bool amdgpu_dm_crtc_vrr_active(const struct dm_crtc_state *dm_state)
 {
 	return dm_state->freesync_config.state == VRR_STATE_ACTIVE_VARIABLE ||
 	       dm_state->freesync_config.state == VRR_STATE_ACTIVE_FIXED;
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.h
@@ -37,7 +37,7 @@ int amdgpu_dm_crtc_set_vupdate_irq(struc
 
 bool amdgpu_dm_crtc_vrr_active_irq(struct amdgpu_crtc *acrtc);
 
-bool amdgpu_dm_crtc_vrr_active(struct dm_crtc_state *dm_state);
+bool amdgpu_dm_crtc_vrr_active(const struct dm_crtc_state *dm_state);
 
 int amdgpu_dm_crtc_enable_vblank(struct drm_crtc *crtc);
 

[PATCH 6.12 119/122] drm/amd/display: Do not wait for PSR disable on vbl enable

[Greg Kroah-Hartman]

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

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

From: Leo Li <sunpeng.li@amd.com>

commit ff2e4d874726c549130308b6b46aa0f8a34e04cb upstream.

[Why]

Outside of a modeset/link configuration change, we should not have to
wait for the panel to exit PSR. Depending on the panel and it's state,
it may take multiple frames for it to exit PSR. Therefore, waiting in
all scenarios may cause perceived stuttering, especially in combination
with faster vblank shutdown.

[How]

PSR1 disable is hooked up to the vblank enable event, and vice versa. In
case of vblank enable, do not wait for panel to exit PSR, but still wait
in all other cases.

We also avoid a call to unnecessarily change power_opts on disable -
this ends up sending another command to dmcub fw.

When testing against IGT, some crc tests like kms_plane_alpha_blend and
amd_hotplug were failing due to CRC timeouts. This was found to be
caused by the early return before HW has fully exited PSR1. Fix this by
first making sure we grab a vblank reference, then waiting for panel to
exit PSR1, before programming hw for CRC generation.

Fixes: 58a261bfc967 ("drm/amd/display: use a more lax vblank enable policy for older ASICs")
Closes: https://gitlab.freedesktop.org/drm/amd/-/issues/3743
Reviewed-by: Tom Chung <chiahsuan.chung@amd.com>
Signed-off-by: Leo Li <sunpeng.li@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit aa6713fa2046f4c09bf3013dd1420ae15603ca6f)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c         |    4 -
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c     |   25 ++++++----
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c    |    2 
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c |    2 
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c     |   35 ++++++++++++--
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h     |    3 -
 6 files changed, 54 insertions(+), 17 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm.c
@@ -9095,7 +9095,7 @@ static void amdgpu_dm_commit_planes(stru
 				acrtc_state->stream->link->psr_settings.psr_dirty_rects_change_timestamp_ns =
 				timestamp_ns;
 				if (acrtc_state->stream->link->psr_settings.psr_allow_active)
-					amdgpu_dm_psr_disable(acrtc_state->stream);
+					amdgpu_dm_psr_disable(acrtc_state->stream, true);
 				mutex_unlock(&dm->dc_lock);
 			}
 		}
@@ -9265,7 +9265,7 @@ static void amdgpu_dm_commit_planes(stru
 			if (acrtc_state->stream->link->replay_settings.replay_allow_active)
 				amdgpu_dm_replay_disable(acrtc_state->stream);
 			if (acrtc_state->stream->link->psr_settings.psr_allow_active)
-				amdgpu_dm_psr_disable(acrtc_state->stream);
+				amdgpu_dm_psr_disable(acrtc_state->stream, true);
 		}
 		mutex_unlock(&dm->dc_lock);
 
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crc.c
@@ -30,6 +30,7 @@
 #include "amdgpu_dm.h"
 #include "dc.h"
 #include "amdgpu_securedisplay.h"
+#include "amdgpu_dm_psr.h"
 
 static const char *const pipe_crc_sources[] = {
 	"none",
@@ -224,6 +225,10 @@ int amdgpu_dm_crtc_configure_crc_source(
 
 	mutex_lock(&adev->dm.dc_lock);
 
+	/* For PSR1, check that the panel has exited PSR */
+	if (stream_state->link->psr_settings.psr_version < DC_PSR_VERSION_SU_1)
+		amdgpu_dm_psr_wait_disable(stream_state);
+
 	/* Enable or disable CRTC CRC generation */
 	if (dm_is_crc_source_crtc(source) || source == AMDGPU_DM_PIPE_CRC_SOURCE_NONE) {
 		if (!dc_stream_configure_crc(stream_state->ctx->dc,
@@ -357,6 +362,17 @@ int amdgpu_dm_crtc_set_crc_source(struct
 
 	}
 
+	/*
+	 * Reading the CRC requires the vblank interrupt handler to be
+	 * enabled. Keep a reference until CRC capture stops.
+	 */
+	enabled = amdgpu_dm_is_valid_crc_source(cur_crc_src);
+	if (!enabled && enable) {
+		ret = drm_crtc_vblank_get(crtc);
+		if (ret)
+			goto cleanup;
+	}
+
 #if defined(CONFIG_DRM_AMD_SECURE_DISPLAY)
 	/* Reset secure_display when we change crc source from debugfs */
 	amdgpu_dm_set_crc_window_default(crtc, crtc_state->stream);
@@ -367,16 +383,7 @@ int amdgpu_dm_crtc_set_crc_source(struct
 		goto cleanup;
 	}
 
-	/*
-	 * Reading the CRC requires the vblank interrupt handler to be
-	 * enabled. Keep a reference until CRC capture stops.
-	 */
-	enabled = amdgpu_dm_is_valid_crc_source(cur_crc_src);
 	if (!enabled && enable) {
-		ret = drm_crtc_vblank_get(crtc);
-		if (ret)
-			goto cleanup;
-
 		if (dm_is_crc_source_dprx(source)) {
 			if (drm_dp_start_crc(aux, crtc)) {
 				DRM_DEBUG_DRIVER("dp start crc failed\n");
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_crtc.c
@@ -142,7 +142,7 @@ static void amdgpu_dm_crtc_set_panel_sr_
 		amdgpu_dm_replay_enable(vblank_work->stream, true);
 	} else if (vblank_enabled) {
 		if (link->psr_settings.psr_version < DC_PSR_VERSION_SU_1 && is_sr_active)
-			amdgpu_dm_psr_disable(vblank_work->stream);
+			amdgpu_dm_psr_disable(vblank_work->stream, false);
 	} else if (link->psr_settings.psr_feature_enabled &&
 		allow_sr_entry && !is_sr_active && !is_crc_window_active) {
 
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_debugfs.c
@@ -3638,7 +3638,7 @@ static int crc_win_update_set(void *data
 		/* PSR may write to OTG CRC window control register,
 		 * so close it before starting secure_display.
 		 */
-		amdgpu_dm_psr_disable(acrtc->dm_irq_params.stream);
+		amdgpu_dm_psr_disable(acrtc->dm_irq_params.stream, true);
 
 		spin_lock_irq(&adev_to_drm(adev)->event_lock);
 
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.c
@@ -201,14 +201,13 @@ void amdgpu_dm_psr_enable(struct dc_stre
  *
  * Return: true if success
  */
-bool amdgpu_dm_psr_disable(struct dc_stream_state *stream)
+bool amdgpu_dm_psr_disable(struct dc_stream_state *stream, bool wait)
 {
-	unsigned int power_opt = 0;
 	bool psr_enable = false;
 
 	DRM_DEBUG_DRIVER("Disabling psr...\n");
 
-	return dc_link_set_psr_allow_active(stream->link, &psr_enable, true, false, &power_opt);
+	return dc_link_set_psr_allow_active(stream->link, &psr_enable, wait, false, NULL);
 }
 
