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Daniel Vetter
91dae758bd drm-misc-next for v6.12: 
UAPI Changes:
 
 virtio:
 - Define DRM capset
 
 Cross-subsystem Changes:
 
 dma-buf:
 - heaps: Clean up documentation
 
 printk:
 - Pass description to kmsg_dump()
 
 Core Changes:
 
 CI:
 - Update IGT tests
 - Point upstream repo to GitLab instance
 
 modesetting:
 - Introduce Power Saving Policy property for connectors
 - Add might_fault() to drm_modeset_lock priming
 - Add dynamic per-crtc vblank configuration support
 
 panic:
 - Avoid build-time interference with framebuffer console
 
 docs:
 - Document Colorspace property
 
 scheduler:
 - Remove full_recover from drm_sched_start
 
 TTM:
 - Make LRU walk restartable after dropping locks
 - Allow direct reclaim to allocate local memory
 
 Driver Changes:
 
 amdgpu:
 - Support Power Saving Policy connector property
 
 ast:
 - astdp: Support AST2600 with VGA; Clean up HPD
 
 bridge:
 - Silence error message on -EPROBE_DEFER
 - analogix: Clean aup
 - bridge-connector: Fix double free
 - lt6505: Disable interrupt when powered off
 - tc358767: Make default DP port preemphasis configurable
 
 gma500:
 - Update i2c terminology
 
 ivpu:
 - Add MODULE_FIRMWARE()
 
 lcdif:
 - Fix pixel clock
 
 loongson:
 - Use GEM refcount over TTM's
 
 mgag200:
 - Improve BMC handling
 - Support VBLANK intterupts
 
 nouveau:
 - Refactor and clean up internals
 - Use GEM refcount over TTM's
 
 panel:
 - Shutdown fixes plus documentation
 - Refactor several drivers for better code sharing
 - boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
   DT; Fix porch parameter
 - edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
   BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
   CMN N116BCP-EA2, CSW MNB601LS1-4
 - himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
 - ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
 - jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
   for code sharing
 
 sti:
 - Fix module owner
 
 stm:
 - Avoid UAF wih managed plane and CRTC helpers
 - Fix module owner
 - Fix error handling in probe
 - Depend on COMMON_CLK
 - ltdc: Fix transparency after disabling plane; Remove unused interrupt
 
 tegra:
 - Call drm_atomic_helper_shutdown()
 
 v3d:
 - Clean up perfmon
 
 vkms:
 - Clean up
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Merge tag 'drm-misc-next-2024-08-01' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-next

drm-misc-next for v6.12:

UAPI Changes:

virtio:
- Define DRM capset

Cross-subsystem Changes:

dma-buf:
- heaps: Clean up documentation

printk:
- Pass description to kmsg_dump()

Core Changes:

CI:
- Update IGT tests
- Point upstream repo to GitLab instance

modesetting:
- Introduce Power Saving Policy property for connectors
- Add might_fault() to drm_modeset_lock priming
- Add dynamic per-crtc vblank configuration support

panic:
- Avoid build-time interference with framebuffer console

docs:
- Document Colorspace property

scheduler:
- Remove full_recover from drm_sched_start

TTM:
- Make LRU walk restartable after dropping locks
- Allow direct reclaim to allocate local memory

Driver Changes:

amdgpu:
- Support Power Saving Policy connector property

ast:
- astdp: Support AST2600 with VGA; Clean up HPD

bridge:
- Silence error message on -EPROBE_DEFER
- analogix: Clean aup
- bridge-connector: Fix double free
- lt6505: Disable interrupt when powered off
- tc358767: Make default DP port preemphasis configurable

gma500:
- Update i2c terminology

ivpu:
- Add MODULE_FIRMWARE()

lcdif:
- Fix pixel clock

loongson:
- Use GEM refcount over TTM's

mgag200:
- Improve BMC handling
- Support VBLANK intterupts

nouveau:
- Refactor and clean up internals
- Use GEM refcount over TTM's

panel:
- Shutdown fixes plus documentation
- Refactor several drivers for better code sharing
- boe-th101mb31ig002: Support for starry-er88577 MIPI-DSI panel plus
  DT; Fix porch parameter
- edp: Support AOU B116XTN02.3, AUO B116XAN06.1, AOU B116XAT04.1,
  BOE NV140WUM-N41, BOE NV133WUM-N63, BOE NV116WHM-A4D, CMN N116BCA-EA2,
  CMN N116BCP-EA2, CSW MNB601LS1-4
- himax-hx8394: Support Microchip AC40T08A MIPI Display panel plus DT
- ilitek-ili9806e: Support Densitron DMT028VGHMCMI-1D TFT plus DT
- jd9365da: Support Melfas lmfbx101117480 MIPI-DSI panel plus DT; Refactor
  for code sharing

sti:
- Fix module owner

stm:
- Avoid UAF wih managed plane and CRTC helpers
- Fix module owner
- Fix error handling in probe
- Depend on COMMON_CLK
- ltdc: Fix transparency after disabling plane; Remove unused interrupt

tegra:
- Call drm_atomic_helper_shutdown()

v3d:
- Clean up perfmon

vkms:
- Clean up

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
From: Thomas Zimmermann <tzimmermann@suse.de>
Link: https://patchwork.freedesktop.org/patch/msgid/20240801121406.GA102996@linux.fritz.box
 2024-08-08 18:58:46 +02:00
Dave Airlie
a4172af304 drm-xe-next for 6.12 
UAPI Changes:
 - Rename xe perf layer as xe observation layer, but was
   also made available via fixes to previous verison (Ashutosh)
 - Use write-back caching mode for system memory on DGFX,
   but was also mad available via fixes to previous version (Thomas)
 - Expose SIMD16 EU mask in topology query for userspace to know
   the type of EU, as available in PVC, Lunar Lake and Battlemage
   (Lucas)
 - Return ENOBUFS instead of ENOMEM in vm_bind if failure is tied
   to an array of binds (Matthew Brost)
 
 Driver Changes:
 - Log cleanup moving messages to debug priority (Michal Wajdeczko)
 - Add timeout to fences to adhere to dma_buf rules (Matthew Brost)
 - Rename old engine nomenclature to exec_queue (Matthew Brost)
 - Convert multiple bind ops to 1 job (Matthew Brost)
 - Add error injection for vm bind to help testing error path
   (Matthew Brost)
 - Fix error handling in page table to propagate correctly
   to userspace (Matthew Brost)
 - Re-organize and cleanup SR-IOV related registers (Michal Wajdeczko)
 - Make the device write barrier compatible with VF (Michal Wajdeczko)
 - New display workarounds for Battlemage (Matthew  Auld)
 - New media workarounds for Lunar Lake and Battlemage (Ngai-Mint Kwan)
 - New graphics workarounds for Lunar Lake (Bommu Krishnaiah)
 - Tracepoint updates (Matthew Brost, Nirmoy Das)
 - Cleanup the header generation for OOB workarounds (Lucas De Marchi)
 - Fix leaking HDCP-related object (Nirmoy Das)
 - Serialize L2 flushes to avoid races (Tejas Upadhyay)
 - Log pid and comm on job timeout (José Roberto de Souza)
 - Simplify boilerplate code for live kunit (Michal Wajdeczko)
 - Improve kunit skips for live kunit (Michal Wajdeczko)
 - Fix xe_sync cleanup when handling xe_exec ioctl (Ashutosh Dixit)
 - Limit fair VF LMEM provisioning (Michal Wajdeczko)
 - New workaround to fence mmio writes in Lunar Lake (Tejas Upadhyay)
 - Warn on writes inaccessible register in VF (Michal Wajdeczko)
 - Fix register lookup in VF (Michal Wajdeczko)
 - Add GSC support for Battlemage (Alexander Usyskin)
 - Fix wedging only the GT in which timeout occurred (Matthew Brost)
 - Block device suspend when wedging (Matthew Brost)
 - Handle compression and migration changes for Battlemage
   (Akshata Jahagirdar)
 - Limit access of stolen memory for Lunar Lake (Uma Shankar)
 - Fail invalid addresses during user fence creation (Matthew Brost)
 - Refcount xe_file to safely and accurately store fdinfo stats
   (Umesh Nerlige Ramappa)
 - Cleanup and fix PM reference for TLB invalidation code
   (Matthew Brost)
 - Fix PM reference handling when communicating with GuC (Matthew Brost)
 - Add new BO flag for 2 MiB alignement and use in VF (Michal Wajdeczko)
 - Simplify MMIO setup for multi-tile platforms (Lucas De Marchi)
 - Add check for uninitialized access to OOB workarounds
   (Lucas De Marchi)
 - New GSC and HuC firmware blobs for Lunar Lake and Battlemage
   (Daniele Ceraolo Spurio)
 - Unify mmio wait logic (Gustavo Sousa)
 - Fix off-by-one when processing RTP rules (Lucas De Marchi)
 - Future-proof migrate logic with compressed PAT flag (Matt Roper)
 - Add WA kunit tests for Battlemage (Lucas De Marchi)
 - Test active tracking for workaorunds with kunit (Lucas De Marchi)
 - Add kunit tests for RTP with no actions (Lucas De Marchi)
 - Unify parse of OR rules in RTP (Lucas De Marchi)
 - Add performance tuning for Battlemage (Sai Teja Pottumuttu)
 - Make bit masks unsigned (Geert Uytterhoeven)
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Merge tag 'drm-xe-next-2024-07-30' of https://gitlab.freedesktop.org/drm/xe/kernel into drm-next

drm-xe-next for 6.12

UAPI Changes:
- Rename xe perf layer as xe observation layer, but was
  also made available via fixes to previous verison (Ashutosh)
- Use write-back caching mode for system memory on DGFX,
  but was also mad available via fixes to previous version (Thomas)
- Expose SIMD16 EU mask in topology query for userspace to know
  the type of EU, as available in PVC, Lunar Lake and Battlemage
  (Lucas)
- Return ENOBUFS instead of ENOMEM in vm_bind if failure is tied
  to an array of binds (Matthew Brost)

