kernel/linux.git/arch/arm/include, branch v7.2-rc1

Merge tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

2026-06-21T20:20:19+00:00

Pull non-MM updates from Andrew Morton: - "taskstats: fix TGID dead-thread stat retention" (Yiyang Chen) Fix a taskstats TGID aggregation bug where fields added in the TGID query path were not preserved after thread exit, and adds a kselftest covering the regression. - "lib/tests: string_helpers: Slight improvements" (Andy Shevchenko) Improve lib/tests/string_helpers_kunit.c a little - "lib/base64: decode fixes" (Josh Law) Address minor issues in lib/base64.c - "selftests/filelock: Make output more kselftestish" (Mark Brown) Make the output from the ofdlocks test a bit easier for tooling to work with. Also ignore the generated file - "uaccess: unify inline vs outline copy_{from,to}_user() selection" (Yury Norov) Simplify the usercopy code by removing the selectability of inlining copy_{from,to}_user(). - "ocfs2: validate inline xattr header consumers" (ZhengYuan Huang) Fix a number of possible issues in the ocfs2 xattr code - "lib and lib/cmdline enhancements" (Dmitry Antipov) Provide additional robustness checking in the cmdline handling code and its in-kernel testing and selftests - "cleanup the RAID6 P/Q library" (Christoph Hellwig) Clean up the RAID6 P/Q library to match the recent updates to the RAID 5 XOR library and other CRC/crypto libraries - "ocfs2: harden inode validators against forged metadata" (Michael Bommarito) Add three structural checks to OCFS2 dinode validation so malformed on-disk fields are rejected before ocfs2_populate_inode() copies them into the in-core inode - "lib/raid: replace __get_free_pages() call with kmalloc()" (Mike Rapoport) Clean up the lib/raid code by using kmalloc() in more places * tag 'mm-nonmm-stable-2026-06-21-10-22' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (108 commits) ocfs2: fix circular locking dependency in ocfs2_dio_end_io_write ocfs2: fix NULL h_transaction deref in ocfs2_assure_trans_credits lib: interval_tree_test: validate benchmark parameters ocfs2: avoid moving extents to occupied clusters treewide: fix transposed "sign" typos and update spelling.txt ocfs2: fix UBSAN array-index-out-of-bounds in ocfs2_sum_rightmost_rec fat: reject BPB volumes whose data area starts beyond total sectors selftests/uevent: increase __UEVENT_BUFFER_SIZE to avoid ENOBUFS on busy systems lib/test_firmware: allocate the configured into_buf size fs: efs: remove unneeded debug prints checkpatch: cuppress warnings when Reported-by: is followed by Link: MAINTAINERS: add Alexander as a kcov reviewer mailmap: update Alexander Sverdlin's Email addresses fs: fat: inode: replace sprintf() with scnprintf() ocfs2: fix out-of-bounds write in ocfs2_remove_refcount_extent ocfs2: fix race between ocfs2_control_install_private() and ocfs2_control_release() ocfs2/dlm: require a ref for locking_state debugfs open ocfs2: reject FITRIM ranges shorter than a cluster ocfs2: validate fast symlink target during inode read ocfs2: add journal NULL check in ocfs2_checkpoint_inode() ...

