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Linus Torvalds
eb6a9339ef Mainly singleton patches, documented in their respective changelogs. 
Notable series include:
 
 - Some maintenance and performance work for ocfs2 in Heming Zhao's
   series "improve write IO performance when fragmentation is high".
 
 - Some ocfs2 bugfixes from Su Yue in the series "ocfs2 bugs fixes
   exposed by fstests".
 
 - kfifo header rework from Andy Shevchenko in the series "kfifo: Clean
   up kfifo.h".
 
 - GDB script fixes from Florian Rommel in the series "scripts/gdb: Fixes
   for $lx_current and $lx_per_cpu".
 
 - After much discussion, a coding-style update from Barry Song
   explaining one reason why inline functions are preferred over macros.
   The series is "codingstyle: avoid unused parameters for a function-like
   macro".
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Merge tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-mm updates from Andrew Morton:
 "Mainly singleton patches, documented in their respective changelogs.
  Notable series include:

   - Some maintenance and performance work for ocfs2 in Heming Zhao's
     series "improve write IO performance when fragmentation is high".

   - Some ocfs2 bugfixes from Su Yue in the series "ocfs2 bugs fixes
     exposed by fstests".

   - kfifo header rework from Andy Shevchenko in the series "kfifo:
     Clean up kfifo.h".

   - GDB script fixes from Florian Rommel in the series "scripts/gdb:
     Fixes for $lx_current and $lx_per_cpu".

   - After much discussion, a coding-style update from Barry Song
     explaining one reason why inline functions are preferred over
     macros. The series is "codingstyle: avoid unused parameters for a
     function-like macro""

* tag 'mm-nonmm-stable-2024-05-19-11-56' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (62 commits)
  fs/proc: fix softlockup in __read_vmcore
  nilfs2: convert BUG_ON() in nilfs_finish_roll_forward() to WARN_ON()
  scripts: checkpatch: check unused parameters for function-like macro
  Documentation: coding-style: ask function-like macros to evaluate parameters
  nilfs2: use __field_struct() for a bitwise field
  selftests/kcmp: remove unused open mode
  nilfs2: remove calls to folio_set_error() and folio_clear_error()
  kernel/watchdog_perf.c: tidy up kerneldoc
  watchdog: allow nmi watchdog to use raw perf event
  watchdog: handle comma separated nmi_watchdog command line
  nilfs2: make superblock data array index computation sparse friendly
  squashfs: remove calls to set the folio error flag
  squashfs: convert squashfs_symlink_read_folio to use folio APIs
  scripts/gdb: fix detection of current CPU in KGDB
  scripts/gdb: make get_thread_info accept pointers
  scripts/gdb: fix parameter handling in $lx_per_cpu
  scripts/gdb: fix failing KGDB detection during probe
  kfifo: don't use "proxy" headers
  media: stih-cec: add missing io.h
  media: rc: add missing io.h
  ...
 2024-05-19 14:02:03 -07:00
Linus Torvalds
16dbfae867 bcachefs changes for 6.10-rc1 
- More safety fixes, primarily found by syzbot
 
 - Run the upgrade/downgrade paths in nochnages mode. Nochanges mode is
   primarily for testing fsck/recovery in dry run mode, so it shouldn't
   change anything besides disabling writes and holding dirty metadata in
   memory.
 
   The idea here was to reduce the amount of activity if we can't write
   anything out, so that bringing up a filesystem in "super ro" mode
   would be more lilkely to work for data recovery - but norecovery is
   the correct option for this.
 
 - btree_trans->locked; we now track whether a btree_trans has any btree
   nodes locked, and this is used for improved assertions related to
   trans_unlock() and trans_relock(). We'll also be using it for
   improving how we work with lockdep in the future: we don't want
   lockdep to be tracking individual btree node locks because we take too
   many for lockdep to track, and it's not necessary since we have a
   cycle detector.
 
 - Trigger improvements that are prep work for online fsck
 
 - BTREE_TRIGGER_check_repair; this regularizes how we do some repair
   work for extents that goes with running triggers in fsck, and fixes
   some subtle issues with transaction restarts there.
 
 - bch2_snapshot_equiv() has now been ripped out of fsck.c; snapshot
   equivalence classes are for when snapshot deletion leaves behind
   redundant snapshot nodes, but snapshot deletion now cleans this up
   right away, so the abstraction doesn't need to leak.
 
 - Improvements to how we resume writing to the journal in recovery. The
   code for picking the new place to write when reading the journal is
   greatly simplified and we also store the position in the superblock
   for when we don't read the journal; this means that we preserve more
   of the journal for list_journal debugging.
 
 - Improvements to sysfs btree_cache and btree_node_cache, for debugging
   memory reclaim.
 
 - We now detect when we've blocked for 10 seconds on the allocator in
   the write path and dump some useful info.
 
 - Safety fixes for devices references: this is a big series that changes
   almost all device lookups to properly check if the device exists and
   take a reference to it.
 
   Previously we assumed that if a bkey exists that references a device
   then the device must exist, and this was enforced in .invalid methods,
   but this was incorrect because it meant device removal relied on
   accounting being correct to not leave keys pointing to invalid
   devices, and that's not something we can assume.
 
   Getting the "pointer to invalid device" checks out of our .invalid()
   methods fixes some long standing device removal bugs; the only
   outstanding bug with device removal now is a race between the discard
   path and deleting alloc info, which should be easily fixed.
 
 - The allocator now prefers not to expand the new
   member_info.btree_allocated bitmap, meaning if repair ever requires
   scanning for btree nodes (because of a corrupt interior nodes) we
   won't have to scan the whole device(s).
 
 - New coding style document, which among other things talks about the
   correct usage of assertions
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Merge tag 'bcachefs-2024-05-19' of https://evilpiepirate.org/git/bcachefs

Pull bcachefs updates from Kent Overstreet:

 - More safety fixes, primarily found by syzbot

 - Run the upgrade/downgrade paths in nochnages mode. Nochanges mode is
   primarily for testing fsck/recovery in dry run mode, so it shouldn't
   change anything besides disabling writes and holding dirty metadata
   in memory.

   The idea here was to reduce the amount of activity if we can't write
   anything out, so that bringing up a filesystem in "super ro" mode
   would be more lilkely to work for data recovery - but norecovery is
   the correct option for this.

 - btree_trans->locked; we now track whether a btree_trans has any btree
   nodes locked, and this is used for improved assertions related to
   trans_unlock() and trans_relock(). We'll also be using it for
   improving how we work with lockdep in the future: we don't want
   lockdep to be tracking individual btree node locks because we take
   too many for lockdep to track, and it's not necessary since we have a
   cycle detector.

 - Trigger improvements that are prep work for online fsck

 - BTREE_TRIGGER_check_repair; this regularizes how we do some repair
   work for extents that goes with running triggers in fsck, and fixes
   some subtle issues with transaction restarts there.

 - bch2_snapshot_equiv() has now been ripped out of fsck.c; snapshot
   equivalence classes are for when snapshot deletion leaves behind
   redundant snapshot nodes, but snapshot deletion now cleans this up
   right away, so the abstraction doesn't need to leak.

 - Improvements to how we resume writing to the journal in recovery. The
   code for picking the new place to write when reading the journal is
   greatly simplified and we also store the position in the superblock
   for when we don't read the journal; this means that we preserve more
   of the journal for list_journal debugging.

 - Improvements to sysfs btree_cache and btree_node_cache, for debugging
   memory reclaim.

 - We now detect when we've blocked for 10 seconds on the allocator in
   the write path and dump some useful info.

 - Safety fixes for devices references: this is a big series that
   changes almost all device lookups to properly check if the device
   exists and take a reference to it.

   Previously we assumed that if a bkey exists that references a device
   then the device must exist, and this was enforced in .invalid
   methods, but this was incorrect because it meant device removal
   relied on accounting being correct to not leave keys pointing to
   invalid devices, and that's not something we can assume.

   Getting the "pointer to invalid device" checks out of our .invalid()
   methods fixes some long standing device removal bugs; the only
   outstanding bug with device removal now is a race between the discard
   path and deleting alloc info, which should be easily fixed.

 - The allocator now prefers not to expand the new
   member_info.btree_allocated bitmap, meaning if repair ever requires
   scanning for btree nodes (because of a corrupt interior nodes) we
   won't have to scan the whole device(s).

 - New coding style document, which among other things talks about the
   correct usage of assertions

* tag 'bcachefs-2024-05-19' of https://evilpiepirate.org/git/bcachefs: (155 commits)
  bcachefs: add no_invalid_checks flag
  bcachefs: add counters for failed shrinker reclaim
  bcachefs: Fix sb_field_downgrade validation
  bcachefs: Plumb bch_validate_flags to sb_field_ops.validate()
  bcachefs: s/bkey_invalid_flags/bch_validate_flags
  bcachefs: fsync() should not return -EROFS
  bcachefs: Invalid devices are now checked for by fsck, not .invalid methods
  bcachefs: kill bch2_dev_bkey_exists() in bch2_check_fix_ptrs()
  bcachefs: kill bch2_dev_bkey_exists() in bch2_read_endio()
  bcachefs: bch2_dev_get_ioref() checks for device not present
  bcachefs: bch2_dev_get_ioref2(); io_read.c
  bcachefs: bch2_dev_get_ioref2(); debug.c
  bcachefs: bch2_dev_get_ioref2(); journal_io.c
  bcachefs: bch2_dev_get_ioref2(); io_write.c
  bcachefs: bch2_dev_get_ioref2(); btree_io.c
  bcachefs: bch2_dev_get_ioref2(); backpointers.c
  bcachefs: bch2_dev_get_ioref2(); alloc_background.c
  bcachefs: for_each_bset() declares loop iter
  bcachefs: Move BCACHEFS_STATFS_MAGIC value to UAPI magic.h
  bcachefs: Improve sysfs internal/btree_cache
  ...
 2024-05-19 13:45:48 -07:00
Linus Torvalds
a90f1cd105 Turbostat 2024.05.10 update since 2024.04.08: 
Survive sparse die id's seen in Linux-6.9.
 
 Handle clustered-uncore topology in new/upcoming hardware.
 
 For non-root use, add ability to see software C-state counters.
 
 Enable reading core and package hardware cstate via perf,
 and prefer perf over the MSR driver access for these counters.
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Merge tag 'turbostat-for-Linux-6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux

Pull turbostat updates from Len Brown:

 - Survive sparse die id's seen in Linux-6.9

 - Handle clustered-uncore topology in new/upcoming hardware

 - For non-root use, add ability to see software C-state counters

 - Enable reading core and package hardware cstate via perf, and prefer
   perf over the MSR driver access for these counters

* tag 'turbostat-for-Linux-6.10-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/lenb/linux:
  tools/power turbostat: version 2024.05.10
  tools/power turbostat: Ignore pkg_cstate_limit when it is not available
  tools/power turbostat: Fix order of strings in pkg_cstate_limit_strings
  tools/power turbostat: Read Package-cstates via perf
  tools/power turbostat: Read Core-cstates via perf
  tools/power turbostat: Avoid possible memory corruption due to sparse topology IDs
  tools/power turbostat: Add columns for clustered uncore frequency
  tools/power turbostat: Enable non-privileged users to read sysfs counters
  tools/power turbostat: Replace _Static_assert with BUILD_BUG_ON
  tools/power turbostat: Add ARL-H support
  tools/power turbostat: Enhance ARL/LNL support
  tools/power turbostat: Survive sparse die_id
  tools/power turbostat: Remember global max_die_id
  tools/power turbostat: Harden probe_intel_uncore_frequency()
  tools/power turbostat: Add "snapshot:" Makefile target
 2024-05-19 12:33:28 -07:00
Linus Torvalds
a76056285f kgdb patches for 6.10 
Nine patches this cycle and they split into just three topics:
 
 1. Adopt coccinelle's recommendation to adopt str_plural().
 2. A set of seven patches to refactor kdb_read() to improve both code clarity
    and it's discipline with respect to fixed size buffers. This isn't just a
    refactor. Between them these also fix a cursor movement redraw problem and
    two buffer overflows (one latent and one real, albeit difficult to
    tickle).
 3. Fix an NMI-safety problem when enqueuing kdb's keyboard reset code.
 
 I wrote eight of the nine patches in this collection so many thanks to Doug
 Anderson for the reviews. The changes that affects drivers/tty/serial is
 acked by Greg KH.
 
 Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
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Merge tag 'kgdb-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux

Pull kgdb updates from Daniel Thompson:
 "Nine patches this cycle and they split into just three topics:

   - Adopt coccinelle's recommendation to adopt str_plural()

   - A set of seven patches to refactor kdb_read() to improve both code
     clarity and its discipline with respect to fixed size buffers.

     This isn't just a refactor. Between them these also fix a cursor
     movement redraw problem and two buffer overflows (one latent and
     one real, albeit difficult to tickle).

   - Fix an NMI-safety problem when enqueuing kdb's keyboard reset code

  I wrote eight of the nine patches in this collection so many thanks to
  Doug Anderson for the reviews. The changes that affects
  drivers/tty/serial is acked by Greg KH"

* tag 'kgdb-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/danielt/linux:
  serial: kgdboc: Fix NMI-safety problems from keyboard reset code
  kdb: Simplify management of tmpbuffer in kdb_read()
  kdb: Replace double memcpy() with memmove() in kdb_read()
  kdb: Use format-specifiers rather than memset() for padding in kdb_read()
  kdb: Merge identical case statements in kdb_read()
  kdb: Fix console handling when editing and tab-completing commands
  kdb: Use format-strings rather than '\0' injection in kdb_read()
  kdb: Fix buffer overflow during tab-complete
  kdb: Use str_plural() to fix Coccinelle warning
 2024-05-19 12:01:00 -07:00
Linus Torvalds
41c14f1ac8 Miscellaneous fixes: 
- Fix a NOP-patching bug that resulted in valid
    but suboptimal NOP sequences in certain cases.
 
