diff --git a/fs/f2fs/dir.c b/fs/f2fs/dir.c
index 2887bcef118b..f8e7bafd092a 100644
--- a/fs/f2fs/dir.c
+++ b/fs/f2fs/dir.c
@@ -60,7 +60,7 @@ static unsigned char f2fs_type_by_mode[S_IFMT >> S_SHIFT] = {
 	[S_IFLNK >> S_SHIFT]	= F2FS_FT_SYMLINK,
 };
 
-void set_de_type(struct f2fs_dir_entry *de, umode_t mode)
+static void set_de_type(struct f2fs_dir_entry *de, umode_t mode)
 {
 	de->file_type = f2fs_type_by_mode[(mode & S_IFMT) >> S_SHIFT];
 }
diff --git a/fs/f2fs/f2fs.h b/fs/f2fs/f2fs.h
index 7ce0272733e2..c80ee4b1fa51 100644
--- a/fs/f2fs/f2fs.h
+++ b/fs/f2fs/f2fs.h
@@ -2798,7 +2798,6 @@ struct dentry *f2fs_get_parent(struct dentry *child);
 /*
  * dir.c
  */
-void set_de_type(struct f2fs_dir_entry *de, umode_t mode);
 unsigned char get_de_type(struct f2fs_dir_entry *de);
 struct f2fs_dir_entry *find_target_dentry(struct fscrypt_name *fname,
 			f2fs_hash_t namehash, int *max_slots,