750 static int sit_tunnel_rcv(struct sk_buff *skb, u8 ipproto)  in sit_tunnel_rcv()  argument
764 		if (tunnel->parms.iph.protocol != ipproto &&  in sit_tunnel_rcv()
771 		if (ipproto == IPPROTO_MPLS)  in sit_tunnel_rcv()
1046 				     struct net_device *dev, u8 ipproto)  in sit_tunnel_xmit__()  argument
1054 	skb_set_inner_ipproto(skb, ipproto);  in sit_tunnel_xmit__()
1056 	ip_tunnel_xmit(skb, dev, tiph, ipproto);  in sit_tunnel_xmit__()
1239 static bool ipip6_valid_ip_proto(u8 ipproto)  in ipip6_valid_ip_proto()  argument
1241 	return ipproto == IPPROTO_IPV6 ||  in ipip6_valid_ip_proto()
1242 		ipproto == IPPROTO_IPIP ||  in ipip6_valid_ip_proto()
1244 		ipproto == IPPROTO_MPLS ||  in ipip6_valid_ip_proto()
1246 		ipproto == 0;  in ipip6_valid_ip_proto()