 /*
@@ -251,3 +250,33 @@ bool amdgpu_dm_psr_is_active_allowed(str
 
 	return allow_active;
 }
+
+/**
+ * amdgpu_dm_psr_wait_disable() - Wait for eDP panel to exit PSR
+ * @stream: stream state attached to the eDP link
+ *
+ * Waits for a max of 500ms for the eDP panel to exit PSR.
+ *
+ * Return: true if panel exited PSR, false otherwise.
+ */
+bool amdgpu_dm_psr_wait_disable(struct dc_stream_state *stream)
+{
+	enum dc_psr_state psr_state = PSR_STATE0;
+	struct dc_link *link = stream->link;
+	int retry_count;
+
+	if (link == NULL)
+		return false;
+
+	for (retry_count = 0; retry_count <= 1000; retry_count++) {
+		dc_link_get_psr_state(link, &psr_state);
+		if (psr_state == PSR_STATE0)
+			break;
+		udelay(500);
+	}
+
+	if (retry_count == 1000)
+		return false;
+
+	return true;
+}
--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_psr.h
@@ -34,8 +34,9 @@
 void amdgpu_dm_set_psr_caps(struct dc_link *link);
 void amdgpu_dm_psr_enable(struct dc_stream_state *stream);
 bool amdgpu_dm_link_setup_psr(struct dc_stream_state *stream);
-bool amdgpu_dm_psr_disable(struct dc_stream_state *stream);
+bool amdgpu_dm_psr_disable(struct dc_stream_state *stream, bool wait);
 bool amdgpu_dm_psr_disable_all(struct amdgpu_display_manager *dm);
 bool amdgpu_dm_psr_is_active_allowed(struct amdgpu_display_manager *dm);
+bool amdgpu_dm_psr_wait_disable(struct dc_stream_state *stream);
 
 #endif /* AMDGPU_DM_AMDGPU_DM_PSR_H_ */

[PATCH 6.12 120/122] Revert "drm/amd/display: Enable urgent latency adjustments for DCN35"

[Greg Kroah-Hartman]

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

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

From: Nicholas Susanto <Nicholas.Susanto@amd.com>

commit 3412860cc4c0c484f53f91b371483e6e4440c3e5 upstream.

Revert commit 284f141f5ce5 ("drm/amd/display: Enable urgent latency adjustments for DCN35")

[Why & How]

Urgent latency increase caused  2.8K OLED monitor caused it to
block this panel support P0.

Reverting this change does not reintroduce the netflix corruption issue
which it fixed.

Fixes: 284f141f5ce5 ("drm/amd/display: Enable urgent latency adjustments for DCN35")
Reviewed-by: Charlene Liu <charlene.liu@amd.com>
Signed-off-by: Nicholas Susanto <Nicholas.Susanto@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit c7ccfc0d4241a834c25a9a9e1e78b388b4445d23)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c |    4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

--- a/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
+++ b/drivers/gpu/drm/amd/display/dc/dml/dcn35/dcn35_fpu.c
@@ -195,9 +195,9 @@ struct _vcs_dpi_soc_bounding_box_st dcn3
 	.dcn_downspread_percent = 0.5,
 	.gpuvm_min_page_size_bytes = 4096,
 	.hostvm_min_page_size_bytes = 4096,
-	.do_urgent_latency_adjustment = 1,
+	.do_urgent_latency_adjustment = 0,
 	.urgent_latency_adjustment_fabric_clock_component_us = 0,
-	.urgent_latency_adjustment_fabric_clock_reference_mhz = 3000,
+	.urgent_latency_adjustment_fabric_clock_reference_mhz = 0,
 };
 
 void dcn35_build_wm_range_table_fpu(struct clk_mgr *clk_mgr)

[PATCH 6.12 121/122] drm/amd/display: Validate mdoe under MST LCT=1 case as well

[Greg Kroah-Hartman]

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

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

From: Wayne Lin <Wayne.Lin@amd.com>

commit b5cd418f016fb801be413fd52fe4711d2d13018c upstream.

[Why & How]
Currently in dm_dp_mst_is_port_support_mode(), when valdidating mode
under dsc decoding at the last DP link config, we only validate the
case when there is an UFP. However, if the MSTB LCT=1, there is no
UFP.

Under this case, use root_link_bw_in_kbps as the available bw to
compare.

Link: https://gitlab.freedesktop.org/drm/amd/-/issues/3720
Fixes: fa57924c76d9 ("drm/amd/display: Refactor function dm_dp_mst_is_port_support_mode()")
Cc: Mario Limonciello <mario.limonciello@amd.com>
Cc: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerry Zuo <jerry.zuo@amd.com>
Signed-off-by: Wayne Lin <Wayne.Lin@amd.com>
Signed-off-by: Tom Chung <chiahsuan.chung@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit a04d9534a8a75b2806c5321c387be450c364b55e)
Cc: stable@vger.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c |   14 +++++++-----
 1 file changed, 9 insertions(+), 5 deletions(-)

--- a/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
+++ b/drivers/gpu/drm/amd/display/amdgpu_dm/amdgpu_dm_mst_types.c
@@ -1831,11 +1831,15 @@ enum dc_status dm_dp_mst_is_port_support
 			if (immediate_upstream_port) {
 				virtual_channel_bw_in_kbps = kbps_from_pbn(immediate_upstream_port->full_pbn);
 				virtual_channel_bw_in_kbps = min(root_link_bw_in_kbps, virtual_channel_bw_in_kbps);
-				if (bw_range.min_kbps > virtual_channel_bw_in_kbps) {
-					DRM_DEBUG_DRIVER("MST_DSC dsc decode at last link."
-							 "Max dsc compression can't fit into MST available bw\n");
-					return DC_FAIL_BANDWIDTH_VALIDATE;
-				}
+			} else {
+				/* For topology LCT 1 case - only one mstb*/
+				virtual_channel_bw_in_kbps = root_link_bw_in_kbps;
+			}
+
+			if (bw_range.min_kbps > virtual_channel_bw_in_kbps) {
+				DRM_DEBUG_DRIVER("MST_DSC dsc decode at last link."
+						 "Max dsc compression can't fit into MST available bw\n");
+				return DC_FAIL_BANDWIDTH_VALIDATE;
 			}
 		}
 

[PATCH 6.12 122/122] apparmor: allocate xmatch for nullpdb inside aa_alloc_null

[Greg Kroah-Hartman]

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

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

From: Ryan Lee <ryan.lee@canonical.com>

commit 17d0d04f3c999e7784648bad70ce1766c3b49d69 upstream.

attach->xmatch was not set when allocating a null profile, which is used in
complain mode to allocate a learning profile. This was causing downstream
failures in find_attach, which expected a valid xmatch but did not find
one under a certain sequence of profile transitions in complain mode.

This patch ensures the xmatch is set up properly for null profiles.

Signed-off-by: Ryan Lee <ryan.lee@canonical.com>
Signed-off-by: John Johansen <john.johansen@canonical.com>
Cc: Paul Kramme <kramme@digitalmanufaktur.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 security/apparmor/policy.c |    1 +
 1 file changed, 1 insertion(+)

--- a/security/apparmor/policy.c
+++ b/security/apparmor/policy.c
@@ -626,6 +626,7 @@ struct aa_profile *aa_alloc_null(struct
 
 	/* TODO: ideally we should inherit abi from parent */
 	profile->label.flags |= FLAG_NULL;
+	profile->attach.xmatch = aa_get_pdb(nullpdb);
 	rules = list_first_entry(&profile->rules, typeof(*rules), list);
 	rules->file = aa_get_pdb(nullpdb);
 	rules->policy = aa_get_pdb(nullpdb);

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Florian Fainelli]

On 1/21/25 09:50, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.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 6.12 000/122] 6.12.11-rc1 review

[Peter Schneider]

Am 21.01.2025 um 18:50 schrieb Greg Kroah-Hartman:
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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.

Builds, boots and works on my 2-socket Ivy Bridge Xeon E5-2697 v2 server. No dmesg 
oddities or regressions found.

Tested-by: Peter Schneider <pschneider1968@googlemail.com>


Beste Grüße,
Peter Schneider

-- 
Climb the mountain not to plant your flag, but to embrace the challenge,
enjoy the air and behold the view. Climb it so you can see the world,
not so the world can see you.                    -- David McCullough Jr.

OpenPGP:  0xA3828BD796CCE11A8CADE8866E3A92C92C3FF244
Download: https://www.peters-netzplatz.de/download/pschneider1968_pub.asc
https://keys.mailvelope.com/pks/lookup?op=get&search=pschneider1968@googlemail.com
https://keys.mailvelope.com/pks/lookup?op=get&search=pschneider1968@gmail.com

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Salvatore Bonaccorso]

Hi Greg,

On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
> and the diffstat can be found below.

