16549 Commits

Author SHA1 Message Date
Linus Torvalds
a99d741df7 Merge tag 'drm-next-2026-08-29' of https://gitlab.freedesktop.org/drm/kernel
Pull more drm updates from Dave Airlie:
 "As mentioned last week, an msm pull request fell down the side of the
  couch or whatever the email equivalent of that is. This has the msm
  next stuff + the usual fixes for amd/intel.

  core:
   - use drm_warn instead of warn

  msm:
   - Bindings:
      - Added Shikra support
      - Document a840, a704, a722
   - Core:
      - Use drm_client buffers for fbdev emulation
      - teardown fixes
      - ARM32 DMA fixup
      - Remove objects from evict list when re-validated
      - Bunch of corner case and error path fixes
   - DPU:
      - Dropped dev_pm_opp_set_rate(0) preventing burnout
      - Fixed SSPP offsets of Kaanapali
   - DP:
      - Dropped dev_pm_opp_set_rate(0) preventing burnout
      - Cleaned up core code in preparation for MST support
      - Fixed prepare() to let Pipewire continue in case of the unplugged cable
   - GPU:
      - Add support for a704
      - Add support for a722
   - HDMI:
      - Simplifed register access

  amdgpu:
   - eGPU fixes
   - Runtime PM fix
   - UserQ fixes
   - Backlight fix
   - Discovery sysfs fix
   - Reset handling fixes
   - Buffer func handling fix for xgmi
   - VCN boundary check fix
   - DC lut handling fixes
   - MES fixes
   - UVD fix
   - VCE 3 fix
   - Enforce isolation fix
   - HPD fix for VGA/LVDS
   - DML fix
   - DCN 6 fixes
   - DC gpu reset fix

  amdkfd:
   - Fix return value
   - CU occupancy for GFX 11
   - CU occupancy for GFX 12/12.1
   - Queue bounds checking fix
   - SVM fixes
   - CRIU bounds checking fix

  radeon:
   - iMac display fix

  xe:
   - error message cleanups
   - i2c global register definitions as dependency for xe/i2c fixes
   - Media workardound
   - Add CCS to gt_idle debugfs print
   - Page fault related fix
   - i2c related fixes
   - System Controller mailbox bit fix"

* tag 'drm-next-2026-08-29' of https://gitlab.freedesktop.org/drm/kernel: (121 commits)
  drm/xe/sysctrl: Read mailbox phase bit from hardware
  drm/xe/i2c: Keep the i2c controller always enabled
  drm/xe/i2c: Fix the interrupt handling
  i2c: designware: Global register definitions
  drm/xe: Reject page faults from non-fault-mode scratch VMs
  drm/xe/xe_gt_idle: Add CCS to the powergating info print
  drm/xe: Do not apply WA 14025883347 to media 3503
  drm/amd/display: fix dc_lock leak on GPU reset error paths
  drm/amd/display: Fix redundant GPUVMEnable checks in dcn6 flip schedule
  drm/amd/display: Fix wrong bytes-per-pixel value for dml2_422_packed_10
  drm/amdkfd: guard against NULL restore_mqd in CRIU queue restore
  drm/amdgpu/userq: fix lock missing for userq fence error set
  drm/amdkfd: Fix the case that vm range is hole at svm_migrate_copy_to_vram
  drm/amdkfd: Fix error path at svm_migrate_copy_to_ram
  drm/amd/display: Log details when failing to register HPD IRQ
  drm/amd/display: Fix HPD consideration for VGA/LVDS connectors on DCE
  drm/amdgpu: clamp the isolation index for rings outside a partition
  drm/amdkfd: Reject zero-sized AQL queue allocations after size halving
  drm/amdgpu: Fix VCE 3 ring align_mask
  drm/kfd: Add CU occupancy support to GFX12.1
  ...
2026-08-28 16:37:55 -07:00
Linus Torvalds
ce727a090b Merge tag 'ubifs-for-linus-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs
Pull UBI and UBIFS updates from Richard Weinberger:
 "UBI:
   - Support for a per-device wear-leveling threshold
   - Various fixes and cleanups of error paths
   - Correctly preserve torture flag up wear-leveling

  UBIFS:
   - Various fixes and cleanups of error paths and kernel-doc"

* tag 'ubifs-for-linus-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rw/ubifs:
  UBI: support per-device wear-leveling threshold
  UBI: fix two issues in the ubi.mtd MODULE_PARM_DESC
  mtd: ubi: Release device reference on busy detach
  ubi: Fix rollback for explicit UBI device numbers
  ubifs: fix out-of-bounds read in signature length check
  UBI: fastmap: Pass to_be_tortured when reusing old fastmap PEBs
  UBI: Preserve torture flag when rescheduling failed erasures
  ubifs: ubifs.h: clean up kernel-doc comments
  ubifs: key.h: use correct function parameter name
  ubifs: debug.h: fix kernel-doc struct prototypes
2026-08-28 10:59:07 -07:00
Linus Torvalds
115bd364ab Merge tag 'f2fs-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs
Pull f2fs updates from Jaegeuk Kim:
 "In this round, key enhancements focus on reducing inode management
  memory overhead, introducing resizable tail sections with unified
  pinned allocation, and boosting I/O throughput via parallel
  multi-device flushes and asynchronous f2fs_write_end_io() execution.
  We also add dynamic device alias reservations to allow on-the-fly
  space donation from user partitions.

  Alongside these features, critical bug fixes resolve folio race
  conditions, lingering dirty flags, dentry and block counter leaks, and
  potential deadloops in f2fs_fsync_node_pages(). Additional stability
  patches address error-path handling across symlink, sync, and
  rename/unlink operations, prevent pinned file fragmentation, and
  correct segment migration and free section accounting in
  free_segment_range.

  Enhancements:
   - reduce memory footprint of ino management
   - support dynamic reserve/release for device aliasing
   - issue multi-device flushes in parallel
   - add a way to run f2fs_write_end_io() asynchronously
   - support resizable tail section and unify pinned allocation

  Bug fixes:
   - fix to pass folio->index to f2fs_sanity_check_node_footer()
   - fix folio_nr_pages() race after put in large folio invalidate
   - fix to clear dirty flag on folio in error path
   - accurately adjust free_sections during free_segment_range
   - fix to avoid potential deadloop in f2fs_fsync_node_pages()
   - fix the error path in symlink, device alias in rename/unlink,
     f2fs_sync_fs
   - fix to migrate all curseg types during free_segment_range
   - fix to avoid pinfile fragment on fragment:{block, segment} mode
   - fix valid block count leak on data block allocation failure
   - fix dentry folio leak in find_in_level
   - reject overlapping move range after len expansion
   - fix some bugs related to file pinning, GC functions, i_size

  And, the series includes a number of minor bug fixes"

* tag 'f2fs-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jaegeuk/f2fs: (51 commits)
  f2fs: support resizable tail section and unify pinned allocation
  f2fs: don't leave the hashed inode while it's unlinked
  f2fs: accurately adjust free_sections during free_segment_range
  f2fs: fix to avoid potential deadloop in f2fs_fsync_node_pages()
  f2fs: use adjusted write range after f2fs_write_checks()
  f2fs: fix to propagate error from f2fs_sync_fs()
  f2fs: return symlink writeback errors
  f2fs: fix error handling on device alias check in rename and unlink
  f2fs: fix to reset all pinned status during fggc
  f2fs: use f2fs_{down, up}_(read, write}_trace() for nat_tree_lock
  f2fs: reduce memory footprint of ino management
  f2fs: fix i_size when pinned fallocate partially fails
  f2fs: fix to migrate all curseg types during free_segment_range
  f2fs: avoid setting SBI_NEED_FSCK on transient resize failure
  f2fs: fix to avoid pinfile fragment on fragment:{block, segment} mode
  f2fs: cleanup w/ f2fs_need_rand_{blk, seg, seg_blk}
  f2fs: fix to shrink gc_lock coverage in f2fs_gc_range()
  f2fs: fix to reclaim space in f2fs_allocate_pinning_section()
  f2fs: unify add/remove ino entry API for all ino types
  f2fs: fix to zero post-EOF data when extending file size
  ...
2026-08-28 10:48:48 -07:00
Linus Torvalds
1b78070aae Merge tag 'net-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Pull networking fixes from Jakub Kicinski:
 "Including fixes from Bluetooth, IPSec and Netfilter.

  Current release - fix to a fix:

   - netfilter: ipset: remove need to allocate memory on delete operations

  Current release - regressions:

   - macb: drop CONFIG_OF #if block, fix build

  Previous releases - always broken:

   - stream of fixes for SCTP continues

   - inet: frags: strip GSO state from fragments before reassembly

   - virtio-net: ensure that TCP packets don't overflow gso_segs

   - tcp-ao: fix use-after-free of current_key on reconnect to another
     peer

   - page_pool: remove zone/policy GFP flags when allocating XArray
     entries

   - Bluetooth: L2CAP: reject accept queue add unless BT_LISTEN

   - tls: device: fix out-of-bounds write in tls_append_frag()

   - eth: bnxt:
      - ring the doorbell when SW USO exits early, avoid packets stuck
        in Tx
      - gate TPH enablement behind BNXT_SUPPORTS_QUEUE_API check, avoid
        users of older NICs seeing non-actionable warning messages

   - eth: qede: fix NULL pointer dereference in TPA fragment processing"

* tag 'net-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net: (216 commits)
  inet: frags: strip GSO state from fragments before reassembly
  net/sched: sch_htb: limit htb_classify inner-class filter hops
  selftests/net: packetdrill: add tcp_urg_ptr_retransmit
  tcp: fix corruption of urgent data on multi-segment retransmit
  usb: atm: usbatm: fix invalid ci_range initialization
  net: fec: only stop PTP if it was initialized
  slip: remove slip_hangup() to fix use-after-free in slip_receive_buf()
  net: bridge: mcast: fix use-after-free of a master VLAN's multicast context
  net/sched: bound qdisc_pkt_len to prevent qdisc soft lockup
  net: dsa: mxl862xx: enable assisted learning on CPU port
  net: stmmac: restore NET_IP_ALIGN in the RX DMA offset
  net: stmmac: drop gso_enabled_types and rely on netdev features
  net: stmmac: selftests: Don't test flow control for small rx fifos
  net: stmmac: selftests: Account for the UC filter list for filtering tests
  net: stmmac: dwxgmac: Account for the primary MAC address for UC filtering
  net: stmmac: dwmac4: Account for the primary MAC address for UC filtering
  net: stmmac: dwmac1000: Account for the primary MAC address for UC filtering
  net: stmmac: selftests: Check multiple MMC counters
  selftests: net: Fix slow configurations in big_tcp_tunnels.sh
  selftests: net: Lower threshold with csum offload off in big_tcp_tunnels.sh
  ...
2026-08-27 13:53:43 -07:00
Linus Torvalds
18fbf5151d Merge tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull more MM updates from Andrew Morton:

 - "mm/rmap: index MAP_PRIVATE file-backed folios by anonymous pgoff"
   (Lorenzo Stoakes)

   Index MAP_PRIVATE file-backed folios by their anonymous page offset
   to resolve confusion around reverse mapping for zeroed and CoW'd
   file-backed memory.

   Use this new VMA anonymous page offset tracking to eliminate index
   conflicts and lay the foundation for scalable CoW performance
   improvements.

 - "promote mapped executable folios after first usage for MGLRU"
   (Baolin Wang)

   Make MGLRU's protection of mapped executable file folios more
   reliable. Follow the classical LRU's logic, promoting mapped
   executable file folios after their first usage to give executable
   code a better chance to stay in memory and improve workload
   performance.

 - "mm: vmscan: fix node reclaim ignoring swappiness parameter" (Ridong
   Chen)

   Fix per-node proactive reclaim interface's ignoring the swappiness
   parameter when CONFIG_MEMCG is disabled by consolidating
   sc_swappiness() into a single function that checks
   proactive_swappiness regardless of kernel configuration.

 - "mm/vmscan: reduce lru_lock contention via vmstat-derived
   scan-balance cost" (Usama Arif)

   Reduce lru_lock contention in the reclaim path by deriving
   scan-balance costs from vmstat counters rather than lock-acquired
   producer updates.

   Read and decay these cost signals on the reclaim side under a
   dedicated per-lruvec lock, reducing total LRU lock wait time by over
   60% without impacting scan throughput.

 - "zram: fix zram issues reported by sashiko" (Sergey Senozhatsky)

   Fix two low-risk zram bugs which Sashiko spotted in drive-by review.

 - "Honor XA_FLAGS_ACCOUNT in xas_split_alloc() and charge to folio's
   memcg" (Zi Yan)

   Fix xas_split_alloc() by enabling target folio memcg charging during
   splits and adding the missing __GFP_ACCOUNT flag for proper XArray
   node memory accounting.

 - "selftests/mm: use pattern matching in .gitignore" (Pratyush Mallick)

   Replace hardcoded binary names in selftests/mm/.gitignore with a
   generic pattern-matching rule to automatically ignore generated test
   files and avoid manual updates when adding new tests.

 - "mm/page_ext: remove pgdat_page_ext_init()" (Sang-Heon Jeon)

   Make the incompatibility between FLATMEM and NUMA explicit in
   mm/Kconfig and remove the unused pgdat_page_ext_init() function.

 - "zram: fix zstd error paths and add parameter validation" (Haoqin
   Huang)

   Clean up zram compression backends by removing redundant error
   cleanup, adding parameter and dictionary validation, auto-prefixing
   algorithm error logs, and resetting parameters prior to
   reinitialization.

 - "zram: fix stale scan bounds after reinitialization" (Longlong Xia)

   Prevent out-of-bounds slot accesses during concurrent zram resets by
   moving table scan bound calculations under dev_lock in
   writeback_store() and read_block_state().

 - "add anon mTHP collapse test cases" (Baolin Wang)

   Extend selftests helper functions to support arbitrary page orders
   and add new test cases and options for mTHP collapse in khugepaged.

 - "selftests/mm: Handle unsupported and transient test conditions"
   (Muhammad Usama Anjum)

   Update MM selftests to report a SKIP status instead of a failure when
   required kernel or filesystem features are unsupported, while adding
   retry logic for transient page migration errors.

 - "mm/zswap: Fixes and improves the zswap shrink" (Hao Jia)

   Fix the missing zswap global shrinker when CONFIG_MEMCG is disabled
   and extend shrink_memcg() to support batch writeback for improved
   writeback efficiency.

 - "alloc_tag: introduce IOCTL-based filtering for MAP" (Suren
   Baghdasaryan)

   Introduce an IOCTL-based binary interface for memory allocation
   profiling that enables kernel-side filtering before per-CPU counter
   aggregation.

   This eliminates the text-parsing overhead of /proc/allocinfo and
   provides up to a 20x speedup by transferring only filtered allocation
   data to userspace.

 - "better block swap batching and a different take on swap_ops v5"
   (Christoph Hellwig)

   Refactor block swap I/O to use swap_iocb for batching instead of
   single-bio requests and rebase the swap_ops interface, achieving
   faster swap throughput during kernel builds.

 - "mm: kmemleak: reduce transient false positives by confirming leaks"
   (Catalin Marinas)

   Reduce false-positive kmemleak reports by combining two kmemleak
   enhancements that add a second confirmation scan and a configurable
   minimum unreferenced scan count module parameter.

 - "mm: kmemleak: default min_unref_scans to 2 for verbose kernels"
   (Breno Leitao)

   Auto-scanning kernels can generate false-positive memory leak reports
   on single scans, so this patch defaults min_unref_scans to 2 when
   CONFIG_DEBUG_KMEMLEAK_VERBOSE is enabled to require a second
   confirming scan.

 - "swap_ops updates" (Christoph Hellwig)

   Batching I/O for synchronous swap devices causes performance
   regressions and filesystem-based swap suffers from double-indirection
   overhead. This series resolves both issues by reintroducing per-folio
   writes for synchronous swap and allowing filesystems to directly
   export their own swap_ops.

 - "mm/khugepaged: several cleanups" (Nico Pache)

   khugepaged accumulated redundant state-checking patterns and outdated
   comments following mTHP integration. Introduce dedicated helpers for
   PTE validation and event counting while refreshing the internal
   documentation.

 - "maple_tree: lock checking and clean ups" (Liam Howlett)

   Syzbot reports incorrectly blame memory management exit paths for
   locking bugs, maple tree erase operations risk allocation failures
   without gfp flags and internal documentation lacks clarity.

   Improve lock error detection, update docs, fix race and allocation
   edge cases and optimize erase allocations using a fallback to
   GFP_KERNEL | GFP_NOFAIL.

* tag 'mm-stable-2026-08-26-15-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (172 commits)
  selftests/proc: make proc-maps-race work with READ_IMPLIES_EXEC
  memcg: move LRU size accounting on reparenting instead of copying it
  mm/vmscan: fix comment logic in balance_pgdat
  maple_tree: add helper mas_make_walkable()
  maple_tree: avoid extra gap calculation
  maple_tree: fix argument name in header
  maple_tree: change two GFP flags in tests
  maple_tree: document erase and allocations better
  maple_tree: avoid mas_erase() and mtree_erase() failures
  maple_tree: document that erase may use GFP_KERNEL for allocations
  maple_tree: catch race in mas_alloc_cyclic()
  maple_tree: add bulk parent set helper
  maple_tree: micro optimisation of mas_wr_store_type()
  maple_tree: optimise mas_wr_node_store() when not in rcu mode
  maple_tree: use prefetched value in mas_wr_store_type()
  maple_tree: clarify comments on mas_nomem()
  maple_tree: drop MAPLE_ALLOC_SLOTS
  maple_tree: drop dead code from mas_extend_spanning_null()
  maple_tree: documentation fix
  maple_tree: add write lock checking with lockdep sequence numbers
  ...
2026-08-27 09:17:06 -07:00
Linus Torvalds
7bb6284aa7 Merge tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm
Pull kvm updates from Paolo Bonzini:
 "ARM64:

   - Add support for 'slot' based PMU events, paired with new UAPI that
     compels the user to select a specific PMU implementation

   - Lazy save/restore of vCPU state for pKVM, along with various fixes
     and cleanups to the management of vCPU state between the untrusted
     host and pKVM hypervisor

   - Disable traps of EL1 registers for nested hypervisors when
     FEAT_NV2p1 is present, guaranteeing that EL2-specific register bits
     are stateful in the EL1 counterpart

   - Leverage FEAT_NV3 to avoid unnecessary ERET/TLBI traps when the
     scope of those instructions remains 'in host' (i.e. L1
     kernel/userspace)

   - Pile of fixes for the management of the VNCR pseudo-TLB, such as
     under-invalidations and races with concurrent TLBIs on other vCPUs

   - Consolidate the non-protected and pKVM view of ICH_VTR_EL2 to a
     runtime-patched constant, allowing the same data to be shared with
     pKVM prior to dropping host privileges

   - Considerable pile of LLM-assisted fixes around the shop but mostly
     in the VGIC, our in-kernel generator of bugs (and sometimes
     interrupts)

  LoongArch:

   - Advertise already-supported capabilities

   - Some bug fixes about timer and MMIO

   - Some hardening about interrupt injection

   - Replace kvm_err() with kvm_pr_unimpl()

   - Add FPU/LSX/LASX test cases for selftests

  RISC-V:

   - Svadu/Zicfiss/Zicfilp FWFT support for Guest

   - Use try_cmpxchg for IMSIC MRIF RMW

   - More arch-specific tracepoints in KVM RISC-V

   - Eager page splitting when enabling dirty logging

   - Optimize hfence request handling for SMP Guests

   - Improve dirty log clearing by skipping zero bits in mask

   - Guard HFENCE range loops against overflow

   - CPU PM notifiers in KVM RISC-V for non-retentive idle states

   - Fix kernel-mode vector context save/restore for Guest

  s390:

