platform/kernel/linux-starfive.git
18 months agopurgatory: fix disabling debug info
Alyssa Ross [Sun, 26 Mar 2023 18:21:21 +0000 (18:21 +0000)]
purgatory: fix disabling debug info

Since 32ef9e5054ec, -Wa,-gdwarf-2 is no longer used in KBUILD_AFLAGS.
Instead, it includes -g, the appropriate -gdwarf-* flag, and also the
-Wa versions of both of those if building with Clang and GNU as.  As a
result, debug info was being generated for the purgatory objects, even
though the intention was that it not be.

Fixes: 32ef9e5054ec ("Makefile.debug: re-enable debug info for .S files")
Signed-off-by: Alyssa Ross <hi@alyssa.is>
Cc: stable@vger.kernel.org
Acked-by: Nick Desaulniers <ndesaulniers@google.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
19 months agoLinux 6.3-rc5
Linus Torvalds [Sun, 2 Apr 2023 21:29:29 +0000 (14:29 -0700)]
Linux 6.3-rc5

19 months agoMerge tag 'for-6.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave...
Linus Torvalds [Sun, 2 Apr 2023 17:57:12 +0000 (10:57 -0700)]
Merge tag 'for-6.3-rc4-tag' of git://git./linux/kernel/git/kdave/linux

Pull btrfs fixes from David Sterba:

 - scan block devices in non-exclusive mode to avoid temporary mkfs
   failures

 - fix race between quota disable and quota assign ioctls

 - fix deadlock when aborting transaction during relocation with scrub

 - ignore fiemap path cache when there are multiple paths for a node

* tag 'for-6.3-rc4-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux:
  btrfs: ignore fiemap path cache when there are multiple paths for a node
  btrfs: fix deadlock when aborting transaction during relocation with scrub
  btrfs: scan device in non-exclusive mode
  btrfs: fix race between quota disable and quota assign ioctls

19 months agoRevert "venus: firmware: Correct non-pix start and end addresses"
Javier Martinez Canillas [Tue, 7 Feb 2023 10:22:54 +0000 (11:22 +0100)]
Revert "venus: firmware: Correct non-pix start and end addresses"

This reverts commit a837e5161cff, which broke probing of the venus
driver, at least on the SC7180 SoC HP X2 Chromebook:

  qcom-venus aa00000.video-codec: Adding to iommu group 11
  qcom-venus aa00000.video-codec: non legacy binding
  qcom-venus aa00000.video-codec: failed to reset venus core
  qcom-venus: probe of aa00000.video-codec failed with error -110

Matthias Kaehlcke also reported that the same change caused a regression
in SC7180 and sc7280, that prevents AOSS from entering sleep mode during
system suspend.  So let's revert this commit for now to fix both issues.

Fixes: a837e5161cff ("venus: firmware: Correct non-pix start and end addresses")
Reported-by: Matthias Kaehlcke <mka@chromium.org>
Signed-off-by: Javier Martinez Canillas <javierm@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
19 months agoMerge tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sun, 2 Apr 2023 17:10:16 +0000 (10:10 -0700)]
Merge tag 'driver-core-6.3-rc5' of git://git./linux/kernel/git/gregkh/driver-core

Pull driver core fixes from Greg KH:
 "Here are three small changes for 6.3-rc5 semi-related to driver core
  stuff:

   - documentation update where we move the security_bugs file to a more
     relevant location.

   - mdt/spi-nor debugfs memory leak fix that's been floating around for
     a long time and acked by the maintainer

   - cacheinfo bugfix for a regression in 6.3-rc1

  All have been in linux-next with no reported problems"

* tag 'driver-core-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/driver-core:
  cacheinfo: Fix LLC is not exported through sysfs
  Documentation/security-bugs: move from admin-guide/ to process/
  mtd: spi-nor: fix memory leak when using debugfs_lookup()

19 months agoMerge tag 'powerpc-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc...
Linus Torvalds [Sun, 2 Apr 2023 17:01:56 +0000 (10:01 -0700)]
Merge tag 'powerpc-6.3-4' of git://git./linux/kernel/git/powerpc/linux

Pull powerpc fixes from Michael Ellerman:

 - Fix a false positive warning in __pte_needs_flush() (with DEBUG_VM=y)

 - Fix oops when a PF_IO_WORKER thread tries to core dump

 - Don't try to reconfigure VAS when it's disabled

Thanks to Benjamin Gray, Haren Myneni, Jens Axboe, Nathan Lynch, and
Russell Currey.

* tag 'powerpc-6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux:
  powerpc/pseries/vas: Ignore VAS update for DLPAR if copy/paste is not enabled
  powerpc: Don't try to copy PPR for task with NULL pt_regs
  powerpc/64s: Fix __pte_needs_flush() false positive warning

19 months agoMerge tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Linus Torvalds [Sat, 1 Apr 2023 21:50:22 +0000 (14:50 -0700)]
Merge tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull cifs client fixes from Steve French:
 "Four cifs/smb3 client (reconnect and DFS related) fixes, including two
  for stable:

   - DFS oops fix

   - DFS reconnect recursion fix

   - An SMB1 parallel reconnect fix

   - Trivial dead code removal in smb2_reconnect"

* tag '6.3-rc4-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: get rid of dead check in smb2_reconnect()
  cifs: prevent infinite recursion in CIFSGetDFSRefer()
  cifs: avoid races in parallel reconnects in smb1
  cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL

19 months agoMerge tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor...
Linus Torvalds [Sat, 1 Apr 2023 21:09:51 +0000 (14:09 -0700)]
Merge tag 'input-for-v6.3-rc4' of git://git./linux/kernel/git/dtor/input

Pull input fixes from Dmitry Torokhov:

 - fixes to ALPS and Focaltech PS/2 drivers dealing with the breakage of
   switching to -funsigned-char

 - quirks to i8042 to better handle Lifebook A574/H and TUXEDO devices

 - a quirk to Goodix touchscreen driver to handle Yoga Book X90F

 - a fix for incorrectly merged patch to xpad game controller driver

* tag 'input-for-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: i8042 - add TUXEDO devices to i8042 quirk tables for partial fix
  Input: alps - fix compatibility with -funsigned-char
  Input: focaltech - use explicitly signed char type
  Input: xpad - fix incorrectly applied patch for MAP_PROFILE_BUTTON
  Input: goodix - add Lenovo Yoga Book X90F to nine_bytes_report DMI table
  Input: i8042 - add quirk for Fujitsu Lifebook A574/H

19 months agoMerge tag 'pinctrl-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw...
Linus Torvalds [Sat, 1 Apr 2023 16:47:08 +0000 (09:47 -0700)]
Merge tag 'pinctrl-v6.3-2' of git://git./linux/kernel/git/linusw/linux-pinctrl

Pull pin control fixes from Linus Walleij:
 "Some pin control fixes for the v6.3 series.

  The most notable and urgent one is probably the AMD fix which affects
  AMD laptops, found by the Chromium people.

  Summary:

   - Fix up the Kconfig options for MediaTek MT7981

   - Fix the irq domain name in the AT91-PIO4 driver

   - Fix some alternative muxing modes in the Ocelot driver

   - Allocate the GPIO numbers dynamically in the STM32 driver

   - Disable and mask interrupts on resume in the AMD driver

   - Fix a typo in the Qualcomm SM8550 pin control device tree bindings"

* tag 'pinctrl-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/linusw/linux-pinctrl:
  dt-bindings: pinctrl: qcom,sm8550-lpass-lpi: allow input-enabled and bias-bus-hold
  pinctrl: amd: Disable and mask interrupts on resume
  pinctrl: stm32: use dynamic allocation of GPIO base
  pinctrl: ocelot: Fix alt mode for ocelot
  pinctrl: at91-pio4: fix domain name assignment
  pinctrl: mediatek: fix naming inconsistency
  pinctrl: mediatek: add missing options to PINCTRL_MT7981

19 months agoMerge tag 'kbuild-fixes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 1 Apr 2023 16:25:17 +0000 (09:25 -0700)]
Merge tag 'kbuild-fixes-v6.3-2' of git://git./linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild fixes from Masahiro Yamada:

 - Fix linux-headers debian package

 - Fix a merge_config.sh error due to a misspelled variable

 - Fix modversion for 32-bit build machines

* tag 'kbuild-fixes-v6.3-2' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild:
  modpost: Fix processing of CRCs on 32-bit build machines
  scripts: merge_config: Fix typo in variable name.
  kbuild: deb-pkg: set version for linux-headers paths

19 months agoMerge tag 'iommu-fixes-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Sat, 1 Apr 2023 16:17:33 +0000 (09:17 -0700)]
Merge tag 'iommu-fixes-6.3-rc4' of git://git./linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Maintainer update for S390 IOMMU driver

 - A fix for the set_platform_dma_ops() call-back in the Exynos
   IOMMU driver

 - Intel VT-d fixes from Lu Baolu:
    - Fix a lockdep splat
    - Fix a supplement of the specification
    - Fix a warning in perfmon code

* tag 'iommu-fixes-6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/vt-d: Fix an IOMMU perfmon warning when CPU hotplug
  iommu/vt-d: Allow zero SAGAW if second-stage not supported
  iommu/vt-d: Remove unnecessary locking in intel_irq_remapping_alloc()
  iommu/exynos: Fix set_platform_dma_ops() callback
  MAINTAINERS: Update s390-iommu driver maintainer information

19 months agomedia: i2c: imx290: fix conditional function defintions
Arnd Bergmann [Tue, 7 Feb 2023 16:13:12 +0000 (17:13 +0100)]
media: i2c: imx290: fix conditional function defintions

The runtime suspend/resume functions are only referenced from the
dev_pm_ops, but they use the old SET_RUNTIME_PM_OPS() helper that
requires a __maybe_unused annotation to avoid a warning:

  drivers/media/i2c/imx290.c:1082:12: error: unused function 'imx290_runtime_resume' [-Werror,-Wunused-function]
  static int imx290_runtime_resume(struct device *dev)
             ^
  drivers/media/i2c/imx290.c:1090:12: error: unused function 'imx290_runtime_suspend' [-Werror,-Wunused-function]
  static int imx290_runtime_suspend(struct device *dev)
             ^

Convert this to the new RUNTIME_PM_OPS() helper that so this is not
required.  To improve this further, also use the pm_ptr() helper that
lets the dev_pm_ops get dropped entirely when CONFIG_PM is disabled.

A related mistake happened in the of_match_ptr() macro here, which like
SET_RUNTIME_PM_OPS() requires the match table to be marked as
__maybe_unused, though I could not reproduce building this without
CONFIG_OF.  Remove the of_match_ptr() here as there is no point in
dropping the match table in configurations without CONFIG_OF.

Fixes: 02852c01f654 ("media: i2c: imx290: Initialize runtime PM before subdev")
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Reported-by: Guenter Roeck <linux@roeck-us.net>
Reported-by: Sudip Mukherjee <sudipm.mukherjee@gmail.com>
Reviewed-by: Manivannan Sadhasivam <mani@kernel.org>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
19 months agoMerge tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs
Linus Torvalds [Fri, 31 Mar 2023 20:22:14 +0000 (13:22 -0700)]
Merge tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client fixes from Anna Schumaker:

 - Fix shutdown of NFS TCP client sockets

 - Fix hangs when recovering open state after a server reboot

* tag 'nfs-for-6.3-3' of git://git.linux-nfs.org/projects/anna/linux-nfs:
  SUNRPC: fix shutdown of NFS TCP client socket
  NFSv4: Fix hangs when recovering open state after a server reboot

19 months agoMerge tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 31 Mar 2023 20:11:06 +0000 (13:11 -0700)]
Merge tag 'platform-drivers-x86-v6.3-4' of git://git./linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from Hans de Goede:

 - Fix a regression in ideapad-laptop which caused the touchpad to stop
   working after a suspend/resume on some models

 - One other small fix and three hw-id additions

* tag 'platform-drivers-x86-v6.3-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86:
  platform/x86: ideapad-laptop: Stop sending KEY_TOUCHPAD_TOGGLE
  platform/x86: asus-nb-wmi: Add quirk_asus_tablet_mode to other ROG Flow X13 models
  platform/x86: gigabyte-wmi: add support for X570S AORUS ELITE
  platform/x86: gigabyte-wmi: add support for B650 AORUS ELITE AX
  platform/x86/intel/pmc: Alder Lake PCH slp_s0_residency fix

19 months agoMerge tag 'pci-v6.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci
Linus Torvalds [Fri, 31 Mar 2023 20:07:01 +0000 (13:07 -0700)]
Merge tag 'pci-v6.3-fixes-1' of git://git./linux/kernel/git/pci/pci

Pull PCI fix from Bjorn Helgaas:

 - Fix DesignWare PORT_LINK_CONTROL setup, which was corrupted when the
   DT "snps,enable-cdm-check" property was present (Yoshihiro Shimoda)

* tag 'pci-v6.3-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI: dwc: Fix PORT_LINK_CONTROL update when CDM check enabled

19 months agoMerge tag 'regulator-fix-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git...
Linus Torvalds [Fri, 31 Mar 2023 20:02:34 +0000 (13:02 -0700)]
Merge tag 'regulator-fix-v6.3-rc4' of git://git./linux/kernel/git/broonie/regulator

Pull regulator fix from Mark Brown:
 "Deferred probe fix for v6.3.

