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Author SHA1 Message Date
Daniel Golle
a046d6fc54 net: dsa: mxl-gsw1xx: validate chip ID 
No check for actually present hardware is being performed in the probe
function of the mxl-gsw1xx switch driver. So even if the switch isn't
present at the configured MDIO bus address the driver wrongly tells the
user that a "GSWIP version 0 mod 0" was found, outputting errors about
PHY capabilities not matching.

Read and validate the chip MANU_ID and PNUM_ID registers and output
information while probing, but return an error and abort probing in case
the hardware is not actually present.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/3194d3d3bb0b51f08755d392e1fdf7bb6dc49608.1769916962.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2026-02-10 09:09:27 +01:00
Daniel Golle
ffd034ac09 net: dsa: mxl-gsw1xx: configure SerDes port polarities 
Configure SerDes (port 4) RX and TX polarities using the newly
introduced generic properties. The polarities are described at the port
level which equals the polarities of the external pins of the chip.

Note that the RX lane is inverted internally and the vendor driver
simply always sets bit GSW1XX_SGMII_PHY_RX0_CFG2_INVERT unconditionally
to end up with the correct (ie. as documented in datasheets) polarity at
the external pins.

In this sense, PHY_POLARITY_NORMAL denotes normal polarity for pins as
documented for the MRQFN 105-pin package (GSW120, GSW125, GSW140, GSW141
and GSW145 all use the same package and have identical pin layouts
except for TP port 2 and 3 being N/C on GSW12x):
pin B18 (TX0_P) positive signal of the differential SGMII data output pair
pin B19 (TX0_M) negative signal of the differential SGMII data output pair
pin B20 (RX0_P) positive signal of the differential SGMII data input pair
pin B21 (RX0_M) negative signal of the differential SGMII data input pair

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Link: https://patch.msgid.link/8bf79b3476e23673fceffbe2bc9d6abc13d132e5.1769916962.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2026-02-10 09:09:26 +01:00
Daniel Golle
431b777762 dt-bindings: net: dsa: lantiq,gswip: reference common PHY properties 
Reference the common PHY properties so RX and TX SerDes lane polarity
of the SGMII/1000Base-X/2500Base-X port can be configured.

Signed-off-by: Daniel Golle <daniel@makrotopia.org>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Link: https://patch.msgid.link/f556ef8be75e37a2f864b9d905a78962bbe76d18.1769916962.git.daniel@makrotopia.org
Reviewed-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
 2026-02-10 09:09:26 +01:00
Rakesh Kota
ab2e361ca9 dt-bindings: input: qcom,pm8941-pwrkey: Document PMM8654AU 
Add compatible strings for PMM8654AU power key and resin support.
These blocks are compatible with PMK8350, so use that as the
fallback.

Signed-off-by: Rakesh Kota <rakesh.kota@oss.qualcomm.com>
Reviewed-by: Krzysztof Kozlowski <krzysztof.kozlowski@oss.qualcomm.com>
Link: https://patch.msgid.link/20260209-add_pwrkey_and_resin-v2-2-f944d87b9a93@oss.qualcomm.com
Signed-off-by: Dmitry Torokhov <dmitry.torokhov@gmail.com>
 2026-02-09 22:19:55 -08:00
Chaitanya Kumar Borah
55c19e27c5 drm/i915/color: Add failure handling in plane color pipeline init 
The plane color pipeline initialization built up multiple colorop blocks
inline, but did not reliably clean up partially constructed pipelines
when an intermediate step failed. This could lead to leaked colorop
objects and fragile error handling as the pipeline grows.

Refactor the pipeline construction to use a common helper for adding
colorop blocks. This centralizes allocation, initialization, and
teardown logic, allowing the caller to reliably unwind all previously
created colorops on failure.

v2:
 - Refactor code to avoid repetition (Suraj)

v3:
 - s/nvl/xe3plpd (Suraj)

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-10-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:13 +05:30
Chaitanya Kumar Borah
3c2d28f4a6 drm/colorop: Use destroy callback for color pipeline teardown 
Switch drm_colorop_pipeline_destroy() to use the driver-provided
destroy callback instead of directly calling drm_colorop_cleanup()
and freeing the object.

This allows drivers that embed struct drm_colorop in driver-specific
objects to perform correct teardown.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-9-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:11 +05:30
Chaitanya Kumar Borah
fe057ba431 drm/vkms: Remove drm_colorop_pipeline_destroy() from vkms_destroy() 
Now that colorops are cleaned from drm_mode_config_cleanup(), remove
drm_colorop_pipeline_destroy() from  vkms_destroy().

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-8-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:10 +05:30
Chaitanya Kumar Borah
fa15259eb6 drm: Clean up colorop objects during mode_config cleanup 
Tear down all registered drm_colorop objects during
drm_mode_config_cleanup() by invoking their destroy callbacks.

This ensures proper cleanup of color pipeline objects during DRM device
removal.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-7-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:09 +05:30
Chaitanya Kumar Borah
a6e1c068be drm/i915/display: Hook up intel_colorop_destroy 
i915 embeds struct drm_colorop inside struct intel_colorop, so the
default drm_colorop_destroy() helper cannot be used. Add an
intel_colorop_destroy() helper that performs common DRM cleanup and
frees intel_colorop object.

This ensures correct teardown of plane color pipeline objects.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-6-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:07 +05:30
Chaitanya Kumar Borah
f3d51fbe48 drm/vkms: Hook up colorop destroy helper for plane pipelines 
Provide a drm_colorop_funcs instance for vkms color pipeline
objects and hook up the common drm_colorop_destroy() helper as the
destroy callback.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-5-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:06 +05:30
Chaitanya Kumar Borah
3f85dd9b8a drm/amd/display: Hook up colorop destroy helper for plane pipelines 
Provide a drm_colorop_funcs instance for amdgpu_dm color pipeline
objects and hook up the common drm_colorop_destroy() helper as the
destroy callback.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-4-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:04 +05:30
Chaitanya Kumar Borah
2864667476 drm: Allow driver-managed destruction of colorop objects 
Some drivers might want to embed struct drm_colorop inside
driver-specific objects, similar to planes or CRTCs. In such
cases, freeing only the drm_colorop is incorrect.

Add a drm_colorop_funcs callback to allow drivers to provide a destroy
hook that cleans up the full enclosing object. Make changes in helper
functions to accept helper functions as argument. Pass NULL for now
to retain current behavior.

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-3-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:02 +05:30
Chaitanya Kumar Borah
24a4241995 drm/colorop: Add destroy helper for colorop objects 
Add a helper that performs common cleanup and frees the
associated object. This can be used by drivers if they do not
require any driver-specific teardown.

v2:
- Add function documentation only before definition (Jani)

Signed-off-by: Chaitanya Kumar Borah <chaitanya.kumar.borah@intel.com>
Reviewed-by: Suraj Kandpal <suraj.kandpal@intel.com>
Reviewed-by: Uma Shankar <uma.shankar@intel.com>
Reviewed-by: Alex Hung <alex.hung@amd.com>
Acked-by: Jani Nikula <jani.nikula@intel.com>
Signed-off-by: Suraj Kandpal <suraj.kandpal@intel.com>
Link: https://patch.msgid.link/20260202094202.2871478-2-chaitanya.kumar.borah@intel.com
 2026-02-10 11:03:00 +05:30
Jakub Kicinski
71e1eab8d2 Merge branch 'net-stats-tools-driver-tests-for-hw-gro' 
Jakub Kicinski says:

====================
net: stats, tools, driver tests for HW GRO [part]

Add miscellaneous pieces related to production use of HW-GRO:
 - report standard stats from drivers (bnxt included here,
   Gal recently posted patches for mlx5 which is great)
 - CLI tool for calculating HW GRO savings / effectiveness
====================

Link: https://patch.msgid.link/20260207003509.3927744-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2026-02-09 21:08:39 -08:00
Jakub Kicinski
c61a375315 tools: ynltool: add qstats analysis for HW-GRO efficiency / savings 
Extend ynltool to compute HW GRO savings metric - how many
packets has HW GRO been able to save the kernel from seeing.

Note that this definition does not actually take into account
whether the segments were or weren't eligible for HW GRO.
If a machine is receiving all-UDP traffic - new metric will show
HW-GRO savings of 0%. Conversely since the super-packet still
counts as a received packet, savings of 100% is not achievable.
Perfect HW-GRO on a machine with 4k MTU and 64kB super-frames
would show ~93.75% savings. With 1.5k MTU we may see up to
~97.8% savings (if my math is right).

Example after 10 sec of iperf on a freshly booted machine
with 1.5k MTU:

  $ ynltool qstats show
  eth0     rx-packets:  40681280               rx-bytes:   61575208437
        rx-alloc-fail:         0      rx-hw-gro-packets:       1225133
                                 rx-hw-gro-wire-packets:      40656633
  $ ynltool qstats hw-gro
  eth0: 96.9% savings

None of the NICs I have access to can report "missed" HW-GRO
opportunities so computing a true "effectiveness" metric
is not possible. One could also argue that effectiveness metric
is inferior in environments where we control both senders and
receivers, the savings metrics will capture both regressions
in receiver's HW GRO effectiveness but also regressions in senders
sending smaller TSO trains. And we care about both. The main
downside is that it's hard to tell at a glance how well the NIC
is doing because the savings will be dependent on traffic patterns.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20260207003509.3927744-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2026-02-09 21:08:32 -08:00
Jakub Kicinski
5374c334d6 tools: ynltool: factor out qstat dumping 
The logic to open a socket and dump the queues is the same
across sub-commands. Factor it out, we'll need it again.

No functional changes intended.

Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://patch.msgid.link/20260207003509.3927744-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2026-02-09 21:08:32 -08:00
Jakub Kicinski
a7fc1a488f eth: bnxt: gather and report HW-GRO stats 
Count and report HW-GRO stats as seen by the kernel.
The device stats for GRO seem to not reflect the reality,
perhaps they count sessions which did not actually result
in any aggregation. Also they count wire packets, so we
have to count super-frames, anyway.

Reviewed-by: Michael Chan <michael.chan@broadcom.com>
Link: https://patch.msgid.link/20260207003509.3927744-2-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2026-02-09 21:08:32 -08:00
Linus Torvalds
72c395024d A slightly calmer cycle for docs this time around, though there is still a 
fair amount going on, including:
 
 - Some signs of life on the long-moribund Japanese translation
 
 - Documentation on policies around the use of generative tools for patch
   submissions, and a separate document intended for consumption by
   generative tools.
 
 - The completion of the move of the documentation tools to tools/docs.  For
   now we're leaving a /scripts/kernel-doc symlink behind to avoid breaking
   scripts.
 
 - Ongoing build-system work includes the incorporation of documentation in
   Python code, better support for documenting variables, and lots of
   improvements and fixes.
 
 - Automatic linking of man-page references -- cat(1), for example -- to
   the online pages in the HTML build.
 
 ...and the usual array of typo fixes and such.
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Merge tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux

Pull documentation updates from Jonathan Corbet:
 "A slightly calmer cycle for docs this time around, though there is
  still a fair amount going on, including:

   - Some signs of life on the long-moribund Japanese translation

   - Documentation on policies around the use of generative tools for
     patch submissions, and a separate document intended for consumption
     by generative tools

   - The completion of the move of the documentation tools to
     tools/docs. For now we're leaving a /scripts/kernel-doc symlink
     behind to avoid breaking scripts

   - Ongoing build-system work includes the incorporation of
     documentation in Python code, better support for documenting
     variables, and lots of improvements and fixes

   - Automatic linking of man-page references -- cat(1), for example --
     to the online pages in the HTML build

  ...and the usual array of typo fixes and such"

* tag 'docs-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (107 commits)
  doc: development-process: add notice on testing
  tools: sphinx-build-wrapper: improve its help message
  docs: sphinx-build-wrapper: allow -v override -q
  docs: kdoc: Fix pdfdocs build for tools
  docs: ja_JP: process: translate 'Obtain a current source tree'
  docs: fix 're-use' -> 'reuse' in documentation
  docs: ioctl-number: fix a typo in ioctl-number.rst
  docs: filesystems: ensure proc pid substitutable is complete
  docs: automarkup.py: Skip common English words as C identifiers
  Documentation: use a source-read extension for the index link boilerplate
  docs: parse_features: make documentation more consistent
  docs: add parse_features module documentation
  docs: jobserver: do some documentation improvements
  docs: add jobserver module documentation
  docs: kabi: helpers: add documentation for each "enum" value
  docs: kabi: helpers: add helper for debug bits 7 and 8
  docs: kabi: system_symbols: end docstring phrases with a dot
  docs: python: abi_regex: do some improvements at documentation
  docs: python: abi_parser: do some improvements at documentation
  docs: add kabi modules documentation
  ...
 2026-02-09 20:53:18 -08:00
Linus Torvalds
0c61526621 EFI updates for v7.0 
- Quirk the broken EFI framebuffer geometry on the Valve Steam Deck
 
 - Capture the EDID information of the primary display also on non-x86
   EFI systems when booting via the EFI stub.
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Merge tag 'efi-next-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi

Pull EFI updates from Ard Biesheuvel:

 - Quirk the broken EFI framebuffer geometry on the Valve Steam Deck

 - Capture the EDID information of the primary display also on non-x86
   EFI systems when booting via the EFI stub.

