linux-2.6-microblaze.git
6 weeks agospi: rpc-if: Add resume support for RZ/G3E
Mark Brown [Tue, 23 Sep 2025 08:57:52 +0000 (10:57 +0200)]
spi: rpc-if: Add resume support for RZ/G3E

Merge series from Biju Das <biju.das.jz@bp.renesas.com>:

On RZ/G3E using PSCI, s2ram powers down the SoC. After resume,
reinitialize the hardware for SPI operations.

Also Replace the macro SIMPLE_DEV_PM_OPS->DEFINE_SIMPLE_DEV_PM_OPS macro
and use pm_sleep_ptr(). This lets us drop the check for CONFIG_PM_SLEEP
and __maybe_unused attribute from PM functions.

6 weeks agoVirtio SPI Linux driver
Mark Brown [Tue, 23 Sep 2025 08:57:45 +0000 (10:57 +0200)]
Virtio SPI Linux driver

Merge series from Haixu Cui <quic_haixcui@quicinc.com>:

This is the 10th version of the virtio SPI Linux driver patch series which is
intended to be compliant with the upcoming virtio specification
version 1.4. The specification can be found in repository:
https://github.com/oasis-tcs/virtio-spec.git branch virtio-1.4.

6 weeks agospi: multi CS cleanup and controller CS limit
Mark Brown [Tue, 23 Sep 2025 08:29:10 +0000 (10:29 +0200)]
spi: multi CS cleanup and controller CS limit

Merge series from Jonas Gorski <jonas.gorski@gmail.com>:

This series aims at cleaning up the current multi CS parts and removing
the CS limit per controller that was introduced with the multi CS
support.

To do this, store the assigned chip selects per device in
spi_device::num_chipselects, which allows us to use that instead of
SPI_CS_CNT_MAX for most loops, as well as remove the check for
SPI_INVALID_CS for any chip select.

This should hopefully make it obvious that SPI_CS_CNT_MAX only limits
accesses to arrays indexed by the number of chip selects of a device,
not the controller, and we can remove the check for
spi_controller::num_chipselects being less than SPI_CS_CNT_MAX in device
registration (which was the wrong place to do that anyway).

After having done that, we can reduce SPI_CS_CNT_MAX again to 4 without
breaking devices on higher CS lines.

Finally, rename SPI_CS_CNT_MAX to SPI_DEVICE_CNT_MAX to make it more
clear that this limit only applies to devices, not controllers.

There are still more issues left, but these can be addressed in future
submissions:

* The code allows multi-cs devices for any controller, as long as the
  device does not set parallel-memories.
* No current spi controller driver handles logical chip selects other
  than the first one, and always use it, regardless what cs_index_mask
  says.
* While most spi controllers should be able to handle devices that have
  multiple cs that just get enabled selectively, but not at the same
  time, there is no way to tell that to the core (ties into the above).
* There is no parallel memories/multi cs flag for devices, so any
  implementing driver needs to check the device tree node, making it
  impossible to register these kind of devices via platform code.

6 weeks agospi: ljca: Remove Wentong's e-mail address
Sakari Ailus [Mon, 22 Sep 2025 12:06:31 +0000 (15:06 +0300)]
spi: ljca: Remove Wentong's e-mail address

Wentong's e-mail address no longer works, remove it.

Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
Link: https://patch.msgid.link/20250922120632.10460-4-sakari.ailus@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: rename SPI_CS_CNT_MAX => SPI_DEVICE_CS_CNT_MAX
Jonas Gorski [Mon, 15 Sep 2025 18:37:25 +0000 (20:37 +0200)]
spi: rename SPI_CS_CNT_MAX => SPI_DEVICE_CS_CNT_MAX

Rename SPI_CS_CNT_MAX to SPI_DEVICE_CS_CNT_MAX to make it more obvious
that this is the max number of CS per device supported, not per
controller.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-8-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: reduce device chip select limit again
Jonas Gorski [Mon, 15 Sep 2025 18:37:24 +0000 (20:37 +0200)]
spi: reduce device chip select limit again

The spi chipselect limit SPI_CS_CNT_MAX was raised with commit
2f8c7c3715f2 ("spi: Raise limit on number of chip selects") from 4 to 16
to accommodate spi controllers with more than 4 chip selects, and then
later to 24 with commit 96893cdd4760 ("spi: Raise limit on number of
chip selects to 24").

Now that we removed SPI_CS_CNT_MAX limiting the chip selects of
controllers, we can reduce the amount of chip selects per device again
to 4, the original value.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-7-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: don't check spi_controller::num_chipselect when parsing a dt device
Jonas Gorski [Mon, 15 Sep 2025 18:37:23 +0000 (20:37 +0200)]
spi: don't check spi_controller::num_chipselect when parsing a dt device

Do not validate spi_controller::num_chipselect against SPI_CS_CNT_MAX
when parsing an spi device firmware node.

Firstly this is the wrong place, and this should be done while
registering/validating the controller. Secondly, there is no reason for
that check, as SPI_CS_CNT_MAX controls the amount of chipselects a
device may have, not a controller may have.

So drop that check as it needlessly limits controllers to SPI_CS_CNT_MAX
number of chipselects.

Likewise, drop the check for number of device chipselects larger than
controller's number of chipselects, as __spi_add_device() will already
catch that as either one of the chip selects will be out of range, or
there is a duplicate one.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-6-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: drop check for validity of device chip selects
Jonas Gorski [Mon, 15 Sep 2025 18:37:22 +0000 (20:37 +0200)]
spi: drop check for validity of device chip selects

Now that we know the number of chip selects of a device, we can assume
these are valid, and do not need to check them first.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-5-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: move unused device CS initialization to __spi_add_device()
Jonas Gorski [Mon, 15 Sep 2025 18:37:21 +0000 (20:37 +0200)]
spi: move unused device CS initialization to __spi_add_device()

Using spi_device::num_chipselect, initialize unused device CS as invalid
at registration time in __spi_add_device(), and drop it from the
different allocation paths.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-4-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: keep track of number of chipselects in spi_device
Jonas Gorski [Mon, 15 Sep 2025 18:37:20 +0000 (20:37 +0200)]
spi: keep track of number of chipselects in spi_device

There are several places where we need to iterate over a device's
chipselect. To be able to do it efficiently, store the number of
chipselects in spi_device, like we do for controllers.

Since we now use a device supplied value, add a check to make sure it
isn't more than we can support.

Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-3-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: fix return code when spi device has too many chipselects
Jonas Gorski [Mon, 15 Sep 2025 18:37:19 +0000 (20:37 +0200)]
spi: fix return code when spi device has too many chipselects

Don't return a positive value when there are too many chipselects.

Fixes: 4d8ff6b0991d ("spi: Add multi-cs memories support in SPI core")
Signed-off-by: Jonas Gorski <jonas.gorski@gmail.com>
Link: https://patch.msgid.link/20250915183725.219473-2-jonas.gorski@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agoSPI: Add virtio SPI driver
Haixu Cui [Mon, 8 Sep 2025 09:23:48 +0000 (17:23 +0800)]
SPI: Add virtio SPI driver

This is the virtio SPI Linux kernel driver.

Signed-off-by: Haixu Cui <quic_haixcui@quicinc.com>
Link: https://patch.msgid.link/20250908092348.1283552-4-quic_haixcui@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agovirtio-spi: Add virtio-spi.h
Haixu Cui [Mon, 8 Sep 2025 09:23:47 +0000 (17:23 +0800)]
virtio-spi: Add virtio-spi.h

Add virtio-spi.h header for virtio SPI.

Signed-off-by: Haixu Cui <quic_haixcui@quicinc.com>
Link: https://patch.msgid.link/20250908092348.1283552-3-quic_haixcui@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agovirtio: Add ID for virtio SPI
Haixu Cui [Mon, 8 Sep 2025 09:23:46 +0000 (17:23 +0800)]
virtio: Add ID for virtio SPI

Add VIRTIO_ID_SPI definition for virtio SPI.

Signed-off-by: Haixu Cui <quic_haixcui@quicinc.com>
Reviewed-by: Viresh Kumar <viresh.kumar@linaro.org>
Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Link: https://patch.msgid.link/20250908092348.1283552-2-quic_haixcui@quicinc.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: rpc-if: Add resume support for RZ/G3E
Biju Das [Sun, 21 Sep 2025 11:26:46 +0000 (12:26 +0100)]
spi: rpc-if: Add resume support for RZ/G3E

On RZ/G3E using PSCI, s2ram powers down the SoC. After resume,
reinitialize the hardware for SPI operations.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250921112649.104516-3-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: rpc-if: Drop deprecated SIMPLE_DEV_PM_OPS
Biju Das [Sun, 21 Sep 2025 11:26:45 +0000 (12:26 +0100)]
spi: rpc-if: Drop deprecated SIMPLE_DEV_PM_OPS

Replace SIMPLE_DEV_PM_OPS->DEFINE_SIMPLE_DEV_PM_OPS macro and use
pm_sleep_ptr(). This lets us drop the check for CONFIG_PM_SLEEP, and
reduces kernel size in case CONFIG_PM or CONFIG_PM_SLEEP is disabled,
while increasing build coverage.

Also drop the __maybe_unused attribute from PM functions.

Signed-off-by: Biju Das <biju.das.jz@bp.renesas.com>
Link: https://patch.msgid.link/20250921112649.104516-2-biju.das.jz@bp.renesas.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agoLinux 6.17-rc7
Linus Torvalds [Sun, 21 Sep 2025 22:08:52 +0000 (15:08 -0700)]
Linux 6.17-rc7

6 weeks agoMerge tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 21 Sep 2025 18:11:07 +0000 (11:11 -0700)]
Merge tag 'clk-fixes-for-linus' of git://git./linux/kernel/git/clk/linux

Pull clk fixes from Stephen Boyd:
 "Fixes to the Allwinner and Renesas clk drivers:

   - Do the math properly in Allwinner's ccu_mp_recalc_rate() so clk
     rates aren't bogus

   - Fix a clock domain regression on Renesas R-Car M1A, R-Car H1,
     and RZ/A1 by registering the domain after the pmdomain bus is
     registered instead of before"

* tag 'clk-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux:
  clk: sunxi-ng: mp: Fix dual-divider clock rate readback
  clk: renesas: mstp: Add genpd OF provider at postcore_initcall()

6 weeks agoMerge tag 'for-6.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sun, 21 Sep 2025 04:41:26 +0000 (21:41 -0700)]
Merge tag 'for-6.17-rc6-tag' of git://git./linux/kernel/git/kdave/linux

Pull a few more btrfs fixes from David Sterba:

 - in tree-checker, fix wrong size of check for inode ref item

 - in ref-verify, handle combination of mount options that allow
   partially damaged extent tree (reported by syzbot)

 - additional validation of compression mount option to catch invalid
   string as level

* tag 'for-6.17-rc6-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: reject invalid compression level
  btrfs: ref-verify: handle damaged extent root tree
  btrfs: tree-checker: fix the incorrect inode ref size check

6 weeks agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Sun, 21 Sep 2025 02:48:16 +0000 (19:48 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fix from James Bottomley:
 "One driver fix for a dma error checking thinko"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: mcq: Fix memory allocation checks for SQE and CQE

