Changes in Kbuild

f4b369c6fe0ceaba2da2daff8c9eb415f85926dd - Merge branch 'next' into for-linus

Mon, 20 Apr 2026 03:28:57 +0200

Merge branch 'next' into for-linusPrepare input updates for 7.1 merge window. List of files: /linux/include/asm-generic/Kbuild

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

Thu, 12 Mar 2026 18:44:42 +0100

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/include/asm-generic/Kbuild

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 05:11:56 +0200

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/include/asm-generic/Kbuild

e20043b4765cdf7ec8e963d706bb91469cba8cb8 - xor: make xor.ko self-contained in lib/raid/

Fri, 27 Mar 2026 07:16:53 +0100

xor: make xor.ko self-contained in lib/raid/Move the asm/xor.h headers to lib/raid/xor/$(SRCARCH)/xor_arch.h andinclude/linux/raid/xor_impl.h to lib/raid/xor/xor_impl.h so that thexor.ko module implementation is self-contained in lib/raid/.As this remove the asm-generic mechanism a new kconfig symbol is added toindicate that a architecture-specific implementations exists, andxor_arch.h should be included.Link: https://lkml.kernel.org/r/20260327061704.3707577-22-hch@lst.deSigned-off-by: Christoph Hellwig Reviewed-by: Eric Biggers Tested-by: Eric Biggers Cc: Albert Ou Cc: Alexander Gordeev Cc: Alexandre Ghiti Cc: Andreas Larsson Cc: Anton Ivanov Cc: Ard Biesheuvel Cc: Arnd Bergmann Cc: "Borislav Petkov (AMD)" Cc: Catalin Marinas Cc: Chris Mason Cc: Christian Borntraeger Cc: Dan Williams Cc: David S. Miller Cc: David Sterba Cc: Heiko Carstens Cc: Herbert Xu Cc: "H. Peter Anvin" Cc: Huacai Chen Cc: Ingo Molnar Cc: Jason A. Donenfeld Cc: Johannes Berg Cc: Li Nan Cc: Madhavan Srinivasan Cc: Magnus Lindholm Cc: Matt Turner Cc: Michael Ellerman Cc: Nicholas Piggin Cc: Palmer Dabbelt Cc: Richard Henderson Cc: Richard Weinberger Cc: Russell King Cc: Song Liu Cc: Sven Schnelle Cc: Ted Ts'o Cc: Vasily Gorbik Cc: WANG Xuerui Cc: Will Deacon Signed-off-by: Andrew Morton List of files: /linux/include/asm-generic/Kbuild

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

Thu, 12 Mar 2026 15:17:56 +0100

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/include/asm-generic/Kbuild

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

Wed, 25 Feb 2026 12:23:04 +0100

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/include/asm-generic/Kbuild

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

Mon, 23 Feb 2026 11:48:20 +0100

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/include/asm-generic/Kbuild

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

Mon, 23 Feb 2026 10:09:45 +0100

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/include/asm-generic/Kbuild

bf2c3138ae3694d4687cbe451c774c288ae2ad06 - Merge tag 'kvm-x86-pmu-6.20' of https://github.com/kvm-x86/linux into HEAD

Mon, 09 Feb 2026 19:35:16 +0100

Merge tag 'kvm-x86-pmu-6.20' of https://github.com/kvm-x86/linux into HEADKVM mediated PMU support for 6.20Add support for mediated PMUs, where KVM gives the guest full ownership of PMUhardware (contexted switched around the fastpath run loop) and allows directaccess to data MSRs and PMCs (restricted by the vPMU model), but interceptsaccess to control registers, e.g. to enforce event filtering and to prevent theguest from profiling sensitive host state.To keep overall complexity reasonable, mediated PMU usage is all or nothingfor a given instance of KVM (controlled via module param). The Mediated PMUis disabled default, partly to maintain backwards compatilibity for existingsetup, partly because there are tradeoffs when running with a mediated PMU thatmay be non-starters for some use cases, e.g. the host loses the ability toprofile guests with mediated PMUs, the fastpath run loop is also a blind spot,entry/exit transitions are more expensive, etc.Versus the emulated PMU, where KVM is "just another perf user", the mediatedPMU delivers more accurate profiling and monitoring (no risk of contention andthus dropped events), with significantly less overhead (fewer exits and fasteremulation/programming of event selectors) E.g. when running Specint-2017 ona single-socket Sapphire Rapids with 56 cores and no-SMT, and using perf fromwithin the guest: Perf command: a. basic-sampling: perf record -F 1000 -e 6-instructions -a --overwrite b. multiplex-sampling: perf record -F 1000 -e 10-instructions -a --overwrite Guest performance overhead: --------------------------------------------------------------------------- | Test case | emulated vPMU | all passthrough | passthrough with | | | | | event filters | --------------------------------------------------------------------------- | basic-sampling | 33.62% | 4.24% | 6.21% | --------------------------------------------------------------------------- | multiplex-sampling | 79.32% | 7.34% | 10.45% | --------------------------------------------------------------------------- List of files: /linux/include/asm-generic/Kbuild

