Changes in checkpatch.pl

0fc8f6200d2313278fbf4539bbab74677c685531 - Merge drm/drm-fixes into drm-misc-fixes

Mon, 27 Apr 2026 08:26:49 +0000

Merge drm/drm-fixes into drm-misc-fixesGetting fixes and updates from v7.1-rc1.Signed-off-by: Thomas Zimmermann List of files: /linux/scripts/checkpatch.pl

f9569c6ce4a4bbad0876ca7bd1e04fbfbbc1641f - Merge tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx

Fri, 24 Apr 2026 20:30:54 +0000

Merge tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdxPull SPDX update from Greg KH: "Here is a single SPDX-like change for 7.1-rc1. It explicitly allows the use of SPDX-FileCopyrightText which has been used already in many files. At the same time, update checkpatch to catch any "non allowed" spdx identifiers as we don't want to go overboard here. This has been in linux-next for a long time with no reported problems"* tag 'spdx-7.1-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/gregkh/spdx: LICENSES: Explicitly allow SPDX-FileCopyrightText List of files: /linux/scripts/checkpatch.pl

3e9e952bb3139ad1e08f3e1960239c2988ab90c9 - Merge branch 'for-7.1-printf-kunit-build' into for-linus

Mon, 20 Apr 2026 11:41:28 +0000

Merge branch 'for-7.1-printf-kunit-build' into for-linus List of files: /linux/scripts/checkpatch.pl

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 01:28:57 +0000

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/scripts/checkpatch.pl

e2d10998e4293a27c0389870b5fdf736a71d61ef - Merge tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux

Fri, 17 Apr 2026 21:09:02 +0000

Merge tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linuxPull devicetree updates from Rob Herring: "DT core: - Cleanup of the reserved memory code to keep CMA specifics in CMA code - Add and convert several users to new of_machine_get_match() helper - Validate nul termination in string properties - Update dtc to upstream v1.7.2-69-g53373d135579 - Limit matching reserved memory devices to /reserved-memory nodes - Fix some UAF in unittests - Remove Baikal SoC bus driver - Fix false DT_SPLIT_BINDING_PATCH checkpatch warning - Allow fw_devlink device-tree on x86 - Fix kerneldoc return description for of_property_count_elems_of_size() DT bindings: - Add fsl,imx25-aips, fsl,imx25-tcq, qcom,eliza-pdc, qcom,eliza-spmi-pmic-arb, qcom,hawi-imem, qcom,milos-imem, qcom,hawi-pdc, and lg,sw49410 bindings - Convert arm,vexpress-scc to DT schema - Deprecate Qualcomm generic CPU compatibles. Add Apple M3 CPU cores. - Move some dual-link display panels to the dual-link schema - Drop mux controller node name constraints - Remove Baikal SoC bus bindings - Fix a false warning in the thermal trip node binding"* tag 'devicetree-for-7.1' of git://git.kernel.org/pub/scm/linux/kernel/git/robh/linux: (39 commits) dt-bindings: display: panel: panel-simple: Add lg,sw49410 compatible dt-bindings: display: ti, am65x-dss: Fix AM62L DSS reg and clock constraints dt-bindings: display: simple: Move Innolux G156HCE-L01 panel to dual-link dt-bindings: display: simple: Move AUO 21.5" FHD to dual-link dt-bindings: thermal: Fix false warning with 'phandle' in trips nodes of: unittest: fix use-after-free in testdrv_probe() of: unittest: fix use-after-free in of_unittest_changeset() dt-bindings: qcom,pdc: document the Hawi Power Domain Controller dt-bindings: ARM: arm,vexpress-scc: convert to DT schema drivers/of: fdt: validate flat DT string properties before string use drivers/of: fdt: validate stdout-path properties before parsing them dt-bindings: sram: Document qcom,hawi-imem compatible dt-bindings: sram: Allow multiple-word prefixes to sram subnode dt-bindings: sram: Document qcom,milos-imem scripts/dtc: Update to upstream version v1.7.2-69-g53373d135579 of: property: Allow fw_devlink device-tree on x86 dt-bindings: arm: cpus: Add Apple M3 CPU core compatibles dt-bindings: display: lt8912b: Drop redundant endpoint properties dt-bindings: opp-v2: Fix example 3 CPU reg value dt-bindings: connector: add pd-disable dependency ... List of files: /linux/scripts/checkpatch.pl

