Commit Graph

16435 Commits

Author SHA1 Message Date
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
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
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
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
Jori Koolstra
fd8756fa14 net: af_unix: useful handling of LSM denials on SCM_RIGHTS
Right now if some LSM such as Smack denies an AF_UNIX socket peer to
receive an SCM_RIGHTS fd, the SCM_RIGHTS fd array will be cut short at
that point, and MSG_CTRUNC is set on return of recvmsg(). This is
highly problematic behaviour, because it leaves the receiver
wondering what happened. As per man page MSG_CTRUNC is supposed to
indicate that the control buffer was sized too short, but suddenly
a permission error might result in the exact same flag being set.
Moreover, the receiver has no chance to determine how many fds got
originally sent and how many were suppressed.[1]

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. The socket option is
inherited by the child accept() socket if set on the listen() socket.

[1]: https://github.com/uapi-group/kernel-features#useful-handling-of-lsm-denials-on-scm_rights

Reviewed-by: Christian Brauner (Amutable) <brauner@kernel.org>
Signed-off-by: Jori Koolstra <jkoolstra@xs4all.nl>
Link: https://patch.msgid.link/20260813162818.149248-4-jkoolstra@xs4all.nl
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-17 18:14:52 -07:00
Linus Torvalds
55668d04e3 Merge tag 'vfs-7.3-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull cachefiles ondemand removal from Christian Brauner:
 "This sunsets cachefiles ondemand mode.

  It was an effort to make fscache usable as a kernel cache for lazy
  pulling. EROFS over fscache was its only in-tree user. fscache has
  since become netfslib-oriented while EROFS never acts as a network
  filesystem and EROFS over fscache has been removed.

  So this cleans up the netfs, fscache and cachefiles side as well"

* tag 'vfs-7.3-rc1.netfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  cachefiles,netfs: sunset ondemand mode
2026-08-17 13:32:50 -07:00
Linus Torvalds
1c3e8cef79 Merge tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull misc vfs updates from Christian Brauner:
 "Bigger cleanups:

   - The lockref dead-count handling is tidied up.

     The open-coded check for a count below zero as the dead marker
     relies on information the caller should not have.

   - make put_mnt_ns() leave mounts connected. Destroying a mount
     namespace disconnected its mounts from their mount points. So a
     file descriptor still open on the parent of a mount point could be
     used to peek under it.

     Locked mounts were already kept connected to prevent exactly that.
     But a mount is only locked when its tree is copied across a user
     namespace boundary. So a mount namespace set up by a privileged
     component had no locked mounts and its mounts were disconnected.
     Passing UMOUNT_CONNECTED keeps every mount connected and prevents
     that bug.

   - vfs_prepare_mode() passes S_IFDIR for directories. I meant to fix
     that ago but didn't get to it. So now someone finally did it.

     This kills the exception where the mode could be 0 when a directory
     was created whereas every other creation operation passed it
     explicitly already.

   - move long delayed work for ufs, jffs2, hfsplus, hfs and affs from
     the per-cpu system_long_wq to the new unbound system_dfl_long_wq.

     None of that work relies on per-cpu state and the work item is
     enqueued with queue_delayed_work() whose timer is global anyway. So
     it may as well benefit from scheduler task placement.

  Smaller fixes and cleanups:

   - unlock_buffer() and journal_end_buffer_io_sync() use
     clear_and_wake_up_bit()

   - the pipe page pools are unified into a single per-pipe pool and the
     extra wake_up(rd_wait) is limited to EPOLLET consumers

   - eventpoll now computes its timer slack lazily in ep_poll()

   - shrink_dcache_for_umount() keeps making progress on busy roots

   - excess xarray nodes are freed in clear_inode()

   - romfs detects hard link cycles

   - the user path of nested backing files is fixed

   - pidfd holds exec_update_lock around the namespace ioctl

   - non-memcg-aware nr_cached_objects is skipped during memcg slab
     shrink

   - iomap_write_iter() always returns status

   - mangle_path() is renamed to seq_mangle_path()

   - inode timestamp accessors are annotated

   - new regression test for pipe->poll_usage.

   - a few documentation, kernel-doc and selftest fixes"

* tag 'vfs-7.3-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (67 commits)
  selftests/namespaces: Fix racy pipe handshake in timens and pidns_separate
  selftests/epoll: add a regression test for pipe->poll_usage
  pipe: only enable the extra wake_up(rd_wait) for EPOLLET consumers
  pidfd: hold exec_update_lock around namespace ioctl
  fs: fix user path of nested backing files
  fs: remove stale inode_insert5() kernel-doc parameter
  fs: fix switch/case indentation in sysfs() syscall
  fs: document semantics of kstat::{uid,gid} fields
  dcache: keep shrink_dcache_for_umount() making progress on busy roots
  seq_file: rename mangle_path to seq_mangle_path
  nstree: add/fix struct ns_id_req kernel-doc member fields
  dcache: use lockref routines for dead count checks
  lockref: tidy up dead count handling
  initramfs: fix typo in reserve_initrd_mem comment
  fs/pipe: unify the page pools into a single per-pipe pool
  fs: annotate inode timestamp accessors
  eventpoll: compute timer slack lazily in ep_poll()
  selftests/filesystems: add mntns cleanup test
  put_mnt_ns(): leave mounts connected
  affs: Move long delayed work on system_dfl_long_wq
  ...
2026-08-17 12:56:12 -07:00
Linus Torvalds
cd051cfe1e Merge tag 'vfs-7.3-rc1.failfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull failfs filesystem from Christian Brauner:
 "Add failfs and expose a FD_FAILFS_ROOT sentinel.

  This allows userspace to shed their filesystem state completely. A
  process with its root or working directory in failfs must anchor every
  path lookup at an explicit file descriptor. Absolute paths, absolute
  symlinks and AT_FDCWD-relative lookups simply fail.

