Commit Graph

4100 Commits

Author SHA1 Message Date
Doehyun Baek
914a458277 Docs/{admin-guide,mm}/damon: fix DAMON documentation details
Fix minor DAMON documentation issues.  Correct the sysfs scheme file name
apply_interval_us, the DAMON_STAT module count, a malformed reference, a
misplaced label indentation, and a few typos.

Link: https://lore.kernel.org/20260629145538.134832-4-sj@kernel.org
Signed-off-by: Doehyun Baek <doehyunbaek@gmail.com>
Signed-off-by: SJ Park <sj@kernel.org>
Reviewed-by: SJ Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Liam R. Howlett" <liam@infradead.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Akinobu Mita <akinobu.mita@gmail.com>
Cc: Asier Gutierrez <gutierrez.asier@huawei-partners.com>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: Philippe Laferriere <plafer@proton.me>
Cc: Sailesh Nandanavanam <saileshnandanavanam@gmail.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-07-30 19:40:22 -07:00
shaikh.kamal
40221c9d1d docs: device-mapper: dm-inlinecrypt: fix 'bellow' spelling
Fix spelling error reported by codespell: bellow -> below.
No functional change.

Signed-off-by: shaikh.kamal <shaikhkamal2012@gmail.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
2026-07-28 11:06:50 +02:00
K Prateek Nayak
d3a019bd08 Documentation/amd-pstate: Update dynamic_epp documentation with new behavior
Update the admin-guide for dynamic_epp describing the latest integration
into energy_performance_preference selections.

Signed-off-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://lore.kernel.org/r/20260727072056.1248-7-kprateek.nayak@amd.com
Signed-off-by: Mario Limonciello <superm1@kernel.org>
2026-07-27 19:46:51 -05:00
Greg Kroah-Hartman
5d5fd841c3 Merge 7.2-rc5 into usb-next
We need the USB fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-27 08:40:53 +02:00
Jiri Pirko
c4ef67e5aa RDMA/cgroup: Disambiguate devices across net namespaces
RDMA device names are unique only within a network namespace, but an
RDMA cgroup can account resources for devices from multiple namespaces.
Duplicate names therefore make cgroup output ambiguous and can cause
limit writes to select the wrong device.

Use the system-wide RDMA device index to distinguish duplicate names
while preserving the existing UAPI for unique names. Reject ambiguous
name-only writes with -ENOTUNIQ and expose a complete device view to
administrators.

Signed-off-by: Jiri Pirko <jiri@nvidia.com>
Link: https://patch.msgid.link/20260716132316.1495242-9-jiri@resnulli.us
Signed-off-by: Leon Romanovsky <leon@kernel.org>
2026-07-26 03:11:00 -04:00
Tao Cui
3864c95587 docs: cgroup-v2: mark memory.pressure and io.pressure as read-write
The cgroup-v2 documentation describes memory.pressure and io.pressure as
"read-only nested-keyed file", but both files accept trigger writes
(cgroup_memory_pressure_write / cgroup_io_pressure_write) and are therefore
read-write. cpu.pressure and irq.pressure are already documented as
read-write, so this also resolves an internal inconsistency.

Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-23 23:16:06 -10:00
Tzung-Bi Shih
dca82e209e PM: sleep: Allow disabling DPM watchdog by default
Introduce the "dpm_watchdog_enabled" module parameter to allow the DPM
watchdog to be enabled or disabled at boot time and runtime.

Additionally, introduce the CONFIG_DPM_WATCHDOG_ENABLED Kconfig option
to set the default value of the module parameter at compile time.

The primary motivation for this configurability resolves around Android
GKI (Generic Kernel Image).  We want to enable CONFIG_DPM_WATCHDOG in
the GKI so the feature is available.  However, because the GKI is shared
across many different devices, we don't want to inadvertently affect
devices that are unaware of this feature.  This provides a way to
compile it in, but keep it disabled by default for those devices via the
kernel command line or module parameters.

To maintain backward compatibility, CONFIG_DPM_WATCHDOG_ENABLED relies
on `default y`.  Previously, the DPM watchdog was always active if
CONFIG_DPM_WATCHDOG was set.  Defaulting this new option to 'y' ensures
that the behavior remains unchanged for existing users and defconfigs
when they upgrade.

Signed-off-by: Tzung-Bi Shih <tzungbi@kernel.org>
Link: https://patch.msgid.link/20260720030821.2780257-3-tzungbi@kernel.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-07-23 15:46:34 +02:00
Rafael J. Wysocki
7f464fb229 amd-pstate content for 7.3 (07/22/26)
* Avoid running unit tests without amd-pstate
 * Fixes for EPP on shared memory systems
 * Fixes for dynamic EPP callbacks
 * Avoid loading on guests
 * Allow lowest nonlinear == minimum freq
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Merge tag 'amd-pstate-v7.3-2026-07-22' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux

Merge amd-pstate content for 7.3 (07/22/26) from Mario Limonciello:

"* Avoid running unit tests without amd-pstate
 * Fixes for EPP on shared memory systems
 * Fixes for dynamic EPP callbacks
 * Avoid loading on guests
 * Allow lowest nonlinear == minimum freq"

* tag 'amd-pstate-v7.3-2026-07-22' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux: (923 commits)
  cpufreq/amd-pstate: handle missing policy in dynamic EPP callbacks
  cpufreq/amd-pstate: Cache the firmware programmed EPP value
  cpufreq/amd-pstate: Toggle auto_sel in active mode on shared memory systems
  cpufreq/amd-pstate: Fix EPP return type and handle errors during initialization
  cpufreq: amd-pstate-ut: Skip tests when amd-pstate driver is not active
  cpufreq/amd-pstate: Prevent the driver from loading on unsupported hardware
  cpufreq/amd-pstate: Loosen requirement on lowest nonlinear frequency != min freq
  Linux 7.2-rc4
  Revert "drm/amd/display: Restore 5s vbl offdelay for NV3x+ DGPUs"
  drm/amd/display: check GRPH_FLIP status before sending event
  drm/amd/display: consolidate DCN vblank/flip handling onto vupdate_no_lock
  drm/amd: Create a device link between APU display and XHCI devices
  drm/amd/display: wire DCN42B mcache programming callback
  drm/amd/display: set new_stream to NULL after release
  drm/amd/display: Force PWM backlight on Lenovo Legion 5 15ARH05
  drm/amdkfd: free MQD managers on DQM init failures
  drm/amdgpu/ttm: Consider concurrent VM flushes for buffer entities
  drm/amd/pm/smu7: Fix AC/DC switch notification
  drm/amdgpu: Disable PCIe dynamic speed switching on Ryzen Pinnacle Ridge
  drm/amdgpu: always emit the job vm fence
  ...
2026-07-23 13:25:55 +02:00
Rafael J. Wysocki
c0139e2b2c intel_idle: Update documentation after adding ACPI _LPI support
After adding ACPI _LPI support to intel_idle, update its admin-guide
documentation to cover the changed behavior.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Sudeep Holla <sudeep.holla@kernel.org>
Link: https://patch.msgid.link/12962673.O9o76ZdvQC@rafael.j.wysocki
2026-07-23 12:55:48 +02:00
Shreshth Srivastava
b0fa123835 x86/mce: Document the mce=print_all command line parameter
The mce=print_all command line option is supported but has never
been documented. Add it.

Suggested-by: Sohil Mehta <sohil.mehta@intel.com>
Signed-off-by: Shreshth Srivastava <shreshth.srivastava@intel.com>
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Reviewed-by: Sohil Mehta <sohil.mehta@intel.com>
Acked-by: Tony Luck <tony.luck@intel.com>
Link: https://patch.msgid.link/20260723013730.3033-1-shreshth.srivastava@intel.com
2026-07-22 20:25:20 -07:00
Eric Biggers
d6a782f294 Documentation: fscrypt: Update docs for inlinecrypt
Update the documentation for the inlinecrypt mount option to reflect
that it's now just about the choice of whether to use inline encryption
hardware, not whether the blk-crypto framework is used.

Also remove an outdated statement about the data unit size, and make the
ext4 and f2fs docs reference the fscrypt docs rather than the block
layer docs directly.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://patch.msgid.link/20260713023708.9245-7-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2026-07-20 10:39:25 -07:00
Tao Cui
5da800b016 Docs/admin-guide/cgroup-v2: fix delay_nsec unit in io.latency doc
The io.latency doc says the io.stat delay field counts microseconds.  The
field is delay_nsec and is reported in nanoseconds.  Refer to it by its
real name and correct the unit.

Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Acked-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-17 07:05:59 -10:00
Manuel Ebner
e6f09a8911 Documentation/kernel-parameters: fix brackets
Add a few missing ']'s and a ')'.

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260703080806.223782-2-manuelebner@mailbox.org>
2026-07-15 10:51:28 -06:00
Iwata Koki
acfee2292b Documentation: admin-guide: fix a doc for efi_no_storage_paranoia the "5KB" instead of the "50%"
The documentation for 'efi_no_storage_paranoia' incorrectly states
the kernel cannot use "more than 50%" of the EFI variable storage.

This percentage-based explanation has been outdated since commit
f8b8404337 ("Modify UEFI anti-bricking code") introduced a fixed 5KB
minimum reserve threshold (EFI_MIN_RESERVE) in
arch/x86/platform/efi/quirks.c. At that time, the documentation was not
updated to reflect this change.

Update the documentation to reflect the "5KB" instead of the "50%".

Signed-off-by: Koki Iwata <iwata.koki@fujitsu.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260706050534.1653916-1-iwata.koki@fujitsu.com>
2026-07-15 10:51:28 -06:00
Zenghui Yu
711719631f docs: pagemap: fix flags location, member name and sample code
The userland visible page flags (KPF_*) were initially moved to
include/linux/kernel-page-flags.h in commit 1a9b5b7fe0 ("mm: export
stable page flags"), and later moved to
include/uapi/linux/kernel-page-flags.h in commit 607ca46e97 ("UAPI:
(Scripted) Disintegrate include/linux").  Update the doc to reflect the
current location of these flags.

The member @walk_end of struct pm_scan_arg {} was wrongly written as
"end_walk".

The first sample code of the PAGEMAP_SCAN ioctl wrongly used the
PM_SCAN_CHECK_WPASYNC flag twice, instead of the PM_SCAN_WP_MATCHING flag.
The second one included the wrong category in the required mask -
PAGE_IS_FILE should be used instead of PAGE_IS_SWAPPED as per the
intention.

Fix them all together.

Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260626162710.25844-1-zenghui.yu@linux.dev>
2026-07-15 10:51:27 -06:00
Manuel Ebner
d1bb650229 Documentation: admin-guide: fix brackets and translation issue
Add missing ']' and replace 'neuer Name' with 'new Name'.

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260629110812.69420-2-manuelebner@mailbox.org>
2026-07-15 10:51:27 -06:00
wangxiaodong
dd242ab6a5 Documentation: admin-guide: cpufreq: fix sampling_rate example command
The example shell command for setting ondemand's sampling_rate wraps an
arithmetic expansion $((...)) in command-substitution backticks. The
arithmetic result is then executed as a command, which fails and writes
an empty value. Drop the surrounding backticks so the computed value is
passed to echo as intended.

Fixes: e54ac58667 ("cpufreq: editing corrections to cpufreq.rst")
Signed-off-by: wangxiaodong <wangxiaodong827546786@gmail.com>
Reviewed-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
[ rjw: Subject tweak ]
Link: https://patch.msgid.link/20260621022515.10137-1-wangxiaodong827546786@gmail.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-07-15 17:46:41 +02:00
Borislav Petkov (AMD)
4a73b93ce4 x86/alternative: Drop smp_locks glue
This was there to be able to patch out locking instructions when running
a SMP kernel build on a UP CPU. The times are long gone when single-CPU
x86 machines were relevant so drop that machinery and simplify the code
considerably.

LOCK_PREFIX needs to stay for when one wants to do a UP build for
whatever reason. That'll go away when CONFIG_SMP becomes unconditional.

Kill a bunch of leftover, unused prototypes while at it.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Acked-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Link: https://lore.kernel.org/r/20260328081634.797552-1-rppt@kernel.org
2026-07-13 09:23:36 -07:00
Manuel Ebner
e2467aabbf docs: admin-guide: thunderbolt: fix sentence structure
Replace ')' with ',' and add 'in' to sentence.

Fixes: 3fb10ea4ce ("thunderbolt: Add support for retimer NVM upgrade when there is no link")
Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260708054923.293003-3-manuelebner@mailbox.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-07-10 15:56:42 +02:00
Luciano Ciccariello
bedd5ea6b7 media: em28xx: Add StarTech SVID2USB232
Add support for the StarTech SVID2USB232 USB analog video grabber
(USB ID eb1a:8286). The device uses the Empia EM28281 bridge, a
member of the em2828X family with an integrated video decoder.

Reuses the EM28XX_BUILTIN decoder path introduced in commit
8e53399c63 ("media: em28xx: Add support for Empia em2828X bridge").
The standard PAL/NTSC switching and composite/S-Video input
switching in em2828X_decoder_set_std() handle this board without
board-specific code.

Inputs:
 - Composite video
 - S-Video
 - Analog stereo audio (line in)

Tested on hardware with a PAL signal on both S-Video and composite
inputs (ffplay -f v4l2 /dev/video0).

This supersedes an earlier RFC posting from before EM28XX_BUILTIN was
available, which proposed a custom EM28XX_I2C_ALGO_EM28281_INTEGRATED
TVP5150-bridge algorithm. That approach is no longer necessary now that
the em2828X bridge support landed.

Link: https://lore.kernel.org/all/20260119185921.575666-1-xeeynamo@hotmail.com/
Signed-off-by: Luciano Ciccariello <xeeynamo@hotmail.com>
Signed-off-by: Hans Verkuil <hverkuil+cisco@kernel.org>
2026-07-10 09:53:50 +02:00
Vishnu Sankar
5223acf679
platform/x86: thinkpad_acpi: Add USB-C Security (USCS) support
Newer ThinkPad systems expose a USB-C Security (Restricted Mode) feature.
When active, USB-C data connections are disabled while power delivery is
preserved. This is useful for kiosk and physically-secured deployments.

Hardware interface:

The HKEY device exposes a read-only ACPI method USCS():

  Return value bit layout:
    Bit 16 : Capability flag (1 = feature present on this SKU)
    Bit  0 : Current state  (0 = security OFF, 1 = security ON)

The sysfs attribute is read-only.

The Fn+U followed by Fn+S hotkey chord is the only way to toggle the
hardware state.

Hotkey:

Fn+U followed by Fn+S generates HKEY event 0x131e.

sysfs interface:

  /sys/devices/platform/thinkpad_acpi/usb_c_security  (read-only)
  "enabled\n"  -- data connections are currently blocked
  "disabled\n" -- data connections are currently allowed

  The attribute is hidden on SKUs where the USCS capability bit (bit 16)
  is not set, so there is no ABI impact on unsupported hardware.

Suggested-by: Mark Pearson <mpearson-lenovo@squebb.ca>
Signed-off-by: Vishnu Sankar <vishnuocv@gmail.com>
Link: https://patch.msgid.link/20260709021504.465792-1-vishnuocv@gmail.com
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-09 16:43:47 +03:00
Li RongQing
a561e19e76 mm/mempool: Untangle CONFIG_SLUB_DEBUG_ON abuse and switch to static key
The mempool subsystem historically wrapped its debugging logic inside an
merely defines compile-time defaults for SLUB and caused two flaws:

1. On production kernels where CONFIG_SLUB_DEBUG=y but
   CONFIG_SLUB_DEBUG_ON=n, mempool debugging was completely compiled out
   at compile time.
2. On kernels with CONFIG_SLUB_DEBUG_ON=y, mempool debugging stayed active
   even if a user explicitly disabled slub debugging at boot time.

Clean up this mess by removing the #ifdef and switching to a runtime static
key (mempool_debug_enabled), allowing mempool debugging to be toggled
cleanly via its own boot parameter.

Suggested-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
Signed-off-by: Li RongQing <lirongqing@baidu.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Harry Yoo <harry@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Hao Li <hao.li@linux.dev>
Cc: Christoph Lameter <cl@gentwo.org>
Cc: David Rientjes <rientjes@google.com>
Cc: Roman Gushchin <roman.gushchin@linux.dev>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Usama Arif <usama.arif@linux.dev>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Harry Yoo (Oracle) <harry@kernel.org>
Link: https://patch.msgid.link/20260604110318.2089-1-lirongqing@baidu.com
Signed-off-by: Vlastimil Babka (SUSE) <vbabka@kernel.org>
2026-07-08 18:31:27 +02:00
Gregory Price
5b6e32ba7b syscall_user_dispatch: Add kernel.syscall_user_dispatch sysctl
Add a matching sysctl to go with CONFIG_SYSCALL_USER_DISPATCH.

kernel.syscall_user_dispatch (default 1 - allow) controls whether
userspace may arm syscall user dispatch (both via prctl and ptrace).

Disarming is always permitted - same semantics as comparable knobs.

Disabling while a task has armed syscall user dispatch does not
cause it to become inactive - instead it remains active until the
user attempts to disable/re-enable via prctl or ptrace.  On the
next attempt to re-enable, the prctl/ptrace call fails gracefully.

The alternative would cause programs translating non-linux syscalls
to interpret those syscalls as linux syscalls, resulting in undefined
userland behavior.

Signed-off-by: Gregory Price <gourry@gourry.net>
Signed-off-by: Thomas Gleixner <tglx@kernel.org>
Link: https://patch.msgid.link/20260706140020.873735-3-gourry@gourry.net
2026-07-08 10:22:00 +02:00
Guopeng Zhang
97fef60258 Docs/admin-guide/cgroup-v2: note blkcg_debug_stats gates io.latency stats
The io.stat section says that enabling the io.latency controller exposes
the depth, avg_lat and win stats in addition to the normal ones. However,
these io.latency-specific stats are debug stats and are only emitted when
the blkcg_debug_stats module parameter is enabled, which is disabled by
default.

Make this explicit so users do not expect these fields to appear in
io.stat by default, and qualify the usage text that suggests using
avg_lat to pick an io.latency target.

Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:26:23 -10:00
Guopeng Zhang
451a746757 Docs/admin-guide/cgroup-v1: document rdma.peak, rdma.events and rdma.events.local
The v1 RDMA controller documentation only describes rdma.max and
rdma.current, but the controller exposes three more files -- rdma.peak,
rdma.events and rdma.events.local -- which are already documented for
v2. Mirror the v2 wording so the v1 documentation matches the files
actually visible on a v1 mount.

Co-developed-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:26:23 -10:00
Guopeng Zhang
5aa31cb1df Docs/admin-guide/cgroup-v2: drop stale misc interface file count
The Miscellaneous controller documentation states it "provides 3 interface
files", but misc_cg_files[] actually registers six (max, current, peak,
capacity, events, events.local). Drop the stale count and let the file
list that follows speak for itself.

Signed-off-by: Guopeng Zhang <zhangguopeng@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-07 12:26:23 -10:00
Manuel Ebner
e9d189aa4b docs: cgroup: Fix bracket
Remove single ')'.

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-07-06 09:40:33 -10:00
Armin Wolf
e02c8d7a19
platform/x86: uniwill-laptop: Add support for USB powershare
Some devices support a "USB powershare" feature where the system will
continue to provide power via the USB ports when hibernating or
powered off.

Add support for this feaure.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260530170813.10166-5-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-06 11:27:06 +03:00
Armin Wolf
c393505bab
platform/x86: uniwill-laptop: Add AC auto boot support
Some devices support a "AC auto boot" feature where the system will
automatically boot when being connected to a power source.

Add support for this feature.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260530170813.10166-4-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-06 11:27:04 +03:00
Armin Wolf
63af040b0b
platform/x86: uniwill-laptop: Add keyboard backlight support
Many Uniwill-based devices support either a white-only or fully
features RGB keyboard backlight. Add support for this feature
and handle the associated WMI events.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260530170813.10166-2-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-07-06 11:27:01 +03:00
Dave Airlie
00422c79d0 drm-misc-next for 7.3:
UAPI Changes:
  - connector: Add color format property
 
 Cross-subsystem Changes:
 
  - dmem: introduce a peak file
 
 Core Changes:
  - atomic: Add create_state callback and helpers to all objects, add
    documentation on atomic commit lifetime
  - buddy: Fix use-after-free, add per-order free and used block
    scoreboards
  - gem: Remove DRIVER_GEM_GPUVA feature flag
  - hdmi: Hook the color format property in the helpers
  - mipi-dsi: Add MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT flag
  - sched: Add test suite for concurrent job submissions
  - virtio: Add support for saving and restoring virtio_gpu_objects,
    abort virtqueue wait on device removal to avoid hung task
 
 Driver Changes:
  - amdgpu: Implement "color format" DRM property
  - amdxdna: Disable device buffer exporting
  - ethosu: Add performance counter support
  - msm: Support DSC configurations with slice_per_pkt > 1
  - mxsfb: Fix disable sequence
  - panthor: Support sparse mappings
  - rockchip: Support YUV background color, Fix layer config timeout, add
    edp support for rk3576, cleanups and formats improvements
  - solomon: Add a batch command submission function
  - tegra: Add DSI support for Tegra 20 and 30, fix dsi driver when the
    firmware hasn't enabled the controller,
  - v3d: Reduce PM runtime autosuspend delay, Scheduler and submission
    fixes and refactoring, Deprecate V3D 3.3 and 4.1 support
 
  - bridge:
    - display-connector: don't autoenable HPD IRQ, trigger initial HPD
      event for DP
    - dw-dp: Null pointer dereference and use-after-free fixes
    - ti-sn65dsi83: Remove NO_HFP and NO_HBP mode flags
  - panel:
    - himax-hx83121a: add backlight regulator support
    - novatek-nt36672a: Inline panel init sequences
    - panel-edp: Add quirks for AUO B116XAT04.3, CMN N116BCP-EA2, CSW
      MNB601LS1-8, BOE NV116WH2-M30, BOE NT116WHM-N21, BOE NV116FH1-M31,
      BOE NV116FH1-M30, NV140FHM-N5B, TM156VDXP25
    - New panels: Samsung ATNA40HQ08-0, Anbernic TD4310, Chipone
      ICNA35XX, Ilitek ILI9488
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Merge tag 'drm-misc-next-2026-06-19' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for 7.3:

UAPI Changes:
 - connector: Add color format property

Cross-subsystem Changes:

 - dmem: introduce a peak file

Core Changes:
 - atomic: Add create_state callback and helpers to all objects, add
   documentation on atomic commit lifetime
 - buddy: Fix use-after-free, add per-order free and used block
   scoreboards
 - gem: Remove DRIVER_GEM_GPUVA feature flag
 - hdmi: Hook the color format property in the helpers
 - mipi-dsi: Add MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT flag
 - sched: Add test suite for concurrent job submissions
 - virtio: Add support for saving and restoring virtio_gpu_objects,
   abort virtqueue wait on device removal to avoid hung task

Driver Changes:
 - amdgpu: Implement "color format" DRM property
 - amdxdna: Disable device buffer exporting
 - ethosu: Add performance counter support
 - msm: Support DSC configurations with slice_per_pkt > 1
 - mxsfb: Fix disable sequence
 - panthor: Support sparse mappings
 - rockchip: Support YUV background color, Fix layer config timeout, add
   edp support for rk3576, cleanups and formats improvements
 - solomon: Add a batch command submission function
 - tegra: Add DSI support for Tegra 20 and 30, fix dsi driver when the
   firmware hasn't enabled the controller,
 - v3d: Reduce PM runtime autosuspend delay, Scheduler and submission
   fixes and refactoring, Deprecate V3D 3.3 and 4.1 support

 - bridge:
   - display-connector: don't autoenable HPD IRQ, trigger initial HPD
     event for DP
   - dw-dp: Null pointer dereference and use-after-free fixes
   - ti-sn65dsi83: Remove NO_HFP and NO_HBP mode flags
 - panel:
   - himax-hx83121a: add backlight regulator support
   - novatek-nt36672a: Inline panel init sequences
   - panel-edp: Add quirks for AUO B116XAT04.3, CMN N116BCP-EA2, CSW
     MNB601LS1-8, BOE NV116WH2-M30, BOE NT116WHM-N21, BOE NV116FH1-M31,
     BOE NV116FH1-M30, NV140FHM-N5B, TM156VDXP25
   - New panels: Samsung ATNA40HQ08-0, Anbernic TD4310, Chipone
     ICNA35XX, Ilitek ILI9488

Signed-off-by: Dave Airlie <airlied@redhat.com>

From: Maxime Ripard <mripard@redhat.com>
Link: https://patch.msgid.link/20260619-burgundy-termite-of-whirlwind-f7a4dd@houat
2026-07-06 17:38:49 +10:00
Eric Biggers
2f204fe718 crypto: af_alg - Add af_alg_restrict sysctl, defaulting to 1
AF_ALG is a frequent source of vulnerabilities and a maintenance
nightmare.  It exposes far more functionality to userspace than ever
should have been exposed, especially to unprivileged processes.  Recent
exploits have targeted kernel internal implementation details like
"authencesn" that have zero use case for userspace access.

Fortunately, AF_ALG is rarely used in practice, as userspace crypto
libraries exist.  And when it is used, only some functionality is known
to be used, and many users are known to hold capabilities already.
iwd for example requires CAP_NET_ADMIN and has a known algorithm list
(https://lore.kernel.org/linux-crypto/bcbbef00-5881-421b-8892-7be6c04b832d@gmail.com/).

Thus, let's restrict the set of allowed algorithms by default, depending
on the capabilities held.

Add a sysctl /proc/sys/crypto/af_alg_restrict with meaning:

    0: unrestricted
    1: limited functionality
    2: completely disabled

Set the default value to 1, which enables an algorithm allowlist for
unprivileged processes and a slightly longer allowlist for privileged
processes.

Note that the list may be tweaked in the future.  However, the common
use cases such as iwd and bluez are taken into account already.  I've
tested that iwd still works with the default value of 1.

Signed-off-by: Eric Biggers <ebiggers@kernel.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-07-05 13:27:15 +08:00
Breno Leitao
de0428ed55 Documentation: bootconfig: document build-time cmdline rendering
Add a section describing CONFIG_CMDLINE_FROM_BOOTCONFIG: what it
does (renders the embedded "kernel" subtree to a flat cmdline at
build time so early_param() handlers see the values), what it
requires (BOOT_CONFIG_EMBED, a non-empty BOOT_CONFIG_EMBED_FILE,
CONFIG_CMDLINE to be empty, and ARCH_SUPPORTS_CMDLINE_FROM_BOOTCONFIG --
currently x86 only), the bootconfig opt-in semantics, the initrd-vs-embedded
precedence, and the soft-error overflow behavior.

This addresses feedback from the Sashiko AI review and Masami Hiramatsu to
document the CONFIG_CMDLINE requirement, which is enforced at the Kconfig
level but was not mentioned in the documentation, potentially confusing users
who might satisfy all other requirements but still find the option hidden in
menuconfig if CONFIG_CMDLINE is non-empty.

Link: https://lore.kernel.org/all/20260626-bootconfig_using_tools-v7-6-24ab72139c29@debian.org/

Signed-off-by: Breno Leitao <leitao@debian.org>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2026-07-02 21:15:45 +09:00
Jinjie Ruan
a037fe3c58 riscv: kexec_file: Add support for crashkernel CMA reservation
Commit 35c18f2933 ("Add a new optional ",cma" suffix to the
crashkernel= command line option") and commit ab475510e0 ("kdump:
implement reserve_crashkernel_cma") added CMA support for kdump
crashkernel reservation. This allows the kernel to dynamically allocate
contiguous memory for crash dumping when needed, rather than permanently
reserving a fixed region at boot time.

So extend crashkernel CMA reservation support to riscv. The following
changes are made to enable CMA reservation:

- Parse and obtain the CMA reservation size along with other crashkernel
  parameters.
- Call reserve_crashkernel_cma() to allocate the CMA region for kdump.
- Include the CMA-reserved ranges for kdump kernel to use, which was
  already done in of_kexec_alloc_and_setup_fdt().
- Exclude the CMA-reserved ranges from the crash kernel memory to
  prevent them from being exported through /proc/vmcore, which was
  already done in the crash core.

Update kernel-parameters.txt to document CMA support for crashkernel on
riscv architecture.

Cc: Paul Walmsley <pjw@kernel.org>
Cc: Palmer Dabbelt <palmer@dabbelt.com>
Cc: Albert Ou <aou@eecs.berkeley.edu>
Cc: Alexandre Ghiti <alex@ghiti.fr>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Paul Walmsley <pjw@kernel.org> # arch/riscv
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20260629094746.191843-11-ruanjinjie@huawei.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
2026-06-30 18:49:06 +03:00
Jinjie Ruan
c12c63d05d arm64: kexec_file: Add support for crashkernel CMA reservation
Commit 35c18f2933 ("Add a new optional ",cma" suffix to the
crashkernel= command line option") and commit ab475510e0 ("kdump:
implement reserve_crashkernel_cma") added CMA support for kdump
crashkernel reservation.

Crash kernel memory reservation wastes production resources if too
large, risks kdump failure if too small, and faces allocation difficulties
on fragmented systems due to contiguous block constraints. The new
CMA-based crashkernel reservation scheme splits the "large fixed
reservation" into a "small fixed region + large CMA dynamic region": the
CMA memory is available to userspace during normal operation to avoid
waste, and is reclaimed for kdump upon crash—saving memory while
improving reliability.

So extend crashkernel CMA reservation support to arm64. The following
changes are made to enable CMA reservation:

- Parse and obtain the CMA reservation size along with other crashkernel
  parameters.
- Call reserve_crashkernel_cma() to allocate the CMA region for kdump.
- Include the CMA-reserved ranges for kdump kernel to use.
- Exclude the CMA-reserved ranges from the crash kernel memory to
  prevent them from being exported through /proc/vmcore, which is already
  done in the crash core.

Update kernel-parameters.txt to document CMA support for crashkernel on
arm64 architecture.

Tested-by: Breno Leitao <leitao@debian.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Rob Herring (Arm) <robh@kernel.org>
Acked-by: Baoquan He <bhe@redhat.com>
Acked-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Link: https://patch.msgid.link/20260629094746.191843-10-ruanjinjie@huawei.com
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
2026-06-30 18:49:06 +03:00
Sun Shaojie
171569f8ee cgroup/cpu: document cpu.stat.local and clarify cpu.stat behavior
Add documentation for the cpu.stat.local interface file, which reports
the throttled_usec stat -- the actual throttling time incurred by the
cgroup's own runqueues, which may include throttling inherited from
ancestor cgroup bandwidth limits. Unlike cpu.stat's throttled_usec
which only accounts for throttling caused by the cgroup's own CFS
bandwidth limit.

When the controller is not enabled, the stat is not reported.

Also clarify cpu.stat descriptions: note that the three base CPU usage
stats (usage_usec, user_usec, system_usec) include descendant cgroups,
and that the five CFS bandwidth stats are non-hierarchical -- they only
account for throttling caused by the cgroup's own bandwidth limit.