* tag 'efi-next-for-v7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/efi/efi:
  efi: Support EDID information
  sysfb: Move edid_info into sysfb_primary_display
  sysfb: Pass sysfb_primary_display to devices
  sysfb: Replace screen_info with sysfb_primary_display
  sysfb: Add struct sysfb_display_info
  efi: sysfb_efi: Reduce number of references to global screen_info
  efi: earlycon: Reduce number of references to global screen_info
  efi: sysfb_efi: Fix efidrmfb and simpledrmfb on Valve Steam Deck
  efi: sysfb_efi: Convert swap width and height quirk to a callback
  efi: sysfb_efi: Fix lfb_linelength calculation when applying quirks
  efi: sysfb_efi: Replace open coded swap with the macro
 2026-02-09 20:49:19 -08:00
Linus Torvalds
33120a2f8f xen: branch for v7.0-rc1 
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Merge tag 'for-linus-7.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - fix running as Xen PVH guest in 32-bit mode without PAE

 - fix PV device handling for suspend/resume when running as
   a Xen guest

 - clean up workqueue usage

 - fix the Xen balloon driver for PVH dom0

 - introduce the possibility to use hypercalls for console
   messages in unprivileged guests

 - enable Xen dom0 use of virtio devices in nested virtualization
   setups

 - simplify the xen-mcelog driver

* tag 'for-linus-7.0-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xenbus: Rename helpers to freeze/thaw/restore
  xenbus: Use .freeze/.thaw to handle xenbus devices
  xen/mcelog: simplify MCE_GETCLEAR_FLAGS using xchg()
  xen/balloon: improve accuracy of initial balloon target for dom0
  Partial revert "x86/xen: fix balloon target initialization for PVH dom0"
  xen: introduce xen_console_io option
  xen/virtio: Don't use grant-dma-ops when running as Dom0
  x86/xen/pvh: Enable PAE mode for 32-bit guest only when CONFIG_X86_PAE is set
  xen: privcmd: WQ_PERCPU added to alloc_workqueue users
  xen/events: replace use of system_wq with system_percpu_wq
 2026-02-09 20:38:27 -08:00
Linus Torvalds
45bf4bc87c arm64 updates for 7.0 
ACPI:
  - Add interrupt signalling support to the AGDI handler.
  - Add Catalin and myself to the arm64 ACPI MAINTAINERS entry.
 
 CPU features:
 - Drop Kconfig options for PAN and LSE (these are detected at runtime).
 - Add support for 64-byte single-copy atomic instructions (LS64/LS64V).
 - Reduce MTE overhead when executing in the kernel on Ampere CPUs.
 - Ensure POR_EL0 value exposed via ptrace is up-to-date.
 - Fix error handling on GCS allocation failure.
 
 CPU frequency:
 - Add CPU hotplug support to the FIE setup in the AMU driver.
 
 Entry code:
 - Minor optimisations and cleanups to the syscall entry path.
 - Preparatory rework for moving to the generic syscall entry code.
 
 Hardware errata:
 - Work around Spectre-BHB on TSV110 processors.
 - Work around broken CMO propagation on some systems with the SI-L1
   interconnect.
 
 Miscellaneous:
 - Disable branch profiling for arch/arm64/ to avoid issues with noinstr.
 - Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
   WARN_ON(), reduction of boolean expression).
 - Fix custom __READ_ONCE() implementation for LTO builds when operating
   on non-atomic types.
 
 Perf and PMUs:
 - Support for CMN-600AE.
 - Be stricter about supported hardware in the CMN driver.
 - Support for DSU-110 and DSU-120.
 - Support for the cycles event in the DSU driver (alongside the
   dedicated cycles counter).
 - Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver.
 - Use !bitmap_empty() as a faster alternative to bitmap_weight().
 - Fix SPE error handling when failing to resume profiling.
 
 Selftests:
 - Add support for the FORCE_TARGETS option to the arm64 kselftests.
 - Avoid nolibc-specific my_syscall() function.
 - Add basic test for the LS64 HWCAP.
 - Extend fp-pidbench to cover additional workload patterns.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 updates from Will Deacon:
 "There's a little less than normal, probably due to LPC & Christmas/New
  Year meaning that a few series weren't quite ready or reviewed in
  time. It's still useful across the board, despite the only real
  feature being support for the LS64 feature enabling 64-byte atomic
  accesses to endpoints that support it.

  ACPI:
   - Add interrupt signalling support to the AGDI handler
   - Add Catalin and myself to the arm64 ACPI MAINTAINERS entry

  CPU features:
   - Drop Kconfig options for PAN and LSE (these are detected at runtime)
   - Add support for 64-byte single-copy atomic instructions (LS64/LS64V)
   - Reduce MTE overhead when executing in the kernel on Ampere CPUs
   - Ensure POR_EL0 value exposed via ptrace is up-to-date
   - Fix error handling on GCS allocation failure

  CPU frequency:
   - Add CPU hotplug support to the FIE setup in the AMU driver

  Entry code:
   - Minor optimisations and cleanups to the syscall entry path
   - Preparatory rework for moving to the generic syscall entry code

  Hardware errata:
   - Work around Spectre-BHB on TSV110 processors
   - Work around broken CMO propagation on some systems with the SI-L1
     interconnect

  Miscellaneous:
   - Disable branch profiling for arch/arm64/ to avoid issues with
     noinstr
   - Minor fixes and cleanups (kexec + ubsan, WARN_ONCE() instead of
     WARN_ON(), reduction of boolean expression)
   - Fix custom __READ_ONCE() implementation for LTO builds when
     operating on non-atomic types

  Perf and PMUs:
   - Support for CMN-600AE
   - Be stricter about supported hardware in the CMN driver
   - Support for DSU-110 and DSU-120
   - Support for the cycles event in the DSU driver (alongside the
     dedicated cycles counter)
   - Use IRQF_NO_THREAD instead of IRQF_ONESHOT in the cxlpmu driver
   - Use !bitmap_empty() as a faster alternative to bitmap_weight()
   - Fix SPE error handling when failing to resume profiling

  Selftests:
   - Add support for the FORCE_TARGETS option to the arm64 kselftests
   - Avoid nolibc-specific my_syscall() function
   - Add basic test for the LS64 HWCAP
   - Extend fp-pidbench to cover additional workload patterns"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (43 commits)
  perf/arm-cmn: Reject unsupported hardware configurations
  perf: arm_spe: Properly set hw.state on failures
  arm64/gcs: Fix error handling in arch_set_shadow_stack_status()
  arm64: Fix non-atomic __READ_ONCE() with CONFIG_LTO=y
  arm64: poe: fix stale POR_EL0 values for ptrace
  kselftest/arm64: Raise default number of loops in fp-pidbench
  kselftest/arm64: Add a no-SVE loop after SVE in fp-pidbench
  perf/cxlpmu: Replace IRQF_ONESHOT with IRQF_NO_THREAD
  arm64: mte: Set TCMA1 whenever MTE is present in the kernel
  arm64/ptrace: Return early for ptrace_report_syscall_entry() error
  arm64/ptrace: Split report_syscall()
  arm64: Remove unused _TIF_WORK_MASK
  kselftest/arm64: Add missing file in .gitignore
  arm64: errata: Workaround for SI L1 downstream coherency issue
  kselftest/arm64: Add HWCAP test for FEAT_LS64
  arm64: Add support for FEAT_{LS64, LS64_V}
  KVM: arm64: Enable FEAT_{LS64, LS64_V} in the supported guest
  arm64: Provide basic EL2 setup for FEAT_{LS64, LS64_V} usage at EL0/1
  KVM: arm64: Handle DABT caused by LS64* instructions on unsupported memory
  KVM: arm64: Add documentation for KVM_EXIT_ARM_LDST64B
  ...
 2026-02-09 20:28:45 -08:00
Linus Torvalds
9f722cb730 alpha updates for v7.0 
- alpha: fix user-space corruption during memory compaction
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Merge tag 'alpha-for-v7.0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha

Pull alpha update from Magnus Lindholm:

 - alpha: fix user-space corruption during memory compaction

* tag 'alpha-for-v7.0-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha:
  alpha: fix user-space corruption during memory compaction
 2026-02-09 20:22:26 -08:00
Linus Torvalds
7e3a1e0ccc This includes the following changes related to sparc for v7.0: 
- Hardcode uapi ioctls.h TC* constants to not rely upon struct termio
   that has been dropped by glibc
 
 - Fix bug for fork/clone and add support for clone3
 
 - Add ARCH_HAS_CC_CAN_LINK
 
 - API choice improvements and cleanup of unused variables
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Merge tag 'sparc-for-7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc

Pull sparc updates from Andreas Larsson:

 - Hardcode uapi ioctls.h TC* constants to not rely upon struct termio
   that has been dropped by glibc

 - Fix bug for fork/clone and add support for clone3

 - Add ARCH_HAS_CC_CAN_LINK

 - API choice improvements and cleanup of unused variables

* tag 'sparc-for-7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/alarsson/linux-sparc:
  sparc: remove unused variable strtab
  sparc64: fix unused variable warning
  sparc: don't reference obsolete termio struct for TC* constants
  sparc: vio: Replace snprintf with strscpy in vio_create_one
  sparc: Add architecture support for clone3
  sparc: Synchronize user stack on fork and clone
  sparc: Implement ARCH_HAS_CC_CAN_LINK
 2026-02-09 20:20:17 -08:00
Linus Torvalds
b33c3b8404 m68k updates for v7.0 
- Add missing put_device() in the NuBus driver,
   - Replace vsprintf() with vsnprintf() on Sun-3.
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Merge tag 'm68k-for-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

  - Add missing put_device() in the NuBus driver

  - Replace vsprintf() with vsnprintf() on Sun-3

* tag 'm68k-for-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: sun3: Replace vsprintf() with bounded vsnprintf()
  nubus: Call put_device() in bus initialization error path
 2026-02-09 20:18:59 -08:00
Linus Torvalds
c48953d819 s390 updates for 7.0 merge window 
- Drop support for outdated 3590/3592 and 3480 tape devices, and limit
   support to virtualized 3490E types devices
 
 - Implement exception based WARN() and WARN_ONCE() similar to x86
 
 - Slightly optimize preempt primitives like __preempt_count_add() and
   __preempt_count_dec_and_test()
 
 - A couple of small fixes and improvements
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Merge tag 's390-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 updates from Heiko Carstens:

 - Drop support for outdated 3590/3592 and 3480 tape devices, and limit
   support to virtualized 3490E types devices

 - Implement exception based WARN() and WARN_ONCE() similar to x86

 - Slightly optimize preempt primitives like __preempt_count_add() and
   __preempt_count_dec_and_test()

 - A couple of small fixes and improvements

* tag 's390-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux: (35 commits)
  s390/tape: Consolidate tape config options and modules
  s390/cio: Fix device lifecycle handling in css_alloc_subchannel()
  s390/tape: Rename tape_34xx.c to tape_3490.c
  s390/tape: Cleanup sense data analysis and error handling
  s390/tape: Remove 3480 tape device type
  s390/tape: Remove unused command definitions
  s390/tape: Remove special block id handling
  s390/tape: Remove tape load display support
  s390/tape: Remove support for 3590/3592 models
  s390/kexec: Emit an error message when cmdline is too long
  s390/configs: Enable BLK_DEV_NULL_BLK as module
  s390: Document s390 stackprotector support
  s390/perf: Disable register readout on sampling events
  s390/Kconfig: Define non-zero ILLEGAL_POINTER_VALUE
  s390/bug: Prevent tail-call optimization
  s390/bug: Skip __WARN_trap() in call traces
  s390/bug: Implement WARN_ONCE()
  s390/bug: Implement __WARN_printf()
  s390/traps: Copy monitor code to pt_regs
  s390/bug: Introduce and use monitor code macro
  ...
 2026-02-09 20:17:03 -08:00
Linus Torvalds
861ea34546 nolibc changes for 6.20/7.0 
Highlights:
 