  - Fix build warnings related to fall-through control flow
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 fixes from Ingo Molnar:

 - Fix a NOP-patching bug that resulted in valid but suboptimal
   NOP sequences in certain cases

 - Fix build warnings related to fall-through control flow

* tag 'x86-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/alternatives: Use the correct length when optimizing NOPs
  x86/boot: Address clang -Wimplicit-fallthrough in vsprintf()
  x86/boot: Add a fallthrough annotation
 2024-05-19 11:42:29 -07:00
Linus Torvalds
8dde191aab Misc fixes: 
- Fix a sched_balance_newidle setting bug
 
  - Fix bug in the setting of /sys/fs/cgroup/test/cpu.max.burst
 
  - Fix variable-shadowing build warning
 
  - Extend sched-domains debug output
 
  - Fix documentation
 
  - Fix comments
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'sched-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull scheduler fixes from Ingo Molnar:

 - Fix a sched_balance_newidle setting bug

 - Fix bug in the setting of /sys/fs/cgroup/test/cpu.max.burst

 - Fix variable-shadowing build warning

 - Extend sched-domains debug output

 - Fix documentation

 - Fix comments

* tag 'sched-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  sched/core: Fix incorrect initialization of the 'burst' parameter in cpu_max_write()
  sched/fair: Remove stale FREQUENCY_UTIL comment
  sched/fair: Fix initial util_avg calculation
  docs: cgroup-v1: Clarify that domain levels are system-specific
  sched/debug: Dump domains' level
  sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level
  arch/topology: Fix variable naming to avoid shadowing
 2024-05-19 11:38:15 -07:00
Linus Torvalds
fe0d43f231 Changes: 
- Extend the x86 instruction decoder with APX and
    other new instructions
 
  - Misc cleanups
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull perf event updates from Ingo Molnar:

 - Extend the x86 instruction decoder with APX and
   other new instructions

 - Misc cleanups

* tag 'perf-urgent-2024-05-18' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  perf/x86/cstate: Remove unused 'struct perf_cstate_msr'
  perf/x86/rapl: Rename 'maxdie' to nr_rapl_pmu and 'dieid' to rapl_pmu_idx
  x86/insn: Add support for APX EVEX instructions to the opcode map
  x86/insn: Add support for APX EVEX to the instruction decoder logic
  x86/insn: x86/insn: Add support for REX2 prefix to the instruction decoder opcode map
  x86/insn: Add support for REX2 prefix to the instruction decoder logic
  x86/insn: Add misc new Intel instructions
  x86/insn: Add VEX versions of VPDPBUSD, VPDPBUSDS, VPDPWSSD and VPDPWSSDS
  x86/insn: Fix PUSH instruction in x86 instruction decoder opcode map
  x86/insn: Add Key Locker instructions to the opcode map
 2024-05-19 11:32:42 -07:00
Linus Torvalds
61307b7be4 The usual shower of singleton fixes and minor series all over MM, 
documented (hopefully adequately) in the respective changelogs.  Notable
 series include:
 
 - Lucas Stach has provided some page-mapping
   cleanup/consolidation/maintainability work in the series "mm/treewide:
   Remove pXd_huge() API".
 
 - In the series "Allow migrate on protnone reference with
   MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's
   MPOL_PREFERRED_MANY mode, yielding almost doubled performance in one
   test.
 
 - In their series "Memory allocation profiling" Kent Overstreet and
   Suren Baghdasaryan have contributed a means of determining (via
   /proc/allocinfo) whereabouts in the kernel memory is being allocated:
   number of calls and amount of memory.
 
 - Matthew Wilcox has provided the series "Various significant MM
   patches" which does a number of rather unrelated things, but in largely
   similar code sites.
 
 - In his series "mm: page_alloc: freelist migratetype hygiene" Johannes
   Weiner has fixed the page allocator's handling of migratetype requests,
   with resulting improvements in compaction efficiency.
 
 - In the series "make the hugetlb migration strategy consistent" Baolin
   Wang has fixed a hugetlb migration issue, which should improve hugetlb
   allocation reliability.
 
 - Liu Shixin has hit an I/O meltdown caused by readahead in a
   memory-tight memcg.  Addressed in the series "Fix I/O high when memory
   almost met memcg limit".
 
 - In the series "mm/filemap: optimize folio adding and splitting" Kairui
   Song has optimized pagecache insertion, yielding ~10% performance
   improvement in one test.
 
 - Baoquan He has cleaned up and consolidated the early zone
   initialization code in the series "mm/mm_init.c: refactor
   free_area_init_core()".
 
 - Baoquan has also redone some MM initializatio code in the series
   "mm/init: minor clean up and improvement".
 
 - MM helper cleanups from Christoph Hellwig in his series "remove
   follow_pfn".
 
 - More cleanups from Matthew Wilcox in the series "Various page->flags
   cleanups".
 
 - Vlastimil Babka has contributed maintainability improvements in the
   series "memcg_kmem hooks refactoring".
 
 - More folio conversions and cleanups in Matthew Wilcox's series
 
 	"Convert huge_zero_page to huge_zero_folio"
 	"khugepaged folio conversions"
 	"Remove page_idle and page_young wrappers"
 	"Use folio APIs in procfs"
 	"Clean up __folio_put()"
 	"Some cleanups for memory-failure"
 	"Remove page_mapping()"
 	"More folio compat code removal"
 
 - David Hildenbrand chipped in with "fs/proc/task_mmu: convert hugetlb
   functions to work on folis".
 
 - Code consolidation and cleanup work related to GUP's handling of
   hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2".
 
 - Rick Edgecombe has developed some fixes to stack guard gaps in the
   series "Cover a guard gap corner case".
 
 - Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the series
   "mm/ksm: fix ksm exec support for prctl".
 
 - Baolin Wang has implemented NUMA balancing for multi-size THPs.  This
   is a simple first-cut implementation for now.  The series is "support
   multi-size THP numa balancing".
 
 - Cleanups to vma handling helper functions from Matthew Wilcox in the
   series "Unify vma_address and vma_pgoff_address".
 
 - Some selftests maintenance work from Dev Jain in the series
   "selftests/mm: mremap_test: Optimizations and style fixes".
 
 - Improvements to the swapping of multi-size THPs from Ryan Roberts in
   the series "Swap-out mTHP without splitting".
 
 - Kefeng Wang has significantly optimized the handling of arm64's
   permission page faults in the series
 
 	"arch/mm/fault: accelerate pagefault when badaccess"
 	"mm: remove arch's private VM_FAULT_BADMAP/BADACCESS"
 
 - GUP cleanups from David Hildenbrand in "mm/gup: consistently call it
   GUP-fast".
 
 - hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault path to
   use struct vm_fault".
 
 - selftests build fixes from John Hubbard in the series "Fix
   selftests/mm build without requiring "make headers"".
 
 - Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the
   series "Improved Memory Tier Creation for CPUless NUMA Nodes".  Fixes
   the initialization code so that migration between different memory types
   works as intended.
 
 - David Hildenbrand has improved follow_pte() and fixed an errant driver
   in the series "mm: follow_pte() improvements and acrn follow_pte()
   fixes".
 
 - David also did some cleanup work on large folio mapcounts in his
   series "mm: mapcount for large folios + page_mapcount() cleanups".
 
 - Folio conversions in KSM in Alex Shi's series "transfer page to folio
   in KSM".
 
 - Barry Song has added some sysfs stats for monitoring multi-size THP's
   in the series "mm: add per-order mTHP alloc and swpout counters".
 
 - Some zswap cleanups from Yosry Ahmed in the series "zswap same-filled
   and limit checking cleanups".
 
 - Matthew Wilcox has been looking at buffer_head code and found the
   documentation to be lacking.  The series is "Improve buffer head
   documentation".
 
 - Multi-size THPs get more work, this time from Lance Yang.  His series
   "mm/madvise: enhance lazyfreeing with mTHP in madvise_free" optimizes
   the freeing of these things.
 
 - Kemeng Shi has added more userspace-visible writeback instrumentation
   in the series "Improve visibility of writeback".
 
 - Kemeng Shi then sent some maintenance work on top in the series "Fix
   and cleanups to page-writeback".
 
 - Matthew Wilcox reduces mmap_lock traffic in the anon vma code in the
   series "Improve anon_vma scalability for anon VMAs".  Intel's test bot
   reported an improbable 3x improvement in one test.
 
 - SeongJae Park adds some DAMON feature work in the series
 
 	"mm/damon: add a DAMOS filter type for page granularity access recheck"
 	"selftests/damon: add DAMOS quota goal test"
 
 - Also some maintenance work in the series
 
 	"mm/damon/paddr: simplify page level access re-check for pageout"
 	"mm/damon: misc fixes and improvements"
 
 - David Hildenbrand has disabled some known-to-fail selftests ni the
   series "selftests: mm: cow: flag vmsplice() hugetlb tests as XFAIL".
 
 - memcg metadata storage optimizations from Shakeel Butt in "memcg:
   reduce memory consumption by memcg stats".
 
 - DAX fixes and maintenance work from Vishal Verma in the series
   "dax/bus.c: Fixups for dax-bus locking".
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Merge tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull mm updates from Andrew Morton:
 "The usual shower of singleton fixes and minor series all over MM,
  documented (hopefully adequately) in the respective changelogs.
  Notable series include:

   - Lucas Stach has provided some page-mapping cleanup/consolidation/
     maintainability work in the series "mm/treewide: Remove pXd_huge()
     API".

   - In the series "Allow migrate on protnone reference with
     MPOL_PREFERRED_MANY policy", Donet Tom has optimized mempolicy's
     MPOL_PREFERRED_MANY mode, yielding almost doubled performance in
     one test.

   - In their series "Memory allocation profiling" Kent Overstreet and
     Suren Baghdasaryan have contributed a means of determining (via
     /proc/allocinfo) whereabouts in the kernel memory is being
     allocated: number of calls and amount of memory.

   - Matthew Wilcox has provided the series "Various significant MM
     patches" which does a number of rather unrelated things, but in
     largely similar code sites.

   - In his series "mm: page_alloc: freelist migratetype hygiene"
     Johannes Weiner has fixed the page allocator's handling of
     migratetype requests, with resulting improvements in compaction
     efficiency.

   - In the series "make the hugetlb migration strategy consistent"
     Baolin Wang has fixed a hugetlb migration issue, which should
     improve hugetlb allocation reliability.

   - Liu Shixin has hit an I/O meltdown caused by readahead in a
     memory-tight memcg. Addressed in the series "Fix I/O high when
     memory almost met memcg limit".

   - In the series "mm/filemap: optimize folio adding and splitting"
     Kairui Song has optimized pagecache insertion, yielding ~10%
     performance improvement in one test.

   - Baoquan He has cleaned up and consolidated the early zone
     initialization code in the series "mm/mm_init.c: refactor
     free_area_init_core()".

   - Baoquan has also redone some MM initializatio code in the series
     "mm/init: minor clean up and improvement".

   - MM helper cleanups from Christoph Hellwig in his series "remove
     follow_pfn".

   - More cleanups from Matthew Wilcox in the series "Various
     page->flags cleanups".

   - Vlastimil Babka has contributed maintainability improvements in the
     series "memcg_kmem hooks refactoring".

   - More folio conversions and cleanups in Matthew Wilcox's series:
	"Convert huge_zero_page to huge_zero_folio"
	"khugepaged folio conversions"
	"Remove page_idle and page_young wrappers"
	"Use folio APIs in procfs"
	"Clean up __folio_put()"
	"Some cleanups for memory-failure"
	"Remove page_mapping()"
	"More folio compat code removal"

   - David Hildenbrand chipped in with "fs/proc/task_mmu: convert
     hugetlb functions to work on folis".

   - Code consolidation and cleanup work related to GUP's handling of
     hugetlbs in Peter Xu's series "mm/gup: Unify hugetlb, part 2".

   - Rick Edgecombe has developed some fixes to stack guard gaps in the
     series "Cover a guard gap corner case".

   - Jinjiang Tu has fixed KSM's behaviour after a fork+exec in the
     series "mm/ksm: fix ksm exec support for prctl".

   - Baolin Wang has implemented NUMA balancing for multi-size THPs.
     This is a simple first-cut implementation for now. The series is
     "support multi-size THP numa balancing".

   - Cleanups to vma handling helper functions from Matthew Wilcox in
     the series "Unify vma_address and vma_pgoff_address".

   - Some selftests maintenance work from Dev Jain in the series
     "selftests/mm: mremap_test: Optimizations and style fixes".

   - Improvements to the swapping of multi-size THPs from Ryan Roberts
     in the series "Swap-out mTHP without splitting".

   - Kefeng Wang has significantly optimized the handling of arm64's
     permission page faults in the series
	"arch/mm/fault: accelerate pagefault when badaccess"
	"mm: remove arch's private VM_FAULT_BADMAP/BADACCESS"

   - GUP cleanups from David Hildenbrand in "mm/gup: consistently call
     it GUP-fast".

   - hugetlb fault code cleanups from Vishal Moola in "Hugetlb fault
     path to use struct vm_fault".