Driver Changes:
- Log cleanup moving messages to debug priority (Michal Wajdeczko)
- Add timeout to fences to adhere to dma_buf rules (Matthew Brost)
- Rename old engine nomenclature to exec_queue (Matthew Brost)
- Convert multiple bind ops to 1 job (Matthew Brost)
- Add error injection for vm bind to help testing error path
  (Matthew Brost)
- Fix error handling in page table to propagate correctly
  to userspace (Matthew Brost)
- Re-organize and cleanup SR-IOV related registers (Michal Wajdeczko)
- Make the device write barrier compatible with VF (Michal Wajdeczko)
- New display workarounds for Battlemage (Matthew  Auld)
- New media workarounds for Lunar Lake and Battlemage (Ngai-Mint Kwan)
- New graphics workarounds for Lunar Lake (Bommu Krishnaiah)
- Tracepoint updates (Matthew Brost, Nirmoy Das)
- Cleanup the header generation for OOB workarounds (Lucas De Marchi)
- Fix leaking HDCP-related object (Nirmoy Das)
- Serialize L2 flushes to avoid races (Tejas Upadhyay)
- Log pid and comm on job timeout (José Roberto de Souza)
- Simplify boilerplate code for live kunit (Michal Wajdeczko)
- Improve kunit skips for live kunit (Michal Wajdeczko)
- Fix xe_sync cleanup when handling xe_exec ioctl (Ashutosh Dixit)
- Limit fair VF LMEM provisioning (Michal Wajdeczko)
- New workaround to fence mmio writes in Lunar Lake (Tejas Upadhyay)
- Warn on writes inaccessible register in VF (Michal Wajdeczko)
- Fix register lookup in VF (Michal Wajdeczko)
- Add GSC support for Battlemage (Alexander Usyskin)
- Fix wedging only the GT in which timeout occurred (Matthew Brost)
- Block device suspend when wedging (Matthew Brost)
- Handle compression and migration changes for Battlemage
  (Akshata Jahagirdar)
- Limit access of stolen memory for Lunar Lake (Uma Shankar)
- Fail invalid addresses during user fence creation (Matthew Brost)
- Refcount xe_file to safely and accurately store fdinfo stats
  (Umesh Nerlige Ramappa)
- Cleanup and fix PM reference for TLB invalidation code
  (Matthew Brost)
- Fix PM reference handling when communicating with GuC (Matthew Brost)
- Add new BO flag for 2 MiB alignement and use in VF (Michal Wajdeczko)
- Simplify MMIO setup for multi-tile platforms (Lucas De Marchi)
- Add check for uninitialized access to OOB workarounds
  (Lucas De Marchi)
- New GSC and HuC firmware blobs for Lunar Lake and Battlemage
  (Daniele Ceraolo Spurio)
- Unify mmio wait logic (Gustavo Sousa)
- Fix off-by-one when processing RTP rules (Lucas De Marchi)
- Future-proof migrate logic with compressed PAT flag (Matt Roper)
- Add WA kunit tests for Battlemage (Lucas De Marchi)
- Test active tracking for workaorunds with kunit (Lucas De Marchi)
- Add kunit tests for RTP with no actions (Lucas De Marchi)
- Unify parse of OR rules in RTP (Lucas De Marchi)
- Add performance tuning for Battlemage (Sai Teja Pottumuttu)
- Make bit masks unsigned (Geert Uytterhoeven)

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

From: Lucas De Marchi <lucas.demarchi@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/k7xuktfav4zmtxxjr77glu2hszypvzgmzghoumh757nqfnk7kn@ccfi4ts3ytbk
 2024-08-05 18:47:43 +10:00
Linus Torvalds
de9c2c66ad Linux 6.11-rc2 2024-08-04 13:50:53 -07:00
Tetsuo Handa
b88f55389a profiling: remove profile=sleep support 
The kernel sleep profile is no longer working due to a recursive locking
bug introduced by commit 42a20f86dc ("sched: Add wrapper for get_wchan()
to keep task blocked")

Booting with the 'profile=sleep' kernel command line option added or
executing

  # echo -n sleep > /sys/kernel/profiling

after boot causes the system to lock up.

Lockdep reports

  kthreadd/3 is trying to acquire lock:
  ffff93ac82e08d58 (&p->pi_lock){....}-{2:2}, at: get_wchan+0x32/0x70

  but task is already holding lock:
  ffff93ac82e08d58 (&p->pi_lock){....}-{2:2}, at: try_to_wake_up+0x53/0x370

with the call trace being

   lock_acquire+0xc8/0x2f0
   get_wchan+0x32/0x70
   __update_stats_enqueue_sleeper+0x151/0x430
   enqueue_entity+0x4b0/0x520
   enqueue_task_fair+0x92/0x6b0
   ttwu_do_activate+0x73/0x140
   try_to_wake_up+0x213/0x370
   swake_up_locked+0x20/0x50
   complete+0x2f/0x40
   kthread+0xfb/0x180

However, since nobody noticed this regression for more than two years,
let's remove 'profile=sleep' support based on the assumption that nobody
needs this functionality.

Fixes: 42a20f86dc ("sched: Add wrapper for get_wchan() to keep task blocked")
Cc: stable@vger.kernel.org # v5.16+
Signed-off-by: Tetsuo Handa <penguin-kernel@I-love.SAKURA.ne.jp>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2024-08-04 13:36:28 -07:00
Linus Torvalds
a5dbd76a89 X86 fixes: 
- Prevent a deadlock on cpu_hotplug_lock in the aperf/mperf driver.
 
       A recent change in the ACPI code which consolidated code pathes moved
       the invocation of init_freq_invariance_cppc() to be moved to a CPU
       hotplug handler. The first invocation on AMD CPUs ends up enabling a
       static branch which dead locks because the static branch enable tries to
       acquire cpu_hotplug_lock but that lock is already held write by the
       hotplug machinery.
 
       Use static_branch_enable_cpuslocked() instead and take the hotplug
       lock read for the Intel code path which is invoked from the
       architecture code outside of the CPU hotplug operations.
 
     - Fix the number of reserved bits in the sev_config structure bit field
       so that the bitfield does not exceed 64 bit.
 
     - Add missing Zen5 model numbers
 
     - Fix the alignment assumptions of pti_clone_pgtable() and
       clone_entry_text() on 32-bit:
 
       The code assumes PMD aligned code sections, but on 32-bit the kernel
       entry text is not PMD aligned. So depending on the code size and
       location, which is configuration and compiler dependent, entry text
       can cross a PMD boundary. As the start is not PMD aligned adding PMD
       size to the start address is larger than the end address which
       results in partially mapped entry code for user space. That causes
       endless recursion on the first entry from userspace (usually #PF).
 
       Cure this by aligning the start address in the addition so it ends up
       at the next PMD start address.
 
       clone_entry_text() enforces PMD mapping, but on 32-bit the tail might
       eventually be PTE mapped, which causes a map fail because the PMD for
       the tail is not a large page mapping. Use PTI_LEVEL_KERNEL_IMAGE for
       the clone() invocation which resolves to PTE on 32-bit and PMD on
       64-bit.
 
     - Zero the 8-byte case for get_user() on range check failure on 32-bit
 
       The recend consolidation of the 8-byte get_user() case broke the
       zeroing in the failure case again. Establish it by clearing ECX
       before the range check and not afterwards as that obvioulsy can't be
       reached when the range check fails
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Merge tag 'x86-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Thomas Gleixner:

 - Prevent a deadlock on cpu_hotplug_lock in the aperf/mperf driver.

   A recent change in the ACPI code which consolidated code pathes moved
   the invocation of init_freq_invariance_cppc() to be moved to a CPU
   hotplug handler. The first invocation on AMD CPUs ends up enabling a
   static branch which dead locks because the static branch enable tries
   to acquire cpu_hotplug_lock but that lock is already held write by
   the hotplug machinery.

   Use static_branch_enable_cpuslocked() instead and take the hotplug
   lock read for the Intel code path which is invoked from the
   architecture code outside of the CPU hotplug operations.

 - Fix the number of reserved bits in the sev_config structure bit field
   so that the bitfield does not exceed 64 bit.