 * All time-related functionality uses 64-bit timestamps for
   y2038 compatibility.
 * fread() and fskeek() support.
 * ptrace() support.
 * Addition of libc-test to the regular kselftests.
 * Smaller cleanups and fixes to the code and build system.
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Merge tag 'nolibc-20260206-for-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc

Pull nolibc updates from Thomas Weißschuh:

 - All time-related functionality uses 64-bit timestamps for
   y2038 compatibility

 - fread() and fskeek() support

 - ptrace() support

 - Addition of libc-test to the regular kselftests

 - Smaller cleanups and fixes to the code and build system

* tag 'nolibc-20260206-for-7.0-1' of git://git.kernel.org/pub/scm/linux/kernel/git/nolibc/linux-nolibc: (25 commits)
  tools/nolibc: Add a simple test for writing to a FILE and reading it back
  tools/nolibc: Add fseek() to stdio.h
  tools/nolibc: Add fread() to stdio.h
  selftests/nolibc: also test libc-test through regular selftest framework
  selftests/nolibc: scope custom flags to the nolibc-test target
  selftests/nolibc: try to read from stdin in readv_zero test
  selftests/nolibc: always build sparc32 tests with -mcpu=v8
  tools/nolibc: align sys_vfork() with sys_fork()
  selftests/nolibc: drop NOLIBC_SYSROOT=0 logic
  selftests/nolibc: add static assertions around time types handling
  tools/nolibc: add __nolibc_static_assert()
  tools/nolibc: add compiler version detection macros
  tools/nolibc: remove time conversions
  selftests/nolibc: test compatibility of nolibc and kernel time types
  tools/nolibc: always use 64-bit time types
  tools/nolibc: use custom structs timespec and timeval
  tools/nolibc/select: avoid libgcc 64-bit multiplications
  tools/nolibc/gettimeofday: avoid libgcc 64-bit divisions
  tools/nolibc: prefer explicit 64-bit time-related system calls
  tools/nolibc/time: drop invocation of gettimeofday system call
  ...
 2026-02-09 20:15:14 -08:00
Linus Torvalds
d16738a4e7 The kthread code provides an infrastructure which manages the preferred 
affinity of unbound kthreads (node or custom cpumask) against
 housekeeping (CPU isolation) constraints and CPU hotplug events.
 
 One crucial missing piece is the handling of cpuset: when an isolated
 partition is created, deleted, or its CPUs updated, all the unbound
 kthreads in the top cpuset become indifferently affine to _all_ the
 non-isolated CPUs, possibly breaking their preferred affinity along
 the way.
 
 Solve this with performing the kthreads affinity update from cpuset to
 the kthreads consolidated relevant code instead so that preferred
 affinities are honoured and applied against the updated cpuset isolated
 partitions.
 
 The dispatch of the new isolated cpumasks to timers, workqueues and
 kthreads is performed by housekeeping, as per the nice Tejun's
 suggestion.
 
 As a welcome side effect, HK_TYPE_DOMAIN then integrates both the set
 from boot defined domain isolation (through isolcpus=) and cpuset
 isolated partitions. Housekeeping cpumasks are now modifiable with a
 specific RCU based synchronization. A big step toward making nohz_full=
 also mutable through cpuset in the future.
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Merge tag 'kthread-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks

Pull kthread updates from Frederic Weisbecker:
 "The kthread code provides an infrastructure which manages the
  preferred affinity of unbound kthreads (node or custom cpumask)
  against housekeeping (CPU isolation) constraints and CPU hotplug
  events.

  One crucial missing piece is the handling of cpuset: when an isolated
  partition is created, deleted, or its CPUs updated, all the unbound
  kthreads in the top cpuset become indifferently affine to _all_ the
  non-isolated CPUs, possibly breaking their preferred affinity along
  the way.

  Solve this with performing the kthreads affinity update from cpuset to
  the kthreads consolidated relevant code instead so that preferred
  affinities are honoured and applied against the updated cpuset
  isolated partitions.

  The dispatch of the new isolated cpumasks to timers, workqueues and
  kthreads is performed by housekeeping, as per the nice Tejun's
  suggestion.

  As a welcome side effect, HK_TYPE_DOMAIN then integrates both the set
  from boot defined domain isolation (through isolcpus=) and cpuset
  isolated partitions. Housekeeping cpumasks are now modifiable with a
  specific RCU based synchronization. A big step toward making
  nohz_full= also mutable through cpuset in the future"

* tag 'kthread-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/linux-dynticks: (33 commits)
  doc: Add housekeeping documentation
  kthread: Document kthread_affine_preferred()
  kthread: Comment on the purpose and placement of kthread_affine_node() call
  kthread: Honour kthreads preferred affinity after cpuset changes
  sched/arm64: Move fallback task cpumask to HK_TYPE_DOMAIN
  sched: Switch the fallback task allowed cpumask to HK_TYPE_DOMAIN
  kthread: Rely on HK_TYPE_DOMAIN for preferred affinity management
  kthread: Include kthreadd to the managed affinity list
  kthread: Include unbound kthreads in the managed affinity list
  kthread: Refine naming of affinity related fields
  PCI: Remove superfluous HK_TYPE_WQ check
  sched/isolation: Remove HK_TYPE_TICK test from cpu_is_isolated()
  cpuset: Remove cpuset_cpu_is_isolated()
  timers/migration: Remove superfluous cpuset isolation test
  cpuset: Propagate cpuset isolation update to timers through housekeeping
  cpuset: Propagate cpuset isolation update to workqueue through housekeeping
  PCI: Flush PCI probe workqueue on cpuset isolated partition change
  sched/isolation: Flush vmstat workqueues on cpuset isolated partition change
  sched/isolation: Flush memcg workqueues on cpuset isolated partition change
  cpuset: Update HK_TYPE_DOMAIN cpumask from cpuset
  ...
 2026-02-09 19:57:30 -08:00
Linus Torvalds
0506158ac7 Thermal control updates for 6.20-rc1/7.0-rc1 
- Add Panther Lake, Wildcat Lake and Nova Lake processor IDs to the
    list of supported processors in the intel_tcc_cooling thermal
    driver (Srinivas Pandruvada)
 
  - Drop unnecessary explicit driver data clearing on removal from the
    intel_pch_thermal driver (Kaushlendra Kumar)
 
  - Add support for "slow" workload type hints to the int340x
    processor_thermal driver and enable it on the Panther Lake
    platform (Srinivas Pandruvada)
 
  - Use sysfs_emit{_at}() in sysfs show functions in Intel thermal
    drivers (Thorsten Blum)
 
  - Update the x86_pkg_temp_thermal driver to handle THERMAL_TEMP_INVALID
    that can be passed to it via sysfs as expected (Rafael Wysocki)
 
  - Drop a redundant local variable from the intel_tcc_cooling thermal
    driver and fix a kerneldoc comment typo in the TCC library (Sumeet
    Pawnikar)
 
  - Fix CFLAGS and LDFLAGS in the pkg-config libthermal template (Romain
    Gantois)
 
  - Support multiple temp to raw conversion functions in the Mediatek
    LVTS thermal driver and add MT8196 and MT6991 support to it (Laura
    Nao)
 
  - Add Mediatek LVTS driver support for MT7987 (Frank Wunderlich)
 
  - Use the existing HZ_PER_MHZ macro on STM32 (Andy Shevchenko)
 
  - Use the existing clamp() macro on BCM2835 (Thorsten Blum)
 
  - Make the reset line optional in order to support new Renesas SoCs
    where it is not available and add support for RZ/T2H and RZ/N2H
    to the rzg3e thermal driver (Cosmin Tanislav)
 
  - Document RZ/V2N TSU in the r9a09g047-tsu DT bindings (Ovidiu
    Panait)
 
  - Fix all kernel-doc warnings in the internal thermal core header
    file (Randy Dunlap)
 
  - Fix a device node reference leak in thermal_of_cm_lookup() (Felix Gu)
 
  - Replace some old-style library function calls with ones that are
    currently recommended in several places in the thermal core and
    debugfs code (Sumeet Pawnikar, Thorsten Blum)
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Merge tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "These add support for "slow" (long-term trend) workload type hints to
  the Intel int340x thermal driver and selftests (and enable it for
  Panther Lake), add support for MT8196 along with DT bindings and for
  MT7987 to the Mediatek LVTS thermal driver, add support for RZ/T2H and
  RZ/N2H along with DT bindings to the Renesas rzg3e thermal driver, add
  support for the Panther Lake, Wildcat Lake and Nova Lake processors to
  the intel_tcc_cooling driver, fix bugs, make some cosmetic changes
  including code cleanups and library function substitutions, and update
  documentation.

  Specifics:

   - Add Panther Lake, Wildcat Lake and Nova Lake processor IDs to the
     list of supported processors in the intel_tcc_cooling thermal
     driver (Srinivas Pandruvada)

   - Drop unnecessary explicit driver data clearing on removal from the
     intel_pch_thermal driver (Kaushlendra Kumar)

   - Add support for "slow" workload type hints to the int340x
     processor_thermal driver and enable it on the Panther Lake platform
     (Srinivas Pandruvada)

   - Use sysfs_emit{_at}() in sysfs show functions in Intel thermal
     drivers (Thorsten Blum)

   - Update the x86_pkg_temp_thermal driver to handle
     THERMAL_TEMP_INVALID that can be passed to it via sysfs as expected
     (Rafael Wysocki)

   - Drop a redundant local variable from the intel_tcc_cooling thermal
     driver and fix a kerneldoc comment typo in the TCC library (Sumeet
     Pawnikar)

   - Fix CFLAGS and LDFLAGS in the pkg-config libthermal template
     (Romain Gantois)

   - Support multiple temp to raw conversion functions in the Mediatek
     LVTS thermal driver and add MT8196 and MT6991 support to it (Laura
     Nao)

   - Add Mediatek LVTS driver support for MT7987 (Frank Wunderlich)

   - Use the existing HZ_PER_MHZ macro on STM32 (Andy Shevchenko)

   - Use the existing clamp() macro on BCM2835 (Thorsten Blum)

   - Make the reset line optional in order to support new Renesas SoCs
     where it is not available and add support for RZ/T2H and RZ/N2H to
     the rzg3e thermal driver (Cosmin Tanislav)

   - Document RZ/V2N TSU in the r9a09g047-tsu DT bindings (Ovidiu
     Panait)

   - Fix all kernel-doc warnings in the internal thermal core header
     file (Randy Dunlap)

   - Fix a device node reference leak in thermal_of_cm_lookup() (Felix
     Gu)

   - Replace some old-style library function calls with ones that are
     currently recommended in several places in the thermal core and
     debugfs code (Sumeet Pawnikar, Thorsten Blum)

* tag 'thermal-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (34 commits)
  drivers: thermal: intel: tcc_cooling: Drop redundant local variable
  thermal/of: Fix reference leak in thermal_of_cm_lookup()
  thermal: core: thermal_core.h: fix all kernel-doc warnings
  thermal: intel: x86_pkg_temp_thermal: Handle invalid temperature
  thermal: renesas: rzg3e: add support for RZ/T2H and RZ/N2H
  dt-bindings: thermal: r9a09g047-tsu: document RZ/T2H and RZ/N2H
  thermal: renesas: rzg3e: make calibration value retrieval per-chip
  thermal: renesas: rzg3e: make min and max temperature per-chip
  thermal: renesas: rzg3e: make reset optional
  dt-bindings: thermal: r9a09g047-tsu: Document RZ/V2N TSU
  thermal/drivers/broadcom: Use clamp to simplify bcm2835_thermal_temp2adc
  thermal/drivers/stm32: Use predefined HZ_PER_MHZ instead of a custom one
  thermal/drivers/mediatek/lvts_thermal: Add mt7987 support
  dt-bindings: thermal: mediatek: Add LVTS thermal controller definition for MT7987
  dt-bindings: nvmem: mediatek: efuse: Add support for MT8196
  thermal/drivers/mediatek/lvts_thermal: Add MT8196 support
  thermal/drivers/mediatek/lvts: Support MSR offset for 16-bit calibration data
  thermal/drivers/mediatek/lvts: Add support for ATP mode
  thermal/drivers/mediatek/lvts: Add lvts_temp_to_raw variant
  thermal/drivers/mediatek/lvts: Add platform ops to support alternative conversion logic
  ...
 2026-02-09 19:33:44 -08:00
Yang Xiuwei
daa0b901f8 io_uring/tctx: avoid modifying loop variable in io_ring_add_registered_file 
Use a separate 'idx' variable to store the result of array_index_nospec()
instead of modifying the loop variable 'offset' directly. This improves
code clarity by separating the logical index from the sanitized index
used for array access.

No functional change intended.

