Hi Linus, please pull these update to Kbuild for v6.19. This is my first pull request, so please let me know if anything is incorrect and not matching your standards. All changes have been in -next, most for several cycles without reported problems. Non-native kbuild changes are related to addition of -fms-extensions and a conversion example; as well as for the userspace CC_CAN_LINK addition. Thanks and kind regards, Nicolas ---------------------------------------------------------------- The following changes since commit 211ddde0823f1442e4ad052a2f30f050145ccada: Linux 6.18-rc2 (2025-10-19 15:19:16 -1000) are available in the Git repository at: ssh://git@gitolite.kernel.org/pub/scm/linux/kernel/git/kbuild/linux.git tags/kbuild-6.19-1 for you to fetch changes up to 2a9c8c0b59d366acabb8f891e84569376f3e2709: kbuild: add target to build a cpio containing modules (2025-11-26 21:56:14 +0100) ---------------------------------------------------------------- Kbuild updates for v6.19 - Enable -fms-extensions, allowing anonymous use of tagged struct or union in struct/union (tag kbuild-ms-extensions-6.19). An exemplary conversion patch is added here, too (btrfs). - Introduce architecture-specific CC_CAN_LINK and flags for userprogs - Add new packaging target 'modules-cpio-pkg' for building a initramfs cpio w/ kmods - Handle included .c files in gen_compile_commands - Minor kbuild changes: - Use objtree for module signing key path, fixing oot kmod signing - Improve documentation of KBUILD_BUILD_TIMESTAMP - Reuse KBUILD_USERCFLAGS for UAPI, instead of defining twice - Rename scripts/Makefile.extrawarn to Makefile.warn - Drop obsolete types.h check from headers_check.pl - Remove outdated config leak ignore entries Signed-off-by: Nicolas Schier ---------------------------------------------------------------- Ahmad Fatoum (1): initramfs: add gen_init_cpio to hostprogs unconditionally Gang Yan (1): kbuild: doc: improve KBUILD_BUILD_TIMESTAMP documentation Mikhail Malyshev (1): kbuild: Use objtree for module signing key path Nathan Chancellor (4): jfs: Rename _inline to avoid conflict with clang's '-fms-extensions' kbuild: Add '-fms-extensions' to areas with dedicated CFLAGS kbuild: Rename Makefile.extrawarn to Makefile.warn kbuild: uapi: Drop types.h check from headers_check.pl Nicolas Schier (3): Merge tag 'kbuild-ms-extensions-6.19' into kbuild-next MAINTAINERS, .mailmap: Update mail address for Nicolas Schier scripts: headers_install.sh: Remove two outdated config leak ignore entries Pat Somaru (1): scripts/clang-tools: Handle included .c files in gen_compile_commands Rasmus Villemoes (2): Kbuild: enable -fms-extensions btrfs: send: make use of -fms-extensions for defining struct fs_path Sascha Hauer (1): kbuild: add target to build a cpio containing modules Thomas Weißschuh (4): kbuild: uapi: reuse KBUILD_USERCFLAGS kbuild: don't enable CC_CAN_LINK if the dummy program generates warnings init: deduplicate cc-can-link.sh invocations kbuild: allow architectures to override CC_CAN_LINK .mailmap | 4 +- Documentation/kbuild/kbuild.rst | 10 +- MAINTAINERS | 2 +- Makefile | 18 +++- arch/arm64/kernel/vdso32/Makefile | 3 +- arch/loongarch/vdso/Makefile | 2 +- arch/parisc/boot/compressed/Makefile | 2 +- arch/powerpc/boot/Makefile | 3 +- arch/s390/Makefile | 3 +- arch/s390/purgatory/Makefile | 3 +- arch/x86/Makefile | 4 +- arch/x86/boot/compressed/Makefile | 7 +- drivers/firmware/efi/libstub/Makefile | 4 +- drivers/gpu/drm/Makefile | 2 +- fs/btrfs/send.c | 39 ++++---- fs/jfs/jfs_incore.h | 6 +- init/Kconfig | 8 +- scripts/Kconfig.include | 3 + scripts/Makefile.modinst | 2 +- scripts/Makefile.package | 20 ++++ scripts/{Makefile.extrawarn => Makefile.warn} | 4 +- scripts/cc-can-link.sh | 2 +- scripts/clang-tools/gen_compile_commands.py | 135 ++++++++++++++++++++++++-- scripts/headers_install.sh | 2 - usr/Makefile | 4 +- usr/include/Makefile | 11 +-- usr/include/headers_check.pl | 63 ------------ 27 files changed, 236 insertions(+), 130 deletions(-) rename scripts/{Makefile.extrawarn => Makefile.warn} (98%)