6 weeks agoMerge tag 'firewire-fixes-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Sun, 21 Sep 2025 02:46:57 +0000 (19:46 -0700)]
Merge tag 'firewire-fixes-6.17-rc7' of git://git./linux/kernel/git/ieee1394/linux1394

Pull firewire fix from Takashi Sakamoto:
 "When new structures and events were added to UAPI in v6.5 kernel, the
  required update to the subsystem ABI version returned to userspace
  client was overlooked. The version is now updated"

* tag 'firewire-fixes-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394:
  firewire: core: fix overlooked update of subsystem ABI version

6 weeks agoMerge tag 'x86-urgent-2025-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 20 Sep 2025 16:27:15 +0000 (09:27 -0700)]
Merge tag 'x86-urgent-2025-09-20' of git://git./linux/kernel/git/tip/tip

Pull x86 fix from Ingo Molnar:
 "Fix a SEV-SNP regression when CONFIG_KVM_AMD_SEV is disabled"

* tag 'x86-urgent-2025-09-20' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/sev: Guard sev_evict_cache() with CONFIG_AMD_MEM_ENCRYPT

6 weeks agoMerge tag 'sunxi-clk-fixes-for-6.17' of https://git.kernel.org/pub/scm/linux/kernel...
Stephen Boyd [Sat, 20 Sep 2025 04:28:01 +0000 (21:28 -0700)]
Merge tag 'sunxi-clk-fixes-for-6.17' of https://git./linux/kernel/git/sunxi/linux into clk-fixes

Pull an Allwinner clk driver fix from Chen-Yu Tsai:

 - One fix for the clock rate readback on the recently added dual
   divider clocks

* tag 'sunxi-clk-fixes-for-6.17' of https://git.kernel.org/pub/scm/linux/kernel/git/sunxi/linux:
  clk: sunxi-ng: mp: Fix dual-divider clock rate readback

6 weeks agofirewire: core: fix overlooked update of subsystem ABI version
Takashi Sakamoto [Sat, 20 Sep 2025 02:51:48 +0000 (11:51 +0900)]
firewire: core: fix overlooked update of subsystem ABI version

In kernel v6.5, several functions were added to the cdev layer. This
required updating the default version of subsystem ABI up to 6, but
this requirement was overlooked.

This commit updates the version accordingly.

Fixes: 6add87e9764d ("firewire: cdev: add new version of ABI to notify time stamp at request/response subaction of transaction#")
Link: https://lore.kernel.org/r/20250920025148.163402-1-o-takashi@sakamocchi.jp
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
6 weeks agoMerge tag '6.17-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Fri, 19 Sep 2025 23:11:30 +0000 (16:11 -0700)]
Merge tag '6.17-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - Two unlink fixes: one for rename and one for deferred close

 - Four smbdirect/RDMA fixes: fix buffer leak in negotiate, two fixes
   for races in smbd_destroy, fix offset and length checks in recv_done

* tag '6.17-rc6-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path
  smb: client: fix file open check in __cifs_unlink()
  smb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)
  smb: client: use disable[_delayed]_work_sync in smbdirect.c
  smb: client: fix filename matching of deferred files
  smb: client: let recv_done verify data_offset, data_length and remaining_data_length

6 weeks agoMerge tag 'iommu-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 19 Sep 2025 23:02:48 +0000 (16:02 -0700)]
Merge tag 'iommu-fixes-v6.17-rc6' of git://git./linux/kernel/git/iommu/linux

Pull iommu fixes from Joerg Roedel:

 - Fixes for memory leak and memory corruption bugs on S390 and AMD-Vi

 - Race condition fix in AMD-Vi page table code and S390 device attach
   code

 - Intel VT-d: Fix alignment checks in __domain_mapping()

 - AMD-Vi: Fix potentially incorrect DTE settings when device has
   aliases

* tag 'iommu-fixes-v6.17-rc6' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux:
  iommu/amd/pgtbl: Fix possible race while increase page table level
  iommu/amd: Fix alias device DTE setting
  iommu/s390: Make attach succeed when the device was surprise removed
  iommu/vt-d: Fix __domain_mapping()'s usage of switch_to_super_page()
  iommu/s390: Fix memory corruption when using identity domain
  iommu/amd: Fix ivrs_base memleak in early_amd_iommu_init()

6 weeks agoMerge tag 'block-6.17-20250918' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 19 Sep 2025 19:26:20 +0000 (12:26 -0700)]
Merge tag 'block-6.17-20250918' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:
 "A set of fixes for an issue with md array assembly and drbd for
  devices supporting write zeros"

* tag 'block-6.17-20250918' of git://git.kernel.dk/linux:
  drbd: init queue_limits->max_hw_wzeroes_unmap_sectors parameter
  md: init queue_limits->max_hw_wzeroes_unmap_sectors parameter

6 weeks agoMerge tag 'io_uring-6.17-20250919' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 19 Sep 2025 19:10:49 +0000 (12:10 -0700)]
Merge tag 'io_uring-6.17-20250919' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix for a regression introduced in the io-wq worker creation logic.

 - Remove the allocation cache for the msg_ring io_kiocb allocations. I
   have a suspicion that there's a bug there, and since we just fixed
   one in that area, let's just yank the use of that cache entirely.
   It's not that important, and it kills some code.

 - Treat a closed ring like task exiting in that any requests that
   trigger post that condition should just get canceled. Doesn't fix any
   real issues, outside of having tasks being able to rely on that
   guarantee.

 - Fix for a bug in the network zero-copy notification mechanism, where
   a comparison for matching tctx/ctx for notifications was buggy in
   that it didn't correctly compare with the previous notification.

* tag 'io_uring-6.17-20250919' of git://git.kernel.dk/linux:
  io_uring: fix incorrect io_kiocb reference in io_link_skb
  io_uring/msg_ring: kill alloc_cache for io_kiocb allocations
  io_uring: include dying ring in task_work "should cancel" state
  io_uring/io-wq: fix `max_workers` breakage and `nr_workers` underflow

6 weeks agoMerge tag 'gpio-fixes-for-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 19 Sep 2025 18:39:26 +0000 (11:39 -0700)]
Merge tag 'gpio-fixes-for-v6.17-rc7' of git://git./linux/kernel/git/brgl/linux

Pull gpio fixes from Bartosz Golaszewski:

 - fix an ACPI I2C HID driver breakage due to not initializing a
   structure on the stack and passing garbage down to GPIO core

 - ignore touchpad wakeup on GPD G1619-05

 - fix debouncing configuration when looking up GPIOs in ACPI

* tag 'gpio-fixes-for-v6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux:
  gpiolib: acpi: initialize acpi_gpio_info struct
  gpiolib: acpi: Ignore touchpad wakeup on GPD G1619-05
  gpiolib: acpi: Program debounce when finding GPIO

6 weeks agoMerge tag 'mmc-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc
Linus Torvalds [Fri, 19 Sep 2025 17:30:16 +0000 (10:30 -0700)]
Merge tag 'mmc-v6.17-rc2-2' of git://git./linux/kernel/git/ulfh/mmc

Pull MMC host fixes from Ulf Hansson:

 - mvsdio: Fix dma_unmap_sg() nents value

 - sdhci: Fix clock management for UHS-II

 - sdhci-pci-gli: Fix initialization of UHS-II for GL9767

* tag 'mmc-v6.17-rc2-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/mmc:
  mmc: sdhci-pci-gli: GL9767: Fix initializing the UHS-II interface during a power-on
  mmc: sdhci-uhs2: Fix calling incorrect sdhci_set_clock() function
  mmc: sdhci: Move the code related to setting the clock from sdhci_set_ios_common() into sdhci_set_ios()
  mmc: mvsdio: Fix dma_unmap_sg() nents value

6 weeks agoMerge tag 'pmdomain-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh...
Linus Torvalds [Fri, 19 Sep 2025 17:14:11 +0000 (10:14 -0700)]
Merge tag 'pmdomain-v6.17-rc2' of git://git./linux/kernel/git/ulfh/linux-pm

Pull pmdomain fixes from Ulf Hansson:
 "pmdomain core:
   - Restore behaviour for disabling unused PM domains and introduce the
     GENPD_FLAG_NO_STAY_ON configuration bit

  pmdomain providers:
   - renesas: Don't keep unused PM domains powered-on
   - rockchip: Fix regulator dependency with GENPD_FLAG_NO_STAY_ON"

* tag 'pmdomain-v6.17-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/ulfh/linux-pm:
  pmdomain: renesas: rmobile-sysc: Don't keep unused PM domains powered-on
  pmdomain: renesas: rcar-gen4-sysc: Don't keep unused PM domains powered-on
  pmdomain: renesas: rcar-sysc: Don't keep unused PM domains powered-on
  pmdomain: rockchip: Fix regulator dependency with GENPD_FLAG_NO_STAY_ON
  pmdomain: core: Restore behaviour for disabling unused PM domains
  pmdomain: renesas: rcar-sysc: Make rcar_sysc_onecell_np __initdata

6 weeks agoMerge tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 19 Sep 2025 17:06:51 +0000 (10:06 -0700)]
Merge tag 'loongarch-fixes-6.17-2' of git://git./linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch fixes from Huacai Chen:
 "Fix some build warnings for RUST-enabled objtool check, align ACPI
  structures for ARCH_STRICT_ALIGN, fix an unreliable stack for live
  patching, add some NULL pointer checkings, and fix some bugs around
  KVM"

* tag 'loongarch-fixes-6.17-2' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()
  LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()
  LoongArch: KVM: Fix VM migration failure with PTW enabled
  LoongArch: KVM: Remove unused returns and semicolons
  LoongArch: vDSO: Check kcalloc() result in init_vdso()
  LoongArch: Fix unreliable stack for live patching
  LoongArch: Replace sprintf() with sysfs_emit()
  LoongArch: Check the return value when creating kobj
  LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled
  LoongArch: Update help info of ARCH_STRICT_ALIGN
  LoongArch: Handle jump tables options for RUST
  LoongArch: Make LTO case independent in Makefile
  objtool/LoongArch: Mark special atomic instruction as INSN_BUG type
  objtool/LoongArch: Mark types based on break immediate code

6 weeks agoMerge tag 'v6.17-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Linus Torvalds [Fri, 19 Sep 2025 16:58:21 +0000 (09:58 -0700)]
Merge tag 'v6.17-p3' of git://git./linux/kernel/git/herbert/crypto-2.6

Pull crypto fixes from Herbert Xu:
 "This fixes a NULL pointer dereference in ccp and a couple of bugs in
  the af_alg interface"

* tag 'v6.17-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
  crypto: af_alg - Set merge to zero early in af_alg_sendmsg
  crypto: ccp - Always pass in an error pointer to __sev_platform_shutdown_locked()

6 weeks agoMerge tag 'sound-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Fri, 19 Sep 2025 15:22:07 +0000 (08:22 -0700)]
Merge tag 'sound-6.17-rc7' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes. The volume became higher than wished, but
  nothing really stands out -- all small, nice and smooth.

  A slightly large change is found in qcom USB-audio offload stuff, but
  this is a regression fix specific to this device, hence it should be
  safe to apply at this late stage.

