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| author | Peter Zijlstra <peterz@infradead.org> | 2025-11-06 11:50:00 +0100 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2025-11-24 10:35:46 +0100 |
| commit | 39ddffc6c023e57d0b6e1b16f4f038eb344dc0da (patch) | |
| tree | 690f8e9e1e3f673eb7710b9be2c2b674f23fa31e /include/linux | |
| parent | df512b40e360b8d4f8e82d083a8e4f469904fd6b (diff) | |
| download | linux-39ddffc6c023e57d0b6e1b16f4f038eb344dc0da.tar.gz linux-39ddffc6c023e57d0b6e1b16f4f038eb344dc0da.tar.bz2 linux-39ddffc6c023e57d0b6e1b16f4f038eb344dc0da.zip | |
compiler_types: Move unused static inline functions warning to W=2
[ Upstream commit 9818af18db4bfefd320d0fef41390a616365e6f7 ]
Per Nathan, clang catches unused "static inline" functions in C files
since commit 6863f5643dd7 ("kbuild: allow Clang to find unused static
inline functions for W=1 build").
Linus said:
> So I entirely ignore W=1 issues, because I think so many of the extra
> warnings are bogus.
>
> But if this one in particular is causing more problems than most -
> some teams do seem to use W=1 as part of their test builds - it's fine
> to send me a patch that just moves bad warnings to W=2.
>
> And if anybody uses W=2 for their test builds, that's THEIR problem..
Here is the change to bump the warning from W=1 to W=2.
Fixes: 6863f5643dd7 ("kbuild: allow Clang to find unused static inline functions for W=1 build")
Signed-off-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://patch.msgid.link/20251106105000.2103276-1-andriy.shevchenko@linux.intel.com
[nathan: Adjust comment as well]
Signed-off-by: Nathan Chancellor <nathan@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'include/linux')
| -rw-r--r-- | include/linux/compiler_types.h | 5 |
1 files changed, 2 insertions, 3 deletions
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 639be0f30b45..beb2a1e1bac5 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -250,10 +250,9 @@ struct ftrace_likely_data { /* * GCC does not warn about unused static inline functions for -Wunused-function. * Suppress the warning in clang as well by using __maybe_unused, but enable it - * for W=1 build. This will allow clang to find unused functions. Remove the - * __inline_maybe_unused entirely after fixing most of -Wunused-function warnings. + * for W=2 build. This will allow clang to find unused functions. */ -#ifdef KBUILD_EXTRA_WARN1 +#ifdef KBUILD_EXTRA_WARN2 #define __inline_maybe_unused #else #define __inline_maybe_unused __maybe_unused |