   - Fixes for vfio-ap

   - Fixes for the gmap rework

   - Fixes for vsie

   - AI triggered fixes all over

   - diag9c tracing

   - code move preparation for the additional arm64 support

   - enable CONTEXT_ANALYSIS

  x86:

   - Perform spring cleaning on x86.{c,h} and asm/kvm_host.h, by adding
     regs.c (the kvm_cache_regs.h => regs.h is already applied) and
     msrs.{c,h}, and moving relevant code out of x86.c

   - Split kvm_mmu in three parts, respectively to describe the format
     of page tables, walking the guest page tables and building the page
     tables. Always use the same page table walker kvm->arch.gva_walk as
     the entry point to convert a guest's virtual address, where the
     previous code used two different kvm_mmu structs depending on
     whether the walk included nested EPT/NPT or not. Make page fault
     vmexits reuse the permission checking machinery that is used for
     guest page faults. This is both a cleanup and a baby step towards
     supporting XS/XU memory permissions

   - Document some of the "fun" gotchas with the APIC base when creating
     IRQCHIPs on x86

   - Remove a defunct masterclock update from kvm_xen_shared_info_init().
     It could result in incorrect kvmclock due to triggering an
     unnecessary switch to/from masterclock mode

   - Skip Xen runstate time updates if time has effectively gone
     backwards, so that the guest doesn't report 100% steal time for
     a very, very long time

   - Drop KVM's runtime updates of the Xen PV timing CPUID leaf, as KVM
     was updating the wrong sub-leaf, and upstream KVM will soon provide
     all the information needed by userspace to populate the CPUID field
     itself

   - Fix a bug where KVM would walk a newly created rmap without holding
     the rmap lock (or mmu_lock) during aging

   - Fix a bug where aging TDP MMU SPTEs could clobber FROZEN SPTEs

   - Fix a variety of #DB priority bugs

   - Fix a class of races related to enabling Hyper-V emulation on a
     vCPU after the vCPU is visible to the rest of KVM

   - Use static calls for nested virtualization ops

   - Move more KVM-internal code out of x86's kvm_host.h

   - Enumerate support for a variety of Zhaoxin instructions that don't
     require explicit virtualization

   - Fix missing EFER validation bugs, including in the KVM_SET_SREGS*
     path

   - Harden kvm_vcpu_map() against double-mapping and thus leaking
     references

   - Misc fixes and cleanups, e.g. for largely benign syzkaller splats

  x86 (Intel):

   - Zero a vCPU's entry in VMX's Posted Interrupt Descriptor table used
     for IPI virtualization when the vCPU is freed, to fix a
     use-after-free where hardware will write to a freed vCPU's PID

   - Service local TLB flushes on a failed nested VM-Enter to fix a bug
     where KVM could miss a TLB on a future, successful VM-Enter with
     the same L2 VPID

   - Cap the maximum value shoved into the VMX Preemption Timer to
     workaround an erratum that affects all existing Intel CPUs that
     support CPUID 0x15

   - Fix VPID virtualization bugs where KVM would fail to flush hardware
     TLBs

   - Harden the TDX "populate" ioctls against bad input, and to prepare
     for supporting in-place private<=>shared conversion

  x86 (AMD):

   - Forcefully invalidate SNP VMSA pages if their backing guest_memfd
     page is zapped/invalidated, e.g. due to a PUNCH_HOLE in response to
     a Page-State Change request

   - Remove a dying VM from the GA Log notifier list before the VM is
     actually destroyed, to fix a potential use-after-free

   - While FOLL_WRITE was needed in the past to trigger CoW unsharing,
     nowadays FOLL_LONGTERM does that already even without FOLL_WRITE,
     and in fact, get_user_pages() actually disallows FOLL_WRITE
     together with FOLL_LONGTERM. So don't pass FOLL_WRITE when
     registering encrypted memory regions, i.e. when pinning SEV/SEV-ES
     guest memory, to fix a regression with file-backed memory
     introduced by KVM's (correct) usage of long-term pins

     (This was reviewed by mm maintainers; for more information, see
     commit ee1a586dd1 "KVM: SEV: Drop FOLL_WRITE for encrypted region
     registration")

   - Allocate full pages for SEV/SEV-ES {DE,EN}CRYPT ops on SNP-enabled
     hosts to fix a data corruption issue due to the PSP driver
     assigning to-be-written pages to firmware (as required by the SNP
     specs)

   - Unconditionally intercept ICBEP so that KVM generates the correct
     guest RIP when handling an ICEBP-induced TASK_SWITCH #VMEXIT

   - Harden the SNP "populate" ioctls against bad input, and to prepare
     for supporting in-place private<=>shared conversion

  Generic:

   - Remove kvm_debugfs_dir if kvm_init() fails after creating KVM's
     debugfs

   - Add a per-VM bitmap to track which vCPU IDs have been "claimed" but
     for which the vCPU isn't yet online, and use the bitmap to reject
     duplicate IDs before calling into arch code. This allows arch code
     to consume vcpu_id without having to worry about cross-vCPU
     clobbering (at least s390 and x86 have had related bugs)

   - Rework the so called "prepare" and "invalidate" guest_memfd hooks
     to prepare for in-place private<=>shared conversion, and clean up a
     few warts along the way

  Selftests:

   - Automatically allocate a full page for L2 guest stacks on x86
     instead of requiring test-specific L1 guest code to carve out a
     portion of the L1 stack for L2 usage, and to ensure the L2 stack
     also adheres to the x86-64 calling convention ABI

   - Add a selftest to verify {Guest,Host}-Only behavior in x86's
     mediated PMU

   - Clean up nested SVM's handling of GPRs on L2<=>L1 transitions,
     reuse the functionality for nested VMX, and drop the ucall hack
     that was fudging around the lack of GPR switching on nVMX

   - Add a stress test to verify KVM doesn't clobber/drop #PF state,
     e.g. CR2, across save/restore, including when L2 is active

   - Add a test to verify KVM_CREATE_VM accepts exactly what is reported
     by KVM_CAP_VM_TYPES

   - Misc selftests fixes and cleanups

   - Fix several issues with seeding the pRNG, and rework the pRNG APIs
     to that the pRNG can be sanely used in host code, not just guest
     code

   - Add an IRQ test to validate virtual IRQ deliverty for IRQs wired up
     via KVM_IRQFD + KVM_SET_GSI_ROUTING, with optional support for
     triggering IRQs via writes to an assigned VFIO device

   - Add syscall wrappers to assert success on a variety of pthreads and
     CPU affinity APIs

   - Set vCPU pthread affinity as early as possible to reduce contention
     issues that were surfaced by PREEMPT_LAZY, which result in runtimes
     of over a minute on large hosts, versus the expected ~5 seconds

   - Rework the PMU counters test to run each testcase using a single VM
     with many vCPUs for each sub-testcase, instead of using a unique VM
     for each sub-testcase. This cuts the runtime by ~20x

  Miscellaneous:

   - MAINTAINERS updates for vfio-ap, guest_memfd, kvm-x86. Mostly
     representing the status quo more accurately, but also... welcome
     David Hildenbrand as guest_memfd reviewer!"

* tag 'for-linus' of git://git.kernel.org/pub/scm/virt/kvm/kvm: (413 commits)
  KVM: arm64: Validate GICv5 timer PPIs before claiming ownership
  KVM: arm64: vgic: Reject out-of-range GICv5 PPI IDs
  KVM: arm64: vgic: Prevent speculative SPI array underflow
  KVM: arm64: vgic: Free gic_kvm_info on initialization failure
  KVM: arm64: Avoid mismatched accesses to 'struct kvm_nvhe_init_params'
  s390/vfio-ap: Fix NULL deref in status_show() during queue probe
  s390/vfio-ap: Fix hot-unplug skipped when last AP adapter or domain removed
  s390/vfio-ap: fix potential use of uninitialized apm_filtered bitmap
  s390/vfio-ap: Fix control domain removal in vfio_ap_mdev_cfg_remove
  s390/vfio-ap: Fix required lock not held during update of ap_matrix_mdev object
  s390/vfio-ap: Fix missing lock required to access list of ap_matrix_mdev objects
  s390/vfio-ap: Fix dereference matrix_mdev->kvm without checking for NULL
  s390/vfio-ap: Fix stale do_remove flag across iterations in vfio_ap_mdev_cfg_remove
  RISC-V: KVM: fix vcpu vector context handling for kernel-mode vector
  riscv: vector: allow non-preemptible kernel-mode vector with IRQs off
  riscv: vector: refactor riscv_v_start_kernel_context
  KVM: s390: gmap: Make prefix handling optional
  KVM: s390: gmap: Make CMMA optional
  KVM: s390: gmap: Make storage keys optional
  KVM: s390: Prepare gmap for a second KVM implementation
  ...
2026-08-25 11:48:04 -07:00
Linus Torvalds
70f5376dbd Merge tag 'tty-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty
Pull TTY / serial driver updates from Greg KH:
 "Here is the "big" set of tty and serial driver updates for 7.3-rc1.

  Not really all that much happened this development cycle for this
  subsystem, changes in here are:

   - removal of the ipwireless driver as it's no longer used or needed

   - new 8250_mxpcie driver added

   - qcom serial driver updates and additions

   - vt mode validation addition

   - lots of other small serial driver updates and additions

  All of these have been in linux-next for weeks with no reported issues"

* tag 'tty-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/tty: (97 commits)
  serial: imx: serialize imx_uart_ports[] lifetime
  tty: clear cdev pointer after cdev_add() failure
  tty: skip cdev_del() when no cdev is registered
  serial: core: clear freed pointers on uart_register_driver() failure
  serial: core: do fallible allocations before the console can be registered
  serial: 8250_mxpcie: implement rx_trig_bytes callbacks via MUEx50 RTL
  serial: 8250_mxpcie: introduce per-port private data structure
  serial: 8250: allow UART drivers to override rx_trig_bytes handling
  serial: 8250_mxpcie: add break support for RS485 using MUEx50 features
  serial: 8250: allow low-level drivers to override break control
  serial: 8250_mxpcie: support serial interface mode switching
  serial: 8250_mxpcie: speed up TX using memory-mapped FIFO window
  serial: 8250_mxpcie: speed up RX using memory-mapped FIFO window
  serial: 8250_mxpcie: add custom handle_irq callback
  serial: 8250_mxpcie: offload XON/XOFF flow control to MUEx50 hardware
  serial: 8250_mxpcie: enable automatic RTS/CTS flow control
  serial: 8250_mxpcie: enable enhanced mode and program FIFO trigger levels
  serial: 8250: add Moxa MUEx50 UART port type
  serial: 8250: split Moxa PCIe serial board support out of 8250_pci
  serial: qcom-geni: Use geni_se_set_perf_level() for baud rate perf level
  ...
2026-08-25 10:59:12 -07:00
Linus Torvalds
f4d50813c0 Merge tag 'usb-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb
Pull USB / Thunderbolt updates from Greg KH:
 "Here is the big set of USB and Thunderbolt driver updates for 7.3-rc1.

  Lots of driver work for new devices and systems, and many other minor
  fixes and updates. Included in here are:

   - Thunderbolt subsystem driver updates and additions

   - typec driver updates and additions

   - usb gadget fixes all over the place, seems like people are finally
     paying attention to these drivers for some reason

   - xhci driver updates and fixes based on lots of reports

   - usb-serial driver updates and additions

   - new device ids

   - other minor USB driver updates and fixes

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

* tag 'usb-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/usb: (163 commits)
  usb: gadget: uvc: fix dangling pointers in uvc_function_bind() and uvc_function_unbind()
  usb: typec: hd3ss3220: fix VBUS regulator error message
  usb: usbfs: fix use-after-free of usb_device in usbdev_release()
  usb: gadget: u_audio: Fix use-after-free on sound card disconnect
  usb: dwc3: gadget: Fix use-after-free in dwc3_gadget_free_endpoints due to race condition
  usb: gadget: f_tcm: keep port count until LUN teardown completes
  usb: usbtest: disable dynamic ID support
  usb: typec: tcpci: pass correct rx_type to tcpm_pd_receive()
  USB: c67x00: fix use-after-free in c67x00_add_iso_urb()
  usb: typec: ucsi: use UCSI_TIMEOUT_MS for sync command completion
  usb: gadget: snps_udc_plat: clean up PHY on probe deferral
  usb: gadget: f_tcm: fix deadlock in usbg_make_tpg()
  usb: dwc2: gadget: Exit partial power down state when changing USB pull-up
  usb: gadget: f_fs: Fix Use-After-Free in AIO error path
  usb: gadget: f_fs: Prevent deadlock during ep0 read loop
  usb: gadget: at91_udc: drain polled-VBUS timer/work before udc is freed
  usb: gadget: midi2: remove default configfs groups on teardown
  usb: gadget: uvc: Fix null pointer dereference in uvcg_video_init()
  usb: typec: thunderbolt: Disable work before freeing tbt on remove
  usb: xhci: Handle bogus TRB pointers in Missed Service Error events
  ...
2026-08-25 10:44:46 -07:00
Linus Torvalds
93e4b3076b Merge tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc
Pull char/misc/IIO/etc driver updates from Greg KH:
 "Here is the big set of char, misc, iio, counter, fpga, and other small
  driver subsystems for 7.3-rc1.

  Overall, due to some driver removals we only added a bit more code
  than removed, which was a nice change. Highlights in this merge
  request are:

   - Loads of IIO driver updates and additions

   - binder driver updates (more on that below...)

   - Removal of the SGI XP and GRU drivers as they are not used anymore
     and turn out to be pretty insecure overall

   - Removal of the obsolete ibmasm driver as it's not being used
     anymore

   - Coresight driver updates and additions

   - Mei driver udpates

   - Counter driver updates

   - FPGA driver updates

   - ICC driver updates

   - lots and lots of other tiny driver updates to resolve reported
     issues

  All of these have been in linux-next for a while"

* tag 'char-misc-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/char-misc: (513 commits)
  iio: chemical: atlas-sensor: use iio_trigger_poll_nested() to fix remove UAF
  iio: adc: pac1921: fix wrong channel used in trigger handler read
  iio: light: gp2ap002: re-enable irq if runtime suspend fails
  iio: light: gp2ap002: Fix unbalanced runtime PM on repeated event writes
  iio: light: apds9306: fix PM reference leak in apds9306_read_data()
  iio: gyro: mpu3050: fix sign of raw angular velocity readings
  iio: srf04: fix pm_runtime handling on probe error path
  iio: adc: ad4080: configure backend data size
  iio: adc: adi-axi-adc: add data size support for AD408X backend
  iio: chemical: atlas-sensor: fix PM reference leak in buffer postenable
  iio: dac: ad5446: fix OF module device table
  iio: light: opt4001: Fix reversed GENMASK() arguments in fault count mask
  iio: light: opt4001: Reject integration times with a non-zero seconds part
  iio: light: opt4001: Fix incompatible pointer type passed to div_u64_rem()
  iio: light: opt4001: Fix power down clearing bits of the wrong register
  iio: light: opt4060: Fix incorrect register name in threshold read error message
  iio: light: opt4060: Fix pointer type passed to div_u64_rem()
  iio: light: opt4060: Reject integration times with a non-zero seconds part
  iio: light: ltrf216a: fix runtime PM reference leak in error path
  iio: pressure: dps310: fix NULL pointer dereference on ACPI probe
  ...
2026-08-25 09:38:50 -07:00
Linus Torvalds
9cebfe6504 Merge tag 'fuse-update-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse
Pull fuse updates from Miklos Szeredi:

 - Improve performance of the io-uring transport by introducing buffer
   pools and zero-copy (Joanne)

 - Fix lots of bugs (Baokun Li)

 - Fix io-uring initialization issues (Joanne, Bernd)

 - More prep work for large folios (Joanne)

 - Don't limit buffered read to 128k (Jim Harris)

 - Fix zeroing of page end (dirtied with mmap) on file size extension
   (Jimmy Zuber)

 - Improve performance in certain cases with wake_up_sync() when queuing
   request (Xuewen Yan)

 - Misc fixes and cleanups (Xuewen Yan)

* tag 'fuse-update-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/mszeredi/fuse: (35 commits)
  fuse: zero the partial EOF page when extending a file
  io_uring: Add missing include for ITER_SOURCE and ITER_DEST
  fuse: Fix the condition to enable over-io-uring
  fuse: invalidate the correct range after O_APPEND direct write
  selftests/fuse: test post-EOF page zeroing when a file is extended
  fuse: wake one waiter per freed slot when raising max_background
  fuse: use min_not_zero() in fuse_init_server_timeout()
  fuse: copy request headers via a stack buffer for io-uring
  fuse: give wakeup hints to the scheduler for synchronous requests
  fuse: check for NULL root inode in fuse_fill_super_submount
  fuse: reject a duplicate fd= mount option
  cuse: wait for pending RCU callbacks on module exit
  fuse: fix invalidate lock leak on open O_TRUNC DAX failure
  fuse: fix invalidate lock leak on setattr writeback failure
  fuse: wait for FR_FINISHED on abort_on_kill to prevent use-after-free
  fuse: make dentry_tree_work static
  docs: fuse: document io-uring buffer pool and zero-copy uapi
  fuse: add zero-copy over io-uring
  fuse: support registered buffer pools in io-uring
  fuse: add io-uring buffer pools
  ...
2026-08-25 07:59:44 -07:00
Abhishek Bapat
33588e0b81 alloc_tag: add accuracy based filtering to ioctl
Extend the allocinfo filtering mechanism to allow users to filter tags
based on their accuracy.

[abhishekbapat@google.com: move `inaccurate` filtering criteria from `struct allocinfo_tag` to `struct allocinfo_filter`]
  Link: https://lore.kernel.org/e4e49ec4a5960292aeeb9e196526c18dc95228a2.1785867739.git.abhishekbapat@google.com
Link: https://lore.kernel.org/396a5e4bc3b2990223ab355f2cd3ceb6aa15499e.1783532853.git.abhishekbapat@google.com
Signed-off-by: Abhishek Bapat <abhishekbapat@google.com>
Acked-by: Hao Ge <hao.ge@linux.dev>
Acked-by: Suren Baghdasaryan <surenb@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-24 18:43:13 -07:00
Abhishek Bapat
6f6769ea88 alloc_tag: add size-based filtering to ioctl
Extend the allocinfo filtering mechanism to allow users to filter tags
based on the total number of bytes allocated [min_size, max_size].  The
size range is inclusive.

Filtering by size involves retrieving allocinfo per-CPU counters, which is
an expensive operation.  Hence, the performance of size-based filtering
will be worse than other filters.

Link: https://lore.kernel.org/0a7653b70ae0d64e967fbea0e933bc35f8ac656e.1783532853.git.abhishekbapat@google.com
Signed-off-by: Abhishek Bapat <abhishekbapat@google.com>
Acked-by: Hao Ge <hao.ge@linux.dev>
Acked-by: Suren Baghdasaryan <surenb@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-24 18:43:12 -07:00
Abhishek Bapat
5732a4e4c1 alloc_tag: add ioctl filters to /proc/allocinfo
Extend the capability of the IOCTL mechanism to filter allocations based
on tag's module name, function name, file name and line number.

Link: https://lore.kernel.org/6a6100c0c58cb2911f39126b9fe177a8c17db16f.1783532853.git.abhishekbapat@google.com
Signed-off-by: Abhishek Bapat <abhishekbapat@google.com>
Acked-by: Hao Ge <hao.ge@linux.dev>
Acked-by: Suren Baghdasaryan <surenb@google.com>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-24 18:43:12 -07:00
Suren Baghdasaryan
1d581ab234 alloc_tag: add ioctl to /proc/allocinfo
Patch series "alloc_tag: introduce IOCTL-based filtering for MAP", v8.

