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2025-12-02Merge tag 'fpsimd-on-stack-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linuxLinus Torvalds1-0/+7
Pull arm64 FPSIMD on-stack buffer updates from Eric Biggers: "This is a core arm64 change. However, I was asked to take this because most uses of kernel-mode FPSIMD are in crypto or CRC code. In v6.8, the size of task_struct on arm64 increased by 528 bytes due to the new 'kernel_fpsimd_state' field. This field was added to allow kernel-mode FPSIMD code to be preempted. Unfortunately, 528 bytes is kind of a lot for task_struct. This regression in the task_struct size was noticed and reported. Recover that space by making this state be allocated on the stack at the beginning of each kernel-mode FPSIMD section. To make it easier for all the users of kernel-mode FPSIMD to do that correctly, introduce and use a 'scoped_ksimd' abstraction" * tag 'fpsimd-on-stack-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (23 commits) lib/crypto: arm64: Move remaining algorithms to scoped ksimd API lib/crypto: arm/blake2b: Move to scoped ksimd API arm64/fpsimd: Allocate kernel mode FP/SIMD buffers on the stack arm64/fpu: Enforce task-context only for generic kernel mode FPU net/mlx5: Switch to more abstract scoped ksimd guard API on arm64 arm64/xorblocks: Switch to 'ksimd' scoped guard API crypto/arm64: sm4 - Switch to 'ksimd' scoped guard API crypto/arm64: sm3 - Switch to 'ksimd' scoped guard API crypto/arm64: sha3 - Switch to 'ksimd' scoped guard API crypto/arm64: polyval - Switch to 'ksimd' scoped guard API crypto/arm64: nhpoly1305 - Switch to 'ksimd' scoped guard API crypto/arm64: aes-gcm - Switch to 'ksimd' scoped guard API crypto/arm64: aes-blk - Switch to 'ksimd' scoped guard API crypto/arm64: aes-ccm - Switch to 'ksimd' scoped guard API raid6: Move to more abstract 'ksimd' guard API crypto: aegis128-neon - Move to more abstract 'ksimd' guard API crypto/arm64: sm4-ce-gcm - Avoid pointless yield of the NEON unit crypto/arm64: sm4-ce-ccm - Avoid pointless yield of the NEON unit crypto/arm64: aes-ce-ccm - Avoid pointless yield of the NEON unit lib/crc: Switch ARM and arm64 to 'ksimd' scoped guard API ...
2025-12-02Merge tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linuxLinus Torvalds4-469/+0
Pull crypto library updates from Eric Biggers: "This is the main crypto library pull request for 6.19. It includes: - Add SHA-3 support to lib/crypto/, including support for both the hash functions and the extendable-output functions. Reimplement the existing SHA-3 crypto_shash support on top of the library. This is motivated mainly by the upcoming support for the ML-DSA signature algorithm, which needs the SHAKE128 and SHAKE256 functions. But even on its own it's a useful cleanup. This also fixes the longstanding issue where the architecture-optimized SHA-3 code was disabled by default. - Add BLAKE2b support to lib/crypto/, and reimplement the existing BLAKE2b crypto_shash support on top of the library. This is motivated mainly by btrfs, which supports BLAKE2b checksums. With this change, all btrfs checksum algorithms now have library APIs. btrfs is planned to start just using the library directly. This refactor also improves consistency between the BLAKE2b code and BLAKE2s code. And as usual, it also fixes the issue where the architecture-optimized BLAKE2b code was disabled by default. - Add POLYVAL support to lib/crypto/, replacing the existing POLYVAL support in crypto_shash. Reimplement HCTR2 on top of the library. This simplifies the code and improves HCTR2 performance. As usual, it also makes the architecture-optimized code be enabled by default. The generic implementation of POLYVAL is greatly improved as well. - Clean up the BLAKE2s code - Add FIPS self-tests for SHA-1, SHA-2, and SHA-3" * tag 'libcrypto-updates-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (37 commits) fscrypt: Drop obsolete recommendation to enable optimized POLYVAL crypto: polyval - Remove the polyval crypto_shash crypto: hctr2 - Convert to use POLYVAL library lib/crypto: x86/polyval: Migrate optimized code into library lib/crypto: arm64/polyval: Migrate optimized code into library lib/crypto: polyval: Add POLYVAL library crypto: polyval - Rename conflicting functions lib/crypto: x86/blake2s: Use vpternlogd for 3-input XORs lib/crypto: x86/blake2s: Avoid writing back unchanged 'f' value lib/crypto: x86/blake2s: Improve readability lib/crypto: x86/blake2s: Use local labels for data lib/crypto: x86/blake2s: Drop check for nblocks == 0 lib/crypto: x86/blake2s: Fix 32-bit arg treated as 64-bit lib/crypto: arm, arm64: Drop filenames from file comments lib/crypto: arm/blake2s: Fix some comments crypto: s390/sha3 - Remove superseded SHA-3 code crypto: sha3 - Reimplement using library API crypto: jitterentropy - Use default sha3 implementation lib/crypto: s390/sha3: Add optimized one-shot SHA-3 digest functions lib/crypto: sha3: Support arch overrides of one-shot digest functions ...
2025-12-02Merge tag 'core-uaccess-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-1/+25
Pull scoped user access updates from Thomas Gleixner: "Scoped user mode access and related changes: - Implement the missing u64 user access function on ARM when CONFIG_CPU_SPECTRE=n. This makes it possible to access a 64bit value in generic code with [unsafe_]get_user(). All other architectures and ARM variants provide the relevant accessors already. - Ensure that ASM GOTO jump label usage in the user mode access helpers always goes through a local C scope label indirection inside the helpers. This is required because compilers are not supporting that a ASM GOTO target leaves a auto cleanup scope. GCC silently fails to emit the cleanup invocation and CLANG fails the build. [ Editor's note: gcc-16 will have fixed the code generation issue in commit f68fe3ddda4 ("eh: Invoke cleanups/destructors in asm goto jumps [PR122835]"). But we obviously have to deal with clang and older versions of gcc, so.. - Linus ] This provides generic wrapper macros and the conversion of affected architecture code to use them. - Scoped user mode access with auto cleanup Access to user mode memory can be required in hot code paths, but if it has to be done with user controlled pointers, the access is shielded with a speculation barrier, so that the CPU cannot speculate around the address range check. Those speculation barriers impact performance quite significantly. This cost can be avoided by "masking" the provided pointer so it is guaranteed to be in the valid user memory access range and otherwise to point to a guaranteed unpopulated address space. This has to be done without branches so it creates an address dependency for the access, which the CPU cannot speculate ahead. This results in repeating and error prone programming patterns: if (can_do_masked_user_access()) from = masked_user_read_access_begin((from)); else if (!user_read_access_begin(from, sizeof(*from))) return -EFAULT; unsafe_get_user(val, from, Efault); user_read_access_end(); return 0; Efault: user_read_access_end(); return -EFAULT; which can be replaced with scopes and automatic cleanup: scoped_user_read_access(from, Efault) unsafe_get_user(val, from, Efault); return 0; Efault: return -EFAULT; - Convert code which implements the above pattern over to scope_user.*.access(). This also corrects a couple of imbalanced masked_*_begin() instances which are harmless on most architectures, but prevent PowerPC from implementing the masking optimization. - Add a missing speculation barrier in copy_from_user_iter()" * tag 'core-uaccess-2025-11-30' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: lib/strn*,uaccess: Use masked_user_{read/write}_access_begin when required scm: Convert put_cmsg() to scoped user access iov_iter: Add missing speculation barrier to copy_from_user_iter() iov_iter: Convert copy_from_user_iter() to masked user access select: Convert to scoped user access x86/futex: Convert to scoped user access futex: Convert to get/put_user_inline() uaccess: Provide put/get_user_inline() uaccess: Provide scoped user access regions arm64: uaccess: Use unsafe wrappers for ASM GOTO s390/uaccess: Use unsafe wrappers for ASM GOTO riscv/uaccess: Use unsafe wrappers for ASM GOTO powerpc/uaccess: Use unsafe wrappers for ASM GOTO x86/uaccess: Use unsafe wrappers for ASM GOTO uaccess: Provide ASM GOTO safe wrappers for unsafe_*_user() ARM: uaccess: Implement missing __get_user_asm_dword()
2025-12-01Merge tag 'namespace-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds1-0/+1