Signed-off-by: Yang Xiuwei <yangxiuwei@kylinos.cn>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2026-02-09 20:12:46 -07:00
Caleb Sander Mateos
7cb3a68376 io_uring: simplify IORING_SETUP_DEFER_TASKRUN && !SQPOLL check 
io_uring_sanitise_params() already rejects flags that include both
IORING_SETUP_SQPOLL and IORING_SETUP_DEFER_TASKRUN. So it's unnecessary
to check IORING_SETUP_SQPOLL in io_uring_create() when
IORING_SETUP_DEFER_TASKRUN has already been checked. Drop the
!(ctx->flags & IORING_SETUP_SQPOLL) check for the task_complete case.

Signed-off-by: Caleb Sander Mateos <csander@purestorage.com>
Signed-off-by: Jens Axboe <axboe@kernel.dk>
 2026-02-09 20:12:36 -07:00
Frank Li
55d43aab47 dt-bindings: soc: imx: add fsl,aips and fsl,emi compatible strings 
Add the fsl,aips and fsl,emi compatible strings for legacy i.MX3 SoCs
(over 15 years old).

Signed-off-by: Frank Li <Frank.Li@nxp.com>
Link: https://patch.msgid.link/20260201011913.2419626-1-Frank.Li@nxp.com
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
 2026-02-09 21:04:53 -06:00
Dominik Haller
eb83cb5109 dt-bindings: display: bridge: lt8912b: Drop reset gpio requirement 
Drop the gpio reset from the list of required properties. The bridge works
fine with a reset not managed by Linux. In the driver itself the gpio is
already flagged as optional.

Signed-off-by: Dominik Haller <d.haller@phytec.de>
Link: https://patch.msgid.link/20260130205820.83189-6-d.haller@phytec.de
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
 2026-02-09 21:04:53 -06:00
Linus Torvalds
9b1b3dcd28 Power management updates for 6.20-rc1/7.0-rc1 
- Remove the unused omap-cpufreq driver (Andreas Kemnade)
 
  - Optimize error handling code in cpufreq_boost_trigger_state() and
    make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy
    supports boost (Lifeng Zheng)
 
  - Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
    Dhruva Gole, and Konrad Dybcio)
 
  - Minor improvements to the cpufreq and cpumask rust implementation
    (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen)
 
  - Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole)
 
  - Update arch_freq_scale in the CPPC cpufreq driver's frequency
    invariance engine (FIE) in scheduler ticks if the related CPPC
    registers are not in PCC (Jie Zhan)
 
  - Assorted minor cleanups and improvements in ARM cpufreq drivers (Juan
    Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov)
 
  - Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit
    Gupta)
 
  - Make the scaling_setspeed cpufreq sysfs attribute return the actual
    requested frequency to avoid confusion (Pengjie Zhang)
 
  - Simplify the idle CPU time granularity test in the ondemand cpufreq
    governor (Frederic Weisbecker)
 
  - Enable asym capacity in intel_pstate only when CPU SMT is not
    possible (Yaxiong Tian)
 
  - Update the description of rate_limit_us default value in cpufreq
    documentation (Yaxiong Tian)
 
  - Add a command line option to adjust the C-states table in the
    intel_idle driver, remove the 'preferred_cstates' module parameter
    from it, add C-states validation to it and clean it up (Artem
    Bityutskiy)
 
  - Make the menu cpuidle governor always check the time till the closest
    timer event when the scheduler tick has been stopped to prevent it
    from mistakenly selecting the deepest available idle state (Rafael
    Wysocki)
 
  - Update the teo cpuidle governor to avoid making suboptimal decisions
    in certain corner cases and generally improve idle state selection
    accuracy (Rafael Wysocki)
 
  - Remove an unlikely() annotation on the early-return condition in
    menu_select() that leads to branch misprediction 100% of the time
    on systems with only 1 idle state enabled, like ARM64 servers (Breno
    Leitao)
 
  - Add Christian Loehle to MAINTAINERS as a cpuidle reviewer (Christian
    Loehle)
 
  - Stop flagging the PM runtime workqueue as freezable to avoid system
    suspend and resume deadlocks in subsystems that assume asynchronous
    runtime PM to work during system-wide PM transitions (Rafael Wysocki)
 
  - Drop redundant NULL pointer checks before acomp_request_free() from
    the hibernation code handling image saving (Rafael Wysocki)
 
  - Update wakeup_sources_walk_start() to handle empty lists of wakeup
    sources as appropriate (Samuel Wu)
 
  - Make dev_pm_clear_wake_irq() check the power.wakeirq value under
    power.lock to avoid race conditions (Gui-Dong Han)
 
  - Avoid bit field races related to power.work_in_progress in the core
    device suspend code (Xuewen Yan)
 
  - Make several drivers discard pm_runtime_put() return value in
    preparation for converting that function to a void one (Rafael
    Wysocki)
 
  - Add PL4 support for Ice Lake to the Intel RAPL power capping
    driver (Daniel Tang)
 
  - Replace sprintf() with sysfs_emit() in power capping sysfs show
    functions (Sumeet Pawnikar)
 
  - Make dev_pm_opp_get_level() return value match the documentation
    after a previous update of the latter (Aleks Todorov)
 
  - Use scoped for each OF child loop in the OPP code (Krzysztof
    Kozlowski)
 
  - Fix a bug in an example code snippet and correct typos in the energy
    model management documentation (Patrick Little)
 
  - Fix miscellaneous problems in cpupower (Kaushlendra Kumar):
 
    * idle_monitor: Fix incorrect value logged after stop
    * Fix inverted APERF capability check
    * Use strcspn() to strip trailing newline
    * Reset errno before strtoull()
    * Show C0 in idle-info dump
 
  - Improve cpupower installation procedure by making the systemd step
    optional and allowing users to disable the installation of systemd's
    unit file (João Marcos Costa)
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Merge tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "By the number of commits, cpufreq is the leading party (again) and the
  most visible change there is the removal of the omap-cpufreq driver
  that has not been used for a long time (good riddance). There are also
  quite a few changes in the cppc_cpufreq driver, mostly related to
  fixing its frequency invariance engine in the case when the CPPC
  registers used by it are not in PCC. In addition to that, support for
  AM62L3 is added to the ti-cpufreq driver and the cpufreq-dt-platdev
  list is updated for some platforms. The remaining cpufreq changes are
  assorted fixes and cleanups.

  Next up is cpuidle and the changes there are dominated by intel_idle
  driver updates, mostly related to the new command line facility
  allowing users to adjust the list of C-states used by the driver.
  There are also a few updates of cpuidle governors, including two menu
  governor fixes and some refinements of the teo governor, and a
  MAINTAINERS update adding Christian Loehle as a cpuidle reviewer.
  [Thanks for stepping up Christian!]

  The most significant update related to system suspend and hibernation
  is the one to stop freezing the PM runtime workqueue during system PM
  transitions which allows some deadlocks to be avoided. There is also a
  fix for possible concurrent bit field updates in the core device
  suspend code and a few other minor fixes.

  Apart from the above, several drivers are updated to discard the
  return value of pm_runtime_put() which is going to be converted to a
  void function as soon as everybody stops using its return value, PL4
  support for Ice Lake is added to the Intel RAPL power capping driver,
  and there are assorted cleanups, documentation fixes, and some
  cpupower utility improvements.

  Specifics:

   - Remove the unused omap-cpufreq driver (Andreas Kemnade)

   - Optimize error handling code in cpufreq_boost_trigger_state() and
     make cpufreq_boost_trigger_state() return -EOPNOTSUPP if no policy
     supports boost (Lifeng Zheng)

   - Update cpufreq-dt-platdev list for tegra, qcom, TI (Aaron Kling,
     Dhruva Gole, and Konrad Dybcio)

   - Minor improvements to the cpufreq and cpumask rust implementation
     (Alexandre Courbot, Alice Ryhl, Tamir Duberstein, and Yilin Chen)

   - Add support for AM62L3 SoC to the ti-cpufreq driver (Dhruva Gole)

   - Update arch_freq_scale in the CPPC cpufreq driver's frequency
     invariance engine (FIE) in scheduler ticks if the related CPPC
     registers are not in PCC (Jie Zhan)

   - Assorted minor cleanups and improvements in ARM cpufreq drivers
     (Juan Martinez, Felix Gu, Luca Weiss, and Sergey Shtylyov)

   - Add generic helpers for sysfs show/store to cppc_cpufreq (Sumit
     Gupta)

   - Make the scaling_setspeed cpufreq sysfs attribute return the actual
     requested frequency to avoid confusion (Pengjie Zhang)

   - Simplify the idle CPU time granularity test in the ondemand cpufreq
     governor (Frederic Weisbecker)

   - Enable asym capacity in intel_pstate only when CPU SMT is not
     possible (Yaxiong Tian)

   - Update the description of rate_limit_us default value in cpufreq
     documentation (Yaxiong Tian)

   - Add a command line option to adjust the C-states table in the
     intel_idle driver, remove the 'preferred_cstates' module parameter
     from it, add C-states validation to it and clean it up (Artem
     Bityutskiy)

   - Make the menu cpuidle governor always check the time till the
     closest timer event when the scheduler tick has been stopped to
     prevent it from mistakenly selecting the deepest available idle
     state (Rafael Wysocki)

   - Update the teo cpuidle governor to avoid making suboptimal
     decisions in certain corner cases and generally improve idle state
     selection accuracy (Rafael Wysocki)

   - Remove an unlikely() annotation on the early-return condition in
     menu_select() that leads to branch misprediction 100% of the time
     on systems with only 1 idle state enabled, like ARM64 servers
     (Breno Leitao)

   - Add Christian Loehle to MAINTAINERS as a cpuidle reviewer
     (Christian Loehle)

   - Stop flagging the PM runtime workqueue as freezable to avoid system
     suspend and resume deadlocks in subsystems that assume asynchronous
     runtime PM to work during system-wide PM transitions (Rafael
     Wysocki)

   - Drop redundant NULL pointer checks before acomp_request_free() from
     the hibernation code handling image saving (Rafael Wysocki)

   - Update wakeup_sources_walk_start() to handle empty lists of wakeup
     sources as appropriate (Samuel Wu)

   - Make dev_pm_clear_wake_irq() check the power.wakeirq value under
     power.lock to avoid race conditions (Gui-Dong Han)

   - Avoid bit field races related to power.work_in_progress in the core
     device suspend code (Xuewen Yan)

   - Make several drivers discard pm_runtime_put() return value in
     preparation for converting that function to a void one (Rafael
     Wysocki)

   - Add PL4 support for Ice Lake to the Intel RAPL power capping driver
     (Daniel Tang)

   - Replace sprintf() with sysfs_emit() in power capping sysfs show
     functions (Sumeet Pawnikar)

   - Make dev_pm_opp_get_level() return value match the documentation
     after a previous update of the latter (Aleks Todorov)

   - Use scoped for each OF child loop in the OPP code (Krzysztof
     Kozlowski)

   - Fix a bug in an example code snippet and correct typos in the
     energy model management documentation (Patrick Little)

   - Fix miscellaneous problems in cpupower (Kaushlendra Kumar):
      * idle_monitor: Fix incorrect value logged after stop
      * Fix inverted APERF capability check
      * Use strcspn() to strip trailing newline
      * Reset errno before strtoull()
      * Show C0 in idle-info dump

   - Improve cpupower installation procedure by making the systemd step
     optional and allowing users to disable the installation of
     systemd's unit file (João Marcos Costa)"

* tag 'pm-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (65 commits)
  PM: sleep: core: Avoid bit field races related to work_in_progress
  PM: sleep: wakeirq: harden dev_pm_clear_wake_irq() against races
  cpufreq: Documentation: Update description of rate_limit_us default value
  cpufreq: intel_pstate: Enable asym capacity only when CPU SMT is not possible
  PM: wakeup: Handle empty list in wakeup_sources_walk_start()
  PM: EM: Documentation: Fix bug in example code snippet
  Documentation: Fix typos in energy model documentation
  cpuidle: governors: teo: Refine intercepts-based idle state lookup
  cpuidle: governors: teo: Adjust the classification of wakeup events
  cpufreq: ondemand: Simplify idle cputime granularity test
  cpufreq: userspace: make scaling_setspeed return the actual requested frequency
  PM: hibernate: Drop NULL pointer checks before acomp_request_free()
  cpufreq: CPPC: Add generic helpers for sysfs show/store
  cpufreq: scmi: Fix device_node reference leak in scmi_cpu_domain_id()
  cpufreq: ti-cpufreq: add support for AM62L3 SoC
  cpufreq: dt-platdev: Add ti,am62l3 to blocklist
  cpufreq/amd-pstate: Add comment explaining nominal_perf usage for performance policy
  cpufreq: scmi: correct SCMI explanation
  cpufreq: dt-platdev: Block the driver from probing on more QC platforms
  rust: cpumask: rename methods of Cpumask for clarity and consistency
  ...
 2026-02-09 19:00:42 -08:00
Linus Torvalds
d84e173311 ACPI support updates for 6.20-rc1/7.0-rc1 
- Update the ACPICA code in the kernel to upstream version 20251212
    which includes the following changes:
 