Signed-off-by: Sun Shaojie <sunshaojie@kylinos.cn>
Acked-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-06-29 08:53:09 -10:00
Doehyun Baek
46d65096ce Docs/admin-guide/cgroup-v2: fix memory.stat doc details
Fix minor cgroup v2 memory.stat documentation issues.  Correct the
vmalloc per-node marker now that vmalloc uses the native NR_VMALLOC node
stat, and document zswap_incomp as a byte-valued memory amount instead
of as a page counter.

Fixes: c466412c73 ("mm: memcontrol: switch to native NR_VMALLOC vmstat counter")
Fixes: 5ad41a38c3 ("mm: zswap: add per-memcg stat for incompressible pages")
Signed-off-by: Doehyun Baek <doehyunbaek@gmail.com>
Reviewed-by: Nhat Pham <nphamcs@gmail.com>
Acked-by: Michal Koutný <mkoutny@suse.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-06-24 09:56:29 -10:00
Waiman Long
eda17a3a70 cgroup/cpuset: Rebind/migrate mm only for threadgroup leader in cpuset_update_tasks_nodemask()
As reported by sashiko [1], cpuset_update_tasks_nodemask() will do
mpol_rebind_mm() and possibly cpuset_migrate_mm() for all threads of
a multithreaded process. Since commit 3df9ca0a2b ("cpuset: migrate
memory only for threadgroup leaders"), cpuset_attach() had been updated
to rebind and migrate memory only for threadgroup leaders to mark the
group leader as the owner of the mm_struct.

To be consistent and avoid unnecessary performance overhead for heavily
multithreaded processes, follow the cpuset_attach() example and perform
memory rebind and migration only for threadgroup leaders.

Also add a paragraph in cgroup-v2.rst under cpuset.mems that the
threadgroup leader is the memory owner of that threadgroup. Therefore
the non-leading threads shouldn't be in other cgroups whose "cpuset.mems"
doesn't fully overlap that of the group leader.

[1] https://sashiko.dev/#/patchset/20260621032816.1806773-1-longman%40redhat.com

Signed-off-by: Waiman Long <longman@redhat.com>
Reviewed-by: Ridong Chen <ridong.chen@linux.dev>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-06-24 09:42:04 -10:00
Linus Torvalds
840ef6c78e NFS Client Updates for Linux 7.2
New Features:
  * XPRTRDMA: Decouple req recycling from RPC completion
  * NFS: Expose FMODE_NOWAIT for read-only files
 
 Bugfixes:
  * SUNRPC: Fix sunrpc sysfs error handling
  * SUNRPC: Fix uninitialized xprt_create_args structure
  * XPRTRDMA: Harden connect and reply handling
  * NFS: Fix EOF updates after fallocate/zero-range
  * NFS: Keep PG_UPTODATE clear after read errors in page groups
  * NFS: Use nfsi->rwsem to protect traversal of the file lock list
  * NFS: Prevent resource leak in nfs_alloc_server()
  * NFSv4: Clear exception state on successful mkdir retry
  * NFSv4: Don't skip revalidate when holding a dir delegation and attrs are stale
  * pNFS: Fix use-after-free in pnfs_update_layout()
  * pNFS: Defer return_range callbacks until after inode unlock
  * pNFS: Fix LAYOUTCOMMIT retry loop on OLD_STATEID
  * pNFS: Reject zero-length r_addr in nfs4_decode_mp_ds_addr
  * NFS/flexfiles: Reject zero-length filehandle version arrays
  * NFS/flexfiles: Fix checking if a layout is striped
  * NFS/flexfiles: Fixes for honoring FF_FLAGS_NO_IO_THRU_MDS
 
 Other Cleanups and Improvements:
  * Remove the fileid field from struct nfs_inode
  * Move long-delayed xprtrdma work onto the system_dfl_long_wq
  * Convert xprtrdma send buffer free list to an llist
  * Show "<redacted>" for cert_serial and privkey_serial mount options
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Merge tag 'nfs-for-7.2-1' of git://git.linux-nfs.org/projects/anna/linux-nfs

Pull NFS client updates from Anna Schumaker:
 "New features:
   - XPRTRDMA: Decouple req recycling from RPC completion
   - NFS: Expose FMODE_NOWAIT for read-only files

  Bugfixes:
   - SUNRPC:
      - Fix sunrpc sysfs error handling
      - Fix uninitialized xprt_create_args structure
   - XPRTRDMA:
      - Harden connect and reply handling
   - NFS:
      - Fix EOF updates after fallocate/zero-range
      - Keep PG_UPTODATE clear after read errors in page groups
      - Use nfsi->rwsem to protect traversal of the file lock list
      - Prevent resource leak in nfs_alloc_server()
   - NFSv4:
      - Clear exception state on successful mkdir retry
      - Don't skip revalidate when holding a dir delegation and attrs are stale
   - pNFS:
      - Fix use-after-free in pnfs_update_layout()
      - Defer return_range callbacks until after inode unlock
      - Fix LAYOUTCOMMIT retry loop on OLD_STATEID
      - Reject zero-length r_addr in nfs4_decode_mp_ds_addr
   - NFS/flexfiles:
      - Reject zero-length filehandle version arrays
      - Fix checking if a layout is striped
      - Fixes for honoring FF_FLAGS_NO_IO_THRU_MDS

  Other cleanups and improvements:
   - Remove the fileid field from struct nfs_inode
   - Move long-delayed xprtrdma work onto the system_dfl_long_wq
   - Convert xprtrdma send buffer free list to an llist
   - Show "<redacted>" for cert_serial and privkey_serial mount options"

* tag 'nfs-for-7.2-1' of git://git.linux-nfs.org/projects/anna/linux-nfs: (42 commits)
  NFS: Use common error handling code in nfs_alloc_server()
  NFS: Prevent resource leak in nfs_alloc_server()
  NFSv4/pNFS: reject zero-length r_addr in nfs4_decode_mp_ds_addr
  nfs: don't skip revalidate on directory delegation when attrs flagged stale
  xprtrdma: Return sendctx slot after Send preparation failure
  xprtrdma: Repost Receive buffers for malformed replies
  xprtrdma: Sanitize the reply credit grant after parsing
  xprtrdma: Fix bcall rep leak and unbounded peek
  xprtrdma: Resize reply buffers before reposting receives
  xprtrdma: Check frwr_wp_create() during connect
  xprtrdma: Initialize re_id before removal registration
  xprtrdma: Fix ep kref imbalance on ADDR_CHANGE
  xprtrdma: Convert send buffer free list to llist
  NFS: correct CONFIG_NFS_V4 macro name in #endif comment
  nfs: use nfsi->rwsem to protect traversal of the file lock list
  NFSv4.1/pNFS: fix LAYOUTCOMMIT retry loop on OLD_STATEID
  nfs: expose FMODE_NOWAIT for read-only files
  nfs: add nowait version of nfs_start_io_direct
  NFSv4/flexfiles: honor FF_FLAGS_NO_IO_THRU_MDS in pg_get_mirror_count_write
  NFSv4/flexfiles: honor FF_FLAGS_NO_IO_THRU_MDS on fatal DS connect errors
  ...
2026-06-23 18:36:41 -07:00
Linus Torvalds
a1a8bab741 mm.git review status for linus..mm-stable
Everything:
 
 Total patches:       118
 Reviews/patch:       1.57
 Reviewed rate:       62%
 
 Excluding DAMON:
 
 Total patches:       117
 Reviews/patch:       1.58
 Reviewed rate:       63%
 
 Excluding DAMON and selftests:
 
 Total patches:       42
 Reviews/patch:       3.14
 Reviewed rate:       92%
 
 Patch series in this merge:
 
 - The 14 patch series "khugepaged: add mTHP collapse support" from Nico
   Pache provides khugepaged with the capability to collapse anonymous
   memory regions to mTHPs.
 
 - The 14 patch series "Remove CONFIG_READ_ONLY_THP_FOR_FS and enable
   file THP for writable files" from Zi Yan ends up removing the
   READ_ONLY_THP_FOR_FS check in file_thp_enabled(), so that khugepaged and
   MADV_COLLAPSE can run on FSes with PMD THP pagecache support even
   without READ_ONLY_THP_FOR_FS enabled.
 
 - The 55 patch series "make MM selftests more CI friendly" from Mike
   Rapoport provides general fixes and cleanups to the MM selftests.  It
   also moves more MM selftests uder the kselftest framework, making them
   more amenable to ongoing CI testing.
 
 - The 13 patch series "selftests/mm: fix failures and robustness
   improvements" from Sayali Patil fixes several issues in MM selftests
   which were revealed by powerpc 64k pagesize.
 
 - The 3 patch series "selftests/mm: assorted fixes for hmm-tests" from
   Sayali Patil fixes more 64k pagesize issues in the MM selftests.
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Merge tag 'mm-stable-2026-06-23-08-55' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:

 - "khugepaged: add mTHP collapse support" (Nico Pache)

   Provide khugepaged with the capability to collapse anonymous memory
   regions to mTHPs

 - "Remove CONFIG_READ_ONLY_THP_FOR_FS and enable file THP for writable
   files" (Zi Yan)

   Remove the READ_ONLY_THP_FOR_FS check in file_thp_enabled(), so that
   khugepaged and MADV_COLLAPSE can run on filesystems with PMD THP
   pagecache support even without READ_ONLY_THP_FOR_FS enabled

 - "make MM selftests more CI friendly" (Mike Rapoport)

   General fixes and cleanups to the MM selftests. Also move more MM
   selftests under the kselftest framework, making them more amenable to
   ongoing CI testing

 - "selftests/mm: fix failures and robustness improvements" and
   "selftests/mm: assorted fixes for hmm-tests" (Sayali Patil)

   Fix several issues in MM selftests which were revealed by powerpc 64k
   pagesize

* tag 'mm-stable-2026-06-23-08-55' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (118 commits)
  Revert "mm: limit filemap_fault readahead to VMA boundaries"
  mm/vmscan: pass NULL to trace vmscan node reclaim
  mm: use mapping_mapped to simplify the code
  selftests/mm: fix exclusive_cow test fork() handling
  selftests/mm: remove hardcoded THP sizing assumptions in hmm tests
  selftests/mm: allow PUD-level entries in compound testcase of hmm tests
  mm/gup_test: reject wrapped user ranges
  mm/page_frag: reject invalid CPUs in page_frag_test
  mm/damon/core: always put unsuccessfully committed target pids
  mm: page_isolation: avoid unsafe folio reads while scanning compound pages
  mm/shrinker: do not hold RCU lock in shrinker_debugfs_count_show()
  selftests: mm: fix and speedup "droppable" test
  mm: merge writeout into pageout
  MAINTAINERS: add Hao Ge as reviewer for codetag and alloc_tag
  selftests/mm: clarify alternate unmapping in compaction_test
  selftests/mm: move hwpoison setup into run_test() and silence modprobe output for memory-failure category
  selftests/mm: skip uffd-stress test when nr_pages_per_cpu is zero
  selftests/mm: skip uffd-wp-mremap if UFFD write-protect is unsupported
  selftests/mm: ensure destination is hugetlb-backed in hugetlb-mremap
  selftest/mm: register existing mapping with userfaultfd in hugetlb-mremap
  ...
2026-06-23 12:03:44 -07:00
Linus Torvalds
f31c00c377 platform-drivers-x86 for v7.2-1
Highlights:
 
 - amd/hfi: Add support for dynamic ranking tables (version 3)
 
 - amd/pmc:
   - Add PMC driver support for AMD 1Ah M80H SoC
   - Delay suspend for some Lenovo Laptops to avoid keyboard and lid
     switch problems after s2idle
 
 - arm64: qcom-hamoa-ec: Add Hamoa/Purwa/Glymur EC driver
 
 - asus-armoury: add support for G614PR, GA402NJ, GA403UM, and FX608JPR
 
 - asus-wmi: add keystone dongle support
 
 - dell-dw5826e: Add reset driver for DW5826e
 
 - dell-laptop: Fix rollback path
 
 - hp-wmi:
   - Add support for Omen 16-ap0xxx (board ID 8D26) and board ID 8B2F
 
 - intel-hid:
   - Add HP ProBook x360 440 G1 5 button array support
   - Prevent racing ACPI notify handlers
 
 - intel/pmc:
   - Add Nova Lake support
   - Rate-limit LTR scale-factor warning
 
 - intel-uncore-freq:
   - Expose instance ID in the sysfs
   - Fix current_freq_khz after CPU hotplug
 
 - intel/vsec: Restore BAR fallback for header walk
 
 - ISST: Restore SST-PP control to all domains
 
 - lenovo-wmi-*:
   - Add more CPU tunable attributes
   - Add GPU tunable attributes
   - Add WMI battery charge limiting
 
 - oxpec: add support for OneXPlayer Super X
 
 - sel3350-platform: Retain LED state on load and unload
 
 - surface: SAM: Add support for Surface Pro 12in
 
 - uniwill-laptop: Add support for battery charge modes
 
 - tools/power/x86/intel-speed-select: Harden daemon pidfile open
 
 - Major refactoring efforts:
   - ACPI driver to platform driver conversion
   - Converting drivers to use the improved WMI API
 
 - Miscellaneous cleanups / refactoring / improvements
 
 The following is an automated shortlog grouped by driver:
 
 ACPI:
  -  provide acpi_bus_find_device_by_name()
 
 alienware-wmi-base:
  -  Transition to new WMI API
 
 amd: hfi:
  -  Support for ranking table versions
 
 amd/hsmp:
  -  Clamp ioctl/send_message indices (Spectre v1)
 
 amd/pmc:
  -  Add delay_suspend module parameter
  -  Add PMC driver support for AMD 1Ah M80H SoC
  -  Check for intermediate wakeup in function
  -  Delay suspend for some Lenovo Laptops
  -  Don't log during intermediate wakeups
  -  Use per-SoC cpu_info struct for SMU mailbox and IP info
 
 apple-gmux:
  -  Drop unused assignment of pnp_device_id driver data
 
 arm64:
  -  Add driver for EC found on Qualcomm reference devices
 
 arm64: qcom-hamoa-ec:
  -  Fix indentation in comment tables
 
 arm64 Use named initializers for struct i2c_device_id:
  - arm64 Use named initializers for struct i2c_device_id
 
 asus-armoury:
  -  add support for FX608JPR
  -  add support for G614PR
  -  add support for GA402NJ
  -  add support for GA403UM
 
 asus-wmi:
  -  add keystone dongle support
 
 barco-p50-gpio:
  -  attach software node to its target GPIO device
 
 classmate-laptop:
  -  Address memory leaks on driver removal
  -  Convert accel driver to a platform one
  -  Convert ipml driver to a platform one
  -  Convert keys driver to a platform one
  -  Convert tablet driver to a platform one
  -  Convert v4 accel driver to a platform one
  -  Pass struct device pointer to helpers
  -  Register ACPI notify handlers directly
  -  Rename two helper functions
  -  Unify probe rollback and remove code
 
 dell-ddv:
  -  Use new buffer-based WMI API
 
 dell-descriptor:
  -  Use new buffer-based WMI API
 
 dell-dw5826e:
  -  Add reset driver for DW5826e
 
 dell-laptop:
  -  add Inspiron N5110 to touchpad LED quirk table
  -  fix missing cleanups in init error path
 
 dell-privacy:
  -  correct CONFIG_DELL_WMI_PRIVACY macro name in comments
  -  Use new buffer-based WMI API
 
 dell_rbu:
  -  use strscpy in image_type_write
 
 dell-smbios-wmi:
  -  Use new buffer-based WMI API
 
 dell-wmi-base:
  -  Use new buffer-based WMI API
 
 docs:
  -  fix typo in uniwill-laptop.rst
 
 hp-wmi:
  -  Add support for Omen 16-ap0xxx (8D26)
  -  Add support for Omen 16-ap0xxx (8E35)
  -  Add thermal support for board 8B2F
 
 hwmon:
  -  (dell-smm) Use new buffer-based WMI API
 
 intel-hid:
  -  Add HP ProBook x360 440 G1 to button_array_table
  -  Protect ACPI notify handler against recursion
 
 intel/pmc:
  -  Add ACPI PWRM telemetry driver for Nova Lake S
  -  Add Nova Lake support to intel_pmc_core driver
  -  Add NVL PCI IDs for SSRAM telemetry discovery
  -  Add PMC SSRAM Kconfig description
  -  Add support for variable DMU offsets
  -  Enable Pkgc blocking residency counter
  -  Enable PkgC LTR blocking counter
  -  rate-limit LTR scale-factor warning
  -  Retrieve PMC info only for available PMCs
 
 intel/pmc/ssram:
  -  Add ACPI discovery scaffolding
  -  Add PCI platform data
  -  Make PMT registration optional
  -  Refactor DEVID/PWRMBASE extraction into helper
  -  Rename probe and PCI ID table for consistency
  -  Switch to static array with per-index probe state
 
 intel/pmc:
  -  Use __free() in pmc_core_punit_pmt_init()
  -  Use PCI DID for PMC SSRAM device discovery
 
 intel/pmt:
  -  Add pre/post decode hooks around header parsing
  -  Cache the telemetry discovery header
 
 intel/pmt/crashlog:
  -  Split init into pre-decode
 
 intel/pmt:
  -  Pass discovery index instead of resource
 
 intel/pmt/telemetry:
  -  Move overlap check to post-decode hook
 
 intel/pmt:
  -  Unify header fetch and add ACPI source
 
 intel/tpmi:
  -  convert mutex in mem_write() to guard
  -  use cleanup helpers in mem_write()
 
 intel-uncore-freq:
  -  Expose instance ID in the sysfs
  -  Fix current_freq_khz after CPU hotplug
  -  Rename instance_id
 
 intel/vsec:
  -  allocate res with intel_vsec_dev
  -  Restore BAR fallback for header walk
 
 ISST:
  -  Restore SST-PP control to all domains
 
 lenovo-wmi-capdata:
  -  Add debugfs file for dumping capdata
 
 lenovo-wmi-helpers:
  -  Add helper for creating per-device debugfs dir
 
 lenovo-wmi-other:
  -  Add force_load_psy_ext module parameter
  -  Add GPU tunable attributes
  -  Add missing CPU tunable attributes
  -  Add WMI battery charge limiting
  -  Rename LWMI_OM_FW_ATTR_BASE_PATH
 
 meraki-mx100:
  -  use real software node references
 
 modpost:
  -  Handle malformed WMI GUID strings
 
 Move delayed work on system_dfl_wq:
  - Move delayed work on system_dfl_wq
 
 msi-ec:
  -  Add support for MSI Pulse GL66 12th Gen
 
 oxpec:
  -  add support for OneXPlayer Super X
 
 panasonic-laptop:
  -  simplify allocation of sinf
 
 pcengines-apuv2:
  -  reduce indiraction in swnode assignment
 
 pmc_atom:
  -  Use named initializer for pci_device_id array
 
 sel3350-platform:
  -  Retain LED state on load and unload
 
 sonypi:
  -  use strscpy() in sonypi_acpi_probe
 
 surface: SAM:
  -  Add support for Surface Pro 12in
 
 thinkpad_acpi:
  -  Add debugfs entry to display HWDD raw
  -  Remove unneeded goto
 
 tools/power/x86/intel-speed-select:
  -  Harden daemon pidfile open
 
 uniwill-laptop:
  -  Add support for battery charge modes
  -  Enable battery charge modes on supported devices
  -  Mark EC_ADDR_OEM_4 as volatile
  -  Rework FN lock/super key suspend handling
 
 use u8 * for raw byte buffers:
  - use u8 * for raw byte buffers
 
 wmi:
  -  Make sysfs attributes const
  -  Make wmi_bus_class const
 
 x86-android-tablets:
  -  enable fwnode matching of GPIO chips
  -  Use named initializers for struct i2c_device_id
 
 x86/platform/olpc: xo15:
  -  Convert ACPI driver to a platform one
  -  Drop wakeup source on driver removal
 
 xo15-ebook:
  -  Convert ACPI driver to a platform one
  -  Fix formatting of labels
  -  Fix wakeup source and GPE handling
  -  Register ACPI notify handler directly
  -  Use devres-based resource management
 
 Merges:
  -  Merge branch 'fixes' into for-next
  -  Merge branch 'fixes' of into for-next
  -  Merge branch 'intel-sst' of https://github.com/spandruvada/linux-kernel into review-ilpo-next
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Merge tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Ilpo Järvinen:

 - amd/hfi: Add support for dynamic ranking tables (version 3)

 - amd/pmc:
     - Add PMC driver support for AMD 1Ah M80H SoC
     - Delay suspend for some Lenovo Laptops to avoid keyboard and lid
       switch problems after s2idle

 - arm64: qcom-hamoa-ec: Add Hamoa/Purwa/Glymur EC driver

 - asus-armoury: add support for G614PR, GA402NJ, GA403UM, and FX608JPR

 - asus-wmi: add keystone dongle support

 - dell-dw5826e: Add reset driver for DW5826e

 - dell-laptop: Fix rollback path

 - hp-wmi:
     - Add support for Omen 16-ap0xxx (board ID 8D26) and board ID 8B2F

 - intel-hid:
     - Add HP ProBook x360 440 G1 5 button array support
     - Prevent racing ACPI notify handlers

 - intel/pmc:
     - Add Nova Lake support
     - Rate-limit LTR scale-factor warning

 - intel-uncore-freq:
     - Expose instance ID in the sysfs
     - Fix current_freq_khz after CPU hotplug

 - intel/vsec: Restore BAR fallback for header walk

 - ISST: Restore SST-PP control to all domains

 - lenovo-wmi-*:
     - Add more CPU tunable attributes
     - Add GPU tunable attributes
     - Add WMI battery charge limiting

 - oxpec: add support for OneXPlayer Super X

 - sel3350-platform: Retain LED state on load and unload

 - surface: SAM: Add support for Surface Pro 12in

 - uniwill-laptop: Add support for battery charge modes

 - tools/power/x86/intel-speed-select: Harden daemon pidfile open

 - Major refactoring efforts:
     - ACPI driver to platform driver conversion
     - Converting drivers to use the improved WMI API

 - Miscellaneous cleanups / refactoring / improvements

* tag 'platform-drivers-x86-v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (115 commits)
  platform/x86/intel/pmc: Add NVL PCI IDs for SSRAM telemetry discovery
  platform/x86/intel/pmc/ssram: Make PMT registration optional
  platform/x86/intel/pmc/ssram: Add ACPI discovery scaffolding
  platform/x86/intel/pmc/ssram: Switch to static array with per-index probe state
  platform/x86/intel/pmc/ssram: Refactor DEVID/PWRMBASE extraction into helper
  platform/x86/intel/pmc/ssram: Add PCI platform data
  platform/x86/intel/pmc/ssram: Rename probe and PCI ID table for consistency
  platform/x86/intel/pmc: Add ACPI PWRM telemetry driver for Nova Lake S
  platform/x86/intel/pmc: Add PMC SSRAM Kconfig description
  platform/x86/intel/pmt: Unify header fetch and add ACPI source
  platform/x86/intel/pmt: Cache the telemetry discovery header
  platform/x86/intel/pmt: Pass discovery index instead of resource
  platform/x86/intel/pmt/telemetry: Move overlap check to post-decode hook
  platform/x86/intel/pmt/crashlog: Split init into pre-decode
  platform/x86/intel/pmt: Add pre/post decode hooks around header parsing
  modpost: Handle malformed WMI GUID strings
  platform/wmi: Make sysfs attributes const
  platform/wmi: Make wmi_bus_class const
  hwmon: (dell-smm) Use new buffer-based WMI API
  platform/x86: dell-ddv: Use new buffer-based WMI API
  ...
2026-06-23 08:31:33 -07:00
Linus Torvalds
0000d9ccbc Char/Misc/IIO/FPGA/GPIB/etc driver updates for 7.2-rc1
Here is the big set of char, misc, iio, fpga, and other small driver
 subsystems changes for 7.2-rc1.
 
 Lots of little stuff in here, the majority being of course the IIO
 driver updates, as a list they are:
   - IIO driver updates and additions
   - GPIB driver bugfixes and cleanups
   - Android binder driver updates (rust and C version)
   - counter driver updates
   - MHI driver updates
   - mei driver updates
   - w1 driver updates
   - interconnect driver updates
   - Comedi driver fixes and updates
   - some obsolete char drivers removed (applicom and dtlk)
   - hwtracing driver updates
   - other tiny driver updates
 
 All of these have been in linux-next for a while with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull misc driver updates from Greg KH:
 "Here is the big set of char, misc, iio, fpga, and other small driver
  subsystems changes for 7.2-rc1.

  Lots of little stuff in here, the majority being of course the IIO
  driver updates, as a list they are:

   - IIO driver updates and additions

   - GPIB driver bugfixes and cleanups

   - Android binder driver updates (rust and C version)

   - counter driver updates

   - MHI driver updates

   - mei driver updates

   - w1 driver updates

   - interconnect driver updates

   - Comedi driver fixes and updates

   - some obsolete char drivers removed (applicom and dtlk)

   - hwtracing driver updates

   - other tiny driver updates

  All of these have been in linux-next for a while with no reported
  issues"

* tag 'char-misc-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (406 commits)
  w1: ds2482: Use named initializers for arrays of i2c_device_data
  firmware: stratix10-svc: Add support to query Arm Trusted Firmware (ATF) version
  firmware: stratix10-rsu: avoid blocking reboot_image sysfs when busy
  coresight: ultrasoc-smb: Fix OOB write in smb_sync_perf_buffer()
  iio: adc: nxp-sar-adc: harden buffer ISR against per-channel read failure
  iio: chemical: scd30: Replace manual locking with RAII locking
  iio: light: tsl2591: remove unneeded tsl2591_compatible_als_persist_cycle()
  iio: dac: ad5686: create bus ops struct
  iio: dac: ad5686: cleanup doc header of local structs
  iio: dac: ad5686: add control_sync() for single-channel devices
  iio: dac: ad5686: add helpers to handle powerdown masks
  iio: dac: ad5686: add of_match table to the spi driver
  iio: dac: ad5686: drop enum id
  iio: dac: ad5686: remove redundant register definition
  iio: dac: ad5686: refactor include headers
  iio: adc: ad4080: fix AD4880 chip ID
  iio: light: veml3328: add support for new device
  dt-bindings: iio: light: veml6030: add veml3328
  fpga: microchip-spi: fix zero header_size OOB read in mpf_ops_parse_header()
  fpga: dfl-afu: validate DMA mapping length in afu_dma_map_region()
  ...
2026-06-22 12:20:21 -07:00
Linus Torvalds
364f4a55c6 USB/Thunderbolt driver changes for 7.2-rc1
Here is the big set of USB and Thunderbolt driver changes for 7.2-rc1.
 
 Lots of little stuff in here, major highlights include:
   - USB4STREAM support for Thunderbolt devices.  A new way to send "raw"
     data very quickly over a USB4 connection to another system directly.
   - Other thunderbolt updates and changes to make the stream code work
   - xhci driver updates and additions
   - typec driver updates and additions
   - usb gadget driver updates and fixes for reported issues
   - zh_CN documentation translation of the USB documentation
   - usb-serial driver updates
   - dts cleanups for some USB platforms
   - other minor USB driver updates and tweaks
 
 All of these have been in linux-next for over a week with no reported
 issues, most of them for many many weeks.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB and Thunderbolt driver updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver changes for 7.2-rc1.

  Lots of little stuff in here, major highlights include:

   - USB4STREAM support for Thunderbolt devices. A new way to send "raw"
     data very quickly over a USB4 connection to another system directly

   - Other thunderbolt updates and changes to make the stream code work

   - xhci driver updates and additions

   - typec driver updates and additions

   - usb gadget driver updates and fixes for reported issues

   - zh_CN documentation translation of the USB documentation

   - usb-serial driver updates

   - dts cleanups for some USB platforms

   - other minor USB driver updates and tweaks

  All of these have been in linux-next for over a week with no reported
  issues, most of them for many many weeks"

* tag 'usb-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (131 commits)
  usb: ucsi: huawei_gaokun: support mode switching
  thunderbolt: debugfs: Fix sideband write size check
  thunderbolt: debugfs: Fix margining error counter buffer leak
  usb: host: xhci-rcar: Split R-Car Gen2 and Gen3 .plat_start() handling
  usb: host: xhci-rcar: Remove SET_XHCI_PLAT_PRIV_FOR_RCAR() macro
  usb: xhci: allocate internal DCBAA mirror dynamically
  usb: xhci: allocate DCBAA based on host controller max slots
  usb: xhci: refactor DCBAA struct
  xhci: Prevent queuing new commands if xhci is inaccessible
  xhci: dbc: detect and recover hung DbC during enumeraton
  xhci: dbc: add timestamps to DbC state changes in a new helper.
  xhci: dbc: add helper to set and clear DbC DCE enable bit
  xhci: dbc: serialize enabling and disabling dbc
  xhci: dbc: Fix sysfs ABI Documentation for xhci dbc states
  usb: xhci: Improve Soft Retries after short transfers
  usb: xhci: Remove isochronous URB_SHORT_NOT_OK handling
  usb: xhci: Remove skip_isoc_td()
  usb: xhci: Simplify xhci_quiesce()
  usb: xhci: remove legacy 'num_trbs_free' tracking
  usb: xhci: fix typo in xhci_set_port_power() comment
  ...
2026-06-22 12:09:47 -07:00
Mike Rapoport (Microsoft)
a93cbee527 selftests/mm: rename hugepage-* tests to hugetlb-*
hugepage could mean both THP and HugeTLB these days.

Rename hugepage-* tests for HugeTLB to hugetlb-* to avoid confusion.

Make sure that Makefile update keeps alphabetical ordering of the
TEST_GEN_FILES entries.

Keep old binary names in .gitignore because Linus prefers it this way.

Link: https://lore.kernel.org/20260511162840.375890-8-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Donet Tom <donettom@linux.ibm.com>
Reviewed-by: Li Wang <li.wang@linux.dev>
Tested-by: Sarthak Sharma <sarthak.sharma@arm.com>
Tested-by: Luiz Capitulino <luizcap@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-21 11:37:19 -07:00
Mike Rapoport (Microsoft)
9c5a65f374 selftests/mm: merge map_hugetlb into hugepage-mmap
Both tests create a hugettlb mapping, fill it with data and verify the
data, the only difference is that one uses file-backed memory and another
one uses anonymous memory.

Merge both tests into a single file.

Link: https://lore.kernel.org/20260511162840.375890-7-rppt@kernel.org
Signed-off-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Reviewed-by: Luiz Capitulino <luizcap@redhat.com>
Reviewed-by: Donet Tom <donettom@linux.ibm.com>
Tested-by: Luiz Capitulino <luizcap@redhat.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jason Gunthorpe <jgg@ziepe.ca>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: Lance Yang <lance.yang@linux.dev>
Cc: Leon Romanovsky <leon@kernel.org>
Cc: Liam Howlett <liam@infradead.org>
Cc: Li Wang <li.wang@linux.dev>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Mark Brown <broonie@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Peter Xu <peterx@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Sarthak Sharma <sarthak.sharma@arm.com>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-21 11:37:18 -07:00
Nico Pache
cae43f22de Documentation: mm: update the admin guide for mTHP collapse
Now that we can collapse to mTHPs lets update the admin guide to reflect
these changes and provide proper guidance on how to utilize it.