   - Various small fixes for ASoC Cirrus, Realtek, lpass, Intel and
     Qualcomm drivers

   - ASoC SoundWire fixes

   - A few TAS2781 HD-audio side-codec driver fixes

   - A fix for Qualcomm USB-audio offload breakage

   - Usual a few HD-audio quirks"

* tag 'sound-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (35 commits)
  ALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx
  ALSA: hda: intel-dsp-config: Prevent SEGFAULT if ACPI_HANDLE() is NULL
  ALSA: usb: qcom: Fix false-positive address space check
  ASoC: rt5682s: Adjust SAR ADC button mode to fix noise issue
  ASoC: Intel: PTL: Add entry for HDMI-In capture support to non-I2S codec boards.
  ASoC: amd: acp: Fix incorrect retrival of acp_chip_info
  ASoC: Intel: sof_sdw: use PRODUCT_FAMILY for Fatcat series
  ASoC: qcom: sc8280xp: Fix sound card driver name match data for QCS8275
  ALSA: hda/realtek: Fix volume control on Lenovo Thinkbook 13x Gen 4
  ALSA: hda/realtek: Support Lenovo Thinkbook 13x Gen 5
  ALSA: hda: cs35l41: Support Lenovo Thinkbook 13x Gen 5
  ALSA: hda/realtek: Add ALC295 Dell TAS2781 I2C fixup
  ALSA: hda/tas2781: Fix a potential race condition that causes a NULL pointer in case no efi.get_variable exsits
  ASoC: qcom: sc8280xp: Enable DAI format configuration for MI2S interfaces
  ASoC: qcom: q6apm-lpass-dais: Fix missing set_fmt DAI op for I2S
  ASoC: qcom: audioreach: Fix lpaif_type configuration for the I2S interface
  ASoC: Intel: catpt: Expose correct bit depth to userspace
  ALSA: hda/tas2781: Fix the order of TAS2781 calibrated-data
  ASoC: codecs: lpass-wsa-macro: Fix speaker quality distortion
  ASoC: codecs: lpass-rx-macro: Fix playback quality distortion
  ...

6 weeks agoMerge tag 'drm-fixes-2025-09-19' of https://gitlab.freedesktop.org/drm/kernel
Linus Torvalds [Fri, 19 Sep 2025 15:13:46 +0000 (08:13 -0700)]
Merge tag 'drm-fixes-2025-09-19' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Weekly fixes for drm, it's a bit busier than I'd like on the xe side
  this week, but otherwise amdgpu and some smaller fixes for i915/bridge
  and a revert on docs.

  docs:
   - fix docs build regression

  i915:
   - Honor VESA eDP backlight luminance control capability

  bridge:
   - anx7625: Fix NULL pointer dereference with early IRQ
   - cdns-mhdp8546: Fix missing mutex unlock on error path

  xe:
   - Release kobject for the failure path
   - SRIOV PF: Drop rounddown_pow_of_two fair
   - Remove type casting on hwmon
   - Defer free of NVM auxiliary container to device release
   - Fix a NULL vs IS_ERR
   - Add cleanup action in xe_device_sysfs_init
   - Fix error handling if PXP fails to start
   - Set GuC RCS/CCS yield policy

  amdgpu:
   - GC 11.0.1/4 cleaner shader support
   - DC irq fix
   - OD fix

  amdkfd:
   - S0ix fix"

* tag 'drm-fixes-2025-09-19' of https://gitlab.freedesktop.org/drm/kernel:
  drm/amdgpu: suspend KFD and KGD user queues for S0ix
  drm/amdkfd: add proper handling for S0ix
  drm/xe/guc: Set RCS/CCS yield policy
  drm/xe: Fix error handling if PXP fails to start
  drm/xe/sysfs: Add cleanup action in xe_device_sysfs_init
  drm/amd: Only restore cached manual clock settings in restore if OD enabled
  drm/xe: Fix a NULL vs IS_ERR() in xe_vm_add_compute_exec_queue()
  drm: bridge: cdns-mhdp8546: Fix missing mutex unlock on error path
  drm/i915/backlight: Honor VESA eDP backlight luminance control capability
  drm/amd/display: Allow RX6xxx & RX7700 to invoke amdgpu_irq_get/put
  drm/amdgpu/gfx11: Add Cleaner Shader Support for GFX11.0.1/11.0.4 GPUs
  drm: bridge: anx7625: Fix NULL pointer dereference with early IRQ
  drm/xe: defer free of NVM auxiliary container to device release callback
  drm/xe/hwmon: Remove type casting
  drm/xe/pf: Drop rounddown_pow_of_two fair LMEM limitation
  drm/xe/tile: Release kobject for the failure path
  Revert "drm: Add directive to format code in comment"

6 weeks agoAdd QSPI support for sam9x7 and sama7d65 SoCs
Mark Brown [Fri, 19 Sep 2025 14:11:58 +0000 (15:11 +0100)]
Add QSPI support for sam9x7 and sama7d65 SoCs

Merge series from Dharma Balasubiramani <dharma.b@microchip.com>:

This patch series adds support for SAM9X7 and sama7d65 QSPI controller
along with the SoC-specific capabilities.

6 weeks agospi: spi-nxp-fspi: add DTR mode support
Mark Brown [Fri, 19 Sep 2025 14:11:53 +0000 (15:11 +0100)]
spi: spi-nxp-fspi: add DTR mode support

Merge series from Haibo Chen <haibo.chen@nxp.com>:

this patch set add DTR mode support for flexspi.
For DTR mode, flexspi only support 8D-8D-8D mode.

Patch 1~2 extract nxp_fspi_dll_override(), prepare for adding the DTR mode.
        in nor suspend, it will disable DTR mode, and enable DTR mode back
in nor resume. this require the flexspi driver has the ability to
set back to dll override mode in STR mode when clock rate < 100MHz.
Patch 3 Add the DDR LUT command support. flexspi use LUT command to handle
the dtr/str mode.
Patch 4 add the logic of sample clock source selection for STR/DTR mode
STR use the default mode 0, sample based on the internal dummy pad.
DTR use the mode 3, sample based on the external DQS pad, so this
board and device connect the DQS pad.
adjust the clock rate for DTR mode, when detect the DDR LUT command,
flexspi will automatically div 2 of the root clock and output to device.
Patch 5 finally add the DTR support in default after the upper 4 patches's
prepareation. Since lx2160a do not implement DQS pad, so can't support
this DTR mode.

6 weeks agoio_uring: fix incorrect io_kiocb reference in io_link_skb
Yang Xiuwei [Fri, 19 Sep 2025 09:03:52 +0000 (17:03 +0800)]
io_uring: fix incorrect io_kiocb reference in io_link_skb

In io_link_skb function, there is a bug where prev_notif is incorrectly
assigned using 'nd' instead of 'prev_nd'. This causes the context
validation check to compare the current notification with itself instead
of comparing it with the previous notification.

Fix by using the correct prev_nd parameter when obtaining prev_notif.

Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Reviewed-by: Pavel Begunkov <asml.silence@gmail.com>
Fixes: 6fe4220912d19 ("io_uring/notif: implement notification stacking")
Signed-off-by: Jens Axboe <axboe@kernel.dk>
6 weeks agoiommu/amd/pgtbl: Fix possible race while increase page table level
Vasant Hegde [Sat, 13 Sep 2025 06:26:57 +0000 (06:26 +0000)]
iommu/amd/pgtbl: Fix possible race while increase page table level

The AMD IOMMU host page table implementation supports dynamic page table levels
(up to 6 levels), starting with a 3-level configuration that expands based on
IOVA address. The kernel maintains a root pointer and current page table level
to enable proper page table walks in alloc_pte()/fetch_pte() operations.

The IOMMU IOVA allocator initially starts with 32-bit address and onces its
exhuasted it switches to 64-bit address (max address is determined based
on IOMMU and device DMA capability). To support larger IOVA, AMD IOMMU
driver increases page table level.

But in unmap path (iommu_v1_unmap_pages()), fetch_pte() reads
pgtable->[root/mode] without lock. So its possible that in exteme corner case,
when increase_address_space() is updating pgtable->[root/mode], fetch_pte()
reads wrong page table level (pgtable->mode). It does compare the value with
level encoded in page table and returns NULL. This will result is
iommu_unmap ops to fail and upper layer may retry/log WARN_ON.

CPU 0                                         CPU 1
------                                       ------
map pages                                    unmap pages
alloc_pte() -> increase_address_space()      iommu_v1_unmap_pages() -> fetch_pte()
  pgtable->root = pte (new root value)
                                             READ pgtable->[mode/root]
       Reads new root, old mode
  Updates mode (pgtable->mode += 1)

Since Page table level updates are infrequent and already synchronized with a
spinlock, implement seqcount to enable lock-free read operations on the read path.

Fixes: 754265bcab7 ("iommu/amd: Fix race in increase_address_space()")
Reported-by: Alejandro Jimenez <alejandro.j.jimenez@oracle.com>
Cc: stable@vger.kernel.org
Cc: Joao Martins <joao.m.martins@oracle.com>
Cc: Suravee Suthikulpanit <suravee.suthikulpanit@amd.com>
Signed-off-by: Vasant Hegde <vasant.hegde@amd.com>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
6 weeks agoMerge tag 'amd-drm-fixes-6.17-2025-09-18' of https://gitlab.freedesktop.org/agd5f...
Dave Airlie [Fri, 19 Sep 2025 01:53:08 +0000 (11:53 +1000)]
Merge tag 'amd-drm-fixes-6.17-2025-09-18' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.17-2025-09-18:

amdgpu:
- GC 11.0.1/4 cleaner shader support
- DC irq fix
- OD fix

amdkfd:
- S0ix fix

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://lore.kernel.org/r/20250918191428.2553105-1-alexander.deucher@amd.com
6 weeks agoMerge tag 'drm-xe-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/xe/kernel...
Dave Airlie [Fri, 19 Sep 2025 01:19:36 +0000 (11:19 +1000)]
Merge tag 'drm-xe-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-fixes

- Release kobject for the failure path (Shuicheng)
- SRIOV PF: Drop rounddown_pow_of_two fair (Michal)
- Remove type casting on hwmon (Mallesh)
- Defer free of NVM auxiliary container to device release (Nitin)
- Fix a NULL vs IS_ERR (Dan)
- Add cleanup action in xe_device_sysfs_init (Zongyao)
- Fix error handling if PXP fails to start (Daniele)
- Set GuC RCS/CCS yield policy (Daniele)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rodrigo Vivi <rodrigo.vivi@intel.com>
Link: https://lore.kernel.org/r/aMwL7vxFP1L94IML@intel.com
6 weeks agoMerge tag 'drm-misc-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/misc...
Dave Airlie [Fri, 19 Sep 2025 00:27:57 +0000 (10:27 +1000)]
Merge tag 'drm-misc-fixes-2025-09-18' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

One fix for a documentation warning, a null pointer dereference fix for
anx7625, and a mutex unlock fix for cdns-mhdp8546

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://lore.kernel.org/r/20250918-orthodox-pretty-puma-1ddeea@houat
6 weeks agoMerge tag 'trace-rv-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace...
Linus Torvalds [Thu, 18 Sep 2025 22:22:00 +0000 (15:22 -0700)]
Merge tag 'trace-rv-v6.17-rc5' of git://git./linux/kernel/git/trace/linux-trace

Pull runtime verifier fixes from Steven Rostedt:

 - Fix build in some RISC-V flavours

   Some system calls only are available for the 64bit RISC-V machines.
   #ifdef out the cases of clock_nanosleep and futex in the sleep
   monitor if they are not supported by the architecture.

