diff --git a/drivers/dma-buf/heaps/page_pool.c b/drivers/dma-buf/heaps/page_pool.c
index 81d154cb0ae6..7c34a1ba48bb 100644
--- a/drivers/dma-buf/heaps/page_pool.c
+++ b/drivers/dma-buf/heaps/page_pool.c
@@ -239,7 +239,7 @@ struct shrinker pool_shrinker = {
 	.batch = 0,
 };
 
-int dmabuf_page_pool_init_shrinker(void)
+static int dmabuf_page_pool_init_shrinker(void)
 {
 	return register_shrinker(&pool_shrinker);
 }