Pull namespace updates from Christian Brauner: "This contains substantial namespace infrastructure changes including a new system call, active reference counting, and extensive header cleanups. The branch depends on the shared kbuild branch for -fms-extensions support. Features: - listns() system call Add a new listns() system call that allows userspace to iterate through namespaces in the system. This provides a programmatic interface to discover and inspect namespaces, addressing longstanding limitations: Currently, there is no direct way for userspace to enumerate namespaces. Applications must resort to scanning /proc/*/ns/ across all processes, which is: - Inefficient - requires iterating over all processes - Incomplete - misses namespaces not attached to any running process but kept alive by file descriptors, bind mounts, or parent references - Permission-heavy - requires access to /proc for many processes - No ordering or ownership information - No filtering per namespace type The listns() system call solves these problems: ssize_t listns(const struct ns_id_req *req, u64 *ns_ids, size_t nr_ns_ids, unsigned int flags); struct ns_id_req { __u32 size; __u32 spare; __u64 ns_id; struct /* listns */ { __u32 ns_type; __u32 spare2; __u64 user_ns_id; }; }; Features include: - Pagination support for large namespace sets - Filtering by namespace type (MNT_NS, NET_NS, USER_NS, etc.) - Filtering by owning user namespace - Permission checks respecting namespace isolation - Active Reference Counting Introduce an active reference count that tracks namespace visibility to userspace. A namespace is visible in the following cases: - The namespace is in use by a task - The namespace is persisted through a VFS object (namespace file descriptor or bind-mount) - The namespace is a hierarchical type and is the parent of child namespaces The active reference count does not regulate lifetime (that's still done by the normal reference count) - it only regulates visibility to namespace file handles and listns(). This prevents resurrection of namespaces that are pinned only for internal kernel reasons (e.g., user namespaces held by file->f_cred, lazy TLB references on idle CPUs, etc.) which should not be accessible via (1)-(3). - Unified Namespace Tree Introduce a unified tree structure for all namespaces with: - Fixed IDs assigned to initial namespaces - Lookup based solely on inode number - Maintained list of owned namespaces per user namespace - Simplified rbtree comparison helpers Cleanups - Header Reorganization: - Move namespace types into separate header (ns_common_types.h) - Decouple nstree from ns_common header - Move nstree types into separate header - Switch to new ns_tree_{node,root} structures with helper functions - Use guards for ns_tree_lock - Initial Namespace Reference Count Optimization - Make all reference counts on initial namespaces a nop to avoid pointless cacheline ping-pong for namespaces that can never go away - Drop custom reference count initialization for initial namespaces - Add NS_COMMON_INIT() macro and use it for all namespaces - pid: rely on common reference count behavior - Miscellaneous Cleanups - Rename exit_task_namespaces() to exit_nsproxy_namespaces() - Rename is_initial_namespace() and make argument const - Use boolean to indicate anonymous mount namespace - Simplify owner list iteration in nstree - nsfs: raise SB_I_NODEV, SB_I_NOEXEC, and DCACHE_DONTCACHE explicitly - nsfs: use inode_just_drop() - pidfs: raise DCACHE_DONTCACHE explicitly - pidfs: simplify PIDFD_GET__NAMESPACE ioctls - libfs: allow to specify s_d_flags - cgroup: add cgroup namespace to tree after owner is set - nsproxy: fix free_nsproxy() and simplify create_new_namespaces() Fixes: - setns(pidfd, ...) race condition Fix a subtle race when using pidfds with setns(). When the target task exits after prepare_nsset() but before commit_nsset(), the namespace's active reference count might have been dropped. If setns() then installs the namespaces, it would bump the active reference count from zero without taking the required reference on the owner namespace, leading to underflow when later decremented. The fix resurrects the ownership chain if necessary - if the caller succeeded in grabbing passive references, the setns() should succeed even if the target task exits or gets reaped. - Return EFAULT on put_user() error instead of success - Make sure references are dropped outside of RCU lock (some namespaces like mount namespace sleep when putting the last reference) - Don't skip active reference count initialization for network namespace - Add asserts for active refcount underflow - Add asserts for initial namespace reference counts (both passive and active) - ipc: enable is_ns_init_id() assertions - Fix kernel-doc comments for internal nstree functions - Selftests - 15 active reference count tests - 9 listns() functionality tests - 7 listns() permission tests - 12 inactive namespace resurrection tests - 3 threaded active reference count tests - commit_creds() active reference tests - Pagination and stress tests - EFAULT handling test - nsid tests fixes" * tag 'namespace-6.19-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: (103 commits) pidfs: simplify PIDFD_GET_<type>_NAMESPACE ioctls nstree: fix kernel-doc comments for internal functions nsproxy: fix free_nsproxy() and simplify create_new_namespaces() selftests/namespaces: fix nsid tests ns: drop custom reference count initialization for initial namespaces pid: rely on common reference count behavior ns: add asserts for initial namespace active reference counts ns: add asserts for initial namespace reference counts ns: make all reference counts on initial namespace a nop ipc: enable is_ns_init_id() assertions fs: use boolean to indicate anonymous mount namespace ns: rename is_initial_namespace() ns: make is_initial_namespace() argument const nstree: use guards for ns_tree_lock nstree: simplify owner list iteration nstree: switch to new structures nstree: add helper to operate on struct ns_tree_{node,root} nstree: move nstree types into separate header nstree: decouple from ns_common header ns: move namespace types into separate header ...
2025-11-21Merge tag 'imx-fixes-6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixesArnd Bergmann1-1/+1
i.MX fixes for 6.18, 2nd round: - Correct i.MX8DXL's pcie-ep interrupt number (Frank Li) - Swap interrupt numbers of eqos for imx8dxl-ss-conn (Frank Li) - Correct SAI3 interrupt line for i.MX6UL (Maarten Zanders) - Correct mux-controller select/enable-gpios polarity for imx8qm-mek board (Xu Yang) * tag 'imx-fixes-6.18-2' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: imx8qm-mek: fix mux-controller select/enable-gpios polarity ARM: dts: nxp: imx6ul: correct SAI3 interrupt line arm64: dts: imx8dxl-ss-conn: swap interrupts number of eqos arm64: dts: imx8dxl: Correct pcie-ep interrupt number Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-11-14Merge tag 'arm-soc/for-6.18/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux into arm/fixesArnd Bergmann1-2/+2
This pull request contains Broadcom ARM-based SoCs Device Tree files updates for 6.18, please pull the following: - Rafal fixes the Ethernet PHY address on the Luxul XAP-1440 * tag 'arm-soc/for-6.18/devicetree-fixes-part2' of https://github.com/Broadcom/stblinux: ARM: dts: BCM53573: Fix address of Luxul XAP-1440's Ethernet PHY Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-11-14Merge tag 'imx-fixes-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux into arm/fixesArnd Bergmann2-3/+3
i.MX fixes for 6.18: - Enable ext4 support explicitly in imx_v6_v7_defconfig to fix a regression caused by commit d6ace46c82fd ("ext4: remove obsolete EXT3 config options") - Correct report-rate-hz setting for imx6ull-engicam-microgea-rmm board - Fix MSI mapping for i.MX95 PCIe endpoint device nodes - Fix USB OTG role switching for imx8mp-kontron board - Fix a dt-schema warning caused by audmux node for imx51-zii-rdu1 board - Avoid gpio0_mipi_csi GPIOs being deferred for i.MX8 img subsystem * tag 'imx-fixes-6.18' of https://git.kernel.org/pub/scm/linux/kernel/git/shawnguo/linux: arm64: dts: imx8mp-kontron: Fix USB OTG role switching arm64: dts: imx95: Fix MSI mapping for PCIe endpoint nodes arm64: dts: imx8-ss-img: Avoid gpio0_mipi_csi GPIOs being deferred arm: imx_v6_v7_defconfig: enable ext4 directly ARM: dts: imx51-zii-rdu1: Fix audmux node names ARM: dts: imx6ull-engicam-microgea-rmm: fix report-rate-hz value Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-11-14Merge tag 'aspeed-6.18-fixes-0' of https://git.kernel.org/pub/scm/linux/kernel/git/bmc/linux into arm/fixesArnd Bergmann1-0/+14
First batch of ASPEED fixes for 6.18 This time it's just the one fix addressing a PHY configuration regression in the Fuji (Meta) platform's mac3 devicetree node. * tag 'aspeed-6.18-fixes-0' of https://git.kernel.org/pub/scm/linux/kernel/git/bmc/linux: ARM: dts: aspeed: fuji-data64: Enable mac3 controller Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-11-12Merge tag 'scoped-ksimd-for-arm-arm64' into libcrypto-fpsimd-on-stackEric Biggers1-0/+7
