Commit Graph

43267 Commits

Author SHA1 Message Date
Thomas Gleixner
d44d26987b timekeeping: Remove CONFIG_DEBUG_TIMEKEEPING
Since 135225a363 timekeeping_cycles_to_ns() handles large offsets which
would lead to 64bit multiplication overflows correctly. It's also protected
against negative motion of the clocksource unconditionally, which was
exclusive to x86 before.

timekeeping_advance() handles large offsets already correctly.

That means the value of CONFIG_DEBUG_TIMEKEEPING which analyzed these cases
is very close to zero. Remove all of it.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Acked-by: John Stultz <jstultz@google.com>
Link: https://lore.kernel.org/all/20241031120328.536010148@linutronix.de
2024-11-02 10:14:31 +01:00
Linus Torvalds
e7ebdb5161 linux_kselftest-next-6.12-rc1-fixes
This kselftest fixes update for Linux 6.12-rc1 consists of an urgent
 fix to vDSO as automated testing is failing due to this bug.
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Merge tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

Pull kselftest fix from Shuah Khan:
 "One urgent fix to vDSO as automated testing is failing due to this
  bug"

* tag 'linux_kselftest-next-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest:
  selftests: vDSO: align stack for O2-optimized memcpy
2024-09-29 08:37:03 -07:00
Linus Torvalds
3efc57369a x86:
* KVM currently invalidates the entirety of the page tables, not just
   those for the memslot being touched, when a memslot is moved or deleted.
   The former does not have particularly noticeable overhead, but Intel's
   TDX will require the guest to re-accept private pages if they are
   dropped from the secure EPT, which is a non starter.  Actually,
   the only reason why this is not already being done is a bug which
   was never fully investigated and caused VM instability with assigned
   GeForce GPUs, so allow userspace to opt into the new behavior.
 
 * Advertise AVX10.1 to userspace (effectively prep work for the "real" AVX10
   functionality that is on the horizon).
 
 * Rework common MSR handling code to suppress errors on userspace accesses to
   unsupported-but-advertised MSRs.  This will allow removing (almost?) all of
   KVM's exemptions for userspace access to MSRs that shouldn't exist based on
   the vCPU model (the actual cleanup is non-trivial future work).
 
 * Rework KVM's handling of x2APIC ICR, again, because AMD (x2AVIC) splits the
   64-bit value into the legacy ICR and ICR2 storage, whereas Intel (APICv)
   stores the entire 64-bit value at the ICR offset.
 
 * Fix a bug where KVM would fail to exit to userspace if one was triggered by
   a fastpath exit handler.
 
 * Add fastpath handling of HLT VM-Exit to expedite re-entering the guest when
   there's already a pending wake event at the time of the exit.
 
 * Fix a WARN caused by RSM entering a nested guest from SMM with invalid guest
   state, by forcing the vCPU out of guest mode prior to signalling SHUTDOWN
   (the SHUTDOWN hits the VM altogether, not the nested guest)
 
 * Overhaul the "unprotect and retry" logic to more precisely identify cases
   where retrying is actually helpful, and to harden all retry paths against
   putting the guest into an infinite retry loop.
 
 * Add support for yielding, e.g. to honor NEED_RESCHED, when zapping rmaps in
   the shadow MMU.
 
 * Refactor pieces of the shadow MMU related to aging SPTEs in prepartion for
   adding multi generation LRU support in KVM.
 
 * Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is enabled,
   i.e. when the CPU has already flushed the RSB.
 
 * Trace the per-CPU host save area as a VMCB pointer to improve readability
   and cleanup the retrieval of the SEV-ES host save area.
 
 * Remove unnecessary accounting of temporary nested VMCB related allocations.
 
 * Set FINAL/PAGE in the page fault error code for EPT violations if and only
   if the GVA is valid.  If the GVA is NOT valid, there is no guest-side page
   table walk and so stuffing paging related metadata is nonsensical.
 
 * Fix a bug where KVM would incorrectly synthesize a nested VM-Exit instead of
   emulating posted interrupt delivery to L2.
 
 * Add a lockdep assertion to detect unsafe accesses of vmcs12 structures.
 
 * Harden eVMCS loading against an impossible NULL pointer deref (really truly
   should be impossible).
 
 * Minor SGX fix and a cleanup.
 
 * Misc cleanups
 
 Generic:
 
 * Register KVM's cpuhp and syscore callbacks when enabling virtualization in
   hardware, as the sole purpose of said callbacks is to disable and re-enable
   virtualization as needed.
 
 * Enable virtualization when KVM is loaded, not right before the first VM
   is created.  Together with the previous change, this simplifies a
   lot the logic of the callbacks, because their very existence implies
   virtualization is enabled.
 
 * Fix a bug that results in KVM prematurely exiting to userspace for coalesced
   MMIO/PIO in many cases, clean up the related code, and add a testcase.
 
 * Fix a bug in kvm_clear_guest() where it would trigger a buffer overflow _if_
   the gpa+len crosses a page boundary, which thankfully is guaranteed to not
   happen in the current code base.  Add WARNs in more helpers that read/write
   guest memory to detect similar bugs.
 
 Selftests:
 
 * Fix a goof that caused some Hyper-V tests to be skipped when run on bare
   metal, i.e. NOT in a VM.
 
 * Add a regression test for KVM's handling of SHUTDOWN for an SEV-ES guest.
 
 * Explicitly include one-off assets in .gitignore.  Past Sean was completely
   wrong about not being able to detect missing .gitignore entries.
 
 * Verify userspace single-stepping works when KVM happens to handle a VM-Exit
   in its fastpath.
 
 * Misc cleanups
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Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm

Pull x86 kvm updates from Paolo Bonzini:
 "x86:

   - KVM currently invalidates the entirety of the page tables, not just
     those for the memslot being touched, when a memslot is moved or
     deleted.

     This does not traditionally have particularly noticeable overhead,
     but Intel's TDX will require the guest to re-accept private pages
     if they are dropped from the secure EPT, which is a non starter.

     Actually, the only reason why this is not already being done is a
     bug which was never fully investigated and caused VM instability
     with assigned GeForce GPUs, so allow userspace to opt into the new
     behavior.

   - Advertise AVX10.1 to userspace (effectively prep work for the
     "real" AVX10 functionality that is on the horizon)

   - Rework common MSR handling code to suppress errors on userspace
     accesses to unsupported-but-advertised MSRs

     This will allow removing (almost?) all of KVM's exemptions for
     userspace access to MSRs that shouldn't exist based on the vCPU
     model (the actual cleanup is non-trivial future work)

   - Rework KVM's handling of x2APIC ICR, again, because AMD (x2AVIC)
     splits the 64-bit value into the legacy ICR and ICR2 storage,
     whereas Intel (APICv) stores the entire 64-bit value at the ICR
     offset

   - Fix a bug where KVM would fail to exit to userspace if one was
     triggered by a fastpath exit handler

   - Add fastpath handling of HLT VM-Exit to expedite re-entering the
     guest when there's already a pending wake event at the time of the
     exit

   - Fix a WARN caused by RSM entering a nested guest from SMM with
     invalid guest state, by forcing the vCPU out of guest mode prior to
     signalling SHUTDOWN (the SHUTDOWN hits the VM altogether, not the
     nested guest)

   - Overhaul the "unprotect and retry" logic to more precisely identify
     cases where retrying is actually helpful, and to harden all retry
     paths against putting the guest into an infinite retry loop

   - Add support for yielding, e.g. to honor NEED_RESCHED, when zapping
     rmaps in the shadow MMU

   - Refactor pieces of the shadow MMU related to aging SPTEs in
     prepartion for adding multi generation LRU support in KVM

   - Don't stuff the RSB after VM-Exit when RETPOLINE=y and AutoIBRS is
     enabled, i.e. when the CPU has already flushed the RSB

   - Trace the per-CPU host save area as a VMCB pointer to improve
     readability and cleanup the retrieval of the SEV-ES host save area

   - Remove unnecessary accounting of temporary nested VMCB related
     allocations

   - Set FINAL/PAGE in the page fault error code for EPT violations if
     and only if the GVA is valid. If the GVA is NOT valid, there is no
     guest-side page table walk and so stuffing paging related metadata
     is nonsensical

   - Fix a bug where KVM would incorrectly synthesize a nested VM-Exit
     instead of emulating posted interrupt delivery to L2

   - Add a lockdep assertion to detect unsafe accesses of vmcs12
     structures

   - Harden eVMCS loading against an impossible NULL pointer deref
     (really truly should be impossible)

   - Minor SGX fix and a cleanup

   - Misc cleanups

  Generic:

   - Register KVM's cpuhp and syscore callbacks when enabling
     virtualization in hardware, as the sole purpose of said callbacks
     is to disable and re-enable virtualization as needed

   - Enable virtualization when KVM is loaded, not right before the
     first VM is created

     Together with the previous change, this simplifies a lot the logic
     of the callbacks, because their very existence implies
     virtualization is enabled

   - Fix a bug that results in KVM prematurely exiting to userspace for
     coalesced MMIO/PIO in many cases, clean up the related code, and
     add a testcase

   - Fix a bug in kvm_clear_guest() where it would trigger a buffer
     overflow _if_ the gpa+len crosses a page boundary, which thankfully
     is guaranteed to not happen in the current code base. Add WARNs in
     more helpers that read/write guest memory to detect similar bugs

  Selftests:

   - Fix a goof that caused some Hyper-V tests to be skipped when run on
     bare metal, i.e. NOT in a VM

   - Add a regression test for KVM's handling of SHUTDOWN for an SEV-ES
     guest

   - Explicitly include one-off assets in .gitignore. Past Sean was
     completely wrong about not being able to detect missing .gitignore
     entries

   - Verify userspace single-stepping works when KVM happens to handle a
     VM-Exit in its fastpath

   - Misc cleanups"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (127 commits)
  Documentation: KVM: fix warning in "make htmldocs"
  s390: Enable KVM_S390_UCONTROL config in debug_defconfig
  selftests: kvm: s390: Add VM run test case
  KVM: SVM: let alternatives handle the cases when RSB filling is required
  KVM: VMX: Set PFERR_GUEST_{FINAL,PAGE}_MASK if and only if the GVA is valid
  KVM: x86/mmu: Use KVM_PAGES_PER_HPAGE() instead of an open coded equivalent
  KVM: x86/mmu: Add KVM_RMAP_MANY to replace open coded '1' and '1ul' literals
  KVM: x86/mmu: Fold mmu_spte_age() into kvm_rmap_age_gfn_range()
  KVM: x86/mmu: Morph kvm_handle_gfn_range() into an aging specific helper
  KVM: x86/mmu: Honor NEED_RESCHED when zapping rmaps and blocking is allowed
  KVM: x86/mmu: Add a helper to walk and zap rmaps for a memslot
  KVM: x86/mmu: Plumb a @can_yield parameter into __walk_slot_rmaps()
  KVM: x86/mmu: Move walk_slot_rmaps() up near for_each_slot_rmap_range()
  KVM: x86/mmu: WARN on MMIO cache hit when emulating write-protected gfn
  KVM: x86/mmu: Detect if unprotect will do anything based on invalid_list
  KVM: x86/mmu: Subsume kvm_mmu_unprotect_page() into the and_retry() version
  KVM: x86: Rename reexecute_instruction()=>kvm_unprotect_and_retry_on_failure()
  KVM: x86: Update retry protection fields when forcing retry on emulation failure
  KVM: x86: Apply retry protection to "unprotect on failure" path
  KVM: x86: Check EMULTYPE_WRITE_PF_TO_SP before unprotecting gfn
  ...
2024-09-28 09:20:14 -07:00
Linus Torvalds
e08d227840 more s390 updates for 6.12 merge window
- Clean up and improve vdso code: use SYM_* macros for function and
   data annotations, add CFI annotations to fix GDB unwinding, optimize
   the chacha20 implementation
 
 - Add vfio-ap driver feature advertisement for use by libvirt and mdevctl
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Merge tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux

Pull more s390 updates from Vasily Gorbik:

 - Clean up and improve vdso code: use SYM_* macros for function and
   data annotations, add CFI annotations to fix GDB unwinding, optimize
   the chacha20 implementation

 - Add vfio-ap driver feature advertisement for use by libvirt and
   mdevctl

* tag 's390-6.12-2' of git://git.kernel.org/pub/scm/linux/kernel/git/s390/linux:
  s390/vfio-ap: Driver feature advertisement
  s390/vdso: Use one large alternative instead of an alternative branch
  s390/vdso: Use SYM_DATA_START_LOCAL()/SYM_DATA_END() for data objects
  tools: Add additional SYM_*() stubs to linkage.h
  s390/vdso: Use macros for annotation of asm functions
  s390/vdso: Add CFI annotations to __arch_chacha20_blocks_nostack()
  s390/vdso: Fix comment within __arch_chacha20_blocks_nostack()
  s390/vdso: Get rid of permutation constants
2024-09-28 09:11:46 -07:00
Linus Torvalds
033af36def cxl changes for v6.12
Misc cleanups:
 - Convert devm_cxl_add_root() to return using ERR_CAST().
 - cxl_test use dev_is_platform() instead of open coding.
 - Remove duplicate include of header core.h in core/cdat.c.
 - use scoped resource management to drop put_device() for cxl_port
 - Use scoped_guard to drop device_lock() for cxl_port
 - Refactor __devm_cxl_add_port() to drop gotos
 - Rename cxl_setup_parent_dport to cxl_dport_init_aer and cxl_dport_map_regs()
   to cxl_dport_map_ras().
 - Refactor cxl_dport_init_aer() to be more concise.
 - Remove duplicate host_bridge->native_aer checking in cxl_dport_init_ras_reporting().
 - Fix comment for cxl_query_cmd()
 
 Series to address HDM decoder initialization from DVSEC ranges:
 - Only register non-zero DVSEC ranges.
 - Remove duplicate implementation of waiting for memory_info_valid.
 - Simplify the checking of mem_enabled in  cxl_hdm_decode_init().
 
 Remove locking from memory notifier callback
 
 Series that refactors the code related to cxl mailboxes to be independent of the memory devices
 - Move cxl headers in include/linux/ to include/cxl.
 - Move all mailbox related data to 'struct cxl_mailbox'.
 - Refactor mailbox APIs with 'struct cxl_mailbox' as input instead of memory device state.
 
 Series that adds support for shared upstream link access_coordinate calculation for
 configurations that have multiple targets under a switch or a root port where the
 aggregated bandwidth can be greater than the upstream link of the switch/RP upstream
 link.
 - Preserve the CDAT access_coordinate from an endpoint
 - Add the support for shared upstream link access_coordinate calculation
 - Add documentation to explain how the calculations are done.
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Merge tag 'cxl-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl

Pull compute express link (cxl) updates from Dave Jiang:
 "Major changes address HDM decoder initialization from DVSEC ranges,
  refactoring the code related to cxl mailboxes to be independent of the
  memory devices, and adding support for shared upstream link
  access_coordinate calculation, as well as a change to remove locking
  from memory notifier callback.

  In addition, a number of misc cleanups and refactoring of the code are
  also included.

  Address HDM decoder initialization from DVSEC ranges:
   - Only register non-zero DVSEC ranges
   - Remove duplicate implementation of waiting for memory_info_valid
   - Simplify the checking of mem_enabled in  cxl_hdm_decode_init()

  Refactor the code related to cxl mailboxes to be independent of the memory devices:
   - Move cxl headers in include/linux/ to include/cxl
   - Move all mailbox related data to 'struct cxl_mailbox'
   - Refactor mailbox APIs with 'struct cxl_mailbox' as input instead of
     memory device state

  Add support for shared upstream link access_coordinate calculation for
  configurations that have multiple targets under a switch or a root
  port where the aggregated bandwidth can be greater than the upstream
  link of the switch/RP upstream link:
   - Preserve the CDAT access_coordinate from an endpoint
   - Add the support for shared upstream link access_coordinate calculation
   - Add documentation to explain how the calculations are done

  Remove locking from memory notifier callback.

  Misc cleanups:
   - Convert devm_cxl_add_root() to return using ERR_CAST()
   - cxl_test use dev_is_platform() instead of open coding
   - Remove duplicate include of header core.h in core/cdat.c
   - use scoped resource management to drop put_device() for cxl_port
   - Use scoped_guard to drop device_lock() for cxl_port
   - Refactor __devm_cxl_add_port() to drop gotos
   - Rename cxl_setup_parent_dport to cxl_dport_init_aer and
     cxl_dport_map_regs() to cxl_dport_map_ras()
   - Refactor cxl_dport_init_aer() to be more concise
   - Remove duplicate host_bridge->native_aer checking in
     cxl_dport_init_ras_reporting()
   - Fix comment for cxl_query_cmd()"

* tag 'cxl-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cxl/cxl: (21 commits)
  cxl: Add documentation to explain the shared link bandwidth calculation
  cxl: Calculate region bandwidth of targets with shared upstream link
  cxl: Preserve the CDAT access_coordinate for an endpoint
  cxl: Fix comment regarding cxl_query_cmd() return data
  cxl: Convert cxl_internal_send_cmd() to use 'struct cxl_mailbox' as input
  cxl: Move mailbox related bits to the same context
  cxl: move cxl headers to new include/cxl/ directory
  cxl/region: Remove lock from memory notifier callback
  cxl/pci: simplify the check of mem_enabled in cxl_hdm_decode_init()
  cxl/pci: Check Mem_info_valid bit for each applicable DVSEC
  cxl/pci: Remove duplicated implementation of waiting for memory_info_valid
  cxl/pci: Fix to record only non-zero ranges
  cxl/pci: Remove duplicate host_bridge->native_aer checking
  cxl/pci: cxl_dport_map_rch_aer() cleanup
  cxl/pci: Rename cxl_setup_parent_dport() and cxl_dport_map_regs()
  cxl/port: Refactor __devm_cxl_add_port() to drop goto pattern
  cxl/port: Use scoped_guard()/guard() to drop device_lock() for cxl_port
  cxl/port: Use __free() to drop put_device() for cxl_port
  cxl: Remove duplicate included header file core.h
  tools/testing/cxl: Use dev_is_platform()
  ...
2024-09-27 11:42:03 -07:00
Jason A. Donenfeld
4b721fcc09 selftests: vDSO: align stack for O2-optimized memcpy
When switching on -O2, gcc generates SSE2 instructions that assume a
16-byte aligned stack, which the standalone test's start point wasn't
aligning. Fix this with the usual alignment sequence.

