net: diag: add missing declarations

The functions inet_diag_msg_common_fill and inet_diag_msg_attrs_fill
seem to have been missed from the include/linux/inet_diag.h header
file. Add them to fix the following warnings:

net/ipv4/inet_diag.c:69:6: warning: symbol 'inet_diag_msg_common_fill' was not declared. Should it be static?
net/ipv4/inet_diag.c:108:5: warning: symbol 'inet_diag_msg_attrs_fill' was not declared. Should it be static?

Signed-off-by: Ben Dooks <ben.dooks@codethink.co.uk>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/inet_diag.h b/include/linux/inet_diag.h
index 7c27fa1..feb04ea 100644
--- a/include/linux/inet_diag.h
+++ b/include/linux/inet_diag.h
@@ -52,6 +52,12 @@
 
 int inet_diag_bc_sk(const struct nlattr *_bc, struct sock *sk);
 
+void inet_diag_msg_common_fill(struct inet_diag_msg *r, struct sock *sk);
+
+int inet_diag_msg_attrs_fill(struct sock *sk, struct sk_buff *skb,
+			     struct inet_diag_msg *r, int ext,
+			     struct user_namespace *user_ns);
+
 extern int  inet_diag_register(const struct inet_diag_handler *handler);
 extern void inet_diag_unregister(const struct inet_diag_handler *handler);
 #endif /* _INET_DIAG_H_ */