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1,482,218 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Linus Torvalds
|
bbd0571269 |
- The usual pile of smallish cleanups and fixlets all over the place
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|
Linus Torvalds
|
94845e2929 |
- How refreshing: no new features but a whole pile of fixes to more or less
serious issues reported by Sashiko along with miscellaneous cleanups all over the place. All except one by Reinette Chatre, the one by Tony Luck -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmqEdnUACgkQEsHwGGHe VUoAYg/+PncYx3N2rKmJ8BpXOClNesiR6yivomKYqGe2SKIipADmie/l03td6/rj FC/uJnTAFpgB3jJSD6N/haC4hOLk590wCdAg204tCIV0eHPoXQ3UJeUt8aPBOeYK cMt3KlbKrLWulT8DkpnK8GWWEQsrvz+ah9Xmn4s9pw4oo4D4lNZMpWonTiQWENwZ If8KekkiztxZgEIbHKBNEk2Bt5SHhaICcwwaJAnPtCtrL762xqRRXvrZ/kvzebbu zTxkyEciTMqB+4TrbGy9EoWd0KsXsCqL4FtVa/yxu0M/dokHxNE/0xQQwyGcGzBP IYsnPchX/OuqJNGDTaf6WvBhkXBUZLngTA2ZzqVVSnBDmKEkFYYpHNvQGD52eLUE 25zLYdtMvBht1+opQ++w1gMBsq/eUCADB+a1SDPg+RsR0HDi1TUDRmvHY3x/2UK7 opsrnxv1ADGzMefloXqM5we2K3pScKAgc+v4MR+m5gDkTonmoDxS27XVtslrQYy1 LqCqKiK7z3tHL/zYOCcTYXhmlacpuL+1DsnreTdxn4eZ+PieihoAE02Jhh/R2t0N 6LhRF3sIDonHC+L4gXo2f7Agyg5z4jpZBikaO5QxSYAmeqlorzrPYQb2frf3xIL2 0z4Zvl81Ch8FE80Ro/wlucp13gF2wWvxyqnu02+M7xj93YgJ+60= =aMLV -----END PGP SIGNATURE----- Merge tag 'x86_cache_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 resource control updates from Borislav Petkov: - How refreshing: no new features but a whole pile of fixes to more or less serious issues reported by Sashiko along with miscellaneous cleanups all over the place. All except one by Reinette Chatre, the one by Tony Luck. * tag 'x86_cache_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: fs/resctrl: Inform user space when status buffer overflowed fs/resctrl: Communicate resource group deleted error via last_cmd_status fs/resctrl: Add last_cmd_status support for writes to max_threshold_occupancy fs/resctrl: Change last_cmd_status custom during input parsing fs/resctrl: Use accurate and symmetric exit flows fs/resctrl: Pass error reading event through to user space fs/resctrl: Use accurate type for rdt_resource::rid fs/resctrl: Change pattern used to track number of entries in enum resctrl_conf_type x86/resctrl: Protect against bad shift fs/resctrl: Use correct format specifier for printing error pointers fs/resctrl: Fix UAF from worker threads when domains are removed x86/resctrl: Ensure domain fully initialized before placed on RCU list fs/resctrl: Prevent deadlock and use-after-free in info file handlers fs/resctrl: Prevent use-after-free in rdtgroup_kn_put() fs/resctrl: Fix deadlock on errors during mount fs/resctrl: Move functions to avoid forward references in subsequent fixes x86,fs/resctrl: Document safe RCU list traversal |
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Linus Torvalds
|
ccb9331e13 |
- Remove the smp_locks alternatives machinery which was used to patch out lock
prefixes when running a SMP kernel on a uniprocessor machine -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEzv7L6UO9uDPlPSfHEsHwGGHeVUoFAmqD58YACgkQEsHwGGHe VUrzQRAAoaN6wL22NNqknd4axMd1ZDNo7mjwHqwQFH8dctba9nEHtnwhM+G0iqUP LAMpd4rJNClt14uMCSvN0zwx4SAB+/Dsn56ZN22TR74fWLjCBHuATgIzNCte2arF ifwP+qkiZJxixnYHKjE+CkbRPOd3xQr6nskte5/ywbbYoXjwve1GX3Lrf5YJ9mHJ IWZaRYHl5dd/tMlrN+Nv+AU0aK86gROdll6KLWE7LVrcDqLrjmigYOXvrFoUzMzR 4aCSSq3ZkaMUNyCNyJqqAkK17xxxSbZLaSwgx/mpo/7jKeiLHYkbE7SPJFhpSu7R fC3/DqsbqqbkN7yOGJ2amQsqmvNbnVsv7/P3litw8r41S+QYjJLCB9BW3TvRa/Ff obeN52sJCilvCg4dYnaokl17EZ6bOTpapGQlPAFySUvemUDvFfsHFXeBvnPbzFhg 6Mjf6ZPIf28yB/QUuJG6bESUdSodG/PUN5N4330tVuKQSJU0CnBHEWstsN5u9MVO aRecbdiWM69m9CUuwx9d+xoIa89aietaDSO7WvxdJe/psbL2GkO3jhl6BcdNQTi3 7A5M0F0QkOfMgtL8N0Kz6URSgrcnj+e5XKG8AvSQ68vRUFd6OXu82eWGUIT6MUk7 XULB9XeVQ8MkXwO+TDVsL6GkWcfCBy60JMO5ZibDZBRcFpsJfV4= =1kMm -----END PGP SIGNATURE----- Merge tag 'x86_alternatives_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 alternatives update from Borislav Petkov: - Remove the smp_locks alternatives machinery which was used to patch out lock prefixes when running a SMP kernel on a uniprocessor machine * tag 'x86_alternatives_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/alternative: Drop smp_locks glue |
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Linus Torvalds
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b960327ab3 |
- Add mce=print_all to the mce= kernel cmdline params documentation
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Linus Torvalds
|
b126f6f594 |
* Fix pkey_alloc() return value when pkeys are not supported
* Allow preemption during IPI completion waiting to improve wakeup latency
* Convert more x86 page table code to ptdescs
* Fixes and cleanups for set_memory*() locking, mostly around large pages
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Merge tag 'x86_mm_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 mm updates from Dave Hansen:
"There are two things in here of note. First, there are fixes to reduce
the time that the TLB flushing code sits around with interrupts
disabled. It should be well tested, but it's certainly something to
keep an eye on.
Second is a little back-and-forth in the interactions between the
set_memory*() locking and DEBUG_PAGEALLOC. There was a slightly
painful re-discovery of why DEBUG_PAGEALLOC has special locking rules,
but the code did end up better for it.
Summary:
- Fix pkey_alloc() return value when pkeys are not supported
- Allow preemption during IPI completion waiting to improve wakeup
latency
- Convert more x86 page table code to ptdescs
- Fixes and cleanups for set_memory*() locking, mostly around large
pages"
* tag 'x86_mm_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
x86/pkeys: Fix pkey_alloc() return value when pkeys are not supported
x86/mm: Fix and document DEBUG_PAGEALLOC
x86/mm: Use guard() for pgd_lock
x86/mm: Use guard() in cpa_collapse_large_pages()
x86/mm: Re-enable preemption before flush_tlb_multi()
x86/kvm: Disable preemption in kvm_flush_tlb_multi()
x86/mm: Move flush_tlb_info back to the stack
x86/mm: Cap flush_tlb_info alignment at 64 bytes
x86/mm: Factor out flush_tlb_info initialization
x86/mm/pat: Take cpa_lock around large-page collapse
x86/mm/pat: Don't gate cpa_lock on debug_pagealloc_enabled()
x86/xen: Convert xen_mm_unpin_all() to ptdescs
x86/xen: Convert xen_mm_pin_all() to ptdescs
x86/mm: Convert pgd_page_get_mm() to ptdescs
x86/mm: Convert sync_global_pgds_l4() to ptdescs
x86/mm: Convert sync_global_pgds_l5() to ptdescs
x86/mm: Convert arch_sync_kernel_mappings() to ptdescs
x86/mm/pat: Convert collapse_pmd_page() to ptdescs
x86/mm/pat: Convert __set_pmd_pte() to ptdescs
x86/mm/pat: Use IS_ENABLED() instead of ifdef
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Linus Torvalds
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2385c8b47b |
* Fix TDX port I/O bugs
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Linus Torvalds
|
058f2c4b75 |
* Document the intricacies of GS context switching
* Remove old TODO message about Geode LED driver -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEV76QKkVc4xCGURexaDWVMHDJkrAFAmqEcmAACgkQaDWVMHDJ krAfyBAAk3/JjQUHegkUcjuyaHXTm9gI2RM2GbEdukrLwICOYiCucpJAJsOCJo8J b0G8/MiSeJBGCt2qgwCYGX+eF6qzh15S1AGEkY/JQ6NVj5ZH4WceqzjeboXFGb29 qOgHNt32Ff6YUZwalCVHOr47eLEnc9JB0Dkl0pAtQfJNJv+qygW9xSBWghmXBgRu AOtnGzr8nOG5X6zkyUCh7cYJ9o1Sai66bwTWectx7g8gkwXp/mHuJ/PV136jdHik 3cYzmdM3R+98H2r1jml3aOOFmR215Dw5amRiovuBcwy8ls4dzJf6JnQhfJduWQgc 3+Q0UDQKNLWtDCJuon+L381USPo6PUXqYjNkvUCkwZNfDXlv5vvnoeJ4EAPJvadL PS+TaLLVTtf1zAcWPxNY75ZCQVRuVtWe+y+3A8+hxdS8tcPSG1kACFu6kqTRjP7C 7YUTgBFChCub0eXEqEllMeBX/eltffb6Ja/9suP7nG7KHdUEYLggEQMoVjUpG8Np WSf+K35DaDKmq6WA60XO5WbiwFYdvu2n5gwqBanWTejIGMxGJ0KF2VhvrScPgwaT U76SQRu8BmT4kCItx2wkkb1hV4se1No78vEVI/7jKWyPXCKrYhiy3NsxIgPhBg2D 4oLeily0XUBoY1x5mQoT6cvURtI9hNA9xxWbGCgAeZTS6MvBNHY= =Tj3X -----END PGP SIGNATURE----- Merge tag 'x86_misc_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull misc x86 updates from Dave Hansen: "Just adding some documentation and removing a super stale comment about an LED driver that was moved long ago: - Document the intricacies of GS context switching - Remove old TODO message about Geode LED driver" * tag 'x86_misc_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/platform/geode: Remove old TODO message about leds-net5501.c Documentation/x86: Document the intricacies of GS context switching |
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Linus Torvalds
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23eb790181 |
Fix frame pointer unwinder when it encounters FRED stack frames
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Linus Torvalds
|
104a813376 |
VDSO updates:
- Consolidate the VDSO datastore further and provide support for
mlock_all() and prefaulting.
- Provide 32-bit legacy time related functionality only if
CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists, but
architecture code still exposes the legacy functionality even disabled.
Clean this up by adding the missing guards and validating at build time
that the VDSO is legacy free if disabled.
- Consolidate the VDSO related config options in core and drivers, which
removes some non-sensical dependencies and quite an amount of #ifdeffery.
- Clean up the PAGE_SIZE definition maze
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Merge tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull VDSO updates from Thomas Gleixner:
- Consolidate the VDSO datastore further and provide support for
mlock_all() and prefaulting.
- Provide 32-bit legacy time related functionality only if
CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists,
but architecture code still exposes the legacy functionality even
disabled.
Clean this up by adding the missing guards and validating at build
time that the VDSO is legacy free if disabled.
- Consolidate the VDSO related config options in core and drivers,
which removes some non-sensical dependencies and quite an amount of
#ifdeffery.