Fixes: ecb8bd70d5 ("selftests: vDSO: build tests with O2 optimization")
Reported-by: kernel test robot <oliver.sang@intel.com>
Closes: https://lore.kernel.org/oe-lkp/202409241558.98e13f6f-oliver.sang@intel.com
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-09-27 12:17:12 -06:00
Linus Torvalds
eee280841e 19 hotfixes. 13 are cc:stable.
There's a focus on fixes for the memfd_pin_folios() work which was added
 into 6.11.  Apart from that, the usual shower of singleton fixes.
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Merge tag 'mm-hotfixes-stable-2024-09-27-09-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull  misc fixes from Andrew Morton:
 "19 hotfixes.  13 are cc:stable.

  There's a focus on fixes for the memfd_pin_folios() work which was
  added into 6.11. Apart from that, the usual shower of singleton fixes"

* tag 'mm-hotfixes-stable-2024-09-27-09-45' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm:
  ocfs2: fix uninit-value in ocfs2_get_block()
  zram: don't free statically defined names
  memory tiers: use default_dram_perf_ref_source in log message
  Revert "list: test: fix tests for list_cut_position()"
  kselftests: mm: fix wrong __NR_userfaultfd value
  compiler.h: specify correct attribute for .rodata..c_jump_table
  mm/damon/Kconfig: update DAMON doc URL
  mm: kfence: fix elapsed time for allocated/freed track
  ocfs2: fix deadlock in ocfs2_get_system_file_inode
  ocfs2: reserve space for inline xattr before attaching reflink tree
  mm: migrate: annotate data-race in migrate_folio_unmap()
  mm/hugetlb: simplify refs in memfd_alloc_folio
  mm/gup: fix memfd_pin_folios alloc race panic
  mm/gup: fix memfd_pin_folios hugetlb page allocation
  mm/hugetlb: fix memfd_pin_folios resv_huge_pages leak
  mm/hugetlb: fix memfd_pin_folios free_huge_pages leak
  mm/filemap: fix filemap_get_folios_contig THP panic
  mm: make SPLIT_PTE_PTLOCKS depend on SMP
  tools: fix shared radix-tree build
2024-09-27 10:27:22 -07:00
Linus Torvalds
3630400697 LoongArch changes for v6.12
1, Fix objtool about do_syscall() and Clang;
 2, Enable generic CPU vulnerabilites support;
 3, Enable ACPI BGRT handling;
 4, Rework CPU feature probe from CPUCFG/IOCSR;
 5, Add ARCH_HAS_SET_MEMORY support;
 6, Add ARCH_HAS_SET_DIRECT_MAP support;
 7, Improve hardware page table walker;
 8, Simplify _percpu_read() and _percpu_write();
 9, Add advanced extended IRQ model documentions;
 10, Some bug fixes and other small changes.
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Merge tag 'loongarch-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Fix objtool about do_syscall() and Clang

 - Enable generic CPU vulnerabilites support

 - Enable ACPI BGRT handling

 - Rework CPU feature probe from CPUCFG/IOCSR

 - Add ARCH_HAS_SET_MEMORY support

 - Add ARCH_HAS_SET_DIRECT_MAP support

 - Improve hardware page table walker

 - Simplify _percpu_read() and _percpu_write()

 - Add advanced extended IRQ model documentions

 - Some bug fixes and other small changes

* tag 'loongarch-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  Docs/LoongArch: Add advanced extended IRQ model description
  LoongArch: Remove posix_types.h include from sigcontext.h
  LoongArch: Fix memleak in pci_acpi_scan_root()
  LoongArch: Simplify _percpu_read() and _percpu_write()
  LoongArch: Improve hardware page table walker
  LoongArch: Add ARCH_HAS_SET_DIRECT_MAP support
  LoongArch: Add ARCH_HAS_SET_MEMORY support
  LoongArch: Rework CPU feature probe from CPUCFG/IOCSR
  LoongArch: Enable ACPI BGRT handling
  LoongArch: Enable generic CPU vulnerabilites support
  LoongArch: Remove STACK_FRAME_NON_STANDARD(do_syscall)
  LoongArch: Set AS_HAS_THIN_ADD_SUB as y if AS_IS_LLVM
  LoongArch: Enable objtool for Clang
  objtool: Handle frame pointer related instructions
2024-09-27 10:14:35 -07:00
Muhammad Usama Anjum
f30beffd97 kselftests: mm: fix wrong __NR_userfaultfd value
grep -rnIF "#define __NR_userfaultfd"
tools/include/uapi/asm-generic/unistd.h:681:#define __NR_userfaultfd 282
arch/x86/include/generated/uapi/asm/unistd_32.h:374:#define
__NR_userfaultfd 374
arch/x86/include/generated/uapi/asm/unistd_64.h:327:#define
__NR_userfaultfd 323
arch/x86/include/generated/uapi/asm/unistd_x32.h:282:#define
__NR_userfaultfd (__X32_SYSCALL_BIT + 323)
arch/arm/include/generated/uapi/asm/unistd-eabi.h:347:#define
__NR_userfaultfd (__NR_SYSCALL_BASE + 388)
arch/arm/include/generated/uapi/asm/unistd-oabi.h:359:#define
__NR_userfaultfd (__NR_SYSCALL_BASE + 388)
include/uapi/asm-generic/unistd.h:681:#define __NR_userfaultfd 282

The number is dependent on the architecture. The above data shows that:
x86	374
x86_64	323

The value of __NR_userfaultfd was changed to 282 when asm-generic/unistd.h
was included.  It makes the test to fail every time as the correct number
of this syscall on x86_64 is 323.  Fix the header to asm/unistd.h.

Link: https://lkml.kernel.org/r/20240923053836.3270393-1-usama.anjum@collabora.com
Fixes: a5c6bc5900 ("selftests/mm: remove local __NR_* definitions")
Signed-off-by: Muhammad Usama Anjum <usama.anjum@collabora.com>
Reviewed-by: Shuah Khan <skhan@linuxfoundation.org>
Reviewed-by: David Hildenbrand <david@redhat.com>
Cc: John Hubbard <jhubbard@nvidia.com>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-09-26 14:01:44 -07:00
Lorenzo Stoakes
c234c65340 tools: fix shared radix-tree build
The shared radix-tree build is not correctly recompiling when
lib/maple_tree.c and lib/test_maple_tree.c are modified - fix this by
adding these core components to the SHARED_DEPS list.

Additionally, add missing header guards to shared header files.

Link: https://lkml.kernel.org/r/20240924180724.112169-1-lorenzo.stoakes@oracle.com
Fixes: 74579d8dab ("tools: separate out shared radix-tree components")
Signed-off-by: Lorenzo Stoakes <lorenzo.stoakes@oracle.com>
Tested-by: Sidhartha Kumar <sidhartha.kumar@oracle.com>
Cc: "Liam R. Howlett" <Liam.Howlett@oracle.com>
Cc: Matthew Wilcox <willy@infradead.org>
Cc: Vlastimil Babka <vbabka@suse.cz>
Cc: <stable@vger.kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2024-09-26 14:01:43 -07:00
Linus Torvalds
62a0e2fa40 Including fixes from netfilter.
Previous releases - regressions:
 
   - netfilter:
     - nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
     - nf_tables: keep deleted flowtable hooks until after RCU
 
   - tcp: check skb is non-NULL in tcp_rto_delta_us()
 
   - phy: aquantia: fix -ETIMEDOUT PHY probe failure when firmware not present
 
   - eth: virtio_net: fix mismatched buf address when unmapping for small packets
 
   - eth: stmmac: fix zero-division error when disabling tc cbs
 
   - eth: bonding: fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()
 
 Previous releases - always broken:
 
   - netfilter:
     - fix clash resolution for bidirectional flows
     - fix allocation with no memcg accounting
 
   - eth: r8169: add tally counter fields added with RTL8125
 
   - eth: ravb: fix rx and tx frame size limit
 
 Signed-off-by: Paolo Abeni <pabeni@redhat.com>
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Merge tag 'net-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net

Pull networking fixes from Paolo Abeni:
 "Including fixes from netfilter.

  It looks like that most people are still traveling: both the ML volume
  and the processing capacity are low.

  Previous releases - regressions:

    - netfilter:
        - nf_reject_ipv6: fix nf_reject_ip6_tcphdr_put()
        - nf_tables: keep deleted flowtable hooks until after RCU

    - tcp: check skb is non-NULL in tcp_rto_delta_us()

    - phy: aquantia: fix -ETIMEDOUT PHY probe failure when firmware not
      present

    - eth: virtio_net: fix mismatched buf address when unmapping for
      small packets

    - eth: stmmac: fix zero-division error when disabling tc cbs

    - eth: bonding: fix unnecessary warnings and logs from
      bond_xdp_get_xmit_slave()

  Previous releases - always broken:

    - netfilter:
        - fix clash resolution for bidirectional flows
        - fix allocation with no memcg accounting

    - eth: r8169: add tally counter fields added with RTL8125

    - eth: ravb: fix rx and tx frame size limit"

* tag 'net-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (35 commits)
  selftests: netfilter: Avoid hanging ipvs.sh
  kselftest: add test for nfqueue induced conntrack race
  netfilter: nfnetlink_queue: remove old clash resolution logic
  netfilter: nf_tables: missing objects with no memcg accounting
  netfilter: nf_tables: use rcu chain hook list iterator from netlink dump path
  netfilter: ctnetlink: compile ctnetlink_label_size with CONFIG_NF_CONNTRACK_EVENTS
  netfilter: nf_reject: Fix build warning when CONFIG_BRIDGE_NETFILTER=n
  netfilter: nf_tables: Keep deleted flowtable hooks until after RCU
  docs: tproxy: ignore non-transparent sockets in iptables
  netfilter: ctnetlink: Guard possible unused functions
  selftests: netfilter: nft_tproxy.sh: add tcp tests
  selftests: netfilter: add reverse-clash resolution test case
  netfilter: conntrack: add clash resolution for reverse collisions
  netfilter: nf_nat: don't try nat source port reallocation for reverse dir clash
  selftests/net: packetdrill: increase timing tolerance in debug mode
  usbnet: fix cyclical race on disconnect with work queue
  net: stmmac: set PP_FLAG_DMA_SYNC_DEV only if XDP is enabled
  virtio_net: Fix mismatched buf address when unmapping for small packets
  bonding: Fix unnecessary warnings and logs from bond_xdp_get_xmit_slave()
  r8169: add missing MODULE_FIRMWARE entry for RTL8126A rev.b
  ...
2024-09-26 10:27:10 -07:00
Linus Torvalds
5e5466433d Char/Misc and other driver changes for 6.12-rc1
Here is the "big" set of char/misc and other driver subsystem changes
 for 6.12-rc1.  Sorry for the delay, conference travel for the past two
 weeks has this and my other pull requests showing up real late
 in the cycle.
 
 Lots of changes in here, primarily dominated by the usual IIO driver
 updates and additions, but there are also small driver subsystem updates
 all over the place.  Included in here are:
   - lots and lots of new IIO drivers and updates to existing ones
   - interconnect subsystem updates and new drivers
   - nvmem subsystem updates and new drivers
   - mhi driver updates
   - power supply subsystem updates
   - kobj_type const work for many different small subsystems
   - comedi driver fix
   - coresight subsystem and driver updates
   - fpga subsystem improvements
   - slimbus fixups
   - binder new feature addition for "frozen" notifications
   - lots and lots of other small driver updates and cleanups
 
 All of these have been in linux-next for a long time with no reported
 problems.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'char-misc-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc

Pull char / misc driver updates from Greg KH:
 "Here is the "big" set of char/misc and other driver subsystem changes
  for 6.12-rc1.

  Lots of changes in here, primarily dominated by the usual IIO driver
  updates and additions, but there are also small driver subsystem
  updates all over the place. Included in here are:

   - lots and lots of new IIO drivers and updates to existing ones

   - interconnect subsystem updates and new drivers

   - nvmem subsystem updates and new drivers

   - mhi driver updates

   - power supply subsystem updates

   - kobj_type const work for many different small subsystems

   - comedi driver fix

   - coresight subsystem and driver updates

   - fpga subsystem improvements

   - slimbus fixups

   - binder new feature addition for "frozen" notifications

   - lots and lots of other small driver updates and cleanups

  All of these have been in linux-next for a long time with no reported
  problems"

* tag 'char-misc-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (354 commits)
  greybus: gb-beagleplay: Add firmware upload API
  arm64: dts: ti: k3-am625-beagleplay: Add bootloader-backdoor-gpios to cc1352p7
  dt-bindings: net: ti,cc1352p7: Add bootloader-backdoor-gpios
  MAINTAINERS: Update path for U-Boot environment variables YAML
  nvmem: layouts: add U-Boot env layout
  comedi: ni_routing: tools: Check when the file could not be opened
  ocxl: Remove the unused declarations in headr file
  hpet: Fix the wrong format specifier
  uio: Constify struct kobj_type
  cxl: Constify struct kobj_type
  binder: modify the comment for binder_proc_unlock
  iio: adc: axp20x_adc: add support for AXP717 ADC
  dt-bindings: iio: adc: Add AXP717 compatible
  iio: adc: axp20x_adc: Add adc_en1 and adc_en2 to axp_data
  w1: ds2482: Drop explicit initialization of struct i2c_device_id::driver_data to 0
  tools: iio: rm .*.cmd when make clean
  iio: adc: standardize on formatting for id match tables
  iio: proximity: aw96103: Add support for aw96103/aw96105 proximity sensor
  bus: mhi: host: pci_generic: Enable EDL trigger for Foxconn modems
  bus: mhi: host: pci_generic: Update EDL firmware path for Foxconn modems
  ...
2024-09-26 10:13:08 -07:00
Linus Torvalds
4965ddb166 USB/Thunderbolt update for 6.12-rc1
Here is the large set of USB and Thunderbolt changes for 6.12-rc1.
 
 Nothing "major" in here, except for a new 9p network gadget that has
 been worked on for a long time (all of the needed acks are here.)  Other
 than that, it's the usual set of:
   - Thunderbolt / USB4 driver updates and additions for new hardware
   - dwc3 driver updates and new features added
   - xhci driver updates
   - typec driver updates
   - USB gadget updates and api additions to make some gadgets more
     configurable by userspace
   - dwc2 driver updates
   - usb phy driver updates
   - usbip feature additions
   - other minor USB driver updates
 
 All of these have been in linux-next for a long time with no reported
 issues.
 
 Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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Merge tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb

Pull USB/Thunderbolt updates from Greg KH:
 "Here is the large set of USB and Thunderbolt changes for 6.12-rc1.

  Nothing "major" in here, except for a new 9p network gadget that has
  been worked on for a long time (all of the needed acks are here)

  Other than that, it's the usual set of:

   - Thunderbolt / USB4 driver updates and additions for new hardware

   - dwc3 driver updates and new features added

   - xhci driver updates

   - typec driver updates

   - USB gadget updates and api additions to make some gadgets more
     configurable by userspace

   - dwc2 driver updates

   - usb phy driver updates

   - usbip feature additions

   - other minor USB driver updates

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

* tag 'usb-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (145 commits)
  sub: cdns3: Use predefined PCI vendor ID constant
  sub: cdns2: Use predefined PCI vendor ID constant
  USB: misc: yurex: fix race between read and write
  USB: misc: cypress_cy7c63: check for short transfer
  USB: appledisplay: close race between probe and completion handler
  USB: class: CDC-ACM: fix race between get_serial and set_serial
  usb: r8a66597-hcd: make read-only const arrays static
  usb: typec: ucsi: Fix busy loop on ASUS VivoBooks
  usb: dwc3: rtk: Clean up error code in __get_dwc3_maximum_speed()
  usb: storage: ene_ub6250: Fix right shift warnings
  usb: roles: Improve the fix for a false positive recursive locking complaint
  locking/mutex: Introduce mutex_init_with_key()
  locking/mutex: Define mutex_init() once
  net/9p/usbg: fix CONFIG_USB_GADGET dependency
  usb: xhci: fix loss of data on Cadence xHC
  usb: xHCI: add XHCI_RESET_ON_RESUME quirk for Phytium xHCI host
  usb: dwc3: imx8mp: disable SS_CON and U3 wakeup for system sleep
  usb: dwc3: imx8mp: add 2 software managed quirk properties for host mode
  usb: host: xhci-plat: Parse xhci-missing_cas_quirk and apply quirk
  usb: misc: onboard_usb_dev: add Microchip usb5744 SMBus programming support
  ...
2024-09-26 09:45:36 -07:00
Linus Torvalds
5159938e10 Probes updates for v6.12:
- uprobes: make trace_uprobe->nhit counter a per-CPU one
    This makes uprobe event's hit counter per-CPU for improving
    scalability on multi-core environment.
 
 - kprobes: Remove obsoleted declaration for init_test_probes
    Remove unused init_test_probes() from header.
 