 - Fix wrong cast, obsolete after refactoring

   Use container_of() to get to the rv_monitor structure from the
   enable_monitors_next() 'p' pointer. The assignment worked only
   because the list field used happened to be the first field of the
   structure.

 - Remove redundant include files

   Some include files were listed twice. Remove the extra ones and sort
   the includes.

 - Fix missing unlock on failure

   There was an error path that exited the rv_register_monitor()
   function without releasing a lock. Change that to goto the lock
   release.

 - Add Gabriele Monaco to be Runtime Verifier maintainer

   Gabriele is doing most of the work on RV as well as collecting
   patches. Add him to the maintainers file for Runtime Verification.

* tag 'trace-rv-v6.17-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rv: Add Gabriele Monaco as maintainer for Runtime Verification
  rv: Fix missing mutex unlock in rv_register_monitor()
  include/linux/rv.h: remove redundant include file
  rv: Fix wrong type cast in enabled_monitors_next()
  rv: Support systems with time64-only syscalls

6 weeks agosmb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path
Stefan Metzmacher [Thu, 18 Sep 2025 01:06:46 +0000 (03:06 +0200)]
smb: client: fix smbdirect_recv_io leak in smbd_negotiate() error path

During tests of another unrelated patch I was able to trigger this
error: Objects remaining on __kmem_cache_shutdown()

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
6 weeks agosmb: client: fix file open check in __cifs_unlink()
Paulo Alcantara [Thu, 18 Sep 2025 15:30:32 +0000 (12:30 -0300)]
smb: client: fix file open check in __cifs_unlink()

Fix the file open check to decide whether or not silly-rename the file
in SMB2+.

Fixes: c5ea3065586d ("smb: client: fix data loss due to broken rename(2)")
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.org>
Cc: Frank Sorenson <sorenson@redhat.com>
Reviewed-by: David Howells <dhowells@redhat.com>
Cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
6 weeks agospi: spi-qpic-snand: simplify clock handling by using devm_clk_get_enabled()
Gabor Juhos [Tue, 16 Sep 2025 17:43:46 +0000 (19:43 +0200)]
spi: spi-qpic-snand: simplify clock handling by using devm_clk_get_enabled()

The devm_clk_get_enabled() function prepares and enables the
particular clock, which then automatically gets disabled and
unprepared on probe failure and on device removal.

Use that function instead of devm_clk_get() and remove the
clk_prepare_enable()/clk_disable_unprepare() calls in order
to simplify the code.

This also ensures that the clocks are handled in the correct
order during device removal.

Signed-off-by: Gabor Juhos <j4g8y7@gmail.com>
Link: https://patch.msgid.link/20250916-qpic-snand-devm_clk_get_enabled-v1-1-09953493b7f1@gmail.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: spi-nxp-fspi: Add OCT-DTR mode support
Haibo Chen [Wed, 17 Sep 2025 07:27:10 +0000 (15:27 +0800)]
spi: spi-nxp-fspi: Add OCT-DTR mode support

Add OCT-DTR mode support in default, since flexspi do not supports
swapping bytes on a 16 bit boundary in OCT-DTR mode, so mark swap16
as false.

lx2160a do not support DQS, so add a quirk to disable DTR mode for this
platform.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250917-flexspi-ddr-v2-5-bb9fe2a01889@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: spi-nxp-fspi: add the support for sample data from DQS pad
Haibo Chen [Wed, 17 Sep 2025 07:27:09 +0000 (15:27 +0800)]
spi: spi-nxp-fspi: add the support for sample data from DQS pad

flexspi define four mode for sample clock source selection.
Here is the list of modes:
mode 0: Dummy Read strobe generated by FlexSPI Controller and loopback
        internally
mode 1: Dummy Read strobe generated by FlexSPI Controller and loopback
        from DQS pad
mode 2: Reserved
mode 3: Flash provided Read strobe and input from DQS pad

In default, flexspi use mode 0 after reset. And for DTR mode, flexspi
only support 8D-8D-8D mode. For 8D-8D-8D mode, IC suggest to use mode 3,
otherwise read always get incorrect data.

For DTR mode, flexspi will automatically div 2 of the root clock
and output to device. the formula is:
    device_clock = root_clock / (is_dtr ? 2 : 1)
So correct the clock rate setting for DTR mode to get the max
performance.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250917-flexspi-ddr-v2-4-bb9fe2a01889@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: spi-nxp-fspi: Add the DDR LUT command support
Haibo Chen [Wed, 17 Sep 2025 07:27:08 +0000 (15:27 +0800)]
spi: spi-nxp-fspi: Add the DDR LUT command support

For DTR mode, flexspi need to use DDR LUT command, flexspi will switch
to DDR mode when detect the DDR LUT command.

Reviewed-by: Frank Li <Frank.Li@nxp.com>
Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Link: https://patch.msgid.link/20250917-flexspi-ddr-v2-3-bb9fe2a01889@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: spi-nxp-fspi: set back to dll override mode when clock rate < 100MHz
Haibo Chen [Wed, 17 Sep 2025 07:27:07 +0000 (15:27 +0800)]
spi: spi-nxp-fspi: set back to dll override mode when clock rate < 100MHz

Preparation of supportting DTR mode. In nor suspend, driver will disable
DTR mode, and enable DTR mode back in nor resume. This require the flexspi
driver has the ability to set back to dll override mode in STR mode when
clock rate < 100MHz.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250917-flexspi-ddr-v2-2-bb9fe2a01889@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: spi-nxp-fspi: extract function nxp_fspi_dll_override()
Haibo Chen [Wed, 17 Sep 2025 07:27:06 +0000 (15:27 +0800)]
spi: spi-nxp-fspi: extract function nxp_fspi_dll_override()

Extract function nxp_fspi_dll_override(), this is the suggested setting
when clock rate < 100MHz. Just the preparation of supportting DTR mode.

Signed-off-by: Haibo Chen <haibo.chen@nxp.com>
Reviewed-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20250917-flexspi-ddr-v2-1-bb9fe2a01889@nxp.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: atmel-quadspi: Add support for sama7d65 QSPI
Varshini Rajendran [Mon, 8 Sep 2025 04:14:20 +0000 (09:44 +0530)]
spi: atmel-quadspi: Add support for sama7d65 QSPI

Add support for sama7d65 QSPI controller and define its caps.

Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Link: https://patch.msgid.link/20250908-microchip-qspi-v2-5-8f3d69fdd5c9@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: atmel-quadspi: add support for SAM9X7 QSPI controller
Varshini Rajendran [Mon, 8 Sep 2025 04:14:19 +0000 (09:44 +0530)]
spi: atmel-quadspi: add support for SAM9X7 QSPI controller

Add support for the QuadSPI controller found on the SAM9X7 SoC.

This controller does not implement pad calibration. It supports
operation up to 100 MHz, and requires the GCK to run at twice
the data rate.

Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Link: https://patch.msgid.link/20250908-microchip-qspi-v2-4-8f3d69fdd5c9@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agospi: atmel-quadspi: add padcalib, 2xgclk, and dllon capabilities
Varshini Rajendran [Mon, 8 Sep 2025 04:14:18 +0000 (09:44 +0530)]
spi: atmel-quadspi: add padcalib, 2xgclk, and dllon capabilities

Introduce capability flags for SoC-specific variations of the QuadSPI
controller:

  - has_padcalib: controller supports pad calibration
  - has_2xgclk: requires GCLK at half the data rate (2x clocking)
  - has_dllon: controller supports DLL clock

Set `has_padcalib` for Octal controllers that provide pad calibration
support. Use `has_2xgclk` for controllers that require the GCLK to run
at twice the data rate. Differentiate SoC integration variants with the
`has_dllon` flag and set it as needed.

Signed-off-by: Varshini Rajendran <varshini.rajendran@microchip.com>
Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Link: https://patch.msgid.link/20250908-microchip-qspi-v2-3-8f3d69fdd5c9@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agodt-bindings: spi: Define sama7d65 QSPI
Dharma Balasubiramani [Mon, 8 Sep 2025 04:14:17 +0000 (09:44 +0530)]
dt-bindings: spi: Define sama7d65 QSPI

sama7d65 has 2 instances of the QSPI controller:

• One Octal Serial Peripheral Interface (QSPI0) supporting DDR. Octal,
Twin-Quad, HyperFlashTM and OctaFlashTM protocols supported.

• One Quad Serial Peripheral Interface (QSPI1) supporting DDR/SDR.

Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250908-microchip-qspi-v2-2-8f3d69fdd5c9@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agodt-bindings: spi: Document sam9x7 QSPI
Dharma Balasubiramani [Mon, 8 Sep 2025 04:14:16 +0000 (09:44 +0530)]
dt-bindings: spi: Document sam9x7 QSPI

Document the sam9x7 quad spi that supports interface to serial memories
operating in

- Single-bit SPI, Dual SPI, Quad SPI and Octal SPI
- Single Data Rate or Double Data Rate modes

Signed-off-by: Dharma Balasubiramani <dharma.b@microchip.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/20250908-microchip-qspi-v2-1-8f3d69fdd5c9@microchip.com
Signed-off-by: Mark Brown <broonie@kernel.org>
6 weeks agorv: Add Gabriele Monaco as maintainer for Runtime Verification
Steven Rostedt [Thu, 11 Sep 2025 15:57:44 +0000 (11:57 -0400)]
rv: Add Gabriele Monaco as maintainer for Runtime Verification

Gabriele will start taking over managing the changes to the Runtime
Verification. Make him officially one of the maintainers.

Cc: Gabriele Monaco <gmonaco@redhat.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/20250911115744.66ccade3@gandalf.local.home
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
6 weeks agoio_uring/msg_ring: kill alloc_cache for io_kiocb allocations
Jens Axboe [Thu, 18 Sep 2025 19:59:15 +0000 (13:59 -0600)]
io_uring/msg_ring: kill alloc_cache for io_kiocb allocations

A recent commit:

fc582cd26e88 ("io_uring/msg_ring: ensure io_kiocb freeing is deferred for RCU")

fixed an issue with not deferring freeing of io_kiocb structs that
msg_ring allocates to after the current RCU grace period. But this only
covers requests that don't end up in the allocation cache. If a request
goes into the alloc cache, it can get reused before it is sane to do so.
A recent syzbot report would seem to indicate that there's something
there, however it may very well just be because of the KASAN poisoning
that the alloc_cache handles manually.

Rather than attempt to make the alloc_cache sane for that use case, just
drop the usage of the alloc_cache for msg_ring request payload data.

Fixes: 50cf5f3842af ("io_uring/msg_ring: add an alloc cache for io_kiocb entries")
Link: https://lore.kernel.org/io-uring/68cc2687.050a0220.139b6.0005.GAE@google.com/
Reported-by: syzbot+baa2e0f4e02df602583e@syzkaller.appspotmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
6 weeks agoALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx
Praful Adiga [Thu, 18 Sep 2025 16:40:18 +0000 (12:40 -0400)]
ALSA: hda/realtek: Fix mute led for HP Laptop 15-dw4xx

This laptop uses the ALC236 codec with COEF 0x7 and idx 1 to
control the mute LED. Enable the existing quirk for this device.