Merge tag 'soc-arm-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc

2026-06-17T18:28:10+00:00

Pull arm SoC code updates from Arnd Bergmann: "The largest addition here is the revived support for the ZTE ZX SoC platform, though this mostly documentation. The other changes are code cleanups that deal with continued conversion of the GPIO library away from GPIO numbers to descriptors and a few minor bugfixes" * tag 'soc-arm-7.2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: MAINTAINERS: Add Axiado reviewer and Maintainers ARM: remove the last few uses of do_bad_IRQ() ARM: imx31: Fix IIM mapping leak in revision check ARM: imx3: Fix CCM node reference leak ARM: orion5x: update board check in mss2_pci_init() to use the DT arm: mvebu_v5_defconfig: remove stale MACH_LINKSTATION_LSCHL reference ARM: mvebu: simplify of_node_put calls ARM: mvebu: drop unnecessary NULL check arm: boot: ep93xx: don't rely on machine_is_*() for removed board files ARM: zte: clean up zx297520v3 doc. warnings arm64: Kconfig: drop unneeded dependency on OF_GPIO for ARCH_MVEBU firmware: imx: sm-misc: Make scmi_imx_misc_ctrl_nb variable static ARM: zte: Add zx297520v3 platform support ARM: pxa: pxa27x: attach software node to its target GPIO controller ARM: pxa: pxa25x: attach software node to its target GPIO controller ARM: pxa: spitz: attach software nodes to their target GPIO controllers ARM: pxa: statify platform device definitions in spitz board file ARM: omap2: simplify allocation for omap_device ARM: select legacy gpiolib interfaces where used ARM: s3c: use gpio lookup table for LEDs

Merge tag 'modules-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux

2026-06-17T10:35:58+00:00

Pull modules updates from Sami Tolvanen: - Add a missing return value check for module_extend_max_pages() to prevent a kernel oops on memory allocation failure. - Force sh_addr to 0 for architecture-specific module sections on arm, arm64, m68k, and riscv. This prevents non-zero section addresses when linking modules with ld.bfd -r, which may cause tools to misbehave and result in worse compressibility. - Replace pr_warn! with pr_warn_once! for set_param null pointer warnings in Rust abstractions, now that the _once variant is available. * tag 'modules-7.2-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/modules/linux: rust: module_param: add missing newline to pr_warn_once module: decompress: check return value of module_extend_max_pages() rust: module_param: use `pr_warn_once!` for null pointer warning module, riscv: force sh_addr=0 for arch-specific sections module, m68k: force sh_addr=0 for arch-specific sections module, arm64: force sh_addr=0 for arch-specific sections module, arm: force sh_addr=0 for arch-specific sections

Merge tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux

2026-06-16T03:46:37+00:00

Pull CRC updates from Eric Biggers: "Accelerate CRC64-NVME for 32-bit ARM by refactoring the arm64 NEON intrinsics implementation to be shared by 32-bit and 64-bit. Also apply a similar cleanup to the 32-bit ARM NEON implementation of xor_gen(), where it now reuses code from the 64-bit implementation" * tag 'crc-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: crypto: aegis128 - Use neon-intrinsics.h on ARM too lib/crc: arm: Enable arm64's NEON intrinsics implementation of crc64 lib/crc: Turn NEON intrinsics crc64 implementation into common code xor/arm64: Use shared NEON intrinsics implementation from 32-bit ARM xor/arm: Replace vectorized implementation with arm64's intrinsics ARM: Add a neon-intrinsics.h header like on arm64