 - Raw tracepoint probe supports raw tracepoint events on modules.
    The tracepoint events using fprobe were introduced in v6.5, but
    tracepoints can be compiled in modules. This supports such a case.
    This includes the following improvements.
   . tracepoint: add a function for iterating over all tracepoints in
     all modules.
   . tracepoint: Add a function for iterating over tracepoints in a
     module.
   . tracing/fprobe: Support raw tracepoint events on modules.
   . tracing/fprobe: Support raw tracepoints on future loaded modules.
      This allows user to add tracepoint events on modules which is
      not loaded yet.
   . selftests/tracing: Add a test for tracepoint events on modules.
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Merge tag 'probes-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull probes updates from Masami Hiramatsu:

 - uprobes: make trace_uprobe->nhit counter a per-CPU one

   This makes uprobe event's hit counter per-CPU for improving
   scalability on multi-core environment

 - kprobes: Remove obsoleted declaration for init_test_probes

   Remove unused init_test_probes() from header

 - Raw tracepoint probe supports raw tracepoint events on modules:
     - add a function for iterating over all tracepoints in all modules
     - add a function for iterating over tracepoints in a module
     - support raw tracepoint events on modules
     - support raw tracepoints on future loaded modules
     - add a test for tracepoint events on modules"

* tag 'probes-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace:
  sefltests/tracing: Add a test for tracepoint events on modules
  tracing/fprobe: Support raw tracepoints on future loaded modules
  tracing/fprobe: Support raw tracepoint events on modules
  tracepoint: Support iterating tracepoints in a loading module
  tracepoint: Support iterating over tracepoints on modules
  kprobes: Remove obsoleted declaration for init_test_probes
  uprobes: turn trace_uprobe's nhit counter to be per-CPU one
2024-09-26 08:55:36 -07:00
Linus Torvalds
0181f8c809 virtio: features, fixes, cleanups
Several new features here:
 
 	virtio-balloon supports new stats
 
 	vdpa supports setting mac address
 
 	vdpa/mlx5 suspend/resume as well as MKEY ops are now faster
 
 	virtio_fs supports new sysfs entries for queue info
 
 	virtio/vsock performance has been improved
 
 Fixes, cleanups all over the place.
 
 Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
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Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Pull virtio updates from Michael Tsirkin:
 "Several new features here:

   - virtio-balloon supports new stats

   - vdpa supports setting mac address

   - vdpa/mlx5 suspend/resume as well as MKEY ops are now faster

   - virtio_fs supports new sysfs entries for queue info

   - virtio/vsock performance has been improved

  And fixes, cleanups all over the place"

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (34 commits)
  vsock/virtio: avoid queuing packets when intermediate queue is empty
  vsock/virtio: refactor virtio_transport_send_pkt_work
  fw_cfg: Constify struct kobj_type
  vdpa/mlx5: Postpone MR deletion
  vdpa/mlx5: Introduce init/destroy for MR resources
  vdpa/mlx5: Rename mr_mtx -> lock
  vdpa/mlx5: Extract mr members in own resource struct
  vdpa/mlx5: Rename function
  vdpa/mlx5: Delete direct MKEYs in parallel
  vdpa/mlx5: Create direct MKEYs in parallel
  MAINTAINERS: add virtio-vsock driver in the VIRTIO CORE section
  virtio_fs: add sysfs entries for queue information
  virtio_fs: introduce virtio_fs_put_locked helper
  vdpa: Remove unused declarations
  vdpa/mlx5: Parallelize VQ suspend/resume for CVQ MQ command
  vdpa/mlx5: Small improvement for change_num_qps()
  vdpa/mlx5: Keep notifiers during suspend but ignore
  vdpa/mlx5: Parallelize device resume
  vdpa/mlx5: Parallelize device suspend
  vdpa/mlx5: Use async API for vq modify commands
  ...
2024-09-26 08:43:17 -07:00
Paolo Abeni
aef3a58b06 netfilter pull request 24-09-26
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Merge tag 'nf-24-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf

Pablo Neira Ayuso says:

====================
Netfilter fixes for net

v2: with kdoc fixes per Paolo Abeni.

The following patchset contains Netfilter fixes for net:

Patch #1 and #2 handle an esoteric scenario: Given two tasks sending UDP
packets to one another, two packets of the same flow in each direction
handled by different CPUs that result in two conntrack objects in NEW
state, where reply packet loses race. Then, patch #3 adds a testcase for
this scenario. Series from Florian Westphal.

1) NAT engine can falsely detect a port collision if it happens to pick
   up a reply packet as NEW rather than ESTABLISHED. Add extra code to
   detect this and suppress port reallocation in this case.

2) To complete the clash resolution in the reply direction, extend conntrack
   logic to detect clashing conntrack in the reply direction to existing entry.

3) Adds a test case.

Then, an assorted list of fixes follow:

4) Add a selftest for tproxy, from Antonio Ojea.

5) Guard ctnetlink_*_size() functions under
   #if defined(CONFIG_NETFILTER_NETLINK_GLUE_CT) || defined(CONFIG_NF_CONNTRACK_EVENTS)
   From Andy Shevchenko.

6) Use -m socket --transparent in iptables tproxy documentation.
   From XIE Zhibang.

7) Call kfree_rcu() when releasing flowtable hooks to address race with
   netlink dump path, from Phil Sutter.

8) Fix compilation warning in nf_reject with CONFIG_BRIDGE_NETFILTER=n.
   From Simon Horman.

9) Guard ctnetlink_label_size() under CONFIG_NF_CONNTRACK_EVENTS which
   is its only user, to address a compilation warning. From Simon Horman.

10) Use rcu-protected list iteration over basechain hooks from netlink
    dump path.

11) Fix memcg for nf_tables, use GFP_KERNEL_ACCOUNT is not complete.

12) Remove old nfqueue conntrack clash resolution. Instead trying to
    use same destination address consistently which requires double DNAT,
    use the existing clash resolution which allows clashing packets
    go through with different destination. Antonio Ojea originally
    reported an issue from the postrouting chain, I proposed a fix:
    https://lore.kernel.org/netfilter-devel/ZuwSwAqKgCB2a51-@calendula/T/
    which he reported it did not work for him.

13) Adds a selftest for patch 12.

14) Fixes ipvs.sh selftest.

netfilter pull request 24-09-26

* tag 'nf-24-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/netfilter/nf:
  selftests: netfilter: Avoid hanging ipvs.sh
  kselftest: add test for nfqueue induced conntrack race
  netfilter: nfnetlink_queue: remove old clash resolution logic
  netfilter: nf_tables: missing objects with no memcg accounting
  netfilter: nf_tables: use rcu chain hook list iterator from netlink dump path
  netfilter: ctnetlink: compile ctnetlink_label_size with CONFIG_NF_CONNTRACK_EVENTS
  netfilter: nf_reject: Fix build warning when CONFIG_BRIDGE_NETFILTER=n
  netfilter: nf_tables: Keep deleted flowtable hooks until after RCU
  docs: tproxy: ignore non-transparent sockets in iptables
  netfilter: ctnetlink: Guard possible unused functions
  selftests: netfilter: nft_tproxy.sh: add tcp tests
  selftests: netfilter: add reverse-clash resolution test case
  netfilter: conntrack: add clash resolution for reverse collisions
  netfilter: nf_nat: don't try nat source port reallocation for reverse dir clash
====================

Link: https://patch.msgid.link/20240926110717.102194-1-pablo@netfilter.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-26 15:47:11 +02:00
Phil Sutter
fc786304ad selftests: netfilter: Avoid hanging ipvs.sh
If the client can't reach the server, the latter remains listening
forever. Kill it after 5s of waiting.

Fixes: 867d219079 ("selftests: netfilter: add ipvs test script")
Signed-off-by: Phil Sutter <phil@nwl.cc>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-09-26 13:03:03 +02:00
Florian Westphal
e306e3739d kselftest: add test for nfqueue induced conntrack race
The netfilter race happens when two packets with the same tuple are DNATed
and enqueued with nfqueue in the postrouting hook.

Once one of the packet is reinjected it may be DNATed again to a different
destination, but the conntrack entry remains the same and the return packet
was dropped.

Based on earlier patch from Antonio Ojea.

Link: https://bugzilla.netfilter.org/show_bug.cgi?id=1766
Co-developed-by: Antonio Ojea <aojea@google.com>
Signed-off-by: Antonio Ojea <aojea@google.com>
Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-09-26 13:03:03 +02:00
Antonio Ojea
7e37e0eacd selftests: netfilter: nft_tproxy.sh: add tcp tests
The TPROXY functionality is widely used, however, there are only mptcp
selftests covering this feature.

The selftests represent the most common scenarios and can also be used
as selfdocumentation of the feature.

UDP and TCP testcases are split in different files because of the
different nature of the protocols, specially due to the challenges that
present to reliable test UDP due to the connectionless nature of the
protocol. UDP only covers the scenarios involving the prerouting hook.

The UDP tests are signfinicantly slower than the TCP ones, hence they
use a larger timeout, it takes 20 seconds to run the full UDP suite
on a 48 vCPU Intel(R) Xeon(R) CPU @2.60GHz.

Signed-off-by: Antonio Ojea <aojea@google.com>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-09-26 13:03:01 +02:00
Florian Westphal
a57856c0bb selftests: netfilter: add reverse-clash resolution test case
Add test program that is sending UDP packets in both directions
and check that packets arrive without source port modification.

Signed-off-by: Florian Westphal <fw@strlen.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2024-09-26 13:03:01 +02:00
Willem de Bruijn
72ef07554c selftests/net: packetdrill: increase timing tolerance in debug mode
Some packetdrill tests are flaky in debug mode. As discussed, increase
tolerance.

We have been doing this for debug builds outside ksft too.

Previous setting was 10000. A manual 50 runs in virtme-ng showed two
failures that needed 12000. To be on the safe side, Increase to 14000.

Link: https://lore.kernel.org/netdev/Zuhhe4-MQHd3EkfN@mini-arch/
Fixes: 1e42f73fd3 ("selftests/net: packetdrill: import tcp/zerocopy")
Reported-by: Stanislav Fomichev <sdf@fomichev.me>
Signed-off-by: Willem de Bruijn <willemb@google.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Acked-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20240919124412.3014326-1-willemdebruijn.kernel@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2024-09-26 11:03:57 +02:00
Linus Torvalds
aa486552a1 memblock: updates for 6.12-rc1
* new memblock_estimated_nr_free_pages() helper to replace totalram_pages()
   which is less accurate when CONFIG_DEFERRED_STRUCT_PAGE_INIT is set
 * fixes for memblock tests
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Merge tag 'memblock-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock updates from Mike Rapoport:

 - new memblock_estimated_nr_free_pages() helper to replace
   totalram_pages() which is less accurate when
   CONFIG_DEFERRED_STRUCT_PAGE_INIT is set

 - fixes for memblock tests

* tag 'memblock-v6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock:
  s390/mm: get estimated free pages by memblock api
  kernel/fork.c: get estimated free pages by memblock api
  mm/memblock: introduce a new helper memblock_estimated_nr_free_pages()
  memblock test: fix implicit declaration of function 'strscpy'
  memblock test: fix implicit declaration of function 'isspace'
  memblock test: fix implicit declaration of function 'memparse'
  memblock test: add the definition of __setup()
  memblock test: fix implicit declaration of function 'virt_to_phys'
  tools/testing: abstract two init.h into common include directory
  memblock tests: include export.h in linkage.h as kernel dose
  memblock tests: include memory_hotplug.h in mmzone.h as kernel dose
2024-09-25 11:35:19 -07:00
Linus Torvalds
5701725692 Rust changes for v6.12
Toolchain and infrastructure:
 
  - Support 'MITIGATION_{RETHUNK,RETPOLINE,SLS}' (which cleans up objtool
    warnings), teach objtool about 'noreturn' Rust symbols and mimic
    '___ADDRESSABLE()' for 'module_{init,exit}'. With that, we should be
    objtool-warning-free, so enable it to run for all Rust object files.
 
  - KASAN (no 'SW_TAGS'), KCFI and shadow call sanitizer support.
 
  - Support 'RUSTC_VERSION', including re-config and re-build on change.
 
  - Split helpers file into several files in a folder, to avoid conflicts
    in it. Eventually those files will be moved to the right places with
    the new build system. In addition, remove the need to manually export
    the symbols defined there, reusing existing machinery for that.
 
  - Relax restriction on configurations with Rust + GCC plugins to just
    the RANDSTRUCT plugin.
 
 'kernel' crate:
 
  - New 'list' module: doubly-linked linked list for use with reference
    counted values, which is heavily used by the upcoming Rust Binder.
    This includes 'ListArc' (a wrapper around 'Arc' that is guaranteed
    unique for the given ID), 'AtomicTracker' (tracks whether a 'ListArc'
    exists using an atomic), 'ListLinks' (the prev/next pointers for an
    item in a linked list), 'List' (the linked list itself), 'Iter' (an
    iterator over a 'List'), 'Cursor' (a cursor into a 'List' that allows
    to remove elements), 'ListArcField' (a field exclusively owned by a
    'ListArc'), as well as support for heterogeneous lists.
 
  - New 'rbtree' module: red-black tree abstractions used by the upcoming
    Rust Binder. This includes 'RBTree' (the red-black tree itself),
    'RBTreeNode' (a node), 'RBTreeNodeReservation' (a memory reservation
    for a node), 'Iter' and 'IterMut' (immutable and mutable iterators),
    'Cursor' (bidirectional cursor that allows to remove elements), as
    well as an entry API similar to the Rust standard library one.
 
  - 'init' module: add 'write_[pin_]init' methods and the 'InPlaceWrite'
    trait. Add the 'assert_pinned!' macro.
 
  - 'sync' module: implement the 'InPlaceInit' trait for 'Arc' by
    introducing an associated type in the trait.
 
  - 'alloc' module: add 'drop_contents' method to 'BoxExt'.
 
  - 'types' module: implement the 'ForeignOwnable' trait for
    'Pin<Box<T>>' and improve the trait's documentation. In addition,
    add the 'into_raw' method to the 'ARef' type.
 
  - 'error' module: in preparation for the upcoming Rust support for
    32-bit architectures, like arm, locally allow Clippy lint for those.
 
 Documentation:
 
  - https://rust.docs.kernel.org has been announced, so link to it.
 
  - Enable rustdoc's "jump to definition" feature, making its output a
    bit closer to the experience in a cross-referencer.
 
  - Debian Testing now also provides recent Rust releases (outside of
    the freeze period), so add it to the list.
 
 MAINTAINERS:
 
  - Trevor is joining as reviewer of the "RUST" entry.
 
 And a few other small bits.
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Merge tag 'rust-6.12' of https://github.com/Rust-for-Linux/linux

Pull Rust updates from Miguel Ojeda:
 "Toolchain and infrastructure:

   - Support 'MITIGATION_{RETHUNK,RETPOLINE,SLS}' (which cleans up
     objtool warnings), teach objtool about 'noreturn' Rust symbols and
     mimic '___ADDRESSABLE()' for 'module_{init,exit}'. With that, we
     should be objtool-warning-free, so enable it to run for all Rust
     object files.

   - KASAN (no 'SW_TAGS'), KCFI and shadow call sanitizer support.

   - Support 'RUSTC_VERSION', including re-config and re-build on
     change.

   - Split helpers file into several files in a folder, to avoid
     conflicts in it. Eventually those files will be moved to the right
     places with the new build system. In addition, remove the need to
     manually export the symbols defined there, reusing existing
     machinery for that.

   - Relax restriction on configurations with Rust + GCC plugins to just
     the RANDSTRUCT plugin.

  'kernel' crate:

   - New 'list' module: doubly-linked linked list for use with reference
     counted values, which is heavily used by the upcoming Rust Binder.

     This includes 'ListArc' (a wrapper around 'Arc' that is guaranteed
     unique for the given ID), 'AtomicTracker' (tracks whether a
     'ListArc' exists using an atomic), 'ListLinks' (the prev/next
     pointers for an item in a linked list), 'List' (the linked list
     itself), 'Iter' (an iterator over a 'List'), 'Cursor' (a cursor
     into a 'List' that allows to remove elements), 'ListArcField' (a
     field exclusively owned by a 'ListArc'), as well as support for
     heterogeneous lists.

   - New 'rbtree' module: red-black tree abstractions used by the
     upcoming Rust Binder.

     This includes 'RBTree' (the red-black tree itself), 'RBTreeNode' (a
     node), 'RBTreeNodeReservation' (a memory reservation for a node),
     'Iter' and 'IterMut' (immutable and mutable iterators), 'Cursor'
     (bidirectional cursor that allows to remove elements), as well as
     an entry API similar to the Rust standard library one.

   - 'init' module: add 'write_[pin_]init' methods and the
     'InPlaceWrite' trait. Add the 'assert_pinned!' macro.

   - 'sync' module: implement the 'InPlaceInit' trait for 'Arc' by
     introducing an associated type in the trait.

   - 'alloc' module: add 'drop_contents' method to 'BoxExt'.

   - 'types' module: implement the 'ForeignOwnable' trait for
     'Pin<Box<T>>' and improve the trait's documentation. In addition,
     add the 'into_raw' method to the 'ARef' type.

   - 'error' module: in preparation for the upcoming Rust support for
     32-bit architectures, like arm, locally allow Clippy lint for
     those.

  Documentation:

   - https://rust.docs.kernel.org has been announced, so link to it.

   - Enable rustdoc's "jump to definition" feature, making its output a
     bit closer to the experience in a cross-referencer.

   - Debian Testing now also provides recent Rust releases (outside of
     the freeze period), so add it to the list.

  MAINTAINERS:

   - Trevor is joining as reviewer of the "RUST" entry.

  And a few other small bits"

* tag 'rust-6.12' of https://github.com/Rust-for-Linux/linux: (54 commits)
  kasan: rust: Add KASAN smoke test via UAF
  kbuild: rust: Enable KASAN support
  rust: kasan: Rust does not support KHWASAN
  kbuild: rust: Define probing macros for rustc
  kasan: simplify and clarify Makefile
  rust: cfi: add support for CFI_CLANG with Rust
  cfi: add CONFIG_CFI_ICALL_NORMALIZE_INTEGERS
  rust: support for shadow call stack sanitizer
  docs: rust: include other expressions in conditional compilation section
  kbuild: rust: replace proc macros dependency on `core.o` with the version text
  kbuild: rust: rebuild if the version text changes
  kbuild: rust: re-run Kconfig if the version text changes
  kbuild: rust: add `CONFIG_RUSTC_VERSION`
  rust: avoid `box_uninit_write` feature
  MAINTAINERS: add Trevor Gross as Rust reviewer
  rust: rbtree: add `RBTree::entry`
  rust: rbtree: add cursor
  rust: rbtree: add mutable iterator
  rust: rbtree: add iterator
  rust: rbtree: add red-black tree implementation backed by the C version
  ...
2024-09-25 10:25:40 -07:00
Masami Hiramatsu (Google)
4e78dd6b4c sefltests/tracing: Add a test for tracepoint events on modules
Add a test case for tracepoint events on modules. This checks if it can add
and remove the events correctly.

