[PATCH] d_path: Eliminate compilation warnings

[Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>]

Eliminate the following clang compilation warnings by including
necessary header files:

  fs/d_path.c:318:7: warning: no previous prototype for function 'simple_dname' [-Wmissing-prototypes]
  char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
        ^
  fs/d_path.c:318:1: note: declare 'static' if the function is not intended to be used outside of this translation unit
  char *simple_dname(struct dentry *dentry, char *buffer, int buflen)
  ^
  static

Signed-off-by: Tianjia Zhang <tianjia.zhang@xxxxxxxxxxxxxxxxx>
---
 fs/d_path.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/fs/d_path.c b/fs/d_path.c
index e4e0ebad1f15..264f2b2aedd0 100644
--- a/fs/d_path.c
+++ b/fs/d_path.c
@@ -8,6 +8,8 @@
 #include <linux/prefetch.h>
 #include "mount.h"
 
+#include "internal.h"
+
 struct prepend_buffer {
 	char *buf;
 	int len;
-- 
2.32.0