Merge tag 'irq-drivers-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip

2026-06-15T07:55:32+00:00

Pull interrupt chip driver updates from Thomas Gleixner: - Replace the support for the AST2700-A0 early silicon with a proper driver for the final A2 production silicon - Rename and rework the StarFive JH8100 interrupt controller for the new JHB100 SoC as JH8100 was discontinued before production. - Add support for Amlogic A9 SoCs to the meson-gpio interrupt controller - Expand the Econet interrupt controller driver to support MIPS 34Kc Vectored External Interrupt Controller mode. - Prevent a NULL pointer dereference in the GICv4 code as the vLPI code blindly assumes that the ITS was populated. Add the missing sanity check. - Add support for software triggered and for error interrupts to the Renesas RZ/T2H driver. - Add interrupt redirection support for the loongarch architecture. - Add multicore support to the Realtek RTL interrupt driver - The usual updates, enhancements and fixes all over the place * tag 'irq-drivers-2026-06-13' of gitolite.kernel.org:pub/scm/linux/kernel/git/tip/tip: (32 commits) irqchip/irq-realtek-rtl: Add multicore support irqchip/irq-realtek-rtl: Add/simplify register helpers irqchip/loongarch-ir: Add IR (interrupt redirection) irqchip support irqchip/loongarch-avec: Return IRQ_SET_MASK_OK_DONE when keep affinity irqchip/loongarch-avec: Prepare for interrupt redirection support Docs/LoongArch: Add advanced extended IRQ model irqchip/qcom-pdc: Use FIELD_GET() to extract bank index and bit position irqchip/qcom-pdc: Add PDC_VERSION() macro to describe version register fields irqchip/qcom-pdc: Tighten ioremap clamp to single DRV region size irqchip/qcom-pdc: Split __pdc_enable_intr() into per-version helpers irqchip/exynos-combiner: Remove useless spinlock irqchip/renesas-rzt2h: Add error interrupts support irqchip/renesas-rzt2h: Add software-triggered interrupts support irqchip/gic-v4: Don't advertise VLPIs if no ITS is probed irqchip/gic-v3-its: Use FIELD_MODIFY() irqchip/econet-en751221: Support MIPS 34Kc VEIC mode dt-bindings: interrupt-controller: econet: Add CPU interrupt mapping irqchip/meson-gpio: Add support for Amlogic A9 SoCs dt-bindings: interrupt-controller: Add support for Amlogic A9 SoCs irqchip/meson-gpio: Use the correct register in meson_s4_gpio_irq_set_type() ...