Pull scoped ksimd API for ARM and arm64 from Ard Biesheuvel: "Introduce a more strict replacement API for kernel_neon_begin()/kernel_neon_end() on both ARM and arm64, and replace occurrences of the latter pair appearing in lib/crypto" Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2025-11-12ARM/simd: Add scoped guard API for kernel mode SIMDArd Biesheuvel1-0/+7
Implement the ksimd scoped guard API so that it can be used by code that supports both ARM and arm64. Reviewed-by: Kees Cook <kees@kernel.org> Reviewed-by: Eric Biggers <ebiggers@kernel.org> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Ard Biesheuvel <ardb@kernel.org>
2025-11-11ARM: dts: nxp: imx6ul: correct SAI3 interrupt lineMaarten Zanders1-1/+1
The i.MX6UL reference manual lists two possible interrupt lines for SAI3 (56 and 57, offset +32). The current device tree entry uses the first one (24), which prevents IRQs from being handled properly. Use the second interrupt line (25), which does allow interrupts to work as expected. Fixes: 36e2edf6ac07 ("ARM: dts: imx6ul: add sai support") Signed-off-by: Maarten Zanders <maarten@zanders.be> Cc: stable@vger.kernel.org Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-11-11Merge branch 'kbuild-6.19.fms.extension'Christian Brauner2-0/+17
Bring in the shared branch with the kbuild tree to enable '-fms-extensions' for 6.19. Further namespace cleanup work requires this extension. Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-06Merge tag 'hardening-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds1-0/+2
Pull hardening fixes from Kees Cook: "This is a work-around for a (now fixed) corner case in the arm32 build with Clang KCFI enabled. - Introduce __nocfi_generic for arm32 Clang (Nathan Chancellor)" * tag 'hardening-v6.18-rc5' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: libeth: xdp: Disable generic kCFI pass for libeth_xdp_tx_xmit_bulk() ARM: Select ARCH_USES_CFI_GENERIC_LLVM_PASS compiler_types: Introduce __nocfi_generic
2025-11-04ARM: dts: BCM53573: Fix address of Luxul XAP-1440's Ethernet PHYRafał Miłecki1-2/+2
Luxul XAP-1440 has BCM54210E PHY at address 25. Fixes: 44ad82078069 ("ARM: dts: BCM53573: Fix Ethernet info for Luxul devices") Signed-off-by: Rafał Miłecki <rafal@milecki.pl> Link: https://lore.kernel.org/r/20251002194852.13929-1-zajec5@gmail.com Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
2025-11-03arch: hookup listns() system callChristian Brauner1-0/+1
Add the listns() system call to all architectures. Link: https://patch.msgid.link/20251029-work-namespace-nstree-listns-v4-20-2e6f823ebdc0@kernel.org Tested-by: syzbot@syzkaller.appspotmail.com Reviewed-by: Arnd Bergmann <arnd@arndb.de> Reviewed-by: Jeff Layton <jlayton@kernel.org> Signed-off-by: Christian Brauner <brauner@kernel.org>
2025-11-03ARM: uaccess: Implement missing __get_user_asm_dword()Thomas Gleixner1-1/+25
When CONFIG_CPU_SPECTRE=n then get_user() is missing the 8 byte ASM variant for no real good reason. This prevents using get_user(u64) in generic code. Implement it as a sequence of two 4-byte reads with LE/BE awareness and make the unsigned long (or long long) type for the intermediate variable to read into dependend on the the target type. The __long_type() macro and idea was lifted from PowerPC. Thanks to Christophe for pointing it out. Reported-by: kernel test robot <lkp@intel.com> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org> Reviewed-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Closes: https://lore.kernel.org/oe-kbuild-all/202509120155.pFgwfeUD-lkp@intel.com/ Link: https://patch.msgid.link/20251027083745.168468637@linutronix.de
2025-10-29lib/crypto: arm/blake2b: Migrate optimized code into libraryEric Biggers4-469/+0
Migrate the arm-optimized BLAKE2b code from arch/arm/crypto/ to lib/crypto/arm/. This makes the BLAKE2b library able to use it, and it also simplifies the code because it's easier to integrate with the library than crypto_shash. This temporarily makes the arm-optimized BLAKE2b code unavailable via crypto_shash. A later commit reimplements the blake2b-* crypto_shash algorithms on top of the BLAKE2b library API, making it available again. Note that as per the lib/crypto/ convention, the optimized code is now enabled by default. So, this also fixes the longstanding issue where the optimized BLAKE2b code was not enabled by default. To see the diff from arch/arm/crypto/blake2b-neon-glue.c to lib/crypto/arm/blake2b.h, view this commit with 'git show -M10'. Reviewed-by: Ard Biesheuvel <ardb@kernel.org> Link: https://lore.kernel.org/r/20251018043106.375964-8-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
2025-10-29ARM: Select ARCH_USES_CFI_GENERIC_LLVM_PASSNathan Chancellor1-0/+2
Prior to clang 22.0.0 [1], ARM did not have an architecture specific kCFI bundle lowering in the backend, which may cause issues. Select CONFIG_ARCH_USES_CFI_GENERIC_LLVM_PASS to enable use of __nocfi_generic. Link: https://github.com/llvm/llvm-project/commit/d130f402642fba3d065aacb506cb061c899558de [1] Link: https://github.com/ClangBuiltLinux/linux/issues/2124 Signed-off-by: Nathan Chancellor <nathan@kernel.org> Link: https://patch.msgid.link/20251025-idpf-fix-arm-kcfi-build-error-v1-2-ec57221153ae@kernel.org Signed-off-by: Kees Cook <kees@kernel.org>
2025-10-27arm: imx_v6_v7_defconfig: enable ext4 directlyAndreas Kemnade1-3/+3
In former times, ext4 was enabled implicitely by enabling ext3 but with the ext3 fs gone, it does not get enabled, which lets devices fail to mount root on non-initrd based boots with an ext4 root. Fixes: d6ace46c82fd ("ext4: remove obsolete EXT3 config options") Signed-off-by: Andreas Kemnade <andreas@kemnade.info> Reviewed-by: Fabio Estevam <festevam@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-24Merge tag 'soc-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds2-0/+17
Pull SoC fixes from Arnd Bergmann: "The main change this time is an update to the MAINTAINERS file, listing Krzysztof Kozlowski, Alexandre Belloni, and Linus Walleij as additional maintainers for the SoC tree, in order to go back to a group maintainership. Drew Fustini joins as an additional reviewer for the SoC tree. Thanks to all of you for volunteering to help out. On the actual bugfixes, we have a few correctness changes for firmware drivers (qtee, arm-ffa, scmi) and two devicetree fixes for Raspberry Pi" * tag 'soc-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: soc: officially expand maintainership team firmware: arm_scmi: Fix premature SCMI_XFER_FLAG_IS_RAW clearing in raw mode firmware: arm_scmi: Skip RAW initialization on failure include: trace: Fix inflight count helper on failed initialization firmware: arm_scmi: Account for failed debug initialization ARM: dts: broadcom: rpi: Switch to V3D firmware clock arm64: dts: broadcom: bcm2712: Define VGIC interrupt firmware: arm_ffa: Add support for IMPDEF value in the memory access descriptor tee: QCOMTEE should depend on ARCH_QCOM tee: qcom: return -EFAULT instead of -EINVAL if copy_from_user() fails tee: qcom: prevent potential off by one read
2025-10-20ARM: dts: imx51-zii-rdu1: Fix audmux node namesJihed Chaibi1-2/+2
Rename the 'ssi2' and 'aud3' nodes to 'mux-ssi2' and 'mux-aud3' in the audmux configuration of imx51-zii-rdu1.dts to comply with the naming convention in imx-audmux.yaml. This fixes the following dt-schema warning: imx51-zii-rdu1.dtb: audmux@83fd0000 (fsl,imx51-audmux): 'aud3', 'ssi2' do not match any of the regexes: '^mux-[0-9a-z]*$', '^pinctrl-[0-9]+$' Fixes: ceef0396f367f ("ARM: dts: imx: add ZII RDU1 board") Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-20ARM: dts: imx6ull-engicam-microgea-rmm: fix report-rate-hz valueDario Binacchi1-1/+1
The 'report-rate-hz' property for the edt-ft5x06 driver was added and handled in the Linux kernel by me with patches [1] and [2] for this specific board. The v1 upstream version, which was the one applied to the customer's kernel, used the 'report-rate' property, which was written directly to the controller register. During review, the 'hz' suffix was added, changing its handling so that writing the value directly to the register was no longer possible for the M06 controller. Once the patches were accepted in mainline, I did not reapply them to the customer's kernel, and when upstreaming the DTS for this board, I forgot to correct the 'report-rate-hz' property value. The property must be set to 60 because this board uses the M06 controller, which expects the report rate in units of 10 Hz, meaning the actual value written to the register is 6. [1] 625f829586ea ("dt-bindings: input: touchscreen: edt-ft5x06: add report-rate-hz") [2] 5bcee83a406c ("Input: edt-ft5x06 - set report rate by dts property") Fixes: ffea3cac94ba ("ARM: dts: imx6ul: support Engicam MicroGEA RMM board") Co-developed-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Michael Trimarchi <michael@amarulasolutions.com> Signed-off-by: Dario Binacchi <dario.binacchi@amarulasolutions.com> Signed-off-by: Shawn Guo <shawnguo@kernel.org>