Link: https://lore.kernel.org/all/172397781494.286558.7581515061075998225.stgit@devnote2/

Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2024-09-25 23:23:44 +09:00
Masami Hiramatsu (Google)
57a7e6de9e tracing/fprobe: Support raw tracepoints on future loaded modules
Support raw tracepoint events on future loaded (unloaded) modules.
This allows user to create raw tracepoint events which can be used from
module's __init functions.

Note: since the kernel does not have any information about the tracepoints
in the unloaded modules, fprobe events can not check whether the tracepoint
exists nor extend the BTF based arguments.

Link: https://lore.kernel.org/all/172397780593.286558.18360375226968537828.stgit@devnote2/

Suggested-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Signed-off-by: Masami Hiramatsu (Google) <mhiramat@kernel.org>
2024-09-25 23:23:44 +09:00
Linus Torvalds
7f8de2bf07 linux-cpupower-6.12-rc1-fixes
This cpupower fixes update consists fix to raw_pylibcpupower.i being
 removed by "make mrproper". "*.i", "*.o" files are generated during
 kernel compile and removed when the repo is cleaned by mrproper.
 
 The file is renamed to use .swg extension instead to avoid the problem.
 The second patch removes references to raw_pylibcpupower.i from .gitignore.
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Merge tag 'linux-cpupower-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux

Pull cpupower updates from Shuah Khan
 "The 'raw_pylibcpupower.i' file was being removed by "make mrproper".

  That was because '*.i', '.s' and '*.o' files are generated during
  kernel compile and removed when the repo is cleaned by mrproper.

  Rename it to use .swg extension instead to avoid the problem.

  A second patch removes references to it from .gitignore"

* tag 'linux-cpupower-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux:
  pm: cpupower: Clean up bindings gitignore
  pm: cpupower: rename raw_pylibcpupower.i
2024-09-24 12:57:46 -07:00
Linus Torvalds
6fa6588e59 sched_ext: Fixes for v6.12-rc1
- Three build fixes.
 
 - The fix for a stall bug introduced by a recent optimization in sched core
   (SM_IDLE).
 
 - Addition of /sys/kernel/sched_ext/enable_seq. While not a fix, it is a
   simple addition that distro people want to be able to tell whether an SCX
   scheduler has ever been loaded on the system.
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Merge tag 'sched_ext-for-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext fixes from Tejun Heo:

 - Three build fixes

 - The fix for a stall bug introduced by a recent optimization in sched
   core (SM_IDLE)

 - Addition of /sys/kernel/sched_ext/enable_seq. While not a fix, it is
   a simple addition that distro people want to be able to tell whether
   an SCX scheduler has ever been loaded on the system

* tag 'sched_ext-for-6.12-rc1-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext:
  sched_ext: Provide a sysfs enable_seq counter
  sched_ext: Fix build when !CONFIG_STACKTRACE
  sched, sched_ext: Disable SM_IDLE/rq empty path when scx_enabled()
  sched: Put task_group::idle under CONFIG_GROUP_SCHED_WEIGHT
  sched: Add dummy version of sched_group_set_idle()
2024-09-24 11:33:50 -07:00
Linus Torvalds
97d8894b6f RISC-V Patches for the 6.12 Merge Window, Part 1
* Support for using Zkr to seed KASLR.
 * Support for IPI-triggered CPU backtracing.
 * Support for generic CPU vulnerabilities reporting to userspace.
 * A few cleanups for missing licenses.
 * The size limit on the XIP kernel has been removed.
 * Support for tracing userspace stacks.
 * Support for the Svvptc extension.
 * Various cleanups and fixes throughout the tree.
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Merge tag 'riscv-for-linus-6.12-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Palmer Dabbelt:

 - Support using Zkr to seed KASLR

 - Support IPI-triggered CPU backtracing

 - Support for generic CPU vulnerabilities reporting to userspace

 - A few cleanups for missing licenses

 - The size limit on the XIP kernel has been removed

 - Support for tracing userspace stacks

 - Support for the Svvptc extension

 - Various cleanups and fixes throughout the tree

* tag 'riscv-for-linus-6.12-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (47 commits)
  crash: Fix riscv64 crash memory reserve dead loop
  perf/riscv-sbi: Add platform specific firmware event handling
  tools: Optimize ring buffer for riscv
  tools: Add riscv barrier implementation
  RISC-V: Don't have MAX_PHYSMEM_BITS exceed phys_addr_t
  ACPI: NUMA: initialize all values of acpi_early_node_map to NUMA_NO_NODE
  riscv: Enable bitops instrumentation
  riscv: Omit optimized string routines when using KASAN
  ACPI: RISCV: Make acpi_numa_get_nid() to be static
  riscv: Randomize lower bits of stack address
  selftests: riscv: Allow mmap test to compile on 32-bit
  riscv: Make riscv_isa_vendor_ext_andes array static
  riscv: Use LIST_HEAD() to simplify code
  riscv: defconfig: Disable RZ/Five peripheral support
  RISC-V: Implement kgdb_roundup_cpus() to enable future NMI Roundup
  riscv: avoid Imbalance in RAS
  riscv: cacheinfo: Add back init_cache_level() function
  riscv: Remove unused _TIF_WORK_MASK
  drivers/perf: riscv: Remove redundant macro check
  riscv: define ILLEGAL_POINTER_VALUE for 64bit
  ...
2024-09-24 10:59:17 -07:00
Linus Torvalds
e1b061b444 Landlock updates for v6.12-rc1
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Merge tag 'landlock-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux

Pull landlock updates from Mickaël Salaün:
 "We can now scope a Landlock domain thanks to a new "scoped" field that
  can deny interactions with resources outside of this domain.

  The LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET flag denies connections to an
  abstract UNIX socket created outside of the current scoped domain, and
  the LANDLOCK_SCOPE_SIGNAL flag denies sending a signal to processes
  outside of the current scoped domain.

  These restrictions also apply to nested domains according to their
  scope. The related changes will also be useful to support other kind
  of IPC isolations"

* tag 'landlock-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux:
  landlock: Document LANDLOCK_SCOPE_SIGNAL
  samples/landlock: Add support for signal scoping
  selftests/landlock: Test signal created by out-of-bound message
  selftests/landlock: Test signal scoping for threads
  selftests/landlock: Test signal scoping
  landlock: Add signal scoping
  landlock: Document LANDLOCK_SCOPE_ABSTRACT_UNIX_SOCKET
  samples/landlock: Add support for abstract UNIX socket scoping
  selftests/landlock: Test inherited restriction of abstract UNIX socket
  selftests/landlock: Test connected and unconnected datagram UNIX socket
  selftests/landlock: Test UNIX sockets with any address formats
  selftests/landlock: Test abstract UNIX socket scoping
  selftests/landlock: Test handling of unknown scope
  landlock: Add abstract UNIX socket scoping
2024-09-24 10:40:11 -07:00
Linus Torvalds
3a37872316 pci-v6.12-changes
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Merge tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci

Pull pci updates from Bjorn Helgaas:
 "Enumeration:

   - Wait for device readiness after reset by polling Vendor ID and
     looking for Configuration RRS instead of polling the Command
     register and looking for non-error completions, to avoid hardware
     retries done for RRS on non-Vendor ID reads (Bjorn Helgaas)

   - Rename CRS Completion Status to RRS ('Request Retry Status') to
     match PCIe r6.0 spec usage (Bjorn Helgaas)

   - Clear LBMS bit after a manual link retrain so we don't try to
     retrain a link when there's no downstream device anymore (Maciej W.
     Rozycki)

   - Revert to the original link speed after retraining fails instead of
     leaving it restricted to 2.5GT/s, so a future device has a chance
     to use higher speeds (Maciej W. Rozycki)

   - Wait for each level of downstream bus, not just the first, to
     become accessible before restoring devices on that bus (Ilpo
     Järvinen)

   - Add ARCH_PCI_DEV_GROUPS so s390 can add its own attribute_groups
     without having to stomp on the core's pdev->dev.groups (Lukas
     Wunner)

  Driver binding:

   - Export pcim_request_region(), a managed counterpart of
     pci_request_region(), for use by drivers (Philipp Stanner)

   - Export pcim_iomap_region() and deprecate pcim_iomap_regions()
     (Philipp Stanner)

   - Request the PCI BAR used by xboxvideo (Philipp Stanner)

   - Request and map drm/ast BARs with pcim_iomap_region() (Philipp
     Stanner)

  MSI:

   - Add MSI_FLAG_NO_AFFINITY flag for devices that mux MSIs onto a
     single IRQ line and cannot set the affinity of each MSI to a
     specific CPU core (Marek Vasut)

   - Use MSI_FLAG_NO_AFFINITY and remove unnecessary .irq_set_affinity()
     implementations in aardvark, altera, brcmstb, dwc, mediatek-gen3,
     mediatek, mobiveil, plda, rcar, tegra, vmd, xilinx-nwl,
     xilinx-xdma, and xilinx drivers to avoid 'IRQ: set affinity failed'
     warnings (Marek Vasut)

  Power management:

   - Add pwrctl support for ATH11K inside the WCN6855 package (Konrad
     Dybcio)

  PCI device hotplug:

   - Remove unnecessary hpc_ops struct from shpchp (ngn)

   - Check for PCI_POSSIBLE_ERROR(), not 0xffffffff, in cpqphp
     (weiyufeng)

  Virtualization:

   - Mark Creative Labs EMU20k2 INTx masking as broken (Alex Williamson)

   - Add an ACS quirk for Qualcomm SA8775P, which doesn't advertise ACS
     but does provide ACS-like features (Subramanian Ananthanarayanan)

  IOMMU:

   - Add function 0 DMA alias quirk for Glenfly Arise audio function,
     which uses the function 0 Requester ID (WangYuli)

  NPEM:

   - Add Native PCIe Enclosure Management (NPEM) support for sysfs
     control of NVMe RAID storage indicators (ok/fail/locate/
     rebuild/etc) (Mariusz Tkaczyk)

   - Add support for the ACPI _DSM PCIe SSD status LED management, which
     is functionally similar to NPEM but mediated by platform firmware
     (Mariusz Tkaczyk)

  Device trees:

   - Drop minItems and maxItems from ranges in PCI generic host binding
     since host bridges may have several MMIO and I/O port apertures
     (Frank Li)

   - Add kirin, rcar-gen2, uniphier DT binding top-level constraints for
     clocks (Krzysztof Kozlowski)

  Altera PCIe controller driver:

   - Convert altera DT bindings from text to YAML (Matthew Gerlach)

   - Replace TLP_REQ_ID() with macro PCI_DEVID(), which does the same
     thing and is what other drivers use (Jinjie Ruan)

  Broadcom STB PCIe controller driver:

   - Add DT binding maxItems for reset controllers (Jim Quinlan)

   - Use the 'bridge' reset method if described in the DT (Jim Quinlan)

   - Use the 'swinit' reset method if described in the DT (Jim Quinlan)

   - Add 'has_phy' so the existence of a 'rescal' reset controller
     doesn't imply software control of it (Jim Quinlan)

   - Add support for many inbound DMA windows (Jim Quinlan)

   - Rename SoC 'type' to 'soc_base' express the fact that SoCs come in
     families of multiple similar devices (Jim Quinlan)

   - Add Broadcom 7712 DT description and driver support (Jim Quinlan)

   - Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings for
     maintainability (Bjorn Helgaas)

  Freescale i.MX6 PCIe controller driver:

   - Add imx6q-pcie 'dbi2' and 'atu' reg-names for i.MX8M Endpoints
     (Richard Zhu)

   - Fix a code restructuring error that caused i.MX8MM and i.MX8MP
     Endpoints to fail to establish link (Richard Zhu)

   - Fix i.MX8MP Endpoint occasional failure to trigger MSI by enforcing
     outbound alignment requirement (Richard Zhu)

   - Call phy_power_off() in the .probe() error path (Frank Li)

   - Rename internal names from imx6_* to imx_* since i.MX7/8/9 are also
     supported (Frank Li)

   - Manage Refclk by using SoC-specific callbacks instead of switch
     statements (Frank Li)

   - Manage core reset by using SoC-specific callbacks instead of switch
     statements (Frank Li)

   - Expand comments for erratum ERR010728 workaround (Frank Li)

   - Use generic PHY APIs to configure mode, speed, and submode, which
     is harmless for devices that implement their own internal PHY
     management and don't set the generic imx_pcie->phy (Frank Li)

   - Add i.MX8Q (i.MX8QM, i.MX8QXP, and i.MX8DXL) DT binding and driver
     Root Complex support (Richard Zhu)

  Freescale Layerscape PCIe controller driver:

   - Replace layerscape-pcie DT binding compatible fsl,lx2160a-pcie with
     fsl,lx2160ar2-pcie (Frank Li)

   - Add layerscape-pcie DT binding deprecated 'num-viewport' property
     to address a DT checker warning (Frank Li)

   - Change layerscape-pcie DT binding 'fsl,pcie-scfg' to phandle-array
     (Frank Li)

  Loongson PCIe controller driver:

   - Increase max PCI hosts to 8 for Loongson-3C6000 and newer chipsets
     (Huacai Chen)

  Marvell Aardvark PCIe controller driver:

   - Fix issue with emulating Configuration RRS for two-byte reads of
     Vendor ID; previously it only worked for four-byte reads (Bjorn
     Helgaas)

  MediaTek PCIe Gen3 controller driver:

   - Add per-SoC struct mtk_gen3_pcie_pdata to support multiple SoC
     types (Lorenzo Bianconi)

   - Use reset_bulk APIs to manage PHY reset lines (Lorenzo Bianconi)

   - Add DT and driver support for Airoha EN7581 PCIe controller
     (Lorenzo Bianconi)

  Qualcomm PCIe controller driver:

   - Update qcom,pcie-sc7280 DT binding with eight interrupts (Rayyan
     Ansari)

   - Add back DT 'vddpe-3v3-supply', which was incorrectly removed
     earlier (Johan Hovold)

   - Drop endpoint redundant masking of global IRQ events (Manivannan
     Sadhasivam)

   - Clarify unknown global IRQ message and only log it once to avoid a
     flood (Manivannan Sadhasivam)

   - Add 'linux,pci-domain' property to endpoint DT binding (Manivannan
     Sadhasivam)

   - Assign PCI domain number for endpoint controllers (Manivannan
     Sadhasivam)

   - Add 'qcom_pcie_ep' and the PCI domain number to IRQ names for
     endpoint controller (Manivannan Sadhasivam)

   - Add global SPI interrupt for PCIe link events to DT binding
     (Manivannan Sadhasivam)

   - Add global RC interrupt handler to handle 'Link up' events and
     automatically enumerate hot-added devices (Manivannan Sadhasivam)

   - Avoid mirroring of DBI and iATU register space so it doesn't
     overlap BAR MMIO space (Prudhvi Yarlagadda)

   - Enable controller resources like PHY only after PERST# is
     deasserted to partially avoid the problem that the endpoint SoC
     crashes when accessing things when Refclk is absent (Manivannan
     Sadhasivam)

   - Add 16.0 GT/s equalization and RX lane margining settings (Shashank
     Babu Chinta Venkata)

   - Pass domain number to pci_bus_release_domain_nr() explicitly to
     avoid a NULL pointer dereference (Manivannan Sadhasivam)

  Renesas R-Car PCIe controller driver:

   - Make the read-only const array 'check_addr' static (Colin Ian King)

   - Add R-Car V4M (R8A779H0) PCIe host and endpoint to DT binding
     (Yoshihiro Shimoda)

  TI DRA7xx PCIe controller driver:

   - Request IRQF_ONESHOT for 'dra7xx-pcie-main' IRQ since the primary
     handler is NULL (Siddharth Vadapalli)

   - Handle IRQ request errors during root port and endpoint probe
     (Siddharth Vadapalli)

  TI J721E PCIe driver:

   - Add DT 'ti,syscon-acspcie-proxy-ctrl' and driver support to enable
     the ACSPCIE module to drive Refclk for the Endpoint (Siddharth
     Vadapalli)

   - Extract the cadence link setup from cdns_pcie_host_setup() so link
     setup can be done separately during resume (Thomas Richard)

   - Add T_PERST_CLK_US definition for the mandatory delay between
     Refclk becoming stable and PERST# being deasserted (Thomas Richard)

   - Add j721e suspend and resume support (Théo Lebrun)

  TI Keystone PCIe controller driver:

   - Fix NULL pointer checking when applying MRRS limitation quirk for
     AM65x SR 1.0 Errata #i2037 (Dan Carpenter)

  Xilinx NWL PCIe controller driver:

   - Fix off-by-one error in INTx IRQ handler that caused INTx
     interrupts to be lost or delivered as the wrong interrupt (Sean
     Anderson)

   - Rate-limit misc interrupt messages (Sean Anderson)

   - Turn off the clock on probe failure and device removal (Sean
     Anderson)

   - Add DT binding and driver support for enabling/disabling PHYs (Sean
     Anderson)

   - Add PCIe phy bindings for the ZCU102 (Sean Anderson)

  Xilinx XDMA PCIe controller driver:

   - Add support for Xilinx QDMA Soft IP PCIe Root Port Bridge to DT
     binding and xilinx-dma-pl driver (Thippeswamy Havalige)

