diff --git a/fs/btrfs/file-item.c b/fs/btrfs/file-item.c
index b14d2da9b26d..14478da87531 100644
--- a/fs/btrfs/file-item.c
+++ b/fs/btrfs/file-item.c
@@ -602,7 +602,7 @@ int btrfs_lookup_csums_range(struct btrfs_root *root, u64 start, u64 end,
 			}
 
 			sums->bytenr = start;
-			sums->len = (int)size;
+			sums->len = size;
 
 			offset = (start - key.offset) >> fs_info->sectorsize_bits;
 			offset *= csum_size;
diff --git a/fs/btrfs/ordered-data.h b/fs/btrfs/ordered-data.h
index f59f2dbdb25e..cc3ca4bb9bd5 100644
--- a/fs/btrfs/ordered-data.h
+++ b/fs/btrfs/ordered-data.h
@@ -20,7 +20,7 @@ struct btrfs_ordered_sum {
 	/*
 	 * this is the length in bytes covered by the sums array below.
 	 */
-	int len;
+	u32 len;
 	struct list_head list;
 	/* last field is a variable length array of csums */
 	u8 sums[];