Commit Graph

1351131 Commits

Author SHA1 Message Date
Linus Torvalds
bec7dcbc24 Merge tag 'probes-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace
Pull probes fixes from Masami Hiramatsu:

 - fprobe: remove fprobe_hlist_node when module unloading

   When a fprobe target module is removed, the fprobe_hlist_node should
   be removed from the fprobe's hash table to prevent reusing
   accidentally if another module is loaded at the same address.

 - fprobe: lock module while registering fprobe

   The module containing the function to be probeed is locked using a
   reference counter until the fprobe registration is complete, which
   prevents use after free.

 - fprobe-events: fix possible UAF on modules

   Basically as same as above, but in the fprobe-events layer we also
   need to get module reference counter when we find the tracepoint in
   the module.

* tag 'probes-fixes-v6.14' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  tracing: fprobe: Cleanup fprobe hash when module unloading
  tracing: fprobe events: Fix possible UAF on modules
  tracing: fprobe: Fix to lock module while registering fprobe
2025-04-08 12:51:34 -07:00
Linus Torvalds
e37f72b3b4 Merge tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup
Pull cgroup fixes from Tejun Heo:

 - A number of cpuset remote partition related fixes and cleanups along
   with selftest updates.

 - A change from this merge window made cgroup_rstat_updated_list()
   called outside cgroup_rstat_lock leading to list corruptions. Fix it
   by relocating the call inside the lock.

* tag 'cgroup-for-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup:
  cgroup/cpuset: Fix race between newly created partition and dying one
  cgroup: rstat: call cgroup_rstat_updated_list with cgroup_rstat_lock
  selftest/cgroup: Add a remote partition transition test to test_cpuset_prs.sh
  selftest/cgroup: Clean up and restructure test_cpuset_prs.sh
  selftest/cgroup: Update test_cpuset_prs.sh to use | as effective CPUs and state separator
  cgroup/cpuset: Remove unneeded goto in sched_partition_write() and rename it
  cgroup/cpuset: Code cleanup and comment update
  cgroup/cpuset: Don't allow creation of local partition over a remote one
  cgroup/cpuset: Remove remote_partition_check() & make update_cpumasks_hier() handle remote partition
  cgroup/cpuset: Fix error handling in remote_partition_disable()
  cgroup/cpuset: Fix incorrect isolated_cpus update in update_parent_effective_cpumask()
2025-04-08 12:15:05 -07:00
Linus Torvalds
97c484ccb8 Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux
Pull CRC cleanups from Eric Biggers:
 "Finish cleaning up the CRC kconfig options by removing the remaining
  unnecessary prompts and an unnecessary 'default y', removing
  CONFIG_LIBCRC32C, and documenting all the CRC library options"

* tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  lib/crc: remove CONFIG_LIBCRC32C
  lib/crc: document all the CRC library kconfig options
  lib/crc: remove unnecessary prompt for CONFIG_CRC_ITU_T
  lib/crc: remove unnecessary prompt for CONFIG_CRC_T10DIF
  lib/crc: remove unnecessary prompt for CONFIG_CRC16
  lib/crc: remove unnecessary prompt for CONFIG_CRC_CCITT
  lib/crc: remove unnecessary prompt for CONFIG_CRC32 and drop 'default y'
2025-04-08 12:09:28 -07:00
Nathan Chancellor
84ffc79bfb kbuild: Add '-fno-builtin-wcslen'
A recent optimization change in LLVM [1] aims to transform certain loop
idioms into calls to strlen() or wcslen(). This change transforms the
first while loop in UniStrcat() into a call to wcslen(), breaking the
build when UniStrcat() gets inlined into alloc_path_with_tree_prefix():

  ld.lld: error: undefined symbol: wcslen
  >>> referenced by nls_ucs2_utils.h:54 (fs/smb/client/../../nls/nls_ucs2_utils.h:54)
  >>>               vmlinux.o:(alloc_path_with_tree_prefix)
  >>> referenced by nls_ucs2_utils.h:54 (fs/smb/client/../../nls/nls_ucs2_utils.h:54)
  >>>               vmlinux.o:(alloc_path_with_tree_prefix)

Disable this optimization with '-fno-builtin-wcslen', which prevents the
compiler from assuming that wcslen() is available in the kernel's C
library.

[ More to the point - it's not that we couldn't implement wcslen(), it's
  that this isn't an optimization at all in the context of the kernel.

  Replacing a simple inlined loop with a function call to the same loop
  is just stupid and pointless if you don't have long strings and fancy
  libraries with vectorization support etc.

  For the regular 'strlen()' cases, we want the compiler to do this in
  order to handle the trivial case of constant strings. And we do have
  optimized versions of 'strlen()' on some architectures. But for
  wcslen? Just no.    - Linus ]

Cc: stable@vger.kernel.org
Link: 9694844d7e [1]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-08 12:03:26 -07:00
Masami Hiramatsu (Google)
a3dc2983ca tracing: fprobe: Cleanup fprobe hash when module unloading
Cleanup fprobe address hash table on module unloading because the
target symbols will be disappeared when unloading module and not
sure the same symbol is mapped on the same address.

Note that this is at least disables the fprobes if a part of target
symbols on the unloaded modules. Unlike kprobes, fprobe does not
re-enable the probe point by itself. To do that, the caller should
take care register/unregister fprobe when loading/unloading modules.
This simplifies the fprobe state managememt related to the module
loading/unloading.