  Failfs is the counterpart to nullfs. nullfs says adds a permanently
  empty, immutable directory whose lookups fail with ENOENT but which
  can be opened, read, stat'd and mounted upon. Failfs on the other hand
  fails every operation. The root cannot be opened at all. A single
  instance is mounted during early boot via kern_mount(), which makes it
  logically distinct from every mount namespace.

  This is accompanied by a new fchroot() system call which makes
  chrooting via a file descriptor a first class concept. It's possible
  to chroot into failfs as an unprivileged user provided the task has no
  new privileges set"

* tag 'vfs-7.3-rc1.failfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  Documentation: add failfs documentation
  selftests/filesystems: add failfs selftests
  arch: hookup fchroot() system call
  fs: support FD_FAILFS_ROOT in fchroot()
  fs: add fchroot()
  fs: support FD_FAILFS_ROOT in fchdir()
  fs: add failfs
2026-08-17 09:15:52 -07:00
Linus Torvalds
d31a688a49 Merge tags 'vfs-7.3-rc1.efs' and 'vfs-7.3-rc1.freevxfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull efs and freevxfs removal from Christian Brauner:
 "This removes the EFS and freevxfs filesystems:

   - EFS was the read-only on-disk format SGI used on IRIX before XFS

   - freevxfs provided compatibility with various old-school Unix
     systems from the 1990s and was fun 25 years ago. Today it mostly
     serves as fodder for automated bug checkers. There has been only
     one known user and contributor in the last 15 years"

* tag 'vfs-7.3-rc1.efs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  efs: Remove EFS

* tag 'vfs-7.3-rc1.freevxfs' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs:
  freevxfs: remove the driver
2026-08-17 08:55:58 -07:00
Linus Torvalds
b9cba7ebfe Merge tag 'vfs-7.3-rc1.binfmt' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs
Pull binfmt updates from Christian Brauner:
 "This contains a bunch of work for binfmt_misc. It fixes a bunch of
  old bugs, reworks the locking, and then extends the format registry
  so a binary type can be matched programmatically and its interpreter
  computed per exec instead of being a fixed string recorded at
  registration time.

  This allows nixos and other to e.g., implement relocatable binaries
  meaning the interpreter/dynamic loader can be determined
  programatically, say found relative to the binary. The mechanism is
  flexible and can support other policies:

   - Handler lookup is now an rcu walk. An exec that matches no
     binfmt_misc entry should now never write to a shared cacheline

   - remove the VERBOSE_STATUS and USE_DEBUG compile time toggles

   - convert the entry file to a seq_file which simplifies things quite
     a bit and kills a lot of custom logic

   - make flags proper enums

   - rename struct Node to binfmt_misc_entry

   - allow entries to be removed with unlink(2)

   - Add the ability to attach bpf programs to binfmt_misc entries so
     it's possible to dynamically choose the execution environment such
     as the loader or interpreter on a per binary basis.

     A handler is an instance of a binfmt_misc_ops struct_ops with a
     ->match() and a ->load() program. match() decides from the entry
     lookup walk whether the handler applies under the same
     registration-order. It can read file content as needed not only the
     prefetched 256 bytes in bprm->buf.

     load() then selects the interpreter and stages it through the new
     bpf_binprm_set_interp(), bpf_binprm_set_interp_arg() and
     bpf_binprm_set_flags() kfuncs.

     Handlers are published in a registry keyed by the registering
     task's user namespace and activated through the existing text
     interface with a new 'B' type carrying the handler name:

	echo ':origin:B::::nix:' > /proc/sys/fs/binfmt_misc/register

     The permission and namespacing model is unchanged. Activating a
     handler requires the same write access to an instance as any other
     registration. A container mounting its own instance escapes the
     host's entries exactly as before. The computed interpreter is
     opened with open_exec() under the caller's credentials and goes
     through full LSM vetting as the next binprm level. A program can
     only ever redirect the caller to something the caller could exec
     anyway.

   - Two dispatch modes are added. So far the chosen interpreter owns
     the whole process identity (argv[0], /proc/pid/cmdline,
     /proc/self/exe all name interpreter information). So relocatable
     find the dynamic linker instead. Also a binary passed to execveat()
     as an inaccessible O_CLOEXEC fd cannot run at all and gdb trips
     because AT_ENTRY and AT_PHDR do not match the exe file. So PIE
     symbols are unrelocated.

     This adds transparent dispatch which allows the interpreter to load
     the binary through AT_EXECFD and leaves the argument vector exactly
     as the caller built it and labels mm->exe_file and comm with the
     binary. It also raises the AT_FLAGS_TRANSPARENT_INTERP aux vector
     bit. The interpreter keeps control of mapping the binary.

     The second mode is loader substitution. This allows a binary to be
     executed natively and only the interpreter to be changed.

   - Last, interpreters can be bound at registration time. Each
     interpreter is opened by its own write with the credentials the
     entry file was opened with. The program picks one per exec with
     bpf_binprm_select_interp().

     Ucounts are used to properly account for pre-opened interpreters
     via /proc/sys/user/max_binfmt_misc_interpreters"

* tag 'vfs-7.3-rc1.binfmt' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (63 commits)
  binfmt_misc: document the pre-opened interpreter limit
  selftests/exec: test the pre-opened interpreter limit
  binfmt_misc: correctly account pre-opened interpreters
  binfmt_misc: document interpreters bound by a 'B' entry
  selftests/exec: test interpreters bound to a 'B' entry
  binfmt_misc: let a 'B' entry bind its interpreters
  binfmt_misc: carry pre-opened interpreters in struct binfmt_misc_interp
  selftests/exec: share the bpf handler preconditions
  binfmt_misc: document registering an entry disabled
  selftests/exec: test registering an entry disabled
  selftests/exec: let binfmt_flag_supported() return a bool
  selftests/exec: check that a binfmt_misc instance cannot be pinned
  binfmt_misc: let a register string create an entry disabled
  binfmt_misc: document loader substitution
  selftests/exec: test binfmt_misc loader substitution
  binfmt_misc: let a bpf handler request loader substitution
  binfmt_misc: add the 'L' loader substitution flag
  binfmt_elf_fdpic: consume a stashed PT_INTERP substitute
  binfmt_elf: consume a stashed PT_INTERP substitute
  exec: carry a PT_INTERP substitute in struct linux_binprm
  ...
2026-08-17 08:35:25 -07:00
Nick Hudson
da199070bc bpf: Add BPF_F_ADJ_ROOM_DECAP_* flags for tunnel decapsulation
Add new bpf_skb_adjust_room() decapsulation flags:

- BPF_F_ADJ_ROOM_DECAP_L4_GRE
- BPF_F_ADJ_ROOM_DECAP_L4_UDP
- BPF_F_ADJ_ROOM_DECAP_IPXIP4
- BPF_F_ADJ_ROOM_DECAP_IPXIP6

These flags let BPF programs describe which tunnel layer is being
removed, so later changes can update tunnel-related GSO state
accordingly during decapsulation.

