diff --git a/fs/btrfs/extent_io.h b/fs/btrfs/extent_io.h
index d34416c831bf..c5e80d60d71b 100644
--- a/fs/btrfs/extent_io.h
+++ b/fs/btrfs/extent_io.h
@@ -79,11 +79,6 @@
 #define BITMAP_LAST_BYTE_MASK(nbits) \
 	(BYTE_MASK >> (-(nbits) & (BITS_PER_BYTE - 1)))
 
-static inline int le_test_bit(int nr, const u8 *addr)
-{
-	return 1U & (addr[BIT_BYTE(nr)] >> (nr & (BITS_PER_BYTE-1)));
-}
-
 struct extent_state;
 struct btrfs_root;
 struct btrfs_inode;