Built and lightly tested, when booting I'm noticing the following in
dmesg:

[  +0.007932] ------------[ cut here ]------------
[  +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130
[  +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) >
[  +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G            E      6.12.11-rc1+ #1
[  +0.000004] Tainted: [E]=UNSIGNED_MODULE
[  +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
[  +0.000002] RIP: 0010:place_entity+0x127/0x130
[  +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4>
[  +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046
[  +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2
[  +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5
[  +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002
[  +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0
[  +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360
[  +0.000003] FS:  0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000
[  +0.000002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[  +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0
[  +0.000003] Call Trace:
[  +0.000003]  <IRQ>
[  +0.000002]  ? place_entity+0x127/0x130
[  +0.000002]  ? __warn.cold+0x93/0xf6
[  +0.000004]  ? place_entity+0x127/0x130
[  +0.000003]  ? report_bug+0xff/0x140
[  +0.000005]  ? handle_bug+0x58/0x90
[  +0.000002]  ? exc_invalid_op+0x17/0x70
[  +0.000003]  ? asm_exc_invalid_op+0x1a/0x20
[  +0.000006]  ? place_entity+0x127/0x130
[  +0.000003]  ? place_entity+0x99/0x130
[  +0.000004]  reweight_entity+0x1af/0x1d0
[  +0.000003]  enqueue_task_fair+0x30c/0x5e0
[  +0.000005]  enqueue_task+0x35/0x150
[  +0.000004]  activate_task+0x3a/0x60
[  +0.000003]  sched_balance_rq+0x7c6/0xee0
[  +0.000008]  sched_balance_domains+0x25b/0x350
[  +0.000005]  handle_softirqs+0xcf/0x280
[  +0.000006]  __irq_exit_rcu+0x8d/0xb0
[  +0.000003]  sysvec_apic_timer_interrupt+0x71/0x90
[  +0.000003]  </IRQ>
[  +0.000002]  <TASK>
[  +0.000002]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
[  +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20
[  +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0>
[  +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202
[  +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830
[  +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4
[  +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
[  +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
[  +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[  +0.000006]  default_idle+0x9/0x20
[  +0.000003]  default_idle_call+0x29/0x100
[  +0.000002]  do_idle+0x1fe/0x240
[  +0.000005]  cpu_startup_entry+0x29/0x30
[  +0.000003]  start_secondary+0x11e/0x140
[  +0.000004]  common_startup_64+0x13e/0x141
[  +0.000007]  </TASK>
[  +0.000001] ---[ end trace 0000000000000000 ]---

Not yet bisected which change causes it.

Regards,
Salvatore

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Ronald Warsow]

On 21.01.25 22:46, Salvatore Bonaccorso wrote:
> Hi Greg,
>
...
>
> Built and lightly tested, when booting I'm noticing the following in
> dmesg:
>
> [  +0.007932] ------------[ cut here ]------------
> [  +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130

same here [no time to bisect]

Ronald

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Takeshi Ogasawara]

Hi Greg

On Wed, Jan 22, 2025 at 2:59 AM Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h
>

6.12.11-rc1 tested.

Build successfully completed.
Boot successfully completed.
No dmesg regressions.
Video output normal.
Sound output normal.

Lenovo ThinkPad X1 Carbon Gen10(Intel i7-1260P(x86_64) arch linux)

[    0.000000] Linux version 6.12.11-rc1rv
(takeshi@ThinkPadX1Gen10J0764) (gcc (GCC) 14.2.1 20240910, GNU ld (GNU
Binutils) 2.43.1) #1 SMP PREEMPT_DYNAMIC Wed Jan 22 07:38:39 JST 2025

Thanks

Tested-by: Takeshi Ogasawara <takeshi.ogasawara@futuring-girl.com>

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Shuah Khan]

On 1/21/25 10:50, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.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 6.12 000/122] 6.12.11-rc1 review

[SeongJae Park]

Hello,

On Tue, 21 Jan 2025 18:50:48 +0100 Greg Kroah-Hartman <gregkh@linuxfoundation.org> wrote:

> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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.

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/damonitor/damon-tests/tree/next/corr
[2] f6b51ed03daa ("Linux 6.12.11-rc1")

Thanks,
SJ

[...]

---

ok 9 selftests: damon: damos_tried_regions.py
ok 10 selftests: damon: damon_nr_regions.py
ok 11 selftests: damon: reclaim.sh
ok 12 selftests: damon: lru_sort.sh
ok 13 selftests: damon: debugfs_empty_targets.sh
ok 14 selftests: damon: debugfs_huge_count_read_write.sh
ok 15 selftests: damon: debugfs_duplicate_context_creation.sh
ok 16 selftests: damon: debugfs_rm_non_contexts.sh
ok 17 selftests: damon: debugfs_target_ids_read_before_terminate_race.sh
ok 18 selftests: damon: debugfs_target_ids_pid_leak.sh
ok 19 selftests: damon: sysfs_update_removed_scheme_dir.sh
ok 20 selftests: damon: sysfs_update_schemes_tried_regions_hang.py
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_arm64.sh # SKIP
ok 12 selftests: damon-tests: build_m68k.sh # SKIP
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
 [33m
 [92mPASS [39m

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Jon Hunter]

Hi Greg,

On 21/01/2025 21:46, Salvatore Bonaccorso wrote:
> Hi Greg,
> 
> On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
>> This is the start of the stable review cycle for the 6.12.11 release.
>> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
>> and the diffstat can be found below.
> 
> Built and lightly tested, when booting I'm noticing the following in
> dmesg:
> 
> [  +0.007932] ------------[ cut here ]------------
> [  +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 place_entity+0x127/0x130
> [  +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) >
> [  +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: G            E      6.12.11-rc1+ #1
> [  +0.000004] Tainted: [E]=UNSIGNED_MODULE
> [  +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.2-debian-1.16.2-1 04/01/2014
> [  +0.000002] RIP: 0010:place_entity+0x127/0x130
> [  +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4>
> [  +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046
> [  +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 00000000000000c2
> [  +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 000000000078cfd5
> [  +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 0000000000000002
> [  +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: ffff9ed83bd360c0
> [  +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 000000000016e360
> [  +0.000003] FS:  0000000000000000(0000) GS:ffff9ed83bd00000(0000) knlGS:0000000000000000
> [  +0.000002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> [  +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 0000000000350ef0
> [  +0.000003] Call Trace:
> [  +0.000003]  <IRQ>
> [  +0.000002]  ? place_entity+0x127/0x130
> [  +0.000002]  ? __warn.cold+0x93/0xf6
> [  +0.000004]  ? place_entity+0x127/0x130
> [  +0.000003]  ? report_bug+0xff/0x140
> [  +0.000005]  ? handle_bug+0x58/0x90
> [  +0.000002]  ? exc_invalid_op+0x17/0x70
> [  +0.000003]  ? asm_exc_invalid_op+0x1a/0x20
> [  +0.000006]  ? place_entity+0x127/0x130
> [  +0.000003]  ? place_entity+0x99/0x130
> [  +0.000004]  reweight_entity+0x1af/0x1d0
> [  +0.000003]  enqueue_task_fair+0x30c/0x5e0
> [  +0.000005]  enqueue_task+0x35/0x150
> [  +0.000004]  activate_task+0x3a/0x60
> [  +0.000003]  sched_balance_rq+0x7c6/0xee0
> [  +0.000008]  sched_balance_domains+0x25b/0x350
> [  +0.000005]  handle_softirqs+0xcf/0x280
> [  +0.000006]  __irq_exit_rcu+0x8d/0xb0
> [  +0.000003]  sysvec_apic_timer_interrupt+0x71/0x90
> [  +0.000003]  </IRQ>
> [  +0.000002]  <TASK>
> [  +0.000002]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
> [  +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20
> [  +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0>
> [  +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202
> [  +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: ffff9ed7c0647830
> [  +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 00000000000017b4
> [  +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 0000000000000000
> [  +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 0000000000000000
> [  +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
> [  +0.000006]  default_idle+0x9/0x20
> [  +0.000003]  default_idle_call+0x29/0x100
> [  +0.000002]  do_idle+0x1fe/0x240
> [  +0.000005]  cpu_startup_entry+0x29/0x30
> [  +0.000003]  start_secondary+0x11e/0x140
> [  +0.000004]  common_startup_64+0x13e/0x141
> [  +0.000007]  </TASK>
> [  +0.000001] ---[ end trace 0000000000000000 ]---
> 
> Not yet bisected which change causes it.


