linux/scripts, branch v6.18

Merge tag 'rust-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2025-11-14T23:36:15Z

Pull Rust fix from Miguel Ojeda: - Fix a Rust 1.91.0 build issue due to 'bindings.o' not containing DWARF debug information anymore by teaching gendwarfksyms to skip object files without exports * tag 'rust-fixes-6.18-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: gendwarfksyms: Skip files with no exports

gendwarfksyms: Skip files with no exports

2025-11-11T19:37:11Z

Starting with Rust 1.91.0 (released 2025-10-30), in upstream commit ab91a63d403b ("Ignore intrinsic calls in cross-crate-inlining cost model") [1][2], `bindings.o` stops containing DWARF debug information because the `Default` implementations contained `write_bytes()` calls which are now ignored in that cost model (note that `CLIPPY=1` does not reproduce it). This means `gendwarfksyms` complains: RUSTC L rust/bindings.o error: gendwarfksyms: process_module: dwarf_get_units failed: no debugging information? There are several alternatives that would work here: conditionally skipping in the cases needed (but that is subtle and brittle), forcing DWARF generation with e.g. a dummy `static` (ugly and we may need to do it in several crates), skipping the call to the tool in the Kbuild command when there are no exports (fine) or teaching the tool to do so itself (simple and clean). Thus do the last one: don't attempt to process files if we have no symbol versions to calculate. [ I used the commit log of my patch linked below since it explained the root issue and expanded it a bit more to summarize the alternatives. - Miguel ] Cc: stable@vger.kernel.org # Needed in 6.17.y. Reported-by: Haiyue Wang Closes: https://lore.kernel.org/rust-for-linux/b8c1c73d-bf8b-4bf2-beb1-84ffdcd60547@163.com/ Suggested-by: Miguel Ojeda Link: https://lore.kernel.org/rust-for-linux/CANiq72nKC5r24VHAp9oUPR1HVPqT+=0ab9N0w6GqTF-kJOeiSw@mail.gmail.com/ Link: https://github.com/rust-lang/rust/commit/ab91a63d403b0105cacd72809cd292a72984ed99 [1] Link: https://github.com/rust-lang/rust/pull/145910 [2] Signed-off-by: Sami Tolvanen Tested-by: Haiyue Wang Reviewed-by: Alice Ryhl Link: https://patch.msgid.link/20251110131913.1789896-1-ojeda@kernel.org Signed-off-by: Miguel Ojeda

scripts/decode_stacktrace.sh: fix build ID and PC source parsing

2025-11-10T05:19:45Z

Support for parsing PC source info in stacktraces (e.g. '(P)') was added in commit 2bff77c665ed ("scripts/decode_stacktrace.sh: fix decoding of lines with an additional info"). However, this logic was placed after the build ID processing. This incorrect order fails to parse lines containing both elements, e.g.: drm_gem_mmap_obj+0x114/0x200 [drm 03d0564e0529947d67bb2008c3548be77279fd27] (P) This patch fixes the problem by extracting the PC source info first and then processing the module build ID. With this change, the line above is now properly parsed as such: drm_gem_mmap_obj (./include/linux/mmap_lock.h:212 ./include/linux/mm.h:811 drivers/gpu/drm/drm_gem.c:1177) drm (P) While here, also add a brief explanation the build ID section. Link: https://lkml.kernel.org/r/20251030010347.2731925-1-cmllamas@google.com Fixes: 2bff77c665ed ("scripts/decode_stacktrace.sh: fix decoding of lines with an additional info") Signed-off-by: Carlos Llamas Reviewed-by: Matthieu Baerts (NGI0) Reviewed-by: Luca Ceresoli Cc: Breno Leitao Cc: Catalin Marinas Cc: Marc Rutland Cc: Mark Brown Cc: Matthieu Baerts Cc: Miroslav Benes Cc: Puranjay Mohan Cc: Signed-off-by: Andrew Morton

kbuild: Let kernel-doc.py use PYTHON3 override

2025-11-09T02:42:22Z

It is possible to force a specific version of python to be used when building the kernel by passing PYTHON3= on the make command line. However kernel-doc.py is currently called with python3 hard-coded and thus ignores this setting. Use $(PYTHON3) to run $(KERNELDOC) so that the desired version of python is used. Signed-off-by: Jean Delvare Reviewed-by: Nicolas Schier Reviewed-by: Mauro Carvalho Chehab Link: https://patch.msgid.link/20251107192933.2bfe9e57@endymion Signed-off-by: Nathan Chancellor