- Clean up the PAGE_SIZE definition maze
* tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
random: vDSO: Drop custom PAGE_SIZE definitions
LoongArch: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
clocksource/drivers/timer-riscv: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
clocksource/drivers/arm_arch_timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
clocksource/drivers/mips-gic-timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
MIPS: csrc-r4k: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
vDSO: Make clockmode constants available without CONFIG_GENERIC_GETTIMEOFDAY
kbuild: Support generated asm-headers in subdirectories
vdso: Rename HAVE_GENERIC_VDSO to VDSO_DATASTORE
vdso: Drop HAVE_GENERIC_VDSO from architecture kconfig files
vdso: Automatically select HAVE_GENERIC_VDSO if necessary
MIPS: vdso: Stop using CONFIG_HAVE_GENERIC_VDSO
vdso: Remove the dependency on HAVE_GENERIC_VDSO from ARCH_HAS_VDSO_ARCH_DATA
futex: Remove dependency on HAVE_GENERIC_VDSO from FUTEX_ROBUST_UNLOCK
vdso/gettimeofday: Verify COMPAT_32BIT_TIME interactions
sparc: vdso: Respect COMPAT_32BIT_TIME
MIPS: VDSO: Respect COMPAT_32BIT_TIME
powerpc/vdso: Respect COMPAT_32BIT_TIME
ARM: VDSO: Respect COMPAT_32BIT_TIME
arm64: vdso32: Respect COMPAT_32BIT_TIME
...
|
||
|
Linus Torvalds
|
3b4128b9f3 |
Timers and timekeeping core updates:
- Fix a subtly inconsistency in the timekeeping code, which fails to
account for the monotonicity adjustment in ntp_error. For small changes
of the clocksource multiplicator (+/-1) which are typically used by the
NTP PLL this is hardly to observe. But for larger adjustments,
e.g. caused by a direct frequency setting through adjtimex() the
one-time uncompensated offset is significant.
Cure this by adjusting ntp_error with the resulting offset so that the
discrepancy is smoothed away over time
- Make tick length calculations correct in NTP. The timekeeping core
takes the quantisation of the clocksource into account when calculating
the tick length to compensate for the deviation of the nominal
NTP_INTERVAL_LENGTH. While timekeeping gets this right, NTP is not
aware of that, which means it operates on the nominal value and not on
the actual value which is determined by the clock source frequency. The
rounding of a coarse clocksource like the ACPI PM timer results in a
+127 PPM deviation.
Cure this by exposing the deviation to the NTP code so that it can
operate on the same data as the timekeeping core. This is purely kernel
internal. User space still sees the nominal tick lenght via adjtimex().
- The accuracy of the NTP adjustments is fairly approximate as the code
assumes that the invocations are precisely in NTP interval frequency
ticks and the final adjustment can over and under-run.
Cure this by adjusting ntp_error by the intended skew on each tick to
achieve the desired rate.
- Handle the two competing skews of time offset and time adjustment
correctly by calculating the conflict portion between the skews and
adjusting both accordingly.
- A set of updates and improvements for the selftests
- The usual small fixes and improvements all over the place
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Merge tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and timekeeping core updates from Thomas Gleixner:
- Fix a subtly inconsistency in the timekeeping code, which fails to
account for the monotonicity adjustment in ntp_error.
For small changes of the clocksource multiplicator (+/-1) which are
typically used by the NTP PLL this is hard to observe. But for larger
adjustments, e.g. caused by a direct frequency setting through
adjtimex() the one-time uncompensated offset is significant.
Cure this by adjusting ntp_error with the resulting offset so that
the discrepancy is smoothed away over time
- Make tick length calculations correct in NTP.
The timekeeping core takes the quantisation of the clocksource into
account when calculating the tick length to compensate for the
deviation of the nominal NTP_INTERVAL_LENGTH.
While timekeeping gets this right, NTP is not aware of that, which
means it operates on the nominal value and not on the actual value
which is determined by the clock source frequency. The rounding of a
coarse clocksource like the ACPI PM timer results in a +127 PPM
deviation.
Cure this by exposing the deviation to the NTP code so that it can
operate on the same data as the timekeeping core. This is purely
kernel internal. User space still sees the nominal tick lenght via
adjtimex().
- The accuracy of the NTP adjustments is fairly approximate as the code
assumes that the invocations are precisely in NTP interval frequency
ticks and the final adjustment can over and under-run.
Cure this by adjusting ntp_error by the intended skew on each tick to
achieve the desired rate.
- Handle the two competing skews of time offset and time adjustment
correctly by calculating the conflict portion between the skews and
adjusting both accordingly.
- A set of updates and improvements for the selftests
- The usual small fixes and improvements all over the place
* tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
selftests: timers: nsleep-lat: Check all calls to clock_nanosleep() and clock_gettime()
selftests: timers: nsleep-lat: Reuse kselftest error numbers
selftests: timers: nsleep-lat: Explicitly list the tested clocks
selftests: timers: nsleep-lat: Use NSEC_PER_MSEC define for unreasonable latency
selftests: timers: nanosleep: Report each test separately
selftests: timers: nanosleep: Explicitly handle timer_delete() failure
selftests: timers: nanosleep: Move all single clock tests out of the loop in main()
selftests: timers: nanosleep: Reuse kselftest error numbers
selftests: timers: nanosleep: Explicitly list the tested clocks
selftests: timers: nanosleep: Drop output alignment
selftests: timers: Use clock_name() and constants from clock-helpers.h
selftests: Add clock-helpers.h
timer_list: Use ktime_t over nanoseconds
timer_list: Use standard 'long long' format placeholders
hrtimer: Add a lockdep assertion to hrtimer_update_base()
timekeeping: Use u32 for clock_was_set_seq
timekeeping: Rename clockid_aux_valid() to clockid_is_aux_clock()
hrtimer: Account nr_retries on recovered interrupt retries
timers/itimer: Zero-init old itimerval before copy to userspace
nohz: Replace dead select with choice default
...
|
||
|
Linus Torvalds
|
b0239dd672 |
Clocksource/event driver updates:
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers.
- Handle SWAP_IO_SPACE correctly in the rtl-otto driver
- Make the Samsumg PWM timer driver PREEMPT_RT compatible
- Ensure that the SUN4I timer is programmed with a delta larger than zero
as a zero delta causes the the timer to be disabled.
- The usual fixes and improvements all over the place
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Merge tag 'timers-clocksource-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull clocksource/event driver updates from Thomas Gleixner:
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers
- Handle SWAP_IO_SPACE correctly in the rtl-otto driver
- Make the Samsumg PWM timer driver PREEMPT_RT compatible
- Ensure that the SUN4I timer is programmed with a delta larger than
zero as a zero delta causes the the timer to be disabled
- The usual fixes and improvements all over the place
* tag 'timers-clocksource-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
clocksource/drivers/armada: Unwind timer clock on init failure
clocksource/drivers/rtl-otto: Change driver to use __raw reads and writes
clocksource/drivers/samsung_pwm: Switch to raw_spinlock_t type
clocksource/drivers/clps711x: Do not unmap clocksource MMIO
clocksource/drivers/nxp-pit: Fix IRQ leak on cpuhp_setup_state error path
clocksource/drivers/timer-sun4i: Advertise a real minimum delta
clocksource: Remove redundant dev_err()/dev_err_probe()
clocksource/drivers/sh_cmt: Use named initializers for platform_device_id arrays
clocksource/drivers/sh_mtu2: Drop unused assignment of platform_device_id
|
||
Mark Brown
|
881dc9dd66 |
io_uring: Add missing include for ITER_SOURCE and ITER_DEST
Fix IWYU issues:
/tmp/next/build/include/linux/io_uring_types.h:56:32: error: 'ITER_DEST'
undeclared here (not in a function)
56 | IO_BUF_DEST = 1 << ITER_DEST,
| ^~~~~~~~~
/tmp/next/build/include/linux/io_uring_types.h:57:32: error: 'ITER_SOURCE'
undeclared here (not in a function)
57 | IO_BUF_SOURCE = 1 << ITER_SOURCE,
| ^~~~~~~~~~~
Fixes:
|
||
|
Linus Torvalds
|
030c9f813b |
Treewide timer related cleanups:
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
removal more than a decade ago along with some now empty asm/timex.h
files.
- Consolidate delay timer calibration
The construct of having a define in a header requires that
architectures provided asm/timex.h for no reason. Also the function
name for reading the delay timer is confusing at best.
Use a config switch to enable that functionality and rename the
function to delay_read_timer() to make the purpose clear.
This removes some more now empty asm/timex.h files as well.
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Merge tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull treewide timer related cleanups from Thomas Gleixner:
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
removal more than a decade ago along with some now empty asm/timex.h
files.
- Consolidate delay timer calibration
The construct of having a define in a header requires that
architectures provided asm/timex.h for no reason. Also the function
name for reading the delay timer is confusing at best.
Use a config switch to enable that functionality and rename the
function to delay_read_timer() to make the purpose clear.
This removes some more now empty asm/timex.h files as well.
* tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
calibrate: Rework delay timer calibration
treewide: Remove CLOCK_TICK_RATE
x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE
|
||
Lukas Wunner
|
eddba19b8b |
PCI/AER: Support Advisory Non-Fatal Errors
Per PCIe r7.0 sec 6.2.4.3, certain Non-Fatal Errors may be signaled using ERR_COR instead of ERR_NONFATAL. These "Advisory Non-Fatal Errors" are listed in sec 6.2.7 and explained in detail in sec 6.2.3.2.4. Advisory Non-Fatal Errors set bits in the Uncorrectable Error Status Register as well as one bit in the Correctable Error Status Register (Advisory Non-Fatal Error Status, bit 13). The latter is masked by default, hence these errors are currently not signaled at all (except on non-compliant products which choose to unmask the bit). Unmask Advisory Non-Fatal Errors on device enumeration. Some Non-Fatal Errors are always Advisory, others may be Advisory at the discretion of the detecting agent. If multiple errors occur, the agent may qualify a portion as non-Advisory and signal ERR_NONFATAL in addition to ERR_COR. In this case, there's no way to determine which Non-Fatal Error was Advisory. Assume none is to ensure that the Uncorrectable Error code path is taken to recover from the errors. Introduce aer_compute_anfe_status() to compute Advisory Non-Fatal Error bits from AER registers, based on this policy. Use it for Firmware First error handling in pci_print_aer(), which receives an AER register dump from the platform (UEFI r2.11 sec N.2.7). Introduce aer_get_anfe_status() to read AER registers from a device and feed them to aer_compute_anfe_status(). Use it for native error handling in aer_get_device_error_info(), which gathers registers from the device and caches the computed Advisory Non-Fatal Error bits in a new anfe_status field in struct aer_err_info. Regardless whether error handling is native or Firmware First, the AER driver needs to increment error counters, signal a trace event and log each error. When Advisory Non-Fatal Errors occur, these steps must be performed for Correctable Errors and for Uncorrectable Errors. Achieve this through a recursive invocation of aer_print_error() (for native error handling) and pci_print_aer() (for Firmware First error handling). The recursive invocation reports the (Advisory) Uncorrectable Errors after reporting the Correctable Errors. Note that the First Error Pointer and TLP Prefix Log is only meaningful for Uncorrectable Errors, but when Advisory Non-Fatal Errors occur, aer_get_device_error_info() has to populate the first_error and tlp_header_valid fields in struct aer_err_info for a Correctable Error. Avoid incorrectly logging those fields for Correctable Errors by amending __aer_print_error() and aer_print_error() with conditionals. Sample log output for an Advisory Unsupported Request Error: pcieport 0001:00:00.4: AER: Multiple Correctable Error messages received, first one from 0001:0e:00.0 idxd 0001:0e:00.0: PCIe Bus Error: severity=Correctable idxd 0001:0e:00.0: device [8086:1216] error status/mask=00002000/00000000 idxd 0001:0e:00.0: [13] NonFatalErr | | idxd 0001:0e:00.0: PCIe Bus Error: severity=Uncorrectable (Non-Fatal) idxd 0001:0e:00.0: device [8086:1216] error status/mask=00100000/00000000 idxd 0001:0e:00.0: [20] UnsupReq | Receiver | Transaction Layer (First) idxd 0001:0e:00.0: AER: TLP Header (Flit): 0x01000104 0x00000000 0x0000080e 0x0f800001 This commit takes inspiration (but differs significantly) from an earlier submission by Zhenzhong Duan, which in turn was based on a submission by Qingshun Wang: https://lore.kernel.org/r/20240620025857.206647-1-zhenzhong.duan@intel.com/ Prior attempts at supporting Advisory Non-Fatal Errors were submitted by Yicong Yang and Dio Sun: https://lore.kernel.org/r/1614689994-10925-1-git-send-email-yangyicong@hisilicon.com/ https://lore.kernel.org/r/BJXPR01MB0614C01A9523786117B1F1CBCEC8A@BJXPR01MB0614.CHNPR01.prod.partner.outlook.cn/ Signed-off-by: Lukas Wunner <lukas@wunner.de> [bhelgaas: fold in https://lore.kernel.org/all/amdnMg_J6T3Sys45@wunner.de, https://lore.kernel.org/all/120da0565eac0157ffd913423c7cfa66e985ff59.1786800931.git.lukas@wunner.de] Signed-off-by: Bjorn Helgaas <bhelgaas@google.com> Link: https://lore.kernel.org/r/20240620025857.206647-1-zhenzhong.duan@intel.com/ Link: https://lore.kernel.org/r/1614689994-10925-1-git-send-email-yangyicong@hisilicon.com/ Link: https://lore.kernel.org/r/BJXPR01MB0614C01A9523786117B1F1CBCEC8A@BJXPR01MB0614.CHNPR01.prod.partner.outlook.cn/ Link: https://patch.msgid.link/1b62915ffe06ee5b08e846531c42392e5f244337.1784905909.git.lukas@wunner.de |
||
|
Linus Torvalds
|
0dd1a54f44 |
SMP core updates:
- Reduce the preemption disabled sections in smp_call_function*().