Link: https://lore.kernel.org/20260605161422.213817-15-npache@redhat.com
Signed-off-by: Nico Pache <npache@redhat.com>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Reviewed-by: Bagas Sanjaya <bagasdotme@gmail.com>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rafael Aquini <raquini@redhat.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Takashi Iwai (SUSE) <tiwai@suse.de>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Usama Arif <usama.arif@linux.dev>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Shi <yang@os.amperecomputing.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-21 11:31:32 -07:00
Nico Pache
b5b8b329c4 mm/khugepaged: add per-order mTHP collapse failure statistics
Add three new mTHP statistics to track collapse failures for different
orders when encountering swap PTEs, excessive none PTEs, and shared PTEs:

- collapse_exceed_swap_pte: Increment when mTHP collapse fails due to
	encountering a swap PTE.

- collapse_exceed_none_pte: Counts when mTHP collapse fails due to
  	exceeding the none PTE threshold for the given order

- collapse_exceed_shared_pte: Counts when mTHP collapse fails due to
	encountering a shared PTE.

These statistics complement the existing THP_SCAN_EXCEED_* events by
providing per-order granularity for mTHP collapse attempts.  The stats are
exposed via sysfs under
`/sys/kernel/mm/transparent_hugepage/hugepages-*/stats/` for each
supported hugepage size.

As we currently do not support collapsing mTHPs that contain a swap or
shared entry, those statistics keep track of how often we are encountering
failed mTHP collapses due to these restrictions.

We will add support for mTHP collapse for anonymous pages next; lets also
track when this happens at the PMD level within the per-mTHP stats.

Link: https://lore.kernel.org/20260605161422.213817-9-npache@redhat.com
Signed-off-by: Nico Pache <npache@redhat.com>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rafael Aquini <raquini@redhat.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Takashi Iwai (SUSE) <tiwai@suse.de>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Usama Arif <usama.arif@linux.dev>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Wei Yang <richard.weiyang@gmail.com>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Shi <yang@os.amperecomputing.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-21 11:31:31 -07:00
Dev Jain
d04fa02567 mm/khugepaged: generalize alloc_charge_folio()
Pass order to alloc_charge_folio() and update mTHP statistics.

Link: https://lore.kernel.org/20260605161422.213817-3-npache@redhat.com
Signed-off-by: Dev Jain <dev.jain@arm.com>
Co-developed-by: Nico Pache <npache@redhat.com>
Signed-off-by: Nico Pache <npache@redhat.com>
Reviewed-by: Wei Yang <richard.weiyang@gmail.com>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: Baolin Wang <baolin.wang@linux.alibaba.com>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Reviewed-by: Zi Yan <ziy@nvidia.com>
Acked-by: Usama Arif <usama.arif@linux.dev>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Cc: Alistair Popple <apopple@nvidia.com>
Cc: Andrea Arcangeli <aarcange@redhat.com>
Cc: Anshuman Khandual <anshuman.khandual@arm.com>
Cc: Bagas Sanjaya <bagasdotme@gmail.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Brendan Jackman <jackmanb@google.com>
Cc: Byungchul Park <byungchul@sk.com>
Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: David Rientjes <rientjes@google.com>
Cc: Gregory Price <gourry@gourry.net>
Cc: "Huang, Ying" <ying.huang@linux.alibaba.com>
Cc: Hugh Dickins <hughd@google.com>
Cc: Jan Kara <jack@suse.cz>
Cc: Jann Horn <jannh@google.com>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Joshua Hahn <joshua.hahnjy@gmail.com>
Cc: Kefeng Wang <wangkefeng.wang@huawei.com>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Matthew Brost <matthew.brost@intel.com>
Cc: Matthew Wilcox (Oracle) <willy@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Nanyong Sun <sunnanyong@huawei.com>
Cc: Pedro Falcato <pfalcato@suse.de>
Cc: Peter Xu <peterx@redhat.com>
Cc: Rafael Aquini <raquini@redhat.com>
Cc: Rakie Kim <rakie.kim@sk.com>
Cc: Randy Dunlap <rdunlap@infradead.org>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shivank Garg <shivankg@amd.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Takashi Iwai (SUSE) <tiwai@suse.de>
Cc: Thomas Hellström <thomas.hellstrom@linux.intel.com>
Cc: Usama Arif <usamaarif642@gmail.com>
Cc: Vishal Moola (Oracle) <vishal.moola@gmail.com>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: Will Deacon <will@kernel.org>
Cc: Yang Shi <yang@os.amperecomputing.com>
Cc: Zach O'Keefe <zokeefe@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-21 11:31:29 -07:00
Linus Torvalds
5e2e14749c Landlock update for v7.2-rc1
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Merge tag 'landlock-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "This adds new Landlock access rights to control UDP bind and
  connect/send operations, and a new "quiet" feature to mute specific
  specific audit logs (and other future observability events).

  A few commits also fix Landlock issues"

* tag 'landlock-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (24 commits)
  selftests/landlock: Add tests for invalid use of quiet flag
  selftests/landlock: Add tests for quiet flag with scope
  selftests/landlock: Add tests for quiet flag with net rules
  selftests/landlock: Add tests for quiet flag with fs rules
  selftests/landlock: Replace hard-coded 16 with a constant
  samples/landlock: Add quiet flag support to sandboxer
  landlock: Suppress logging when quiet flag is present
  landlock: Add API support and docs for the quiet flags
  landlock: Add a place for flags to layer rules
  landlock: Add documentation for UDP support
  samples/landlock: Add sandboxer UDP access control
  selftests/landlock: Add tests for UDP send
  selftests/landlock: Add tests for UDP bind/connect
  landlock: Add UDP send+connect access control
  landlock: Add UDP bind() access control
  landlock: Fix unmarked concurrent access to socket family
  selftests/landlock: Explicitly disable audit in teardowns
  selftests/landlock: Test SCOPE_SIGNAL on the SIGIO/fowner pgid path
  landlock: Fix LANDLOCK_SCOPE_SIGNAL bypass on the SIGIO path
  landlock: Demonstrate best-effort allowed_access filtering
  ...
2026-06-19 12:20:25 -07:00
Linus Torvalds
e2c0595b56 Hi,
Please, pull. This pull request contains only bug fixes.
 
 BR, Jarkko
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Merge tag 'for-next-keys-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull keys update from Jarkko Sakkinen:
 "This contains only bug fixes"

* tag 'for-next-keys-7.2-rc1-2' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  keys: keyctl_pkey: replace BUG with return -EOPNOTSUPP
  keys: request_key: replace BUG with return -EINVAL
  keys: Pin request_key_auth payload in instantiate paths
  keys: prevent slab cache merging for key_jar
  keys: Replace strcpy(derived_buf, "AUTH_KEY") with strscpy(..., HASH_SIZE)
  KEYS: Use acquire when reading state in keyring search
  keys/trusted_keys: mark 'migratable' as __ro_after_init
  keys: use kmalloc_flex in user_preparse
  KEYS: trusted: Debugging as a feature
  KEYS: encrypted: Remove unnecessary selection of CRYPTO_RNG
  KEYS: fix overflow in keyctl_pkey_params_get_2()
2026-06-19 12:14:08 -07:00
Linus Torvalds
0798268aa4 integrity-v7.2
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Merge tag 'integrity-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity

Pull IMA updates from Mimi Zohar:

 - Introduce IMA and EVM post-quantum ML-DSA signature support

   ML-DSA signature support for IMA and EVM is limited to sigv3
   signatures, which calculates and verifies a hash of a compact
   structure containing the file data/metadata hash, hash type, and hash
   algorithm. IMA and EVM still calculate the file data/metadata hashes
   respectively.

 - Introduce support for removing IMA measurement list records stored in
   kernel memory

   The IMA measurement list can grow large depending on policy, but
   removing records breaks remote attestation, unless they are safely
   preserved and made available for attestation requests. Until
   environments are prepared to preserve the measurement records, a new
   CONFIG_IMA_STAGING Kconfig option is introduced to guard against
   deletion.

   Several approaches for removing measurement list records were
   evaluated but rejected due to filesystem constraints, the
   introduction of a new critical data record, and locking concerns. Two
   methods are being upstreamed: staged deletion with confirmation, and
   staged deletion of N records without confirmation. Both methods
   minimize the period during which new measurements are blocked from
   being appended to the measurement list by staging the measurement
   list.

   A comparison of the two methods is included in the documentation.

 - Some code cleanup, and a couple of bug fixes

* tag 'integrity-v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/zohar/linux-integrity:
  doc: security: Add documentation of exporting and deleting IMA measurements
  ima: Support staging and deleting N measurements records
  ima: Add support for flushing the hash table when staging measurements
  ima: Add support for staging measurements with prompt
  ima: Introduce ima_dump_measurement()
  ima: Use snprintf() in create_securityfs_measurement_lists
  ima: Mediate open/release method of the measurements list
  ima: Introduce _ima_measurements_start() and _ima_measurements_next()
  ima: Introduce per binary measurements list type binary_runtime_size value
  ima: Introduce per binary measurements list type ima_num_records counter
  ima: Replace static htable queue with dynamically allocated array
  ima: Remove ima_h_table structure
  evm: terminate and bound the evm_xattrs read buffer
  integrity: Add support for sigv3 verification using ML-DSA keys
  integrity: Refactor asymmetric_verify for reusability
  integrity: Check that algo parameter is within valid range
  integrity: Check for NULL returned by asymmetric_key_public_key
  ima: return error early if file xattr cannot be changed
  ima: Fix sigv3 signature handling for EVM_IMA_XATTR_DIGSIG
2026-06-19 11:32:05 -07:00
Linus Torvalds
a552c81ff4 mm.git review status for mm-hotfixes-stable..mm-stable
Everything:
 
 Total patches:       321
 Reviews/patch:       1.52
 Reviewed rate:       68%
 
 Excluding DAMON:
 
 Total patches:       227
 Reviews/patch:       2.07
 Reviewed rate:       90%
 
 Excluding DAMON and selftests:
 
 Total patches:       203
 Reviews/patch:       2.14
 Reviewed rate:       91%
 
 Patchsets in this merge:
 
 - The 2 patch series "selftests/mm: clean up build output and verbosity"
   from Li Wang removes some noise from the MM selftests build out.
 
 - The 3 patch series "mm: Free contiguous order-0 pages efficiently"
   from Ryan Roberts speeds up the freeing of a batch of 0-order pages by
   first scanning them for coalescing opportunities.  This is applicable to
   vfree() and to the releasing of frozen pages.
 
 - The 11 patch series "mm/damon: introduce DAMOS failed region quota
   charge ratio" from SeongJae Park addresses a DAMOS usability issue: The
   DAMOS quota often exhausts prematurely because it charges for all memory
   attempted, causing slow and inconsistent performance when actions fail
   on unreclaimable memory.
 
   To fix this, a new feature lets users set a smaller, flexible quota
   charge ratio (via a numerator and denominator) for failed regions.
   Since failed actions cause less overhead, reducing their quota cost
   ensures more predictable and efficient DAMOS processing
 
 - The 8 patch series "selftests/cgroup: improve zswap tests robustness
   and support large page sizes" from Li Wang fixes various spurious
   failures and improves the overall robustness of the cgroup zswap
   selftests.
 
 - The 3 patch series "fix MAP_DROPPABLE not supported errno" from
   Anthony Yznaga fixes an issue in the mlock selftests on arm32.
 
 - The 2 patch series "mm: huge_memory: clean up defrag sysfs with
   shared" from Breno Leitao does some maintenance work in the huge_memory
   code.
 
 - The 3 patch series "treewide: fixup gfp_t printks" from Brendan
   Jackman uses the special vprintf() gfp_t conversion in various places.
 
 - The 6 patch series "mm: Fix vmemmap optimization accounting and
   initialization" from Muchun Song fixes several bugs in the vmemmap
   optimization, mainly around incorrect page accounting and memmap
   initialization in the DAX and memory hotplug paths.  It also fixes
   pageblock migratetype initialization and struct page initialization for
   ZONE_DEVICE compound pages.
 
 - The 4 patch series "mm/damon: repost non-hotfix reviewed patches in
   damon/next tree" from is a sprinkle of unrelated minor bugfixes for
   DAMON.
 
 - The 3 patch series "mm: remove page_mapped()" from David Hildenbrand
   remove this function from the tree, replacing it with folio_mapped().
 
 - The 10 patch series "mm/damon: let DAMON be paused and resumed" from
   SeongJae Park permits DAMON to be paused and resumed without losing its
   current state.
 
 - The 3 patch series "kasan: hw_tags: Disable tagging for stack and
   page-tables" from Muhammad Usama Anjum simplifies and speeds up kasan by
   removing its ineffective tagging of stacks and page tables.
 
 - The 7 patch series "mm/damon/reclaim,lru_sort: monitor all system rams
   by default" from SeongJae Park simplifies deployment on diverse hardware
   like NUMA systems by updating DAMON_RECLAIM and DAMON_LRU_SORT to
   automatically monitor the physical address range covering all System RAM
   areas by default, replacing the overly restrictive behavior that only
   targeted the single largest memory block to save on negligible overhead.
 
 - The 2 patch series "mm/damon/sysfs: document filters/ directory as
   deprecated" from SeongJae Park updates some DAMON docs.
 
 - The 8 patch series "mm: use spinlock guards for zone lock" from Dmitry
   Ilvokhin switches zone->lock handling over to using the guard()
   mechanisms.
 
 - The 2 patch series "mm/filemap: tighten mmap_miss hit accounting" from
   fujunjie fixes a flaw where the mmap_miss counter over-credited page
   cache hits during fault-arounds and page-fault retries.  This results in
   significant reduction of redundant synchronous mmap readahead I/O,
   drastically cutting down execution time and gigabytes read for sparse
   random or strided memory access workloads.
 
 - The 2 patch series "selftests/cgroup: Fix false positive failures in
   test_percpu_basic" from Li Wang fixes a couple of false-positives in the
   cgroup kmem selftests.
 
 - The 2 patch series "mm/damon/reclaim: support monitoring intervals
   auto-tuning" from SeongJae Park adds a new parameter to DAMON permitting
   DAMON_RECLAIM to automatically tune DAMON's sampling and aggregation
   intervals.
 
 - The 2 patch series "mm/damon/stat: add kdamond_pid parameter" from
   SeongJae Park chnges DAMON_STAT to provide the pid of its kdamond.
 
 - The 2 patch series "mm/kmemleak: dedupe verbose scan output" from
   Breno Leitao removes large amounts of duplicated backtraces from the
   verbose-mode kmemleak output.
 
 - The 8 patch series "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)"
   from David Hildenbrand reduces our use of CONFIG_HAVE_BOOTMEM_INFO_NODE,
   with a view to removing it entirely in a later series.
 
 - The 2 patch series "mm/damon: validate min_region_size to be power of
   2" from Liew Rui Yan prevents users from passing a non-power-of-2 value
   of `addr_unit', as this later results in undesirable behavior.
 
 - The 2 patch series "mm: document read_pages and simplify usage" from
   Frederick Mayle does as claimed.
 
 - The 3 patch series "tools/mm/page-types: Fix misc bugs" from Ye Liu
   fixes three issues in tools/mm/page-types.c.
 
 - The 4 patch series "mm: misc cleanups from __GFP_UNMAPPED series" from
   Brendan Jackman implements several cleanups in the page allocator and
   related code.
 
 - The 12 patch series "mm, swap: swap table phase IV: unify allocation"
   from Kairui Song unifies the allocation and charging of anon and shmem
   swap in folios, provides better synchronization, consolidates the
   metadata management, hence dropping the static array and map, and
   improves performance.
 
 - The 28 patch series "mm/damon: introduce data attributes monitoring"
   from SeongJae Park extends DAMON for monitoring general data attributes
   other than accesses.
 
 - The 5 patch series "mm/vmalloc: free unused pages on vrealloc()
   shrink" from Shivam Kalra implements the TODO in vrealloc() to unmap and
   free unused pages when shrinking across a page boundary.
 
 - The 3 patch series "mm/damon: documentation and comment fixes" from
   niecheng does as advertised.
 
 - The 3 patch series "remove mmap_action success, error hooks" from
   Lorenzo Stoakes eliminates custom hooks from mmap_action by removing the
   problematic success_hook which allowed drivers to improperly access
   uninitialized VMAs.  It replaces the error_hook with a simple error-code
   field and updates the memory char driver accordingly.
 
 - The 14 patch series "mm/damon: minor improvements for code readability
   and tests" from SeongJae Park implements minor improvements in code
   readability and tests for DAMON.
 
 - The 2 patch series "mm/damon: fix macro arguments and clarify quota
   goals doc" from Maksym Shcherba does those things.
 
 - The 2 patch series "userfaultfd: merge fs/userfaultfd.c into
   mm/userfaultfd.c" from Mike Rapoport performs that code movement.
 
 - The 15 patch series "mm/mglru: improve reclaim loop and dirty folio"
   from Kairui Song and others cleans up and slightly improves MGLRU's
   reclaim loop and dirty writeback handling.  Large performance
   improvements are measured.
 
 - The 3 patch series "use vma locks for proc/pid/{smaps|numa_maps}
   reads" from Suren Baghdasaryan uses per-vma locks when reading
   /proc/pid/smaps and /proc/pid/numa_maps similar to reduce contention on
   central mmap_lock.
 
 - The 2 patch series "refactors thpsize_shmem_enabled_store() and
   thpsize_shmem_enabled_show()" from Ran Xiaokai provides some cleanup
   work in the THP code.
 
 - The 2 patch series "selftests/memfd: fix compilation warnings" from
   Konstantin Khorenko fixes a few build glitches in the memfd selftest
   code.
 
 - The 4 patch series "memcg: shrink obj_stock_pcp and cache multiple
   objcgs" from Shakeel Butt resolves a 68% performance regression caused
   by NUMA-node cache thrashing around struct obj_stock_pcp by shrinking
   its existing fields and expanding it into a multi-slot array that caches
   up to five obj_cgroup pointers per CPU, allowing per-node variants of
   the same memcg to coexist within a single 64-byte cache line.
 
 - The 2 patch series "zram: writeback fixes" from Sergey Senozhatsky
   addresses a couple of unrelated zram writeback issues.
 
 - The 9 patch series "mm: switch THP shrinker to list_lru" from Johannes
   Weiner resolves NUMA-awareness issues and streamlines callsite
   interaction by refactoring and extending the list_lru API to completely
   replace the complex, open-coded deferred split queue for Transparent
   Huge Pages (THPs).
 
 - The 2 patch series "mm: improve large folio readahead for exec memory"
   from Usama Arif improves large-folio readahead on systems like 64K-page
   arm64 by preventing the mmap_miss check from permanently disabling
   target-oriented VM_EXEC readahead, and by generalizing the
   force_thp_readahead gate to support mappings with any usefully large
   maximum folio order under the cache cap.
 
 - The 6 patch series "userfaultfd/pagemap: pre-existing fixes" from
   Kiryl Shutsemau fixes a bunch of minor issues in the
   userfaultfd/pagemap, all of which were flagged by Sashiko review of
   proposed new material.
 
 - The 5 patch series "mm/sparse-vmemmap: Provide generic
   vmemmap_set_pmd() and vmemmap_check_pmd()" from Muchun Song provides
   generic versions of these two functions so the four arch-specific
   implementations can be removed.
 
 - The 2 patch series "mm/swap, PM: hibernate: fix swapoff race in
   uswsusp by pinning swap device" from Youngjun Park addresses a
   uswsusp-vs-swapoff race and reduces the swap device reference
   taking/releasing frequency.
 
 - The 2 patch series "mm/hmm: A fix and a selftest" from Dev Jain does
   as claimed.
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Merge tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:

 - "selftests/mm: clean up build output and verbosity" (Li Wang)

   Remove some noise from the MM selftests build

 - "mm: Free contiguous order-0 pages efficiently" (Ryan Roberts)

   Speed up the freeing of a batch of 0-order pages by first scanning
   them for coalescing opportunities. This is applicable to vfree() and
   to the releasing of frozen pages

 - "mm/damon: introduce DAMOS failed region quota charge ratio"
   (SeongJae Park)

   Address a DAMOS usability issue: The DAMOS quota often exhausts
   prematurely because it charges for all memory attempted, causing slow
   and inconsistent performance when actions fail on unreclaimable
   memory.

   To fix this, a new feature lets users set a smaller, flexible quota
   charge ratio (via a numerator and denominator) for failed regions.
   Since failed actions cause less overhead, reducing their quota cost
   ensures more predictable and efficient DAMOS processing

 - "selftests/cgroup: improve zswap tests robustness and support large
   page sizes" (Li Wang)

   Fix various spurious failures and improves the overall robustness of
   the cgroup zswap selftests

 - "fix MAP_DROPPABLE not supported errno" (Anthony Yznaga)

   Fix an issue in the mlock selftests on arm32

 - "mm: huge_memory: clean up defrag sysfs with shared" (Breno Leitao)

   Some maintenance work in the huge_memory code

 - "treewide: fixup gfp_t printks" (Brendan Jackman)

   Use the special vprintf() gfp_t conversion in various places

 - "mm: Fix vmemmap optimization accounting and initialization" (Muchun
   Song)

   Fix several bugs in the vmemmap optimization, mainly around incorrect
   page accounting and memmap initialization in the DAX and memory
   hotplug paths. It also fixes pageblock migratetype initialization and
   struct page initialization for ZONE_DEVICE compound pages

 - "mm/damon: repost non-hotfix reviewed patches in damon/next tree"

   A sprinkle of unrelated minor bugfixes for DAMON

 - "mm: remove page_mapped()" (David Hildenbrand)

   Remove this function from the tree, replacing it with folio_mapped()

 - "mm/damon: let DAMON be paused and resumed" (SeongJae Park)

   Allow DAMON to be paused and resumed without losing its current state

 - "kasan: hw_tags: Disable tagging for stack and page-tables" (Muhammad
   Usama Anjum)

   Simplify and speed up kasan by removing its ineffective tagging of
   stacks and page tables

 - "mm/damon/reclaim,lru_sort: monitor all system rams by default"
   (SeongJae Park)

   Simplify deployment on diverse hardware like NUMA systems by updating
   DAMON_RECLAIM and DAMON_LRU_SORT to automatically monitor the
   physical address range covering all System RAM areas by default,
   replacing the overly restrictive behavior that only targeted the
   single largest memory block to save on negligible overhead

 - "mm/damon/sysfs: document filters/ directory as deprecated" (SeongJae
   Park)

   Update some DAMON docs

 - "mm: use spinlock guards for zone lock" (Dmitry Ilvokhin)

   Switch zone->lock handling over to using the guard() mechanisms

 - "mm/filemap: tighten mmap_miss hit accounting" (fujunjie)

   Fix a flaw where the mmap_miss counter over-credited page cache hits
   during fault-arounds and page-fault retries. This results in
   significant reduction of redundant synchronous mmap readahead I/O,
   drastically cutting down execution time and gigabytes read for sparse
   random or strided memory access workloads

 - "selftests/cgroup: Fix false positive failures in test_percpu_basic"
   (Li Wang)

   Fix a couple of false-positives in the cgroup kmem selftests

 - "mm/damon/reclaim: support monitoring intervals auto-tuning"
   (SeongJae Park)

   Add a new parameter to DAMON permitting DAMON_RECLAIM to
   automatically tune DAMON's sampling and aggregation intervals

 - "mm/damon/stat: add kdamond_pid parameter" (SeongJae Park)

   Change DAMON_STAT to provide the pid of its kdamond

 - "mm/kmemleak: dedupe verbose scan output" (Breno Leitao)

   Remove large amounts of duplicated backtraces from the verbose-mode
   kmemleak output

 - "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 1)" (David
   Hildenbrand)

   Reduce our use of CONFIG_HAVE_BOOTMEM_INFO_NODE, with a view to
   removing it entirely in a later series

 - "mm/damon: validate min_region_size to be power of 2" (Liew Rui Yan)

   Prevent users from passing a non-power-of-2 value of `addr_unit', as
   this later results in undesirable behavior

 - "mm: document read_pages and simplify usage" (Frederick Mayle)

 - "tools/mm/page-types: Fix misc bugs" (Ye Liu)

   Fix three issues in tools/mm/page-types.c

 - "mm: misc cleanups from __GFP_UNMAPPED series" (Brendan Jackman)

   Implement several cleanups in the page allocator and related code

 - "mm, swap: swap table phase IV: unify allocation" (Kairui Song)

   Unify the allocation and charging of anon and shmem swap in folios,
   provides better synchronization, consolidates the metadata
   management, hence dropping the static array and map, and improves
   performance

 - "mm/damon: introduce data attributes monitoring" (SeongJae Park(

   Extend DAMON to monitor general data attributes other than accesses

 - "mm/vmalloc: free unused pages on vrealloc() shrink" (Shivam Kalra)

   Implement the TODO in vrealloc() to unmap and free unused pages when
   shrinking across a page boundary

 - "mm/damon: documentation and comment fixes" (niecheng)

 - "remove mmap_action success, error hooks" (Lorenzo Stoakes)

   Eliminate custom hooks from mmap_action by removing the problematic
   success_hook which allowed drivers to improperly access uninitialized
   VMAs. It replaces the error_hook with a simple error-code field and
   updates the memory char driver accordingly

 - "mm/damon: minor improvements for code readability and tests"
   (SeongJae Park)

 - "mm/damon: fix macro arguments and clarify quota goals doc" (Maksym
   Shcherba)

 - "userfaultfd: merge fs/userfaultfd.c into mm/userfaultfd.c" (Mike
   Rapoport)

 - "mm/mglru: improve reclaim loop and dirty folio" (Kairui Song and
   others)

   Clean up and slightly improves MGLRU's reclaim loop and dirty
   writeback handling. Large performance improvements are measured

 - "use vma locks for proc/pid/{smaps|numa_maps} reads" (Suren
   Baghdasaryan)

   Use per-vma locks when reading /proc/pid/smaps and numa_maps similar
   to reduce contention on central mmap_lock

 - "refactors thpsize_shmem_enabled_store() and thpsize_shmem_enabled_show()"
   (Ran Xiaokai)

   Some cleanup work in the THP code

 - "selftests/memfd: fix compilation warnings" (Konstantin Khorenko)

   Fix a few build glitches in the memfd selftest code.

 - "memcg: shrink obj_stock_pcp and cache multiple objcgs" (Shakeel
   Butt)

   Resolve a 68% performance regression caused by NUMA-node cache
   thrashing around struct obj_stock_pcp by shrinking its existing
   fields and expanding it into a multi-slot array that caches up to
   five obj_cgroup pointers per CPU, allowing per-node variants of the
   same memcg to coexist within a single 64-byte cache line.

 - "zram: writeback fixes" (Sergey Senozhatsky)

   address a couple of unrelated zram writeback issues

 - "mm: switch THP shrinker to list_lru" (Johannes Weiner)

   Resolve NUMA-awareness issues and streamlines callsite interaction by
   refactoring and extending the list_lru API to completely replace the
   complex, open-coded deferred split queue for Transparent Huge Pages

 - "mm: improve large folio readahead for exec memory" (Usama Arif)

   Improve large-folio readahead on systems like 64K-page arm64 by
   preventing the mmap_miss check from permanently disabling
   target-oriented VM_EXEC readahead, and by generalizing the
   force_thp_readahead gate to support mappings with any usefully large
   maximum folio order under the cache cap.

 - "userfaultfd/pagemap: pre-existing fixes" (Kiryl Shutsemau)

   Fix a bunch of minor issues in the userfaultfd/pagemap, all of which
   were flagged by Sashiko review of proposed new material

 - "mm/sparse-vmemmap: Provide generic vmemmap_set_pmd() and
   vmemmap_check_pmd()" (Muchun Song)

   Provide generic versions of these two functions so the four
   arch-specific implementations can be removed.

 - "mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap
   device" (Youngjun Park)

   Address a uswsusp-vs-swapoff race and reduces the swap device
   reference taking/releasing frequency.