I am seeing the same on Tegra. I have not looked to see which change 
this is yet either.

Jon

-- 
nvpublic

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Ron Economos]

On 1/21/25 23:04, Jon Hunter wrote:
> Hi Greg,
>
> On 21/01/2025 21:46, Salvatore Bonaccorso wrote:
>> Hi Greg,
>>
>> On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
>>> This is the start of the stable review cycle for the 6.12.11 release.
>>> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
>>> and the diffstat can be found below.
>>
>> Built and lightly tested, when booting I'm noticing the following in
>> dmesg:
>>
>> [  +0.007932] ------------[ cut here ]------------
>> [  +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250 
>> place_entity+0x127/0x130
>> [  +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E) 
>> xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) >
>> [  +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted: 
>> G            E      6.12.11-rc1+ #1
>> [  +0.000004] Tainted: [E]=UNSIGNED_MODULE
>> [  +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), 
>> BIOS 1.16.2-debian-1.16.2-1 04/01/2014
>> [  +0.000002] RIP: 0010:place_entity+0x127/0x130
>> [  +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9 
>> 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4>
>> [  +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046
>> [  +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX: 
>> 00000000000000c2
>> [  +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI: 
>> 000000000078cfd5
>> [  +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09: 
>> 0000000000000002
>> [  +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12: 
>> ffff9ed83bd360c0
>> [  +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15: 
>> 000000000016e360
>> [  +0.000003] FS:  0000000000000000(0000) GS:ffff9ed83bd00000(0000) 
>> knlGS:0000000000000000
>> [  +0.000002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
>> [  +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4: 
>> 0000000000350ef0
>> [  +0.000003] Call Trace:
>> [  +0.000003]  <IRQ>
>> [  +0.000002]  ? place_entity+0x127/0x130
>> [  +0.000002]  ? __warn.cold+0x93/0xf6
>> [  +0.000004]  ? place_entity+0x127/0x130
>> [  +0.000003]  ? report_bug+0xff/0x140
>> [  +0.000005]  ? handle_bug+0x58/0x90
>> [  +0.000002]  ? exc_invalid_op+0x17/0x70
>> [  +0.000003]  ? asm_exc_invalid_op+0x1a/0x20
>> [  +0.000006]  ? place_entity+0x127/0x130
>> [  +0.000003]  ? place_entity+0x99/0x130
>> [  +0.000004]  reweight_entity+0x1af/0x1d0
>> [  +0.000003]  enqueue_task_fair+0x30c/0x5e0
>> [  +0.000005]  enqueue_task+0x35/0x150
>> [  +0.000004]  activate_task+0x3a/0x60
>> [  +0.000003]  sched_balance_rq+0x7c6/0xee0
>> [  +0.000008]  sched_balance_domains+0x25b/0x350
>> [  +0.000005]  handle_softirqs+0xcf/0x280
>> [  +0.000006]  __irq_exit_rcu+0x8d/0xb0
>> [  +0.000003]  sysvec_apic_timer_interrupt+0x71/0x90
>> [  +0.000003]  </IRQ>
>> [  +0.000002]  <TASK>
>> [  +0.000002]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
>> [  +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20
>> [  +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90 
>> 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0>
>> [  +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202
>> [  +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX: 
>> ffff9ed7c0647830
>> [  +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI: 
>> 00000000000017b4
>> [  +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09: 
>> 0000000000000000
>> [  +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12: 
>> 0000000000000000
>> [  +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15: 
>> 0000000000000000
>> [  +0.000006]  default_idle+0x9/0x20
>> [  +0.000003]  default_idle_call+0x29/0x100
>> [  +0.000002]  do_idle+0x1fe/0x240
>> [  +0.000005]  cpu_startup_entry+0x29/0x30
>> [  +0.000003]  start_secondary+0x11e/0x140
>> [  +0.000004]  common_startup_64+0x13e/0x141
>> [  +0.000007]  </TASK>
>> [  +0.000001] ---[ end trace 0000000000000000 ]---
>>
>> Not yet bisected which change causes it.
>
>
> I am seeing the same on Tegra. I have not looked to see which change 
> this is yet either.
>
> Jon
>
Seeing this on RISC-V also.

Jan 21 23:51:10 riscv64 kernel: WARNING: CPU: 3 PID: 16 at 
kernel/sched/fair.c:5250 place_entity+0x108/0x110
Jan 21 23:51:10 riscv64 kernel: Modules linked in:
Jan 21 23:51:10 riscv64 kernel: CPU: 3 UID: 0 PID: 16 Comm: rcu_preempt 
Not tainted 6.12.11-rc1 #2
Jan 21 23:51:10 riscv64 kernel: Hardware name: SiFive HiFive Unmatched 
A00 (DT)
Jan 21 23:51:10 riscv64 kernel: epc : place_entity+0x108/0x110
Jan 21 23:51:10 riscv64 kernel:  ra : place_entity+0x9c/0x110
Jan 21 23:51:10 riscv64 kernel: epc : ffffffff8006ed68 ra : 
ffffffff8006ecfc sp : ffffffc60009bac0
Jan 21 23:51:10 riscv64 kernel:  gp : ffffffff81fa6318 tp : 
ffffffd680323b00 t0 : 0000000000000000
Jan 21 23:51:10 riscv64 kernel:  t1 : 0000000000000000 t2 : 
0000000000000000 s0 : ffffffc60009bb00
Jan 21 23:51:10 riscv64 kernel:  s1 : ffffffd6809f5000 a0 : 
000000000053b491 a1 : 0000000000000000
Jan 21 23:51:10 riscv64 kernel:  a2 : 0000000000000002 a3 : 
0000000000000000 a4 : 0000000000000000
Jan 21 23:51:10 riscv64 kernel:  a5 : 0000000000000000 a6 : 
0000000000000000 a7 : 0000000000000000
Jan 21 23:51:10 riscv64 kernel:  s2 : 0000000031acb37b s3 : 
0000000000000000 s4 : 000000000006920d
Jan 21 23:51:10 riscv64 kernel:  s5 : ffffffd9fedb2a00 s6 : 
ffffffd9fedb2900 s7 : ffffffd6829cbb00
Jan 21 23:51:10 riscv64 kernel:  s8 : 0000000000000000 s9 : 
0000000000000001 s10: 0000000000000201
Jan 21 23:51:10 riscv64 kernel:  s11: 0000000000000000 t3 : 
0000000000000000 t4 : 0000000000000000
Jan 21 23:51:10 riscv64 kernel:  t5 : 0000000000000000 t6 : 0000000000000000
Jan 21 23:51:10 riscv64 kernel: status: 0000000200000100 badaddr: 
0000000000000002 cause: 0000000000000003
Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006ed68>] 
place_entity+0x108/0x110
Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006efe2>] 
reweight_entity+0x182/0x1b0
Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006f0c8>] 
update_cfs_group+0x78/0xa8
Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006fc4c>] 
dequeue_entities+0x114/0x3d8
Jan 21 23:51:10 riscv64 kernel: [<ffffffff80070084>] 
pick_task_fair+0xb4/0x110
Jan 21 23:51:10 riscv64 kernel: [<ffffffff80077a3c>] 
pick_next_task_fair+0x1c/0x2f0
Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc5556>] __schedule+0x176/0xc20
Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc6022>] schedule+0x22/0x148
Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dcc072>] 
schedule_timeout+0x82/0x178
Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cb996>] 
rcu_gp_fqs_loop+0x346/0x4e8
Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cea62>] 
rcu_gp_kthread+0x12a/0x150
Jan 21 23:51:10 riscv64 kernel: [<ffffffff8004db58>] kthread+0xc8/0xe8
Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dceefe>] ret_from_fork+0xe/0x18
Jan 21 23:51:10 riscv64 kernel: ---[ end trace 0000000000000000 ]---

Reverting commit 11d21f2ae4a254aeef84fcf7b6314f5dd045151f "sched/fair: 
Fix EEVDF entity placement bug causing scheduling lag" removes the warning.

