35 int gre_add_protocol(const struct gre_protocol *proto, u8 version)  in gre_add_protocol()  argument
40 	return (cmpxchg((const struct gre_protocol **)&gre_proto[version], NULL, proto) == NULL) ?  in gre_add_protocol()
45 int gre_del_protocol(const struct gre_protocol *proto, u8 version)  in gre_del_protocol()  argument
52 	ret = (cmpxchg((const struct gre_protocol **)&gre_proto[version], proto, NULL) == proto) ?  in gre_del_protocol()
65 	const struct gre_protocol *proto;  in gre_rcv()  local
77 	proto = rcu_dereference(gre_proto[ver]);  in gre_rcv()
78 	if (!proto || !proto->handler)  in gre_rcv()
80 	ret = proto->handler(skb);  in gre_rcv()
93 	const struct gre_protocol *proto;  in gre_err()  local
101 	proto = rcu_dereference(gre_proto[ver]);  in gre_err()
102 	if (proto && proto->err_handler)  in gre_err()
103 		proto->err_handler(skb, info);  in gre_err()