This patch only introduces the UAPI flag definitions and helper
documentation.

Co-developed-by: Max Tottenham <mtottenh@akamai.com>
Co-developed-by: Anna Glasgall <aglasgal@akamai.com>
Signed-off-by: Max Tottenham <mtottenh@akamai.com>
Signed-off-by: Anna Glasgall <aglasgal@akamai.com>
Signed-off-by: Nick Hudson <nhudson@akamai.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/bpf/20260812083115.73100-4-nhudson@akamai.com
2026-08-17 11:30:04 +02:00
Nick Hudson
5e4bcad617 bpf: Name the enum for BPF_FUNC_skb_adjust_room flags
The existing anonymous enum for BPF_FUNC_skb_adjust_room flags is
named to enum bpf_adj_room_flags to enable CO-RE (Compile Once -
Run Everywhere) lookups in BPF programs.

Co-developed-by: Max Tottenham <mtottenh@akamai.com>
Co-developed-by: Anna Glasgall <aglasgal@akamai.com>
Signed-off-by: Max Tottenham <mtottenh@akamai.com>
Signed-off-by: Anna Glasgall <aglasgal@akamai.com>
Signed-off-by: Nick Hudson <nhudson@akamai.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/bpf/20260812083115.73100-2-nhudson@akamai.com
2026-08-17 11:29:40 +02:00
Jakub Kicinski
3da8c3c8b8 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.2-rc8).

No conflicts.

Adjacent changes:

drivers/net/ethernet/wangxun/ngbe/ngbe_main.c
  5f3a13e0bb ("net: ngbe: fix NULL pointer dereference in non-MSI-X interrupt enabling")
  d661abdc30 ("net: ngbe: correct misleading interrupt comment")

drivers/net/ipvlan/ipvlan_main.c
  e16e960d55 ("ipvlan: inherit needed_headroom and needed_tailroom from phy_dev")
  00a40d8092 ("ipvlan: Support per-netns netdev unregistration.")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-13 11:00:14 -07:00
Takashi Iwai
91415225fb ALSA: uapi: Drop __bitwise and __force prefix
We've used __bitwise and __force for some integer parameters for
sanity-checks via sparse, with a hope that it'll reduce the misuse or
incorrect assignments.  This worked in principle, but OTOH, it's been
quite a PITA, making the code much uglier than its gain, too, because
one had to cast with __force everywhere.  Also, Rust-binding would
skip those defines because of __force usage, which will become more
pains in near future.

So let's drop __bitwise and __force prefix usages.  In this patch, we
start cleaning up the UAPI headers at first.  The former bit-wised
typedefs are still kept for compatibility for now.

As it's only markers for sparse, the changes are absolutely safe, per
se.  Only that we'll need to watch out more carefully about the
variable usage for PCM format type, etc.

Reviewed-by: Cezary Rojewski <cezary.rojewski@intel.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260812060557.80445-2-tiwai@suse.de
2026-08-13 16:43:26 +02:00
Yuyang Huang
cc17e386f8 ipv6: add ip6_del_rt_reason()
Add RTA_DEL_REASON and enum rt_del_reason to the rtnetlink uAPI, and
add ip6_del_rt_reason(), which takes the reason a route is being
deleted. It has no skip_notify argument: a caller that records a
deletion reason wants the notification that carries it.

The reason is unused for now. Subsequent patches propagate it to the
deletion path and report it on RTM_DELROUTE.

Signed-off-by: Yuyang Huang <sigefriedhyy@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Link: https://patch.msgid.link/20260808005642.26901-2-sigefriedhyy@gmail.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-08-13 12:30:27 +02:00
Jakub Kicinski
f6057f06ef Merge tag 'batadv-next-pullrequest-20260805' of https://git.open-mesh.org/batadv
Simon Wunderlich says:

====================
This cleanup patchset includes the following patches:

 - dat: drop non-4addr backwards compatibility, by Sven Eckelmann

 - tvlv: handle negative tvlv processing return codes,
   by Sven Eckelmann

 - improve kernel-doc, add comments and warnings,
   by Sven Eckelmann (3 patches)

 - coding style: split declarations, reverse x-mas tree,
   by Sven Eckelmann (2 patches)

 - handle errors in batadv_init(), by Minhong He

 - correct NET_RX_* NET_XMIT_* confusion, by Sven Eckelmann

 - remove negative returns for batadv_send_skb_unicast,
   by Sven Eckelmann

* tag 'batadv-next-pullrequest-20260805' of https://git.open-mesh.org/batadv:
  batman-adv: remove negative returns for batadv_send_skb_unicast
  batman-adv: correct NET_RX_* NET_XMIT_* confusion
  batman-adv: handle errors in batadv_init()
  batman-adv: switch var declarations to reverse x-mas tree order
  batman-adv: split multiple declarations per line
  batman-adv: annotate functions which may reallocate the skbuff
  batman-adv: fix kernel-doc for functions holding skb ownership
  batman-adv: add missing kernel-doc comments
  batman-adv: tvlv: handle negative tvlv processing return codes
  batman-adv: dat: drop non-4addr backwards compatibility
====================

Link: https://patch.msgid.link/20260805143200.722098-1-sw@simonwunderlich.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-12 18:51:41 -07:00
HyeongJun An
0414dd7b6f ALSA: seq: Drop the dead struct snd_seq_event_bounce
The struct describes a bounce payload of an error code followed by the
original event and its external data.  No kernel has ever sent that.
Before commit efc86691e4 ("ALSA: seq: Fix kernel heap address leak in
bounce_error_event()") the kernel emitted no SNDRV_SEQ_EVENT_BOUNCE at
all, and since then it sends the event record alone.