Currently, memory allocation profiling data is primarily exposed through
/proc/allocinfo.  While useful for manual inspection, this text-based
interface poses challenges for production monitoring and large-scale
analysis:

1. Userspace must parse large amounts of text to extract specific
fields.
2. To find specific tags, userspace must read the entire dataset,
requiring many context switches and high data copying.
3. The kernel currently aggregates per-CPU counters for every allocation
size, even those the user intends to filter out immediately.

This series introduces a new IOCTL-based binary interface for allocinfo
that supports kernel-side filtering.  By allowing the user to specify a
filter mask, we significantly reduce the work performed in-kernel and the
amount of data transferred to userspace.  The IOCTL mechanism was chosen
for allocinfo to address the per-CPU counter aggregation bottleneck.  A
traditional read() operation must report the total allocation count and
sizes for every code tag in the system.  Doing so requires iterating
across all CPUs to sum their per-CPU counters for thousands of tags, which
introduces substantial runtime overhead.

The IOCTL interface allows userspace to push selective filtering criteria
directly into the kernel before the per-CPU counter aggregation.  The
kernel aggregates per-CPU counters only for a small subset of tags that
match the filter.  This results in significant performance improvement.

Beyond fast filtered retrieval, the IOCTL foundation allows introducing a
context capture mechanism in the future to capture the context for
specific allocations.

Performance measurements were conducted on an Intel Xeon Platinum 8481C
(224 CPUs) with caches dropped before each run.

The IOCTL mechanism shows a ~20x performance improvement for
filtered queries. The kernel avoids the expensive per-CPU counter
aggregation (alloc_tag_read) for any tags that fail the initial string
or location filters.

Scenario 1: Specific File Filtering (arch/x86/events/rapl.c)
1. Traditional (cat /proc/allocinfo | grep): 22ms (sys)
2. IOCTL Interface: 1ms (sys)

Scenario 2: Compound Filtering (Filename + Size)
1. Traditional: (cat ... | grep | awk): 21ms (sys)
2. IOCTL Interface: 1ms (sys)

Scenario 3: Size-Based Filtering (min_size = 1MB)
1. Traditional: (cat ... | awk): 21ms (sys)
2. IOCTL Interface: 14ms (sys)


This patch (of 6):

Add the following ioctl commands for /proc/allocinfo file:

ALLOCINFO_IOC_CONTENT_ID - gets content identifier which can be used to
check whether the file content has changed specifically due to module
load/unload.  Every time a module is loaded / unloaded, the returned value
will be different.  By comparing the identifier value at the beginning and
at the end of the content retrieval operation, users can validate
retrieved information for consistency.

ALLOCINFO_IOC_GET_AT - gets the record at the specified position.  This is
the position of a record in /proc/allocinfo.

ALLOCINFO_IOC_GET_NEXT - gets the record next to the last retrieved one. 
If no records were previously retrieved, returns the first record.

Note, function file and module names often have the same prefixes,
therefore when filtering for them, we compare the last 64 characters to
minimize the chances of name collisions.

[akpm@linux-foundation.org: include compat.h, per Suren]
  Closes: https://lore.kernel.org/oe-kbuild-all/202607091820.qbjlGhKK-lkp@intel.com/
Link: https://lore.kernel.org/cover.1783532853.git.abhishekbapat@google.com
Link: https://lore.kernel.org/15596de2607ef13e7c77c6d74763f4ae992ec475.1783532853.git.abhishekbapat@google.com
Signed-off-by: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Abhishek Bapat <abhishekbapat@google.com>
Acked-by: Hao Ge <hao.ge@linux.dev>
Cc: Jonathan Corbet <corbet@lwn.net>
Cc: Kent Overstreet <kent.overstreet@linux.dev>
Cc: Sourav Panda <souravpanda@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-08-24 18:43:12 -07:00
Stanislav Fomichev
bd7d30bd1d xsk: align TX metadata layout across ABIs
Add explicit padding before launch_time so xsk_tx_metadata has the same
layout on 32-bit and 64-bit systems.

On several architectures (csky, i386, nios2, m65k, openrisc, sh), the old
native 32-bit layout put launch_time at offset 12 and had a natural size of
20 bytes. Using sizeof(struct xsk_tx_metadata) as tx_metadata_len was already
rejected because the length must be a multiple of eight, so the
straightforward use of the interface was broken on those ABIs. Userspace
could still register a padded length of 24 bytes, though; mixing the old and
new layouts then silently reads launch_time from the wrong offset and
misprograms packet launch times. This intentionally replaces that
incompatible layout because the affected architectures are unlikely to
have any notable users. (x86_64 and arm64 have the most users and are _not_
affected)

Fixes: ca4419f15a ("xsk: Add launch time hardware offload support to XDP Tx metadata")
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Stanislav Fomichev <sdf@fomichev.me>
Link: https://patch.msgid.link/20260819160535.1472459-2-sdf@fomichev.me
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-24 11:11:59 -07:00
Linus Torvalds
5b05bb3f6c Merge tag 'platform-drivers-x86-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86
Pull x86 platform driver updates from Ilpo Järvinen
 "Highlights:

  Major refactoring effort: stop setting acpi_device_name/class() and
  pnp.device_class to facilitate their eventual removal

  Many rollback/remove path fixes (presumably mostly found by AI)

  Miscellaneous cleanups / refactoring / improvements

  amd/halo:
   - Add Halo RGB LED driver

  amd/hsmp:
   - Properly serialize probe, remove, and data paths
   - Add support for protocol v7 used by Family 1AH Model 80H
   - Fix error checking corner cases (largely from AI review)
   - Reject negative power cap

  amd/pmc:
   - Improve behavior on platforms that do not support STB
   - Add T14 Gen2 AMD (20XL) to s2idle quirk list

  amd/pmf:
   - Add ioctl interface to retrieve device metrics
   - Add support for new metrics tables used by Family 1AH Model 80H

  qcom-hamoa-ec (arm64):
   - Reject short responses

  asus-nb-wmi:
   - Support ProArt key on ASUS ProArt PX13

  asus-armoury:
   - Gate PPT writes behind active fan curve
   - Add power limits for more models

  dell-wmi-base:
   - Fix handling of ultra performance key

  dell-wmi-sysman:
   - Don't hex dump attribute security buffer

  hp-bioscfg:
   - Various fixes
   - Improve reduced ACPI packages support (necessary for HP EliteBook 840 G2)

  lg-laptop:
   - Fix LED resource handling
   - Add support for events used in newer models
   - Fix keyboard backlight support on LG Gram 16T90SP

  hp-wmi:
   - Generalize thermal params to board params
   - Manage CPU and GPU PWM independently
   - Add GPU MUX switch support
   - Add Victus 15-fb0xxx support
   - Add OMEN MAX 16-ak0xxx, OMEN 16-n0xxx, OMEN 16-wd0xxx, OMEN
     16-wf0xxx, and OMEN board ID 8D88 support
   - Add OMEN Transcend 16-u0xxx support

  huawei:
   - Add support for Fn-lock ACPI interface found on newer Huawei
     laptops such as MateBook 14 2024

  ISST:
   - Improve input validation (many fixes)
   - Disallow SST-CP (core-power) feature if perf profile add fails

  lenovo/yb9-kbdock:
   - Add driver for Yoga Book 9 14IAH10

  lenovo/ymc:
   - Extend hinge switch query to support Yoga 9 2-in-1 14IPH11
   - Prevent loading on Yoga Book 9 14IAH10 to avoid duplicated input
    nodes

  msi-ec:
   - Add MSI Raider A18 HX A9WJG and MSI Katana GF76 11UEK support

  msi-wmi:
   - Add MSI Claw M-Center keys support

  oxpec:
   - Add support for OneXPlayer X2 Mini Pro

  redmi-wmi:
   - Report kbd backlight cycle, OEM preset power mode, and FnLock
     toggle events to userspace

  samsung-galaxybook:
   - Add Samsung Galaxy Book6 Pro support

  thinkpad_acpi:
   - Add USB-C Security support

  uniwill-laptop:
   - Add keyboard backlight, AC auto boot, and USB powershare support
   - Add MACHENIKE L16 Pro, AiStone X4SP4NAL, and Avell A60 MUV support
   - Make lightbar max brightness configurable and add support for
     LAPQC71A/B"

* tag 'platform-drivers-x86-v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86: (152 commits)
  platform/x86: think-lmi: Fix current password length check
  platform/x86: redmi-wmi: report EC state change events
  MAINTAINERS: update Intel PMC Core maintainer contact
  platform/x86: oxpec: Add support for OneXPlayer X2 Mini Pro
  platform/x86: thinkpad_acpi: Fix fan speed reporting on Edge E330
  platform/x86: msi-ec: Add MSI Katana GF76 11UEK EC firmware
  platform/x86: think-lmi: Fix certificate thumbprint sysfs output
  mlxbf-bootctl: fix the build error with FIELD_PREP()
  platform/x86: think-lmi: Free system certificate signatures
  platform/x86: ISST: Add a NULL check for sst_inst[]
  platform/x86: ISST: Return error during profile addition
  platform/x86: ISST: Just allow 2 bits for SST feature enable
  platform/x86: ISST: Use PP level enable mask
  platform/x86: ISST: Validate parameter for frequency and priority
  platform/x86: ISST: Validate parameter for core power state
  platform/x86: ISST: Validate max level for set feature
  platform/x86: ISST: Validate logical CPU id and clos id
  platform/x86: ISST: Validate level in perf mask ioctls
  platform/x86: ISST: Validate socket ID in clos_assoc ioctl
  platform/x86/amd/hsmp: Reject negative power cap writes in hwmon
  ...
2026-08-24 10:16:35 -07:00
Dave Airlie
e91d58cb2f Merge tag 'drm-msm-next-2026-08-01' of https://gitlab.freedesktop.org/drm/msm into drm-next
Changes for v7.3

Bindings:
- Added Shikra support
- Document a840, a704, a722

Core:
- Use drm_client buffers for fbdev emulation
- teardown fixes
- ARM32 DMA fixup
- Remove objects from evict list when re-validated
- Bunch of corner case and error path fixes

DPU:
- Dropped dev_pm_opp_set_rate(0) preventing burnout
- Fixed SSPP offsets of Kaanapali

DP:
- Dropped dev_pm_opp_set_rate(0) preventing burnout
- Cleaned up core code in preparation for MST support
- Fixed prepare() to let Pipewire continue in case of the unplugged cable

GPU:
- Add support for a704
- Add support for a722

HDMI:
- Simplifed register access

Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Rob Clark <rob.clark@oss.qualcomm.com>
Link: https://patch.msgid.link/CACSVV02Kp=J+w_RjEJbBbQnBYRb+SWdwMvVbCaAL70bq9EBagQ@mail.gmail.com
2026-08-24 11:21:12 +10:00
Linus Torvalds
b6b019a1d9 Merge tag 'parisc-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux
Pull parisc architecture updates from Helge Deller:

 - Drop PER_HPUX personality from UAPI headers

 - Infinite loop fix when parsing IRQ value in eisa code

 - Switch to use asm-generic/serial.h

 - Prevent possible unaligned asm code in head.S

* tag 'parisc-for-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/deller/parisc-linux:
  parisc: eisa: Fix infinite loop when parsing invalid IRQ value
  parisc: Fix alignment of asm statements in head.S
  parisc: eisa_eeprom: Add missing MODULE_DESCRIPTION()
  parisc: Use asm-generic/serial.h
  parisc: sba_iommu: Remove dead DEBUG_DMB_TRAP code
  UAPI: Drop PER_HPUX personality
  parisc: superio: Spelling s/Peterson/Petersen/
2026-08-23 10:30:02 -07:00
Linus Torvalds
66fb95a521 Merge tag 'caps-pr-20260820' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux
Pull capabilities update from Serge Hallyn:
 "Just one trivial patch which corrects two comments to avoid kernel-doc
  warnings"

* tag 'caps-pr-20260820' of git://git.kernel.org/pub/scm/linux/kernel/git/sergeh/linux:
  capability: remove non-kernel-doc comments
2026-08-22 09:11:40 -07:00
Linus Torvalds
7199989f3f Merge tag 'landlock-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux
Pull Landlock update from Mickaël Salaün:
 "This improves observability with Landlock tracepoints support, which
  required some refactoring for dedicated domain types and common
  helpers shared with audit code.

  A LANDLOCK_RESTRICT_SELF_NO_NEW_PRIVS flag is also added to improve
  process-wide domain enforcement consistency.

  Whiteout files are now correctly handled and tested, and a few other
  fixes"

* tag 'landlock-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/mic/linux: (34 commits)
  landlock: Document tracepoints
  selftests/landlock: Add landlock_enforce_domain trace tests
  selftests/landlock: Add scope and ptrace tracepoint tests
  selftests/landlock: Add network tracepoint tests
  selftests/landlock: Add filesystem tracepoint tests
  selftests/landlock: Add trace event test infrastructure and tests
  landlock: Add tracepoints for ptrace and scope denials
  landlock: Add landlock_deny_access_fs and landlock_deny_access_net
  landlock: Add tracepoints for rule checking
  landlock: Add landlock_enforce_domain tracepoint
  landlock: Add create_domain and free_domain tracepoints
  landlock: Add landlock_add_rule_fs and landlock_add_rule_net tracepoints
  landlock: Add create_ruleset and free_ruleset tracepoints
  landlock: Consolidate access-right and scope names in a shared header
  landlock: Decouple the per-denial logging decision from CONFIG_AUDIT
  landlock: Split denial logging from audit into common framework
  landlock: Split struct landlock_domain from struct landlock_ruleset
  landlock: Move domain query functions to domain.c
  landlock: Prepare ruleset and domain type split
  samples/landlock: Add LANDLOCK_RESTRICT_SELF_NO_NEW_PRIVS to sampler
  ...
2026-08-21 12:28:35 -07:00
Linus Torvalds
21bd0802cd Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma
Pull RDMA updates from Jason Gunthorpe:
 "About the normal size, still a lot of AI bug fixes and so on, but some
  interesting new functionality too:

   - Assorted locking, bounds-checking, cleanup, and error-path fixes
     across UCMA/CMA, bng_re, bnxt_re, cxgb4, EFA, ERDMA, HFI1, HNS,
     ionic, iRDMA, mlx4/mlx5, RXE, SIW, SRP/SRPT, and iSER target.

   - netlink report for max # of supported resources

   - get_zeroed_page()/etc removal

   - Robust udata for ionic

   - Allow unique RDMA device names per network namespace

   - Completion counters and v2 admit queue support for EFA

   - UC QP support for MANA

   - Completion timestamps for ionic

   - Harden uverbs data validation and resource lifetime handling,
     fixing several core use-after-free conditions.

   - bnxt_re toggle-page ownership and lifetime bug fixes

   - dmabuf SRQ support for mlx5"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rdma/rdma: (160 commits)
  RDMA/ucma: Allow path records to exactly fit the output buffer
  RDMA/uverbs: Guard legacy bundles without method_elm
  RDMA/efa: Add support for 128B admin v2 SQ entry
  RDMA/efa: Generalize the admin SQ
  RDMA/efa: Decouple admin command payload from admin header
  RDMA/rxe: Fix OOB in free_rd_atomic_resources()
  RDMA/cma: Fix WARNING in res_to_rt
  RDMA/cxgb4: Free debugfs on registration failure
  RDMA/cxgb4: Cancel reg_work before freeing device on remove
  RDMA/ucma: Lock the handler in ucma_set_ib_path()
  RDMA/ucma: Lock the handler in ucma_write_cm_event()
  RDMA/erdma: restrict the driver to little-endian systems
  RDMA/ionic: Embed counter driver data in rdma_counter allocation
  RDMA/ionic: Cap eq_count to the eth driver's interrupt vector budget
  RDMA/siw: Fix use-after-free in siw_accept()
  IB/isert: post the full-feature receive buffers after session registration
  IB/isert: delay the final Login Response until the session is registered
  RDMA/srp: fix heap information leak on a truncated SRP_CRED_REQ
  RDMA/erdma: Hold QP references for AE and CM processing
  RDMA/erdma: Hold CQ references when processing EQ events
  ...
2026-08-21 11:48:54 -07:00
Linus Torvalds
35748ddd3b Merge tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi
Pull SCSI updates from James Bottomley:
 "One new driver: leapraid (similar to mpi3mr but OK'd by Broadcom). The
  usual suspects for driver updates (ufs, qla2xxx, smartpqi, zfcp, fnic,
  ibmvfc) plus a few small core updates: a fix for an uninitialized sg
  list pad bytes plus the removal of the dma mask check for max sectors.

  The big update in the sd driver is mostly code refactoring for obscure
  error leg handling"

* tag 'scsi-misc' of git://git.kernel.org/pub/scm/linux/kernel/git/jejb/scsi: (195 commits)
  scsi: fnic: Fix built-in NVMe/FC build
  scsi: fnic: Fix invalid comparison for error
  scsi: core: Fill in DMA padding bytes in scsi_alloc_sgtables()
  scsi: zfcp: Enable CONTEXT_ANALYSIS
  scsi: zfcp: Add __must_hold() attribute to zfcp_qdio_sbal_get()
  scsi: fnic: Use GFP_ATOMIC for VLAN alloc under spinlock
  scsi: storvsc: Support manual scans for all Hyper-V targets
  scsi: sd: Fix sd_done() sense handling condition
  scsi: sd: Fix special_vec mempool leak when scsi_alloc_sgtables() fails
  scsi: sd: Fix error handling in sd_probe() after large pool creation failure
  scsi: leapraid: Add driver documentation
  scsi: leapraid: Add new SCSI driver
  scsi: ufs: Add support for the aggregated read query opcode
  scsi: ufs: Use unsigned types for the BSG query
  scsi: ibmvfc: Fix spelling mistake "Deleteing" -> "Deleting"
  scsi: qla2xxx: Update version to 12.00.00.2607b2
  scsi: qla2xxx: Bound i2c->length in I2C bsg handlers
  scsi: qla2xxx: Zero SFP DMA buffer in FRU/I2C bsg handlers
  scsi: qla2xxx: Validate BSG request_len before reading vendor_cmd[]
  scsi: qla2xxx: Zero-init bsg stack buffers to avoid info leak
  ...
2026-08-21 11:23:20 -07:00
Linus Torvalds
4e69c1856b Merge tag 'drm-next-2026-08-20' of https://gitlab.freedesktop.org/drm/kernel
Pull drm updates from Dave Airlie:
 "Highlights:

   - dmemcg eviction support is good for low VRAM things like Steam
     Machine

   - AMD adds gfx6-8 modifier support for older GPUs that enables a
     bunch of wayland stuff

