kmalloc_size() derives size of kmalloc cache from internal index,
which can't be negative.
Propagate unsignedness a bit.
Signed-off-by: Alexey Dobriyan <adobriyan@xxxxxxxxx>
---
include/linux/slab.h | 4 ++--
mm/slab_common.c | 4 ++--
2 files changed, 4 insertions(+), 4 deletions(-)
diff --git a/include/linux/slab.h b/include/linux/slab.h
index 296f33a512eb..ad157fbf3886 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -522,11 +522,11 @@ static __always_inline void *kmalloc(size_t size, gfp_t flags)
* return size or 0 if a kmalloc cache for that
* size does not exist
*/
-static __always_inline int kmalloc_size(int n)
+static __always_inline unsigned int kmalloc_size(unsigned int n)
{
#ifndef CONFIG_SLOB
if (n > 2)
- return 1 << n;
+ return 1U << n;
if (n == 1 && KMALLOC_MIN_SIZE <= 32)
return 96;
diff --git a/mm/slab_common.c b/mm/slab_common.c
index 7626a64b8f14..d3f4209c297d 100644
--- a/mm/slab_common.c
+++ b/mm/slab_common.c
@@ -1138,9 +1138,9 @@ void __init create_kmalloc_caches(slab_flags_t flags)
struct kmem_cache *s = kmalloc_caches[i];
if (s) {
- int size = kmalloc_size(i);
+ unsigned int size = kmalloc_size(i);
char *n = kasprintf(GFP_NOWAIT,
- "dma-kmalloc-%d", size);
+ "dma-kmalloc-%u", size);
BUG_ON(!n);
kmalloc_dma_caches[i] = create_kmalloc_cache(n,
--
2.16.1
--
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