  Miscellaneous:

   - Fix buffer overflow in kirin_pcie_parse_port() (Alexandra Diupina)

   - Fix minor kerneldoc issues and typos (Bjorn Helgaas)

   - Use PCI_DEVID() macro in aer_inject() instead of open-coding it
     (Jinjie Ruan)

   - Check pcie_find_root_port() return in x86 fixups to avoid NULL
     pointer dereferences (Samasth Norway Ananda)

   - Make pci_bus_type constant (Kunwu Chan)

   - Remove unused declarations of __pci_pme_wakeup() and
     pci_vpd_release() (Yue Haibing)

   - Remove any leftover .*.cmd files with make clean (zhang jiao)

   - Remove unused BILLION macro (zhang jiao)"

* tag 'pci-v6.12-changes' of git://git.kernel.org/pub/scm/linux/kernel/git/pci/pci: (132 commits)
  PCI: Fix typos
  dt-bindings: PCI: qcom: Allow 'vddpe-3v3-supply' again
  tools: PCI: Remove unused BILLION macro
  tools: PCI: Remove .*.cmd files with make clean
  PCI: Pass domain number to pci_bus_release_domain_nr() explicitly
  PCI: dra7xx: Fix error handling when IRQ request fails in probe
  PCI: dra7xx: Fix threaded IRQ request for "dra7xx-pcie-main" IRQ
  PCI: qcom: Add RX lane margining settings for 16.0 GT/s
  PCI: qcom: Add equalization settings for 16.0 GT/s
  PCI: dwc: Always cache the maximum link speed value in dw_pcie::max_link_speed
  PCI: dwc: Rename 'dw_pcie::link_gen' to 'dw_pcie::max_link_speed'
  PCI: qcom-ep: Enable controller resources like PHY only after refclk is available
  PCI: Mark Creative Labs EMU20k2 INTx masking as broken
  dt-bindings: PCI: imx6q-pcie: Add reg-name "dbi2" and "atu" for i.MX8M PCIe Endpoint
  dt-bindings: PCI: altera: msi: Convert to YAML
  PCI: imx6: Add i.MX8Q PCIe Root Complex (RC) support
  PCI: Rename CRS Completion Status to RRS
  PCI: aardvark: Correct Configuration RRS checking
  PCI: Wait for device readiness with Configuration RRS
  PCI: brcmstb: Sort enums, pcie_offsets[], pcie_cfg_data, .compatible strings
  ...
2024-09-23 12:47:06 -07:00
Linus Torvalds
18ba603446 NFSD 6.12 Release Notes
Notable features of this release include:
 
 - Pre-requisites for automatically determining the RPC server thread
   count
 - Clean-up and preparation for supporting LOCALIO, which will be
   merged via the NFS client tree
 - Enhancements and fixes to NFSv4.2 COPY offload
 - A new Python-based tool for generating kernel SunRPC XDR encoding
   and decoding functions, added as an aid for prototyping features
   in protocols based on the Linux kernel's SunRPC implementation.
 
 As always I am grateful to the NFSD contributors, reviewers,
 testers, and bug reporters who participated during this cycle.
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Merge tag 'nfsd-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux

Pull nfsd updates from Chuck Lever:
 "Notable features of this release include:

   - Pre-requisites for automatically determining the RPC server thread
     count

   - Clean-up and preparation for supporting LOCALIO, which will be
     merged via the NFS client tree

   - Enhancements and fixes to NFSv4.2 COPY offload

   - A new Python-based tool for generating kernel SunRPC XDR encoding
     and decoding functions, added as an aid for prototyping features in
     protocols based on the Linux kernel's SunRPC implementation

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

* tag 'nfsd-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (57 commits)
  xdrgen: Prevent reordering of encoder and decoder functions
  xdrgen: typedefs should use the built-in string and opaque functions
  xdrgen: Fix return code checking in built-in XDR decoders
  tools: Add xdrgen
  nfsd: fix delegation_blocked() to block correctly for at least 30 seconds
  nfsd: fix initial getattr on write delegation
  nfsd: untangle code in nfsd4_deleg_getattr_conflict()
  nfsd: enforce upper limit for namelen in __cld_pipe_inprogress_downcall()
  nfsd: return -EINVAL when namelen is 0
  NFSD: Wrap async copy operations with trace points
  NFSD: Clean up extra whitespace in trace_nfsd_copy_done
  NFSD: Record the callback stateid in copy tracepoints
  NFSD: Display copy stateids with conventional print formatting
  NFSD: Limit the number of concurrent async COPY operations
  NFSD: Async COPY result needs to return a write verifier
  nfsd: avoid races with wake_up_var()
  nfsd: use clear_and_wake_up_bit()
  sunrpc: xprtrdma: Use ERR_CAST() to return
  NFSD: Annotate struct pnfs_block_deviceaddr with __counted_by()
  nfsd: call cache_put if xdr_reserve_space returns NULL
  ...
2024-09-23 12:01:45 -07:00
Andrea Righi
431844b65f sched_ext: Provide a sysfs enable_seq counter
As discussed during the distro-centric session within the sched_ext
Microconference at LPC 2024, introduce a sequence counter that is
incremented every time a BPF scheduler is loaded.

This feature can help distributions in diagnosing potential performance
regressions by identifying systems where users are running (or have ran)
custom BPF schedulers.

Example:

 arighi@virtme-ng~> cat /sys/kernel/sched_ext/enable_seq
 0
 arighi@virtme-ng~> sudo scx_simple
 local=1 global=0
 ^CEXIT: unregistered from user space
 arighi@virtme-ng~> cat /sys/kernel/sched_ext/enable_seq
 1

In this way user-space tools (such as Ubuntu's apport and similar) are
able to gather and include this information in bug reports.

Cc: Giovanni Gherdovich <giovanni.gherdovich@suse.com>
Cc: Kleber Sacilotto de Souza <kleber.souza@canonical.com>
Cc: Marcelo Henrique Cerri <marcelo.cerri@canonical.com>
Cc: Phil Auld <pauld@redhat.com>
Signed-off-by: Andrea Righi <andrea.righi@linux.dev>
Signed-off-by: Tejun Heo <tj@kernel.org>
2024-09-23 06:53:02 -10:00
Heiko Carstens
e08ec26928 tools: Add additional SYM_*() stubs to linkage.h
Similar to commit f8d92fc527 ("selftests: vDSO: fix include order in
build of test_vdso_chacha") add SYM_DATA_START, SYM_DATA_START_LOCAL, and
SYM_DATA_END stubs to tools/include/linux/linkage.h so that the proper
macros can be used within the kernel's vdso code as well as in the
vdso_test_chacha selftest.

Signed-off-by: Heiko Carstens <hca@linux.ibm.com>
Reviewed-by: Jens Remus <jremus@linux.ibm.com>
Signed-off-by: Vasily Gorbik <gor@linux.ibm.com>
2024-09-23 17:57:04 +02:00
John B. Wyatt IV
6c56fb4434 pm: cpupower: Clean up bindings gitignore
Add SPDX identifier to the gitignore. Remove the comment and .i file
since the file it references was removed in another patch. This patch
depends on Min-Hua Chen's 'pm: cpupower: rename raw_pylibcpupower.i'.

Signed-off-by: John B. Wyatt IV <jwyatt@redhat.com>
Signed-off-by: John B. Wyatt IV <sageofredondo@gmail.com>
Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
2024-09-23 09:06:03 -06:00
Linus Torvalds
af9c191ac2 ring-buffer: Updates for v6.12:
- Merged v6.11-rc3 into trace/ring-buffer/core
 
   The v6.10 ring buffer pull request was not made due to Mathieu Desnoyers
   making a comment to the pull request. Mathieu and I resolved it on IRC,
   but we did not let Linus know that it was resolved. Linus did not do the
   pull thinking it still had some unresolved issues.
 
   The ring buffer work for 6.12 was dependent on both this pull request as
   well as the reserve_mem kernel command line option that was going upstream
   through the memory management tree. The ring buffer repo was being used by
   others so it could not be rebased. In order to continue the work, the
   v6.11-rc3 branch was pulled in to get access to the reserve_mem work.
 
 This has the 6.11 pull request that did not make it into 6.11, which was:
 
   tracing/ring-buffer: Have persistent buffer across reboots
 
   This allows for the tracing instance ring buffer to stay persistent across
   reboots. The way this is done is by adding to the kernel command line:
 
     trace_instance=boot_map@0x285400000:12M
 
   This will reserve 12 megabytes at the address 0x285400000, and then map
   the tracing instance "boot_map" ring buffer to that memory. This will
   appear as a normal instance in the tracefs system:
 
     /sys/kernel/tracing/instances/boot_map
 
   A user could enable tracing in that instance, and on reboot or kernel
   crash, if the memory is not wiped by the firmware, it will recreate the
   trace in that instance. For example, if one was debugging a shutdown of a
   kernel reboot:
 
    # cd /sys/kernel/tracing
    # echo function > instances/boot_map/current_tracer
    # reboot
   [..]
    # cd /sys/kernel/tracing
    # tail instances/boot_map/trace
          swapper/0-1       [000] d..1.   164.549800: restore_boot_irq_mode <-native_machine_shutdown
          swapper/0-1       [000] d..1.   164.549801: native_restore_boot_irq_mode <-native_machine_shutdown
          swapper/0-1       [000] d..1.   164.549802: disconnect_bsp_APIC <-native_machine_shutdown
          swapper/0-1       [000] d..1.   164.549811: hpet_disable <-native_machine_shutdown
          swapper/0-1       [000] d..1.   164.549812: iommu_shutdown_noop <-native_machine_restart
          swapper/0-1       [000] d..1.   164.549813: native_machine_emergency_restart <-__do_sys_reboot
          swapper/0-1       [000] d..1.   164.549813: tboot_shutdown <-native_machine_emergency_restart
          swapper/0-1       [000] d..1.   164.549820: acpi_reboot <-native_machine_emergency_restart
          swapper/0-1       [000] d..1.   164.549821: acpi_reset <-acpi_reboot
          swapper/0-1       [000] d..1.   164.549822: acpi_os_write_port <-acpi_reboot
 
   On reboot, the buffer is examined to make sure it is valid. The validation
   check even steps through every event to make sure the meta data of the
   event is correct. If any test fails, it will simply reset the buffer, and
   the buffer will be empty on boot.
 
 The new changes for 6.12 are:
 
 - Allow the tracing persistent boot buffer to use the "reserve_mem" option
 
   Instead of having the admin find a physical address to store the persistent
   buffer, which can be very tedious if they have to administrate several
   different machines, allow them to use the "reserve_mem" option that will
   find a location for them. It is not as reliable because of KASLR, as the
   loading of the kernel in different locations can cause the memory
   allocated to be inconsistent. Booting with "nokaslr" can make reserve_mem
   more reliable.
 
 - Have function graph tracer handle offsets from a previous boot.
 
   The ring buffer output from a previous boot may have different addresses
   due to kaslr. Have the function graph tracer handle these by using the
   delta from the previous boot to the new boot address space.
 
 - Only reset the saved meta offset when the buffer is started or reset
 
   In the persistent memory meta data, it holds the previous address space
   information, so that it can calculate the delta to have function tracing
   work. But this gets updated after being read to hold the new address
   space. But if the buffer isn't used for that boot, on reboot, the delta is
   now calculated from the previous boot and not the boot that holds the data
   in the ring buffer. This causes the functions not to be shown. Do not save
   the address space information of the current kernel until it is being
   recorded.
 
 - Add a magic variable to test the valid meta data
 
   Add a magic variable in the meta data that can also be used for
   validation. The validator of the previous buffer doesn't need this magic
   data, but it can be used if the meta data is changed by a new kernel, which
   may have the same format that passes the validator but is used
   differently. This magic number can also be used as a "versioning" of the
   meta data.
 
 - Align user space mapped ring buffer sub buffers to improve TLB entries
 
   Linus mentioned that the mapped ring buffer sub buffers were misaligned
   between the meta page and the sub-buffers, so that if the sub-buffers were
   bigger than PAGE_SIZE, it wouldn't allow the TLB to use bigger entries.
 
 - Add new kernel command line "traceoff" to disable tracing on boot for instances
 
   If tracing is enabled for a boot instance, there needs a way to be able to
   disable it on boot so that new events do not get entered into the ring
   buffer and be mixed with events from a previous boot, as that can be
   confusing.
 
 - Allow trace_printk() to go to other instances
 
   Currently, trace_printk() can only go to the top level instance. When
   debugging with a persistent buffer, it is really useful to be able to add
   trace_printk() to go to that buffer, so that you have access to them after
   a crash.
 
 - Do not use "bin_printk()" for traces to a boot instance
 
   The bin_printk() saves only a pointer to the printk format in the ring
   buffer, as the reader of the buffer can still have access to it. But this
   is not the case if the buffer is from a previous boot. If the
   trace_printk() is going to a "persistent" buffer, it will use the slower
   version that writes the printk format into the buffer.
 
 - Add command line option to allow trace_printk() to go to an instance
 
   Allow the kernel command line to define which instance the trace_printk()
   goes to, instead of forcing the admin to set it for every boot via the
   tracefs options.
 
 - Start a document that explains how to use tracefs to debug the kernel
 
 - Add some more kernel selftests to test user mapped ring buffer
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Merge tag 'trace-ring-buffer-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace

Pull ring-buffer updates from Steven Rostedt:

 - tracing/ring-buffer: persistent buffer across reboots

   This allows for the tracing instance ring buffer to stay persistent
   across reboots. The way this is done is by adding to the kernel
   command line:

     trace_instance=boot_map@0x285400000:12M

   This will reserve 12 megabytes at the address 0x285400000, and then
   map the tracing instance "boot_map" ring buffer to that memory. This
   will appear as a normal instance in the tracefs system:

     /sys/kernel/tracing/instances/boot_map

   A user could enable tracing in that instance, and on reboot or kernel
   crash, if the memory is not wiped by the firmware, it will recreate
   the trace in that instance. For example, if one was debugging a
   shutdown of a kernel reboot:

     # cd /sys/kernel/tracing
     # echo function > instances/boot_map/current_tracer
     # reboot
     [..]
     # cd /sys/kernel/tracing
     # tail instances/boot_map/trace
           swapper/0-1       [000] d..1.   164.549800: restore_boot_irq_mode <-native_machine_shutdown
           swapper/0-1       [000] d..1.   164.549801: native_restore_boot_irq_mode <-native_machine_shutdown
           swapper/0-1       [000] d..1.   164.549802: disconnect_bsp_APIC <-native_machine_shutdown
           swapper/0-1       [000] d..1.   164.549811: hpet_disable <-native_machine_shutdown
           swapper/0-1       [000] d..1.   164.549812: iommu_shutdown_noop <-native_machine_restart
           swapper/0-1       [000] d..1.   164.549813: native_machine_emergency_restart <-__do_sys_reboot
           swapper/0-1       [000] d..1.   164.549813: tboot_shutdown <-native_machine_emergency_restart
           swapper/0-1       [000] d..1.   164.549820: acpi_reboot <-native_machine_emergency_restart
           swapper/0-1       [000] d..1.   164.549821: acpi_reset <-acpi_reboot
           swapper/0-1       [000] d..1.   164.549822: acpi_os_write_port <-acpi_reboot

   On reboot, the buffer is examined to make sure it is valid. The
   validation check even steps through every event to make sure the meta
   data of the event is correct. If any test fails, it will simply reset
   the buffer, and the buffer will be empty on boot.

 - Allow the tracing persistent boot buffer to use the "reserve_mem"
   option

   Instead of having the admin find a physical address to store the
   persistent buffer, which can be very tedious if they have to
   administrate several different machines, allow them to use the
   "reserve_mem" option that will find a location for them. It is not as
   reliable because of KASLR, as the loading of the kernel in different
   locations can cause the memory allocated to be inconsistent. Booting
   with "nokaslr" can make reserve_mem more reliable.

 - Have function graph tracer handle offsets from a previous boot.

   The ring buffer output from a previous boot may have different
   addresses due to kaslr. Have the function graph tracer handle these
   by using the delta from the previous boot to the new boot address
   space.

 - Only reset the saved meta offset when the buffer is started or reset

   In the persistent memory meta data, it holds the previous address
   space information, so that it can calculate the delta to have
   function tracing work. But this gets updated after being read to hold
   the new address space. But if the buffer isn't used for that boot, on
   reboot, the delta is now calculated from the previous boot and not
   the boot that holds the data in the ring buffer. This causes the
   functions not to be shown. Do not save the address space information
   of the current kernel until it is being recorded.

 - Add a magic variable to test the valid meta data

   Add a magic variable in the meta data that can also be used for
   validation. The validator of the previous buffer doesn't need this
   magic data, but it can be used if the meta data is changed by a new
   kernel, which may have the same format that passes the validator but
   is used differently. This magic number can also be used as a
   "versioning" of the meta data.

 - Align user space mapped ring buffer sub buffers to improve TLB
   entries

   Linus mentioned that the mapped ring buffer sub buffers were
   misaligned between the meta page and the sub-buffers, so that if the
   sub-buffers were bigger than PAGE_SIZE, it wouldn't allow the TLB to
   use bigger entries.

 - Add new kernel command line "traceoff" to disable tracing on boot for
   instances

   If tracing is enabled for a boot instance, there needs a way to be
   able to disable it on boot so that new events do not get entered into
   the ring buffer and be mixed with events from a previous boot, as
   that can be confusing.

 - Allow trace_printk() to go to other instances

   Currently, trace_printk() can only go to the top level instance. When
   debugging with a persistent buffer, it is really useful to be able to
   add trace_printk() to go to that buffer, so that you have access to
   them after a crash.

 - Do not use "bin_printk()" for traces to a boot instance

   The bin_printk() saves only a pointer to the printk format in the
   ring buffer, as the reader of the buffer can still have access to it.
   But this is not the case if the buffer is from a previous boot. If
   the trace_printk() is going to a "persistent" buffer, it will use the
   slower version that writes the printk format into the buffer.