   - i915/xe has some new hw support but also a lot of display
     refactoring

  Everything:

  perf:
   - export perf_allow_ APIs for xe

  udmabuf:
   - remove default size limit of 64MB

  rust:
   - i/o rework (signed tag from driver-core tree)
   - add registration guard and registration data
   - fix unbounded lifetimes in ioctl handler args
   - fix a drm_dev_register race
   - gem_shmem: add DmaResvGuard helper
   - gpuvm: require send/sync for driver data
       - implement send/sync for GpuVaAlloc and GpuVmBo
       - add SmContext lifetime
   - rename dma_handle to dma_address
   - change pci_sriov_get_totalvfs return to unsigned int

  core:
   - create drm_of_get_panel_orientation
   - send per-connector hotplug events
   - add thunderbolt UBHR tunneling support

  connector:
   - add color format property

  dmem:
   - introduce a peak file
   - accept one region per limit
   - add dmemcg support for eviction

  gpusvm:
   - reorg code to give drivers more flexibility

  atomic:
   - add create_state callback and helper
   - add documentation on atomic commit lifetime

  buddy:
   - add per-order free
   - add used block scoreboard
   - fix UAF
   - test buffer clearance on resume
   - add phys_addr->block helper

  gem:
   - drop DRIVER_GEM_GPUVA flag

  ttm:
   - be more aggressive allocating below protection limit

  sched:
   - add test suite for concurrent job submissions

  hdmi:
   - hook the color format property in helpers

  mipi-dsi:
   - add MIPI_DSI_MODE_DSC_ALL_SLICES_IN_PKT

  bridge:
   - add atomic create callbacks
   - drop atomic reset
   - display-connector: don't autoenable HPD IRQ
   - trigger initial HPD for DP
   - ti-sn65dsi83: remove NO_HFP and NO_HBP mode flags
   - analogix_dp: switch to DP link training helpers

  dp:
   - add support for DSC max delta BPP

  edid:
   - parse panel type from DisplayID 2.x Display Parameters

  sysfb:
   - improve panel, stride, framebuffer size validation

  panel:
   - implement ref counting for struct drm_panel
   - himax-hx83121a: add backlight regulator support
   - novatek-nt36672a: Inline panel init sequences
   - visionox-vtdr6130: enable DSC
   - novatek-nt37801: Use mipi_dsi_*_multi() functions
   - samsung-s6d16d0: Fix prepare error handling
   - support Novatek NT36536 plus DT bindings
   - sofef00: fix backlight updates
   - osd101t2587: use mipi_dsi_*_multi interface
   - panel-edp: adjust timing for AUO displays
   - panel-lvds: support Opto Logic SCX1001511GGC49
   - panel-simple: support Kyocera tcg070wvlq
   - panel-edp: quirks
       - AUO B116XAT04.3, CMN N116BCP-EA2, CSW MNB601LS1-8
       - BOE NV116WH2-M30, BOE NT116WHM-N21, BOE NV116FH1-M31
       - BOE NV116FH1-M30, NV140FHM-N5B, TM156VDXP25
       - BOE NE160QDM-NY1, MB116AS01
   - new:
       - Samsung ATNA40HQ08-0, Anbernic TD4310
       - Chipone ICNA35XX, Ilitek ILI9488
       - Ilitek ILI7807S, Renesas R63419
       - MNE001BS6-2, MNF601BS4-1, Sharp LQ120P1JX51

  virtio:
   - add support for save/restore virtio_gpu_objects
   - abort vq wait on device removal

  amdgpu:
   - add color format DRM property
   - initial compute pipe reset support
   - add GFX 6-8 modifier support
   - initial DCN 6.0.0 support
   - dmemcg eviction support
   - improved boundary checking for bios parsing
   - RAS updates and rework
   - VCN secure submission fixes
   - 8K panel fix
   - Display KUNIT tests
   - parse panel type from DisplayID
   - Align IP discovery to pci device lifetime
   - SOC15 register macro cleanups
   - UVD memory placement fixes
   - GFX9 mode2 reset fixes
   - drop unnecessary BUG/BUG_ON
   - GFX8 soft reset rework
   - enable soft reset on GFX8
   - PSP/SMU 15.0.9 update
   - VI ASPM fix
   - userq fixes
   - amdgpu_vm_get_task_info_pasid lifetime fix
   - DC CACP support
   - change system_unbound_wq with system_dfl_wq
   - Loosen VFCT bios parsing to deal with pci=realloc
   - SI/SMU7 AC/DC switch fix
   - VM fence handling fix
   - GEM close optimisation
   - Apple Studio Display fixes
   - DC FRL fixes

  amdkfd:
   - initial compute pipe reset support
   - allow applications to opt out of sigbus on fatal errors
   - improve CRIU boundary checks
   - MQD handling rework
   - move TBA/TMA from system to device memory
   - avoid topology-lock in kfd_mmap
   - SVM eviction fixes

  radeon:
   - fix unset CONFIG_ACPI build

  i915:
   - Novalake (NVL display version 35) timing generator enabling
   - NVL DC3CO enabling
   - enable UBHR link rates on thunderbolt tunnels
   - Reduce Xe3+ PM demand peak bandwidth
   - enable pipe DMC error interrupts for display 30+
   - add kunit tests for DP link config selection
   - refactor and document DP link recovery
   - i915/xe driver display probe/remove/suspend/resume/shutdown cleanup
     and unification
   - i915/xe display runtime PM unified
   - Break i915 and xe panic dependency on struct intel_framebuffer
   - Streamline Pre/Post-CSC LUT loops
   - drop TGL DC3DO support
   - CDCLK santization
   - fix HDMI scrambling enable
   - fix phys bo pread/pwrite with offset
   - add missing nospec on parallel submit slot
   - fix some NULL derefs

  xe:
   - drop force_execlist module param
   - gate observation streams with perf_allow_cpu
   - skip FORCE_WC and vm_bound check for external dma-bufs
   - dmemcg eviction support
   - remove unused NVL-S GuC
   - TLB invalidation improvements
   - NVL-S updated PCI-IDs and w/a
   - madvise: optimise invalidation path
   - fix infinite gt-reset loop in timeout recovery
   - update TTM device benefical_order
   - wait on external BO kernel fences in exec ioctl
   - add/use more KLV helpers
   - sriov: disable display in admin only PF mode
   - add RAS GPU health indicator
   - optimise TTM populate for DONTNEED BO
   - drop force_probe for NVL-s
   - add debugfs for pcode info

  amdxdna:
   - disable device buffer export

  nova:
   - build nova-core/nova-drm from drivers/gpu
   - export nova-core rust symbols (workaround)
   - GSP boot process consolidation
   - Boot GSP with vGPU enabled
   - TLV firmware image format support
   - Hopper/Blackwell fixes and cleanups
   - I/O projection adoption

  tyr:
   - firmware loading and MCU boot
   - add generic slot manager + MMU
   - GPU VM support ARM64 LPAE page tables
   - add kernel buffer object for internal allocations
   - add parser for Mali CSF
   - add MCU booting

  nouveau:
   - race fixes
   - check instmem iomapping at first use
   - add dmemcg support
   - expose NVDEC channels
   - add scanline position/head state support for GSP

  qxl:
   - convert simple encoder to regular

  ethosu:
   - add perf counter support

  etnaviv:
   - force flush on power register ops

  msm:
   - support DSC configuration with slice_per_pkt > 1

  mxsfb:
   - fix disable sequence

  panthor:
   - support sparse mappings

  rockchip:
   - switch away from simple helpers
   - support YUV background color
   - fix layer config timeout
   - add edp support for rk3576
   - add batch command submission function

  rocket:
   - error handling and NULL ptr deref fixes

  sun4i:
   - switch away from simple helpers

  imagination:
   - mark BXM-4-64 MC1 as support

  host1x:
   - support tegra264

  tegra:
   - add DSI for tegra 20/30

  v3d:
   - reduce PM runtime autosuspend delay
   - scheduler fixes and refactoring
   - deprecate v3d 3.3 and 4.1
   - validate CPU job query boundaries

  hibmc:
   - improve plane format handling
   - switch to gem shmem

  mediatek:
   - cec: correct compat for mt7623-8167?

  exynos:
   - remove simple dependency
   - add error handling to encoder paths
   - take i2c adapter module reference"

* tag 'drm-next-2026-08-20' of https://gitlab.freedesktop.org/drm/kernel: (2074 commits)
  drm/xe/mcr: Take vcs1/vecs1 into account for first media slice
  drm/xe: Fix a bug in pc_adjust_freq_bounds()
  drm/xe: Fix xe_device_probe() failure
  drm/xe/drm_ras: Move has_drm_ras check to drm_ras layer
  drm/xe/ras: Fix boot-time ras error processing
  drm/amd/display: make DC_RUN_WITH_PREEMPTION_ENABLED misuse a build error
  drm/amd/pm: silence uninitialized variable warnings
  drm/amdgpu: skip BOs being torn down during GTT recovery
  drm/amdgpu: Reject UVD message with invalid number of h265 refs
  drm/amdgpu: keep PRT mappings off the vm_bo state lists
  drm/amdgpu: fix nbif 6.3.1 l1 low power not functional
  drm/amd/display: fix BT.2020 YCbCr output CSC matrices for DCE
  drm/amd/display: fix BT.2020 YCbCr limited output CSC matrix
  drm/amdgpu: Implement insert_end for VCE 3
  drm/amdgpu: Fix UVD min buffer sizes
  drm/amdgpu: Fix UVD decode image min size calculation
  drm/amdgpu: Fix UVD dpb min size calculation for H264
  drm/amdgpu: Reject UVD message with dimensions above 4096
  drm/amdgpu: check ASPM on the dGPU host link
  drm/radeon: fix autosuspend cleanup during teardown
  ...
2026-08-21 08:41:00 -07:00
Linus Torvalds
ed3b875bea Merge tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm
Pull MM updates from Andrew Morton:

 - "mm: drop "sub" prefix from various places" (Dev Jain)

   page->folio conversion and a naming cleanup

 - "mm/kasan: remove redundant initialization for kasan_flag_write_only"
   (Igor Putko)

   KASAN cleanup work

 - "mm/filemap: reduce unnecessary xarray lookups" (Chi Zhiling)

   Small speedup in the pagecaache read code

 - "mm/percpu: Fix possible NOFS/NOIO reclaim recursion" (Kaitao Cheng)

   Improve the vmalloc code - mainly the avoidance of GFP_KERNEL
   allocations when the caller asked for GFP_NOFS or GFP_NOIO

 - "mm/kmemleak: avoid soft lockup when scanning task stacks" (Breno
   Leitao)

   Avoid a soft lockup watchdog trigger from the kmemleak scanning code
   in extreme situations

 - "mm/page_owner: misc cleanups" (Ye Liu)

   Cleanups to the page_owner code. For some reason lots of people have
   been working on the page_owner code this cycle.

 - "mm: convert to walk_page_range_vma() to eliminate find_vma()"
   (Kefeng Wang)

   Simplify and accelerate the page walking library function

 - "mm/migrate: preparatory cleanups for batch copy and offload"
   (Shivank Garg)

   Cleanups in the migration code

 - "mm/page_owner: add per-fd filter infrastructure for print_mode and
   NUMA filtering" (Zhen Ni)

   Per-fd filtering to page_owner in order to reduce the sometimes vast
   amount of output it can produce

 - "mm: Refactor bootmem gigantic hugepage allocation" (Muchun Song)

   Fixes and preparatory cleanups around bootmem HugeTLB handling,
   sparse initialization ordering, and related vmemmap setup

 - "mm/zsmalloc: reduce lock contention in zs_free()" (Wenchao Hao)

   Reduce lock contention in zs_free(), which dominates the unmap path
   under memory pressure on Android (LMK kills) and on x86 servers
   running zswap-heavy workloads.

   Up to 1.83x improvement in microbenchmarking.

 - "move alloc_tag.c file under mm/" (Suren Baghdasaryan)

 - "samples/damon: handle damon_{start,stop}() failures" (SJ Park)

   Fix improper handling of damon_start(), damon_stop(), and
   damon_call() failures across DAMON sample modules to prevent
   potential memory leaks, operation disruptions and use-after-free
   bugs

 - "mm/damon/sysfs: kobject_del() directories that users can
   create/remove" (SJ Park)

   Fix delayed sysfs directory removal under DEBUG_KOBJECT_RELEASE
   causeing creation failures due to duplicate directory names by adding
   missing kobject_del() calls before creating new directories

 - "mm: cleanup clear_not_present_full_ptes()" (David Hildenbrand)

   Clean up the core pte handling code

 - "selftests/damon: misc fixes for test bugs" (Kunwu Chan)

   Fix several bugs in the DAMON selftests

 - "selftests/damon: fix memcg_path staging handling" (Cheng Nie)

   Fix a bug in _damon_sysfs.py for damos_filter memcg_path setup, and
   add a test case for it in sysfs.py.

 - "selftests/damon: test kdamond refresh_ms" (Ruslan Valiyev)

   Selftest coverage for DAMON's refresh_ms sysfs feature by updating
   the test control module and verifying that scheme stats update
   automatically without manual intervention

 - "mm/damon: five misc fixups" (Akinobu Mita)

   Miscellaneous DAMON fixups.

 - "mm/damon/core: detect internal variation above max_nr_regions/2"
   (Jiayuan Chen)

   Fix DAMON's region splitting behavior when region counts exceed half
   the maximum budget by dynamically scaling down the split fraction as
   the limit approaches, preventing large regions from staying un-split,
   and add corresponding KUnit test coverage

 - "mm: preparatory patches for PMD level swap entries" (Usama Arif)

   Refactor and clean up PMD softleaf helpers, call sites, and
   architecture flags to lay the groundwork for a follow-up series that
   introduces PMD page table swap entries

 - "mm/damon: update, optimize, and clean up doc, tests, and code" (SJ
   Park)

   Update DAMON design and ABI documentation, expands unit and selftest
   coverage, optimize damon_commit_target_regions(), and clean up
   recently added sysfs interface code for better readability

 - "mm/vmpressure: reduce CPU, memory and code overhead on cgroup v2"
   (Usama Arif)

   Optimize vmpressure() by skipping unnecessary work on cgroup v2 for
   userspace event notifications and refactor v1-only eventfd handling
   into mm/memcontrol-v1.c to reduce memory overhead and code complexity

 - "selftests/mm: refactor pkey helpers and fix mmap error handling"
   (Hongfu Li)

   Refactor pkeys shared tracing and assertion helpers into a common
   file, unify protection key selftests to use consistent diagnostic
   logging and assertions, and enforce standardized MAP_FAILED return
   checks for mmap() calls across the tests

 - "mm/damon: optimize out nr_accesses_bp" (SJ Park)

   Replace the error-prone, continuously updated nr_accesses_bp field in
   damon_region with an on-demand moving sum function, reducing
   structure memory overhead and avoiding state corruption bugs

 - "Open HugeTLB allocation routine for more generic use" (Ackerley Tng)

   Decouple HugeTLB folio allocation from VMA dependencies by
   introducing hugetlb_alloc_folio(), enabling subsystems like
   guest_memfd to allocate HugeTLB folios without standard VMA
   reservations or pseudo-VMAs

 - "mm/damon: provide pseudo moving sum probe_hits" (SJ Park)

   Integrate DAMON's probe_hits attribute counter into the pseudo moving
   sum infrastructure, enabling real-time, online monitoring without
   waiting for full aggregation intervals

 - "mm: Some cleanups for page allocator APIs" (Brendan Jackman)

   Simplify and refactor the page allocator entry points and flags by
   unifying allocation paths, adding internal alloc_flags arguments, and
   eliminating redundant __ prefixed alloc_pages variants.

 - "Fix incorrect access of hugetlb pte entries" (Dev Jain)

   Enforce the consistent use of huge_ptep_get() instead of ptep_get()
   for HugeTLB entries and fixes an unaligned address issue in arm64's
   huge_ptep_get() implementation

 - "mm/damon: validate all parameters in the core" (SJ Park)

   Consolidate parameter validation into the DAMON core specifically
   within damon_start() and damon_commit_ctx() to centralize error
   checking, eliminate caller-side redundant checks and to improve
   maintenance efficiency

 - "tools/mm/page_owner_sort: fix filtering and cleanup issues" (Yichong
   Chen)

   Rename is_need() to filter_record() for clearer return semantics, fix
   per-record allocation memory leaks and bound output copies in
   search_pattern() to address an existing buffer issue

 - "memcg: bail out reclaim when memcg is dying" (Jiayuan Chen)

   Mitigate a system-wide stall which occurs when a cgroup is removed
   while one of its memory control files is doing synchronous reclaim

 - "mm/memory-failure: add panic option for unrecoverable pages" (Breno
   Leitao)

   Introduce an opt-in vm.panic_on_unrecoverable_memory_failure sysctl
   that immediately panics the kernel on unrecoverable memory errors in
   kernel-owned pages to preserve error context and prevent delayed,
   silent data corruption

 - "mm/damon: refactor damon_{start,stop,commit}() for simple error
   handling" (SJ Park)

   Refactor the DAMON core API functions to guarantee that all contexts
   are fully stopped when damon_start(), damon_stop(), or damon_commit()
   fail, eliminating the need for complex and error-prone caller-side
   cleanup code

 - "Keep tail page private zero at free and folio split" (Zi Yan)

   Add checks to ensure tail_page->private is zero when freeing compound
   or high-order pages and when promoting tail pages during large folio
   splits. By validating these fields at free and split time, it allows
   the removal of redundant private field clearing inside
   prep_compound_tail()

 - "mm: drop redundant lru_add_drain in anon folio reuse paths" (Barry
   Song)

   Eliminate redundant lru_add_drain() calls in
   wp_can_reuse_anon_folio() and do_swap_page() to reduce LRU lock
   contention and system overhead

   By validating folio refcounts against the LRU cache before draining
   and removing unnecessary drains in the swap path, it achieves up to a
   30.5% reduction in drain calls during heavy swap workloads

 - "mm: clean up folio LRU and swap declarations" (Jianyue Wu)

   Reorganize folio LRU and swap code by relocating page-cluster state
   to mm/swap_state.c, renaming mm/swap.c to mm/folio.c, and moving
   MM-internal reclaim declarations into mm/internal.h.

 - "userfaultfd: working set tracking for VM guest memory" (Kiryl
   Shutsemau)

   Add userfaultfd support for tracking the working set of VM guest
   memory, so a VMM can identify hot pages and reclaim cold ones to
   tiered or remote storage

 - "mm: remove CONFIG_HAVE_BOOTMEM_INFO_NODE (Part 2)" (David
   Hildenbrand)

   Remove the remaining pieces of CONFIG_HAVE_BOOTMEM_INFO_NODE,
   performing some smaller cleanups around freeing of reserved vmemmap
   pages on the way.

 - "mm/damon: update probe hits for runtime parameter commits" (SJ Park)

   Ensure that DAMON's probe_hits attribute counter is properly updated
   when monitoring intervals are changed at runtime, matching the
   behavior of nr_accesses. To achieve this, it refactors and renames
   existing helper functions for shared use, applies the updates to
   probe_hits, and handles edge cases in damon_probe_hits_mvsum() to
   maintain measurement accuracy.

 - "KSM: performance optimizations for rmap_walk_ksm" (xu xin)

   Resolve a severe KSM reverse-mapping performance bottleneck where
   thousands of split VMAs sharing a single anon_vma cause extended lock
   contention.

   By adding an interval-filtering check during the rmap walk, it
   reduces worst-case anon_vma lock hold times from over 500ms down to
   under 2ms, preventing application freezes and latency spikes under
   memory pressure.

 - "mm: split a couple of headers from internal.h" (Mike Rapoport)

   Split declarations related to mm_init, memblock, vmalloc and sparse
   into new headers

 - "KSM: use linear_page_index in collect_procs_ksm()" (xu xin)

   Apply the interval tree optimization from rmap_walk_ksm() to
   collect_procs_ksm() to avoid iterating over non-matching VMAs during
   KSM memory error handling.

   It hoists loop-invariant address initialization and restricts the
   anon_vma_interval_tree_foreach walk to a targeted page offset range,
   reducing redundant checks and improving lookup efficiency.

 - "selftests/mm: avoid false failures in hugetlb and KSM tests" (Sayali
   Patil)

   Fix issues in the hugetlb and KSM MM selftest categories that can
   report failures when the prerequisites for the tests are not
   satisfied

 - "mm/damon: introduce data attributes only monitoring" (SJ Park)

   Introduce attribute-weighted region management in DAMON, allowing
   users to prioritize specific data attributes (such as page sizes or
   cgroups) over or instead of access monitoring.

   By assigning weights to attribute probes, DAMON can completely
   disable access tracking and adjust monitoring regions based on
   weighted probe-hit counters to optimize monitoring quality for
   attribute-focused workloads.

 - "mm/hmm: Add mmap lock-drop support for userfaultfd-backed mappings"
   (Stanislav Kinsburskii)

   Extend hmm_range_fault() to support userfaultfd-backed regions by
   allowing the mmap lock to be dropped during fault handling via a new
   hmm_range_fault_locked() helper.