Link: https://lore.kernel.org/all/174343534473.843280.13988101014957210732.stgit@devnote2/

Fixes: 4346ba1604 ("fprobe: Rewrite fprobe on function-graph tracer")
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2025-04-08 08:46:25 +09:00
Linus Torvalds
0af2f6be1b Linux 6.15-rc1 v6.15-rc1 2025-04-06 13:11:33 -07:00
Thomas Weißschuh
0efdedb335 tools/include: make uapi/linux/types.h usable from assembly
The "real" linux/types.h UAPI header gracefully degrades to a NOOP when
included from assembly code.

Mirror this behaviour in the tools/ variant.

Test for __ASSEMBLER__ over __ASSEMBLY__ as the former is provided by the
toolchain automatically.

Reported-by: Mark Brown <broonie@kernel.org>
Closes: https://lore.kernel.org/lkml/af553c62-ca2f-4956-932c-dd6e3a126f58@sirena.org.uk/
Fixes: c9fbaa8795 ("selftests: vDSO: parse_vdso: Use UAPI headers instead of libc headers")
Signed-off-by: Thomas Weißschuh <thomas.weissschuh@linutronix.de>
Link: https://patch.msgid.link/20250321-uapi-consistency-v1-1-439070118dc0@linutronix.de
Signed-off-by: Mark Brown <broonie@kernel.org>
Reviewed-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-06 12:55:31 -07:00
Linus Torvalds
710329254d Merge tag 'turbostat-2025.05.06' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux
Pull turbostat updates from Len Brown:

 - support up to 8192 processors

 - add cpuidle governor debug telemetry, disabled by default

 - update default output to exclude cpuidle invocation counts

 - bug fixes

* tag 'turbostat-2025.05.06' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: v2025.05.06
  tools/power turbostat: disable "cpuidle" invocation counters, by default
  tools/power turbostat: re-factor sysfs code
  tools/power turbostat: Restore GFX sysfs fflush() call
  tools/power turbostat: Document GNR UncMHz domain convention
  tools/power turbostat: report CoreThr per measurement interval
  tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192
  tools/power turbostat: Add idle governor statistics reporting
  tools/power turbostat: Fix names matching
  tools/power turbostat: Allow Zero return value for some RAPL registers
  tools/power turbostat: Clustered Uncore MHz counters should honor show/hide options
2025-04-06 12:32:43 -07:00
Linus Torvalds
59f392fa7c Merge tag 'soundwire-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire
Pull soundwire fix from Vinod Koul:

 - add missing config symbol CONFIG_SND_HDA_EXT_CORE required for asoc
   driver CONFIG_SND_SOF_SOF_HDA_SDW_BPT

* tag 'soundwire-6.15-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/vkoul/soundwire:
  ASoC: SOF: Intel: Let SND_SOF_SOF_HDA_SDW_BPT select SND_HDA_EXT_CORE
2025-04-06 12:04:53 -07:00
Len Brown
03e00e373c tools/power turbostat: v2025.05.06
Support up to 8192 processors
Add cpuidle governor debug telemetry, disabled by default
Update default output to exclude cpuidle invocation counts
Bug fixes

Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06 14:49:20 -04:00
Len Brown
ec4acd3166 tools/power turbostat: disable "cpuidle" invocation counters, by default
Create "pct_idle" counter group, the sofware notion of residency
so it can now be singled out, independent of other counter groups.

Create "cpuidle" group, the cpuidle invocation counts.
Disable "cpuidle", by default.

Create "swidle" = "cpuidle" + "pct_idle".
Undocument "sysfs", the old name for "swidle", but keep it working
for backwards compatibilty.

Create "hwidle", all the HW idle counters

Modify "idle", enabled by default
"idle" = "hwidle" + "pct_idle" (and now excludes "cpuidle")

Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06 14:29:57 -04:00
Linus Torvalds
dda8887894 Merge tag 'perf-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf event fix from Ingo Molnar:
 "Fix a perf events time accounting bug"

* tag 'perf-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/core: Fix child_total_time_enabled accounting bug at task exit
2025-04-06 10:48:12 -07:00
Linus Torvalds
302deb109d Merge tag 'sched-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler fixes from Ingo Molnar:

 - Fix a nonsensical Kconfig combination

 - Remove an unnecessary rseq-notification

* tag 'sched-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  rseq: Eliminate useless task_work on execve
  sched/isolation: Make CONFIG_CPU_ISOLATION depend on CONFIG_SMP
2025-04-06 10:44:58 -07:00
Linus Torvalds
6f110a5e4f Disable SLUB_TINY for build testing
... and don't error out so hard on missing module descriptions.

Before commit 6c6c1fc09d ("modpost: require a MODULE_DESCRIPTION()")
we used to warn about missing module descriptions, but only when
building with extra warnigns (ie 'W=1').

After that commit the warning became an unconditional hard error.

And it turns out not all modules have been converted despite the claims
to the contrary.  As reported by Damian Tometzki, the slub KUnit test
didn't have a module description, and apparently nobody ever really
noticed.

The reason nobody noticed seems to be that the slub KUnit tests get
disabled by SLUB_TINY, which also ends up disabling a lot of other code,
both in tests and in slub itself.  And so anybody doing full build tests
didn't actually see this failre.

So let's disable SLUB_TINY for build-only tests, since it clearly ends
up limiting build coverage.  Also turn the missing module descriptions
error back into a warning, but let's keep it around for non-'W=1'
builds.