  This fixes a rarely triggered issue where we would treat probe
  deferral for clocks as a fatal error in the fixed regulator, causing
  it to fail to retry when it should"

* tag 'regulator-fix-v6.3-rc4' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/regulator:
  regulator: Handle deferred clk

19 months agoMerge tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 31 Mar 2023 19:35:03 +0000 (12:35 -0700)]
Merge tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux

Pull block fixes from Jens Axboe:

 - NVMe pull request via Christoph:
     - Mark Lexar NM760 as IGNORE_DEV_SUBNQN (Juraj Pecigos)
     - Fix a possible UAF when failing to allocate an TCP io queue (Sagi
       Grimberg)

 - MD pull request via Song:
     - Fix a null pointer deference in 6.3-rc (Yu Kuai)

 - uevent partition fix (Alyssa)

* tag 'block-6.3-2023-03-30' of git://git.kernel.dk/linux:
  nvme-tcp: fix a possible UAF when failing to allocate an io queue
  md: fix regression for null-ptr-deference in __md_stop()
  nvme-pci: mark Lexar NM760 as IGNORE_DEV_SUBNQN
  loop: LOOP_CONFIGURE: send uevents for partitions

19 months agoMerge tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux
Linus Torvalds [Fri, 31 Mar 2023 19:30:13 +0000 (12:30 -0700)]
Merge tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:

 - Fix a regression with the poll retry, introduced in this merge window
   (me)

 - Fix a regression with the alloc cache not decrementing the member
   count on removal. Also a regression from this merge window (Pavel)

 - Fix race around rsrc node grabbing (Pavel)

* tag 'io_uring-6.3-2023-03-30' of git://git.kernel.dk/linux:
  io_uring: fix poll/netmsg alloc caches
  io_uring/rsrc: fix rogue rsrc node grabbing
  io_uring/poll: clear single/double poll flags on poll arming

19 months agoplatform/x86: ideapad-laptop: Stop sending KEY_TOUCHPAD_TOGGLE
Hans de Goede [Thu, 30 Mar 2023 19:46:44 +0000 (21:46 +0200)]
platform/x86: ideapad-laptop: Stop sending KEY_TOUCHPAD_TOGGLE

Commit 5829f8a897e4 ("platform/x86: ideapad-laptop: Send
KEY_TOUCHPAD_TOGGLE on some models") made ideapad-laptop send
KEY_TOUCHPAD_TOGGLE when we receive an ACPI notify with VPC event bit 5 set
and the touchpad-state has not been changed by the EC itself already.

This was done under the assumption that this would be good to do to make
the touchpad-toggle hotkey work on newer models where the EC does not
toggle the touchpad on/off itself (because it is not routed through
the PS/2 controller, but uses I2C).

But it turns out that at least some models, e.g. the Yoga 7-15ITL5 the EC
triggers an ACPI notify with VPC event bit 5 set on resume, which would
now cause a spurious KEY_TOUCHPAD_TOGGLE on resume to which the desktop
environment responds by disabling the touchpad in software, breaking
the touchpad (until manually re-enabled) on resume.

It was never confirmed that sending KEY_TOUCHPAD_TOGGLE actually improves
things on new models and at least some new models like the Yoga 7-15ITL5
don't have a touchpad on/off toggle hotkey at all, while still sending
ACPI notify events with VPC event bit 5 set.

So it seems best to revert the change to send KEY_TOUCHPAD_TOGGLE when
receiving an ACPI notify events with VPC event bit 5 and the touchpad
state as reported by the EC has not changed.

Note this is not a full revert the code to cache the last EC touchpad
state is kept to avoid sending spurious KEY_TOUCHPAD_ON / _OFF events
on resume.

Fixes: 5829f8a897e4 ("platform/x86: ideapad-laptop: Send KEY_TOUCHPAD_TOGGLE on some models")
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217234
Cc: stable@vger.kernel.org
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Link: https://lore.kernel.org/r/20230330194644.64628-1-hdegoede@redhat.com
19 months agoplatform/x86: asus-nb-wmi: Add quirk_asus_tablet_mode to other ROG Flow X13 models
weiliang1503 [Thu, 30 Mar 2023 11:49:43 +0000 (19:49 +0800)]
platform/x86: asus-nb-wmi: Add quirk_asus_tablet_mode to other ROG Flow X13 models

Make quirk_asus_tablet_mode apply on other ROG Flow X13 devices,
which only affects the GV301Q model before.

Signed-off-by: weiliang1503 <weiliang1503@gmail.com>
Link: https://lore.kernel.org/r/20230330114943.15057-1-weiliang1503@gmail.com
Reviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
19 months agoplatform/x86: gigabyte-wmi: add support for X570S AORUS ELITE
Hans de Goede [Fri, 31 Mar 2023 17:31:48 +0000 (19:31 +0200)]
platform/x86: gigabyte-wmi: add support for X570S AORUS ELITE

Add "X570S AORUS ELITE" to known working boards

Reported-by: Brandon Nielsen <nielsenb@jetfuse.net>
Link: https://lore.kernel.org/r/20230331014902.7864-1-nielsenb@jetfuse.net
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
19 months agoMerge tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 31 Mar 2023 17:23:27 +0000 (10:23 -0700)]
Merge tag 'thermal-6.3-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "These remove two recently added excessive lockdep assertions from the
  sysfs-related thermal code and fix two issues in Intel thermal
  drivers.

  Specifics:

   - Drop two lockdep assertions producing false positive warnings from
     the sysfs-related thermal core code (Rafael Wysocki)

   - Fix handling of two recently added module parameters in the Intel
     powerclamp thermal driver (David Arcari)

   - Fix one more deadlock in the int340x thermal driver (Srinivas
     Pandruvada)"

* tag 'thermal-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: intel: powerclamp: Fix cpumask and max_idle module parameters
  thermal: intel: int340x: processor_thermal: Fix additional deadlock
  thermal: core: Drop excessive lockdep_assert_held() calls

19 months agoMerge tag 'acpi-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael...
Linus Torvalds [Fri, 31 Mar 2023 17:18:56 +0000 (10:18 -0700)]
Merge tag 'acpi-6.3-rc5' of git://git./linux/kernel/git/rafael/linux-pm

Pull ACPI fix from Rafael Wysocki:
 "Fix a recent regression related to the handling of ACPI notifications
  that made it more likely for ACPI driver callbacks to be invoked in an
  unexpected order and NULL pointers can be dereferenced as a result or
  similar.

  The fix is to modify the global ACPI notification handler so it does
  not invoke driver callbacks at all and allow the device-level
  notification handlers to receive "system" notifications (for the
  drivers that want to receive them)"

* tag 'acpi-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  ACPI: bus: Rework system-level device notification handling

19 months agoMerge tag 'riscv-for-linus-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel...
Linus Torvalds [Fri, 31 Mar 2023 17:15:17 +0000 (10:15 -0700)]
Merge tag 'riscv-for-linus-6.3-rc5' of git://git./linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix for FPU probing in XIP kernels

 - Always enable the alternative framework for non-XIP kernels

* tag 'riscv-for-linus-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  RISC-V: always select RISCV_ALTERNATIVE for non-xip kernels
  RISC-V: add non-alternative fallback for riscv_has_extension_[un]likely()

19 months agoMerge tag 'mips-fixes_6.3_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips...
Linus Torvalds [Fri, 31 Mar 2023 17:12:07 +0000 (10:12 -0700)]
Merge tag 'mips-fixes_6.3_1' of git://git./linux/kernel/git/mips/linux

Pull MIPS fix from Thomas Bogendoerfer:
 "Fix to avoid crash on BCM6358 platforms"

* tag 'mips-fixes_6.3_1' of git://git.kernel.org/pub/scm/linux/kernel/git/mips/linux:
  mips: bmips: BCM6358: disable RAC flush for TP1

19 months agoMerge branch 'thermal-intel-fixes'
Rafael J. Wysocki [Fri, 31 Mar 2023 10:02:46 +0000 (12:02 +0200)]
Merge branch 'thermal-intel-fixes'

Merge Intel thermal driver fixes for 6.3-rc5:

 - Fix handling of two recently added module parameters in the Intel
   powerclamp thermal driver (David Arcari).

 - Fix one more deadlock in the int340x thermal driver (Srinivas
   Pandruvada).

* thermal-intel-fixes:
  thermal: intel: powerclamp: Fix cpumask and max_idle module parameters
  thermal: intel: int340x: processor_thermal: Fix additional deadlock

19 months agoiommu/vt-d: Fix an IOMMU perfmon warning when CPU hotplug
Kan Liang [Wed, 29 Mar 2023 13:47:21 +0000 (21:47 +0800)]
iommu/vt-d: Fix an IOMMU perfmon warning when CPU hotplug

A warning can be triggered when hotplug CPU 0.
$ echo 0 > /sys/devices/system/cpu/cpu0/online

 ------------[ cut here ]------------
 Voluntary context switch within RCU read-side critical section!
 WARNING: CPU: 0 PID: 19 at kernel/rcu/tree_plugin.h:318
          rcu_note_context_switch+0x4f4/0x580
 RIP: 0010:rcu_note_context_switch+0x4f4/0x580
 Call Trace:
  <TASK>
  ? perf_event_update_userpage+0x104/0x150
  __schedule+0x8d/0x960
  ? perf_event_set_state.part.82+0x11/0x50
  schedule+0x44/0xb0
  schedule_timeout+0x226/0x310
  ? __perf_event_disable+0x64/0x1a0
  ? _raw_spin_unlock+0x14/0x30
  wait_for_completion+0x94/0x130
  __wait_rcu_gp+0x108/0x130
  synchronize_rcu+0x67/0x70
  ? invoke_rcu_core+0xb0/0xb0
  ? __bpf_trace_rcu_stall_warning+0x10/0x10
  perf_pmu_migrate_context+0x121/0x370
  iommu_pmu_cpu_offline+0x6a/0xa0
  ? iommu_pmu_del+0x1e0/0x1e0
  cpuhp_invoke_callback+0x129/0x510
  cpuhp_thread_fun+0x94/0x150
  smpboot_thread_fn+0x183/0x220
  ? sort_range+0x20/0x20
  kthread+0xe6/0x110
  ? kthread_complete_and_exit+0x20/0x20
  ret_from_fork+0x1f/0x30
  </TASK>
 ---[ end trace 0000000000000000 ]---

The synchronize_rcu() will be invoked in the perf_pmu_migrate_context(),
when migrating a PMU to a new CPU. However, the current for_each_iommu()
is within RCU read-side critical section.

Two methods were considered to fix the issue.
- Use the dmar_global_lock to replace the RCU read lock when going
  through the drhd list. But it triggers a lockdep warning.
- Use the cpuhp_setup_state_multi() to set up a dedicated state for each
  IOMMU PMU. The lock can be avoided.

The latter method is implemented in this patch. Since each IOMMU PMU has
a dedicated state, add cpuhp_node and cpu in struct iommu_pmu to track
the state. The state can be dynamically allocated now. Remove the
CPUHP_AP_PERF_X86_IOMMU_PERF_ONLINE.

Fixes: 46284c6ceb5e ("iommu/vt-d: Support cpumask for IOMMU perfmon")
Reported-by: Ammy Yi <ammy.yi@intel.com>
Signed-off-by: Kan Liang <kan.liang@linux.intel.com>
Link: https://lore.kernel.org/r/20230328182028.1366416-1-kan.liang@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230329134721.469447-4-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
19 months agoiommu/vt-d: Allow zero SAGAW if second-stage not supported
Lu Baolu [Wed, 29 Mar 2023 13:47:20 +0000 (21:47 +0800)]
iommu/vt-d: Allow zero SAGAW if second-stage not supported

The VT-d spec states (in section 11.4.2) that hardware implementations
reporting second-stage translation support (SSTS) field as Clear also
report the SAGAW field as 0. Fix an inappropriate check in alloc_iommu().

Fixes: 792fb43ce2c9 ("iommu/vt-d: Enable Intel IOMMU scalable mode by default")
Suggested-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230318024824.124542-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20230329134721.469447-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
19 months agoiommu/vt-d: Remove unnecessary locking in intel_irq_remapping_alloc()
Lu Baolu [Wed, 29 Mar 2023 13:47:19 +0000 (21:47 +0800)]
iommu/vt-d: Remove unnecessary locking in intel_irq_remapping_alloc()

The global rwsem dmar_global_lock was introduced by commit 3a5670e8ac932
("iommu/vt-d: Introduce a rwsem to protect global data structures"). It
is used to protect DMAR related global data from DMAR hotplug operations.

Using dmar_global_lock in intel_irq_remapping_alloc() is unnecessary as
the DMAR global data structures are not touched there. Remove it to avoid
below lockdep warning.