Signed-off-by: Praful Adiga <praful.adiga@gmail.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
6 weeks agodrm/amdgpu: suspend KFD and KGD user queues for S0ix
Alex Deucher [Wed, 17 Sep 2025 16:42:11 +0000 (12:42 -0400)]
drm/amdgpu: suspend KFD and KGD user queues for S0ix

We need to make sure the user queues are preempted so
GFX can enter gfxoff.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Tested-by: David Perry <david.perry@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit f8b367e6fa1716cab7cc232b9e3dff29187fc99d)
Cc: stable@vger.kernel.org
6 weeks agodrm/amdkfd: add proper handling for S0ix
Alex Deucher [Wed, 17 Sep 2025 16:42:09 +0000 (12:42 -0400)]
drm/amdkfd: add proper handling for S0ix

When in S0i3, the GFX state is retained, so all we need to do
is stop the runlist so GFX can enter gfxoff.

Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Tested-by: David Perry <david.perry@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
(cherry picked from commit 4bfa8609934dbf39bbe6e75b4f971469384b50b1)
Cc: stable@vger.kernel.org
6 weeks agoMerge tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 18 Sep 2025 17:22:02 +0000 (10:22 -0700)]
Merge tag 'net-6.17-rc7' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from wireless. No known regressions at this point.

  Current release - fix to a fix:

   - eth: Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"

   - wifi: iwlwifi: pcie: fix byte count table for 7000/8000 devices

   - net: clear sk->sk_ino in sk_set_socket(sk, NULL), fix CRIU

  Previous releases - regressions:

   - bonding: set random address only when slaves already exist

   - rxrpc: fix untrusted unsigned subtract

   - eth:
       - ice: fix Rx page leak on multi-buffer frames
       - mlx5: don't return mlx5_link_info table when speed is unknown

  Previous releases - always broken:

   - tls: make sure to abort the stream if headers are bogus

   - tcp: fix null-deref when using TCP-AO with TCP_REPAIR

   - dpll: fix skipping last entry in clock quality level reporting

   - eth: qed: don't collect too many protection override GRC elements,
     fix memory corruption"

* tag 'net-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (51 commits)
  octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()
  cnic: Fix use-after-free bugs in cnic_delete_task
  devlink rate: Remove unnecessary 'static' from a couple places
  MAINTAINERS: update sundance entry
  net: liquidio: fix overflow in octeon_init_instr_queue()
  net: clear sk->sk_ino in sk_set_socket(sk, NULL)
  Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
  selftests: tls: test skb copy under mem pressure and OOB
  tls: make sure to abort the stream if headers are bogus
  selftest: packetdrill: Add tcp_fastopen_server_reset-after-disconnect.pkt.
  tcp: Clear tcp_sk(sk)->fastopen_rsk in tcp_disconnect().
  octeon_ep: fix VF MAC address lifecycle handling
  selftests: bonding: add vlan over bond testing
  bonding: don't set oif to bond dev when getting NS target destination
  net: rfkill: gpio: Fix crash due to dereferencering uninitialized pointer
  net/mlx5e: Add a miss level for ipsec crypto offload
  net/mlx5e: Harden uplink netdev access against device unbind
  MAINTAINERS: make the DPLL entry cover drivers
  doc/netlink: Fix typos in operation attributes
  igc: don't fail igc_probe() on LED setup error
  ...

6 weeks agoMerge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Linus Torvalds [Thu, 18 Sep 2025 16:42:55 +0000 (09:42 -0700)]
Merge tag 'for-linus' of git://git./virt/kvm/kvm

Pull kvm fixes from Paolo Bonzini:
 "These are mostly Oliver's Arm changes: lock ordering fixes for the
  vGIC, and reverts for a buggy attempt to avoid RCU stalls on large
  VMs.

  Arm:

   - Invalidate nested MMUs upon freeing the PGD to avoid WARNs when
     visiting from an MMU notifier

   - Fixes to the TLB match process and TLB invalidation range for
     managing the VCNR pseudo-TLB

   - Prevent SPE from erroneously profiling guests due to UNKNOWN reset
     values in PMSCR_EL1

   - Fix save/restore of host MDCR_EL2 to account for eagerly
     programming at vcpu_load() on VHE systems

   - Correct lock ordering when dealing with VGIC LPIs, avoiding
     scenarios where an xarray's spinlock was nested with a *raw*
     spinlock

   - Permit stage-2 read permission aborts which are possible in the
     case of NV depending on the guest hypervisor's stage-2 translation

   - Call raw_spin_unlock() instead of the internal spinlock API

   - Fix parameter ordering when assigning VBAR_EL1

   - Reverted a couple of fixes for RCU stalls when destroying a stage-2
     page table.

     There appears to be some nasty refcounting / UAF issues lurking in
     those patches and the band-aid we tried to apply didn't hold.

  s390:

   - mm fixes, including userfaultfd bug fix

  x86:

   - Sync the vTPR from the local APIC to the VMCB even when AVIC is
     active.

     This fixes a bug where host updates to the vTPR, e.g. via
     KVM_SET_LAPIC or emulation of a guest access, are lost and result
     in interrupt delivery issues in the guest"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: SVM: Sync TPR from LAPIC into VMCB::V_TPR even if AVIC is active
  Revert "KVM: arm64: Split kvm_pgtable_stage2_destroy()"
  Revert "KVM: arm64: Reschedule as needed when destroying the stage-2 page-tables"
  KVM: arm64: vgic: fix incorrect spinlock API usage
  KVM: arm64: Remove stage 2 read fault check
  KVM: arm64: Fix parameter ordering for VBAR_EL1 assignment
  KVM: arm64: nv: Fix incorrect VNCR invalidation range calculation
  KVM: arm64: vgic-v3: Indicate vgic_put_irq() may take LPI xarray lock
  KVM: arm64: vgic-v3: Don't require IRQs be disabled for LPI xarray lock
  KVM: arm64: vgic-v3: Erase LPIs from xarray outside of raw spinlocks
  KVM: arm64: Spin off release helper from vgic_put_irq()
  KVM: arm64: vgic-v3: Use bare refcount for VGIC LPIs
  KVM: arm64: vgic: Drop stale comment on IRQ active state
  KVM: arm64: VHE: Save and restore host MDCR_EL2 value correctly
  KVM: arm64: Initialize PMSCR_EL1 when in VHE
  KVM: arm64: nv: fix VNCR TLB ASID match logic for non-Global entries
  KVM: s390: Fix FOLL_*/FAULT_FLAG_* confusion
  KVM: s390: Fix incorrect usage of mmu_notifier_register()
  KVM: s390: Fix access to unavailable adapter indicator pages during postcopy
  KVM: arm64: Mark freed S2 MMUs as invalid

6 weeks agoio_uring: include dying ring in task_work "should cancel" state
Jens Axboe [Thu, 18 Sep 2025 16:21:14 +0000 (10:21 -0600)]
io_uring: include dying ring in task_work "should cancel" state

When running task_work for an exiting task, rather than perform the
issue retry attempt, the task_work is canceled. However, this isn't
done for a ring that has been closed. This can lead to requests being
successfully completed post the ring being closed, which is somewhat
confusing and surprising to an application.

Rather than just check the task exit state, also include the ring
ref state in deciding whether or not to terminate a given request when
run from task_work.

Cc: stable@vger.kernel.org # 6.1+
Link: https://github.com/axboe/liburing/discussions/1459
Reported-by: Benedek Thaler <thaler@thaler.hu>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
6 weeks agoMerge tag 'platform-drivers-x86-v6.17-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Thu, 18 Sep 2025 16:22:34 +0000 (09:22 -0700)]
Merge tag 'platform-drivers-x86-v6.17-4' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Ilpo Järvinen:
 "Fixes and new HW support:

   - amd/pmc: Add MECHREVO Yilong15Pro to spurious_8042 list

   - amd/pmf: Support new ACPI ID AMDI0108

   - asus-wmi: Re-add extra keys to ignore_key_wlan quirk

   - oxpec: Add support for AOKZOE A1X and OneXPlayer X1Pro EVA-02"

* tag 'platform-drivers-x86-v6.17-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: asus-wmi: Re-add extra keys to ignore_key_wlan quirk
  platform/x86/amd/pmf: Support new ACPI ID AMDI0108
  platform/x86: oxpec: Add support for AOKZOE A1X
  platform/x86: oxpec: Add support for OneXPlayer X1Pro EVA-02
  platform/x86/amd/pmc: Add MECHREVO Yilong15Pro to spurious_8042 list

6 weeks agoMerge tag 'uml-for-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml...
Linus Torvalds [Thu, 18 Sep 2025 16:18:27 +0000 (09:18 -0700)]
Merge tag 'uml-for-6.17-rc7' of git://git./linux/kernel/git/uml/linux

Pull UML fixes from Johannes Berg:
 "A few fixes for UML, which I'd meant to send earlier but then forgot.

  All of them are pretty long-standing issues that are either not really
  happening (the UAF), in rarely used code (the FD buffer issue), or an
  issue only for some host configurations (the executable stack):

   - mark stack not executable to work on more modern systems with
     selinux

   - fix use-after-free in a virtio error path

   - fix stack buffer overflow in external unix socket FD receive
     function"

* tag 'uml-for-6.17-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/uml/linux:
  um: Fix FD copy size in os_rcv_fd_msg()
  um: virtio_uml: Fix use-after-free after put_device in probe
  um: Don't mark stack executable

6 weeks agoocteontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()
Duoming Zhou [Wed, 17 Sep 2025 06:38:53 +0000 (14:38 +0800)]
octeontx2-pf: Fix use-after-free bugs in otx2_sync_tstamp()

The original code relies on cancel_delayed_work() in otx2_ptp_destroy(),
which does not ensure that the delayed work item synctstamp_work has fully
completed if it was already running. This leads to use-after-free scenarios
where otx2_ptp is deallocated by otx2_ptp_destroy(), while synctstamp_work
remains active and attempts to dereference otx2_ptp in otx2_sync_tstamp().
Furthermore, the synctstamp_work is cyclic, the likelihood of triggering
the bug is nonnegligible.