Reported-by: Damian Tometzki <damian@riscv-rocks.de>
Link: https://lore.kernel.org/all/01070196099fd059-e8463438-7b1b-4ec8-816d-173874be9966-000000@eu-central-1.amazonses.com/
Cc: Masahiro Yamada <masahiroy@kernel.org>
Cc: Jeff Johnson <jeff.johnson@oss.qualcomm.com>
Fixes: 6c6c1fc09d ("modpost: require a MODULE_DESCRIPTION()")
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-04-06 10:00:04 -07:00
Len Brown
994633894f tools/power turbostat: re-factor sysfs code
Probe cpuidle "sysfs" residency and counts separately,
since soon we will make one disabled on, and the
other disabled off.

Clarify that some BIC (build-in-counters) are actually "groups".
since we're about to re-name some of those groups.

no functional change.

Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06 12:53:18 -04:00
Zhang Rui
f8b136ef26 tools/power turbostat: Restore GFX sysfs fflush() call
Do fflush() to discard the buffered data, before each read of the
graphics sysfs knobs.

Fixes: ba99a4fc8c ("tools/power turbostat: Remove unnecessary fflush() call")
Signed-off-by: Zhang Rui <rui.zhang@intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06 12:36:03 -04:00
Len Brown
3ae8508663 tools/power turbostat: Document GNR UncMHz domain convention
Document that on Intel Granite Rapids Systems,
Uncore domains 0-2 are CPU domains, and
uncore domains 3-4 are IO domains.

Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06 12:31:59 -04:00
Len Brown
f729775f79 tools/power turbostat: report CoreThr per measurement interval
The CoreThr column displays total thermal throttling events
since boot time.

Change it to report events during the measurement interval.

This is more useful for showing a user the current conditions.
Total events since boot time are still available to the user via
/sys/devices/system/cpu/cpu*/thermal_throttle/*

Document CoreThr on turbostat.8

Fixes: eae97e053f ("turbostat: Support thermal throttle count print")
Reported-by: Arjan van de Ven <arjan@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Cc: Chen Yu <yu.c.chen@intel.com>
2025-04-06 12:21:25 -04:00
Justin Ernst
eb187540d1 tools/power turbostat: Increase CPU_SUBSET_MAXCPUS to 8192
On systems with >= 1024 cpus (in my case 1152), turbostat fails with the error output:
	"turbostat: /sys/fs/cgroup/cpuset.cpus.effective: cpu str malformat 0-1151"

A similar error appears with the use of turbostat --cpu when the inputted cpu
range contains a cpu number >= 1024:
	# turbostat -c 1100-1151
	"--cpu 1100-1151" malformed
	...

Both errors are caused by parse_cpu_str() reaching its limit of CPU_SUBSET_MAXCPUS.

It's a good idea to limit the maximum cpu number being parsed, but 1024 is too low.
For a small increase in compute and allocated memory, increasing CPU_SUBSET_MAXCPUS
brings support for parsing cpu numbers >= 1024.

Increase CPU_SUBSET_MAXCPUS to 8192, a common setting for CONFIG_NR_CPUS on x86_64.

Signed-off-by: Justin Ernst <justin.ernst@hpe.com>
Signed-off-by: Len Brown <len.brown@intel.com>
2025-04-06 12:14:14 -04:00
Linus Torvalds
16cd1c2657 Merge tag 'timers-cleanups-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer cleanups from Thomas Gleixner:
 "A set of final cleanups for the timer subsystem:

   - Convert all del_timer[_sync]() instances over to the new
     timer_delete[_sync]() API and remove the legacy wrappers.

     Conversion was done with coccinelle plus some manual fixups as
     coccinelle chokes on scoped_guard().

   - The final cleanup of the hrtimer_init() to hrtimer_setup()
     conversion.

     This has been delayed to the end of the merge window, so that all
     patches which have been merged through other trees are in mainline
     and all new users are catched.

  Doing this right before rc1 ensures that new code which is merged post
  rc1 is not introducing new instances of the original functionality"

* tag 'timers-cleanups-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  tracing/timers: Rename the hrtimer_init event to hrtimer_setup
  hrtimers: Rename debug_init_on_stack() to debug_setup_on_stack()
  hrtimers: Rename debug_init() to debug_setup()
  hrtimers: Rename __hrtimer_init_sleeper() to __hrtimer_setup_sleeper()
  hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns()
  hrtimers: Make callback function pointer private
  hrtimers: Merge __hrtimer_init() into __hrtimer_setup()
  hrtimers: Switch to use __htimer_setup()
  hrtimers: Delete hrtimer_init()
  treewide: Convert new and leftover hrtimer_init() users
  treewide: Switch/rename to timer_delete[_sync]()
2025-04-06 08:35:37 -07:00
Linus Torvalds
ff0c66685d Merge tag 'irq-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull more irq updates from Thomas Gleixner:
 "A set of updates for the interrupt subsystem:

   - A treewide cleanup for the irq_domain code, which makes the naming
     consistent and gets rid of the original oddity of naming domains
     'host'.

     This is a trivial mechanical change and is done late to ensure that
     all instances have been catched and new code merged post rc1 wont
     reintroduce new instances.

   - A trivial consistency fix in the migration code

     The recent introduction of irq_force_complete_move() in the core
     code, causes a problem for the nostalgia crowd who maintains ia64
     out of tree.

     The code assumes that hierarchical interrupt domains are enabled
     and dereferences irq_data::parent_data unconditionally. That works
     in mainline because both architectures which enable that code have
     hierarchical domains enabled. Though it breaks the ia64 build,
     which enables the functionality, but does not have hierarchical
     domains.