   - selftests build fixes from John Hubbard in the series "Fix
     selftests/mm build without requiring "make headers"".

   - Memory tiering fixes/improvements from Ho-Ren (Jack) Chuang in the
     series "Improved Memory Tier Creation for CPUless NUMA Nodes".
     Fixes the initialization code so that migration between different
     memory types works as intended.

   - David Hildenbrand has improved follow_pte() and fixed an errant
     driver in the series "mm: follow_pte() improvements and acrn
     follow_pte() fixes".

   - David also did some cleanup work on large folio mapcounts in his
     series "mm: mapcount for large folios + page_mapcount() cleanups".

   - Folio conversions in KSM in Alex Shi's series "transfer page to
     folio in KSM".

   - Barry Song has added some sysfs stats for monitoring multi-size
     THP's in the series "mm: add per-order mTHP alloc and swpout
     counters".

   - Some zswap cleanups from Yosry Ahmed in the series "zswap
     same-filled and limit checking cleanups".

   - Matthew Wilcox has been looking at buffer_head code and found the
     documentation to be lacking. The series is "Improve buffer head
     documentation".

   - Multi-size THPs get more work, this time from Lance Yang. His
     series "mm/madvise: enhance lazyfreeing with mTHP in madvise_free"
     optimizes the freeing of these things.

   - Kemeng Shi has added more userspace-visible writeback
     instrumentation in the series "Improve visibility of writeback".

   - Kemeng Shi then sent some maintenance work on top in the series
     "Fix and cleanups to page-writeback".

   - Matthew Wilcox reduces mmap_lock traffic in the anon vma code in
     the series "Improve anon_vma scalability for anon VMAs". Intel's
     test bot reported an improbable 3x improvement in one test.

   - SeongJae Park adds some DAMON feature work in the series
	"mm/damon: add a DAMOS filter type for page granularity access recheck"
	"selftests/damon: add DAMOS quota goal test"

   - Also some maintenance work in the series
	"mm/damon/paddr: simplify page level access re-check for pageout"
	"mm/damon: misc fixes and improvements"

   - David Hildenbrand has disabled some known-to-fail selftests ni the
     series "selftests: mm: cow: flag vmsplice() hugetlb tests as
     XFAIL".

   - memcg metadata storage optimizations from Shakeel Butt in "memcg:
     reduce memory consumption by memcg stats".

   - DAX fixes and maintenance work from Vishal Verma in the series
     "dax/bus.c: Fixups for dax-bus locking""

* tag 'mm-stable-2024-05-17-19-19' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (426 commits)
  memcg, oom: cleanup unused memcg_oom_gfp_mask and memcg_oom_order
  selftests/mm: hugetlb_madv_vs_map: avoid test skipping by querying hugepage size at runtime
  mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_wp
  mm/hugetlb: add missing VM_FAULT_SET_HINDEX in hugetlb_fault
  selftests: cgroup: add tests to verify the zswap writeback path
  mm: memcg: make alloc_mem_cgroup_per_node_info() return bool
  mm/damon/core: fix return value from damos_wmark_metric_value
  mm: do not update memcg stats for NR_{FILE/SHMEM}_PMDMAPPED
  selftests: cgroup: remove redundant enabling of memory controller
  Docs/mm/damon/maintainer-profile: allow posting patches based on damon/next tree
  Docs/mm/damon/maintainer-profile: change the maintainer's timezone from PST to PT
  Docs/mm/damon/design: use a list for supported filters
  Docs/admin-guide/mm/damon/usage: fix wrong schemes effective quota update command
  Docs/admin-guide/mm/damon/usage: fix wrong example of DAMOS filter matching sysfs file
  selftests/damon: classify tests for functionalities and regressions
  selftests/damon/_damon_sysfs: use 'is' instead of '==' for 'None'
  selftests/damon/_damon_sysfs: find sysfs mount point from /proc/mounts
  selftests/damon/_damon_sysfs: check errors from nr_schemes file reads
  mm/damon/core: initialize ->esz_bp from damos_quota_init_priv()
  selftests/damon: add a test for DAMOS quota goal
  ...
 2024-05-19 09:21:03 -07:00
Linus Torvalds
0450d2083b an important fix to address recent netfs regression (data corruption) 
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Merge tag '6.10-rc-smb-fix' of git://git.samba.org/sfrench/cifs-2.6

Pull smb client fix from Steve French:
 "An important fix to address recent netfs regression (data corruption)"

* tag '6.10-rc-smb-fix' of git://git.samba.org/sfrench/cifs-2.6:
  cifs: fix data corruption in read after invalidate
 2024-05-18 14:19:47 -07:00
Linus Torvalds
7991c92f4c Ext4 patches for the 6.10-rc1 merge window: 
- more folio conversion patches
  - add support for FS_IOC_GETFSSYSFSPATH
  - mballoc cleaups and add more kunit tests
  - sysfs cleanups and bug fixes
  - miscellaneous bug fixes and cleanups
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Merge tag 'ext4_for_linus-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4

Pull ext4 updates from Ted Ts'o:

 - more folio conversion patches

 - add support for FS_IOC_GETFSSYSFSPATH

 - mballoc cleaups and add more kunit tests

 - sysfs cleanups and bug fixes

 - miscellaneous bug fixes and cleanups

* tag 'ext4_for_linus-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: (40 commits)
  ext4: fix error pointer dereference in ext4_mb_load_buddy_gfp()
  jbd2: add prefix 'jbd2' for 'shrink_type'
  jbd2: use shrink_type type instead of bool type for __jbd2_journal_clean_checkpoint_list()
  ext4: fix uninitialized ratelimit_state->lock access in __ext4_fill_super()
  ext4: remove calls to to set/clear the folio error flag
  ext4: propagate errors from ext4_sb_bread() in ext4_xattr_block_cache_find()
  ext4: fix mb_cache_entry's e_refcnt leak in ext4_xattr_block_cache_find()
  jbd2: remove redundant assignement to variable err
  ext4: remove the redundant folio_wait_stable()
  ext4: fix potential unnitialized variable
  ext4: convert ac_buddy_page to ac_buddy_folio
  ext4: convert ac_bitmap_page to ac_bitmap_folio
  ext4: convert ext4_mb_init_cache() to take a folio
  ext4: convert bd_buddy_page to bd_buddy_folio
  ext4: convert bd_bitmap_page to bd_bitmap_folio
  ext4: open coding repeated check in next_linear_group
  ext4: use correct criteria name instead stale integer number in comment
  ext4: call ext4_mb_mark_free_simple to free continuous bits in found chunk
  ext4: add test_mb_mark_used_cost to estimate cost of mb_mark_used
  ext4: keep "prefetch_grp" and "nr" consistent
  ...
 2024-05-18 14:11:54 -07:00
Linus Torvalds
61ea647ed1 NFSD 6.10 Release Notes 
This is a light release containing mostly optimizations, code clean-
 ups, and minor bug fixes. This development cycle has focused on non-
 upstream kernel work:
 
 1. Continuing to build upstream CI for NFSD, based on kdevops
 2. Backporting NFSD filecache-related fixes to selected LTS kernels
 
 One notable new feature in v6.10 NFSD is the addition of a new
 netlink protocol dedicated to configuring NFSD. A new user space
 tool, nfsdctl, is to be added to nfs-utils. Lots more to come here.
 
 As always I am very grateful to NFSD contributors, reviewers,
 testers, and bug reporters who participated during this cycle.
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Merge tag 'nfsd-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "This is a light release containing mostly optimizations, code clean-
  ups, and minor bug fixes. This development cycle has focused on non-
  upstream kernel work:

   1. Continuing to build upstream CI for NFSD, based on kdevops

   2. Backporting NFSD filecache-related fixes to selected LTS kernels

  One notable new feature in v6.10 NFSD is the addition of a new netlink
  protocol dedicated to configuring NFSD. A new user space tool,
  nfsdctl, is to be added to nfs-utils. Lots more to come here.

  As always I am very grateful to NFSD contributors, reviewers, testers,
  and bug reporters who participated during this cycle"

* tag 'nfsd-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (29 commits)
  NFSD: Force all NFSv4.2 COPY requests to be synchronous
  SUNRPC: Fix gss_free_in_token_pages()
  NFS/knfsd: Remove the invalid NFS error 'NFSERR_OPNOTSUPP'
  knfsd: LOOKUP can return an illegal error value
  nfsd: set security label during create operations
  NFSD: Add COPY status code to OFFLOAD_STATUS response
  NFSD: Record status of async copy operation in struct nfsd4_copy
  SUNRPC: Remove comment for sp_lock
  NFSD: add listener-{set,get} netlink command
  SUNRPC: add a new svc_find_listener helper
  SUNRPC: introduce svc_xprt_create_from_sa utility routine
  NFSD: add write_version to netlink command
  NFSD: convert write_threads to netlink command
  NFSD: allow callers to pass in scope string to nfsd_svc
  NFSD: move nfsd_mutex handling into nfsd_svc callers
  lockd: host: Remove unnecessary statements＇host = NULL;＇
  nfsd: don't create nfsv4recoverydir in nfsdfs when not used.
  nfsd: optimise recalculate_deny_mode() for a common case
  nfsd: add tracepoint in mark_client_expired_locked
  nfsd: new tracepoint for check_slot_seqid
  ...
 2024-05-18 14:04:20 -07:00
Linus Torvalds
25f4874662 RDMA v6.10 merge window 
Normal set of driver updates and small fixes:
 
 - Small improvements and fixes for erdma, efa, hfi1, bnxt_re
 
 - Fix a UAF crash after module unload on leaking restrack entry
 
 - Continue adding full RDMA support in mana with support for EQs, GID's
   and CQs
 
 - Improvements to the mkey cache in mlx5
 
 - DSCP traffic class support in hns and several bug fixes
 
 - Cap the maximum number of MADs in the receive queue to avoid OOM
 
 - Another batch of rxe bug fixes from large scale testing
 
 - __iowrite64_copy() optimizations for write combining MMIO memory
 
 - Remove NULL checks before dev_put/hold()
 
 - EFA support for receive with immediate
 
 - Fix a recent memleaking regression in a cma error path
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma

Pull rdma updates from Jason Gunthorpe:
 "Aside from the usual things this has an arch update for
  __iowrite64_copy() used by the RDMA drivers.

  This API was intended to generate large 64 byte MemWr TLPs on PCI.
  These days most processors had done this by just repeating writel() in
  a loop. S390 and some new ARM64 designs require a special helper to
  get this to generate.

   - Small improvements and fixes for erdma, efa, hfi1, bnxt_re

   - Fix a UAF crash after module unload on leaking restrack entry

   - Continue adding full RDMA support in mana with support for EQs,
     GID's and CQs

   - Improvements to the mkey cache in mlx5

   - DSCP traffic class support in hns and several bug fixes

   - Cap the maximum number of MADs in the receive queue to avoid OOM

   - Another batch of rxe bug fixes from large scale testing

   - __iowrite64_copy() optimizations for write combining MMIO memory

   - Remove NULL checks before dev_put/hold()

   - EFA support for receive with immediate

   - Fix a recent memleaking regression in a cma error path"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (70 commits)
  RDMA/cma: Fix kmemleak in rdma_core observed during blktests nvme/rdma use siw
  RDMA/IPoIB: Fix format truncation compilation errors
  bnxt_re: avoid shift undefined behavior in bnxt_qplib_alloc_init_hwq
  RDMA/efa: Support QP with unsolicited write w/ imm. receive
  IB/hfi1: Remove generic .ndo_get_stats64
  IB/hfi1: Do not use custom stat allocator
  RDMA/hfi1: Use RMW accessors for changing LNKCTL2
  RDMA/mana_ib: implement uapi for creation of rnic cq
  RDMA/mana_ib: boundary check before installing cq callbacks
  RDMA/mana_ib: introduce a helper to remove cq callbacks
  RDMA/mana_ib: create and destroy RNIC cqs
  RDMA/mana_ib: create EQs for RNIC CQs
  RDMA/core: Remove NULL check before dev_{put, hold}
  RDMA/ipoib: Remove NULL check before dev_{put, hold}
  RDMA/mlx5: Remove NULL check before dev_{put, hold}
  RDMA/mlx5: Track DCT, DCI and REG_UMR QPs as diver_detail resources.
  RDMA/core: Add an option to display driver-specific QPs in the rdmatool
  RDMA/efa: Add shutdown notifier
  RDMA/mana_ib: Fix missing ret value
  IB/mlx5: Use __iowrite64_copy() for write combining stores
  ...
 2024-05-18 13:04:15 -07:00
Linus Torvalds
56172ac102 HSI changes for the 6.10 series 
* convert to platform remove callback returning void
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Merge tag 'hsi-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi

Pull HSI update from Sebastian Reichel:

 - convert to platform remove callback returning void

* tag 'hsi-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-hsi:
  HSI: omap_ssi_port: Convert to platform remove callback returning void
  HSI: omap_ssi_core: Convert to platform remove callback returning void
 2024-05-18 12:58:22 -07:00
Linus Torvalds
85d46148f8 power supply and reset changes for the 6.10 series 
* core: simplify POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR handling
  * test-power: add POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR support
  * chrome EC drivers: add ID based probing
  * bq27xxx: simplify update loop to reduce I2C traffic
  * max8903 binding: fix GPIO polarity description
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Merge tag 'for-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply

Pull power supply and reset updates from Sebastian Reichel:

 - core: simplify POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR handling

 - test-power: add POWER_SUPPLY_PROP_CHARGE_BEHAVIOUR support

 - chrome EC drivers: add ID based probing

 - bq27xxx: simplify update loop to reduce I2C traffic

 - max8903 binding: fix GPIO polarity description

* tag 'for-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/sre/linux-power-supply:
  dt-bindings: power: supply: max8903: specify flt-gpios as input
  power: supply: bq27xxx: Move health reading out of update loop
  power: supply: bq27xxx: Move cycle count reading out of update loop
  power: supply: bq27xxx: Move energy reading out of update loop
  power: supply: bq27xxx: Move charge reading out of update loop
  power: supply: bq27xxx: Move time reading out of update loop
  power: supply: bq27xxx: Move temperature reading out of update loop
  power: supply: cros_pchg: provide ID table for avoiding fallback match
  power: supply: cros_usbpd: provide ID table for avoiding fallback match
  power: supply: core: simplify charge_behaviour formatting
  power: supply: test-power: implement charge_behaviour property
 2024-05-18 12:54:32 -07:00
Linus Torvalds
619b92b9c8 I'm actually surprised this time. There aren't any new Qualcomm SoC clk 
drivers. And there's zero diff in the core clk framework. Instead we have new
 clk drivers for STM and Sophgo, with Samsung^WGoogle in third for the diffstat
 because they introduced HSI0 and HSI2 clk drivers for Google's GS101 SoC (high
 speed interface things like PCIe, UFS, and MMC). Beyond those big diffs there's
 the usual updates to various clk drivers for incorrect parent descriptions or
 mising MODULE_DEVICE_TABLE()s, etc. Nothing in particular stands out as super
 interesting here.
 