 - Add missing Zen5 model numbers

 - Fix the alignment assumptions of pti_clone_pgtable() and
   clone_entry_text() on 32-bit:

   The code assumes PMD aligned code sections, but on 32-bit the kernel
   entry text is not PMD aligned. So depending on the code size and
   location, which is configuration and compiler dependent, entry text
   can cross a PMD boundary. As the start is not PMD aligned adding PMD
   size to the start address is larger than the end address which
   results in partially mapped entry code for user space. That causes
   endless recursion on the first entry from userspace (usually #PF).

   Cure this by aligning the start address in the addition so it ends up
   at the next PMD start address.

   clone_entry_text() enforces PMD mapping, but on 32-bit the tail might
   eventually be PTE mapped, which causes a map fail because the PMD for
   the tail is not a large page mapping. Use PTI_LEVEL_KERNEL_IMAGE for
   the clone() invocation which resolves to PTE on 32-bit and PMD on
   64-bit.

 - Zero the 8-byte case for get_user() on range check failure on 32-bit

   The recend consolidation of the 8-byte get_user() case broke the
   zeroing in the failure case again. Establish it by clearing ECX
   before the range check and not afterwards as that obvioulsy can't be
   reached when the range check fails

* tag 'x86-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/uaccess: Zero the 8-byte get_range case on failure on 32-bit
  x86/mm: Fix pti_clone_entry_text() for i386
  x86/mm: Fix pti_clone_pgtable() alignment assumption
  x86/setup: Parse the builtin command line before merging
  x86/CPU/AMD: Add models 0x60-0x6f to the Zen5 range
  x86/sev: Fix __reserved field in sev_config
  x86/aperfmperf: Fix deadlock on cpu_hotplug_lock
 2024-08-04 08:57:08 -07:00
Linus Torvalds
61ca6c7829 Two fixes for the timer/clocksource code: 
- The recent fix for making the take over of the broadcast timer more
       reliable retrieves a per CPU pointer in preemptible context.
       This went unnoticed in testing as some compilers hoist the access into
       the non-preemotible section where the pointer is actually used, but
       obviously compilers can rightfully invoke it where the code put it.
 
       Move it into the non-preemptible section right to the actual usage
       side to cure it.
 
     - The clocksource watchdog is supposed to emit a warning when the retry
       count is greater than one and the number of retries reaches the
       limit. The condition is backwards and warns always when the count is
       greater than one. Fixup the condition to prevent spamming dmesg.
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Merge tag 'timers-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull timer fixes from Thomas Gleixner:
 "Two fixes for the timer/clocksource code:

   - The recent fix to make the take over of the broadcast timer more
     reliable retrieves a per CPU pointer in preemptible context.

     This went unnoticed in testing as some compilers hoist the access
     into the non-preemotible section where the pointer is actually
     used, but obviously compilers can rightfully invoke it where the
     code put it.

     Move it into the non-preemptible section right to the actual usage
     side to cure it.

   - The clocksource watchdog is supposed to emit a warning when the
     retry count is greater than one and the number of retries reaches
     the limit.

     The condition is backwards and warns always when the count is
     greater than one. Fixup the condition to prevent spamming dmesg"

* tag 'timers-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  clocksource: Fix brown-bag boolean thinko in cs_watchdog_read()
  tick/broadcast: Move per CPU pointer access into the atomic section
 2024-08-04 08:50:16 -07:00
Linus Torvalds
6cc82dc2bd Scheduler fixes: 
- When stime is larger than rtime due to accounting imprecision, then
      utime = rtime - stime becomes negative. As this is unsigned math, the
      result becomes a huge positive number. Cure it by resetting stime to
      rtime in that case, so utime becomes 0.
 
    - Restore consistent state when sched_cpu_deactivate() fails.
 
      When offlining a CPU fails in sched_cpu_deactivate() after the SMT
      present counter has been decremented, then the function aborts but
      fails to increment the SMT present counter and leaves it imbalanced.
      Consecutive operations cause it to underflow. Add the missing fixup
      for the error path.
 
      As SMT accounting the runqueue needs to marked online again in the
      error exit path to restore consistent state.
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Merge tag 'sched-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Thomas Gleixner:

 - When stime is larger than rtime due to accounting imprecision, then
   utime = rtime - stime becomes negative. As this is unsigned math, the
   result becomes a huge positive number.

   Cure it by resetting stime to rtime in that case, so utime becomes 0.

 - Restore consistent state when sched_cpu_deactivate() fails.

   When offlining a CPU fails in sched_cpu_deactivate() after the SMT
   present counter has been decremented, then the function aborts but
   fails to increment the SMT present counter and leaves it imbalanced.
   Consecutive operations cause it to underflow. Add the missing fixup
   for the error path.

   For SMT accounting the runqueue needs to marked online again in the
   error exit path to restore consistent state.

* tag 'sched-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/core: Fix unbalance set_rq_online/offline() in sched_cpu_deactivate()
  sched/core: Introduce sched_set_rq_on/offline() helper
  sched/smt: Fix unbalance sched_smt_present dec/inc
  sched/smt: Introduce sched_smt_present_inc/dec() helper
  sched/cputime: Fix mul_u64_u64_div_u64() precision for cputime
 2024-08-04 08:46:14 -07:00
Linus Torvalds
1ddeb0ef3c perf/x86 subsystem fixes: 
- Move the smp_processor_id() invocation back into the non-preemtible
        region, so that the result is valid to use.
 
      - Add the missing package C2 residency counters for Sierra Forest CPUs
        to make the newly added support actually useful
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Merge tag 'perf-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 perf fixes from Thomas Gleixner:

 - Move the smp_processor_id() invocation back into the non-preemtible
   region, so that the result is valid to use

 - Add the missing package C2 residency counters for Sierra Forest CPUs
   to make the newly added support actually useful

* tag 'perf-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86: Fix smp_processor_id()-in-preemptible warnings
  perf/x86/intel/cstate: Add pkg C2 residency counter for Sierra Forest
 2024-08-04 08:42:18 -07:00
Linus Torvalds
953f776459 A couple of fixes for interrupt chip drivers: 
- Ensure to skip the clear register space in the MBIGEN driver when
     calculating the node register index. Otherwise the clear register is
     clobbered and the wrong node registers are accessed.
 
   - Fix a signed/unsigned confusion in the loongarch CPU driver which
     converts an error code to a huge "valid" interrupt number.
 
   - Convert the mesion GPIO interrupt controller lock to a raw spinlock so
     it works on RT.
 
   - Add a missing static to a internal function in the pic32 EVIC driver.
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Merge tag 'irq-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull irq fixes from Thomas Gleixner:
 "A couple of fixes for interrupt chip drivers:

   - Make sure to skip the clear register space in the MBIGEN driver
     when calculating the node register index. Otherwise the clear
     register is clobbered and the wrong node registers are accessed.

   - Fix a signed/unsigned confusion in the loongarch CPU driver which
     converts an error code to a huge "valid" interrupt number.

   - Convert the mesion GPIO interrupt controller lock to a raw spinlock
     so it works on RT.

   - Add a missing static to a internal function in the pic32 EVIC
     driver"

* tag 'irq-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  irqchip/mbigen: Fix mbigen node address layout
  irqchip/meson-gpio: Convert meson_gpio_irq_controller::lock to 'raw_spinlock_t'
  irqchip/irq-pic32-evic: Add missing 'static' to internal function
  irqchip/loongarch-cpu: Fix return value of lpic_gsi_to_irq()
 2024-08-04 08:36:57 -07:00
Linus Torvalds
3bc70ad120 Two fixes for locking and jump labels: 
- Ensure that the atomic_cmpxchg() conditions are correct and evaluating
      to true on any non-zero value except 1. The missing check of the
      return value leads to inconsisted state of the jump label counter.
 
    - Add a missing type conversion in the paravirt spinlock code which
      makes loongson build again.
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Merge tag 'locking-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking fixes from Thomas Gleixner:
 "Two fixes for locking and jump labels:

   - Ensure that the atomic_cmpxchg() conditions are correct and
     evaluating to true on any non-zero value except 1. The missing
     check of the return value leads to inconsisted state of the jump
     label counter.

   - Add a missing type conversion in the paravirt spinlock code which
     makes loongson build again"

* tag 'locking-urgent-2024-08-04' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  jump_label: Fix the fix, brown paper bags galore
  locking/pvqspinlock: Correct the type of "old" variable in pv_kick_node()
 2024-08-04 08:32:31 -07:00
Rob Herring (Arm)
ff58838015 arm: dts: arm: versatile-ab: Fix duplicate clock node name 
Commit 04f08ef291 ("arm/arm64: dts: arm: Use generic clock and
regulator nodenames") renamed nodes and created 2 "clock-24000000" nodes
(at different paths).

The kernel can't handle these duplicate names even though they are at
different paths.  Fix this by renaming one of the nodes to "clock-pclk".

This name is aligned with other Arm boards (those didn't have a known
frequency to use in the node name).