    * Add support for new ACPI table DTPR (Michal Camacho Romero)
    * Release objects with acpi_ut_delete_object_desc() (Zilin Guan)
    * Add UUIDs for Microsoft fan extensions and UUIDs associated with
      TPM 2.0 devices (Armin Wolf)
    * Fix NULL pointer dereference in acpi_ev_address_space_dispatch()
      (Alexey Simakov)
    * Add KEYP ACPI table definition (Dave Jiang)
    * Add support for the Microsoft display mux _OSI string (Armin Wolf)
    * Add definitions for the IOVT ACPI table (Xianglai Li)
    * Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf)
    * Include all fields in subtable type1 for PPTT (Ben Horgan)
    * Add GICv5 MADT structures and Arm IORT IWB node definitions (Jose
      Marinho)
    * Update Parameter Block structure for RAS2 and add a new flag in
      Memory Affinity Structure for SRAT (Pawel Chmielewski)
    * Add _VDM (Voltage Domain) object (Pawel Chmielewski)
 
  - Add support for GICv5 ACPI probing on ARM which is based on the
    GICv5 MADT structures and ARM IORT IWB node definitions recently
    added to ACPICA (Lorenzo Pieralisi)
 
  - Rework ACPI PM notification setup for PCI root buses and modify the
    ACPI PM setup for devices to register wakeup source objects under
    physical (that is, PCI, platform, etc.) devices instead of doing that
    under their ACPI companions (Rafael Wysocki)
 
  - Adjust debug messages regarding postponed ACPI PM printed during
    system resume to be more accurate (Rafael Wysocki)
 
  - Remove dead code from lps0_device_attach() (Gergo Koteles)
 
  - Start to invoke Microsoft Function 9 (Turn On Display) of the Low-
    Power S0 Idle (LPS0) _DSM in the suspend-to-idle resume flow on
    systems with ACPI LPS0 support to address a functional issue on
    Lenovo Yoga Slim 7i Aura (15ILL9), where system fans and keyboard
    backlights fail to resume after suspend (Jakob Riemenschneider)
 
  - Add sysfs attribute cid for exposing _CID lists under ACPI device
    objects (Rafael Wysocki)
 
  - Replace sprintf() with sysfs_emit() in all of the core ACPI sysfs
    interface code (Sumeet Pawnikar)
 
  - Use acpi_get_local_u64_address() in the code implementing ACPI
    support for PCI to evaluate _ADR instead of evaluating that object
    directly (Andy Shevchenko)
 
  - Add JWIPC JVC9100 to irq1_level_low_skip_override[] to unbreak
    serial IRQs on that system (Ai Chao)
 
  - Fix handling of _OSC errors in acpi_run_osc() to avoid failures on
    systems where _OSC error bits are set even though the _OSC return
    buffer contains acknowledged feature bits (Rafael Wysocki)
 
  - Clean up and rearrange \_SB._OSC handling for general platform
    features and USB4 features to avoid code duplication and unnecessary
    memory management overhead (Rafael Wysocki)
 
  - Make the ACPI core device enumeration code handle PNP0C01 and PNP0C02
    ("system resource") device objects directly instead of letting the
    legacy PNP system driver handle them to avoid device enumeration
    issues on systems where PNP0C02 is present in the _CID list under
    ACPI device objects with a _HID matching a proper device driver in
    Linux (Rafael Wysocki)
 
  - Drop workarounds for the known device enumeration issues related to
    _CID lists containing PNP0C02 (Rafael Wysocki)
 
  - Drop outdated comment regarding removed function in the ACPI-based
    device enumeration code (Julia Lawall)
 
  - Make PRP0001 device matching work as expected for ACPI device objects
    using it as a _HID for board development and similar purposes (Kartik
    Rajput)
 
  - Use async schedule function in acpi_scan_clear_dep_fn() to avoid
    races with user space initialization on some systems (Yicong Yang)
 
  - Add a piece of documentation explaining why binding drivers directly
    to ACPI device objects is not a good idea in general and why it is
    desirable to convert drivers doing so into proper platform drivers
    that use struct platform_driver for device binding (Rafael Wysocki)
 
  - Convert multiple "core ACPI" drivers, including the NFIT ACPI device
    driver, the generic ACPI button drivers, the generic ACPI thermal
    zone driver, the ACPI hardware event device (HED) driver, the ACPI EC
    driver, the ACPI SMBUS HC driver, the ACPI Smart Battery Subsystem
    (SBS) driver, and the ACPI backlight (video) driver to proper platform
    drivers that use struct platform_driver for device binding (Rafael
    Wysocki)
 
  - Use acpi_get_local_u64_address() in the ACPI backlight (video) driver
    to evaluate _ADR instead of evaluating that object directly (Andy
    Shevchenko)
 
  - Convert the generic ACPI battery driver to a proper platform driver
    using struct platform_driver for device binding (Rafael Wysocki)
 
  - Fix incorrect charging status when current is zero in the generic
    ACPI battery driver (Ata İlhan Köktürk)
 
  - Use LIST_HEAD() for initializing a stack-allocated list in the
    generic ACPI watchdog device driver (Can Peng)
 
  - Rework the ACPI idle driver initialization to register it directly
    from the common initialization code instead of doing that from a
    CPU hotplug "online" callback and clean it up (Huisong Li, Rafael
    Wysocki)
 
  - Fix a possible NULL pointer dereference in
    acpi_processor_errata_piix4() (Tuo Li)
 
  - Make read-only array non_mmio_desc[] static const (Colin Ian King)
 
  - Prevent the APEI GHES support code on ARM from accessing memory out
    of bounds or going past the ARM processor CPER record buffer (Mauro
    Carvalho Chehab)
 
  - Prevent cper_print_fw_err() from dumping the entire memory on systems
    with defective firmware (Mauro Carvalho Chehab)
 
  - Improve ghes_notify_nmi() status check to avoid unnecessary overhead
    in the NMI handler by carrying out all of the requisite preparations
    and the NMI registration time (Tony Luck)
 
  - Refactor the GHES driver by extracting common functionality into
    reusable helper functions to reduce code duplication and improve
    the ghes_notify_sea() status check in analogy with the previous
    ghes_notify_nmi() status check improvement (Shuai Xue)
 
  - Make ELOG and GHES log and trace consistently and support the CPER
    CXL protocol analogously (Fabio De Francesco)
 
  - Disable KASAN instrumentation in the APEI GHES driver when compile
    testing with clang < 18 (Nathan Chancellor)
 
  - Let ghes_edac be the preferred driver to load on  __ZX__ and _BYO_
    systems by extending the platform detection list in the APEI GHES
    driver (Tony W Wang-oc)
 
  - Clean up cppc_perf_caps and cppc_perf_ctrls structs and rename EPP
    constants for clarity in the ACPI CPPC library (Sumit Gupta)
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Merge tag 'acpi-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI updates from Rafael Wysocki:
 "This one is significantly larger than previous ACPI support pull
  requests because several significant updates have coincided in it.

  First, there is a routine ACPICA code update, to upstream version
  20251212, but this time it covers new ACPI 6.6 material that has not
  been covered yet. Among other things, it includes definitions of a few
  new ACPI tables and updates of some others, like the GICv5 MADT
  structures and ARM IORT IWB node definitions that are used for adding
  GICv5 ACPI probing on ARM (that technically is IRQ subsystem material,
  but it depends on the ACPICA changes, so it is included here). The
  latter alone adds a few hundred lines of new code.

  Second, there is an update of ACPI _OSC handling including a fix that
  prevents failures from occurring in some corner cases due to careless
  handling of _OSC error bits.

  On top of that, the "system resource" ACPI device objects with the
  PNP0C01 and PNP0C02 are now going to be handled by the ACPI core
  device enumeration code instead of handing them over to the legacy PNP
  system driver which causes device enumeration issues to occur. Some of
  those issues have been worked around in device drivers and elsewhere
  and those workarounds should not be necessary any more, so they are
  going away.

  Moreover, the time has come to convert all "core ACPI" device drivers
  that were still using struct acpi_driver objects for device binding
  into proper platform drivers that use struct platform_driver for this
  purpose. These updates are accompanied by some requisite core ACPI
  device enumeration code changes.

  Next, there are ACPI APEI updates, including changes to avoid excess
  overhead in the NMI handler and in SEA on the ARM side, changes to
  unify ACPI-based HW error tracing and logging, and changes to prevent
  APEI code from reaching out of its allocated memory.

  There are also some ACPI power management updates, mostly related to
  the ACPI cpuidle support in the processor driver, suspend-to-idle
  handling on systems with ACPI support and to ACPI PM of devices.

  In addition to the above, bugs are fixed and the code is cleaned up in
  assorted places all over.

  Specifics:

   - Update the ACPICA code in the kernel to upstream version 20251212
     which includes the following changes:
      * Add support for new ACPI table DTPR (Michal Camacho Romero)
      * Release objects with acpi_ut_delete_object_desc() (Zilin Guan)
      * Add UUIDs for Microsoft fan extensions and UUIDs associated with
        TPM 2.0 devices (Armin Wolf)
      * Fix NULL pointer dereference in acpi_ev_address_space_dispatch()
        (Alexey Simakov)
      * Add KEYP ACPI table definition (Dave Jiang)
      * Add support for the Microsoft display mux _OSI string (Armin
        Wolf)
      * Add definitions for the IOVT ACPI table (Xianglai Li)
      * Abort AML bytecode execution on AML_FATAL_OP (Armin Wolf)
      * Include all fields in subtable type1 for PPTT (Ben Horgan)
      * Add GICv5 MADT structures and Arm IORT IWB node definitions
        (Jose Marinho)
      * Update Parameter Block structure for RAS2 and add a new flag in
        Memory Affinity Structure for SRAT (Pawel Chmielewski)
      * Add _VDM (Voltage Domain) object (Pawel Chmielewski)

   - Add support for GICv5 ACPI probing on ARM which is based on the
     GICv5 MADT structures and ARM IORT IWB node definitions recently
     added to ACPICA (Lorenzo Pieralisi)

   - Rework ACPI PM notification setup for PCI root buses and modify the
     ACPI PM setup for devices to register wakeup source objects under
     physical (that is, PCI, platform, etc.) devices instead of doing
     that under their ACPI companions (Rafael Wysocki)

   - Adjust debug messages regarding postponed ACPI PM printed during
     system resume to be more accurate (Rafael Wysocki)

   - Remove dead code from lps0_device_attach() (Gergo Koteles)

   - Start to invoke Microsoft Function 9 (Turn On Display) of the Low-
     Power S0 Idle (LPS0) _DSM in the suspend-to-idle resume flow on
     systems with ACPI LPS0 support to address a functional issue on
     Lenovo Yoga Slim 7i Aura (15ILL9), where system fans and keyboard
     backlights fail to resume after suspend (Jakob Riemenschneider)

   - Add sysfs attribute cid for exposing _CID lists under ACPI device
     objects (Rafael Wysocki)

   - Replace sprintf() with sysfs_emit() in all of the core ACPI sysfs
     interface code (Sumeet Pawnikar)

   - Use acpi_get_local_u64_address() in the code implementing ACPI
     support for PCI to evaluate _ADR instead of evaluating that object
     directly (Andy Shevchenko)

   - Add JWIPC JVC9100 to irq1_level_low_skip_override[] to unbreak
     serial IRQs on that system (Ai Chao)

   - Fix handling of _OSC errors in acpi_run_osc() to avoid failures on
     systems where _OSC error bits are set even though the _OSC return
     buffer contains acknowledged feature bits (Rafael Wysocki)

   - Clean up and rearrange \_SB._OSC handling for general platform
     features and USB4 features to avoid code duplication and
     unnecessary memory management overhead (Rafael Wysocki)

   - Make the ACPI core device enumeration code handle PNP0C01 and
     PNP0C02 ("system resource") device objects directly instead of
     letting the legacy PNP system driver handle them to avoid device
     enumeration issues on systems where PNP0C02 is present in the _CID
     list under ACPI device objects with a _HID matching a proper device
     driver in Linux (Rafael Wysocki)

   - Drop workarounds for the known device enumeration issues related to
     _CID lists containing PNP0C02 (Rafael Wysocki)