 New Drivers:
  - STM32MP257 SoC clk driver
  - Airoha EN7581 SoC clk driver
  - Sophgo CV1800B, CV1812H and SG2000 SoC clk driver
  - Loongson-2k0500 and Loongson-2k2000 SoC clk driver
  - Add HSI0 and HSI2 clock controllers for Google GS101
  - Add i.MX95 BLK CTL clock driver
 
 Updates:
  - Allocate clk_ops dynamically for SCMI clk driver
  - Add support in qcom RCG and RCG2 for multiple configurations for the same frequency
  - Use above support for IPQ8074 NSS port 5 and 6 clocks to resolve issues
  - Fix the Qualcomm APSS IPQ5018 PLL to fix boot failures of some boards
  - Cleanups and fixes for Qualcomm Stromer PLLs
  - Reduce max CPU frequency on Qualcomm APSS IPQ5018
  - Fix Kconfig dependencies of Qualcomm SM8650 GPU and SC8280XP camera
    clk drivers
  - Make Qualcomm MSM8998 Venus clocks functional
  - Cleanup downstream remnants related to DisplayPort across Qualcomm
    SM8450, SM6350, SM8550, and SM8650
  - Reuse the Huayra APSS register map on Qualcomm MSM8996 CBF PLL
  - Use a specific Qualcomm QCS404 compatible for the otherwise generic
    HFPLL
  - Remove Qualcomm SM8150 CPUSS AHB clk as it is unused
  - Remove an unused field in the Qualcomm RPM clk driver
  - Add missing MODULE_DEVICE_TABLE to Qualcomm MSM8917 and MSM8953
    global clock controller drivers
  - Allow choice of manual or firmware-driven control over PLLs, needed
    to fully implement CPU clock controllers on Exynos850
  - Correct PLL clock IDs on ExynosAutov9
  - Propagate certain clock rates to allow setting proper SPI clock
    rates on Google GS101
  - Mark certain Google GS101 clocks critical
  - Convert old S3C64xx clock controller bindings to DT schema
  - Add new PLL rate and missing mux on Rockchip rk3568
  - Add missing reset line on Rockchip rk3588
  - Removal of an unused field in struct rockchip_mmc_clock
  - Amlogic s4/a1: add regmap maximum register for proper debugfs dump
  - Amlogic s4: add MODULE_DEVICE_TABLE() on pll and periph controllers
  - Amlogic pll driver: print clock name on lock error to help debug
  - Amlogic vclk: finish dsi clock path support
  - Amlogic license: fix occurence "GPL v2" as reported by checkpatch
  - Add PM runtime support to i.MX8MP Audiomix
  - Add DT schema for i.MX95 Display Master Block Control
  - Convert to platform remove callback returning void for i.MX8MP
    Audiomix
  - Add SPI (MSIOF) and external interrupt (INTC-EX) clocks on Renesas R-Car V4M
  - Add interrupt controller (PLIC) clock and reset on Renesas RZ/Five
  - Prepare power domain support for Renesas RZ/G2L family members, and add
    actual support on Renesas RZ/G3S SoC
  - Add thermal, serial (SCIF), and timer (CMT/TMU) clocks on Renesas R-Car V4M
  - Add additional constraints to Allwinner A64 PLL MIPI clock
  - Fix autoloading sunxi-ng clocks when build as a module
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Merge tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux

Pull clk updates from Stephen Boyd:
 "I'm actually surprised this time. There aren't any new Qualcomm SoC
  clk drivers. And there's zero diff in the core clk framework.

  Instead we have new clk drivers for STM and Sophgo, with
  Samsung^WGoogle in third for the diffstat because they introduced HSI0
  and HSI2 clk drivers for Google's GS101 SoC (high speed interface
  things like PCIe, UFS, and MMC).

  Beyond those big diffs there's the usual updates to various clk
  drivers for incorrect parent descriptions or mising
  MODULE_DEVICE_TABLE()s, etc. Nothing in particular stands out as super
  interesting here.

  New Drivers:
   - STM32MP257 SoC clk driver
   - Airoha EN7581 SoC clk driver
   - Sophgo CV1800B, CV1812H and SG2000 SoC clk driver
   - Loongson-2k0500 and Loongson-2k2000 SoC clk driver
   - Add HSI0 and HSI2 clock controllers for Google GS101
   - Add i.MX95 BLK CTL clock driver

  Updates:
   - Allocate clk_ops dynamically for SCMI clk driver
   - Add support in qcom RCG and RCG2 for multiple configurations for
     the same frequency
   - Use above support for IPQ8074 NSS port 5 and 6 clocks to resolve
     issues
   - Fix the Qualcomm APSS IPQ5018 PLL to fix boot failures of some
     boards
   - Cleanups and fixes for Qualcomm Stromer PLLs
   - Reduce max CPU frequency on Qualcomm APSS IPQ5018
   - Fix Kconfig dependencies of Qualcomm SM8650 GPU and SC8280XP camera
     clk drivers
   - Make Qualcomm MSM8998 Venus clocks functional
   - Cleanup downstream remnants related to DisplayPort across Qualcomm
     SM8450, SM6350, SM8550, and SM8650
   - Reuse the Huayra APSS register map on Qualcomm MSM8996 CBF PLL
   - Use a specific Qualcomm QCS404 compatible for the otherwise generic
     HFPLL
   - Remove Qualcomm SM8150 CPUSS AHB clk as it is unused
   - Remove an unused field in the Qualcomm RPM clk driver
   - Add missing MODULE_DEVICE_TABLE to Qualcomm MSM8917 and MSM8953
     global clock controller drivers
   - Allow choice of manual or firmware-driven control over PLLs, needed
     to fully implement CPU clock controllers on Exynos850
   - Correct PLL clock IDs on ExynosAutov9
   - Propagate certain clock rates to allow setting proper SPI clock
     rates on Google GS101
   - Mark certain Google GS101 clocks critical
   - Convert old S3C64xx clock controller bindings to DT schema
   - Add new PLL rate and missing mux on Rockchip rk3568
   - Add missing reset line on Rockchip rk3588
   - Removal of an unused field in struct rockchip_mmc_clock
   - Amlogic s4/a1: add regmap maximum register for proper debugfs dump
   - Amlogic s4: add MODULE_DEVICE_TABLE() on pll and periph controllers
   - Amlogic pll driver: print clock name on lock error to help debug
   - Amlogic vclk: finish dsi clock path support
   - Amlogic license: fix occurence "GPL v2" as reported by checkpatch
   - Add PM runtime support to i.MX8MP Audiomix
   - Add DT schema for i.MX95 Display Master Block Control
   - Convert to platform remove callback returning void for i.MX8MP
     Audiomix
   - Add SPI (MSIOF) and external interrupt (INTC-EX) clocks on Renesas
     R-Car V4M
   - Add interrupt controller (PLIC) clock and reset on Renesas RZ/Five
   - Prepare power domain support for Renesas RZ/G2L family members, and
     add actual support on Renesas RZ/G3S SoC
   - Add thermal, serial (SCIF), and timer (CMT/TMU) clocks on Renesas
     R-Car V4M
   - Add additional constraints to Allwinner A64 PLL MIPI clock
   - Fix autoloading sunxi-ng clocks when build as a module"

* tag 'clk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/clk/linux: (118 commits)
  clk: samsung: Don't register clkdev lookup for the fixed rate clocks
  clk, reset: microchip: mpfs: fix incorrect preprocessor conditions
  clk: qcom: clk-alpha-pll: fix rate setting for Stromer PLLs
  clk: qcom: apss-ipq-pll: fix PLL rate for IPQ5018
  clk: qcom: Fix SM_GPUCC_8650 dependencies
  clk: qcom: Fix SC_CAMCC_8280XP dependencies
  dt-bindings: clocks: stm32mp25: add access-controllers description
  clock, reset: microchip: move all mpfs reset code to the reset subsystem
  clk: samsung: gs101: drop unused HSI2 clock parent data
  clk: rockchip: rk3568: Add PLL rate for 724 MHz
  clk: rockchip: Remove an unused field in struct rockchip_mmc_clock
  dt-bindings: clock: fixed: Define a preferred node name
  clk: meson: s4: fix module autoloading
  clk: samsung: gs101: mark some apm UASC and XIU clocks critical
  clk: imx: imx8mp: Convert to platform remove callback returning void
  clk: imx: imx8mp: Switch to RUNTIME_PM_OPS()
  clk: bcm: rpi: Assign ->num before accessing ->hws
  clk: bcm: dvp: Assign ->num before accessing ->hws
  clk: samsung: gs101: add support for cmu_hsi2
  clk: samsung: gs101: add support for cmu_hsi0
  ...
 2024-05-18 12:48:37 -07:00
Linus Torvalds
ff9a79307f Kbuild updates for v6.10 
- Avoid 'constexpr', which is a keyword in C23
 
  - Allow 'dtbs_check' and 'dt_compatible_check' run independently of
    'dt_binding_check'
 
  - Fix weak references to avoid GOT entries in position-independent
    code generation
 
  - Convert the last use of 'optional' property in arch/sh/Kconfig
 
  - Remove support for the 'optional' property in Kconfig
 
  - Remove support for Clang's ThinLTO caching, which does not work with
    the .incbin directive
 
  - Change the semantics of $(src) so it always points to the source
    directory, which fixes Makefile inconsistencies between upstream and
    downstream
 
  - Fix 'make tar-pkg' for RISC-V to produce a consistent package
 
  - Provide reasonable default coverage for objtool, sanitizers, and
    profilers
 
  - Remove redundant OBJECT_FILES_NON_STANDARD, KASAN_SANITIZE, etc.
 
  - Remove the last use of tristate choice in drivers/rapidio/Kconfig
 
  - Various cleanups and fixes in Kconfig
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Merge tag 'kbuild-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

Pull Kbuild updates from Masahiro Yamada:

 - Avoid 'constexpr', which is a keyword in C23

 - Allow 'dtbs_check' and 'dt_compatible_check' run independently of
   'dt_binding_check'

 - Fix weak references to avoid GOT entries in position-independent code
   generation

 - Convert the last use of 'optional' property in arch/sh/Kconfig

 - Remove support for the 'optional' property in Kconfig

 - Remove support for Clang's ThinLTO caching, which does not work with
   the .incbin directive

 - Change the semantics of $(src) so it always points to the source
   directory, which fixes Makefile inconsistencies between upstream and
   downstream

 - Fix 'make tar-pkg' for RISC-V to produce a consistent package

 - Provide reasonable default coverage for objtool, sanitizers, and
   profilers

 - Remove redundant OBJECT_FILES_NON_STANDARD, KASAN_SANITIZE, etc.