 ======================================================
 WARNING: possible circular locking dependency detected
 6.3.0-rc2 #468 Not tainted
 ------------------------------------------------------
 swapper/0/1 is trying to acquire lock:
 ff1db4cb40178698 (&domain->mutex){+.+.}-{3:3},
   at: __irq_domain_alloc_irqs+0x3b/0xa0

 but task is already holding lock:
 ffffffffa0c1cdf0 (dmar_global_lock){++++}-{3:3},
   at: intel_iommu_init+0x58e/0x880

 which lock already depends on the new lock.

 the existing dependency chain (in reverse order) is:

 -> #1 (dmar_global_lock){++++}-{3:3}:
        lock_acquire+0xd6/0x320
        down_read+0x42/0x180
        intel_irq_remapping_alloc+0xad/0x750
        mp_irqdomain_alloc+0xb8/0x2b0
        irq_domain_alloc_irqs_locked+0x12f/0x2d0
        __irq_domain_alloc_irqs+0x56/0xa0
        alloc_isa_irq_from_domain.isra.7+0xa0/0xe0
        mp_map_pin_to_irq+0x1dc/0x330
        setup_IO_APIC+0x128/0x210
        apic_intr_mode_init+0x67/0x110
        x86_late_time_init+0x24/0x40
        start_kernel+0x41e/0x7e0
        secondary_startup_64_no_verify+0xe0/0xeb

 -> #0 (&domain->mutex){+.+.}-{3:3}:
        check_prevs_add+0x160/0xef0
        __lock_acquire+0x147d/0x1950
        lock_acquire+0xd6/0x320
        __mutex_lock+0x9c/0xfc0
        __irq_domain_alloc_irqs+0x3b/0xa0
        dmar_alloc_hwirq+0x9e/0x120
        iommu_pmu_register+0x11d/0x200
        intel_iommu_init+0x5de/0x880
        pci_iommu_init+0x12/0x40
        do_one_initcall+0x65/0x350
        kernel_init_freeable+0x3ca/0x610
        kernel_init+0x1a/0x140
        ret_from_fork+0x29/0x50

 other info that might help us debug this:

 Possible unsafe locking scenario:

        CPU0                    CPU1
        ----                    ----
   lock(dmar_global_lock);
                                lock(&domain->mutex);
                                lock(dmar_global_lock);
   lock(&domain->mutex);

                *** DEADLOCK ***

Fixes: 9dbb8e3452ab ("irqdomain: Switch to per-domain locking")
Reviewed-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Tested-by: Jason Gunthorpe <jgg@nvidia.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230314051836.23817-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20230329134721.469447-2-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
19 months agoMerge tag 'md-fixes-2023-03-29' of https://git.kernel.org/pub/scm/linux/kernel/git...
Jens Axboe [Fri, 31 Mar 2023 02:29:47 +0000 (20:29 -0600)]
Merge tag 'md-fixes-2023-03-29' of https://git./linux/kernel/git/song/md into block-6.3

Pull MD fix from Song.

* tag 'md-fixes-2023-03-29' of https://git.kernel.org/pub/scm/linux/kernel/git/song/md:
  md: fix regression for null-ptr-deference in __md_stop()

19 months agoMerge tag 'dma-mapping-6.3-2023-03-31' of git://git.infradead.org/users/hch/dma-mapping
Linus Torvalds [Thu, 30 Mar 2023 23:09:37 +0000 (16:09 -0700)]
Merge tag 'dma-mapping-6.3-2023-03-31' of git://git.infradead.org/users/hch/dma-mapping

Pull dma-mapping fixes from Christoph Hellwig:

 - fix for swiotlb deadlock due to wrong alignment checks (GuoRui.Yu,
   Petr Tesarik)

* tag 'dma-mapping-6.3-2023-03-31' of git://git.infradead.org/users/hch/dma-mapping:
  swiotlb: fix slot alignment checks
  swiotlb: use wrap_area_index() instead of open-coding it
  swiotlb: fix the deadlock in swiotlb_do_find_slots

19 months agocifs: get rid of dead check in smb2_reconnect()
Paulo Alcantara [Wed, 29 Mar 2023 20:14:23 +0000 (17:14 -0300)]
cifs: get rid of dead check in smb2_reconnect()

The SMB2_IOCTL check in the switch statement will never be true as we
return earlier from smb2_reconnect() if @smb2_command == SMB2_IOCTL.

Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
19 months agocifs: prevent infinite recursion in CIFSGetDFSRefer()
Paulo Alcantara [Wed, 29 Mar 2023 20:14:22 +0000 (17:14 -0300)]
cifs: prevent infinite recursion in CIFSGetDFSRefer()

We can't call smb_init() in CIFSGetDFSRefer() as cifs_reconnect_tcon()
may end up calling CIFSGetDFSRefer() again to get new DFS referrals
and thus causing an infinite recursion.

Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Cc: stable@vger.kernel.org # 6.2
Signed-off-by: Steve French <stfrench@microsoft.com>
19 months agocifs: avoid races in parallel reconnects in smb1
Paulo Alcantara [Wed, 29 Mar 2023 20:14:21 +0000 (17:14 -0300)]
cifs: avoid races in parallel reconnects in smb1

Prevent multiple threads of doing negotiate, session setup and tree
connect by holding @ses->session_mutex in cifs_reconnect_tcon() while
reconnecting session and tcon.

Signed-off-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
19 months agoMerge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Linus Torvalds [Thu, 30 Mar 2023 22:52:45 +0000 (15:52 -0700)]
Merge tag 'scsi-fixes' of git://git./linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "Four small fixes, three in drivers. The core fix is yet another
  attempt to insulate us from UFS devices' weird behaviour for VPD
  pages"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: mpt3sas: Don't print sense pool info twice
  scsi: core: Improve scsi_vpd_inquiry() checks
  scsi: megaraid_sas: Fix crash after a double completion
  scsi: megaraid_sas: Fix fw_crash_buffer_show()

19 months agoMerge tag 'nvme-6.3-2023-03-31' of git://git.infradead.org/nvme into block-6.3
Jens Axboe [Thu, 30 Mar 2023 22:39:04 +0000 (16:39 -0600)]
Merge tag 'nvme-6.3-2023-03-31' of git://git.infradead.org/nvme into block-6.3

Pull NVMe fixes from Christoph:

"nvme fixes for Linux 6.3

 - mark Lexar NM760 as IGNORE_DEV_SUBNQN (Juraj Pecigos)
 - fix a possible UAF when failing to allocate an TCP io queue
   (Sagi Grimberg)"

* tag 'nvme-6.3-2023-03-31' of git://git.infradead.org/nvme:
  nvme-tcp: fix a possible UAF when failing to allocate an io queue
  nvme-pci: mark Lexar NM760 as IGNORE_DEV_SUBNQN

19 months agocifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL
David Disseldorp [Wed, 29 Mar 2023 20:24:06 +0000 (22:24 +0200)]
cifs: fix DFS traversal oops without CONFIG_CIFS_DFS_UPCALL

When compiled with CONFIG_CIFS_DFS_UPCALL disabled, cifs_dfs_d_automount
is NULL. cifs.ko logic for mapping CIFS_FATTR_DFS_REFERRAL attributes to
S_AUTOMOUNT and corresponding dentry flags is retained regardless of
CONFIG_CIFS_DFS_UPCALL, leading to a NULL pointer dereference in
VFS follow_automount() when traversing a DFS referral link:
  BUG: kernel NULL pointer dereference, address: 0000000000000000
  ...
  Call Trace:
   <TASK>
   __traverse_mounts+0xb5/0x220
   ? cifs_revalidate_mapping+0x65/0xc0 [cifs]
   step_into+0x195/0x610
   ? lookup_fast+0xe2/0xf0
   path_lookupat+0x64/0x140
   filename_lookup+0xc2/0x140
   ? __create_object+0x299/0x380
   ? kmem_cache_alloc+0x119/0x220
   ? user_path_at_empty+0x31/0x50
   user_path_at_empty+0x31/0x50
   __x64_sys_chdir+0x2a/0xd0
   ? exit_to_user_mode_prepare+0xca/0x100
   do_syscall_64+0x42/0x90
   entry_SYSCALL_64_after_hwframe+0x72/0xdc

This fix adds an inline cifs_dfs_d_automount() {return -EREMOTE} handler
when CONFIG_CIFS_DFS_UPCALL is disabled. An alternative would be to
avoid flagging S_AUTOMOUNT, etc. without CONFIG_CIFS_DFS_UPCALL. This
approach was chosen as it provides more control over the error path.

Signed-off-by: David Disseldorp <ddiss@suse.de>
Cc: stable@vger.kernel.org
Reviewed-by: Paulo Alcantara (SUSE) <pc@manguebit.com>
Reviewed-by: Ronnie Sahlberg <lsahlber@redhat.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
19 months agoMerge tag 'net-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Linus Torvalds [Thu, 30 Mar 2023 21:05:21 +0000 (14:05 -0700)]
Merge tag 'net-6.3-rc5' of git://git./linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Including fixes from CAN and WPAN.

  Still quite a few bugs from this release. This pull is a bit smaller
  because major subtrees went into the previous one. Or maybe people
  took spring break off?

  Current release - regressions:

   - phy: micrel: correct KSZ9131RNX EEE capabilities and advertisement

  Current release - new code bugs:

   - eth: wangxun: fix vector length of interrupt cause

   - vsock/loopback: consistently protect the packet queue with
     sk_buff_head.lock

   - virtio/vsock: fix header length on skb merging

   - wpan: ca8210: fix unsigned mac_len comparison with zero

  Previous releases - regressions:

   - eth: stmmac: don't reject VLANs when IFF_PROMISC is set

   - eth: smsc911x: avoid PHY being resumed when interface is not up

   - eth: mtk_eth_soc: fix tx throughput regression with direct 1G links

   - eth: bnx2x: use the right build_skb() helper after core rework

   - wwan: iosm: fix 7560 modem crash on use on unsupported channel

  Previous releases - always broken:

   - eth: sfc: don't overwrite offload features at NIC reset

   - eth: r8169: fix RTL8168H and RTL8107E rx crc error

   - can: j1939: prevent deadlock by moving j1939_sk_errqueue()

   - virt: vmxnet3: use GRO callback when UPT is enabled

   - virt: xen: don't do grant copy across page boundary

   - phy: dp83869: fix default value for tx-/rx-internal-delay

   - dsa: ksz8: fix multiple issues with ksz8_fdb_dump

   - eth: mvpp2: fix classification/RSS of VLAN and fragmented packets

   - eth: mtk_eth_soc: fix flow block refcounting logic

  Misc:

   - constify fwnode pointers in SFP handling"

* tag 'net-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (55 commits)
  net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow
  net: ethernet: mtk_eth_soc: fix L2 offloading with DSA untag offload
  net: ethernet: mtk_eth_soc: fix flow block refcounting logic
  net: mvneta: fix potential double-frees in mvneta_txq_sw_deinit()
  net: dsa: sync unicast and multicast addresses for VLAN filters too
  net: dsa: mv88e6xxx: Enable IGMP snooping on user ports only
  xen/netback: use same error messages for same errors
  test/vsock: new skbuff appending test
  virtio/vsock: WARN_ONCE() for invalid state of socket
  virtio/vsock: fix header length on skb merging
  bnxt_en: Add missing 200G link speed reporting
  bnxt_en: Fix typo in PCI id to device description string mapping
  bnxt_en: Fix reporting of test result in ethtool selftest
  i40e: fix registers dump after run ethtool adapter self test
  bnx2x: use the right build_skb() helper
  net: ipa: compute DMA pool size properly
  net: wwan: iosm: fixes 7560 modem crash
  net: ethernet: mtk_eth_soc: fix tx throughput regression with direct 1G links
  ice: fix invalid check for empty list in ice_sched_assoc_vsi_to_agg()
  ice: add profile conflict check for AVF FDIR
  ...

19 months agoMerge tag 'for-6.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/devic...
Linus Torvalds [Thu, 30 Mar 2023 20:58:12 +0000 (13:58 -0700)]
Merge tag 'for-6.3/dm-fixes-2' of git://git./linux/kernel/git/device-mapper/linux-dm

Pull device mapper fixes from Mike Snitzer:

 - Fix two DM core bugs in the code that handles splitting "abnormal" IO
   (discards, write same and secure erase) and issuing that IO to the
   correct underlying devices (and offsets within those devices).

* tag 'for-6.3/dm-fixes-2' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm: fix __send_duplicate_bios() to always allow for splitting IO
  dm: fix improper splitting for abnormal bios

19 months agoMerge tag 'drm-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm
Linus Torvalds [Thu, 30 Mar 2023 20:38:27 +0000 (13:38 -0700)]
Merge tag 'drm-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm

Pull drm fixes from Daniel Vetter:
 "Two regression fixes in here, otherwise just the usual stuff:

   - i915 fixes for color mgmt, psr, lmem flush, hibernate oops, and
     more

   - amdgpu: dp mst and hibernate regression fix

   - etnaviv: revert fdinfo support (incl drm/sched revert), leak fix

   - misc ivpu fixes, nouveau backlight, drm buddy allocator 32bit
     fixes"

* tag 'drm-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm: (27 commits)
  Revert "drm/scheduler: track GPU active time per entity"
  Revert "drm/etnaviv: export client GPU usage statistics via fdinfo"
  drm/etnaviv: fix reference leak when mmaping imported buffer
  drm/amdgpu: allow more APUs to do mode2 reset when go to S4
  drm/amd/display: Take FEC Overhead into Timeslot Calculation
  drm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub
  drm: test: Fix 32-bit issue in drm_buddy_test
  drm: buddy_allocator: Fix buddy allocator init on 32-bit systems
  drm/nouveau/kms: Fix backlight registration
  drm/i915/perf: Drop wakeref on GuC RC error
  drm/i915/dpt: Treat the DPT BO as a framebuffer
  drm/i915/gem: Flush lmem contents after construction
  drm/i915/tc: Fix the ICL PHY ownership check in TC-cold state
  drm/i915: Disable DC states for all commits
  drm/i915: Workaround ICL CSC_MODE sticky arming
  drm/i915: Add a .color_post_update() hook
  drm/i915: Move CSC load back into .color_commit_arm() when PSR is enabled on skl/glk
  drm/i915: Split icl_color_commit_noarm() from skl_color_commit_noarm()
  drm/i915/pmu: Use functions common with sysfs to read actual freq
  accel/ivpu: Fix IPC buffer header status field value
  ...

19 months agodm: fix __send_duplicate_bios() to always allow for splitting IO
Mike Snitzer [Thu, 30 Mar 2023 19:09:29 +0000 (15:09 -0400)]
dm: fix __send_duplicate_bios() to always allow for splitting IO

Commit 7dd76d1feec70 ("dm: improve bio splitting and associated IO
accounting") only called setup_split_accounting() from
__send_duplicate_bios() if a single bio were being issued. But the case
where duplicate bios are issued must call it too.

Otherwise the bio won't be split and resubmitted (via recursion through
block core back to DM) to submit the later portions of a bio (which may
map to an entirely different target).