440d6635b20037bc9ad46b20817d7b61cef0fc1b - Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Fri, 17 Apr 2026 03:11:56 +0000

Merge tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull non-MM updates from Andrew Morton: - "pid: make sub-init creation retryable" (Oleg Nesterov) Make creation of init in a new namespace more robust by clearing away some historical cruft which is no longer needed. Also some documentation fixups - "selftests/fchmodat2: Error handling and general" (Mark Brown) Fix and a cleanup for the fchmodat2() syscall selftest - "lib: polynomial: Move to math/ and clean up" (Andy Shevchenko) - "hung_task: Provide runtime reset interface for hung task detector" (Aaron Tomlin) Give administrators the ability to zero out /proc/sys/kernel/hung_task_detect_count - "tools/getdelays: use the static UAPI headers from tools/include/uapi" (Thomas Weißschuh) Teach getdelays to use the in-kernel UAPI headers rather than the system-provided ones - "watchdog/hardlockup: Improvements to hardlockup" (Mayank Rungta) Several cleanups and fixups to the hardlockup detector code and its documentation - "lib/bch: fix undefined behavior from signed left-shifts" (Josh Law) A couple of small/theoretical fixes in the bch code - "ocfs2/dlm: fix two bugs in dlm_match_regions()" (Junrui Luo) - "cleanup the RAID5 XOR library" (Christoph Hellwig) A quite far-reaching cleanup to this code. I can't do better than to quote Christoph: "The XOR library used for the RAID5 parity is a bit of a mess right now. The main file sits in crypto/ despite not being cryptography and not using the crypto API, with the generic implementations sitting in include/asm-generic and the arch implementations sitting in an asm/ header in theory. The latter doesn't work for many cases, so architectures often build the code directly into the core kernel, or create another module for the architecture code. Change this to a single module in lib/ that also contains the architecture optimizations, similar to the library work Eric Biggers has done for the CRC and crypto libraries later. After that it changes to better calling conventions that allow for smarter architecture implementations (although none is contained here yet), and uses static_call to avoid indirection function call overhead" - "lib/list_sort: Clean up list_sort() scheduling workarounds" (Kuan-Wei Chiu) Clean up this library code by removing a hacky thing which was added for UBIFS, which UBIFS doesn't actually need - "Fix bugs in extract_iter_to_sg()" (Christian Ehrhardt) Fix a few bugs in the scatterlist code, add in-kernel tests for the now-fixed bugs and fix a leak in the test itself - "kdump: Enable LUKS-encrypted dump target support in ARM64 and PowerPC" (Coiby Xu) Enable support of the LUKS-encrypted device dump target on arm64 and powerpc - "ocfs2: consolidate extent list validation into block read callbacks" (Joseph Qi) Cleanup, simplify, and make more robust ocfs2's validation of extent list fields (Kernel test robot loves mounting corrupted fs images!)* tag 'mm-nonmm-stable-2026-04-15-04-20' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (127 commits) ocfs2: validate group add input before caching ocfs2: validate bg_bits during freefrag scan ocfs2: fix listxattr handling when the buffer is full doc: watchdog: fix typos etc update Sean's email address ocfs2: use get_random_u32() where appropriate ocfs2: split transactions in dio completion to avoid credit exhaustion ocfs2: remove redundant l_next_free_rec check in __ocfs2_find_path() ocfs2: validate extent block list fields during block read ocfs2: remove empty extent list check in ocfs2_dx_dir_lookup_rec() ocfs2: validate dx_root extent list fields during block read ocfs2: fix use-after-free in ocfs2_fault() when VM_FAULT_RETRY ocfs2: handle invalid dinode in ocfs2_group_extend .get_maintainer.ignore: add Askar ocfs2: validate bg_list extent bounds in discontig groups checkpatch: exclude forward declarations of const structs tools/accounting: handle truncated taskstats netlink messages taskstats: set version in TGID exit notifications ocfs2/heartbeat: fix slot mapping rollback leaks on error paths arm64,ppc64le/kdump: pass dm-crypt keys to kdump kernel ... List of files: /linux/scripts/checkpatch.pl

f758440d3d82f2e1804d7df281a64d9ad88b7f52 - checkpatch: exclude forward declarations of const structs

