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Author SHA1 Message Date
Linus Torvalds
a625b2a387 VFIO updates for v7.3-rc1 
- 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)
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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
073e62fd33 RISC-V updates for v7.3 
- Add initial definitions and discovery for the Smcsrind, Sscsrind,
   Smcntrpmf, Ssccfg, Smcdeleg, Zicclsm, Ziccamoa, Ziccif, Ziccrse,
   Za64rs, and Ssqosid RISC-V ISA extensions
 
 - Improve the RISC-V update_mmu_cache_range() implementation by using
   flush-by-ASID, enabling performance improvements on
   microarchitectures that support related optimizations; and by taking
   advantage of the Svinval RISC-V ISA extension on microarchitectures
   that support it
 
 - Shrink CFI shadow stack allocation further (to 512MB) to save
   virtual address space (and physical memory on systems with strict
   overcommit policies)
 
 - Add initial CPU context switch support for QoS tagging (Ssqosid)
 
 - Change our vector misaligned access speed test code to be
   synchronous, avoiding a bunch of bugs related to unnecessary
   asynchronicity
 
 - Enable ARCH_HAS_ACPI_TABLE_UPGRADE for RISC-V to help with ACPI
   table debugging (similar to ARM64 and x86)
 
 - Extract vDSO section offsets at build time, rather than run time, to
   avoid the boot time overhead
 
 - Use assembler directives to control the use of instructions from the
   RISC-V ISA extensions Zacas and Zabha, rather than compiler -march
   flags that could affect the whole kernel (similar to ARM64)
 
 - Add a kselftest for kprobes support for the c.jal instruction on
   RISC-V
 
 - When UEFI runtime services are available, use them to restart and
   power off
 
 - Fix ARCH_HAS_ACPI_TABLE_UPGRADE for RISC-V by adding a missing
   include file to the ACPI code
 
 - Move contiguous DMA memory reservation later in the boot, to ensure
   that the correct global and per-node pools are allocated when
   CONFIG_CMA_SIZE_PERNUMA is enabled
 
 - Disallow probes on breakpoint handlers to avoid recursing
   indefinitely into do_trap_break()
 
 - Patch the compat vDSO during runtime alternatives processing, not
   only the standard vDSO
 
 - Remove some leftover XIP support elements missed by commit
   9b3a2be848 ("riscv: Remove support for XIP kernel")
 
 - Fix broadcast timer switching in ACPI LPI power states by
   implementing a RISC-V version of arch_get_idle_state_flags()
 
 - Miscellaneous fixes, including: vDSO makefile simplification;
   marking our default_power_off() as __noreturn; error path fixes in
   the PMU SBI perf driver; RISC-V extension capitalization
   consistency; the use of BIT() macros in one of our include files;
   and some documentation fixes
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Merge tag 'riscv-for-linus-7.3-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux

Pull RISC-V updates from Paul Walmsley

 - Add initial definitions and discovery for the Smcsrind, Sscsrind,
   Smcntrpmf, Ssccfg, Smcdeleg, Zicclsm, Ziccamoa, Ziccif, Ziccrse,
   Za64rs, and Ssqosid RISC-V ISA extensions

 - Improve the RISC-V update_mmu_cache_range() implementation by using
   flush-by-ASID, enabling performance improvements on
   microarchitectures that support related optimizations; and by taking
   advantage of the Svinval RISC-V ISA extension on microarchitectures
   that support it

 - Shrink CFI shadow stack allocation further (to 512MB) to save virtual
   address space (and physical memory on systems with strict overcommit
   policies)

 - Add initial CPU context switch support for QoS tagging (Ssqosid)

 - Change our vector misaligned access speed test code to be
   synchronous, avoiding a bunch of bugs related to unnecessary
   asynchronicity

 - Enable ARCH_HAS_ACPI_TABLE_UPGRADE for RISC-V to help with ACPI table
   debugging (similar to ARM64 and x86)

 - Extract vDSO section offsets at build time, rather than run time, to
   avoid the boot time overhead

 - Use assembler directives to control the use of instructions from the
   RISC-V ISA extensions Zacas and Zabha, rather than compiler -march
   flags that could affect the whole kernel (similar to ARM64)

 - Add a kselftest for kprobes support for the c.jal instruction on
   RISC-V

 - When UEFI runtime services are available, use them to restart and
   power off

 - Fix ARCH_HAS_ACPI_TABLE_UPGRADE for RISC-V by adding a missing
   include file to the ACPI code

 - Move contiguous DMA memory reservation later in the boot, to ensure
   that the correct global and per-node pools are allocated when
   CONFIG_CMA_SIZE_PERNUMA is enabled

 - Disallow probes on breakpoint handlers to avoid recursing
   indefinitely into do_trap_break()

 - Patch the compat vDSO during runtime alternatives processing, not
   only the standard vDSO

 - Remove some leftover XIP support elements missed by commit
   9b3a2be848 ("riscv: Remove support for XIP kernel")

 - Fix broadcast timer switching in ACPI LPI power states by
   implementing a RISC-V version of arch_get_idle_state_flags()

 - Miscellaneous fixes, including: vDSO makefile simplification; marking
   our default_power_off() as __noreturn; error path fixes in the PMU
   SBI perf driver; RISC-V extension capitalization consistency; the use
   of BIT() macros in one of our include files; and some documentation
   fixes

* tag 'riscv-for-linus-7.3-mw1' of git://git.kernel.org/pub/scm/linux/kernel/git/riscv/linux: (39 commits)
  RISC-V: hwprobe: Use BIT macro to avoid warnings
  riscv: alternative: Also patch the compat vDSO
  riscv: alternative: Use the statically extracted vDSO section offsets
  riscv: vdso: Add symbols for the alternative section boundaries
  riscv: Add Ziccamoa, Ziccif, Ziccrse, and Za64rs to cpufeature and hwprobe
  riscv: Add Zicclsm to cpufeature and hwprobe
  riscv: cpufeature: Clarify ISA spec version for canonical order
  riscv: Standardize extension capitalization
  riscv: kprobes: Prevent probes in breakpoint handlers
  riscv: cmpxchg: Use .option arch for Zacas and Zabha
  riscv: acpi: Handle LPI architectural context loss flags
  riscv: further remove XIP
  riscv: Add support for srmcfg CSR from Ssqosid extension
  riscv: Detect the Ssqosid extension
  dt-bindings: riscv: Add Ssqosid extension description
  dt-bindings: riscv: add Counter delegation ISA extensions description
  RISC-V: Add Ssccfg/Smcdeleg ISA extension definition and parsing
  RISC-V: Add Ssccfg extension CSR definition
  dt-bindings: riscv: add Smcntrpmf ISA extension description
  RISC-V: Add Smcntrpmf extension parsing
  ...
 2026-08-20 14:53:54 -07:00
Linus Torvalds
73cc4da385 m68k updates for v7.3 
- Fix backtraces for non-running tasks,
   - Fix deadlock in show_cons_active(),
   - Defconfig updates,
   - Miscellaneous fixes and improvements.
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Merge tag 'm68k-for-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k

Pull m68k updates from Geert Uytterhoeven:

 - Fix backtraces for non-running tasks

 - Fix deadlock in show_cons_active()

 - defconfig updates

* tag 'm68k-for-v7.3-tag1' of git://git.kernel.org/pub/scm/linux/kernel/git/geert/linux-m68k:
  m68k: nfcon: Do not call console_is_registered() in nfcon_device()
  m68k: Fix backtraces for non-running tasks
  m68k: defconfig: Update defconfigs for v7.2-rc1
  m68k: amiga: Remove redundant amiga_reset() prototype
 2026-08-20 14:49:34 -07:00
Linus Torvalds
caf325ab81 LoongArch changes for v7.3 
1, Add DIRECT_MAP_PHYSMEM_END definition;
 2, Expand module virtual address space to 2GB;
 3, Use current_stack_pointer in current_pt_regs();
 4, BPF JIT enhancements such as kptr_xchg and timed may_goto;
 5, Some bug fixes and other small changes.
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Merge tag 'loongarch-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson

Pull LoongArch updates from Huacai Chen:

 - Add DIRECT_MAP_PHYSMEM_END definition

 - Expand module virtual address space to 2GB

 - Use current_stack_pointer in current_pt_regs()

 - BPF JIT enhancements such as kptr_xchg and timed may_goto

 - Some bug fixes and other small changes

* tag 'loongarch-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson:
  selftests/bpf: Enable kptr_xchg_inline test on LoongArch
  LoongArch: BPF: Add arch_bpf_stack_walk() implementation
  LoongArch: BPF: Add timed may_goto implementation
  LoongArch: BPF: Resolve per-CPU addrs for internal-only MOV
  LoongArch: BPF: Advertise JIT support for kptr xchg inline
  LoongArch: BPF: Align value-returning atomics with LKMM
  LoongArch: BPF: Split unconditional branch JA paths statically
  LoongArch: BPF: Remove dead move_imm() call in BPF_NEG path
  LoongArch: BPF: Remove redundant zext jumping in move_imm()
  LoongArch: BPF: Implement branchless conditional move for TCC
  LoongArch: BPF: Refactor jump offset calculation in tail call
  LoongArch: BPF: Move arena register slot below TCC context
  LoongArch: BPF: Optimize redundant TCC loads in epilogue
  LoongArch: Use current_stack_pointer in current_pt_regs()
  LoongArch: Use generic cmp_int() instead of custom cmp_3way()
  LoongArch: Expand module virtual address space to 2GB
  LoongArch: Add DIRECT_MAP_PHYSMEM_END definition
  LoongArch: Fix acpi_package_ids[] array overflow
 2026-08-20 14:46:50 -07:00
Linus Torvalds
9328b3b03b \n 
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Merge tag 'fs_for_v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs

Pull ext2, udf, isofs, and quota updates from Jan Kara:

 - Remove deprecated quota code printing warnings about exceeded quota
   directly to console

 - Various udf & isofs hardening for handling of corrupted filesystems

 - Fix a possible data loss in udf when converting files from inline to
   out-of-line format

 - Simplify EIO error handling in ext2 xattr code

* tag 'fs_for_v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/jack/linux-fs:
  udf: Fix data loss when converting inline inodes to out of line
  udf: Move udf_map_block() up
  ext2: Simplify error handling of IO error when adding xattr
  isofs: Drop support of directory entries straddling blocks
  isofs: validate directory records consistently
  quota: remove CONFIG_PRINT_QUOTA_WARNING code
  udf: Fix i_lenExtents truncation on 32-bit kernels
  isofs: release zisofs block pointer buffer head
  udf: Fix bh leak for unallocated space entries
  udf: bound lengthAllocDescs from unallocated space entry
  UDF symlink pathComponent header OOB read
  isofs: fix out-of-bounds page array access on empty zisofs block
  udf: reject VAT indexes equal to the entry count
  udf: Mark LVID buffer as uptodate before marking it dirty
  udf: avoid recursive s_alloc_mutex deadlock when freeing AED blocks
  udf: validate extent partition references in udf_current_aext()
 2026-08-20 12:52:35 -07:00
Linus Torvalds
cf62c7084a execve update for v7.3-rc1 
- x86/elf: Correct comment for STACK_RND_MASK() (Lorenzo Stoakes)
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Merge tag 'execve-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux

Pull execve update from Kees Cook:

 - x86/elf: Correct comment for STACK_RND_MASK() (Lorenzo Stoakes)

* tag 'execve-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux:
  x86/elf: Correct comment for STACK_RND_MASK()
 2026-08-20 12:03:45 -07:00
Linus Torvalds
ae814200e8 bitmap updates for v7.3 
- bitmap_find_next_zero_area_off() optimization (Sunyi);
  - bitmap_find_next_zero_area_off(): return size when no zero area is
    found (Yury);
  - bitmap vs IDA vs Maple Tree performance test (Yury);
  - get rid of cpumap_print_to_pagebuf() (Yury);
  - use nr_node_ids in __nodemask_pr_numnodes() (Li RongQing);
  - bitops: make the *_bit_le functions use unsigned long (Benjamin);
  - bitmap scatter & gather test fix (Christophe);
  - use __ASSEMBLER__ in bitmap header files (Thomas);
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Merge tag 'bitmap-for-7.3' of https://github.com/norov/linux

Pull bitmap updates from Yury Norov:
 "The usual set of fixes, cleanups and performance improvements together
  with a couple of new tests:

   - bitmap_find_next_zero_area_off() optimization (Sunyi)

   - bitmap_find_next_zero_area_off(): return size when no zero area is
     found (Yury)

   - bitmap vs IDA vs Maple Tree performance test (Yury)

   - get rid of cpumap_print_to_pagebuf() (Yury)

   - use nr_node_ids in __nodemask_pr_numnodes() (Li RongQing)

   - bitops: make the *_bit_le functions use unsigned long (Benjamin)

   - bitmap scatter & gather test fix (Christophe)

   - use __ASSEMBLER__ in bitmap header files (Thomas)"

* tag 'bitmap-for-7.3' of https://github.com/norov/linux: (25 commits)
  lib: test bitmap vs IDA vs Maple Tree performance for region allocations
  bitmap: Return size when no zero area is found
  media: s5p-mfc: Treat bitmap size as allocation failure
  crypto: ccp: Treat bitmap size as allocation failure
  powerpc/msi: Treat bitmap size as allocation failure
  ARM: dma-mapping: Treat bitmap size as allocation failure
  bitmap: drop bitmap_next_set_region()
  nodemask: reduce bitmap width to nr_node_ids in __nodemask_pr_numnodes()
  bitmap: Properly initialise destination bitmap for scatter & gather test
  lib/bitmap-str: get rid of cpumap_print_to_pagebuf()
  perf: Use sysfs_emit() for cpumask show callbacks
  PCI/sysfs: Use sysfs_emit() for cpumask show callbacks
  RDMA/hfi1: Use sysfs_emit() for cpumask show helper
  hwtracing: hisi_ptt: Use sysfs_emit() for cpumask show
  fpga: dfl-fme-perf: Use sysfs_emit() for cpumask show
  devfreq: Use sysfs_emit() for cpumask show callbacks
  cpu: Use sysfs_emit() for cpumask show callback
  x86/events: Use sysfs_emit() for cpumask show callbacks
  powerpc: Use sysfs_emit() for cpumask show callbacks
  arm: Use sysfs_emit() for cpumask show callbacks
  ...
 2026-08-20 11:41:46 -07:00
Linus Torvalds
9d2ed026f0 Summary 
* Documentation
 
   Fix kernel-doc warnings by adjusting in file documentation.
 
 * Consolidate do_proc_* function into do_proc_vec.
 
   Consolidate three slightly different implementations of applying a converter
   on all elements of a vector. Fixes to this function now propagate to the three
   types.
 