   By accepting a locked pointer and signaling retry status when lock
   release occurs, it enables page fault resolution in userfaultfd
   regions while preserving backward compatibility for existing callers.

 - "mm: make VMA page offset handling more consistent" (Lorenzo Stoakes)

   Clean up and standardize how vma->vm_pgoff is accessed and
   manipulated across file-backed and anonymous mappings in the kernel

   It introduces dedicated helper functions such as vma_start_pgoff(),
   vma_end_pgoff(), vma_set_pgoff() and linear_page_delta() while
   renaming rmap interval tree helpers to better reflect their
   functionality.

   These changes establish a cleaner foundation for future work that
   will unify virtual page offset indexing for all anonymous and CoW'd
   folios.

 - "mm: handle device-private PMDs in walk callbacks" (Usama Arif)

   Address kernel panics and state corruption caused by MM walk
   callbacks reaching non-present device-private PMD swap entries
   created during HMM migrations

   It ensures that functions which acquire pmd_trans_huge_lock()
   properly recognize device-private PMDs instead of assuming a present
   THP or a standard migration entry.

 - "mm/rmap: Refactor try_to_unmap_one" (Dev Jain)

   Refactor try_to_unmap_one by modularizing Hugetlb,
   anonymous-lazyfree, and anonymous-swapbacked logic into dedicated
   functions, laying the structural groundwork for batched anonymous
   large folio unmapping.

 - "Docs/ABI/damon: sysfs ABI document fixes and additions" (Song Hu)

   Fix typos and fills in missing entries in the DAMON sysfs ABI
   document

 - "dax/kmem: atomic whole-device hotplug via sysfs" (Gregory Price)

   Introduce an atomic sysfs state attribute and supporting DAX/MM
   infrastructure to prevent userland races when offlining and removing
   entire memory regions

   By adding an unplugged state alongside standard online modes, it
   enables whole-device atomic hotplug control while preserving backward
   compatibility.

 - "mm: convert more vm_flags_t users to vma_flags_t" (Lorenzo Stoakes)

   Continue transitioning the kernel from the deprecated vm_flags_t type
   to vma_flags_t across core memory management infrastructure.

   It replaces legacy type usage in core functions such as do_mmap(),
   unmapped area allocation, mm->def_vma_flags, and VMA operations like
   mlock, mprotect, and mremap.

 - "Two small patches to clean up mm/mm_slot.h" (xu xin)

   Refactor mm_slot.h by introducing mm_slot_remove() to unify duplicate
   slot deletion sequences in khugepaged and KSM. It also adds code
   documentation explaining why mm_slot_lookup and mm_slot_insert must
   remain as preprocessor macros rather than static inline functions.

 - "mm/damon/core: hide core-private struct fields" (SJ Park)

   Clean up DAMON core structures by consistently marking internal-only
   fields with private: comment tags to prevent improper direct access
   from outer layers.

   It enforces encapsulation across core structures including
   damon_region, damon_target, and damon_ctx and updates DAMON_SYSFS to
   interact through approved access APIs instead of exposing raw struct
   members.

 - "mm/damon: unurgent fixes for infinite loop, NULL de-ref and races"
   (SJ Park)

   Address potential infinite loops, NULL dereferences, and race
   conditions identified in DAMON

   It fixes an infinite loop triggered by extreme user configurations, a
   NULL pointer dereference within unit tests and minor monitoring
   accuracy degradation caused by subtle runtime races.

 - "mm/page_alloc: fixes for free_pages_nolock() on RT/UP" (Brendan
   Jackman)

   Fix an NMI safety flaw in __free_frozen_pages() where freeing pages
   on non-SMP or PREEMPT_RT kernels can bypass can_spin_trylock() checks
   via non-PCP or isolated migration paths.

   It also resolves potential kernel crashes and privilege escalation
   risks triggered when BPF tracing runs in NMI context alongside memory
   hotplug or large allocation frees.

 - "mm/page_alloc: couple of followups for recent cleanups" (Brendan
   Jackman)

   Clean up and update page allocator nomenclature, documentation, and
   debug assertions.

   It aligns internal FPI_ flags with the public "nolock" naming
   convention, removes outdated internal implementation details from
   high-level page allocator comments, and eliminates obsolete
   VM_BUG_ON() assertions in allocation paths.

 - "mm/mseal: further cleanups" (Lorenzo Stoakes)

   Refactor and simplify the mseal implementation by clarifying API
   boundaries and removing unnecessary code complexity.

   It replaces generic do_mseal() usage outside the syscall with a
   dedicated mseal_mmap_page_zero() helper for MMAP_PAGE_ZERO,
   eliminates mm_struct parameters to enforce that sealing applies only
   to current->mm, and streamlines overall logic and comments with no
   functional changes intended.

 - "mm/vmscan: fix swappiness=max and clean up per-node proactive
   reclaim" (Ridong Chen)

   Resolve reclaim behavior bugs and clean up function parameters across
   memory reclaim paths

   It fixes swappiness=max in both standard reclaim and MGLRU so
   unswappable anonymous memory no longer falls back to evicting page
   cache, ensures reclaim_store() returns accurate error codes instead
   of collapsing all failures into -EAGAIN, and removes the obsolete
   gfp_mask parameter from __node_reclaim().

 - "mm: mincore: misc cleanups" (Kefeng Wang)

   Clean up and simplifies the mincore code. Most importantly, it
   removes the historical special behavior that always reports VM_PFNMAP
   pages as non-resident.

 - "mm/huge_memory: drop dead split helper variants" (Kiryl Shutsemau)

   Two trivial cleanups in the folio split API

 - "mm/damon: fix uninitialized DAMOS field and kunit exec expectation
   bugs" (SJ Park)

   Resolve minor operational and testing bugs in DAMON identified by
   Sashiko. It initializes the damos->last_applied field to prevent
   occasional efficiency degradation and fixes invalid memory accesses
   in DAMON KUnit tests during test failure handling.

 - "cleanup for stable_page_flags()" (Jinjiang Tu)

   Clean up and refactor stable_page_flags() used by /proc/kpageflags
   without altering functionality.

   It uses BIT_ULL() to prevent shift-overflow warnings on 64-bit flag
   bits, converts folio-specific flag checks to standard folio_test_*()
   helpers, and removes redundant CONFIG_PAGE_IDLE_FLAG handling.

 - "Batch unmap of uffd-wp file folios" (Dev Jain)

   Extend batched folio unmapping support to file folios within
   userfaultfd write-protect (uffd-wp) VMAs by adding batching
   capabilities to pte_install_uffd_wp_if_needed().

   This removes special-case restrictions on uffd-wp VMAs in
   try_to_unmap_one(), significantly simplifying the function's control
   flow and complexity.

 - "mm/early_ioremap: clarify and clean up early_ioremap_reset()"
   (Sang-Heon Jeon)

   Clarify and clean up the architecture-specific usage of
   __late_set_fixmap() and __late_clear_fixmap() after
   early_ioremap_reset()

   It adds explicit documentation regarding when early_ioremap_reset()
   must be called and removes redundant macro definitions and reset
   calls in the RISC-V and ARM64 architectures.

 - "mm: fix reclaim storms in defrag_mode" (Johannes Weiner)

   Address severe performance regressions, swap storms, and spurious
   OOMs caused by vm.defrag_mode=1 under high memory pressure in Meta
   production

   It updates the page allocator slowpath so non-movable allocation
   requests actively trigger direct reclaim and direct compaction at
   pageblock_order scale, allowing them to claim whole pageblocks rather
   than spinning unproductively.

 - "zram: lockmap tweaks" (Sebastian Siewior)

   Optimize and fix lockdep tracking for zram devices by consolidating
   per-entry lockmaps and isolate lock classes across multiple instances

   This reduces memory overhead by replacing per-entry lockdep_map
   instances with a single map per struct zram, and assigns a dynamic
   lock_class_key to each instance to prevent false deadlock reports
   when different zram devices are backed by distinct filesystems.

* tag 'mm-stable-2026-08-18-18-39' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (501 commits)
  selftests/mm: thuge-gen: fix test_shmget() for PAGE_SIZE check
  selftests/mm: unpoison pages in memory-failure teardown
  mm/shmem: downgrade final i_blocks check in shmem_evict_inode() to pr_warn()
  mm/khugepaged: replace mutex_lock/mutex_unlock usage with guard macro
  mm/zsmalloc: fix release order of locks in zs_page_migrate()
  Documentation: zram: remove sections numbering
  ksm: stop iterating VMAs when ksm_test_exit returns true
  mm: fold userfaultfd_rwp() to false without CONFIG_ARCH_HAS_PTE_PROTNONE
  mm/migrate: report RCU-tasks quiescent states in migrate_pages_batch()
  zram: use a custom key for each zram object
  zram: move lockmap to be per-zram instead per table
  selftests/mm: fix gup_longterm EINVAL error message
  mm: page_alloc: fix non-movable reclaim storm in defrag_mode
  mm: page_alloc: move capture_control to the page allocator
  mm: compaction: support non-movable compaction for pageblock requests
  mm: page_alloc: __GFP_FS lockdep annotation for direct compaction
  hugetlb: evaluate subpool free state while locked
  mm/damon: remove trailing semicolons after function definitions
  mm/damon/ops-common: prevent migration fallback to non-target nodes
  mm/damon: update outdated comment about DAMOS filter handling
  ...
2026-08-20 18:17:08 -07:00
Linus Torvalds
7f063b2f17 Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost
Pull vhost,vdpa,virtio updates from Michael Tsirkin:

 - transport v3 support in virtio-mmio

 - suspend support in vduse

 - fixes, cleanups all over the place

* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (54 commits)
  vduse: Add suspend
  vduse: do not take rwsem at reset work flush
  vduse: add F_QUEUE_READY feature
  vduse: add VDUSE_SET_FEATURES ioctl
  vduse: add VDUSE_GET_FEATURES ioctl
  vduse: store control device pointer
  tools/virtio: Fix control typo in trace agent comment
  tools/virtio: Fix userspace typo in vringh test comment
  vhost: reject zero-size IOTLB INVALIDATE
  vdpa: Remove redundant dev_err()
  virtio_ring: fix infinite loop in virtnet_poll_cleantx when device is broken
  vdpa/mlx5: roll back MR update after VQ setup failure
  MAINTAINERS: remove Gabriel from LiteX and fw-cfg drivers
  virtio_mem: fix typo in comment
  vdpa/solidrun: fix typos in snet_ctrl comments
  virtio: fix article before virtio in dma-buf comment
  vhost: fix inaccurate kdoc in iotlb helpers
  virtio: rtc: time out alarm requests
  vdpa/mlx5: fix wrong MLX5_ADDR_OF struct type in alloc_inout()
  vdpa: octeon_ep: add missing MODULE_DEVICE_TABLE()
  ...
2026-08-20 17:07:50 -07:00
Linus Torvalds
a625b2a387 Merge tag 'vfio-v7.3-rc1' of https://github.com/awilliam/linux-vfio
Pull VFIO updates from Alex Williamson:

 - Add nv_falcon vfio selftest driver.

   The Falcon is a general-purpose microcontroller embedded within
   NVIDIA GPUs, presenting a relatively simple DMA programming
   interface.

   This adds another selftest target for vfio-pci with real DMA
   transfers (Rubin Du, Alex Williamson)

 - Add allocation assertion helpers to vfio selftests and use them to
   avoid variable length arrays and the compiler errors they generate
   (Alex Mastro)

 - Fix use-after-free hazard where an init path error in MSI support
   leaves a stray pointer that can later be reused or double-freed
   (Xiang Mei)

 - Fix previous refactor of PCI BAR mappings to honor non_mappable_bars
   flag, which otherwise generates a warning when trying to pci_iomap()
   a 256TiB BAR on ISM devices on s390 (Farhan Ali)

 - Add igb vfio selftest driver.

   Like nv_falcon, this provides another target for DMA testing with
   vfio selftests, but importantly this driver supports both physical
   82576 NICs and the emulation model in QEMU.

   This therefore enables a vfio selftest vector with no physical
   hardware requirements (Josh Hilke, Alex Williamson)

 - Mark selftest fixture objects __maybe_unused to accommodate builds
   with clang -Wunused-but-set-global (David Matlack)

 - Add error recovery for vfio-pci devices on s390x.

   This expands devices which expose the existing error eventfd and
   introduces a device feature for reporting firmware defined error
   state information to the user, allowing recovery through hypervisor
   channels (Farhan Ali)

* tag 'vfio-v7.3-rc1' of https://github.com/awilliam/linux-vfio:
  vfio/pci: Remove the pcie check for VFIO_PCI_ERR_IRQ_INDEX
  vfio-pci/zdev: Add a device feature for error information
  s390/pci: Store PCI error information for passthrough devices
  PCI/MSI: Enable memory decoding before restoring MSI-X messages
  PCI: Fail FLR when config space is inaccessible
  PCI: Avoid saving config space state if inaccessible
  PCI: Allow per function PCI slots to fix slot reset on s390
  PCI: Introduce PCI_SLOT_PLACEHOLDER constant for slot_nr placeholder value
  selftests: harness: Mark test fixture objects __maybe_unused
  vfio: selftests: Retry on EAGAIN during device reset
  vfio: selftests: igb: Add driver for Intel 82576 device
  vfio: selftests: Add helpers to re-enable interrupts
  vfio/pci: Avoid mapping BARs for devices with non-mappable BARs
  vfio/pci: clear vdev->msi_perm after freeing it on init failure
  vfio: selftests: Avoid VLAs
  vfio: selftests: Add allocation assert helpers
  vfio: selftests: Add NVIDIA Falcon driver for DMA testing
  vfio: selftests: Allow drivers without send_msi() support
  vfio: selftests: Add generic PCI command register helpers
  vfio: selftests: Add memcpy chunking to vfio_pci_driver_memcpy()
2026-08-20 16:57:59 -07:00
Linus Torvalds
55ab7e1422 Merge tag 'for-7.3/block-20260819' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull block updates from Jens Axboe:

 - NVMe updates via Keith:
     - Enable Clang context analysis for the nvme host driver, adding
       context annotations across core, fabrics, rdma, tcp and pci
     - nvmet reservation state exposed through a new namespace-level
       debugfs directory, plus ABI documentation for the host sysfs and
       target configfs interfaces
     - nvme-tcp host memory disclosure fixes on the read path: reject a
       read that transferred too few bytes, don't accept C2HData based
       on blk_rq_payload_bytes() alone, and fix the R2T case for a read
       command
     - Parallelize nvme-rdma I/O queue allocation and startup (Surabhi)
     - Apple nvme fixes and quirks: page aligned admin queue buffers,
       destroy the admin queue on removal, and various DMA/NVMMU
       correctness fixes
     - A large pile of nvmet and host fixes for out-of-bounds reads,
       refcount/resource leaks, and NULL derefs across auth, zns,
       passthru, pci-epf, rdma and configfs
     - Various other fixes and cleanups

 - MD updates via Yu Kuai:
     - llbitmap reshape support, the large series wiring exact bitmap
       mapping and reshape lifecycle through raid5 and raid10, growing
       the page cache in place, and remapping checkpointed bits as
       reshape progresses
     - raid5 fixes for lockless max_nr_stripes and recovery_offset
       accesses, a reshape deadlock with more failed devices than max
       degraded, and bitmap batch counter consistency
     - Atomic write handling for raid1/raid10, and removal of the
       REQ_NOWAIT support from raid1/10/456
     - raid5-ppl use-after-free fix in ppl_do_flush()
     - A batch of smaller fixes across md core and the bitmap code

 - s390/dasd ESE full-track write support and the surrounding
   infrastructure, plus enabling CONTEXT_ANALYSIS for s390/block

 - RWF_DONTCACHE support for block devices, built on new task-context
   bio completion infrastructure, and wiring it up for the iomap and
   buffer dropbehind writeback paths

 - Async io_uring zone reset all, plus zone management command cleanups
   allowing REQ_NOWAIT and tightening conventional zone rejection

 - Block integrity refactoring: lift BIP_CHECK_FLAGS to the shared
   header, handle nogenerate/noverify properly in fs-integrity, and drop
   the blk-integrity.h include from bdev.c

 - Split out a new blk_plug.h header

 - ublk improvements: add UBLK_F_IO_DESC_SIZE, split request validation
   from io_desc init, reject non-power-of-2 zone sizes in SET_PARAMS,
   and a series of hardening fixes around map/unmap and auto buf reg

 - null_blk cleanups and configfs serialization fixes

 - nbd queue freeze removal on the setup paths, and a new
   pre_defined_connections module parameter for pre-created devices

 - blk-cgroup fixes for the race between policy activation and blkg
   destruction, and accounting per-cpu stats over possible CPUs across
   blk-stat, iolatency, iocost and kyber

 - Various dio fixes: leak on metadata mapping error, validate user
   space vectors during extraction, and set dma_alignment from the
   backing file for loop and zloop direct I/O

 - bio cleanups

 - Various other fixes and cleanups all over

* tag 'for-7.3/block-20260819' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (241 commits)
  nbd: add pre_defined_connections module parameter for pre-created devices
  nbd: remove queue freeze for newly created nbd from netlink path
  nbd: factor out a nbd_genl_foreach_sock
  nbd: skip queue freeze when setting size at device startup
  nbd: remove queue freeze in nbd_add_socket
  nbd: clear queue limits on disconnect
  nbd: disallow NBD_SET_SOCK on an active device
  nbd: simplify find_fallback() by removing redundant logic
  blk-mq: add missing call to srcu_barrier() in blk_mq_free_tag_set()
  block: mtip32xx: synchronize ioctls with device removal
  ublk: avoid teardown retry loop on xarray allocation failure
  null_blk: fix UBSAN shift-out-of-bounds when zone_size is 0 or overflows
  block: don't include blk-integrity.h in bdev.c
  xfs: avoid double deferrals for RWF_DONTCACHE writes
  loop: Fix recently introduced lock inversion
  block: set QUEUE_FLAG_DYING unconditionally in blk_mark_disk_dead()
  swim3: Add missing MODULE_DESCRIPTION
  selftests: ublk: add SET_PARAMS validation test
  selftests: ublk: add helper for SET_PARAMS
  ublk: reject non-power-of-2 zone sizes in SET_PARAMS
  ...
2026-08-20 13:55:16 -07:00
Linus Torvalds
f5437ff729 Merge tag 'for-7.3/io_uring-20260819' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux
Pull io_uring update from Jens Axboe:
 "On top of the usual cleanups and fixes, the bigger items in here are:

   - zcrx work, most of it centered around adding dynamic area
     provisioning, plus a bunch of prep and cleanups leading up to it:
     scale refilling with large pages, coalesce same-niov RQEs on
     refill, separate the RQ head/tail cache lines and cache the RQ
     tail, and rework the area creation locking.

   - Fix the futex inflight accounting so that only private futex waits
     are marked inflight, and don't mark wake requests as inflight at
     all.

   - Drop the custom iov copy in the buffer select prep and msg header
     copy paths, using the generic helpers instead.

   - Fix a folio size overflow in io_vec_fill_bvec(), and account the
     pages a compound region really uses in the memmap path.