Tue, 31 Mar 2026 18:15:09 +0000

checkpatch: exclude forward declarations of const structsLimit checkpatch warnings for normally-const structs by excluding patternsconsistent with forward declarations.For example, the forward declaration `struct regmap_access_table;` in aheader file currently generates a warning recommending that it isgenerally declared as const; however, this would apply a useless typequalifier in the empty declaration `const struct regmap_access_table;`,and subsequently generate compiler warnings.Link: https://lkml.kernel.org/r/20260331181509.1258693-1-tknelms@google.comSigned-off-by: Taylor Nelms Acked-by: Joe Perches Cc: Andy Whitcroft Cc: Dwaipayan Ray Cc: Lukas Bulwahn Signed-off-by: Andrew Morton List of files: /linux/scripts/checkpatch.pl

83725f1d980b92789f99db0ea756979017c37ac3 - Revert "scripts/checkpatch: add Assisted-by: tag validation"

Tue, 31 Mar 2026 14:31:58 +0000

Revert "scripts/checkpatch: add Assisted-by: tag validation"This reverts commit 8545d9bc4bd0801e0bdfbfdfdc2532ff31236ddf.Unbeknownst to me, and unremarked upon by the checkpatch maintainer, thissame problem was also solved in the mm tree. Fixing it once is enough, sothis one comes out.Signed-off-by: Jonathan Corbet List of files: /linux/scripts/checkpatch.pl

3a6143946217d377b0c3c35f155861528e7a2afa - Merge branch 'docs-fixes' into docs-mw

Mon, 30 Mar 2026 16:01:39 +0000

Merge branch 'docs-fixes' into docs-mwBring the checkpatch Assisted-by fix into docs-next as well. List of files: /linux/scripts/checkpatch.pl

8545d9bc4bd0801e0bdfbfdfdc2532ff31236ddf - scripts/checkpatch: add Assisted-by: tag validation

Fri, 27 Mar 2026 15:41:57 +0000

scripts/checkpatch: add Assisted-by: tag validationThe coding-assistants.rst documentation defines the Assisted-by: tagformat for AI-assisted contributions as: Assisted-by: AGENT_NAME:MODEL_VERSION [TOOL1] [TOOL2]This format does not use an email address, so checkpatch currentlyreports a false positive about an invalid email when encountering thistag.Add Assisted-by: to the recognized signature tags and standard signaturelist. When an Assisted-by: tag is found, validate it instead of checkingfor an email address.Examples of passing tags:- Claude:claude-3-opus coccinelle sparse- FOO:BAR.baz- Copilot Github:claude-3-opus- GitHub Copilot:Claude Opus 4.6- My Cool Agent:v1.2.3 coccinelle sparseExamples of tags triggering the new warning:- Claude coccinelle sparse- JustAName- :missing-agentCc: Jani Nikula Assisted-by: Claude:claude-opus-4.6Co-developed-by: Alex Hung Signed-off-by: Alex Hung Signed-off-by: Harry Wentland Cc: stable@vger.kernel.orgSigned-off-by: Jonathan Corbet Message-ID: <20260327154157.162962-1-harry.wentland@amd.com> List of files: /linux/scripts/checkpatch.pl

d1db4118489fffd2b2f612140b7acbb477880839 - checkpatch: add support for Assisted-by tag

Wed, 11 Mar 2026 21:58:17 +0000

checkpatch: add support for Assisted-by tagThe Assisted-by tag was introduced inDocumentation/process/coding-assistants.rst for attributing AI toolcontributions to kernel patches. However, checkpatch.pl did not recognizethis tag, causing two issues: WARNING: Non-standard signature: Assisted-by: ERROR: Unrecognized email address: 'AGENT_NAME:MODEL_VERSION'Fix this by:1. Adding Assisted-by to the recognized $signature_tags list2. Skipping email validation for Assisted-by lines since they use the AGENT_NAME:MODEL_VERSION format instead of an email address3. Warning when the Assisted-by value doesn't match the expected formatLink: https://lkml.kernel.org/r/20260311215818.518930-1-sashal@kernel.orgSigned-off-by: Sasha Levin Reported-by: Bart Van Assche Acked-by: Joe Perches Cc: Andy Whitcroft Cc: Dwaipayan Ray Cc: Jonathan Corbet Cc: Lukas Bulwahn Signed-off-by: Andrew Morton List of files: /linux/scripts/checkpatch.pl

ebf1bafd090790704ba54c032de299fccd90a9da - LICENSES: Explicitly allow SPDX-FileCopyrightText

