diff --git a/fs/btrfs/volumes.c b/fs/btrfs/volumes.c
index 3df83539f532..64ec2fd624da 100644
--- a/fs/btrfs/volumes.c
+++ b/fs/btrfs/volumes.c
@@ -5262,7 +5262,6 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
 	    need_raid_map && ((rw & (REQ_WRITE | REQ_GET_READ_MIRRORS)) ||
 	    mirror_num > 1)) {
 		u64 tmp;
-		int i;
 		unsigned rot;
 
 		bbio->raid_map = (u64 *)((void *)bbio->stripes +
@@ -5438,9 +5437,7 @@ static int __btrfs_map_block(struct btrfs_fs_info *fs_info, int rw,
 			}
 		}
 		if (found) {
-			u64 length = map->stripe_len;
-
-			if (physical_of_found + length <=
+			if (physical_of_found + map->stripe_len <=
 			    dev_replace->cursor_left) {
 				struct btrfs_bio_stripe *tgtdev_stripe =
 					bbio->stripes + num_stripes;