4d84667627c4ff70826b349c449bbaf63b9af4e5 - Merge tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip

Tue, 10 Feb 2026 21:00:46 +0100

Merge tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tipPull performance event updates from Ingo Molnar: "x86 PMU driver updates: - Add support for the core PMU for Intel Diamond Rapids (DMR) CPUs (Dapeng Mi) Compared to previous iterations of the Intel PMU code, there's been a lot of changes, which center around three main areas: - Introduce the OFF-MODULE RESPONSE (OMR) facility to replace the Off-Core Response (OCR) facility - New PEBS data source encoding layout - Support the new "RDPMC user disable" feature - Likewise, a large series adds uncore PMU support for Intel Diamond Rapids (DMR) CPUs (Zide Chen) This centers around these four main areas: - DMR may have two Integrated I/O and Memory Hub (IMH) dies, separate from the compute tile (CBB) dies. Each CBB and each IMH die has its own discovery domain. - Unlike prior CPUs that retrieve the global discovery table portal exclusively via PCI or MSR, DMR uses PCI for IMH PMON discovery and MSR for CBB PMON discovery. - DMR introduces several new PMON types: SCA, HAMVF, D2D_ULA, UBR, PCIE4, CRS, CPC, ITC, OTC, CMS, and PCIE6. - IIO free-running counters in DMR are MMIO-based, unlike SPR. - Also add support for Add missing PMON units for Intel Panther Lake, and support Nova Lake (NVL), which largely maps to Panther Lake. (Zide Chen) - KVM integration: Add support for mediated vPMUs (by Kan Liang and Sean Christopherson, with fixes and cleanups by Peter Zijlstra, Sandipan Das and Mingwei Zhang) - Add Intel cstate driver to support for Wildcat Lake (WCL) CPUs, which are a low-power variant of Panther Lake (Zide Chen) - Add core, cstate and MSR PMU support for the Airmont NP Intel CPU (aka MaxLinear Lightning Mountain), which maps to the existing Airmont code (Martin Schiller) Performance enhancements: - Speed up kexec shutdown by avoiding unnecessary cross CPU calls (Jan H. Schönherr) - Fix slow perf_event_task_exit() with LBR callstacks (Namhyung Kim) User-space stack unwinding support: - Various cleanups and refactorings in preparation to generalize the unwinding code for other architectures (Jens Remus) Uprobes updates: - Transition from kmap_atomic to kmap_local_page (Keke Ming) - Fix incorrect lockdep condition in filter_chain() (Breno Leitao) - Fix XOL allocation failure for 32-bit tasks (Oleg Nesterov) Misc fixes and cleanups: - s390: Remove kvm_types.h from Kbuild (Randy Dunlap) - x86/intel/uncore: Convert comma to semicolon (Chen Ni) - x86/uncore: Clean up const mismatch (Greg Kroah-Hartman) - x86/ibs: Fix typo in dc_l2tlb_miss comment (Xiang-Bin Shi)"* tag 'perf-core-2026-02-09' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (58 commits) s390: remove kvm_types.h from Kbuild uprobes: Fix incorrect lockdep condition in filter_chain() x86/ibs: Fix typo in dc_l2tlb_miss comment x86/uprobes: Fix XOL allocation failure for 32-bit tasks perf/x86/intel/uncore: Convert comma to semicolon perf/x86/intel: Add support for rdpmc user disable feature perf/x86: Use macros to replace magic numbers in attr_rdpmc perf/x86/intel: Add core PMU support for Novalake perf/x86/intel: Add support for PEBS memory auxiliary info field in NVL perf/x86/intel: Add core PMU support for DMR perf/x86/intel: Add support for PEBS memory auxiliary info field in DMR perf/x86/intel: Support the 4 new OMR MSRs introduced in DMR and NVL perf/core: Fix slow perf_event_task_exit() with LBR callstacks perf/core: Speed up kexec shutdown by avoiding unnecessary cross CPU calls uprobes: use kmap_local_page() for temporary page mappings arm/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol() mips/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol() arm64/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol() riscv/uprobes: use kmap_local_page() in arch_uprobe_copy_ixol() perf/x86/intel/uncore: Add Nova Lake support ... List of files: /linux/include/asm-generic/Kbuild