For example, when discarding an entire DM striped device with the
following DM table:
 vg-lvol0: 0 159744 striped 2 128 7:0 2048 7:1 2048
 vg-lvol0: 159744 45056 striped 2 128 7:2 2048 7:3 2048

Before (broken, discards the first striped target's devices twice):
 device-mapper: striped: target_stripe=0, bdev=7:0, start=2048 len=79872
 device-mapper: striped: target_stripe=1, bdev=7:1, start=2048 len=79872
 device-mapper: striped: target_stripe=0, bdev=7:0, start=2049 len=22528
 device-mapper: striped: target_stripe=1, bdev=7:1, start=2048 len=22528

After (works as expected):
 device-mapper: striped: target_stripe=0, bdev=7:0, start=2048 len=79872
 device-mapper: striped: target_stripe=1, bdev=7:1, start=2048 len=79872
 device-mapper: striped: target_stripe=0, bdev=7:2, start=2048 len=22528
 device-mapper: striped: target_stripe=1, bdev=7:3, start=2048 len=22528

Fixes: 7dd76d1feec70 ("dm: improve bio splitting and associated IO accounting")
Cc: stable@vger.kernel.org
Reported-by: Orange Kao <orange@aiven.io>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
19 months agodm: fix improper splitting for abnormal bios
Mike Snitzer [Thu, 30 Mar 2023 18:56:38 +0000 (14:56 -0400)]
dm: fix improper splitting for abnormal bios

"Abnormal" bios include discards, write zeroes and secure erase. By no
longer passing the calculated 'len' pointer, commit 7dd06a2548b2 ("dm:
allow dm_accept_partial_bio() for dm_io without duplicate bios") took a
senseless approach to disallowing dm_accept_partial_bio() from working
for duplicate bios processed using __send_duplicate_bios().

It inadvertently and incorrectly stopped the use of 'len' when
initializing a target's io (in alloc_tio). As such the resulting tio
could address more area of a device than it should.

For example, when discarding an entire DM striped device with the
following DM table:
 vg-lvol0: 0 159744 striped 2 128 7:0 2048 7:1 2048
 vg-lvol0: 159744 45056 striped 2 128 7:2 2048 7:3 2048

Before this fix:

 device-mapper: striped: target_stripe=0, bdev=7:0, start=2048 len=102400
 blkdiscard: attempt to access beyond end of device
 loop0: rw=2051, sector=2048, nr_sectors = 102400 limit=81920

 device-mapper: striped: target_stripe=1, bdev=7:1, start=2048 len=102400
 blkdiscard: attempt to access beyond end of device
 loop1: rw=2051, sector=2048, nr_sectors = 102400 limit=81920

After this fix;

 device-mapper: striped: target_stripe=0, bdev=7:0, start=2048 len=79872
 device-mapper: striped: target_stripe=1, bdev=7:1, start=2048 len=79872

Fixes: 7dd06a2548b2 ("dm: allow dm_accept_partial_bio() for dm_io without duplicate bios")
Cc: stable@vger.kernel.org
Reported-by: Orange Kao <orange@aiven.io>
Signed-off-by: Mike Snitzer <snitzer@kernel.org>
19 months agonet: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow
Felix Fietkau [Thu, 30 Mar 2023 12:08:40 +0000 (14:08 +0200)]
net: ethernet: mtk_eth_soc: add missing ppe cache flush when deleting a flow

The cache needs to be flushed to ensure that the hardware stops offloading
the flow immediately.

Fixes: 33fc42de3327 ("net: ethernet: mtk_eth_soc: support creating mac address based offload entries")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230330120840.52079-3-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonet: ethernet: mtk_eth_soc: fix L2 offloading with DSA untag offload
Felix Fietkau [Thu, 30 Mar 2023 12:08:39 +0000 (14:08 +0200)]
net: ethernet: mtk_eth_soc: fix L2 offloading with DSA untag offload

Check for skb metadata in order to detect the case where the DSA header
is not present.

Fixes: 2d7605a72906 ("net: ethernet: mtk_eth_soc: enable hardware DSA untagging")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230330120840.52079-2-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonet: ethernet: mtk_eth_soc: fix flow block refcounting logic
Felix Fietkau [Thu, 30 Mar 2023 12:08:38 +0000 (14:08 +0200)]
net: ethernet: mtk_eth_soc: fix flow block refcounting logic

Since we call flow_block_cb_decref on FLOW_BLOCK_UNBIND, we also need to
call flow_block_cb_incref for a newly allocated cb.
Also fix the accidentally inverted refcount check on unbind.

Fixes: 502e84e2382d ("net: ethernet: mtk_eth_soc: add flow offloading support")
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230330120840.52079-1-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonet: mvneta: fix potential double-frees in mvneta_txq_sw_deinit()
Russell King (Oracle) [Wed, 29 Mar 2023 12:11:17 +0000 (13:11 +0100)]
net: mvneta: fix potential double-frees in mvneta_txq_sw_deinit()

Reported on the Turris forum, mvneta provokes kernel warnings in the
architecture DMA mapping code when mvneta_setup_txqs() fails to
allocate memory. This happens because when mvneta_cleanup_txqs() is
called in the mvneta_stop() path, we leave pointers in the structure
that have been freed.

Then on mvneta_open(), we call mvneta_setup_txqs(), which starts
allocating memory. On memory allocation failure, mvneta_cleanup_txqs()
will walk all the queues freeing any non-NULL pointers - which includes
pointers that were previously freed in mvneta_stop().

Fix this by setting these pointers to NULL to prevent double-freeing
of the same memory.

Fixes: 2adb719d74f6 ("net: mvneta: Implement software TSO")
Link: https://forum.turris.cz/t/random-kernel-exceptions-on-hbl-tos-7-0/18865/8
Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
Link: https://lore.kernel.org/r/E1phUe5-00EieL-7q@rmk-PC.armlinux.org.uk
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonet: dsa: sync unicast and multicast addresses for VLAN filters too
Vladimir Oltean [Wed, 29 Mar 2023 15:18:21 +0000 (18:18 +0300)]
net: dsa: sync unicast and multicast addresses for VLAN filters too

If certain conditions are met, DSA can install all necessary MAC
addresses on the CPU ports as FDB entries and disable flooding towards
the CPU (we call this RX filtering).

There is one corner case where this does not work.

ip link add br0 type bridge vlan_filtering 1 && ip link set br0 up
ip link set swp0 master br0 && ip link set swp0 up
ip link add link swp0 name swp0.100 type vlan id 100
ip link set swp0.100 up && ip addr add 192.168.100.1/24 dev swp0.100

Traffic through swp0.100 is broken, because the bridge turns on VLAN
filtering in the swp0 port (causing RX packets to be classified to the
FDB database corresponding to the VID from their 802.1Q header), and
although the 8021q module does call dev_uc_add() towards the real
device, that API is VLAN-unaware, so it only contains the MAC address,
not the VID; and DSA's current implementation of ndo_set_rx_mode() is
only for VID 0 (corresponding to FDB entries which are installed in an
FDB database which is only hit when the port is VLAN-unaware).

It's interesting to understand why the bridge does not turn on
IFF_PROMISC for its swp0 bridge port, and it may appear at first glance
that this is a regression caused by the logic in commit 2796d0c648c9
("bridge: Automatically manage port promiscuous mode."). After all,
a bridge port needs to have IFF_PROMISC by its very nature - it needs to
receive and forward frames with a MAC DA different from the bridge
ports' MAC addresses.

While that may be true, when the bridge is VLAN-aware *and* it has a
single port, there is no real reason to enable promiscuity even if that
is an automatic port, with flooding and learning (there is nowhere for
packets to go except to the BR_FDB_LOCAL entries), and this is how the
corner case appears. Adding a second automatic interface to the bridge
would make swp0 promisc as well, and would mask the corner case.

Given the dev_uc_add() / ndo_set_rx_mode() API is what it is (it doesn't
pass a VLAN ID), the only way to address that problem is to install host
FDB entries for the cartesian product of RX filtering MAC addresses and
VLAN RX filters.

Fixes: 7569459a52c9 ("net: dsa: manage flooding on the CPU ports")
Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230329151821.745752-1-vladimir.oltean@nxp.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonet: dsa: mv88e6xxx: Enable IGMP snooping on user ports only
Steffen Bätz [Wed, 29 Mar 2023 15:01:40 +0000 (12:01 -0300)]
net: dsa: mv88e6xxx: Enable IGMP snooping on user ports only

Do not set the MV88E6XXX_PORT_CTL0_IGMP_MLD_SNOOP bit on CPU or DSA ports.

This allows the host CPU port to be a regular IGMP listener by sending out
IGMP Membership Reports, which would otherwise not be forwarded by the
mv88exxx chip, but directly looped back to the CPU port itself.

Fixes: 54d792f257c6 ("net: dsa: Centralise global and port setup code into mv88e6xxx.")
Signed-off-by: Steffen Bätz <steffen@innosonix.de>
Signed-off-by: Fabio Estevam <festevam@denx.de>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Link: https://lore.kernel.org/r/20230329150140.701559-1-festevam@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agoMerge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm...
Daniel Vetter [Thu, 30 Mar 2023 18:15:06 +0000 (20:15 +0200)]
Merge branch 'etnaviv/fixes' of https://git.pengutronix.de/git/lst/linux into drm-fixes

- revert gpu time fdinfo support
- reference leak fix on imported buffers

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Lucas Stach <l.stach@pengutronix.de>
Link: https://patchwork.freedesktop.org/patch/msgid/de8e08c2599ec0e22456ae36e9757b9ff14c2124.camel@pengutronix.de
19 months agothermal: intel: powerclamp: Fix cpumask and max_idle module parameters
David Arcari [Thu, 30 Mar 2023 13:42:18 +0000 (09:42 -0400)]
thermal: intel: powerclamp: Fix cpumask and max_idle module parameters

When cpumask is specified as a module parameter the value is
overwritten by the module init routine.  This can easily be fixed
by checking to see if the mask has already been allocated in the
init routine.

When max_idle is specified as a module parameter a panic will occur.
The problem is that the idle_injection_cpu_mask is not allocated until
the module init routine executes. This can easily be fixed by allocating
the cpumask if it's not already allocated.

Fixes: ebf519710218 ("thermal: intel: powerclamp: Add two module parameters")
Signed-off-by: David Arcari <darcari@redhat.com>
Reviewed-by: Srinivas Pandruvada<srinivas.pandruvada@linux.intel.com>
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
19 months agoMerge tag 'amd-drm-fixes-6.3-2023-03-30' of https://gitlab.freedesktop.org/agd5f...
Daniel Vetter [Thu, 30 Mar 2023 17:59:06 +0000 (19:59 +0200)]
Merge tag 'amd-drm-fixes-6.3-2023-03-30' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.3-2023-03-30:

amdgpu:
- Hibernation regression fix

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330153859.18332-1-alexander.deucher@amd.com
19 months agoMerge tag 'drm-misc-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm-misc...
Daniel Vetter [Thu, 30 Mar 2023 16:56:52 +0000 (18:56 +0200)]
Merge tag 'drm-misc-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm-misc into drm-fixes

Short summary of fixes pull:

 * various ivpu fixes
 * fix nouveau backlight registration
 * fix buddy allocator in 32-bit systems

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20230330141006.GA22908@linux-uq9g
19 months agoMerge tag 'amd-drm-fixes-6.3-2023-03-29' of https://gitlab.freedesktop.org/agd5f...
Daniel Vetter [Thu, 30 Mar 2023 16:26:05 +0000 (18:26 +0200)]
Merge tag 'amd-drm-fixes-6.3-2023-03-29' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.3-2023-03-29:

amdgpu:
- Two DP MST fixes

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329220059.7622-1-alexander.deucher@amd.com
19 months agoMerge tag 'drm-intel-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm-intel...
Daniel Vetter [Thu, 30 Mar 2023 16:07:12 +0000 (18:07 +0200)]
Merge tag 'drm-intel-fixes-2023-03-30' of git://anongit.freedesktop.org/drm/drm-intel into drm-fixes

drm/i915 fixes for v6.3-rc5:
- Fix PMU support by reusing functions with sysfs
- Fix a number of issues related to color, PSR and arm/noarm
- Fix state check related to ICL PHY ownership check in TC-cold state
- Flush lmem contents after construction
- Fix hibernate oops related to DPT BO
- Fix perf stream error path wakeref balance

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/87355m4gtm.fsf@intel.com
19 months agoMerge tag 'sound-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai...
Linus Torvalds [Thu, 30 Mar 2023 16:04:04 +0000 (09:04 -0700)]
Merge tag 'sound-6.3-rc5' of git://git./linux/kernel/git/tiwai/sound

Pull sound fixes from Takashi Iwai:
 "A collection of small fixes:

   - A potential deadlock fix for USB-audio, involving some change in
     PCM core side

   - A regression fix for probes of USB-audio devices with the
     vendor-specific PCM format bits

   - Two regression fixes for the old YMFPCI driver

   - A few HD-audio quirks as usual"

* tag 'sound-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda/realtek: Add quirk for Lenovo ZhaoYang CF4620Z
  ALSA: ymfpci: Fix BUG_ON in probe function
  ALSA: ymfpci: Create card with device-managed snd_devm_card_new()
  ALSA: usb-audio: Fix regression on detection of Roland VS-100
  ALSA: hda/realtek: Fix support for Dell Precision 3260
  ALSA: usb-audio: Fix recursive locking at XRUN during syncing
  ALSA: hda/conexant: Partial revert of a quirk for Lenovo
  ALSA: hda/realtek: Add quirks for some Clevo laptops

19 months agoMerge tag 'zonefs-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal...
Linus Torvalds [Thu, 30 Mar 2023 16:00:17 +0000 (09:00 -0700)]
Merge tag 'zonefs-6.3-rc5' of git://git./linux/kernel/git/dlemoal/zonefs

Pull zonefs fixes from Damien Le Moal:

 - Make sure to always invalidate the last page of an inode straddling
   inode->i_size to avoid data inconsistencies with appended data when
   the device zone write granularity does not match the page size.