The various smp call functions keep preemption disabled accross the
full operation which includes the wait for completion. Especially the
latter can take some time when one of the target CPUs is not
immediately responding to the IPI, which can result in large latency
spikes.
To improve this provide a per task CPU mask to track the CPUs to wait
for. That makes the information required for the wait task local and
therefore allows to reenable preemption before the wait. While this
comes with moderate extra memory cost this reduces SMP function call
induced latency measured in a fleet for high priority tasks from ~17ms
to ~1.5ms (~90%).
- Reduce the overhead of the CSD debug code by replacing the heavy memory
barriers with smp_store_release()/acquire().
- Remove obsolute unused hotplug states
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Merge tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull SMP core updates from Thomas Gleixner:
- Reduce the preemption disabled sections in smp_call_function*().
The various smp call functions keep preemption disabled accross the
full operation which includes the wait for completion. Especially the
latter can take some time when one of the target CPUs is not
immediately responding to the IPI, which can result in large latency
spikes.
To improve this provide a per task CPU mask to track the CPUs to wait
for. That makes the information required for the wait task local and
therefore allows to reenable preemption before the wait.
While this comes with moderate extra memory cost this reduces SMP
function call induced latency measured in a fleet for high priority
tasks from ~17ms to ~1.5ms (~90%).
- Reduce the overhead of the CSD debug code by replacing the heavy
memory barriers with smp_store_release()/acquire()
- Remove obsolute unused hotplug states
* tag 'smp-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
scftorture: Remove preempt_disable() in scftorture_invoke_one()
smp: Remove preempt_disable() from on_each_cpu_cond_mask()
smp: Remove preempt_disable() from smp_call_function()
smp: Enable preemption early in smp_call_function_many_cond()
smp: Alloc percpu csd data in smpcfd_prepare_cpu() only once
smp: Use task-local IPI cpumask in smp_call_function_many_cond()
smp: Refactor remote CPU selection in smp_call_function_any()
smp: Enable preemption early in smp_call_function_single()
smp: Disable preemption explicitly in __csd_lock_wait()
cpu/hotplug: Remove CPUHP_AP_ARM_CORESIGHT_CTI_STARTING
smp: Use release stores for csd_lock_record() state
|
||
|
Linus Torvalds
|
b844715e8a |
Futex updates:
- A set of improvements to various futex self tests
- Conversion to the selftest harness
- Provide and use thread creation and synchronization helpers to reduce
the dependency on delays, which tend to fail on loaded test systems
- New tests for validating owner exit scenarios for robust and PI futexes
- Runtime detect supported features and skip the tests if the kernel
has no support
- A few minor fixes
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Merge tag 'locking-futex-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull futex updates from Thomas Gleixner:
- Improvements to various futex self tests:
- Conversion to the selftest harness
- Provide and use thread creation and synchronization helpers to
reduce the dependency on delays, which tend to fail on loaded test
systems
- New tests for validating owner exit scenarios for robust and PI
futexes
- Runtime detect supported features and skip the tests if the kernel
has no support
- A few minor fixes
* tag 'locking-futex-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/futex: Give circular-list nodes static storage
selftests/futex: Use thread synchronization helpers instead of usleep()
selftests/futex: Provide thread creation and synchronization helpers
selftests/futex: Dynamically skip unsupported tests
selftests/futex: Add FUTEX_LOCK_PI owner-exiting coverage
selftests/futex: Migrate robust_list to harness
selftests/futex: Migrate futex_priv_hash to harness
selftests/futex: Migrate futex_numa_mpol to harness
selftests/futex: Migrate futex_requeue_pi_signal_restart to harness
selftests/futex: Migrate futex_requeue_pi_mismatched_ops to harness
selftests/futex: Migrate futex_requeue_pi to harness
selftests/futex: Migrate futex_requeue to harness
selftests/futex: Migrate futex_wait_uninitialized_heap to harness
selftests/futex: Migrate futex_wait_private_mapped_file to harness
selftests/futex: Migrate futex_wait to harness
selftests/futex: Correct validation logic in waitv
selftests/futex: Migrate functional tests to harness
selftests/futex: Remove static keyword from 'head'
futex: Remove unnecessary NULL check before kvfree()
selftests/rseq: Replace glibc-specific __GNUC_PREREQ with portable check
|
||
|
Linus Torvalds
|
8b5d31123f |
Interrupt chip driver updates:
- Update the realtek-rtl driver to support multiple interrupt domains and
remove hardcoded assumptions about the underlying demultiplex interrupt
- Remove the unused IMGPDC driver, which got orphaned when the metag
architecture was removed long ago.
- Update the Qualcom PDC interrupt chip driver to support differnent
versions of the IP block, to properly differentiable between direct and
GPIO based interrupts and to utilize pass through mode to the
underlying GIC interrupt.
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers as that error logging has been moved to devm_request_*_irq().
- Support dynamic MSI-X allocations in the GIC-V3-ITS MSI parent domain
driver. That's important for VFIO pass through devices to avoid
reinitialization of the MSI-X space when extending the vector
range. Such a reinitialization can result is lost interrupts and stale
devices.
- Fix a bunch of resource leaks in various driver error paths/
- The usual small improvements all over the place
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Merge tag 'irq-drivers-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull interrupt chip driver updates from Thomas Gleixner:
- Update the realtek-rtl driver to support multiple interrupt domains
and remove hardcoded assumptions about the underlying demultiplex
interrupt
- Remove the unused IMGPDC driver, which got orphaned when the metag
architecture was removed long ago.
- Update the Qualcom PDC interrupt chip driver to support differnent
versions of the IP block, to properly differentiable between direct
and GPIO based interrupts and to utilize pass through mode to the
underlying GIC interrupt.
- Remove redundant dev_err() and dev_err_probe() invocations in various
drivers as that error logging has been moved to devm_request_*_irq().
- Support dynamic MSI-X allocations in the GIC-V3-ITS MSI parent domain
driver. That's important for VFIO pass through devices to avoid
reinitialization of the MSI-X space when extending the vector range.
Such a reinitialization can result is lost interrupts and stale
devices.
- Fix a bunch of resource leaks in various driver error paths
- The usual small improvements all over the place
* tag 'irq-drivers-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
irqchip/gic-v3-its: Fix grammar and replace a bit number with its symbol
irqchip/gic-v3-its: Prevent leak in its_vpe_irq_domain_alloc()
irqchip/renesas-irqc: Fix generic interrupt chip leak on remove
irqchip/gic-v3-its: Enable dynamic MSI-X allocation
irqchip: Remove redundant dev_err()/dev_err_probe()
irqchip/gic-v5/iwb: Fix stray verb in comment
irqchip/qcom-pdc: Fix kernel doc for qcom_pdc_gic_secondary_set_type()
irqchip/gic-v3-its: Fix its node leak in gic_acpi_parse_madt_its()
irqchip/gic-v3-its: Fix memleak in its_probe_one()
irqchip/qcom-pdc: Configure PDC to pass through mode
irqchip/qcom-pdc: Differentiate between direct SPI and GPIO as SPI
irqchip/qcom-pdc: Move all static variables to struct pdc_desc
irqchip/qcom-pdc: Restructure version support
irqchip/irq-imgpdc: Remove unused driver
irqchip/irq-realtek-rtl: Activate multiple parents
irqchip/irq-realtek-rtl: Allow shuffled interrupt order
irqchip/irq-realtek-rtl: Add a select function
irqchip/irq-realtek-rtl: Add mask for interrupt handling
irqchip/irq-realtek-rtl: Add interrupt data structure
irqchip/irq-realtek-rtl: Split out parent setup code
...
|
||
|
Linus Torvalds
|
762fffa407 |
Generic interrupt subsystem updates:
- Remove pointless NULL checks of the kstats_irqs field. That's a
historical left over and not longer required.
- Add Radu Rendec as reviewer. Radu thankfully stepped up to help
reviewing the interrupt core and the related drivers code.
- The usual small improvements and fixes
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Merge tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic interrupt subsystem updates from Thomas Gleixner:
- Remove pointless NULL checks of the kstats_irqs field. That's a
historical left over and not longer required.
- Add Radu Rendec as reviewer. Radu thankfully stepped up to help
reviewing the interrupt core and the related drivers code.
- The usual small improvements and fixes
* tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
genirq/msi: Move misplaced EXPORT_SYMBOL_GPL for msi_domain_free_irqs_all()
parisc: Remove unnecessary NULL check of the kstat_irqs field
genirq: Remove unnecessary NULL check of the kstat_irqs field
irqdomain: Remove unnedded NULL check in __irq_domain_[de]activate_irq()
genirq/manage: Use irqd_get_parent_data() helper in __irq_get_irqchip_state()
irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path
|
||
|
Linus Torvalds
|
6138016752 |
Two trivial updates for RSEQ:
- Add the recently added new test binaries to .gitignore
- Fix a trivial typo in a comment.
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Merge tag 'core-rseq-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull rseq updates from Thomas Gleixner:
"Two trivial updates for RSEQ:
- Add the recently added new test binaries to .gitignore
- Fix a trivial typo in a comment"
* tag 'core-rseq-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
selftests/rseq: Add missing test binaries to .gitignore
selftests/rseq: Fix spelling of accommodate
|
||
|
Linus Torvalds
|
3424d8c18a |
Generic entry code updates:
- Make syscall user dispatching configurable
Not all architectures can makes use of syscall user dispatching. Allow
them to disable the feature completely.
- Consolidate stack randomization for the generic entry code and the
architectures using it.
Stack randomization on syscall entry was sprinkled throughout the
architecture specific low level entry code and in some cases at the
wrong points, e.g. before establishing state, which violates the
non-instrumentable constraints of that code.
Clean this up by integrating stack randomization into the generic entry
code helpers so that it is invoked at the earliest possible point right
after establishing state and converting all generic entry code using
architecture over.
- Clean up the syscall number handling in the generic entry code. It
works correctly for architectures which have a separate return value
storage in pt_regs, but fails to distinguish the case where user space
handed in -1 as syscall number from the case where the entry code
rejects it by returning -1 to the callers. Aside of that the return
value functionality of those interfaces is not really intuitive.
Fix this by separating the decision to reject a syscall (user dispatch,
ptrace, seccomp ...) from the potential modification of the syscall
number through these mechanisms.
This solves most of the problems for architectures which do not have a
separate return value storage in pt_regs except for the case where a
tracepoint has a BPF script or a probe attached which overwrite both
the syscall number and the return value. But that's a problem which
cannot be solved in the generic code, that only can be addressed by
separating the storage model in the affected architectures.
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Merge tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull generic entry code updates from Thomas Gleixner:
- Make syscall user dispatching configurable
Not all architectures can makes use of syscall user dispatching.
Allow them to disable the feature completely.
- Consolidate stack randomization for the generic entry code and the
architectures using it.
Stack randomization on syscall entry was sprinkled throughout the
architecture specific low level entry code and in some cases at the
wrong points, e.g. before establishing state, which violates the
non-instrumentable constraints of that code.
Clean this up by integrating stack randomization into the generic
entry code helpers so that it is invoked at the earliest possible
point right after establishing state and converting all generic entry
code using architecture over.