 * Miscellaneous
 
   Replaced CONFIG_PROC_SYSCTL with CONFIG_SYSCTL (they were the same) and
   restrict cad_pid modifications to global root (GLOBAL_ROOT_UID)
 
 * Testing
 
   This series was run through sysctl selftests/kunit test suite in x86_64. And
   went into linux-next around rc2, giving it a bit more than a month of testing.
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Merge tag 'sysctl-7.03-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl

Pull sysctl updates from Joel Granados:

 - Fix kernel-doc warnings by adjusting in file documentation

 - Consolidate do_proc_* function into do_proc_vec

   Consolidate three slightly different implementations of applying a
   converter on all elements of a vector. Fixes to this function now
   propagate to the three types.

 - Replace CONFIG_PROC_SYSCTL with CONFIG_SYSCTL (they were the same)
   and restrict cad_pid modifications to global root (GLOBAL_ROOT_UID)

* tag 'sysctl-7.03-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/sysctl/sysctl:
  sysctl: remove CONFIG_PROC_SYSCTL, it just mirrors CONFIG_SYSCTL
  sysctl: move the "cad_pid" entry from pid_table[] to kern_reboot_table[]
  sysctl: repair some kernel-doc comments
  sysctl: add Returns: kernel-doc for all functions
  sysctl: Update API function documentation
  sysctl: Rename proc_doulongvec_minmax_conv to proc_doulongvec_conv
  sysctl: Group proc_handler declarations and document
  sysctl: Replace do_proc_do{int,ulong,uint}vec with do_proc_vec
  sysctl: Add negp parameter to douintvec converter functions
  sysctl: Move default converter assignment out of do_proc_dointvec
 2026-08-20 08:46:41 -07:00
Linus Torvalds
91ec203513 Networking changes for 7.3. 
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
 --------
 
  - Marge 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.
 
 Signed-off-by: Jakub Kicinski <kuba@kernel.org>
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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 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.
 
 Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
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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 This update includes the following changes: 
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.
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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
4994ef0fe0 IOMMU updates for Linux v7.3: 
- 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.
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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
59e6295fac Driver core changes for 7.3-rc1 
- container_of:
 
   - Apply typeof_member(), remove the local __mptr variable to eliminate
     variable shadowing warnings on nested container_of() calls, and remove
     unnecessary parentheses.
 
 - core:
 
   - Add driver name to probe debug print for initcall_debug.
 
   - Avoid repeatedly printing the same 'Fixed dependency cycle' log.
 
   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device().
 
   - Remove statistics group if encryption group creation fails in
     transport_add_class_device().
 
 - debugfs:
 
   - Fix lockdown check for mmap_prepare().
 
   - Warn if file creation failed due to uninitialized debugfs.
 
 - device property:
 
   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from DEV_PROP_REF
     properties to enable automatic probe ordering. Add kunit-managed fwnode
     helpers and test coverage.
 
   - Fix infinite loop in fwnode_for_each_child_node() when the secondary fwnode
     has more than one child. Add test cases.
 
   - Fix out-of-bounds access in software_node_get_reference_args() when called
     with index -1 (UINT_MAX).
 
   - Refactor to use RAII approach with __free().
 
   - Add Bartosz Golaszewski as software node reviewer.
 
 - firmware loader:
 
   - Fix race where a sysfs fallback request can complete before being queued as
     pending, leading to a use-after-free on the next fallback request.
 
   - Reject 0-size built-in firmware and fail the build on empty firmware files
     in CONFIG_EXTRA_FIRMWARE.
 
 - kobject:
 
   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros and
     allow the constification of kobject attributes, enabling them to reside in
     read-only memory.
 
 - platform:
 
   - Provide platform_device_set_of_node(), platform_device_set_fwnode(), and
     platform_device_set_of_node_from_dev() helpers that encapsulate firmware
     node reference counting for dynamically allocated platform devices. Convert
     all in-tree users that manually assigned dev.of_node or dev.fwnode, fixing a
     pre-existing refcount bug in powermac.  Switch to counting references of all
     firmware node types, not only OF nodes.
 
   - Unify the release path for dynamically allocated platform devices by
     removing platform_device_release_full(). Amend the fwnode setter API
     contract to warn if a primary software node is overwritten. Add KUnit tests
     for correct software node removal on device unregistration.
 
 - Rust:
 
   - Auxiliary:
 
     - Add registration_data_with() closure-based API for invariant ForLt types.
 
   - Debugfs:
 
     - Migrate BinaryWriter and BinaryReaderMut trait requirements from
       kernel::transmute traits to zerocopy traits.
 
   - Device:
 
     - Add BoundInternal device context and InternalBoundContext trait for bus
       abstractions that need internal access to a bound device.
 
     - Make the lifetime on Core and CoreInternal invariant to prevent coercion
       to shorter lifetimes.
 
   - Devres:
 
     - Fix race between concurrent revokers where the losing revoker could return
       before the winning revoker finished dropping the inner data, causing
       use-after-free.
 
     - Ensure revocation is complete before the device finishes unbinding by
       making the synchronization bidirectional.
 
     - Add DevresLt<F: ForLt>, a wrapper around Devres that shortens 'static back
       to the caller's borrow scope. Implement ForLt and CovariantForLt for Bar,
       IoMem, and ExclusiveIoMem.
 
   - Driver:
 
     - Switch from index-based to pointer-based device ID info lookup, storing
       static references in driver_data. Centralize device ID handling in
       device_id.rs, removing the open-coded ACPI/OF matching logic and duplicate
       ID table from driver.rs.
 
   - I/O:
 
     - Make I/O regions typed (with a dynamically-sized Region type for the
       existing untyped case), create view types representing subregions of a
       mapped I/O region, and add io_project!() for safely creating subviews.
 
     - Split Io into a base trait (IoBase) and an extension trait (Io) with a
       blanket implementation, preventing implementers from overriding provided
       methods that unsafe code relies on.
 
     - Add a SysMem backend for shared system memory with volatile access, and
       make Coherent implement Io via an I/O view type.  Add IoSysMap as sum type
       of Mmio and SysMem. Add copying methods (memcpy_{from,to}io()) and
       read_val()/write_val() for typed access.
 
     - Replace dma_read!()/dma_write!() with io_read!()/io_write!() for
       primitives and copying methods for aggregates; drop the old macros.
       Convert nova-core to use I/O projection.
 
     - Fix internal shortcut rule dispatch in the register!() macro, remove
       unused rule arguments, and use path fragments for alias destinations.
 
   - IRQ:
 
     - Make irq::Registration compatible with lifetime-bound drivers by
       removing the 'static bound on Handler/ThreadedHandler and
       replacing Devres<RegistrationInner> with direct
       request_irq()/free_irq() calls.  Handlers can now directly own
       lifetime-bound device resources.
 
   - PCI:
 
     - Convert IrqVectorRegistration to a lifetime-annotated owning type,
       giving drivers explicit control over the allocation lifetime.
       IrqVector embeds a resolved IrqRequest, making the conversion
       infallible. Remove the redundant
       request_irq()/request_threaded_irq() wrappers from pci::Device.
 
     - Add pci_irq_type() C helper and expose it via irq_type() on
       IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX, PCI_IRQ_MSI,
       or PCI_IRQ_INTX.
 
     - Mark pci::Device refcount methods inline.
 
   - Serdev:
 
     - Add Rust abstractions for the serial device bus, including serdev::Driver
       trait, serdev::Device wrapping struct serdev_device, and serdev::Adapter
       implementing RegistrationOps.  Includes a sample driver. Markus Probst
       takes over as serdev maintainer for both C and Rust code.
 
   - Misc:
 
     - Split ForLt into a base trait (providing the Of<'a> GAT) and an unsafe
       CovariantForLt subtrait guaranteeing covariance, enabling invariant types
       (e.g. those containing Mutex<&'bound T>) to participate in the ForLt
       abstraction.
 
     - Fix Coherent read past EOF returning -ERANGE instead of zero.
 
     - Fix firmware example UB by avoiding null-pointer ARef.
 
 - misc:
 
   - Avoid iattr allocation in kernfs listxattr by using kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark internal property
     data as private for kernel-doc, and add property.h/fwnode.h to driver-api
     infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h.
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Merge tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core

Pull driver core updates from Danilo Krummrich:
 "container_of:

   - Apply typeof_member(), remove the local __mptr variable to
     eliminate variable shadowing warnings on nested container_of()
     calls, and remove unnecessary parentheses

  core:

   - Add driver name to probe debug print for initcall_debug

   - Avoid repeatedly printing the same 'Fixed dependency cycle' log

   - Unwind device_add() on attribute creation failure in
     attribute_container_add_class_device()

   - Remove statistics group if encryption group creation fails in
     transport_add_class_device()

  debugfs:

   - Fix lockdown check for mmap_prepare()

   - Warn if file creation failed due to uninitialized debugfs

  device property:

   - Implement fw_devlink support for software nodes by adding
     software_node_add_links(), which creates fwnode links from
     DEV_PROP_REF properties to enable automatic probe ordering. Add
     kunit-managed fwnode helpers and test coverage

   - Fix infinite loop in fwnode_for_each_child_node() when the
     secondary fwnode has more than one child. Add test cases

   - Fix out-of-bounds access in software_node_get_reference_args() when
     called with index -1 (UINT_MAX)

   - Refactor to use RAII approach with __free()

   - Add Bartosz Golaszewski as software node reviewer

  firmware loader:

   - Fix race where a sysfs fallback request can complete before being
     queued as pending, leading to a use-after-free on the next fallback
     request

   - Reject 0-size built-in firmware and fail the build on empty
     firmware files in CONFIG_EXTRA_FIRMWARE

  kobject:

   - Provide __KOBJ_ATTR() and __KOBJ_ATTR_RO/WO() initialization macros
     and allow the constification of kobject attributes, enabling them
     to reside in read-only memory

  platform:

   - Provide platform_device_set_of_node(), platform_device_set_fwnode(),
     and platform_device_set_of_node_from_dev() helpers that encapsulate
     firmware node reference counting for dynamically allocated platform
     devices

     Convert all in-tree users that manually assigned dev.of_node or
     dev.fwnode, fixing a pre-existing refcount bug in powermac. Switch
     to counting references of all firmware node types, not only OF
     nodes

   - Unify the release path for dynamically allocated platform devices
     by removing platform_device_release_full(). Amend the fwnode setter
     API contract to warn if a primary software node is overwritten. Add
     KUnit tests for correct software node removal on device
     unregistration

  Rust:

   - Auxiliary:
       - Add registration_data_with() closure-based API for invariant
         ForLt types

   - Debugfs:
       - Migrate BinaryWriter and BinaryReaderMut trait requirements
         from kernel::transmute traits to zerocopy traits

   - Device:
       - Add BoundInternal device context and InternalBoundContext trait
         for bus abstractions that need internal access to a bound
         device.
       - Make the lifetime on Core and CoreInternal invariant to prevent
         coercion to shorter lifetimes

   - Devres:
       - Fix race between concurrent revokers where the losing revoker
         could return before the winning revoker finished dropping the
         inner data, causing use-after-free.
       - Ensure revocation is complete before the device finishes
         unbinding by making the synchronization bidirectional.
       - Add DevresLt<F: ForLt>, a wrapper around Devres that shortens
         'static back to the caller's borrow scope. Implement ForLt and
         CovariantForLt for Bar, IoMem, and ExclusiveIoMem

   - Driver:
       - Switch from index-based to pointer-based device ID info lookup,
         storing static references in driver_data. Centralize device ID
         handling in device_id.rs, removing the open-coded ACPI/OF
         matching logic and duplicate ID table from driver.rs

   - I/O:
       - Make I/O regions typed (with a dynamically-sized Region type
         for the existing untyped case), create view types representing
         subregions of a mapped I/O region, and add io_project!() for
         safely creating subviews.
       - Split Io into a base trait (IoBase) and an extension trait (Io)
         with a blanket implementation, preventing implementers from
         overriding provided methods that unsafe code relies on.
       - Add a SysMem backend for shared system memory with volatile
         access, and make Coherent implement Io via an I/O view type.
         Add IoSysMap as sum type of Mmio and SysMem. Add copying
         methods (memcpy_{from,to}io()) and read_val()/write_val() for
         typed access.
       - Replace dma_read!()/dma_write!() with io_read!()/io_write!()
         for primitives and copying methods for aggregates; drop the old
         macros. Convert nova-core to use I/O projection.
       - Fix internal shortcut rule dispatch in the register!() macro,
         remove unused rule arguments, and use path fragments for alias
         destinations

   - IRQ:
       - Make irq::Registration compatible with lifetime-bound drivers
         by removing the 'static bound on Handler/ThreadedHandler and
         replacing Devres<RegistrationInner> with direct
         request_irq()/free_irq() calls. Handlers can now directly own
         lifetime-bound device resources

   - PCI:
       - Convert IrqVectorRegistration to a lifetime-annotated owning
         type, giving drivers explicit control over the allocation
         lifetime. IrqVector embeds a resolved IrqRequest, making the
         conversion infallible. Remove the redundant
         request_irq()/request_threaded_irq() wrappers from pci::Device.
       - Add pci_irq_type() C helper and expose it via irq_type() on
         IrqVectorRegistration and IrqVector, returning PCI_IRQ_MSIX,
         PCI_IRQ_MSI, or PCI_IRQ_INTX.
       - Mark pci::Device refcount methods inline

   - Serdev:
       - Add Rust abstractions for the serial device bus, including
         serdev::Driver trait, serdev::Device wrapping struct
         serdev_device, and serdev::Adapter implementing
         RegistrationOps. Includes a sample driver. Markus Probst takes
         over as serdev maintainer for both C and Rust code

   - Misc:
       - Split ForLt into a base trait (providing the Of<'a> GAT) and an
         unsafe CovariantForLt subtrait guaranteeing covariance,
         enabling invariant types (e.g. those containing Mutex<&'bound T>)
         to participate in the ForLt abstraction.
       - Fix Coherent read past EOF returning -ERANGE instead of zero.
       - Fix firmware example UB by avoiding null-pointer ARef

  misc:
   - Avoid iattr allocation in kernfs listxattr by using
     kernfs_iattrs_noalloc().
   - Unregister SoC bus on early device registration failure.
   - Remove unused DMA_FENCE_TRACE Kconfig symbol.
   - Fix /sys/module path in comment.
   - Refactor ISA bus init to remove nested blocks.
   - Remove redundant nodemask clears in numa_init().
   - Add kernel-doc for fwnode_operations and sys_soc.h, mark
     internal property data as private for kernel-doc, and add
     property.h/fwnode.h to driver-api infrastructure docs.
   - Add MAINTAINERS entry for sys_soc.h"

