The patch titled
Subject: mm/slub.c: fix -Wunused-function compiler warnings
has been added to the -mm tree. Its filename is
mm-slub-fix-wunused-function-compiler-warnings.patch
This patch should soon appear at
http://ozlabs.org/~akpm/mmots/broken-out/mm-slub-fix-wunused-function-compiler-warnings.patch
and later at
http://ozlabs.org/~akpm/mmotm/broken-out/mm-slub-fix-wunused-function-compiler-warnings.patch
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------------------------------------------------------
From: Qian Cai <cai@xxxxxx>
Subject: mm/slub.c: fix -Wunused-function compiler warnings
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@xxxxxx
Signed-off-by: Qian Cai <cai@xxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Cc: Christoph Lameter <cl@xxxxxxxxx>
Cc: Pekka Enberg <penberg@xxxxxxxxxx>
Cc: Joonsoo Kim <iamjoonsoo.kim@xxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
mm/slub.c | 2 ++
1 file changed, 2 insertions(+)
--- a/mm/slub.c~mm-slub-fix-wunused-function-compiler-warnings
+++ a/mm/slub.c
@@ -2004,6 +2004,7 @@ static inline unsigned long next_tid(uns
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
{
return tid / TID_STEP;
}
+#endif
static inline unsigned int init_tid(int cpu)
{
_
Patches currently in -mm which might be from cai@xxxxxx are
mm-slub-fix-wunused-function-compiler-warnings.patch
mm-kmemleak-record-the-current-memory-pool-size.patch
mm-kmemleak-increase-the-max-mem-pool-to-1m.patch
mm-silence-woverride-init-initializer-overrides.patch
writeback-fix-wstringop-truncation-warnings.patch