- Clean up the syscall number handling in the generic entry code. It
works correctly for architectures which have a separate return value
storage in pt_regs, but fails to distinguish the case where user
space handed in -1 as syscall number from the case where the entry
code rejects it by returning -1 to the callers. Aside of that the
return value functionality of those interfaces is not really
intuitive.
Fix this by separating the decision to reject a syscall (user
dispatch, ptrace, seccomp ...) from the potential modification of the
syscall number through these mechanisms.
This solves most of the problems for architectures which do not have
a separate return value storage in pt_regs except for the case where
a tracepoint has a BPF script or a probe attached which overwrite
both the syscall number and the return value. But that's a problem
which cannot be solved in the generic code, that only can be
addressed by separating the storage model in the affected
architectures.
* tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
entry, treewide: Make syscall_enter_from_user_mode[_work]() indicate syscall execution
entry: Make return type of syscall_trace_enter() bool
entry: Rework trace_syscall_enter()
entry: Rework syscall_audit_enter()
syscall_user_dispatch: Introduce ARCH_SUPPORTS_SYSCALL_USER_DISPATCH
entry: Fix seccomp bypass after ptrace with TSYNC
x86/entry: Simplify the syscall number logic
x86/entry: Get rid of the sys_ni_syscall() indirection
x86/entry: Make syscall functions static
ptrace, treewide: Rename ptrace_report_syscall_entry() to ptrace_report_syscall_permit_entry()
seccomp, treewide: Rename and convert __secure_computing() to return boolean
entry: Use syscall number instead of rereading it
entry: Remove syscall_enter_from_user_mode()
x86/syscall: Use [syscall_]enter_from_user_mode_randomize_stack()
s390/syscall: Use enter_from_user_mode_randomize_stack()
riscv/syscall: Use syscall_enter_from_user_mode_randomize_stack()
powerpc/syscall: Use syscall_enter_from_user_mode_randomize_stack()
loongarch/syscall: Use syscall_enter_from_user_mode_randomize_stack()
entry: Provide [syscall_]enter_from_user_mode_randomize_stack()
randomize_kstack: Provide add_random_kstack_offset_irqsoff()
...
|
||
Besar Wicaksono
|
9453bc6a69 |
perf vendor events arm64: Fix Tegra410 Olympus event 0x0197
The name and description for NVIDIA Tegra410 Olympus implementation-defined
event 0x0197 incorrectly indicate a TXREQ limit between one quarter and
one half. Correct them to describe a TXREQ limit below one half.
Fixes:
|
||
Saurav Sachidanand
|
2d85e13c55 |
perf vendor events arm64: fix swapped MetricGroup for Tegra410 L1 prefetcher metrics
The L1D prefetcher metrics (l1d_cache_rw_miss_ratio, l1d_demand_accesses,
etc.) were incorrectly assigned to MetricGroup "L1I_Prefetcher_Effectiveness"
and vice versa. This causes 'perf stat --metric-group L1D_Prefetcher_Effectiveness'
to display L1I metrics, which is misleading.
Swap the MetricGroup assignments so L1D metrics are in the L1D group and
L1I metrics are in the L1I group.
Fixes:
|
||
Jian-Ming Liao
|
455b454c87 |
i3c: mipi-i3c-hci: Add support for AMD_PT I3C controller
Add support for the AMD_PT I3C controller by introducing the following changes: - Add AMD_PT I3C controller platform device ID in core.c. - Register AMD_PT I3C controller PCI ID in mipi-i3c-hci-pci.c. Co-developed-by: Patrick Yen <Patrick_Yen@asmedia.com.tw> Signed-off-by: Patrick Yen <Patrick_Yen@asmedia.com.tw> Signed-off-by: Jian-Ming Liao <Jm_Liao@asmedia.com.tw> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260818104106.763772-4-Jm_Liao@asmedia.com.tw Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Jian-Ming Liao
|
ee53e1787f |
i3c: mipi-i3c-hci: Add PIO queue management support for HCI v1.2
Support explicit enablement and starting of PIO queues as required by HCI v1.2. Handle alternate PIO queue sizes via ALT_QUEUE_SIZE register. Implement explicit PIO queue stopping/disabling and restart logic after errors. Co-developed-by: Patrick Yen <Patrick_Yen@asmedia.com.tw> Signed-off-by: Patrick Yen <Patrick_Yen@asmedia.com.tw> Signed-off-by: Jian-Ming Liao <Jm_Liao@asmedia.com.tw> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260818104106.763772-3-Jm_Liao@asmedia.com.tw Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Jian-Ming Liao
|
308ecb824d |
i3c: mipi-i3c-hci: Fix missing STAT_IBI_STATUS_THLD in PIO mode
In PIO mode initialization, STAT_IBI_STATUS_THLD was missing from
pio->enabled_irqs. As a result, the host controller interrupt signal for
IBI threshold was never enabled when transfer starts, preventing IBI
status descriptors from being properly processed in PIO mode.
Include STAT_IBI_STATUS_THLD in pio->enabled_irqs so that the IBI
threshold interrupt is activated alongside error interrupts upon the first
transfer.
Fixes:
|
||
Jisheng Zhang
|
ff2eee2b86 |
i3c: dw: rename "pclk" to "apb" to match dt-binding
Change clock name "pclk" to "apb" to match dt-binding doc. No upstream
device tree sources currently use the "pclk" clock name, so no any
backward compatibility issues.
Fixes:
|
||
|
Linus Torvalds
|
3a0dd7ba4f |
x86/documentation changes for v7.3:
- Misc x86 documentation updates (Randy Dunlap, Daniel Gibson) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC4VIRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1gfEA//ZDjmJtsROLRciQmobsT5tDnyCwQXRuFJ 2sZgBvcdYjKZOUbnq2JHNu2x//mQ3I+/GHoqgB25ISVtuurHj/lh9CBpxthECcBv 6cAXd4iJ8I8kYKPM7oHvSs7Jnxp0Z9Iea4lYO5z6l5O0WX2Cr5/jvkt3Lx0pzVwr Mat+VrlDR04QRtKK9ohwTfotYx/O4SdL04cT2uLuLj0EGG3nxBFgGsHszO7oG5Yh CGFgW81Ju2IVeQ/XaOjWKAOZMN4yb4bjsA/oL9TnDhaayYXeznHE51LzKn3KsUeK Qbys1s3AFvLvdUB+6xaqlzwIxPvgvdCVnzzqb9LFId3Nl/PJgFccFs+Y91D3C+nJ U1ZUhcrAcTW8HfKoNH99M1hvN7NLHq+5AvjL/rpibiQLLcHFND8p1c8SkxC2NVin JF+ufdr8JvfuITSB0STBR9lRiP882qmHZX64F21RqI7vKcXZNkV2DhZXJrU6lZY4 GMxPoWwWiMzGIBpQDuig/dImFOjL8T8UibqJ9d5Vp8+1xkH1KOrOHLa4rMUUJlAT CfuyCY7d8pWa7dTxFHYAQV8+bExw/pxwAwpReOW7m4Ntyxfe49ZC/tCJg9vxsWPr 8P1LKyWHm76mBebrt3/eCY6VkiX6Z0MhkMk0Si+LgccGEVjj88lvn3QgeUkERWkr MGbuZPIiX+4= =tB+O -----END PGP SIGNATURE----- Merge tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 documentation updates from Ingo Molnar: - Misc x86 documentation updates (Randy Dunlap, Daniel Gibson) * tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: Documentation/arch/x86/amd-debugging: Add example for reset register x86/intel/quark: Clean up function kernel-doc x86/speculation: Drop Excess function parameter descriptions x86/lib: checksum_64.h: Eliminate all kernel-doc warnings x86/barrier: Use correct parameter names in kernel-doc |
||
|
Linus Torvalds
|
d5b550edad |
x86/core updates for v7.3:
- Optimize the kcfi call sequence (Peter Zijlstra) - Use sfence for wmb() if SSE is available (Yao Zi) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC4LMRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1hXnA/9GnPxgwNrauwIk+gH9DyGDYa93byd+JtE SKVc3RWipSYqrG6cgQoNDnGCN+TLO2lIrCriXRXfisu3F5HMR+VZ+H6KNt0zy3eK EZrMFQpIEX98penD+w9Ae42LBCdLKPKyN9obkdUftIYMYAsW/LtZE9PAy3WqH/0L iyYs1EwpIQuZGRJNxQYbNNVCs+fi1PCP5WmGitO5QHUUqVmyf9g9jFkS3rAAP28v WvDLDWbHBz/1MVV34/jdftuMhOSz8FpwASseozsq7LXPV5yiknlCIf7rgiVlxR89 tmxFYN5Trjk8ORiR0TpknmAxduXtAAt0Mu1vE6ABbLgyaYv99+O21g0dN2KdUdxh 9P8azSVY1rNn8rnrQSNsfoEv+TrPT+22iTcQd4Z2/wKc0D51CoGxX4+uY98ybwj5 U47ZUZCVZcnNk4sNnNxevoAEmgCUd092/qcgyOM7PXCsNl/X2g9NfwNu/XtRaog3 3Y1T5TUk+apNKNs2bul2OTvcrwS4GUFLTZTRZp4BuvqkCiuZvv2InWnVVDOjaUXU vpMANFVy8ARYS25Elxeje3v1Dwya/5ZAl8sJhTx9QX7OhTzW1Cn71q2Ur3GYojjz CNGs/rik586HM+NFpRZcHXAnN/nLMZVQjDQxuD3istp3ozqgXKjHqBnecwV6JZKb tAmymfqtYXU= =C/Mp -----END PGP SIGNATURE----- Merge tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 core updates from Ingo Molnar: - Optimize the kcfi call sequence (Peter Zijlstra) - Use sfence for wmb() if SSE is available (Yao Zi) * tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/locking: Use sfence for wmb() if SSE is available x86/kcfi: Optimize call sequence |
||
|
Linus Torvalds
|
3dd1f7447f |
x86/build changes for v7.3:
- Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC39sRHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1ji4w/+JbckikVS6wCwuvQUBu0g9wP5zR26Vt5G ZxZtpvqnke0McQLJPA5OftbCEHCt2UHkU/dRSCLHU7pC2aeNrrVM2KJACaxWhnWp oBt7u87BUftNJ8GkQ4Qsdc/QwV4NoAT2BN8LkW0SLH8taamKjNgI826QZ9SM/+zF x2ZMxBUuPnHoVrH++gwWs6VnnNoaKOEG/AeROpOziyRVhbfWDOQq+JMtz4oClq0B TP3vlw69ds6AICrz3y72ytzcoPGru+rg32pSslpeNR4K4yj5IaM6NeWvG6eVZwd8 Uaj7Q+UkGBfuLGRJVSmjalM7+M4aorTvFal4SYA7Af80+4H5viIpwtJPp0Ez3JXB SmPgIiKqGGVfxKgQ40TUg2tjU6YaiXRqc9reHth+c2payK0+54wFXj+14liJnMz9 W2a+UQkUnR0I9cAbSTJxQ5ztl83uT4UD4z+dvqdeIbjw71lDn4tp1nfOndPR5Se+ q+GfA3M2sAABOZ01OGP8/g1KiOpT2sd0Jmr0P+Wz9ZUigDF/FIYe8MSWF3VCa/Ew lerynCceAP+5ib0lDtFpmnqB9/VMTML6ncvmPSM/A/nB18Na3i3h8e1MNRTMbvmS bpha4kn8+6xjDs1M+Mxm/P/RgfUvEXSMPmWD/xDYVSFazKaZJ/5bLHauNWxRweuN YNZed+t3tTM= =EM3D -----END PGP SIGNATURE----- Merge tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 build update from Ingo Molnar: - Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz) * tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/build: Only align ENTRY_TEXT to PMD_SIZE if necessary |
||
|
Linus Torvalds
|
09d639f1f1 |
x86/boot changes for v7.3:
- Misc simplifications and cleanups (Thorsten Blum) Signed-off-by: Ingo Molnar <mingo@kernel.org> -----BEGIN PGP SIGNATURE----- iQJFBAABCgAvFiEEBpT5eoXrXCwVQwEKEnMQ0APhK1gFAmqC314RHG1pbmdvQGtl cm5lbC5vcmcACgkQEnMQ0APhK1iIAw//TIQZjw3mST7UIjJiS3YDZEZlYkjyejVi 0FnkZhWomySzIzkJIQlIgWPjgVHI+5mZD7ZDjte0aCc4gRGPnqsxV6os/0QZVdr3 VlDOKdYK0Z31ynE16ceOXV1pHRNyqpD2sDu4sGuszK/oG2EdsBS7RTNkTtIRtnTd uLo3JfYgDs5QgLr6W3Lex8jKvyJCDMCLiHv7BLINnIPZq6G4UdlVufNQONq0qwzs 0hIonKW2WA3/wbG1ffLE/XdJE22K+yY+wdUgzj07CeEve94jX8yY/SS4FYJ+uIWN 5oeup/lIEF/j1JVrH/nAY2aqO0JgIurlkPqYlnrBXIE5hQu5tthNpvu9CFc37Atc FEwcHoSk491vw9JRNucakUs3/b05ujsD0Hi42z8t/3ZpBrfV1oNedcqa5ugdJABR 5IQtAGJz3MlD0GhkkKhSGpfwPCZQeY0BzeZjVLMpA2SK6sDYQMEODK7hUkWRIQ9b Rd2VBRwEw+bOVYSHe7m1LOMToPgdvjulHz+5t6VTm1D1gCiGmv5O6YA2gcw+nPQU vyBsYmUvny7FuF0Gpt3nQRgPZxgzuTs1Kcd2ZdIX57X59rCplOu+N/KKRiAbqC0m BPn+IMT1kUmhwvYvR21n1aEJZGLrf/xsz0cZXAeU8keOgMHy9iCHedu5rV3e6pfu RyYDZA4cwwE= =OiK3 -----END PGP SIGNATURE----- Merge tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip Pull x86 boot updates from Ingo Molnar: - Misc simplifications and cleanups (Thorsten Blum) * tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: x86/boot: Use bool and IS_ENABLED() to simplify query_edd() x86/boot: Use IS_ENABLED() to simplify built-in-or-module checks x86/purgatory: Return bool from verify_sha256_digest() |
||
|
Jisheng Zhang
|
9939e4cf59 |
i3c: dw: make struct dw_i3c_cmd smaller
The dw_i3c_cmd is dynamically allocated, make it smaller. For example on 64bit platforms, we reduce the size from 48 bytes to 32 bytes. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260813044603.22425-1-jszhang@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Linus Torvalds
|
8dcef8882a |
x86/msr updates for v7.3:
- Streamline the x86 MSR handling APIs along the 64-bit
variants, simplifying the interfaces. Removal of the
old APIs is planned for the next cycle, to reduce
churn & integration pain. (Juergen Gross)
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull x86 MSR updates from Ingo Molnar:
- Streamline the x86 MSR handling APIs along the 64-bit variants,
simplifying the interfaces.