* tag 'driver-core-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/driver-core/driver-core: (129 commits)
  rust: pci: expose the allocated interrupt type
  PCI: Add pci_irq_type() to query the allocated interrupt type
  rust: pci: remove request_irq() and request_threaded_irq() from Device
  rust: pci: resolve IRQ in index() and embed IrqRequest in IrqVector
  rust: pci: convert IrqVectorRegistration to a lifetime-managed owning type
  kernfs: avoid iattr allocation in listxattr
  rust: serdev: use ThisModule::as_ptr() instead of field access
  ACPI/IORT: use platform_device_set_fwnode()
  ACPI/APMT: use platform_device_set_fwnode()
  firmware_loader: do not queue completed sysfs fallback requests
  rust: pci: Mark Device refcount methods inline
  rust: irq: make Registration compatible with lifetime-bound drivers
  rust: net/phy: remove expansion from doc
  rust: dma: return zero for Coherent reads past EOF
  rust: io: register: use path fragment for alias destination
  rust: io: register: remove unused rule arguments
  rust: io: register: dispatch shortcut rules internally
  MAINTAINERS: add sys_soc.h to DRIVER CORE
  rust: debugfs: remove unsafe blocks from traits impl for Vec
  rust: debugfs: migrate debugfs traits requirements to zerocopy
  ...
 2026-08-19 10:42:18 -07:00
Linus Torvalds
7711f4417f gpio updates for v7.3-rc1 
GPIO core:
 - extend the gpio-regmap abstraction layer with more features allowing users
   to override configuration setting, translate register values and masks and
   enable/disable interrupts
 - extend GPIO kunit tests with suites verifying probe ordering by software
   node devlink support and software node hogs
 - shrink GPIO kunit initialization code
 - coding style updates (remove commas from sentinels where applicable)
 - with all users now converted treewide to using real firmware node links for
   software node GPIO lookup: remove the deprecated label-matching mechanism
   from from GPIO core
 - drop redundant return value check of nonseekable_open() in gpiolib-cdev
 - use IRQ trigger helpers where applicable
 
 Driver updates:
 - refactor error paths and logging in gpio-nomadik
 - use more modern interfaces for getting resources in gpio-rockchip,
   gpio-bt8xx and gpio-pca9570
 - add missing MODULE_DEVICE_TABLE() to gpio-sifive and gpio-vf610
 - drop unused FILONOFF macro from gpio-rcar
 - extend build coverage of ioport GPIO drivers with COMPILE_TEST=y
 - only enable the gpio-rtd driver by default with ARCH_REALTEK=y to avoid
   bloating the build
 - refactor coding style in several drivers
 - use correct endianess translation in gpio-pcf85x
 - add wake-up interrupt support to gpio-mvebu
 - apply initial value in direction output setter in gpio-by-pinctrl
 
 Misc:
 - replace linux/gpio.h inclusions treewide with linux/gpio/legacy.h which now
   exports all the deprecated APIs
 - select GPIOLIB_LEGACY in Kconfig where required treewide
 - use software nodes for gpio-keys in MFD drivers
 
 Devicetree bindings:
 - describe the realtek rtd1625 GPIO controller
 - document new models for gpio-pca95xx and gpio-cadence
 - document new property in gpio-rockchip
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Merge tag 'gpio-updates-for-v7.3-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux

Pull gpio updates from Bartosz Golaszewski:
 "GPIO core:
   - extend the gpio-regmap abstraction layer with more features
     allowing users to override configuration setting, translate
     register values and masks and enable/disable interrupts
   - extend GPIO kunit tests with suites verifying probe ordering by
     software node devlink support and software node hogs
   - shrink GPIO kunit initialization code
   - coding style updates (remove commas from sentinels where
     applicable)
   - with all users now converted treewide to using real firmware node
     links for software node GPIO lookup: remove the deprecated
     label-matching mechanism from from GPIO core
   - drop redundant return value check of nonseekable_open() in
     gpiolib-cdev
   - use IRQ trigger helpers where applicable

  Driver updates:
   - refactor error paths and logging in gpio-nomadik
   - use more modern interfaces for getting resources in gpio-rockchip,
     gpio-bt8xx and gpio-pca9570
   - add missing MODULE_DEVICE_TABLE() to gpio-sifive and gpio-vf610
   - drop unused FILONOFF macro from gpio-rcar
   - extend build coverage of ioport GPIO drivers with COMPILE_TEST=y
   - only enable the gpio-rtd driver by default with ARCH_REALTEK=y to
     avoid bloating the build
   - refactor coding style in several drivers
   - use correct endianess translation in gpio-pcf85x
   - add wake-up interrupt support to gpio-mvebu
   - apply initial value in direction output setter in gpio-by-pinctrl

  Misc:
   - replace linux/gpio.h inclusions treewide with linux/gpio/legacy.h
     which now exports all the deprecated APIs
   - select GPIOLIB_LEGACY in Kconfig where required treewide
   - use software nodes for gpio-keys in MFD drivers

  Devicetree bindings:
   - describe the realtek rtd1625 GPIO controller
   - document new models for gpio-pca95xx and gpio-cadence
   - document new property in gpio-rockchip"

* tag 'gpio-updates-for-v7.3-rc1-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/brgl/linux: (61 commits)
  gpio: gpio-by-pinctrl: Apply initial value in direction output wrapper
  dt-bindings: gpio: rockchip,gpio-bank: Add rockchip,grf property
  gpio: Use IRQ trigger mask helpers
  gpio: allow COMPILE_TEST for IOPORT drivers
  gpio: realtek: Add driver for Realtek DHC RTD1625 SoC
  gpio: regmap: Add IRQ enable/disable helpers
  gpio: regmap: Add set_config callback
  gpio: regmap: Add value_xlate callback
  gpio: regmap: Add gpio_regmap_operation to extend reg_mask_xlate callback
  gpio: regmap: Order kernel-doc descriptions with the actual appearance
  gpio: regmap: Apply default resource callbacks for regmap IRQ chip
  gpio: regmap: Provide default IRQ resource request and release callbacks
  Revert "gpio: realtek: Add driver for Realtek DHC RTD1625 SoC"
  gpib: gpio: replace linux/gpio.h inclusion
  Input: matrix_keyboard - replace linux/gpio.h inclusion
  phy: replace linux/gpio.h inclusions
  pcmcia: replace linux/gpio.h inclusions
  ASoC: replace linux/gpio.h inclusions
  mfd: replace linux/gpio.h inclusions
  sh: replace linux/gpio.h inclusions
  ...
 2026-08-19 09:10:07 -07:00
Linus Torvalds
bd5f485f3f soc: Arm platform updates for 7.3 
The 32-bit Arm platforms are a bit more interesting this time: I refreshed
 an earlier series to mark code as deprecated that does have the tendency
 of getting in the way of cleanups and new features but has close to zero
 users. Among these are:
 
  - 22 of the remaining 28 legacy board files that predate the current
    devicetree based descriptions, using old chips from Intel and Marvell.
    The remaining six board files are for TI OMAP1 and Samsung s3c64xx
    chips and all still have known users.
 
  - support for Cortex-M3/M4/M7 and ARM1136r0 CPU cores and the 25
    machines based on these. These all use devicetree but the CPU
    support causes disproportional work. Most of them are just
    reference boards, the notable exceptions being the Nokia N800/N810
    tablet and the Buglabs BUG platform.
 
  - be8, be32, oabi and iwmmxt userspace binaries, which were mostly
    associated with the platforms now scheduled for removal and
    are increasingly problematic to support with modern toolchains.
 
 Nothing is actually removed at this point, to ensure that any remaining
 users continue to have the 7.3-LTS for a while longer. Patches for
 removal are currently being tested.
 
 Other updates include a continued work to convert GPIO number based
 interfaces to descriptors, a patch to restore little-endian mode
 on the one Arm platform (ixp4xx) that only worked in big-endian mode
 recently, and some minor cleanups and bugfixes.
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Merge tag 'soc-arm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull ARM SoC platform updates from Arnd Bergmann:
 "The 32-bit Arm platforms are a bit more interesting this time: I
  refreshed an earlier series to mark code as deprecated that does have
  the tendency of getting in the way of cleanups and new features but
  has close to zero users. Among these are:

   - 22 of the remaining 28 legacy board files that predate the current
     devicetree based descriptions, using old chips from Intel and
     Marvell. The remaining six board files are for TI OMAP1 and Samsung
     s3c64xx chips and all still have known users.

   - support for Cortex-M3/M4/M7 and ARM1136r0 CPU cores and the 25
     machines based on these. These all use devicetree but the CPU
     support causes disproportional work. Most of them are just
     reference boards, the notable exceptions being the Nokia N800/N810
     tablet and the Buglabs BUG platform.

   - be8, be32, oabi and iwmmxt userspace binaries, which were mostly
     associated with the platforms now scheduled for removal and are
     increasingly problematic to support with modern toolchains.

  Nothing is actually removed at this point, to ensure that any
  remaining users continue to have the 7.3-LTS for a while longer.
  Patches for removal are currently being tested.

  Other updates include a continued work to convert GPIO number based
  interfaces to descriptors, a patch to restore little-endian mode on
  the one Arm platform (ixp4xx) that only worked in big-endian mode
  recently, and some minor cleanups and bugfixes"

* tag 'soc-arm-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (41 commits)
  MAINTAINERS: Drop redundant lists from various Samsung entries
  ARM: tegra: Replace __ASSEMBLY__ with __ASSEMBLER__
  ARM: tegra: Fix OF node reference leaks in IRQ init
  ARM: lpc32xx: remove a few manually populated OF devices
  ARM: lpc32xx: only run SoC init on LPC32xx hardware
  firmware: imx: scu: manage mailbox channels and global handle
  ARM: sa1100: h3xxx: convert gpio-keys to use software nodes
  ARM: sa1100: collie: convert gpio-keys to use software nodes
  ARM: sa1100: assabet: convert gpio-keys to use software nodes
  gpio: sa1100: register software node for GPIO controller
  ARM: ixp4xx: Relax endianness
  ARM: replace linux/gpio.h inclusions
  soc: imx9: devm_kasprintf error handling
  ARM: mark mv78xx0 support as deprecated
  ARM: mark axxia platform as deprecated
  ARM: mark Cortex-M3/M4/M7 based boards as deprecated
  ARM: mark footbridge as deprecated
  ARM: mark RiscPC as deprecated
  ARM: mark mach-sa1100 as deprecated
  ARM: orion5x: mark all board files as deprecated
  ...
 2026-08-18 19:50:40 -07:00
Linus Torvalds
6eb1ea5ff4 soc: defconfig updates for 7.3 
Just the usual updates to the main defconfig files as well as the omap2
 specific one, to enable more loadable modules for better default
 hardware support.
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Merge tag 'soc-defconfig-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC defconfig updates from Arnd Bergmann:
 "Just the usual updates to the main defconfig files as well as the
  omap2 specific one, to enable more loadable modules for better default
  hardware support"

* tag 'soc-defconfig-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc:
  riscv: defconfig: thead: enable PCA953X GPIO driver
  arm64: defconfig: Enable drivers for BeagleBadge
  arm64: defconfig: Enable Qualcomm BAM-DMUX WWAN driver
  arm64: defconfig: Enable Sound DMIC driver
  arm: omap2plus_defconfig: Enable multi-LED
  arm64: defconfig: Enable Qualcomm reference device EC driver
  ARM: omap2plus_defconfig: enable things required by iwd
  arm: multi_v7_defconfig: Enable BRIDGE and DP83848_PHY for TI AM57xx, AM437x and AM335x
  arm64: defconfig: Enable Allwinner LRADC input driver
 2026-08-18 19:47:08 -07:00
Linus Torvalds
368cf60c36 soc: drivers for 7.3 
The SoC driver changes once more consist of many small fixes and
 cleanups, that are to a large part the result of automated testing. On
 platform specific drivers, this includes SoC specific code for xilinx,
 freescale/nxp, qualcomm, TI, aspeed, omap, tegra, samsung, rockchip,
 renesas, ixp4xx. In firmware drivers, we see a similar picture for
 SCMI and qcomtee.
 
 Aside from these, we see actual new hardware support in a few
 areas:
 
  - The Apple platform gets a new driver for low power states
 
  - Updates to Qualcomm platform drivers add several new
    hardware specific features and additional SoCs.
 
  - Amlogic SoC support for A1 and T7 is added
 
  - The Mediatek MMSYS driver is refactored as a cleanup.
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Merge tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC driver updates from Arnd Bergmann:
 "The SoC driver changes once more consist of many small fixes and
  cleanups, that are to a large part the result of automated testing.

  On platform specific drivers, this includes SoC specific code for
  xilinx, freescale/nxp, qualcomm, TI, aspeed, omap, tegra, samsung,
  rockchip, renesas, ixp4xx. In firmware drivers, we see a similar
  picture for SCMI and qcomtee.

  Aside from these, we see actual new hardware support in a few areas:

   - The Apple platform gets a new driver for low power states

   - Updates to Qualcomm platform drivers add several new hardware
     specific features and additional SoCs.

   - Amlogic SoC support for A1 and T7 is added

   - The Mediatek MMSYS driver is refactored as a cleanup"

* tag 'soc-drivers-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (157 commits)
  soc: qcom: make QCOM_PDR_MSG selectable
  soc: qcom: ubwc: Fix missing include
  soc: qcom: ubwc: Fix link error when QCOM_SMEM=n
  media: iris: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM
  drm/msm: Guard the QCOM_UBWC_CONFIG select with QCOM_SMEM
  dt-bindings: arm: qcom,ids: Add SoC ID for Snapdragon SDM 850
  firmware: xilinx: Clear firmware notifiers across kexec transitions
  firmware: xilinx: Release all peripheral devices from firmware
  firmware: xilinx: Add support to clear EL3 PM state
  firmware: xilinx: Propagate actual error from feature check
  firmware: xilinx: Use TF-A feature check for TF-A-specific APIs
  bus: fsl-mc: drop unused assignment of acpi_device_id::driver_data
  soc: fsl: qe: check platform_driver_register() in qe_ic_of_init()
  phy: lynx-10g: use RCW override procedure for dynamic protocol change
  soc: fsl: guts: implement the RCW override procedure
  dt-bindings: fsl: layerscape-dcfg: define DCFG_DCSR region
  soc: fsl: guts: make fsl_soc_data available after fsl_guts_init()
  soc: fsl: guts: make it easier to determine on which SoC we are running
  soc: fsl: guts: add a central fsl_guts_read() function
  soc: fsl: guts: add a global structure to hold state
  ...
 2026-08-18 19:40:29 -07:00
Linus Torvalds
cbe8aadf15 soc: devicetree updates for 7.3 
There are two new mystery SoCs with very little public information
 about them so far, Qualcomm's Cortex-A78C based "Shikra" and
 Altera's Cortex-A720 based Agilex72 SOCFPGA.
 