2025-10-17ARM: dts: aspeed: fuji-data64: Enable mac3 controllerTao Ren1-0/+14
"mac3" controller was removed from the initial version of fuji-data64 dts because the rgmii setting is incorrect, but dropping mac3 leads to regression in the existing fuji platform, because fuji.dts simply includes fuji-data64.dts. This patch adds mac3 back to fuji-data64.dts to fix the fuji regression[1], and rgmii settings need to be fixed later. Fixes: b0f294fdfc3e ("ARM: dts: aspeed: facebook-fuji: Include facebook-fuji-data64.dts") Link: https://lore.kernel.org/all/79ddc7b9-ef26-4959-9a16-aa4e006eb145@roeck-us.net/ [1] Signed-off-by: Tao Ren <rentao.bupt@gmail.com> Reviewed-by: Andrew Lunn <andrew@lunn.ch> Signed-off-by: Andrew Jeffery <andrew@codeconstruct.com.au>
2025-10-15Remove long-stale ext3 defconfig optionLinus Torvalds1-1/+0
Inspired by commit c065b6046b34 ("Use CONFIG_EXT4_FS instead of CONFIG_EXT3_FS in all of the defconfigs") I looked around for any other left-over EXT3 config options, and found some old defconfig files still mentioned CONFIG_EXT3_DEFAULTS_TO_ORDERED. That config option was removed a decade ago in commit c290ea01abb7 ("fs: Remove ext3 filesystem driver"). It had a good run, but let's remove it for good. Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2025-10-15Merge tag 'ext4_for_linus-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4Linus Torvalds30-48/+48
Pull ext4 bug fixes from Ted Ts'o: - Fix regression caused by removing CONFIG_EXT3_FS when testing some very old defconfigs - Avoid a BUG_ON when opening a file on a maliciously corrupted file system - Avoid mm warnings when freeing a very large orphan file metadata - Avoid a theoretical races between metadata writeback and checkpoints (it's very hard to hit in practice, since the race requires that the writeback take a very long time) * tag 'ext4_for_linus-6.18-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/tytso/ext4: Use CONFIG_EXT4_FS instead of CONFIG_EXT3_FS in all of the defconfigs ext4: free orphan info with kvfree ext4: detect invalid INLINE_DATA + EXTENTS flag combination ext4, doc: fix and improve directory hash tree description ext4: wait for ongoing I/O to complete before freeing blocks jbd2: ensure that all ongoing I/O complete before freeing blocks
2025-10-13Use CONFIG_EXT4_FS instead of CONFIG_EXT3_FS in all of the defconfigsTheodore Ts'o30-48/+48
Commit d6ace46c82fd ("ext4: remove obsolete EXT3 config options") removed the obsolete EXT3_CONFIG options, since it had been over a decade since fs/ext3 had been removed. Unfortunately, there were a number of defconfigs that still used CONFIG_EXT3_FS which the cleanup commit didn't fix up. This led to a large number of defconfig test builds to fail. Oops. Fixes: d6ace46c82fd ("ext4: remove obsolete EXT3 config options") Signed-off-by: Theodore Ts'o <tytso@mit.edu>
2025-10-13ARM: dts: broadcom: rpi: Switch to V3D firmware clockStefan Wahren2-0/+17
Until commit 919d6924ae9b ("clk: bcm: rpi: Turn firmware clock on/off when preparing/unpreparing") the clk-raspberrypi driver wasn't able to change the state of the V3D clock. Only the clk-bcm2835 was able to do this before. After this commit both drivers were able to work against each other, which could result in a system freeze. One step to avoid this conflict is to switch all V3D consumer to the firmware clock. Reported-by: Marek Szyprowski <m.szyprowski@samsung.com> Closes: https://lore.kernel.org/linux-arm-kernel/727aa0c8-2981-4662-adf3-69cac2da956d@samsung.com/ Fixes: 919d6924ae9b ("clk: bcm: rpi: Turn firmware clock on/off when preparing/unpreparing") Signed-off-by: Stefan Wahren <wahrenst@gmx.net> Co-developed-by: Melissa Wen <mwen@igalia.com> Signed-off-by: Melissa Wen <mwen@igalia.com> Tested-by: Marek Szyprowski <m.szyprowski@samsung.com> Link: https://lore.kernel.org/r/20251005113816.6721-1-wahrenst@gmx.net Signed-off-by: Florian Fainelli <florian.fainelli@broadcom.com>
2025-10-07Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linuxLinus Torvalds5-11/+23
Pull ARM development updates from Russell King: - Use string choices helpers - Add support for HAVE_FUNCTION_GRAPH_FREGS * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9457/1: ftrace: Implement HAVE_FUNCTION_GRAPH_FREGS ARM: 9456/1: mm: fault: use string choices helper ARM: 9454/1: kernel: bios32: use string choices helper ARM: 9451/1: mm: l2x0: use string choices helper
2025-10-02Merge tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmLinus Torvalds10-16/+16
Pull MM updates from Andrew Morton: - "mm, swap: improve cluster scan strategy" from Kairui Song improves performance and reduces the failure rate of swap cluster allocation - "support large align and nid in Rust allocators" from Vitaly Wool permits Rust allocators to set NUMA node and large alignment when perforning slub and vmalloc reallocs - "mm/damon/vaddr: support stat-purpose DAMOS" from Yueyang Pan extend DAMOS_STAT's handling of the DAMON operations sets for virtual address spaces for ops-level DAMOS filters - "execute PROCMAP_QUERY ioctl under per-vma lock" from Suren Baghdasaryan reduces mmap_lock contention during reads of /proc/pid/maps - "mm/mincore: minor clean up for swap cache checking" from Kairui Song performs some cleanup in the swap code - "mm: vm_normal_page*() improvements" from David Hildenbrand provides code cleanup in the pagemap code - "add persistent huge zero folio support" from Pankaj Raghav provides a block layer speedup by optionalls making the huge_zero_pagepersistent, instead of releasing it when its refcount falls to zero - "kho: fixes and cleanups" from Mike Rapoport adds a few touchups to the recently added Kexec Handover feature - "mm: make mm->flags a bitmap and 64-bit on all arches" from Lorenzo Stoakes turns mm_struct.flags into a bitmap. To end the constant struggle with space shortage on 32-bit conflicting with 64-bit's needs - "mm/swapfile.c and swap.h cleanup" from Chris Li cleans up some swap code - "selftests/mm: Fix false positives and skip unsupported tests" from Donet Tom fixes a few things in our selftests code - "prctl: extend PR_SET_THP_DISABLE to only provide THPs when advised" from David Hildenbrand "allows individual processes to opt-out of THP=always into THP=madvise, without affecting other workloads on the system". It's a long story - the [1/N] changelog spells out the considerations - "Add and use memdesc_flags_t" from Matthew Wilcox gets us started on the memdesc project. Please see https://kernelnewbies.org/MatthewWilcox/Memdescs and https://blogs.oracle.com/linux/post/introducing-memdesc - "Tiny optimization for large read operations" from Chi Zhiling improves the efficiency of the pagecache read path - "Better split_huge_page_test result check" from Zi Yan improves our folio splitting selftest code - "test that rmap behaves as expected" from Wei Yang adds some rmap selftests - "remove write_cache_pages()" from Christoph Hellwig removes that function and converts its two remaining callers - "selftests/mm: uffd-stress fixes" from Dev Jain fixes some UFFD selftests issues - "introduce kernel file mapped folios" from Boris Burkov introduces the concept of "kernel file pages". Using these permits btrfs to account its metadata pages to the root cgroup, rather than to the cgroups of random inappropriate tasks - "mm/pageblock: improve readability of some pageblock handling" from Wei Yang provides some readability improvements to the page allocator code - "mm/damon: support ARM32 with LPAE" from SeongJae Park teaches DAMON to understand arm32 highmem - "tools: testing: Use existing atomic.h for vma/maple tests" from Brendan Jackman performs some code cleanups and deduplication under tools/testing/ - "maple_tree: Fix testing for 32bit compiles" from Liam Howlett fixes a couple of 32-bit issues in tools/testing/radix-tree.c - "kasan: unify kasan_enabled() and remove arch-specific implementations" from Sabyrzhan Tasbolatov moves KASAN arch-specific initialization code into a common arch-neutral implementation - "mm: remove zpool" from Johannes Weiner removes zspool - an indirection layer which now only redirects to a single thing (zsmalloc) - "mm: task_stack: Stack handling cleanups" from Pasha Tatashin makes a couple of cleanups in the fork code - "mm: remove nth_page()" from David Hildenbrand makes rather a lot of adjustments at various nth_page() callsites, eventually permitting the