user/sven/linux.git/scripts, branch v6.16

Merge tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux

2025-07-19T16:22:26Z

Pull Rust fixes from Miguel Ojeda: "Toolchain and infrastructure: - Fix build and modpost confusion for the upcoming Rust 1.89.0 release - Clean objtool warning for the upcoming Rust 1.89.0 release by adding one more noreturn function 'kernel' crate: - Fix build error when using generics in the 'try_{,pin_}init!' macros" * tag 'rust-fixes-6.16-2' of git://git.kernel.org/pub/scm/linux/kernel/git/ojeda/linux: rust: use `#[used(compiler)]` to fix build and `modpost` with Rust >= 1.89.0 objtool/rust: add one more `noreturn` Rust function for Rust 1.89.0 rust: init: Fix generics in *_init! macros

rust: use `#[used(compiler)]` to fix build and `modpost` with Rust >= 1.89.0

2025-07-14T21:30:44Z

Starting with Rust 1.89.0 (expected 2025-08-07), the Rust compiler fails to build the `rusttest` target due to undefined references such as: kernel...-cgu.0:(.text....+0x116): undefined reference to `rust_helper_kunit_get_current_test' Moreover, tooling like `modpost` gets confused: WARNING: modpost: missing MODULE_DESCRIPTION() in drivers/gpu/drm/nova/nova.o ERROR: modpost: missing MODULE_LICENSE() in drivers/gpu/nova-core/nova_core.o The reason behind both issues is that the Rust compiler will now [1] treat `#[used]` as `#[used(linker)]` instead of `#[used(compiler)]` for our targets. This means that the retain section flag (`R`, `SHF_GNU_RETAIN`) will be used and that they will be marked as `unique` too, with different IDs. In turn, that means we end up with undefined references that did not get discarded in `rusttest` and that multiple `.modinfo` sections are generated, which confuse tooling like `modpost` because they only expect one. Thus start using `#[used(compiler)]` to keep the previous behavior and to be explicit about what we want. Sadly, it is an unstable feature (`used_with_arg`) [2] -- we will talk to upstream Rust about it. The good news is that it has been available for a long time (Rust >= 1.60) [3]. The changes should also be fine for previous Rust versions, since they behave the same way as before [4]. Alternatively, we could use `#[no_mangle]` or `#[export_name = ...]` since those still behave like `#[used(compiler)]`, but of course it is not really what we want to express, and it requires other changes to avoid symbol conflicts. Cc: David Wood Cc: Wesley Wiser Cc: stable@vger.kernel.org # Needed in 6.12.y and later (Rust is pinned in older LTSs). Link: https://github.com/rust-lang/rust/pull/140872 [1] Link: https://github.com/rust-lang/rust/issues/93798 [2] Link: https://github.com/rust-lang/rust/pull/91504 [3] Link: https://godbolt.org/z/sxzWTMfzW [4] Reviewed-by: Alice Ryhl Acked-by: Björn Roy Baron Link: https://lore.kernel.org/r/20250712160103.1244945-3-ojeda@kernel.org Signed-off-by: Miguel Ojeda

scripts: gdb: vfs: support external dentry names

2025-07-10T04:07:54Z

d_shortname of struct dentry only reserves D_NAME_INLINE_LEN characters and contains garbage for longer names. Use d_name instead, which always references the valid name. Link: https://lore.kernel.org/all/20250525213709.878287-2-illia@yshyn.com/ Link: https://lkml.kernel.org/r/20250629003811.2420418-1-illia@yshyn.com Fixes: 79300ac805b6 ("scripts/gdb: fix dentry_name() lookup") Signed-off-by: Illia Ostapyshyn Tested-by: Florian Fainelli Reviewed-by: Florian Fainelli Cc: Al Viro Cc: Christian Brauner Cc: Jan Kara Cc: Jan Kiszka Cc: Kieran Bingham Cc: Signed-off-by: Andrew Morton

scripts/gdb: de-reference per-CPU MCE interrupts

2025-07-10T04:07:53Z

The per-CPU MCE interrupts are looked up by reference and need to be de-referenced before printing, otherwise we print the addresses of the variables instead of their contents: MCE: 18379471554386948492 Machine check exceptions MCP: 18379471554386948488 Machine check polls The corrected output looks like this instead now: MCE: 0 Machine check exceptions MCP: 1 Machine check polls Link: https://lkml.kernel.org/r/20250625021109.1057046-1-florian.fainelli@broadcom.com Link: https://lkml.kernel.org/r/20250624030020.882472-1-florian.fainelli@broadcom.com Fixes: b0969d7687a7 ("scripts/gdb: print interrupts") Signed-off-by: Florian Fainelli Cc: Jan Kiszka Cc: Kieran Bingham Cc: Signed-off-by: Andrew Morton