 - Remove the last use of tristate choice in drivers/rapidio/Kconfig

 - Various cleanups and fixes in Kconfig

* tag 'kbuild-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (46 commits)
  kconfig: use sym_get_choice_menu() in sym_check_prop()
  rapidio: remove choice for enumeration
  kconfig: lxdialog: remove initialization with A_NORMAL
  kconfig: m/nconf: merge two item_add_str() calls
  kconfig: m/nconf: remove dead code to display value of bool choice
  kconfig: m/nconf: remove dead code to display children of choice members
  kconfig: gconf: show checkbox for choice correctly
  kbuild: use GCOV_PROFILE and KCSAN_SANITIZE in scripts/Makefile.modfinal
  Makefile: remove redundant tool coverage variables
  kbuild: provide reasonable defaults for tool coverage
  modules: Drop the .export_symbol section from the final modules
  kconfig: use menu_list_for_each_sym() in sym_check_choice_deps()
  kconfig: use sym_get_choice_menu() in conf_write_defconfig()
  kconfig: add sym_get_choice_menu() helper
  kconfig: turn defaults and additional prompt for choice members into error
  kconfig: turn missing prompt for choice members into error
  kconfig: turn conf_choice() into void function
  kconfig: use linked list in sym_set_changed()
  kconfig: gconf: use MENU_CHANGED instead of SYMBOL_CHANGED
  kconfig: gconf: remove debug code
  ...
 2024-05-18 12:39:20 -07:00
Linus Torvalds
0cc6f45cec IOMMU Updates for Linux v6.10 
Including:
 
 	- Core:
 	  - IOMMU memory usage observability - This will make the memory used
 	    for IO page tables explicitly visible.
 	  - Simplify arch_setup_dma_ops()
 
 	- Intel VT-d:
 	  - Consolidate domain cache invalidation
 	  - Remove private data from page fault message
 	  - Allocate DMAR fault interrupts locally
 	  - Cleanup and refactoring
 
 	- ARM-SMMUv2:
 	  - Support for fault debugging hardware on Qualcomm implementations
 	  - Re-land support for the ->domain_alloc_paging() callback
 
 	- ARM-SMMUv3:
 	  - Improve handling of MSI allocation failure
 	  - Drop support for the "disable_bypass" cmdline option
 	  - Major rework of the CD creation code, following on directly from the
 	    STE rework merged last time around.
 	  - Add unit tests for the new STE/CD manipulation logic
 
 	- AMD-Vi:
 	  - Final part of SVA changes with generic IO page fault handling
 
 	- Renesas IPMMU:
 	  - Add support for R8A779H0 hardware
 
 	- A couple smaller fixes and updates across the sub-tree
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Merge tag 'iommu-updates-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu updates from Joerg Roedel:
 "Core:
   - IOMMU memory usage observability - This will make the memory used
     for IO page tables explicitly visible.
   - Simplify arch_setup_dma_ops()

  Intel VT-d:
   - Consolidate domain cache invalidation
   - Remove private data from page fault message
   - Allocate DMAR fault interrupts locally
   - Cleanup and refactoring

  ARM-SMMUv2:
   - Support for fault debugging hardware on Qualcomm implementations
   - Re-land support for the ->domain_alloc_paging() callback

  ARM-SMMUv3:
   - Improve handling of MSI allocation failure
   - Drop support for the "disable_bypass" cmdline option
   - Major rework of the CD creation code, following on directly from
     the STE rework merged last time around.
   - Add unit tests for the new STE/CD manipulation logic

  AMD-Vi:
   - Final part of SVA changes with generic IO page fault handling

  Renesas IPMMU:
   - Add support for R8A779H0 hardware

  ... and a couple smaller fixes and updates across the sub-tree"

* tag 'iommu-updates-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (80 commits)
  iommu/arm-smmu-v3: Make the kunit into a module
  arm64: Properly clean up iommu-dma remnants
  iommu/amd: Enable Guest Translation after reading IOMMU feature register
  iommu/vt-d: Decouple igfx_off from graphic identity mapping
  iommu/amd: Fix compilation error
  iommu/arm-smmu-v3: Add unit tests for arm_smmu_write_entry
  iommu/arm-smmu-v3: Build the whole CD in arm_smmu_make_s1_cd()
  iommu/arm-smmu-v3: Move the CD generation for SVA into a function
  iommu/arm-smmu-v3: Allocate the CD table entry in advance
  iommu/arm-smmu-v3: Make arm_smmu_alloc_cd_ptr()
  iommu/arm-smmu-v3: Consolidate clearing a CD table entry
  iommu/arm-smmu-v3: Move the CD generation for S1 domains into a function
  iommu/arm-smmu-v3: Make CD programming use arm_smmu_write_entry()
  iommu/arm-smmu-v3: Add an ops indirection to the STE code
  iommu/arm-smmu-qcom: Don't build debug features as a kernel module
  iommu/amd: Add SVA domain support
  iommu: Add ops->domain_alloc_sva()
  iommu/amd: Initial SVA support for AMD IOMMU
  iommu/amd: Add support for enable/disable IOPF
  iommu/amd: Add IO page fault notifier handler
  ...
 2024-05-18 10:55:13 -07:00
Linus Torvalds
f0cd69b8cc Random number generator updates for Linux 6.10-rc1. 
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Merge tag 'random-6.10-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random

Pull random number generator updates from Jason Donenfeld:

 - The vmgenid driver can now be bound using device tree, rather than
   just ACPI.

   The improvement, from Sudan Landge, lets Amazon's Firecracker VMM
   make use of the virtual device without having to expose an otherwise
   unused ACPI stack in their "micro VM".

* tag 'random-6.10-rc1-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/crng/random:
  virt: vmgenid: add support for devicetree bindings
  dt-bindings: rng: Add vmgenid support
  virt: vmgenid: change implementation to use a platform driver
 2024-05-18 10:51:35 -07:00
Linus Torvalds
2fc0e7892c Landlock updates for v6.10-rc1 
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Merge tag 'landlock-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "This brings ioctl control to Landlock, contributed by Günther Noack.
  This also adds him as a Landlock reviewer, and fixes an issue in the
  sample"

* tag 'landlock-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  MAINTAINERS: Add Günther Noack as Landlock reviewer
  fs/ioctl: Add a comment to keep the logic in sync with LSM policies
  MAINTAINERS: Notify Landlock maintainers about changes to fs/ioctl.c
  landlock: Document IOCTL support
  samples/landlock: Add support for LANDLOCK_ACCESS_FS_IOCTL_DEV
  selftests/landlock: Exhaustive test for the IOCTL allow-list
  selftests/landlock: Check IOCTL restrictions for named UNIX domain sockets
  selftests/landlock: Test IOCTLs on named pipes
  selftests/landlock: Test ioctl(2) and ftruncate(2) with open(O_PATH)
  selftests/landlock: Test IOCTL with memfds
  selftests/landlock: Test IOCTL support
  landlock: Add IOCTL access right for character and block devices
  samples/landlock: Fix incorrect free in populate_ruleset_net
 2024-05-18 10:48:07 -07:00
Linus Torvalds
89721e3038 net-accept-more-20240515 
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Merge tag 'net-accept-more-20240515' of git://git.kernel.dk/linux

Pull more io_uring updates from Jens Axboe:
 "This adds support for IORING_CQE_F_SOCK_NONEMPTY for io_uring accept
  requests.

  This is very similar to previous work that enabled the same hint for
  doing receives on sockets. By far the majority of the work here is
  refactoring to enable the networking side to pass back whether or not
  the socket had more pending requests after accepting the current one,
  the last patch just wires it up for io_uring.

  Not only does this enable applications to know whether there are more
  connections to accept right now, it also enables smarter logic for
  io_uring multishot accept on whether to retry immediately or wait for
  a poll trigger"

* tag 'net-accept-more-20240515' of git://git.kernel.dk/linux:
  io_uring/net: wire up IORING_CQE_F_SOCK_NONEMPTY for accept
  net: pass back whether socket was empty post accept
  net: have do_accept() take a struct proto_accept_arg argument
  net: change proto and proto_ops accept type
 2024-05-18 10:32:39 -07:00
Linus Torvalds
4b377b4868 kprobe/ftrace: fix build error due to bad function definition 
Commit 1a7d0890dd ("kprobe/ftrace: bail out if ftrace was killed")
introduced a bad K&R function definition, which we haven't accepted in a
long long time.

Gcc seems to let it slide, but clang notices with the appropriate error:

  kernel/kprobes.c:1140:24: error: a function declaration without a prototype is deprecated in all >
   1140 | void kprobe_ftrace_kill()
        |                        ^
        |                         void

but this commit was apparently never in linux-next before it was sent
upstream, so it didn't get the appropriate build test coverage.

Fixes: 1a7d0890dd kprobe/ftrace: bail out if ftrace was killed
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Cc: Masami Hiramatsu (Google) <mhiramat@kernel.org>
Cc: Guo Ren <guoren@kernel.org>
Cc: Steven Rostedt (Google) <rostedt@goodmis.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
 2024-05-17 19:17:55 -07:00
Linus Torvalds
f08a1e912d Including fix from Andrii for the issue mentioned in our net-next PR, 
the rest is unremarkable.
 
 Current release - regressions:
 
  - virtio_net: fix missed error path rtnl_unlock after control queue
    locking rework
 
 Current release - new code bugs:
 
  - bpf: fix KASAN slab-out-of-bounds in percpu_array_map_gen_lookup,
    caused by missing nested map handling
 
  - drv: dsa: correct initialization order for KSZ88x3 ports
 
 Previous releases - regressions:
 
  - af_packet: do not call packet_read_pending() from tpacket_destruct_skb()
    fix performance regression
 
  - ipv6: fix route deleting failure when metric equals 0, don't assume
    0 means not set / default in this case
 
 Previous releases - always broken:
 
  - bridge: couple of syzbot-driven fixes
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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Merge tag 'net-6.10-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Jakub Kicinski:
 "Current release - regressions:

   - virtio_net: fix missed error path rtnl_unlock after control queue
     locking rework

  Current release - new code bugs:

   - bpf: fix KASAN slab-out-of-bounds in percpu_array_map_gen_lookup,
     caused by missing nested map handling

   - drv: dsa: correct initialization order for KSZ88x3 ports

  Previous releases - regressions:

   - af_packet: do not call packet_read_pending() from
     tpacket_destruct_skb() fix performance regression

   - ipv6: fix route deleting failure when metric equals 0, don't assume
     0 means not set / default in this case

  Previous releases - always broken:

   - bridge: couple of syzbot-driven fixes"

* tag 'net-6.10-rc0' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (30 commits)
  selftests: net: local_termination: annotate the expected failures
  net: dsa: microchip: Correct initialization order for KSZ88x3 ports
  MAINTAINERS: net: Update reviewers for TI's Ethernet drivers
  dt-bindings: net: ti: Update maintainers list
  l2tp: fix ICMP error handling for UDP-encap sockets
  net: txgbe: fix to control VLAN strip
  net: wangxun: match VLAN CTAG and STAG features
  net: wangxun: fix to change Rx features
  af_packet: do not call packet_read_pending() from tpacket_destruct_skb()
  virtio_net: Fix missed rtnl_unlock
  netrom: fix possible dead-lock in nr_rt_ioctl()
  idpf: don't skip over ethtool tcp-data-split setting
  dt-bindings: net: qcom: ethernet: Allow dma-coherent
  bonding: fix oops during rmmod
  net/ipv6: Fix route deleting failure when metric equals 0
  selftests/net: reduce xfrm_policy test time
  selftests/bpf: Adjust btf_dump test to reflect recent change in file_operations
  selftests/bpf: Adjust test_access_variable_array after a kernel function name change
  selftests/net/lib: no need to record ns name if it already exist
  net: qrtr: ns: Fix module refcnt
  ...
 2024-05-17 18:57:14 -07:00
Linus Torvalds
26aa834ff2 Specific for timerlat: 
- Improves the output of timerlat top by adding a missing \n,
   and by avoiding printing color-formatting characters where
   they are translated to regular characters.
 
 - Improves timerlat auto-analysis output by replacing '\t'
   with spaces to avoid copy-and-paste issues when reporting
   problems.
 
 - For timerlat, make the user-space (-u) option the default,
   as it is the most complete test. Add a -k option to use
   the in-kernel workload.
 
 - On timerlat top and hist, add a summary with the overall
   results. For instance, the minimum value for all CPUs,
   the overall average and the maximum value from all CPUs.
 
 - timerlat hist was printing initial values (i.e., 0 as max,
   and ~0 as min) if the trace stopped before the first Ret-User
   event. This problem was fixed by printing the "       - "
   no value string to the output if that was the case.
 
 For all RTLA tools:
 
 - Add a --warm-up <seconds> option, allowing the workload to
   run for <seconds> before starting to collect results.
 
 - Add a --trace-buffer-size option, allowing the user to set
   the tracing buffer size for -t option. This option is mainly
   useful for reducing the trace file. Now rtla depends on
   libtracefs >= 1.6.
 
 - Fix the -t [trace_file] parsing, now it does not require
   the '=' before the option parameter, and better handles the
   multiple ways a user can pass the trace_file.txt
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Merge tag 'trace-tools-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing tool updates from Steven Rostedt:
 "Specific for timerlat:

   - Improve the output of timerlat top by adding a missing \n, and by
     avoiding printing color-formatting characters where they are
     translated to regular characters.

   - Improve timerlat auto-analysis output by replacing '\t' with spaces
     to avoid copy-and-paste issues when reporting problems.

   - Make the user-space (-u) option the default, as it is the most
     complete test. Add a -k option to use the in-kernel workload.

   - On timerlat top and hist, add a summary with the overall results.
     For instance, the minimum value for all CPUs, the overall average
     and the maximum value from all CPUs.

   - timerlat hist was printing initial values (i.e., 0 as max, and ~0
     as min) if the trace stopped before the first Ret-User event. This
     problem was fixed by printing the " - " no value string to the
     output if that was the case.

  For all RTLA tools:

   - Add a --warm-up <seconds> option, allowing the workload to run for
     <seconds> before starting to collect results.

   - Add a --trace-buffer-size option, allowing the user to set the
     tracing buffer size for -t option. This option is mainly useful for
     reducing the trace file. Now rtla depends on libtracefs >= 1.6.

