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| author | Linus Torvalds <torvalds@linux-foundation.org> | 2021-01-04 10:47:38 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2021-01-04 10:47:38 -0800 |
| commit | f4f6a2e329523e1a795e5e5c0799feee997aa053 (patch) | |
| tree | fefe562edc36631a79f5af415f9f6088791fcfef /include/linux/compiler_attributes.h | |
| parent | e71ba9452f0b5b2e8dc8aa5445198cd9214a6a62 (diff) | |
| parent | 1967939462641d8b36bcb3fcf06d48e66cd67a4f (diff) | |
| download | lwn-f4f6a2e329523e1a795e5e5c0799feee997aa053.tar.gz lwn-f4f6a2e329523e1a795e5e5c0799feee997aa053.zip | |
Merge tag 'compiler-attributes-for-linus-v5.11' of git://github.com/ojeda/linux
Pull ENABLE_MUST_CHECK removal from Miguel Ojeda:
"Remove CONFIG_ENABLE_MUST_CHECK (Masahiro Yamada)"
Note that this removes the config option by making the must-check
unconditional, not by removing must check itself.
* tag 'compiler-attributes-for-linus-v5.11' of git://github.com/ojeda/linux:
Compiler Attributes: remove CONFIG_ENABLE_MUST_CHECK
Diffstat (limited to 'include/linux/compiler_attributes.h')
| -rw-r--r-- | include/linux/compiler_attributes.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/linux/compiler_attributes.h b/include/linux/compiler_attributes.h index b2a3f4f641a7..ea5e04e75845 100644 --- a/include/linux/compiler_attributes.h +++ b/include/linux/compiler_attributes.h @@ -273,6 +273,12 @@ #define __used __attribute__((__used__)) /* + * 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 + */ +#define __must_check __attribute__((__warn_unused_result__)) + +/* * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Function-Attributes.html#index-weak-function-attribute * gcc: https://gcc.gnu.org/onlinedocs/gcc/Common-Variable-Attributes.html#index-weak-variable-attribute */ |