removal of that undesirable helper function - "introduce kasan.write_only option in hw-tags" from Yeoreum Yun creates a KASAN read-only mode for ARM, using that architecture's memory tagging feature. It is felt that a read-only mode KASAN is suitable for use in production systems rather than debug-only - "mm: hugetlb: cleanup hugetlb folio allocation" from Kefeng Wang does some tidying in the hugetlb folio allocation code - "mm: establish const-correctness for pointer parameters" from Max Kellermann makes quite a number of the MM API functions more accurate about the constness of their arguments. This was getting in the way of subsystems (in this case CEPH) when they attempt to improving their own const/non-const accuracy - "Cleanup free_pages() misuse" from Vishal Moola fixes a number of code sites which were confused over when to use free_pages() vs __free_pages() - "Add Rust abstraction for Maple Trees" from Alice Ryhl makes the mapletree code accessible to Rust. Required by nouveau and by its forthcoming successor: the new Rust Nova driver - "selftests/mm: split_huge_page_test: split_pte_mapped_thp improvements" from David Hildenbrand adds a fix and some cleanups to the thp selftesting code - "mm, swap: introduce swap table as swap cache (phase I)" from Chris Li and Kairui Song is the first step along the path to implementing "swap tables" - a new approach to swap allocation and state tracking which is expected to yield speed and space improvements. This patchset itself yields a 5-20% performance benefit in some situations - "Some ptdesc cleanups" from Matthew Wilcox utilizes the new memdesc layer to clean up the ptdesc code a little - "Fix va_high_addr_switch.sh test failure" from Chunyu Hu fixes some issues in our 5-level pagetable selftesting code - "Minor fixes for memory allocation profiling" from Suren Baghdasaryan addresses a couple of minor issues in relatively new memory allocation profiling feature - "Small cleanups" from Matthew Wilcox has a few cleanups in preparation for more memdesc work - "mm/damon: add addr_unit for DAMON_LRU_SORT and DAMON_RECLAIM" from Quanmin Yan makes some changes to DAMON in furtherance of supporting arm highmem - "selftests/mm: Add -Wunreachable-code and fix warnings" from Muhammad Anjum adds that compiler check to selftests code and fixes the fallout, by removing dead code - "Improvements to Victim Process Thawing and OOM Reaper Traversal Order" from zhongjinji makes a number of improvements in the OOM killer: mainly thawing a more appropriate group of victim threads so they can release resources - "mm/damon: misc fixups and improvements for 6.18" from SeongJae Park is a bunch of small and unrelated fixups for DAMON - "mm/damon: define and use DAMON initialization check function" from SeongJae Park implement reliability and maintainability improvements to a recently-added bug fix - "mm/damon/stat: expose auto-tuned intervals and non-idle ages" from SeongJae Park provides additional transparency to userspace clients of the DAMON_STAT information - "Expand scope of khugepaged anonymous collapse" from Dev Jain removes some constraints on khubepaged's collapsing of anon VMAs. It also increases the success rate of MADV_COLLAPSE against an anon vma - "mm: do not assume file == vma->vm_file in compat_vma_mmap_prepare()" from Lorenzo Stoakes moves us further towards removal of file_operations.mmap(). This patchset concentrates upon clearing up the treatment of stacked filesystems - "mm: Improve mlock tracking for large folios" from Kiryl Shutsemau provides some fixes and improvements to mlock's tracking of large folios. /proc/meminfo's "Mlocked" field became more accurate - "mm/ksm: Fix incorrect accounting of KSM counters during fork" from Donet Tom fixes several user-visible KSM stats inaccuracies across forks and adds selftest code to verify these counters - "mm_slot: fix the usage of mm_slot_entry" from Wei Yang addresses some potential but presently benign issues in KSM's mm_slot handling * tag 'mm-stable-2025-10-01-19-00' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (372 commits) mm: swap: check for stable address space before operating on the VMA mm: convert folio_page() back to a macro mm/khugepaged: use start_addr/addr for improved readability hugetlbfs: skip VMAs without shareable locks in hugetlb_vmdelete_list alloc_tag: fix boot failure due to NULL pointer dereference mm: silence data-race in update_hiwater_rss mm/memory-failure: don't select MEMORY_ISOLATION mm/khugepaged: remove definition of struct khugepaged_mm_slot mm/ksm: get mm_slot by mm_slot_entry() when slot is !NULL hugetlb: increase number of reserving hugepages via cmdline selftests/mm: add fork inheritance test for ksm_merging_pages counter mm/ksm: fix incorrect KSM counter handling in mm_struct during fork drivers/base/node: fix double free in register_one_node() mm: remove PMD alignment constraint in execmem_vmalloc() mm/memory_hotplug: fix typo 'esecially' -> 'especially' mm/rmap: improve mlock tracking for large folios mm/filemap: map entire large folio faultaround mm/fault: try to map the entire file folio in finish_fault() mm/rmap: mlock large folios in try_to_unmap_one() mm/rmap: fix a mlock race condition in folio_referenced_one() ...
2025-10-02Merge tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linuxLinus Torvalds1-2/+0
Pull block updates from Jens Axboe: - NVMe pull request via Keith: - FC target fixes (Daniel) - Authentication fixes and updates (Martin, Chris) - Admin controller handling (Kamaljit) - Target lockdep assertions (Max) - Keep-alive updates for discovery (Alastair) - Suspend quirk (Georg) - MD pull request via Yu: - Add support for a lockless bitmap. A key feature for the new bitmap are that the IO fastpath is lockless. If a user issues lots of write IO to the same bitmap bit in a short time, only the first write has additional overhead to update bitmap bit, no additional overhead for the following writes. By supporting only resync or recover written data, means in the case creating new array or replacing with a new disk, there is no need to do a full disk resync/recovery. - Switch ->getgeo() and ->bios_param() to using struct gendisk rather than struct block_device. - Rust block changes via Andreas. This series adds configuration via configfs and remote completion to the rnull driver. The series also includes a set of changes to the rust block device driver API: a few cleanup patches, and a few features supporting the rnull changes. The series removes the raw buffer formatting logic from `kernel::block` and improves the logic available in `kernel::string` to support the same use as the removed logic. - floppy arch cleanups - Reduce the number of dereferencing needed for ublk commands - Restrict supported sockets for nbd. Mostly done to eliminate a class of issues perpetually reported by syzbot, by using nonsensical socket setups. - A few s390 dasd block fixes - Fix a few issues around atomic writes - Improve DMA interation for integrity requests - Improve how iovecs are treated with regards to O_DIRECT aligment constraints. We used to require each segment to adhere to the constraints, now only the request as a whole needs to. - Clean up and improve p2p support, enabling use of p2p for metadata payloads - Improve locking of request lookup, using SRCU where appropriate - Use page references properly for brd, avoiding very long RCU sections - Fix ordering of recursively submitted IOs - Clean up and improve updating nr_requests for a live device - Various fixes and cleanups * tag 'for-6.18/block-20250929' of git://git.kernel.org/pub/scm/linux/kernel/git/axboe/linux: (164 commits) s390/dasd: enforce dma_alignment to ensure proper buffer validation s390/dasd: Return BLK_STS_INVAL for EINVAL from do_dasd_request ublk: remove redundant zone op check in ublk_setup_iod() nvme: Use non zero KATO for persistent discovery connections nvmet: add safety check for subsys lock nvme-core: use nvme_is_io_ctrl() for I/O controller check nvme-core: do ioccsz/iorcsz validation only for I/O controllers nvme-core: add method to check for an I/O controller blk-cgroup: fix possible deadlock while configuring policy blk-mq: fix null-ptr-deref in blk_mq_free_tags() from error path blk-mq: Fix more tag iteration function documentation selftests: ublk: fix behavior when fio is not installed ublk: don't access ublk_queue in ublk_unmap_io() ublk: pass ublk_io to __ublk_complete_rq() ublk: don't access ublk_queue in ublk_need_complete_req() ublk: don't access ublk_queue in ublk_check_commit_and_fetch() ublk: don't pass ublk_queue to ublk_fetch() ublk: don't access ublk_queue in ublk_config_io_buf() ublk: don't access ublk_queue in ublk_check_fetch_buf() ublk: pass q_id and tag to __ublk_check_and_get_req() ...