   - Fix the -t [trace_file] parsing, now it does not require the '='
     before the option parameter, and better handles the multiple ways a
     user can pass the trace_file.txt"

* tag 'trace-tools-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  rtla: Documentation: Fix -t, --trace
  rtla: Fix -t\--trace[=file]
  rtla/timerlat: Fix histogram report when a cpu count is 0
  rtla: Add --trace-buffer-size option
  rtla/timerlat: Make user-space threads the default
  rtla: Add the --warm-up option
  rtla/timerlat: Add a summary for hist mode
  rtla/timerlat: Add a summary for top mode
  rtla/timerlat: Use pretty formatting only on interactive tty
  rtla/auto-analysis: Replace \t with spaces
  rtla/timerlat: Simplify "no value" printing on top
 2024-05-17 18:49:18 -07:00
Linus Torvalds
fa3889d970 user-event updates for v6.10: 
- Minor update to the user_events interface
   The ABI of creating a user event states that the fields
   are separated by semicolons, and spaces should be ignored.
   But the parsing expected at least one space to be there (which was incorrect).
   Fix the reading of the string to handle fields separated by
   semicolons but no space between them.
 
   This does extend the API sightly as now "field;field" will now be
   parsed and not cause an error. But it should not cause any regressions
   as no logic should expect it to fail.
 
   Note, that the logic that parses the event fields to create the
   trace_event works with no spaces after the semi-colon. It is
   the logic that tests against existing events that is inconsistent.
   This causes registering an event without using spaces to succeed
   if it doesn't exist, but makes the same call that tries to register
   to the same event, but doesn't use spaces, fail.
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Merge tag 'trace-user-events-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing user-event updates from Steven Rostedt:

 - Minor update to the user_events interface

  The ABI of creating a user event states that the fields are separated
  by semicolons, and spaces should be ignored.

  But the parsing expected at least one space to be there (which was
  incorrect). Fix the reading of the string to handle fields separated
  by semicolons but no space between them.

  This does extend the API sightly as now "field;field" will now be
  parsed and not cause an error. But it should not cause any regressions
  as no logic should expect it to fail.

  Note, that the logic that parses the event fields to create the
  trace_event works with no spaces after the semi-colon. It is
  the logic that tests against existing events that is inconsistent.
  This causes registering an event without using spaces to succeed
  if it doesn't exist, but makes the same call that tries to register
  to the same event, but doesn't use spaces, fail.

* tag 'trace-user-events-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  selftests/user_events: Add non-spacing separator check
  tracing/user_events: Fix non-spaced field matching
 2024-05-17 18:46:30 -07:00
Linus Torvalds
53683e4080 tracing ring buffer updates for v6.10: 
- Add ring_buffer memory mappings
 
   The tracing ring buffer was created based on being mostly used with the
   splice system call. It is broken up into page ordered sub-buffers and the
   reader swaps a new sub-buffer with an existing sub-buffer that's part
   of the write buffer. It then has total access to the swapped out
   sub-buffer and can do copyless movements of the memory into other mediums
   (file system, network, etc).
 
   The buffer is great for passing around the ring buffer contents in the
   kernel, but is not so good for when the consumer is the user space task
   itself.
 
   A new interface is added that allows user space to memory map the ring
   buffer. It will get all the write sub-buffers as well as reader sub-buffer
   (that is not written to). It can send an ioctl to change which sub-buffer
   is the new reader sub-buffer.
 
   The ring buffer is read only to user space. It only needs to call the
   ioctl when it is finished with a sub-buffer and needs a new sub-buffer
   that the writer will not write over.
 
   A self test program was also created for testing and can be used as
   an example for the interface to user space. The libtracefs (external
   to the kernel) also has code that interacts with this, although it is
   disabled until the interface is in a official release. It can be enabled
   by compiling the library with a special flag. This was used for testing
   applications that perform better with the buffer being mapped.
 
   Memory mapped buffers have limitations. The main one is that it can not be
   used with the snapshot logic. If the buffer is mapped, snapshots will be
   disabled. If any logic is set to trigger snapshots on a buffer, that
   buffer will not be allowed to be mapped.
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Merge tag 'trace-ringbuffer-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing ring buffer updates from Steven Rostedt:
 "Add ring_buffer memory mappings.

  The tracing ring buffer was created based on being mostly used with
  the splice system call. It is broken up into page ordered sub-buffers
  and the reader swaps a new sub-buffer with an existing sub-buffer
  that's part of the write buffer. It then has total access to the
  swapped out sub-buffer and can do copyless movements of the memory
  into other mediums (file system, network, etc).

  The buffer is great for passing around the ring buffer contents in the
  kernel, but is not so good for when the consumer is the user space
  task itself.

  A new interface is added that allows user space to memory map the ring
  buffer. It will get all the write sub-buffers as well as reader
  sub-buffer (that is not written to). It can send an ioctl to change
  which sub-buffer is the new reader sub-buffer.

  The ring buffer is read only to user space. It only needs to call the
  ioctl when it is finished with a sub-buffer and needs a new sub-buffer
  that the writer will not write over.

  A self test program was also created for testing and can be used as an
  example for the interface to user space. The libtracefs (external to
  the kernel) also has code that interacts with this, although it is
  disabled until the interface is in a official release. It can be
  enabled by compiling the library with a special flag. This was used
  for testing applications that perform better with the buffer being
  mapped.

  Memory mapped buffers have limitations. The main one is that it can
  not be used with the snapshot logic. If the buffer is mapped,
  snapshots will be disabled. If any logic is set to trigger snapshots
  on a buffer, that buffer will not be allowed to be mapped"

* tag 'trace-ringbuffer-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  ring-buffer: Add cast to unsigned long addr passed to virt_to_page()
  ring-buffer: Have mmapped ring buffer keep track of missed events
  ring-buffer/selftest: Add ring-buffer mapping test
  Documentation: tracing: Add ring-buffer mapping
  tracing: Allow user-space mapping of the ring-buffer
  ring-buffer: Introducing ring-buffer mapping functions
  ring-buffer: Allocate sub-buffers with __GFP_COMP
 2024-05-17 18:40:37 -07:00
Linus Torvalds
594d28157f tracing cleanups for v6.10: 
- Removed unused ftrace_direct_funcs variables
 
 - Fix a possible NULL pointer dereference race in eventfs
 
 - Update do_div() usage in trace event benchmark test
 
 - Speedup direct function registration with asynchronous RCU callback.
   The synchronization was done in the registration code and this
   caused delays when registering direct callbacks. Move the freeing
   to a call_rcu() that will prevent delaying of the registering.
 
 - Replace simple_strtoul() usage with kstrtoul()
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Merge tag 'trace-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull tracing updates from Steven Rostedt:

 - Remove unused ftrace_direct_funcs variables

 - Fix a possible NULL pointer dereference race in eventfs

 - Update do_div() usage in trace event benchmark test

 - Speedup direct function registration with asynchronous RCU callback.

   The synchronization was done in the registration code and this caused
   delays when registering direct callbacks. Move the freeing to a
   call_rcu() that will prevent delaying of the registering.

 - Replace simple_strtoul() usage with kstrtoul()

* tag 'trace-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  eventfs: Fix a possible null pointer dereference in eventfs_find_events()
  ftrace: Fix possible use-after-free issue in ftrace_location()
  ftrace: Remove unused global 'ftrace_direct_func_count'
  ftrace: Remove unused list 'ftrace_direct_funcs'
  tracing: Improve benchmark test performance by using do_div()
  ftrace: Use asynchronous grace period for register_ftrace_direct()
  ftrace: Replaces simple_strtoul in ftrace
 2024-05-17 18:34:27 -07:00
Linus Torvalds
70a663205d Probes updates for v6.10: 
- tracing/probes: Adding new pseudo-types %pd and %pD support for dumping
   dentry name from 'struct dentry *' and file name from 'struct file *'.
 
 - uprobes: Some performance optimizations have been done.
  . Speed up the BPF uprobe event by delaying the fetching of the uprobe
    event arguments that are not used in BPF.
  . Avoid locking by speculatively checking whether uprobe event is valid.
  . Reduce lock contention by using read/write_lock instead of spinlock for
    uprobe list operation. This improved BPF uprobe benchmark result 43% on
    average.
 
 - rethook: Removes non-fatal warning messages when tracing stack from BPF
   and skip rcu_is_watching() validation in rethook if possible.
 
 - objpool: Optimizing objpool (which is used by kretprobes and fprobe as
   rethook backend storage) by inlining functions and avoid caching nr_cpu_ids
   because it is a const value.
 
 - fprobe: Add entry/exit callbacks types (code cleanup)
 - kprobes: Check ftrace was killed in kprobes if it uses ftrace.
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Merge tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:

 - tracing/probes: Add new pseudo-types %pd and %pD support for dumping
   dentry name from 'struct dentry *' and file name from 'struct file *'

 - uprobes performance optimizations:
    - Speed up the BPF uprobe event by delaying the fetching of the
      uprobe event arguments that are not used in BPF
    - Avoid locking by speculatively checking whether uprobe event is
      valid
    - Reduce lock contention by using read/write_lock instead of
      spinlock for uprobe list operation. This improved BPF uprobe
      benchmark result 43% on average

 - rethook: Remove non-fatal warning messages when tracing stack from
   BPF and skip rcu_is_watching() validation in rethook if possible

 - objpool: Optimize objpool (which is used by kretprobes and fprobe as
   rethook backend storage) by inlining functions and avoid caching
   nr_cpu_ids because it is a const value

 - fprobe: Add entry/exit callbacks types (code cleanup)

 - kprobes: Check ftrace was killed in kprobes if it uses ftrace

* tag 'probes-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  kprobe/ftrace: bail out if ftrace was killed
  selftests/ftrace: Fix required features for VFS type test case
  objpool: cache nr_possible_cpus() and avoid caching nr_cpu_ids
  objpool: enable inlining objpool_push() and objpool_pop() operations
  rethook: honor CONFIG_FTRACE_VALIDATE_RCU_IS_WATCHING in rethook_try_get()
  ftrace: make extra rcu_is_watching() validation check optional
  uprobes: reduce contention on uprobes_tree access
  rethook: Remove warning messages printed for finding return address of a frame.
  fprobe: Add entry/exit callbacks types
  selftests/ftrace: add fprobe test cases for VFS type "%pd" and "%pD"
  selftests/ftrace: add kprobe test cases for VFS type "%pd" and "%pD"
  Documentation: tracing: add new type '%pd' and '%pD' for kprobe
  tracing/probes: support '%pD' type for print struct file's name
  tracing/probes: support '%pd' type for print struct dentry's name
  uprobes: add speculative lockless system-wide uprobe filter check
  uprobes: prepare uprobe args buffer lazily
  uprobes: encapsulate preparation of uprobe args buffer
 2024-05-17 18:29:30 -07:00
Linus Torvalds
e9d6825180 Bootconfig updates for v6.10: 
- Do not put unneeded quotes on the extra command line items which was
   inserted from the bootconfig.
 - Remove redundant spaces from the extra command line.
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Merge tag 'bootconfig-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull bootconfig updates from Masami Hiramatsu:

 - Do not put unneeded quotes on the extra command line items which was
   inserted from the bootconfig.

 - Remove redundant spaces from the extra command line.

* tag 'bootconfig-v6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  init/main.c: Minor cleanup for the setup_command_line() function
  init/main.c: Remove redundant space from saved_command_line
  bootconfig: do not put quotes on cmdline items unless necessary
 2024-05-17 18:23:55 -07:00
Linus Torvalds
91b6163be4 sysctl changes for v6.10-rc1 
Summary
 * Removed sentinel elements from ctl_table structs in kernel/*
 
   Removing sentinels in ctl_table arrays reduces the build time size and
   runtime memory consumed by ~64 bytes per array. Removals for net/, io_uring/,
   mm/, ipc/ and security/ are set to go into mainline through their respective
   subsystems making the next release the most likely place where the final
   series that removes the check for proc_name == NULL will land. This PR adds
   to removals already in arch/, drivers/ and fs/.
 
 * Adjusted ctl_table definitions and references to allow constification
 
   Adjustments:
     - Removing unused ctl_table function arguments
     - Moving non-const elements from ctl_table to ctl_table_header
     - Making ctl_table pointers const in ctl_table_root structure
 
   Making the static ctl_table structs const will increase safety by keeping the
   pointers to proc_handler functions in .rodata. Though no ctl_tables where
   made const in this PR, the ground work for making that possible has started
   with these changes sent by Thomas Weißschuh.
 
 Testing
 * These changes went into linux-next after v6.9-rc4; giving it a good month of
   testing.
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Merge tag 'sysctl-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl

Pull sysctl updates from Joel Granados:

 - Remove sentinel elements from ctl_table structs in kernel/*

   Removing sentinels in ctl_table arrays reduces the build time size
   and runtime memory consumed by ~64 bytes per array. Removals for
   net/, io_uring/, mm/, ipc/ and security/ are set to go into mainline
   through their respective subsystems making the next release the most
   likely place where the final series that removes the check for
   proc_name == NULL will land.

   This adds to removals already in arch/, drivers/ and fs/.

 - Adjust ctl_table definitions and references to allow constification
     - Remove unused ctl_table function arguments
     - Move non-const elements from ctl_table to ctl_table_header
     - Make ctl_table pointers const in ctl_table_root structure

   Making the static ctl_table structs const will increase safety by
   keeping the pointers to proc_handler functions in .rodata. Though no
   ctl_tables where made const in this PR, the ground work for making
   that possible has started with these changes sent by Thomas
   Weißschuh.

