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mm/slub.c: fix -Wunused-function compiler warnings

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tid_to_cpu() and tid_to_event() are only used in note_cmpxchg_failure()
when SLUB_DEBUG_CMPXCHG=y, so when SLUB_DEBUG_CMPXCHG=n by default, Clang
will complain that those unused functions.

Link: http://lkml.kernel.org/r/1568752232-5094-1-git-send-email-cai@lca.pw
Signed-off-by: Qian Cai <cai@lca.pw>
Acked-by: David Rientjes <rientjes@google.com>
Cc: Christoph Lameter <cl@linux.com>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
This commit is contained in:
Qian Cai 2019-09-23 15:33:52 -07:00 committed by Linus Torvalds
parent 9adeaa2269
commit 9d5f0be0f7
1 changed files with 2 additions and 0 deletions
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2
mm/slub.c
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@ -2004,6 +2004,7 @@ static inline unsigned long next_tid(unsigned long tid)
return tid + TID_STEP;
}
#ifdef SLUB_DEBUG_CMPXCHG
static inline unsigned int tid_to_cpu(unsigned long tid)
{
return tid % TID_STEP;
@ -2013,6 +2014,7 @@ static inline unsigned long tid_to_event(unsigned long tid)
{
return tid / TID_STEP;
}
#endif
static inline unsigned int init_tid(int cpu)
{