2025-10-02ARM: 9457/1: ftrace: Implement HAVE_FUNCTION_GRAPH_FREGSRichard Weinberger2-4/+15
Enable support for ftrace's funcgraph-retval feature by capturing r0-r3 and fp. Since ARM does not provide its own __arch_ftrace_regs structure, we instead populate pt_regs with the registers required by ftrace. Cc: Donglin Peng <pengdonglin@sangfor.com.cn> Signed-off-by: Richard Weinberger <richard@nod.at> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2025-10-02ARM: 9456/1: mm: fault: use string choices helperKuninori Morimoto1-2/+1
We can use string choices helper, let's use it. It makes one line code. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2025-10-02ARM: 9454/1: kernel: bios32: use string choices helperKuninori Morimoto1-2/+3
We can use string choices helper, let's use it. Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2025-10-02ARM: 9451/1: mm: l2x0: use string choices helperKuninori Morimoto1-3/+4
We can use string choices helper, let's use it. It updates format - ..."%sabled", ...? "en" : "dis", + ..."%s", ... str_enabled_disabled(...) ^^^^^ Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@renesas.com> Signed-off-by: Russell King (Oracle) <rmk+kernel@armlinux.org.uk>
2025-10-01Merge tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linuxLinus Torvalds1-7/+4
Pull Kbuild updates from Nathan Chancellor: - Extend modules.builtin.modinfo to include module aliases from MODULE_DEVICE_TABLE for builtin modules so that userspace tools (such as kmod) can verify that a particular module alias will be handled by a builtin module - Bump the minimum version of LLVM for building the kernel to 15.0.0 - Upgrade several userspace API checks in headers_check.pl to errors - Unify and consolidate CONFIG_WERROR / W=e handling - Turn assembler and linker warnings into errors with CONFIG_WERROR / W=e - Respect CONFIG_WERROR / W=e when building userspace programs (userprogs) - Enable -Werror unconditionally when building host programs (hostprogs) - Support copy_file_range() and data segment alignment in gen_init_cpio to improve performance on filesystems that support reflinks such as btrfs and XFS - Miscellaneous small changes to scripts and configuration files * tag 'kbuild-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: (47 commits) modpost: Initialize builtin_modname to stop SIGSEGVs Documentation: kbuild: note CONFIG_DEBUG_EFI in reproducible builds kbuild: vmlinux.unstripped should always depend on .vmlinux.export.o modpost: Create modalias for builtin modules modpost: Add modname to mod_device_table alias scsi: Always define blogic_pci_tbl structure kbuild: extract modules.builtin.modinfo from vmlinux.unstripped kbuild: keep .modinfo section in vmlinux.unstripped kbuild: always create intermediate vmlinux.unstripped s390: vmlinux.lds.S: Reorder sections KMSAN: Remove tautological checks objtool: Drop noinstr hack for KCSAN_WEAK_MEMORY lib/Kconfig.debug: Drop CLANG_VERSION check from DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT riscv: Remove ld.lld version checks from many TOOLCHAIN_HAS configs riscv: Unconditionally use linker relaxation riscv: Remove version check for LTO_CLANG selects powerpc: Drop unnecessary initializations in __copy_inst_from_kernel_nofault() mips: Unconditionally select ARCH_HAS_CURRENT_STACK_POINTER arm64: Remove tautological LLVM Kconfig conditions ARM: Clean up definition of ARM_HAS_GROUP_RELOCS ...
2025-10-01Merge tag 'soc-arm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds19-103/+113
Pull ARM SoC updates from Arnd Bergmann: "The at91 power management code and the TI AM33 platform each get a few updates for robustness, the other changes are just minor cleanups" * tag 'soc-arm-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: versatile: clock: convert from round_rate() to determine_rate() ARM: rockchip: remove REGULATOR conditional to PM ARM: at91: pm: Remove 2.5V regulator ARM: OMAP2+: clock: convert from round_rate() to determine_rate() ARM: OMAP1: clock: convert from round_rate() to determine_rate() ARM: mach-hpe: Rework support and directory structure arm: omap2: use string choices helper ARM: OMAP2+: pm33xx-core: ix device node reference leaks in amx3_idle_init ARM: OMAP2+: use IS_ERR_OR_NULL() helper ARM: AM33xx: Implement TI advisory 1.0.36 (EMU0/EMU1 pins state on reset) ARM: at91: pm: save and restore ACR during PLL disable/enable ARM: at91: pm: fix MCKx restore routine ARM: at91: pm: fix .uhp_udp_mask specification for current SoCs ARM: shmobile: rcar-gen2: Use SZ_256K definition
2025-10-01Merge tag 'soc-defconfig-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds5-11/+1
Pull SoC defconfig updates from Arnd Bergmann: "Only a small set up updates, enabling a few drivers for Artpec, THead, Renesas and Broadcom chips, and cleaning out some Qualcomm options that were removed previously" * tag 'soc-defconfig-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: ARM: configs: u8500: Set NFC_SHDLC as built-in riscv: defconfig: Enable MMP_PDMA support for SpacemiT K1 SoC riscv: defconfig: run savedefconfig to reorder it ARM: defconfig: Remove obsolete CONFIG_USB_EHCI_MSM arm64: defconfig: Enable Marvell WiFi-Ex USB driver arm64: defconfig: Enable BCM2712 on-chip pin controller driver arm64: defconfig: Enable Axis ARTPEC SoC ARM: s3c6400_defconfig: Drop MTD_NAND_S3C2410 ARM: defconfig: pxa: Remove duplicate CONFIG_USB_GPIO_VBUS entry ARM: defconfig: cleanup orphaned CONFIGs arm64: defconfig: enable i.MX91 pinctrl arm64: defconfig: Enable X1P42100 GPUCC driver arm64: defconfig: Enable QCS615 clock controllers arm64: defconfig: Enable the RZ/V2H(P) RSPI driver arm64: defconfig: Enable Renesas RZ/T2H serial SCI
2025-10-01Merge tag 'soc-dt-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds225-4227/+6842
Pull SoC dt updates from Arnd Bergmann: "There are five sets of new SoCs that get added in existing families, all of them being either upgrades or cut-down versions of the older chips: - Apple M2 Pro, M2 Max and M2 Ultra, used in the 2022/2023 generation of high-end workstations and laptops from Apple. Linux has been working on these for a while but stil requires patches. - Axis Artpec8 is an Armv8 chip based on Samsung Exynos design, unlike the earlier Armv7 Artpec6 from the same company that was part of a separate family of chips. - NXP i.MX91 is a cut-down version of i.MX93, using only a single Cortex-A55 core. - Qualcomm Lemans Auto is a variant of the Lemans SoC that was originally merged under the sa8775p name, the differences being mostly the firmware configuration of the platform. - Four new Renesas SoCs RZ/T2H (r9a09g077m44), RZ/N2H (r9a09g087m44), RZ/T2H (r9a09g077), and RZ/N2H (r9a09g087) are all industrial bedded SoCs based on Cortex-A55 cores In total, there are 65 new machines, including: - Industrial embedded system and single-board computers based on NXP, Allwinner, TI, Rockchips, Marvell, Xilinx Spacemit, Starfive chips. - Reference boards for the newly added Renesas, Qualcomm, NXP and Axis ARMv8 chips as well as Microchip's MPFS RISC-V SoC - Laptops and Workstations using Apple M2 and Qualcomm Snapdragon X1 chips. - Several Samsung phones using Qualcomm Snapdragon chips - Set-top boxes based on Allwinner H313 - Five BMC boards using 32-bit ASpeed SoCs - Three network routers using IXP4xx (ARMv5!) and Broadcom bcm4708 (ARMv7) SoCs Two machines get phased out because they were available only in small quantities but never made it into products: one STi407 based reference board, and a Snapdragon 845 based Chromebook. Aside from the newly added machines, a lot of work went into improving hardware support on the existing machines and cleaning up contents for validation" * tag 'soc-dt-6.18' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: (931 commits) arm64: dts: apm-shadowcat: Drop "apm,xgene2-pcie" compatible arm64: dts: apm-shadowcat: Move slimpro nodes out of "simple-bus" node ARM: dts: microchip: sam9x7: Add qspi controller arm64: dts: qcom: Add MST pixel streams for displayport arm64: dts: qcom: sm6350: correct DP compatibility strings arm64: dts: qcom: monaco-evk: Enable Adreno 623 GPU arm64: dts: qcom: qcs8300-ride: Enable Adreno 623 GPU arm64: dts: qcom: qcs8300: Add gpu and gmu nodes arm64: dts: allwinner: h313: Add Amediatech X96Q dt-bindings: arm: sunxi: Add Amediatech X96Q arm64: dts: apple: t8015: Add SPMI node arm64: dts: apple: t8012: Add SPMI node arm64: dts: apple: Add J180d (Mac Pro, M2 Ultra, 2023) device tree arm64: dts: rockchip: Add devicetree for the ROC-RK3588-RT dt-bindings: arm: rockchip: Add Firefly ROC-RK3588-RT arm64: dts: rockchip: update pinctrl names for Radxa E52C arm64: dts: rockchip: remove vcc_3v3_pmu regulator for Radxa E52C arm64: dts: apple: Add J474s, J475c and J475d device trees arm64: dts: apple: Add J414 and J416 Macbook Pro device trees arm64: dts: apple: Add initial t6020/t6021/t6022 DTs ...