     While it's not really a problem for mainline today, this
     unconditional dereference is inconsistent and trivially fixable by
     using the existing helper function irqd_get_parent_data(), which
     has the appropriate #ifdeffery in place"

* tag 'irq-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  genirq/migration: Use irqd_get_parent_data() in irq_force_complete_move()
  irqdomain: Stop using 'host' for domain
  irqdomain: Rename irq_get_default_host() to irq_get_default_domain()
  irqdomain: Rename irq_set_default_host() to irq_set_default_domain()
2025-04-06 08:17:43 -07:00
Linus Torvalds
a91c49517d Merge tag 'timers-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer fix from Thomas Gleixner:
 "A revert to fix a adjtimex() regression:

  The recent change to prevent that time goes backwards for the coarse
  time getters due to immediate multiplier adjustments via adjtimex(),
  changed the way how the timekeeping core treats that.

  That change result in a regression on the adjtimex() side, which is
  user space visible:

   1) The forwarding of the base time moves the update out of the
      original period and establishes a new one. That's changing the
      behaviour of the [PF]LL control, which user space expects to be
      applied periodically.

   2) The clearing of the accumulated NTP error due to #1, changes the
      behaviour as well.

  An attempt to delay the multiplier/frequency update to the next tick
  did not solve the problem as userspace expects that the multiplier or
  frequency updates are in effect, when the syscall returns.

  There is a different solution for the coarse time problem available,
  so revert the offending commit to restore the existing adjtimex()
  behaviour"

* tag 'timers-urgent-2025-04-06' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Revert "timekeeping: Fix possible inconsistencies in _COARSE clockids"
2025-04-06 08:13:16 -07:00
Linus Torvalds
1f80fbac0b Merge tag 'sh-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux
Pull sh updates from John Paul Adrian Glaubitz:
 "One important fix and one small configuration update.

  The first patch by Artur Rojek fixes an issue with the J2 firmware
  loader not being able to find the location of the device tree blob due
  to insufficient alignment of the .bss section which rendered J2 boards
  unbootable.

  The second patch by Johan Korsnes updates the defconfigs on sh to drop
  the CONFIG_NET_CLS_TCINDEX configuration option which became obsolete
  after 8c710f7525 ("net/sched: Retire tcindex classifier").

  Summary:

   - sh: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX

   - sh: Align .bss section padding to 8-byte boundary"

* tag 'sh-for-v6.15-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/glaubitz/sh-linux:
  sh: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX
  sh: Align .bss section padding to 8-byte boundary
2025-04-06 08:10:45 -07:00
Linus Torvalds
f4d2ef4825 Merge tag 'kbuild-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild
Pull Kbuild updates from Masahiro Yamada:

 - Improve performance in gendwarfksyms

 - Remove deprecated EXTRA_*FLAGS and KBUILD_ENABLE_EXTRA_GCC_CHECKS

 - Support CONFIG_HEADERS_INSTALL for ARCH=um

 - Use more relative paths to sources files for better reproducibility

 - Support the loong64 Debian architecture

 - Add Kbuild bash completion

 - Introduce intermediate vmlinux.unstripped for architectures that need
   static relocations to be stripped from the final vmlinux

 - Fix versioning in Debian packages for -rc releases

 - Treat missing MODULE_DESCRIPTION() as an error

 - Convert Nios2 Makefiles to use the generic rule for built-in DTB

 - Add debuginfo support to the RPM package

* tag 'kbuild-v6.15' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (40 commits)
  kbuild: rpm-pkg: build a debuginfo RPM
  kconfig: merge_config: use an empty file as initfile
  nios2: migrate to the generic rule for built-in DTB
  rust: kbuild: skip `--remap-path-prefix` for `rustdoc`
  kbuild: pacman-pkg: hardcode module installation path
  kbuild: deb-pkg: don't set KBUILD_BUILD_VERSION unconditionally
  modpost: require a MODULE_DESCRIPTION()
  kbuild: make all file references relative to source root
  x86: drop unnecessary prefix map configuration
  kbuild: deb-pkg: add comment about future removal of KDEB_COMPRESS
  kbuild: Add a help message for "headers"
  kbuild: deb-pkg: remove "version" variable in mkdebian
  kbuild: deb-pkg: fix versioning for -rc releases
  Documentation/kbuild: Fix indentation in modules.rst example
  x86: Get rid of Makefile.postlink
  kbuild: Create intermediate vmlinux build with relocations preserved
  kbuild: Introduce Kconfig symbol for linking vmlinux with relocations
  kbuild: link-vmlinux.sh: Make output file name configurable
  kbuild: do not generate .tmp_vmlinux*.map when CONFIG_VMLINUX_MAP=y
  Revert "kheaders: Ignore silly-rename files"
  ...
2025-04-05 15:46:50 -07:00
Linus Torvalds
758e4c86a1 Merge tag 'drm-next-2025-04-05' of https://gitlab.freedesktop.org/drm/kernel
Pull drm fixes from Dave Airlie:
 "Weekly fixes, mostly from the end of last week, this week was very
  quiet, maybe you scared everyone away. It's mostly amdgpu, and xe,
  with some i915, adp and bridge bits, since I think this is overly
  quiet I'd expect rc2 to be a bit more lively.