01122b89361e565b3c88b9fbebe92dc5c7420cb7 - perf: Use EXPORT_SYMBOL_FOR_KVM() for the mediated APIs

Wed, 17 Dec 2025 13:23:59 +0100

perf: Use EXPORT_SYMBOL_FOR_KVM() for the mediated APIsSigned-off-by: Peter Zijlstra (Intel) Link: https://patch.msgid.link/20251208115156.GE3707891@noisy.programming.kicks-ass.net List of files: /linux/include/asm-generic/Kbuild

cb9f145f638d7afa633632a9290d6ad06caeb8ee - Merge remote-tracking branch 'drm/drm-next' into msm-next-robclark

Sat, 01 Nov 2025 13:47:30 +0100

Merge remote-tracking branch 'drm/drm-next' into msm-next-robclarkBack-merge drm-next to get caught up.Signed-off-by: Rob Clark List of files: /linux/include/asm-generic/Kbuild

f088104d837a991c65e51fa30bb4196169b3244d - Merge drm/drm-next into drm-intel-gt-next

Tue, 16 Sep 2025 12:53:20 +0200

Merge drm/drm-next into drm-intel-gt-nextBackmerge in order to get the commit: 048832a3f400 ("drm/i915: Refactor shmem_pwrite() to use kiocb and write_iter")To drm-intel-gt-next as there are followup fixes to be applied.Signed-off-by: Joonas Lahtinen List of files: /linux/include/asm-generic/Kbuild

a53d0cf7f1cb3182ad533ff5cacfa5fd29c419ad - Merge commit 'linus' into core/bugs, to resolve conflicts

Tue, 05 Aug 2025 11:15:34 +0200

Merge commit 'linus' into core/bugs, to resolve conflictsResolve conflicts with this commit that was developed in parallelduring the merge window: 8c8efa93db68 ("x86/bug: Add ARCH_WARN_ASM macro for BUG/WARN asm code sharing with Rust") Conflicts: arch/riscv/include/asm/bug.h arch/x86/include/asm/bug.hSigned-off-by: Ingo Molnar List of files: /linux/include/asm-generic/Kbuild

8b87f67b4c87452e21721887fa8dec1f4c6b2b7c - Merge branch 'next' into for-linus

Wed, 08 Oct 2025 06:53:13 +0200

Merge branch 'next' into for-linusPrepare input updates for 6.18 merge window. List of files: /linux/include/asm-generic/Kbuild

4b051897df2375414587a245ecb9bb1a4d26b3b8 - Merge tag 'v6.17-rc2' into HEAD

Thu, 21 Aug 2025 20:46:49 +0200

Merge tag 'v6.17-rc2' into HEADSync up with mainline to bring in changes to include/linux/sprintf.h List of files: /linux/include/asm-generic/Kbuild

d325efac5938efa3c2a25df72a1bd1af16cd0ed8 - Merge branch 'for-6.18/core' into for-linus

Tue, 30 Sep 2025 16:31:10 +0200

Merge branch 'for-6.18/core' into for-linus- allow HID-BPF to rebind a driver to hid-multitouch (Benjamin Tissoires)- Change hid_driver to use a const char* for .name (Rahul Rameshbabu) List of files: /linux/include/asm-generic/Kbuild

71b28769d708f20046fc6f853cf93fb88a8b6e11 - Merge remote-tracking branch 'origin' into for-6.18/intel-thc-hid

Fri, 19 Sep 2025 17:08:20 +0200

Merge remote-tracking branch 'origin' into for-6.18/intel-thc-hidNeeded as a basisi for followup support for quicki2c advanced BIOS features.Signed-off-by: Jiri Kosina List of files: /linux/include/asm-generic/Kbuild

b4d90dbc4c1bc4bd3eb2d2989330af0eb95c98e8 - Merge drm/drm-next into drm-misc-next-fixes

Mon, 15 Sep 2025 10:23:28 +0200

Merge drm/drm-next into drm-misc-next-fixesBackmerging to drm-misc-next-fixes to get features and fixes fromv6.17-rc6.Signed-off-by: Thomas Zimmermann List of files: /linux/include/asm-generic/Kbuild

702fdf3513b045f596f836d9a4b8672c76f11834 - Merge drm/drm-next into drm-intel-next

Wed, 10 Sep 2025 14:01:42 +0200

Merge drm/drm-next into drm-intel-nextCatching up with some display dependencies.Signed-off-by: Rodrigo Vivi List of files: /linux/include/asm-generic/Kbuild