2025-10-01ARM: versatile: clock: convert from round_rate() to determine_rate()Brian Masney1-4/+5
The round_rate() clk ops is deprecated, so migrate this driver from round_rate() to determine_rate() using the Coccinelle semantic patch on the cover letter of this series. Signed-off-by: Brian Masney <bmasney@redhat.com> Acked-by: Sudeep Holla <sudeep.holla@arm.com> Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20251001061100.372737-1-linus.walleij@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-10-01ARM: configs: u8500: Set NFC_SHDLC as built-inJihed Chaibi1-1/+1
The CONFIG_NFC_SHDLC=m setting in u8500_defconfig causes a Kconfig warning because the NFC_SHDLC symbol does not support being built as a module. Change the selection from 'm' to 'y' to build the driver in-kernel. Fixes: 344cad0660ea0 ("ARM: configs: Update U8500 defconfig") Signed-off-by: Jihed Chaibi <jihed.chaibi.dev@gmail.com> Signed-off-by: Linus Walleij <linus.walleij@linaro.org> Link: https://lore.kernel.org/r/20250930122709.28987-1-linus.walleij@linaro.org Signed-off-by: Arnd Bergmann <arnd@arndb.de>
2025-09-30Merge tag 'timers-vdso-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds3-11/+3
Pull VDSO updates from Thomas Gleixner: - Further consolidation of the VDSO infrastructure and the common data store - Simplification of the related Kconfig logic - Improve the VDSO selftest suite * tag 'timers-vdso-2025-09-29' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: selftests: vDSO: Drop vdso_test_clock_getres selftests: vDSO: vdso_test_abi: Add tests for clock_gettime64() selftests: vDSO: vdso_test_abi: Test CPUTIME clocks selftests: vDSO: vdso_test_abi: Use explicit indices for name array selftests: vDSO: vdso_test_abi: Drop clock availability tests selftests: vDSO: vdso_test_abi: Use ksft_finished() selftests: vDSO: vdso_test_abi: Correctly skip whole test with missing vDSO selftests: vDSO: Fix -Wunitialized in powerpc VDSO_CALL() wrapper vdso: Add struct __kernel_old_timeval forward declaration to gettime.h vdso: Gate VDSO_GETRANDOM behind HAVE_GENERIC_VDSO vdso: Drop Kconfig GENERIC_VDSO_TIME_NS vdso: Drop Kconfig GENERIC_VDSO_DATA_STORE vdso: Drop kconfig GENERIC_COMPAT_VDSO vdso: Drop kconfig GENERIC_VDSO_32 riscv: vdso: Untangle Kconfig logic time: Build generic update_vsyscall() only with generic time vDSO vdso/gettimeofday: Remove !CONFIG_TIME_NS stubs vdso: Move ENABLE_COMPAT_VDSO from core to arm64 ARM: VDSO: Remove cntvct_ok global variable vdso/datastore: Gate time data behind CONFIG_GENERIC_GETTIMEOFDAY
2025-09-30Merge tag 'perf-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds1-1/+1
Pull performance events updates from Ingo Molnar: "Core perf code updates: - Convert mmap() related reference counts to refcount_t. This is in reaction to the recently fixed refcount bugs, which could have been detected earlier and could have mitigated the bug somewhat (Thomas Gleixner, Peter Zijlstra) - Clean up and simplify the callchain code, in preparation for sframes (Steven Rostedt, Josh Poimboeuf) Uprobes updates: - Add support to optimize usdt probes on x86-64, which gives a substantial speedup (Jiri Olsa) - Cleanups and fixes on x86 (Peter Zijlstra) PMU driver updates: - Various optimizations and fixes to the Intel PMU driver (Dapeng Mi) Misc cleanups and fixes: - Remove redundant __GFP_NOWARN (Qianfeng Rong)" * tag 'perf-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (57 commits) selftests/bpf: Fix uprobe_sigill test for uprobe syscall error value uprobes/x86: Return error from uprobe syscall when not called from trampoline perf: Skip user unwind if the task is a kernel thread perf: Simplify get_perf_callchain() user logic perf: Use current->flags & PF_KTHREAD|PF_USER_WORKER instead of current->mm == NULL perf: Have get_perf_callchain() return NULL if crosstask and user are set perf: Remove get_perf_callchain() init_nr argument perf/x86: Print PMU counters bitmap in x86_pmu_show_pmu_cap() perf/x86/intel: Add ICL_FIXED_0_ADAPTIVE bit into INTEL_FIXED_BITS_MASK perf/x86/intel: Change macro GLOBAL_CTRL_EN_PERF_METRICS to BIT_ULL(48) perf/x86: Add PERF_CAP_PEBS_TIMING_INFO flag perf/x86/intel: Fix IA32_PMC_x_CFG_B MSRs access error perf/x86/intel: Use early_initcall() to hook bts_init() uprobes: Remove redundant __GFP_NOWARN selftests/seccomp: validate uprobe syscall passes through seccomp seccomp: passthrough uprobe systemcall without filtering selftests/bpf: Fix uprobe syscall shadow stack test selftests/bpf: Change test_uretprobe_regs_change for uprobe and uretprobe selftests/bpf: Add uprobe_regs_equal test selftests/bpf: Add optimized usdt variant for basic usdt test ...
