diff options
| author | David Rientjes <rientjes@google.com> | 2017-06-06 13:36:24 -0700 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2018-07-22 14:25:51 +0200 |
| commit | f3af03e9c7f06275c3236b08bdcdf561f88fb1fa (patch) | |
| tree | 15a6dfd2de99436364a98c5b7c01a1b34ae8fbad /include | |
| parent | ecb99897516f0bb433f3e79df3b1958c80ac4810 (diff) | |
compiler, clang: suppress warning for unused static inline functions
commit abb2ea7dfd82451d85ce669b811310c05ab5ca46 upstream.
GCC explicitly does not warn for unused static inline functions for
-Wunused-function. The manual states:
Warn whenever a static function is declared but not defined or
a non-inline static function is unused.
Clang does warn for static inline functions that are unused.
It turns out that suppressing the warnings avoids potentially complex
#ifdef directives, which also reduces LOC.
Suppress the warning for clang.
Signed-off-by: David Rientjes <rientjes@google.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/compiler-clang.h | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/include/linux/compiler-clang.h b/include/linux/compiler-clang.h index de179993e039..ea9126006a69 100644 --- a/include/linux/compiler-clang.h +++ b/include/linux/compiler-clang.h @@ -15,3 +15,10 @@ * with any version that can compile the kernel */ #define __UNIQUE_ID(prefix) __PASTE(__PASTE(__UNIQUE_ID_, prefix), __COUNTER__) + +/* + * GCC does not warn about unused static inline functions for + * -Wunused-function. This turns out to avoid the need for complex #ifdef + * directives. Suppress the warning in clang as well. + */ +#define inline inline __attribute__((unused)) |