summaryrefslogtreecommitdiffstats
diff options
context:
space:
mode:
authorAlexander Potapenko <glider@google.com>2022-09-15 17:03:42 +0200
committerAndrew Morton <akpm@linux-foundation.org>2022-10-03 14:03:19 -0700
commit5de0ce85f5a4d2883eae6f48eb015bc5dfbd91e9 (patch)
treedb23d35c226287a75564d84174b3152057f7d16a
parent9b448bc25b776daab3215393c3ce6953dd3bb8ad (diff)
downloadlinux-5de0ce85f5a4d2883eae6f48eb015bc5dfbd91e9.tar.bz2
kmsan: mark noinstr as __no_sanitize_memory
noinstr functions should never be instrumented, so make KMSAN skip them by applying the __no_sanitize_memory attribute. Link: https://lkml.kernel.org/r/20220915150417.722975-9-glider@google.com Signed-off-by: Alexander Potapenko <glider@google.com> Reviewed-by: Marco Elver <elver@google.com> Cc: Alexander Viro <viro@zeniv.linux.org.uk> Cc: Alexei Starovoitov <ast@kernel.org> Cc: Andrey Konovalov <andreyknvl@gmail.com> Cc: Andrey Konovalov <andreyknvl@google.com> Cc: Andy Lutomirski <luto@kernel.org> Cc: Arnd Bergmann <arnd@arndb.de> Cc: Borislav Petkov <bp@alien8.de> Cc: Christoph Hellwig <hch@lst.de> Cc: Christoph Lameter <cl@linux.com> Cc: David Rientjes <rientjes@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Cc: Eric Biggers <ebiggers@google.com> Cc: Eric Biggers <ebiggers@kernel.org> Cc: Eric Dumazet <edumazet@google.com> Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Ilya Leoshkevich <iii@linux.ibm.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: Jens Axboe <axboe@kernel.dk> Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com> Cc: Kees Cook <keescook@chromium.org> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Matthew Wilcox <willy@infradead.org> Cc: Michael S. Tsirkin <mst@redhat.com> Cc: Pekka Enberg <penberg@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Petr Mladek <pmladek@suse.com> Cc: Stephen Rothwell <sfr@canb.auug.org.au> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Vasily Gorbik <gor@linux.ibm.com> Cc: Vegard Nossum <vegard.nossum@oracle.com> Cc: Vlastimil Babka <vbabka@suse.cz> Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
-rw-r--r--include/linux/compiler_types.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/linux/compiler_types.h b/include/linux/compiler_types.h
index 4f2a819fd60a..015207a6e2bf 100644
--- a/include/linux/compiler_types.h
+++ b/include/linux/compiler_types.h
@@ -229,7 +229,8 @@ 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__ */