 - "mm/hmm: A fix and a selftest" (Dev Jain)

* tag 'mm-stable-2026-06-18-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (321 commits)
  selftests/mm/hmm-tests: test pagemap reads of PMD device-private entries
  fs/proc/task_mmu: do not warn on seeing non-migration pmd entry
  lib/test_hmm: check alloc_page_vma() return value and handle OOM
  mm/compaction: cap compact_gap() at COMPACT_CLUSTER_MAX
  mm/swap: remove redundant swap device reference in alloc/free
  mm/swap, PM: hibernate: fix swapoff race in uswsusp by pinning swap device
  mm/filemap: use folio_next_index() for start
  vmalloc: fix NULL pointer dereference in is_vm_area_hugepages()
  sparc/mm: drop vmemmap_check_pmd helper and use generic code
  loongarch/mm: drop vmemmap_check_pmd helper and use generic code
  riscv/mm: drop vmemmap_pmd helpers and use generic code
  arm64/mm: drop vmemmap_pmd helpers and use generic code
  mm/sparse-vmemmap: provide generic vmemmap_set_pmd() and vmemmap_check_pmd()
  rust: page: mark Page::nid as inline
  userfaultfd: build __VMA_UFFD_FLAGS from config-gated masks
  userfaultfd: gate must_wait writability check on pte_present()
  mm/huge_memory: preserve pmd_swp_uffd_wp on device-private PMD downgrade
  fs/proc/task_mmu: fix hugetlb self-deadlock in pagemap_scan_pte_hole()
  fs/proc/task_mmu: use huge_page_size() in pagemap_scan_hugetlb_entry()
  fs/proc/task_mmu: fix make_uffd_wp_huge_pte() prot-update race
  ...
2026-06-19 10:14:34 -07:00
Linus Torvalds
8c13415c8a [GIT PULL for v7.2] media updates
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Merge tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media updates from Mauro Carvalho Chehab:

 - v4l2:
     - core: fix subdev sensor ownership
     - subdev: Allow accessing routes with STREAMS client capability
     - ctrls: Add validation for HEVC active reference counts and
       background detection control
     - common: Add YUV24 format info and has_alpha helper

 - vb2: Change vb2_read() and vb2_write() return types to ssize_t

 - i2c: cvs: Add driver of Intel Computer Vision Sensing Controller(CVS)

 - atmel-isc: remove deprecated driver

 - cec: Add CEC Latency Indication Protocol (LIP) support

 - imon: Add iMON VFD HID OEM v1.2 key mappings

 - AVMatrix: new HWS capture driver

 - isp4: new AMD capture driver

 - qcom:
     - iris: Add hierarchical coding, B-frame, and Long-Term Reference
       support for encoder
     - camss: Add SM6350 platform support
     - venus: Add SM6115 platform support

 - chips-media: wave5: Add support for Packed YUV422, CBP profile, and
   background detection

 - csi2rx: Add multistream support and 32 dma chans

 - Several cleanups and fixes

* tag 'media/v7.2-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (394 commits)
  media: v4l2-fwnode: Fix subdev owner overwritten in v4l2_async_register_subdev_sensor()
  media: qcom: iris: vdec: allow GEN2 decoding into 10bit format
  media: qcom: iris: vdec: update find_format to handle 8bit and 10bit formats
  media: qcom: iris: vdec: update size and stride calculations for 10bit formats
  media: qcom: iris: gen2: add support for 10bit decoding
  media: qcom: iris: add QC10C & P010 buffer size calculations
  media: qcom: iris: add helpers for 8bit and 10bit formats
  media: qcom: iris: Fix FPS calculation and VPP FW overhead
  media: qcom: camss: vfe-340: Support for PIX client
  media: qcom: camss: vfe-340: Proper client handling
  media: qcom: camss: csid-340: Enable PIX interface routing
  media: qcom: camss: csid-340: Add port-to-interface mapping
  media: qcom: camss: csid-340: Switch to generic CSID_CFG/CTRL registers
  media: iris: Initialize HFI ops after firmware load in core init
  media: iris: drop struct iris_fmt
  media: iris: Add platform data for X1P42100
  media: iris: Add hardware power on/off ops for X1P42100
  media: iris: optimize COMV buffer allocation for VPU3x and VPU4x
  media: iris: add FPS calculation and VPP FW overhead in frequency formula
  media: qcom: iris: Simplify COMV size calculation
  ...
2026-06-18 17:21:54 -07:00
Linus Torvalds
4cc14386e3 dma-mapping updates for Linux 7.2:
- added more checks for DMA attributes in the debug code, especially
   to ensure that mappings are created and released with matching
   attributes (Leon Romanovsky)
 
 - better default configuration for CMA on NUMA machines (Feng Tang)
 
 - little code cleanup in dma benchmark tool (Rosen Penev)
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Merge tag 'dma-mapping-7.2-2026-06-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux

Pull dma-mapping updates from Marek Szyprowski:

 - added checks for DMA attributes in the debug code, especially to
   ensure that mappings are created and released with matching
   attributes (Leon Romanovsky)

 - better default configuration for CMA on NUMA machines (Feng Tang)

 - code cleanup in dma benchmark tool (Rosen Penev)

* tag 'dma-mapping-7.2-2026-06-16' of git://git.kernel.org/pub/scm/linux/kernel/git/mszyprowski/linux:
  dma: map_benchmark: turn dma_sg_map_param buf into a flexible array
  dma-contiguous: simplify numa cma area handling
  dma-contiguous: add kconfig option to setup numa cma area if not configured explicitly
  dma-debug: Ensure mappings are created and released with matching attributes
  dma-debug: Feed DMA attribute for unmapping flows too
  dma-debug: Record DMA attributes in debug entry
  dma-debug: Remove unused DMA attribute parameter
  ntb: Use consistent DMA attributes when freeing DMA mappings
  ntb: Store original DMA address for future release
2026-06-17 12:20:21 -07:00
Linus Torvalds
83476cc97b cgroup: Changes for v7.2
- Last cycle deferred css teardown on cgroup removal until the cgroup
   depopulated, so a css is not taken offline while tasks can still
   reference it. Disabling a controller through cgroup.subtree_control
   still had the same problem. This reworks the deferral from per-cgroup
   to per-css so that path is covered too.
 
 - New RDMA controller monitoring files: rdma.peak for per-device peak
   usage and rdma.events / rdma.events.local for resource-limit
   exhaustion. The max-limit parser was rewritten, fixing two input
   parsing bugs.
 
 - cpuset: fix a sched-domain leak on the domain-rebuild failure path and
   skip a redundant hardwall ancestor scan on v2.
 
 - Misc: pair the remaining lockless cgroup.max.* reads with WRITE_ONCE,
   assorted selftest robustness fixes, and doc path corrections.
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Merge tag 'cgroup-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup updates from Tejun Heo:

 - Last cycle deferred css teardown on cgroup removal until the cgroup
   depopulated, so a css is not taken offline while tasks can still
   reference it. Disabling a controller through cgroup.subtree_control
   still had the same problem. This reworks the deferral from per-cgroup
   to per-css so that path is covered too.

 - New RDMA controller monitoring files: rdma.peak for per-device peak
   usage and rdma.events / rdma.events.local for resource-limit
   exhaustion. The max-limit parser was rewritten, fixing two input
   parsing bugs.

 - cpuset: fix a sched-domain leak on the domain-rebuild failure path
   and skip a redundant hardwall ancestor scan on v2.

 - Misc: pair the remaining lockless cgroup.max.* reads with WRITE_ONCE,
   assorted selftest robustness fixes, and doc path corrections.

* tag 'cgroup-for-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup: (22 commits)
  cgroup: Migrate tasks to the root css when a controller is rebound
  docs: cgroup: Fix stale source file paths
  cgroup/cpuset: Free sched domains on rebuild guard failure
  cgroup: pair max limit READ_ONCE() with WRITE_ONCE()
  selftests/cgroup: enable memory controller in hugetlb memcg test
  cgroup/rdma: Drop unnecessary READ_ONCE() on event counters
  cgroup: Defer kill_css_finish() in cgroup_apply_control_disable()
  cgroup: Add per-subsys-css kill_css_finish deferral
  cgroup: Move populated counters to cgroup_subsys_state
  cgroup: Annotate unlocked nr_populated_* accesses with READ_ONCE/WRITE_ONCE
  cgroup: Inline cgroup_has_tasks() in cgroup.h
  cgroup/rdma: document rdma.peak, rdma.events and rdma.events.local
  cgroup/rdma: add rdma.events.local for per-cgroup allocation failure attribution
  cgroup/rdma: add rdma.events to track resource limit exhaustion
  cgroup/rdma: add rdma.peak for per-device peak usage tracking
  selftests/cgroup: check malloc return value in alloc_anon functions
  cgroup/cpuset: Skip hardwall ancestor scan in cpuset v2 in cpuset_current_node_allowed()
  selftests/cgroup: fix misleading debug message in test_cgfreezer_time_child
  selftests/cgroup: fix child process escaping to parent cleanup in test_cpucg_nice
  selftests/cgroup: Add NULL check after malloc in cgroup_util.c
  ...
2026-06-17 12:03:56 +01:00
Linus Torvalds
b85966adbf Networking changes for 7.2.
Core & protocols
 ----------------
 
  - Work on removing rtnl_lock protection throughout the stack continues.
    In this chapter:
     - don't use rtnl_lock for IPv6 multicast routing configuration
     - don't take rtnl_lock in ethtool for modern drivers
     - prepare Qdisc dump callbacks for rtnl_lock removal
 
  - Support dumping just ifindex + name of all interfaces, under RCU.
    It's a common operation for Netlink CLI tools (when translating
    names to ifindexes) and previously required full rtnl_lock.
 
  - Support dumping qdiscs and page pools for a specific netdev. Even tho
    user space wants a dump of all netdevs, most of the time, the OOO
    programming model results in repeating the dump for each netdev.
    Which, in absence of a cache, leads to a O(n^2) behavior.
 
  - Flush nexthops once on multi-nexthop removal (e.g. when device goes
    down), another O(n^2) -> O(n) improvement.
 
  - Rehash locally generated traffic to a different nexthop on retransmit
    timeout.
 
  - Honor oif when choosing nexthop for locally generated IPv6 traffic.
 
  - Convert TCP Auth Option to crypto library, and drop non-RFC algos.
 
  - Increase subflow limits in MPTCP to 64 and endpoint limit to 256.
 
  - Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
    to selectively skip reporting of the standard TCP Timestamp option,
    because they won't fit into the header space together (12 + 30 > 40).
 
  - Support using bridge neighbor suppression, Duplicate Address
    Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
    deployments, e.g. VXLAN fabrics (IPv4 and IPv6).
 
  - Improve link state reporting for upper netdevs (e.g. macvlan) over
    tunnel devices (again, mostly for EVPN deployments).
 
  - Support binding GENEVE tunnels to a local address.
 
  - Speed up UDP tunnel destruction (remove one synchronize_rcu()).
 
  - Support exponential field encoding in multicast (IGMPv3 and MLDv2).
 
  - Support attaching PSP crypto offload to containers (veth, netkit).
 
  - Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
    migrating individual IPsec SAs independently of their policies.
    The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
    migration, lacks SPI for unique SA identification, and cannot express
    reqid changes or migrate Transport mode selectors. The new interface
    identifies the SA via SPI and mark, supports reqid changes, address
    family changes, encap removal, and uses an atomic create+install
    flow under x->lock to prevent SN/IV reuse during AEAD SA migration.
 
  - Implement GRO/GSO support for PPPoE.
 
  - Convert sockopt callbacks in a number of protocols to iov_iter.
 
 Cross-tree stuff
 ----------------
 
  - Remove support for Crypto TFM cloning (unblocked after the TCP Auth
    Option rework). This feature regressed performance for all crypto API
    users, since it changed crypto transformation objects into reference-
    -counted objects.
 
  - Add FCrypt-PCBC implementation to rxrpc and remove it from the global
    crypto API as obsolete and insecure.
 
 Wireless
 --------
 
  - Major rework of station bandwidth handling, fixing issues with lower
    capability than AP.
 
  - Cleanups for EMLSR spec issues (drafts differed).
 
  - More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
    schedule improvements, multi-station etc.)
 
  - Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
    (e.g. non-primary channel access, UHR DBE support).
 
  - Fine Timing Measurement ranging (i.e. distance measurement) APIs.
 
 Netfilter
 ---------
 
  - Use per-rule hash initval in nf_conncount. This avoids unnecessary
    lock contention with short keys (e.g. conntrack zones) in different
    namespaces.
 
  - Various safety improvements, both in packet parsing and object
    lifetimes. Notably add refcounts to conntrack timeout policy.
 
 Deletions
 ---------
 
  - Remove TLS + sockmap integration. TLS wants to pin user pages
    to avoid a copy, and sockmap wants to write to the input stream.
    More work on this integration is clearly needed, and we can't find
    any users (original author admitted that they never deployed it).
 
  - Remove support for TLS offload with TCP Offload Engine (the far
    more common opportunistic offload is retained). The locking looks
    unfixable (driver sleeps under TCP spin locks) and people from
    the vendor that added this are AWOL.
 
  - Remove more ATM code, trying to leave behind only what PPPoATM needs,
    AAL5 and br2684 with permanent circuits.
 
  - Remove AppleTalk. Let it join hamradio in our out of tree protocol
    graveyard, I mean, repository.
 
  - Disable 32-bit x_tables compatibility (32bit binaries on 64bit kernel)
    interface in user namespaces. To be deleted completely, soon.
 
  - Remove 5/10 MHz support from cfg80211/mac80211.
 
 Drivers
 -------
 
  - Software:
    - Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit).
    - bonding: add knob to strictly follow 802.3ad for link state.
 
  - New drivers:
    - Alibaba Elastic Ethernet Adaptor (cloud vNIC).
    - NXP NETC switch within i.MX94.
 
  - DPLL:
    - Add operational state to pins (implement in zl3073x).
    - Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).
 
  - Ethernet high-speed NICs:
    - Huawei (hinic3):
      - enhance tc flow offload support with queue selection, tunnels
    - nVidia/Mellanox:
      - avoid over-copying payload to the skb's linear part (up to 60%
        win for LRO on slow CPUs like ARM64 V2)
      - expose more per-queue stats over the standard API
      - support additional, unprivileged PFs in the DPU configuration
      - support Socket Direct (multi-PF) with switchdev offloads
      - add a pool / frag allocator for DMA mapped buffers for control
        objects, save memory on systems with 64kB page size
      - take advantage of the ability to dynamically change RSS table
        size, even when table is configured by the user
      - increase the max RSS table size for even traffic distribution
 
  - Ethernet NICs:
    - Marvell/Aquantia:
      - AQC113 PTP support
    - Realtek USB (r8152):
      - support 10Gbit Link Speeds and Energy-Efficient Ethernet (EEE)
      - support firmware loaded (for RTL8157/RTL8159)
      - support for the RTL8159
    - Intel (ixgbe):
      - support Energy-Efficient Ethernet (EEE) on E610 devices
 
  - Ethernet switches:
    - Airoha:
      - support multiple netdevs on a single GDM block / port
    - Marvell (mv88e6xxx):
      - support SERDES of mv88e6321
    - Microchip (ksz8/9):
      - rework the driver callbacks to remove one indirection layer
    - Motorcomm (yt921x):
      - support port rate policing
      - support TBF qdisc offload
      - support ACL/flower offload
    - nVidia/Mellanox:
      - expose per-PG rx_discards
    - Realtek:
      - rtl8365mb: bridge offloading and VLAN support
 
  - Ethernet PHYs:
    - Airoha:
      - support Airoha AN8801R Gigabit PHYs.
    - Micrel:
      - implement 3 low-loss cable tunables
    - Realtek:
      - support MDI swapping for RTL8226-CG
      - support MDIO for RTL931x
    - Qualcomm:
      - at803x: Rx and Tx clock management for IPQ5018 PHY
    - Motorcomm:
      - support YT8522 100M RMII PHY
      - set drive strength in YT8531s RGMII
    - TI:
      - dp83822: add optional external PHY clock
 
  - Bluetooth:
    - hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
    - SMP: use AES-CMAC library API
    - Intel:
      - support Product level reset
      - support smart trigger dump
    - Mediatek:
      - add event filter to filter specific event
    - Realtek:
      - fix RTL8761B/BU broken LE extended scan
 
  - WiFi:
    - Broadcom (b43):
      - new support for a 11n device
    - MediaTek (mt76):
      - support mt7927
      - mt792x: broken usb transport detection
      - mt7921: regulatory improvements
    - Qualcomm (ath9k):
      - GPIO interface improvements
    - Qualcomm (ath12k):
      - WDS support
      - replace dynamic memory allocation in WMI Rx path
      - thermal throttling/cooling device support
      - 6 GHz incumbent interference detection
      - channel 177 in 5 GHz
    - Realtek (rt89):
      - RTL8922AU support
      - USB 3 mode switch for performance
      - better monitor radiotap support
      - RTL8922DE preparations
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core & protocols:

   - Work on removing rtnl_lock protection throughout the stack
     continues. In this chapter:
       - don't use rtnl_lock for IPv6 multicast routing configuration
       - don't take rtnl_lock in ethtool for modern drivers
       - prepare Qdisc dump callbacks for rtnl_lock removal

   - Support dumping just ifindex + name of all interfaces, under RCU.
     It's a common operation for Netlink CLI tools (when translating
     names to ifindexes) and previously required full rtnl_lock.

   - Support dumping qdiscs and page pools for a specific netdev. Even
     tho user space wants a dump of all netdevs, most of the time, the
     OOO programming model results in repeating the dump for each
     netdev. Which, in absence of a cache, leads to a O(n^2) behavior.

   - Flush nexthops once on multi-nexthop removal (e.g. when device goes
     down), another O(n^2) -> O(n) improvement.

   - Rehash locally generated traffic to a different nexthop on
     retransmit timeout.

   - Honor oif when choosing nexthop for locally generated IPv6 traffic.

   - Convert TCP Auth Option to crypto library, and drop non-RFC algos.

   - Increase subflow limits in MPTCP to 64 and endpoint limit to 256.

   - Support MPTCP signaling of IPv6 address + port (ADD_ADDR). We need
     to selectively skip reporting of the standard TCP Timestamp option,
     because they won't fit into the header space together (12 + 30 >
     40).

   - Support using bridge neighbor suppression, Duplicate Address
     Detection, Gratuitous ARP and unsolicited NA forwarding - in EVPN
     deployments, e.g. VXLAN fabrics (IPv4 and IPv6).

   - Improve link state reporting for upper netdevs (e.g. macvlan) over
     tunnel devices (again, mostly for EVPN deployments).

   - Support binding GENEVE tunnels to a local address.

   - Speed up UDP tunnel destruction (remove one synchronize_rcu()).

   - Support exponential field encoding in multicast (IGMPv3 and MLDv2).

   - Support attaching PSP crypto offload to containers (veth, netkit).

   - Add a new IPSec Netlink message XFRM_MSG_MIGRATE_STATE that allows
     migrating individual IPsec SAs independently of their policies.

     The existing XFRM_MSG_MIGRATE is tightly coupled to policy+SA
     migration, lacks SPI for unique SA identification, and cannot
     express reqid changes or migrate Transport mode selectors.

     The new interface identifies the SA via SPI and mark, supports
     reqid changes, address family changes, encap removal, and uses an
     atomic create+install flow under x->lock to prevent SN/IV reuse
     during AEAD SA migration.

   - Implement GRO/GSO support for PPPoE.

   - Convert sockopt callbacks in a number of protocols to iov_iter.

  Cross-tree stuff:

   - Remove support for Crypto TFM cloning (unblocked after the TCP Auth
     Option rework). This feature regressed performance for all crypto
     API users, since it changed crypto transformation objects into
     reference-counted objects.

   - Add FCrypt-PCBC implementation to rxrpc and remove it from the
     global crypto API as obsolete and insecure.

  Wireless:

   - Major rework of station bandwidth handling, fixing issues with
     lower capability than AP.

   - Cleanups for EMLSR spec issues (drafts differed).

   - More Neighbor Awareness Networking (Wi-Fi Aware) work (multicast,
     schedule improvements, multi-station etc.)

   - Some Ultra High Reliability (UHR) / IEEE 802.11bn (D1.4) work
     (e.g. non-primary channel access, UHR DBE support).

   - Fine Timing Measurement ranging (i.e. distance measurement) APIs.

  Netfilter:

   - Use per-rule hash initval in nf_conncount. This avoids unnecessary
     lock contention with short keys (e.g. conntrack zones) in different
     namespaces.

   - Various safety improvements, both in packet parsing and object
     lifetimes. Notably add refcounts to conntrack timeout policy.

  Deletions:

   - Remove TLS + sockmap integration. TLS wants to pin user pages to
     avoid a copy, and sockmap wants to write to the input stream. More
     work on this integration is clearly needed, and we can't find any
     users (original author admitted that they never deployed it).

   - Remove support for TLS offload with TCP Offload Engine (the far
     more common opportunistic offload is retained). The locking looks
     unfixable (driver sleeps under TCP spin locks) and people from the
     vendor that added this are AWOL.

   - Remove more ATM code, trying to leave behind only what PPPoATM
     needs, AAL5 and br2684 with permanent circuits.

   - Remove AppleTalk. Let it join hamradio in our out of tree protocol
     graveyard, I mean, repository.

   - Disable 32-bit x_tables compatibility (32bit binaries on 64bit
     kernel) interface in user namespaces. To be deleted completely,
     soon.

   - Remove 5/10 MHz support from cfg80211/mac80211.

  Drivers:

   - Software:
       - Support DEVMEM/DMABUF Tx over NETMEM_TX_NO_DMA devices (netkit)
       - bonding: add knob to strictly follow 802.3ad for link state

   - New drivers:
       - Alibaba Elastic Ethernet Adaptor (cloud vNIC).
       - NXP NETC switch within i.MX94.

   - DPLL:
       - Add operational state to pins (implement in zl3073x).
       - Add generic DPLL type, for daisy-chaining DPLLs (implement in ice).

   - Ethernet high-speed NICs:
       - Huawei (hinic3):
           - enhance tc flow offload support with queue selection,
             tunnels
       - nVidia/Mellanox:
           - avoid over-copying payload to the skb's linear part (up to
             60% win for LRO on slow CPUs like ARM64 V2)
           - expose more per-queue stats over the standard API
           - support additional, unprivileged PFs in the DPU
             configuration
           - support Socket Direct (multi-PF) with switchdev offloads
           - add a pool / frag allocator for DMA mapped buffers for
             control objects, save memory on systems with 64kB page size
           - take advantage of the ability to dynamically change RSS
             table size, even when table is configured by the user
           - increase the max RSS table size for even traffic
             distribution

   - Ethernet NICs:
       - Marvell/Aquantia:
           - AQC113 PTP support
       - Realtek USB (r8152):
           - support 10Gbit Link Speeds and Energy-Efficient Ethernet
             (EEE)
           - support firmware loaded (for RTL8157/RTL8159)
           - support for the RTL8159
       - Intel (ixgbe):
           - support Energy-Efficient Ethernet (EEE) on E610 devices

   - Ethernet switches:
       - Airoha:
           - support multiple netdevs on a single GDM block / port
       - Marvell (mv88e6xxx):
           - support SERDES of mv88e6321
       - Microchip (ksz8/9):
           - rework the driver callbacks to remove one indirection layer
       - Motorcomm (yt921x):
           - support port rate policing
           - support TBF qdisc offload
           - support ACL/flower offload
       - nVidia/Mellanox:
           - expose per-PG rx_discards
       - Realtek:
           - rtl8365mb: bridge offloading and VLAN support

   - Ethernet PHYs:
       - Airoha:
           - support Airoha AN8801R Gigabit PHYs.
       - Micrel:
           - implement 3 low-loss cable tunables
       - Realtek:
           - support MDI swapping for RTL8226-CG
           - support MDIO for RTL931x
       - Qualcomm:
           - at803x: Rx and Tx clock management for IPQ5018 PHY
       - Motorcomm:
           - support YT8522 100M RMII PHY
           - set drive strength in YT8531s RGMII
       - TI:
           - dp83822: add optional external PHY clock

   - Bluetooth:
       - hci_sync: add support for HCI_LE_Set_Host_Feature [v2]
       - SMP: use AES-CMAC library API
       - Intel:
           - support Product level reset
           - support smart trigger dump
       - Mediatek:
           - add event filter to filter specific event
       - Realtek:
           - fix RTL8761B/BU broken LE extended scan

   - WiFi:
       - Broadcom (b43):
           - new support for a 11n device
       - MediaTek (mt76):
           - support mt7927
           - mt792x: broken usb transport detection
           - mt7921: regulatory improvements
       - Qualcomm (ath9k):
           - GPIO interface improvements
       - Qualcomm (ath12k):
           - WDS support
           - replace dynamic memory allocation in WMI Rx path
           - thermal throttling/cooling device support
           - 6 GHz incumbent interference detection
           - channel 177 in 5 GHz
       - Realtek (rt89):
           - RTL8922AU support
           - USB 3 mode switch for performance
           - better monitor radiotap support
           - RTL8922DE preparations"

* tag 'net-next-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1778 commits)
  ipv4: fib_rule: Move fib4_rules_exit() to ->exit().
  net: serialize netif_running() check in enqueue_to_backlog()
  net: skmsg: preserve sg.copy across SG transforms
  appletalk: move the protocol out of tree
  appletalk: stop storing per-interface state in struct net_device
  selftests/bpf: test that TLS crypto is rejected on a sockmap socket
  selftests/bpf: drop the unused kTLS program from test_sockmap
  selftests/bpf: remove sockmap + ktls tests
  tls: remove dead sockmap (psock) handling from the SW path
  tls: reject the combination of TLS and sockmap
  atm: remove orphaned uAPI for deleted drivers, protocols and SVCs
  atm: remove unused ATM PHY operations
  atm: remove the unused pre_send and send_bh device operations
  atm: remove the unused change_qos device operation
  atm: remove SVC socket support and the signaling daemon interface
  atm: remove the local ATM (NSAP) address registry
  atm: remove dead SONET PHY ioctls
  atm: remove the unused send_oam / push_oam callbacks
  atm: remove AAL3/4 transport support
  net: dsa: sja1105: fix lastused timestamp in flower stats
  ...
2026-06-17 08:17:00 +01:00
Jakub Kicinski
8a398a0c18 appletalk: move the protocol out of tree
AppleTalk has been removed in MacOS X 10.6 (Snow Leopard), in 2009,
according to Wikipedia. We recently got a burst of AI generated
fixes to this protocol which nobody is reviewing.

Let AppleTalk follow AX.25 and hamradio out of the Linux tree.
We we will maintain the code at: github.com/linux-netdev/mod-orphan
for anyone interested in playing with it.

Retain the uAPI for now. No strong reason, simply because I suspect
keeping it will be less controversial.

Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Link: https://patch.msgid.link/20260615222935.947233-3-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-16 14:37:06 -07:00
Linus Torvalds
b1cbabe84c - small cleanups in dm-vdo, dm-raid, dm-cache, dm-zoned-metadata
- rework of dm-ima
 
 - introduce dm-inlinecrypt
 
 - fix wrong return value in dm-ioctl
 
 - fix rcu stall when polling
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Merge tag 'for-7.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm

Pull device mapper updates from Mikulas Patocka:

 - small cleanups in dm-vdo, dm-raid, dm-cache, dm-zoned-metadata

 - rework of dm-ima

 - introduce dm-inlinecrypt

 - fix wrong return value in dm-ioctl

 - fix rcu stall when polling

* tag 'for-7.2/dm-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/device-mapper/linux-dm:
  dm-zoned-metadata: Use strscpy() to copy device name
  dm cache: make smq background work limit configurable
  dm-inlinecrypt: add support for hardware-wrapped keys
  dm: limit target bio polling to one shot
  dm-ioctl: report an error if a device has no table
  dm: add documentation for dm-inlinecrypt target
  dm-inlinecrypt: add target for inline block device encryption
  block: export blk-crypto symbols required by dm-inlinecrypt
  dm-ima: use active table's size if available
  dm-ima: Fail more gracefully in dm_ima_measure_on_*
  dm-ima: Handle race between rename and table swap
  dm-ima: Fix issues with dm_ima_measure_on_device_rename
  dm-ima: remove new_map from dm_ima_measure_on_device_clear
  dm-ima: Fix UAF errors and measuring incorrect context
  dm-ima: don't copy the active table to the inactive table
  dm-ima: Remove status_flags from dm_ima_measure_on_table_load()
  dm-ima: remove broken last_target_measured logic
  dm-ima: remove dm_ima_reset_data()
  dm-raid: only requeue bios when dm is suspending
  dm vdo: use get_random_u32() where appropriate
2026-06-16 13:20:54 +05:30
Linus Torvalds
a87bbc4578 Things have calmed down a bit on the docs front, with no earthshaking
changes this time around:
 
 - Ongoing work on the Japanese and Portuguese translations.
 
 - Better integration of the MAINTAINERS file into the rendered documents,
   including a search interface.
 
 - A seemingly infinite supply of fixes for typos, minor grammatical issues,
   and related problems that LLMs find with abandon.
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Merge tag 'docs-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux

Pull documentation updates from Jonathan Corbet:
 "Things have calmed down a bit on the docs front, with no earthshaking
  changes this time around:

   - Ongoing work on the Japanese and Portuguese translations

   - Better integration of the MAINTAINERS file into the rendered
     documents, including a search interface

   - A seemingly infinite supply of fixes for typos, minor grammatical
     issues, and related problems that LLMs find with abandon"

* tag 'docs-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/docs/linux: (93 commits)
  docs: pt_BR: Translate 3.Early-stage.rst into Portuguese
  docs: pt_BR: update "Purpose of Defconfigs" section in maintainer-soc.rst
  Documentation: bug-hunting.rst: fix grammar
  docs/ja_JP: translate submitting-patches.rst (interleaved-replies)
  docs: Fix minor grammatical error
  docs/{it_it,sp_SP,zh_CN,zh_TW}: update references to removed CONFIG_DEBUG_SLAB
  Documentation: process: fix brackets
  Documentation: arch: fix brackets
  docs/dyndbg: explain flags parse 1st
  docs/dyndbg: update examples \012 to \n
  docs: kernel-parameters: Fix stale sticore file paths
  docs: real-time: Fix duplicated sched(7) text
  docs: kgdb: Fix stale source file paths
  docs: sonypi: Fix stale header file path
  docs: kernel-parameters: Remove sa1100ir IrDA parameter
  iommu: Documentation: rearrange, update kernel-parameters
  docs: md: fix grammar in speed_limit description
  docs: changes.rst: restore pahole 1.26 minimum (regressed by sort)
  Documentation: Fix syntax of kmalloc_objs example in coding style doc
  docs: pt_BR: update maintainer-handbooks
  ...
2026-06-16 08:35:59 +05:30
Linus Torvalds
bd77e50c9a fbdev fixes & cleanups for 7.2-rc1:
Removal of drivers:
 - Hercules monochrome ISA graphics adapter driver [Ethan Nelson-Moore]
 - Hercules mdacon console driver [Ethan Nelson-Moore]
 
 Changes affecting many drivers at once:
 - possible memory leak fixes in various drivers [Abdun Nihaal]
 - many conversions to use strscpy() [David Laight]
 - Use named initializers in drivers [Uwe Kleine-König]
 
 Code fixes:
 - fbcon: don't suspend/resume when vc is graphics mode [Lu Yao]
 - modedb: fix a possible UAF in fb_find_mode() [Tuo Li]
 - modedb: Fix entry for 1920x1080-60 mode [Steffen Persvold]
 - arm: Export acorndata_8x8 font symbol for bootloader [Helge Deller]
 - omap2: fix use-after-free in omapfb_mmap [Hongling Zeng]
 
 Cleanups:
 - pxa168fb: use devm_ioremap_resource() [AlbertoArostegui]
 - provice helpers for fb_set_var() and fb_blank() and fbcon updates [Thomas Zimmermann]
 - fbcon: Use correct type for vc_resize() return value [Jiacheng Yu]
 - chipsfb: add missing MODULE_DESCRIPTION() macro [Rahman Mahmutović]
 - sunxvr2500: replace printk with device-aware logging functions [Rahman Mahmutović]
 - sm712: Fix operator precedence in big_swap macro [Li RongQing]
 - imxfb: Use of_device_get_match_data() [Rosen Penev]
 - atmel_lcdfb: Use of_device_get_match_data() [Rosen Penev]
 
 Documentation fixes:
 - grvga: Fix CLUT register address offset in comment [Eduardo Silva]
 - omap/dss: Fix stale modedb.c path [Costa Shulyupin]
 - correct CONFIG_FB_TILEBLITTING macro name in #endif comment [Ethan Nelson-Moore]
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Merge tag 'fbdev-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev

Pull fbdev updates from Helge Deller:
 "Beside the removal of the Hercules monochrome ISA graphics driver and
  the corresponding text console driver, there is just the typical
  maintanance with smaller driver fixes and cleanups:

  Removal of drivers:
   - Hercules monochrome ISA graphics adapter driver (Ethan Nelson-Moore)
   - Hercules mdacon console driver (Ethan Nelson-Moore)

  Changes affecting many drivers at once:
   - possible memory leak fixes in various drivers (Abdun Nihaal)
   - many conversions to use strscpy() (David Laight)
   - Use named initializers in drivers (Uwe Kleine-König)

  Code fixes:
   - fbcon: don't suspend/resume when vc is graphics mode (Lu Yao)
   - modedb: fix a possible UAF in fb_find_mode() (Tuo Li)
   - modedb: Fix entry for 1920x1080-60 mode (Steffen Persvold)
   - arm: Export acorndata_8x8 font symbol for bootloader (Helge Deller)
   - omap2: fix use-after-free in omapfb_mmap (Hongling Zeng)

  Cleanups:
   - pxa168fb: use devm_ioremap_resource() (Alberto Arostegui)
   - provice helpers for fb_set_var() and fb_blank() and fbcon updates
     (Thomas Zimmermann)
   - fbcon: Use correct type for vc_resize() return value (Jiacheng Yu)
   - chipsfb: add missing MODULE_DESCRIPTION() macro (Rahman Mahmutović)
   - sunxvr2500: replace printk with device-aware logging functions
     (Rahman Mahmutović)
   - sm712: Fix operator precedence in big_swap macro (Li RongQing)
   - imxfb: Use of_device_get_match_data() (Rosen Penev)
   - atmel_lcdfb: Use of_device_get_match_data() (Rosen Penev)

  Documentation fixes:
   - grvga: Fix CLUT register address offset in comment (Eduardo Silva)
   - omap/dss: Fix stale modedb.c path (Costa Shulyupin)
   - correct CONFIG_FB_TILEBLITTING macro name in #endif comment (Ethan
     Nelson-Moore)"

* tag 'fbdev-for-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/linux-fbdev: (43 commits)
  fbdev: modedb: Fix misaligned fields in the 1920x1080-60 mode
  fbdev: modedb: fix a possible UAF in fb_find_mode()
  fbdev: s3fb: Use strscpy() to copy strings into arrays
  fbdev: sm501fb: Fix buffer errors in OF binding code
  fbcon: correct CONFIG_FB_TILEBLITTING macro name in #endif comment
  fbdev/arm: Export acorndata_8x8 font symbol for bootloader
  fbdev: mmpfb: Use strscpy() to copy device name
  fbdev: sisfb: Replace strlen() strcpy() pair with strscpy()
  fbdev: rivafb: Use strscpy() to copy device name
  fbdev: cyber2000fb: Use strscpy() to copy device name
  fbdev: atmel_lcdfb: Use strscpy() to copy device name
  fbdev: Do not export fbcon from fbdev
  fbdev: Wrap fbcon updates from vga-switcheroo in helper
  fbdev: Wrap user-invoked calls to fb_blank() in helper
  fbdev: Wrap user-invoked calls to fb_set_var() in helper
  fbdev: omap2: fix use-after-free in omapfb_mmap
  docs: omap/dss: Fix stale modedb.c path
  fbdev: pxa168fb: use devm_ioremap_resource() for MMIO
  fbdev: grvga: Fix CLUT register address offset in comment
  fbdev: sunxvr2500: replace printk with device-aware logging functions
  ...
2026-06-16 08:28:41 +05:30
Jarkko Sakkinen
4d05e948ce KEYS: trusted: Debugging as a feature
TPM_DEBUG, and other similar flags, are a non-standard way to specify a
feature in Linux kernel. Introduce CONFIG_TRUSTED_KEYS_DEBUG for trusted
keys, and use it to replace these ad-hoc feature flags.