Removal of the old APIs is planned for the next cycle, to reduce
churn & integration pain (Juergen Gross)
* tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
x86/mce: Work around build warning after MSR-interface switch
cpufreq: Stop using 32-bit MSR interfaces
x86/featctl: Stop using 32-bit MSR interfaces
KVM/x86: Stop using 32-bit MSR interfaces
x86/mtrr: Stop using 32-bit MSR interfaces
acpi: Stop using 32-bit MSR interfaces
powercap: Stop using 32-bit MSR interfaces
thermal/intel: Stop using 32-bit MSR interfaces
x86/olpc: Stop using 32-bit MSR interfaces
x86/hyperv: Stop using 32-bit MSR interfaces
hwmon: Stop using 32-bit MSR interfaces
EDAC: Stop using 32-bit MSR interfaces
x86/cpu: Stop using 32-bit MSR interfaces
x86/apic: Stop using 32-bit MSR interfaces
x86/resctrl: Stop using 32-bit MSR interfaces
x86/tsc: Stop using 32-bit MSR interfaces
x86/amd: Stop using 32-bit MSR interfaces
x86/pci: Stop using 32-bit MSR interfaces
x86/hygon: Stop using 32-bit MSR interfaces
x86/mce: Stop using 32-bit MSR interfaces
...
|
||
|
Jisheng Zhang
|
942e9a5b67 |
i3c: dw: use COMMAND_PORT_TRANSFER_ARG instead of hardcoding
Use the well defined COMMAND_PORT_TRANSFER_ARG macro instead of hardcoding '1'. Signed-off-by: Jisheng Zhang <jszhang@kernel.org> Reviewed-by: Frank Li <Frank.Li@nxp.com> Link: https://patch.msgid.link/20260813044225.22237-1-jszhang@kernel.org Signed-off-by: Alexandre Belloni <alexandre.belloni@bootlin.com> |
||
|
Linus Torvalds
|
e2457a664e |
Scheduler updates for v7.3:
Load-balancing updates:
- Series to 'flatten the pick': improve cgroup scheduling, which has
always been problematic and painful, which has caused various
scheduling misbehavior such as the mishandling of reniced tasks et al.
Add various cgroup weight distribution methods via cgroup_mode:
'up', 'max', 'concur' and 'tasks' - with the default being 'concur'
which is the most precise yet also most expensive version.
Finally, change cgroup scheduling to a single runqueue.
(Peter Zijlstra)
- Series to improve the scheduling latency of short slice tasks
(Vincent Guittot)
- Series to fix cluster scheduling in the presence of asymmetric capacity
(Ricardo Neri)
- Prefer fully idle cores for NOHZ balancing (Andrea Righi)
- Don't trigger active load-balancing if src_rq->curr is not on_rq
(Xin Zhao)
PSI updates:
- Skip irqtime accounting when no new irq time has elapsed
(Usama Arif)
Scheduler debugging updates:
- Remove unused schedstats (Shrikanth Hegde)
- Defer freeing of cpumask memblock memory to initcall
(Waiman Long)
Misc fixes and updates by Yu C Chen, K Prateek Nayak, Peter Zijlstra,
Vincent Guittot, Xin Zhao, Yury Norov, Zhan Xusheng.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull scheduler updates from Ingo Molnar:
"Load-balancing updates:
- 'flatten the pick': improve cgroup scheduling, which has always
been problematic and painful, which has caused various scheduling
misbehavior such as the mishandling of reniced tasks et al.
Add various cgroup weight distribution methods via cgroup_mode:
'up', 'max', 'concur' and 'tasks' - with the default being 'concur'
which is the most precise yet also most expensive version.
Finally, change cgroup scheduling to a single runqueue (Peter
Zijlstra)
- Series to improve the scheduling latency of short slice tasks
(Vincent Guittot)
- Series to fix cluster scheduling in the presence of asymmetric
capacity (Ricardo Neri)
- Prefer fully idle cores for NOHZ balancing (Andrea Righi)
- Don't trigger active load-balancing if src_rq->curr is not on_rq
(Xin Zhao)
PSI updates:
- Skip irqtime accounting when no new irq time has elapsed (Usama
Arif)
Scheduler debugging updates:
- Remove unused schedstats (Shrikanth Hegde)
- Defer freeing of cpumask memblock memory to initcall (Waiman Long)
Misc fixes and updates by Yu C Chen, K Prateek Nayak, Peter Zijlstra,
Vincent Guittot, Xin Zhao, Yury Norov, Zhan Xusheng"
* tag 'sched-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (33 commits)
sched/fair: Fix flat hierarchy
sched/isolation: Defer freeing of cpumask memblock memory to initcall
sched/topology: Restore SD_PREFER_SIBLING in domains with asymmetric capacity
sched/fair: Allow load balancing between CPUs of identical capacity
sched/fair: Skip misfit load accounting when the destination CPU cannot help
sched/fair: Check CPU capacity before comparing group types during load balance
sched/fair: Also gate overloaded status update for SD_ASYM_CPUCAPACITY
sched/fair: Do not skip CPUs of similar capacity with busy SMT siblings
sched/fair: Prefer fully idle cores for NOHZ balancing
stop_machine: Make stop_one_cpu_nowait() return void
sched/eevdf: Delayed dequeue task can't preempt
sched/fair: Fix stale comments referring to removed CFS concepts
sched/debug: Remove unused schedstats
sched/psi: skip irqtime accounting when no new irq time has elapsed
sched/fair: Reflow sched_balance_rq()
sched/fair: Simplify balance_interval reset logic in sched_balance_rq()
sched/fair: Don't trigger active lb if src_rq->curr is not on_rq
sched/eevdf: Speedup short slice task scheduling
sched/eevdf: Always update slice protection
sched/eevdf: Cancel slice protection if short slice task is eligible
...
|
||
|
Linus Torvalds
|
dfa35434d7 |
Locking updates for v7.3:
Futexes:
- Use runtime constants for futex_hash computation
(K Prateek Nayak, Peter Zijlstra)
- Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
- Avoid private hash use-after-free on final put (Felix Hoffmann)
- Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
Rust integration updates:
- Implement refcounted interrupt disable and SpinLockIrq for Rust
(Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
- Rust sync: add helpers for mb, dma_mb and friends;
add generic memory barriers and use LKMM atomics
instead of Rust atomics in the revocable code (Gary Guo)
- Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
Lock debugging:
- Add qspinlock contended_release tracepoint
(Dmitry Ilvokhin, Peter Zijlstra)
- Enable the printing of held locks of remote running tasks and print
task CPU (Ingo Molnar)
- percpu-rwsem: Annotate intentional data race in readers_active_check()
(Sun Shaojie)
Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
Naveen Kumar Chaudhary and Thomas Huth.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull locking updates from Ingo Molnar:
"Futexes:
- Use runtime constants for futex_hash computation (K Prateek Nayak,
Peter Zijlstra)
- Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
- Avoid private hash use-after-free on final put (Felix Hoffmann)
- Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
Rust integration updates:
- Implement refcounted interrupt disable and SpinLockIrq for Rust
(Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
- Rust sync: add helpers for mb, dma_mb and friends; add generic
memory barriers and use LKMM atomics instead of Rust atomics in the
revocable code (Gary Guo)
- Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
Lock debugging:
- Add qspinlock contended_release tracepoint (Dmitry Ilvokhin, Peter
Zijlstra)
- Enable the printing of held locks of remote running tasks and print
task CPU (Ingo Molnar)
- percpu-rwsem: Annotate intentional data race in readers_active_check()
(Sun Shaojie)
Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
Naveen Kumar Chaudhary and Thomas Huth"
* tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
rust: sync: Introduce SpinLockIrq::lock_with() and friends
rust: sync: Add SpinLockIrq
rust: sync: Use super::* in spinlock.rs
rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
rust: Introduce interrupt module
s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
sched: Avoid signed comparison of preempt_count() in __cant_migrate()
sched: Remove the unused preempt_offset parameter of __cant_sleep()
locking: Switch to _irq_{disable,enable}() variants in cleanup guards
irq: Add KUnit test for refcounted interrupt enable/disable
irq,spin_lock: Add counted interrupt disabling/enabling
openrisc: Include <linux/cpumask.h> in smp.h
preempt: Introduce __preempt_count_{sub,add}_return()
preempt: Introduce HARDIRQ_DISABLE_BITS
preempt: Track NMI nesting to separate per-CPU counter
futex: Tell kmemleak we're not leaking __futex_queues
x86/paravirt: Trace contended_release on unlock
tracing/lock: Use TRACE_EVENT_FN() for contended_release
...
|
||
|
Linus Torvalds
|
8915457146 |
Performance events updates for v7.3:
uprobes updates:
- Patch series to fix a category of bugs with optimized uprobes that
can clobber the redzone area with call instruction storing return
address on stack where user code may keep temporary data without
adjusting RSP. Fix this by moving the optimized uprobes on top of
10-bytes NOP instruction, so we can squeeze another instruction to
escape the redzone area before doing the call.
(Jiri Olsa, Andrii Nakryiko)
- Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
(Puranjay Mohan)
Intel CPU PMU driver updates:
- Optimize ACR handling in match_prev_assignment() (Dapeng Mi)
- Patch series to fix various PMU driver bugs and data leaks (Dapeng Mi)
- Fix Intel PT stop/start with no update (Adrian Hunter)
Intel uncore PMU driver updates:
- Series to fix various uncore PMU setup robustness bugs (Zide Chen)
AMD uncore PMU driver updates:
- Add group validation (Sandipan Das)
Misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen.
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull performance events updates from Ingo Molnar:
"uprobes updates:
- Fix a category of bugs with optimized uprobes that can clobber the
redzone area with call instruction storing return address on stack
where user code may keep temporary data without adjusting RSP.