Nothing has ever read it either.  Its only accessor,
snd_seq_event_bounce_ext_data(), has had no caller for the whole git
history, and it did not even compile until commit c7e0b5bf9f ("[ALSA]
Remove xxx_t typedefs: Sequencer") incidentally repaired the type name
it referred to, three years after the git import.  Drop the accessor
along with the struct.

This removes a definition from a UAPI header.  Since no kernel ever
produced the layout, nothing can have parsed it, but a program that
merely names the type will need to stop.

Suggested-by: Takashi Iwai <tiwai@suse.de>
Assisted-by: Claude:claude-opus-5
Signed-off-by: HyeongJun An <sammiee5311@gmail.com>
Link: https://patch.msgid.link/20260812141506.4016387-1-sammiee5311@gmail.com
Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-08-12 16:39:11 +02:00
Gao Xiang
949eb95d5b cachefiles,netfs: sunset ondemand mode
It was an effort to enhance fscache as a kernel cache for lazy
pulling (at least according to previous Incremental FS discussion [1])
and EROFS over fscache was the in-tree user of this mode.

fscache has since evolved to be netfslib-oriented, serving network
filesystem inodes via the netfs library, but EROFS never acts as a
network filesystem and we need to cache golden filesystem images rather
than individual EROFS inodes.

Since EROFS over fscache is now removed, clean up netfs/fscache/
cachefiles upstream too.

[1] https://lore.kernel.org/r/CAOQ4uxi4dzxArY24YO=+kBCK2gGoq3Ptb8WkzCqSogPgU_R3dQ@mail.gmail.com

[dh] Fixed up comments on:
https://sashiko.dev/#/patchset/20260716103030.3065561-1-dhowells%40redhat.com
https://sashiko.dev/#/patchset/20260722130218.78958-1-dhowells%40redhat.com

Signed-off-by: Gao Xiang <xiang@kernel.org>
Signed-off-by: David Howells <dhowells@redhat.com>
Link: https://patch.msgid.link/1046393.1786544127@warthog.procyon.org.uk
cc: Paulo Alcantara <pc@manguebit.org>
cc: netfs@lists.linux.dev
cc: linux-erofs@lists.ozlabs.org
cc: bpf@vger.kernel.org
cc: linux-fsdevel@vger.kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-08-12 16:24:26 +02:00
Joerg Roedel
3c6a2bac15 Merge branches 'arm/smmu/updates', 'arm/smmu/bindings', 'mediatek', 'qualcomm/msm', 'rockchip', 'ti/omap', 'riscv', 'intel/vt-d', 'amd/amd-vi', 'core' and 'typos' into next 2026-08-11 09:12:19 +02:00
Yizhou Zhao
cdcc4e4618 ipvs: separate destination availability state
IPVS configuration paths update destination availability while connection
accounting updates destination overload state. The two independent states
share dest->flags, so their read-modify-write updates can race and lose one
another.

Keep OVERLOAD in flags, where the preceding patch serializes its updates
with dst_lock, and move AVAILABLE to cflags. This keeps configuration-
controlled availability out of the scheduler hot cacheline until a
scheduler needs to check it. It also prevents availability updates from
clobbering overload state.

The destination status bits are not exposed through the IPVS sockopt or
netlink interfaces, so keep their definitions in the internal IPVS header.

Readers can still observe stale destination state; this does not provide a
cross-field snapshot.

Fixes: 1da177e4c3 ("Linux-2.6.12-rc2")
Cc: stable@vger.kernel.org
Reported-by: Yizhou Zhao <zhaoyz24@mails.tsinghua.edu.cn>
Reported-by: Yuxiang Yang <yangyx22@mails.tsinghua.edu.cn>
Reported-by: Ao Wang <wangao@seu.edu.cn>
Reported-by: Xuewei Feng <fengxw06@126.com>
Reported-by: Qi Li <qli01@tsinghua.edu.cn>
Reported-by: Ke Xu <xuke@tsinghua.edu.cn>
Link: https://lore.kernel.org/all/8913381c-1e02-35c7-0ec4-61de5a12fd35@ssi.bg/
Assisted-by: Claude-Code:GLM-5.2
Suggested-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Yizhou Zhao <zhaoyz24@mails.tsinghua.edu.cn>
Acked-by: Julian Anastasov <ja@ssi.bg>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
2026-08-10 20:23:35 +02:00
Randy Dunlap
389a3c294a crypto: ccp - don't abuse kernel-doc comment format
Use plain C "/*" notation for comments that are not in kernel-doc format
to avoid kernel-doc warnings:

Warning: include/uapi/linux/psp-sfs.h:18 expecting prototype for SFS().
 Prototype was for PAYLOAD_NAME_SIZE() instead
Warning: include/uapi/linux/psp-sfs.h:46 This comment starts with '/**',
 but isn't a kernel-doc comment.
 * Seamless Firmware Support (SFS) IOC

Fixes: 648dbccc03 ("crypto: ccp - Add AMD Seamless Firmware Servicing (SFS) driver")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Acked-by: Tom Lendacky <thomas.lendacky@amd.com>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
2026-08-10 18:28:55 +10:00
Amit Machhiwal
ac3e65dddd KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl
Introduce a new capability and ioctl to expose CPU compatibility modes
supported by the host processor for nested guests.

On IBM POWER systems, newer processor generations (N) can operate in
compatibility modes corresponding to earlier generations, like (N-1) and
(N-2). This is particularly relevant for nested virtualization, where
nested KVM guests may need to run with a specific processor compatibility
level.