* tag 'sysctl-6.10-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl:
  sysctl: drop now unnecessary out-of-bounds check
  sysctl: move sysctl type to ctl_table_header
  sysctl: drop sysctl_is_perm_empty_ctl_table
  sysctl: treewide: constify argument ctl_table_root::permissions(table)
  sysctl: treewide: drop unused argument ctl_table_root::set_ownership(table)
  bpf: Remove the now superfluous sentinel elements from ctl_table array
  delayacct: Remove the now superfluous sentinel elements from ctl_table array
  kprobes: Remove the now superfluous sentinel elements from ctl_table array
  printk: Remove the now superfluous sentinel elements from ctl_table array
  scheduler: Remove the now superfluous sentinel elements from ctl_table array
  seccomp: Remove the now superfluous sentinel elements from ctl_table array
  timekeeping: Remove the now superfluous sentinel elements from ctl_table array
  ftrace: Remove the now superfluous sentinel elements from ctl_table array
  umh: Remove the now superfluous sentinel elements from ctl_table array
  kernel misc: Remove the now superfluous sentinel elements from ctl_table array
 2024-05-17 17:31:24 -07:00
Linus Torvalds
06f054b1fe Devicetree for v6.10: 
DT Bindings:
 - Convert samsung,exynos5-dp, atmel,lcdc, aspeed,ast2400-wdt bindings to
   schemas
 
 - Add bindings for Allwinner H616 NMI controller, Renesas r8a779g0 irqc,
   Renesas R-Car V4M TMU and CMT timers, Freescale S32G3 linflexuart, and
   Mediatek MT7988 XHCI
 
 - Add 'reg' constraints on DSI and SPI display panels
 
 - More dropping of unnecessary quotes in schemas
 
 - Use full paths rather than relative paths in schema $refs
 
 - Drop redundant storing of phandle for reserved memory
 
 DT Core:
 - Use scope based cleanups for kfree() and of_node_put()
 
 - Track interrupt-map and power-supplies for fw_devlink
 
 - Add buffer overflow check in of_modalias()
 
 - Add and use __of_prop_free() helper for freeing struct property
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Merge tag 'devicetree-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Pull devicetree updates from Rob Herring:
 "DT Bindings:

   - Convert samsung,exynos5-dp, atmel,lcdc, aspeed,ast2400-wdt bindings
     to schemas

   - Add bindings for Allwinner H616 NMI controller, Renesas r8a779g0
     irqc, Renesas R-Car V4M TMU and CMT timers, Freescale S32G3
     linflexuart, and Mediatek MT7988 XHCI

   - Add 'reg' constraints on DSI and SPI display panels

   - More dropping of unnecessary quotes in schemas

   - Use full paths rather than relative paths in schema $refs

   - Drop redundant storing of phandle for reserved memory

  DT Core:

   - Use scope based cleanups for kfree() and of_node_put()

   - Track interrupt-map and power-supplies for fw_devlink

   - Add buffer overflow check in of_modalias()

   - Add and use __of_prop_free() helper for freeing struct property"

* tag 'devicetree-for-6.10' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (25 commits)
  of: property: Add fw_devlink support for interrupt-map property
  dt-bindings: display: panel: constrain 'reg' in DSI panels
  dt-bindings: display: panel: constrain 'reg' in SPI panels
  dt-bindings: display: samsung,ams495qa01: add missing SPI properties ref
  dt-bindings: Use full path to other schemas
  dt-bindings: PCI: qcom,pcie-sm8350: Drop redundant 'oneOf' sub-schema
  of: module: add buffer overflow check in of_modalias()
  dt-bindings: PCI: microchip: increase number of items in ranges property
  dt-bindings: Drop unnecessary quotes on keys
  dt-bindings: interrupt-controller: mediatek,mt6577-sysirq: Drop unnecessary quotes
  of: property: Use scope based cleanup on port_node
  of: reserved_mem: Remove the use of phandle from the reserved_mem APIs
  of: property: fw_devlink: Add support for "power-supplies" binding
  dt-bindings: watchdog: aspeed,ast2400-wdt: Convert to DT schema
  dt-bindings: irq: sun7i-nmi: Add binding for the H616 NMI controller
  dt-bindings: interrupt-controller: renesas,irqc: Add r8a779g0 support
  dt-bindings: timer: renesas,tmu: Add R-Car V4M support
  dt-bindings: timer: renesas,cmt: Add R-Car V4M support
  of: Use scope based of_node_put() cleanups
  of: Use scope based kfree() cleanups
  ...
 2024-05-17 17:27:49 -07:00
Jakub Kicinski
fe56d6e4a9 selftests: net: local_termination: annotate the expected failures 
Vladimir said when adding this test:

  The bridge driver fares particularly badly [...] mainly because
  it does not implement IFF_UNICAST_FLT.

See commit 90b9566aa5 ("selftests: forwarding: add a test for
local_termination.sh").

We don't want to hide the known gaps, but having a test which
always fails prevents us from catching regressions. Report
the cases we know may fail as XFAIL.

Reviewed-by: Simon Horman <horms@kernel.org>
Reviewed-by: Hangbin Liu <liuhangbin@gmail.com>
Reviewed-by: Petr Machata <petrm@nvidia.com>
Link: https://lore.kernel.org/r/20240516152513.1115270-1-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-05-17 12:26:35 -07:00
Oleksij Rempel
f0fa841164 net: dsa: microchip: Correct initialization order for KSZ88x3 ports 
Adjust the initialization sequence of KSZ88x3 switches to enable
802.1p priority control on Port 2 before configuring Port 1. This
change ensures the apptrust functionality on Port 1 operates
correctly, as it depends on the priority settings of Port 2. The
prior initialization sequence incorrectly configured Port 1 first,
which could lead to functional discrepancies.

Fixes: a1ea57710c ("net: dsa: microchip: dcb: add special handling for KSZ88X3 family")
Signed-off-by: Oleksij Rempel <o.rempel@pengutronix.de>
Reviewed-by: Hariprasad Kelam <hkelam@marvell.com>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Link: https://lore.kernel.org/r/20240517050121.2174412-1-o.rempel@pengutronix.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-05-17 12:25:22 -07:00
Ravi Gunasekaran
31279b0cb4 MAINTAINERS: net: Update reviewers for TI's Ethernet drivers 
Remove myself as reviewer for TI's ethernet drivers

Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Reviewed-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20240516082545.6412-1-r-gunasekaran@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-05-17 12:20:45 -07:00
Ravi Gunasekaran
ce08eeb59d dt-bindings: net: ti: Update maintainers list 
Update the list with the current maintainers of TI's CPSW ethernet
peripheral.

Signed-off-by: Ravi Gunasekaran <r-gunasekaran@ti.com>
Acked-by: Conor Dooley <conor.dooley@microchip.com>
Acked-by: Roger Quadros <rogerq@kernel.org>
Link: https://lore.kernel.org/r/20240516054932.27597-1-r-gunasekaran@ti.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-05-17 12:19:46 -07:00
Tom Parkin
6e828dc60e l2tp: fix ICMP error handling for UDP-encap sockets 
Since commit a36e185e8c
("udp: Handle ICMP errors for tunnels with same destination port on both endpoints")
UDP's handling of ICMP errors has allowed for UDP-encap tunnels to
determine socket associations in scenarios where the UDP hash lookup
could not.

Subsequently, commit d26796ae58
("udp: check udp sock encap_type in __udp_lib_err")
subtly tweaked the approach such that UDP ICMP error handling would be
skipped for any UDP socket which has encapsulation enabled.

In the case of L2TP tunnel sockets using UDP-encap, this latter
modification effectively broke ICMP error reporting for the L2TP
control plane.

To a degree this isn't catastrophic inasmuch as the L2TP control
protocol defines a reliable transport on top of the underlying packet
switching network which will eventually detect errors and time out.

However, paying attention to the ICMP error reporting allows for more
timely detection of errors in L2TP userspace, and aids in debugging
connectivity issues.

Reinstate ICMP error handling for UDP encap L2TP tunnels:

 * implement struct udp_tunnel_sock_cfg .encap_err_rcv in order to allow
   the L2TP code to handle ICMP errors;

 * only implement error-handling for tunnels which have a managed
   socket: unmanaged tunnels using a kernel socket have no userspace to
   report errors back to;

 * flag the error on the socket, which allows for userspace to get an
   error such as -ECONNREFUSED back from sendmsg/recvmsg;

 * pass the error into ip[v6]_icmp_error() which allows for userspace to
   get extended error information via. MSG_ERRQUEUE.

Fixes: d26796ae58 ("udp: check udp sock encap_type in __udp_lib_err")
Signed-off-by: Tom Parkin <tparkin@katalix.com>
Link: https://lore.kernel.org/r/20240513172248.623261-1-tparkin@katalix.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
 2024-05-17 12:15:22 -07:00
Linus Torvalds
7ee332c9f1 parisc architecture fixes and updates for kernel v6.10-rc1: 
- Define sigset_t in parisc uapi header to fix build of util-linux
 - Define HAVE_ARCH_HUGETLB_UNMAPPED_AREA to avoid compiler warning
 - Drop unused 'exc_reg' struct in math-emu code
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Merge tag 'parisc-for-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux

Pull parisc updates from Helge Deller:

 -  define sigset_t in parisc uapi header to fix build of util-linux

 -  define HAVE_ARCH_HUGETLB_UNMAPPED_AREA to avoid compiler warning

 -  drop unused 'exc_reg' struct in math-emu code

* tag 'parisc-for-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: Define HAVE_ARCH_HUGETLB_UNMAPPED_AREA
  parisc/math-emu: Remove unused struct 'exc_reg'
  parisc: Define sigset_t in parisc uapi header
 2024-05-17 11:59:09 -07:00
Linus Torvalds
ff2632d7d0 powerpc updates for 6.10 
- Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT.
 
  - Allow per-process DEXCR (Dynamic Execution Control Register) settings via
    prctl, notably NPHIE which controls hashst/hashchk for ROP protection.
 
  - Install powerpc selftests in sub-directories. Note this changes the way
    run_kselftest.sh needs to be invoked for powerpc selftests.
 
  - Change fadump (Firmware Assisted Dump) to better handle memory add/remove.
 
  - Add support for passing additional parameters to the fadump kernel.
 
  - Add support for updating the kdump image on CPU/memory add/remove events.
 
  - Other small features, cleanups and fixes.
 
 Thanks to: Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd Bergmann,
 Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe Jaillet, Christophe
 Leroy, Colin Ian King, Cédric Le Goater, Dr. David Alan Gilbert, Erhard Furtner,
 Frank Li, GUO Zihua, Ganesh Goudar, Geoff Levand, Ghanshyam Agrawal, Greg Kurz,
 Hari Bathini, Joel Stanley, Justin Stitt, Kunwu Chan, Li Yang, Lidong Zhong,
 Madhavan Srinivasan, Mahesh Salgaonkar, Masahiro Yamada, Matthias Schiffer,
 Naresh Kamboju, Nathan Chancellor, Nathan Lynch, Naveen N Rao, Nicholas
 Miehlbradt, Ran Wang, Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta,
 Shrikanth Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav
 Jain, Xiaowei Bao, Yang Li, Zhao Chenhui.
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Merge tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux

Pull powerpc updates from Michael Ellerman:

 - Enable BPF Kernel Functions (kfuncs) in the powerpc BPF JIT.

 - Allow per-process DEXCR (Dynamic Execution Control Register) settings
   via prctl, notably NPHIE which controls hashst/hashchk for ROP
   protection.

 - Install powerpc selftests in sub-directories. Note this changes the
   way run_kselftest.sh needs to be invoked for powerpc selftests.

 - Change fadump (Firmware Assisted Dump) to better handle memory
   add/remove.

 - Add support for passing additional parameters to the fadump kernel.

 - Add support for updating the kdump image on CPU/memory add/remove
   events.

 - Other small features, cleanups and fixes.

Thanks to Andrew Donnellan, Andy Shevchenko, Aneesh Kumar K.V, Arnd
Bergmann, Benjamin Gray, Bjorn Helgaas, Christian Zigotzky, Christophe
Jaillet, Christophe Leroy, Colin Ian King, Cédric Le Goater, Dr. David
Alan Gilbert, Erhard Furtner, Frank Li, GUO Zihua, Ganesh Goudar, Geoff
Levand, Ghanshyam Agrawal, Greg Kurz, Hari Bathini, Joel Stanley, Justin
Stitt, Kunwu Chan, Li Yang, Lidong Zhong, Madhavan Srinivasan, Mahesh
Salgaonkar, Masahiro Yamada, Matthias Schiffer, Naresh Kamboju, Nathan
Chancellor, Nathan Lynch, Naveen N Rao, Nicholas Miehlbradt, Ran Wang,
Randy Dunlap, Ritesh Harjani, Sachin Sant, Shirisha Ganta, Shrikanth
Hegde, Sourabh Jain, Stephen Rothwell, sundar, Thorsten Blum, Vaibhav
Jain, Xiaowei Bao, Yang Li, and Zhao Chenhui.