Given that trusted keys debug dumps can contain sensitive data, harden the
feature as follows:

1. In the Kconfig description postulate that pr_debug() statements must be
   used.
2. Use pr_debug() statements in TPM 1.x driver to print the protocol dump.
3. Require trusted.debug=1 on the kernel command line (default: 0) to
   activate dumps at runtime, even when CONFIG_TRUSTED_KEYS_DEBUG=y.

Traces, when actually needed, can be easily enabled by providing
trusted.dyndbg='+p' and trusted.debug=1 in the kernel command-line.

Reported-by: Nayna Jain <nayna@linux.ibm.com>
Closes: https://lore.kernel.org/all/7f8b8478-5cd8-4d97-bfd0-341fd5cf10f9@linux.ibm.com/
Reviewed-by: Nayna Jain <nayna@linux.ibm.com>
Tested-by: Srish Srinivasan <ssrish@linux.ibm.com>
Signed-off-by: Jarkko Sakkinen <jarkko@kernel.org>
2026-06-15 15:19:12 +03:00
Linus Torvalds
ff5ccdb8d5 x86/cpu updates for v7.2:
- CPUID API updates (Ahmed S. Darwish):
 
    - Introduce a centralized CPUID parser
    - Introduce a centralized CPUID data model
    - Introduce <asm/cpuid/leaf_types.h>
    - Rename cpuid_leaf()/cpuid_subleaf() APIs
    - treewide: Explicitly include the x86 CPUID headers
 
  - Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)
 
  - Continued removal of pre-i586 support and related
    simplifications (Ingo Molnar)
 
  - Add Intel CPU model number for rugged Panther Lake
    (Tony Luck)
 
  - Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao,
    Lukas Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip

Pull x86 cpuid updates from Ingo Molnar:

 - CPUID API updates (Ahmed S. Darwish):
    - Introduce a centralized CPUID parser
    - Introduce a centralized CPUID data model
    - Introduce <asm/cpuid/leaf_types.h>
    - Rename cpuid_leaf()/cpuid_subleaf() APIs
    - treewide: Explicitly include the x86 CPUID headers

 - Update to x86-cpuid-db v3.1 (Maciej Wieczor-Retman)

 - Continued removal of pre-i586 support and related simplifications
   (Ingo Molnar)

 - Add Intel CPU model number for rugged Panther Lake (Tony Luck)

 - Misc fixes, updates and cleanups by Arnd Bergmann, Chao Gao, Lukas
   Bulwahn, Sohil Mehta, Maciej Wieczor-Retman.

* tag 'x86-cpu-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (25 commits)
  x86/cpu: Make CONFIG_X86_CX8 unconditional
  x86/cpu: Remove unused !CONFIG_X86_TSC code
  x86/cpuid: Update bitfields to x86-cpuid-db v3.1
  tools/x86/kcpuid: Update bitfields to x86-cpuid-db v3.1
  x86/cpu: Make CONFIG_X86_TSC unconditional
  MAINTAINERS: Drop obsolete FPU EMULATOR section
  x86/cpu: Fix a F00F bug warning and clean up surrounding code
  x86/cpu: Add Intel CPU model number for rugged Panther Lake
  x86/cpuid: Introduce a centralized CPUID parser
  x86/cpu: Introduce a centralized CPUID data model
  x86/cpuid: Introduce <asm/cpuid/leaf_types.h>
  x86/cpuid: Rename cpuid_leaf()/cpuid_subleaf() APIs
  x86/cpu: Do not include the CPUID API header in asm/processor.h
  Documentation: core-api/cpu_hotplug: Remove stale cpu0_hotplug docs
  x86/cpu, cpufreq: Remove AMD ELAN support
  x86/fpu: Remove the math-emu/ FPU emulation library
  x86/fpu: Remove the 'no387' boot option
  x86/fpu: Remove MATH_EMULATION and related glue code
  treewide: Explicitly include the x86 CPUID headers
  x86/cpu: Remove the CONFIG_X86_INVD_BUG quirk
  ...
2026-06-15 15:25:17 +05:30
Linus Torvalds
2cbf335f8c Scheduler updates for v7.2:
SMP load-balancing updates:
 
  - A large series to introduce infrastructure for cache-aware load
    balancing, with the goal of co-locating tasks that share data
    within the same Last Level Cache (LLC) domain. By improving cache
    locality, the scheduler can reduce cache bouncing and cache misses,
    ultimately improving data access efficiency.
 
    Implemented by Chen Yu and Tim Chen, based on early prototype work
    by Peter Zijlstra, with fixes by Jianyong Wu, Peter Zijlstra and
    Shrikanth Hegde.
 
  - A series to simplify CONFIG_SCHED_SMT ifdef usage (Shrikanth Hegde)
 
 Fair scheduler updates:
 
  - A series to improve SD_ASYM_CPUCAPACITY scheduling by introducing
    SMT awareness (Andrea Righi, K Prateek Nayak)
 
  - A series to optimize cfs_rq and sched_entity allocation for
    better data locality (Zecheng Li)
 
  - A preparatory series to change fair/cgroup scheduling to a single
    runqueue, without the final change (Peter Zijlstra)
 
  - Auto-manage ext/fair dl_server bandwidth (Andrea Righi)
 
  - Fix cpu_util runnable_avg arithmetic (Hongyan Xia)
 
  - Optimize update_tg_load_avg()'s rate-limiting code
    (Rik van Riel)
 
  - Allow account_cfs_rq_runtime() to throttle current hierarchy
    (K Prateek Nayak)
 
  - Update util_est after updating util_avg during dequeue, to fix
    the util signal update logic, which reduces signal noise
    (Vincent Guittot)
 
 Scheduler topology updates:
 
  - Allow multiple domains to claim sched_domain_shared (K Prateek Nayak)
 
  - Add parameter to split LLC (Peter Zijlstra)
 
 Core scheduler updates:
 
  - Use trace_call__<tp>() to save a static branch (Gabriele Monaco)
 
 Scheduler statistics updates:
 
  - Drop now-stale mul_u64_u64_div_u64() cputime over-approximation guard
    (Nicolas Pitre)
 
 Deadline scheduler updates:
 
  - Reject debugfs dl_server writes for offline CPUs (Andrea Righi)
 
  - Fix replenishment logic for non-deferred servers
    (Yuri Andriaccio)
 
 RT scheduling updates:
 
  - Turn RT_PUSH_IPI default off for non PREEMPT_RT (Steven Rostedt)
 
  - Update default bandwidth for real-time tasks to 1.0
    (Yuri Andriaccio)
 
 Proxy scheduling updates:
 
  - A series to implement Optimized Donor Migration for Proxy Execution
    (John Stultz, Peter Zijlstra)
 
  - Various proxy scheduling cleanups and fixes
    (Peter Zijlstra, K Prateek Nayak)
 
 Misc fixes, improvements and cleanups by Aaron Lu, Andrea Righi,
 Zenghui Yu, Chen Yu, Guanyou.Chen, John Stultz, Shrikanth Hegde,
 Peter Zijlstra, Liang Luo and Yiyang Chen.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip

Pull scheduler updates from Ingo Molnar:
 "SMP load-balancing updates:

   - A large series to introduce infrastructure for cache-aware load
     balancing, with the goal of co-locating tasks that share data
     within the same Last Level Cache (LLC) domain. By improving cache
     locality, the scheduler can reduce cache bouncing and cache misses,
     ultimately improving data access efficiency.

     Implemented by Chen Yu and Tim Chen, based on early prototype work
     by Peter Zijlstra, with fixes by Jianyong Wu, Peter Zijlstra and
     Shrikanth Hegde.

   - A series to simplify CONFIG_SCHED_SMT ifdef usage (Shrikanth Hegde)

  Fair scheduler updates:

   - A series to improve SD_ASYM_CPUCAPACITY scheduling by introducing
     SMT awareness (Andrea Righi, K Prateek Nayak)

   - A series to optimize cfs_rq and sched_entity allocation for better
     data locality (Zecheng Li)

   - A preparatory series to change fair/cgroup scheduling to a single
     runqueue, without the final change (Peter Zijlstra)

   - Auto-manage ext/fair dl_server bandwidth (Andrea Righi)

   - Fix cpu_util runnable_avg arithmetic (Hongyan Xia)

   - Optimize update_tg_load_avg()'s rate-limiting code (Rik van Riel)

   - Allow account_cfs_rq_runtime() to throttle current hierarchy
     (K Prateek Nayak)

   - Update util_est after updating util_avg during dequeue, to fix the
     util signal update logic, which reduces signal noise (Vincent
     Guittot)

  Scheduler topology updates:

   - Allow multiple domains to claim sched_domain_shared (K Prateek
     Nayak)

   - Add parameter to split LLC (Peter Zijlstra)

  Core scheduler updates:

   - Use trace_call__<tp>() to save a static branch (Gabriele Monaco)

  Scheduler statistics updates:

   - Drop now-stale mul_u64_u64_div_u64() cputime over-approximation
     guard (Nicolas Pitre)

  Deadline scheduler updates:

   - Reject debugfs dl_server writes for offline CPUs (Andrea Righi)

   - Fix replenishment logic for non-deferred servers (Yuri Andriaccio)

  RT scheduling updates:

   - Turn RT_PUSH_IPI default off for non PREEMPT_RT (Steven Rostedt)

   - Update default bandwidth for real-time tasks to 1.0 (Yuri
     Andriaccio)

  Proxy scheduling updates:

   - A series to implement Optimized Donor Migration for Proxy Execution
     (John Stultz, Peter Zijlstra)

   - Various proxy scheduling cleanups and fixes (Peter Zijlstra,
     K Prateek Nayak)

  Misc fixes, improvements and cleanups by Aaron Lu, Andrea Righi,
  Zenghui Yu, Chen Yu, Guanyou.Chen, John Stultz, Shrikanth Hegde,
  Peter Zijlstra, Liang Luo and Yiyang Chen"

* tag 'sched-core-2026-06-14' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (91 commits)
  sched/fair: Fix newidle vs core-sched
  sched/deadline: Use task_on_rq_migrating() helper
  sched/core: Combine separate 'else' and 'if' statements
  sched/fair: Fix cpu_util runnable_avg arithmetic
  sched/fair: Unify cfs_rq throttling via account_cfs_rq_runtime()
  sched/fair: Move the throttled tasks to a local list in tg_unthrottle_up()
  sched/fair: Call update_curr() before unthrottling the hierarchy
  sched/fair: Use throttled_csd_list for local unthrottle
  sched/fair: Convert cfs bandwidth throttling to use guards
  sched/fair: Allocate cfs_tg_state with percpu allocator
  sched/fair: Remove task_group->se pointer array
  sched/fair: Co-locate cfs_rq and sched_entity in cfs_tg_state
  sched: restore timer_slack_ns when resetting RT policy on fork
  MAINTAINERS: Fix spelling mistake in Peter's name
  sched: Simplify ttwu_runnable()
  sched/proxy: Remove superfluous clear_task_blocked_in()
  sched/proxy: Remove PROXY_WAKING
  sched/proxy: Switch proxy to use p->is_blocked
  sched/proxy: Only return migrate when needed
  sched: Be more strict about p->is_blocked
  ...
2026-06-15 14:50:18 +05:30
Linus Torvalds
36808d5e98 Driver core changes for 7.2-rc1
- deferred probe:
   - Fix race where deferred probe timeout work could be permanently
     canceled by using mod_delayed_work()
   - Fix missing jiffies conversion in deferred_probe_extend_timeout()
   - Guard timeout extension with delayed_work_pending() to prevent
     premature firing
   - Use system_percpu_wq instead of the deprecated system_wq
   - Update deferred_probe_timeout documentation
 
 - device:
   - Replace direct struct device bitfield access (can_match, dma_iommu,
     dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
     of_node_reused, offline, offline_disabled) with flag-based
     accessors using bit operations
   - Reject devices with unregistered buses
   - Delete unused DEVICE_ATTR_PREALLOC()
   - Add low-level device attribute macros with const show/store
     callbacks, allowing device attributes to reside in read-only memory
   - Move core device attributes to read-only memory
   - Constify group array pointers in driver_add_groups() /
     driver_remove_groups(), struct bus_type, and struct device_driver
 
 - device property:
   - Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
   - Initialize all fields of fwnode_handle in fwnode_init()
   - Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
   - Allow passing struct software_node_ref_args pointers directly to
     PROPERTY_ENTRY_REF()
 
 - driver_override:
   - Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
     infrastructure, fixing a UAF from unsynchronized access to
     driver_override in bus match() callbacks
   - Remove the now-unused driver_set_override()
 
 - firmware loader:
   - Fix recursive lock deadlock in device_cache_fw_images() when async
     work falls back to synchronous execution
   - Fix device reference leak in firmware_upload_register()
 
 - platform:
   - Pass KBUILD_MODNAME through the platform driver registration macro
     to create module symlinks in sysfs for built-in drivers; move
     module_kset initialization to a pure_initcall and tegra cbb
     registration to core_initcall to ensure correct ordering
   - Pass THIS_MODULE implicitly through a coresight_init_driver() macro
 
 - sysfs:
   - Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
     WARN
   - Add return value clamping to sysfs_kf_read()
 
 - Rust:
   - ACPI:
     - Fix missing match data for PRP0001 by exporting
       acpi_of_match_device()
 
   - Auxiliary:
     - Replace drvdata() with dedicated registration data on
       auxiliary_device. drvdata() exposed the driver's bus device
       private data beyond the driver's own scope, creating ordering
       constraints and forcing the data to outlive all registrations
       that access it. Registration data is instead scoped structurally
       to the Registration object, making lifecycle ordering enforced
       by construction rather than convention.
 
   - Rust-native device driver lifetimes (HRT):
     - Allow Rust device drivers to carry a lifetime parameter on their
       bus device private data, tied to the device binding scope -- the
       interval during which a bus device is bound to a driver. Device
       resources like pci::Bar<'a> and IoMem<'a> can be stored directly
       in the driver's bus device private data with a lifetime bounded
       by the binding scope, so the compiler enforces at build time that
       they do not outlive the binding. This removes Devres indirection
       from every access site and eliminates try_access() failure paths
       in destructors.
 
       Bus driver traits use a Generic Associated Type (GAT)
       Data<'bound> to introduce the lifetime on the private data,
       rather than parameterizing the Driver trait itself. Auxiliary
       registration data, where the lifetime is not introduced by a
       trait callback but must be threaded through Registration, uses
       the ForLt trait (a type-level abstraction for types generic over
       a lifetime).
 
 - Misc:
   - Fix DT overlayed devices not probing by reverting the broken
     treewide overlay fix and re-running fw_devlink consumer pickup when
     an overlay is applied to a bound device
   - Use root_device_register() for faux bus root device; add sanity
     check for failed bus init
   - Fix dev_has_sync_state() data race with READ_ONCE() and move it to
     base.h
   - Avoid spurious device_links warning when removing a device while
     its supplier is unbinding
   - Switch ISA bus to dynamic root device
   - Fix suspicious RCU usage in kernfs_put()
   - Remove devcoredump exit callback
   - Constify devfreq_event_class
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Merge tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core

Pull driver core updates from Danilo Krummrich:
 "Deferred probe:
   - Fix race where deferred probe timeout work could be permanently
     canceled by using mod_delayed_work()
   - Fix missing jiffies conversion in deferred_probe_extend_timeout()
   - Guard timeout extension with delayed_work_pending() to prevent
     premature firing
   - Use system_percpu_wq instead of the deprecated system_wq
   - Update deferred_probe_timeout documentation

  device:
   - Replace direct struct device bitfield access (can_match, dma_iommu,
     dma_skip_sync, dma_ops_bypass, state_synced, dma_coherent,
     of_node_reused, offline, offline_disabled) with flag-based
     accessors using bit operations
   - Reject devices with unregistered buses
   - Delete unused DEVICE_ATTR_PREALLOC()
   - Add low-level device attribute macros with const show/store
     callbacks, allowing device attributes to reside in read-only memory
   - Move core device attributes to read-only memory
   - Constify group array pointers in driver_add_groups() /
     driver_remove_groups(), struct bus_type, and struct device_driver

  device property:
   - Fix fwnode reference leak in fwnode_graph_get_endpoint_by_id()
   - Initialize all fields of fwnode_handle in fwnode_init()
   - Provide swnode_get()/swnode_put() wrappers around kobject_get/put()
   - Allow passing struct software_node_ref_args pointers directly to
     PROPERTY_ENTRY_REF()

  driver_override:
   - Migrate amba, cdx, vmbus, and rpmsg to the generic driver_override
     infrastructure, fixing a UAF from unsynchronized access to
     driver_override in bus match() callbacks
   - Remove the now-unused driver_set_override()

  firmware loader:
   - Fix recursive lock deadlock in device_cache_fw_images() when async
     work falls back to synchronous execution
   - Fix device reference leak in firmware_upload_register()

  platform:
   - Pass KBUILD_MODNAME through the platform driver registration macro
     to create module symlinks in sysfs for built-in drivers; move
     module_kset initialization to a pure_initcall and tegra cbb
     registration to core_initcall to ensure correct ordering
   - Pass THIS_MODULE implicitly through a coresight_init_driver() macro

  sysfs:
   - Upgrade OOB write detection in sysfs_kf_seq_show() from printk to
     WARN
   - Add return value clamping to sysfs_kf_read()

  Rust:
   - ACPI:

     Fix missing match data for PRP0001 by exporting
     acpi_of_match_device()

   - Auxiliary:

     Replace drvdata() with dedicated registration data on
     auxiliary_device. drvdata() exposed the driver's bus device private
     data beyond the driver's own scope, creating ordering constraints
     and forcing the data to outlive all registrations that access it.
     Registration data is instead scoped structurally to the
     Registration object, making lifecycle ordering enforced by
     construction rather than convention.

   - Rust-native device driver lifetimes (HRT):

     Allow Rust device drivers to carry a lifetime parameter on their
     bus device private data, tied to the device binding scope -- the
     interval during which a bus device is bound to a driver. Device
     resources like pci::Bar<'a> and IoMem<'a> can be stored directly in
     the driver's bus device private data with a lifetime bounded by the
     binding scope, so the compiler enforces at build time that they do
     not outlive the binding. This removes Devres indirection from every
     access site and eliminates try_access() failure paths in
     destructors.

     Bus driver traits use a Generic Associated Type (GAT) Data<'bound>
     to introduce the lifetime on the private data, rather than
     parameterizing the Driver trait itself. Auxiliary registration
     data, where the lifetime is not introduced by a trait callback but
     must be threaded through Registration, uses the ForLt trait (a
     type-level abstraction for types generic over a lifetime).

  Misc:
   - Fix DT overlayed devices not probing by reverting the broken
     treewide overlay fix and re-running fw_devlink consumer pickup when
     an overlay is applied to a bound device
   - Use root_device_register() for faux bus root device; add sanity
     check for failed bus init
   - Fix dev_has_sync_state() data race with READ_ONCE() and move it to
     base.h
   - Avoid spurious device_links warning when removing a device while
     its supplier is unbinding
   - Switch ISA bus to dynamic root device
   - Fix suspicious RCU usage in kernfs_put()
   - Remove devcoredump exit callback
   - Constify devfreq_event_class"

* tag 'driver-core-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/driver-core/driver-core: (81 commits)
  software node: allow passing reference args to PROPERTY_ENTRY_REF()
  driver core: platform: set mod_name in driver registration
  coresight: pass THIS_MODULE implicitly through a macro
  kernel: param: initialize module_kset in a pure_initcall
  soc/tegra: cbb: Move driver registration from pure_initcall to core_initcall
  firmware_loader: Fix recursive lock in device_cache_fw_images()
  driver core: Use system_percpu_wq instead of system_wq
  driver core: remove driver_set_override()
  rpmsg: use generic driver_override infrastructure
  Drivers: hv: vmbus: use generic driver_override infrastructure
  cdx: use generic driver_override infrastructure
  amba: use generic driver_override infrastructure
  rust: devres: add 'static bound to Devres<T>
  samples: rust: rust_driver_auxiliary: showcase lifetime-bound registration data
  rust: auxiliary: generalize Registration over ForLt
  rust: types: add `ForLt` trait for higher-ranked lifetime support
  gpu: nova-core: separate driver type from driver data
  samples: rust: rust_driver_pci: use HRT lifetime for Bar
  rust: io: make IoMem and ExclusiveIoMem lifetime-parameterized
  rust: pci: make Bar lifetime-parameterized
  ...
2026-06-15 12:41:17 +05:30
Linus Torvalds
5504ce0317 Power management updates for 7.2-rc1
- Fix a race between cpufreq suspend and CPU hotplug during system
    shutdown (Tianxiang Chen)
 
  - Avoid redundant target() calls for unchanged limits and fix a typo
    in a comment in the cpufreq core (Viresh Kumar)
 
  - Fix concurrency issues related to sysfs attributes access that affect
    cpufreq governors using the common governor code (Zhongqiu Han)
 
  - Simplify frequency limit handling in the conservative cpufreq
    governor (Lifeng Zheng)
 
  - Fix descriptions of the conservative governor freq_step tunable and
    the ondemand governor sampling_down_factor tunable in the cpufreq
    documentation (Pengjie Zhang)
 
  - Fix use-after-free and double free during _OSC evaluation in the PCC
    cpufreq driver (Yuho Choi)
 
  - Rework the handling of policy min and max frequency values in the
    cpufreq core to allow drivers to specify special initial values for
    the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
    Gondois)
 
  - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
    Imran Shaik).
 
  - Improve the warning message on HWP-disabled hybrid processors printed
    by the intel_pstate driver and sync policy->cur during CPU offline in
    it (Yohei Kojima, Fushuai Wang)
 
  - Drop cpufreq support for AMD Elan SC4* (Sean Young)
 
  - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep Kaur,
    Hans Zhang, Guangshuo Li, Xueqin Luo)
 
  - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
    Braha)
 
  - Allow the intel_idle driver to avoid exposing C-states that are
    redundant when PC6 is disabled (Artem Bityutskiy)
 
  - Fix memory leak and a potential race in the OPP core (Abdun Nihaal,
    Di Shen)
 
  - Mark Rust OPP methods as inline (Nicolás Antinori)
 
  - Fix misc device registration failure path in the PM QoS core (Yuho
    Choi)
 
  - Add sysctl interface for DPM watchdog timeouts (Tzung-Bi Shih)
 
  - Use complete() instead of complete_all() in device_pm_sleep_init() to
    avoid a false-positive warning from lockdep_assert_RT_in_threaded_ctx()
    when CONFIG_PROVE_RAW_LOCK_NESTING is enabled (Jiakai Xu)
 
  - Use a flexible array for CRC uncompressed buffers during hibernation
    image saving (Rosen Penev)
 
  - Make the LZ4 algorithm available for hibernation compression (l1rox3)
 
  - Move the preallocate_image() call during hibernation after the
    "prepare" phase of the "freeze" transition (Matthew Leach)
 
  - Fix a memory leak in rapl_add_package_cpuslocked() in the intel_rapl
    power capping driver and use sysfs_emit() in cpumask_show() in that
    driver (Sumeet Pawnikar, Yury Norov)
 
  - Fix ValueError when parsing incomplete device properties in the
    pm-graph utility (Gongwei Li)
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Merge tag 'pm-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm

Pull power management updates from Rafael Wysocki:
 "Over a half of the changes here are cpufreq updates that include core
  modifications, fixes of the old-style governors, new hardware support
  in drivers, assorded driver fixes and cleanups, and the removal of one
  driver (AMD Elan SC4*).

  Apart from that, the intel_idle driver will now be able to avoid
  exposing redundant C-states if PC6 is disabled and there are new
  sysctl knobs for device suspend/resume watchdog timeouts, hibernation
  gets built-in LZ4 support for image compression and there is the usual
  collection of assorted fixes and cleanups.

  Specifics:

   - Fix a race between cpufreq suspend and CPU hotplug during system
     shutdown (Tianxiang Chen)

   - Avoid redundant target() calls for unchanged limits and fix a typo
     in a comment in the cpufreq core (Viresh Kumar)

   - Fix concurrency issues related to sysfs attributes access that
     affect cpufreq governors using the common governor code (Zhongqiu
     Han)

   - Simplify frequency limit handling in the conservative cpufreq
     governor (Lifeng Zheng)

   - Fix descriptions of the conservative governor freq_step tunable and
     the ondemand governor sampling_down_factor tunable in the cpufreq
     documentation (Pengjie Zhang)

   - Fix use-after-free and double free during _OSC evaluation in the
     PCC cpufreq driver (Yuho Choi)

   - Rework the handling of policy min and max frequency values in the
     cpufreq core to allow drivers to specify special initial values for
     the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
     Gondois)

   - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
     Imran Shaik).

   - Improve the warning message on HWP-disabled hybrid processors
     printed by the intel_pstate driver and sync policy->cur during CPU
     offline in it (Yohei Kojima, Fushuai Wang)

   - Drop cpufreq support for AMD Elan SC4* (Sean Young)

   - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep
     Kaur, Hans Zhang, Guangshuo Li, Xueqin Luo)

   - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
     Braha)

   - Allow the intel_idle driver to avoid exposing C-states that are
     redundant when PC6 is disabled (Artem Bityutskiy)

   - Fix memory leak and a potential race in the OPP core (Abdun Nihaal,
     Di Shen)

   - Mark Rust OPP methods as inline (Nicolás Antinori)

   - Fix misc device registration failure path in the PM QoS core (Yuho
     Choi)

   - Add sysctl interface for DPM watchdog timeouts (Tzung-Bi Shih)

   - Use complete() instead of complete_all() in device_pm_sleep_init()
     to avoid a false-positive warning from lockdep_assert_RT_in_threaded_ctx()
     when CONFIG_PROVE_RAW_LOCK_NESTING is enabled (Jiakai Xu)

   - Use a flexible array for CRC uncompressed buffers during
     hibernation image saving (Rosen Penev)

   - Make the LZ4 algorithm available for hibernation compression
     (l1rox3)

   - Move the preallocate_image() call during hibernation after the
     "prepare" phase of the "freeze" transition (Matthew Leach)

   - Fix a memory leak in rapl_add_package_cpuslocked() in the
     intel_rapl power capping driver and use sysfs_emit() in
     cpumask_show() in that driver (Sumeet Pawnikar, Yury Norov)

   - Fix ValueError when parsing incomplete device properties in the
     pm-graph utility (Gongwei Li)"

* tag 'pm-7.2-rc1' of gitolite.kernel.org:pub/scm/linux/kernel/git/rafael/linux-pm: (40 commits)
  PM: dpm_watchdog: Add sysctl interface for DPM watchdog timeouts
  PM: QoS: Fix misc device registration unwind
  cpufreq: Use policy->min/max init as QoS request
  cpufreq: Remove driver default policy->min/max init
  cpufreq: Set default policy->min/max values for all drivers
  cpufreq: Extract cpufreq_policy_init_qos() function
  cpufreq: Documentation: fix conservative governor freq_step description
  cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
  cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC
  dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS
  powercap: intel_rapl: Use sysfs_emit() in cpumask_show()
  cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load
  cpufreq: governor: Fix data races on per-CPU idle/nice baselines
  PM: hibernate: Use flexible array for CRC uncompressed buffers
  powercap: intel_rapl: Fix memory leak in rapl_add_package_cpuslocked()
  PM: hibernate: make LZ4 available for hibernation compression
  PM: sleep: Use complete() in device_pm_sleep_init()
  opp: rust: mark OPP methods as inline
  cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs
  cpufreq: elanfreq: Drop support for AMD Elan SC4*
  ...
2026-06-15 11:37:18 +05:30
Linus Torvalds
b8b674748f RCU pull request for v7.2
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Merge tag 'rcu.release.v7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/rcu/linux

Pull RCU updates from Uladzislau Rezki:
 "Torture test updates:

   - Improve kvm-series.sh script by adding examples in its header
     comment

   - Lazy RCU is more fully tested now by replacing call_rcu_hurry()
     with call_rcu() and doing rcu_barrier() to motivate lazy callbacks
     during a stutter pause

   - Add more synonyms for the "--do-normal" group of torture.sh
     command-line arguments

  Misc changes:

   - Reduce stack usage of nocb_gp_wait() to address frame size warning
     when built with CONFIG_UBSAN_ALIGNMENT

   - The synchronize_rcu() call can detect the flood and latches a
     normal/default path temporary switching to wait_rcu_gp() path

   - Document using rcu_access_pointer() to fetch the old pointer for
     lockless cmpxchg() updates

   - Simplify some RCU code using clamp_val()

   - Fix a kerneldoc header comment typo in srcu_down_read_fast()"

* tag 'rcu.release.v7.2' of gitolite.kernel.org:pub/scm/linux/kernel/git/rcu/linux:
  rcu/nocb: reduce stack usage in nocb_gp_wait()
  rcu-tasks: Fix possible boot-time tests failed for the call_rcu_tasks()
  rcu: Latch normal synchronize_rcu() path on flood
  rcu: Document rcu_access_pointer() feeding into cmpxchg()
  rcu: Simplify param_set_next_fqs_jiffies() by applying clamp_val()
  rcu: Simplify rcu_do_batch() by applying clamp()
  checkpatch: Undeprecate rcu_read_lock_trace() and rcu_read_unlock_trace()
  srcu: Fix kerneldoc header comment typo in srcu_down_read_fast()
  torture: Allow "norm" abbreviation for "normal"
  torture: Improve kvm-series.sh header comment
  torture: Add torture_sched_set_normal() for user-specified nice values
  rcutorture: Fully test lazy RCU
2026-06-15 09:16:00 +05:30
Tingmao Wang
29752205db
landlock: Add API support and docs for the quiet flags
Adds the UAPI for the quiet flags feature (but not the implementation
yet).