Fix this by moving the optimized uprobes on top of 10-bytes NOP
instruction, so we can squeeze another instruction to escape the
redzone area before doing the call (Jiri Olsa, Andrii Nakryiko)
- Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
(Puranjay Mohan)
Intel CPU PMU driver updates:
- Optimize ACR handling in match_prev_assignment() (Dapeng Mi)
- Fix various PMU driver bugs and data leaks (Dapeng Mi)
- Fix Intel PT stop/start with no update (Adrian Hunter)
Intel uncore PMU driver updates:
- Fix various uncore PMU setup robustness bugs (Zide Chen)
AMD uncore PMU driver updates:
- Add group validation (Sandipan Das)
.. and misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen"
* tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
perf/x86: Optimize ACR handling in match_prev_assignment()
perf/x86/intel: Fix intel_cap handling on hybrid PMUs
perf/x86: Remove stale fixed counter helper and fix hybrid PMU access
perf/x86/intel: Unwind cpuc state if PEBS buffer setup fails
perf/x86: Guard intel_pmu_cpu_dead() against invalid hybrid PMU casts
perf/x86: Free hybrid state on PMU init failure
perf/x86: Unregister PMI handler on PMU init failure
perf/x86/intel/pt: Fix stop/start with no update
perf/x86/intel/pt: Use bitwise access for PERF_HES_STOPPED
perf/x86/intel/pt: Factor out pt_config_enable()
uprobes: Switch uretprobes_srcu to SRCU-fast-updown
srcu: Add lock guard for srcu_fast_updown flavor
perf/x86/intel/pt: Drop kernel-doc for deleted struct members
perf/x86/amd/uncore: Add group validation
selftests/bpf: Add tests for forked/cloned optimized uprobes
selftests/bpf: Add tests for uprobe nop10 red zone clobbering
selftests/bpf: Add reattach tests for uprobe syscall
selftests/bpf: Change uprobe/usdt trigger bench code to use nop10
selftests/bpf: Change uprobe syscall tests to use nop10
selftests/bpf: Emit nop,nop10 instructions combo for x86_64 arch
...
|
||
|
Linus Torvalds
|
a0acd94e38 |
Objtool updates for v7.3:
- Fix various klp-build bugs reported by Joe Lawrence
(Josh Poimboeuf, Joe Lawrence)
- Misc fixes and cleanups (Puranjay Mohan, Thomas Huth and Ingo Molnar).
Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull objtool updates from Ingo Molnar:
- Fix various klp-build bugs reported by Joe Lawrence (Josh Poimboeuf,
Joe Lawrence)
- Misc fixes and cleanups (Puranjay Mohan, Thomas Huth and Ingo Molnar)
* tag 'objtool-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
objtool/klp: Fix vmlinux klp relocations for EXPORT_SYMBOL_FOR_MODULES()
objtool/klp: Fix .kcfi_traps special section extraction
objtool/klp: Fix vmlinux .klp.symid link error for .exitcall.exit symbols
objtool/klp: Fix line numbers in Module.symvers parse errors
objtool/klp: Fix relocations for EXPORT_SYMBOL_FOR_MODULES() symbols
objtool/klp: Allow new references to module exports
objtool/klp: Don't match local symbols against exports
objtool/klp: Fix cross-module klp relocation section naming
objtool/klp: Explicitly disallow patching or referencing init code/data
objtool/klp: Ignore replacement offset of empty x86 alternatives
objtool/klp: Fix size of empty special section entries
objtool/klp: Fix vmlinux .klp.symid link error for .no_trim_symbol symbols
objtool/headers: Sync tools/include/linux/objtool_types.h with include/linux/objtool_types.h
objtool: Replace __ASSEMBLY__ with __ASSEMBLER__ in header files
objtool/klp: Fix symbol resolution for duplicate data symbols
objtool/klp: Add .klp.symid for sympos disambiguation
objtool/klp: Skip hidden directories when finding objects
objtool/klp: Fix false module dependencies caused by dead relocs
objtool/klp: Normalize Module.symvers paths to module names
objtool/klp: Fix module name normalization for paths with dots
|
||
|
Linus Torvalds
|
1200d84f4c |
powerpc updates for 7.3
- powerpc: Enable Rust for ppc64le - ppc4xx gpio driver updates - Add power12 base enablement support - Validate arch_compat against host compatibility mode - Simplify bootx_scan_dt_build_struct() in powermac platform - powerpc: implement get_direction() in cpm2 - Use cpu_relax() in ps3_create_spu() - Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass - fixes to handle pseries watchdogs in kdump path - powerpc/irq: Fix missing r2 clobber in PCREL inline assembly - ppc44x: Set GPIO chip parent - KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl BY: Amit Machhiwal - KVM: powerpc: Use generic xfer to guest work function - Enable to run posix cpu timers in task context - misc fixes and cleanups Thanks to: Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton, Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater, Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra, Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan, Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya (IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde, Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal Chourasia, Wentao Guan, Yanfei Xu -----BEGIN PGP SIGNATURE----- iQIzBAABCgAdFiEEqX2DNAOgU8sBX3pRpnEsdPSHZJQFAmqCj/4ACgkQpnEsdPSH ZJSKNg//VNpbzMKVPrdljgLn3P8/flWUUMvbjT0j2s5OExeFPjM9tvJQucMficJz eQWaEZbaczRPdtBDt96NXXDIoXGpfapS1Tj18OjVjCRtQdKV4DGfNdE5wC2tKwvA 1R6x5FT6pGxCRuNY9o3aAo/qcEJLCWCtOvrgdlT8C9ZV8Zh/GRl5TXBYqB4LFYAd WI1Jc4s97VFNtPSh7HtImd5n8T8vNWqQzi1rUAWTYQPduV8eHKFhnyu9vIh2ISv8 p6dZzE6mLrgn7zU8HW2z5nRyRZFRXtWt3i7/0IGSsJYtBoREsFw2d3LJfwMZXwdU hXNbw9OlwDmPUF8+qFIEVu3czfiFW1naNEXP00NJfM+67acXIpFEiJ/LvuLENzC4 gtX1VKUCQthWxJESnX1WrKnP7BAjUGe691CronRoYIJNctLnrCA7SOfJ2El4i40v v0+oz8KceGE3AU/1SpcKC8WlrHGb7qDBHS1HD8wpdcMsL1LTUWlghAptc/CrpRSb vDbiQAK7RHAEVSx6CsW1pVdFGOk5k7QQgeX6ptyK2aliQhuS4UA5b7zMmE+agPY4 Pro2bQLZYPfIW92OB1Zf+h69bUn4aVyp5ov1U1kTJuFHSEH+9+ZVemZg/f2fN8LV bwgErs0YPL/N5099qolj9mmNvn8RcVwub6nIGrVryGbBLprlV3o= =4Mg5 -----END PGP SIGNATURE----- Merge tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux Pull powerpc updates from Madhavan Srinivasan: - Enable Rust for ppc64le - ppc4xx gpio driver updates - Add power12 base enablement support - Validate arch_compat against host compatibility mode - Simplify bootx_scan_dt_build_struct() in powermac platform - Implement get_direction() in cpm2 - Use cpu_relax() in ps3_create_spu() - Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass - Fixes to handle pseries watchdogs in kdump path - Fix missing r2 clobber in PCREL inline assembly - Set GPIO chip parent on ppc44x - KVM: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl - KVM: Use generic xfer to guest work function - Enable to run posix cpu timers in task context - Misc fixes and cleanups Thanks to Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton, Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater, Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra, Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan, Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya (IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde, Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal Chourasia, Wentao Guan, and Yanfei Xu. * tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (62 commits) powerpc/pseries/iommu: switch to Default DMA window during kdump powerpc/configs: enable CONFIG_RAS to fix EDAC support KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl KVM: PPC: Book3S HV: Add support for compat CPU capabilities for KVM on PowerNV KVM: PPC: Book3S HV: Implement compat CPU capability retrieval for KVM on PowerVM KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl gpio: ppc44x: use dev_name() for chip label gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro gpio: ppc44x: drop PPC-specific IO helpers gpio: ppc44x: Convert GPIO to generic MMIO gpio: ppc44x: Use platform resource helper for GPIO MMIO gpio: ppc44x: Use module platform driver helper for GPIO gpio: ppc44x: update all 4xx to 44x gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio KVM: PPC: Use min() in kvm_vm_ioctl_check_extension() KVM: PPC: booke: Use min() in watchdog_next_timeout() powerpc/perf: Add power12 Base Performance Monitoring support powerpc: Add Power12 architected mode powerpc: Add Power12 raw mode powerpc/pseries: Limit PVR list to 16 entries for CAS negotiation ... |
||
|
Linus Torvalds
|
85cdaca697 |
arm64 updates for 7.3
ACPI:
- Combine reads of AMU counters into a single FFH feedback counter op.
Confidential computing:
- Fix smp_processor_id() in preemptible context when retrieving an
attestation token inside a realm.
- Convert pKVM over to a "CC platform".
- Clean-up our SWIOTLB configuration in preparation for reworking the
handling of encrypted/decryped DMA buffers in the dma-mapping tree.
CPU errata handling:
- Work around broken device memory ordering on NVIDIA Olympus cores.
- Fix broken 'nospectre_bhb' command-line option.
- Select the idle loop backend instruction on the command-line.
CPU features:
- Replace our BBML2-noabort feature with the new architectural BBML3
feature.
- Disable in-kernel BTI for recent versions of Clang due to issues with
livepatch that are still being investigated.
- Clean-up documentation describing which ID register fields are exposed
to userspace.
Interrupts:
- Preliminary work towards supporting FEAT_NMI, which cleans up our
IRQ entry code and fixes some latent issues with pseudo-NMI.
- Support for an SDEI backend to trigger an NMI backtrace.
Memory management:
- Treat all devices as coherent when CLIDR_EL1.LoC == 0.
- Fix no-map handling of sub-page-sized regions.
- Second attempt at unmapping the linear aliases of the kernel data and
bss sections.
- Fix EFI runtime calls when software-PAN is enabled.
Miscellaneous:
- Add Mark Rutland as a reviewer!
- Tidy-up our futex cmpxchg logic when using the new LSUI instructions.
- Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when selecting
HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS.
- Fix a false-positive KCSCAN splat in the delay loop.
- Use a portable typedef for 128-bit scalar types in our UAPI headers.
- Non-critical fixes for Sashiko reports all over.
MPAM:
- Hook MPAM memory bandwidth counters into resctrl's counter assignment
interface.
- Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that it
also applies to 63 bit counters.
Perf:
- Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and CPU
PMU (NVIDIA Olympus again!)
- Add support for the DDR PMU on Marvell CN20K SoCs.
- Add support for Picoheart implementations of the DCW PCIe PMU.
- Add support for Channel/Rank/Bank filtering in the CXL PMU driver.
- Add support for 64-bit counters in the CSPMU device.
- Add support for revision 2 of the CMN S3 PMU.
Ptrace:
- Fix a decade-old bug in our handling of seccomp and tracing on syscall
entry.
- Fix regset handling for inactive SVE and SSVE registers.
Selftests
- Add some tests for the decade-old bug that we just tried to fix in our
syscall entry path.
- Fix SVE test crash on SME-only CPUs.
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Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
"There's a reasonable amount of stuff here, including a bunch of
updates to the perf PMU drivers and some MPAM updates to expose the
memory bandwidth counters via resctrl.
On the architecture side, some highlights include support for BBML3
and steps towards support for an architectural NMI solution, all
wrapped up in a web of fixes for latent issues identified by Sashiko.
ACPI:
- Combine reads of AMU counters into a single FFH feedback counter op
Confidential computing:
- Fix smp_processor_id() in preemptible context when retrieving an
attestation token inside a realm
- Convert pKVM over to a "CC platform"
- Clean-up our SWIOTLB configuration in preparation for reworking the
handling of encrypted/decryped DMA buffers in the dma-mapping tree
CPU errata handling:
- Work around broken device memory ordering on NVIDIA Olympus cores
- Fix broken 'nospectre_bhb' command-line option
- Select the idle loop backend instruction on the command-line
CPU features:
- Replace our BBML2-noabort feature with the new architectural BBML3
feature
- Disable in-kernel BTI for recent versions of Clang due to issues
with livepatch that are still being investigated
- Clean-up documentation describing which ID register fields are
exposed to userspace
Interrupts:
- Preliminary work towards supporting FEAT_NMI, which cleans up our
IRQ entry code and fixes some latent issues with pseudo-NMI
- Support for an SDEI backend to trigger an NMI backtrace
Memory management:
- Treat all devices as coherent when CLIDR_EL1.LoC == 0
- Fix no-map handling of sub-page-sized regions
- Second attempt at unmapping the linear aliases of the kernel data
and bss sections
- Fix EFI runtime calls when software-PAN is enabled
Miscellaneous:
- Add Mark Rutland as a reviewer!