Fixes: 04f08ef291 ("arm/arm64: dts: arm: Use generic clock and regulator nodenames")
Reported-by: Guenter Roeck <linux@roeck-us.net>
Signed-off-by: Rob Herring (Arm) <robh@kernel.org>
Tested-by: Guenter Roeck <linux@roeck-us.net>
Reviewed-by: Linus Walleij <linus.walleij@linaro.org>
Tested-by: Linus Walleij <linus.walleij@linaro.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2024-08-04 08:24:15 -07:00
Linus Torvalds
3f3f6d6123 'smb3 client fixes 
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Merge tag '6.11-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fixes from Steve French:

 - two reparse point fixes

 - minor cleanup

 - additional trace point (to help debug a recent problem)

* tag '6.11-rc1-smb-client-fixes' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: update internal version number
  smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp
  smb3: add dynamic tracepoints for shutdown ioctl
  cifs: Remove cifs_aio_ctx
  smb: client: handle lack of FSCTL_GET_REPARSE_POINT support
 2024-08-04 08:18:40 -07:00
Linus Torvalds
3c41df428e media fixes for v6.11-rc2 
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Merge tag 'media/v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media

Pull media fixes from Mauro Carvalho Chehab:

 - two Kconfig fixes

 - one fix for the UVC driver addressing probing time detection of a UVC
   custom controls

 - one fix related to PDF generation

* tag 'media/v6.11-2' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media:
  media: v4l: Fix missing tabular column hint for Y14P format
  media: intel/ipu6: select AUXILIARY_BUS in Kconfig
  media: ipu-bridge: fix ipu6 Kconfig dependencies
  media: uvcvideo: Fix custom control mapping probing
 2024-08-04 08:12:33 -07:00
Linus Torvalds
defaf1a211 SCSI fixes on 20240803 
One core change that reverts the double message print patch in sd.c
 (it was causing regressions on embedded systems).  The rest are driver
 fixes in ufs, mpt3sas and mpi3mr.
 
 Signed-off-by: James E.J. Bottomley <James.Bottomley@HansenPartnership.com>
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Merge tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi

Pull SCSI fixes from James Bottomley:
 "One core change that reverts the double message print patch in sd.c
  (it was causing regressions on embedded systems).

  The rest are driver fixes in ufs, mpt3sas and mpi3mr"

* tag 'scsi-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi:
  scsi: ufs: exynos: Don't resume FMP when crypto support is disabled
  scsi: mpt3sas: Avoid IOMMU page faults on REPORT ZONES
  scsi: mpi3mr: Avoid IOMMU page faults on REPORT ZONES
  scsi: ufs: core: Do not set link to OFF state while waking up from hibernation
  scsi: Revert "scsi: sd: Do not repeat the starting disk message"
  scsi: ufs: core: Fix deadlock during RTC update
  scsi: ufs: core: Bypass quick recovery if force reset is needed
  scsi: ufs: core: Check LSDBS cap when !mcq
 2024-08-03 15:12:56 -07:00
Linus Torvalds
d3426a6ed9 Bug fixes for 6.11-rc1: 
* Fix memory leak when corruption is detected during scrubbing parent
     pointers.
   * Allow SECURE namespace xattrs to use reserved block pool to in order to
     prevent ENOSPC.
   * Save stack space by passing tracepoint's char array to file_path() instead
     of another stack variable.
   * Remove unused parameter in macro XFS_DQUOT_LOGRES.
   * Replace comma with semicolon in a couple of places.
 
 Signed-off-by: Chandan Babu R <chandanbabu@kernel.org>
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Merge tag 'xfs-6.11-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux

Pull xfs fixes from Chandan Babu:

 - Fix memory leak when corruption is detected during scrubbing parent
   pointers

 - Allow SECURE namespace xattrs to use reserved block pool to in order
   to prevent ENOSPC

 - Save stack space by passing tracepoint's char array to file_path()
   instead of another stack variable

 - Remove unused parameter in macro XFS_DQUOT_LOGRES

 - Replace comma with semicolon in a couple of places

* tag 'xfs-6.11-fixes-1' of git://git.kernel.org/pub/scm/fs/xfs/xfs-linux:
  xfs: convert comma to semicolon
  xfs: convert comma to semicolon
  xfs: remove unused parameter in macro XFS_DQUOT_LOGRES
  xfs: fix file_path handling in tracepoints
  xfs: allow SECURE namespace xattrs to use reserved block pool
  xfs: fix a memory leak
 2024-08-03 09:09:25 -07:00
Linus Torvalds
1dd950f288 parisc architecture fixes for kernel v6.11-rc2: 
- fix unaligned memory accesses when calling BPF functions
 - adjust memory size constants to fix possible DMA corruptions
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Merge tag 'parisc-for-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc architecture fixes from Helge Deller:

 - fix unaligned memory accesses when calling BPF functions

 - adjust memory size constants to fix possible DMA corruptions

* tag 'parisc-for-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: fix a possible DMA corruption
  parisc: fix unaligned accesses in BPF
 2024-08-03 09:03:21 -07:00
Linus Torvalds
b6547e5486 runtime constants: deal with old decrepit linkers 
The runtime constants linker script depended on documented linker
behavior [1]:

 "If an output section’s name is the same as the input section’s name
  and is representable as a C identifier, then the linker will
  automatically PROVIDE two symbols: __start_SECNAME and __stop_SECNAME,
  where SECNAME is the name of the section. These indicate the start
  address and end address of the output section respectively"

to just automatically define the symbol names for the bounds of the
runtime constant arrays.

It turns out that this isn't actually something we can rely on, with old
linkers not generating these automatic symbols.  It looks to have been
introduced in binutils-2.29 back in 2017, and we still support building
with versions all the way back to binutils-2.25 (from 2015).

And yes, Oleg actually seems to be using such ancient versions of
binutils.

So instead of depending on the implicit symbols from "section names
match and are representable C identifiers", just do this all manually.
It's not like it causes us any extra pain, we already have to do that
for all the other sections that we use that often have special
characters in them.

Reported-and-tested-by: Oleg Nesterov <oleg@redhat.com>
Link: https://sourceware.org/binutils/docs/ld/Input-Section-Example.html [1]
Link: https://lore.kernel.org/all/20240802114518.GA20924@redhat.com/
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2024-08-03 08:38:45 -07:00
Hans Verkuil
e2ed53694e uvcvideo v6.11 regression fix 
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Merge tag 'tags/fixes-media-uvc-20230722' of git://git.kernel.org/pub/scm/linux/kernel/git/pinchartl/linux.git

uvcvideo v6.11 regression fix: fix custom control mapping probing

Signed-off-by: Hans Verkuil <hverkuil-cisco@xs4all.nl>
 2024-08-03 11:01:04 +02:00
Linus Torvalds
17712b7ea0 io_uring-6.11-20240802 
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Merge tag 'io_uring-6.11-20240802' of git://git.kernel.dk/linux

Pull io_uring fixes from Jens Axboe:
 "Two minor tweaks for the NAPI handling, both from Olivier:

   - Kill two unused list definitions

   - Ensure that multishot NAPI doesn't age away"

* tag 'io_uring-6.11-20240802' of git://git.kernel.dk/linux:
  io_uring: remove unused local list heads in NAPI functions
  io_uring: keep multishot request NAPI timeout current
 2024-08-02 14:18:31 -07:00
Linus Torvalds
d9ef02e56f Thermal control fixes for 6.11-rc2 
- Fix MSI error path cleanup in int340x, allow it to work with a subset
    of thermal MSI IRQs if some of them are not working and make it free
    all MSI IRQs on module exit (Srinivas Pandruvada).
 
  - Fix a thermal core issue that may lead to missing trip point crossing
    events in some cases when thermal_zone_set_trips() is used and update
    the thermal core documentation (Rafael Wysocki).
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Merge tag 'thermal-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control fixes from Rafael Wysocki:
 "These fix a few issues related to the MSI IRQs management in the
  int340x thermal driver, fix a thermal core issue that may lead to
  missing trip point crossing events and update the thermal core
  documentation.

  Specifics:

   - Fix MSI error path cleanup in int340x, allow it to work with a
     subset of thermal MSI IRQs if some of them are not working and make
     it free all MSI IRQs on module exit (Srinivas Pandruvada)

   - Fix a thermal core issue that may lead to missing trip point
     crossing events in some cases when thermal_zone_set_trips() is used
     and update the thermal core documentation (Rafael Wysocki)"

* tag 'thermal-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: core: Update thermal zone registration documentation
  thermal: trip: Avoid skipping trips in thermal_zone_set_trips()
  thermal: intel: int340x: Free MSI IRQ vectors on module exit
  thermal: intel: int340x: Allow limited thermal MSI support
  thermal: intel: int340x: Fix kernel warning during MSI cleanup
 2024-08-02 14:10:11 -07:00
Linus Torvalds
041b1061d8 arm64 fixes: 
- Expand the speculative SSBS errata workaround to more CPUs
 
 - Ensure jump label changes are visible to all CPUs with a
   kick_all_cpus_sync() (and also enable jump label batching as part of
   the fix)
 
 - The shadow call stack sanitiser is currently incompatible with Rust,
   make CONFIG_RUST conditional on !CONFIG_SHADOW_CALL_STACK
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Merge tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux

Pull arm64 fixes from Catalin Marinas:

 - Expand the speculative SSBS errata workaround to more CPUs

 - Ensure jump label changes are visible to all CPUs with a
   kick_all_cpus_sync() (and also enable jump label batching as part of
   the fix)