Even though currently LANDLOCK_ADD_RULE_QUIET only affects audit
logging, in the future this can also be used as part of a supervisor
mechanism, where it will also suppress denial notifications on a
per-object basis.  Thus the name is deliberately generic, as opposed to
e.g. LANDLOCK_ADD_RULE_LOG_QUIET.

According to pahole, even after adding the struct access_masks
quiet_masks in struct landlock_hierarchy, the u32 log_* bitfield still
only has a size of 2 bytes, so there's minimal wasted space.

Assisted-by: GitHub-Copilot:claude-opus-4.8
Signed-off-by: Tingmao Wang <m@maowtm.org>
[mic: Update date, fix comment formatting]
Link: https://patch.msgid.link/031184748a8e74c0bb02f1fa13d7a3f10918c627.1781228815.git.m@maowtm.org
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2026-06-14 20:17:19 +02:00
Matthieu Buffet
299eccf996
landlock: Add documentation for UDP support
Add example of UDP usage, without detailing the two access right.
Slightly change the example used in code blocks: build a ruleset for a
DNS client, so that it uses both TCP and UDP.

Test coverage for security/landlock is 91.3% of 2245 lines according to
LLVM 22.

Signed-off-by: Matthieu Buffet <matthieu@buffet.re>
Link: https://patch.msgid.link/20260611162107.49278-7-matthieu@buffet.re
[mic: Fix doc formatting, update audit doc, add test coverage]
Signed-off-by: Mickaël Salaün <mic@digikod.net>
2026-06-14 20:17:16 +02:00
Manuel Ebner
94dfdf6a1b Documentation: bug-hunting.rst: fix grammar
Fix a grammar issue to improve readability

Signed-off-by: Manuel Ebner <manuelebner@mailbox.org>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260605190055.15921-2-manuelebner@mailbox.org>
2026-06-12 13:24:09 -06:00
Brigham Campbell
30708f0372 docs: Fix minor grammatical error
Fix minor grammatical error in the administration guide.

Signed-off-by: Brigham Campbell <me@brighamcampbell.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260609070618.12566-1-me@brighamcampbell.com>
2026-06-12 13:22:41 -06:00
Greg Kroah-Hartman
f176a7c3e4 thunderbolt: Changes for v7.2 merge window
This includes following USB4/Thunderbolt changes for the v7.2 merge
 window:
 
   - Make the driver more compliant with the connection manager guide.
   - Improvements over Thunderbolt XDomain service handling.
   - USB4STREAM driver.
   - Split out PCIe bits into pci.c to allow the driver to work on
     non-PCIe hosts as well.
   - Various fixes and improvements.
 
 All these have been in linux-next with no reported issues.
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Merge tag 'thunderbolt-for-v7.2-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt into usb-next

Mika writes:

thunderbolt: Changes for v7.2 merge window

This includes following USB4/Thunderbolt changes for the v7.2 merge
window:

  - Make the driver more compliant with the connection manager guide.
  - Improvements over Thunderbolt XDomain service handling.
  - USB4STREAM driver.
  - Split out PCIe bits into pci.c to allow the driver to work on
    non-PCIe hosts as well.
  - Various fixes and improvements.

All these have been in linux-next with no reported issues.

* tag 'thunderbolt-for-v7.2-rc1' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/westeri/thunderbolt: (41 commits)
  thunderbolt: debugfs: Fix sideband write size check
  thunderbolt: debugfs: Fix margining error counter buffer leak
  thunderbolt: test: Release third DP tunnel
  thunderbolt: Prevent XDomain delayed work use-after-free on disconnect
  thunderbolt: test: Add KUnit tests for property parser bounds checks
  thunderbolt: Add some more descriptive probe error messages
  thunderbolt: Require nhi->ops be valid
  thunderbolt: Separate out common NHI bits
  thunderbolt: Move pci_device out of tb_nhi
  thunderbolt: Increase Notification Timeout to 255 ms for USB4 routers
  thunderbolt: Increase timeout for Configuration Ready bit
  thunderbolt: Verify Router Ready bit is set after router enumeration
  thunderbolt: Verify PCIe adapter in detect state before tunnel setup
  thunderbolt: Activate path hops from source to destination
  thunderbolt: Fix lane bonding log when bonding not possible
  thunderbolt: Don't access path config space on Lane 1 adapters in tb_switch_reset_host()
  thunderbolt: Improve multi-display DisplayPort tunnel allocation
  docs: admin-guide: thunderbolt: Add instructions how to use USB4STREAM
  thunderbolt: Add support for USB4STREAM
  thunderbolt: Add support for ConfigFS
  ...
2026-06-12 10:44:24 +02:00
Rafael J. Wysocki
9abc374499 Merge branch 'pm-cpufreq'
Merge cpufreq updates for 7.2:

 - Fix a race between cpufreq suspend and CPU hotplug during system
   shutdown (Tianxiang Chen)

 - Avoid redundant target() calls for unchanged limits and fix a typo
   in a comment in the cpufreq core (Viresh Kumar)

 - Fix concurrency issues related to sysfs attributes access that affect
   cpufreq governors using the common governor code (Zhongqiu Han)

 - Simplify frequency limit handling in the conservative cpufreq
   governor (Lifeng Zheng)

 - Fix descriptions of the conservative governor freq_step tunable and
   the ondemand governor sampling_down_factor tunable in the cpufreq
   documentation (Pengjie Zhang)

 - Fix use-after-free and double free during _OSC evaluation in the PCC
   cpufreq driver (Yuho Choi)

 - Rework the handling of policy min and max frequency values in the
   cpufreq core to allow drivers to specify special initial values for
   the scaling_min_freq and scaling_max_freq sysfs attributes (Pierre
   Gondois)

 - Add cpufreq scaling support for Qualcomm Shikra SoC (Taniya Das,
   Imran Shaik).

 - Improve the warning message on HWP-disabled hybrid processors printed
   by the intel_pstate driver and sync policy->cur during CPU offline in
   it (Yohei Kojima, Fushuai Wang)

 - Drop cpufreq support for AMD Elan SC4* (Sean Young)

 - Minor fixes for cpufreq drivers (Krzysztof Kozlowski, Akashdeep Kaur,
   Hans Zhang, Guangshuo Li, Xueqin Luo)

 - Clean up dead dependencies on X86 in the cpufreq Kconfig (Julian
   Braha)

* pm-cpufreq: (25 commits)
  cpufreq: Use policy->min/max init as QoS request
  cpufreq: Remove driver default policy->min/max init
  cpufreq: Set default policy->min/max values for all drivers
  cpufreq: Extract cpufreq_policy_init_qos() function
  cpufreq: Documentation: fix conservative governor freq_step description
  cpufreq: ti: Add EPROBE_DEFER for K3 SoCs
  cpufreq: qcom: Add cpufreq scaling support for Qualcomm Shikra SoC
  dt-bindings: cpufreq: Document Qualcomm Shikra SoC EPSS
  cpufreq: governor: Fix stale prev_cpu_nice spike when enabling ignore_nice_load
  cpufreq: governor: Fix data races on per-CPU idle/nice baselines
  cpufreq: intel_pstate: Improve warning message on HWP-disabled hybrid CPUs
  cpufreq: elanfreq: Drop support for AMD Elan SC4*
  cpufreq: clean up dead dependencies on X86 in Kconfig
  cpufreq: conservative: Simplify frequency limit handling
  cpufreq: Avoid redundant target() calls for unchanged limits
  cpufreq: Fix typo in comment
  cpufreq: intel_pstate: Sync policy->cur during CPU offline
  cpufreq: Documentation: fix sampling_down_factor range
  cpufreq: Fix hotplug-suspend race during reboot
  cpufreq: pcc: fix use-after-free and double free in _OSC evaluation
  ...
2026-06-11 21:19:13 +02:00
Roberto Sassu
c26d9d9246 ima: Add support for flushing the hash table when staging measurements
During staging and delete, measurements are not completely deallocated.
Their entry digest portion is kept and is still reachable with the hash
table to detect duplicate records. If the number of records is significant,
this reduces the memory saving benefit of staging.

Some users might be interested in achieving the best memory saving (the
measurements are completely deallocated) at the cost of having duplicate
records across the staged measurement lists. Duplicate records are still
avoided within the current measurement list.

Introduce the new kernel option ima_flush_htable to decide whether or not
the digests of staged measurement records are flushed from the hash table,
when they are deleted, to achieve the maximum memory saving.

When the option is enabled, replace the old hash table with a new one,
by calling ima_alloc_replace_htable(), and completely delete the
measurements records.

Note: This code derives from the Alt-IMA Huawei project, whose license is
      GPL-2.0 OR MIT.

Link: https://github.com/linux-integrity/linux/issues/1
Signed-off-by: Roberto Sassu <roberto.sassu@huawei.com>
Signed-off-by: Mimi Zohar <zohar@linux.ibm.com>
2026-06-08 11:43:30 -04:00
Jeff Layton
0e06a884f5 nfs: remove nfs_compat_user_ino64() and deprecate enable_ino64
Now that inode->i_ino stores the full 64-bit NFS fileid, the
nfs_compat_user_ino64() function is no longer needed.
generic_fillattr() already copies inode->i_ino into stat->ino, so the
explicit override in nfs_getattr() is also redundant.

Also remove the now-unused nfs_fileid_to_ino_t() and
nfs_fattr_to_ino_t() helper functions that were used to XOR-fold
64-bit fileids into the old unsigned long i_ino.

Keep the enable_ino64 module parameter as a deprecated stub that
accepts but ignores the value, logging a notice when set. This avoids
breaking existing configurations that pass nfs.enable_ino64 on the
kernel command line or in modprobe.d.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Anna Schumaker <anna.schumaker@hammerspace.com>
2026-06-08 10:21:54 -04:00
Pengjie Zhang
03120e1425 cpufreq: Documentation: fix conservative governor freq_step description
The conservative governor documentation incorrectly states that setting
freq_step to 0 will use the default 5% frequency step. In reality, since
at least commit 8e677ce83b ("[CPUFREQ] conservative: fixup governor to
function more like ondemand logic"), freq_step=0 has always caused the
governor to skip frequency updates entirely.

Correct the documentation to reflect the actual behavior: freq_step=0
disables frequency changes by the governor entirely.

Fixes: 2a0e492798 ("cpufreq: User/admin documentation update and consolidation")
Signed-off-by: Pengjie Zhang <zhangpengjie2@huawei.com>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
[ rjw: Subject adjustment ]
Link: https://patch.msgid.link/20260603055635.1549943-1-zhangpengjie2@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-06-08 15:32:19 +02:00
Thadeu Lima de Souza Cascardo
640c57d6ca cgroup/dmem: introduce a peak file
Just like we have memory.peak, introduce a dmem.peak, which uses the
page_counter support for that.

For now, make it read-only.

This allows for memory usage monitoring without polling dmem.current when
the information needed is the maximum device memory used. That can be used
for capacity planning, such that dmem.max can be properly setup for a given
workload. It can also be used for debugging to determine whether a given
workload would have caused eviction or system memory use.

Signed-off-by: Thadeu Lima de Souza Cascardo <cascardo@igalia.com>
Reviewed-by: Michal Koutný <mkoutny@suse.com>
Reviewed-by: Maarten Lankhorst <dev@lankhorst.se>
Link: https://patch.msgid.link/20260514-dmem_peak-v3-1-b64ce5d3ac38@igalia.com
Signed-off-by: Maarten Lankhorst <dev@lankhorst.se>
2026-06-05 12:36:55 +02:00
Jakub Kicinski
8d72997dab Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.1-rc7).

Silent conflicts:

net/wireless/nl80211.c
  cb9959ab5f ("wifi: cfg80211: enforce HE/EHT cap/oper consistency")
  a384ae9699 ("wifi: cfg80211: move AP HT/VHT/... operation to beacon info")
https://lore.kernel.org/aiGJDaHV4UlCexIQ@sirena.org.uk

Conflicts:

drivers/net/wireless/intel/iwlwifi/mld/ap.c
  a342c99cb7 ("wifi: iwlwifi: mld: honor BSS_CHANGED_BEACON_ENABLED")
  9bf1b409af ("wifi: iwlwifi: mld: send tx power constraints before link activation")
https://lore.kernel.org/ah2bfedhV45ZxMO8@sirena.org.uk

drivers/net/wireless/intel/iwlwifi/pcie/drv.c
  093305d801 ("wifi: iwlwifi: pcie: simplify the resume flow if fast resume is not used")
  e2323929a6 ("wifi: iwlwifi: pcie: add debug print for resume flow if powered off")
https://lore.kernel.org/ah2bfedhV45ZxMO8@sirena.org.uk

Adjacent changes:

drivers/net/ethernet/airoha/airoha_eth.c
  b38cae85d1 ("net: airoha: Fix use-after-free in metadata dst teardown")
  ec6c391bcc ("net: airoha: Introduce airoha_gdm_dev struct")

drivers/net/ethernet/microchip/lan743x_main.c
  8173d22b21 ("net: lan743x: permit VLAN-tagged packets up to configured MTU")
  e3c6508a46 ("net: lan743x: avoid netdev-based logging before netdev registration")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-06-04 15:29:04 -07:00
Brian Masney
a195cf013e docs: mm: clarify that user_reserve_kbytes has no effect when overcommit_memory is set to 0 or 1
Looking at __vm_enough_memory() in mm/util.c, user_reserve_kbytes has no
effect when overcommit_memory is set to 0 or 1. The documentation for
overcommit_memory already references user_reserve_kbytes when the flag
is set to 2.

Let's go ahead and add a clarification to user_reserve_kbytes in vm.rst
that it has no effect when overcommit_memory is set to 0 or 1.

Link: https://lore.kernel.org/20260528-mm-clarify-docs-v1-1-aa88e83b4bfd@redhat.com
Signed-off-by: Brian Masney <bmasney@redhat.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-04 14:45:08 -07:00
Maksym Shcherba
83b25befc1 Docs/admin-guide/mm/damon/usage: clarify current_value of quota goals
The sysfs interface for DAMON quota goals includes a `current_value` file.
This file is not updated by the kernel and only serves to receive user
input.

Clarify in the documentation that the kernel does not update
`current_value`, and that reading it only has meaning when `target_metric`
is set to `user_input`.

While at it, fix missing commas in the goal files list.

Link: https://lore.kernel.org/20260521202020.126500-3-maksym.shcherba@lnu.edu.ua
Signed-off-by: Maksym Shcherba <maksym.shcherba@lnu.edu.ua>
Reviewed-by: SeongJae Park <sj@kernel.org>
Assisted-by: Antigravity:Gemini-3.1-Pro
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-04 14:45:02 -07:00
Zenghui Yu
12e4d4bb6e Docs/{ABI,admin-guide}/damon: fix various typoes
``damon_target_idx`` was wrongly written as ``target_idx`` in the docs. 
Fix it all over the place, as well as the wrong directory count, grammar,
etc.

Link: https://lore.kernel.org/20260520012104.93602-4-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Signed-off-by: Zenghui Yu <zenghui.yu@linux.dev>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport (Microsoft) <rppt@kernel.org>
Cc: niecheng <niecheng1@uniontech.com>
Cc: Sakurai Shun <ssh1326@icloud.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-02 15:22:34 -07:00
Leon Hwang
c33afe6f97 Documentation/admin-guide/mm: fix typos in transhuge.rst
Fix these two typos:

1. approporiately -> appropriately
2. presure -> pressure

Link: https://lore.kernel.org/20260520051751.74396-1-leon.hwang@linux.dev
Signed-off-by: Leon Hwang <leon.hwang@linux.dev>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Lance Yang <lance.yang@linux.dev>
Reviewed-by: SeongJae Park <sj@kernel.org>
Reviewed-by: Lorenzo Stoakes <ljs@kernel.org>
Cc: Baolin Wang <baolin.wang@linux.alibaba.com>
Cc: Barry Song <baohua@kernel.org>
Cc: Dev Jain <dev.jain@arm.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Leon Hwang <leon.hwang@linux.dev>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Nico Pache <npache@redhat.com>
Cc: Ryan Roberts <ryan.roberts@arm.com>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Cc: Zi Yan <ziy@nvidia.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-02 15:22:33 -07:00
SeongJae Park
9d3678808a Docs/admin-guide/mm/damon/usage: update for memcg damon filter
Update DAMON usage document for the newly added belonging memory cgroup
attribute monitoring feature.

Link: https://lore.kernel.org/20260518234119.97569-29-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-02 15:22:31 -07:00
SeongJae Park
69a7435201 Docs/admin-guide/mm/damon/usage: document data attributes monitoring
Update DAMON usage document for the newly added data attributes monitoring
feature.

Link: https://lore.kernel.org/20260518234119.97569-22-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Steven Rostedt <rostedt@goodmis.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-02 15:22:29 -07:00
Sang-Heon Jeon
fb95c50921 mm/hugetlb_cma: restrict hugetlb_cma parameter to gigantic-page alignment
Existing hugetlb_cma parameter handling logic rejects sizes smaller than
one gigantic page, but rounds up larger sizes that are not a multiple of
it.  The two behaviors are inconsistent and neither is documented.

To remove existing inconsistent and undefined behavior, restrict
hugetlb_cma parameter to only accept multiples of the gigantic page size.

After this restriction, the redundant round_up() in the allocation loop
can be removed.

The new restriction is also documented in kernel-parameters.txt.

Also, including other minor changes for readability improvement with no
functional change.

Link: https://lore.kernel.org/20260503084225.415980-1-ekffu200098@gmail.com
Signed-off-by: Sang-Heon Jeon <ekffu200098@gmail.com>
Suggested-by: Muchun Song <muchun.song@linux.dev>
Acked-by: Muchun Song <muchun.song@linux.dev>
Acked-by: Oscar Salvador <osalvador@suse.de>
Cc: David Hildenbrand <david@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-06-02 15:22:16 -07:00
Jim Cromie
5c48ecedf7 docs/dyndbg: explain flags parse 1st
When writing queries to >control, flags are parsed 1st, since they are
the only required field, and they require specific compositions.  So
if the flags draw an error (on those specifics), then keyword errors
aren't reported.  This can be mildly confusing/annoying, so explain it
instead.

cc: linux-doc@vger.kernel.org
Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260502-dyndbg-doc-v1-2-67cc4a93a77e@gmail.com>
2026-06-01 13:11:20 -06:00
Jim Cromie
c76934b3f4 docs/dyndbg: update examples \012 to \n
commit 47ea6f99d0 ("dyndbg: use ESCAPE_SPACE for cat control")
changed the control-file to display format strings with "\n" rather
than "\012".  Update the docs to match the new reality.

Reviewed-by: Louis Chauvet <louis.chauvet@bootlin.com>
Tested-by: Louis Chauvet <louis.chauvet@bootlin.com>
Signed-off-by: Jim Cromie <jim.cromie@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260502-dyndbg-doc-v1-1-67cc4a93a77e@gmail.com>
2026-06-01 13:11:20 -06:00
Costa Shulyupin
3c2edee3a4 docs: kernel-parameters: Fix stale sticore file paths
Update file paths for sticore references that
became stale when drivers were reorganized:
- drivers/video/console/sticore.c -> drivers/video/

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531140541.4115641-1-costa.shul@redhat.com>
2026-06-01 13:07:56 -06:00
Costa Shulyupin
11d309f633 docs: sonypi: Fix stale header file path
The sonypi.h header was moved from drivers/char/ to
include/linux/. Update the reference.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531135850.4113774-1-costa.shul@redhat.com>
2026-06-01 13:02:20 -06:00
Costa Shulyupin
d50ff037a1 docs: kernel-parameters: Remove sa1100ir IrDA parameter
The sa1100ir parameter referenced drivers/net/irda/sa1100_ir.c,
which was removed along with the entire IrDA stack in commit d64c2a7612
("staging: irda: remove the irda network stack and drivers").

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260531135455.4113157-1-costa.shul@redhat.com>
2026-06-01 12:58:43 -06:00
Randy Dunlap
a41ac48a16 iommu: Documentation: rearrange, update kernel-parameters
Add text for some undescribed iommu= parameters (merge, nomerge,
biomerge, panic, nopanic, pt, nopt). Add "usedac" and its description.
Add that iommu=pt is equivalent to iommu.passthrough=1
and that iommu=nopt is equivalent to iommu.passthrough=0.

Move the PPC/POWERNV heading & its option "nobypass" to a separate
area since the current "iommu=" applies only to X86 (according to
its heading).

Unindent the AMD GART IOMMU options heading to make it stand out.
Also add its kconfig symbol name to be explicit about what these
options apply to.

Make sure that the IOMMU options that are listed under AMD Gart
HW IOMMU-specific options are only for that product; i.e., add "force"
there and move "merge", "nomerge", and "panic" to the general IOMMU
options area.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260528054611.1524937-1-rdunlap@infradead.org>
2026-06-01 12:57:14 -06:00
Miguel Martín Gil
af794e79d8 docs: md: fix grammar in speed_limit description
Replace 'This are' with 'These are' in the md sysfs speed limit
section to correct grammar and improve readability.

Signed-off-by: Miguel Martín Gil <miguel.martin.gil.uni@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260525214554.2196-1-miguel.martin.gil.uni@gmail.com>
2026-06-01 12:51:26 -06:00
Greg Kroah-Hartman
da61573f78 Linux 7.1-rc6
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Merge tag 'v7.1-rc6' into char-misc-next

We need the char/misc/iio fixes in here as well.

Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-06-01 18:10:34 +02:00
Costa Shulyupin
6935f0496c docs: cgroup: Fix stale source file paths
Update two references to files that were moved:
- kernel/cgroup.c -> kernel/cgroup/cgroup.c
- tools/cgroup/cgroup_event_listener.c ->
  samples/cgroup/cgroup_event_listener.c

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-05-31 06:27:30 -10:00
Rafael J. Wysocki
f02504316b Merge back earlier cpufreq material for 7.2 2026-05-29 14:39:36 +02:00
SeongJae Park
f27d56b4f2 Docs/admin-guide/mm/damon/stat: document kdamond_pid parameter
Update DAMON_STAT usage document for newly added kdamond_pid parameter.

Link: https://lore.kernel.org/20260502020505.80822-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:05:08 -07:00
SeongJae Park
1794454a3b Docs/admin-guide/mm/damon/reclaim: update for autotune_monitoring_intervals
Update DAMON_RECLAIM usage document for the newly added monitoring
intervals auto-tuning enablement parameter.

Link: https://lore.kernel.org/20260501011740.81988-3-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:05:07 -07:00
SeongJae Park
7e6cc9f954 Docs/admin-guide/mm/damon/usage: mark scheme filters sysfs dir as deprecated
Patch series "mm/damon/sysfs: document filters/ directory as deprecated".

Commit ab71d2d301 ("mm/damon/sysfs-schemes: let
damon_sysfs_scheme_set_filters() be used for different named directories")
introduced alternatives of 'filters' directory, namely core_filters/ and
'ops_filters/ directories.  Now the alternatives are well stabilized and
ready for all users.  All filters/ directory use cases are expected to be
able to be migrated to the alternatives.  An LTS kernel having the
alternatives, namely 6.18.y, is also released.  Existence of filters/
directory is only confusing.

It would be better not immediately removing the directory, though.  There
could be users that need time before migrating to the alternatives.  There
might be unexpected use cases that the alternatives cannot support.  Doing
the deprecation step by step across multiple years like DAMON debugfs
deprecation would be safer.  Start the deprecation changes by announcing
the deprecation on the documents.

Every year, one more action for completely removing the directory will be
followed, like DAMON debugfs deprecation did.  Following yearly actions
are currently expected.  In 2027, deprecation warning kernel messages will
be printed once, for use of filters/ directory.  In 2028, filters/
directory will be renamed to filters_DEPRECATED/.  In 2029,
filters_DEPRECATED/ directory will be removed.


This patch (of 2):

The alternatives of 'filters/' directory, namely 'core_filters/' and
'ops_filters/', can fully support all the features 'filters/' directory
can do, and provide better user experience.  Having 'filters/' directory
is only confusing to users.  Announce it as deprecated on the usage
document.

Link: https://lore.kernel.org/20260429150309.82282-1-sj@kernel.org
Link: https://lore.kernel.org/20260429150309.82282-2-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:05:03 -07:00
SeongJae Park
77289dcfa9 Docs/admin-guide/mm/damon/lru_sort: update for entire memory monitoring
Update DAMON_LRU_SORT usage document for the changed default monitoring
target region selection.

Link: https://lore.kernel.org/20260429041232.90257-8-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:05:03 -07:00
SeongJae Park
2262a91561 Docs/admin-guide/mm/damon/reclaim: update for entire memory monitoring
Update DAMON_RECLAIM usage document for the changed default monitoring
target region selection.

Link: https://lore.kernel.org/20260429041232.90257-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:05:02 -07:00
SeongJae Park
ade1a22a8b Docs/admin-guide/mm/damon/usage: update for pause file
Update DAMON usage document for the DAMON context execution pause/resume
feature.

Link: https://lore.kernel.org/20260427151231.113429-5-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:04:58 -07:00
Cheng-Han Wu
abdca14655 Docs/admin-guide/mm/damon: fix 'parametrs' typo
Fix the misspelling of "parametrs" as "parameters" in reclaim.rst and
lru_sort.rst.

Link: https://lore.kernel.org/20260426231619.107231-3-sj@kernel.org
Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Signed-off-by: SeongJae Park <sj@kernel.org>
Reviewed-by: SeongJae Park <sj@kernel.org>
Cc: Asier Gutierrez <gutierrez.asier@huawei-partners.com>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Liew Rui Yan <aethernet65535@gmail.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <skhan@linuxfoundation.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:04:55 -07:00
SeongJae Park
59ebdeedb5 Docs/admin-guide/mm/damon/usage: document fail_charge_{num,denom} files
Update DAMON usage document for the DAMOS action failed regions quota
charge ratio control sysfs files.

Link: https://lore.kernel.org/20260428013402.115171-7-sj@kernel.org
Signed-off-by: SeongJae Park <sj@kernel.org>
Cc: Brendan Higgins <brendan.higgins@linux.dev>
Cc: David Hildenbrand <david@kernel.org>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Liam R. Howlett <liam@infradead.org>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Cc: Vlastimil Babka <vbabka@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-05-28 21:04:43 -07:00
Jakub Kicinski
d44646fc9e Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.1-rc6).

Conflicts:

drivers/net/phy/air_en8811h.c
  d895767c33 ("net: phy: air_en8811h: add AN8811HB MCU assert/deassert support")
  dddfadd751 ("net: phy: Add Airoha phy library for shared code")
  5226bb6634 ("net: phy: air_phy_lib: Factorize BuckPBus register accessors")
  e08f0ea6da ("net: phy: Rename Airoha common BuckPBus register accessors")

net/sched/sch_netem.c
  a2f6ed7b48 ("net/sched: netem: add per-impairment extended statistics")
  9552b11e3e ("net/sched: fix packet loop on netem when duplicate is on")

Adjacent changes:

drivers/dpll/zl3073x/core.c
  c1224569ce ("dpll: zl3073x: make frequency monitor a per-device attribute")
  54e65df8cf ("dpll: zl3073x: report FFO as DPLL vs input reference offset")

net/iucv/af_iucv.c
  347fdd4df8 ("af_iucv: convert to getsockopt_iter")
  3589d20a66 ("net/iucv: fix locking in .getsockopt")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-28 14:02:21 -07:00
Michael Riesch
804ed52335 Documentation: admin-guide: media: add rk3588 vicap
Add a section that describes the Rockchip RK3588 VICAP.

Reviewed-by: Mehdi Djait <mehdi.djait@linux.intel.com>
Signed-off-by: Michael Riesch <michael.riesch@collabora.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2026-05-28 22:10:01 +03:00
Armin Wolf
73fa957a05
platform/x86: uniwill-laptop: Add support for battery charge modes
Many Uniwill-based devices do not supports the already existing
charge limit functionality, but instead support an alternative
interface for controlling the battery charge algorithm.

Add support for this interface and update the documentation.

Reviewed-by: Werner Sembach <wse@tuxedocomputers.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260512232145.329260-8-W_Armin@gmx.de
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-05-28 13:23:33 +03:00
Ilpo Järvinen
0129159fcc
Merge branch 'fixes' into for-next
Merge uniwill driver fixes to the for-next branch to be able to continue
feature work there.
2026-05-28 13:21:45 +03:00
Feng Tang
d5cae2261b dma-contiguous: simplify numa cma area handling
Currently, there are 2 kernel cmdline ways to setup numa cma area:
"cma_pernuma=" and "numa_cma=", and there are 2 cma arrays as well,
while they have no difference technically. Robin suggested to cleanup
the code and only use one array [1], as "the apparent intent that
users only want one _or_ the other".

Simplify the code by only using one array to save the numa cma area.
And in rare case that a user really setup the 2 cmdline parameters
at the same time,  let the per-node specific size setting 'numa_cma='
take priority over the global numa cma setting.

Link[1]: https://lore.kernel.org/lkml/43c5301c-fe6a-41e4-9482-ccfc7b62f2a7@arm.com/

Suggested-by: Robin Murphy <robin.murphy@arm.com>
Signed-off-by: Feng Tang <feng.tang@linux.alibaba.com>
Signed-off-by: Marek Szyprowski <m.szyprowski@samsung.com>
Link: https://lore.kernel.org/r/20260525015111.6267-1-feng.tang@linux.alibaba.com
2026-05-28 10:11:45 +02:00
Borislav Petkov (AMD)
80501dff81 Documentation/arch/x86: Hide clearcpuid=
This option was never meant to be used in production because it solely
clears the X86_FEATURE kernel-internal representation of what CPUID bits
it has detected and doesn't do any *proper* feature disablement like
clearing CR4.CET in the user shadow stack case, for example.