  bridge:
   - tda998x: Select CONFIG_DRM_KMS_HELPER

  amdgpu:
   - Guard against potential division by 0 in fan code
   - Zero RPM support for SMU 14.0.2
   - Properly handle SI and CIK support being disabled
   - PSR fixes
   - DML2 fixes
   - DP Link training fix
   - Vblank fixes
   - RAS fixes
   - Partitioning fix
   - SDMA fix
   - SMU 13.0.x fixes
   - Rom fetching fix
   - MES fixes
   - Queue reset fix

  xe:
   - Fix NULL pointer dereference on error path
   - Add missing HW workaround for BMG
   - Fix survivability mode not triggering
   - Fix build warning when DRM_FBDEV_EMULATION is not set

  i915:
   - Bounds check for scalers in DSC prefill latency computation
   - Fix build by adding a missing include

  adp:
   - Fix error handling in plane setup"

  # -----BEGIN PGP SIGNATURE-----

* tag 'drm-next-2025-04-05' of https://gitlab.freedesktop.org/drm/kernel: (34 commits)
  drm/i2c: tda998x: select CONFIG_DRM_KMS_HELPER
  drm/amdgpu/gfx12: fix num_mec
  drm/amdgpu/gfx11: fix num_mec
  drm/amd/pm: Add gpu_metrics_v1_8
  drm/amdgpu: Prefer shadow rom when available
  drm/amd/pm: Update smu metrics table for smu_v13_0_6
  drm/amd/pm: Remove host limit metrics support
  Remove unnecessary firmware version check for gc v9_4_2
  drm/amdgpu: stop unmapping MQD for kernel queues v3
  Revert "drm/amdgpu/sdma_v4_4_2: update VM flush implementation for SDMA"
  drm/amdgpu: Parse all deferred errors with UMC aca handle
  drm/amdgpu: Update ta ras block
  drm/amdgpu: Add NPS2 to DPX compatible mode
  drm/amdgpu: Use correct gfx deferred error count
  drm/amd/display: Actually do immediate vblank disable
  drm/amd/display: prevent hang on link training fail
  Revert "drm/amd/display: dml2 soc dscclk use DPM table clk setting"
  drm/amd/display: Increase vblank offdelay for PSR panels
  drm/amd: Handle being compiled without SI or CIK support better
  drm/amd/pm: Add zero RPM enabled OD setting support for SMU14.0.2
  ...
2025-04-05 15:35:11 -07:00
Uday Shankar
a7c699d090 kbuild: rpm-pkg: build a debuginfo RPM
The rpm-pkg make target currently suffers from a few issues related to
debuginfo:
1. debuginfo for things built into the kernel (vmlinux) is not available
   in any RPM produced by make rpm-pkg. This makes using tools like
   systemtap against a make rpm-pkg kernel impossible.
2. debug source for the kernel is not available. This means that
   commands like 'disas /s' in gdb, which display source intermixed with
   assembly, can only print file names/line numbers which then must be
   painstakingly resolved to actual source in a separate editor.
3. debuginfo for modules is available, but it remains bundled with the
   .ko files that contain module code, in the main kernel RPM. This is a
   waste of space for users who do not need to debug the kernel (i.e.
   most users).

Address all of these issues by additionally building a debuginfo RPM
when the kernel configuration allows for it, in line with standard
patterns followed by RPM distributors. With these changes:
1. systemtap now works (when these changes are backported to 6.11, since
   systemtap lags a bit behind in compatibility), as verified by the
   following simple test script:

   # stap -e 'probe kernel.function("do_sys_open").call { printf("%s\n", $$parms); }'
   dfd=0xffffffffffffff9c filename=0x7fe18800b160 flags=0x88800 mode=0x0
   ...

2. disas /s works correctly in gdb, with source and disassembly
   interspersed:

   # gdb vmlinux --batch -ex 'disas /s blk_op_str'
   Dump of assembler code for function blk_op_str:
   block/blk-core.c:
   125     {
      0xffffffff814c8740 <+0>:     endbr64

   127
   128             if (op < ARRAY_SIZE(blk_op_name) && blk_op_name[op])
      0xffffffff814c8744 <+4>:     mov    $0xffffffff824a7378,%rax
      0xffffffff814c874b <+11>:    cmp    $0x23,%edi
      0xffffffff814c874e <+14>:    ja     0xffffffff814c8768 <blk_op_str+40>
      0xffffffff814c8750 <+16>:    mov    %edi,%edi

   126             const char *op_str = "UNKNOWN";
      0xffffffff814c8752 <+18>:    mov    $0xffffffff824a7378,%rdx

   127
   128             if (op < ARRAY_SIZE(blk_op_name) && blk_op_name[op])
      0xffffffff814c8759 <+25>:    mov    -0x7dfa0160(,%rdi,8),%rax

   126             const char *op_str = "UNKNOWN";
      0xffffffff814c8761 <+33>:    test   %rax,%rax
      0xffffffff814c8764 <+36>:    cmove  %rdx,%rax

   129                     op_str = blk_op_name[op];
   130
   131             return op_str;
   132     }
      0xffffffff814c8768 <+40>:    jmp    0xffffffff81d01360 <__x86_return_thunk>
   End of assembler dump.

3. The size of the main kernel package goes down substantially,
   especially if many modules are built (quite typical). Here is a
   comparison of installed size of the kernel package (configured with
   allmodconfig, dwarf4 debuginfo, and module compression turned off)
   before and after this patch:

   # rpm -qi kernel-6.13* | grep -E '^(Version|Size)'
   Version     : 6.13.0postpatch+
   Size        : 1382874089
   Version     : 6.13.0prepatch+
   Size        : 17870795887

   This is a ~92% size reduction.