 - Do not propagate iomap -ENOBLK error to userspace and use -EBUSY
   instead.

* tag 'zonefs-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/dlemoal/zonefs:
  zonefs: Do not propagate iomap_dio_rw() ENOTBLK error to user space
  zonefs: Always invalidate last cached page on append write

19 months agoRevert "drm/scheduler: track GPU active time per entity"
Lucas Stach [Thu, 30 Mar 2023 15:35:13 +0000 (17:35 +0200)]
Revert "drm/scheduler: track GPU active time per entity"

This reverts commit df622729ddbf as it introduces a use-after-free,
which isn't easy to fix without going back to the design drawing board.

Reported-by: Danilo Krummrich <dakr@redhat.com>
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
19 months agoRevert "drm/etnaviv: export client GPU usage statistics via fdinfo"
Lucas Stach [Thu, 30 Mar 2023 15:33:27 +0000 (17:33 +0200)]
Revert "drm/etnaviv: export client GPU usage statistics via fdinfo"

This reverts commit 97804a133c68, as it builds on top of df622729ddbf
("drm/scheduler: track GPU active time per entity") which needs to be
reverted, as it introduces a use-after-free.

Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
19 months agodrm/etnaviv: fix reference leak when mmaping imported buffer
Lucas Stach [Fri, 24 Feb 2023 17:21:54 +0000 (18:21 +0100)]
drm/etnaviv: fix reference leak when mmaping imported buffer

drm_gem_prime_mmap() takes a reference on the GEM object, but before that
drm_gem_mmap_obj() already takes a reference, which will be leaked as only
one reference is dropped when the mapping is closed. Drop the extra
reference when dma_buf_mmap() succeeds.

Cc: stable@vger.kernel.org
Signed-off-by: Lucas Stach <l.stach@pengutronix.de>
Reviewed-by: Christian Gmeiner <christian.gmeiner@gmail.com>
19 months agodrm/amdgpu: allow more APUs to do mode2 reset when go to S4
Tim Huang [Thu, 30 Mar 2023 02:33:02 +0000 (10:33 +0800)]
drm/amdgpu: allow more APUs to do mode2 reset when go to S4

Skip mode2 reset only for IMU enabled APUs when do S4.

This patch is to fix the regression issue
https://gitlab.freedesktop.org/drm/amd/-/issues/2483
It is generated by commit b589626674de ("drm/amdgpu: skip ASIC reset
for APUs when go to S4").

Fixes: b589626674de ("drm/amdgpu: skip ASIC reset for APUs when go to S4")
Link: https://gitlab.freedesktop.org/drm/amd/-/issues/2483
Tested-by: Yuan Perry <Perry.Yuan@amd.com>
Signed-off-by: Tim Huang <tim.huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org # 6.1.x
19 months agoxen/netback: use same error messages for same errors
Juergen Gross [Wed, 29 Mar 2023 08:02:59 +0000 (10:02 +0200)]
xen/netback: use same error messages for same errors

Issue the same error message in case an illegal page boundary crossing
has been detected in both cases where this is tested.

Suggested-by: Jan Beulich <jbeulich@suse.com>
Signed-off-by: Juergen Gross <jgross@suse.com>
Reviewed-by: Jan Beulich <jbeulich@suse.com>
Link: https://lore.kernel.org/r/20230329080259.14823-1-jgross@suse.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
19 months agoio_uring: fix poll/netmsg alloc caches
Pavel Begunkov [Thu, 30 Mar 2023 12:52:38 +0000 (06:52 -0600)]
io_uring: fix poll/netmsg alloc caches

We increase cache->nr_cached when we free into the cache but don't
decrease when we take from it, so in some time we'll get an empty
cache with cache->nr_cached larger than IO_ALLOC_CACHE_MAX, that fails
io_alloc_cache_put() and effectively disables caching.

Fixes: 9b797a37c4bd8 ("io_uring: add abstraction around apoll cache")
Cc: stable@vger.kernel.org
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
19 months agozonefs: Do not propagate iomap_dio_rw() ENOTBLK error to user space
Damien Le Moal [Thu, 30 Mar 2023 00:47:58 +0000 (09:47 +0900)]
zonefs: Do not propagate iomap_dio_rw() ENOTBLK error to user space

The call to invalidate_inode_pages2_range() in __iomap_dio_rw() may
fail, in which case -ENOTBLK is returned and this error code is
propagated back to user space trhough iomap_dio_rw() ->
zonefs_file_dio_write() return chain. This error code is fairly obscure
and may confuse the user. Avoid this and be consistent with the behavior
of zonefs_file_dio_append() for similar invalidate_inode_pages2_range()
errors by returning -EBUSY to user space when iomap_dio_rw() returns
-ENOTBLK.

Suggested-by: Christoph Hellwig <hch@infradead.org>
Fixes: 8dcc1a9d90c1 ("fs: New zonefs file system")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Tested-by: Hans Holmberg <hans.holmberg@wdc.com>
19 months agozonefs: Always invalidate last cached page on append write
Damien Le Moal [Wed, 29 Mar 2023 04:16:01 +0000 (13:16 +0900)]
zonefs: Always invalidate last cached page on append write

When a direct append write is executed, the append offset may correspond
to the last page of a sequential file inode which might have been cached
already by buffered reads, page faults with mmap-read or non-direct
readahead. To ensure that the on-disk and cached data is consistant for
such last cached page, make sure to always invalidate it in
zonefs_file_dio_append(). If the invalidation fails, return -EBUSY to
userspace to differentiate from IO errors.

This invalidation will always be a no-op when the FS block size (device
zone write granularity) is equal to the page size (e.g. 4K).

Reported-by: Hans Holmberg <Hans.Holmberg@wdc.com>
Fixes: 02ef12a663c7 ("zonefs: use REQ_OP_ZONE_APPEND for sync DIO")
Cc: stable@vger.kernel.org
Signed-off-by: Damien Le Moal <damien.lemoal@opensource.wdc.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Johannes Thumshirn <johannes.thumshirn@wdc.com>
Tested-by: Hans Holmberg <hans.holmberg@wdc.com>
19 months agoMerge branch 'fix-header-length-on-skb-merging'
Paolo Abeni [Thu, 30 Mar 2023 08:47:51 +0000 (10:47 +0200)]
Merge branch 'fix-header-length-on-skb-merging'

Arseniy Krasnov says:

====================
fix header length on skb merging

this patchset fixes appending newly arrived skbuff to the last skbuff of
the socket's queue during rx path. Problem fires when we are trying to
append data to skbuff which was already processed in dequeue callback
at least once. Dequeue callback calls function 'skb_pull()' which changes
'skb->len'. In current implementation 'skb->len' is used to update length
in header of last skbuff after new data was copied to it. This is bug,
because value in header is used to calculate 'rx_bytes'/'fwd_cnt' and
thus must be constant during skbuff lifetime. Here is example, we have
two skbuffs: skb0 with length 10 and skb1 with length 4.

1) skb0 arrives, hdr->len == skb->len == 10, rx_bytes == 10
2) Read 3 bytes from skb0, skb->len == 7, hdr->len == 10, rx_bytes == 10
3) skb1 arrives, hdr->len == skb->len == 4, rx_bytes == 14
4) Append skb1 to skb0, skb0 now has skb->len == 11, hdr->len == 11.
   But value of 11 in header is invalid.
5) Read whole skb0, update rx_bytes by 11 from skb0's header.
6) At this moment rx_bytes == 3, but socket's queue is empty.

This bug starts to fire since:

commit
077706165717 ("virtio/vsock: don't use skbuff state to account credit")

In fact, it presents before, but didn't triggered due to a little bit
buggy implementation of credit calculation logic. So i'll use Fixes tag
for it.

I really forgot about this branch in rx path when implemented patch
077706165717.

This patchset contains 3 patches:
1) Fix itself.
2) Patch with WARN_ONCE() to catch such problems in future.
3) Patch with test which triggers skb appending logic. It looks like
   simple test with several 'send()' and 'recv()', but it checks, that
   skbuff appending works ok.
====================

Link: https://lore.kernel.org/r/0683cc6e-5130-484c-1105-ef2eb792d355@sberdevices.ru
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
19 months agotest/vsock: new skbuff appending test
Arseniy Krasnov [Tue, 28 Mar 2023 11:33:07 +0000 (14:33 +0300)]
test/vsock: new skbuff appending test

This adds test which checks case when data of newly received skbuff is
appended to the last skbuff in the socket's queue. It looks like simple
test with 'send()' and 'recv()', but internally it triggers logic which
appends one received skbuff to another. Test checks that this feature
works correctly.

This test is actual only for virtio transport.

Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
19 months agovirtio/vsock: WARN_ONCE() for invalid state of socket
Arseniy Krasnov [Tue, 28 Mar 2023 11:32:12 +0000 (14:32 +0300)]
virtio/vsock: WARN_ONCE() for invalid state of socket

This adds WARN_ONCE() and return from stream dequeue callback when
socket's queue is empty, but 'rx_bytes' still non-zero. This allows
the detection of potential bugs due to packet merging (see previous
patch).

Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
19 months agovirtio/vsock: fix header length on skb merging
Arseniy Krasnov [Tue, 28 Mar 2023 11:31:28 +0000 (14:31 +0300)]
virtio/vsock: fix header length on skb merging

This fixes appending newly arrived skbuff to the last skbuff of the
socket's queue. Problem fires when we are trying to append data to skbuff
which was already processed in dequeue callback at least once. Dequeue
callback calls function 'skb_pull()' which changes 'skb->len'. In current
implementation 'skb->len' is used to update length in header of the last
skbuff after new data was copied to it. This is bug, because value in
header is used to calculate 'rx_bytes'/'fwd_cnt' and thus must be not
be changed during skbuff's lifetime.

Bug starts to fire since:

commit 077706165717
("virtio/vsock: don't use skbuff state to account credit")

It presents before, but didn't triggered due to a little bit buggy
implementation of credit calculation logic. So use Fixes tag for it.

Fixes: 077706165717 ("virtio/vsock: don't use skbuff state to account credit")
Signed-off-by: Arseniy Krasnov <AVKrasnov@sberdevices.ru>
Reviewed-by: Stefano Garzarella <sgarzare@redhat.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
19 months agoMerge branch 'bnxt_en-3-bug-fixes'
Jakub Kicinski [Thu, 30 Mar 2023 04:48:18 +0000 (21:48 -0700)]
Merge branch 'bnxt_en-3-bug-fixes'

Michael Chan says:

====================
bnxt_en: 3 Bug fixes

This series contains 3 small bug fixes covering ethtool self test, PCI
ID string typos, and some missing 200G link speed ethtool reporting logic.
====================

Link: https://lore.kernel.org/r/20230329013021.5205-1-michael.chan@broadcom.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agobnxt_en: Add missing 200G link speed reporting
Michael Chan [Wed, 29 Mar 2023 01:30:21 +0000 (18:30 -0700)]
bnxt_en: Add missing 200G link speed reporting

bnxt_fw_to_ethtool_speed() is missing the case statement for 200G
link speed reported by firmware.  As a result, ethtool will report
unknown speed when the firmware reports 200G link speed.

Fixes: 532262ba3b84 ("bnxt_en: ethtool: support PAM4 link speeds up to 200G")
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agobnxt_en: Fix typo in PCI id to device description string mapping
Kalesh AP [Wed, 29 Mar 2023 01:30:20 +0000 (18:30 -0700)]
bnxt_en: Fix typo in PCI id to device description string mapping

Fix 57502 and 57508 NPAR description string entries.  The typos
caused these devices to not match up with lspci output.

Fixes: 49c98421e6ab ("bnxt_en: Add PCI IDs for 57500 series NPAR devices.")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agobnxt_en: Fix reporting of test result in ethtool selftest
Kalesh AP [Wed, 29 Mar 2023 01:30:19 +0000 (18:30 -0700)]
bnxt_en: Fix reporting of test result in ethtool selftest

When the selftest command fails, driver is not reporting the failure
by updating the "test->flags" when bnxt_close_nic() fails.

Fixes: eb51365846bc ("bnxt_en: Add basic ethtool -t selftest support.")
Reviewed-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Reviewed-by: Somnath Kotur <somnath.kotur@broadcom.com>
Signed-off-by: Kalesh AP <kalesh-anakkur.purayil@broadcom.com>
Signed-off-by: Michael Chan <michael.chan@broadcom.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agoi40e: fix registers dump after run ethtool adapter self test
Radoslaw Tyl [Tue, 28 Mar 2023 17:26:59 +0000 (10:26 -0700)]
i40e: fix registers dump after run ethtool adapter self test

Fix invalid registers dump from ethtool -d ethX after adapter self test
by ethtool -t ethY. It causes invalid data display.

The problem was caused by overwriting i40e_reg_list[].elements
which is common for ethtool self test and dump.

Fixes: 22dd9ae8afcc ("i40e: Rework register diagnostic")
Signed-off-by: Radoslaw Tyl <radoslawx.tyl@intel.com>
Reviewed-by: Michal Swiatkowski <michal.swiatkowski@linux.intel.com>
Tested-by: Arpana Arland <arpanax.arland@intel.com> (A Contingent worker at Intel)
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230328172659.3906413-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agoMerge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net...
Jakub Kicinski [Thu, 30 Mar 2023 04:46:18 +0000 (21:46 -0700)]
Merge branch '100GbE' of git://git./linux/kernel/git/tnguy/net-queue

Tony Nguyen says:

====================
Intel Wired LAN Driver Updates 2023-03-28 (ice)

This series contains updates to ice driver only.

Jesse fixes mismatched header documentation reported when building with
W=1.

