[PATCH v4 08/45] kmsan: mark noinstr as __no_sanitize_memory

[Alexander Potapenko]

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 d08dfcb0ac687..fb5777e5228e7 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__ */
 
-- 
2.37.0.rc0.161.g10f37bed90-goog