diff options
| author | Maxime Ripard <[email protected]> | 2024-07-04 15:19:33 +0200 |
|---|---|---|
| committer | Maxime Ripard <[email protected]> | 2024-07-04 15:19:33 +0200 |
| commit | afeea2758b4f1210361ce2a91d8fa3e7df606ad2 (patch) | |
| tree | 969164f4e52fac6d4ec7d275540e702375e80950 /include/linux/compiler_attributes.h | |
| parent | 539d33b5783804f22a62bd62ff463dfd1cef4265 (diff) | |
| parent | 896868eded124059023be0af92d68cdaf9b4de70 (diff) | |
Merge drm-misc-next-2024-07-04 into drm-misc-next-fixes
Let's start the drm-misc-next-fixes cycle.
Signed-off-by: Maxime Ripard <[email protected]>
Diffstat (limited to 'include/linux/compiler_attributes.h')
| -rw-r--r-- | include/linux/compiler_attributes.h | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h index 8bdf6e0918c1..32284cd26d52 100644 --- a/include/linux/compiler_attributes.h +++ b/include/linux/compiler_attributes.h @@ -362,6 +362,19 @@ #define __used __attribute__((__used__)) /* + * The __used attribute guarantees that the attributed variable will be + * always emitted by a compiler. It doesn't prevent the compiler from + * throwing 'unused' warnings when it can't detect how the variable is + * actually used. It's a compiler implementation details either emit + * the warning in that case or not. + * + * The combination of both 'used' and 'unused' attributes ensures that + * the variable would be emitted, and will not trigger 'unused' warnings. + * The attribute is applicable for functions, static and global variables. + */ +#define __always_used __used __maybe_unused + +/* * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-warn_005funused_005fresult-function-attribute * clang: https://clang.llvm.org/docs/AttributeReference.html#nodiscard-warn-unused-result */ |