kbuild: Strip trailing padding bytes from modules.builtin.modinfo

2025-11-06T16:50:23Z

After commit d50f21091358 ("kbuild: align modinfo section for Secureboot Authenticode EDK2 compat"), running modules_install with certain versions of kmod (such as 29.1 in Ubuntu Jammy) in certain configurations may fail with: depmod: ERROR: kmod_builtin_iter_next: unexpected string without modname prefix The additional padding bytes to ensure .modinfo is aligned within vmlinux.unstripped are unexpected by kmod, as this section has always just been null-terminated strings. Strip the trailing padding bytes from modules.builtin.modinfo after it has been extracted from vmlinux.unstripped to restore the format that kmod expects while keeping .modinfo aligned within vmlinux.unstripped to avoid regressing the Authenticode calculation fix for EDK2. Cc: stable@vger.kernel.org Fixes: d50f21091358 ("kbuild: align modinfo section for Secureboot Authenticode EDK2 compat") Reported-by: Omar Sandoval Reported-by: Samir M Reported-by: Venkat Rao Bagalkote Closes: https://lore.kernel.org/7fef7507-ad64-4e51-9bb8-c9fb6532e51e@linux.ibm.com/ Tested-by: Omar Sandoval Tested-by: Samir M Tested-by: Venkat Rao Bagalkote Reviewed-by: Nicolas Schier Link: https://patch.msgid.link/20251105-kbuild-fix-builtin-modinfo-for-kmod-v1-1-b419d8ad4606@kernel.org Signed-off-by: Nathan Chancellor

kconfig/nconf: Initialize the default locale at startup

2025-11-01T04:23:22Z

Fix bug where make nconfig doesn't initialize the default locale, which causes ncurses menu borders to be displayed incorrectly (lqqqqk) in UTF-8 terminals that don't support VT100 ACS by default, such as PuTTY. Signed-off-by: Jakub Horký Link: https://patch.msgid.link/20251014144405.3975275-2-jakub.git@horky.net [nathan: Alphabetize locale.h include] Signed-off-by: Nathan Chancellor

kconfig/mconf: Initialize the default locale at startup

2025-11-01T04:21:23Z

Fix bug where make menuconfig doesn't initialize the default locale, which causes ncurses menu borders to be displayed incorrectly (lqqqqk) in UTF-8 terminals that don't support VT100 ACS by default, such as PuTTY. Signed-off-by: Jakub Horký Link: https://patch.msgid.link/20251014154933.3990990-1-jakub.git@horky.net [nathan: Alphabetize locale.h include] Signed-off-by: Nathan Chancellor

kbuild: install-extmod-build: Fix when given dir outside the build dir

2025-10-25T20:59:20Z

Commit b5e395653546 ("kbuild: install-extmod-build: Fix build when specifying KBUILD_OUTPUT") tried to address the "build" variable expecting a relative path by using `realpath --relative-base=.`, but this only works when the given directory is below the current directory. `realpath --relative-to=.` will return a relative path in all cases. Fixes: b5e395653546 ("kbuild: install-extmod-build: Fix build when specifying KBUILD_OUTPUT") Signed-off-by: James Le Cuirot Reviewed-by: Nicolas Schier Link: https://patch.msgid.link/20251016091417.9985-1-chewi@gentoo.org Signed-off-by: Nathan Chancellor

Merge tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux

2025-10-11T22:47:12Z

Pull Kbuild fixes from Nathan Chancellor: - Fix UAPI types check in headers_check.pl - Only enable -Werror for hostprogs with CONFIG_WERROR / W=e - Ignore fsync() error when output of gen_init_cpio is a pipe - Several little build fixes for recent modules.builtin.modinfo series * tag 'kbuild-fixes-6.18-1' of git://git.kernel.org/pub/scm/linux/kernel/git/kbuild/linux: kbuild: Use '--strip-unneeded-symbol' for removing module device table symbols s390/vmlinux.lds.S: Move .vmlinux.info to end of allocatable sections kbuild: Add '.rel.*' strip pattern for vmlinux kbuild: Restore pattern to avoid stripping .rela.dyn from vmlinux gen_init_cpio: Ignore fsync() returning EINVAL on pipes scripts/Makefile.extrawarn: Respect CONFIG_WERROR / W=e for hostprogs kbuild: uapi: Strip comments before size type check

Merge tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf

2025-10-11T17:31:38Z

Pull bpf fixes from Alexei Starovoitov: - Finish constification of 1st parameter of bpf_d_path() (Rong Tao) - Harden userspace-supplied xdp_desc validation (Alexander Lobakin) - Fix metadata_dst leak in __bpf_redirect_neigh_v{4,6}() (Daniel Borkmann) - Fix undefined behavior in {get,put}_unaligned_be32() (Eric Biggers) - Use correct context to unpin bpf hash map with special types (KaFai Wan) * tag 'bpf-fixes' of git://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf: selftests/bpf: Add test for unpinning htab with internal timer struct bpf: Avoid RCU context warning when unpinning htab with internal structs xsk: Harden userspace-supplied xdp_desc validation bpf: Fix metadata_dst leak __bpf_redirect_neigh_v{4,6} libbpf: Fix undefined behavior in {get,put}_unaligned_be32() bpf: Finish constification of 1st parameter of bpf_d_path()