So remove its documentation so that it doesn't get used in production
and people get silly ideas. It is meant strictly for debugging; and if
a chicken bit for properly disabling a feature is warranted, then that
would need proper enablement.

No functional changes.

Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Cc: Mathias Krause <minipli@grsecurity.net>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://patch.msgid.link/20260520202508.160112-1-bp@kernel.org
2026-05-26 05:37:20 +02:00
Costa Shulyupin
d7391997ea docs: sysctl/net: Remove ax25, netrom, rose entries
These networking subsystems were removed in commit dd8d4bc28a
("net: remove ax25 and amateur radio (hamradio) subsystem"),
but the sysctl directory table still listed them.

Assisted-by: Claude:claude-opus-4-6
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260515180200.1490926-1-costa.shul@redhat.com>
2026-05-25 14:31:44 -06:00
Linlin Zhang
f9f57971da dm-inlinecrypt: add support for hardware-wrapped keys
Add support for hardware-wrapped encryption keys to the
dm-inlinecrypt target.

Introduce a new optional argument <key_type> to indicate
whether the provided key is a raw key or a hardware-wrapped
key. Based on this flag, the appropriate blk-crypto key type
is selected when initializing the key.

This allows dm-inlinecrypt to work with hardware that requires
keys to be wrapped and managed by the underlying inline
encryption engine.

Update the target argument parsing accordingly and pass the
key type to blk_crypto_init_key(). Documentation is also
updated to reflect the new parameter and usage.

Signed-off-by: Linlin Zhang <linlin.zhang@oss.qualcomm.com>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
Fixes: e7f57d2c47 ("dm-inlinecrypt: add target for inline block device encryption")
2026-05-25 17:56:56 +02:00
Danilo Krummrich
56785dcb2e Linux 7.1-rc5
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Merge tag 'v7.1-rc5' into driver-core-next

We need the driver-core fixes in here as well to build on top of.

Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-05-25 02:40:57 +02:00
Uladzislau Rezki (Sony)
eceb659752 rcu: Latch normal synchronize_rcu() path on flood
Currently, rcu_normal_wake_from_gp is only enabled by default
on small systems(<= 16 CPUs) or when a user explicitly set it
enabled.

Introduce an adaptive latching mechanism:
 * Track the number of in-flight synchronize_rcu() requests
   using a new rcu_sr_normal_count counter;

 * If the count reaches/exceeds RCU_SR_NORMAL_LATCH_THR(64),
   it sets the rcu_sr_normal_latched, reverting new requests
   onto the scaled wait_rcu_gp() path;

 * The latch is cleared only when the pending requests are fully
   drained(nr == 0);

 * Enables rcu_normal_wake_from_gp by default for all systems,
   relying on this dynamic throttling instead of static CPU
   limits.

Testing(synthetic flood workload):
  * Kernel version: 6.19.0-rc6
  * Number of CPUs: 1536
  * 60K concurrent synchronize_rcu() calls

Perf(cycles, system-wide):
  total cycles: 932020263832
  rcu_sr_normal_add_req(): 2650282811 cycles(~0.28%)

Perf report excerpt:
  0.01%  0.01%  sync_test/...  [k] rcu_sr_normal_add_req

Measured overhead of rcu_sr_normal_add_req() remained ~0.28%
of total CPU cycles in this synthetic stress test.

Reviewed-by: Frederic Weisbecker <frederic@kernel.org>
Tested-by: Samir M <samir@linux.ibm.com>
Suggested-by: Joel Fernandes <joelagnelf@nvidia.com>
Signed-off-by: Uladzislau Rezki (Sony) <urezki@gmail.com>
2026-05-24 09:40:08 +02:00
Ethan Nelson-Moore
05cb9529a4 char: applicom: remove low-quality, unused driver
The applicom driver supports PCI Profibus cards from Applicom, later
acquired by Molex. It has severe coding style issues and has attracted
a number of bug and security fixes over the years, despite the fact
that no one appears to be using it. It was broken from at least the
beginning of Git history (Linux 2.6.12-rc2 in April 2005) until October
2008, when a fatal bug was fixed in commit bc20589bf1 ("applicom.c:
fix apparently-broken code in do_ac_read()"). In the commit message,
the author commented that no one they knew was able to test the change.
Since then, there have been no commits that indicate the driver is
being used. Later PCI and PCI-Express Applicom Profibus cards only
officially support Windows [1], and even the PCI-Express cards have
been discontinued [2]. Given all these factors, remove the driver to
reduce future maintenance workload.

[1] https://www.sarcitalia.it/file_upload/prodotti//PCIE1500S7_PFB_987651-3769_0876250001505823933.pdf
[2] https://us.rs-online.com/product/molex-woodhead-brad/112011-5026/70631928/

Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Acked-by: David Woodhouse <dwmw2@infradead.org>
Acked-by: Arnd Bergmann <arnd@arndb.de>
Link: https://patch.msgid.link/20260503035824.24078-1-enelsonmoore@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
2026-05-23 13:47:34 +02:00
Ethan Nelson-Moore
910394c74c net: arcnet: remove ISA and PCMCIA support; modernize documentation
While ARCnet is still used in industrial environments, and cards are
still manufactured, it is unlikely anyone is still using it with ISA
and PCMCIA cards. Reduce future maintenance burden by removing all ISA
and PCMCIA ARCnet drivers and documentation related to them. Update
instructions for loading modules and passing parameters to work on
modern kernels and with the com20020_pci driver. Also take the
opportunity to document the rest of the module parameters, correct a
file path in Documentation/networking/arcnet.rst, and change a
reference to /etc/rc.inet1, which no longer exists, to refer to
ifconfig.

Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Link: https://patch.msgid.link/20260521001631.45434-4-enelsonmoore@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-22 17:20:56 -07:00
Linus Torvalds
59825bc9ce platform-drivers-x86 for v7.1-4
Fixes and New HW Support
 
 - Add ACPI_HANDLE()/ACPI_COMPANION() NULL checks (many drivers) to
   handle match overrides gracefully
 
 - asus-armoury:
 
   - Fix mini-LED mode get/set
 
   - Add support for FA401EA, FX607VU, G614FR, and GU605CP
 
 - bitland-mifs-wmi: Add CONFIG_LEDS_CLASS dependency
 
 - hp-wmi: Add thermal support for Omen 16-c0xxx (board 8902)
 
 - intel/vsec: Fix enable_cnt imbalance due to PCIe error recovery
 
 - surface/aggregator_registry: Remove battery & AC nodes on Surface
 			       Laptop 7 to avoid duplicated devices
 
 - uniwill-laptop:
 
   - Handle uninitialized and invalid charging threshold values
 
   - Accept charging threshold of 0 through power supply sysfs ABI and
     clamp it to 1
 
   - Make 'force' parameter to work also when device descriptor is found
 
   - Do not enable charging limit despite the 'force' parameter to avoid
     permanent damage to battery
 
 The following is an automated shortlog grouped by driver:
 
 acer-wireless:
  -  Check ACPI_COMPANION() against NULL
 
 adv_swbutton:
  -  Check ACPI_HANDLE() against NULL
 
 asus-armoury:
  -  add support for FA401EA
  -  add support for FX607VU
  -  add support for G614FR
  -  add support for GU605CP
  -  fix mini-LED mode get/set on MODE2 devices
 
 asus-laptop:
  -  Check ACPI_COMPANION() against NULL
 
 bitland-mifs-wmi:
  -  add CONFIG_LEDS_CLASS dependency
 
 dell/dell-rbtn:
  -  Check ACPI_COMPANION() against NULL
 
 eeepc-laptop:
  -  Check ACPI_COMPANION() against NULL
 
 fujitsu:
  -  Check ACPI_COMPANION() against NULL
 
 fujitsu-tablet:
  -  Check ACPI_COMPANION() against NULL
 
 hp_accel:
  -  Check ACPI_COMPANION() against NULL
 
 hp-wmi:
  -  fix support for thermal profile Omen 16-с0xxx laptops
 
 intel-hid:
  -  Check ACPI_HANDLE() against NULL
 
 intel/rst:
  -  Check ACPI_COMPANION() against NULL
 
 intel_sar:
  -  Check ACPI_HANDLE() against NULL
 
 intel/smartconnect:
  -  Check ACPI_HANDLE() against NULL
 
 intel-vbtn:
  -  Check ACPI_HANDLE() against NULL
 
 intel/vsec:
  -  Fix enable_cnt imbalance on PCIe error recovery
 
 lg-laptop:
  -  Check ACPI_COMPANION() against NULL
 
 panasonic-laptop:
  -  Check ACPI_COMPANION() against NULL
 
 sony-laptop:
  -  Check ACPI_COMPANION() against NULL
 
 surface: aggregator_registry:
  -  omit battery & AC nodes on Surface Laptop 7
 
 surface: surfacepro3_button:
  -  Check ACPI_COMPANION()
 
 system76:
  -  Check ACPI_COMPANION() against NULL
 
 toshiba_acpi:
  -  Check ACPI_COMPANION() against NULL
 
 toshiba_bluetooth:
  -  Check ACPI_COMPANION() against NULL
 
 toshiba_haps:
  -  Check ACPI_COMPANION() against NULL
 
 uniwill-laptop:
  -  Accept charging threshold of 0
  -  Do not enable the charging limit even when forced
  -  Fix behavior of "force" module param
  -  Properly initialize charging threshold
 
 wireless-hotkey:
  -  Check ACPI_COMPANION() against NULL
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Merge tag 'platform-drivers-x86-v7.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver fixes from

 - Add ACPI_HANDLE()/ACPI_COMPANION() NULL checks (many drivers) to
   handle match overrides gracefully

 - asus-armoury:
    - Fix mini-LED mode get/set
    - Add support for FA401EA, FX607VU, G614FR, and GU605CP

 - bitland-mifs-wmi:
    - Add CONFIG_LEDS_CLASS dependency

 - hp-wmi:
    - Add thermal support for Omen 16-c0xxx (board 8902)

 - intel/vsec:
    - Fix enable_cnt imbalance due to PCIe error recovery

 - surface/aggregator_registry:
    - Remove battery & AC nodes on Surface Laptop 7 to avoid duplicated
      devices

 - uniwill-laptop:
    - Handle uninitialized and invalid charging threshold values
    - Accept charging threshold of 0 through power supply sysfs ABI and
      clamp it to 1
    - Make 'force' parameter to work also when device descriptor is
      found
    - Do not enable charging limit despite the 'force' parameter to
      avoid permanent damage to battery

* tag 'platform-drivers-x86-v7.1-4' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (35 commits)
  platform/x86: bitland-mifs-wmi: add CONFIG_LEDS_CLASS dependency
  platform/x86: wireless-hotkey: Check ACPI_COMPANION() against NULL
  platform/x86: toshiba_haps: Check ACPI_COMPANION() against NULL
  platform/x86: toshiba_bluetooth: Check ACPI_COMPANION() against NULL
  platform/x86: toshiba_acpi: Check ACPI_COMPANION() against NULL
  platform/x86: system76: Check ACPI_COMPANION() against NULL
  platform/x86: sony-laptop: Check ACPI_COMPANION() against NULL
  platform/x86: panasonic-laptop: Check ACPI_COMPANION() against NULL
  platform/x86: lg-laptop: Check ACPI_COMPANION() against NULL
  platform/x86: intel/smartconnect: Check ACPI_HANDLE() against NULL
  platform/x86: intel/rst: Check ACPI_COMPANION() against NULL
  platform/x86: fujitsu-tablet: Check ACPI_COMPANION() against NULL
  platform/x86: fujitsu: Check ACPI_COMPANION() against NULL
  platform/x86: eeepc-laptop: Check ACPI_COMPANION() against NULL
  platform/x86: dell/dell-rbtn: Check ACPI_COMPANION() against NULL
  platform/x86: asus-laptop: Check ACPI_COMPANION() against NULL
  platform/x86: acer-wireless: Check ACPI_COMPANION() against NULL
  platform/x86: asus-armoury: add support for GU605CP
  platform/x86: asus-armoury: add support for FA401EA
  platform/x86: asus-armoury: add support for G614FR
  ...
2026-05-22 15:45:26 -07:00
Sean Young
6fb302d210 cpufreq: elanfreq: Drop support for AMD Elan SC4*
Since commit 8b793a92d8 ("x86/cpu: Remove M486/M486SX/ELAN support"),
the AMD Elan SC4* is no longer supported, so the CPU frequency driver
is no longer needed.

Signed-off-by: Sean Young <sean@mess.org>
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
[ rjw: Changelog tweaks ]
Link: https://patch.msgid.link/20260507090107.10113-1-sean@mess.org
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-22 18:42:19 +02:00
Pengjie Zhang
85524e651d cpufreq: Documentation: fix sampling_down_factor range
The ondemand governor implementation accepts sampling_down_factor values
from 1 to 100000 via MAX_SAMPLING_DOWN_FACTOR, but the documentation in
admin-guide/pm/cpufreq.rst still says the valid range is 1 to 100.

Update the documentation to match the actual code.

Fixes: 2a0e492798 ("cpufreq: User/admin documentation update and consolidation")
Reviewed-by: Zhongqiu Han <zhongqiu.han@oss.qualcomm.com>
Signed-off-by: Pengjie Zhang <zhangpengjie2@huawei.com>
Link: https://patch.msgid.link/20260518133457.2408463-1-zhangpengjie2@huawei.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-22 17:32:11 +02:00
Rafael J. Wysocki
a67f311333 amd-pstate fixes for 7.1 (05/14/2026)
A number of fixes to the dynamic epp feature which was new
 to kernel 7.1, including making it opt in only.
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Merge tag 'amd-pstate-v7.1-2026-05-14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux into pm-cpufreq-fixes

Merge amd-pstate fixes for 7.1 (05/14/2026) from Mario Limonciello:

"A number of fixes to the dynamic epp feature which was new
 to kernel 7.1, including making it opt in only."

* tag 'amd-pstate-v7.1-2026-05-14' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/superm1/linux:
  cpufreq/amd-pstate: Drop Kconfig option for dynamic EPP
  cpufreq/amd-pstate-ut: Drop policy reference before driver switch
  cpufreq/amd-pstate: Use "epp_default_dc" as default when dynamic_epp is disabled
  cpufreq/amd-pstate: Reorder notifier unregistration and floor perf reset
  cpufreq/amd-pstate: Allow writes to dynamic_epp when state isn't modified
  cpufreq/amd-pstate: Return -ENOMEM on failure to allocate profile_name
  cpufreq/amd-pstate: Grab "amd_pstate_driver_lock" when toggling dynamic_epp
2026-05-20 22:03:41 +02:00
Ethan Nelson-Moore
e38b27199e console: mdacon: remove this obsolete driver
The mdacon driver supports using ISA MDA or Hercules-compatible display
adapters as a secondary text console. This was commonly used in the
1990s and earlier for debugging software which took over the primary
display. It is highly unlikely anyone is doing so nowadays because
serial consoles and much better methods of debugging exist.

The driver is not enabled by any defconfig, nor any of the
dozens of distro configs collected at [1]. It has been relegated to VTs
13-16 since commit 0b9cf3aa6b ("mdacon messing up default vc's - set
default to vc13-16 again") in Linux 2.6.27 (and before Linux 2.5.53 -
see the link in the message of the above commit). The change in 2.6.27
was done because it was incorrectly detecting non-MDA adapters as MDA
and taking over all VTs, rendering them unusable.

Furthermore, vgacon supports using MDA/Hercules-compatible adapters as
the primary text console, so any systems with only one of these
adapters were already using vgacon and will not experience any loss in
functionality from the removal of this driver.

Given all of these factors, the mdacon driver is likely entirely
unused. Remove it.

[1] f0bee86a13

Signed-off-by: Ethan Nelson-Moore <enelsonmoore@gmail.com>
Signed-off-by: Helge Deller <deller@gmx.de>
2026-05-20 20:23:32 +02:00
Armin Wolf
26cbe119f9
platform/x86: uniwill-laptop: Do not enable the charging limit even when forced
It seems that on some older models (~2020) the battery charging limit
can permanently damage the battery. Prevent users from enabling this
feature thru the "force" module parameter to avoid causing permanent
hardware damage on such devices.

Fixes: d050479693 ("platform/x86: Add Uniwill laptop driver")
Link: https://www.reddit.com/r/XMG_gg/comments/ld9yyf/battery_limit_hidden_function_discovered_on/
Reviewed-by: Werner Sembach <wse@tuxedocomputers.com>
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20260512232145.329260-5-W_Armin@gmx.de
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-05-19 16:52:49 +03:00
Mika Westerberg
af8922ffb3 docs: admin-guide: thunderbolt: Add instructions how to use USB4STREAM
Add instructions how USB4STREAM can be configured and used.

Signed-off-by: Mika Westerberg <mika.westerberg@linux.intel.com>
2026-05-19 14:20:19 +02:00
Peter Zijlstra
a26d9208c1 Merge branch 'sched/cache'
Merge the cache aware balancer topic branch.

# Conflicts:
#	kernel/sched/topology.c
2026-05-19 12:18:01 +02:00
Linlin Zhang
5256a62f16 dm: add documentation for dm-inlinecrypt target
This adds the admin-guide documentation for dm-inlinecrypt.

dm-inlinecrypt.rst is the guide to using dm-inlinecrypt.

Signed-off-by: Linlin Zhang <linlin.zhang@oss.qualcomm.com>
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Mikulas Patocka <mpatocka@redhat.com>
2026-05-18 14:26:27 +02:00
Cheng-Han Wu
e27108800b docs: admin-guide: add IGNORE_DIRS example for cscope
The workload tracing guide shows how to build a cscope database by
running cscope command directly. The kernel build system also provides
a cscope target, which supports IGNORE_DIRS for excluding directories
from the generated database.

Mention make cscope and show how to exclude Documentation/ as an example.

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-5-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Cheng-Han Wu
7fb658ede0 docs: admin-guide: clarify perf bench all behavior
The workload tracing guide lists a fixed set of benchmarks for
"perf bench all". This list is stale and can become outdated when
perf adds, removes, or renames benchmark collections or individual
benchmarks.

Describe "perf bench all" as running all available benchmarks in the perf
bench framework instead. Also document how to list the collections and
benchmarks available on a given system.

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-4-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Cheng-Han Wu
6e13c0aac6 docs: admin-guide: fix stress-ng command examples
The workload tracing guide includes stress-ng command examples with a
stray "command." word at the end. This makes the examples invalid if they
are copied and run directly.

Remove the stray word from the stress-ng example. Also use "--" in the
perf record example to clearly separate perf record options from the
workload command being recorded.

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-3-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Cheng-Han Wu
d848b1b099 docs: admin-guide: fix typos in workload tracing guide
Fix several typos in the workload tracing guide:

  - sys_opennat() -> sys_openat()
  - annotate the to view -> annotate the output to view
  - sys_getegid -> sys_getegid()

Signed-off-by: Cheng-Han Wu <hank20010209@gmail.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260503101429.254394-2-hank20010209@gmail.com>
2026-05-15 08:48:28 -06:00
Jinjie Ruan
f5899ff9c4 docs: Update nosmt support for arm64
commit eed4583bcf ("arm64: Kconfig: Enable HOTPLUG_SMT") enable
HOTPLUG_SMT for SMT control for arm64, but the documentation was
not updated accordingly to reflect that ARM64 now supports control SMT
via boot parameter and sysfs knobs:

1. Boot parameters:

nosmt:          Disable SMT, can be enabled via sysfs knobs.
nosmt=force:    Disable SMT, cannot be enabled via sysfs knobs.

2. Runtime sysfs controls:

Write "on", "off", "forceoff" or the number of SMT threads (1, 2, ...)
to /sys/devices/system/cpu/smt/control.

Signed-off-by: Jinjie Ruan <ruanjinjie@huawei.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260417032540.3720627-1-ruanjinjie@huawei.com>
2026-05-15 08:26:31 -06:00
Chen-Shi-Hong
8d624d687d docs: reporting-issues: replace "these advices" with "all of this advice"
"Advice" is an uncountable noun, so "these advices" is grammatically
incorrect.

Replace it with "all of this advice" instead, which keeps the sentence
grammatical while also making it clear that it refers to the full set of
recommendations in the paragraph.

Signed-off-by: Chen-Shi-Hong <eric039eric@gmail.com>
Reviewed-by: WangYuli <wangyl5933@chinaunicom.cn>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260514082808.655-1-eric039eric@gmail.com>
2026-05-15 07:55:51 -06:00
Tao Cui
4376352f2c cgroup/rdma: document rdma.peak, rdma.events and rdma.events.local
Add interface file documentation for the new rdma cgroup files to
Documentation/admin-guide/cgroup-v2.rst.

Signed-off-by: Tao Cui <cuitao@kylinos.cn>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-05-14 11:22:55 -10:00
Mario Limonciello
e4e9b7b38d cpufreq/amd-pstate: Drop Kconfig option for dynamic EPP
There are some performance issues being identified by dynamic EPP
and we don't want to have distributions turning it on by default
exposing them to users at this time.

Drop the kconfig option, and require an explicit opt in from kernel
command line or runtime sysfs option to turn it on.

Reported-by: Viktor Jägersküpper <viktor_jaegerskuepper@freenet.de>
Closes: https://lore.kernel.org/linux-pm/14a87c99-785c-4b16-bfce-35ecbf053448@freenet.de/
Reported-by: Stuart Meckle <stuartmeckle@gmail.com>
Closes: https://bugzilla.kernel.org/show_bug.cgi?id=221473
Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: K Prateek Nayak <kprateek.nayak@amd.com>
Link: https://lore.kernel.org/r/20260512221947.1652988-1-mario.limonciello@amd.com
(fix sysfs file path)
Signed-off-by: Mario Limonciello (AMD) <superm1@kernel.org>
2026-05-14 08:47:48 -05:00
Ricardo Neri
ee047fc7a2 Documentation: intel_pstate: Fix description of asymmetric packing with SMT
Patchset [1], including commits

 046a5a95c3 ("x86/sched/itmt: Give all SMT siblings of a core the same priority")
 995998ebde ("x86/sched: Remove SD_ASYM_PACKING from the SMT domain flags")

overhauled asym_packing handling in the scheduler on x86 hybrid
processors with SMT. It removed SD_ASYM_PACKING from the x86 SMT
scheduling domain and made all SMT siblings of a core share the same
priority. As a result, asym_packing operates only across physical
cores, spreading tasks among them and only using idle SMT siblings
once all physical cores are busy.

Fix the documentation to reflect this behavior.

Fixes: f20af84c29 ("cpufreq: intel_pstate: Document hybrid processor support")
Link: https://lore.kernel.org/r/20230406203148.19182-1-ricardo.neri-calderon@linux.intel.com [1]
Signed-off-by: Ricardo Neri <ricardo.neri-calderon@linux.intel.com>
[ rjw: Changelog edits ]
Link: https://patch.msgid.link/20260424-rneri-fix-intel-pstate-doc-smt-asym-packing-v1-1-317bf7d5c362@linux.intel.com
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
2026-05-13 21:39:38 +02:00
Ingo Molnar
d8b55ce0c9 x86/fpu: Remove the 'no387' boot option
Without math emulation there's no point to this option.

Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Ahmed S. Darwish <darwi@linutronix.de>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/r/20250425084216.3913608-10-mingo@kernel.org
2026-05-08 07:34:03 +02:00
Jakub Kicinski
6a4c4656b0 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.1-rc3).

Conflicts:

net/ipv4/igmp.c
  726fa7da2d ("ipv4: igmp: get rid of IGMPV3_{QQIC,MRC} and simplify calculation")
  c6bebaa744 ("ipv4: igmp: annotate data-races in igmp_heard_query()")
https://lore.kernel.org/a7365e4873340f7a5e30411207de3bf9@kernel.org

Adjacent changes:

net/psp/psp_main.c
  30cb24f97d ("psp: strip variable-length PSP header in psp_dev_rcv()")
  c2b22277ad ("psp: validate IPv4 header fields in psp_dev_rcv()")

net/sched/sch_fq_codel.c
  f83e07b292 ("net/sched: sch_fq_codel: annotate data-races from fq_codel_dump_class_stats()")
  3f3aa77ff1 ("net/sched: add qstats_cpu_drop_inc() helper")

net/wireless/pmsr.c
  0f3c0a1973 ("wifi: nl80211: fix NL80211_PMSR_FTM_REQ_ATTR_FTMS_PER_BURST usage")
  410aa47fd9 ("wifi: cfg80211: allow suppressing FTM result reporting for PD requests")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-07 11:19:07 -07:00
Bin Du
3cd9b70115 Documentation: add documentation of AMD isp 4 driver
Add documentation for AMD ISP 4 and describe the main components

Co-developed-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com>
Signed-off-by: Svetoslav Stoilov <Svetoslav.Stoilov@amd.com>
Signed-off-by: Bin Du <Bin.Du@amd.com>
Reviewed-by: Mario Limonciello (AMD) <superm1@kernel.org>
Reviewed-by: Sultan Alsawaf <sultan@kerneltoast.com>
Tested-by: Alexey Zagorodnikov <xglooom@gmail.com>
Tested-by: Kate Hsuan <hpa@redhat.com>
Signed-off-by: Sakari Ailus <sakari.ailus@linux.intel.com>
2026-05-06 13:48:10 +03:00
Maciej Wieczor-Retman
6cf1c1e9f2
platform/x86/intel-uncore-freq: Expose instance ID in the sysfs
Insufficient data is exported to allow direct access to TPMI registers
through MMIO. On non-partitioned systems domain_id can be used both for
mapping CPUs to their compute die IDs and for mapping die indices to
their MMIO memory blocks presented to userspace via TPMI debugfs.
However on partitioned systems the debugfs association doesn't work
anymore. This is due to how TPMI partitioning influences domain_id
calculation. The previous association is lost on partitioned systems in
order to keep using domain_id for mapping CPUs to compute dies.

Expose the instance ID in sysfs that's unique in the scope of one TPMI
partition (and hence one TPMI device). It's a physical index into mapped
MMIO blocks and can be used by userspace to figure out how to directly
access TPMI registers.

Signed-off-by: Maciej Wieczor-Retman <maciej.wieczor-retman@intel.com>
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Link: https://patch.msgid.link/b9ae8d5f1ab86bcdb1a8636fa48865a9e49e2e21.1775665057.git.m.wieczorretman@pm.me
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
2026-05-06 13:36:50 +03:00
Linus Torvalds
11f00074f7 cgroup: Fixes for v7.1-rc2
- During v6.19, cgroup task unlink was moved from do_exit() to after the
   final task switch to satisfy a controller invariant. That left the kernel
   seeing tasks past exit_signals() longer than userspace expected, and
   several v7.0 follow-ups tried to bridge the gap by making rmdir wait for
   the kernel side. None held up. The latest is an A-A deadlock when rmdir
   is invoked by the reaper of zombies whose pidns teardown the rmdir itself
   is waiting on, which points at the synchronizing approach being
   fundamentally wrong:
 
   - Take a different approach: drop the wait, leave rmdir's user-visible
     side returning as soon as cgroup.procs is empty, and defer the css
     percpu_ref kill that drives ->css_offline() until the cgroup is fully
     depopulated.
 
   - Tagged for stable. Somewhat invasive but contained. The hope is that
     fixing forward sticks. If not, the fallback is to revert the entire
     chain and rework on the development branch.
 
   - Doesn't plug a pre-existing analogous race in
     cgroup_apply_control_disable() (controller disable via subtree_control).
     Not a regression. The development branch will do the more invasive
     restructuring needed for that.
 
 - Documentation update for cgroup-v1 charge-commit section that still
   referenced functions removed when the memcg hugetlb try-commit-cancel
   protocol was retired.
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Merge tag 'cgroup-for-7.1-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:

 - During v6.19, cgroup task unlink was moved from do_exit() to after the
   final task switch to satisfy a controller invariant. That left the kernel
   seeing tasks past exit_signals() longer than userspace expected, and
   several v7.0 follow-ups tried to bridge the gap by making rmdir wait for
   the kernel side. None held up.

   The latest is an A-A deadlock when rmdir is invoked by the reaper of
   zombies whose pidns teardown the rmdir itself is waiting on, which
   points at the synchronizing approach being fundamentally wrong.

   Take a different approach: drop the wait, leave rmdir's user-visible
   side returning as soon as cgroup.procs is empty, and defer the css
   percpu_ref kill that drives ->css_offline() until the cgroup is fully
   depopulated.

   Tagged for stable. Somewhat invasive but contained. The hope is that
   fixing forward sticks. If not, the fallback is to revert the entire
   chain and rework on the development branch.

   Note that this doesn't plug a pre-existing analogous race in
   cgroup_apply_control_disable() (controller disable via
   subtree_control). Not a regression. The development branch will do
   the more invasive restructuring needed for that.

 - Documentation update for cgroup-v1 charge-commit section that still
   referenced functions removed when the memcg hugetlb try-commit-cancel
   protocol was retired.

* tag 'cgroup-for-7.1-rc2-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  docs: cgroup-v1: Update charge-commit section
  cgroup: Defer css percpu_ref kill on rmdir until cgroup is depopulated
2026-05-05 15:43:32 -07:00
T.J. Mercier
d8769544bd docs: cgroup-v1: Update charge-commit section
Commit 1d8f136a42 ("memcg/hugetlb: remove memcg hugetlb
try-commit-cancel protocol") removed mem_cgroup_commit_charge() and
mem_cgroup_cancel_charge(), but the docs still refer to those functions.
There is no longer any charge cancellation.

Update the docs to match the code.

Signed-off-by: T.J. Mercier <tjmercier@google.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-05-04 11:02:12 -10:00
Sebastian Andrzej Siewior
75ff0feaa2 Documentation/kernel-parameters: Remove "Deprecated" from isolcpus=
The isolcpus= option has been marked as deprecated in 2017. Back then it
was desired for the domain sub option to be configured dynamically at
runtime instead using this boot command line which provides a static
configuration. In the meantime this option was extended by other sub
options which don't have runtime counterpart or it does not make sense
to provide one.

The deprecated part always referred to the default `domain' sub option
but it was not obvious. Also the reasoning behind the deprecation is
sort of dubious: There is nothing wrong with a static configuration if
there is no desired to reconfigure. This is useful on systems which
have one purpose and the CPU partition configuration is not changed for
the entire lifetime.

Remove the "Deprecated" note. Remove the part of the description which
suggest to use cpuset.sched_load_balance and instead point to the
documentation file which explains how to use cpusets to configure this
at runtime.

Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Acked-by: Waiman Long <longman@redhat.com>
Acked-by: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260427150739.bwVmmkj2@linutronix.de>
2026-05-03 09:09:15 -06:00
Costa Shulyupin
cb7083f9db docs: Remove stale ISDN parameters
The icn= and pcbit= parameters referenced drivers removed in
commit 02bbd9802d ("staging: i4l: delete the whole thing").

Remove the stale parameter entries and the now-unused ISDN tag
from the legend.