 - The shadow call stack sanitiser is currently incompatible with Rust,
   make CONFIG_RUST conditional on !CONFIG_SHADOW_CALL_STACK

* tag 'arm64-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux:
  arm64: jump_label: Ensure patched jump_labels are visible to all CPUs
  rust: SHADOW_CALL_STACK is incompatible with Rust
  arm64: errata: Expand speculative SSBS workaround (again)
  arm64: cputype: Add Cortex-A725 definitions
  arm64: cputype: Add Cortex-X1C definitions
 2024-08-02 13:46:43 -07:00
Linus Torvalds
1c4246294c A fix for a potential hang in the MDS when cap revocation races with 
the client releasing the caps in question, marked for stable.
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Merge tag 'ceph-for-6.11-rc2' of https://github.com/ceph/ceph-client

Pull ceph fix from Ilya Dryomov:
 "A fix for a potential hang in the MDS when cap revocation races with
  the client releasing the caps in question, marked for stable"

* tag 'ceph-for-6.11-rc2' of https://github.com/ceph/ceph-client:
  ceph: force sending a cap update msg back to MDS for revoke op
 2024-08-02 10:33:06 -07:00
Linus Torvalds
725d410fac * fix latent bug in how usage of large pages is determined for 
confidential VMs
 
 * fix "underline too short" in docs
 
 * eliminate log spam from limited APIC timer periods
 
 * disallow pre-faulting of memory before SEV-SNP VMs are initialized
 
 * delay clearing and encrypting private memory until it is added to
   guest page tables
 
 * this change also enables another small cleanup: the checks in
   SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
   can now be moved in the common kvm_gmem_populate() function
 
 * fix compilation error that the RISC-V merge introduced in selftests
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull kvm updates from Paolo Bonzini:
 "The bulk of the changes here is a largish change to guest_memfd,
  delaying the clearing and encryption of guest-private pages until they
  are actually added to guest page tables. This started as "let's make
  it impossible to misuse the API" for SEV-SNP; but then it ballooned a
  bit.

  The new logic is generally simpler and more ready for hugepage support
  in guest_memfd.

  Summary:

   - fix latent bug in how usage of large pages is determined for
     confidential VMs

   - fix "underline too short" in docs

   - eliminate log spam from limited APIC timer periods

   - disallow pre-faulting of memory before SEV-SNP VMs are initialized

   - delay clearing and encrypting private memory until it is added to
     guest page tables

   - this change also enables another small cleanup: the checks in
     SNP_LAUNCH_UPDATE that limit it to non-populated, private pages can
     now be moved in the common kvm_gmem_populate() function

   - fix compilation error that the RISC-V merge introduced in selftests"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm:
  KVM: x86/mmu: fix determination of max NPT mapping level for private pages
  KVM: riscv: selftests: Fix compile error
  KVM: guest_memfd: abstract how prepared folios are recorded
  KVM: guest_memfd: let kvm_gmem_populate() operate only on private gfns
  KVM: extend kvm_range_has_memory_attributes() to check subset of attributes
  KVM: cleanup and add shortcuts to kvm_range_has_memory_attributes()
  KVM: guest_memfd: move check for already-populated page to common code
  KVM: remove kvm_arch_gmem_prepare_needed()
  KVM: guest_memfd: make kvm_gmem_prepare_folio() operate on a single struct kvm
  KVM: guest_memfd: delay kvm_gmem_prepare_folio() until the memory is passed to the guest
  KVM: guest_memfd: return locked folio from __kvm_gmem_get_pfn
  KVM: rename CONFIG_HAVE_KVM_GMEM_* to CONFIG_HAVE_KVM_ARCH_GMEM_*
  KVM: guest_memfd: do not go through struct page
  KVM: guest_memfd: delay folio_mark_uptodate() until after successful preparation
  KVM: guest_memfd: return folio from __kvm_gmem_get_pfn()
  KVM: x86: disallow pre-fault for SNP VMs before initialization
  KVM: Documentation: Fix title underline too short warning
  KVM: x86: Eliminate log spam from limited APIC timer periods
 2024-08-02 10:17:49 -07:00
Paolo Bonzini
1773014a97 * fix latent bug in how usage of large pages is determined for 
confidential VMs
 
 * fix "underline too short" in docs
 
 * eliminate log spam from limited APIC timer periods
 
 * disallow pre-faulting of memory before SEV-SNP VMs are initialized
 
 * delay clearing and encrypting private memory until it is added to
   guest page tables
 
 * this change also enables another small cleanup: the checks in
   SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
   can now be moved in the common kvm_gmem_populate() function
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Merge branch 'kvm-fixes' into HEAD

* fix latent bug in how usage of large pages is determined for
  confidential VMs

* fix "underline too short" in docs

* eliminate log spam from limited APIC timer periods

* disallow pre-faulting of memory before SEV-SNP VMs are initialized

* delay clearing and encrypting private memory until it is added to
  guest page tables

* this change also enables another small cleanup: the checks in
  SNP_LAUNCH_UPDATE that limit it to non-populated, private pages
  can now be moved in the common kvm_gmem_populate() function
 2024-08-02 12:33:43 -04:00
Linus Torvalds
948752d2e0 RISC-V Fixes for 6.11-rc2 
* A fix to avoid dropping some of the internal pseudo-extensions, which
   breaks *envcfg dependency parsing.
 * The kernel entry address is now aligned in purgatory, which avoids a
   misaligned load that can lead to crash on systems that don't support
   misaligned accesses early in boot.
 * The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
   perf JSON configurations, one of them been updated to
   FW_SFENCE_VMA_ASID_SENT.
 * The starfive cache driver is now restricted to 64-bit systems, as it
   isn't 32-bit clean.
 * A fix for to avoid aliasing legacy-mode perf counters with software
   perf counters.
 * VM_FAULT_SIGSEGV is now handled in the page fault code.
 * A fix for stalls during CPU hotplug due to IPIs being disabled.
 * A fix for memblock bounds checking.  This manifests as a crash on
   systems with discontinuous memory maps that have regions that don't
   fit in the linear map.
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Merge tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V fixes from Palmer Dabbelt:

 - A fix to avoid dropping some of the internal pseudo-extensions, which
   breaks *envcfg dependency parsing

 - The kernel entry address is now aligned in purgatory, which avoids a
   misaligned load that can lead to crash on systems that don't support
   misaligned accesses early in boot

 - The FW_SFENCE_VMA_RECEIVED perf event was duplicated in a handful of
   perf JSON configurations, one of them been updated to
   FW_SFENCE_VMA_ASID_SENT

 - The starfive cache driver is now restricted to 64-bit systems, as it
   isn't 32-bit clean

 - A fix for to avoid aliasing legacy-mode perf counters with software
   perf counters

 - VM_FAULT_SIGSEGV is now handled in the page fault code

 - A fix for stalls during CPU hotplug due to IPIs being disabled

 - A fix for memblock bounds checking. This manifests as a crash on
   systems with discontinuous memory maps that have regions that don't
   fit in the linear map

* tag 'riscv-for-linus-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux:
  riscv: Fix linear mapping checks for non-contiguous memory regions
  RISC-V: Enable the IPI before workqueue_online_cpu()
  riscv/mm: Add handling for VM_FAULT_SIGSEGV in mm_fault_error()
  perf: riscv: Fix selecting counters in legacy mode
  cache: StarFive: Require a 64-bit system
  perf arch events: Fix duplicate RISC-V SBI firmware event name
  riscv/purgatory: align riscv_kernel_entry
  riscv: cpufeature: Do not drop Linux-internal extensions
 2024-08-02 09:33:35 -07:00
Paolo Bonzini
29b5bbf7e9 KVM/riscv fixes for 6.11, take #1 
- Fix compile error in get-reg-list selftests
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Merge tag 'kvm-riscv-fixes-6.11-1' of https://github.com/kvm-riscv/linux into HEAD

KVM/riscv fixes for 6.11, take #1

- Fix compile error in get-reg-list selftests
 2024-08-02 12:31:29 -04:00
Linus Torvalds
66242ef25e s390 updates for 6.11-rc2 
- Remove unused empty CPU alternatives header file
 
 - Fix recently and erroneously removed exception handling when loading
   an invalid floating point register
 
 - Couple of ptdump fixes to reflect the recent changes due to the
   uncoupling of physical vs virtual kernel address spaces
 
 - Couple of changes to avoid the unnecessary splitting of large pages
   in kernel mappings
 
 - Add the missing MODULE_DESCRIPTION for the CIO modules
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Merge tag 's390-6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull s390 fixes from Vasily Gorbik:

 - remove unused empty CPU alternatives header file

 - fix recently and erroneously removed exception handling when loading
   an invalid floating point register

 - ptdump fixes to reflect the recent changes due to the uncoupling of
   physical vs virtual kernel address spaces

 - changes to avoid the unnecessary splitting of large pages in kernel
   mappings

 - add the missing MODULE_DESCRIPTION for the CIO modules

* tag 's390-6.11-3' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390: Keep inittext section writable
  s390/vmlinux.lds.S: Move ro_after_init section behind rodata section
  s390/mm: Get rid of RELOC_HIDE()
  s390/mm/ptdump: Improve sorting of markers
  s390/mm/ptdump: Add support for relocated lowcore mapping
  s390/mm/ptdump: Fix handling of identity mapping area
  s390/cio: Add missing MODULE_DESCRIPTION() macros
  s390/alternatives: Remove unused empty header file
  s390/fpu: Re-add exception handling in load_fpu_state()
 2024-08-02 09:29:54 -07:00
Paul E. McKenney
f2655ac2c0 clocksource: Fix brown-bag boolean thinko in cs_watchdog_read() 
The current "nretries > 1 || nretries >= max_retries" check in
cs_watchdog_read() will always evaluate to true, and thus pr_warn(), if
nretries is greater than 1.  The intent is instead to never warn on the
first try, but otherwise warn if the successful retry was the last retry.