Note that a debuginfo package can only be produced if the following
configs are set:
- CONFIG_DEBUG_INFO=y
- CONFIG_MODULE_COMPRESS=n
- CONFIG_DEBUG_INFO_SPLIT=n

The first of these is obvious - we can't produce debuginfo if the build
does not generate it. The second two requirements can in principle be
removed, but doing so is difficult with the current approach, which uses
a generic rpmbuild script find-debuginfo.sh that processes all packaged
executables. If we want to remove those requirements the best path
forward is likely to add some debuginfo extraction/installation logic to
the modules_install target (controllable by flags). That way, it's
easier to operate on modules before they're compressed, and the logic
can be reused by all packaging targets.

Signed-off-by: Uday Shankar <ushankar@purestorage.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-04-06 06:22:01 +09:00
Daniel Gomez
a26fe287ee kconfig: merge_config: use an empty file as initfile
The scripts/kconfig/merge_config.sh script requires an existing
$INITFILE (or the $1 argument) as a base file for merging Kconfig
fragments. However, an empty $INITFILE can serve as an initial starting
point, later referenced by the KCONFIG_ALLCONFIG Makefile variable
if -m is not used. This variable can point to any configuration file
containing preset config symbols (the merged output) as stated in
Documentation/kbuild/kconfig.rst. When -m is used $INITFILE will
contain just the merge output requiring the user to run make (i.e.
KCONFIG_ALLCONFIG=<$INITFILE> make <allnoconfig/alldefconfig> or make
olddefconfig).

Instead of failing when `$INITFILE` is missing, create an empty file and
use it as the starting point for merges.

Signed-off-by: Daniel Gomez <da.gomez@samsung.com>
Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-04-06 06:22:01 +09:00
Masahiro Yamada
3b8241f64c nios2: migrate to the generic rule for built-in DTB
Commit 654102df2a ("kbuild: add generic support for built-in boot
DTBs") introduced generic support for built-in DTBs.

Select GENERIC_BUILTIN_DTB when built-in DTB support is enabled.

To keep consistency across architectures, this commit also renames
CONFIG_NIOS2_DTB_SOURCE_BOOL to CONFIG_BUILTIN_DTB, and
CONFIG_NIOS2_DTB_SOURCE to CONFIG_BUILTIN_DTB_NAME.

Signed-off-by: Masahiro Yamada <masahiroy@kernel.org>
2025-04-06 06:22:01 +09:00
Johan Korsnes
5f2efd67a1 sh: defconfig: Drop obsolete CONFIG_NET_CLS_TCINDEX
This option was removed from Kconfig in 8c710f7525 ("net/sched:
Retire tcindex classifier") but from the defconfigs.

Fixes: 8c710f7525 ("net/sched: Retire tcindex classifier")
Signed-off-by: Johan Korsnes <johan.korsnes@gmail.com>
Cc: Yoshinori Sato <ysato@users.sourceforge.jp>
Cc: Rich Felker <dalias@libc.org>
Cc: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2025-04-05 19:46:38 +02:00
Artur Rojek
427011db47 sh: Align .bss section padding to 8-byte boundary
J2-based devices expect to find a device tree blob at the end of the
.bss section. As of a77725a9a3 ("scripts/dtc: Update to upstream
version v1.6.1-19-g0a3a9d3449c8"), libfdt enforces 8-byte alignment
for the DTB, causing J2 devices to fail early in sh_fdt_init().

As the J2 loader firmware calculates the DTB location based on the kernel
image .bss section size rather than the __bss_stop symbol offset, the
required alignment can't be enforced with BSS_SECTION(0, PAGE_SIZE, 8).

To fix this, inline a modified version of the above macro which grows
.bss by the required size. While this change affects all existing SH
boards, it should be benign on platforms which don't need this alignment.

Signed-off-by: Artur Rojek <contact@artur-rojek.eu>
Reviewed-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
Tested-by: Rob Landley <rob@landley.net>
Signed-off-by: John Paul Adrian Glaubitz <glaubitz@physik.fu-berlin.de>
2025-04-05 19:46:34 +02:00
Linus Torvalds
56f944529e Merge tag 'input-for-v6.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input
Pull input updates from Dmitry Torokhov:

 - a brand new driver for touchpads and touchbars in newer Apple devices

 - support for Berlin-A series in goodix-berlin touchscreen driver

 - improvements to matrix_keypad driver to better handle GPIOs toggling

 - assorted small cleanups in other input drivers

* tag 'input-for-v6.15-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input:
  Input: goodix_berlin - add support for Berlin-A series
  dt-bindings: input: goodix,gt9916: Document gt9897 compatible
  dt-bindings: input: matrix_keypad - add wakeup-source property
  dt-bindings: input: matrix_keypad - add missing property
  Input: pm8941-pwrkey - fix dev_dbg() output in pm8941_pwrkey_irq()
  Input: synaptics - hide unused smbus_pnp_ids[] array
  Input: apple_z2 - fix potential confusion in Kconfig
  Input: matrix_keypad - use fsleep for delays after activating columns
  Input: matrix_keypad - add settle time after enabling all columns
  dt-bindings: input: matrix_keypad: add settle time after enabling all columns
  dt-bindings: input: matrix_keypad: convert to YAML
  dt-bindings: input: Correct indentation and style in DTS example
  MAINTAINERS: Add entries for Apple Z2 touchscreen driver
  Input: apple_z2 - add a driver for Apple Z2 touchscreens
  dt-bindings: input: touchscreen: Add Z2 controller
  Input: Switch to use hrtimer_setup()
  Input: drop vb2_ops_wait_prepare/finish
2025-04-05 09:20:39 -07:00
Nam Cao
244132c4e5 tracing/timers: Rename the hrtimer_init event to hrtimer_setup
The function hrtimer_init() doesn't exist anymore. It was replaced by
hrtimer_setup().