A typical race condition is illustrated below:

CPU 0 (cleanup)           | CPU 1 (delayed work callback)
otx2_remove()             |
  otx2_ptp_destroy()      | otx2_sync_tstamp()
    cancel_delayed_work() |
    kfree(ptp)            |
                          |   ptp = container_of(...); //UAF
                          |   ptp-> //UAF

This is confirmed by a KASAN report:

BUG: KASAN: slab-use-after-free in __run_timer_base.part.0+0x7d7/0x8c0
Write of size 8 at addr ffff88800aa09a18 by task bash/136
...
Call Trace:
 <IRQ>
 dump_stack_lvl+0x55/0x70
 print_report+0xcf/0x610
 ? __run_timer_base.part.0+0x7d7/0x8c0
 kasan_report+0xb8/0xf0
 ? __run_timer_base.part.0+0x7d7/0x8c0
 __run_timer_base.part.0+0x7d7/0x8c0
 ? __pfx___run_timer_base.part.0+0x10/0x10
 ? __pfx_read_tsc+0x10/0x10
 ? ktime_get+0x60/0x140
 ? lapic_next_event+0x11/0x20
 ? clockevents_program_event+0x1d4/0x2a0
 run_timer_softirq+0xd1/0x190
 handle_softirqs+0x16a/0x550
 irq_exit_rcu+0xaf/0xe0
 sysvec_apic_timer_interrupt+0x70/0x80
 </IRQ>
...
Allocated by task 1:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 __kasan_kmalloc+0x7f/0x90
 otx2_ptp_init+0xb1/0x860
 otx2_probe+0x4eb/0xc30
 local_pci_probe+0xdc/0x190
 pci_device_probe+0x2fe/0x470
 really_probe+0x1ca/0x5c0
 __driver_probe_device+0x248/0x310
 driver_probe_device+0x44/0x120
 __driver_attach+0xd2/0x310
 bus_for_each_dev+0xed/0x170
 bus_add_driver+0x208/0x500
 driver_register+0x132/0x460
 do_one_initcall+0x89/0x300
 kernel_init_freeable+0x40d/0x720
 kernel_init+0x1a/0x150
 ret_from_fork+0x10c/0x1a0
 ret_from_fork_asm+0x1a/0x30

Freed by task 136:
 kasan_save_stack+0x24/0x50
 kasan_save_track+0x14/0x30
 kasan_save_free_info+0x3a/0x60
 __kasan_slab_free+0x3f/0x50
 kfree+0x137/0x370
 otx2_ptp_destroy+0x38/0x80
 otx2_remove+0x10d/0x4c0
 pci_device_remove+0xa6/0x1d0
 device_release_driver_internal+0xf8/0x210
 pci_stop_bus_device+0x105/0x150
 pci_stop_and_remove_bus_device_locked+0x15/0x30
 remove_store+0xcc/0xe0
 kernfs_fop_write_iter+0x2c3/0x440
 vfs_write+0x871/0xd70
 ksys_write+0xee/0x1c0
 do_syscall_64+0xac/0x280
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
...

Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure
that the delayed work item is properly canceled before the otx2_ptp is
deallocated.

This bug was initially identified through static analysis. To reproduce
and test it, I simulated the OcteonTX2 PCI device in QEMU and introduced
artificial delays within the otx2_sync_tstamp() function to increase the
likelihood of triggering the bug.

Fixes: 2958d17a8984 ("octeontx2-pf: Add support for ptp 1-step mode on CN10K silicon")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Reviewed-by: Vadim Fedorenko <vadim.fedorenko@linux.dev>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agocnic: Fix use-after-free bugs in cnic_delete_task
Duoming Zhou [Wed, 17 Sep 2025 05:46:02 +0000 (13:46 +0800)]
cnic: Fix use-after-free bugs in cnic_delete_task

The original code uses cancel_delayed_work() in cnic_cm_stop_bnx2x_hw(),
which does not guarantee that the delayed work item 'delete_task' has
fully completed if it was already running. Additionally, the delayed work
item is cyclic, the flush_workqueue() in cnic_cm_stop_bnx2x_hw() only
blocks and waits for work items that were already queued to the
workqueue prior to its invocation. Any work items submitted after
flush_workqueue() is called are not included in the set of tasks that the
flush operation awaits. This means that after the cyclic work items have
finished executing, a delayed work item may still exist in the workqueue.
This leads to use-after-free scenarios where the cnic_dev is deallocated
by cnic_free_dev(), while delete_task remains active and attempt to
dereference cnic_dev in cnic_delete_task().

A typical race condition is illustrated below:

CPU 0 (cleanup)              | CPU 1 (delayed work callback)
cnic_netdev_event()          |
  cnic_stop_hw()             | cnic_delete_task()
    cnic_cm_stop_bnx2x_hw()  | ...
      cancel_delayed_work()  | /* the queue_delayed_work()
      flush_workqueue()      |    executes after flush_workqueue()*/
                             | queue_delayed_work()
  cnic_free_dev(dev)//free   | cnic_delete_task() //new instance
                             |   dev = cp->dev; //use

Replace cancel_delayed_work() with cancel_delayed_work_sync() to ensure
that the cyclic delayed work item is properly canceled and that any
ongoing execution of the work item completes before the cnic_dev is
deallocated. Furthermore, since cancel_delayed_work_sync() uses
__flush_work(work, true) to synchronously wait for any currently
executing instance of the work item to finish, the flush_workqueue()
becomes redundant and should be removed.

This bug was identified through static analysis. To reproduce the issue
and validate the fix, I simulated the cnic PCI device in QEMU and
introduced intentional delays â€” such as inserting calls to ssleep()
within the cnic_delete_task() function â€” to increase the likelihood
of triggering the bug.

Fixes: fdf24086f475 ("cnic: Defer iscsi connection cleanup")
Signed-off-by: Duoming Zhou <duoming@zju.edu.cn>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agodevlink rate: Remove unnecessary 'static' from a couple places
Cosmin Ratiu [Thu, 18 Sep 2025 10:15:06 +0000 (13:15 +0300)]
devlink rate: Remove unnecessary 'static' from a couple places

devlink_rate_node_get_by_name() and devlink_rate_nodes_destroy() have a
couple of unnecessary static variables for iterating over devlink rates.

This could lead to races/corruption/unhappiness if two concurrent
operations execute the same function.

Remove 'static' from both. It's amazing this was missed for 4+ years.
While at it, I confirmed there are no more examples of this mistake in
net/ with 1, 2 or 3 levels of indentation.

Fixes: a8ecb93ef03d ("devlink: Introduce rate nodes")
Signed-off-by: Cosmin Ratiu <cratiu@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoMAINTAINERS: update sundance entry
Denis Kirjanov [Thu, 18 Sep 2025 09:15:56 +0000 (12:15 +0300)]
MAINTAINERS: update sundance entry

Signed-off-by: Denis Kirjanov <kirjanov@gmail.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: liquidio: fix overflow in octeon_init_instr_queue()
Alexey Nepomnyashih [Wed, 17 Sep 2025 15:30:58 +0000 (15:30 +0000)]
net: liquidio: fix overflow in octeon_init_instr_queue()

The expression `(conf->instr_type == 64) << iq_no` can overflow because
`iq_no` may be as high as 64 (`CN23XX_MAX_RINGS_PER_PF`). Casting the
operand to `u64` ensures correct 64-bit arithmetic.

Fixes: f21fb3ed364b ("Add support of Cavium Liquidio ethernet adapters")
Signed-off-by: Alexey Nepomnyashih <sdl@nppct.ru>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agonet: clear sk->sk_ino in sk_set_socket(sk, NULL)
Eric Dumazet [Wed, 17 Sep 2025 13:53:37 +0000 (13:53 +0000)]
net: clear sk->sk_ino in sk_set_socket(sk, NULL)

Andrei Vagin reported that blamed commit broke CRIU.

Indeed, while we want to keep sk_uid unchanged when a socket
is cloned, we want to clear sk->sk_ino.

Otherwise, sock_diag might report multiple sockets sharing
the same inode number.

Move the clearing part from sock_orphan() to sk_set_socket(sk, NULL),
called both from sock_orphan() and sk_clone_lock().

Fixes: 5d6b58c932ec ("net: lockless sock_i_ino()")
Closes: https://lore.kernel.org/netdev/aMhX-VnXkYDpKd9V@google.com/
Closes: https://github.com/checkpoint-restore/criu/issues/2744
Reported-by: Andrei Vagin <avagin@google.com>
Signed-off-by: Eric Dumazet <edumazet@google.com>
Acked-by: Andrei Vagin <avagin@google.com>
Link: https://patch.msgid.link/20250917135337.1736101-1-edumazet@google.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoRevert "net/mlx5e: Update and set Xon/Xoff upon port speed set"
Tariq Toukan [Wed, 17 Sep 2025 13:48:54 +0000 (16:48 +0300)]
Revert "net/mlx5e: Update and set Xon/Xoff upon port speed set"

This reverts commit d24341740fe48add8a227a753e68b6eedf4b385a.
It causes errors when trying to configure QoS, as well as
loss of L2 connectivity (on multi-host devices).

Reported-by: Jakub Kicinski <kuba@kernel.org>
Link: https://lore.kernel.org/20250910170011.70528106@kernel.org
Fixes: d24341740fe4 ("net/mlx5e: Update and set Xon/Xoff upon port speed set")
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
6 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:25 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_pch_pic_regs_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() out of spinlock
context in function kvm_pch_pic_regs_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_pch_pic_regs_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: d206d95148732 ("LoongArch: KVM: Add PCHPIC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_sw_status_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
funtcion calling of copy_from_user() and copy_to_user() out of function
kvm_eiointc_sw_status_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_sw_status_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_regs_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() before spinlock
context in function kvm_eiointc_ctrl_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_regs_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Avoid copy_*_user() with lock hold in kvm_eiointc_ctrl_access()

Function copy_from_user() and copy_to_user() may sleep because of page
fault, and they cannot be called in spin_lock hold context. Here move
function calling of copy_from_user() and copy_to_user() before spinlock
context in function kvm_eiointc_ctrl_access().

Otherwise there will be possible warning such as:

BUG: sleeping function called from invalid context at include/linux/uaccess.h:192
in_atomic(): 1, irqs_disabled(): 1, non_block: 0, pid: 6292, name: qemu-system-loo
preempt_count: 1, expected: 0
RCU nest depth: 0, expected: 0
INFO: lockdep is turned off.
irq event stamp: 0
hardirqs last  enabled at (0): [<0000000000000000>] 0x0
hardirqs last disabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last  enabled at (0): [<9000000004c4a554>] copy_process+0x90c/0x1d40
softirqs last disabled at (0): [<0000000000000000>] 0x0
CPU: 41 UID: 0 PID: 6292 Comm: qemu-system-loo Tainted: G W 6.17.0-rc3+ #31 PREEMPT(full)
Tainted: [W]=WARN
Stack : 0000000000000076 0000000000000000 9000000004c28264 9000100092ff4000
        9000100092ff7b80 9000100092ff7b88 0000000000000000 9000100092ff7cc8
        9000100092ff7cc0 9000100092ff7cc0 9000100092ff7a00 0000000000000001
        0000000000000001 9000100092ff7b88 947d2f9216a5e8b9 900010008773d880
        00000000ffff8b9f fffffffffffffffe 0000000000000ba1 fffffffffffffffe
        000000000000003e 900000000825a15b 000010007ad38000 9000100092ff7ec0
        0000000000000000 0000000000000000 9000000006f3ac60 9000000007252000
        0000000000000000 00007ff746ff2230 0000000000000053 9000200088a021b0
        0000555556c9d190 0000000000000000 9000000004c2827c 000055556cfb5f40
        00000000000000b0 0000000000000007 0000000000000007 0000000000071c1d
Call Trace:
[<9000000004c2827c>] show_stack+0x5c/0x180
[<9000000004c20fac>] dump_stack_lvl+0x94/0xe4
[<9000000004c99c7c>] __might_resched+0x26c/0x290
[<9000000004f68968>] __might_fault+0x20/0x88
[<ffff800002311de0>] kvm_eiointc_ctrl_access.isra.0+0x88/0x380 [kvm]
[<ffff8000022f8514>] kvm_device_ioctl+0x194/0x290 [kvm]
[<900000000506b0d8>] sys_ioctl+0x388/0x1010
[<90000000063ed210>] do_syscall+0xb0/0x2d8
[<9000000004c25ef8>] handle_syscall+0xb8/0x158

Cc: stable@vger.kernel.org
Fixes: 1ad7efa552fd5 ("LoongArch: KVM: Add EIOINTC user mode read and write functions")
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: KVM: Fix VM migration failure with PTW enabled
Bibo Mao [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Fix VM migration failure with PTW enabled

With PTW disabled system, bit _PAGE_DIRTY is a HW bit for page writing.
However with PTW enabled system, bit _PAGE_WRITE is also a "HW bit" for
page writing, because hardware synchronizes _PAGE_WRITE to _PAGE_DIRTY
automatically. Previously, _PAGE_WRITE is treated as a SW bit to record
the page writeable attribute for the fast page fault handling in the
secondary MMU, however with PTW enabled machine, this bit is used by HW
already (so setting it will silence the TLB modify exception).