Introduce KVM_CAP_PPC_COMPAT_CAPS capability and the corresponding
KVM_PPC_GET_COMPAT_CAPS vm ioctl. The ioctl returns a bitmap describing
the compatibility modes supported by the host in respective bit numbers,
allowing userspace (e.g., QEMU) to select an appropriate compatibility
level when configuring nested KVM guests.

The ioctl handling is added in kvm_arch_vm_ioctl() and retrieves host
CPU compatibility capabilities via a PowerPC-specific backend
implementation when available.

The struct kvm_ppc_compat_caps places the 'size' field first so it can
be read alone via get_user() before copy_struct_from_user() is called,
avoiding pointer arithmetic to locate the size field.

The ioctl is defined using _IO so the ioctl number remains stable even if
the struct grows in future versions. It uses copy_struct_from_user() and
copy_struct_to_user() to provide forward- and backward-compatible
extensibility: older userspace passing a smaller struct to a newer kernel
gets zero-padded trailing fields. Newer userspace passing a larger struct to
an older kernel (usize > ksize) succeeds if trailing bytes are zero (the
kernel reports back min(usize, ksize) as the filled size); if trailing bytes
are non-zero, the kernel writes back ksize into host_caps.size and returns
-E2BIG so userspace can retry with the correct size.

KVM_PPC_COMPAT_CAPS_SIZE_VER0 is defined as a frozen integer constant
(24) marking the size of the initial struct version, used as the
minimum floor for size field validation, similar to other versioned
struct interfaces in the kernel.

The 'flags' field is reserved for future use. The kernel rejects any
call where flags is non-zero with -EINVAL, preventing garbage values
from being baked into ABI permanently.

The ioctl returns appropriate error codes: E2BIG if usize exceeds
PAGE_SIZE, or if new userspace provides a larger struct with non-zero
trailing bytes (with ksize written back into host_caps.size for the
retry); EINVAL for an invalid size or non-zero reserved fields; EFAULT
for failed copy operations; and ENOTTY if the backend doesn't implement
get_compat_caps.

Suggested-by: Vaibhav Jain <vaibhav@linux.ibm.com>
Tested-by: Gautam Menghani <gautam@linux.ibm.com>
Reviewed-by: Gautam Menghani <gautam@linux.ibm.com>
Tested-by: Anushree Mathur <anushree.mathur@linux.ibm.com>
Reviewed-by: Ritesh Harjani (IBM) <ritesh.list@gmail.com>
Signed-off-by: Amit Machhiwal <amachhiw@linux.ibm.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.ibm.com>
Link: https://patch.msgid.link/20260808161148.66673-2-amachhiw@linux.ibm.com
2026-08-09 20:26:43 +05:30
Bobby Eshleman
b27a8560ee net: devmem: allow rx-page-size > PAGE_SIZE per dmabuf binding
Every devmem dmabuf binding today hands the page_pool PAGE_SIZE niovs.
This caps a single RX descriptor at PAGE_SIZE, burning CPU on buffer
churn for large flows.

Add a bind-time netlink attribute, NETDEV_A_DMABUF_RX_PAGE_SIZE, that
lets userspace request a larger niov size. The value must be a power of
two >= PAGE_SIZE.

The TX path is changed to always pass PAGE_SIZE.

Measurements:
Setup: kperf in devmem RX/TX cuda mode, 4 flows, 64 MB messages, 60s,
dctcp, num-rx-queues=4, dmabuf-rx/tx-size-mb=2048, 10 runs per niov
size, mlx5.

CPU Util:

   niov        net sirq %        net idle %         app sys %        app idle %
  -----  ----------------  ----------------  ----------------  ----------------
     4K   62.38 +/-  8.27   33.40 +/-  7.51   54.15 +/- 10.23   43.67 +/- 10.53
    16K   58.91 +/-  5.35   35.23 +/-  5.88   41.05 +/-  8.87   56.42 +/-  9.24
    32K   64.12 +/-  0.68   31.09 +/-  1.48   44.54 +/-  3.51   52.63 +/-  3.65
    64K   54.69 +/-  5.54   39.67 +/-  5.81   35.47 +/-  3.11   61.97 +/-  3.27

RX app sys % drops ~19% from 4K to 64K.

Throughput:

   niov       RX dev Gbps   RX flow avg Gbps
  -----  ----------------  -----------------
     4K  300.63 +/- 53.21    75.16 +/- 13.30
    16K  321.35 +/- 28.20    80.34 +/-  7.05
    32K  347.63 +/-  2.20    86.91 +/-  0.55
    64K  332.11 +/- 14.26    83.03 +/-  3.56

Throughput seems to increase, but the stdev is pretty wide so could just
be noise.

kperf support (not yet merged):
8837577f92

Acked-by: Stanislav Fomichev <sdf@fomichev.me>
Reviewed-by: Mina Almasry <almasrymina@google.com>
Reviewed-by: Nikolay Aleksandrov <razor@blackwall.org>
Signed-off-by: Bobby Eshleman <bobbyeshleman@meta.com>
Link: https://patch.msgid.link/20260805-tcpdm-large-niovs-v8-1-3e0225e2808c@meta.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-07 18:32:39 -07:00
Simon Schippers
485e38995c tun/tap: add IFF_BACKPRESSURE flag
Add the IFF_BACKPRESSURE flag to the UAPI header and to its tools/ copy.
The flag has no effect yet, it is the opt-in switch for the qdisc
backpressure logic added by the following patches.

It is added to TUN_FEATURES only in the last patch of the series, once the
implementation is complete. Until then TUNSETIFF silently masks it off, as
it does for any flag outside TUN_FEATURES.

Keeping the flag and its users in separate patches would either leave a
window where backpressure is unconditional, or make the opt-in a later
add-on. Adding the flag first lets every following patch be a no-op
unless it is set.

Signed-off-by: Simon Schippers <simon.schippers@tu-dortmund.de>
Link: https://patch.msgid.link/20260803183641.96882-2-simon.schippers@tu-dortmund.de
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-08-07 17:29:15 -07:00
Pavan Chebbi
ee1c26323e fwctl/bnxt: Add DMA buffer support for HWRM commands
Several HWRM commands carry __le64 DMA address fields in their input
structures; firmware reads from or writes to the memory those addresses
point to.