 - Add command line option to allow trace_printk() to go to an instance

   Allow the kernel command line to define which instance the
   trace_printk() goes to, instead of forcing the admin to set it for
   every boot via the tracefs options.

 - Start a document that explains how to use tracefs to debug the kernel

 - Add some more kernel selftests to test user mapped ring buffer

* tag 'trace-ring-buffer-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/trace/linux-trace: (28 commits)
  selftests/ring-buffer: Handle meta-page bigger than the system
  selftests/ring-buffer: Verify the entire meta-page padding
  tracing/Documentation: Start a document on how to debug with tracing
  tracing: Add option to set an instance to be the trace_printk destination
  tracing: Have trace_printk not use binary prints if boot buffer
  tracing: Allow trace_printk() to go to other instance buffers
  tracing: Add "traceoff" flag to boot time tracing instances
  ring-buffer: Align meta-page to sub-buffers for improved TLB usage
  ring-buffer: Add magic and struct size to boot up meta data
  ring-buffer: Don't reset persistent ring-buffer meta saved addresses
  tracing/fgraph: Have fgraph handle previous boot function addresses
  tracing: Allow boot instances to use reserve_mem boot memory
  tracing: Fix ifdef of snapshots to not prevent last_boot_info file
  ring-buffer: Use vma_pages() helper function
  tracing: Fix NULL vs IS_ERR() check in enable_instances()
  tracing: Add last boot delta offset for stack traces
  tracing: Update function tracing output for previous boot buffer
  tracing: Handle old buffer mappings for event strings and functions
  tracing/ring-buffer: Add last_boot_info file to boot instance
  ring-buffer: Save text and data locations in mapped meta data
  ...
2024-09-22 09:47:16 -07:00
Linus Torvalds
dd609b8a3a ktest.pl updates for 6.12:
- Add notification of build warnings for all tests
 
   Currently, the build will only fail on warnings if the ktest config file
   states that it should fail or if the compile is done with -Werror. This
   has allowed warnings to sneak in if it doesn't fail. Add a notification at
   the end of the test that will state that warnings were found in the build
   so that the developer will be aware of it.
 
 - Fix the grub2 parser to not return the wrong kernel index
 
   ktest.pl can read the grub.cfg file to know what kernel to boot to via
   grub-reboot. This requires knowing the index that the kernel is referenced
   by in the grub.cfg file. Some distros have logic to determine the
   menuentry that can cause the ktest.pl to come up with the wrong index and
   boot the wrong kernel.
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Merge tag 'ktest-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest

Pull ktest updates from Steven Rostedt:

 - Add notification of build warnings for all tests

   Currently, the build will only fail on warnings if the ktest config
   file states that it should fail or if the compile is done with
   '-Werror'. This has allowed warnings to sneak in if it doesn't fail.

   Add a notification at the end of the test that will state that
   warnings were found in the build so that the developer will be aware
   of it.

 - Fix the grub2 parser to not return the wrong kernel index

   ktest.pl can read the grub.cfg file to know what kernel to boot to
   via grub-reboot. This requires knowing the index that the kernel is
   referenced by in the grub.cfg file. Some distros have logic to
   determine the menuentry that can cause the ktest.pl to come up with
   the wrong index and boot the wrong kernel.

* tag 'ktest-v6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/rostedt/linux-ktest:
  ktest.pl: Avoid false positives with grub2 skip regex
  ktest.pl: Always warn on build warnings
2024-09-22 09:36:15 -07:00
Linus Torvalds
891e8abed5 perf tools improvements and fixes for v6.12:
- Use BPF + BTF to collect and pretty print syscall and tracepoint arguments in
   'perf trace', done as an GSoC activity.
 
 - Data-type profiling improvements:
 
   - Cache debuginfo to speed up data type resolution.
 
   - Add the 'typecln' sort order, to show which cacheline in a target is hot or
     cold. The following shows members in the cfs_rq's first cache line:
 
       $ perf report -s type,typecln,typeoff -H
       ...
       -    2.67%        struct cfs_rq
          +    1.23%        struct cfs_rq: cache-line 2
          +    0.57%        struct cfs_rq: cache-line 4
          +    0.46%        struct cfs_rq: cache-line 6
          -    0.41%        struct cfs_rq: cache-line 0
                  0.39%        struct cfs_rq +0x14 (h_nr_running)
                  0.02%        struct cfs_rq +0x38 (tasks_timeline.rb_leftmost)
 
   - When a typedef resolves to a unnamed struct, use the typedef name.
 
   - When a struct has just one basic type field (int, etc), resolve the type
     sort order to the name of the struct, not the type of the field.
 
   - Support type folding/unfolding in the data-type annotation TUI.
 
   - Fix bitfields offsets and sizes.
 
   - Initial support for PowerPC, using libcapstone and the usual objdump
     disassembly parsing routines.
 
 - Add support for disassembling and addr2line using the LLVM libraries,
   speeding up those operations.
 
 - Support --addr2line option in 'perf script' as with other tools.
 
 - Intel branch counters (LBR event logging) support, only available in recent
   Intel processors, for instance, the new "brcntr" field can be asked from
   'perf script' to print the information collected from this feature:
 
   $ perf script -F +brstackinsn,+brcntr
 
   # Branch counter abbr list:
   # branch-instructions:ppp = A
   # branch-misses = B
   # '-' No event occurs
   # '+' Event occurrences may be lost due to branch counter saturated
       tchain_edit  332203 3366329.405674:  53030 branch-instructions:ppp:    401781 f3+0x2c (home/sdp/test/tchain_edit)
          f3+31:
       0000000000401774   insn: eb 04                  br_cntr: AA  # PRED 5 cycles [5]
       000000000040177a   insn: 81 7d fc 0f 27 00 00
       0000000000401781   insn: 7e e3                  br_cntr: A   # PRED 1 cycles [6] 2.00 IPC
       0000000000401766   insn: 8b 45 fc
       0000000000401769   insn: 83 e0 01
       000000000040176c   insn: 85 c0
       000000000040176e   insn: 74 06                  br_cntr: A   # PRED 1 cycles [7] 4.00 IPC
       0000000000401776   insn: 83 45 fc 01
       000000000040177a   insn: 81 7d fc 0f 27 00 00
       0000000000401781   insn: 7e e3                  br_cntr: A   # PRED 7 cycles [14] 0.43 IPC
 
 - Support Timed PEBS (Precise Event-Based Sampling), a recent hardware feature
   in Intel processors.
 
 - Add 'perf ftrace profile' subcommand, using ftrace's function-graph tracer so
   that users can see the total, average, max execution time as well as the
   number of invocations easily, for instance:
 
   $ sudo perf ftrace profile -G __x64_sys_perf_event_open -- \
     perf stat -e cycles -C1 true 2> /dev/null | head
   # Total (us)  Avg (us)  Max (us)  Count  Function
         65.611    65.611    65.611      1  __x64_sys_perf_event_open
         30.527    30.527    30.527      1  anon_inode_getfile
         30.260    30.260    30.260      1  __anon_inode_getfile
         29.700    29.700    29.700      1  alloc_file_pseudo
         17.578    17.578    17.578      1  d_alloc_pseudo
         17.382    17.382    17.382      1  __d_alloc
         16.738    16.738    16.738      1  kmem_cache_alloc_lru
         15.686    15.686    15.686      1  perf_event_alloc
         14.012     7.006    11.264      2  obj_cgroup_charge
   #
 
 - 'perf sched timehist' improvements, including the addition of priority
   showing/filtering command line options.
 
 - Varios improvements to the 'perf probe', including 'perf test' regression
   testings.
 
 - Introduce the 'perf check', initially to check if some feature is in place,
   using it in 'perf test'.
 
 - Various fixes for 32-bit systems.
 
 - Address more leak sanitizer failures.
 
 - Fix memory leaks (LBR, disasm lock ops, etc).
 
 - More reference counting fixes (branch_info, etc).
 
 - Constify 'struct perf_tool' parameters to improve code generation and reduce
   the chances of having its internals changed, which isn't expected.
 
 - More constifications in various other places.
 
 - Add more build tests, including for JEVENTS.
 
 - Add more 'perf test' entries ('perf record LBR', pipe/inject, --setup-filter,
   'perf ftrace', 'cgroup sampling', etc).
 
 - Inject build ids for all entries in a call chain in 'perf inject', not just
   for the main sample.
 
 - Improve the BPF based sample filter, allowing root to setup filters in bpffs
   that then can be used by non-root users.
 
 - Allow filtering by cgroups with the BPF based sample filter.
 
 - Allow a more compact way for 'perf mem report' using the -T/--type-profile and
   also provide a --sort option similar to the one in 'perf report', 'perf top',
   to setup the sort order manually.
 
 - Fix --group behavior in 'perf annotate' when leader has no samples, where it
   was not showing anything even when other events in the group had samples.
 
 - Fix spinlock and rwlock accounting in 'perf lock contention'
 
 - Fix libsubcmd fixdep Makefile dependencies.
 
 - Improve 'perf ftrace' error message when ftrace isn't available.
 
 - Update various Intel JSON vendor event files.
 
 - ARM64 CoreSight hardware tracing infrastructure improvements, mostly not
   visible to users.
 
 - Update power10 JSON events.
 
 Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
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Merge tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools

Pull perf tools updates from Arnaldo Carvalho de Melo:

 - Use BPF + BTF to collect and pretty print syscall and tracepoint
   arguments in 'perf trace', done as an GSoC activity

 - Data-type profiling improvements:

     - Cache debuginfo to speed up data type resolution

     - Add the 'typecln' sort order, to show which cacheline in a target
       is hot or cold. The following shows members in the cfs_rq's first
       cache line:

         $ perf report -s type,typecln,typeoff -H
         ...
         -    2.67%        struct cfs_rq
            +    1.23%        struct cfs_rq: cache-line 2
            +    0.57%        struct cfs_rq: cache-line 4
            +    0.46%        struct cfs_rq: cache-line 6
            -    0.41%        struct cfs_rq: cache-line 0
                    0.39%        struct cfs_rq +0x14 (h_nr_running)
                    0.02%        struct cfs_rq +0x38 (tasks_timeline.rb_leftmost)

     - When a typedef resolves to a unnamed struct, use the typedef name

     - When a struct has just one basic type field (int, etc), resolve
       the type sort order to the name of the struct, not the type of
       the field

     - Support type folding/unfolding in the data-type annotation TUI

     - Fix bitfields offsets and sizes

     - Initial support for PowerPC, using libcapstone and the usual
       objdump disassembly parsing routines

 - Add support for disassembling and addr2line using the LLVM libraries,
   speeding up those operations

 - Support --addr2line option in 'perf script' as with other tools

 - Intel branch counters (LBR event logging) support, only available in
   recent Intel processors, for instance, the new "brcntr" field can be
   asked from 'perf script' to print the information collected from this
   feature:

     $ perf script -F +brstackinsn,+brcntr

     # Branch counter abbr list:
     # branch-instructions:ppp = A
     # branch-misses = B
     # '-' No event occurs
     # '+' Event occurrences may be lost due to branch counter saturated
         tchain_edit  332203 3366329.405674:  53030 branch-instructions:ppp:    401781 f3+0x2c (home/sdp/test/tchain_edit)
            f3+31:
         0000000000401774   insn: eb 04                  br_cntr: AA  # PRED 5 cycles [5]
         000000000040177a   insn: 81 7d fc 0f 27 00 00
         0000000000401781   insn: 7e e3                  br_cntr: A   # PRED 1 cycles [6] 2.00 IPC
         0000000000401766   insn: 8b 45 fc
         0000000000401769   insn: 83 e0 01
         000000000040176c   insn: 85 c0
         000000000040176e   insn: 74 06                  br_cntr: A   # PRED 1 cycles [7] 4.00 IPC
         0000000000401776   insn: 83 45 fc 01
         000000000040177a   insn: 81 7d fc 0f 27 00 00
         0000000000401781   insn: 7e e3                  br_cntr: A   # PRED 7 cycles [14] 0.43 IPC

 - Support Timed PEBS (Precise Event-Based Sampling), a recent hardware
   feature in Intel processors

 - Add 'perf ftrace profile' subcommand, using ftrace's function-graph
   tracer so that users can see the total, average, max execution time
   as well as the number of invocations easily, for instance:

     $ sudo perf ftrace profile -G __x64_sys_perf_event_open -- \
       perf stat -e cycles -C1 true 2> /dev/null | head
     # Total (us)  Avg (us)  Max (us)  Count  Function
           65.611    65.611    65.611      1  __x64_sys_perf_event_open
           30.527    30.527    30.527      1  anon_inode_getfile
           30.260    30.260    30.260      1  __anon_inode_getfile
           29.700    29.700    29.700      1  alloc_file_pseudo
           17.578    17.578    17.578      1  d_alloc_pseudo
           17.382    17.382    17.382      1  __d_alloc
           16.738    16.738    16.738      1  kmem_cache_alloc_lru
           15.686    15.686    15.686      1  perf_event_alloc
           14.012     7.006    11.264      2  obj_cgroup_charge

 - 'perf sched timehist' improvements, including the addition of
   priority showing/filtering command line options

 - Varios improvements to the 'perf probe', including 'perf test'
   regression testings

 - Introduce the 'perf check', initially to check if some feature is
   in place, using it in 'perf test'

 - Various fixes for 32-bit systems

 - Address more leak sanitizer failures

 - Fix memory leaks (LBR, disasm lock ops, etc)

 - More reference counting fixes (branch_info, etc)

 - Constify 'struct perf_tool' parameters to improve code generation
   and reduce the chances of having its internals changed, which isn't
   expected

 - More constifications in various other places

 - Add more build tests, including for JEVENTS

 - Add more 'perf test' entries ('perf record LBR', pipe/inject,
   --setup-filter, 'perf ftrace', 'cgroup sampling', etc)

 - Inject build ids for all entries in a call chain in 'perf inject',
   not just for the main sample

 - Improve the BPF based sample filter, allowing root to setup filters
   in bpffs that then can be used by non-root users

 - Allow filtering by cgroups with the BPF based sample filter

 - Allow a more compact way for 'perf mem report' using the
   -T/--type-profile and also provide a --sort option similar to the one
   in 'perf report', 'perf top', to setup the sort order manually

 - Fix --group behavior in 'perf annotate' when leader has no samples,
   where it was not showing anything even when other events in the group
   had samples

 - Fix spinlock and rwlock accounting in 'perf lock contention'

 - Fix libsubcmd fixdep Makefile dependencies

 - Improve 'perf ftrace' error message when ftrace isn't available

 - Update various Intel JSON vendor event files

 - ARM64 CoreSight hardware tracing infrastructure improvements, mostly
   not visible to users

 - Update power10 JSON events

* tag 'perf-tools-for-v6.12-1-2024-09-19' of git://git.kernel.org/pub/scm/linux/kernel/git/perf/perf-tools: (310 commits)
  perf trace: Mark the 'head' arg in the set_robust_list syscall as coming from user space
  perf trace: Mark the 'rseq' arg in the rseq syscall as coming from user space
  perf env: Find correct branch counter info on hybrid
  perf evlist: Print hint for group
  tools: Drop nonsensical -O6
  perf pmu: To info add event_type_desc
  perf evsel: Add accessor for tool_event
  perf pmus: Fake PMU clean up
  perf list: Avoid potential out of bounds memory read
  perf help: Fix a typo ("bellow")
  perf ftrace: Detect whether ftrace is enabled on system
  perf test shell probe_vfs_getname: Remove extraneous '=' from probe line number regex
  perf build: Require at least clang 16.0.6 to build BPF skeletons
  perf trace: If a syscall arg is marked as 'const', assume it is coming _from_ userspace
  perf parse-events: Remove duplicated include in parse-events.c
  perf callchain: Allow symbols to be optional when resolving a callchain
  perf inject: Lazy build-id mmap2 event insertion
  perf inject: Add new mmap2-buildid-all option
  perf inject: Fix build ID injection
  perf annotate-data: Add pr_debug_scope()
  ...
2024-09-22 09:11:14 -07:00
Linus Torvalds
88264981f2 sched_ext: Initial pull request for v6.12
This is the initial pull request of sched_ext. The v7 patchset
 (https://lkml.kernel.org/r/20240618212056.2833381-1-tj@kernel.org) is
 applied on top of tip/sched/core + bpf/master as of Jun 18th.
 
   tip/sched/core 793a62823d1c ("sched/core: Drop spinlocks on contention iff kernel is preempti
 ble")
   bpf/master f6afdaf72a ("Merge branch 'bpf-support-resilient-split-btf'")
 
 Since then, the following pulls were made:
 
 - v6.11-rc1 is pulled to keep up with the mainline.
 
 - tip/sched/core was pulled several times:
 
   - 7b9f6c864a, 0df340ceae, 5ac998574f, 0b1777f0fa: To resolve
     conflicts. See each commit for details on conflicts and their
     resolutions.
 
   - d7b01aef9d: To receive fd03c5b858 ("sched: Rework pick_next_task()")
     and related commits. @prev in added to sched_class->put_prev_task() and
     put_prev_task() is reordered after ->pick_task(), which makes
     sched_class->switch_class() unnecessary. The follow-up commits update
     sched_ext accordingly and drop sched_class->switch_class().
 
 - bpf/master was pulled to receive baebe9aaba ("bpf: allow passing struct
   bpf_iter_<type> as kfunc arguments") and related changes in preparation
   for the DSQ iterator patchset
 
 To obtain the net sched_ext changes, diff against:
 
   git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext.git for-6.12-base
 
 which is the merge of:
 
   tip/sched/core bc9057da1a ("sched/cpufreq: Use NSEC_PER_MSEC for deadline task")
   bpf/master 2ad6d23f46 ("selftests/bpf: Do not update vmlinux.h unnecessarily")
 
 Since the v7 patchset, the following changes were made:
 
 - cpuperf support which was a part of the v6 patchset was posted separately
   and then applied after reviews.
 