 We have also gained support for a couple of SoCs from the
 2023/2024 timeframe that have been in the making for a while:
 
  - The Apple platform gains support for M3 Pro, Max and Ultra SoC,
    following the basic M3 support from 7.2.
 
  - Samsung Exynos 1580 is a high-end mobile phone SoC from 2024
 
  - Canaan K230 is a RISC-V based 64-bit AI SoC, based on the
    earlier K210 chip
 
  - Sophgo SG2000 is a mixed Arm/RISC-V chip that was already
    supported using the Arm core but is now also added for RISC-V
    along with several other variants of the cv18xx series
 
 In terms of newly added machines we have reference platforms
 for all the chips above, plus
 
  - only four 32-bit Arm boards: two older phones and two
    older industrial/embedded boards; using Allwinner, Qualcomm and
    Rockchip SoCs
 
  - Three laptops und three phones using Qualcomm SoCs
 
  - Ten 64-bit Rockchips based single-board computers, along with one
  NAS box and a game console.
 
  - Seven industrial/embedded boards and modules using NXP i.MX8/9 SoCs.
 
  - A Lenovo desktop box based on NVIDIA Jetson Xavier NX
 
  - A few more single-board computers based on Allwinnner A133,
    Spacemit K1 and TI AM62.
 
 As usual, there is a constant stream of minor cleanups and fixes
 towards addressing the 'dt-check-style --mode strict' warnings,
 and everyone is expected to address those warnings for new
 submissions now.
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Merge tag 'soc-dt-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

Pull SoC devicetree updates from Arnd Bergmann:
 "There are two new mystery SoCs with very little public information
  about them so far, Qualcomm's Cortex-A78C based "Shikra" and Altera's
  Cortex-A720 based Agilex72 SOCFPGA.

  We have also gained support for a couple of SoCs from the 2023/2024
  timeframe that have been in the making for a while:

   - The Apple platform gains support for M3 Pro, Max and Ultra SoC,
     following the basic M3 support from 7.2.

   - Samsung Exynos 1580 is a high-end mobile phone SoC from 2024

   - Canaan K230 is a RISC-V based 64-bit AI SoC, based on the earlier
     K210 chip

   - Sophgo SG2000 is a mixed Arm/RISC-V chip that was already supported
     using the Arm core but is now also added for RISC-V along with
     several other variants of the cv18xx series

  In terms of newly added machines we have reference platforms for all
  the chips above, plus

   - Only four 32-bit Arm boards: two older phones and two older
     industrial/embedded boards; using Allwinner, Qualcomm and Rockchip
     SoCs

   - Three laptops und three phones using Qualcomm SoCs

   - Ten 64-bit Rockchips based single-board computers, along with one
     NAS box and a game console.

   - Seven industrial/embedded boards and modules using NXP i.MX8/9
     SoCs.

   - A Lenovo desktop box based on NVIDIA Jetson Xavier NX

   - A few more single-board computers based on Allwinnner A133,
     Spacemit K1 and TI AM62.

  As usual, there is a constant stream of minor cleanups and fixes
  towards addressing the 'dt-check-style --mode strict' warnings, and
  everyone is expected to address those warnings for new submissions
  now"

* tag 'soc-dt-7.3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (864 commits)
  Revert "riscv: dts: spacemit: k3: add i2s0-i2s5 nodes"
  Documentation/process: maintainer-soc: Mention expectation about dt-check-style
  ARM: dts: helios4: add SATA regulator supplies
  ARM: dts: helios4: add vcc-supply to GPIO expander
  ARM: dts: helios4: add vcc-supply to EEPROM
  arm64: dts: turris-mox: fix usb3 phys
  arm64: dts: ti: Correct white-space style
  arm64: dts: ti: k3-am64: Fix MDIO clock reference for ICSSG0 node
  arm64: dts: qcom: talos-evk: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sa8155p-adp: Fix swapped USB and UFS QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: eliza-mtp: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: lemans: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: glymur: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: kaanapali: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sar2130p: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sm8750: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sm8650: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: purwa: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: hamoa: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  arm64: dts: qcom: sc8180x: Fix swapped USB QMP PHY vdda-phy/vdda-pll supplies
  ...
 2026-08-18 19:36:32 -07:00
Linus Torvalds
ca58a3dde6 alpha updates for v7.3 
- alpha: read $gp and $sp explicitly for clang
 - alpha: pass -Wa,-mev6 only when using GNU as
 - alpha: annotate hardirqs-off on IPL 7 interrupt entry
 - alpha: run the remote RTC access in a worker, not an IPI callback
 - alpha: don't leak hardware-fabricated FP exception bits to user space
 - alpha: fix ieee_swcr_to_fpcr setting FPCR_DNOD unconditionally
 - alpha: enable lockdep hardirq state tracking
 - alpha: use raw spinlocks for low-level platform locks
 - alpha: provide ftrace return address support for lockdep
 - alpha: make irqflags helpers operate on IPL state
 - alpha: add ARCH_STACKWALK-based stacktrace support
 - alpha: enable regset-based ptrace and core dumps
 - alpha: marvel: Fix lock ordering in init_io7_irqs()
 - alpha: marvel: Fix irq_set_status_flags to use correct IRQ number
 - alpha: remove unnecessary architecture-specific <asm/device.h>
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Merge tag 'alpha-for-v7.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha

Pull alpha updates from Magnus Lindholm:
 "This contains two fixes for Alpha floating-point exception handling,
  two clang-related fixes, the preparatory changes from the
  generic-entry series, an interrupt-entry lockdep fix, two Marvel/EV7
  IRQ fixes, an RTC fix, and one header cleanup.

  The generic-entry preparation adds regset-based ptrace and core dumps,
  ARCH_STACKWALK and lockdep hardirq-state tracking. These changes are
  useful independently and enable previously missing debugging
  facilities on Alpha.

  The final patch switching Alpha to GENERIC_ENTRY is intentionally not
  included in this pull request. I am deferring that change to allow
  further testing and to reduce the risk of conflicts with ongoing
  entry-path work elsewhere in the kernel"

* tag 'alpha-for-v7.3-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/lindholm/alpha:
  alpha: read $gp and $sp explicitly for clang
  alpha: pass -Wa,-mev6 only when using GNU as
  alpha: annotate hardirqs-off on IPL 7 interrupt entry
  alpha: run the remote RTC access in a worker, not an IPI callback
  alpha: don't leak hardware-fabricated FP exception bits to user space
  alpha: fix ieee_swcr_to_fpcr setting FPCR_DNOD unconditionally
  alpha: enable lockdep hardirq state tracking
  alpha: use raw spinlocks for low-level platform locks
  alpha: provide ftrace return address support for lockdep
  alpha: make irqflags helpers operate on IPL state
  alpha: add ARCH_STACKWALK-based stacktrace support
  alpha: enable regset-based ptrace and core dumps
  alpha: marvel: Fix lock ordering in init_io7_irqs()
  alpha: marvel: Fix irq_set_status_flags to use correct IRQ number
  alpha: remove unnecessary architecture-specific <asm/device.h>
 2026-08-18 19:33:32 -07:00
Linus Torvalds
d10e148b27 csky 7.3 Release Notes 
- Fix a4/a5 restoration in syscall trace path
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Merge tag 'csky-for-linus-7.3' of https://github.com/c-sky/csky-linux

Pull csky update from Guo Ren:

 - Fix a4/a5 restoration in syscall trace path

* tag 'csky-for-linus-7.3' of https://github.com/c-sky/csky-linux:
  csky: Fix a4/a5 restoration in syscall trace path
 2026-08-18 19:32:34 -07:00
Linus Torvalds
5808ac1889 - Get rid of static_cpu_has() - one less API to care about testing CPU 
features
 
 - Unify the handling of CPU core types (performance, efficient, etc) by
   mapping the vendor-specific types to Linux ones
 
 - Continuation of the work of Ahmed Darwish to centralize CPUID leafs
   representation
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Merge tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cpuid updates from Borislav Petkov:

 - Get rid of static_cpu_has() - one less API to care about testing CPU
   features

 - Unify the handling of CPU core types (performance, efficient, etc) by
   mapping the vendor-specific types to Linux ones

 - Continuation of the work of Ahmed Darwish to centralize CPUID leaf
   representation

* tag 'x86_cpu_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/CPU: Rename struct cpuid_read_output to struct cpuid_output
  x86/cpu/scattered: Sort it properly
  x86/cpu: Use parsed CPUID(0x1)
  x86/lib: Add CPUID(0x1) family and model calculation
  x86/cpu: Use parsed CPUID(0x0)
  x86/cpu/transmeta: Rescan CPUID(0x1) after modifying capabilities
  x86/topology: Add TOPO_CPU_TYPE_LOW_POWER
  x86/topology: Name the AMD core-type values
  x86/topo: Map vendor CPU types to generic Linux such types
  x86/bugs: Don't use cpu-type matching in cpu_vuln_blacklist
  x86/cpu: Hide and rename static_cpu_has()
 2026-08-18 19:09:42 -07:00
Linus Torvalds
bbd0571269 - The usual pile of smallish cleanups and fixlets all over the place 
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Merge tag 'x86_cleanups_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 cleanups from Borislav Petkov:

 - The usual pile of smallish cleanups and fixlets all over the place

* tag 'x86_cleanups_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/cpu: Remove unnecessary __maybe_unused annotations
  x86/msr: Document the I/O-like write semantics in the msr driver
  x86/apic: Ensure ICR register write value is handled as 32 bits
  x86/boot/compressed/head_64.S: Clean up SEV-related comments
  Documentation/arch/x86/amd-memory-encryption.rst: Fix typo
  x86/platform/quark: Fix kernel-doc warnings in imr.c
  x86/ras: Move contents from arch/x86/ras/Kconfig into drivers/ras/Kconfig
  x86/cpu: Move intel_get_platform_id() to cpu/intel.c
  x86/mm: Fix typo in comment
  x86/fpu: Fix kernel-doc formatting above fpu_enable_guest_xfd_features()
  x86/cfi: Use symmetric SYM_START and SYM_END in __CFI_TYPE()
  x86/cfi: Add __init_or_module annotations for fineibt
 2026-08-18 18:34:58 -07:00
Linus Torvalds
94845e2929 - How refreshing: no new features but a whole pile of fixes to more or less 
serious issues reported by Sashiko along with miscellaneous cleanups all
   over the place. All except one by Reinette Chatre, the one by Tony Luck
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Merge tag 'x86_cache_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 resource control updates from Borislav Petkov:

 - How refreshing: no new features but a whole pile of fixes to more or
   less serious issues reported by Sashiko along with miscellaneous
   cleanups all over the place. All except one by Reinette Chatre, the
   one by Tony Luck.

* tag 'x86_cache_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  fs/resctrl: Inform user space when status buffer overflowed
  fs/resctrl: Communicate resource group deleted error via last_cmd_status
  fs/resctrl: Add last_cmd_status support for writes to max_threshold_occupancy
  fs/resctrl: Change last_cmd_status custom during input parsing
  fs/resctrl: Use accurate and symmetric exit flows
  fs/resctrl: Pass error reading event through to user space
  fs/resctrl: Use accurate type for rdt_resource::rid
  fs/resctrl: Change pattern used to track number of entries in enum resctrl_conf_type
  x86/resctrl: Protect against bad shift
  fs/resctrl: Use correct format specifier for printing error pointers
  fs/resctrl: Fix UAF from worker threads when domains are removed
  x86/resctrl: Ensure domain fully initialized before placed on RCU list
  fs/resctrl: Prevent deadlock and use-after-free in info file handlers
  fs/resctrl: Prevent use-after-free in rdtgroup_kn_put()
  fs/resctrl: Fix deadlock on errors during mount
  fs/resctrl: Move functions to avoid forward references in subsequent fixes
  x86,fs/resctrl: Document safe RCU list traversal
 2026-08-18 18:32:24 -07:00
Linus Torvalds
ccb9331e13 - Remove the smp_locks alternatives machinery which was used to patch out lock 
prefixes when running a SMP kernel on a uniprocessor machine
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Merge tag 'x86_alternatives_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 alternatives update from Borislav Petkov:

 - Remove the smp_locks alternatives machinery which was used to patch
   out lock prefixes when running a SMP kernel on a uniprocessor machine

* tag 'x86_alternatives_for_v7.3_rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/alternative: Drop smp_locks glue
 2026-08-18 18:11:25 -07:00
Linus Torvalds
b126f6f594 * Fix pkey_alloc() return value when pkeys are not supported 
* Allow preemption during IPI completion waiting to improve wakeup latency
  * Convert more x86 page table code to ptdescs
  * Fixes and cleanups for set_memory*() locking, mostly around large pages
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Merge tag 'x86_mm_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 mm updates from Dave Hansen:
 "There are two things in here of note. First, there are fixes to reduce
  the time that the TLB flushing code sits around with interrupts
  disabled. It should be well tested, but it's certainly something to
  keep an eye on.

  Second is a little back-and-forth in the interactions between the
  set_memory*() locking and DEBUG_PAGEALLOC. There was a slightly
  painful re-discovery of why DEBUG_PAGEALLOC has special locking rules,
  but the code did end up better for it.

  Summary:

   - Fix pkey_alloc() return value when pkeys are not supported

   - Allow preemption during IPI completion waiting to improve wakeup
     latency

   - Convert more x86 page table code to ptdescs

   - Fixes and cleanups for set_memory*() locking, mostly around large
     pages"

* tag 'x86_mm_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/pkeys: Fix pkey_alloc() return value when pkeys are not supported
  x86/mm: Fix and document DEBUG_PAGEALLOC
  x86/mm: Use guard() for pgd_lock
  x86/mm: Use guard() in cpa_collapse_large_pages()
  x86/mm: Re-enable preemption before flush_tlb_multi()
  x86/kvm: Disable preemption in kvm_flush_tlb_multi()
  x86/mm: Move flush_tlb_info back to the stack
  x86/mm: Cap flush_tlb_info alignment at 64 bytes
  x86/mm: Factor out flush_tlb_info initialization
  x86/mm/pat: Take cpa_lock around large-page collapse
  x86/mm/pat: Don't gate cpa_lock on debug_pagealloc_enabled()
  x86/xen: Convert xen_mm_unpin_all() to ptdescs
  x86/xen: Convert xen_mm_pin_all() to ptdescs
  x86/mm: Convert pgd_page_get_mm() to ptdescs
  x86/mm: Convert sync_global_pgds_l4() to ptdescs
  x86/mm: Convert sync_global_pgds_l5() to ptdescs
  x86/mm: Convert arch_sync_kernel_mappings() to ptdescs
  x86/mm/pat: Convert collapse_pmd_page() to ptdescs
  x86/mm/pat: Convert __set_pmd_pte() to ptdescs
  x86/mm/pat: Use IS_ENABLED() instead of ifdef
 2026-08-18 17:44:09 -07:00
Linus Torvalds
2385c8b47b * Fix TDX port I/O bugs 
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Merge tag 'x86_tdx_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 TDX updates from Dave Hansen:
 "TDX guests cause #VE exceptions whenever they do port I/O. The guest
  then does some instruction decoding and makes a call up to the host
  for help. That decoding had a couple of bugs.

