diff options
| author | Arnd Bergmann <[email protected]> | 2019-07-16 16:25:57 -0700 |
|---|---|---|
| committer | Linus Torvalds <[email protected]> | 2019-07-16 19:23:21 -0700 |
| commit | a07057dce2823e10d64a2b73cefbf09d8645efe9 (patch) | |
| tree | 3db80e494d3428436e62e52fa70c449ec9368a8f | |
| parent | 7b7c1df2883dd4393592859758c3e76207da8b1d (diff) | |
mm/slab_common.c: work around clang bug #42570
Clang gets rather confused about two variables in the same special
section when one of them is not initialized, leading to an assembler
warning later:
/tmp/slab_common-18f869.s: Assembler messages:
/tmp/slab_common-18f869.s:7526: Warning: ignoring changed section attributes for .data..ro_after_init
Adding an initialization to kmalloc_caches is rather silly here
but does avoid the issue.
Link: https://bugs.llvm.org/show_bug.cgi?id=42570
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Arnd Bergmann <[email protected]>
Acked-by: David Rientjes <[email protected]>
Reviewed-by: Andrew Morton <[email protected]>
Cc: Christoph Lameter <[email protected]>
Cc: Pekka Enberg <[email protected]>
Cc: Joonsoo Kim <[email protected]>
Cc: Stephen Rothwell <[email protected]>
Cc: Roman Gushchin <[email protected]>
Cc: Shakeel Butt <[email protected]>
Cc: Vladimir Davydov <[email protected]>
Cc: Andrey Konovalov <[email protected]>
Signed-off-by: Andrew Morton <[email protected]>
Signed-off-by: Linus Torvalds <[email protected]>
| -rw-r--r-- | mm/slab_common.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/mm/slab_common.c b/mm/slab_common.c index 6c49dbb3769e..807490fe217a 100644 --- a/mm/slab_common.c +++ b/mm/slab_common.c @@ -1028,7 +1028,8 @@ struct kmem_cache *__init create_kmalloc_cache(const char *name, } struct kmem_cache * -kmalloc_caches[NR_KMALLOC_TYPES][KMALLOC_SHIFT_HIGH + 1] __ro_after_init; +kmalloc_caches[NR_KMALLOC_TYPES][KMALLOC_SHIFT_HIGH + 1] __ro_after_init = +{ /* initialization for https://bugs.llvm.org/show_bug.cgi?id=42570 */ }; EXPORT_SYMBOL(kmalloc_caches); /* |