Merge tag 'vfs-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs

2026-06-14T22:29:45+00:00

Pull misc vfs updates from Christian Brauner: "Features: - Reduce pipe->mutex contention by pre-allocating pages outside the lock in anon_pipe_write(). anon_pipe_write() called alloc_page() once per page while holding pipe->mutex. The allocation can sleep doing direct reclaim and runs memcg charging, which extends the critical section and stalls any concurrent reader on the same mutex. Now up to 8 pages are pre-allocated before the mutex is taken, leftovers are recycled into the per-pipe tmp_page[] cache before unlock, and any remainder is released after unlock, keeping the allocator out of the critical section on both sides. On a writers x readers sweep with 64KB writes against a 1 MB pipe throughput improves 6-28% and average write latency drops 5-22%; under memory pressure - when the cost of holding the mutex across reclaim is highest - throughput improves 21-48% and latency drops 17-33%. The microbenchmark is added to selftests. - uaccess/sockptr: fix the ignored_trailing logic in copy_struct_to_user() to behave as documented and the usize check in copy_struct_from_sockptr() for user pointers, and add copy_struct_{from,to}_bounce_buffer() and copy_struct_to_sockptr() helpers for upcoming users (IPPROTO_SMBDIRECT, IPPROTO_QUIC). - bpf: add a sleepable bpf_real_inode() kfunc that resolves the real inode backing a dentry via d_real_inode(). On overlayfs the inode attached to the dentry doesn't carry the underlying device information; this is used by the filesystem restriction BPF program that was merged into systemd. - docs: add guidelines for submitting new filesystems, motivated by the maintenance burden abandoned and untestable filesystems impose on VFS developers, blocking infrastructure work like folio conversions and iomap migration. Fixes: - libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo() and drop the now-redundant assignments in callers. This began as a one-line dma-buf fix for a path_noexec() warning; a pseudo filesystem has no reason not to set SB_I_NOEXEC. All init_pseudo() callers were audited: the only visible effect is on dma-buf where SB_I_NOEXEC silences the warning. - Handle set_blocksize() failures in legacy filesystems (bfs, hpfs, qnx4, jfs, befs, affs, isofs, minix, ntfs3, omfs). Mounting a device with a sector size > PAGE_SIZE crashed roughly half of them; the rest had the same missing error handling pattern. Plus a follow-up releasing the superblock buffer_head when setting the minix v3 block size fails. - mount: honour SB_NOUSER in the new mount API. - fs/fcntl: fix a SOFTIRQ-unsafe lock order in fasync signaling by switching the process-group paths of send_sigio() and send_sigurg() from read_lock(&tasklist_lock) to RCU, matching the single-PID path. - vfs: add an FS_USERNS_DELEGATABLE flag and set it for NFS, fixing delegated NFS mounts (fsopen() in a container with the mount performed by a privileged daemon) that broke when non-init s_user_ns was tied to FS_USERNS_MOUNT. - selftests/namespaces: fix a hang in nsid_test where an unreaped grandchild kept the TAP pipe write-end open, a waitpid(-1) race in listns_efault_test, and a false FAIL on kernels without listns() where the tests should SKIP. - filelock: fix the break_lease() stub signature for CONFIG_FILE_LOCKING=n. - init/initramfs_test: wait for the async initramfs unpacking before running; the test and do_populate_rootfs() share the parser state. - fs/coredump: reduce redundant log noise in validate_coredump_safety(). - iomap: pass the correct length to fserror_report_io() in __iomap_write_begin(). - backing-file: fix the backing_file_open() kerneldoc. Cleanups: - initramfs: refactor the cpio hex header parsing to use hex2bin() instead of the hand-rolled simple_strntoul() which is reverted, and extend the initramfs KUnit tests to cover header fields with 0x prefixes. - Replace __get_free_pages() and friends with kmalloc()/kzalloc() across quota, proc, ocfs2/dlm, nilfs2, nfs, nfsd, libfs, jfs, jbd2, isofs, fuse, select, namespace, configfs, binfmt_misc, bfs, and the do_mounts init code - part of the larger work of replacing page allocator calls with kmalloc(). - Use clear_and_wake_up_bit() in unlock_buffer() and journal_end_buffer_io_sync() instead of open-coding the sequence. - Drop unused VFS exports: unexport drop_super_exclusive(), remove start_removing_user_path_at(), and fold __start_removing_path() into start_removing_path(). - fs/read_write: narrow the __kernel_write() export with EXPORT_SYMBOL_FOR_MODULES(). - vfs: uapi: retire octal and hex constants in favor of (1 << n) for the O_ flags. Finding a free bit for a new flag across the architectures was needlessly hard with the mixed bases. - dcache: add extra sanity checks of dead dentries in dentry_free() via a new DENTRY_WARN_ONCE() that also prints d_flags. - iov_iter: use kmemdup_array() in dup_iter() to harden the allocation against multiplication overflow. - fs/pipe: write to ->poll_usage only once. - vfs: remove an always-taken if-branch in find_next_fd(). - dcache: use kmalloc_flex() for struct external_name in __d_alloc(). - namei: use QSTR() instead of QSTR_INIT() in path_pts(). - sync_file_range: delete dead S_ISLNK code. - Comment fixes: retire a stale comment in fget_task_next() and fix assorted spelling mistakes" * tag 'vfs-7.2-rc1.misc' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (73 commits) backing-file: fix backing_file_open() kerneldoc parameter iomap: pass the correct len to fserror_report_io in __iomap_write_begin vfs: add FS_USERNS_DELEGATABLE flag and set it for NFS filelock: fix break_lease() stub signature for CONFIG_FILE_LOCKING=n vfs: uapi: retire octal and hex numbers in favor of (1 << n) for O_ flags bpf: add bpf_real_inode() kfunc fs/read_write: Do not export __kernel_write() to the entire world libfs: drop redundant SB_I_NOEXEC/SB_I_NODEV in init_pseudo() callers libfs: set SB_I_NOEXEC and SB_I_NODEV by default in init_pseudo() mount: honour SB_NOUSER in the new mount API fs/fcntl: fix SOFTIRQ-unsafe lock order in fasync signaling selftests/pipe: add pipe_bench microbenchmark fs/pipe: pre-allocate pages outside pipe->mutex in anon_pipe_write fs: retire stale comment in fget_task_next() fs: fix spelling mistakes in comment bfs: replace get_zeroed_page() with kzalloc() binfmt_misc: replace __get_free_page() with kmalloc() configfs: replace __get_free_pages() with kzalloc() fs/namespace: use __getname() to allocate mntpath buffer fs/select: replace __get_free_page() with kmalloc() ...

