diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index aefa26fbae8a..efdc9b5bc05c 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -728,7 +728,7 @@ static inline unsigned int blksize_bits(unsigned int size)
 	return bits;
 }
 
-extern inline unsigned int block_size(struct block_device *bdev)
+static inline unsigned int block_size(struct block_device *bdev)
 {
 	return bdev->bd_block_size;
 }