   - Drop outdated comment regarding removed function in the ACPI-based
     device enumeration code (Julia Lawall)

   - Make PRP0001 device matching work as expected for ACPI device
     objects using it as a _HID for board development and similar
     purposes (Kartik Rajput)

   - Use async schedule function in acpi_scan_clear_dep_fn() to avoid
     races with user space initialization on some systems (Yicong Yang)

   - Add a piece of documentation explaining why binding drivers
     directly to ACPI device objects is not a good idea in general and
     why it is desirable to convert drivers doing so into proper
     platform drivers that use struct platform_driver for device binding
     (Rafael Wysocki)

   - Convert multiple "core ACPI" drivers, including the NFIT ACPI
     device driver, the generic ACPI button drivers, the generic ACPI
     thermal zone driver, the ACPI hardware event device (HED) driver,
     the ACPI EC driver, the ACPI SMBUS HC driver, the ACPI Smart
     Battery Subsystem (SBS) driver, and the ACPI backlight (video)
     driver to proper platform drivers that use struct platform_driver
     for device binding (Rafael Wysocki)

   - Use acpi_get_local_u64_address() in the ACPI backlight (video)
     driver to evaluate _ADR instead of evaluating that object directly
     (Andy Shevchenko)

   - Convert the generic ACPI battery driver to a proper platform driver
     using struct platform_driver for device binding (Rafael Wysocki)

   - Fix incorrect charging status when current is zero in the generic
     ACPI battery driver (Ata İlhan Köktürk)

   - Use LIST_HEAD() for initializing a stack-allocated list in the
     generic ACPI watchdog device driver (Can Peng)

   - Rework the ACPI idle driver initialization to register it directly
     from the common initialization code instead of doing that from a
     CPU hotplug "online" callback and clean it up (Huisong Li, Rafael
     Wysocki)

   - Fix a possible NULL pointer dereference in
     acpi_processor_errata_piix4() (Tuo Li)

   - Make read-only array non_mmio_desc[] static const (Colin Ian King)

   - Prevent the APEI GHES support code on ARM from accessing memory out
     of bounds or going past the ARM processor CPER record buffer (Mauro
     Carvalho Chehab)

   - Prevent cper_print_fw_err() from dumping the entire memory on
     systems with defective firmware (Mauro Carvalho Chehab)

   - Improve ghes_notify_nmi() status check to avoid unnecessary
     overhead in the NMI handler by carrying out all of the requisite
     preparations and the NMI registration time (Tony Luck)

   - Refactor the GHES driver by extracting common functionality into
     reusable helper functions to reduce code duplication and improve
     the ghes_notify_sea() status check in analogy with the previous
     ghes_notify_nmi() status check improvement (Shuai Xue)

   - Make ELOG and GHES log and trace consistently and support the CPER
     CXL protocol analogously (Fabio De Francesco)

   - Disable KASAN instrumentation in the APEI GHES driver when compile
     testing with clang < 18 (Nathan Chancellor)

   - Let ghes_edac be the preferred driver to load on __ZX__ and _BYO_
     systems by extending the platform detection list in the APEI GHES
     driver (Tony W Wang-oc)

   - Clean up cppc_perf_caps and cppc_perf_ctrls structs and rename EPP
     constants for clarity in the ACPI CPPC library (Sumit Gupta)"

* tag 'acpi-6.20-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (117 commits)
  ACPI: battery: fix incorrect charging status when current is zero
  ACPI: scan: Use async schedule function in acpi_scan_clear_dep_fn()
  ACPI: x86: s2idle: Invoke Microsoft _DSM Function 9 (Turn On Display)
  ACPI: APEI: GHES: Add ghes_edac support for __ZX__ and _BYO_ systems
  ACPI: APEI: GHES: Disable KASAN instrumentation when compile testing with clang < 18
  ACPI: sysfs: Replace sprintf() with sysfs_emit()
  ACPI: CPPC: Rename EPP constants for clarity
  ACPI: CPPC: Clean up cppc_perf_caps and cppc_perf_ctrls structs
  ACPI: processor: idle: Rework the handling of acpi_processor_ffh_lpi_probe()
  ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_dev() to void
  ACPI: processor: idle: Convert acpi_processor_setup_cpuidle_states() to void
  irqchip/gic-v5: Add ACPI IWB probing
  irqchip/gic-v5: Add ACPI ITS probing
  irqchip/gic-v5: Add ACPI IRS probing
  irqchip/gic-v5: Split IRS probing into OF and generic portions
  PCI/MSI: Make the pci_msi_map_rid_ctlr_node() interface firmware agnostic
  irqdomain: Add parent field to struct irqchip_fwid
  ACPI: PCI: simplify code with acpi_get_local_u64_address()
  ACPI: video: simplify code with acpi_get_local_u64_address()
  ACPI: PM: Adjust messages regarding postponed ACPI PM
  ...
 2026-02-09 18:42:47 -08:00
Linus Torvalds
4adc13ed7c for-7.0/block-stable-pages-20260206 
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Merge tag 'for-7.0/block-stable-pages-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull bounce buffer dio for stable pages from Jens Axboe:
 "This adds support for bounce buffering of dio for stable pages. This
  was all done by Christoph. In his words:

  This series tries to address the problem that under I/O pages can be
  modified during direct I/O, even when the device or file system
  require stable pages during I/O to calculate checksums, parity or data
  operations. It does so by adding block layer helpers to bounce buffer
  an iov_iter into a bio, then wires that up in iomap and ultimately
  XFS.

  The reason that the file system even needs to know about it, is
  because reads need a user context to copy the data back, and the
  infrastructure to defer ioends to a workqueue currently sits in XFS.
  I'm going to look into moving that into ioend and enabling it for
  other file systems. Additionally btrfs already has it's own
  infrastructure for this, and actually an urgent need to bounce buffer,
  so this should be useful there and could be wire up easily. In fact
  the idea comes from patches by Qu that did this in btrfs.

  This patch fixes all but one xfstests failures on T10 PI capable
  devices (generic/095 seems to have issues with a mix of mmap and
  splice still, I'm looking into that separately), and make qemu VMs
  running Windows, or Linux with swap enabled fine on an XFS file on a
  device using PI.

  Performance numbers on my (not exactly state of the art) NVMe PI test
  setup:

      Sequential reads using io_uring, QD=16.
      Bandwidth and CPU usage (usr/sys):

      | size |        zero copy         |          bounce          |
      +------+--------------------------+--------------------------+
      |   4k | 1316MiB/s (12.65/55.40%) | 1081MiB/s (11.76/49.78%) |
      |  64K | 3370MiB/s ( 5.46/18.20%) | 3365MiB/s ( 4.47/15.68%) |
      |   1M | 3401MiB/s ( 0.76/23.05%) | 3400MiB/s ( 0.80/09.06%) |
      +------+--------------------------+--------------------------+

      Sequential writes using io_uring, QD=16.
      Bandwidth and CPU usage (usr/sys):

      | size |        zero copy         |          bounce          |
      +------+--------------------------+--------------------------+
      |   4k |  882MiB/s (11.83/33.88%) |  750MiB/s (10.53/34.08%) |
      |  64K | 2009MiB/s ( 7.33/15.80%) | 2007MiB/s ( 7.47/24.71%) |
      |   1M | 1992MiB/s ( 7.26/ 9.13%) | 1992MiB/s ( 9.21/19.11%) |
      +------+--------------------------+--------------------------+

  Note that the 64k read numbers look really odd to me for the baseline
  zero copy case, but are reproducible over many repeated runs.

  The bounce read numbers should further improve when moving the PI
  validation to the file system and removing the double context switch,
  which I have patches for that will sent out soon"

* tag 'for-7.0/block-stable-pages-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  xfs: use bounce buffering direct I/O when the device requires stable pages
  iomap: add a flag to bounce buffer direct I/O
  iomap: support ioends for direct reads
  iomap: rename IOMAP_DIO_DIRTY to IOMAP_DIO_USER_BACKED
  iomap: free the bio before completing the dio
  iomap: share code between iomap_dio_bio_end_io and iomap_finish_ioend_direct
  iomap: split out the per-bio logic from iomap_dio_bio_iter
  iomap: simplify iomap_dio_bio_iter
  iomap: fix submission side handling of completion side errors
  block: add helpers to bounce buffer an iov_iter into bios
  block: remove bio_release_page
  iov_iter: extract a iov_iter_extract_bvecs helper from bio code
  block: open code bio_add_page and fix handling of mismatching P2P ranges
  block: refactor get_contig_folio_len
  block: add a BIO_MAX_SIZE constant and use it
 2026-02-09 18:14:52 -08:00
Linus Torvalds
0c00ed308d for-7.0/block-20260206 
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Merge tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull block updates from Jens Axboe:

 - Support for batch request processing for ublk, improving the
   efficiency of the kernel/ublk server communication. This can yield
   nice 7-12% performance improvements

 - Support for integrity data for ublk

 - Various other ublk improvements and additions, including a ton of
   selftests additions and updated

 - Move the handling of blk-crypto software fallback from below the
   block layer to above it. This reduces the complexity of dealing with
   bio splitting

 - Series fixing a number of potential deadlocks in blk-mq related to
   the queue usage counter and writeback throttling and rq-qos debugfs
   handling

 - Add an async_depth queue attribute, to resolve a performance
   regression that's been around for a qhilw related to the scheduler
   depth handling

 - Only use task_work for IOPOLL completions on NVMe, if it is necessary
   to do so. An earlier fix for an issue resulted in all these
   completions being punted to task_work, to guarantee that completions
   were only run for a given io_uring ring when it was local to that
   ring. With the new changes, we can detect if it's necessary to use
   task_work or not, and avoid it if possible.

 - rnbd fixes:
      - Fix refcount underflow in device unmap path
      - Handle PREFLUSH and NOUNMAP flags properly in protocol
      - Fix server-side bi_size for special IOs
      - Zero response buffer before use
      - Fix trace format for flags
      - Add .release to rnbd_dev_ktype

 - MD pull requests via Yu Kuai
      - Fix raid5_run() to return error when log_init() fails
      - Fix IO hang with degraded array with llbitmap
      - Fix percpu_ref not resurrected on suspend timeout in llbitmap
      - Fix GPF in write_page caused by resize race
      - Fix NULL pointer dereference in process_metadata_update
      - Fix hang when stopping arrays with metadata through dm-raid
      - Fix any_working flag handling in raid10_sync_request
      - Refactor sync/recovery code path, improve error handling for
        badblocks, and remove unused recovery_disabled field
      - Consolidate mddev boolean fields into mddev_flags
      - Use mempool to allocate stripe_request_ctx and make sure
        max_sectors is not less than io_opt in raid5
      - Fix return value of mddev_trylock
      - Fix memory leak in raid1_run()
      - Add Li Nan as mdraid reviewer

 - Move phys_vec definitions to the kernel types, mostly in preparation
   for some VFIO and RDMA changes

 - Improve the speed for secure erase for some devices

 - Various little rust updates

 - Various other minor fixes, improvements, and cleanups

* tag 'for-7.0/block-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (162 commits)
  blk-mq: ABI/sysfs-block: fix docs build warnings
  selftests: ublk: organize test directories by test ID
  block: decouple secure erase size limit from discard size limit
  block: remove redundant kill_bdev() call in set_blocksize()
  blk-mq: add documentation for new queue attribute async_dpeth
  block, bfq: convert to use request_queue->async_depth
  mq-deadline: covert to use request_queue->async_depth
  kyber: covert to use request_queue->async_depth
  blk-mq: add a new queue sysfs attribute async_depth
  blk-mq: factor out a helper blk_mq_limit_depth()
  blk-mq-sched: unify elevators checking for async requests
  block: convert nr_requests to unsigned int
  block: don't use strcpy to copy blockdev name
  blk-mq-debugfs: warn about possible deadlock
  blk-mq-debugfs: add missing debugfs_mutex in blk_mq_debugfs_register_hctxs()
  blk-mq-debugfs: remove blk_mq_debugfs_unregister_rqos()
  blk-mq-debugfs: make blk_mq_debugfs_register_rqos() static
  blk-rq-qos: fix possible debugfs_mutex deadlock
  blk-mq-debugfs: factor out a helper to register debugfs for all rq_qos
  blk-wbt: fix possible deadlock to nest pcpu_alloc_mutex under q_usage_counter
  ...
 2026-02-09 17:57:21 -08:00
Linus Torvalds
591beb0e3a io_uring-bpf-restrictions.4-20260206 
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Merge tag 'io_uring-bpf-restrictions.4-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring bpf filters from Jens Axboe:
 "This adds support for both cBPF filters for io_uring, as well as task
  inherited restrictions and filters.

  seccomp and io_uring don't play along nicely, as most of the
  interesting data to filter on resides somewhat out-of-band, in the
  submission queue ring.