- Tidy-up our futex cmpxchg logic when using the new LSUI
instructions
- Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when
selecting HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS
- Fix a false-positive KCSCAN splat in the delay loop
- Use a portable typedef for 128-bit scalar types in our UAPI headers
- Non-critical fixes for Sashiko reports all over
MPAM:
- Hook MPAM memory bandwidth counters into resctrl's counter
assignment interface
- Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that
it also applies to 63 bit counters
Perf:
- Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and
CPU PMU (NVIDIA Olympus again!)
- Add support for the DDR PMU on Marvell CN20K SoCs
- Add support for Picoheart implementations of the DCW PCIe PMU
- Add support for Channel/Rank/Bank filtering in the CXL PMU driver
- Add support for 64-bit counters in the CSPMU device
- Add support for revision 2 of the CMN S3 PMU
Ptrace:
- Fix a decade-old bug in our handling of seccomp and tracing on
syscall entry
- Fix regset handling for inactive SVE and SSVE registers
Selftests
- Add some tests for the decade-old bug that we just tried to fix in
our syscall entry path
- Fix SVE test crash on SME-only CPUs"
* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (95 commits)
arm64/efi: Avoid voluntary preemption with efi_mm installed
arm64: bti: Disable in-kernel BTI with recent versions of Clang
arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit
irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs
arm64: Disable KCSAN instrumentation in delay.o
arm_mpam: Disable driver unbind to avoid UAF
arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt
perf: arm_pmuv3: Zero initialize hw_id branch stack field
arm64: mm: Unmap kernel data/bss entirely from the linear map
iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature
perf/arm-cmn: Support CMN S3 r2
perf/arm-cmn: Plumb in new filter types
perf/arm-cmn: Refactor event filter data
perf/arm-cmn: Refactor event filter programming
perf/arm-cmn: Rename filter variables for clarity
arm64: mm: fix accidental linear mapping of no-map reserved memory
tools: Ensure tools copy of linux/filter.h exports the UAPI
kselftest/arm64: Fix abi test compilation errors
arch: arm64: add early_param idle=<wfi|yield|nop>
arm64: entry: mask DAIF before returning from C EL1 handlers
...
|
||
Tejun Heo
|
6eca8f94d8 |
workqueue: Annotate cb_lock nesting when draining a dead BH pool
On PREEMPT_RT, bh_worker() wraps work item execution in pool->cb_lock to
provide a handshake for canceling BH work items. When a CPU goes down,
drain_dead_softirq_workfn() runs the dead pool's bh_worker() nested inside
the local pool's bh_worker(), acquiring the cb_locks of two different pools
without a nesting annotation. lockdep reports possible recursive locking:
============================================
WARNING: possible recursive locking detected
--------------------------------------------
ktimers/0/16 is trying to acquire lock:
ffff8880b873a990 (&pool->cb_lock){+...}-{3:3}, at: bh_worker+0x7d/0x880
but task is already holding lock:
ffff8880b863a990 (&pool->cb_lock){+...}-{3:3}, at: bh_worker+0x7d/0x880
Call Trace:
bh_worker+0x7d/0x880 kernel/workqueue.c:3688
drain_dead_softirq_workfn+0x95/0x220 kernel/workqueue.c:3763
process_scheduled_works+0xa8e/0x14e0 kernel/workqueue.c:3405
bh_worker+0x46a/0x880 kernel/workqueue.c:3708
tasklet_action+0xc/0x70 kernel/softirq.c:965
The nesting can't deadlock. A pool's bh_worker() runs nested only while the
pool's CPU is dead, entered from a live pool's bh_worker() on the draining
CPU, so the ordering is always live to dead. CPU hotplug operations are
serialized and the drain is synchronous, so the nesting depth never exceeds
two. Annotate the inner acquisition with SINGLE_DEPTH_NESTING.
Signed-off-by: Tejun Heo <tj@kernel.org>
Reported-by: syzbot+1bd20115328f8254ed62@syzkaller.appspotmail.com
Closes: https://syzkaller.appspot.com/bug?extid=1bd20115328f8254ed62
Fixes:
|
||
Binbin Zhou
|
523ee23d49 |
ASoC: loongson: Fix naming of machine event and DAPM widgets
Rename `tegra_machine_event` to `loongson_asoc_machine_event` and `loongson_aosc_dapm_widgets` to `loongson_asoc_dapm_widgets` to accurately reflect the hardware platform. Update all references accordingly. No functional change is introduced. Signed-off-by: Binbin Zhou <zhoubinbin@loongson.cn> Reviewed-by: Keguang Zhang <keguang.zhang@gmail.com> Reviewed-by: Huacai Chen <chenhuacai@loongson.cn> Link: https://patch.msgid.link/20260818092052.3596347-1-zhoubinbin@loongson.cn Signed-off-by: Mark Brown <broonie@kernel.org> |
||
|
Linus Torvalds
|
d24f5cdbef |
Rust changes for v7.3
Toolchain and infrastructure:
- Warn when using 'bindgen' < 0.72.1 with 'libclang' >= 22, since that
combination may fail to build. It includes a probe for the bug in
case 'bindgen' happens to be patched, and tests.
In parallel, Nathan updated the instructions for the kernel.org
LLVM+Rust toolchains so that the latest version of 'bindgen' is
installed, which should avoid some of these situations.
- Support testing 'rust_is_available.sh' with 'bash' as '/bin/sh'.
- Fix an objtool warning by adding one more 'noreturn' function for
Rust 1.99.0 (expected 2026-10-01).
- Fix build error in the 'rusttest' target due to ambiguity when the
'rustc-dev' component is installed, which was uncovered by the work
to support Rust's GCC backend ('rustc_codegen_gcc').
- Fix future Clang warnings in the upcoming powerpc support due to
macro redefinitions in the UAPI helper header by including the
arch-aware 'ioctl.h' header.
'kernel' crate:
- Rework module ownership support:
- Move the module-related types into a new 'module' module and make
the 'THIS_MODULE' pointer a constant of 'ModuleMetadata' so that
modules can provide the pointer in const contexts, and add a
'this_module' 'const fn' to retrieve it.
This was enabled by upstream Rust's work on the 'const_mut_refs'
and 'const_refs_to_static' features which were stabilized back
in Rust 1.83.0.
- Teach '#[vtable]' to associate implementations with their owning
module, defaulting to the local one, including fallbacks for
doctests, uses within the 'kernel' crate (like upcoming KUnit
'#[test]'s for DRM) and 'rusttest'.
- Set 'fops.owner' from the module pointer for DRM and miscdevice.
- Migrate Rust Binder and configfs away from the old 'THIS_MODULE'
'static' and finally remove it from the 'module!' macro.
- 'num' module:
- Add the new 'casts' module for lossless integer conversions.
Rust's 'core' library's 'From' implementations do not cover
conversions that are not portable or future-proof. However, the
kernel supports a narrower set of architectures, which makes it
helpful to provide more infallible conversions, instead of having
developers use 'as' casts, which carry the risk of silently
losing data.
This goes along with previous work we did to avoid casts in Rust
kernel code since they are more powerful than needed.
Thus, provide safe 'const' conversion functions (e.g.
'usize_as_u64' and 'u64_into_u8'), as well as the 'FromSafeCast'
and 'IntoSafeCast' extension traits that provide conversions that
are known to be lossless in the kernel, and an 'arch' submodule
defining conversions that are known to be lossless on particular
architectures (e.g. 64-bit platforms). For instance:
// Conversion in const context.
const USIZED_CONST: usize = u8_as_usize(255u8);
// Non-const conversions.
let a = u64::from_safe_cast(4096usize);
let b: u64 = 4096usize.into_safe_cast();
- Add 'Bounded::shr_exact' method in the vein of 'try_shrink' which
shifts a bounded right only if it loses no set bits.
- Fix unsoundness issue in the 'Bounded::shr' method by rejecting,
at compile-time, shifts of at least the type's bit width.
- 'fmt' module:
- Route '{:p}' raw pointer formatting through the kernel's hashed
'%p' format to prevent address leaks, including support for width
and padding. Include tests for both 'no_hash_pointers' case and
the default (hashed) one.
- Fix the '{:p}' forwarding implementation, which could print the
address of a temporary stack variable.
- 'time' module:
- Make 'Delta' generic over its time unit, with a default unit of
nanoseconds ('Nsec'), preserving the existing behavior. Then, add
a 'Jiffy' time unit.
- Add the 'Delta::as_millis_ceil()' method.
- Fix 'as_micros_ceil()' rounding near 'i64::MAX', which could
yield a result one microsecond too small.
- 'sync' module:
- Implement 'ForeignOwnable' for 'ARef<T>', allowing C code to own
an 'ARef<T>'.
- Add a safe abstraction for 'rcu_barrier()'.
- 'error' module: add all of the remaining error codes, except the
deprecated compatibility aliases.
- 'bug' module:
- Fix build error on UML in 'warn_on!' for callers from within
the 'kernel' crate.
- Fix future 'dead_code' warning on arm and loongarch64 and under
'CONFIG_BUG=n' in 'warn_on!', which would trigger with the
upcoming SRCU abstractions.
- Fix future build error in 'rusttest' on cross-compilation cases,
which would trigger when 'warn_on!' has callers inside the
'kernel' crate.
- 'bitfield' module: fix build error for the upcoming support for
Rust's GCC backend ('rustc_codegen_gcc') by always inlining a couple
conversions used in tests.
'pin-init' crate:
- User-visible changes:
- Merge the '__pinned_init' and '__init' methods and make 'Init'
a marker trait.
- Introduce public APIs 'raw_init' and 'raw_try_init' to prevent
users from needing to invoke the internal
'__pinned_init'/'__init' methods.
- Emit errors for duplicate '#[pin]' attributes.
- Link 'Zeroable::zeroed' and 'pin_init::zeroed' in documentation.
- Other changes:
- Fix unwind safety issues.
- Clean up lint 'allow' and 'expect's.
- Overhaul '#[cfg]' handling to pave the way for tuple structs and
self-referential structs.
- Mark many functions as '#[inline]' for better codegen with '-C
opt-level=s' ('CC_OPTIMIZE_FOR_SIZE').
'MAINTAINERS':
- Update 'MODULE SUPPORT' to cover the new 'module' module.
And some other fixes, cleanups and improvements.
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Merge tag 'rust-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux
Pull Rust updates from Miguel Ojeda:
"Toolchain and infrastructure:
- Warn when using 'bindgen' < 0.72.1 with 'libclang' >= 22, since
that combination may fail to build. It includes a probe for the bug
in case 'bindgen' happens to be patched, and tests
In parallel, Nathan updated the instructions for the kernel.org
LLVM+Rust toolchains so that the latest version of 'bindgen' is
installed, which should avoid some of these situations
- Support testing 'rust_is_available.sh' with 'bash' as '/bin/sh'
- Fix an objtool warning by adding one more 'noreturn' function for
Rust 1.99.0 (expected 2026-10-01)
- Fix build error in the 'rusttest' target due to ambiguity when the
'rustc-dev' component is installed, which was uncovered by the work
to support Rust's GCC backend ('rustc_codegen_gcc')
- Fix future Clang warnings in the upcoming powerpc support due to
macro redefinitions in the UAPI helper header by including the
arch-aware 'ioctl.h' header
'kernel' crate:
- Rework module ownership support:
- Move the module-related types into a new 'module' module and
make the 'THIS_MODULE' pointer a constant of 'ModuleMetadata'
so that modules can provide the pointer in const contexts, and
add a 'this_module' 'const fn' to retrieve it
This was enabled by upstream Rust's work on the 'const_mut_refs'
and 'const_refs_to_static' features which were stabilized back
in Rust 1.83.0
- Teach '#[vtable]' to associate implementations with their
owning module, defaulting to the local one, including fallbacks
for doctests, uses within the 'kernel' crate (like upcoming
KUnit '#[test]'s for DRM) and 'rusttest'
- Set 'fops.owner' from the module pointer for DRM and
miscdevice
- Migrate Rust Binder and configfs away from the old
'THIS_MODULE' 'static' and finally remove it from the 'module!'
macro
- 'num' module:
- Add the new 'casts' module for lossless integer conversions
Rust's 'core' library's 'From' implementations do not cover
conversions that are not portable or future-proof. However, the
kernel supports a narrower set of architectures, which makes it
helpful to provide more infallible conversions, instead of
having developers use 'as' casts, which carry the risk of
silently losing data
This goes along with previous work we did to avoid casts in
Rust kernel code since they are more powerful than needed
Thus, provide safe 'const' conversion functions (e.g.