   - Fix an iovec leak in uring_cmd when the async cmd isn't recycled,
     skip the blocking task work for io_uring_cmd_issue_blocking(), and
     don't skip completion for a synchronous multishot cmd

   - Defer eventfd signaling when queued from a wakeup handler

   - Fix io-wq worker accounting when canceling creation callbacks

   - Annotate remote tasks for kcoverage"

* tag 'for-7.3/io_uring-20260819' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (30 commits)
  io_uring: Add missing include for ITER_SOURCE and ITER_DEST
  io_uring/uring_cmd: don't skip completion for a synchronous multishot cmd
  io_uring/memmap: account the pages a compound region really uses
  io_uring/zcrx: add dynamic area provisioning
  io_uring/zcrx: lock area creation with pp_lock
  io_uring/zcrx: keep array of areas
  io_uring/zcrx: move freelist lock to struct zcrx
  io_uring/zcrx: unmap under netdev lock
  io_uring/zcrx: split dmabuf unmap and release
  io_uring/zcrx: don't pass ifq_reg to area creation
  io_uring/zcrx: add helper for deriving area token
  io_uring/zcrx: don't reload skb_shinfo
  io_urint/zcrx: narrow var scope in io_zcrx_recv_skb()
  io_uring/zcrx: constify area_reg on import
  io_uring/zcrx: coalesce same-niov RQEs on refill
  io_uring/zcrx: cache RQ tail
  io_uring/zcrx: add RQ iterator
  io_uring/zcrx: move RQ head/tail to separate cache lines
  io_uring/zcrx: scale refilling with large pages
  io_uring/io-wq: fix worker accounting when canceling creation callbacks
  ...
2026-08-20 13:47:56 -07:00
Linus Torvalds
d141ec2825 Merge tag 'nfsd-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux
Pull nfsd updates from Chuck Lever:

 - CB_NOTIFY support for NFSD's NFSv4.1 directory delegations

   The server used to recall a delegation as soon as the directory
   changed. NFSD now watches delegated directories through fsnotify and
   reports adds, removes, renames, and directory attribute changes,
   carrying the filehandle and attributes of the affected entry, so
   clients can keep their caches. Some of the NOTIFY4 flags come from
   RFC 8881bis (Jeff Layton)

 - Continued netlink work

   A new server-stats-get operation reports what /proc/net/rpc/nfsd
   publishes, plus NFSv4 callback counts, and SUNRPC now keeps its
   per-procedure call counts per network namespace, so a container sees
   its own numbers. nfsstat reads all of this over netlink, with a
   procfs fallback for older kernels (Jeff Layton)

 - Remove SUNRPC service thread pool mode selection

   Per node is the right choice on any host we run today, so the auto,
   global, and percpu modes have been removed. A single-node host still
   gets one pool. A multi-NUMA host now gets a pool per node.

   sunrpc.pool_mode accepts the old names but no longer selects
   anything.

 - Bug fixes, clean-ups, and small optimizations:
    - async COPY offload rework (Jeff Layton)
    - more use-after-free fixes in the NFSv4 state revocation paths
    - percpu counter contention removed from the reply cache and IO
      accounting
    - a long list of hardening fixes (Chris Mason)

Sincere thanks to all contributors, reviewers, testers, and bug
reporters who participated in the v7.3 NFSD development cycle.

* tag 'nfsd-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/cel/linux: (182 commits)
  nfsd: export NFSv4 callback op stats via netlink
  nfsd: count NFSv4 callback operations per netns
  sunrpc: remove unused svc_version vs_count field
  nfsd: implement server-stats-get netlink handler
  sunrpc: use per-net counts in svc_seq_show()
  sunrpc: add per-netns per-procedure call counts to svc_stat
  NFSD: Document reply_cache_stats ABI
  NFSD: Eliminate percpu counter contention in IO byte accounting
  NFSD: Eliminate percpu counter contention in reply cache statistics
  NFSD: Eliminate percpu counter contention in DRC memory accounting
  NFSD: Fix off-by-one in DRC bucket pruning limit
  NFSD: Relocate NFSv4 "supported attributes" to new header
  NFSD: Relocate nfsd4_set_netaddr()
  NFSD: Relocate nfsd_user_namespace()
  NFSD: Move struct readdir_cd
  NFSD: Move the export.h include from nfsd.h to auth.c
  NFSD: Remove '#include "nfsd.h"' from fs/nfsd/cache.h
  NFSD: include "netns.h"
  NFSD: Explicitly include "stats.h"
  NFSD: Make "stats.h" self-contained
  ...
2026-08-20 12:39:56 -07:00
Linus Torvalds
91ec203513 Merge tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next
Pull networking updates from Jakub Kicinski:
 "One of the 'small improvements all over the place' releases for us.

  It's hard to draw any direct comparisons because summer vacations
  disrupted our patch processing (and presumably - generation) quite a
  bit.

  Quick and dirty count suggests we (Paolo and I) merged a very similar
  number of net (632) and net-next (648) patches. This is not telling
  the full story either because 1/3 to 1/2 of the net-next patches also
  *seem* like AI-driven low priority fixes, cleanups and clarifications.

  We are completely overwhelmed, of course. The glimmer of hope is that
  we secured sufficient LLM budget and access (thank you Meta!) to run
  reviews with multiple frontier models on each patch. This eliminates
  some hallucinations. That said, in terms of review, the LLMs can only
  do so much.

  The sad truth is that our APIs (especially for rare events like PCIe
  errors, timeouts etc) have always been racy, and now LLMs don't let us
  ignore that. I expect our direction for the next release will be to
  tweak the reviews a little bit more, but start shifting focus to
  letting the LLMs take care of the busy work - managing patchwork,
  automating common process complaints, editing commit messages, and
  maybe applying patches which already got "reviewed-by" tags from
  people we trust...

  Core & protocols:

   - A few steps lowering rtnl_lock dependence:
      - per-netns netdev unregistration for select SW drivers (e.g.
        veth, ipvlan, tunnels)
      - rtnl_lock-less FIB rule changes (RTM_NEWRULE and RTM_DELRULE)
      - prepare software drivers and TC qdiscs for rtnl_lock-less GET

   - Support BIG TCP (>64kB TSO) in UDP tunnels (vxlan, geneve)

   - Support buffers larger than PAGE_SIZE in devmem zero-copy API

   - Improve MPTCP handling of extreme memory pressure handling, when
     out-of-order queue had to be pruned

   - Report the per-group user count via RTM_GETMULTICAST

   - Expose the route deletion reason in RTM_DELROUTE

   - Add a SO_RIGHTS_NOTRUNC option to UNIX sockets to enable more
     useful handling of LSM denials when receiving SCM_RIGHTS messages:
     instead of truncating the message at the first blocked fd, keep
     every fd slot and store the LSM errno in the blocked slot

   - IPv6 Segment Routing - support looking up the post-encap SID
     (address) in a different/specified routing table

   - Support PRP RedBox (interlink) creation

   - Support per-nexthop UDP dst port in VXLAN

   - Continue converting getsockopt callbacks in a number of protocols
     to iov_iter

  Ethernet:

   - Merge initial CXL support for AMD/Solarflare NICs (shared branch
     with the CXL tree)

   - New drivers:
      - ADIN1140 10BASE-T1S MACPHY
      - Initial skeleton of Intel iXD and ZTE Dinghai drivers

   - High-speed NICs:
      - AMD/Pensando:
         - support firmware flashing
      - Cisco (enic):
         - SR-IOV V2 admin channel and MBOX protocol
      - Huawei (hns3):
         - support for ethtool pfc_prevention_tout
      - nVidia/Mellanox:
         - support sharing bandwidth control across interfaces
           of the same device
      - Marvell (octeontx2-pf):
         - link RQ page pools to netdev for Netlink stats
      - Google vNIC:
         - XDP metadata support for DQ RDA
      - Microsoft vNIC:
         - support forcing full-page RX buffers

   - Other NICs:
      - Synopsys IP:
         - eic7700: support for eth1
      - Microchip (lan743x):
         - support for RMII interface
      - Wangxun:
         - support for ethtool -G and -C for VFs
         - add Tx timeout and PCIe error handling
      - Intel (igb/igc):
         - RSS key get/set support
         - support for forcing link speed without auto-negotiation

   - Switches:
      - NXP (dpaa2):
         - support bonding/LAG offload
      - Mediatek:
         - mt7530: EN7528 support
         - initial support for MT7628
      - Micrel (ksz8/9):
         - refactoring work to move towards library model
         - PTP support for KSZ8463
      - nVidia/Mellanox:
         - support rtnl-lock-less ethtool callbacks
      - Realtek:
         - rtl8366rb: use generic RTL83xx code
         - support SGMII and HSGMII for RTL8367S

   - PHYs:
      - Airoha:
         - EcoNet EN7528 PHY support
      - DAPU Telecom
         - DAPU Telecom DAP8211R(I) Gigabit PHY support
      - Realtek:
         - support RTL8261C_CG
         - support RTL8261D

  Wireless:

   - nl80211: per-link statistics support for multi-link operation

   - mac80211: AQL/airtime-fairness support for multicast

   - Merge Peripheral Authentication Service (PAS) / TEE support for
     ath12k (shared branch with the firmware/qcom tree)

   - New drivers:
      - mm81x for Morse Micro Long-Range S1G devices
      - nxpwifi for NXP devices (mostly forked off from mwifiex)

   - Driver changes:
      - Broadcom (brcmfmac):
         - DPP support, some Cypress part update
      - MediaTek (mt76):
         - mt7928 support
         - mt7925 NAN support
         - mt7996 AP powersave improvements
      - Qualcomm (ath12k):
         - much kernel infrastructure integration work
         - AHB platform MultiPD support
      - Realtek (rt89):
         - LED support
         - RTL8922DE support
         - dual-BT coex for RTL8922D
      - Intel:
         - new FW version support

  Bluetooth:

   - HCI: add support for Shorter Connection Interval (SCI) feature

   - af_bluetooth: add minimal context analysis annotations

   - Driver changes:
      - Intel:
         - add Bluetooth SAR revision 2 support
         - add vendor_reset PCI sysfs for PLDR
      - Mediatek:
         - add USB IDs for MT7902 and MT7922 devices
      - Realtek:
         - add USB IDs for 8761CU and 8852BE devices
      - NXP:
         - add M.2 Bluetooth device support using pwrseq

  Misc:

   - DPLL support for manual/numerical oscillator control (NCO)
     (implement in zl3073x)

   - MCTP support for MCTP over USB v1.1 (DMTF DSP0283)

   - Power-over-Ethernet: support Realtek PSE controllers

   - Remove the IBM EHEA driver

   - Remove tulip/xircom_cb driver"

* tag 'net-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1433 commits)
  net/mlx5e: do not HW-GRO coalesce small frames
  net: openvswitch: fix nf_connlabels leak in ovs_ct_init
  net: add missing ref_tracker_dir_exit() to alloc_netdev_mqs()
  net: openvswitch: fix flow mask use-after-free on flow deletion
  sctp: stop processing a packet once its association is deleted
  dpll: zl3073x: add PTP clock support
  dpll: zl3073x: add channel ToD, phase step and TIE operations
  dpll: zl3073x: scale poll interval proportionally to timeout
  ptp: vmclock: prevent read-only mappings from becoming writable
  ipv4: reject undersized MTUs in ip_do_fragment()
  bonding: initialize err for empty target lists
  net: dsa: initial support for MT7628 embedded switch
  net: dsa: initial MT7628 tagging driver
  net: phy: mediatek: add phy driver for MT7628 built-in Fast Ethernet PHYs
  dt-bindings: net: dsa: add MT7628 ESW
  net: pse-pd: realtek-pse-mcu: add UART transport
  net: pse-pd: realtek-pse-mcu: add I2C transport
  net: pse-pd: add Realtek PSE MCU core
  dt-bindings: net: pse-pd: add bindings for Realtek PSE MCU
  vsock: use sock_error() to consume sk_err after a failed connect
  ...
2026-08-20 08:16:04 -07:00
Linus Torvalds
5a8cd539ac Merge tag 'bpf-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next
Pull bpf updates from Daniel Borkmann:
 "Major changes:

   - Redesign the verifier error reporting: failures now carry source
     and instruction annotations along with the causal event history
     that led to them, making program rejections far easier to debug and
     repair (Kumar Kartikeya Dwivedi)

   - Add arena argument support to kfuncs and struct_ops through the new
     __arena and __arena__nullable suffixes (Tejun Heo, Puranjay Mohan,
     Kumar Kartikeya Dwivedi, Ihor Solodrai)

   - Signed BPF program loader rework to accommodate both BPF and
     security community needs where the kernel runs the signature
     verification at BPF_PROG_LOAD time before the LSM admission hook
     (Daniel Borkmann)

   - Add a set of ksock kfuncs which let BPF LSM and syscall programs
     create, connect and send on UDP sockets in order to emit telemetry
     data (Mahe Tardy)

   - Unify helper and kfunc call argument verification and classify
     kfunc arguments purely from BTF into a generated bpf_func_proto
     which is computed once at add-call time (Amery Hung)

  Other features and fixes:

   - Enable EXECMEM_ROX_CACHE for BPF allocations on x86 (Mike Rapoport)

   - Add bidirectional VLAN support to bpf_fib_lookup() through the new
     BPF_FIB_LOOKUP_VLAN and BPF_FIB_LOOKUP_VLAN_INPUT flags (Avinash
     Duduskar)

   - Infer zext_dst from static register liveness analysis to fix 32-bit
     zero-extension semantics, and remove the artificial limitations on
     pointer types eligible for spilling (Eduard Zingerman)

   - Inline the numeric open-coded iterator kfuncs so that bpf_for()
     loops no longer pay a kfunc call on every iteration (Puranjay
     Mohan)

   - Add an arena-based bitmap data structure to libarena along with
     serial and parallel selftests (Emil Tsalapatis)

   - Teach resolve_btfids to discover kfuncs from the kernel's BTF ID
     sets and to emit kfunc BTF decl tags, reducing the kernel build's
     dependency on pahole features (Ihor Solodrai)

   - Add BPF_F_ADJ_ROOM_DECAP_* flags to bpf_skb_adjust_room() so that
     tunnel decapsulation can update the GSO and encapsulation state of
     the skb (Nick Hudson)

   - Fix the ring buffer pending_pos walk and the available-data
     accounting on 32-bit position wrap (Israel Téllez García)

   - Add memory usage accounting for arena maps and fix an mmap_lock
     deadlock on arena lock failure (Jiayuan Chen)

   - Add tracing_multi link info support to the kernel UAPI and bpftool,
     and refactor the stack map code to run with preemption disabled
     (Jiri Olsa)

   - Support BPF_F_EGRESS in bpf_redirect_peer() to emit the skb in the
     egress direction of the target's peer device (Jordan Rife)

   - Add a KF_SPINLOCK_SAFE kfunc flag so that providers, in particular
     modules, can declare kfuncs safe to call under bpf_spin_lock
     instead of relying on the verifier's hard-coded allowlist (Kaitao
     Cheng)

   - Introduce global percpu data for BPF programs with libbpf probing
     and bpftool skeleton support, and stop exposing uninitialized
     kernel heap memory when copying per-CPU map values (Leon Hwang)

   - Add s390 JIT support for load-acquire and store-release
     instructions (Maxim Khmelevskii)

   - Fix a CFI mismatch in the task work callback and an arm64 KASAN
     false positive after bpf_throw() (Mykyta Yatsenko)

   - Reject writes through untrusted BTF pointers and bound the
     rdonly/rdwr_buf_size kfunc arguments (Nicholas Dudar)

   - Invalidate RCU pointers only after the final spin unlock and
     account for preempt and IRQ disabled regions as overlapping RCU
     protection (Ning Ding)

   - Support mixing bpf2bpf calls and tail calls on RV64, add signed
     operations and 32-bit atomics to the RV32 JIT, and add timed
     may_goto support (Pu Lehui, Kuan-Wei Chiu, Feng Jiang)

   - Fix a use-after-free on mm_struct in bpf_find_vma() for foreign
     tasks and an mmap_lock leak in the irq_work path (Sanghyun Park)

   - Populate mmap-able BPF array map memory lazily which makes mmap()
     O(1) instead of proportional to the map size (Song Liu)

   - Introduce a jit_required flag and reject programs with inlined
     helpers when no JIT is available, where the interpreter would
     otherwise jump into an invalid address (Tiezhu Yang)

   - Fix the x86 JIT per-CPU address resolution into an extended
     register where the REX prefix dropped the high destination register
     bit (Vineet Gupta)

   - Reject MEM_ALLOC BTF accesses past object bounds, arena frees below
     the arena base, and mixed arena and ordinary atomic paths (Yiyang
     Chen)

   - Fix the trampoline handling of 128-bit arguments and of return
     values larger than 8 bytes (Yonghong Song)

   - Ensure that any fault prone load is rewritten with exception table
     handling, and fix the arena load-acquire and atomic fetch handling
     in the x86, arm64, riscv and s390 JITs (Daniel Borkmann)

   - Many more fixes and cleanups across the verifier, arena,
     trampolines, sockmap, cgroup, ring buffer, x86/arm64/riscv/s390
     JITs, libbpf, bpftool, resolve_btfids and selftests"

* tag 'bpf-next-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next: (373 commits)
  selftests/bpf: Add tests for a store on a fault prone qdisc pointer
  selftests/bpf: Add tests for fault prone loads out of RCU pointers
  selftests/bpf: Add tests for pointer type merge at a shared load
  selftests/bpf: Remove duplicate copies of the arena spinlock qnodes
  selftests/bpf: Retry stat generation in cgroup_iter_memcg
  selftests/bpf: Test pseudo-function policy diagnostics
  bpf: Distinguish function references in policy diagnostics
  bpf: Preserve source attribution without source text
  selftests/bpf: Test kfunc argument diagnostics
  bpf: Correct kfunc argument diagnostics
  bpf: Use canonical stack argument names in diagnostics
  bpf: Preserve R0 lineage across helper calls
  selftests/bpf: Exercise negative optlen in cgroup getsockopt hook
  bpf: Reject negative optlen in cgroup getsockopt hook
  selftests/bpf: tc_tunnel - validate decap GSO and encapsulation state
  bpf: Clear decap state on skb_adjust_room shrink path
  bpf: Allow new DECAP flags and add guard rails
  bpf: Add BPF_F_ADJ_ROOM_DECAP_* flags for tunnel decapsulation
  bpf: Refactor masks for ADJ_ROOM flags and encap validation
  bpf: Name the enum for BPF_FUNC_skb_adjust_room flags
  ...
2026-08-20 07:36:20 -07:00
Dave Airlie
c44e278ce0 BackMerge tag 'v7.2' into drm-next
Linux 7.2

There was a lot of conflicts this round between fixes and next,
and I'd like to get the merge resolutions that we have in drm-tip.

Signed-off-by: Dave Airlie <airlied@redhat.com>
2026-08-20 10:58:44 +10:00
Linus Torvalds
a4ff2be345 Merge tag 'v7.3-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6
Pull crypto update from Herbert Xu:
 "API:
   - Add af_alg_restrict sysctl and white list
   - Fix potential suspend/resume races in hwrng

  Algorithms:
   - Optimize vli additive operations using compiler builtins in ecc

  Drivers:
   - Remove unsafe/deprecated algorithms from qce
   - Mark qce as BROKEN
   - Add runtime PM and interconnect bandwidth scaling support to qce
   - Remove crypto_rng from qcom, sun8i and caam
   - Fix SG list issues in iaa
   - Fix SEV init path bugs in ccp"

* tag 'v7.3-p1' of git://git.kernel.org/pub/scm/linux/kernel/git/herbert/crypto-2.6: (122 commits)
  crypto: lskcipher - propagate errors from unaligned crypt
  crypto: keembay - use crypto_memneq() to compare CCM AEAD tags
  crypto: keembay - use crypto_memneq() to compare GCM AEAD tags
  crypto: sa2ul - use crypto_memneq() to compare AEAD tag
  hwrng: drivers - use named initializers for acpi_device_id
  crypto: qce - fix CCM AAD buffer underallocation
  crypto: iaa - unmap dst before software fallback on decompress
  crypto: iaa - use bounce buffer for multi-sg decompress input
  crypto: iaa - avoid counting fallback decompression bytes
  crypto: iaa - fall back to software for multi-entry scatterlists
  hwrng: core - Stop/start hwrng_fillfn() kthread before/after suspend-resume
  crypto: hisilicon/sec2 - fix CCM algorithm long packet failure
  crypto: eip93 - use struct_size() and flexible array for ring allocation
  crypto: krb5 - use kfree_sensitive() for derived key buffers
  crypto: af_alg - Stop after finding name in allowlist
  crypto: af_alg - Replace 'bool privileged' with flags
  crypto: af_alg - Make cbc(paes) privileged-only
  hwrng: imx-rngc - Disable clock on registration failure
  crypto: qat - remove dead ADF_HEX code
  crypto: qce - simplify qce_handle_request
  ...
2026-08-19 17:25:42 -07:00
Linus Torvalds
98f21c54f9 Merge tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl
Pull fwctl updates from Jason Gunthorpe:

 - Support more commands in bnxt, this completes what they originally
   wanted to do

 - Rust bindings for fwctl. The Nova GPU is expected to use them next
   cycle

* tag 'for-linus-fwctl' of git://git.kernel.org/pub/scm/linux/kernel/git/fwctl/fwctl:
  rust: introduce abstractions for fwctl
  fwctl/bnxt: Add DMA buffer support for HWRM commands
  bnxt_en: Update bnxt firmware spec
2026-08-19 12:51:36 -07:00
Linus Torvalds
85e0d1de36 Merge tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd
Pull iommufd updates from Jason Gunthorpe:
 "One small feature this cycle, the noiommu mode is useful in
  single-purpose VMs running something like DPDK. It avoids the double
  translation overhead and it seems to be commonly used with some hacks.