scripts/gdb: fix interrupts.py after maple tree conversion

2025-07-10T04:07:53Z

In commit 721255b9826b ("genirq: Use a maple tree for interrupt descriptor management"), the irq_desc_tree was replaced with a sparse_irqs tree using a maple tree structure. Since the script looked for the irq_desc_tree symbol which is no longer available, no interrupts would be printed and the script output would not be useful anymore. In addition to looking up the correct symbol (sparse_irqs), a new module (mapletree.py) is added whose mtree_load() implementation is largely copied after the C version and uses the same variable and intermediate function names wherever possible to ensure that both the C and Python version be updated in the future. This restores the scripts' output to match that of /proc/interrupts. Link: https://lkml.kernel.org/r/20250625021020.1056930-1-florian.fainelli@broadcom.com Fixes: 721255b9826b ("genirq: Use a maple tree for interrupt descriptor management") Signed-off-by: Florian Fainelli Cc: Jan Kiszka Cc: Kieran Bingham Cc: Shanker Donthineni Cc: Thomas Gleinxer Cc: Signed-off-by: Andrew Morton

scripts/gdb: fix interrupts display after MCP on x86

2025-07-10T04:07:52Z

The text line would not be appended to as it should have, it should have been a '+=' but ended up being a '==', fix that. Link: https://lkml.kernel.org/r/20250623164153.746359-1-florian.fainelli@broadcom.com Fixes: b0969d7687a7 ("scripts/gdb: print interrupts") Signed-off-by: Florian Fainelli Cc: Jan Kiszka Cc: Kieran Bingham Cc: Signed-off-by: Andrew Morton

scripts/gdb: fix dentry_name() lookup

2025-06-25T22:55:03Z

The "d_iname" member was replaced with "d_shortname.string" in the commit referenced in the Fixes tag. This prevented the GDB script "lx-mount" command to properly function: (gdb) lx-mounts mount super_block devname pathname fstype options 0xff11000002d21180 0xff11000002d24800 rootfs / rootfs rw 0 0 0xff11000002e18a80 0xff11000003713000 /dev/root / ext4 rw,relatime 0 0 Python Exception : There is no member named d_iname. Error occurred in Python: There is no member named d_iname. Link: https://lkml.kernel.org/r/20250619225105.320729-1-florian.fainelli@broadcom.com Fixes: 58cf9c383c5c ("dcache: back inline names with a struct-wrapped array of unsigned long") Signed-off-by: Florian Fainelli Cc: Al Viro Cc: Jan Kara Cc: Jan Kiszka Cc: Jeff Layton Cc: Kieran Bingham Cc: Signed-off-by: Andrew Morton

gendwarfksyms: Fix structure type overrides

2025-06-15T15:49:48Z

As we always iterate through the entire die_map when expanding type strings, recursively processing referenced types in type_expand_child() is not actually necessary. Furthermore, the type_string kABI rule added in commit c9083467f7b9 ("gendwarfksyms: Add a kABI rule to override type strings") can fail to override type strings for structures due to a missing kabi_get_type_string() check in this function. Fix the issue by dropping the unnecessary recursion and moving the override check to type_expand(). Note that symbol versions are otherwise unchanged with this patch. Fixes: c9083467f7b9 ("gendwarfksyms: Add a kABI rule to override type strings") Reported-by: Giuliano Procida Signed-off-by: Sami Tolvanen Reviewed-by: Petr Pavlu Signed-off-by: Masahiro Yamada

kbuild: move warnings about linux/export.h from W=1 to W=2

2025-06-15T15:41:40Z

This hides excessive warnings, as nobody builds with W=2. Fixes: a934a57a42f6 ("scripts/misc-check: check missing #include when W=1") Fixes: 7d95680d64ac ("scripts/misc-check: check unnecessary #include when W=1") Signed-off-by: Masahiro Yamada Acked-by: Arnd Bergmann Reviewed-by: Nathan Chancellor Acked-by: Heiko Carstens

Merge tag 'kbuild-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild

2025-06-07T17:05:35Z

Pull Kbuild updates from Masahiro Yamada: - Add support for the EXPORT_SYMBOL_GPL_FOR_MODULES() macro, which exports a symbol only to specified modules - Improve ABI handling in gendwarfksyms - Forcibly link lib-y objects to vmlinux even if CONFIG_MODULES=n - Add checkers for redundant or missing inclusion - Deprecate the extra-y syntax - Fix a genksyms bug when including enum constants from *.symref files * tag 'kbuild-v6.16' of git://git.kernel.org/pub/scm/linux/kernel/git/masahiroy/linux-kbuild: (28 commits) genksyms: Fix enum consts from a reference affecting new values arch: use always-$(KBUILD_BUILTIN) for vmlinux.lds kbuild: set y instead of 1 to KBUILD_{BUILTIN,MODULES} efi/libstub: use 'targets' instead of extra-y in Makefile module: make __mod_device_table__* symbols static scripts/misc-check: check unnecessary #include when W=1 scripts/misc-check: check missing #include when W=1 scripts/misc-check: add double-quotes to satisfy shellcheck kbuild: move W=1 check for scripts/misc-check to top-level Makefile scripts/tags.sh: allow to use alternative ctags implementation kconfig: introduce menu type enum docs: symbol-namespaces: fix reST warning with literal block kbuild: link lib-y objects to vmlinux forcibly even when CONFIG_MODULES=n tinyconfig: enable CONFIG_LD_DEAD_CODE_DATA_ELIMINATION docs/core-api/symbol-namespaces: drop table of contents and section numbering modpost: check forbidden MODULE_IMPORT_NS("module:") at compile time kbuild: move kbuild syntax processing to scripts/Makefile.build Makefile: remove dependency on archscripts for header installation Documentation/kbuild: Add new gendwarfksyms kABI rules Documentation/kbuild: Drop section numbers ...