1 files changed, 7 insertions, 3 deletions

diff --git a/include/linux/sock_diag.h b/include/linux/sock_diag.h
index 379d5dccf8e1..66bc18ef4fa4 100644
--- a/include/linux/sock_diag.h
+++ b/include/linux/sock_diag.h
@@ -1,16 +1,19 @@
 #ifndef __SOCK_DIAG_H__
 #define __SOCK_DIAG_H__
 
-#define SOCK_DIAG_BY_FAMILY 20
+#include <linux/types.h>
 
-struct sk_buff;
-struct nlmsghdr;
+#define SOCK_DIAG_BY_FAMILY 20
 
 struct sock_diag_req {
         __u8    sdiag_family;
         __u8    sdiag_protocol;
 };
 
+#ifdef __KERNEL__
+struct sk_buff;
+struct nlmsghdr;
+
 struct sock_diag_handler {
         __u8 family;
         int (*dump)(struct sk_buff *skb, struct nlmsghdr *nlh);
@@ -26,4 +29,5 @@ int sock_diag_check_cookie(void *sk, __u32 *cookie);
 void sock_diag_save_cookie(void *sk, __u32 *cookie);
 
 extern struct sock *sock_diag_nlsk;
+#endif /* KERNEL */
 #endif