Therefore, change that "||" to "&&".

Fixes: db3a34e174 ("clocksource: Retry clock read if long delays detected")
Reported-by: Borislav Petkov <bp@alien8.de>
Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: stable@vger.kernel.org
Link: https://lore.kernel.org/all/20240802154618.4149953-2-paulmck@kernel.org
 2024-08-02 18:29:28 +02:00
Linus Torvalds
29ccb40f2b asm-generic: fixes for 6.11 
These are three important bug fixes for the cross-architecture tree,
 fixing a regression with the new syscall.tbl file, the inconsistent
 numbering for the new uretprobe syscall and a bug with iowrite64be
 on alpha.
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Merge tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic

Pull asm-generic fixes from Arnd Bergmann:
 "These are three important bug fixes for the cross-architecture tree,
  fixing a regression with the new syscall.tbl file, the inconsistent
  numbering for the new uretprobe syscall and a bug with iowrite64be on
  alpha"

* tag 'asm-generic-fixes-6.11-1' of git://git.kernel.org/pub/scm/linux/kernel/git/arnd/asm-generic:
  syscalls: fix syscall macros for newfstat/newfstatat
  uretprobe: change syscall number, again
  alpha: fix ioread64be()/iowrite64be() helpers
 2024-08-02 09:14:48 -07:00
Linus Torvalds
6b779f8a86 sound fixes for 6.11-rc2 
A small collection of fixes:
 - Revert of FireWire changes that caused a long-time regression
 - Another long-time regression fix for AMD HDMI
 - MIDI2 UMP fixes
 - HD-audio Conexant codec fixes and a qurik
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Merge tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound

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

   - Revert of FireWire changes that caused a long-time regression

   - Another long-time regression fix for AMD HDMI

   - MIDI2 UMP fixes

   - HD-audio Conexant codec fixes and a quirk"

* tag 'sound-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound:
  ALSA: hda: Conditionally use snooping for AMD HDMI
  ALSA: usb-audio: Correct surround channels in UAC1 channel map
  ALSA: seq: ump: Explicitly reset RPN with Null RPN
  ALSA: seq: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
  ALSA: seq: ump: Use the common RPN/bank conversion context
  ALSA: ump: Explicitly reset RPN with Null RPN
  ALSA: ump: Transmit RPN/NRPN message at each MSB/LSB data reception
  Revert "ALSA: firewire-lib: operate for period elapse event in process context"
  Revert "ALSA: firewire-lib: obsolete workqueue for period update"
  ALSA: hda/realtek: Add quirk for Acer Aspire E5-574G
  ALSA: seq: ump: Optimize conversions from SysEx to UMP
  ALSA: hda/conexant: Mute speakers at suspend / shutdown
  ALSA: hda/generic: Add a helper to mute speakers at suspend/shutdown
  ALSA: hda: conexant: Fix headset auto detect fail in the polling mode
 2024-08-02 09:04:57 -07:00
Linus Torvalds
29b4a6996c drm fixes for 6.11-rc2 
client:
 - fix error code
 
 atomic:
 - allow damage clips with async flips
 - allow explicit sync with async flips
 
 kselftests:
 - fix dmabuf-heaps test
 
 panic:
 - fix schedule_work in panic paths
 
 panel:
 - fix OrangePi Neo orientation
 
 gpuvm:
 - fix missing dependency
 
 amdgpu:
 - SMU 14.x update
 - Fix contiguous VRAM handling for IB parsing
 - GFX 12 fix
 - Regression fix for old APUs
 
 i915:
 - Static analysis fix for int overflow
 - Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12
 
 nouveau:
 - revert busy wait change that caused a resume regression
 - fix buffer placement fault on dynamic pm s/r
 - fix refcount underflow
 
 ast:
 - fix black screen on resume
 - wake during connector status detect
 
 v3d:
 - fix issues with perf/timestamp ioctls
 
 vmwgfx:
 - fix deadlock in dma-buf fence polling
 - fix screen surface refcounting
 - fix dumb buffer handling
 - fix support for external buffers
 - fix overlay with screen targets
 - trigger modeset on screen moves
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Merge tag 'drm-fixes-2024-08-02' of https://gitlab.freedesktop.org/drm/kernel

Pull drm fixes from Dave Airlie:
 "Regular weekly fixes. This is a bit larger than usual but doesn't seem
  too crazy.

  Most of it is vmwgfx changes that fix a bunch of issues with wayland
  userspaces with dma-buf/external buffers and modesetting fixes.

  Otherwise it's kinda spread out, v3d fixes some new ioctls, nouveau
  has regression revert and fixes, amdgpu, i915 and ast have some small
  fixes, and some core fixes spread about.

  client:
   - fix error code

  atomic:
   - allow damage clips with async flips
   - allow explicit sync with async flips

  kselftests:
   - fix dmabuf-heaps test

  panic:
   - fix schedule_work in panic paths

  panel:
   - fix OrangePi Neo orientation

  gpuvm:
   - fix missing dependency

  amdgpu:
   - SMU 14.x update
   - Fix contiguous VRAM handling for IB parsing
   - GFX 12 fix
   - Regression fix for old APUs

  i915:
   - Static analysis fix for int overflow
   - Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12

  nouveau:
   - revert busy wait change that caused a resume regression
   - fix buffer placement fault on dynamic pm s/r
   - fix refcount underflow

  ast:
   - fix black screen on resume
   - wake during connector status detect

  v3d:
   - fix issues with perf/timestamp ioctls

  vmwgfx:
   - fix deadlock in dma-buf fence polling
   - fix screen surface refcounting
   - fix dumb buffer handling
   - fix support for external buffers
   - fix overlay with screen targets
   - trigger modeset on screen moves"

* tag 'drm-fixes-2024-08-02' of https://gitlab.freedesktop.org/drm/kernel: (31 commits)
  Revert "nouveau: rip out busy fence waits"
  nouveau: set placement to original placement on uvmm validate.
  drm/atomic: Allow userspace to use damage clips with async flips
  drm/atomic: Allow userspace to use explicit sync with atomic async flips
  drm/i915: Fix possible int overflow in skl_ddi_calculate_wrpll()
  drm/i915/hdcp: Fix HDCP2_STREAM_STATUS macro
  drm/ast: astdp: Wake up during connector status detection
  i915/perf: Remove code to update PWR_CLK_STATE for gen12
  kselftests: dmabuf-heaps: Ensure the driver name is null-terminated
  drm/client: Fix error code in drm_client_buffer_vmap_local()
  drm/amdgpu: Fix APU handling in amdgpu_pm_load_smu_firmware()
  drm/amdgpu: increase mes log buffer size for gfx12
  drm/amdgpu: fix contiguous handling for IB parsing v2
  drm/amdgpu/pm: support gpu_metrics sysfs interface for smu v14.0.2/3
  drm/vmwgfx: Trigger a modeset when the screen moves
  drm/vmwgfx: Fix overlay when using Screen Targets
  drm/vmwgfx: Add basic support for external buffers
  drm/vmwgfx: Fix handling of dumb buffers
  drm/vmwgfx: Make sure the screen surface is ref counted
  drm/vmwgfx: Fix a deadlock in dma buf fence polling
  ...
 2024-08-02 08:59:09 -07:00
Steve French
a91bfa6760 cifs: update internal version number 
To 2.50

Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-08-02 10:56:14 -05:00
Paulo Alcantara
ddecea00f8 smb: client: fix FSCTL_GET_REPARSE_POINT against NetApp 
NetApp server requires the file to be open with FILE_READ_EA access in
order to support FSCTL_GET_REPARSE_POINT, otherwise it will return
STATUS_INVALID_DEVICE_REQUEST.  It doesn't make any sense because
there's no requirement for FILE_READ_EA bit to be set nor
STATUS_INVALID_DEVICE_REQUEST being used for something other than
"unsupported reparse points" in MS-FSA.

To fix it and improve compatibility, set FILE_READ_EA & SYNCHRONIZE
bits to match what Windows client currently does.

Tested-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@lrz.de>
Acked-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-08-02 10:56:02 -05:00
Steve French
69ca1f5755 smb3: add dynamic tracepoints for shutdown ioctl 
For debugging an umount failure in xfstests generic/043 generic/044 in some
configurations, we needed more information on the shutdown ioctl which
was suspected of being related to the cause, so tracepoints are added
in this patch e.g.