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux

2026-06-14T14:37:39+00:00

Pull ARM fixes from Russell King: - Avoid KASAN instrumentation of half-word IO - Use a byte load for KASAN shadow stack - Fix kexec and hibernation with PAN * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9476/1: mm: fix kexec and hibernation with CONFIG_CPU_TTBR0_PAN ARM: 9475/1: entry: use byte load for KASAN VMAP stack shadow ARM: 9474/1: io: avoid KASAN instrumentation of raw halfword I/O

ARM: 9474/1: io: avoid KASAN instrumentation of raw halfword I/O

2026-06-11T13:52:00+00:00

For CPUs before ARMv6, __raw_readw() and __raw_writew() are implemented as C volatile halfword accesses so the compiler can generate an access sequence that is safe for those machines. With KASAN enabled, those C accesses are instrumented as normal memory accesses. That is not valid for MMIO. On ARM926/VersatilePB with KASAN enabled, PL011 probing traps in __asan_store2() while registering the UART, because the instrumented writew() tries to check KASAN shadow for an MMIO address. Keep the existing volatile halfword access, but move the ARMv5 definitions into __no_kasan_or_inline functions so raw MMIO halfword accesses are not instrumented by KASAN. The ARMv6-and-newer inline assembly path is unchanged. Fixes: 421015713b30 ("ARM: 9017/2: Enable KASan for ARM") Cc: stable@vger.kernel.org # v5.11+ Signed-off-by: Karl Mehltretter Reviewed-by: Linus Walleij Signed-off-by: Russell King

ARM: remove the last few uses of do_bad_IRQ()

2026-06-10T08:38:21+00:00

The do_bad_IRQ() macro simply calls handle_bad_irq() with a lock around it. It also carries a comment stating that uses of it should be replaced. According to commit aec0095653cd ("irqchip: gic: Call handle_bad_irq() directly"), which replaced another use of do_bad_IRQ(), locking the IRQ descriptor is not necessary for error reporting. Therefore, replace all uses of do_bad_IRQ() with calls to handle_bad_irq() and remove do_bad_IRQ(). Signed-off-by: Ethan Nelson-Moore Reviewed-by: Linus Walleij Link: https://lore.kernel.org/r/20260610045626.248643-1-enelsonmoore@gmail.com Signed-off-by: Arnd Bergmann

vfs: uapi: retire octal and hex numbers in favor of (1 << n) for O_ flags

2026-06-06T13:34:03+00:00

A recent build failure[1] exposed the diffculty of working with the current octal and hex definitions of O_ flags when trying to find a gap for a new flag. This difficulty is compounded by the fact that O_ flags may have architectural specific values. Replace the hex/octal #defines, which are hard to parse when looking for free bits, with explicit bit shifts like (1 << 11). Also, add comments that identify which architectures redefine some of the seemingly free ("cursed") bits in uapi/asm-generic/fcntl.h. These should not be used to define new O_ flags (for now, at least). The translastion was done with Claude Opus 4.8, and verified with a (non-AI) gawk script. The accounting of which architectures claim which bit-gaps in uapi/asm-generic/fcntl.h is also done by hand. [1]: https://lore.kernel.org/all/agruPPybCx8q2XcJ@sirena.org.uk/ Assisted-by: Claude:Opus 4.8 Signed-off-by: Jori Koolstra Link: https://patch.msgid.link/20260604222405.5382-1-jkoolstra@xs4all.nl Signed-off-by: Christian Brauner (Amutable)