2025-09-30Merge tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipLinus Torvalds2-16/+4
Pull scheduler updates from Ingo Molnar: "Core scheduler changes: - Make migrate_{en,dis}able() inline, to improve performance (Menglong Dong) - Move STDL_INIT() functions out-of-line (Peter Zijlstra) - Unify the SCHED_{SMT,CLUSTER,MC} Kconfig (Peter Zijlstra) Fair scheduling: - Defer throttling to when tasks exit to user-space, to reduce the chance & impact of throttle-preemption with held locks and other resources (Aaron Lu, Valentin Schneider) - Get rid of sched_domains_curr_level hack for tl->cpumask(), as the warning was getting triggered on certain topologies (Peter Zijlstra) Misc cleanups & fixes: - Header cleanups (Menglong Dong) - Fix race in push_dl_task() (Harshit Agarwal)" * tag 'sched-core-2025-09-26' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: sched: Fix some typos in include/linux/preempt.h sched: Make migrate_{en,dis}able() inline rcu: Replace preempt.h with sched.h in include/linux/rcupdate.h arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.c sched/fair: Do not balance task to a throttled cfs_rq sched/fair: Do not special case tasks in throttled hierarchy sched/fair: update_cfs_group() for throttled cfs_rqs sched/fair: Propagate load for throttled cfs_rq sched/fair: Get rid of throttled_lb_pair() sched/fair: Task based throttle time accounting sched/fair: Switch to task based throttle model sched/fair: Implement throttle task work and related helpers sched/fair: Add related data structure for task based throttle sched: Unify the SCHED_{SMT,CLUSTER,MC} Kconfig sched: Move STDL_INIT() functions out-of-line sched/fair: Get rid of sched_domains_curr_level hack for tl->cpumask() sched/deadline: Fix race in push_dl_task()
2025-09-29Merge tag 'hardening-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linuxLinus Torvalds24-25/+25
Pull hardening updates from Kees Cook: "One notable addition is the creation of the 'transitional' keyword for kconfig so CONFIG renaming can go more smoothly. This has been a long-standing deficiency, and with the renaming of CONFIG_CFI_CLANG to CONFIG_CFI (since GCC will soon have KCFI support), this came up again. The breadth of the diffstat is mainly this renaming. - Clean up usage of TRAILING_OVERLAP() (Gustavo A. R. Silva) - lkdtm: fortify: Fix potential NULL dereference on kmalloc failure (Junjie Cao) - Add str_assert_deassert() helper (Lad Prabhakar) - gcc-plugins: Remove TODO_verify_il for GCC >= 16 - kconfig: Fix BrokenPipeError warnings in selftests - kconfig: Add transitional symbol attribute for migration support - kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI" * tag 'hardening-v6.18-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/kees/linux: lib/string_choices: Add str_assert_deassert() helper kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFI kconfig: Add transitional symbol attribute for migration support kconfig: Fix BrokenPipeError warnings in selftests gcc-plugins: Remove TODO_verify_il for GCC >= 16 stddef: Introduce __TRAILING_OVERLAP() stddef: Remove token-pasting in TRAILING_OVERLAP() lkdtm: fortify: Fix potential NULL dereference on kmalloc failure
2025-09-29Merge tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linuxLinus Torvalds8-2218/+0
Pull crypto library updates from Eric Biggers: - Add a RISC-V optimized implementation of Poly1305. This code was written by Andy Polyakov and contributed by Zhihang Shao. - Migrate the MD5 code into lib/crypto/, and add KUnit tests for MD5. Yes, it's still the 90s, and several kernel subsystems are still using MD5 for legacy use cases. As long as that remains the case, it's helpful to clean it up in the same way as I've been doing for other algorithms. Later, I plan to convert most of these users of MD5 to use the new MD5 library API instead of the generic crypto API. - Simplify the organization of the ChaCha, Poly1305, BLAKE2s, and Curve25519 code. Consolidate these into one module per algorithm, and centralize the configuration and build process. This is the same reorganization that has already been successful for SHA-1 and SHA-2. - Remove the unused crypto_kpp API for Curve25519. - Migrate the BLAKE2s and Curve25519 self-tests to KUnit. - Always enable the architecture-optimized BLAKE2s code. * tag 'libcrypto-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ebiggers/linux: (38 commits) crypto: md5 - Implement export_core() and import_core() wireguard: kconfig: simplify crypto kconfig selections lib/crypto: tests: Enable Curve25519 test when CRYPTO_SELFTESTS lib/crypto: curve25519: Consolidate into single module lib/crypto: curve25519: Move a couple functions out-of-line lib/crypto: tests: Add Curve25519 benchmark lib/crypto: tests: Migrate Curve25519 self-test to KUnit crypto: curve25519 - Remove unused kpp support crypto: testmgr - Remove curve25519 kpp tests crypto: x86/curve25519 - Remove unused kpp support crypto: powerpc/curve25519 - Remove unused kpp support crypto: arm/curve25519 - Remove unused kpp support crypto: hisilicon/hpre - Remove unused curve25519 kpp support lib/crypto: tests: Add KUnit tests for BLAKE2s lib/crypto: blake2s: Consolidate into single C translation unit lib/crypto: blake2s: Move generic code into blake2s.c lib/crypto: blake2s: Always enable arch-optimized BLAKE2s code lib/crypto: blake2s: Remove obsolete self-test lib/crypto: x86/blake2s: Reduce size of BLAKE2S_SIGMA2 lib/crypto: chacha: Consolidate into single module ...
2025-09-29Merge tag 'kernel-6.18-rc1.clone3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfsLinus Torvalds1-1/+1
Pull copy_process updates from Christian Brauner: "This contains the changes to enable support for clone3() on nios2 which apparently is still a thing. The more exciting part of this is that it cleans up the inconsistency in how the 64-bit flag argument is passed from copy_process() into the various other copy_*() helpers" [ Fixed up rv ltl_monitor 32-bit support as per Sasha Levin in the merge ] * tag 'kernel-6.18-rc1.clone3' of git://git.kernel.org/pub/scm/linux/kernel/git/vfs/vfs: nios2: implement architecture-specific portion of sys_clone3 arch: copy_thread: pass clone_flags as u64 copy_process: pass clone_flags as u64 across calltree copy_sighand: Handle architectures where sizeof(unsigned long) < sizeof(u64)
2025-09-28Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linuxLinus Torvalds1-1/+1
Pull ARM fix from Russell King: "Just one fix to the module freeing function that was declared __weak when it should not have been. Thanks to Petr Pavlu for spotting this" * tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/rmk/linux: ARM: 9458/1: module: Ensure the override of module_arch_freeing_init()
2025-09-25arch: Add the macro COMPILE_OFFSETS to all the asm-offsets.cMenglong Dong1-0/+2
The include/generated/asm-offsets.h is generated in Kbuild during compiling from arch/SRCARCH/kernel/asm-offsets.c. When we want to generate another similar offset header file, circular dependency can happen. For example, we want to generate a offset file include/generated/test.h, which is included in include/sched/sched.h. If we generate asm-offsets.h first, it will fail, as include/sched/sched.h is included in asm-offsets.c and include/generated/test.h doesn't exist; If we generate test.h first, it can't success neither, as include/generated/asm-offsets.h is included by it. In x86_64, the macro COMPILE_OFFSETS is used to avoid such circular dependency. We can generate asm-offsets.h first, and if the COMPILE_OFFSETS is defined, we don't include the "generated/test.h". And we define the macro COMPILE_OFFSETS for all the asm-offsets.c for this purpose. Signed-off-by: Menglong Dong <dongml2@chinatelecom.cn> Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
2025-09-24Merge tag 'soc-fixes-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/socLinus Torvalds8-9/+11
Pull SoC fixes from Arnd Bergmann: "There are a few minor code fixes for tegra firmware, i.MX firmware and the eyeq reset controller, and a MAINTAINERS update as Alyssa Rosenzweig moves on to non-kernel projects. The other changes are all for devicetree files: - Multiple Marvell Armada SoCs need changes to fix PCIe, audio and SATA - A socfpga board fails to probe the ethernet phy - The two temperature sensors on i.MX8MP are swapped - Allwinner devicetree files cause build-time warnings - Two Rockchip based boards need corrections for headphone detection and SPI flash" * tag 'soc-fixes-6.17-3' of git://git.kernel.org/pub/scm/linux/kernel/git/soc/soc: MAINTAINERS: remove Alyssa Rosenzweig firmware: tegra: Do not warn on missing memory-region property arm64: dts: marvell: cn9132-clearfog: fix multi-lane pci x2 and x4 ports arm64: dts: marvell: cn9132-clearfog: disable eMMC high-speed modes arm64: dts: marvell: cn913x-solidrun: fix sata ports status ARM: dts: kirkwood: Fix sound DAI cells for OpenRD clients arm64: dts: imx8mp: Correct thermal sensor index ARM: imx: Kconfig: Adjust select after renamed config option firmware: imx: Add stub functions for SCMI CPU API firmware: imx: Add stub functions for SCMI LMM API firmware: imx: Add stub functions for SCMI MISC API riscv: dts: allwinner: rename devterm i2c-gpio node to comply with binding arm64: dts: rockchip: Fix the headphone detection on the orangepi 5 arm64: dts: rockchip: Add vcc supply for SPI Flash on NanoPC-T6 ARM: dts: socfpga: sodia: Fix mdio bus probe and PHY address reset: eyeq: fix OF node leak ARM64: dts: mcbin: fix SATA ports on Macchiatobin ARM: dts: armada-370-db: Fix stereo audio input routing on Armada 370 ARM: dts: allwinner: Minor whitespace cleanup
2025-09-24kcfi: Rename CONFIG_CFI_CLANG to CONFIG_CFIKees Cook24-25/+25
The kernel's CFI implementation uses the KCFI ABI specifically, and is not strictly tied to a particular compiler. In preparation for GCC supporting KCFI, rename CONFIG_CFI_CLANG to CONFIG_CFI (along with associated options). Use new "transitional" Kconfig option for old CONFIG_CFI_CLANG that will enable CONFIG_CFI during olddefconfig. Reviewed-by: Linus Walleij <linus.walleij@linaro.org> Reviewed-by: Nathan Chancellor <nathan@kernel.org> Link: https://lore.kernel.org/r/20250923213422.1105654-3-kees@kernel.org Signed-off-by: Kees Cook <kees@kernel.org>