linux-kernel - [PATCH 1/4] kasan: prevent tracing of tags.c

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Date:   Wed, 20 Feb 2019 13:45:26 +0100
From:   Andrey Konovalov <andreyknvl@...gle.com>
To:     Andrey Ryabinin <aryabinin@...tuozzo.com>,
        Alexander Potapenko <glider@...gle.com>,
        Dmitry Vyukov <dvyukov@...gle.com>,
        Catalin Marinas <catalin.marinas@....com>,
        Christoph Lameter <cl@...ux.com>,
        Pekka Enberg <penberg@...nel.org>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Andrew Morton <akpm@...ux-foundation.org>,
        kasan-dev@...glegroups.com, linux-mm@...ck.org,
        linux-kernel@...r.kernel.org
Cc:     Qian Cai <cai@....pw>,
        Vincenzo Frascino <vincenzo.frascino@....com>,
        Kostya Serebryany <kcc@...gle.com>,
        Evgeniy Stepanov <eugenis@...gle.com>,
        Andrey Konovalov <andreyknvl@...gle.com>
Subject: [PATCH 1/4] kasan: prevent tracing of tags.c

Similarly to 0d0c8de8 ("kasan: mark file common so ftrace doesn't trace
it") add the -pg flag to mm/kasan/tags.c to prevent conflicts with
tracing.

Reported-by: Qian Cai <cai@....pw>
Signed-off-by: Andrey Konovalov <andreyknvl@...gle.com>
---
 mm/kasan/Makefile | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/mm/kasan/Makefile b/mm/kasan/Makefile
index e2bb06c1b45e..5d1065efbd47 100644
--- a/mm/kasan/Makefile
+++ b/mm/kasan/Makefile
@@ -7,6 +7,8 @@ KCOV_INSTRUMENT := n
 
 CFLAGS_REMOVE_common.o = -pg
 CFLAGS_REMOVE_generic.o = -pg
+CFLAGS_REMOVE_tags.o = -pg
+
 # Function splitter causes unnecessary splits in __asan_load1/__asan_store1
 # see: https://gcc.gnu.org/bugzilla/show_bug.cgi?id=63533
 
-- 
2.21.0.rc0.258.g878e2cd30e-goog