  "trace-cmd record -e smb3_shutdown_enter -e smb3_shutdown_done -e smb3_shutdown_err"

Sample output:
  godown-47084   [011] .....  3313.756965: smb3_shutdown_enter: flags=0x1 tid=0x733b3e75
  godown-47084   [011] .....  3313.756968: smb3_shutdown_done: flags=0x1 tid=0x733b3e75

Tested-by: Anthony Nandaa (Microsoft) <profnandaa@gmail.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-08-02 10:55:49 -05:00
David Howells
cd93650798 cifs: Remove cifs_aio_ctx 
Remove struct cifs_aio_ctx and its associated alloc/release functions as it
is no longer used, the functions being taken over by netfslib.

Signed-off-by: David Howells <dhowells@redhat.com>
cc: Steve French <sfrench@samba.org>
cc: linux-cifs@vger.kernel.org
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-08-02 10:55:45 -05:00
Paulo Alcantara
4b96024ef2 smb: client: handle lack of FSCTL_GET_REPARSE_POINT support 
As per MS-FSA 2.1.5.10.14, support for FSCTL_GET_REPARSE_POINT is
optional and if the server doesn't support it,
STATUS_INVALID_DEVICE_REQUEST must be returned for the operation.

If we find files with reparse points and we can't read them due to
lack of client or server support, just ignore it and then treat them
as regular files or junctions.

Fixes: 5f71ebc412 ("smb: client: parse reparse point flag in create response")
Reported-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@lrz.de>
Tested-by: Sebastian Steinbeisser <Sebastian.Steinbeisser@lrz.de>
Acked-by: Tom Talpey <tom@talpey.com>
Signed-off-by: Paulo Alcantara (Red Hat) <pc@manguebit.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
 2024-08-02 10:55:22 -05:00
Linus Torvalds
454e2370b9 ata fixes for 6.11-rc2 
- Add missing power-domains property to the device tree bindings for
    the Rockchip Designware AHCI adapter (from Heiko).
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Merge tag 'ata-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux

Pull ata fix from Damien Le Moal:

 - Add missing power-domains property to the device tree bindings for
   the Rockchip Designware AHCI adapter (from Heiko)

* tag 'ata-6.11-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/libata/linux:
  dt-bindings: ata: rockchip-dwc-ahci: add missing power-domains
 2024-08-02 08:54:16 -07:00
Linus Torvalds
bbea34e693 do_dup2() out-of-bounds array speculation fix 
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Merge tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs

Pull vfs fix from Al Viro:
 "do_dup2() out-of-bounds array speculation fix"

* tag 'pull-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs:
  protect the fetch of ->fd[fd] in do_dup2() from mispredictions
 2024-08-02 08:52:27 -07:00
Will Deacon
cfb00a3578 arm64: jump_label: Ensure patched jump_labels are visible to all CPUs 
Although the Arm architecture permits concurrent modification and
execution of NOP and branch instructions, it still requires some
synchronisation to ensure that other CPUs consistently execute the newly
written instruction:

 >  When the modified instructions are observable, each PE that is
 >  executing the modified instructions must execute an ISB or perform a
 >  context synchronizing event to ensure execution of the modified
 >  instructions

Prior to commit f6cc0c5016 ("arm64: Avoid calling stop_machine() when
patching jump labels"), the arm64 jump_label patching machinery
performed synchronisation using stop_machine() after each modification,
however this was problematic when flipping static keys from atomic
contexts (namely, the arm_arch_timer CPU hotplug startup notifier) and
so we switched to the _nosync() patching routines to avoid "scheduling
while atomic" BUG()s during boot.

In hindsight, the analysis of the issue in f6cc0c5016 isn't quite
right: it cites the use of IPIs in the default patching routines as the
cause of the lockup, whereas stop_machine() does not rely on IPIs and
the I-cache invalidation is performed using __flush_icache_range(),
which elides the call to kick_all_cpus_sync(). In fact, the blocking
wait for other CPUs is what triggers the BUG() and the problem remains
even after f6cc0c5016, for example because we could block on the
jump_label_mutex. Eventually, the arm_arch_timer driver was fixed to
avoid the static key entirely in commit a862fc2254
("clocksource/arm_arch_timer: Remove use of workaround static key").

This all leaves the jump_label patching code in a funny situation on
arm64 as we do not synchronise with other CPUs to reduce the likelihood
of a bug which no longer exists. Consequently, toggling a static key on
one CPU cannot be assumed to take effect on other CPUs, leading to
potential issues, for example with missing preempt notifiers.

Rather than revert f6cc0c5016 and go back to stop_machine() for each
patch site, implement arch_jump_label_transform_apply() and kick all
the other CPUs with an IPI at the end of patching.

Cc: Alexander Potapenko <glider@google.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Marc Zyngier <maz@kernel.org>
Fixes: f6cc0c5016 ("arm64: Avoid calling stop_machine() when patching jump labels")
Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Reviewed-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240731133601.3073-1-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
 2024-08-02 15:07:01 +01:00
Arnd Bergmann
343416f0c1 syscalls: fix syscall macros for newfstat/newfstatat 
The __NR_newfstat and __NR_newfstatat macros accidentally got renamed
in the conversion to the syscall.tbl format, dropping the 'new' portion
of the name.

In an unrelated change, the two syscalls are no longer architecture
specific but are once more defined on all 64-bit architectures, so the
'newstat' ABI keyword can be dropped from the table as a simplification.

Fixes: Fixes: 4fe53bf2ba ("syscalls: add generic scripts/syscall.tbl")
Closes: https://lore.kernel.org/lkml/838053e0-b186-4e9f-9668-9a3384a71f23@app.fastmail.com/T/#t
Reported-by: Florian Weimer <fweimer@redhat.com>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2024-08-02 15:20:47 +02:00
Arnd Bergmann
54233a4254 uretprobe: change syscall number, again 
Despite multiple attempts to get the syscall number assignment right
for the newly added uretprobe syscall, we ended up with a bit of a mess:

 - The number is defined as 467 based on the assumption that the
   xattrat family of syscalls would use 463 through 466, but those
   did not make it into 6.11.

 - The include/uapi/asm-generic/unistd.h file still lists the number
   463, but the new scripts/syscall.tbl that was supposed to have the
   same data lists 467 instead as the number for arc, arm64, csky,
   hexagon, loongarch, nios2, openrisc and riscv. None of these
   architectures actually provide a uretprobe syscall.

 - All the other architectures (powerpc, arm, mips, ...) don't list
   this syscall at all.

There are two ways to make it consistent again: either list it with
the same syscall number on all architectures, or only list it on x86
but not in scripts/syscall.tbl and asm-generic/unistd.h.

Based on the most recent discussion, it seems like we won't need it
anywhere else, so just remove the inconsistent assignment and instead
move the x86 number to the next available one in the architecture
specific range, which is 335.

Fixes: 5c28424e9a ("syscalls: Fix to add sys_uretprobe to syscall.tbl")
Fixes: 190fec72df ("uprobe: Wire up uretprobe system call")
Fixes: 63ded11097 ("uprobe: Change uretprobe syscall scope and number")
Acked-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Reviewed-by: Jiri Olsa <jolsa@kernel.org>
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
 2024-08-02 15:18:49 +02:00
Rafael J. Wysocki
a090742289 thermal: core: Update thermal zone registration documentation 
The thermal sysfs API document is outdated.  One of the problems with
it is that is still documents thermal_zone_device_register() which
does not exit any more and it does not reflect the current thermal
zone operations definition.

Replace the thermal_zone_device_register() description in it with
a thermal_zone_device_register_with_trips() description, including
an update of the thermal zone operations list.

Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Reviewed-by: Lukasz Luba <lukasz.luba@arm.com>
Link: https://patch.msgid.link/2767845.mvXUDI8C0e@rjwysocki.net
 2024-08-02 13:22:37 +02:00
Dave Airlie
27ce65f652 Revert "nouveau: rip out busy fence waits" 
This reverts commit d45bb9c5f7.

Just got a report that this causes some suspend/resume issues,
so back it out and I'll investigate it later.

Reported-by: Mike Galbraith <efault@gmx.de>
Signed-off-by: Dave Airlie <airlied@redhat.com>
 2024-08-02 14:38:28 +10:00
Dave Airlie
4eb399741f A couple drm_panic fixes, several v3d fixes to increase the new timestamp API 
safety, several fixes for vmwgfx for various modesetting issues, PM fixes
 for ast, async flips improvements and two fixes for nouveau to fix
 resource refcounting and buffer placement.
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Merge tag 'drm-misc-fixes-2024-08-01' of https://gitlab.freedesktop.org/drm/misc/kernel into drm-fixes

A couple drm_panic fixes, several v3d fixes to increase the new timestamp API
safety, several fixes for vmwgfx for various modesetting issues, PM fixes
for ast, async flips improvements and two fixes for nouveau to fix
resource refcounting and buffer placement.