  Fix those bugs. Use an existing and now shared KVM helper for one of
  them"

* tag 'x86_tdx_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/tdx: Fix zero-extension for 32-bit port I/O
  x86/insn-eval: Move assign_register() out of KVM as insn_assign_reg()
  x86/tdx: Fix off-by-one in port I/O handling
 2026-08-18 17:41:36 -07:00
Linus Torvalds
058f2c4b75 * Document the intricacies of GS context switching 
* Remove old TODO message about Geode LED driver
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Merge tag 'x86_misc_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull misc x86 updates from Dave Hansen:
 "Just adding some documentation and removing a super stale comment
  about an LED driver that was moved long ago:

   - Document the intricacies of GS context switching

   - Remove old TODO message about Geode LED driver"

* tag 'x86_misc_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/platform/geode: Remove old TODO message about leds-net5501.c
  Documentation/x86: Document the intricacies of GS context switching
 2026-08-18 17:40:06 -07:00
Linus Torvalds
23eb790181 Fix frame pointer unwinder when it encounters FRED stack frames 
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Merge tag 'x86_entry_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 entry update from Dave Hansen:
 "Fix frame pointer unwinder when it encounters FRED stack frames"

* tag 'x86_entry_for_7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/entry/fred: Encode frame pointer on entry
 2026-08-18 17:38:30 -07:00
Linus Torvalds
104a813376 VDSO updates: 
- Consolidate the VDSO datastore further and provide support for
    mlock_all() and prefaulting.
 
  - Provide 32-bit legacy time related functionality only if
    CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists, but
    architecture code still exposes the legacy functionality even disabled.
 
    Clean this up by adding the missing guards and validating at build time
    that the VDSO is legacy free if disabled.
 
  - Consolidate the VDSO related config options in core and drivers, which
    removes some non-sensical dependencies and quite an amount of #ifdeffery.
 
  - Clean up the PAGE_SIZE definition maze
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Merge tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull VDSO updates from Thomas Gleixner:

 - Consolidate the VDSO datastore further and provide support for
   mlock_all() and prefaulting.

 - Provide 32-bit legacy time related functionality only if
   CONFIG_COMPAT_32BIT_TIME is enabled. The config switch exists,
   but architecture code still exposes the legacy functionality even
   disabled.

   Clean this up by adding the missing guards and validating at build
   time that the VDSO is legacy free if disabled.

 - Consolidate the VDSO related config options in core and drivers,
   which removes some non-sensical dependencies and quite an amount of
   #ifdeffery.

 - Clean up the PAGE_SIZE definition maze

* tag 'timers-vdso-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (30 commits)
  random: vDSO: Drop custom PAGE_SIZE definitions
  LoongArch: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  clocksource/drivers/timer-riscv: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  clocksource/drivers/arm_arch_timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  clocksource/drivers/mips-gic-timer: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  MIPS: csrc-r4k: Remove CONFIG_GENERIC_GETTIMEOFDAY ifdeffery
  vDSO: Make clockmode constants available without CONFIG_GENERIC_GETTIMEOFDAY
  kbuild: Support generated asm-headers in subdirectories
  vdso: Rename HAVE_GENERIC_VDSO to VDSO_DATASTORE
  vdso: Drop HAVE_GENERIC_VDSO from architecture kconfig files
  vdso: Automatically select HAVE_GENERIC_VDSO if necessary
  MIPS: vdso: Stop using CONFIG_HAVE_GENERIC_VDSO
  vdso: Remove the dependency on HAVE_GENERIC_VDSO from ARCH_HAS_VDSO_ARCH_DATA
  futex: Remove dependency on HAVE_GENERIC_VDSO from FUTEX_ROBUST_UNLOCK
  vdso/gettimeofday: Verify COMPAT_32BIT_TIME interactions
  sparc: vdso: Respect COMPAT_32BIT_TIME
  MIPS: VDSO: Respect COMPAT_32BIT_TIME
  powerpc/vdso: Respect COMPAT_32BIT_TIME
  ARM: VDSO: Respect COMPAT_32BIT_TIME
  arm64: vdso32: Respect COMPAT_32BIT_TIME
  ...
 2026-08-18 16:56:25 -07:00
Linus Torvalds
3b4128b9f3 Timers and timekeeping core updates: 
- 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 hardly 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
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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
030c9f813b Treewide timer related cleanups: 
- Remove the leftover CLOCK_TICK_RATE which has been scheduled for
     removal more than a decade ago along with some now empty asm/timex.h
     files.
 
   - Consolidate delay timer calibration
 
     The construct of having a define in a header requires that
     architectures provided asm/timex.h for no reason. Also the function
     name for reading the delay timer is confusing at best.
 
     Use a config switch to enable that functionality and rename the
     function to delay_read_timer() to make the purpose clear.
 
     This removes some more now empty asm/timex.h files as well.
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Merge tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull treewide timer related cleanups from Thomas Gleixner:

 - Remove the leftover CLOCK_TICK_RATE which has been scheduled for
   removal more than a decade ago along with some now empty asm/timex.h
   files.

 - Consolidate delay timer calibration

   The construct of having a define in a header requires that
   architectures provided asm/timex.h for no reason. Also the function
   name for reading the delay timer is confusing at best.

   Use a config switch to enable that functionality and rename the
   function to delay_read_timer() to make the purpose clear.

   This removes some more now empty asm/timex.h files as well.

* tag 'timers-cleanups-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  calibrate: Rework delay timer calibration
  treewide: Remove CLOCK_TICK_RATE
  x86: Use PIT_TICK_RATE instead of CLOCK_TICK_RATE
 2026-08-18 15:58:29 -07:00
Linus Torvalds
762fffa407 Generic interrupt subsystem updates: 
- Remove pointless NULL checks of the kstats_irqs field. That's a
    historical left over and not longer required.
 
  - Add Radu Rendec as reviewer. Radu thankfully stepped up to help
    reviewing the interrupt core and the related drivers code.
 
  - The usual small improvements and fixes
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Merge tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull generic interrupt subsystem updates from Thomas Gleixner:

 - Remove pointless NULL checks of the kstats_irqs field. That's a
   historical left over and not longer required.

 - Add Radu Rendec as reviewer. Radu thankfully stepped up to help
   reviewing the interrupt core and the related drivers code.

 - The usual small improvements and fixes

* tag 'irq-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  MAINTAINERS: Add Radu Rendec as reviewer for the interrupt subsystem
  genirq/msi: Move misplaced EXPORT_SYMBOL_GPL for msi_domain_free_irqs_all()
  parisc: Remove unnecessary NULL check of the kstat_irqs field
  genirq: Remove unnecessary NULL check of the kstat_irqs field
  irqdomain: Remove unnedded NULL check in __irq_domain_[de]activate_irq()
  genirq/manage: Use irqd_get_parent_data() helper in __irq_get_irqchip_state()
  irqdomain: Plug leak in irq_domain_alloc_irqs_locked() error path
 2026-08-18 15:19:50 -07:00
Linus Torvalds
3424d8c18a Generic entry code updates: 
- Make syscall user dispatching configurable
 
     Not all architectures can makes use of syscall user dispatching. Allow
     them to disable the feature completely.
 
   - Consolidate stack randomization for the generic entry code and the
     architectures using it.
 
     Stack randomization on syscall entry was sprinkled throughout the
     architecture specific low level entry code and in some cases at the
     wrong points, e.g. before establishing state, which violates the
     non-instrumentable constraints of that code.
 
     Clean this up by integrating stack randomization into the generic entry
     code helpers so that it is invoked at the earliest possible point right
     after establishing state and converting all generic entry code using
     architecture over.
 
   - Clean up the syscall number handling in the generic entry code. It
     works correctly for architectures which have a separate return value
     storage in pt_regs, but fails to distinguish the case where user space
     handed in -1 as syscall number from the case where the entry code
     rejects it by returning -1 to the callers. Aside of that the return
     value functionality of those interfaces is not really intuitive.
 
     Fix this by separating the decision to reject a syscall (user dispatch,
     ptrace, seccomp ...) from the potential modification of the syscall
     number through these mechanisms.
 
     This solves most of the problems for architectures which do not have a
     separate return value storage in pt_regs except for the case where a
     tracepoint has a BPF script or a probe attached which overwrite both
     the syscall number and the return value. But that's a problem which
     cannot be solved in the generic code, that only can be addressed by
     separating the storage model in the affected architectures.
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Merge tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull generic entry code updates from Thomas Gleixner:

 - Make syscall user dispatching configurable

   Not all architectures can makes use of syscall user dispatching.
   Allow them to disable the feature completely.

 - Consolidate stack randomization for the generic entry code and the
   architectures using it.

   Stack randomization on syscall entry was sprinkled throughout the
   architecture specific low level entry code and in some cases at the
   wrong points, e.g. before establishing state, which violates the
   non-instrumentable constraints of that code.

   Clean this up by integrating stack randomization into the generic
   entry code helpers so that it is invoked at the earliest possible
   point right after establishing state and converting all generic entry
   code using architecture over.

 - Clean up the syscall number handling in the generic entry code. It
   works correctly for architectures which have a separate return value
   storage in pt_regs, but fails to distinguish the case where user
   space handed in -1 as syscall number from the case where the entry
   code rejects it by returning -1 to the callers. Aside of that the
   return value functionality of those interfaces is not really
   intuitive.

   Fix this by separating the decision to reject a syscall (user
   dispatch, ptrace, seccomp ...) from the potential modification of the
   syscall number through these mechanisms.

   This solves most of the problems for architectures which do not have
   a separate return value storage in pt_regs except for the case where
   a tracepoint has a BPF script or a probe attached which overwrite
   both the syscall number and the return value. But that's a problem
   which cannot be solved in the generic code, that only can be
   addressed by separating the storage model in the affected
   architectures.

* tag 'core-entry-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (23 commits)
  entry, treewide: Make syscall_enter_from_user_mode[_work]() indicate syscall execution
  entry: Make return type of syscall_trace_enter() bool
  entry: Rework trace_syscall_enter()
  entry: Rework syscall_audit_enter()
  syscall_user_dispatch: Introduce ARCH_SUPPORTS_SYSCALL_USER_DISPATCH
  entry: Fix seccomp bypass after ptrace with TSYNC
  x86/entry: Simplify the syscall number logic
  x86/entry: Get rid of the sys_ni_syscall() indirection
  x86/entry: Make syscall functions static
  ptrace, treewide: Rename ptrace_report_syscall_entry() to ptrace_report_syscall_permit_entry()
  seccomp, treewide: Rename and convert __secure_computing() to return boolean
  entry: Use syscall number instead of rereading it
  entry: Remove syscall_enter_from_user_mode()
  x86/syscall: Use [syscall_]enter_from_user_mode_randomize_stack()
  s390/syscall: Use enter_from_user_mode_randomize_stack()
  riscv/syscall: Use syscall_enter_from_user_mode_randomize_stack()
  powerpc/syscall: Use syscall_enter_from_user_mode_randomize_stack()
  loongarch/syscall: Use syscall_enter_from_user_mode_randomize_stack()
  entry: Provide [syscall_]enter_from_user_mode_randomize_stack()
  randomize_kstack: Provide add_random_kstack_offset_irqsoff()
  ...
 2026-08-18 15:00:56 -07:00
Linus Torvalds
3a0dd7ba4f x86/documentation changes for v7.3: 
- Misc x86 documentation updates (Randy Dunlap, Daniel Gibson)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 documentation updates from Ingo Molnar:

 - Misc x86 documentation updates (Randy Dunlap, Daniel Gibson)

* tag 'x86-documentation-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  Documentation/arch/x86/amd-debugging: Add example for reset register
  x86/intel/quark: Clean up function kernel-doc
  x86/speculation: Drop Excess function parameter descriptions
  x86/lib: checksum_64.h: Eliminate all kernel-doc warnings
  x86/barrier: Use correct parameter names in kernel-doc
 2026-08-18 14:13:43 -07:00
Linus Torvalds
d5b550edad x86/core updates for v7.3: 
- Optimize the kcfi call sequence (Peter Zijlstra)
  - Use sfence for wmb() if SSE is available (Yao Zi)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 core updates from Ingo Molnar:

 - Optimize the kcfi call sequence (Peter Zijlstra)

 - Use sfence for wmb() if SSE is available (Yao Zi)

* tag 'x86-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/locking: Use sfence for wmb() if SSE is available
  x86/kcfi: Optimize call sequence
 2026-08-18 14:08:57 -07:00
Linus Torvalds
3dd1f7447f x86/build changes for v7.3: 
- Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 build update from Ingo Molnar:

 - Only align ENTRY_TEXT to PMD_SIZE if necessary (Hamza Mahfooz)

* tag 'x86-build-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/build: Only align ENTRY_TEXT to PMD_SIZE if necessary
 2026-08-18 14:06:52 -07:00
Linus Torvalds
09d639f1f1 x86/boot changes for v7.3: 
- Misc simplifications and cleanups (Thorsten Blum)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 boot updates from Ingo Molnar:

 - Misc simplifications and cleanups (Thorsten Blum)

* tag 'x86-boot-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip:
  x86/boot: Use bool and IS_ENABLED() to simplify query_edd()
  x86/boot: Use IS_ENABLED() to simplify built-in-or-module checks
  x86/purgatory: Return bool from verify_sha256_digest()
 2026-08-18 14:04:48 -07:00
Linus Torvalds
8dcef8882a x86/msr updates for v7.3: 
- Streamline the x86 MSR handling APIs along the 64-bit
    variants, simplifying the interfaces. Removal of the
    old APIs is planned for the next cycle, to reduce
    churn & integration pain. (Juergen Gross)
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull x86 MSR updates from Ingo Molnar:

 - Streamline the x86 MSR handling APIs along the 64-bit variants,
   simplifying the interfaces.