Brett restricts setting of VSI context to only applicable fields for the
given ICE_AQ_VSI_PROP_Q_OPT_VALID bit.

Junfeng adds check when adding Flow Director filters that conflict with
existing filter rules.

Jakob Koschel adds interim variable for iterating to prevent possible
misuse after looping.

* '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/net-queue:
  ice: fix invalid check for empty list in ice_sched_assoc_vsi_to_agg()
  ice: add profile conflict check for AVF FDIR
  ice: Fix ice_cfg_rdma_fltr() to only update relevant fields
  ice: fix W=1 headers mismatch
====================

Link: https://lore.kernel.org/r/20230328172035.3904953-1-anthony.l.nguyen@intel.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agoMerge tag 'ieee802154-for-net-2023-03-29' of git://git.kernel.org/pub/scm/linux/kerne...
Jakub Kicinski [Thu, 30 Mar 2023 04:41:12 +0000 (21:41 -0700)]
Merge tag 'ieee802154-for-net-2023-03-29' of git://git./linux/kernel/git/wpan/wpan

Stefan Schmidt says:

====================
ieee802154 for net 2023-03-29

Two small fixes this time.

Dongliang Mu removed an unnecessary null pointer check.

Harshit Mogalapalli fixed an int comparison unsigned against signed from a
recent other fix in the ca8210 driver.

* tag 'ieee802154-for-net-2023-03-29' of git://git.kernel.org/pub/scm/linux/kernel/git/wpan/wpan:
  net: ieee802154: remove an unnecessary null pointer check
  ca8210: Fix unsigned mac_len comparison with zero in ca8210_skb_tx()
====================

Link: https://lore.kernel.org/r/20230329064541.2147400-1-stefan@datenfreihafen.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agobnx2x: use the right build_skb() helper
Jakub Kicinski [Wed, 29 Mar 2023 00:00:13 +0000 (17:00 -0700)]
bnx2x: use the right build_skb() helper

build_skb() no longer accepts slab buffers. Since slab use is fairly
uncommon we prefer the drivers to call a separate slab_build_skb()
function appropriately.

bnx2x uses the old semantics where size of 0 meant buffer from slab.
It sets the fp->rx_frag_size to 0 for MTUs which don't fit in a page.
It needs to call slab_build_skb().

This fixes the WARN_ONCE() of incorrect API use seen with bnx2x.

Reported-by: Thomas Voegtle <tv@lio96.de>
Link: https://lore.kernel.org/all/b8f295e4-ba57-8bfb-7d9c-9d62a498a727@lio96.de/
Fixes: ce098da1497c ("skbuff: Introduce slab_build_skb()")
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230329000013.2734957-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonet: ipa: compute DMA pool size properly
Alex Elder [Tue, 28 Mar 2023 16:27:51 +0000 (11:27 -0500)]
net: ipa: compute DMA pool size properly

In gsi_trans_pool_init_dma(), the total size of a pool of memory
used for DMA transactions is calculated.  However the calculation is
done incorrectly.

For 4KB pages, this total size is currently always more than one
page, and as a result, the calculation produces a positive (though
incorrect) total size.  The code still works in this case; we just
end up with fewer DMA pool entries than we intended.

Bjorn Andersson tested booting a kernel with 16KB pages, and hit a
null pointer derereference in sg_alloc_append_table_from_pages(),
descending from gsi_trans_pool_init_dma().  The cause of this was
that a 16KB total size was going to be allocated, and with 16KB
pages the order of that allocation is 0.  The total_size calculation
yielded 0, which eventually led to the crash.

Correcting the total_size calculation fixes the problem.

Reported-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Tested-by: Bjorn Andersson <quic_bjorande@quicinc.com>
Fixes: 9dd441e4ed57 ("soc: qcom: ipa: GSI transactions")
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Alex Elder <elder@linaro.org>
Reviewed-by: Leon Romanovsky <leonro@nvidia.com>
Link: https://lore.kernel.org/r/20230328162751.2861791-1-elder@linaro.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agonvme-tcp: fix a possible UAF when failing to allocate an io queue
Sagi Grimberg [Mon, 20 Mar 2023 13:33:34 +0000 (15:33 +0200)]
nvme-tcp: fix a possible UAF when failing to allocate an io queue

When we allocate a nvme-tcp queue, we set the data_ready callback before
we actually need to use it. This creates the potential that if a stray
controller sends us data on the socket before we connect, we can trigger
the io_work and start consuming the socket.

In this case reported: we failed to allocate one of the io queues, and
as we start releasing the queues that we already allocated, we get
a UAF [1] from the io_work which is running before it should really.

Fix this by setting the socket ops callbacks only before we start the
queue, so that we can't accidentally schedule the io_work in the
initialization phase before the queue started. While we are at it,
rename nvme_tcp_restore_sock_calls to pair with nvme_tcp_setup_sock_ops.

[1]:
[16802.107284] nvme nvme4: starting error recovery
[16802.109166] nvme nvme4: Reconnecting in 10 seconds...
[16812.173535] nvme nvme4: failed to connect socket: -111
[16812.173745] nvme nvme4: Failed reconnect attempt 1
[16812.173747] nvme nvme4: Reconnecting in 10 seconds...
[16822.413555] nvme nvme4: failed to connect socket: -111
[16822.413762] nvme nvme4: Failed reconnect attempt 2
[16822.413765] nvme nvme4: Reconnecting in 10 seconds...
[16832.661274] nvme nvme4: creating 32 I/O queues.
[16833.919887] BUG: kernel NULL pointer dereference, address: 0000000000000088
[16833.920068] nvme nvme4: Failed reconnect attempt 3
[16833.920094] #PF: supervisor write access in kernel mode
[16833.920261] nvme nvme4: Reconnecting in 10 seconds...
[16833.920368] #PF: error_code(0x0002) - not-present page
[16833.921086] Workqueue: nvme_tcp_wq nvme_tcp_io_work [nvme_tcp]
[16833.921191] RIP: 0010:_raw_spin_lock_bh+0x17/0x30
...
[16833.923138] Call Trace:
[16833.923271]  <TASK>
[16833.923402]  lock_sock_nested+0x1e/0x50
[16833.923545]  nvme_tcp_try_recv+0x40/0xa0 [nvme_tcp]
[16833.923685]  nvme_tcp_io_work+0x68/0xa0 [nvme_tcp]
[16833.923824]  process_one_work+0x1e8/0x390
[16833.923969]  worker_thread+0x53/0x3d0
[16833.924104]  ? process_one_work+0x390/0x390
[16833.924240]  kthread+0x124/0x150
[16833.924376]  ? set_kthread_struct+0x50/0x50
[16833.924518]  ret_from_fork+0x1f/0x30
[16833.924655]  </TASK>

Reported-by: Yanjun Zhang <zhangyanjun@cestc.cn>
Signed-off-by: Sagi Grimberg <sagi@grimberg.me>
Tested-by: Yanjun Zhang <zhangyanjun@cestc.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
19 months agodrm/amd/display: Take FEC Overhead into Timeslot Calculation
Fangzhi Zuo [Wed, 1 Mar 2023 02:34:58 +0000 (21:34 -0500)]
drm/amd/display: Take FEC Overhead into Timeslot Calculation

8b/10b encoding needs to add 3% fec overhead into the pbn.
In the Synapcis Cascaded MST hub, the first stage MST branch device
needs the information to determine the timeslot count for the
second stage MST branch device. Missing this overhead will leads to
insufficient timeslot allocation.

Cc: stable@vger.kernel.org
Cc: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
19 months agodrm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub
Fangzhi Zuo [Fri, 24 Feb 2023 18:45:21 +0000 (13:45 -0500)]
drm/amd/display: Add DSC Support for Synaptics Cascaded MST Hub

Traditional synaptics hub has one MST branch device without virtual dpcd.
Synaptics cascaded hub has two chained MST branch devices. DSC decoding
is performed via root MST branch device, instead of the second MST branch
device.

Reviewed-by: Hersen Wu <hersenxs.wu@amd.com>
Acked-by: Qingqing Zhuo <qingqing.zhuo@amd.com>
Signed-off-by: Fangzhi Zuo <Jerry.Zuo@amd.com>
Tested-by: Daniel Wheeler <daniel.wheeler@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org
19 months agoMerge patch series "RISC-V: Fixes for riscv_has_extension[un]likely()'s alternative...
Palmer Dabbelt [Wed, 29 Mar 2023 18:48:41 +0000 (11:48 -0700)]
Merge patch series "RISC-V: Fixes for riscv_has_extension[un]likely()'s alternative dependency"

Conor Dooley <conor.dooley@microchip.com> says:

Here's my attempt at fixing both the use of an FPU on XIP kernels and
the issue that Jason ran into where CONFIG_FPU, which needs the
alternatives frame work for has_fpu() checks, could be enabled without
the alternatives actually being present.

For the former, a "slow" fallback that does not use alternatives is
added to riscv_has_extension_[un]likely() that can be used with XIP.
Obviously, we want to make use of Jisheng's alternatives based approach
where possible, so any users of riscv_has_extension_[un]likely() will
want to make sure that they select RISCV_ALTERNATIVE.
If they don't however, they'll hit the fallback path which (should,
sparing a silly mistake from me!) behave in the same way, thus
succeeding silently. Sounds like a

To prevent "depends on !XIP_KERNEL; select RISCV_ALTERNATIVE" spreading
like the plague through the various places that want to check for the
presence of extensions, and sidestep the potential silent "success"
mentioned above, all users RISCV_ALTERNATIVE are converted from selects
to dependencies, with the option being selected for all !XIP_KERNEL
builds.

I know that the VDSO was a key place that Jisheng wanted to use the new
helper rather than static branches, and I think the fallback path
should not cause issues there.

See the thread at [1] for the prior discussion.

1 - https://lore.kernel.org/linux-riscv/20230128172856.3814-1-jszhang@kernel.org/T/#m21390d570997145d31dd8bb95002fd61f99c6573

[Palmer: merging in the fixes as a branch as there's some features that
depend on it.]

* b4-shazam-merge:
  RISC-V: always select RISCV_ALTERNATIVE for non-xip kernels
  RISC-V: add non-alternative fallback for riscv_has_extension_[un]likely()

Link: https://lore.kernel.org/r/20230324100538.3514663-1-conor.dooley@microchip.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
19 months agoRISC-V: always select RISCV_ALTERNATIVE for non-xip kernels
Conor Dooley [Fri, 24 Mar 2023 10:05:39 +0000 (10:05 +0000)]
RISC-V: always select RISCV_ALTERNATIVE for non-xip kernels

When moving switch_to's has_fpu() over to using
riscv_has_extension_likely() rather than static branches, the FPU code
gained a dependency on the alternatives framework.
That dependency has now been removed, as riscv_has_extension_ikely() now
contains a fallback path, using __riscv_isa_extension_available(), but
if CONFIG_RISCV_ALTERNATIVE isn't selected when CONFIG_FPU is, has_fpu()
checks will not benefit from the "fast path" that the alternatives
framework provides.

We want to ensure that alternatives are available whenever
riscv_has_extension_[un]likely() is used, rather than silently falling
back to the slow path, but rather than rely on selecting
RISCV_ALTERNATIVE in the myriad of locations that may use
riscv_has_extension_[un]likely(), select it (almost) always instead by
adding it to the main RISCV config entry.
xip kernels cannot make use of the alternatives framework, so it is not
enabled for those configurations, although this is the status quo.

All current sites that select RISCV_ALTERNATIVE are converted to
dependencies on the option instead. The explicit dependencies on
!XIP_KERNEL can be dropped, as RISCV_ALTERNATIVE is not user selectable.

Fixes: 702e64550b12 ("riscv: fpu: switch has_fpu() to riscv_has_extension_likely()")
Link: https://lore.kernel.org/all/ZBruFRwt3rUVngPu@zx2c4.com/
Reported-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20230324100538.3514663-3-conor.dooley@microchip.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
19 months agoRISC-V: add non-alternative fallback for riscv_has_extension_[un]likely()
Conor Dooley [Fri, 24 Mar 2023 10:05:38 +0000 (10:05 +0000)]
RISC-V: add non-alternative fallback for riscv_has_extension_[un]likely()

The has_fpu() check, which in turn calls riscv_has_extension_likely(),
relies on alternatives to figure out whether the system has an FPU.
As a result, it will malfunction on XIP kernels, as they do not support
the alternatives mechanism.

When alternatives support is not present, fall back to using
__riscv_isa_extension_available() in riscv_has_extension_[un]likely()
instead stead, which handily takes the same argument, so that kernels
that do not support alternatives can accurately report the presence of
FPU support.

Fixes: 702e64550b12 ("riscv: fpu: switch has_fpu() to riscv_has_extension_likely()")
Link: https://lore.kernel.org/all/ad445951-3d13-4644-94d9-e0989cda39c3@spud/
Signed-off-by: Conor Dooley <conor.dooley@microchip.com>
Reviewed-by: Andrew Jones <ajones@ventanamicro.com>
Reviewed-by: Jason A. Donenfeld <Jason@zx2c4.com>
Link: https://lore.kernel.org/r/20230324100538.3514663-2-conor.dooley@microchip.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
19 months agothermal: intel: int340x: processor_thermal: Fix additional deadlock
Srinivas Pandruvada [Wed, 29 Mar 2023 15:22:07 +0000 (08:22 -0700)]
thermal: intel: int340x: processor_thermal: Fix additional deadlock

Commit 52f04f10b900 ("thermal: intel: int340x: processor_thermal: Fix
deadlock") addressed deadlock issue during user space trip update. But it
missed a case when thermal zone device is disabled when user writes 0.

Call to thermal_zone_device_disable() also causes deadlock as it also
tries to lock tz->lock, which is already claimed by trip_point_temp_store()
in the thermal core code.

