From: Qian Cai <cai@lca.pw> To: akpm@linux-foundation.org Cc: aryabinin@virtuozzo.com, glider@google.com, dvyukov@google.com, andreyknvl@google.com, kasan-dev@googlegroups.com, linux-mm@kvack.org, linux-kernel@vger.kernel.org, Qian Cai <cai@lca.pw> Subject: [PATCH] kasan: fix variable 'tag' set but not used warning Date: Thu, 7 Mar 2019 13:52:44 -0500 Message-ID: <20190307185244.54648-1-cai@lca.pw> (raw) set_tag() compiles away when CONFIG_KASAN_SW_TAGS=n, so make arch_kasan_set_tag() a static inline function to fix warnings below. mm/kasan/common.c: In function '__kasan_kmalloc': mm/kasan/common.c:475:5: warning: variable 'tag' set but not used [-Wunused-but-set-variable] u8 tag; ^~~ Signed-off-by: Qian Cai <cai@lca.pw> --- mm/kasan/kasan.h | 5 ++++- 1 file changed, 4 insertions(+), 1 deletion(-) diff --git a/mm/kasan/kasan.h b/mm/kasan/kasan.h index 3e0c11f7d7a1..3ce956efa0cb 100644 --- a/mm/kasan/kasan.h +++ b/mm/kasan/kasan.h @@ -163,7 +163,10 @@ static inline u8 random_tag(void) #endif #ifndef arch_kasan_set_tag -#define arch_kasan_set_tag(addr, tag) ((void *)(addr)) +static inline const void *arch_kasan_set_tag(const void *addr, u8 tag) +{ + return addr; +} #endif #ifndef arch_kasan_reset_tag #define arch_kasan_reset_tag(addr) ((void *)(addr)) -- 2.17.2 (Apple Git-113)
next reply index Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top 2019-03-07 18:52 Qian Cai [this message] 2019-03-08 13:28 ` Andrey Konovalov
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