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Date: Fri, 1 Jul 2022 16:22:33 +0200 From: Alexander Potapenko <glider@...gle.com> To: glider@...gle.com Cc: Alexander Viro <viro@...iv.linux.org.uk>, Alexei Starovoitov <ast@...nel.org>, Andrew Morton <akpm@...ux-foundation.org>, Andrey Konovalov <andreyknvl@...gle.com>, Andy Lutomirski <luto@...nel.org>, Arnd Bergmann <arnd@...db.de>, Borislav Petkov <bp@...en8.de>, Christoph Hellwig <hch@....de>, Christoph Lameter <cl@...ux.com>, David Rientjes <rientjes@...gle.com>, Dmitry Vyukov <dvyukov@...gle.com>, Eric Dumazet <edumazet@...gle.com>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Herbert Xu <herbert@...dor.apana.org.au>, Ilya Leoshkevich <iii@...ux.ibm.com>, Ingo Molnar <mingo@...hat.com>, Jens Axboe <axboe@...nel.dk>, Joonsoo Kim <iamjoonsoo.kim@....com>, Kees Cook <keescook@...omium.org>, Marco Elver <elver@...gle.com>, Mark Rutland <mark.rutland@....com>, Matthew Wilcox <willy@...radead.org>, "Michael S. Tsirkin" <mst@...hat.com>, Pekka Enberg <penberg@...nel.org>, Peter Zijlstra <peterz@...radead.org>, Petr Mladek <pmladek@...e.com>, Steven Rostedt <rostedt@...dmis.org>, Thomas Gleixner <tglx@...utronix.de>, Vasily Gorbik <gor@...ux.ibm.com>, Vegard Nossum <vegard.nossum@...cle.com>, Vlastimil Babka <vbabka@...e.cz>, kasan-dev@...glegroups.com, linux-mm@...ck.org, linux-arch@...r.kernel.org, linux-kernel@...r.kernel.org Subject: [PATCH v4 08/45] 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. Signed-off-by: Alexander Potapenko <glider@...gle.com> --- 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
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