--- linux/fs/ext4/ext4.h	2020-05-08 21:29:06.854506000 +0100
+++ linux/fs/ext4/ext4.h.new	2020-05-08 21:32:46.651631273 +0100
@@ -2050,7 +2050,7 @@ struct ext4_dir_entry_2 {
 	__le32	inode;			/* Inode number */
 	__le16	rec_len;		/* Directory entry length */
 	__u8	name_len;		/* Name length */
-	__u8	file_type;
+	__u8	file_type;		/* See file type macros EXT4_FT_* below */
 	char	name[EXT4_NAME_LEN];	/* File name */
 };