   Removal of the old APIs is planned for the next cycle, to reduce
   churn & integration pain (Juergen Gross)

* tag 'x86-msr-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (21 commits)
  x86/mce: Work around build warning after MSR-interface switch
  cpufreq: Stop using 32-bit MSR interfaces
  x86/featctl: Stop using 32-bit MSR interfaces
  KVM/x86: Stop using 32-bit MSR interfaces
  x86/mtrr: Stop using 32-bit MSR interfaces
  acpi: Stop using 32-bit MSR interfaces
  powercap: Stop using 32-bit MSR interfaces
  thermal/intel: Stop using 32-bit MSR interfaces
  x86/olpc: Stop using 32-bit MSR interfaces
  x86/hyperv: Stop using 32-bit MSR interfaces
  hwmon: Stop using 32-bit MSR interfaces
  EDAC: Stop using 32-bit MSR interfaces
  x86/cpu: Stop using 32-bit MSR interfaces
  x86/apic: Stop using 32-bit MSR interfaces
  x86/resctrl: Stop using 32-bit MSR interfaces
  x86/tsc: Stop using 32-bit MSR interfaces
  x86/amd: Stop using 32-bit MSR interfaces
  x86/pci: Stop using 32-bit MSR interfaces
  x86/hygon: Stop using 32-bit MSR interfaces
  x86/mce: Stop using 32-bit MSR interfaces
  ...
 2026-08-18 14:02:15 -07:00
Linus Torvalds
dfa35434d7 Locking updates for v7.3: 
Futexes:
 
  - Use runtime constants for futex_hash computation
    (K Prateek Nayak, Peter Zijlstra)
 
  - Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)
 
  - Avoid private hash use-after-free on final put (Felix Hoffmann)
 
  - Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)
 
 Rust integration updates:
 
  - Implement refcounted interrupt disable and SpinLockIrq for Rust
    (Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)
 
  - Rust sync: add helpers for mb, dma_mb and friends;
    add generic memory barriers and use LKMM atomics
    instead of Rust atomics in the revocable code (Gary Guo)
 
  - Add abstraction and integrate synchronize_rcu() (Philipp Stanner)
 
 Lock debugging:
 
  - Add qspinlock contended_release tracepoint
    (Dmitry Ilvokhin, Peter Zijlstra)
 
  - Enable the printing of held locks of remote running tasks and print
    task CPU (Ingo Molnar)
 
  - percpu-rwsem: Annotate intentional data race in readers_active_check()
    (Sun Shaojie)
 
 Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
 Naveen Kumar Chaudhary and Thomas Huth.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull locking updates from Ingo Molnar:
 "Futexes:

   - Use runtime constants for futex_hash computation (K Prateek Nayak,
     Peter Zijlstra)

   - Optimise the size check get_futex_key() (Sebastian Andrzej Siewior)

   - Avoid private hash use-after-free on final put (Felix Hoffmann)

   - Tell kmemleak we're not leaking __futex_queues (Peter Zijlstra)

  Rust integration updates:

   - Implement refcounted interrupt disable and SpinLockIrq for Rust
     (Boqun Feng, Heiko Carstens, Joel Fernandes, Lyude Paul)

   - Rust sync: add helpers for mb, dma_mb and friends; add generic
     memory barriers and use LKMM atomics instead of Rust atomics in the
     revocable code (Gary Guo)

   - Add abstraction and integrate synchronize_rcu() (Philipp Stanner)

  Lock debugging:

   - Add qspinlock contended_release tracepoint (Dmitry Ilvokhin, Peter
     Zijlstra)

   - Enable the printing of held locks of remote running tasks and print
     task CPU (Ingo Molnar)

   - percpu-rwsem: Annotate intentional data race in readers_active_check()
     (Sun Shaojie)

  Misc fixes and updates by Boqun Feng, Peter Zijlstra, Fangrui Song,
  Naveen Kumar Chaudhary and Thomas Huth"

* tag 'locking-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (44 commits)
  rust: sync: Introduce SpinLockIrq::lock_with() and friends
  rust: sync: Add SpinLockIrq
  rust: sync: Use super::* in spinlock.rs
  rust: helper: Add spin_{un,}lock_irq_{enable,disable}() helpers
  rust: Introduce interrupt module
  s390/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
  arm64: sched/preempt: Enable HAS_SEPARATE_PREEMPT_RESCHED_BITS
  preempt: Introduce HAS_SEPARATE_PREEMPT_RESCHED_BITS
  sched: Avoid signed comparison of preempt_count() in __cant_migrate()
  sched: Remove the unused preempt_offset parameter of __cant_sleep()
  locking: Switch to _irq_{disable,enable}() variants in cleanup guards
  irq: Add KUnit test for refcounted interrupt enable/disable
  irq,spin_lock: Add counted interrupt disabling/enabling
  openrisc: Include <linux/cpumask.h> in smp.h
  preempt: Introduce __preempt_count_{sub,add}_return()
  preempt: Introduce HARDIRQ_DISABLE_BITS
  preempt: Track NMI nesting to separate per-CPU counter
  futex: Tell kmemleak we're not leaking __futex_queues
  x86/paravirt: Trace contended_release on unlock
  tracing/lock: Use TRACE_EVENT_FN() for contended_release
  ...
 2026-08-18 13:07:17 -07:00
Linus Torvalds
8915457146 Performance events updates for v7.3: 
uprobes updates:
 
  - Patch series to fix a category of bugs with optimized uprobes that
    can clobber the redzone area with call instruction storing return
    address on stack where user code may keep temporary data without
    adjusting RSP. Fix this by moving the optimized uprobes on top of
    10-bytes NOP instruction, so we can squeeze another instruction to
    escape the redzone area before doing the call.
    (Jiri Olsa, Andrii Nakryiko)
 
  - Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
    (Puranjay Mohan)
 
 Intel CPU PMU driver updates:
 
  - Optimize ACR handling in match_prev_assignment() (Dapeng Mi)
  - Patch series to fix various PMU driver bugs and data leaks (Dapeng Mi)
  - Fix Intel PT stop/start with no update (Adrian Hunter)
 
 Intel uncore PMU driver updates:
 
  - Series to fix various uncore PMU setup robustness bugs (Zide Chen)
 
 AMD uncore PMU driver updates:
 
  - Add group validation (Sandipan Das)
 
 Misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen.
 
 Signed-off-by: Ingo Molnar <mingo@kernel.org>
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Merge tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Pull performance events updates from Ingo Molnar:
 "uprobes updates:

   - Fix a category of bugs with optimized uprobes that can clobber the
     redzone area with call instruction storing return address on stack
     where user code may keep temporary data without adjusting RSP.

     Fix this by moving the optimized uprobes on top of 10-bytes NOP
     instruction, so we can squeeze another instruction to escape the
     redzone area before doing the call (Jiri Olsa, Andrii Nakryiko)

   - Switch uretprobes_srcu to SRCU-fast-updown, to improve performance
     (Puranjay Mohan)

  Intel CPU PMU driver updates:

   - Optimize ACR handling in match_prev_assignment() (Dapeng Mi)

   - Fix various PMU driver bugs and data leaks (Dapeng Mi)

   - Fix Intel PT stop/start with no update (Adrian Hunter)

  Intel uncore PMU driver updates:

   - Fix various uncore PMU setup robustness bugs (Zide Chen)

  AMD uncore PMU driver updates:

   - Add group validation (Sandipan Das)

  .. and misc fixes and updates by Dapeng Mi, Randy Dunlap and Zide Chen"

* tag 'perf-core-2026-08-17' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (42 commits)
  perf/x86: Optimize ACR handling in match_prev_assignment()
  perf/x86/intel: Fix intel_cap handling on hybrid PMUs
  perf/x86: Remove stale fixed counter helper and fix hybrid PMU access
  perf/x86/intel: Unwind cpuc state if PEBS buffer setup fails
  perf/x86: Guard intel_pmu_cpu_dead() against invalid hybrid PMU casts
  perf/x86: Free hybrid state on PMU init failure
  perf/x86: Unregister PMI handler on PMU init failure
  perf/x86/intel/pt: Fix stop/start with no update
  perf/x86/intel/pt: Use bitwise access for PERF_HES_STOPPED
  perf/x86/intel/pt: Factor out pt_config_enable()
  uprobes: Switch uretprobes_srcu to SRCU-fast-updown
  srcu: Add lock guard for srcu_fast_updown flavor
  perf/x86/intel/pt: Drop kernel-doc for deleted struct members
  perf/x86/amd/uncore: Add group validation
  selftests/bpf: Add tests for forked/cloned optimized uprobes
  selftests/bpf: Add tests for uprobe nop10 red zone clobbering
  selftests/bpf: Add reattach tests for uprobe syscall
  selftests/bpf: Change uprobe/usdt trigger bench code to use nop10
  selftests/bpf: Change uprobe syscall tests to use nop10
  selftests/bpf: Emit nop,nop10 instructions combo for x86_64 arch
  ...
 2026-08-18 12:31:07 -07:00
Linus Torvalds
1200d84f4c powerpc updates for 7.3 
- powerpc: 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
 
  - powerpc: 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
 
  - powerpc/irq: Fix missing r2 clobber in PCREL inline assembly
 
  - ppc44x: Set GPIO chip parent
 
  - KVM: PPC: Introduce KVM_CAP_PPC_COMPAT_CAPS and wire up ioctl BY: Amit Machhiwal
 
  - KVM: powerpc: 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, Yanfei Xu
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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 arm64 updates for 7.3 
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.
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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
Linus Torvalds
2df813c9a6 xen: branch for v7.3-rc1 
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Merge tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip

Pull xen updates from Juergen Gross:

 - Small cleanups for the Xen ACPI pad driver and the gnttab driver

 - Fix an issue with Xen PV device initialization seen with QubesOS
   tests

 - Fixes for the Xen balloon driver and the xenbus driver

 - Simplify Xen related kernel configuration

* tag 'for-linus-7.3-rc1-tag' of git://git.kernel.org/pub/scm/linux/kernel/git/xen/tip:
  xenbus: Unregister reboot notifier on init failure
  x86/xen: Drop CONFIG_XEN_PVHVM_SMP
  xen: Drop CONFIG_XEN_AUTO_XLATE
  xen: Drop CONFIG_XEN_PVHVM
  x86/xen: Remove redundant config dependency on X86_LOCAL_APIC
  x86/xen: fix init of balloon stats again
  xen/xenbus: check otherend_id only after it has been initialized
  xen/xenbus: log more information when device state got reset
  Xen/gnttab: adjust two uses of sizeof()
  ACPI: PAD: xen: Stop setting acpi_device_name/class()
 2026-08-18 11:19:37 -07:00
Linus Torvalds
ba24659b1d kexec: updates for v7.3-rc1 
* Deduplicate crash memory allocation and the exclusion of reserved crash
   kernel regions from architecture specific code into a generic
   crash_prepare_headers() and enable crashkernel CMA reservation on arm64 and
   riscv reservation on arm64 and riscv.
 * Skip purgatory checksum verification when the kexec segments cannot be
   corrupted by DMA, which saves about 250ms on kexec.
 * Replace __ASSEMBLY__ with the compiler provided __ASSEMBLER__ in
   include/linux/kexec.h.
 * Fix a keyring refcount imbalance in the kdump kernel's dm-crypt key restore
   path, which over-dropped the user keyring reference when more than one key
   was restored.
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Merge tag 'kexec-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux

Pull kexec updates from Mike Rapoport:

 - Deduplicate crash memory allocation and the exclusion of reserved
   crash kernel regions from architecture specific code into a generic
   crash_prepare_headers() and enable crashkernel CMA reservation on
   arm64 and riscv reservation on arm64 and riscv.

 - Skip purgatory checksum verification when the kexec segments cannot
   be corrupted by DMA, which saves about 250ms on kexec.

 - Replace __ASSEMBLY__ with the compiler provided __ASSEMBLER__ in
   include/linux/kexec.h.

 - Fix a keyring refcount imbalance in the kdump kernel's dm-crypt key
   restore path, which over-dropped the user keyring reference when
   more than one key was restored.

* tag 'kexec-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/liveupdate/linux:
  crash_dump: release keyring reference at the correct time
  kexec: Replace __ASSEMBLY__ with __ASSEMBLER__ in header file
  kexec_file: skip checksum verification when safe
  riscv: kexec_file: Add support for crashkernel CMA reservation
  arm64: kexec_file: Add support for crashkernel CMA reservation
  powerpc/kexec_file: Use crash_exclude_core_ranges() helper
  LoongArch: kexec_file: Use crash_prepare_headers() helper to simplify code
  riscv: kexec_file: Use crash_prepare_headers() helper to simplify code
  x86/crash: Use crash_prepare_headers() helper to simplify code
  arm64: kexec_file: Use crash_prepare_headers() helper to simplify code
  crash: Add crash_prepare_headers() to exclude crash kernel memory
  powerpc/crash: sort crash memory ranges before preparing elfcorehdr
  riscv: kexec_file: Fix crashk_low_res not exclude bug
 2026-08-18 10:28:28 -07:00
Linus Torvalds
38fda1d9d2 memblock: updates for 7.3-rc1 
Non-urgent fixes:
 
 * Fix calculation of node_spanned_pages when running with kernelcore=mirror
 * Properly handle failure to allocate per_cpu_nodestats in
   free_area_init_core_hotplug()
 * Fix deferred initialization of the memory map for configurations where
   node's RAM end is not aligned on PAGES_PER_SECTION
 
 Cleanups:
 
 * Remove redundant pageblock_align() call in free_unused_memmap()
 * Remove unnecessary invalid range checks in users of memblock iterators.
   Some users of for_each_mem_range() and for_each_mem_pfn_range() verify
   that start < end for each range. This is redundant because memblock
   iterators guarantee to never return an invalid range
 * Stop overlapping zones with kernelcore=mirror and align behaviour of
   kernelcore=mirror with other variants of kernelcore=/movablecore=
 * Remove redundant updates of numa_nodes_parsed mask in the callers of
   numa_add_memblk(), the latter always updates the mask anyway
 * Remove unnecessary initialization of pgdat->per_cpu_nodestats to NULL,
   the variable is reset to the actual value a few lines below
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Merge tag 'memblock-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock

Pull memblock updates from Mike Rapoport:
 "Non-urgent fixes:

   - Fix calculation of node_spanned_pages when running
     with 'kernelcore=mirror'

   - Properly handle failure to allocate per_cpu_nodestats
     in free_area_init_core_hotplug()

   - Fix deferred initialization of the memory map for
     configurations where node's RAM end is not aligned
     on PAGES_PER_SECTION

  Cleanups:

   - Remove redundant pageblock_align() call in free_unused_memmap()

   - Remove unnecessary invalid range checks in users of memblock
     iterators. Some users of for_each_mem_range() and
     for_each_mem_pfn_range() verify that start < end for each range.