Remove call to thermal_zone_device_disable() in the function
sys_set_trip_temp(), which is called from trip_point_temp_store().

Fixes: 52f04f10b900 ("thermal: intel: int340x: processor_thermal: Fix deadlock")
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Cc: 6.2+ <stable@vger.kernel.org> # 6.2+
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
19 months agomd: fix regression for null-ptr-deference in __md_stop()
Yu Kuai [Tue, 28 Mar 2023 09:44:00 +0000 (17:44 +0800)]
md: fix regression for null-ptr-deference in __md_stop()

Commit 3e453522593d ("md: Free resources in __md_stop") tried to fix
null-ptr-deference for 'active_io' by moving percpu_ref_exit() to
__md_stop(), however, the commit also moving 'writes_pending' to
__md_stop(), and this will cause mdadm tests broken:

BUG: kernel NULL pointer dereference, address: 0000000000000038
Oops: 0000 [#1] PREEMPT SMP
CPU: 15 PID: 17830 Comm: mdadm Not tainted 6.3.0-rc3-next-20230324-00009-g520d37
RIP: 0010:free_percpu+0x465/0x670
Call Trace:
 <TASK>
 __percpu_ref_exit+0x48/0x70
 percpu_ref_exit+0x1a/0x90
 __md_stop+0xe9/0x170
 do_md_stop+0x1e1/0x7b0
 md_ioctl+0x90c/0x1aa0
 blkdev_ioctl+0x19b/0x400
 vfs_ioctl+0x20/0x50
 __x64_sys_ioctl+0xba/0xe0
 do_syscall_64+0x6c/0xe0
 entry_SYSCALL_64_after_hwframe+0x63/0xcd

And the problem can be reporduced 100% by following test:

mdadm -CR /dev/md0 -l1 -n1 /dev/sda --force
echo inactive > /sys/block/md0/md/array_state
echo read-auto  > /sys/block/md0/md/array_state
echo inactive > /sys/block/md0/md/array_state

Root cause:

// start raid
raid1_run
 mddev_init_writes_pending
  percpu_ref_init

// inactive raid
array_state_store
 do_md_stop
  __md_stop
   percpu_ref_exit

// start raid again
array_state_store
 do_md_run
  raid1_run
   mddev_init_writes_pending
    if (mddev->writes_pending.percpu_count_ptr)
    // won't reinit

// inactive raid again
...
percpu_ref_exit
-> null-ptr-deference

Before the commit, 'writes_pending' is exited when mddev is freed, and
it's safe to restart raid because mddev_init_writes_pending() already make
sure that 'writes_pending' will only be initialized once.

Fix the prblem by moving 'writes_pending' back, it's a litter hard to find
the relationship between alloc memory and free memory, however, code
changes is much less and we lived with this for a long time already.

Fixes: 3e453522593d ("md: Free resources in __md_stop")
Signed-off-by: Yu Kuai <yukuai3@huawei.com>
Reviewed-by: Xiao Ni <xni@redhat.com>
Signed-off-by: Song Liu <song@kernel.org>
Link: https://lore.kernel.org/r/20230328094400.1448955-1-yukuai1@huaweicloud.com
19 months agoMerge tag 'xtensa-20230327' of https://github.com/jcmvbkbc/linux-xtensa
Linus Torvalds [Wed, 29 Mar 2023 17:24:07 +0000 (10:24 -0700)]
Merge tag 'xtensa-20230327' of https://github.com/jcmvbkbc/linux-xtensa

Pull xtensa fixes from Max Filippov:

 - fix KASAN report in show_stack

 - drop linux-xtensa mailing list from the MAINTAINERS file

* tag 'xtensa-20230327' of https://github.com/jcmvbkbc/linux-xtensa:
  MAINTAINERS: xtensa: drop linux-xtensa@linux-xtensa.org mailing list
  xtensa: fix KASAN report for show_stack

19 months agoMerge tag 'f2fs-fix-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk...
Linus Torvalds [Wed, 29 Mar 2023 17:13:37 +0000 (10:13 -0700)]
Merge tag 'f2fs-fix-6.3-rc5' of git://git./linux/kernel/git/jaegeuk/f2fs

Pull f2fs fix from Jaegeuk Kim:
 "This fixes a tracepoint field size in f2fs in preparation for stricter
  rules for tracing fields"

* tag 'f2fs-fix-6.3-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs:
  f2fs: Fix f2fs_truncate_partial_nodes ftrace event

19 months agoio_uring/rsrc: fix rogue rsrc node grabbing
Pavel Begunkov [Wed, 29 Mar 2023 14:03:43 +0000 (15:03 +0100)]
io_uring/rsrc: fix rogue rsrc node grabbing

We should not be looking at ctx->rsrc_node and anyhow modifying the node
without holding uring_lock, grabbing references in such a way is not
safe either.

Cc: stable@vger.kernel.org
Fixes: 5106dd6e74ab6 ("io_uring: propagate issue_flags state down to file assignment")
Signed-off-by: Pavel Begunkov <asml.silence@gmail.com>
Link: https://lore.kernel.org/r/1202ede2d7bb90136e3482b2b84aad9ed483e5d6.1680098433.git.asml.silence@gmail.com
Signed-off-by: Jens Axboe <axboe@kernel.dk>
19 months agodrm: test: Fix 32-bit issue in drm_buddy_test
David Gow [Wed, 29 Mar 2023 06:55:34 +0000 (14:55 +0800)]
drm: test: Fix 32-bit issue in drm_buddy_test

The drm_buddy_test KUnit tests verify that returned blocks have sizes
which are powers of two using is_power_of_2(). However, is_power_of_2()
operations on a 'long', but the block size is a u64. So on systems where
long is 32-bit, this can sometimes fail even on correctly sized blocks.

This only reproduces randomly, as the parameters passed to the buddy
allocator in this test are random. The seed 0xb2e06022 reproduced it
fine here.

For now, just hardcode an is_power_of_2() implementation using
x & (x - 1).

Signed-off-by: David Gow <davidgow@google.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Maíra Canal <mcanal@igalia.com>
Reviewed-by: Arunpravin Paneer Selvam <arunpravin.paneerselvam@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329065532.2122295-2-davidgow@google.com
Signed-off-by: Christian König <christian.koenig@amd.com>
19 months agodrm: buddy_allocator: Fix buddy allocator init on 32-bit systems
David Gow [Wed, 29 Mar 2023 06:55:32 +0000 (14:55 +0800)]
drm: buddy_allocator: Fix buddy allocator init on 32-bit systems

The drm buddy allocator tests were broken on 32-bit systems, as
rounddown_pow_of_two() takes a long, and the buddy allocator handles
64-bit sizes even on 32-bit systems.

This can be reproduced with the drm_buddy_allocator KUnit tests on i386:
./tools/testing/kunit/kunit.py run --arch i386 \
--kunitconfig ./drivers/gpu/drm/tests drm_buddy

(It results in kernel BUG_ON() when too many blocks are created, due to
the block size being too small.)

This was independently uncovered (and fixed) by Luís Mendes, whose patch
added a new u64 variant of rounddown_pow_of_two(). This version instead
recalculates the size based on the order.

Reported-by: Luís Mendes <luis.p.mendes@gmail.com>
Link: https://lore.kernel.org/lkml/CAEzXK1oghXAB_KpKpm=-CviDQbNaH0qfgYTSSjZgvvyj4U78AA@mail.gmail.com/T/
Signed-off-by: David Gow <davidgow@google.com>
Acked-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Arunpravin Paneer Selvam <arunpravin.paneerselvam@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230329065532.2122295-1-davidgow@google.com
Signed-off-by: Christian König <christian.koenig@amd.com>
19 months agoALSA: hda/realtek: Add quirk for Lenovo ZhaoYang CF4620Z
huangwenhui [Tue, 28 Mar 2023 07:46:44 +0000 (15:46 +0800)]
ALSA: hda/realtek: Add quirk for Lenovo ZhaoYang CF4620Z

Fix headset microphone detection on Lenovo ZhaoYang CF4620Z.

[ adjusted to be applicable to the latest tree -- tiwai ]

Signed-off-by: huangwenhui <huangwenhuia@uniontech.com>
Cc: <stable@vger.kernel.org>
Link: https://lore.kernel.org/r/20230328074644.30142-1-huangwenhuia@uniontech.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
19 months agopowerpc/pseries/vas: Ignore VAS update for DLPAR if copy/paste is not enabled
Haren Myneni [Tue, 21 Mar 2023 02:50:08 +0000 (19:50 -0700)]
powerpc/pseries/vas: Ignore VAS update for DLPAR if copy/paste is not enabled

The hypervisor supports user-mode NX from Power10.

pseries_vas_dlpar_cpu() is called from lparcfg_write() to update VAS
windows for DLPAR event in shared processor mode and the kernel gets
-ENOTSUPP for HCALLs if the user-mode NX is not supported. The current
VAS implementation also supports only with Radix page tables. Whereas in
dedicated processor mode, pseries_vas_notifier() is registered only if
the copy/paste feature is enabled. So instead of displaying HCALL error
messages, update VAS capabilities if the copy/paste feature is
available.

This patch ignores updating VAS capabilities in pseries_vas_dlpar_cpu()
and returns success if the copy/paste feature is not enabled. Then
lparcfg_write() completes the processor DLPAR operations without any
failures.

Fixes: 2147783d6bf0 ("powerpc/pseries: Use lparcfg to reconfig VAS windows for DLPAR CPU")
Cc: stable@vger.kernel.org # v6.1+
Signed-off-by: Haren Myneni <haren@linux.ibm.com>
Reviewed-by: Nathan Lynch <nathanl@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://msgid.link/1d0e727e7dbd9a28627ef08ca9df9c86a50175e2.camel@linux.ibm.com
19 months agocacheinfo: Fix LLC is not exported through sysfs
Yicong Yang [Tue, 28 Mar 2023 11:49:15 +0000 (19:49 +0800)]
cacheinfo: Fix LLC is not exported through sysfs

After entering 6.3-rc1 the LLC cacheinfo is not exported on our ACPI
based arm64 server. This is because the LLC cacheinfo is partly reset
when secondary CPUs boot up. On arm64 the primary cpu will allocate
and setup cacheinfo:
init_cpu_topology()
  for_each_possible_cpu()
    fetch_cache_info() // Allocate cacheinfo and init levels
detect_cache_attributes()
  cache_shared_cpu_map_setup()
    if (!last_level_cache_is_valid()) // not valid, setup LLC
      cache_setup_properties() // setup LLC

On secondary CPU boot up:
detect_cache_attributes()
  populate_cache_leaves()
    get_cache_type() // Get cache type from clidr_el1,
                     // for LLC type=CACHE_TYPE_NOCACHE
  cache_shared_cpu_map_setup()
    if (!last_level_cache_is_valid()) // Valid and won't go to this branch,
                                      // leave LLC's type=CACHE_TYPE_NOCACHE

The last_level_cache_is_valid() use cacheinfo->{attributes, fw_token} to
test it's valid or not, but populate_cache_leaves() will only reset
LLC's type, so we won't try to re-setup LLC's type and leave it
CACHE_TYPE_NOCACHE and won't export it through sysfs.

This patch tries to fix this by not re-populating the cache leaves if
the LLC is valid.

Fixes: 5944ce092b97 ("arch_topology: Build cacheinfo from primary CPU")
Signed-off-by: Yicong Yang <yangyicong@hisilicon.com>
Reviewed-by: Pierre Gondois <pierre.gondois@arm.com>
Reviewed-by: Sudeep Holla <sudeep.holla@arm.com>
Link: https://lore.kernel.org/r/20230328114915.33340-1-yangyicong@huawei.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
19 months agodrm/nouveau/kms: Fix backlight registration
Hans de Goede [Sun, 26 Mar 2023 20:54:33 +0000 (22:54 +0200)]
drm/nouveau/kms: Fix backlight registration

The nouveau code used to call drm_fb_helper_initial_config() from
nouveau_fbcon_init() before calling drm_dev_register(). This would
probe all connectors so that drm_connector->status could be used during
backlight registration which runs from nouveau_connector_late_register().

After commit 4a16dd9d18a0 ("drm/nouveau/kms: switch to drm fbdev helpers")
the fbdev emulation code, which now is a drm-client, can only run after
drm_dev_register(). So during backlight registration the connectors are
not probed yet and the drm_connector->status == connected check in
nv50_backlight_init() would now always fail.

Replace the drm_connector->status == connected check with
a drm_helper_probe_detect() == connected check to fix nv_backlight
no longer getting registered because of this.

Fixes: 4a16dd9d18a0 ("drm/nouveau/kms: switch to drm fbdev helpers")
Link: https://gitlab.freedesktop.org/drm/nouveau/-/issues/202
Link: https://bugzilla.redhat.com/show_bug.cgi?id=2181941
Signed-off-by: Hans de Goede <hdegoede@redhat.com>
Reviewed-by: Lyude Paul <lyude@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20230326205433.36485-1-hdegoede@redhat.com
19 months agodt-bindings: pinctrl: qcom,sm8550-lpass-lpi: allow input-enabled and bias-bus-hold
Krzysztof Kozlowski [Fri, 24 Mar 2023 08:41:27 +0000 (09:41 +0100)]
dt-bindings: pinctrl: qcom,sm8550-lpass-lpi: allow input-enabled and bias-bus-hold

Add missing common pin configuration properties: input-enabled and
bias-bus-hold.

Fixes: 268e97ccc311 ("dt-bindings: pinctrl: qcom,sm8550-lpass-lpi-pinctrl: add SM8550 LPASS")
Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
Link: https://lore.kernel.org/r/20230324084127.29362-1-krzysztof.kozlowski@linaro.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>
19 months agonet: wwan: iosm: fixes 7560 modem crash
M Chetan Kumar [Tue, 28 Mar 2023 06:28:44 +0000 (11:58 +0530)]
net: wwan: iosm: fixes 7560 modem crash

ModemManger/Apps probing the wwan0xmmrpc0 port for 7560 Modem results in
modem crash.