'usize_as_u64' and 'u64_into_u8'), as well as the
'FromSafeCast' and 'IntoSafeCast' extension traits that provide
conversions that are known to be lossless in the kernel, and an
'arch' submodule defining conversions that are known to be
lossless on particular architectures (e.g. 64-bit platforms).
For instance:
// Conversion in const context.
const USIZED_CONST: usize = u8_as_usize(255u8);
// Non-const conversions.
let a = u64::from_safe_cast(4096usize);
let b: u64 = 4096usize.into_safe_cast();
- Add 'Bounded::shr_exact' method in the vein of 'try_shrink'
which shifts a bounded right only if it loses no set bits
- Fix unsoundness issue in the 'Bounded::shr' method by
rejecting, at compile-time, shifts of at least the type's bit
width
- 'fmt' module:
- Route '{:p}' raw pointer formatting through the kernel's hashed
'%p' format to prevent address leaks, including support for
width and padding. Include tests for both 'no_hash_pointers'
case and the default (hashed) one
- Fix the '{:p}' forwarding implementation, which could print the
address of a temporary stack variable
- 'time' module:
- Make 'Delta' generic over its time unit, with a default unit of
nanoseconds ('Nsec'), preserving the existing behavior. Then,
add a 'Jiffy' time unit
- Add the 'Delta::as_millis_ceil()' method
- Fix 'as_micros_ceil()' rounding near 'i64::MAX', which could
yield a result one microsecond too small
- 'sync' module:
- Implement 'ForeignOwnable' for 'ARef<T>', allowing C code to
own an 'ARef<T>'
- Add a safe abstraction for 'rcu_barrier()'
- 'error' module: add all of the remaining error codes, except the
deprecated compatibility aliases
- 'bug' module:
- Fix build error on UML in 'warn_on!' for callers from within
the 'kernel' crate
- Fix future 'dead_code' warning on arm and loongarch64 and under
'CONFIG_BUG=n' in 'warn_on!', which would trigger with the
upcoming SRCU abstractions
- Fix future build error in 'rusttest' on cross-compilation
cases, which would trigger when 'warn_on!' has callers inside
the 'kernel' crate
- 'bitfield' module: fix build error for the upcoming support for
Rust's GCC backend ('rustc_codegen_gcc') by always inlining a
couple conversions used in tests
'pin-init' crate:
- User-visible changes:
- Merge the '__pinned_init' and '__init' methods and make 'Init'
a marker trait
- Introduce public APIs 'raw_init' and 'raw_try_init' to prevent
users from needing to invoke the internal '__pinned_init' and
'__init' methods
- Emit errors for duplicate '#[pin]' attributes
- Link 'Zeroable::zeroed' and 'pin_init::zeroed' in documentation
- Other changes:
- Fix unwind safety issues
- Clean up lint 'allow' and 'expect's
- Overhaul '#[cfg]' handling to pave the way for tuple structs
and self-referential structs
- Mark many functions as '#[inline]' for better codegen with '-C
opt-level=s' ('CC_OPTIMIZE_FOR_SIZE')
'MAINTAINERS':
- Update 'MODULE SUPPORT' to cover the new 'module' module
And some other fixes, cleanups and improvements"
* tag 'rust-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: (54 commits)
rust: add functions and traits for lossless integer conversions
rust: kernel: add `LocalModule` fallback for `#[vtable]` `impl`s
rust: fmt: route {:p} through HashedPtr to prevent address leaks
rust: fmt: fix {:p} printing stack addresses
rust: module: update MAINTAINERS to cover module.rs
rust: macros: remove `THIS_MODULE` static from `module!`
rust_binder: use `LocalModule` for `THIS_MODULE`
rust: configfs: use `LocalModule` for `THIS_MODULE`
rust: miscdevice: set fops.owner from driver module pointer
rust: drm: set fops.owner from driver module pointer
rust: macros: auto-insert OwnerModule in #[vtable]
rust: doctest: add LocalModule fallback for #[vtable] ThisModule
rust: module: add `THIS_MODULE` const to `ModuleMetadata` trait
rust: module: move module types into `module.rs`
rust: num: add Bounded::shr_exact
rust: num: reject Bounded::shr overshifts at build time
rust: num: use const_assert! in Bounded
rust: uapi: replace direct asm-generic/ioctl.h include with linux/ioctl.h
rust: time: add Delta::as_millis_ceil()
rust: time: add jiffies time unit for Delta
...
|
||
|
Mark Brown
|
721d6331ad |
ASoC: qcom: Fix AudioReach TDM review findings
Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com> says:
Address review findings for the recently merged AudioReach TDM backend
support.
The first patch fixes a typo in the newly added QAIF clock ID names by
renaming the LAPSS-prefixed identifiers to LPASS and updating all
corresponding in-tree users.
The remaining patches address issues identified in the AudioReach TDM
configuration and machine-driver paths:
- Zero-initialize AudioReach module configuration structures so
unspecified slot parameters correctly fall back to topology defaults.
- Distinguish between missing TDM configuration and malformed TDM slot
properties by using separate return codes, preventing valid DT
configuration errors from being silently ignored.
- Fix sc8280xp TDM hw_params error handling by properly distinguishing
optional and invalid TDM slot configurations and propagating errors
accordingly.
All issues were reported by Sashiko.
Link:
https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com
Link: https://patch.msgid.link/20260818084655.3240284-1-prasad.kumpatla@oss.qualcomm.com
|
||
Prasad Kumpatla
|
8593dc5f05 |
ASoC: qcom: sc8280xp: Fix TDM hw_params error handling
Treat -ENOENT from TDM slot parsing as the optional "configuration not present" case and continue to propagate real configuration errors. Also ignore -ENOTSUPP from optional DAI format and codec sysclk callbacks, apply codec_dai_fmt to codec DAIs on TDM links, and use a signed bclk_freq variable so errors from snd_soc_tdm_params_to_bclk() are handled correctly. Reported-by: Sashiko <sashiko-bot@kernel.org> Link: https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com> Link: https://patch.msgid.link/20260818084655.3240284-5-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org> |
||
|
Prasad Kumpatla
|
0a9e00d5eb |
ASoC: qcom: common: Distinguish missing and invalid TDM slot configuration
qcom_snd_parse_dai_tdm_slots() uses -EINVAL for both missing DAI-link TDM configuration and malformed TDM slot properties. As a result, qcom_snd_apply_dai_tdm_slots() silently ignores configuration errors. Return -ENOENT for missing DAI-link configuration and preserve -EINVAL for malformed TDM slot properties. Reported-by: Sashiko <sashiko-bot@kernel.org> Link: https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com> Link: https://patch.msgid.link/20260818084655.3240284-4-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org> |
||
|
Prasad Kumpatla
|
9c9fb79f97 |
ASoC: qcom: qdsp6: Zero-initialize AudioReach module config
q6apm_dai_prepare() and q6apm_dai_compr_set_params() build an AudioReach module config on the stack and populate only the fields needed for the stream type. Audio IF media-format setup treats zero slot_mask, nslots_per_frame and slot_width as a request to use the topology defaults. Leave those fields uninitialized and random stack data can override the topology values sent to the DSP. Initialize the whole config structure so omitted fields reliably retain their zero/default meaning. Reported-by: Sashiko <sashiko-bot@kernel.org> Link: https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com> Link: https://patch.msgid.link/20260818084655.3240284-3-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org> |
||
|
Prasad Kumpatla
|
c41ac86802 |
ASoC: dt-bindings: qcom,q6dsp-lpass-ports: Rename QAIF clock IDs
The QAIF clock IDs were introduced with a LAPSS prefix typo. Rename them to use the existing LPASS naming convention and update all corresponding in-tree users. Since these IDs are new, rename them directly instead of keeping backward-compatible aliases. Reported-by: Sashiko <sashiko-bot@kernel.org> Link: https://sashiko.dev/#/patchset/20260804070307.117119-1-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com> Link: https://patch.msgid.link/20260818084655.3240284-2-prasad.kumpatla@oss.qualcomm.com Signed-off-by: Mark Brown <broonie@kernel.org> |
||
|
Linus Torvalds
|
2df813c9a6 |
xen: branch for v7.3-rc1
-----BEGIN PGP SIGNATURE----- iJEEABYKADkWIQRTLbB6QfY48x44uB6AXGG7T9hjvgUCan7REhsUgAAAAAAEAA5t YW51MiwyLjUrMS4xMiwyLDIACgkQgFxhu0/YY75juwEAlRbj7JVSkZ8QzreYEtGm RO+PqRW1e2A7LWX6HHIxdWwBAMz/TX2SNAtKhNs4ggJmOyasQNGqjrpxuRa/1d/n FzQO =3QbE -----END PGP SIGNATURE----- Merge tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip Pull xen updates from Juergen Gross: - Small cleanups for the Xen ACPI pad driver and the gnttab driver - Fix an issue with Xen PV device initialization seen with QubesOS tests - Fixes for the Xen balloon driver and the xenbus driver - Simplify Xen related kernel configuration * tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip: xenbus: Unregister reboot notifier on init failure x86/xen: Drop CONFIG_XEN_PVHVM_SMP xen: Drop CONFIG_XEN_AUTO_XLATE xen: Drop CONFIG_XEN_PVHVM x86/xen: Remove redundant config dependency on X86_LOCAL_APIC x86/xen: fix init of balloon stats again xen/xenbus: check otherend_id only after it has been initialized xen/xenbus: log more information when device state got reset Xen/gnttab: adjust two uses of sizeof() ACPI: PAD: xen: Stop setting acpi_device_name/class() |
||
Changwoo Min
|
5f01293930 |
sched_ext: Allow ops.cgroup_set_bandwidth() to be sleepable
ops.cgroup_set_bandwidth() is delivered from scx_group_set_bandwidth(), which runs from the cpu.max cgroup interface write path (tg_set_bandwidth()) in process context. scx_group_set_bandwidth() holds percpu_down_read(&scx_cgroup_ops_rwsem), whose read side may sleep. The call site is therefore sleepable, like ops.cgroup_init(). bpf_scx_check_member() rejects a sleepable program on any member not on its allow-list, so a BPF scheduler cannot allocate -- which is sleepable -- when a cgroup gains a cpu.max limit at runtime; it must instead pre-reserve memory for a callback that cannot allocate. Add cgroup_set_bandwidth() to the allow-list so the callback can allocate on demand, and document that it may block. A scheduler must decide at load time whether to mark the callback sleepable, but the allow-list entry is a verifier property with no symbol to probe. Add a compatibility marker whose presence in the kernel's BTF lets userspace detect this support: DEFINE_SCX_COMPAT_MARKER() emits an empty, callerless function, here scx_compat_marker_cgroup_set_bandwidth_may_sleep(). It is __used __retain so neither the compiler nor the linker (under CONFIG_LD_DEAD_CODE_DATA_ELIMINATION) drops it. The markers share the scx_compat_marker_ prefix and are collected near the end of ext.c so more can be added as further capabilities appear. Signed-off-by: Changwoo Min <changwoo@igalia.com> Signed-off-by: Tejun Heo <tj@kernel.org> |
||
Michal Clapinski
|
ed98f8e27a |
ipmi:si: Add async init to ipmi_si
Added a new config option to allow offloading individual calls to try_smi_init() using workqueue. Saves 100ms on my system. Signed-off-by: Michal Clapinski <mclapinski@google.com> Message-ID: <20260810074851.306979-1-mclapinski@google.com> Signed-off-by: Corey Minyard <corey@minyard.net> |