Here define KVM_PAGE_WRITEABLE with the SW bit _PAGE_MODIFIED, so that
it can work on both PTW disabled and enabled machines. And for HW write
bits, both _PAGE_DIRTY and _PAGE_WRITE are set or clear together.

Cc: stable@vger.kernel.org
Signed-off-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: KVM: Remove unused returns and semicolons
Tao Cui [Thu, 18 Sep 2025 11:44:22 +0000 (19:44 +0800)]
LoongArch: KVM: Remove unused returns and semicolons

The default branch has already handled all undefined cases, so the final
return statement is redundant. Redundant semicolons are removed, too.

Cc: stable@vger.kernel.org
Reviewed-by: Bibo Mao <maobibo@loongson.cn>
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: vDSO: Check kcalloc() result in init_vdso()
Guangshuo Li [Thu, 18 Sep 2025 11:44:10 +0000 (19:44 +0800)]
LoongArch: vDSO: Check kcalloc() result in init_vdso()

Add a NULL-pointer check after the kcalloc() call in init_vdso(). If
allocation fails, return -ENOMEM to prevent a possible dereference of
vdso_info.code_mapping.pages when it is NULL.

Cc: stable@vger.kernel.org
Fixes: 2ed119aef60d ("LoongArch: Set correct size for vDSO code mapping")
Signed-off-by: Guangshuo Li <202321181@mail.sdu.edu.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Fix unreliable stack for live patching
Tiezhu Yang [Thu, 18 Sep 2025 11:44:08 +0000 (19:44 +0800)]
LoongArch: Fix unreliable stack for live patching

When testing the kernel live patching with "modprobe livepatch-sample",
there is a timeout over 15 seconds from "starting patching transition"
to "patching complete". The dmesg command shows "unreliable stack" for
user tasks in debug mode, here is one of the messages:

  livepatch: klp_try_switch_task: bash:1193 has an unreliable stack

The "unreliable stack" is because it can not unwind from do_syscall()
to its previous frame handle_syscall(). It should use fp to find the
original stack top due to secondary stack in do_syscall(), but fp is
not used for some other functions, then fp can not be restored by the
next frame of do_syscall(), so it is necessary to save fp if task is
not current, in order to get the stack top of do_syscall().

Here are the call chains:

  klp_enable_patch()
    klp_try_complete_transition()
      klp_try_switch_task()
        klp_check_and_switch_task()
          klp_check_stack()
            stack_trace_save_tsk_reliable()
              arch_stack_walk_reliable()

When executing "rmmod livepatch-sample", there exists a similar issue.
With this patch, it takes a short time for patching and unpatching.

Before:

  # modprobe livepatch-sample
  # dmesg -T | tail -3
  [Sat Sep  6 11:00:20 2025] livepatch: 'livepatch_sample': starting patching transition
  [Sat Sep  6 11:00:35 2025] livepatch: signaling remaining tasks
  [Sat Sep  6 11:00:36 2025] livepatch: 'livepatch_sample': patching complete

  # echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled
  # rmmod livepatch_sample
  rmmod: ERROR: Module livepatch_sample is in use
  # rmmod livepatch_sample
  # dmesg -T | tail -3
  [Sat Sep  6 11:06:05 2025] livepatch: 'livepatch_sample': starting unpatching transition
  [Sat Sep  6 11:06:20 2025] livepatch: signaling remaining tasks
  [Sat Sep  6 11:06:21 2025] livepatch: 'livepatch_sample': unpatching complete

After:

  # modprobe livepatch-sample
  # dmesg -T | tail -2
  [Tue Sep 16 16:19:30 2025] livepatch: 'livepatch_sample': starting patching transition
  [Tue Sep 16 16:19:31 2025] livepatch: 'livepatch_sample': patching complete

  # echo 0 > /sys/kernel/livepatch/livepatch_sample/enabled
  # rmmod livepatch_sample
  # dmesg -T | tail -2
  [Tue Sep 16 16:19:36 2025] livepatch: 'livepatch_sample': starting unpatching transition
  [Tue Sep 16 16:19:37 2025] livepatch: 'livepatch_sample': unpatching complete

Cc: stable@vger.kernel.org # v6.9+
Fixes: 199cc14cb4f1 ("LoongArch: Add kernel livepatching support")
Reported-by: Xi Zhang <zhangxi@kylinos.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Replace sprintf() with sysfs_emit()
Tao Cui [Thu, 18 Sep 2025 11:44:04 +0000 (19:44 +0800)]
LoongArch: Replace sprintf() with sysfs_emit()

As Documentation/filesystems/sysfs.rst suggested, show() should only use
sysfs_emit() or sysfs_emit_at() when formatting the value to be returned
to user space.

No functional change intended.

Cc: stable@vger.kernel.org
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Check the return value when creating kobj
Tao Cui [Thu, 18 Sep 2025 11:44:04 +0000 (19:44 +0800)]
LoongArch: Check the return value when creating kobj

Add a check for the return value of kobject_create_and_add(), to ensure
that the kobj allocation succeeds for later use.

Cc: stable@vger.kernel.org
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled
Huacai Chen [Thu, 18 Sep 2025 11:44:01 +0000 (19:44 +0800)]
LoongArch: Align ACPI structures if ARCH_STRICT_ALIGN enabled

ARCH_STRICT_ALIGN is used for hardware without UAL, now it only control
the -mstrict-align flag. However, ACPI structures are packed by default
so will cause unaligned accesses.

To avoid this, define ACPI_MISALIGNMENT_NOT_SUPPORTED in asm/acenv.h to
align ACPI structures if ARCH_STRICT_ALIGN enabled.

Cc: stable@vger.kernel.org
Reported-by: Binbin Zhou <zhoubinbin@loongson.cn>
Suggested-by: Xi Ruoyao <xry111@xry111.site>
Suggested-by: Jiaxun Yang <jiaxun.yang@flygoat.com>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Update help info of ARCH_STRICT_ALIGN
Tiezhu Yang [Thu, 18 Sep 2025 11:43:42 +0000 (19:43 +0800)]
LoongArch: Update help info of ARCH_STRICT_ALIGN

Loongson-3A6000 and 3C6000 CPUs also support unaligned memory access, so
the current description is out of date to some extent.

Actually, all of Loongson-3 series processors based on LoongArch support
unaligned memory access, this hardware capability is indicated by the bit
20 (UAL) of CPUCFG1 register, update the help info to reflect the reality.

Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Handle jump tables options for RUST
Tiezhu Yang [Thu, 18 Sep 2025 11:43:42 +0000 (19:43 +0800)]
LoongArch: Handle jump tables options for RUST

When compiling with LLVM and CONFIG_RUST is set, there exist objtool
warnings in rust/core.o and rust/kernel.o, like this:

    rust/core.o: warning: objtool:
_RNvXs1_NtNtCs5QSdWC790r4_4core5ascii10ascii_charNtB5_9AsciiCharNtNtB9_3fmt5Debug3fmt+0x54:
sibling call from callable instruction with modified stack frame

For this special case, the related object file shows that there is no
generated relocation section '.rela.discard.tablejump_annotate' for the
table jump instruction jirl, thus objtool can not know that what is the
actual destination address.

If rustc has the option "-Cllvm-args=--loongarch-annotate-tablejump",
pass the option to enable jump tables for objtool, otherwise it should
pass "-Zno-jump-tables" to keep compatibility with older rustc.

How to test:

  $ rustup component add rust-src
  $ make LLVM=1 rustavailable
  $ make ARCH=loongarch LLVM=1 clean defconfig
  $ scripts/config -d MODVERSIONS \
    -e RUST -e SAMPLES -e SAMPLES_RUST \
    -e SAMPLE_RUST_CONFIGFS -e SAMPLE_RUST_MINIMAL \
    -e SAMPLE_RUST_MISC_DEVICE -e SAMPLE_RUST_PRINT \
    -e SAMPLE_RUST_DMA -e SAMPLE_RUST_DRIVER_PCI \
    -e SAMPLE_RUST_DRIVER_PLATFORM -e SAMPLE_RUST_DRIVER_FAUX \
    -e SAMPLE_RUST_DRIVER_AUXILIARY -e SAMPLE_RUST_HOSTPROGS
  $ make ARCH=loongarch LLVM=1 olddefconfig all

Cc: stable@vger.kernel.org
Acked-by: Miguel Ojeda <ojeda@kernel.org>
Reported-by: Miguel Ojeda <ojeda@kernel.org>
Closes: https://lore.kernel.org/rust-for-linux/CANiq72mNeCuPkCDrG2db3w=AX+O-zYrfprisDPmRac_qh65Dmg@mail.gmail.com/
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoLoongArch: Make LTO case independent in Makefile
Tiezhu Yang [Thu, 18 Sep 2025 11:43:42 +0000 (19:43 +0800)]
LoongArch: Make LTO case independent in Makefile

LTO is not only used for Clang, but maybe also used for Rust, make LTO
case out of CONFIG_CC_HAS_ANNOTATE_TABLEJUMP in Makefile.

This is preparation for later patch, no function changes.

Cc: stable@vger.kernel.org
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoobjtool/LoongArch: Mark special atomic instruction as INSN_BUG type
Tiezhu Yang [Thu, 18 Sep 2025 11:43:36 +0000 (19:43 +0800)]
objtool/LoongArch: Mark special atomic instruction as INSN_BUG type

When compiling with LLVM and CONFIG_RUST is set, there exists the
following objtool warning:

  rust/compiler_builtins.o: warning: objtool: __rust__unordsf2(): unexpected end of section .text.unlikely.

objdump shows that the end of section .text.unlikely is an atomic
instruction:

  amswap.w        $zero, $ra, $zero

According to the LoongArch Reference Manual, if the amswap.w atomic
memory access instruction has the same register number as rd and rj,
the execution will trigger an Instruction Non-defined Exception, so
mark the above instruction as INSN_BUG type to fix the warning.

Cc: stable@vger.kernel.org
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agoobjtool/LoongArch: Mark types based on break immediate code
Tiezhu Yang [Thu, 18 Sep 2025 11:43:36 +0000 (19:43 +0800)]
objtool/LoongArch: Mark types based on break immediate code

If the break immediate code is 0, it should mark the type as
INSN_TRAP. If the break immediate code is 1, it should mark the
type as INSN_BUG.

While at it, format the code style and add the code comment for nop.

