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Diffstat (limited to 'Documentation/dev-tools/kcsan.rst')
| -rw-r--r-- | Documentation/dev-tools/kcsan.rst | 9 |
1 files changed, 1 insertions, 8 deletions
diff --git a/Documentation/dev-tools/kcsan.rst b/Documentation/dev-tools/kcsan.rst index f4b5766f12cc..ce4bbd918648 100644 --- a/Documentation/dev-tools/kcsan.rst +++ b/Documentation/dev-tools/kcsan.rst @@ -8,8 +8,7 @@ approach to detect races. KCSAN's primary purpose is to detect `data races`_. Usage ----- -KCSAN is supported in both GCC and Clang. With GCC it requires version 7.3.0 or -later. With Clang it requires version 7.0.0 or later. +KCSAN requires Clang version 11 or later. To enable KCSAN configure the kernel with:: @@ -121,12 +120,6 @@ the below options are available: static __no_kcsan_or_inline void foo(void) { ... - Note: Older compiler versions (GCC < 9) also do not always honor the - ``__no_kcsan`` attribute on regular ``inline`` functions. If false positives - with these compilers cannot be tolerated, for small functions where - ``__always_inline`` would be appropriate, ``__no_kcsan_or_inline`` should be - preferred instead. - * To disable data race detection for a particular compilation unit, add to the ``Makefile``:: |