Have a static per-command descriptor table in the driver that records
the details of the DMA fields in each supported HWRM input struct. When
a DMA-bearing HWRM command arrives, the driver reads the userspace
pointer out of each declared address field and clears the field, allocates
a DMA-coherent kernel buffer sized from the command's own length
information, copies data to/from the userspace pointer, and patches the
field with the real DMA bus address before the command is sent to firmware.
Responses are copied back to the original userspace pointer afterward.
Scope-gated allow-list and timeout value list are updated with the new
the commands.

Signed-off-by: Pavan Chebbi <pavan.chebbi@broadcom.com>
Link: https://patch.msgid.link/20260807125846.45570-3-pavan.chebbi@broadcom.com
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2026-08-07 14:18:13 -03:00
Randy Dunlap
c53d730202 ASoC: qcom: audioreach: use C-style "/*" comment
Modify the "/**" to use "/*" instead since this is not a kernel-doc
comment. This avoids all kernel-doc warnings in this header file:

Warning: include/uapi/sound/snd_ar_tokens.h:61 Cannot find identifier on line:
 * %AR_TKN_U32_SUB_GRAPH_INSTANCE_ID:           Sub Graph Instance Id
Warning: ../include/uapi/sound/snd_ar_tokens.h:62 Cannot find identifier on line: *
Warning: ../include/uapi/sound/snd_ar_tokens.h:63 Cannot find identifier on line:
 * %AR_TKN_U32_SUB_GRAPH_PERF_MODE:             Performance mode of subgraph
Warning: include/uapi/sound/snd_ar_tokens.h:64 This comment starts with '/**', but isn't a kernel-doc comment.

Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Reviewed-by: Srinivas Kandagatla <srinivas.kandagatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260715000525.739874-14-rdunlap@infradead.org
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-06 17:15:18 +01:00
Ilya Maximets
d26dcf73a8 openvswitch: remove support for legacy tunnel types
ovs-vswitchd doesn't use OVS_VPORT_TYPE_GRE/VXLAN/GENEVE with the
Linux kernel module since adding support for standard tunnel devices
with COLLECT_METADATA back in 2017.  The code to use them was only
activated as a fallback for old kernels, so not used in practice.  And
it is now fully removed in the upcoming OVS 4.0 release.

Modern way to use tunnels with OVS is to create standard tunnel ports
with RTM_NEWLINK + COLLECT_METADATA and add them as OVS_VPORT_TYPE_NETDEV.

Device reference management and the netlink options parsing for these
legacy port types is complicated and was a CVE magnet in the previous
release cycles.  Existence of these modules also makes locking analysis
for geneve module and other core tunnel devices unnecessarily more
complicated, especially in light of migration to per-netns locking.

Since there are no actual users for these port types for a very long
time, let's just remove the support entirely.  There is no practical
reason to run OVS from 2017 on a recent kernel.

While it's technically a uAPI change in some sense, from the user's
perspective this removal looks indistinguishable from the kernel built
with CONFIG_OPENVSWITCH_GENEVE/VXLAN/GRE disabled.  And it seems like
removal of unused drivers/modules is not a rare event these days.

A comment is added to the uAPI header noting that standard RTM_NEWLINK
with COLLECT_METADATA followed by OVS_VPORT_CMD_NEW with the simple
OVS_VPORT_TYPE_NETDEV should be used instead.

Modules responsible for these tunnel ports are removed as well as
selftests covering this functionality.  Further cleanups will follow.

Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Link: https://patch.msgid.link/20260804182049.2289754-2-i.maximets@ovn.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
2026-08-06 15:09:23 +02:00
Cezary Rojewski
c53cb1f46b ASoC: Intel: Remove obsolete UAPI headers
Both target Intel's skylake-driver, previously found in sound/soc/intel
which has been removed few years ago and succeeded by the avs-driver.

snd_sst_tokens.h is succeeded by uapi/sound/intel/avs/tokens.h
skl-tplg-interface.h to the best of my knowledge has no users. Its types
are reflected in sound/soc/intel/avs/messages.h and are not intended for
public use.  Closest public equivalent would be the firmware's
processing modules but in such case a user has to compile against
Intel's AudioDSP headers, not Linux ones.

Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://patch.msgid.link/20260805064435.429654-1-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-05 12:37:52 +01:00
Maciej Strozek
86cac980c9 ALSA: control: add ioctl to retrieve full card components
The fixed-size components field in SNDRV_CTL_IOCTL_CARD_INFO can be too
small on systems with many audio devices.

Keep the existing struct snd_ctl_card_info ABI intact and add a new
ioctl SNDRV_CTL_IOCTL_CARD_BYTES that carries a variable-length payload
selected by a type discriminator. The first defined type
SND_CTL_CARD_BTYPE_COMPONENTS returns the full components string. The
ioctl is designed to be reused for other variable-length card payloads
in the future.

The user-space caller may set data_allocated == 0 (or data == NULL) to
query the required length; otherwise the kernel copies the payload into
the user buffer and writes back the actual length in data_len.

When the legacy components field in struct snd_ctl_card_info is
truncated, '>' is written just before the NUL terminator to signal to
user-space that the full string is available via the new ioctl.

card->components is now dynamically allocated and grown in 32 byte
increments via krealloc(), capped at 512 bytes.

Link: https://github.com/alsa-project/alsa-lib/pull/494
Suggested-by: Jaroslav Kysela <perex@perex.cz>
Suggested-by: Takashi Iwai <tiwai@suse.com>
Signed-off-by: Maciej Strozek <mstrozek@opensource.cirrus.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Link: https://patch.msgid.link/20260720103505.1860399-2-mstrozek@opensource.cirrus.com
2026-08-05 09:28:59 +02:00
Prasad Kumpatla
67605cbf8d ASoC: qcom: qdsp6: add topology-driven Audio IF support
Add topology parsing and media-format programming for Audio IF source and
sink modules.