Thus, rename the hrtimer_init trace event to hrtimer_setup to keep it
consistent.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/cba84c3d853c5258aa3a262363a6eac08e2c7afc.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
59c9edafc0 hrtimers: Rename debug_init_on_stack() to debug_setup_on_stack()
All the hrtimer_init*() functions have been renamed to hrtimer_setup*().
Rename debug_init_on_stack() to debug_setup_on_stack() as well, to keep the
names consistent.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/073cf6162779a2f5b12624677d4c49ee7eccc1ed.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
e9ef2093ad hrtimers: Rename debug_init() to debug_setup()
All the hrtimer_init*() functions have been renamed to hrtimer_setup*().
Rename debug_init() to debug_setup() as well, to keep the names consistent.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/4b730c1f79648b16a1c5413f928fdc2e138dfc43.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
fcea1ccf24 hrtimers: Rename __hrtimer_init_sleeper() to __hrtimer_setup_sleeper()
All the hrtimer_init*() functions have been renamed to hrtimer_setup*().
Rename __hrtimer_init_sleeper() to __hrtimer_setup_sleeper() as well, to
keep the names consistent.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/807694aedad9353421c4a7347629a30c5c31026f.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
1cc24f2e76 hrtimers: Remove unnecessary NULL check in hrtimer_start_range_ns()
The struct hrtimer::function field can only be changed using
hrtimer_setup*() or hrtimer_update_function(), and both already null-check
'function'. Therefore, null-checking 'function' in hrtimer_start_range_ns()
is not necessary.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/4661c571ee87980c340ccc318fc1a473c0c8f6bc.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
04257da0c9 hrtimers: Make callback function pointer private
Make the struct hrtimer::function field private, to prevent users from
changing this field in an unsafe way. hrtimer_update_function() should be
used if the callback function needs to be changed.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/7d0e6e0c5c59a64a9bea940051aac05d750bc0c2.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
87d82cff38 hrtimers: Merge __hrtimer_init() into __hrtimer_setup()
__hrtimer_init() is only called by __hrtimer_setup(). Simplify by merging
__hrtimer_init() into __hrtimer_setup().

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/8a0a847a35f711f66b2d05b57255aa44e7e61279.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
50177a8b2e hrtimers: Switch to use __htimer_setup()
__hrtimer_init_sleeper() calls __hrtimer_init() and also sets up the
callback function. But there is already __hrtimer_setup() which does both
actions.

Switch to use __hrtimer_setup() to simplify the code.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/d9a45a51b6a8aa0045310d63f73753bf6b33f385.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Nam Cao
9779489a31 hrtimers: Delete hrtimer_init()
hrtimer_init() is now unused. Delete it.

Signed-off-by: Nam Cao <namcao@linutronix.de>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/all/003722f60c7a2a4f8d4ed24fb741aa313b7e5136.1738746927.git.namcao@linutronix.de
2025-04-05 10:30:17 +02:00
Thomas Gleixner
48ad7bbfd5 treewide: Convert new and leftover hrtimer_init() users
hrtimer_setup() takes the callback function pointer as argument and
initializes the timer completely.

Replace hrtimer_init() and the open coded initialization of
hrtimer::function with the new setup mechanism.

Coccinelle scripted cleanup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-04-05 10:30:17 +02:00
Thomas Gleixner
8fa7292fee treewide: Switch/rename to timer_delete[_sync]()
timer_delete[_sync]() replaces del_timer[_sync](). Convert the whole tree
over and remove the historical wrapper inlines.

Conversion was done with coccinelle plus manual fixups where necessary.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
2025-04-05 10:30:12 +02:00
Dmitry Torokhov
946661e3be Merge branch 'next' into for-linus
Prepare input updates for 6.15 merge window.
2025-04-04 23:04:35 -07:00
Linus Torvalds
a8662bcd2f Merge tag 'v6.15-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto fix from Herbert Xu:
 "This fixes a race condition in the newly added eip93 driver"

* tag 'v6.15-p3' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6:
  crypto: inside-secure/eip93 - acquire lock on eip93_put_descriptor hash
2025-04-04 19:34:38 -07:00
Linus Torvalds
dd9db3bff8 Merge tag 's390-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux
Pull more s390 updates from Vasily Gorbik:

 - Fix machine check handler _CIF_MCCK_GUEST bit setting by adding the
   missing base register for relocated lowcore address

 - Fix build failure on older linkers by conditionally adding the
   -no-pie linker option only when it is supported

 - Fix inaccurate kernel messages in vfio-ap by providing descriptive
   error notifications for AP queue sharing violations

 - Fix PCI isolation logic by ensuring non-VF devices correctly return
   false in zpci_bus_is_isolated_vf()

 - Fix PCI DMA range map setup by using dma_direct_set_offset() to add a
   proper sentinel element, preventing potential overruns and
   translation errors

 - Cleanup header dependency problems with asm-offsets.c

 - Add fault info for unexpected low-address protection faults in user
   mode

 - Add support for HOTPLUG_SMT, replacing the arch-specific "nosmt"
   handling with common code handling