  As a result, things like containers and systemd that apply seccomp
  filters, can't filter io_uring operations.

  That leaves them with just one choice if filtering is critical -
  filter the actual io_uring_setup(2) system call to simply disallow
  io_uring. That's rather unfortunate, and has limited us because of it.

  io_uring already has some filtering support. It requires the ring to
  be setup in a disabled state, and then a filter set can be applied.
  This filter set is completely bi-modal - an opcode is either enabled
  or it's not. Once a filter set is registered, the ring can be enabled.
  This is very restrictive, and it's not useful at all to systemd or
  containers which really want both broader and more specific control.

  This first adds support for cBPF filters for opcodes, which enables
  tighter control over what exactly a specific opcode may do. As
  examples, specific support is added for IORING_OP_OPENAT/OPENAT2,
  allowing filtering on resolve flags. And another example is added for
  IORING_OP_SOCKET, allowing filtering on domain/type/protocol. These
  are both common use cases. cBPF was chosen rather than eBPF, because
  the latter is often restricted in containers as well.

  These filters are run post the init phase of the request, which allows
  filters to even dip into data that is being passed in struct in user
  memory, as the init side of requests make that data stable by bringing
  it into the kernel. This allows filtering without needing to copy this
  data twice, or have filters etc know about the exact layout of the
  user data. The filters get the already copied and sanitized data
  passed.

  On top of that support is added for per-task filters, meaning that any
  ring created with a task that has a per-task filter will get those
  filters applied when it's created. These filters are inherited across
  fork as well. Once a filter has been registered, any further added
  filters may only further restrict what operations are permitted.

  Filters cannot change the return value of an operation, they can only
  permit or deny it based on the contents"

* tag 'io_uring-bpf-restrictions.4-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux:
  io_uring: allow registration of per-task restrictions
  io_uring: add task fork hook
  io_uring/bpf_filter: add ref counts to struct io_bpf_filter
  io_uring/bpf_filter: cache lookup table in ctx->bpf_filters
  io_uring/bpf_filter: allow filtering on contents of struct open_how
  io_uring/net: allow filtering on IORING_OP_SOCKET data
  io_uring: add support for BPF filtering for opcode restrictions
 2026-02-09 17:31:17 -08:00
Linus Torvalds
f5d4feed17 for-7.0/io_uring-20260206 
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Merge tag 'for-7.0/io_uring-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux

Pull io_uring updates from Jens Axboe:

 - Clean up the IORING_SETUP_R_DISABLED and submitter task checking,
   mostly just in preparation for relaxing the locking for SINGLE_ISSUER
   in the future.

 - Improve IOPOLL by using a doubly linked list to manage completions.

   Previously it was singly listed, which meant that to complete request
   N in the chain 0..N-1 had to have completed first. With a doubly
   linked list we can complete whatever request completes in that order,
   rather than need to wait for a consecutive range to be available.
   This reduces latencies.

 - Improve the restriction setup and checking. Mostly in preparation for
   adding further features on top of that. Coming in a separate pull
   request.

 - Split out task_work and wait handling into separate files. These are
   mostly nicely abstracted already, but still remained in the
   io_uring.c file which is on the larger side.

 - Use GFP_KERNEL_ACCOUNT in a few more spots, where appropriate.

 - Ensure even the idle io-wq worker exits if a task no longer has any
   rings open.

 - Add support for a non-circular submission queue.

   By default, the SQ ring keeps moving around, even if only a few
   entries are used for each submission. This can be wasteful in terms
   of cachelines.

   If IORING_SETUP_SQ_REWIND is set for the ring when created, each
   submission will start at offset 0 instead of where we last left off
   doing submissions.

 - Various little cleanups

* tag 'for-7.0/io_uring-20260206' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (30 commits)
  io_uring/kbuf: fix memory leak if io_buffer_add_list fails
  io_uring: Add SPDX id lines to remaining source files
  io_uring: allow io-wq workers to exit when unused
  io_uring/io-wq: add exit-on-idle state
  io_uring/net: don't continue send bundle if poll was required for retry
  io_uring/rsrc: use GFP_KERNEL_ACCOUNT consistently
  io_uring/futex: use GFP_KERNEL_ACCOUNT for futex data allocation
  io_uring/io-wq: handle !sysctl_hung_task_timeout_secs
  io_uring: fix bad indentation for setup flags if statement
  io_uring/rsrc: take unsigned index in io_rsrc_node_lookup()
  io_uring: introduce non-circular SQ
  io_uring: split out CQ waiting code into wait.c
  io_uring: split out task work code into tw.c
  io_uring/io-wq: don't trigger hung task for syzbot craziness
  io_uring: add IO_URING_EXIT_WAIT_MAX definition
  io_uring/sync: validate passed in offset
  io_uring/eventfd: remove unused ctx->evfd_last_cq_tail member
  io_uring/timeout: annotate data race in io_flush_timeouts()
  io_uring/uring_cmd: explicitly disallow cancelations for IOPOLL
  io_uring: fix IOPOLL with passthrough I/O
  ...
 2026-02-09 17:22:00 -08:00
Linus Torvalds
26c9342bb7 struct filename series 
[mostly] sanitize struct filename hanling
 
 Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
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Merge tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs 'struct filename' updates from Al Viro:
 "[Mostly] sanitize struct filename handling"

* tag 'pull-filename' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs: (68 commits)
  sysfs(2): fs_index() argument is _not_ a pathname
  alpha: switch osf_mount() to strndup_user()
  ksmbd: use CLASS(filename_kernel)
  mqueue: switch to CLASS(filename)
  user_statfs(): switch to CLASS(filename)
  statx: switch to CLASS(filename_maybe_null)
  quotactl_block(): switch to CLASS(filename)
  chroot(2): switch to CLASS(filename)
  move_mount(2): switch to CLASS(filename_maybe_null)
  namei.c: switch user pathname imports to CLASS(filename{,_flags})
  namei.c: convert getname_kernel() callers to CLASS(filename_kernel)
  do_f{chmod,chown,access}at(): use CLASS(filename_uflags)
  do_readlinkat(): switch to CLASS(filename_flags)
  do_sys_truncate(): switch to CLASS(filename)
  do_utimes_path(): switch to CLASS(filename_uflags)
  chdir(2): unspaghettify a bit...
  do_fchownat(): unspaghettify a bit...
  fspick(2): use CLASS(filename_flags)
  name_to_handle_at(): use CLASS(filename_uflags)
  vfs_open_tree(): use CLASS(filename_uflags)
  ...
 2026-02-09 16:58:28 -08:00
Steven Rostedt
b4bade506b tracing: Move d_max_latency out of CONFIG_FSNOTIFY protection 
The tracing_max_latency shouldn't be limited if CONFIG_FSNOTIFY is defined
or not and it was moved out of that protection to be always available with
CONFIG_TRACER_MAX_TRACE. All was moved out except the dentry descriptor
for it (d_max_latency) and it failed to build on some configs.

Move that out of the CONFIG_FSNOTIFY protection too.

Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Link: https://patch.msgid.link/20260209194631.788bfc85@fedora
Fixes: ba73713da5 ("tracing: Clean up use of trace_create_maxlat_file()")
Reported-by: kernel test robot <lkp@intel.com>
Closes: https://lore.kernel.org/oe-kbuild-all/202602092133.fTdojd95-lkp@intel.com/
Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>
 2026-02-09 19:52:37 -05:00
Linus Torvalds
8a5203c630 74 client changesets 
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Merge tag 'v7.0-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client updates from Steve French:

 - multichannel improvements, including making add channel async at
   mount time

 - fix potential double free in open path

 - retry fixes

 - locking improvements

 - fix potential directory lease races

 - cleanup patches for client headers

 - patches to better split out SMB1 code

 - minor cleanup of structs for gcc 14 warnings

 - error handling improvements

* tag 'v7.0-rc-part1-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6: (74 commits)
  cifs: Fix the copyright banner on smb1maperror.c
  smb: common: add header guards to fs/smb/common/smb2status.h
  smb: client: Avoid a dozen -Wflex-array-member-not-at-end warnings
  smb/client: remove useless comment in mapping_table_ERRSRV
  smb/client: remove some literal NT error codes from ntstatus_to_dos_map
  smb/client: add NT_STATUS_VOLUME_NOT_UPGRADED
  smb/client: add NT_STATUS_NO_USER_KEYS
  smb/client: add NT_STATUS_WRONG_EFS
  smb/client: add NT_STATUS_NO_EFS
  smb/client: add NT_STATUS_NO_RECOVERY_POLICY
  smb/client: add NT_STATUS_RANGE_NOT_FOUND
  smb/client: add NT_STATUS_DECRYPTION_FAILED
  smb/client: add NT_STATUS_ENCRYPTION_FAILED
  smb/client: add NT_STATUS_DIRECTORY_IS_A_REPARSE_POINT
  smb/client: add NT_STATUS_VOLUME_DISMOUNTED
  smb/client: add NT_STATUS_BIOS_FAILED_TO_CONNECT_INTERRUPT
  smb/client: add NT_STATUS_VARIABLE_NOT_FOUND
  smb/client: rename ERRinvlevel to ERRunknownlevel
  smb/client: add NT_STATUS_OS2_INVALID_LEVEL
  smb/client: map NT_STATUS_INVALID_INFO_CLASS to ERRbadpipe
  ...
 2026-02-09 16:46:51 -08:00
Linus Torvalds
af23fd93fc dlm for 7.0 
This set includes several minor code cleanups, and one notable fix
 for recovery of in-progress lock conversions which would lead to a
 the convert operation never completing.
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Merge tag 'dlm-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm

Pull dlm updates from David Teigland:
 "This includes several minor code cleanups, and one notable fix for
  recovery of in-progress lock conversions which would lead to a the
  convert operation never completing"

* tag 'dlm-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/teigland/linux-dlm:
  dlm: Avoid -Wflex-array-member-not-at-end warning
  fs/dlm/dir: remove unuse variable count_match
  dlm: Constify struct configfs_item_operations and configfs_group_operations
  fs/dlm: use list_add_tail() instead of open-coding list insertion
  dlm: validate length in dlm_search_rsb_tree
  dlm: fix recovery pending middle conversion
 2026-02-09 16:40:43 -08:00
Linus Torvalds
7141433fbe gfs2 changes 
- Prevent rename() from failing with -ESTALE when there are locking
   conflicts and retry the operation instead.
 
 - Don't fail when fiemap triggers a page fault (xfstest generic/742).
 
 - Fix another locking request cancellation bug.
 
 - Minor other fixes and cleanups.
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Merge tag 'gfs2-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2

Pull gfs2 updates from Andreas Gruenbacher:

 - Prevent rename() from failing with -ESTALE when there are locking
   conflicts and retry the operation instead

 - Don't fail when fiemap triggers a page fault (xfstest generic/742)

 - Fix another locking request cancellation bug

 - Minor other fixes and cleanups

* tag 'gfs2-for-7.0' of git://git.kernel.org/pub/scm/linux/kernel/git/gfs2/linux-gfs2:
  gfs2: fiemap page fault fix
  gfs2: fix memory leaks in gfs2_fill_super error path
  gfs2: Fix use-after-free in iomap inline data write path
  gfs2: Fix slab-use-after-free in qd_put
  gfs2: Introduce glock_{type,number,sbd} helpers
  gfs2: gfs2_glock_hold cleanup
  gfs: Use fixed GL_GLOCK_MIN_HOLD time
  gfs2: Fix gfs2_log_get_bio argument type
  gfs2: gfs2_chain_bio start sector fix
  gfs2: Initialize bio->bi_opf early
  gfs2: Rename gfs2_log_submit_{bio -> write}
  gfs2: Do not cancel internal demote requests
  gfs2: run_queue cleanup
  gfs2: Retries missing in gfs2_{rename,exchange}
  gfs2: glock cancelation flag fix
 2026-02-09 16:29:57 -08:00
Linus Torvalds
56feb532bb xfs: new patches for Linux 7.0 
Signed-off-by: Carlos Maiolino <cem@kernel.org>
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Merge tag 'xfs-merge-7.0' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs updates from Carlos Maiolino:
 "This contains several improvements to zoned device support,
  performance improvements for the parent pointers, and a new health
  monitoring feature. There are some improvements in the journaling code
  too but no behavior change expected.

