The function is only used when certain configuration option are enabled.
Adding the attribute fixes the following warning when building with
clang:
mm/slub.c:1258:20: error: unused function 'slab_free_hook'
[-Werror,-Wunused-function]
Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
mm/slub.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/mm/slub.c b/mm/slub.c
index 66e1046435b7..23a8eb83efff 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1328,7 +1328,7 @@ static inline void kfree_hook(const void *x)
kasan_kfree_large(x);
}
-static inline void *slab_free_hook(struct kmem_cache *s, void *x)
+static inline void *__maybe_unused slab_free_hook(struct kmem_cache *s, void *x)
{
void *freeptr;
--
2.13.0.303.g4ebf302169-goog
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