--- zzzz-none-000/linux-3.10.107/include/net/inet6_connection_sock.h	2017-06-27 09:49:32.000000000 +0000
+++ scorpion-7490-727/linux-3.10.107/include/net/inet6_connection_sock.h	2021-02-04 17:41:59.000000000 +0000
@@ -22,27 +22,15 @@
 struct sock;
 struct sockaddr;
 
-extern int inet6_csk_bind_conflict(const struct sock *sk,
-				   const struct inet_bind_bucket *tb, bool relax);
+int inet6_csk_bind_conflict(const struct sock *sk,
+			    const struct inet_bind_bucket *tb, bool relax);
 
-extern struct dst_entry* inet6_csk_route_req(struct sock *sk,
-					     struct flowi6 *fl6,
-					     const struct request_sock *req);
+struct dst_entry *inet6_csk_route_req(const struct sock *sk, struct flowi6 *fl6,
+				      const struct request_sock *req, u8 proto);
 
-extern struct request_sock *inet6_csk_search_req(const struct sock *sk,
-						 struct request_sock ***prevp,
-						 const __be16 rport,
-						 const struct in6_addr *raddr,
-						 const struct in6_addr *laddr,
-						 const int iif);
+void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
 
-extern void inet6_csk_reqsk_queue_hash_add(struct sock *sk,
-					   struct request_sock *req,
-					   const unsigned long timeout);
+int inet6_csk_xmit(struct sock *sk, struct sk_buff *skb, struct flowi *fl);
 
-extern void inet6_csk_addr2sockaddr(struct sock *sk, struct sockaddr *uaddr);
-
-extern int inet6_csk_xmit(struct sk_buff *skb, struct flowi *fl);
-
-extern struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu);
+struct dst_entry *inet6_csk_update_pmtu(struct sock *sk, u32 mtu);
 #endif /* _INET6_CONNECTION_SOCK_H */