kasan: fix variable 'tag' set but not used warning
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; ^~~ Link: http://lkml.kernel.org/r/20190307185244.54648-1-cai@lca.pwSigned-off-by: NQian Cai <cai@lca.pw> Reviewed-by: NAndrey Konovalov <andreyknvl@google.com> Cc: Andrey Ryabinin <aryabinin@virtuozzo.com> Cc: Alexander Potapenko <glider@google.com> Cc: Dmitry Vyukov <dvyukov@google.com> Signed-off-by: NAndrew Morton <akpm@linux-foundation.org> Signed-off-by: NLinus Torvalds <torvalds@linux-foundation.org>
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