Sun, 01 Mar 2026 14:33:23 +0000

LICENSES: Explicitly allow SPDX-FileCopyrightTextSources already have SPDX-FileCopyrightText (~40 instances) and moreappear on the mailing list, so document that it is allowed. On theother hand SPDX defines several other tags like SPDX-FileType, so addcheckpatch rule to narrow desired tags only to two of them - license andcopyright. That way no new tags would sneak in to the kernel unnoticed.Cc: Laurent Pinchart Cc: Joe Perches Acked-by: Laurent Pinchart Signed-off-by: Krzysztof Kozlowski Signed-off-by: Greg Kroah-Hartman List of files: /linux/scripts/checkpatch.pl

0421ccdfad0d92713a812a5aeb7d07b0ea7213c8 - Merge tag 'v7.0-rc3' into next

Thu, 12 Mar 2026 17:44:42 +0000

Merge tag 'v7.0-rc3' into nextSync up with the mainline to brig up the latest changes, specificallychanges to ALPS driver. List of files: /linux/scripts/checkpatch.pl

42d3b66d4cdbacfc9d120d2301b8de89cc29a914 - Merge drm/drm-next into drm-xe-next

Thu, 12 Mar 2026 14:17:56 +0000

Merge drm/drm-next into drm-xe-nextBackmerging to bring in 7.00-rc3. Important ahead GPU SVM merging THPsupport.Signed-off-by: Matthew Brost List of files: /linux/scripts/checkpatch.pl

f09812b85fa6f41058bcc46e70ac406bf9b0493a - Merge drm/drm-next into drm-intel-next

Wed, 25 Feb 2026 11:23:04 +0000

Merge drm/drm-next into drm-intel-nextSync with v7.0-rc1 which contains a few treewide changes affecting i915.Signed-off-by: Jani Nikula List of files: /linux/scripts/checkpatch.pl

a45ff9dd3fec5d604f99b2665c40db26ce81ec0c - checkpatch: Fix false DT_SPLIT_BINDING_PATCH warnings

Wed, 21 Jan 2026 21:27:14 +0000

checkpatch: Fix false DT_SPLIT_BINDING_PATCH warningsPatches which both remove and add/modify DT binding files areincorrectly flagged as needing to split the patch. The issue is thecheck sees "dev/null" as one of the files in the patch which is not a DTbinding file. Add "dev/null" to the skipped files.Link: https://patch.msgid.link/20260121212715.144495-1-robh@kernel.orgSigned-off-by: Rob Herring (Arm) List of files: /linux/scripts/checkpatch.pl

8b85987d3cf50178f67618122d9f3bb202f62f42 - Merge drm/drm-next into drm-misc-next

Mon, 23 Feb 2026 10:48:20 +0000

Merge drm/drm-next into drm-misc-nextLet's merge 7.0-rc1 to start the new drm-misc-next windowSigned-off-by: Maxime Ripard List of files: /linux/scripts/checkpatch.pl

c17ee635fd3a482b2ad2bf5e269755c2eae5f25e - Merge drm/drm-fixes into drm-misc-fixes

Mon, 23 Feb 2026 09:09:45 +0000

Merge drm/drm-fixes into drm-misc-fixes7.0-rc1 was just released, let's merge it to kick the new release cycle.Signed-off-by: Maxime Ripard List of files: /linux/scripts/checkpatch.pl

a353e7260b5951a62dce43630ae9265accd96a4b - Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost

Fri, 13 Feb 2026 20:02:18 +0000

Merge tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhostPull virtio updates from Michael Tsirkin: - in-order support in virtio core - multiple address space support in vduse - fixes, cleanups all over the place, notably dma alignment fixes for non-cache-coherent systems* tag 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mst/vhost: (59 commits) vduse: avoid adding implicit padding vhost: fix caching attributes of MMIO regions by setting them explicitly vdpa/mlx5: update MAC address handling in mlx5_vdpa_set_attr() vdpa/mlx5: reuse common function for MAC address updates vdpa/mlx5: update mlx_features with driver state check crypto: virtio: Replace package id with numa node id crypto: virtio: Remove duplicated virtqueue_kick in virtio_crypto_skcipher_crypt_req crypto: virtio: Add spinlock protection with virtqueue notification Documentation: Add documentation for VDUSE Address Space IDs vduse: bump version number vduse: add vq group asid support vduse: merge tree search logic of IOTLB_GET_FD and IOTLB_GET_INFO ioctls vduse: take out allocations from vduse_dev_alloc_coherent vduse: remove unused vaddr parameter of vduse_domain_free_coherent vduse: refactor vdpa_dev_add for goto err handling vhost: forbid change vq groups ASID if DRIVER_OK is set vdpa: document set_group_asid thread safety vduse: return internal vq group struct as map token vduse: add vq group support vduse: add v1 API definition ... List of files: /linux/scripts/checkpatch.pl

136114e0abf03005e182d75761ab694648e6d388 - Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm

Thu, 12 Feb 2026 20:13:01 +0000

Merge tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mmPull non-MM updates from Andrew Morton: - "ocfs2: give ocfs2 the ability to reclaim suballocator free bg" saves disk space by teaching ocfs2 to reclaim suballocator block group space (Heming Zhao) - "Add ARRAY_END(), and use it to fix off-by-one bugs" adds the ARRAY_END() macro and uses it in various places (Alejandro Colomar) - "vmcoreinfo: support VMCOREINFO_BYTES larger than PAGE_SIZE" makes the vmcore code future-safe, if VMCOREINFO_BYTES ever exceeds the page size (Pnina Feder) - "kallsyms: Prevent invalid access when showing module buildid" cleans up kallsyms code related to module buildid and fixes an invalid access crash when printing backtraces (Petr Mladek) - "Address page fault in ima_restore_measurement_list()" fixes a kexec-related crash that can occur when booting the second-stage kernel on x86 (Harshit Mogalapalli) - "kho: ABI headers and Documentation updates" updates the kexec handover ABI documentation (Mike Rapoport) - "Align atomic storage" adds the __aligned attribute to atomic_t and atomic64_t definitions to get natural alignment of both types on csky, m68k, microblaze, nios2, openrisc and sh (Finn Thain) - "kho: clean up page initialization logic" simplifies the page initialization logic in kho_restore_page() (Pratyush Yadav) - "Unload linux/kernel.h" moves several things out of kernel.h and into more appropriate places (Yury Norov) - "don't abuse task_struct.group_leader" removes the usage of ->group_leader when it is "obviously unnecessary" (Oleg Nesterov) - "list private v2 & luo flb" adds some infrastructure improvements to the live update orchestrator (Pasha Tatashin)* tag 'mm-nonmm-stable-2026-02-12-10-48' of git://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm: (107 commits) watchdog/hardlockup: simplify perf event probe and remove per-cpu dependency procfs: fix missing RCU protection when reading real_parent in do_task_stat() watchdog/softlockup: fix sample ring index wrap in need_counting_irqs() kcsan, compiler_types: avoid duplicate type issues in BPF Type Format kho: fix doc for kho_restore_pages() tests/liveupdate: add in-kernel liveupdate test liveupdate: luo_flb: introduce File-Lifecycle-Bound global state liveupdate: luo_file: Use private list list: add kunit test for private list primitives list: add primitives for private list manipulations delayacct: fix uapi timespec64 definition panic: add panic_force_cpu= parameter to redirect panic to a specific CPU netclassid: use thread_group_leader(p) in update_classid_task() RDMA/umem: don't abuse current->group_leader drm/pan*: don't abuse current->group_leader drm/amd: kill the outdated "Only the pthreads threading model is supported" checks drm/amdgpu: don't abuse current->group_leader android/binder: use same_thread_group(proc->tsk, current) in binder_mmap() android/binder: don't abuse current->group_leader kho: skip memoryless NUMA nodes when reserving scratch areas ... List of files: /linux/scripts/checkpatch.pl