 - cgroup support which was a part of the v6 patchset was posted seprately,
   iterated and then applied.
 
 - Improve integration with sched core.
 
 - Double locking usage in migration paths dropped. Depend on
   TASK_ON_RQ_MIGRATING synchronization instead.
 
 - The BPF scheduler couldn't directly dispatch to the local DSQ of another
   CPU using a SCX_DSQ_LOCAL_ON verdict. This caused difficulties around
   handling non-wakeup enqueues. Updated so that SCX_DSQ_LOCAL_ON can be used
   in the enqueue path too.
 
 - DSQ iterator which was a part of the v6 patchset was posted separately.
   The iterator itself was applied after a couple revisions. The associated
   selective consumption kfunc can use further improvements and is still
   being worked on.
 
 - scx_bpf_dispatch[_vtime]_from_dsq() added to increase flexibility. A task
   can now be transferred between two DSQs from almost any context. This
   involved significant refactoring of migration code.
 
 - Various fixes and improvements.
 
 As the branch is based on top of tip/sched/core + bpf/master, please merge
 after both are applied.
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Merge tag 'sched_ext-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext

Pull sched_ext support from Tejun Heo:
 "This implements a new scheduler class called ‘ext_sched_class’, or
  sched_ext, which allows scheduling policies to be implemented as BPF
  programs.

  The goals of this are:

   - Ease of experimentation and exploration: Enabling rapid iteration
     of new scheduling policies.

   - Customization: Building application-specific schedulers which
     implement policies that are not applicable to general-purpose
     schedulers.

   - Rapid scheduler deployments: Non-disruptive swap outs of scheduling
     policies in production environments"

See individual commits for more documentation, but also the cover letter
for the latest series:

Link: https://lore.kernel.org/all/20240618212056.2833381-1-tj@kernel.org/

* tag 'sched_ext-for-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/sched_ext: (110 commits)
  sched: Move update_other_load_avgs() to kernel/sched/pelt.c
  sched_ext: Don't trigger ops.quiescent/runnable() on migrations
  sched_ext: Synchronize bypass state changes with rq lock
  scx_qmap: Implement highpri boosting
  sched_ext: Implement scx_bpf_dispatch[_vtime]_from_dsq()
  sched_ext: Compact struct bpf_iter_scx_dsq_kern
  sched_ext: Replace consume_local_task() with move_local_task_to_local_dsq()
  sched_ext: Move consume_local_task() upward
  sched_ext: Move sanity check and dsq_mod_nr() into task_unlink_from_dsq()
  sched_ext: Reorder args for consume_local/remote_task()
  sched_ext: Restructure dispatch_to_local_dsq()
  sched_ext: Fix processs_ddsp_deferred_locals() by unifying DTL_INVALID handling
  sched_ext: Make find_dsq_for_dispatch() handle SCX_DSQ_LOCAL_ON
  sched_ext: Refactor consume_remote_task()
  sched_ext: Rename scx_kfunc_set_sleepable to unlocked and relocate
  sched_ext: Add missing static to scx_dump_data
  sched_ext: Add missing static to scx_has_op[]
  sched_ext: Temporarily work around pick_task_scx() being called without balance_scx()
  sched_ext: Add a cgroup scheduler which uses flattened hierarchy
  sched_ext: Add cgroup support
  ...
2024-09-21 09:44:57 -07:00
Linus Torvalds
440b652328 bpf-next-6.12
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Merge tag 'bpf-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next

Pull bpf updates from Alexei Starovoitov:

 - Introduce '__attribute__((bpf_fastcall))' for helpers and kfuncs with
   corresponding support in LLVM.

   It is similar to existing 'no_caller_saved_registers' attribute in
   GCC/LLVM with a provision for backward compatibility. It allows
   compilers generate more efficient BPF code assuming the verifier or
   JITs will inline or partially inline a helper/kfunc with such
   attribute. bpf_cast_to_kern_ctx, bpf_rdonly_cast,
   bpf_get_smp_processor_id are the first set of such helpers.

 - Harden and extend ELF build ID parsing logic.

   When called from sleepable context the relevants parts of ELF file
   will be read to find and fetch .note.gnu.build-id information. Also
   harden the logic to avoid TOCTOU, overflow, out-of-bounds problems.

 - Improvements and fixes for sched-ext:
    - Allow passing BPF iterators as kfunc arguments
    - Make the pointer returned from iter_next method trusted
    - Fix x86 JIT convergence issue due to growing/shrinking conditional
      jumps in variable length encoding

 - BPF_LSM related:
    - Introduce few VFS kfuncs and consolidate them in
      fs/bpf_fs_kfuncs.c
    - Enforce correct range of return values from certain LSM hooks
    - Disallow attaching to other LSM hooks

 - Prerequisite work for upcoming Qdisc in BPF:
    - Allow kptrs in program provided structs
    - Support for gen_epilogue in verifier_ops

 - Important fixes:
    - Fix uprobe multi pid filter check
    - Fix bpf_strtol and bpf_strtoul helpers
    - Track equal scalars history on per-instruction level
    - Fix tailcall hierarchy on x86 and arm64
    - Fix signed division overflow to prevent INT_MIN/-1 trap on x86
    - Fix get kernel stack in BPF progs attached to tracepoint:syscall

 - Selftests:
    - Add uprobe bench/stress tool
    - Generate file dependencies to drastically improve re-build time
    - Match JIT-ed and BPF asm with __xlated/__jited keywords
    - Convert older tests to test_progs framework
    - Add support for RISC-V
    - Few fixes when BPF programs are compiled with GCC-BPF backend
      (support for GCC-BPF in BPF CI is ongoing in parallel)
    - Add traffic monitor
    - Enable cross compile and musl libc

* tag 'bpf-next-6.12' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (260 commits)
  btf: require pahole 1.21+ for DEBUG_INFO_BTF with default DWARF version
  btf: move pahole check in scripts/link-vmlinux.sh to lib/Kconfig.debug
  btf: remove redundant CONFIG_BPF test in scripts/link-vmlinux.sh
  bpf: Call the missed kfree() when there is no special field in btf
  bpf: Call the missed btf_record_free() when map creation fails
  selftests/bpf: Add a test case to write mtu result into .rodata
  selftests/bpf: Add a test case to write strtol result into .rodata
  selftests/bpf: Rename ARG_PTR_TO_LONG test description
  selftests/bpf: Fix ARG_PTR_TO_LONG {half-,}uninitialized test
  bpf: Zero former ARG_PTR_TO_{LONG,INT} args in case of error
  bpf: Improve check_raw_mode_ok test for MEM_UNINIT-tagged types
  bpf: Fix helper writes to read-only maps
  bpf: Remove truncation test in bpf_strtol and bpf_strtoul helpers
  bpf: Fix bpf_strtol and bpf_strtoul helpers for 32bit
  selftests/bpf: Add tests for sdiv/smod overflow cases
  bpf: Fix a sdiv overflow issue
  libbpf: Add bpf_object__token_fd accessor
  docs/bpf: Add missing BPF program types to docs
  docs/bpf: Add constant values for linkages
  bpf: Use fake pt_regs when doing bpf syscall tracepoint tracing
  ...
2024-09-21 09:27:50 -07:00
Linus Torvalds
7856a56541 Many singleton patches - please see the various changelogs for details.
Quite a lot of nilfs2 work this time around.
 
 Notable patch series in this pull request are:
 
 "mul_u64_u64_div_u64: new implementation" by Nicolas Pitre, with
 assistance from Uwe Kleine-König.  Reimplement mul_u64_u64_div_u64() to
 provide (much) more accurate results.  The current implementation was
 causing Uwe some issues in the PWM drivers.
 
 "xz: Updates to license, filters, and compression options" from Lasse
 Collin.  Miscellaneous maintenance and kinor feature work to the xz
 decompressor.
 
 "Fix some GDB command error and add some GDB commands" from Kuan-Ying Lee.
 Fixes and enhancements to the gdb scripts.
 
 "treewide: add missing MODULE_DESCRIPTION() macros" from Jeff Johnson.
 Adds lots of MODULE_DESCRIPTIONs, thus fixing lots of warnings about this.
 
 "nilfs2: add support for some common ioctls" from Ryusuke Konishi.  Adds
 various commonly-available ioctls to nilfs2.
 
 "This series fixes a number of formatting issues in kernel doc comments"
 from Ryusuke Konishi does that.
 
 "nilfs2: prevent unexpected ENOENT propagation" from Ryusuke Konishi.  Fix
 issues where -ENOENT was being unintentionally and inappropriately
 returned to userspace.
 
 "nilfs2: assorted cleanups" from Huang Xiaojia.
 
 "nilfs2: fix potential issues with empty b-tree nodes" from Ryusuke
 Konishi fixes some issues which can occur on corrupted nilfs2 filesystems.
 
 "scripts/decode_stacktrace.sh: improve error reporting and usability" from
 Luca Ceresoli does those things.
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Merge tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull non-MM updates from Andrew Morton:
 "Many singleton patches - please see the various changelogs for
  details.

  Quite a lot of nilfs2 work this time around.

  Notable patch series in this pull request are:

   - "mul_u64_u64_div_u64: new implementation" by Nicolas Pitre, with
     assistance from Uwe Kleine-König. Reimplement mul_u64_u64_div_u64()
     to provide (much) more accurate results. The current implementation
     was causing Uwe some issues in the PWM drivers.

   - "xz: Updates to license, filters, and compression options" from
     Lasse Collin. Miscellaneous maintenance and kinor feature work to
     the xz decompressor.

   - "Fix some GDB command error and add some GDB commands" from
     Kuan-Ying Lee. Fixes and enhancements to the gdb scripts.

   - "treewide: add missing MODULE_DESCRIPTION() macros" from Jeff
     Johnson. Adds lots of MODULE_DESCRIPTIONs, thus fixing lots of
     warnings about this.

   - "nilfs2: add support for some common ioctls" from Ryusuke Konishi.
     Adds various commonly-available ioctls to nilfs2.

   - "This series fixes a number of formatting issues in kernel doc
     comments" from Ryusuke Konishi does that.

   - "nilfs2: prevent unexpected ENOENT propagation" from Ryusuke
     Konishi. Fix issues where -ENOENT was being unintentionally and
     inappropriately returned to userspace.

   - "nilfs2: assorted cleanups" from Huang Xiaojia.

   - "nilfs2: fix potential issues with empty b-tree nodes" from Ryusuke
     Konishi fixes some issues which can occur on corrupted nilfs2
     filesystems.

   - "scripts/decode_stacktrace.sh: improve error reporting and
     usability" from Luca Ceresoli does those things"

* tag 'mm-nonmm-stable-2024-09-21-07-52' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (103 commits)
  list: test: increase coverage of list_test_list_replace*()
  list: test: fix tests for list_cut_position()
  proc: use __auto_type more
  treewide: correct the typo 'retun'
  ocfs2: cleanup return value and mlog in ocfs2_global_read_info()
  nilfs2: remove duplicate 'unlikely()' usage
  nilfs2: fix potential oob read in nilfs_btree_check_delete()
  nilfs2: determine empty node blocks as corrupted
  nilfs2: fix potential null-ptr-deref in nilfs_btree_insert()
  user_namespace: use kmemdup_array() instead of kmemdup() for multiple allocation
  tools/mm: rm thp_swap_allocator_test when make clean
  squashfs: fix percpu address space issues in decompressor_multi_percpu.c
  lib: glob.c: added null check for character class
  nilfs2: refactor nilfs_segctor_thread()
  nilfs2: use kthread_create and kthread_stop for the log writer thread
  nilfs2: remove sc_timer_task
  nilfs2: do not repair reserved inode bitmap in nilfs_new_inode()
  nilfs2: eliminate the shared counter and spinlock for i_generation
  nilfs2: separate inode type information from i_state field
  nilfs2: use the BITS_PER_LONG macro
  ...
2024-09-21 08:20:50 -07:00
Linus Torvalds
617a814f14 ALong with the usual shower of singleton patches, notable patch series in
this pull request are:
 
 "Align kvrealloc() with krealloc()" from Danilo Krummrich.  Adds
 consistency to the APIs and behaviour of these two core allocation
 functions.  This also simplifies/enables Rustification.
 
 "Some cleanups for shmem" from Baolin Wang.  No functional changes - mode
 code reuse, better function naming, logic simplifications.
 
 "mm: some small page fault cleanups" from Josef Bacik.  No functional
 changes - code cleanups only.
 
 "Various memory tiering fixes" from Zi Yan.  A small fix and a little
 cleanup.
 
 "mm/swap: remove boilerplate" from Yu Zhao.  Code cleanups and
 simplifications and .text shrinkage.
 
 "Kernel stack usage histogram" from Pasha Tatashin and Shakeel Butt.  This
 is a feature, it adds new feilds to /proc/vmstat such as
 
     $ grep kstack /proc/vmstat
     kstack_1k 3
     kstack_2k 188
     kstack_4k 11391
     kstack_8k 243
     kstack_16k 0
 
 which tells us that 11391 processes used 4k of stack while none at all
 used 16k.  Useful for some system tuning things, but partivularly useful
 for "the dynamic kernel stack project".
 
 "kmemleak: support for percpu memory leak detect" from Pavel Tikhomirov.
 Teaches kmemleak to detect leaksage of percpu memory.
 
 "mm: memcg: page counters optimizations" from Roman Gushchin.  "3
 independent small optimizations of page counters".
 
 "mm: split PTE/PMD PT table Kconfig cleanups+clarifications" from David
 Hildenbrand.  Improves PTE/PMD splitlock detection, makes powerpc/8xx work
 correctly by design rather than by accident.
 
 "mm: remove arch_make_page_accessible()" from David Hildenbrand.  Some
 folio conversions which make arch_make_page_accessible() unneeded.
 
 "mm, memcg: cg2 memory{.swap,}.peak write handlers" fro David Finkel.
 Cleans up and fixes our handling of the resetting of the cgroup/process
 peak-memory-use detector.
 
 "Make core VMA operations internal and testable" from Lorenzo Stoakes.
 Rationalizaion and encapsulation of the VMA manipulation APIs.  With a
 view to better enable testing of the VMA functions, even from a
 userspace-only harness.
 
 "mm: zswap: fixes for global shrinker" from Takero Funaki.  Fix issues in
 the zswap global shrinker, resulting in improved performance.
 
 "mm: print the promo watermark in zoneinfo" from Kaiyang Zhao.  Fill in
 some missing info in /proc/zoneinfo.
 
 "mm: replace follow_page() by folio_walk" from David Hildenbrand.  Code
 cleanups and rationalizations (conversion to folio_walk()) resulting in
 the removal of follow_page().
 
 "improving dynamic zswap shrinker protection scheme" from Nhat Pham.  Some
 tuning to improve zswap's dynamic shrinker.  Significant reductions in
 swapin and improvements in performance are shown.
 
 "mm: Fix several issues with unaccepted memory" from Kirill Shutemov.
 Improvements to the new unaccepted memory feature,
 
 "mm/mprotect: Fix dax puds" from Peter Xu.  Implements mprotect on DAX
 PUDs.  This was missing, although nobody seems to have notied yet.
 
 "Introduce a store type enum for the Maple tree" from Sidhartha Kumar.
 Cleanups and modest performance improvements for the maple tree library
 code.
 
 "memcg: further decouple v1 code from v2" from Shakeel Butt.  Move more
 cgroup v1 remnants away from the v2 memcg code.
 
 "memcg: initiate deprecation of v1 features" from Shakeel Butt.  Adds
 various warnings telling users that memcg v1 features are deprecated.
 
 "mm: swap: mTHP swap allocator base on swap cluster order" from Chris Li.
 Greatly improves the success rate of the mTHP swap allocation.
 
 "mm: introduce numa_memblks" from Mike Rapoport.  Moves various disparate
 per-arch implementations of numa_memblk code into generic code.
 
 "mm: batch free swaps for zap_pte_range()" from Barry Song.  Greatly
 improves the performance of munmap() of swap-filled ptes.
 
 "support large folio swap-out and swap-in for shmem" from Baolin Wang.
 With this series we no longer split shmem large folios into simgle-page
 folios when swapping out shmem.
 
 "mm/hugetlb: alloc/free gigantic folios" from Yu Zhao.  Nice performance
 improvements and code reductions for gigantic folios.
 
 "support shmem mTHP collapse" from Baolin Wang.  Adds support for
 khugepaged's collapsing of shmem mTHP folios.
 
 "mm: Optimize mseal checks" from Pedro Falcato.  Fixes an mprotect()
 performance regression due to the addition of mseal().
 
 "Increase the number of bits available in page_type" from Matthew Wilcox.
 Increases the number of bits available in page_type!
 
 "Simplify the page flags a little" from Matthew Wilcox.  Many legacy page
 flags are now folio flags, so the page-based flags and their
 accessors/mutators can be removed.
 
 "mm: store zero pages to be swapped out in a bitmap" from Usama Arif.  An
 optimization which permits us to avoid writing/reading zero-filled zswap
 pages to backing store.
 
 "Avoid MAP_FIXED gap exposure" from Liam Howlett.  Fixes a race window
 which occurs when a MAP_FIXED operqtion is occurring during an unrelated
 vma tree walk.
 
 "mm: remove vma_merge()" from Lorenzo Stoakes.  Major rotorooting of the
 vma_merge() functionality, making ot cleaner, more testable and better
 tested.
 
 "misc fixups for DAMON {self,kunit} tests" from SeongJae Park.  Minor
 fixups of DAMON selftests and kunit tests.
 
 "mm: memory_hotplug: improve do_migrate_range()" from Kefeng Wang.  Code
 cleanups and folio conversions.
 
 "Shmem mTHP controls and stats improvements" from Ryan Roberts.  Cleanups
 for shmem controls and stats.
 