 - Use bitop functions to implement CPU flag helper functions to ensure
   that bits cannot get lost if modified in different contexts on a CPU

 - Remove unused machine_flags for the lowcore

* tag 's390-6.15-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vfio-ap: Fix no AP queue sharing allowed message written to kernel log
  s390/pci: Fix dev.dma_range_map missing sentinel element
  s390/mm: Dump fault info in case of low address protection fault
  s390/smp: Add support for HOTPLUG_SMT
  s390: Fix linker error when -no-pie option is unavailable
  s390/processor: Use bitop functions for cpu flag helper functions
  s390/asm-offsets: Remove ASM_OFFSETS_C
  s390/asm-offsets: Include ftrace_regs.h instead of ftrace.h
  s390/kvm: Split kvm_host header file
  s390/pci: Fix zpci_bus_is_isolated_vf() for non-VFs
  s390/lowcore: Remove unused machine_flags
  s390/entry: Fix setting _CIF_MCCK_GUEST with lowcore relocation
2025-04-04 16:58:34 -07:00
Linus Torvalds
9f867ba24d Merge tag '6.15-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6
Pull more smb client updates from Steve French:

 - reconnect fixes: three for updating rsize/wsize and an SMB1 reconnect
   fix

 - RFC1001 fixes: fixing connections to nonstandard ports, and negprot
   retries

 - fix mfsymlinks to old servers

 - make mapping of open flags for SMB1 more accurate

 - permission fixes: adding retry on open for write, and one for stat to
   workaround unexpected access denied

 - add two new xattrs, one for retrieving SACL and one for retrieving
   owner (without having to retrieve the whole ACL)

 - fix mount parm validation for echo_interval

 - minor cleanup (including removing now unneeded cifs_truncate_page)

* tag '6.15-rc-part2-smb3-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update internal version number
  cifs: Implement is_network_name_deleted for SMB1
  cifs: Remove cifs_truncate_page() as it should be superfluous
  cifs: Do not add FILE_READ_ATTRIBUTES when using GENERIC_READ/EXECUTE/ALL
  cifs: Improve SMB2+ stat() to work also without FILE_READ_ATTRIBUTES
  cifs: Add fallback for SMB2 CREATE without FILE_READ_ATTRIBUTES
  cifs: Fix querying and creating MF symlinks over SMB1
  cifs: Fix access_flags_to_smbopen_mode
  cifs: Fix negotiate retry functionality
  cifs: Improve handling of NetBIOS packets
  cifs: Allow to disable or force initialization of NetBIOS session
  cifs: Add a new xattr system.smb3_ntsd_owner for getting or setting owner
  cifs: Add a new xattr system.smb3_ntsd_sacl for getting or setting SACLs
  smb: client: Update IO sizes after reconnection
  smb: client: Store original IO parameters and prevent zero IO sizes
  smb:client: smb: client: Add reverse mapping from tcon to superblocks
  cifs: remove unreachable code in cifs_get_tcp_session()
  cifs: fix integer overflow in match_server()
2025-04-04 15:27:43 -07:00
Linus Torvalds
a52a3c18cd Merge tag 'ntb-6.15' of https://github.com/jonmason/ntb
Pull ntb fixes from Jon Mason:
 "Bug fixes for NTB Switchtec driver mw negative shift, Intel NTB link
  status db, ntb_perf double unmap (in error case), and MSI 64bit
  arithmetic.

  Also, add new AMD NTB PCI IDs, update AMD NTB maintainer, and pull in
  patch to reduce the stack usage in IDT driver"

* tag 'ntb-6.15' of https://github.com/jonmason/ntb:
  ntb_hw_amd: Add NTB PCI ID for new gen CPU
  ntb: reduce stack usage in idt_scan_mws
  ntb: use 64-bit arithmetic for the MSI doorbell mask
  MAINTAINERS: Update AMD NTB maintainers
  ntb_perf: Delete duplicate dmaengine_unmap_put() call in perf_copy_chunk()
  ntb: intel: Fix using link status DB's
  ntb_hw_switchtec: Fix shift-out-of-bounds in switchtec_ntb_mw_set_trans
2025-04-04 14:23:07 -07:00
Dave Airlie
e2cb28ea3e Merge tag 'drm-misc-next-fixes-2025-04-04' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next
Short summary of fixes pull:

bridge:
- tda998x: Select CONFIG_DRM_KMS_HELPER

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

From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://lore.kernel.org/r/20250404065105.GA27699@linux.fritz.box
2025-04-05 06:28:03 +10:00
Eric Biggers
b261d22220 lib/crc: remove CONFIG_LIBCRC32C
Now that LIBCRC32C does nothing besides select CRC32, make every option
that selects LIBCRC32C instead select CRC32 directly.  Then remove
LIBCRC32C.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250401221600.24878-8-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
2025-04-04 11:31:42 -07:00
Eric Biggers
31ab49a99f lib/crc: document all the CRC library kconfig options
Previous commits removed all the original CRC kconfig help text, since
it was oriented towards people configuring the kernel, and the options
are no longer user-selectable.  However, it's still useful for there to
be help text for kernel developers.  Add this.

Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: "Martin K. Petersen" <martin.petersen@oracle.com>
Acked-by: Ard Biesheuvel <ardb@kernel.org>
Link: https://lore.kernel.org/r/20250401221600.24878-7-ebiggers@kernel.org
Signed-off-by: Eric Biggers <ebiggers@google.com>
2025-04-04 11:31:42 -07:00