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Greg Kroah-Hartman]

On Wed, Jan 22, 2025 at 01:01:42AM -0800, Ron Economos wrote:
> On 1/21/25 23:04, Jon Hunter wrote:
> > Hi Greg,
> > 
> > On 21/01/2025 21:46, Salvatore Bonaccorso wrote:
> > > Hi Greg,
> > > 
> > > On Tue, Jan 21, 2025 at 06:50:48PM +0100, Greg Kroah-Hartman wrote:
> > > > This is the start of the stable review cycle for the 6.12.11 release.
> > > > There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
> > > > and the diffstat can be found below.
> > > 
> > > Built and lightly tested, when booting I'm noticing the following in
> > > dmesg:
> > > 
> > > [  +0.007932] ------------[ cut here ]------------
> > > [  +0.000003] WARNING: CPU: 1 PID: 0 at kernel/sched/fair.c:5250
> > > place_entity+0x127/0x130
> > > [  +0.000006] Modules linked in: ahci(E) libahci(E) crc32_pclmul(E)
> > > xhci_hcd(E) libata(E) psmouse(E) crc32c_intel(E) >
> > > [  +0.000021] CPU: 1 UID: 0 PID: 0 Comm: swapper/1 Tainted:
> > > G            E      6.12.11-rc1+ #1
> > > [  +0.000004] Tainted: [E]=UNSIGNED_MODULE
> > > [  +0.000002] Hardware name: QEMU Standard PC (Q35 + ICH9, 2009),
> > > BIOS 1.16.2-debian-1.16.2-1 04/01/2014
> > > [  +0.000002] RIP: 0010:place_entity+0x127/0x130
> > > [  +0.000003] Code: 01 6b 28 c6 43 52 00 5b 5d 41 5c 41 5d 41 5e e9
> > > 2f 83 bc 00 b9 02 00 00 00 49 c1 ee 0a 49 39 ce 4>
> > > [  +0.000002] RSP: 0018:ffffbe1f400f8d08 EFLAGS: 00010046
> > > [  +0.000003] RAX: 0000000000000000 RBX: ffff9ed7c0c0f200 RCX:
> > > 00000000000000c2
> > > [  +0.000002] RDX: 0000000000000000 RSI: 000000000000001d RDI:
> > > 000000000078cfd5
> > > [  +0.000002] RBP: 0000000029d40d60 R08: 00000000a8e83f00 R09:
> > > 0000000000000002
> > > [  +0.000002] R10: 00000000006e3ab2 R11: ffff9ed7d4056690 R12:
> > > ffff9ed83bd360c0
> > > [  +0.000002] R13: 0000000000000000 R14: 00000000000000c2 R15:
> > > 000000000016e360
> > > [  +0.000003] FS:  0000000000000000(0000) GS:ffff9ed83bd00000(0000)
> > > knlGS:0000000000000000
> > > [  +0.000002] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
> > > [  +0.000002] CR2: 00007f9f5a7245d8 CR3: 0000000100bfc000 CR4:
> > > 0000000000350ef0
> > > [  +0.000003] Call Trace:
> > > [  +0.000003]  <IRQ>
> > > [  +0.000002]  ? place_entity+0x127/0x130
> > > [  +0.000002]  ? __warn.cold+0x93/0xf6
> > > [  +0.000004]  ? place_entity+0x127/0x130
> > > [  +0.000003]  ? report_bug+0xff/0x140
> > > [  +0.000005]  ? handle_bug+0x58/0x90
> > > [  +0.000002]  ? exc_invalid_op+0x17/0x70
> > > [  +0.000003]  ? asm_exc_invalid_op+0x1a/0x20
> > > [  +0.000006]  ? place_entity+0x127/0x130
> > > [  +0.000003]  ? place_entity+0x99/0x130
> > > [  +0.000004]  reweight_entity+0x1af/0x1d0
> > > [  +0.000003]  enqueue_task_fair+0x30c/0x5e0
> > > [  +0.000005]  enqueue_task+0x35/0x150
> > > [  +0.000004]  activate_task+0x3a/0x60
> > > [  +0.000003]  sched_balance_rq+0x7c6/0xee0
> > > [  +0.000008]  sched_balance_domains+0x25b/0x350
> > > [  +0.000005]  handle_softirqs+0xcf/0x280
> > > [  +0.000006]  __irq_exit_rcu+0x8d/0xb0
> > > [  +0.000003]  sysvec_apic_timer_interrupt+0x71/0x90
> > > [  +0.000003]  </IRQ>
> > > [  +0.000002]  <TASK>
> > > [  +0.000002]  asm_sysvec_apic_timer_interrupt+0x1a/0x20
> > > [  +0.000002] RIP: 0010:pv_native_safe_halt+0xf/0x20
> > > [  +0.000004] Code: 22 d7 e9 b4 01 01 00 0f 1f 40 00 90 90 90 90 90
> > > 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa eb 0>
> > > [  +0.000002] RSP: 0018:ffffbe1f400bbed8 EFLAGS: 00000202
> > > [  +0.000003] RAX: 0000000000000001 RBX: ffff9ed7c033e600 RCX:
> > > ffff9ed7c0647830
> > > [  +0.000001] RDX: 0000000000000000 RSI: 0000000000000001 RDI:
> > > 00000000000017b4
> > > [  +0.000002] RBP: 0000000000000001 R08: 0000000000000001 R09:
> > > 0000000000000000
> > > [  +0.000002] R10: 0000000000000001 R11: 0000000000000000 R12:
> > > 0000000000000000
> > > [  +0.000001] R13: 0000000000000000 R14: 0000000000000000 R15:
> > > 0000000000000000
> > > [  +0.000006]  default_idle+0x9/0x20
> > > [  +0.000003]  default_idle_call+0x29/0x100
> > > [  +0.000002]  do_idle+0x1fe/0x240
> > > [  +0.000005]  cpu_startup_entry+0x29/0x30
> > > [  +0.000003]  start_secondary+0x11e/0x140
> > > [  +0.000004]  common_startup_64+0x13e/0x141
> > > [  +0.000007]  </TASK>
> > > [  +0.000001] ---[ end trace 0000000000000000 ]---
> > > 
> > > Not yet bisected which change causes it.
> > 
> > 
> > I am seeing the same on Tegra. I have not looked to see which change
> > this is yet either.
> > 
> > Jon
> > 
> Seeing this on RISC-V also.
> 
> Jan 21 23:51:10 riscv64 kernel: WARNING: CPU: 3 PID: 16 at
> kernel/sched/fair.c:5250 place_entity+0x108/0x110
> Jan 21 23:51:10 riscv64 kernel: Modules linked in:
> Jan 21 23:51:10 riscv64 kernel: CPU: 3 UID: 0 PID: 16 Comm: rcu_preempt Not
> tainted 6.12.11-rc1 #2
> Jan 21 23:51:10 riscv64 kernel: Hardware name: SiFive HiFive Unmatched A00
> (DT)
> Jan 21 23:51:10 riscv64 kernel: epc : place_entity+0x108/0x110
> Jan 21 23:51:10 riscv64 kernel:  ra : place_entity+0x9c/0x110
> Jan 21 23:51:10 riscv64 kernel: epc : ffffffff8006ed68 ra : ffffffff8006ecfc
> sp : ffffffc60009bac0
> Jan 21 23:51:10 riscv64 kernel:  gp : ffffffff81fa6318 tp : ffffffd680323b00
> t0 : 0000000000000000
> Jan 21 23:51:10 riscv64 kernel:  t1 : 0000000000000000 t2 : 0000000000000000
> s0 : ffffffc60009bb00
> Jan 21 23:51:10 riscv64 kernel:  s1 : ffffffd6809f5000 a0 : 000000000053b491
> a1 : 0000000000000000
> Jan 21 23:51:10 riscv64 kernel:  a2 : 0000000000000002 a3 : 0000000000000000
> a4 : 0000000000000000
> Jan 21 23:51:10 riscv64 kernel:  a5 : 0000000000000000 a6 : 0000000000000000
> a7 : 0000000000000000
> Jan 21 23:51:10 riscv64 kernel:  s2 : 0000000031acb37b s3 : 0000000000000000
> s4 : 000000000006920d
> Jan 21 23:51:10 riscv64 kernel:  s5 : ffffffd9fedb2a00 s6 : ffffffd9fedb2900
> s7 : ffffffd6829cbb00
> Jan 21 23:51:10 riscv64 kernel:  s8 : 0000000000000000 s9 : 0000000000000001
> s10: 0000000000000201
> Jan 21 23:51:10 riscv64 kernel:  s11: 0000000000000000 t3 : 0000000000000000
> t4 : 0000000000000000
> Jan 21 23:51:10 riscv64 kernel:  t5 : 0000000000000000 t6 : 0000000000000000
> Jan 21 23:51:10 riscv64 kernel: status: 0000000200000100 badaddr:
> 0000000000000002 cause: 0000000000000003
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006ed68>]
> place_entity+0x108/0x110
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006efe2>]
> reweight_entity+0x182/0x1b0
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006f0c8>]
> update_cfs_group+0x78/0xa8
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff8006fc4c>]
> dequeue_entities+0x114/0x3d8
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff80070084>]
> pick_task_fair+0xb4/0x110
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff80077a3c>]
> pick_next_task_fair+0x1c/0x2f0
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc5556>] __schedule+0x176/0xc20
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dc6022>] schedule+0x22/0x148
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dcc072>]
> schedule_timeout+0x82/0x178
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cb996>]
> rcu_gp_fqs_loop+0x346/0x4e8
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff800cea62>]
> rcu_gp_kthread+0x12a/0x150
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff8004db58>] kthread+0xc8/0xe8
> Jan 21 23:51:10 riscv64 kernel: [<ffffffff80dceefe>] ret_from_fork+0xe/0x18
> Jan 21 23:51:10 riscv64 kernel: ---[ end trace 0000000000000000 ]---
> 
> Reverting commit 11d21f2ae4a254aeef84fcf7b6314f5dd045151f "sched/fair: Fix
> EEVDF entity placement bug causing scheduling lag" removes the warning.