  Last but not least, some code refactoring and bug fixes are also
  included in this series"

* tag 'xfs-merge-7.0' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux: (67 commits)
  xfs: add sysfs stats for zoned GC
  xfs: give the defer_relog stat a xs_ prefix
  xfs: add zone reset error injection
  xfs: refactor zone reset handling
  xfs: don't mark all discard issued by zoned GC as sync
  xfs: allow setting errortags at mount time
  xfs: use WRITE_ONCE/READ_ONCE for m_errortag
  xfs: move the guts of XFS_ERRORTAG_DELAY out of line
  xfs: don't validate error tags in the I/O path
  xfs: allocate m_errortag early
  xfs: fix the errno sign for the xfs_errortag_{add,clearall} stubs
  xfs: validate log record version against superblock log version
  xfs: fix spacing style issues in xfs_alloc.c
  xfs: remove xfs_zone_gc_space_available
  xfs: use a seprate member to track space availabe in the GC scatch buffer
  xfs: check for deleted cursors when revalidating two btrees
  xfs: fix UAF in xchk_btree_check_block_owner
  xfs: check return value of xchk_scrub_create_subord
  xfs: only call xf{array,blob}_destroy if we have a valid pointer
  xfs: get rid of the xchk_xfile_*_descr calls
  ...
 2026-02-09 16:11:27 -08:00
Linus Torvalds
3893854000 Changes since last update: 
- Support inode page cache sharing among filesystems
 
  - Formally separate optional encoded (aka compressed) inode layouts
    (and the implementations) from the EROFS core on-disk aligned plain
    format for future zero-trust security usage
 
  - Improve performance by caching the fact that an inode does not have
    a POSIX ACL
 
  - Improve LZ4 decompression error reporting
 
  - Enable LZMA by default and promote DEFLATE and Zstandard algorithms
    out of EXPERIMENTAL status
 
  - Switch to inode_set_cached_link() to cache symlink lengths
 
  - random bugfixes and minor cleanups
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Merge tag 'erofs-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs

Pull erofs updates from Gao Xiang:
 "In this cycle, inode page cache sharing among filesystems on the same
  machine is now supported, which is particularly useful for
  high-density hosts running tens of thousands of containers.

  In addition, we fully isolate the EROFS core on-disk format from other
  optional encoded layouts since the core on-disk part is designed to be
  simple, effective, and secure. Users can use the core format to build
  unique golden immutable images and import their filesystem trees
  directly from raw block devices via DMA, page-mapped DAX devices,
  and/or file-backed mounts without having to worry about unnecessary
  intrinsic consistency issues found in other generic filesystems by
  design. However, the full vision is still working in progress and will
  spend more time to achieve final goals.

  There are other improvements and bug fixes as usual, as listed below:

   - Support inode page cache sharing among filesystems

   - Formally separate optional encoded (aka compressed) inode layouts
     (and the implementations) from the EROFS core on-disk aligned plain
     format for future zero-trust security usage

   - Improve performance by caching the fact that an inode does not have
     a POSIX ACL

   - Improve LZ4 decompression error reporting

   - Enable LZMA by default and promote DEFLATE and Zstandard algorithms
     out of EXPERIMENTAL status

   - Switch to inode_set_cached_link() to cache symlink lengths

   - random bugfixes and minor cleanups"

* tag 'erofs-for-7.0-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/xiang/erofs: (31 commits)
  erofs: fix UAF issue for file-backed mounts w/ directio option
  erofs: update compression algorithm status
  erofs: fix inline data read failure for ztailpacking pclusters
  erofs: avoid some unnecessary #ifdefs
  erofs: handle end of filesystem properly for file-backed mounts
  erofs: separate plain and compressed filesystems formally
  erofs: use inode_set_cached_link()
  erofs: mark inodes without acls in erofs_read_inode()
  erofs: implement .fadvise for page cache share
  erofs: support compressed inodes for page cache share
  erofs: support unencoded inodes for page cache share
  erofs: pass inode to trace_erofs_read_folio
  erofs: introduce the page cache share feature
  erofs: using domain_id in the safer way
  erofs: add erofs_inode_set_aops helper to set the aops
  erofs: support user-defined fingerprint name
  erofs: decouple `struct erofs_anon_fs_type`
  fs: Export alloc_empty_backing_file
  erofs: tidy up erofs_init_inode_xattrs()
  erofs: add missing documentation about `directio` mount option
  ...
 2026-02-09 16:08:40 -08:00
Linus Torvalds
4fb7d86fbe hfs/hfsplus updates for v7.0 
- hfsplus: avoid double unload_nls() on mount failure
 - hfsplus: fix warning issue in inode.c
 - hfsplus: fix generic/062 xfstests failure
 - hfsplus: fix generic/037 xfstests failure
 - hfsplus: pretend special inodes as regular files
 - hfsplus: return error when node already exists in hfs_bnode_create
 - hfs: Replace BUG_ON with error handling for CNID count checks
 - hfsplus: fix generic/020 xfstests failure
 - hfsplus: fix volume corruption issue for generic/498
 - hfsplus: fix volume corruption issue for generic/480
 - hfsplus: ensure sb->s_fs_info is always cleaned up
 - hfs: ensure sb->s_fs_info is always cleaned up
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Merge tag 'hfs-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs

Pull hfs/hfsplus updates from Viacheslav Dubeyko:
 "This pull request contains several fixes of syzbot reported issues and
  HFS+ fixes of xfstests failures.

   - fix an issue reported by syzbot triggering BUG_ON() in the case of
     corrupted superblock, replacing the BUG_ON()s with proper error
     handling (Jori Koolstra)

   - fix memory leaks in the mount logic of HFS/HFS+ file systems. When
     HFS/HFS+ were converted to the new mount api a bug was introduced
     by changing the allocation pattern of sb->s_fs_info (Mehdi Ben Hadj
     Khelifa)

   - fix hfs_bnode_create() by returning ERR_PTR(-EEXIST) instead of
     the node pointer when it's already hashed.  This avoids a double
     unload_nls() on mount failure (suggested by Shardul Bankar)

   - set inode's mode as regular file for system inodes (Tetsuo Handa)

  The rest fix failures in generic/020, generic/037, generic/062,
  generic/480, and generic/498 xfstests for the case of HFS+ file
  system. Currently, only 30 xfstests' test-cases experience failures
  for HFS+ file system (initially, it was around 100 failed xfstests)"

* tag 'hfs-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/hfs:
  hfsplus: avoid double unload_nls() on mount failure
  hfsplus: fix warning issue in inode.c
  hfsplus: fix generic/062 xfstests failure
  hfsplus: fix generic/037 xfstests failure
  hfsplus: pretend special inodes as regular files
  hfsplus: return error when node already exists in hfs_bnode_create
  hfs: Replace BUG_ON with error handling for CNID count checks
  hfsplus: fix generic/020 xfstests failure
  hfsplus: fix volume corruption issue for generic/498
  hfsplus: fix volume corruption issue for generic/480
  hfsplus: ensure sb->s_fs_info is always cleaned up
  hfs: ensure sb->s_fs_info is always cleaned up
 2026-02-09 16:00:21 -08:00
Linus Torvalds
d10a88ce16 nilfs2 updates for v7.0 
- nilfs2: fix missing struct keywords in nilfs2_api.h kernel-doc
 - nilfs2: convert nilfs_super_block to kernel-doc
 - nilfs2: Fix potential block overflow that cause system hang
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Merge tag 'nilfs2-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/nilfs2

Pull nilfs2 updates from Viacheslav Dubeyko:

 - Fix potential block overflow that cause system hang

   When executing the FITRIM command, an underflow can occur in the
   calculation of nblocks. This ultimately leads to the block layer
   function __blkdev_issue_discard() taking an excessively long time
   to process the bio chain, and the ns_segctor_sem lock remains held
   for a long period.

   This prevents other tasks from acquiring the ns_segctor_sem lock,
   resulting in a hang reported by syzbot (Edward Adam Davis)

 - Fix missing struct keywords in nilfs2_api.h kernel-doc (Ryusuke
   Konishi)

 - Convert nilfs_super_block to kernel-doc

   Eliminate 40+ kernel-doc warnings in nilfs2_ondisk.h by converting
   all of the struct member comments to kernel-doc comments (Randy
   Dunlap)

* tag 'nilfs2-v7.0-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/vdubeyko/nilfs2:
  nilfs2: fix missing struct keywords in nilfs2_api.h kernel-doc
  nilfs2: convert nilfs_super_block to kernel-doc
  nilfs2: Fix potential block overflow that cause system hang
 2026-02-09 15:55:41 -08:00
Namjae Jeon
31b9028c77 ksmbd: convert tree_conns_lock to rw_semaphore 
Converts tree_conns_lock to an rw_semaphore to allow sleeping while
the lock is held. Additionally, it simplifies the locking logic in
ksmbd_tree_conn_session_logoff() and introduces
__ksmbd_tree_conn_disconnect() to avoid redundant locking.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2026-02-09 17:48:53 -06:00
Namjae Jeon
0080608706 ksmbd: fix missing chann_lock while iterating session channel list 
Add chann_lock while iterating ksmbd_chann_list in show_proc_session() and
show_proc_sessions(). This will prevents a race condition with concurrent
channel list modifications.

Signed-off-by: Namjae Jeon <linkinjeon@kernel.org>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2026-02-09 17:48:51 -06:00
Linus Torvalds
8912c2fd58 for-6.20-tag 
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Merge tag 'for-6.20-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux

Pull btrfs updates from David Sterba:
 "User visible changes, feature updates:

   - when using block size > page size, enable direct IO

   - fallback to buffered IO if the data profile has duplication,
     workaround to avoid checksum mismatches on block group profiles
     with redundancy, real direct IO is possible on single or RAID0

   - redo export of zoned statistics, moved from sysfs to
     /proc/pid/mountstats due to size limitations of the former

  Experimental features:

   - remove offload checksum tunable, intended to find best way to do it
     but since we've switched to offload to thread for everything we
     don't need it anymore

   - initial support for remap-tree feature, a translation layer of
     logical block addresses that allow changes without moving/rewriting
     blocks to do eg. relocation, or other changes that require COW

  Notable fixes:

   - automatic removal of accidentally leftover chunks when
     free-space-tree is enabled since mkfs.btrfs v6.16.1

   - zoned mode:
      - do not try to append to conventional zones when RAID is mixing
        zoned and conventional drives
      - fixup write pointers when mixing zoned and conventional on
        DUP/RAID* profiles

   - when using squota, relax deletion rules for qgroups with 0 members
     to allow easier recovery from accounting bugs, also add more checks
     to detect bad accounting

   - fix periodic reclaim scanning, properly check boundary conditions
     not to trigger it unexpectedly or miss the time to run it

   - trim:
      - continue after first error
      - change reporting to the first detected error
      - add more cancellation points
      - reduce contention of big device lock that can block other
        operations when there's lots of trimmed space

   - when chunk allocation is forced (needs experimental build) fix
     transaction abort when unexpected space layout is detected

  Core:

   - switch to crypto library API for checksumming, removed module
     dependencies, pointer indirections, etc.

   - error handling improvements

   - adjust how and where transaction commit or abort are done and are
     maybe not necessary

   - minor compression optimization to skip single block ranges

   - improve how compression folios are handled

   - new and updated selftests

   - cleanups, refactoring:
      - auto-freeing and other automatic variable cleanup conversion
      - structure size optimizations
      - condition annotations"

* tag 'for-6.20-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/kdave/linux: (137 commits)
  btrfs: get rid of compressed_bio::compressed_folios[]
  btrfs: get rid of compressed_folios[] usage for encoded writes
  btrfs: get rid of compressed_folios[] usage for compressed read
  btrfs: remove the old btrfs_compress_folios() infrastructure
  btrfs: switch to btrfs_compress_bio() interface for compressed writes
  btrfs: introduce btrfs_compress_bio() helper
  btrfs: zlib: introduce zlib_compress_bio() helper
  btrfs: zstd: introduce zstd_compress_bio() helper
  btrfs: lzo: introduce lzo_compress_bio() helper
  btrfs: zoned: factor out the zone loading part into a testable function
  btrfs: add cleanup function for btrfs_free_chunk_map
  btrfs: tests: add cleanup functions for test specific functions
  btrfs: raid56: fix memory leak of btrfs_raid_bio::stripe_uptodate_bitmap
  btrfs: tests: add unit tests for pending extent walking functions
  btrfs: fix EEXIST abort due to non-consecutive gaps in chunk allocation
  btrfs: fix transaction commit blocking during trim of unallocated space
  btrfs: handle user interrupt properly in btrfs_trim_fs()
  btrfs: preserve first error in btrfs_trim_fs()
  btrfs: continue trimming remaining devices on failure
  btrfs: do not BUG_ON() in btrfs_remove_block_group()
  ...
 2026-02-09 15:45:21 -08:00