     This is redundant because memblock iterators guarantee to never
     return an invalid range

   - Stop overlapping zones with 'kernelcore=mirror' and align behaviour
     of 'kernelcore=mirror' with other variants of kernelcore and
     movablecore

   - Remove redundant updates of numa_nodes_parsed mask in the callers
     of numa_add_memblk(), the latter always updates the mask anyway

   - Remove unnecessary initialization of pgdat->per_cpu_nodestats to
     NULL, the variable is reset to the actual value a few lines below"

* tag 'memblock-v7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rppt/memblock: (25 commits)
  mm/mm_init: deferred_grow_zone(): fix out-of-range first_deferred_pfn
  mm/mm_init: remove unnecessary initialization of pgdat->per_cpu_nodestats
  mm/mm_init: remove redundant memset in free_area_init()
  mm: numa_memblks: use numa_add_reserved_memblk() in numa_cleanup_meminfo()
  arch_numa: remove redundant node_possible_map assignment
  mm: numa_memblks: remove redundant numa_nodemask_from_meminfo()
  LoongArch: remove redundant numa_nodes_parsed node_set()
  arch_numa: remove redundant numa_nodes_parsed node_set()
  x86/numa: remove redundant numa_nodes_parsed node_set()
  of/numa: remove redundant numa_nodes_parsed node_set()
  ACPI: NUMA: remove redundant numa_nodes_parsed node_set()
  mm: numa_memblks: set numa_nodes_parsed in numa_add_memblk()
  mm/mm_init: handle alloc_percpu failure in free_area_init_core_hotplug
  mm/mm_init: drop overlap_memmap_init()
  mm/mm_init: don't overlap NORMAL and MOVABLE zones with kernelcore=mirror
  mm/hugetlb: remove unnecessary empty range check in hugetlb_bootmem_set_nodes()
  mm: remove unnecessary empty range check in early_calculate_totalpages()
  powerpc64/kasan: Remove unreachable invalid range check in kasan_init_phys_region()
  ARM: remove unreachable invalid range check in kasan_init()
  riscv: remove unreachable invalid range check in kasan_init()
  ...
 2026-08-18 10:03:54 -07:00
Linus Torvalds
3abe3d0223 Kbuild/Kconfig updates for 7.3 
Kbuild updates
 ==============
 
   * Use --force-group-allocation when linking modules
 
     Have the linker resolve the COMDAT groups and place their members as
     regular sections instead of possibly leaving multiple copies in the
     resulting modules and unnecessary group metadata.
 
   * UAPI header files: Canonicalize __ASSEMBLER__ / __ASSEMBLY__ mixed
     use to __ASSEMBLER__
 
     There is an ongoing effort to change __ASSEMBLY__ to __ASSEMBLER__
     treewide.  For consistency, UAPI headers are normalised to use
     __ASSEMBLER__ only.  Normalisation is done in two subsequent patches
     to simplify a revert in the unexpected case of a regression report.
 
   * link-vmlinux.sh: Improve detection of third pass requirement
 
   * modpost: Canonicalize format of warnings and errors
 
   * Minor changes:
     - Remove srctree path from CHECK output
     - Set the initial value of subdir-rustflags-y
     - Remove broken and unused modules.builtin(.modinfo) targets from
       the top-level Makefile
     - Add symbol size for kallsyms symbols that can change size
     - modpost: Prevent leak when early return no suffix .o in
       read_symbols()
     - scripts/config: Update usage of POSIX sed
     - 'make tags': Add support for rust source files and prevent binary
       files from being analysed
     - Several spelling mistakes and rephrasing
 
 Kconfig updates
 ===============
 
   * Add Julian Braha as Kconfig reviewer
 
   * Fix submenu rendering of negative dependencies
 
   * Minor changes:
     - merge_config.sh: Keep temp file in the output dir
     - Abort rather than loop for ever on EOF
 
 Cc: André Draszik <andre.draszik@linaro.org>
 Cc: Arnd Bergmann <arnd@arndb.de>
 Cc: Ben Dooks <ben.dooks@codethink.co.uk>
 Cc: Bhaskar Chowdhury <unixbhaskar@gmail.com>
 Cc: Breno Leitao <leitao@debian.org>
 Cc: Elsie Heck <its@elc.moe>
 Cc: Gustavo Luiz Duarte <gustavold@gmail.com>
 Cc: Jani Nikula <jani.nikula@intel.com>
 Cc: Julian Braha <julianbraha@gmail.com>
 Cc: Maciej W. Rozycki <macro@orcam.me.uk>
 Cc: Martin Weiss <Martin.weiss2410@gmail.com>
 Cc: Miguel Ojeda <ojeda@kernel.org>
 Cc: Nathan Chancellor <nathan@kernel.org>
 Cc: Nick Huang <sef1548@gmail.com>
 Cc: Nicolas Schier <n.schier@fritz.com>
 Cc: Nicolas Schier <nsc@kernel.org>
 Cc: Peter Collingbourne <pcc@google.com>
 Cc: Petr Pavlu <petr.pavlu@suse.com>
 Cc: Randy Dunlap <rdunlap@infradead.org>
 Cc: Robertus Diawan Chris <robertusdchris@gmail.com>
 Cc: Rong Zhang <i@rong.moe>
 Cc: Sergei Litvin <litvindev@gmail.com>
 Cc: Simon Glass <sjg@chromium.org>
 Cc: Thomas Huth <thuth@redhat.com>
 Cc: Xi Ruoyao <xry111@xry111.site>
 Cc: Yuntao Wang <yuntao.wang@linux.dev>
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Merge tag 'kbuild-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

Pull Kbuild/Kconfig updates from Nicolas Schier:
 "Kbuild updates:

   - Use --force-group-allocation when linking modules

     Have the linker resolve the COMDAT groups and place their members
     as regular sections instead of possibly leaving multiple copies in
     the resulting modules and unnecessary group metadata.

   - UAPI header files: Canonicalize __ASSEMBLER__ / __ASSEMBLY__ mixed
     use to __ASSEMBLER__

     There is an ongoing effort to change __ASSEMBLY__ to __ASSEMBLER__
     treewide. For consistency, UAPI headers are normalised to use
     __ASSEMBLER__ only. Normalisation is done in two subsequent patches
     to simplify a revert in the unexpected case of a regression report.

   - link-vmlinux.sh: Improve detection of third pass requirement

   - modpost: Canonicalize format of warnings and errors

   - Minor changes:
      - Remove srctree path from CHECK output
      - Set the initial value of subdir-rustflags-y
      - Remove broken and unused modules.builtin(.modinfo) targets from
        the top-level Makefile
      - Add symbol size for kallsyms symbols that can change size
      - modpost: Prevent leak when early return no suffix .o in
        read_symbols()
      - scripts/config: Update usage of POSIX sed
      - 'make tags': Add support for rust source files and prevent
        binary files from being analysed
      - Several spelling mistakes and rephrasing

  Kconfig updates:

   - Add Julian Braha as Kconfig reviewer

   - Fix submenu rendering of negative dependencies

   - Minor changes:
      - merge_config.sh: Keep temp file in the output dir
      - Abort rather than loop for ever on EOF"

* tag 'kbuild-7.3-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (23 commits)
  modpost: use mod_warn() and mod_error(), clean up logging
  modpost: add module as parameter to modpost_log()
  kconfig: fix submenu rendering of negative dependencies
  kbuild: link-vmlinux.sh: improve detection of third pass requirement
  kallsyms: add symbol size for kallsyms symbols that can change size
  kbuild: fix modules.builtin(.modinfo) targets in the top-level Makefile
  kbuild: set the initial value of subdir-rustflags-y
  scripts/config: Use in-place editing (-i) in sed portably
  scripts/config: Use POSIX standard ERE (-E) in sed
  modpost: prevent leak when early return no suffix .o in read_symbols()
  usr: Correct a spelling by changing a letter
  fixdep: make gendered language gender-neutral
  kconfig: fix minor typos in comments
  scripts: fix spelling mistakes
  kconfig: abort rather than loop for ever on EOF
  scripts/tags.sh: Add support for rust source files
  scripts/tags.sh: Prevent binary files appearing in cscope.files
  MAINTAINERS: add Julian Braha as Kconfig reviewer
  scripts: headers_install.sh: Normalize __ASSEMBLY__ to __ASSEMBLER__
  scripts: headers_install.sh: Normalize __ASSEMBLER__ to __ASSEMBLY__
  ...
 2026-08-18 09:26:31 -07:00
Linus Torvalds
c5c7a47af8 Thermal control updates for 7.3-rc1 
- Add support for the Directed Package-level Thermal Interrupt to
    the Intel thermal throttling driver to allow package-level thermal
    interrupts to go to one specific CPU in a processor package instead
    of going to all of the CPUs in it (Ricardo Neri)
 
  - Remove hwmon class devices created for thermal zones when the thermal
    zone devices holding them are removed (Rafael Wysocki)
 
  - Use sysfs_emit_at() in trans_table_show() (Thorsten Blum)
 
  - Clean up RFIM groups on DVFS failure and clean up ODVP on probe
    failures in the int340x thermal driver (Pengpeng Hou)
 
  - Remove redundant dev_err() from the int340x thermal driver and the
    bxt_pmic driver (Pan Chuang)
 
  - Simplify ptc_temperature_write() in the int340x thermal driver by
    using kstrtou32_from_user() (Dmitry Antipov)
 
  - Close fd on realloc() failure in the thermometer utility (Amarjeet)
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Merge tag 'thermal-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull thermal control updates from Rafael Wysocki:
 "These include an introduction of Intel Directed Package Thermal
  Interrupt support into the thermal throttling driver for Intel
  processors, probe failure code path fixes and code cleanups in Intel
  thermal drivers, a thermal core fix related to hwmon, a sysfs-related
  cleanup of that code, and a thermometer utility fix:

   - Add support for the Directed Package-level Thermal Interrupt to the
     Intel thermal throttling driver to allow package-level thermal
     interrupts to go to one specific CPU in a processor package instead
     of going to all of the CPUs in it (Ricardo Neri)

   - Remove hwmon class devices created for thermal zones when the
     thermal zone devices holding them are removed (Rafael Wysocki)

   - Use sysfs_emit_at() in trans_table_show() (Thorsten Blum)

   - Clean up RFIM groups on DVFS failure and clean up ODVP on probe
     failures in the int340x thermal driver (Pengpeng Hou)

   - Remove redundant dev_err() from the int340x thermal driver and the
     bxt_pmic driver (Pan Chuang)

   - Simplify ptc_temperature_write() in the int340x thermal driver by
     using kstrtou32_from_user() (Dmitry Antipov)

   - Close fd on realloc() failure in the thermometer utility (Amarjeet)"

* tag 'thermal-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm:
  thermal: hwmon: Remove hwmon class device along with its parent
  thermal: sysfs: Use sysfs_emit_at() in trans_table_show()
  tools/thermal/thermometer: close fd on realloc() failure
  thermal: intel: int340x: simplify ptc_temperature_write()
  thermal: intel: bxt_pmic: Remove redundant dev_err()
  thermal: intel: int340x: Remove redundant dev_err()
  thermal: intel: int3400: clean up ODVP on probe failures
  thermal: intel: int340x: clean up RFIM groups on DVFS failure
  thermal: intel: Add a syscore shutdown callback for kexec reboot
  thermal: intel: Add syscore callbacks for suspend and resume
  thermal: intel: Enable the Directed Package-level Thermal Interrupt
  thermal: intel: Add resources to handle directed package-level thermal interrupts
  x86/thermal: Add bit definitions for Intel Directed Package Thermal Interrupt
 2026-08-18 08:59:40 -07:00
Linus Torvalds
0d508f1745 ACPI support updates for 7.3-rc1 
- Eliminate struct acpi_driver whose users have all been converted to
    bind to platform devices or auxiliary devices and set the "no power
    management" flag for all struct acpi_device objects (Rafael Wysocki)
 
  - Avoid complaints regarding missing _OSC features on platforms where
    OSC_CAPABILITIES_MASK_ERROR is set in _OSC error bits even though all
    of the requested features are actually acknowledged (Rafael Wysocki)
 
  - Avoid printing confusing _OSC messages for non-PCIe host bridges
    without _OSC which is a valid configuration (Kazuma Kondo)
 
  - Use correct region struct for BERT region size check and properly
    map BERT and CCEL data to their ACPI tables (Thomas Renninger)
 
  - Add acpi_device_clear_deps(), refactor RISC-V interrupt controller
    management code to extract generic code from it into the common ACPI
    IRQ code, and enable GICv5 IWB ACPI probe ordering detection on ARM
    on top of that (Lorenzo Pieralisi)
 
  - Stop using acpi_device_name() in the PNP core, stop setting
    acpi_device_name/class() in the Xen variant of the ACPI PAD
    (Processor Aggregator Device) driver, and make the Loongarch
    laptop driver stop setting acpi_device_class() (Rafael Wysocki)
 
  - Fix issues related to the desired_perf register access in the ACPI
    CPPC library and update it to avoid unnecessary overhead (Christian
    Loehle)
 
  - Simplify acpi_get_pci_dev() with the help of a mutex guard, introduce
    acpi_dev_get_pci_dev() for code that has a struct ACPI device for
    which it wants to get the struct pci_dev pointer of the associated
    PCI device, and use it in the ACPI video bus driver (Rafael Wysocki)
 
  - Avoid registering platform devices with resource overlaps in the ACPI
    core device enumeration code (Rafael Wysocki)
 
  - Clean up the list of included header files in the NHLT table parser
    and validate the table and record lengths in the FPDT parser (Andy
    Shevchenko and Pengpeng Hou)
 
  - Unregister the cpufreq notifier on init failure in the ACPI processor
    driver (Can Peng)
 
  - Validate MADT IOAPIC entry bounds during IOAPIC hotplug lookup in the
    ACPI processor driver (Pengpeng Hou)
 
  - Avoid _REG disconnect on probe deferrals related to GPIO IRQ in the
    ACPI EC driver (Zhu Ling)
 
  - Update kerneldoc comments of two structures in the ACPI bus type code
    to use correct struct member names to avoid warnings (Randy Dunlap)
 
  - Use a correct function parameter name in kernel-doc in the ACPI fan
    driver (Randy Dunlap)
 
  - Update ACPI fan IDs to follow modern style and clean up header file
    inclusions in the ACPI fan driver (Andy Shevchenko)
 
  - Use devm_acpi_install_notify_handler() to replace a custom open-coded
    devres-based management of an ACPI notify handler in the ACPI fan
    driver (Rafael Wysocki)
 
  - Adjust charging status validation check in the ACPI battery driver to
    avoid incorrect status reporting (Rafael Wysocki)
 
  - Merge consecutive battery notifications in the ACPI battery driver to
    reduce the pressure on STA, _BST and _BIX/_BIF ACPI control methods
    and make that driver use kstrtoul() instead of sscanf("%lu\n") (Rong
    Zhang)
 
  - Sanitise model_number in the ACPI battery driver by dropping
    unprintable characters (Kate Hsuan)
 
  - Remove a node_set() call that is redundant from
    acpi_parse_memory_affinity() (Sang-Heon Jeon)
 
  - Prevent kernel-doc warnings by converting 2 function description
    comments to kernel-doc format (Randy Dunlap)
 
  - Fix docs build error in the ACPI admin-guide documentation (Randy
    Dunlap)
 
  - Replace __get_free_page() with kmalloc() in the code handling ACPI
    NVS memory during system suspend/resume (Mike Rapoport)
 
  - Fix card device cleanup on registration failure in the core PNP
    code (Yuho Choi)
 
  - Drop an unused assignment of pnp_device_id driver data (Uwe
    Kleine-König)
 
  - Clear driver_data on all paths that free acpi_pci_root in
    acpi_pci_root_add() (Chen Pei)
 
  - Add locking around evaluation of ACPI control methods in the ACPI TAD
    driver to avoid race conditions (Rafael Wysocki)
 
  - Handle repeated SEA error storms in APEI (Junhao He)
 
  - Fix ERST timeout unit conversion in APEI (Nirmoy Das)
 
  - Fix ARM section length accounting after header in the ACPI APEI GHES
    driver (TanZheng)
 
  - Mark ghes_in_nmi_spool_from_list() as maybe unused (Rui Qi)
 
  - Introduce helper function acpi_dev_is_video_device() and use it in
    the core ACPI device enumeration code, in the ACPI video bus driver,
    in the ACPI support code for I2C, in the PCI VGA driver, and in the
    x86 platform thinkpad_acpi driver (Andy Shevchenko)
 
  - Add a quirk to use the native backlight on Acer Nitro AN515-46 to the
    ACPI video bus driver (Marcos Paulo Medeiros)
 
  - Release PCI device reference after lookup in video_detect_portege_r100()
    in the ACPI video bus driver (Yuho Choi)
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Merge tag 'acpi-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm

Pull ACPI support updates from Rafael Wysocki:
 "The most significant change here is the elimination of struct
  acpi_driver that has no more users in the tree now along with some
  documentation related to it, and a follow-up update to set the "no PM"
  flag for all ACPI devices that are now only going to play the role of
  other devices' "companions" (in analogy with DT nodes).