Ah, thanks!  I'll go revert that now and push out a -rc2.

greg k-h

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Naresh Kamboju]

On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman
<gregkh@linuxfoundation.org> wrote:
>
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
> and the diffstat can be found below.
>
> thanks,
>
> greg k-h

Results from Linaro’s test farm.
Regressions on arm64, arm, x86_64, and i386.

The following build warn
WARNING: CPU: 1 PID: 22 at kernel/sched/fair.c:5250 place_entity
(kernel/sched/fair.c:5250 (discriminator 1))

Reported-by: Linux Kernel Functional Testing <lkft@linaro.org>
Boot regression: exception-warning-cpu-pid-at-kernelschedfair-place_entity

Boot log warnings
----------
<4>[  160.693155] ------------[ cut here ]------------
<4>[ 160.694179] WARNING: CPU: 1 PID: 22 at kernel/sched/fair.c:5250
place_entity (kernel/sched/fair.c:5250 (discriminator 1))
<4>[  160.695257] Modules linked in: ip_tables x_tables ipv6
<4>[  160.696471] CPU: 1 UID: 0 PID: 22 Comm: migration/1 Tainted: G
   D          N 6.12.11-rc1 #1
<4>[  160.697345] Tainted: [D]=DIE, [N]=TEST
<4>[  160.697903] Hardware name: linux,dummy-virt (DT)
<4>[ 160.698415] Stopper: migration_cpu_stop+0x0/0x8c8 <- sched_exec
(kernel/sched/core.c:5445)
<4>[  160.699330] pstate: 234020c9 (nzCv daIF +PAN -UAO +TCO +DIT
-SSBS BTYPE=--)
<4>[ 160.700189] pc : place_entity (kernel/sched/fair.c:5250 (discriminator 1))
<4>[ 160.700827] lr : place_entity (kernel/sched/fair.c:292
kernel/sched/fair.c:289 kernel/sched/fair.c:5177)
<4>[  160.701267] sp : ffff8000801e79e0
<4>[  160.701601] x29: ffff8000801e79e0 x28: fff00000cad1d852 x27:
fff00000cad1d8c8
<4>[  160.702716] x26: 0000000000000000 x25: 1ffe0000195a3b00 x24:
0000000000000000
<4>[  160.703741] x23: 0000000000000000 x22: 0000000000231608 x21:
0000000972092cd2
<4>[  160.704817] x20: 0000000000000000 x19: fff00000cad1d800 x18:
1ffff000100f2ec5
<4>[  160.705954] x17: 0000000000000000 x16: fff00000c03a4d3c x15:
0000000000000000
<4>[  160.706967] x14: 1ffe00001b532adb x13: 1ffe000019c18922 x12:
fffd80001982cc21
<4>[  160.708052] x11: 1ffe00001982cc20 x10: fffd80001982cc20 x9 :
dfff800000000000
<4>[  160.709043] x8 : fff00000cc166107 x7 : fff00000cad1d810 x6 :
fffd80001982cc20
<4>[  160.710037] x5 : fff00000cc166100 x4 : 1ffe0000195a3b01 x3 :
1ffe00001b535b92
<4>[  160.711016] x2 : 1ffe00001b535b96 x1 : 000000000000029c x0 :
0000000000000000
<4>[  160.712071] Call trace:
<4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1))
<4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813)
<4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1))
<4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091)
<4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1))
<4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437
(discriminator 1))
<4>[ 160.717432] migration_cpu_stop (kernel/sched/core.c:2481
kernel/sched/core.c:2540)
<4>[ 160.718309] cpu_stopper_thread (kernel/stop_machine.c:511)
<4>[ 160.718871] smpboot_thread_fn (kernel/smpboot.c:164)
<4>[ 160.719699] kthread (kernel/kthread.c:389)
<4>[ 160.720382] ret_from_fork (arch/arm64/kernel/entry.S:861)
<4>[  160.721092] ---[ end trace 0000000000000000 ]---

metadata:
history: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.10-123-gf6b51ed03daa/testrun/26866897/suite/log-parser-boot/test/exception-warning-cpu-pid-at-kernelschedfair-place_entity/history/
boot log: https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.10-123-gf6b51ed03daa/testrun/26866897/suite/log-parser-boot/test/exception-warning-cpu-pid-at-kernelschedfair-place_entity/log


## Build
* kernel: 6.12.11-rc1
* git: https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable-rc.git
* git commit: f6b51ed03daaa30e4c3b3969505cc9b1625babca
* git describe: v6.12.10-123-gf6b51ed03daa
* test details:
https://qa-reports.linaro.org/lkft/linux-stable-rc-linux-6.12.y/build/v6.12.10-123-gf6b51ed03daa

## Test Regressions (compared to v6.12.9-190-gd056ad259f16)

## Metric Regressions (compared to v6.12.9-190-gd056ad259f16)

## Test Fixes (compared to v6.12.9-190-gd056ad259f16)

## Metric Fixes (compared to v6.12.9-190-gd056ad259f16)

## Test result summary
total: 117171, pass: 90748, fail: 8735, skip: 17614, xfail: 74

## Build Summary
* arc: 6 total, 5 passed, 1 failed
* arm: 143 total, 137 passed, 6 failed
* arm64: 58 total, 56 passed, 2 failed
* i386: 22 total, 19 passed, 3 failed
* mips: 38 total, 33 passed, 5 failed
* parisc: 5 total, 3 passed, 2 failed
* powerpc: 44 total, 40 passed, 4 failed
* riscv: 27 total, 24 passed, 3 failed
* s390: 26 total, 22 passed, 4 failed
* sh: 6 total, 5 passed, 1 failed
* sparc: 5 total, 3 passed, 2 failed
* x86_64: 50 total, 49 passed, 1 failed

## Test suites summary
* boot
* commands
* kselftest-arm64
* kselftest-breakpoints
* kselftest-capabilities
* kselftest-cgroup
* kselftest-clone3
* kselftest-core
* kselftest-cpu-hotplug
* kselftest-cpufreq
* kselftest-efivarfs
* kselftest-exec
* kselftest-filesystems
* kselftest-filesystems-binderfs
* kselftest-filesystems-epoll
* kselftest-firmware
* kselftest-fpu
* kselftest-ftrace
* kselftest-futex
* kselftest-gpio
* kselftest-intel_pstate
* kselftest-ipc
* kselftest-kcmp
* kselftest-kvm
* kselftest-livepatch
* kselftest-membarrier
* kselftest-memfd
* kselftest-mincore
* kselftest-mqueue
* kselftest-net
* kselftest-net-mptcp
* kselftest-openat2
* kselftest-ptrace
* kselftest-rseq
* kselftest-rtc
* kselftest-rust
* kselftest-seccomp
* kselftest-sigaltstack
* kselftest-size
* kselftest-tc-testing
* kselftest-timers
* kselftest-tmpfs
* kselftest-tpm2
* kselftest-user_events
* kselftest-vDSO
* kselftest-x86
* kunit
* kvm-unit-tests
* libgpiod
* libhugetlbfs
* log-parser-boot
* log-parser-build-clang
* log-parser-build-gcc
* log-parser-test
* ltp-capability
* ltp-commands
* ltp-containers
* ltp-controllers
* ltp-cpuhotplug
* ltp-crypto
* ltp-cve
* ltp-dio
* ltp-fcntl-locktests
* ltp-filecaps
* ltp-fs
* ltp-fs_bind
* ltp-fs_perms_simple
* ltp-hugetlb
* ltp-ipc
* ltp-math
* ltp-mm
* ltp-nptl
* ltp-pty
* ltp-sched
* ltp-smoke
* ltp-syscalls
* ltp-tracing
* perf
* rcutorture

