[PATCH 1/3] mm/slub: Only define kmalloc_large_node_hook() for NUMA systems

[Matthias Kaehlcke]

The function is only used when CONFIG_NUMA=y. Placing it in an #ifdef
block fixes the following warning when building with clang:

mm/slub.c:1246:20: error: unused function 'kmalloc_large_node_hook'
    [-Werror,-Wunused-function]

Signed-off-by: Matthias Kaehlcke <mka@xxxxxxxxxxxx>
---
 mm/slub.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/mm/slub.c b/mm/slub.c
index 57e5156f02be..66e1046435b7 100644
--- a/mm/slub.c
+++ b/mm/slub.c
@@ -1313,11 +1313,14 @@ static inline void dec_slabs_node(struct kmem_cache *s, int node,
  * Hooks for other subsystems that check memory allocations. In a typical
  * production configuration these hooks all should produce no code at all.
  */
+
+#ifdef CONFIG_NUMA
 static inline void kmalloc_large_node_hook(void *ptr, size_t size, gfp_t flags)
 {
 	kmemleak_alloc(ptr, size, 1, flags);
 	kasan_kmalloc_large(ptr, size, flags);
 }
+#endif
 
 static inline void kfree_hook(const void *x)
 {
-- 
2.13.0.303.g4ebf302169-goog