[RFC PATCH] dma-buf: system_heap: sys_uncached_heap can be static

[kernel test robot]

Signed-off-by: kernel test robot <lkp@xxxxxxxxx>
---
 system_heap.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/dma-buf/heaps/system_heap.c b/drivers/dma-buf/heaps/system_heap.c
index 952f1fd9dacfda..fa17959d81795d 100644
--- a/drivers/dma-buf/heaps/system_heap.c
+++ b/drivers/dma-buf/heaps/system_heap.c
@@ -22,7 +22,7 @@
 #include <linux/vmalloc.h>
 
 struct dma_heap *sys_heap;
-struct dma_heap *sys_uncached_heap;
+static struct dma_heap *sys_uncached_heap;
 
 struct system_heap_buffer {
 	struct dma_heap *heap;