  There is also a significant update of irqchip code related to ACPI
  done in order to enable GICv5 IWB ACPI probe ordering detection on
  ARM, which involves RISC-V interrupt controller management code
  refactoring to extract generic code from it into the common ACPI IRQ
  code.

  The rest is mostly fixes, including some fallout of the _OSC handling
  rework in 7.0, ACPI CPPC library fixes, a workaround for registering
  ACPI platform devices with overlapping I/O or memory resources, an
  ACPI EC driver fix related to probe deferral on platforms using
  HW-reduced ACPI, two ACPI battery driver fixes and a workaround for
  handling model numbers with unprintable characters in it, probe error
  cleanup and driver unload code path fixes, hardware error reporting
  fixes, documentation fixes, and assorted code cleanups all over.

  Specifics:

   - Eliminate struct acpi_driver whose users have all been converted to
     bind to platform devices or auxiliary devices and set the "no power
     management" flag for all struct acpi_device objects (Rafael
     Wysocki)

   - Avoid complaints regarding missing _OSC features on platforms where
     OSC_CAPABILITIES_MASK_ERROR is set in _OSC error bits even though
     all of the requested features are actually acknowledged (Rafael
     Wysocki)

   - Avoid printing confusing _OSC messages for non-PCIe host bridges
     without _OSC which is a valid configuration (Kazuma Kondo)

   - Use correct region struct for BERT region size check and properly
     map BERT and CCEL data to their ACPI tables (Thomas Renninger)

   - Add acpi_device_clear_deps(), refactor RISC-V interrupt controller
     management code to extract generic code from it into the common
     ACPI IRQ code, and enable GICv5 IWB ACPI probe ordering detection
     on ARM on top of that (Lorenzo Pieralisi)

   - Stop using acpi_device_name() in the PNP core, stop setting
     acpi_device_name/class() in the Xen variant of the ACPI PAD
     (Processor Aggregator Device) driver, and make the Loongarch laptop
     driver stop setting acpi_device_class() (Rafael Wysocki)

   - Fix issues related to the desired_perf register access in the ACPI
     CPPC library and update it to avoid unnecessary overhead (Christian
     Loehle)

   - Simplify acpi_get_pci_dev() with the help of a mutex guard,
     introduce acpi_dev_get_pci_dev() for code that has a struct ACPI
     device for which it wants to get the struct pci_dev pointer of the
     associated PCI device, and use it in the ACPI video bus driver
     (Rafael Wysocki)

   - Avoid registering platform devices with resource overlaps in the
     ACPI core device enumeration code (Rafael Wysocki)

   - Clean up the list of included header files in the NHLT table parser
     and validate the table and record lengths in the FPDT parser (Andy
     Shevchenko and Pengpeng Hou)

   - Unregister the cpufreq notifier on init failure in the ACPI
     processor driver (Can Peng)

   - Validate MADT IOAPIC entry bounds during IOAPIC hotplug lookup in
     the ACPI processor driver (Pengpeng Hou)

   - Avoid _REG disconnect on probe deferrals related to GPIO IRQ in the
     ACPI EC driver (Zhu Ling)

   - Update kerneldoc comments of two structures in the ACPI bus type
     code to use correct struct member names to avoid warnings (Randy
     Dunlap)

   - Use a correct function parameter name in kernel-doc in the ACPI fan
     driver (Randy Dunlap)

   - Update ACPI fan IDs to follow modern style and clean up header file
     inclusions in the ACPI fan driver (Andy Shevchenko)

   - Use devm_acpi_install_notify_handler() to replace a custom
     open-coded devres-based management of an ACPI notify handler in the
     ACPI fan driver (Rafael Wysocki)

   - Adjust charging status validation check in the ACPI battery driver
     to avoid incorrect status reporting (Rafael Wysocki)

   - Merge consecutive battery notifications in the ACPI battery driver
     to reduce the pressure on STA, _BST and _BIX/_BIF ACPI control
     methods and make that driver use kstrtoul() instead of
     sscanf("%lu\n") (Rong Zhang)

   - Sanitise model_number in the ACPI battery driver by dropping
     unprintable characters (Kate Hsuan)

   - Remove a node_set() call that is redundant from
     acpi_parse_memory_affinity() (Sang-Heon Jeon)

   - Prevent kernel-doc warnings by converting 2 function description
     comments to kernel-doc format (Randy Dunlap)

   - Fix docs build error in the ACPI admin-guide documentation (Randy
     Dunlap)

   - Replace __get_free_page() with kmalloc() in the code handling ACPI
     NVS memory during system suspend/resume (Mike Rapoport)

   - Fix card device cleanup on registration failure in the core PNP
     code (Yuho Choi)

   - Drop an unused assignment of pnp_device_id driver data (Uwe
     Kleine-König)

   - Clear driver_data on all paths that free acpi_pci_root in
     acpi_pci_root_add() (Chen Pei)

   - Add locking around evaluation of ACPI control methods in the ACPI
     TAD driver to avoid race conditions (Rafael Wysocki)

   - Handle repeated SEA error storms in APEI (Junhao He)

   - Fix ERST timeout unit conversion in APEI (Nirmoy Das)

   - Fix ARM section length accounting after header in the ACPI APEI
     GHES driver (TanZheng)

   - Mark ghes_in_nmi_spool_from_list() as maybe unused (Rui Qi)

   - Introduce helper function acpi_dev_is_video_device() and use it in
     the core ACPI device enumeration code, in the ACPI video bus
     driver, in the ACPI support code for I2C, in the PCI VGA driver,
     and in the x86 platform thinkpad_acpi driver (Andy Shevchenko)

   - Add a quirk to use the native backlight on Acer Nitro AN515-46 to
     the ACPI video bus driver (Marcos Paulo Medeiros)

   - Release PCI device reference after lookup in
     video_detect_portege_r100() in the ACPI video bus driver (Yuho
     Choi)"

* tag 'acpi-7.3-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm: (61 commits)
  ACPI: scan: Avoid registering platform devices with resource overlaps
  ACPI: APEI: Handle repeated SEA error storms
  ACPI: APEI: Fix ERST timeout unit conversion
  ACPI: APEI: GHES: fix ARM section length accounting after header
  ACPI: video: Release PCI device reference after lookup
  ACPI: PCI: Avoid misleading _OSC messages for non-PCIe host bridges without _OSC
  ACPI: TAD: Add locking around AML evaluations
  ACPI: video: force native backlight on Acer Nitro AN515-46
  ACPI: CPPC: Evaluate performance-control PCC use once
  ACPI: CPPC: Avoid locking standalone full-width registers
  ACPI: CPPC: Avoid unnecessary reads for full-width writes
  ACPI: CPPC: Stop reading desired_perf in cppc_get_perf()
  ACPI: CPPC: Skip desired_perf read in cppc_get_perf()
  ACPI: CPPC: Reject desired_perf reads on _CPC revision 4+
  ACPI: processor: Unregister cpufreq notifier on init failure
  ACPI: bus: Avoid confusing complaints regarding missing _OSC features
  ACPI: battery: Adjust charging status validation check
  ACPI: pmtmr: Convert to kernel-doc format
  ACPI: bus: Use correct struct member names
  ACPI: fan: Use correct function parameter name in kernel-doc
  ...
 2026-08-18 08:29:30 -07:00
Bartosz Golaszewski
146cc263e4 Linux 7.2 
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Merge tag 'v7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux into gpio/for-next

Linux 7.2
 2026-08-18 14:21:04 +02:00
Linus Torvalds
d47db9bf50 Crypto library updates for 7.3 
Add library APIs for most AES encryption modes that are used in the
 kernel (ECB, CBC, CBC-CTS, CTR, XCTR, XTS, GCM, CCM).
 
 These AES modes have many in-kernel users that are currently using the
 crypto_skcipher or crypto_aead APIs. These existing APIs are difficult
 to use and inefficient. Until now, the lack of proper library support
 for these has been the main gap in the crypto library.
 
 This set of changes is the next stage of addressing it:
 
   - Implement the new APIs on top of the existing support for
     single-block AES in the library.
 
   - Fully document the new APIs.
 
   - Migrate the only user of the old AES-GCM library API to the new,
     more flexible API; then remove the old API and its implementation.
 
   - Wire up the new APIs to the traditional crypto API by adding
     crypto_skcipher and crypto_aead algorithms.
 
     This makes the new APIs be covered by the traditional crypto API's
     self-tests. It also makes them be already used for real on systems
     that don't have architecture-optimized code for these modes.
 
     But most importantly, this is a prerequisite for migrating the
     architecture-optimized code for these AES modes (i.e.
     arch/*/crypto/aes*) into the library, which as usual will
     eliminate a lot of redundant "glue" code.
 
 Note that unlike some of the other algorithms that have been migrated
 to the library, e.g. SHA-512, for these AES modes there was too much
 to get done in one cycle. Nor did it make sense to handle these modes
 one at a time, because they tend to be coupled together or depend on
 each other, especially in the architecture-optimized AES code.
 
 Thus, most of the benefits (reductions in lines of code, performance
 improvements, etc.) will follow in later cycles when
 architecture-optimized code is migrated into the library and users of
 crypto_skcipher and crypto_aead are updated to use the new APIs.
 
 The design of the new APIs was informed by writing proof-of-concept
 patches for many kernel subsystems currently accessing these same
 algorithms via crypto_skcipher or crypto_aead (patches 18-33 of
 https://lore.kernel.org/r/20260707053503.209874-1-ebiggers@kernel.org/).
 
 While those patches will be resent for real later, the total diffstat
 for them was negative 1905 lines. So clearly the new APIs are quite a
 bit easier to use and align better with what users actually need.
 
 Besides the new AES encryption APIs, there are also a few changes for
 improved AES-CMAC key and context zeroization.
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Merge tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

Pull crypto library updates from Eric Biggers:
 "Add library APIs for most AES encryption modes that are used in the
  kernel (ECB, CBC, CBC-CTS, CTR, XCTR, XTS, GCM, CCM).

  These AES modes have many in-kernel users that are currently using the
  crypto_skcipher or crypto_aead APIs. These existing APIs are difficult
  to use and inefficient. Until now, the lack of proper library support
  for these has been the main gap in the crypto library.

  This set of changes is the next stage of addressing it:

   - Implement the new APIs on top of the existing support for
     single-block AES in the library.

   - Fully document the new APIs.

   - Migrate the only user of the old AES-GCM library API to the new,
     more flexible API; then remove the old API and its implementation.

   - Wire up the new APIs to the traditional crypto API by adding
     crypto_skcipher and crypto_aead algorithms.

     This makes the new APIs be covered by the traditional crypto API's
     self-tests. It also makes them be already used for real on systems
     that don't have architecture-optimized code for these modes.

     But most importantly, this is a prerequisite for migrating the
     architecture-optimized code for these AES modes (i.e.
     arch/*/crypto/aes*) into the library, which as usual will eliminate
     a lot of redundant "glue" code.

  Note that unlike some of the other algorithms that have been migrated
  to the library, e.g. SHA-512, for these AES modes there was too much
  to get done in one cycle. Nor did it make sense to handle these modes
  one at a time, because they tend to be coupled together or depend on
  each other, especially in the architecture-optimized AES code.

  Thus, most of the benefits (reductions in lines of code, performance
  improvements, etc.) will follow in later cycles when
  architecture-optimized code is migrated into the library and users of
  crypto_skcipher and crypto_aead are updated to use the new APIs.

  The design of the new APIs was informed by writing proof-of-concept
  patches for many kernel subsystems currently accessing these same
  algorithms via crypto_skcipher or crypto_aead (patches 18-33 of
  https://lore.kernel.org/r/20260707053503.209874-1-ebiggers@kernel.org/).

  While those patches will be resent for real later, the total diffstat
  for them was negative 1905 lines. So clearly the new APIs are quite a
  bit easier to use and align better with what users actually need.

  Besides the new AES encryption APIs, there are also a few changes for
  improved AES-CMAC key and context zeroization"

* tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux:
  mac80211: fils_aead: Use __cleanup() instead of memzero_explicit()
  Bluetooth: SMP: clear the aes_cmac_key when done
  smb: clear the aes_cmac_key and aes_cmac_ctx when done
  lib/crypto: aes-cmac: Add zeroization functions
  lib/crypto: aesgcm: Remove old AES-GCM library
  x86/sev: Remove obsolete virtual address check
  x86/sev: Use new AES-GCM library
  crypto: aes - Add CCM support using library
  crypto: aes - Add GCM support using library
  crypto: aes - Add XTS support using library
  crypto: aes - Add CTR and XCTR support using library
  crypto: aes - Add CBC and CBC-CTS support using library
  crypto: aes - Add ECB support using library
  lib/crypto: aes: Add CCM support
  lib/crypto: aes: Add GCM support
  lib/crypto: aes: Add XTS support
  lib/crypto: aes: Add CTR and XCTR support
  lib/crypto: aes: Add CBC and CBC-CTS support
  lib/crypto: aes: Add ECB support
  crypto: xts - Split out __xts_verify_key() helper
 2026-08-17 19:16:42 -07:00