  Summary:

   - Formal API for "no iommu" mode in VFIO. iommufd now works in this
     environment and provides page pinning and phyiscal address services
     to userspace. This avoids nasty fragile tricks with mprotect and
     pgmap

   - Fix sykzaller crash racing change_process with map_pages

   - Various skyzkaller/AI fixes for the selftests"

* tag 'for-linus-iommufd' of git://git.kernel.org/pub/scm/linux/kernel/git/jgg/iommufd:
  iommufd: Fix UAF in selftest IOPF reporting
  iommu/iommufd: Fix NULL pointer deref in iommufd_ioas_change_process when racing with iopt_map_file_pages
  Documentation: Update VFIO NOIOMMU mode
  vfio: Enable cdev noiommu mode under iommufd
  iommufd: Add an ioctl to query PA from IOVA for noiommu mode
  iommufd: Allow binding to a noiommu device
  iommufd: Move igroup allocation to a function
  iommufd: Support a HWPT without an iommu driver for noiommu
  iommufd: Simplify iommufd_device_remove_vdev()
  iommufd: Fix grammar and spelling in comments
  iommu: Fix dev_iommu memory leak when device_add fails in iommu_mock_device_add
  iommufd/selftest: Fix dmabuf leak in iommufd_test_dmabuf_get()
  iommufd/selftest: Avoid selftest dirty bitmap size wrap
2026-08-19 12:42:58 -07:00
Linus Torvalds
4994ef0fe0 Merge tag 'iommu-updates-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux
Pull iommu updates from Joerg Roedel:
 "ARM SMMUv2:
   - Device-tree binding updates for Qualcomm Eliza, Maili, Shikra and
     IPQ9650 SoCs
   - Add support for Qualcomm SM8450
   - Numerous fixes for lifetime and ordering issues found by Sashiko in
     the Qualcomm driver

  ARM SMMUv3:
   - Fix interrupt type in device-tree binding example for NVIDIA CMDQV
   - Numerous fixes for issues identified by Sashiko in the NVIDIA CMDQV
     driver
   - Work around TLB erratum T264-SMMU-3 on Tegra264 by repeating the
     invalidation sequence
   - Add support for HAFT (hardware access flag in table entries) when
     using SVA
   - Probe for 52-bit addressing with a page size smaller than 64k
     ('DS') but don't do anything with it for now
   - Minor driver improvements (remove sort_nonatomic(), use
     readl_relaxed_poll_timeout_atomic(), fix IOPF teardown ordering)

  Intel VT-d:
   - Consolidation of complex enablement logic into a clean,
     priority-based state machine
   - Support for the DMA_REMAP_OPT_OUT flag from the VT-d v5.2
     specification
   - An update to cache_tag_flush_devtlb_psi() to use full-range
     constants instead of modifying shared variables for
     CACHE_TAG_NESTING_DEVTLB
   - A fix for the UCTP context-table slot when copying root entries
   - Fixes for several pre-existing issues reported by Sashiko
   - General code cleanup and refinement

  AMD IOMMU:
   - Add SNP page-mode-0 support, enabling passthrough, v2 DMA page
     tables and host SVA on supporting systems
   - Fix invalid PPR handling, COMPLETE_PPR responses and guest-mode
     reporting
   - Improve Southbridge IOAPIC validation and remove the dependency on
     hard-coded device IDs
   - Fix PCI-device lifetime, debugfs and diagnostic issues

  IOMMU core and IOMMUFD:
   - Restore serialization of the shared MSI-page list
   - Fix SVA-handle publication and several IOMMUFD reference and error
     path leaks
   - Return the expected zero result for invalid generic page-table
     translations
   - Allocate per-CPU IOVA magazines lazily to reduce memory use on
     large systems

  PCI ATS:
   - Make VF support checks account for the associated PF and validate
     that VF and PF Smallest Translation Unit settings agree

  Platform drivers:
   - Fix Qualcomm runtime-PM, probe unwind, fault reporting and page
     table initialization races
   - Rework Rockchip state handling and fix clock, probe and stale-fault
     handling
   - Fix smaller issues in the MSM and MediaTek drivers

  Device-tree bindings:
   - Add new Qualcomm SMMU compatibles, convert the OMAP IOMMU binding
     to YAML, and fix the Tegra264 CMDQV interrupt example

  Various smaller cleanups, documentation fixes and a Rust IOMMU
  safety/readability improvement"

* tag 'iommu-updates-v7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/iommu/linux: (93 commits)
  iommu/amd: Add SNP page mode 0 support
  iommu/amd: Fix GN bit setting in COMPLETE_PPR_REQUEST command
  iommu/amd: Rate limit INVALID_PPR_REQUEST error logging
  iommu/amd: Fix missing CMD_COMPLETE_PPR response for invalid PPR requests
  iommu/amd: Introduce PPR_TAG_LAST_PAGE() macro
  iommu/amd: Fix incorrect device ID in invalid PASID error message
  iommu/vt-d: Flush context cache with correct SID when tearing down aliases
  iommu/vt-d: Tear down scalable-mode context on probe failure
  iommu/vt-d: Fix iopf_refcount leak on RID domain replacement
  iommu/vt-d: Clear Present bit before tearing down copied context entry
  iommu/vt-d: Fix copied_tables bitmap leak on error in copy_translation_tables
  iommu/vt-d: Cache max domain ID to avoid redundant calculation
  iommu/vt-d: Support the new DMA_REMAP_OPT_OUT flag bit
  iommu/vt-d: Remove dmar_disabled
  iommu/vt-d: Remove the 'force_on' variable
  iommu/vt-d: Call dmar_can_force_on() for tboot opt-in
  iommu/vt-d: Use dmar_can_force_on() for platform opt-in
  iommu/vt-d: Consolidate dmar policy management and force_on logic
  iommu/vt-d: Remove dead code when CONFIG_INTEL_IOMMU is not set
  iommu/vt-d: Force requesting ACS when tboot is enabled
  ...
2026-08-19 12:38:26 -07:00
Oliver Upton
f181451283 Merge branch 'kvm-arm64/pmu-7.3' into next
* kvm-arm64/pmu-7.3:
  : vPMU updates for 7.3
  :
  :  - Support for slot-based PMU events, relying on new UAPI that makes
  :    selection of a vPMU implementation mandatory (Congkai Tan)
  KVM: arm64: Add KVM_ARM_VCPU_PMU_V3_STRICT vCPU feature
  KVM: arm64: Ignore writes to PMCR_EL0.N when using strict UAPI
  KVM: arm64: Advertise STALL_SLOT* in PMCEID1 under strict PMUv3 UAPI
  KVM: arm64: Expose PMMIR_EL1.SLOTS under strict PMUv3 UAPI

Signed-off-by: Oliver Upton <oupton@kernel.org>
2026-08-19 12:27:30 -07:00
Linus Torvalds
f4cdf7ca9a Merge tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media
Pull media updates from Mauro Carvalho Chehab:

 - v4l2-core: added ISP statistics support and per-block validation

 - v4l2-core: Allow unknown HDR10 white point and luminance

 - New camera sensors: Sony IMX678 and IMX471m, Himax HM1092 IR sensor

 - New codec: Milos: VPU v2.0 codec support

 - isp driver: gained support for Dreamchip RPPX1 ISP framework

 - vsp1 driver: gained support for RZ/T2H and RZ/N2H

 - Novalake driver: gained CVS support for new NVL hardware

 - dvb-core: fix feed leak on failed DMX_ADD_PID

 - several driver fixes, cleanups and minor improvements

* tag 'media/v7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-media: (308 commits)
  media: ipu-bridge: check all DMI entries when overriding sensor rotation
  media: v4l2-async: avoid deleting unlinked ASC entry on link error
  media: rzg2l-cru: Align bytesperline to hardware DMA stride requirement
  media: intel/ipu6: fix async notifier cleanup leak on parse error
  media: staging/ipu7: fix async notifier UAF on probe error path
  media: amd: isp4: fix self-deadlock in isp4sd_pwron_and_init() error path
  media: amd: isp4: release partial allocations in isp4if_alloc_fw_gpumem()
  media: rcar-isp: Fix VSPX reference leaks
  media: rcar-isp: Release ISPCORE resources
  media: i2c: imx415: Release runtime PM reference on VBLANK error
  media: i2c: imx415: Return test pattern write errors
  media: renesas: vsp1: Declare index variables in for loop statement
  media: renesas: vsp1: Make reset control optional to support platforms without a reset line
  media: dt-bindings: media: renesas,vsp1: Document RZ/T2H and RZ/N2H SoCs
  media: dt-bindings: media: renesas,fcp: Document RZ/T2H and RZ/N2H SoCs
  media: nxp: imx8-isi: Add additional 32-bit RGB format support
  media: nxp: imx8-isi: Add 16-bit raw Bayer format support
  media: nxp: imx8-isi: Implement per-stream reference counting for multiplexed streams
  media: nxp: imx8-isi: Use BIT_ULL() for 64-bit stream masks
  media: nxp: imx8-isi: Correct color map between V4L2 and ISI
  ...
2026-08-19 10:09:22 -07:00
Linus Torvalds
e5c91aac49 Merge tag 'sound-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound
Pull sound updates from Takashi Iwai:
 "It was a fairly busy development cycle - the changes spread over from
  the core side to leaf drivers, with lots of cleanups and enhancements.
  Here we go, some highlights:

  ALSA core:
   - Extension of ALSA control component list ABI
   - Locking optimization and RCU conversion of ALSA sequencer core
   - A few hardening fixes for UMP and sequencer core
   - Drop __bitwise and __force prefix from UAPI definitions

  ASoC:
   - Automatic DAI format selection code deployment across many drivers
   - Sorting of register default tables to prevent ordering issues in
     many drivers
   - Lots of code cleanups and refactoring
   - Updates in Qualcomm driver stack
   - New platforms: AMD ACP7.B/F, Cirrus Logic CS35L62, Loongson
     2K0300, Meson GX, Qualcomm LPI MI2S, SM8475, WSA855X, Realtek
     RT1321 VA1/2 and RT766/7

  HD-audio:
   - Support for AW88399 HD-audio side codec for Lenovo Legion laptops
   - Support for Hygon and Lisuan HDMI controllers
   - Robustness fixes for wild device binding
   - Lots of quirks/fixups: Realtek and Conexant codecs for ASUS,
     Lenovo, Acer, etc

  USB-audio:
   - Support for Pioneer DJ DJM-S11
   - Scarlett2/FCP private URB notification fixes
   - Extended quirk_flags to 64bit
   - Hardening fixes for 6fire, bcd2000, usx2y
   - Device-specific quirks for Mackie, Valeton, SPACETOUCH

  General:
   - Auto-cleanup for put_device() and firmware loading across multiple
     platforms"

* tag 'sound-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tiwai/sound: (791 commits)
  ALSA: hda: Fix connection list comparison in proc output
  ALSA: docs: fix dead link to Intel HD-audio spec
  ALSA: usb-audio: Add delay quirk for SPACETOUCH USB Audio
  ALSA: hda: Add Lisuan HDMI controller and codec support
  ALSA: hda/realtek: Fix Lenovo Yoga Slim 7 14AKP10 quirk ordering
  ALSA: hda/tas2781: Add hardware stabilization delay during firmware load retries
  ALSA: hda/realtek: Fix mute LED for HP Victus 15-fa1xxx (MB 8C3F)
  ALSA: hda/realtek: Add micmute LED quirk for Acer Aspire A515-57
  ASoC: tas2783-sdw: do not treat read-only Controls as writable
  ASoC: SOF: validate topology volume range before allocation
  ASoC: cs35l56: Use IRQ provided by the SoundWire core
  soundwire: bus_type: Create IRQ mapping before calling driver probe()
  ASoC: cs35l56: Move cs35l56_irq_request() after cs35l56_irq()
  ASoC: cs35l56: Request IRQ in cs35l56_common_probe()
  ALSA: core: Fix use-after-free in snd_card_do_free()
  ALSA: hda/realtek: Drop duplicate quirk for Lenovo 0x17aa:0x38df
  ALSA: usb-audio: Rename the Audient iD14 monitor mix volume control
  ASoC: tas2781: Refactor calibration start kcontrol creation to separate helper
  ASoC: dt-bindings: es8316: Fix supply property constraints
  ALSA: seq: midi: Serialize input teardown with event_input
  ...
2026-08-19 10:04:59 -07:00
Eugenio Pérez
b282418bc3 vduse: Add suspend
Implement suspend operation for vduse devices, so vhost-vdpa will offer
that backend feature and userspace can effectively suspend the device.

This is a must before get virtqueue indexes (base) for live migration,
since the device could modify them after userland gets them.

This patch does not implement resume, so VMM resets the whole device
to recover from a live migration failure.  Resume optimization can be
implemented on top of these patches, as other vDPA devices have done in
the past.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260707123344.244575-3-eperezma@redhat.com>
2026-08-19 06:38:48 -04:00
Eugenio Pérez
4c318d91cc vduse: add F_QUEUE_READY feature
Add the VDUSE_F_QUEUE_READY feature flag. This allows the kernel module
to explicitly signal userspace when a specific virtqueue has been
enabled.

In scenarios like Live Migration of VirtIO net devices, the dataplane
starts after the control virtqueue allowing QEMU to apply configuration
in the destination device.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260707122502.239022-5-eperezma@redhat.com>
2026-08-19 06:38:48 -04:00
Eugenio Pérez
3b441820cb vduse: add VDUSE_SET_FEATURES ioctl
Add an ioctl to allow VDUSE instances to set the VDUSE features
supported by the userland VDUSE instance.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260707122502.239022-4-eperezma@redhat.com>
2026-08-19 06:38:48 -04:00
Eugenio Pérez
a596238c2a vduse: add VDUSE_GET_FEATURES ioctl
Add an ioctl to allow VDUSE instances to query the available features
supported by the kernel module.

Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Message-ID: <20260707122502.239022-3-eperezma@redhat.com>
2026-08-19 06:38:48 -04:00
Albert Esteve
2187be2121 virtio: Add ID for virtio media
Add VIRTIO_ID_MEDIA definition for virtio-media.

Signed-off-by: Albert Esteve <aesteve@redhat.com>
Message-ID: <20260310-virtio-media-id-v1-1-be211bcf682b@redhat.com>
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2026-08-19 06:38:44 -04:00
Greg Kroah-Hartman
258ad62593 Merge tag 'iio-for-7.3a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio into char-misc-next
Jonathan writes:

IIO new device support, features, cleanup for 7.3

Includes a merge of 7.2-rc2 to pick up the changes around
mod_devicetable.h and reduce resulting conflicts around includes.

New device support
------------------

adi,ad3530R
- Add support for the AD3532R and AD3532 16 channel DACs.
adi,ad4080
- Add support for the AD4883 ADC.
adi,ad5686
- Add support for AD5313R, AD5317R, AD5674, AD5687R, AD5689, AD5689R DACs
  over SPI
- Add support for AD5316R, AD5674, AD5697R and AD5696 DACs over I2C
- Significant driver refactoring prior to these additions, partly to reduce
  bus traffic and to add triggered buffer and gain control support. An
  earlier set added support for missing supplies, reset and LDAC GPIO.
adi,adf41513
- New driver to support this PLL frequency synthesizer that runs up to
  26.5 GHz.
- Included infrastructure to handle higher precision attributes with
  extensive tests
adi,ltc2378-20
- New driver supporting LTC2338, LTC2364, LTC2367, LTC2368, LT2369, LTC2370
  LTC2376, LTC2377, LTC2378, LTC2379 and LTC23980 ADCs with both high speed
  capture via appropriate backend and conventional triggered buffer SPI
  capture.
invensense,icm42607
- New driver for this IMU.
mediateck,mt6323
- New driver for this PMIC ADC.
microchip,mcp47a1
- New driver for this I2C 6 bit DAC.
nxp,mcf54415-dac
- New driver for this DAC found in NXP SoCs.
qst,qmc5884l
- New driver for this 3 axis magnetometer. Included dt vendor entry for qst.
qst,qmc6308
- New driver for this 3 axis magnetometer.
sensiron,slf3s
- New driver for this liquid flow sensor. Includes adding IIO_VOLUMEFLOW
  channel type.
st,vl53l1x
- Refactors to improve readability.
ti,ads112c14
- New driver supporting the ADS112C14 and ADS122C14 ADCs. These bring
  some new ABI for input chopping, particular useful for resistive sensors
  like thermocouples or Wheatstone bridges.
- Support CRC8 detection of corruption on the bus.
- Support buffered reads.
ti,tmp117
- (trivial) Add support for the tmp119 temperature sensor.
xilinx,versal-sysmon
- New ADC driver for this block found on various FPGAs including various
  bus interfaces, threshold and oversampling support.

dt binding updates
------------------
new shared bindings
- excitation-channels and excitation-current-nanoamp allow per channel
  specification of currents used for resistive sensor measurement.
- reference-sources property to allow selection of a per channel reference.
rockchip,saradc
- Add RV1106 which is compatible with the RV3588.

Features
--------

buffer-dmaengine
- Allow cyclic buffers, useful for repeating sequence generation with DACs.
devantech,dmard09
- Implement read back of channel scale - previously interface always
  returned an error.
hid,sensors-als
- Enable separate channel scaling for hardware that supports it.
invensense,timestamp library
- Various precision improvements.
invensense,icm42600
- Add support for hwfifo watermark interfaces.
taos,tcs3472
- Support wait time and sampling frequency control.

Cleanups, minor fixes
---------------------

Minor cleanups not mentioned at all in this summary such
as white space fixes or typos.

Affecting various drivers
- Cleanup of conditionals that had no affect.
- Drop some runtime pm local wrappers as now runtime_pm does the
  mark_last_busy part inside the put, these provide no useful code
  deduplication or readability advantages over directly calling the
  runtime_pm functions.
- Return 0 from write_raw() on success.
- Use of dev_err_probe() to simplify code and sometimes provide useful
  info for deferred probe debugging.
- Drop some redundant error prints where the called function already
  provides information on errors.
- Make some read only arrays in functions static.
- Fix up missing handling of regcache_sync() errors.
- Drop some false kernel-doc markings.
- Add missing MODULE_DEVICE_TABLE for some of_match_id tables.
- Use local variables for things like the struct device to shorten and
  improve readability of code.
- Drop some unused structure elements.
- Reorder dds.h macro parameters to be inline with others.
- Header reorders and IWYU. Often part of a more significant series.
- Remove abstractions designed to allow a driver to support multiple device
  types, when they have been around a long time and only the original part
  showed up.
- Initialize spi_device_id arrays using member names following dropping of
  driver data from drivers that didn't actually use it.
- Catch up with i2c_device_id tables added since previous effort to use
  named initializers for all those.
- Use kernel types in a few places instead of standard C ones or bare
  unsigned.