* tag 'powerpc-6.10-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (85 commits)
  powerpc/fadump: Fix section mismatch warning
  powerpc/85xx: fix compile error without CONFIG_CRASH_DUMP
  powerpc/fadump: update documentation about bootargs_append
  powerpc/fadump: pass additional parameters when fadump is active
  powerpc/fadump: setup additional parameters for dump capture kernel
  powerpc/pseries/fadump: add support for multiple boot memory regions
  selftests/powerpc/dexcr: Fix spelling mistake "predicition" -> "prediction"
  KVM: PPC: Book3S HV nestedv2: Fix an error handling path in gs_msg_ops_kvmhv_nestedv2_config_fill_info()
  KVM: PPC: Fix documentation for ppc mmu caps
  KVM: PPC: code cleanup for kvmppc_book3s_irqprio_deliver
  KVM: PPC: Book3S HV nestedv2: Cancel pending DEC exception
  powerpc/xmon: Check cpu id in commands "c#", "dp#" and "dx#"
  powerpc/code-patching: Use dedicated memory routines for patching
  powerpc/code-patching: Test patch_instructions() during boot
  powerpc64/kasan: Pass virtual addresses to kasan_init_phys_region()
  powerpc: rename SPRN_HID2 define to SPRN_HID2_750FX
  powerpc: Fix typos
  powerpc/eeh: Fix spelling of the word "auxillary" and update comment
  macintosh/ams: Fix unused variable warning
  powerpc/Makefile: Remove bits related to the previous use of -mcmodel=large
  ...
 2024-05-17 09:05:46 -07:00
Linus Torvalds
4853f1f6ac ARM development updates for v6.10-rc1 
- Updates to AMBA bus subsystem to drop .owner struct device_driver
   initialisations, moving that to code instead.
 - Add LPAE privileged-access-never support
 - Add support for Clang CFI
 - clkdev: report over-sized device or connection strings
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

Pull ARM updates from Russell King:

 - Updates to AMBA bus subsystem to drop .owner struct device_driver
   initialisations, moving that to code instead.

 - Add LPAE privileged-access-never support

 - Add support for Clang CFI

 - clkdev: report over-sized device or connection strings

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: (36 commits)
  ARM: 9398/1: Fix userspace enter on LPAE with CC_OPTIMIZE_FOR_SIZE=y
  clkdev: report over-sized strings when creating clkdev entries
  ARM: 9393/1: mm: Use conditionals for CFI branches
  ARM: 9392/2: Support CLANG CFI
  ARM: 9391/2: hw_breakpoint: Handle CFI breakpoints
  ARM: 9390/2: lib: Annotate loop delay instructions for CFI
  ARM: 9389/2: mm: Define prototypes for all per-processor calls
  ARM: 9388/2: mm: Type-annotate all per-processor assembly routines
  ARM: 9387/2: mm: Rewrite cacheflush vtables in CFI safe C
  ARM: 9386/2: mm: Use symbol alias for cache functions
  ARM: 9385/2: mm: Type-annotate all cache assembly routines
  ARM: 9384/2: mm: Make tlbflush routines CFI safe
  ARM: 9382/1: ftrace: Define ftrace_stub_graph
  ARM: 9358/2: Implement PAN for LPAE by TTBR0 page table walks disablement
  ARM: 9357/2: Reduce the number of #ifdef CONFIG_CPU_SW_DOMAIN_PAN
  ARM: 9356/2: Move asm statements accessing TTBCR into C functions
  ARM: 9355/2: Add TTBCR_* definitions to pgtable-3level-hwdef.h
  ARM: 9379/1: coresight: tpda: drop owner assignment
  ARM: 9378/1: coresight: etm4x: drop owner assignment
  ARM: 9377/1: hwrng: nomadik: drop owner assignment
  ...
 2024-05-17 08:53:47 -07:00
Dan Carpenter
c6a6c9694a ext4: fix error pointer dereference in ext4_mb_load_buddy_gfp() 
This code calls folio_put() on an error pointer which will lead to a
crash.  Check for both error pointers and NULL pointers before calling
folio_put().

Fixes: 5eea586b47 ("ext4: convert bd_buddy_page to bd_buddy_folio")
Signed-off-by: Dan Carpenter <dan.carpenter@linaro.org>
Link: https://lore.kernel.org/r/eaafa1d9-a61c-4af4-9f97-d3ad72c60200@moroto.mountain
Signed-off-by: Theodore Ts'o <tytso@mit.edu>
 2024-05-17 11:24:38 -04:00
David S. Miller
f6f25eebe0 Merge branch 'wangxun-fixes' 
Jiawen Wu says:

====================
Wangxun fixes

Fixed some bugs when using ethtool to operate network devices.

v4 -> v5:
- Simplify if...else... to fix features.

v3 -> v4:
- Require both ctag and stag to be enabled or disabled.

v2 -> v3:
- Drop the first patch.

v1 -> v2:
- Factor out the same code.
- Remove statistics printing with more than 64 queues.
- Detail the commit logs to describe issues.
- Remove reset flag check in wx_update_stats().
- Change to set VLAN CTAG and STAG to be consistent.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-05-17 10:17:36 +01:00
Jiawen Wu
1d3c641495 net: txgbe: fix to control VLAN strip 
When VLAN tag strip is changed to enable or disable, the hardware requires
the Rx ring to be in a disabled state, otherwise the feature cannot be
changed.

Fixes: f3b03c655f ("net: wangxun: Implement vlan add and kill functions")
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-05-17 10:17:36 +01:00
Jiawen Wu
ac71ab7816 net: wangxun: match VLAN CTAG and STAG features 
Hardware requires VLAN CTAG and STAG configuration always matches. And
whether VLAN CTAG or STAG changes, the configuration needs to be changed
as well.

Fixes: 6670f1ece2 ("net: txgbe: Add netdev features support")
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Sai Krishna <saikrishnag@marvell.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-05-17 10:17:36 +01:00
Jiawen Wu
68067f065e net: wangxun: fix to change Rx features 
Fix the issue where some Rx features cannot be changed.

When using ethtool -K to turn off rx offload, it returns error and
displays "Could not change any device features". And netdev->features
is not assigned a new value to actually configure the hardware.

Fixes: 6dbedcffcf ("net: libwx: Implement xx_set_features ops")
Signed-off-by: Jiawen Wu <jiawenwu@trustnetic.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
 2024-05-17 10:17:36 +01:00
Cheng Yu
49217ea147 sched/core: Fix incorrect initialization of the 'burst' parameter in cpu_max_write() 
In the cgroup v2 CPU subsystem, assuming we have a
cgroup named 'test', and we set cpu.max and cpu.max.burst:

    # echo 1000000 > /sys/fs/cgroup/test/cpu.max
    # echo 1000000 > /sys/fs/cgroup/test/cpu.max.burst

then we check cpu.max and cpu.max.burst:

    # cat /sys/fs/cgroup/test/cpu.max
    1000000 100000
    # cat /sys/fs/cgroup/test/cpu.max.burst
    1000000

Next we set cpu.max again and check cpu.max and
cpu.max.burst:

    # echo 2000000 > /sys/fs/cgroup/test/cpu.max
    # cat /sys/fs/cgroup/test/cpu.max
    2000000 100000

    # cat /sys/fs/cgroup/test/cpu.max.burst
    1000

... we find that the cpu.max.burst value changed unexpectedly.

In cpu_max_write(), the unit of the burst value returned
by tg_get_cfs_burst() is microseconds, while in cpu_max_write(),
the burst unit used for calculation should be nanoseconds,
which leads to the bug.

To fix it, get the burst value directly from tg->cfs_bandwidth.burst.

Fixes: f4183717b3 ("sched/fair: Introduce the burstable CFS controller")
Reported-by: Qixin Liao <liaoqixin@huawei.com>
Signed-off-by: Cheng Yu <serein.chengyu@huawei.com>
Signed-off-by: Zhang Qiao <zhangqiao22@huawei.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Tested-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/20240424132438.514720-1-serein.chengyu@huawei.com
 2024-05-17 09:53:54 +02:00
Christian Loehle
7cb7fb5b49 sched/fair: Remove stale FREQUENCY_UTIL comment 
On 05/03/2024 15:05, Vincent Guittot wrote:

I'm fine with either and that was my first thought here, too, but it did seem like
the comment was mostly placed there to justify the 'unexpected' high utilization
when explicitly passing FREQUENCY_UTIL and the need to clamp it then.
So removing did feel slightly more natural to me anyway.

So alternatively:

From: Christian Loehle <christian.loehle@arm.com>
Date: Tue, 5 Mar 2024 09:34:41 +0000
Subject: [PATCH] sched/fair: Remove stale FREQUENCY_UTIL mention

effective_cpu_util() flags were removed, so remove mentioning of the
flag.

commit 9c0b4bb7f6 ("sched/cpufreq: Rework schedutil governor performance estimation")
reworked effective_cpu_util() removing enum cpu_util_type. Modify the
comment accordingly.

Signed-off-by: Christian Loehle <christian.loehle@arm.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/0e2833ee-0939-44e0-82a2-520a585a0153@arm.com
 2024-05-17 09:51:54 +02:00
Dawei Li
72bffbf57c sched/fair: Fix initial util_avg calculation 
Change se->load.weight to se_weight(se) in the calculation for the
initial util_avg to avoid unnecessarily inflating the util_avg by 1024
times.

The reason is that se->load.weight has the unit/scale as the scaled-up
load, while cfs_rg->avg.load_avg has the unit/scale as the true task
weight (as mapped directly from the task's nice/priority value). With
CONFIG_32BIT, the scaled-up load is equal to the true task weight. With
CONFIG_64BIT, the scaled-up load is 1024 times the true task weight.
Thus, the current code may inflate the util_avg by 1024 times. The
follow-up capping will not allow the util_avg value to go wild. But the
calculation should have the correct logic.

Signed-off-by: Dawei Li <daweilics@gmail.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Vishal Chourasia <vishalc@linux.ibm.com>
Link: https://lore.kernel.org/r/20240315015916.21545-1-daweilics@gmail.com
 2024-05-17 09:49:44 +02:00
Vitalii Bursov
0f1c74befa docs: cgroup-v1: Clarify that domain levels are system-specific 
Add a clarification that domain levels are system-specific
and where to check for system details.

Signed-off-by: Vitalii Bursov <vitaly@bursov.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Link: https://lore.kernel.org/r/42b177a2e897cdf880caf9c2025f5b609e820334.1714488502.git.vitaly@bursov.com
 2024-05-17 09:48:25 +02:00
Vitalii Bursov
287372fa39 sched/debug: Dump domains' level 
Knowing domain's level exactly can be useful when setting
relax_domain_level or cpuset.sched_relax_domain_level

Usage:

  cat /debug/sched/domains/cpu0/domain1/level

to dump cpu0 domain1's level.

SDM macro is not used because sd->level is 'int' and
it would hide the type mismatch between 'int' and 'u32'.

Signed-off-by: Vitalii Bursov <vitaly@bursov.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Acked-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Link: https://lore.kernel.org/r/9489b6475f6dd6fbc67c617752d4216fa094da53.1714488502.git.vitaly@bursov.com
 2024-05-17 09:48:25 +02:00
Vitalii Bursov
a1fd0b9d75 sched/fair: Allow disabling sched_balance_newidle with sched_relax_domain_level 
Change relax_domain_level checks so that it would be possible
to include or exclude all domains from newidle balancing.

This matches the behavior described in the documentation:

  -1   no request. use system default or follow request of others.
   0   no search.
   1   search siblings (hyperthreads in a core).

"2" enables levels 0 and 1, level_max excludes the last (level_max)
level, and level_max+1 includes all levels.

Fixes: 1d3504fcf5 ("sched, cpuset: customize sched domains, core")
Signed-off-by: Vitalii Bursov <vitaly@bursov.com>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Tested-by: Dietmar Eggemann <dietmar.eggemann@arm.com>
Reviewed-by: Vincent Guittot <vincent.guittot@linaro.org>
Reviewed-by: Valentin Schneider <vschneid@redhat.com>
Link: https://lore.kernel.org/r/bd6de28e80073c79466ec6401cdeae78f0d4423d.1714488502.git.vitaly@bursov.com
 2024-05-17 09:48:24 +02:00
Borislav Petkov (AMD)
9dba9c67e5 x86/alternatives: Use the correct length when optimizing NOPs 
Commit in Fixes moved the optimize_nops() call inside apply_relocation()
and made it a second optimization pass after the relocations have been
done.

Since optimize_nops() works only on NOPs, that is fine and it'll simply
jump over instructions which are not NOPs.

However, it made that call with repl_len as the buffer length to
optimize.

However, it can happen that there are alternatives calls like this one:

  alternative("mfence; lfence", "", ALT_NOT(X86_FEATURE_APIC_MSRS_FENCE));

where the replacement length is 0. And using repl_len is wrong because
apply_alternatives() expands the buffer size to the length of the source
insn that is being patched, by padding it with one-byte NOPs:

	for (; insn_buff_sz < a->instrlen; insn_buff_sz++)
		insn_buff[insn_buff_sz] = 0x90;

Long story short: pass the length of the original instruction(s) as the
length of the temporary buffer which to optimize.

Result:

  SMP alternatives: feat: 11*32+27, old: (lapic_next_deadline+0x9/0x50 (ffffffff81061829) len: 6), repl: (ffffffff89b1cc60, len: 0) flags: 0x1
  SMP alternatives: ffffffff81061829:   old_insn: 0f ae f0 0f ae e8
  SMP alternatives: ffffffff81061829: final_insn: 90 90 90 90 90 90

=>

  SMP alternatives: feat: 11*32+27, old: (lapic_next_deadline+0x9/0x50 (ffffffff81061839) len: 6), repl: (ffffffff89b1cc60, len: 0) flags: 0x1
  SMP alternatives: ffffffff81061839: [0:6) optimized NOPs: 66 0f 1f 44 00 00
  SMP alternatives: ffffffff81061839:   old_insn: 0f ae f0 0f ae e8
  SMP alternatives: ffffffff81061839: final_insn: 66 0f 1f 44 00 00

Fixes: da8f9cf7e7 ("x86/alternatives: Get rid of __optimize_nops()")
Signed-off-by: Borislav Petkov (AMD) <bp@alien8.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Link: https://lore.kernel.org/r/20240515104804.32004-1-bp@kernel.org
 2024-05-17 09:27:06 +02:00