7560 Modem FW uses the MBIM interface for control command communication
whereas 7360 uses Intel RPC interface so disable wwan0xmmrpc0 port for
7560.

Fixes: d08b0f8f46e4 ("net: wwan: iosm: add rpc interface for xmm modems")
Reported-and-tested-by: Martin <mwolf@adiumentum.com>
Link: https://bugzilla.kernel.org/show_bug.cgi?id=217200
Signed-off-by: M Chetan Kumar <m.chetan.kumar@linux.intel.com>
Signed-off-by: Shane Parslow <shaneparslow808@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
19 months agoALSA: ymfpci: Fix BUG_ON in probe function
Tasos Sahanidis [Wed, 29 Mar 2023 03:28:08 +0000 (06:28 +0300)]
ALSA: ymfpci: Fix BUG_ON in probe function

The snd_dma_buffer.bytes field now contains the aligned size, which this
snd_BUG_ON() did not account for, resulting in the following:

[    9.625915] ------------[ cut here ]------------
[    9.633440] WARNING: CPU: 0 PID: 126 at sound/pci/ymfpci/ymfpci_main.c:2168 snd_ymfpci_create+0x681/0x698 [snd_ymfpci]
[    9.648926] Modules linked in: snd_ymfpci(+) snd_intel_dspcfg kvm(+) snd_intel_sdw_acpi snd_ac97_codec snd_mpu401_uart snd_opl3_lib irqbypass snd_hda_codec gameport snd_rawmidi crct10dif_pclmul crc32_pclmul cfg80211 snd_hda_core polyval_clmulni polyval_generic gf128mul snd_seq_device ghash_clmulni_intel snd_hwdep ac97_bus sha512_ssse3 rfkill snd_pcm aesni_intel tg3 snd_timer crypto_simd snd mxm_wmi libphy cryptd k10temp fam15h_power pcspkr soundcore sp5100_tco wmi acpi_cpufreq mac_hid dm_multipath sg loop fuse dm_mod bpf_preload ip_tables x_tables ext4 crc32c_generic crc16 mbcache jbd2 sr_mod cdrom ata_generic pata_acpi firewire_ohci crc32c_intel firewire_core xhci_pci crc_itu_t pata_via xhci_pci_renesas floppy
[    9.711849] CPU: 0 PID: 126 Comm: kworker/0:2 Not tainted 6.1.21-1-lts #1 08d2e5ece03136efa7c6aeea9a9c40916b1bd8da
[    9.722200] Hardware name: To Be Filled By O.E.M. To Be Filled By O.E.M./990FX Extreme4, BIOS P2.70 06/05/2014
[    9.732204] Workqueue: events work_for_cpu_fn
[    9.736580] RIP: 0010:snd_ymfpci_create+0x681/0x698 [snd_ymfpci]
[    9.742594] Code: 8c c0 4c 89 e2 48 89 df 48 c7 c6 92 c6 8c c0 e8 15 d0 e9 ff 48 83 c4 08 44 89 e8 5b 5d 41 5c 41 5d 41 5e 41 5f e9 d3 7a 33 e3 <0f> 0b e9 cb fd ff ff 41 bd fb ff ff ff eb db 41 bd f4 ff ff ff eb
[    9.761358] RSP: 0018:ffffab64804e7da0 EFLAGS: 00010287
[    9.766594] RAX: ffff8fa2df06c400 RBX: ffff8fa3073a8000 RCX: ffff8fa303fbc4a8
[    9.773734] RDX: ffff8fa2df06d000 RSI: 0000000000000010 RDI: 0000000000000020
[    9.780876] RBP: ffff8fa300b5d0d0 R08: ffff8fa3073a8e50 R09: 00000000df06bf00
[    9.788018] R10: ffff8fa2df06bf00 R11: 00000000df068200 R12: ffff8fa3073a8918
[    9.795159] R13: 0000000000000000 R14: 0000000000000080 R15: ffff8fa2df068200
[    9.802317] FS:  0000000000000000(0000) GS:ffff8fa9fec00000(0000) knlGS:0000000000000000
[    9.810414] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    9.816158] CR2: 000055febaf66500 CR3: 0000000101a2e000 CR4: 00000000000406f0
[    9.823301] Call Trace:
[    9.825747]  <TASK>
[    9.827889]  snd_card_ymfpci_probe+0x194/0x950 [snd_ymfpci b78a5fe64b5663a6390a909c67808567e3e73615]
[    9.837030]  ? finish_task_switch.isra.0+0x90/0x2d0
[    9.841918]  local_pci_probe+0x45/0x80
[    9.845680]  work_for_cpu_fn+0x1a/0x30
[    9.849431]  process_one_work+0x1c7/0x380
[    9.853464]  worker_thread+0x1af/0x390
[    9.857225]  ? rescuer_thread+0x3b0/0x3b0
[    9.861254]  kthread+0xde/0x110
[    9.864414]  ? kthread_complete_and_exit+0x20/0x20
[    9.869210]  ret_from_fork+0x22/0x30
[    9.872792]  </TASK>
[    9.874985] ---[ end trace 0000000000000000 ]---

Fixes: 5c1733e33c88 ("ALSA: memalloc: Align buffer allocations in page size")
Signed-off-by: Tasos Sahanidis <tasos@tasossah.com>
Link: https://lore.kernel.org/r/20230329032808.170403-1-tasos@tasossah.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
19 months agoALSA: ymfpci: Create card with device-managed snd_devm_card_new()
Tasos Sahanidis [Wed, 29 Mar 2023 03:24:22 +0000 (06:24 +0300)]
ALSA: ymfpci: Create card with device-managed snd_devm_card_new()

snd_card_ymfpci_remove() was removed in commit c6e6bb5eab74 ("ALSA:
ymfpci: Allocate resources with device-managed APIs"), but the call to
snd_card_new() was not replaced with snd_devm_card_new().

Since there was no longer a call to snd_card_free, unloading the module
would eventually result in Oops:

[697561.532887] BUG: unable to handle page fault for address: ffffffffc0924480
[697561.532893] #PF: supervisor read access in kernel mode
[697561.532896] #PF: error_code(0x0000) - not-present page
[697561.532899] PGD ae1e15067 P4D ae1e15067 PUD ae1e17067 PMD 11a8f5067 PTE 0
[697561.532905] Oops: 0000 [#1] PREEMPT SMP NOPTI
[697561.532909] CPU: 21 PID: 5080 Comm: wireplumber Tainted: G        W  OE      6.2.7 #1
[697561.532914] Hardware name: System manufacturer System Product Name/TUF GAMING X570-PLUS, BIOS 4408 10/28/2022
[697561.532916] RIP: 0010:try_module_get.part.0+0x1a/0xe0
[697561.532924] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 0f 1f 44 00 00 55 48 89 e5 41 55 41 54 49 89 fc bf 01 00 00 00 e8 56 3c f8 ff <41> 83 3c 24 02 0f 84 96 00 00 00 41 8b 84 24 30 03 00 00 85 c0 0f
[697561.532927] RSP: 0018:ffffbe9b858c3bd8 EFLAGS: 00010246
[697561.532930] RAX: ffff9815d14f1900 RBX: ffff9815c14e6000 RCX: 0000000000000000
[697561.532933] RDX: 0000000000000000 RSI: ffffffffc055092c RDI: ffffffffb3778c1a
[697561.532935] RBP: ffffbe9b858c3be8 R08: 0000000000000040 R09: ffff981a1a741380
[697561.532937] R10: ffffbe9b858c3c80 R11: 00000009d56533a6 R12: ffffffffc0924480
[697561.532939] R13: ffff9823439d8500 R14: 0000000000000025 R15: ffff9815cd109f80
[697561.532942] FS:  00007f13084f1f80(0000) GS:ffff9824aef40000(0000) knlGS:0000000000000000
[697561.532945] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[697561.532947] CR2: ffffffffc0924480 CR3: 0000000145344000 CR4: 0000000000350ee0
[697561.532949] Call Trace:
[697561.532951]  <TASK>
[697561.532955]  try_module_get+0x13/0x30
[697561.532960]  snd_ctl_open+0x61/0x1c0 [snd]
[697561.532976]  snd_open+0xb4/0x1e0 [snd]
[697561.532989]  chrdev_open+0xc7/0x240
[697561.532995]  ? fsnotify_perm.part.0+0x6e/0x160
[697561.533000]  ? __pfx_chrdev_open+0x10/0x10
[697561.533005]  do_dentry_open+0x169/0x440
[697561.533009]  vfs_open+0x2d/0x40
[697561.533012]  path_openat+0xa9d/0x10d0
[697561.533017]  ? debug_smp_processor_id+0x17/0x20
[697561.533022]  ? trigger_load_balance+0x65/0x370
[697561.533026]  do_filp_open+0xb2/0x160
[697561.533032]  ? _raw_spin_unlock+0x19/0x40
[697561.533036]  ? alloc_fd+0xa9/0x190
[697561.533040]  do_sys_openat2+0x9f/0x160
[697561.533044]  __x64_sys_openat+0x55/0x90
[697561.533048]  do_syscall_64+0x3b/0x90
[697561.533052]  entry_SYSCALL_64_after_hwframe+0x72/0xdc
[697561.533056] RIP: 0033:0x7f1308a40db4
[697561.533059] Code: 24 20 eb 8f 66 90 44 89 54 24 0c e8 46 68 f8 ff 44 8b 54 24 0c 44 89 e2 48 89 ee 41 89 c0 bf 9c ff ff ff b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 32 44 89 c7 89 44 24 0c e8 78 68 f8 ff 8b 44
[697561.533062] RSP: 002b:00007ffcce664450 EFLAGS: 00000293 ORIG_RAX: 0000000000000101
[697561.533066] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1308a40db4
[697561.533068] RDX: 0000000000080000 RSI: 00007ffcce664690 RDI: 00000000ffffff9c
[697561.533070] RBP: 00007ffcce664690 R08: 0000000000000000 R09: 0000000000000012
[697561.533072] R10: 0000000000000000 R11: 0000000000000293 R12: 0000000000080000
[697561.533074] R13: 00007f13054b069b R14: 0000565209f83200 R15: 0000000000000000
[697561.533078]  </TASK>

Fixes: c6e6bb5eab74 ("ALSA: ymfpci: Allocate resources with device-managed APIs")
Signed-off-by: Tasos Sahanidis <tasos@tasossah.com>
Link: https://lore.kernel.org/r/20230329032422.170024-1-tasos@tasossah.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
19 months agonet: ethernet: mtk_eth_soc: fix tx throughput regression with direct 1G links
Felix Fietkau [Fri, 24 Mar 2023 14:04:04 +0000 (15:04 +0100)]
net: ethernet: mtk_eth_soc: fix tx throughput regression with direct 1G links

Using the QDMA tx scheduler to throttle tx to line speed works fine for
switch ports, but apparently caused a regression on non-switch ports.

Based on a number of tests, it seems that this throttling can be safely
dropped without re-introducing the issues on switch ports that the
tx scheduling changes resolved.

Link: https://lore.kernel.org/netdev/trinity-92c3826f-c2c8-40af-8339-bc6d0d3ffea4-1678213958520@3c-app-gmx-bs16/
Fixes: f63959c7eec3 ("net: ethernet: mtk_eth_soc: implement multi-queue support for per-port queues")
Reported-by: Frank Wunderlich <frank-w@public-files.de>
Reported-by: Daniel Golle <daniel@makrotopia.org>
Tested-by: Daniel Golle <daniel@makrotopia.org>
Signed-off-by: Felix Fietkau <nbd@nbd.name>
Link: https://lore.kernel.org/r/20230324140404.95745-1-nbd@nbd.name
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
19 months agobtrfs: ignore fiemap path cache when there are multiple paths for a node
Filipe Manana [Tue, 28 Mar 2023 09:45:20 +0000 (10:45 +0100)]
btrfs: ignore fiemap path cache when there are multiple paths for a node

During fiemap, when walking backreferences to determine if a b+tree
node/leaf is shared, we may find a tree block (leaf or node) for which
two parents were added to the references ulist. This happens if we get
for example one direct ref (shared tree block ref) and one indirect ref
(non-shared tree block ref) for the tree block at the current level,
which can happen during relocation.

In that case the fiemap path cache can not be used since it's meant for
a single path, with one tree block at each possible level, so having
multiple references for a tree block at any level may result in getting
the level counter exceed BTRFS_MAX_LEVEL and eventually trigger the
warning:

   WARN_ON_ONCE(level >= BTRFS_MAX_LEVEL)

at lookup_backref_shared_cache() and at store_backref_shared_cache().
This is harmless since the code ignores any level >= BTRFS_MAX_LEVEL, the
warning is there just to catch any unexpected case like the one described
above. However if a user finds this it may be scary and get reported.

So just ignore the path cache once we find a tree block for which there
are more than one reference, which is the less common case, and update
the cache with the sharedness check result for all levels below the level
for which we found multiple references.

Reported-by: Jarno Pelkonen <jarno.pelkonen@gmail.com>
Link: https://lore.kernel.org/linux-btrfs/CAKv8qLmDNAGJGCtsevxx_VZ_YOvvs1L83iEJkTgyA4joJertng@mail.gmail.com/
Fixes: 12a824dc67a6 ("btrfs: speedup checking for extent sharedness during fiemap")
CC: stable@vger.kernel.org # 6.1+
Signed-off-by: Filipe Manana <fdmanana@suse.com>
Signed-off-by: David Sterba <dsterba@suse.com>