Add the Audio IF module IDs, the required topology tokens, and a dedicated
topology loader that stores the parsed interface configuration in the
AudioReach module state. Also add the Audio IF media-format path that
sends the interface configuration, hardware endpoint media format, and
frame-duration parameters for Audio IF modules.

This keeps the serial-interface configuration topology-driven while still
allowing the machine driver to provide runtime slot and media format
settings. The same Audio IF path can then be reused for TDM, PCM, and I2S
style backends.

The new UAPI tokens (AR_TKN_U16_MODULE_SYNC_SRC=262 through
AR_TKN_U8_MODULE_INV_EXT_BIT_CLK=276) are added, together with the value
defines used by the sync source, sync mode, data delay, interface mode,
bit clock type, and polarity tokens.

MODULE_ID_AUDIO_IF_SINK (0x0700117C) and MODULE_ID_AUDIO_IF_SOURCE
(0x0700117D) are introduced in this patch.

This Module is validated on Hawi and Shikra platforms.

Signed-off-by: Prasad Kumpatla <prasad.kumpatla@oss.qualcomm.com>
Link: https://patch.msgid.link/20260804070307.117119-2-prasad.kumpatla@oss.qualcomm.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-08-04 17:32:17 +01:00
Sven Eckelmann
3ebcaccc88 batman-adv: add missing kernel-doc comments
batman-adv requires kernel-doc for all functions and data types visible
outside their own translation unit. Promoting a function from static to
module-wide visibility currently requires adding documentation from
scratch. However, this burden falls on whoever promotes a function from
static to module-wide visibility, rather than its original implementer.

Add the missing kernel-doc comments for the remaining undocumented
functions and data types to reduce the complexity for new contributions.

Signed-off-by: Sven Eckelmann <sven@narfation.org>
2026-08-04 17:33:04 +02:00
Takashi Iwai
78fbf08b4e Merge branch 'for-linus' into for-next
Pull 7.2 devel branch for put_device auto-clean fixes.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
2026-08-03 15:19:30 +02:00
Christian Brauner
b0f09c0796 exec: add AT_FLAGS_TRANSPARENT_INTERP
A transparent binfmt_misc dispatch hands the binary to the interpreter
through AT_EXECFD and leaves the argument vector exactly as the caller
built it. The loader on the receiving end has to know which contract it
got.

On the classic 'O'/'C' entries the binary's path is spliced into the
argument vector and the loader consumes arguments. In transparent mode
nothing was spliced and argv belongs entirely to the program. This
cannot be inferred from AT_EXECFD alone. Raise a new AT_FLAGS bit
following the AT_FLAGS_PRESERVE_ARGV0 precedent added for qemu-user in
commit 2347961b11 ("binfmt_misc: pass binfmt_misc flags to the
interpreter").

The bit also announces that mm->exe_file names the binary rather than
the interpreter (added in the next commit). A loader that sees the bit
may finish the identity polish by fixing up AT_PHDR/AT_ENTRY/AT_BASE in
saved_auxv and fix the code/data markers via one uncapped PR_SET_MM_MAP
once it has mapped the binary. I've got glibc patches for this as well
but it's useful for any loader.

BINPRM_FLAGS_TRANSPARENT_INTERP carries the mode from binfmt_misc to the
ELF loaders. Both had their own copy of the AT_FLAGS translation, so
give them one bprm_at_flags() to share instead of a second copy that can
drift. Nothing sets the bprm flag yet.

Link: https://patch.msgid.link/20260721-work-bpf-binfmt_misc-ptinterp-v2-8-e57866e4ae0f@kernel.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-08-03 10:08:45 +02:00
Nicolin Chen
773f2b9e36 iommu/arm-smmu-v3: Support IDR5.DS and widen the TLBI SCALE field
An SMMU implementing SMMU_IDR5.DS extends the range invalidation commands:
the SCALE field grows a 6th bit, raising its maximum value from 31 to 39,
and TTL == 0b01 becomes a valid level hint for a 16KB translation granule.

Add a new ARM_SMMU_FEAT_DS feature detecting the DS bit, and widen the
CMDQ_TLBI_0_SCALE field to its architectural 6 bits. Mask the scale value
explicitly in arm_smmu_cmdq_batch_add_range(), so the range invalidation
path emits the same commands as before, keeping the pre-existing 5-bit
truncation of a scale above 31.

Also list DS as a valid IDR5 field in the iommu_hw_info_arm_smmuv3 kdoc:
iommufd has always reported the raw IDR5 register, so a VMM may conclude
from that bit alone that it can expose DS to its guest.

Suggested-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Jason Gunthorpe <jgg@nvidia.com>
Reviewed-by: Pranjal Shrivastava <praan@google.com>
Assisted-by: Claude:claude-fable-5
Signed-off-by: Nicolin Chen <nicolinc@nvidia.com>
Signed-off-by: Will Deacon <will@kernel.org>
2026-08-02 10:18:15 +00:00
Kiryl Shutsemau (Meta)
9141eda9ee firmware: arm_sdei: add SDEI_EVENT_SIGNAL support
Add sdei_event_signal(), a thin wrapper over the SDEI_EVENT_SIGNAL call
(DEN0054) that makes the software-signalled event (event 0) pending on a
target PE -- delivered NMI-like even when that PE has interrupts masked.
It takes no locks, so it is safe to call from NMI / crash context.

Signed-off-by: Kiryl Shutsemau (Meta) <kas@kernel.org>
Reviewed-by: Douglas Anderson <dianders@chromium.org>
Tested-by: Yin Fengwei <fengwei_yin@linux.alibaba.com>
Signed-off-by: Will Deacon <will@kernel.org>
2026-08-02 09:21:06 +00:00
Javen Xu
d7722c0308 net: phy: c45: add setup and read master/slave helpers
This patch adds two static helpers in drivers/net/phy/phy-c45.c to
configure and read back master-slave roles for non BASE-T1 Clause 45
PHYs via the 10GBASE-T AN control/status registers.
These helpers are wired into genphy_c45_config_aneg() and
genphy_c45_read_status(). This changes the observable ethtool output
for drivers using the generic c45 read path.

Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Javen Xu <javen_xu@realsil.com.cn>
Link: https://patch.msgid.link/20260728073106.1515-3-javen_xu@realsil.com.cn
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-31 18:22:48 -07:00
Mark Brown
5ce2195c08 ASoC: SOF: ipc4-topology: Update the memory data building
Peter Ujfalusi <peter.ujfalusi@linux.intel.com> says:

This series fixes some issues left to the first version
sof_ipc4_mod_init_ext_dp_memory_data payload building code. The
payload to specify memory requirements of Data Processing components,
running as independent processes in SOF firmware.

But more importantly it adds a payload of similar purpose to the
pipeline create message, e.g. sof_ipc4_glb_pipe_payload. It sums up
the memory requirements of individual Low Latency components in the
pipeline and sends the summed up values in pipeline create message.

Link: https://patch.msgid.link/20260730104141.14817-1-peter.ujfalusi@linux.intel.com
2026-07-31 15:44:40 +01:00
Jyri Sarha
18d0619ced ASoC: SOF: ipc4-topology: Fix SOF_TKN_COMP_STACK_BYTES_REQUIREMENT id
The was inconsistency with SOF_TKN_COMP_STACK_BYTES_REQUIREMENT and
SOF_TKN_COMP_HEAP_BYTES_REQUIREMENT token ids in the Linux driver code
with SOF FW topology code. This commit fixes the Linux side to match
tools/topology/topology2/include/common/tokens.conf

Link: https://github.com/thesofproject/sof/blob/main/tools/topology/topology2/include/common/tokens.conf#L30
Signed-off-by: Jyri Sarha <jyri.sarha@linux.intel.com>
Reviewed-by: Liam Girdwood <liam.r.girdwood@intel.com>
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@linux.intel.com>
Link: https://patch.msgid.link/20260730104141.14817-3-peter.ujfalusi@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
2026-07-31 15:44:34 +01:00
Randy Dunlap
42c8ed5835 nstree: add/fix struct ns_id_req kernel-doc member fields
- drop non-existent @filter
- add missing descriptions for @ns_type and @spare2
- change the descriptions of @ns_id and @user_ns_id based on their commit

to prevent these kernel-doc warnings:

Warning: ../include/uapi/linux/nsfs.h:117 struct member 'ns_type' not
 described in 'ns_id_req'
Warning: ../include/uapi/linux/nsfs.h:117 struct member 'spare2' not
 described in 'ns_id_req'
Warning: ../include/uapi/linux/nsfs.h:117 Excess struct member 'filter'
 description in 'ns_id_req'

Fixes: 76b6f5dfb3 ("nstree: add listns()")
Signed-off-by: Randy Dunlap <rdunlap@infradead.org>
Link: https://patch.msgid.link/20260724031021.814599-1-rdunlap@infradead.org
Signed-off-by: Christian Brauner (Amutable) <brauner@kernel.org>
2026-07-31 10:09:12 +02:00
Jack Ma
53531e6a64 net: nexthop: add NHA_DST_PORT for fdb nexthops
Commit 1274e1cc42 ("vxlan: ecmp support for mac fdb entries") lets a
single inner MAC be reached through a group of remote VTEPs, with the
kernel flow-hashing across the group members.  Each member carries its
own remote IP, but the UDP destination port is always taken from the
VXLAN device (vxlan->cfg.dst_port) and cannot be set per member.

Some deployments pack several receivers behind one underlay IP and tell
them apart by UDP port, so they need a per-nexthop destination port to
spread flows across (IP, port) tuples rather than IP alone.

Add a netlink attribute NHA_DST_PORT (__be16, mirroring NDA_PORT) that
carries an optional UDP destination port on an fdb nexthop.  It is only
accepted together with NHA_FDB and NHA_GATEWAY; it is stored in struct
nh_info and echoed back on dump.  The attribute is named generically
rather than fdb-specific so it can be reused should another nexthop type
ever need a destination port.  This patch is control-plane plumbing
only; the VXLAN datapath is wired up in a follow-up patch, so behaviour
is unchanged for now.

Signed-off-by: Jack Ma <jack4it@gmail.com>
Reviewed-by: Ido Schimmel <idosch@nvidia.com>
Reviewed-by: David Ahern <dsahern@kernel.org>
Link: https://patch.msgid.link/20260724-b4-vxlan-fdb-port-v5-1-cd1c6aeee058@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-30 16:09:22 -07:00
Jakub Kicinski
5c45807355 Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net
Cross-merge networking fixes after downstream PR (net-7.2-rc6).

No conflicts.

Adjacent changes:

net/ipv4/route.c
  dbc3791e3b ("net: do not send ICMP/NDISC Redirects when peer allocation fails")
  7804eaa057 ("ipv4: snapshot dst.dev in ip_rt_send_redirect() and ip_rt_get_source()")

drivers/net/tun.c
  23dad2d088 ("tun: no longer rely on RTNL in tun_fill_info()")
  c3da92af07 ("Revert "tun/tap: add ptr_ring consume helper with netdev queue wakeup"")

drivers/net/ethernet/marvell/octeontx2/af/rvu_npc.c
  3bd438a58e ("octeontx2-af: Block VFs from clobbering special CGX PKIND state")
  5ba5611ef9 ("octeontx2-af: reserve 4 PKINDs for skip-size custom use")

drivers/net/wireless/ath/ath12k/core.h
drivers/net/wireless/ath/ath12k/mac.c
drivers/net/wireless/ath/ath12k/peer.c
  469d7e6077 ("wifi: ath12k: resolve PENDING ML peer ID from MLO_PEER_MAP HTT event")
  378e659029 ("wifi: ath12k: introduce host_alloc_ml_id hardware parameter")
  c42b27336e ("wifi: ath12k: fix survey indexing across bands")

Signed-off-by: Jakub Kicinski <kuba@kernel.org>
2026-07-30 12:53:19 -07:00