[RAW]: Consolidate proto->hash callback

Having the raw_hashinfo it's easy to consolidate the
raw[46]_hash functions.

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/net/raw.h b/include/net/raw.h
index 70b27c7..43f1e3c 100644
--- a/include/net/raw.h
+++ b/include/net/raw.h
@@ -39,4 +39,6 @@
 extern void raw_proc_exit(void);
 #endif
 
+void raw_hash_sk(struct sock *sk, struct raw_hashinfo *h);
+
 #endif	/* _RAW_H */