--
Linaro LKFT
https://lkft.linaro.org

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Peter Zijlstra]

On Wed, Jan 22, 2025 at 03:34:16PM +0530, Naresh Kamboju wrote:
> On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:
> >
> > This is the start of the stable review cycle for the 6.12.11 release.
> > There are 122 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, 23 Jan 2025 17:45:02 +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/v6.x/stable-review/patch-6.12.11-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-6.12.y
> > and the diffstat can be found below.
> >
> > thanks,
> >
> > greg k-h
> 
> Results from Linaro’s test farm.
> Regressions on arm64, arm, x86_64, and i386.
> 
> The following build warn
> WARNING: CPU: 1 PID: 22 at kernel/sched/fair.c:5250 place_entity
> (kernel/sched/fair.c:5250 (discriminator 1))

Odd, are you seeing the same on .13 ?

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Arnd Bergmann]

On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
> On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman
> <gregkh@linuxfoundation.org> wrote:

> 0000000000000000
> <4>[  160.712071] Call trace:
> <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1))
> <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813)
> <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1))
> <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091)
> <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1))
> <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437
> (discriminator 1))

I don't see anything that immediately sticks out as causing this,
but I do see five scheduler patches backported in stable-rc
on top of v6.12.8, these are the original commits:

66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")
30dd3b13f9de ("sched_ext: keep running prev when prev->scx.slice != 0")
a2a3374c47c4 ("sched_ext: idle: Refresh idle masks during idle-to-idle transitions")
68e449d849fd ("sched_ext: switch class when preempted by higher priority scheduler")
6268d5bc1035 ("sched_ext: Replace rq_lock() to raw_spin_rq_lock() in scx_ops_bypass()")

      Arnd

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Peter Zijlstra]

On Wed, Jan 22, 2025 at 11:56:13AM +0100, Arnd Bergmann wrote:
> On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
> > On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman
> > <gregkh@linuxfoundation.org> wrote:
> 
> > 0000000000000000
> > <4>[  160.712071] Call trace:
> > <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1))
> > <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813)
> > <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1))
> > <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091)
> > <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1))
> > <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437
> > (discriminator 1))
> 
> I don't see anything that immediately sticks out as causing this,
> but I do see five scheduler patches backported in stable-rc
> on top of v6.12.8, these are the original commits:
> 
> 66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")

This one reworks reweight_entity(), but I've been running with that on
top of 13-rc6 for a week or so and not seen this.

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Ron Economos]

On 1/22/25 02:59, Peter Zijlstra wrote:
> On Wed, Jan 22, 2025 at 11:56:13AM +0100, Arnd Bergmann wrote:
>> On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
>>> On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman
>>> <gregkh@linuxfoundation.org> wrote:
>>> 0000000000000000
>>> <4>[  160.712071] Call trace:
>>> <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1))
>>> <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813)
>>> <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1))
>>> <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091)
>>> <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1))
>>> <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437
>>> (discriminator 1))
>> I don't see anything that immediately sticks out as causing this,
>> but I do see five scheduler patches backported in stable-rc
>> on top of v6.12.8, these are the original commits:
>>
>> 66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")
> This one reworks reweight_entity(), but I've been running with that on
> top of 13-rc6 for a week or so and not seen this.

The offending commit is 6d71a9c6160479899ee744d2c6d6602a191deb1f 
"sched/fair: Fix EEVDF entity placement bug causing scheduling lag"

It works fine on 6.13, at least on RISC-V (which is the only arch I test).

It's already been reverted and 6.12.11-rc2 has been pushed out.

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Harshit Mogalapalli]

Hi Greg,

On 21/01/25 23:20, Greg Kroah-Hartman wrote:
> This is the start of the stable review cycle for the 6.12.11 release.
> There are 122 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, 23 Jan 2025 17:45:02 +0000.
> Anything received after that time might be too late.
> 
No problems seen on x86_64 and aarch64 with our testing.

Tested-by: Harshit Mogalapalli <harshit.m.mogalapalli@oracle.com>

Thanks,
Harshit



> The whole patch series can be found in one patch at:
> 	https://www.kernel.org/pub/linux/kernel/v6.x/stable-review/patch-6.12.11-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-6.12.y
> and the diffstat can be found below.
> 

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Mike Galbraith]

On Wed, 2025-01-22 at 03:11 -0800, Ron Economos wrote:
> On 1/22/25 02:59, Peter Zijlstra wrote:
> > On Wed, Jan 22, 2025 at 11:56:13AM +0100, Arnd Bergmann wrote:
> > > On Wed, Jan 22, 2025, at 11:04, Naresh Kamboju wrote:
> > > > On Tue, 21 Jan 2025 at 23:28, Greg Kroah-Hartman
> > > > <gregkh@linuxfoundation.org> wrote:
> > > > 0000000000000000
> > > > <4>[  160.712071] Call trace:
> > > > <4>[ 160.712597] place_entity (kernel/sched/fair.c:5250 (discriminator 1))
> > > > <4>[ 160.713221] reweight_entity (kernel/sched/fair.c:3813)
> > > > <4>[ 160.713802] update_cfs_group (kernel/sched/fair.c:3975 (discriminator 1))
> > > > <4>[ 160.714277] dequeue_entities (kernel/sched/fair.c:7091)
> > > > <4>[ 160.714903] dequeue_task_fair (kernel/sched/fair.c:7144 (discriminator 1))
> > > > <4>[ 160.716502] move_queued_task.isra.0 (kernel/sched/core.c:2437
> > > > (discriminator 1))
> > > I don't see anything that immediately sticks out as causing this,
> > > but I do see five scheduler patches backported in stable-rc
> > > on top of v6.12.8, these are the original commits:
> > >
> > > 66951e4860d3 ("sched/fair: Fix update_cfs_group() vs DELAY_DEQUEUE")
> > This one reworks reweight_entity(), but I've been running with that on
> > top of 13-rc6 for a week or so and not seen this.
>
> The offending commit is 6d71a9c6160479899ee744d2c6d6602a191deb1f
> "sched/fair: Fix EEVDF entity placement bug causing scheduling lag"
>
> It works fine on 6.13, at least on RISC-V (which is the only arch I test).

Seems 6.13 is gripe free thanks to it containing 4423af84b297.

I stumbled upon a reproducer for my x86_64 desktop box: all I need do
is fire up a kvm guest in an enterprise configured host.  That inspires
libvirt goop to engage group scheduling, splat follows instantly.

Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree
containing 6d71a9c61604, it stops doing so.

> It's already been reverted and 6.12.11-rc2 has been pushed out.

So stable should perhaps take 4423af84b297 along with 6d71a9c61604?

	-Mike

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Peter Zijlstra]

On Tue, Jan 28, 2025 at 12:46:07PM +0100, Mike Galbraith wrote:

> Seems 6.13 is gripe free thanks to it containing 4423af84b297.
> 
> I stumbled upon a reproducer for my x86_64 desktop box: all I need do
> is fire up a kvm guest in an enterprise configured host.  That inspires
> libvirt goop to engage group scheduling, splat follows instantly.
> 
> Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree
> containing 6d71a9c61604, it stops doing so.

Ooh, does something like the below (+- reverse-renames as applicable to
.12) also help?