Cc: stable@vger.kernel.org
Suggested-by: WANG Rui <wangrui@loongson.cn>
Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
6 weeks agobtrfs: reject invalid compression level
Qu Wenruo [Mon, 25 Aug 2025 10:26:26 +0000 (19:56 +0930)]
btrfs: reject invalid compression level

Inspired by recent changes to compression level parsing in
6db1df415d73fc ("btrfs: accept and ignore compression level for lzo")
it turns out that we do not do any extra validation for compression
level input string, thus allowing things like "compress=lzo:invalid" to
be accepted without warnings.

Although we accept levels that are beyond the supported algorithm
ranges, accepting completely invalid level specification is not correct.

Fix the too loose checks for compression level, by doing proper error
handling of kstrtoint(), so that we will reject not only too large
values (beyond int range) but also completely wrong levels like
"lzo:invalid".

Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
6 weeks agoselftests: tls: test skb copy under mem pressure and OOB
Jakub Kicinski [Wed, 17 Sep 2025 00:28:14 +0000 (17:28 -0700)]
selftests: tls: test skb copy under mem pressure and OOB

Add a test which triggers mem pressure via OOB writes.

Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250917002814.1743558-2-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
6 weeks agotls: make sure to abort the stream if headers are bogus
Jakub Kicinski [Wed, 17 Sep 2025 00:28:13 +0000 (17:28 -0700)]
tls: make sure to abort the stream if headers are bogus

Normally we wait for the socket to buffer up the whole record
before we service it. If the socket has a tiny buffer, however,
we read out the data sooner, to prevent connection stalls.
Make sure that we abort the connection when we find out late
that the record is actually invalid. Retrying the parsing is
fine in itself but since we copy some more data each time
before we parse we can overflow the allocated skb space.

Constructing a scenario in which we're under pressure without
enough data in the socket to parse the length upfront is quite
hard. syzbot figured out a way to do this by serving us the header
in small OOB sends, and then filling in the recvbuf with a large
normal send.

Make sure that tls_rx_msg_size() aborts strp, if we reach
an invalid record there's really no way to recover.

Reported-by: Lee Jones <lee@kernel.org>
Fixes: 84c61fe1a75b ("tls: rx: do not use the standard strparser")
Reviewed-by: Sabrina Dubroca <sd@queasysnail.net>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Link: https://patch.msgid.link/20250917002814.1743558-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
6 weeks agocrypto: af_alg - Disallow concurrent writes in af_alg_sendmsg
Herbert Xu [Tue, 16 Sep 2025 09:20:59 +0000 (17:20 +0800)]
crypto: af_alg - Disallow concurrent writes in af_alg_sendmsg

Issuing two writes to the same af_alg socket is bogus as the
data will be interleaved in an unpredictable fashion.  Furthermore,
concurrent writes may create inconsistencies in the internal
socket state.

Disallow this by adding a new ctx->write field that indiciates
exclusive ownership for writing.

Fixes: 8ff590903d5 ("crypto: algif_skcipher - User-space interface for skcipher operations")
Reported-by: Muhammad Alifa Ramdhan <ramdhan@starlabs.sg>
Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
6 weeks agocrypto: af_alg - Set merge to zero early in af_alg_sendmsg
Herbert Xu [Tue, 16 Sep 2025 07:42:41 +0000 (15:42 +0800)]
crypto: af_alg - Set merge to zero early in af_alg_sendmsg

If an error causes af_alg_sendmsg to abort, ctx->merge may contain
a garbage value from the previous loop.  This may then trigger a
crash on the next entry into af_alg_sendmsg when it attempts to do
a merge that can't be done.

Fix this by setting ctx->merge to zero near the start of the loop.

Fixes: 8ff590903d5 ("crypto: algif_skcipher - User-space interface for skcipher operations")
Reported-by: Muhammad Alifa Ramdhan <ramdhan@starlabs.sg>
Reported-by: Bing-Jhong Billy Jheng <billy@starlabs.sg>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
6 weeks agoMerge tag 'drm-intel-fixes-2025-09-17' of https://gitlab.freedesktop.org/drm/i915...
Dave Airlie [Thu, 18 Sep 2025 07:36:23 +0000 (17:36 +1000)]
Merge tag 'drm-intel-fixes-2025-09-17' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes

- Honor VESA eDP backlight luminance control capability (Aaron Ma)

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Tvrtko Ursulin <tursulin@igalia.com>
Link: https://lore.kernel.org/r/aMrPx4FZ66t1Kfe-@linux
6 weeks agoMerge tag 'asoc-fix-v6.17-rc6' of https://git.kernel.org/pub/scm/linux/kernel/git...
Takashi Iwai [Thu, 18 Sep 2025 07:11:12 +0000 (09:11 +0200)]
Merge tag 'asoc-fix-v6.17-rc6' of https://git./linux/kernel/git/broonie/sound into for-linus

ASoC: Fixes for v6.17

A pile of fixes that accumilated over the past few -rcs, this is all
driver specifics including a small pile of quirks for new systems.

6 weeks agoMerge tag 'mm-hotfixes-stable-2025-09-17-21-10' of git://git.kernel.org/pub/scm/linux...
Linus Torvalds [Thu, 18 Sep 2025 04:34:26 +0000 (21:34 -0700)]
Merge tag 'mm-hotfixes-stable-2025-09-17-21-10' of git://git./linux/kernel/git/akpm/mm

Pull misc fixes from Andrew Morton:
 "15 hotfixes. 11 are cc:stable and the remainder address post-6.16
  issues or aren't considered necessary for -stable kernels. 13 of these
  fixes are for MM.

  The usual shower of singletons, plus

   - fixes from Hugh to address various misbehaviors in get_user_pages()

   - patches from SeongJae to address a quite severe issue in DAMON

   - another series also from SeongJae which completes some fixes for a
     DAMON startup issue"

* tag 'mm-hotfixes-stable-2025-09-17-21-10' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  zram: fix slot write race condition
  nilfs2: fix CFI failure when accessing /sys/fs/nilfs2/features/*
  samples/damon/mtier: avoid starting DAMON before initialization
  samples/damon/prcl: avoid starting DAMON before initialization
  samples/damon/wsse: avoid starting DAMON before initialization
  MAINTAINERS: add Lance Yang as a THP reviewer
  MAINTAINERS: add Jann Horn as rmap reviewer
  mm/damon/sysfs: use dynamically allocated repeat mode damon_call_control
  mm/damon/core: introduce damon_call_control->dealloc_on_cancel
  mm: folio_may_be_lru_cached() unless folio_test_large()
  mm: revert "mm: vmscan.c: fix OOM on swap stress test"
  mm: revert "mm/gup: clear the LRU flag of a page before adding to LRU batch"
  mm/gup: local lru_add_drain() to avoid lru_add_drain_all()
  mm/gup: check ref_count instead of lru before migration

6 weeks agobtrfs: ref-verify: handle damaged extent root tree
David Sterba [Mon, 15 Sep 2025 06:37:47 +0000 (08:37 +0200)]
btrfs: ref-verify: handle damaged extent root tree

Syzbot hits a problem with enabled ref-verify, ignorebadroots and a
fuzzed/damaged extent tree. There's no fallback option like in other
places that can deal with it so disable the whole ref-verify as it is
just a debugging feature.

Reported-by: syzbot+9c3e0cdfbfe351b0bc0e@syzkaller.appspotmail.com
Link: https://lore.kernel.org/all/0000000000001b6052062139be1c@google.com/
Reviewed-by: Qu Wenruo <wqu@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
6 weeks agobtrfs: tree-checker: fix the incorrect inode ref size check
Qu Wenruo [Mon, 15 Sep 2025 22:24:06 +0000 (07:54 +0930)]
btrfs: tree-checker: fix the incorrect inode ref size check

[BUG]
Inside check_inode_ref(), we need to make sure every structure,
including the btrfs_inode_extref header, is covered by the item.  But
our code is incorrectly using "sizeof(iref)", where @iref is just a
pointer.

This means "sizeof(iref)" will always be "sizeof(void *)", which is much
smaller than "sizeof(struct btrfs_inode_extref)".

This will allow some bad inode extrefs to sneak in, defeating tree-checker.

[FIX]
Fix the typo by calling "sizeof(*iref)", which is the same as
"sizeof(struct btrfs_inode_extref)", and will be the correct behavior we
want.

Fixes: 71bf92a9b877 ("btrfs: tree-checker: Add check for INODE_REF")
CC: stable@vger.kernel.org # 6.1+
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Reviewed-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: Qu Wenruo <wqu@suse.com>
Reviewed-by: David Sterba <dsterba@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>
6 weeks agosmb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)
Stefan Metzmacher [Tue, 12 Aug 2025 11:03:19 +0000 (13:03 +0200)]
smb: client: let smbd_destroy() call disable_work_sync(&info->post_send_credits_work)

In smbd_destroy() we may destroy the memory so we better
wait until post_send_credits_work is no longer pending
and will never be started again.

I actually just hit the case using rxe:

WARNING: CPU: 0 PID: 138 at drivers/infiniband/sw/rxe/rxe_verbs.c:1032 rxe_post_recv+0x1ee/0x480 [rdma_rxe]
...
[ 5305.686979] [    T138]  smbd_post_recv+0x445/0xc10 [cifs]
[ 5305.687135] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687149] [    T138]  ? __kasan_check_write+0x14/0x30
[ 5305.687185] [    T138]  ? __pfx_smbd_post_recv+0x10/0x10 [cifs]
[ 5305.687329] [    T138]  ? __pfx__raw_spin_lock_irqsave+0x10/0x10
[ 5305.687356] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687368] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687378] [    T138]  ? _raw_spin_unlock_irqrestore+0x11/0x60
[ 5305.687389] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687399] [    T138]  ? get_receive_buffer+0x168/0x210 [cifs]
[ 5305.687555] [    T138]  smbd_post_send_credits+0x382/0x4b0 [cifs]
[ 5305.687701] [    T138]  ? __pfx_smbd_post_send_credits+0x10/0x10 [cifs]
[ 5305.687855] [    T138]  ? __pfx___schedule+0x10/0x10
[ 5305.687865] [    T138]  ? __pfx__raw_spin_lock_irq+0x10/0x10
[ 5305.687875] [    T138]  ? queue_delayed_work_on+0x8e/0xa0
[ 5305.687889] [    T138]  process_one_work+0x629/0xf80
[ 5305.687908] [    T138]  ? srso_alias_return_thunk+0x5/0xfbef5
[ 5305.687917] [    T138]  ? __kasan_check_write+0x14/0x30
[ 5305.687933] [    T138]  worker_thread+0x87f/0x1570
...

It means rxe_post_recv was called after rdma_destroy_qp().
This happened because put_receive_buffer() was triggered
by ib_drain_qp() and called:
queue_work(info->workqueue, &info->post_send_credits_work);

Cc: Steve French <smfrench@gmail.com>
Cc: Tom Talpey <tom@talpey.com>
Cc: Long Li <longli@microsoft.com>
Cc: Namjae Jeon <linkinjeon@kernel.org>
Cc: linux-cifs@vger.kernel.org
Cc: samba-technical@lists.samba.org
Fixes: f198186aa9bb ("CIFS: SMBD: Establish SMB Direct connection")
Signed-off-by: Stefan Metzmacher <metze@samba.org>
Signed-off-by: Steve French <stfrench@microsoft.com>