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| author | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-06-12 16:51:59 +0300 |
|---|---|---|
| committer | Dmitry Baryshkov <dmitry.baryshkov@linaro.org> | 2024-06-12 16:52:39 +0300 |
| commit | 92815da4576a495cb6362cdfb132152fccc2222d (patch) | |
| tree | aab359ebf2ab210e9455b1d21d8298ceb81080c0 /include/linux/compiler_attributes.h | |
| parent | aeacc39e2088a15ee31c8af4f68c84981fa08eb7 (diff) | |
| parent | 6b4468b0c6ba37a16795da567b58dc80bc7fb439 (diff) | |
Merge remote-tracking branch 'drm-misc/drm-misc-next' into HEAD
Merge drm-misc-next tree into the msm-next tree in order to be able to
use HDMI connector framework for the MSM HDMI driver.
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 */ |