Suggested-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Costa Shulyupin <costa.shul@redhat.com>
Assisted-by: Claude:claude-opus-4-6
Acked-by: Randy Dunlap <rdunlap@infradead.org>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260502120206.1289126-1-costa.shul@redhat.com>
2026-05-03 08:36:03 -06:00
Arnd Bergmann
4fe18ddd17 ne2k: fold drivers/net/Space.c into ne.c
drivers/net/Space.c is the last remnant of the linux-2.4.x driver model
that required each subsystem and device driver init function to be called
from init/main.c explicitly, before the introduction of initcall levels.

In linux-7.0, this was only used for a handful of ISA network drivers,
with the ne2000 driver being the last one.

Fold the code into ne.c directly, with minimal changes to preserve
the existing command line parsing.

Signed-off-by: Arnd Bergmann <arnd@arndb.de>
Acked-by: Geert Uytterhoeven <geert@linux-m68k.org> # m68k
Reviewed-by: Simon Horman <horms@kernel.org>
Link: https://patch.msgid.link/20260429145624.2948432-2-arnd@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-05-01 16:46:53 -07:00
Hans de Goede
c9447f1013 Documentation: update deferred_probe_timeout cmdline parameter documentation
Extend the deferred_probe_timeout cmdline parameter documentation,
documenting that negative values are treated as an infinite timeout value.

Suggested-by: Danilo Krummrich <dakr@kernel.org>
Signed-off-by: Hans de Goede <johannes.goede@oss.qualcomm.com>
Link: https://patch.msgid.link/20260416144144.54547-1-johannes.goede@oss.qualcomm.com
Signed-off-by: Danilo Krummrich <dakr@kernel.org>
2026-04-28 23:51:49 +02:00
Linus Torvalds
3b3bea6d4b cgroup: Fixes for v7.1-rc1
- Fix UAF race in psi pressure_write() against cgroup file release by
   extending cgroup_mutex coverage and ordering of->priv access after
   cgroup_kn_lock_live().
 
 - Fix integer overflow in rdmacg_try_charge() when usage equals INT_MAX
   by performing the increment in s64.
 
 - Fix asymmetric DL bandwidth accounting on cpuset attach rollback by
   recording the CPU used by dl_bw_alloc() so cancel_attach() returns
   the reservation to the same root domain.
 
 - Fix nr_dying_subsys_* race that briefly showed 0 in cgroup.stat after
   rmdir by incrementing from kill_css() instead of offline_css().
 
 - Typo fix in cgroup-v2 documentation.
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Merge tag 'cgroup-for-7.1-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup

Pull cgroup fixes from Tejun Heo:

 - Fix UAF race in psi pressure_write() against cgroup file release by
   extending cgroup_mutex coverage and ordering of->priv access after
   cgroup_kn_lock_live()

 - Fix integer overflow in rdmacg_try_charge() when usage equals INT_MAX
   by performing the increment in s64

 - Fix asymmetric DL bandwidth accounting on cpuset attach rollback by
   recording the CPU used by dl_bw_alloc() so cancel_attach() returns
   the reservation to the same root domain

 - Fix nr_dying_subsys_* race that briefly showed 0 in cgroup.stat after
   rmdir by incrementing from kill_css() instead of offline_css()

 - Typo fix in cgroup-v2 documentation

* tag 'cgroup-for-7.1-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  docs: cgroup: fix typo 'protetion' -> 'protection'
  cgroup: Increment nr_dying_subsys_* from rmdir context
  cgroup/cpuset: record DL BW alloc CPU for attach rollback
  cgroup/rdma: fix integer overflow in rdmacg_try_charge()
  sched/psi: fix race between file release and pressure write
2026-04-27 16:51:27 -07:00
Petr Vaněk
981cd33861 docs: cgroup: fix typo 'protetion' -> 'protection'
Fix a small typo in the description of the memory_hugetlb_accounting
mount option.

Signed-off-by: Petr Vaněk <arkamar@atlas.cz>
Signed-off-by: Tejun Heo <tj@kernel.org>
2026-04-27 07:55:40 -10:00
Charlie Jenkins
49984b903a Documentation/binfmt-misc.rst: Specify aux vector for "O" flag description
Instead of replacing the file path in the argument vector, the file
descriptor is passed as AT_EXECFD in the auxilary vector. This appears
to have been the case at least since the git port, update the
documentation to reflect this.

Signed-off-by: Charlie Jenkins <thecharlesjenkins@gmail.com>
Signed-off-by: Jonathan Corbet <corbet@lwn.net>
Message-ID: <20260418-binfmt_misc_doc_update-v1-1-c2e9601ab868@gmail.com>
2026-04-27 03:58:19 -06:00
Linus Torvalds
64edfa6506 Delete some obsolete networking code
Old code like amateur radio and NFC have long been a burden
 to core networking developers. syzbot loves to find bugs
 in BKL-era code, and noobs try to fix them.
 
 If we want to have a fighting chance of surviving the LLM-pocalypse
 this code needs to find a dedicated owner or get deleted.
 We've talked about these deletions multiple times in the past
 and every time someone wanted the code to stay. It is never
 very clear to me how many of those people actually use the code
 vs are just nostalgic to see it go. Amateur radio did have
 occasional users (or so I think) but most users switched
 to user space implementations since its all super slow stuff.
 Nobody stepped up to maintain the kernel code.
 
 We were lucky enough to find someone who wants to help with NFC
 so we're giving that a chance. Let's try to put the rest of
 this code behind us.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking deletions from Jakub Kicinski:
 "Delete some obsolete networking code

  Old code like amateur radio and NFC have long been a burden to core
  networking developers. syzbot loves to find bugs in BKL-era code, and
  noobs try to fix them.

  If we want to have a fighting chance of surviving the LLM-pocalypse
  this code needs to find a dedicated owner or get deleted. We've talked
  about these deletions multiple times in the past and every time
  someone wanted the code to stay. It is never very clear to me how many
  of those people actually use the code vs are just nostalgic to see it
  go. Amateur radio did have occasional users (or so I think) but most
  users switched to user space implementations since its all super slow
  stuff. Nobody stepped up to maintain the kernel code.

  We were lucky enough to find someone who wants to help with NFC so
  we're giving that a chance. Let's try to put the rest of this code
  behind us"

* tag 'net-deletions' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next:
  drivers: net: 8390: wd80x3: Remove this driver
  drivers: net: 8390: ultra: Remove this driver
  drivers: net: 8390: AX88190: Remove this driver
  drivers: net: fujitsu: fmvj18x: Remove this driver
  drivers: net: smsc: smc91c92: Remove this driver
  drivers: net: smsc: smc9194: Remove this driver
  drivers: net: amd: nmclan: Remove this driver
  drivers: net: amd: lance: Remove this driver
  drivers: net: 3com: 3c589: Remove this driver
  drivers: net: 3com: 3c574: Remove this driver
  drivers: net: 3com: 3c515: Remove this driver
  drivers: net: 3com: 3c509: Remove this driver
  net: packetengines: remove obsolete yellowfin driver and vendor dir
  net: packetengines: remove obsolete hamachi driver
  net: remove unused ATM protocols and legacy ATM device drivers
  net: remove ax25 and amateur radio (hamradio) subsystem
  net: remove ISDN subsystem and Bluetooth CMTP
  caif: remove CAIF NETWORK LAYER
2026-04-24 09:41:58 -07:00
Jakub Kicinski
dd8d4bc28a net: remove ax25 and amateur radio (hamradio) subsystem
Remove the amateur radio (AX.25, NET/ROM, ROSE) protocol implementation
and all associated hamradio device drivers from the kernel tree.
This set of protocols has long been a huge bug/syzbot magnet,
and since nobody stepped up to help us deal with the influx
of the AI-generated bug reports we need to move it out of tree
to protect our sanity.

The code is moved to an out-of-tree repo:
https://github.com/linux-netdev/mod-orphan
if it's cleaned up and reworked there we can accept it back.

Minimal stub headers are kept for include/net/ax25.h (AX25_P_IP,
AX25_ADDR_LEN, ax25_address) and include/net/rose.h (ROSE_ADDR_LEN)
so that the conditional integration code in arp.c and tun.c continues
to compile and work when the out-of-tree modules are loaded.

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Stephen Hemminger <stephen@networkplumber.org>
Acked-by: Carlos Bilbao <carlos.bilbao@kernel.org>
Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Kuniyuki Iwashima <kuniyu@google.com>
Acked-by: Toke Høiland-Jørgensen <toke@toke.dk>
Link: https://patch.msgid.link/20260421021824.1293976-1-kuba@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-04-23 10:24:02 -07:00
Linus Torvalds
da6b5aae84 platform-drivers-x86 for v7.1-1
Highlights:
 
 - asus-wmi:
   - Retain battery charge threshold during boot which avoids unsolicited
     change to 100%. Return -ENODATA when the limit is not yet known
   - Improve screenpad power/brightness handling consistency
   - Fix screenpad brightness range
 
 - barco-p50-gpio: Normalize gpio_get return values
 
 - bitland-mifs-wmi: Add driver for Bitland laptops (supports platform
                     profile,hwmon, kbd backlight, gpu mode, hotkeys, and
                     fan boost)
 
 - dell_rbu: Fix using uninitialized value in sysfs write function
 
 - dell-wmi-sysman: Respect destination length when constructing enum
                    strings
 
 - hp-wmi:
   - Propagate fan setting apply failures and log an error
   - Fix sysfs write vs work handler cancel_delayed_work_sync() deadlock
   - Correct keepalive schedule_delayed_work() to mod_delayed_work()
   - Fix u8 underflows in GPU delta calculation
   - Use mutex to protect fan pwm/mode
   - Ignore kbd backlight and FnLock key events that are handled by FW
   - Fix fan table parsing (use correct field)
   - Add support for Omen 14-fb0xxx, 16-n0xxx, 16-wf1xxx, and Omen MAX
     16-ak0xxxx
 
 - input: trackpoint & thinkpad_acpi: Enable doubletap by default and
                                      add sysfs enable/disable
 
 - int3472: Add support for GPIO type 0x02 (IR flood LED)
 
 - intel-speed-select: (updated to v1.26)
   - Avoid using current base frequency as maximum
   - Fix CPU extended family ID decoding
   - Fix exit code
   - Improve error reporting
 
 - intel/vsec: Refactor to support ACPI-enumerated PMT endpoints.
 
 - pcengines-apuv2: Attach software node to the gpiochip
 
 - uniwill:
   - Refactor hwmon to smaller parts to accomodate HW diversity
   - Support USB-C power/performance priority switch through sysfs
   - Add another XMG Fusion 15 (L19) DMI vendor
   - Enable fine-grained features to device lineup mapping
 
 - wmi: Perform output size check within WMI core to allow simpler WMI
        drivers
 
 - acpi_driver -> platform driver conversions (a large number of changes
   from Rafael J. Wysocki)
 
 - Miscellaneous cleanups / refactoring / improvements
 
 The following is an automated shortlog grouped by driver:
 
 acer-wireless:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 asus-laptop:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 asus-wireless:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 asus-wmi:
  -  adjust screenpad power/brightness handling
  -  do not enforce a battery charge threshold
  -  fix screenpad brightness range
 
 barco-p50-gpio:
  -  convert to guard() notation
  -  normalize return value of gpio_get
 
 bitland-mifs-wmi:
  -  Add new Bitland MIFS WMI driver
 
 dell/dell-rbtn:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 dell_rbu:
  -  avoid uninit value usage in packet_size_write()
 
 dell-wmi-sysman:
  -  bound enumeration string aggregation
  -  Clean up security buffer helpers
  -  Fix typo in function comment
  -  Use standard kobj_sysfs_ops
  -  Use sysfs_emit{_at} in show functions
 
 Documentation: laptops:
  -  Update documentation for uniwill laptops
 
 Documentation:
  -  thinkpad-acpi - Document doubletap_enable attribute
 
 eeepc-laptop:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 fujitsu:
  -  Convert backlight driver to a platform one
  -  Convert laptop driver to a platform one
  -  Register ACPI notify handlers directly
  -  Reorder code to avoid forward declarations
 
 fujitsu-tablet:
  -  Convert ACPI driver to a platform one
 
 hp-wmi:
  -  add locking for concurrent hwmon access
  -  add Omen 14-fb0xxx (board 8C58) support
  -  Add support for Omen 16-n0xxx (8A44)
  -  Add support for Omen 16-wf1xxx (8C77)
  -  Add support for OMEN MAX 16-ak0xxx (8D87)
  -  avoid cancel_delayed_work_sync from work handler
  -  fix fan table parsing
  -  fix ignored return values in fan settings
  -  fix u8 underflow in gpu_delta calculation
  -  Ignore backlight and FnLock events
  -  use mod_delayed_work to reset keep-alive timer
 
 input:
  -  trackpoint - Enable doubletap by default on capable devices
 
 int3472:
  -  Add support for GPIO type 0x02 (IR flood LED)
  -  Parameterize LED con_id in registration
  -  Rename pled to led in LED registration code
  -  Use local variable for LED struct access
 
 intel/rst:
  -  Convert ACPI driver to a platform one
 
 intel/smartconnect:
  -  Convert ACPI driver to a platform one
 
 intel/tpmi:
  -  Use 32 bit aligned address for debugfs mem write
 
 intel/vsec:
  -  Decouple add/link helpers from PCI
  -  Make driver_data info const
  -  Plumb ACPI PMT discovery tables through vsec
  -  Refactor base_addr handling
  -  Return real error codes from registration path
  -  Switch exported helpers from pci_dev to device
 
 lg-laptop:
  -  Convert ACPI driver to a platform one
  -  Drop debug-only ACPI notify handler
 
 nvsw-sn2201:
  -  Drop unused include
 
 panasonic-laptop:
  -  Convert ACPI driver to a platform one
  -  Fix OPTD notifier registration and cleanup
  -  Make pcc_register_optd_notifier() void
  -  Register ACPI notify handler directly
  -  Remove redundant checks from 3 functions
 
 pcengines-apuv2:
  -  attach software node to the gpiochip
 
 sony-laptop:
  -  Convert NC driver to a platform one
  -  Convert PIC driver to a platform one
  -  Register ACPI notify handler directly
 
 surface: hotplug:
  -  Correct inclusion for GPIO APIs
 
 surface: surfacepro3_button:
  -  Convert to a platform driver
  -  Drop wakeup source on remove
  -  Register ACPI notify handler
 
 system76:
  -  Convert ACPI driver to a platform one
  -  Drop redundant devm_led_classdev_unregister()
  -  Register ACPI notify handler directly
 
 thinkpad_acpi:
  -  Add sysfs control for TrackPoint double-tap
  -  Drop ACPI driver registration
  -  remove obsolete TODO comment
  -  use seq_puts() instead of seq_printf()
 
 tools/power/x86/intel-speed-select:
  -  Avoid current base freq as maximum
  -  Fix cpu extended family ID decoding
  -  Fix output when running on unsupported CLX platforms
  -  Fix some program return value
  -  Print Version info when Incompatible API version is detected
  -  v1.26 release
 
 topstar-laptop:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 toshiba_acpi:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
  -  Reorder code to avoid forward declaration
 
 toshiba_bluetooth:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 toshiba_haps:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 uniwill-laptop:
  -  Apply features across all TUXEDO devices
  -  Fix signedness bug
  -  Fix XMG Fusion 15 (L19) entries
  -  Implement USB-C power priority setting
  -  Rework hwmon feature defines
 
 wireless-hotkey:
  -  Convert ACPI driver to a platform one
  -  Register ACPI notify handler directly
 
 wmi:
  -  Add wmidev_invoke_procedure()
  -  Convert drivers to use wmidev_invoke_procedure()
  -  Extend wmidev_invoke_method() to reject undersized data
  -  Extend wmidev_query_block() to reject undersized data
  -  Prepare to reject undersized unmarshalling results
  -  Replace .no_notify_data with .min_event_size
 
 x86:
  -  remove unnecessary module_init/exit() functions
 
 Merges:
  -  Merge branch 'intel-sst' of https://github.com/spandruvada/linux-kernel into review-ilpo-next
  -  Merge tag 'fixes' into 'for-next'
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Merge tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86

Pull x86 platform driver updates from Ilpo Järvinen:
 "asus-wmi:
   - Retain battery charge threshold during boot which avoids
     unsolicited change to 100%. Return -ENODATA when the limit
     is not yet known
   - Improve screenpad power/brightness handling consistency
   - Fix screenpad brightness range

  barco-p50-gpio:
   - Normalize gpio_get return values

  bitland-mifs-wmi:
   - Add driver for Bitland laptops (supports platform profile,
     hwmon, kbd backlight, gpu mode, hotkeys, and fan boost)

  dell_rbu:
   - Fix using uninitialized value in sysfs write function

  dell-wmi-sysman:
   - Respect destination length when constructing enum strings

  hp-wmi:
   - Propagate fan setting apply failures and log an error
   - Fix sysfs write vs work handler cancel_delayed_work_sync() deadlock
   - Correct keepalive schedule_delayed_work() to mod_delayed_work()
   - Fix u8 underflows in GPU delta calculation
   - Use mutex to protect fan pwm/mode
   - Ignore kbd backlight and FnLock key events that are handled by FW
   - Fix fan table parsing (use correct field)
   - Add support for Omen 14-fb0xxx, 16-n0xxx, 16-wf1xxx, and
     Omen MAX 16-ak0xxxx

  input: trackpoint & thinkpad_acpi:
   - Enable doubletap by default and add sysfs enable/disable

  int3472:
   - Add support for GPIO type 0x02 (IR flood LED)

  intel-speed-select: (updated to v1.26)
   - Avoid using current base frequency as maximum
   - Fix CPU extended family ID decoding
   - Fix exit code
   - Improve error reporting

  intel/vsec:
   - Refactor to support ACPI-enumerated PMT endpoints.

  pcengines-apuv2:
   - Attach software node to the gpiochip

  uniwill:
   - Refactor hwmon to smaller parts to accomodate HW diversity
   - Support USB-C power/performance priority switch through sysfs
   - Add another XMG Fusion 15 (L19) DMI vendor
   - Enable fine-grained features to device lineup mapping

  wmi:
   - Perform output size check within WMI core to allow simpler WMI
     drivers

  misc:
   - acpi_driver -> platform driver conversions (a large number of
     changes from Rafael J. Wysocki)
   - cleanups / refactoring / improvements"

* tag 'platform-drivers-x86-v7.1-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (106 commits)
  platform/x86: hp-wmi: Add support for Omen 16-wf1xxx (8C77)
  platform/x86: hp-wmi: Add support for Omen 16-n0xxx (8A44)
  platform/x86: hp-wmi: Add support for OMEN MAX 16-ak0xxx (8D87)
  platform/x86: hp-wmi: fix fan table parsing
  platform/x86: hp-wmi: add Omen 14-fb0xxx (board 8C58) support
  platform/wmi: Replace .no_notify_data with .min_event_size
  platform/wmi: Extend wmidev_query_block() to reject undersized data
  platform/wmi: Extend wmidev_invoke_method() to reject undersized data
  platform/wmi: Prepare to reject undersized unmarshalling results
  platform/wmi: Convert drivers to use wmidev_invoke_procedure()
  platform/wmi: Add wmidev_invoke_procedure()
  platform/x86: int3472: Add support for GPIO type 0x02 (IR flood LED)
  platform/x86: int3472: Parameterize LED con_id in registration
  platform/x86: int3472: Rename pled to led in LED registration code
  platform/x86: int3472: Use local variable for LED struct access
  platform/x86: thinkpad_acpi: remove obsolete TODO comment
  platform/x86: dell-wmi-sysman: bound enumeration string aggregation
  platform/x86: hp-wmi: Ignore backlight and FnLock events
  platform/x86: uniwill-laptop: Fix signedness bug
  platform/x86: dell_rbu: avoid uninit value usage in packet_size_write()
  ...
2026-04-20 12:02:24 -07:00
Linus Torvalds
36d179fd6b NFSD 7.1 Release Notes
Benjamin Coddington contributed filehandle signing to defend against
 filehandle-guessing attacks. The server now appends a SipHash-2-4
 MAC to each filehandle when the new "sign_fh" export option is
 enabled. NFSD then verifies filehandles received from clients
 against the expected MAC; mismatches return NFS error STALE.
 
 Chuck Lever converted the entire NLMv4 server-side XDR layer from
 hand-written C to xdrgen-generated code, spanning roughly thirty
 patches. XDR functions are generally boilerplate code and are easy
 to get wrong. The goals of this conversion are improved memory
 safety, lower maintenance burden, and groundwork for eventual Rust
 code generation for these functions.
 
 Dai Ngo improved pNFS block/SCSI layout robustness with two related
 changes. SCSI persistent reservation fencing is now tracked per
 client and per device via an xarray, to avoid both redundant preempt
 operations on devices already fenced and a potential NFSD deadlock
 when all nfsd threads are waiting for a layout return.
 
 The remaining patches deliver scalability and infrastructure
 improvements. Sincere thanks to all contributors, reviewers,
 testers, and bug reporters who participated in the v7.1 NFSD
 development cycle.
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Merge tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:

 - filehandle signing to defend against filehandle-guessing attacks
   (Benjamin Coddington)

   The server now appends a SipHash-2-4 MAC to each filehandle when
   the new "sign_fh" export option is enabled. NFSD then verifies
   filehandles received from clients against the expected MAC;
   mismatches return NFS error STALE

 - convert the entire NLMv4 server-side XDR layer from hand-written C to
   xdrgen-generated code, spanning roughly thirty patches (Chuck Lever)

   XDR functions are generally boilerplate code and are easy to get
   wrong. The goals of this conversion are improved memory safety, lower
   maintenance burden, and groundwork for eventual Rust code generation
   for these functions.

 - improve pNFS block/SCSI layout robustness with two related changes
   (Dai Ngo)

   SCSI persistent reservation fencing is now tracked per client and
   per device via an xarray, to avoid both redundant preempt operations
   on devices already fenced and a potential NFSD deadlock when all nfsd
   threads are waiting for a layout return.

 - scalability and infrastructure improvements

   Sincere thanks to all contributors, reviewers, testers, and bug
   reporters who participated in the v7.1 NFSD development cycle.

* tag 'nfsd-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (83 commits)
  NFSD: Docs: clean up pnfs server timeout docs
  nfsd: fix comment typo in nfsxdr
  nfsd: fix comment typo in nfs3xdr
  NFSD: convert callback RPC program to per-net namespace
  NFSD: use per-operation statidx for callback procedures
  svcrdma: Use contiguous pages for RDMA Read sink buffers
  SUNRPC: Add svc_rqst_page_release() helper
  SUNRPC: xdr.h: fix all kernel-doc warnings
  svcrdma: Factor out WR chain linking into helper
  svcrdma: Add Write chunk WRs to the RPC's Send WR chain
  svcrdma: Clean up use of rdma->sc_pd->device
  svcrdma: Clean up use of rdma->sc_pd->device in Receive paths
  svcrdma: Add fair queuing for Send Queue access
  SUNRPC: Optimize rq_respages allocation in svc_alloc_arg
  SUNRPC: Track consumed rq_pages entries
  svcrdma: preserve rq_next_page in svc_rdma_save_io_pages
  SUNRPC: Handle NULL entries in svc_rqst_release_pages
  SUNRPC: Allocate a separate Reply page array
  SUNRPC: Tighten bounds checking in svc_rqst_replace_page
  NFSD: Sign filehandles
  ...
2026-04-20 10:44:02 -07:00
Linus Torvalds
40735a683b mm.git review status for linus..mm-stable
Everything:
 
 Total patches:       121
 Reviews/patch:       2.11
 Reviewed rate:       90%
 
 Excluding DAMON:
 
 Total patches:       113
 Reviews/patch:       2.25
 Reviewed rate:       96%
 
 - The 33 patch series "Eliminate Dying Memory Cgroup" from Qi Zheng and
   Muchun Song addresses the longstanding "dying memcg problem".  A
   situation wherein a no-longer-used memory control group will hang around
   for an extended period pointlessly consuming memory.  The [0/N]
   changelog has a good overview of this work.
 
 - The 3 patch series "fix unexpected type conversions and potential
   overflows" from Qi Zheng fixes a couple of potential 32-bit/64-bit
   issues which were identified during review of the "Eliminate Dying
   Memory Cgroup" series.
 
 - The 6 patch series "kho: history: track previous kernel version and
   kexec boot count" from Breno Leitao uses Kexec Handover (KHO) to pass
   the previous kernel's version string and the number of kexec reboots
   since the last cold boot to the next kernel, and prints it at boot time.
 
 - The 4 patch series "liveupdate: prevent double preservation" from
   Pasha Tatashin teaches LUO to avoid managing the same file across
   different active sessions.
 
 - The 10 patch series "liveupdate: Fix module unloading and unregister
   API" from Pasha Tatashin addresses an issue with how LUO handles module
   reference counting and unregistration during module unloading.
 
 - The 2 patch series "zswap pool per-CPU acomp_ctx simplifications" from
   Kanchana Sridhar simplifies and cleans up the zswap crypto compression
   handling and improves the lifecycle management of zswap pool's per-CPU
   acomp_ctx resources.
 
 - The 2 patch series "mm/damon/core: fix damon_call()/damos_walk() vs
   kdmond exit race" from SeongJae Park addresses unlikely but possible
   leaks and deadlocks in damon_call() and damon_walk().
 
 - The 2 patch series "mm/damon/core: validate damos_quota_goal->nid"
   from SeongJae Park fixes a couple of root-only wild pointer
   dereferences.
 
 - The 2 patch series "Docs/admin-guide/mm/damon: warn commit_inputs vs
   other params race" from SeongJae Park updates the DAMON documentation to
   warn operators about potential races which can occur if the
   commit_inputs parameter is altered at the wrong time.
 
 - The 3 patch series "Minor hmm_test fixes and cleanups" from Alistair
   Popple implements two bugfixes a cleanup for the HMM kernel selftests.
 
 - The 6 patch series "Modify memfd_luo code" from Chenghao Duan provides
   cleanups, simplifications and speedups in the memfd_lou code.
 
 - The 4 patch series "mm, kvm: allow uffd support in guest_memfd" from
   Mike Rapoport enables support for userfaultfd in guest_memfd.
 
 - The 6 patch series "selftests/mm: skip several tests when thp is not
   available" from Chunyu Hu fixes several issues in the selftests code
   which were causing breakage when the tests were run on CONFIG_THP=n
   kernels.
 
 - The 2 patch series "mm/mprotect: micro-optimization work" from Pedro
   Falcato implements a couple of nice speedups for mprotect().
 
 - The 3 patch series "MAINTAINERS: update KHO and LIVE UPDATE entries"
   from Pratyush Yadav reflects upcoming changes in the maintenance of KHO,
   LUO, memfd_luo, kexec, crash, kdump and probably other kexec-based
   things - they are being moved out of mm.git and into a new git tree.
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Merge tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull more MM updates from Andrew Morton:

 - "Eliminate Dying Memory Cgroup" (Qi Zheng and Muchun Song)

   Address the longstanding "dying memcg problem". A situation wherein a
   no-longer-used memory control group will hang around for an extended
   period pointlessly consuming memory

 - "fix unexpected type conversions and potential overflows" (Qi Zheng)

   Fix a couple of potential 32-bit/64-bit issues which were identified
   during review of the "Eliminate Dying Memory Cgroup" series

 - "kho: history: track previous kernel version and kexec boot count"
   (Breno Leitao)

   Use Kexec Handover (KHO) to pass the previous kernel's version string
   and the number of kexec reboots since the last cold boot to the next
   kernel, and print it at boot time

 - "liveupdate: prevent double preservation" (Pasha Tatashin)

   Teach LUO to avoid managing the same file across different active
   sessions

 - "liveupdate: Fix module unloading and unregister API" (Pasha
   Tatashin)

   Address an issue with how LUO handles module reference counting and
   unregistration during module unloading

 - "zswap pool per-CPU acomp_ctx simplifications" (Kanchana Sridhar)

   Simplify and clean up the zswap crypto compression handling and
   improve the lifecycle management of zswap pool's per-CPU acomp_ctx
   resources

 - "mm/damon/core: fix damon_call()/damos_walk() vs kdmond exit race"
   (SeongJae Park)

   Address unlikely but possible leaks and deadlocks in damon_call() and
   damon_walk()

 - "mm/damon/core: validate damos_quota_goal->nid" (SeongJae Park)

   Fix a couple of root-only wild pointer dereferences

 - "Docs/admin-guide/mm/damon: warn commit_inputs vs other params race"
   (SeongJae Park)

   Update the DAMON documentation to warn operators about potential
   races which can occur if the commit_inputs parameter is altered at
   the wrong time

 - "Minor hmm_test fixes and cleanups" (Alistair Popple)

   Bugfixes and a cleanup for the HMM kernel selftests

 - "Modify memfd_luo code" (Chenghao Duan)

   Cleanups, simplifications and speedups to the memfd_lou code

 - "mm, kvm: allow uffd support in guest_memfd" (Mike Rapoport)

   Support for userfaultfd in guest_memfd

 - "selftests/mm: skip several tests when thp is not available" (Chunyu
   Hu)

   Fix several issues in the selftests code which were causing breakage
   when the tests were run on CONFIG_THP=n kernels

 - "mm/mprotect: micro-optimization work" (Pedro Falcato)

   A couple of nice speedups for mprotect()

 - "MAINTAINERS: update KHO and LIVE UPDATE entries" (Pratyush Yadav)

   Document upcoming changes in the maintenance of KHO, LUO, memfd_luo,
   kexec, crash, kdump and probably other kexec-based things - they are
   being moved out of mm.git and into a new git tree

* tag 'mm-stable-2026-04-18-02-14' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (121 commits)
  MAINTAINERS: add page cache reviewer
  mm/vmscan: avoid false-positive -Wuninitialized warning
  MAINTAINERS: update Dave's kdump reviewer email address
  MAINTAINERS: drop include/linux/liveupdate from LIVE UPDATE
  MAINTAINERS: drop include/linux/kho/abi/ from KHO
  MAINTAINERS: update KHO and LIVE UPDATE maintainers
  MAINTAINERS: update kexec/kdump maintainers entries
  mm/migrate_device: remove dead migration entry check in migrate_vma_collect_huge_pmd()
  selftests: mm: skip charge_reserved_hugetlb without killall
  userfaultfd: allow registration of ranges below mmap_min_addr
  mm/vmstat: fix vmstat_shepherd double-scheduling vmstat_update
  mm/hugetlb: fix early boot crash on parameters without '=' separator
  zram: reject unrecognized type= values in recompress_store()
  docs: proc: document ProtectionKey in smaps
  mm/mprotect: special-case small folios when applying permissions
  mm/mprotect: move softleaf code out of the main function
  mm: remove '!root_reclaim' checking in should_abort_scan()
  mm/sparse: fix comment for section map alignment
  mm/page_io: use sio->len for PSWPIN accounting in sio_read_complete()
  selftests/mm: transhuge_stress: skip the test when thp not available
  ...
2026-04-19 08:01:17 -07:00