noinstr functions should never be instrumented, so make KMSAN skip them by applying the __no_sanitize_memory attribute. Signed-off-by: Alexander Potapenko <glider@xxxxxxxxxx> --- v2: -- moved this patch earlier in the series per Mark Rutland's request Link: https://linux-review.googlesource.com/id/I3c9abe860b97b49bc0c8026918b17a50448dec0d --- include/linux/compiler_types.h | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h index 1c2c33ae1b37d..a9ba5edd8208b 100644 --- a/include/linux/compiler_types.h +++ b/include/linux/compiler_types.h @@ -227,7 +227,8 @@ struct ftrace_likely_data { /* Section for code which can't be instrumented at all */ #define noinstr \ noinline notrace __attribute((__section__(".noinstr.text"))) \ - __no_kcsan __no_sanitize_address __no_profile __no_sanitize_coverage + __no_kcsan __no_sanitize_address __no_profile __no_sanitize_coverage \ + __no_sanitize_memory #endif /* __KERNEL__ */ -- 2.36.0.rc2.479.g8af0fa9b8e-goog