---
diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index b67222dea491..8766f7d3d297 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3781,6 +3781,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
 		update_entity_lag(cfs_rq, se);
 		se->deadline -= se->vruntime;
 		se->rel_deadline = 1;
+		cfs_rq->nr_queued--;
 		if (!curr)
 			__dequeue_entity(cfs_rq, se);
 		update_load_sub(&cfs_rq->load, se->load.weight);
@@ -3811,6 +3812,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
 		place_entity(cfs_rq, se, 0);
 		if (!curr)
 			__enqueue_entity(cfs_rq, se);
+		cfs_rq->nr_queued++;
 
 		/*
 		 * The entity's vruntime has been adjusted, so let's check

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Mike Galbraith]

On Tue, 2025-01-28 at 15:39 +0100, Peter Zijlstra wrote:
> On Tue, Jan 28, 2025 at 12:46:07PM +0100, Mike Galbraith wrote:
> 
> > Seems 6.13 is gripe free thanks to it containing 4423af84b297.
> > 
> > I stumbled upon a reproducer for my x86_64 desktop box: all I need do
> > is fire up a kvm guest in an enterprise configured host.  That inspires
> > libvirt goop to engage group scheduling, splat follows instantly.
> > 
> > Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree
> > containing 6d71a9c61604, it stops doing so.
> 
> Ooh, does something like the below (+- reverse-renames as applicable to
> .12) also help?

Yup, seems to, 6.13 sans 4423af84b297 stopped griping.

> ---
> diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
> index b67222dea491..8766f7d3d297 100644
> --- a/kernel/sched/fair.c
> +++ b/kernel/sched/fair.c
> @@ -3781,6 +3781,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
>                 update_entity_lag(cfs_rq, se);
>                 se->deadline -= se->vruntime;
>                 se->rel_deadline = 1;
> +               cfs_rq->nr_queued--;
>                 if (!curr)
>                         __dequeue_entity(cfs_rq, se);
>                 update_load_sub(&cfs_rq->load, se->load.weight);
> @@ -3811,6 +3812,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
>                 place_entity(cfs_rq, se, 0);
>                 if (!curr)
>                         __enqueue_entity(cfs_rq, se);
> +               cfs_rq->nr_queued++;
>  
>                 /*
>                  * The entity's vruntime has been adjusted, so let's check

[tip: sched/urgent] sched/fair: Adhere to place_entity() constraints

[tip-bot2 for Peter Zijlstra]

The following commit has been merged into the sched/urgent branch of tip:

Commit-ID:     55294004b122c997591d9de8446f5a4c60402805
Gitweb:        https://git.kernel.org/tip/55294004b122c997591d9de8446f5a4c60402805
Author:        Peter Zijlstra <peterz@infradead.org>
AuthorDate:    Tue, 28 Jan 2025 15:39:49 +01:00
Committer:     Peter Zijlstra <peterz@infradead.org>
CommitterDate: Sat, 08 Feb 2025 15:43:12 +01:00

sched/fair: Adhere to place_entity() constraints

Mike reports that commit 6d71a9c61604 ("sched/fair: Fix EEVDF entity
placement bug causing scheduling lag") relies on commit 4423af84b297
("sched/fair: optimize the PLACE_LAG when se->vlag is zero") to not
trip a WARN in place_entity().

What happens is that the lag of the very last entity is 0 per
definition -- the average of one element matches the value of that
element. Therefore place_entity() will match the condition skipping
the lag adjustment:

  if (sched_feat(PLACE_LAG) && cfs_rq->nr_queued && se->vlag) {

Without the 'se->vlag' condition -- it will attempt to adjust the zero
lag even though we're inserting into an empty tree.

Notably, we should have failed the 'cfs_rq->nr_queued' condition, but
don't because they didn't get updated.

Additionally, move update_load_add() after placement() as is
consistent with other place_entity() users -- this change is
non-functional, place_entity() does not use cfs_rq->load.

Fixes: 6d71a9c61604 ("sched/fair: Fix EEVDF entity placement bug causing scheduling lag")
Reported-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Cc: stable@vger.kernel.org
Link: https://lkml.kernel.org/r/20250128143949.GD7145@noisy.programming.kicks-ass.net
---
 kernel/sched/fair.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/kernel/sched/fair.c b/kernel/sched/fair.c
index f4e4d3e..d0b10e1 100644
--- a/kernel/sched/fair.c
+++ b/kernel/sched/fair.c
@@ -3782,6 +3782,7 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
 		update_entity_lag(cfs_rq, se);
 		se->deadline -= se->vruntime;
 		se->rel_deadline = 1;
+		cfs_rq->nr_queued--;
 		if (!curr)
 			__dequeue_entity(cfs_rq, se);
 		update_load_sub(&cfs_rq->load, se->load.weight);
@@ -3808,10 +3809,11 @@ static void reweight_entity(struct cfs_rq *cfs_rq, struct sched_entity *se,
 
 	enqueue_load_avg(cfs_rq, se);
 	if (se->on_rq) {
-		update_load_add(&cfs_rq->load, se->load.weight);
 		place_entity(cfs_rq, se, 0);
+		update_load_add(&cfs_rq->load, se->load.weight);
 		if (!curr)
 			__enqueue_entity(cfs_rq, se);
+		cfs_rq->nr_queued++;
 
 		/*
 		 * The entity's vruntime has been adjusted, so let's check

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Mushahid Hussain]

> On Tue, 2025-01-28 at 15:39 +0100, Peter Zijlstra wrote:
> > On Tue, Jan 28, 2025 at 12:46:07PM +0100, Mike Galbraith wrote:
> >
> >> Seems 6.13 is gripe free thanks to it containing 4423af84b297.
> >>
> >> I stumbled upon a reproducer for my x86_64 desktop box: all I need do
> >> is fire up a kvm guest in an enterprise configured host.  That inspires
> >> libvirt goop to engage group scheduling, splat follows instantly.
> >>
> >> Back 4423af84b297 out of 6.13, it starts griping, add it to a 6.12 tree
> >> containing 6d71a9c61604, it stops doing so.
> >
> > Ooh, does something like the below (+- reverse-renames as applicable to
> > .12) also help?

>Yup, seems to, 6.13 sans 4423af84b297 stopped griping.

Hi Peter,
Are there any plans to backport this patch and 6d71a9c61604 into LTS versions
as well? I'm seeing the exact same issue on 6.6 as well, where the bug in
reweight results in incorrect vruntime calculation, leading to the deadline
always being in future, rather than decreasing on each scheduler tick. This
causes a task to run for a longer amount of time, starving other tasks on
the runqueue.

The issue disappears when testing with 4423af84b297 and your patch to avoid
tripping on WARN in place_entity(). I'm happy to push the backported patches
into 6.12 and 6.6, if that's alright.

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[Mushahid Hussain]

> The following commit has been merged into the sched/urgent branch of tip:
> 
> Commit-ID:     55294004b122c997591d9de8446f5a4c60402805
> Gitweb:        https://git.kernel.org/tip/55294004b122c997591d9de8446f5a4c60402805
> Author:        Peter Zijlstra <peterz@infradead.org>
> AuthorDate:    Tue, 28 Jan 2025 15:39:49 +01:00
> Committer:     Peter Zijlstra <peterz@infradead.org>
> CommitterDate: Sat, 08 Feb 2025 15:43:12 +01:00

Was this merged to sched/urgent or any other branches/RCs? Given gitweb link
sends me to "Bad commit reference". I don't see this commit in sched/urgent:
https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=sched%2Furgent

Re: [PATCH 6.12 000/122] 6.12.11-rc1 review

[David Woodhouse]

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On Fri, 2025-05-23 at 16:01 +0000, Mushahid Hussain wrote:
> > The following commit has been merged into the sched/urgent branch of tip:
> > 
> > Commit-ID:     55294004b122c997591d9de8446f5a4c60402805
> > Gitweb:        https://git.kernel.org/tip/55294004b122c997591d9de8446f5a4c60402805
> > Author:        Peter Zijlstra <peterz@infradead.org>
> > AuthorDate:    Tue, 28 Jan 2025 15:39:49 +01:00
> > Committer:     Peter Zijlstra <peterz@infradead.org>
> > CommitterDate: Sat, 08 Feb 2025 15:43:12 +01:00
> 
> Was this merged to sched/urgent or any other branches/RCs? Given gitweb link
> sends me to "Bad commit reference". I don't see this commit in sched/urgent:
> https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git/log/?h=sched%2Furgent

I think something weird has just happened to the tip tree. All the
tip/x86/* branches also seem to have been reset to Linux 6.15-rc6.

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