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

From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240801-interesting-antique-bat-2fe4c0@houat
 2024-08-02 12:14:47 +10:00
Dave Airlie
7b9b765168 Merge tag 'drm-intel-fixes-2024-08-01' of https://gitlab.freedesktop.org/drm/i915/kernel into drm-fixes 
- Static analysis fix for int overflow
- Fix for HDCP2_STREAM_STATUS macro and removal of PWR_CLK_STATE for gen12

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Joonas Lahtinen <joonas.lahtinen@linux.intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/ZqslBkcZlInYdYgm@jlahtine-mobl.ger.corp.intel.com
 2024-08-02 11:19:15 +10:00
Dave Airlie
774c6f2710 amd-drm-fixes-6.11-2024-07-27: 
amdgpu:
 - SMU 14.x update
 - Fix contiguous VRAM handling for IB parsing
 - GFX 12 fix
 - Regression fix for old APUs
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Merge tag 'amd-drm-fixes-6.11-2024-07-27' of https://gitlab.freedesktop.org/agd5f/linux into drm-fixes

amd-drm-fixes-6.11-2024-07-27:

amdgpu:
- SMU 14.x update
- Fix contiguous VRAM handling for IB parsing
- GFX 12 fix
- Regression fix for old APUs

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

From: Alex Deucher <alexander.deucher@amd.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20240728025407.2115881-1-alexander.deucher@amd.com
 2024-08-02 08:21:57 +10:00
Al Viro
8aa37bde1a protect the fetch of ->fd[fd] in do_dup2() from mispredictions 
both callers have verified that fd is not greater than ->max_fds;
however, misprediction might end up with
        tofree = fdt->fd[fd];
being speculatively executed.  That's wrong for the same reasons
why it's wrong in close_fd()/file_close_fd_locked(); the same
solution applies - array_index_nospec(fd, fdt->max_fds) could differ
from fd only in case of speculative execution on mispredicted path.

Cc: stable@vger.kernel.org
Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
 2024-08-01 15:51:57 -04:00
David Gow
dd35a09332 x86/uaccess: Zero the 8-byte get_range case on failure on 32-bit 
While zeroing the upper 32 bits of an 8-byte getuser on 32-bit x86 was
fixed by commit 8c860ed825 ("x86/uaccess: Fix missed zeroing of ia32 u64
get_user() range checking") it was broken again in commit 8a2462df15
("x86/uaccess: Improve the 8-byte getuser() case").

This is because the register which holds the upper 32 bits (%ecx) is being
cleared _after_ the check_range, so if the range check fails, %ecx is never
cleared.

This can be reproduced with:
./tools/testing/kunit/kunit.py run --arch i386 usercopy

Instead, clear %ecx _before_ check_range in the 8-byte case. This
reintroduces a bit of the ugliness we were trying to avoid by adding
another #ifndef CONFIG_X86_64, but at least keeps check_range from needing
a separate bad_get_user_8 jump.

Fixes: 8a2462df15 ("x86/uaccess: Improve the 8-byte getuser() case")
Signed-off-by: David Gow <davidgow@google.com>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: Linus Torvalds <torvalds@linux-foundation.org>
Link: https://lore.kernel.org/all/20240731073031.4045579-1-davidgow@google.com
 2024-08-01 21:19:10 +02:00
Stuart Menefy
3b6564427a
riscv: Fix linear mapping checks for non-contiguous memory regions 
The RISC-V kernel already has checks to ensure that memory which would
lie outside of the linear mapping is not used. However those checks
use memory_limit, which is used to implement the mem= kernel command
line option (to limit the total amount of memory, not its address
range). When memory is made up of two or more non-contiguous memory
banks this check is incorrect.

Two changes are made here:
 - add a call in setup_bootmem() to memblock_cap_memory_range() which
   will cause any memory which falls outside the linear mapping to be
   removed from the memory regions.
 - remove the check in create_linear_mapping_page_table() which was
   intended to remove memory which is outside the liner mapping based
   on memory_limit, as it is no longer needed. Note a check for
   mapping more memory than memory_limit (to implement mem=) is
   unnecessary because of the existing call to
   memblock_enforce_memory_limit().

This issue was seen when booting on a SV39 platform with two memory
banks:
  0x00,80000000 1GiB
  0x20,00000000 32GiB
This memory range is 158GiB from top to bottom, but the linear mapping
is limited to 128GiB, so the lower block of RAM will be mapped at
PAGE_OFFSET, and the upper block straddles the top of the linear
mapping.

This causes the following Oops:
[    0.000000] Linux version 6.10.0-rc2-gd3b8dd5b51dd-dirty (stuart.menefy@codasip.com) (riscv64-codasip-linux-gcc (GCC) 13.2.0, GNU ld (GNU Binutils) 2.41.0.20231213) #20 SMP Sat Jun 22 11:34:22 BST 2024
[    0.000000] memblock_add: [0x0000000080000000-0x00000000bfffffff] early_init_dt_add_memory_arch+0x4a/0x52
[    0.000000] memblock_add: [0x0000002000000000-0x00000027ffffffff] early_init_dt_add_memory_arch+0x4a/0x52
...
[    0.000000] memblock_alloc_try_nid: 23724 bytes align=0x8 nid=-1 from=0x0000000000000000 max_addr=0x0000000000000000 early_init_dt_alloc_memory_arch+0x1e/0x48
[    0.000000] memblock_reserve: [0x00000027ffff5350-0x00000027ffffaffb] memblock_alloc_range_nid+0xb8/0x132
[    0.000000] Unable to handle kernel paging request at virtual address fffffffe7fff5350
[    0.000000] Oops [#1]
[    0.000000] Modules linked in:
[    0.000000] CPU: 0 PID: 0 Comm: swapper Not tainted 6.10.0-rc2-gd3b8dd5b51dd-dirty #20
[    0.000000] Hardware name: codasip,a70x (DT)
[    0.000000] epc : __memset+0x8c/0x104
[    0.000000]  ra : memblock_alloc_try_nid+0x74/0x84
[    0.000000] epc : ffffffff805e88c8 ra : ffffffff806148f6 sp : ffffffff80e03d50
[    0.000000]  gp : ffffffff80ec4158 tp : ffffffff80e0bec0 t0 : fffffffe7fff52f8
[    0.000000]  t1 : 00000027ffffb000 t2 : 5f6b636f6c626d65 s0 : ffffffff80e03d90
[    0.000000]  s1 : 0000000000005cac a0 : fffffffe7fff5350 a1 : 0000000000000000
[    0.000000]  a2 : 0000000000005cac a3 : fffffffe7fffaff8 a4 : 000000000000002c
[    0.000000]  a5 : ffffffff805e88c8 a6 : 0000000000005cac a7 : 0000000000000030
[    0.000000]  s2 : fffffffe7fff5350 s3 : ffffffffffffffff s4 : 0000000000000000
[    0.000000]  s5 : ffffffff8062347e s6 : 0000000000000000 s7 : 0000000000000001
[    0.000000]  s8 : 0000000000002000 s9 : 00000000800226d0 s10: 0000000000000000
[    0.000000]  s11: 0000000000000000 t3 : ffffffff8080a928 t4 : ffffffff8080a928
[    0.000000]  t5 : ffffffff8080a928 t6 : ffffffff8080a940
[    0.000000] status: 0000000200000100 badaddr: fffffffe7fff5350 cause: 000000000000000f
[    0.000000] [<ffffffff805e88c8>] __memset+0x8c/0x104
[    0.000000] [<ffffffff8062349c>] early_init_dt_alloc_memory_arch+0x1e/0x48
[    0.000000] [<ffffffff8043e892>] __unflatten_device_tree+0x52/0x114
[    0.000000] [<ffffffff8062441e>] unflatten_device_tree+0x9e/0xb8
[    0.000000] [<ffffffff806046fe>] setup_arch+0xd4/0x5bc
[    0.000000] [<ffffffff806007aa>] start_kernel+0x76/0x81a
[    0.000000] Code: b823 02b2 bc23 02b2 b023 04b2 b423 04b2 b823 04b2 (bc23) 04b2
[    0.000000] ---[ end trace 0000000000000000 ]---
[    0.000000] Kernel panic - not syncing: Attempted to kill the idle task!
[    0.000000] ---[ end Kernel panic - not syncing: Attempted to kill the idle task! ]---

The problem is that memblock (unaware that some physical memory cannot
be used) has allocated memory from the top of memory but which is
outside the linear mapping region.

Signed-off-by: Stuart Menefy <stuart.menefy@codasip.com>
Fixes: c99127c452 ("riscv: Make sure the linear mapping does not use the kernel mapping")
Reviewed-by: David McKay <david.mckay@codasip.com>
Reviewed-by: Alexandre Ghiti <alexghiti@rivosinc.com>
Link: https://lore.kernel.org/r/20240622114217.2158495-1-stuart.menefy@codasip.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
 2024-08-01 11:46:09 -07:00
Linus Torvalds
c0ecd63883 pci-v6.11-fixes-1 
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Merge tag 'pci-v6.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull PCI fixes from Bjorn Helgaas:

 - Fix a pci_intx() regression that caused driver reload to fail with
   "Resources present before probing" (Philipp Stanner)

 - Fix a pciehp regression that clobbered the upper bits of RAID status
   LEDs on NVMe devices behind an Intel VMD (Blazej Kucman)

* tag 'pci-v6.11-fixes-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci:
  PCI: pciehp: Retain Power Indicator bits for userspace indicators
  PCI: Fix devres regression in pci_intx()
 2024-08-01 11:30:15 -07:00