Misc
- Update Xilinx AMS maintainer.
- Update email address for Maxwell Doose.
- Update email address for Siratul Islam.
- Update email address for Tomasz Duszynski and re-add Tomasz to
  various maintainer entries.
Docs
- Encourage use of differential channel naming even when there is no
  flexibility in input to differential pair mapping. Intended to
  provide a strong signal to userspace that a channel is differential.
adi,ad_sigma_delta
- Allow COMPILE_TEST without any users.
adi,ad2s1201
- Refactor trigger handler to avoid mix of guard() and goto.
adi,ad5686
- Avoid potential NULL dereference is user forces a driver bind.
adi,ad5696
- Add a couple of missing entries to the of_match_id table and update
  binding to match.
atmel,ad91_adc
- Use const char * for DT string property allowing a cast to be dropped.
avia,hx711
- Various refactors and cleanup to enable support of additional parts
  (to come)
- Add missing supply and gpio dt-bindings.
bosch,bmc150
- Harden against device reporting too large a FIFO sample count.
- Use FIELD_PREP() / FIELD_GET() to improve readability.
freescale,fxls8962af
- Harden against device reporting too large a FIFO sample count.
hid-sensors-*
- Reorder probe to not expose userspace interfaces until the rest of
  the setup is done to avoid potentially dropping data.
honeywell,abp2030pa
- Drop an unreachable return.
invensens,icm45600
- Harden against bad value of FIFO sample count from device.
- Use i2c_match_data if firmware table sourced match data isn't available.
nxp,mpl1115
- Ensure runtime_pm is balanced on error in probe.
rohm,bm1390
- Make the driver slightly more likely to recover from transient errors.
sensiron,sgp30
- Handle thread creation errors.
st,lsm6dsx
- Update the enable mask when doing sensor fusion to avoid incorrect fifo
  data handling.
st,stm32-dfsdm
- Treat dt flags as booleans.
ti,ads1015
- Switch to devm helpers which simplified code and closed a resource leak.
ti,opt3001
- Split complicated opt3001_get_processed() logic into irq an no irq
  helper functions.
- Use devm to simplify code.
- Use guard() to simplify code.
- Reorder probe so final call exposes userspace interfaces.
- Various other more minor cleanup
taos,tsl2772
- Fix calibscale readback to check right channel type.
taos,tsl2583
- Use sysfs_emit() and sysfs_emit_at() to replace open coded equivalents.

* tag 'iio-for-7.3a' of ssh://gitolite.kernel.org/pub/scm/linux/kernel/git/jic23/iio: (232 commits)
  iio: dac: mcp47a1: add support for new device
  dt-bindings: iio: dac: add support for mcp47a1
  iio: Update email for Maxwell Doose
  iio: imu: st_lsm6dsx: Update enable mask when using sensor fusion
  iio: light: cm32181: return zero after writing calibscale
  iio: flow: add Sensirion SLF3S liquid flow sensor driver
  iio: core: add IIO_VAL_DECIMAL64_FEMTO format type
  dt-bindings: iio: flow: add Sensirion SLF3S liquid flow sensor
  iio: types: add IIO_VOLUMEFLOW channel type
  iio: ABI: Encourage differential voltage ABI usage
  iio: adc: ltc2378: Add support for LTC2338-18
  iio: adc: ltc2378: Enable triggered buffer data capture
  iio: adc: ltc2378: Enable high-speed data capture
  iio: adc: ltc2378: Add support for LTC2378-20 and similar ADCs
  dt-bindings: iio: adc: Add ltc2378
  iio: magnetometer: ak8974: remove conditional return with no effect
  iio: light: tsl2583: remove conditional return with no effect
  iio: adc: rcar-gyroadc: remove rcar_gyroadc_set_power() helper
  iio: light: vcnl4000: remove vcnl4000_set_pm_runtime_state() helper
  iio: light: vcnl4035: remove vcnl4035_set_pm_runtime_state() helper
  ...
2026-08-19 09:45:01 +02:00
Linus Torvalds
3b4128b9f3 Merge tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull timer and timekeeping core updates from Thomas Gleixner:

 - Fix a subtly inconsistency in the timekeeping code, which fails to
   account for the monotonicity adjustment in ntp_error.

   For small changes of the clocksource multiplicator (+/-1) which are
   typically used by the NTP PLL this is hard to observe. But for larger
   adjustments, e.g. caused by a direct frequency setting through
   adjtimex() the one-time uncompensated offset is significant.

   Cure this by adjusting ntp_error with the resulting offset so that
   the discrepancy is smoothed away over time

 - Make tick length calculations correct in NTP.

   The timekeeping core takes the quantisation of the clocksource into
   account when calculating the tick length to compensate for the
   deviation of the nominal NTP_INTERVAL_LENGTH.

   While timekeeping gets this right, NTP is not aware of that, which
   means it operates on the nominal value and not on the actual value
   which is determined by the clock source frequency. The rounding of a
   coarse clocksource like the ACPI PM timer results in a +127 PPM
   deviation.

   Cure this by exposing the deviation to the NTP code so that it can
   operate on the same data as the timekeeping core. This is purely
   kernel internal. User space still sees the nominal tick lenght via
   adjtimex().

 - The accuracy of the NTP adjustments is fairly approximate as the code
   assumes that the invocations are precisely in NTP interval frequency
   ticks and the final adjustment can over and under-run.

   Cure this by adjusting ntp_error by the intended skew on each tick to
   achieve the desired rate.

 - Handle the two competing skews of time offset and time adjustment
   correctly by calculating the conflict portion between the skews and
   adjusting both accordingly.

 - A set of updates and improvements for the selftests

 - The usual small fixes and improvements all over the place

* tag 'timers-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits)
  selftests: timers: nsleep-lat: Check all calls to clock_nanosleep() and clock_gettime()
  selftests: timers: nsleep-lat: Reuse kselftest error numbers
  selftests: timers: nsleep-lat: Explicitly list the tested clocks
  selftests: timers: nsleep-lat: Use NSEC_PER_MSEC define for unreasonable latency
  selftests: timers: nanosleep: Report each test separately
  selftests: timers: nanosleep: Explicitly handle timer_delete() failure
  selftests: timers: nanosleep: Move all single clock tests out of the loop in main()
  selftests: timers: nanosleep: Reuse kselftest error numbers
  selftests: timers: nanosleep: Explicitly list the tested clocks
  selftests: timers: nanosleep: Drop output alignment
  selftests: timers: Use clock_name() and constants from clock-helpers.h
  selftests: Add clock-helpers.h
  timer_list: Use ktime_t over nanoseconds
  timer_list: Use standard 'long long' format placeholders
  hrtimer: Add a lockdep assertion to hrtimer_update_base()
  timekeeping: Use u32 for clock_was_set_seq
  timekeeping: Rename clockid_aux_valid() to clockid_is_aux_clock()
  hrtimer: Account nr_retries on recovered interrupt retries
  timers/itimer: Zero-init old itimerval before copy to userspace
  nohz: Replace dead select with choice default
  ...
2026-08-18 16:23:56 -07:00
Linus Torvalds
1200d84f4c Merge tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux
Pull powerpc updates from Madhavan Srinivasan:

 - Enable Rust for ppc64le

 - ppc4xx gpio driver updates

 - Add power12 base enablement support

 - Validate arch_compat against host compatibility mode

 - Simplify bootx_scan_dt_build_struct() in powermac platform

 - Implement get_direction() in cpm2

 - Use cpu_relax() in ps3_create_spu()

 - Add NULL guard for cause_ipi in smp_muxed_ipi_message_pass

 - Fixes to handle pseries watchdogs in kdump path

 - Fix missing r2 clobber in PCREL inline assembly

 - Set GPIO chip parent on ppc44x

 - KVM: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl

 - KVM: Use generic xfer to guest work function

 - Enable to run posix cpu timers in task context

 - Misc fixes and cleanups

Thanks to Aditya Gupta, Alice Ryhl, Amit Machhiwal, Andrew Morton,
Anushree Mathur, Athira Rajeev, Bartosz Golaszewski, Cédric Le Goater,
Christian König, Christophe Leroy (CS GROUP), Gary Guo, Gaurav Batra,
Gautam Menghani, Gou Hao, Hari Bathini, Harsh Prateek Bora, jiazhenyuan,
Jinjie Ruan, Link Mauve, Linus Walleij, Mahesh Kumar G Mahesh
Salgaonkar, Michael Walle, Michal Suchánek, Mukesh Kumar Chaurasiya
(IBM), Nicholas Piggin, Nikhil Kumar Singh, Praveen K Pandey, Ritesh
Harjani (IBM), Rosen Penev, Saket Kumar Bhaskar, Shrikanth Hegde,
Sourabh Jain, Thorsten Blum, Vaibhav Jain, Venkat Rao Bagalkote, Vishal
Chourasia, Wentao Guan, and Yanfei Xu.

* tag 'powerpc-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/powerpc/linux: (62 commits)
  powerpc/pseries/iommu: switch to Default DMA window during kdump
  powerpc/configs: enable CONFIG_RAS to fix EDAC support
  KVM: PPC: Document KVM_PPC_GET_COMPAT_CAPS ioctl
  KVM: PPC: Book3S HV: Add support for compat CPU capabilities for KVM on PowerNV
  KVM: PPC: Book3S HV: Implement compat CPU capability retrieval for KVM on PowerVM
  KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl
  gpio: ppc44x: use dev_name() for chip label
  gpio: ppc44x: fix undefined behavior in GPIO_MASK2 macro
  gpio: ppc44x: drop PPC-specific IO helpers
  gpio: ppc44x: Convert GPIO to generic MMIO
  gpio: ppc44x: Use platform resource helper for GPIO MMIO
  gpio: ppc44x: Use module platform driver helper for GPIO
  gpio: ppc44x: update all 4xx to 44x
  gpio: move ppc4xx gpio driver from arch/powerpc to drivers/gpio
  KVM: PPC: Use min() in kvm_vm_ioctl_check_extension()
  KVM: PPC: booke: Use min() in watchdog_next_timeout()
  powerpc/perf: Add power12 Base Performance Monitoring support
  powerpc: Add Power12 architected mode
  powerpc: Add Power12 raw mode
  powerpc/pseries: Limit PVR list to 16 entries for CAS negotiation
  ...
2026-08-18 12:08:13 -07:00
Linus Torvalds
85cdaca697 Merge tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux
Pull arm64 updates from Will Deacon:
 "There's a reasonable amount of stuff here, including a bunch of
  updates to the perf PMU drivers and some MPAM updates to expose the
  memory bandwidth counters via resctrl.

  On the architecture side, some highlights include support for BBML3
  and steps towards support for an architectural NMI solution, all
  wrapped up in a web of fixes for latent issues identified by Sashiko.

  ACPI:

   - Combine reads of AMU counters into a single FFH feedback counter op

  Confidential computing:

   - Fix smp_processor_id() in preemptible context when retrieving an
     attestation token inside a realm

   - Convert pKVM over to a "CC platform"

   - Clean-up our SWIOTLB configuration in preparation for reworking the
     handling of encrypted/decryped DMA buffers in the dma-mapping tree

  CPU errata handling:

   - Work around broken device memory ordering on NVIDIA Olympus cores

   - Fix broken 'nospectre_bhb' command-line option

   - Select the idle loop backend instruction on the command-line

  CPU features:

   - Replace our BBML2-noabort feature with the new architectural BBML3
     feature

   - Disable in-kernel BTI for recent versions of Clang due to issues
     with livepatch that are still being investigated

   - Clean-up documentation describing which ID register fields are
     exposed to userspace

  Interrupts:

   - Preliminary work towards supporting FEAT_NMI, which cleans up our
     IRQ entry code and fixes some latent issues with pseudo-NMI

   - Support for an SDEI backend to trigger an NMI backtrace

  Memory management:

   - Treat all devices as coherent when CLIDR_EL1.LoC == 0

   - Fix no-map handling of sub-page-sized regions

   - Second attempt at unmapping the linear aliases of the kernel data
     and bss sections

   - Fix EFI runtime calls when software-PAN is enabled

  Miscellaneous:

   - Add Mark Rutland as a reviewer!

   - Tidy-up our futex cmpxchg logic when using the new LSUI
     instructions

   - Drop the requirement on DYNAMIC_FTRACE_WITH_CALL_OPS when
     selecting HAVE_DYNAMIC_FTRACE_WITH_DIRECT_CALLS

   - Fix a false-positive KCSCAN splat in the delay loop

   - Use a portable typedef for 128-bit scalar types in our UAPI headers

   - Non-critical fixes for Sashiko reports all over

  MPAM:

   - Hook MPAM memory bandwidth counters into resctrl's counter
     assignment interface

   - Fix a quirk in the MPAM bandwidth counting on Nvidia T241 so that
     it also applies to 63 bit counters

  Perf:

   - Workarounds for hardware issues in the CMN-S3 PMU (Graviton 5) and
     CPU PMU (NVIDIA Olympus again!)

   - Add support for the DDR PMU on Marvell CN20K SoCs

   - Add support for Picoheart implementations of the DCW PCIe PMU

   - Add support for Channel/Rank/Bank filtering in the CXL PMU driver

   - Add support for 64-bit counters in the CSPMU device

   - Add support for revision 2 of the CMN S3 PMU

  Ptrace:

   - Fix a decade-old bug in our handling of seccomp and tracing on
     syscall entry

   - Fix regset handling for inactive SVE and SSVE registers

  Selftests

   - Add some tests for the decade-old bug that we just tried to fix in
     our syscall entry path

   - Fix SVE test crash on SME-only CPUs"

* tag 'arm64-upstream' of git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux: (95 commits)
  arm64/efi: Avoid voluntary preemption with efi_mm installed
  arm64: bti: Disable in-kernel BTI with recent versions of Clang
  arm64: entry: Avoid unnecessary local_irq_disable() on kernel exit
  irqchip/gic-v3: make the unmasking of pseudo-NMIs explicit when handling IRQs
  arm64: Disable KCSAN instrumentation in delay.o
  arm_mpam: Disable driver unbind to avoid UAF
  arm_mpam: Fix a NULL pointer dereference on unbinding after an error interrupt
  perf: arm_pmuv3: Zero initialize hw_id branch stack field
  arm64: mm: Unmap kernel data/bss entirely from the linear map
  iommu/arm-smmu-v3-sva: Use system_supports_bbml3() to detect CPU feature
  perf/arm-cmn: Support CMN S3 r2
  perf/arm-cmn: Plumb in new filter types
  perf/arm-cmn: Refactor event filter data
  perf/arm-cmn: Refactor event filter programming
  perf/arm-cmn: Rename filter variables for clarity
  arm64: mm: fix accidental linear mapping of no-map reserved memory
  tools: Ensure tools copy of linux/filter.h exports the UAPI
  kselftest/arm64: Fix abi test compilation errors
  arch: arm64: add early_param idle=<wfi|yield|nop>
  arm64: entry: mask DAIF before returning from C EL1 handlers
  ...
2026-08-18 11:57:17 -07:00
Takashi Iwai
b2b82ce147 Merge tag 'asoc-v7.3' of https://git.kernel.org/pub/scm/linux/kernel/git/broonie/sound into for-linus
ASoC: Updates for v7.3

A very busy release, a combination of a lot of new device work and more
people than usual doing various subsystem wide improvements in the code.
The main subsystem level change is the work Morimoto-san has been doing
to get automatic DAI format selection more widely deployed, and even
that is largely changes in the drivers to enable use of the feature
rather than framework work.

 - Conversions of a lot of drivers to use the automatic DAI format
   selection code from Morimoto-san.
 - Many fixes and code improvements from bui duc phuc and Morimoto-san.
 - Fixes for ordering problems in register default tables from Peter
   Ujfalusi.
 - Changes to use auto-cleanup for firmware to improve robustness from
   Takashi Iwai.
 - Support for firmware on more Awinc devices.
 - Many changes in the Qualcomm driver stack, mostly around new platform
   support.
 - Support for AMD ACP7.B/F, Cirrus Logic CS35L62, Loongson 2K0300,
   Meson GX formatter and interface, Qualcomm LPI MI2S, SM8475 and
   WSA855 and Realtek RT1321 VA1/2 and RT766/7.
2026-08-18 08:35:39 +02:00
Linus Torvalds
1d7443e4dc Merge tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux
Pull fscrypt updates from Eric Biggers:
 "The main change this cycle is a significant simplification that's been
  overdue for a while now: standardizing on a single file contents
  encryption implementation in ext4 and f2fs, instead of having two.

  Specifically, the original filesystem-layer file contents encryption
  implementation is removed, and the blk-crypto implementation is now
  used unconditionally. blk-crypto delegates either to inline crypto
  hardware or to the CPU via blk-crypto-fallback. The latter is
  functionally equivalent to the original filesystem-layer code.

  The blk-crypto implementation already existed, but previously it was
  used only when the filesystem was mounted with "-o inlinecrypt". Now,
  "-o inlinecrypt" just selects whether inline crypto hardware is used.

  To allow maintaining that user control over hardware use, the
  blk-crypto API is extended with a new flag BLK_CRYPTO_CFG_ALLOW_HW.

  Overall, this removes quite a bit of redundant code from ext4, f2fs,
  and fs/crypto/. It should make things easier for ongoing filesystem
  efforts such as iomap support, large folios, and btrfs encryption
  (btrfs had already been planning to use blk-crypto exclusively.)

  There are two small behavior changes of note:

   - Direct I/O now works on encrypted files even without "-o inlinecrypt",
     rather than falling back to buffered I/O. This is effectively a
     bugfix, though I'll continue to keep an eye out for any user that
     may have been depending on the buffered I/O fallback.

   - IV_INO_LBLK_32 policies are no longer supported in certain cases
     that didn't make sense and have no known uses.

  This has been in linux-next since July 22 with no reported issues. All
  encryption xfstests pass on ext4 and f2fs. As usual I've also been
  using it on a system with an fscrypt-encrypted home directory. Of
  course, the blk-crypto code paths also aren't new and were already
  being used on many systems via the inlinecrypt mount option.

  In addition to the main change described above, there are a few other
  cleanups such as using lock guards for mutexes, improving
  documentation, and removing a workaround for outdated gcc versions"

* tag 'fscrypt-for-linus' of git://git.kernel.org/pub/scm/fs/fscrypt/linux: (29 commits)
  blk-crypto: Update docs for blk-crypto-fallback motivation
  blk-crypto: Remove unused function blk_crypto_config_supported()
  fscrypt: Update docs for data path
  fscrypt: Remove unused function fscrypt_finalize_bounce_page()
  f2fs: Update outdated comment in f2fs_write_begin()
  fs: Update outdated comment for SB_INLINECRYPT
  fscrypt: Update encryption policy version docs
  fscrypt: Replace some variable-size memsets with fixed-size
  fscrypt: Add safety checks to non-block-based en/decryption
  fscrypt: Merge bio.c and inline_crypt.c into block.c
  fscrypt: Remove unused functions and workqueue
  fscrypt: Remove fs-layer zeroout code
  fscrypt: Remove fscrypt_dio_supported()
  fscrypt: Replace calls to fscrypt_inode_uses_inline_crypto()
  fs/buffer: Remove fs-layer decryption code
  f2fs: Remove fs-layer file contents en/decryption code
  ext4: Further de-generalize the bio postprocessing code
  ext4: Make ext4_bio_write_folio() return void
  ext4: Remove fs-layer file contents en/decryption code
  Documentation: fscrypt: Update docs for inlinecrypt
  ...
2026-08-17 19:04:16 -07:00