 "mm: count the number of anonymous THPs per size" from Barry Song.  Expose
 additional anon THP stats to userspace for improved tuning.
 
 "mm: finish isolate/putback_lru_page()" from Kefeng Wang: more folio
 conversions and removal of now-unused page-based APIs.
 
 "replace per-quota region priorities histogram buffer with per-context
 one" from SeongJae Park.  DAMON histogram rationalization.
 
 "Docs/damon: update GitHub repo URLs and maintainer-profile" from SeongJae
 Park.  DAMON documentation updates.
 
 "mm/vdpa: correct misuse of non-direct-reclaim __GFP_NOFAIL and improve
 related doc and warn" from Jason Wang: fixes usage of page allocator
 __GFP_NOFAIL and GFP_ATOMIC flags.
 
 "mm: split underused THPs" from Yu Zhao.  Improve THP=always policy - this
 was overprovisioning THPs in sparsely accessed memory areas.
 
 "zram: introduce custom comp backends API" frm Sergey Senozhatsky.  Add
 support for zram run-time compression algorithm tuning.
 
 "mm: Care about shadow stack guard gap when getting an unmapped area" from
 Mark Brown.  Fix up the various arch_get_unmapped_area() implementations
 to better respect guard areas.
 
 "Improve mem_cgroup_iter()" from Kinsey Ho.  Improve the reliability of
 mem_cgroup_iter() and various code cleanups.
 
 "mm: Support huge pfnmaps" from Peter Xu.  Extends the usage of huge
 pfnmap support.
 
 "resource: Fix region_intersects() vs add_memory_driver_managed()" from
 Huang Ying.  Fix a bug in region_intersects() for systems with CXL memory.
 
 "mm: hwpoison: two more poison recovery" from Kefeng Wang.  Teaches a
 couple more code paths to correctly recover from the encountering of
 poisoned memry.
 
 "mm: enable large folios swap-in support" from Barry Song.  Support the
 swapin of mTHP memory into appropriately-sized folios, rather than into
 single-page folios.
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 -----END PGP SIGNATURE-----

Merge tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Pull MM updates from Andrew Morton:
 "Along with the usual shower of singleton patches, notable patch series
  in this pull request are:

   - "Align kvrealloc() with krealloc()" from Danilo Krummrich. Adds
     consistency to the APIs and behaviour of these two core allocation
     functions. This also simplifies/enables Rustification.

   - "Some cleanups for shmem" from Baolin Wang. No functional changes -
     mode code reuse, better function naming, logic simplifications.

   - "mm: some small page fault cleanups" from Josef Bacik. No
     functional changes - code cleanups only.

   - "Various memory tiering fixes" from Zi Yan. A small fix and a
     little cleanup.

   - "mm/swap: remove boilerplate" from Yu Zhao. Code cleanups and
     simplifications and .text shrinkage.

   - "Kernel stack usage histogram" from Pasha Tatashin and Shakeel
     Butt. This is a feature, it adds new feilds to /proc/vmstat such as

       $ grep kstack /proc/vmstat
       kstack_1k 3
       kstack_2k 188
       kstack_4k 11391
       kstack_8k 243
       kstack_16k 0

     which tells us that 11391 processes used 4k of stack while none at
     all used 16k. Useful for some system tuning things, but
     partivularly useful for "the dynamic kernel stack project".

   - "kmemleak: support for percpu memory leak detect" from Pavel
     Tikhomirov. Teaches kmemleak to detect leaksage of percpu memory.

   - "mm: memcg: page counters optimizations" from Roman Gushchin. "3
     independent small optimizations of page counters".

   - "mm: split PTE/PMD PT table Kconfig cleanups+clarifications" from
     David Hildenbrand. Improves PTE/PMD splitlock detection, makes
     powerpc/8xx work correctly by design rather than by accident.

   - "mm: remove arch_make_page_accessible()" from David Hildenbrand.
     Some folio conversions which make arch_make_page_accessible()
     unneeded.

   - "mm, memcg: cg2 memory{.swap,}.peak write handlers" fro David
     Finkel. Cleans up and fixes our handling of the resetting of the
     cgroup/process peak-memory-use detector.

   - "Make core VMA operations internal and testable" from Lorenzo
     Stoakes. Rationalizaion and encapsulation of the VMA manipulation
     APIs. With a view to better enable testing of the VMA functions,
     even from a userspace-only harness.

   - "mm: zswap: fixes for global shrinker" from Takero Funaki. Fix
     issues in the zswap global shrinker, resulting in improved
     performance.

   - "mm: print the promo watermark in zoneinfo" from Kaiyang Zhao. Fill
     in some missing info in /proc/zoneinfo.

   - "mm: replace follow_page() by folio_walk" from David Hildenbrand.
     Code cleanups and rationalizations (conversion to folio_walk())
     resulting in the removal of follow_page().

   - "improving dynamic zswap shrinker protection scheme" from Nhat
     Pham. Some tuning to improve zswap's dynamic shrinker. Significant
     reductions in swapin and improvements in performance are shown.

   - "mm: Fix several issues with unaccepted memory" from Kirill
     Shutemov. Improvements to the new unaccepted memory feature,

   - "mm/mprotect: Fix dax puds" from Peter Xu. Implements mprotect on
     DAX PUDs. This was missing, although nobody seems to have notied
     yet.

   - "Introduce a store type enum for the Maple tree" from Sidhartha
     Kumar. Cleanups and modest performance improvements for the maple
     tree library code.

   - "memcg: further decouple v1 code from v2" from Shakeel Butt. Move
     more cgroup v1 remnants away from the v2 memcg code.

   - "memcg: initiate deprecation of v1 features" from Shakeel Butt.
     Adds various warnings telling users that memcg v1 features are
     deprecated.

   - "mm: swap: mTHP swap allocator base on swap cluster order" from
     Chris Li. Greatly improves the success rate of the mTHP swap
     allocation.

   - "mm: introduce numa_memblks" from Mike Rapoport. Moves various
     disparate per-arch implementations of numa_memblk code into generic
     code.

   - "mm: batch free swaps for zap_pte_range()" from Barry Song. Greatly
     improves the performance of munmap() of swap-filled ptes.

   - "support large folio swap-out and swap-in for shmem" from Baolin
     Wang. With this series we no longer split shmem large folios into
     simgle-page folios when swapping out shmem.

   - "mm/hugetlb: alloc/free gigantic folios" from Yu Zhao. Nice
     performance improvements and code reductions for gigantic folios.

   - "support shmem mTHP collapse" from Baolin Wang. Adds support for
     khugepaged's collapsing of shmem mTHP folios.

   - "mm: Optimize mseal checks" from Pedro Falcato. Fixes an mprotect()
     performance regression due to the addition of mseal().

   - "Increase the number of bits available in page_type" from Matthew
     Wilcox. Increases the number of bits available in page_type!

   - "Simplify the page flags a little" from Matthew Wilcox. Many legacy
     page flags are now folio flags, so the page-based flags and their
     accessors/mutators can be removed.

   - "mm: store zero pages to be swapped out in a bitmap" from Usama
     Arif. An optimization which permits us to avoid writing/reading
     zero-filled zswap pages to backing store.

   - "Avoid MAP_FIXED gap exposure" from Liam Howlett. Fixes a race
     window which occurs when a MAP_FIXED operqtion is occurring during
     an unrelated vma tree walk.

   - "mm: remove vma_merge()" from Lorenzo Stoakes. Major rotorooting of
     the vma_merge() functionality, making ot cleaner, more testable and
     better tested.

   - "misc fixups for DAMON {self,kunit} tests" from SeongJae Park.
     Minor fixups of DAMON selftests and kunit tests.

   - "mm: memory_hotplug: improve do_migrate_range()" from Kefeng Wang.
     Code cleanups and folio conversions.

   - "Shmem mTHP controls and stats improvements" from Ryan Roberts.
     Cleanups for shmem controls and stats.

   - "mm: count the number of anonymous THPs per size" from Barry Song.
     Expose additional anon THP stats to userspace for improved tuning.

   - "mm: finish isolate/putback_lru_page()" from Kefeng Wang: more
     folio conversions and removal of now-unused page-based APIs.

   - "replace per-quota region priorities histogram buffer with
     per-context one" from SeongJae Park. DAMON histogram
     rationalization.

   - "Docs/damon: update GitHub repo URLs and maintainer-profile" from
     SeongJae Park. DAMON documentation updates.

   - "mm/vdpa: correct misuse of non-direct-reclaim __GFP_NOFAIL and
     improve related doc and warn" from Jason Wang: fixes usage of page
     allocator __GFP_NOFAIL and GFP_ATOMIC flags.

   - "mm: split underused THPs" from Yu Zhao. Improve THP=always policy.
     This was overprovisioning THPs in sparsely accessed memory areas.

   - "zram: introduce custom comp backends API" frm Sergey Senozhatsky.
     Add support for zram run-time compression algorithm tuning.

   - "mm: Care about shadow stack guard gap when getting an unmapped
     area" from Mark Brown. Fix up the various arch_get_unmapped_area()
     implementations to better respect guard areas.

   - "Improve mem_cgroup_iter()" from Kinsey Ho. Improve the reliability
     of mem_cgroup_iter() and various code cleanups.

   - "mm: Support huge pfnmaps" from Peter Xu. Extends the usage of huge
     pfnmap support.

   - "resource: Fix region_intersects() vs add_memory_driver_managed()"
     from Huang Ying. Fix a bug in region_intersects() for systems with
     CXL memory.

   - "mm: hwpoison: two more poison recovery" from Kefeng Wang. Teaches
     a couple more code paths to correctly recover from the encountering
     of poisoned memry.

   - "mm: enable large folios swap-in support" from Barry Song. Support
     the swapin of mTHP memory into appropriately-sized folios, rather
     than into single-page folios"

* tag 'mm-stable-2024-09-20-02-31' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (416 commits)
  zram: free secondary algorithms names
  uprobes: turn xol_area->pages[2] into xol_area->page
  uprobes: introduce the global struct vm_special_mapping xol_mapping
  Revert "uprobes: use vm_special_mapping close() functionality"
  mm: support large folios swap-in for sync io devices
  mm: add nr argument in mem_cgroup_swapin_uncharge_swap() helper to support large folios
  mm: fix swap_read_folio_zeromap() for large folios with partial zeromap
  mm/debug_vm_pgtable: Use pxdp_get() for accessing page table entries
  set_memory: add __must_check to generic stubs
  mm/vma: return the exact errno in vms_gather_munmap_vmas()
  memcg: cleanup with !CONFIG_MEMCG_V1
  mm/show_mem.c: report alloc tags in human readable units
  mm: support poison recovery from copy_present_page()
  mm: support poison recovery from do_cow_fault()
  resource, kunit: add test case for region_intersects()
  resource: make alloc_free_mem_region() works for iomem_resource
  mm: z3fold: deprecate CONFIG_Z3FOLD
  vfio/pci: implement huge_fault support
  mm/arm64: support large pfn mappings
  mm/x86: support large pfn mappings
  ...
2024-09-21 07:29:05 -07:00
Chuck Lever
509abfc7a0 xdrgen: Prevent reordering of encoder and decoder functions
I noticed that "xdrgen source" reorders the procedure encoder and
decoder functions every time it is run. I would prefer that the
generated code be more deterministic: it enables a reader to better
see exactly what has changed between runs of the tool.

The problem is that Python sets are not ordered. I use a Python set
to ensure that, when multiple procedures use a particular argument or
result type, the encoder/decoder for that type is emitted only once.

Sets aren't ordered, but I can use Python dictionaries for this
purpose to ensure the procedure functions are always emitted in the
same order if the .x file does not change.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20 19:31:41 -04:00
Chuck Lever
fed8a17c61 xdrgen: typedefs should use the built-in string and opaque functions
'typedef opaque yada<XYZ>' should use xdrgen's built-in opaque
encoder and decoder, to enable better compiler optimization.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20 19:31:40 -04:00
Chuck Lever
663ad8b1df xdrgen: Fix return code checking in built-in XDR decoders
xdr_stream_encode_u32() returns XDR_UNIT on success.
xdr_stream_decode_u32() returns zero or -EMSGSIZE, but never
XDR_UNIT.

Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20 19:31:39 -04:00
Chuck Lever
4b132aacb0 tools: Add xdrgen
Add a Python-based tool for translating XDR specifications into XDR
encoder and decoder functions written in the Linux kernel's C coding
style. The generator attempts to match the usual C coding style of
the Linux kernel's SunRPC consumers.

This approach is similar to the netlink code generator in
tools/net/ynl .

The maintainability benefits of machine-generated XDR code include:

- Stronger type checking
- Reduces the number of bugs introduced by human error
- Makes the XDR code easier to audit and analyze
- Enables rapid prototyping of new RPC-based protocols
- Hardens the layering between protocol logic and marshaling
- Makes it easier to add observability on demand
- Unit tests might be built for both the tool and (automatically)
  for the generated code

In addition, converting the XDR layer to use memory-safe languages
such as Rust will be easier if much of the code can be converted
automatically.

Tested-by: Jeff Layton <jlayton@kernel.org>
Signed-off-by: Chuck Lever <chuck.lever@oracle.com>
2024-09-20 19:31:39 -04:00
Palmer Dabbelt
47b9533ccd
Merge patch series "tools: Add barrier implementations for riscv"
Charlie Jenkins <charlie@rivosinc.com> says:

Add support for riscv specific barrier implementations to the tools
tree, so that fence instructions can be emitted for synchronization.

* b4-shazam-merge:
  tools: Optimize ring buffer for riscv
  tools: Add riscv barrier implementation

Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-0-ca7e193ae198@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20 05:58:08 -07:00
Charlie Jenkins
aa5736dc7a
tools: Optimize ring buffer for riscv
Now that the riscv tools tree supports optimized barriers, use them in
the ring buffer.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Reviewed-by: Andrea Parri <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-2-ca7e193ae198@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20 01:46:47 -07:00
Charlie Jenkins
6d74d178fe
tools: Add riscv barrier implementation
Many of the other architectures use their custom barrier implementations.
Use the barrier code from the kernel sources to optimize barriers in
tools.

Signed-off-by: Charlie Jenkins <charlie@rivosinc.com>
Reviewed-by: Andrea Parri <parri.andrea@gmail.com>
Link: https://lore.kernel.org/r/20240806-optimize_ring_buffer_read_riscv-v2-1-ca7e193ae198@rivosinc.com
Signed-off-by: Palmer Dabbelt <palmer@rivosinc.com>
2024-09-20 01:46:46 -07:00
Linus Torvalds
a65b3c3ed4 hid-for-linus-2024091602
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Merge tag 'hid-for-linus-2024091602' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid

Pull HID updates from Jiri Kosina:

 - New HID over SPI driver for Goodix devices that don't follow
   Microsoft's HID-over-SPI specification, so a separate driver is
   needed. Currently supported device is GT7986U touchscreen (Charles
   Wang)

 - support for new hardware features in Wacom driver (high-res wheel
   scrolling, touchstrings with relative motions, support for two
   touchrings) (Jason Gerecke)

 - support for customized vendor firmware loading in intel-ish driver
   (Zhang Lixu)

 - fix for theoretical race condition in i2c-hid (Dmitry Torokhov)

 - support for HIDIOCREVOKE -- evdev's EVIOCREVOKE equivalent in hidraw
   (Peter Hutterer)

 - initial hidraw selftest implementation (Benjamin Tissoires)

 - constification of device-specific report descriptors (Thomas
   Weißschuh)

 - other small assorted fixes and device ID / quirk additions

* tag 'hid-for-linus-2024091602' of git://git.kernel.org/pub/scm/linux/kernel/git/hid/hid: (54 commits)
  hid: cp2112: Use irq_get_trigger_type() helper
  HID: i2c-hid: ensure various commands do not interfere with each other
  HID: multitouch: Add support for Thinkpad X12 Gen 2 Kbd Portfolio
  HID: wacom: Do not warn about dropped packets for first packet
  HID: wacom: Support sequence numbers smaller than 16-bit
  HID: lg: constify fixed up report descriptor
  HID: uclogic: constify fixed up report descriptor
  HID: waltop: constify fixed up report descriptor
  HID: sony: constify fixed up report descriptor
  HID: pxrc: constify fixed up report descriptor
  HID: steelseries: constify fixed up report descriptor
  HID: viewsonic: constify fixed up report descriptor
  HID: vrc2: constify fixed up report descriptor
  HID: xiaomi: constify fixed up report descriptor
  HID: maltron: constify fixed up report descriptor
  HID: keytouch: constify fixed up report descriptor
  HID: holtek-kbd: constify fixed up report descriptor
  HID: dr: constify fixed up report descriptor
  HID: bigbenff: constify fixed up report descriptor
  HID: picoLCD: Use backlight power constants
  ...
2024-09-19 09:42:21 +02:00
Linus Torvalds
d5e65d1fb7 Hi,
Just updates and fixes, no major changes.
 
 I might send a PR during the release cycle addressing a performance issue in the
 bus encryption:
 
 1. https://bugzilla.kernel.org/show_bug.cgi?id=219229
 2. https://lore.kernel.org/linux-integrity/20240917154444.702370-1-jarkko@kernel.org/
 
 The first version of the patch set cut out already five seconds and I
 expect similar figures from the current version but I really need some
 more feedback. However, this week is not exactly optimal for getting
 it, given the Vienna conference.
 
 BR, Jarkko
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Merge tag 'tpmdd-next-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd

Pull tpm updates from Jarkko Sakkinen:
 "Just updates and fixes, no major changes"

* tag 'tpmdd-next-6.12-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jarkko/linux-tpmdd:
  tpm: export tpm2_sessions_init() to fix ibmvtpm building
  tpm: Drop explicit initialization of struct i2c_device_id::driver_data to 0
  selftests: tpm2: test_smoke: Run only when TPM2 is avaialable.
  MAINTAINERS: Add selftest files to TPM section
  tpm: Clean up TPM space after command failure
2024-09-19 09:38:34 +02:00