749 static int sit_tunnel_rcv(struct sk_buff *skb, u8 ipproto)  in sit_tunnel_rcv()  argument
763 		if (tunnel->parms.iph.protocol != ipproto &&  in sit_tunnel_rcv()
770 		if (ipproto == IPPROTO_MPLS)  in sit_tunnel_rcv()
1047 				     struct net_device *dev, u8 ipproto)  in sit_tunnel_xmit__()  argument
1055 	skb_set_inner_ipproto(skb, ipproto);  in sit_tunnel_xmit__()
1057 	ip_tunnel_xmit(skb, dev, tiph, ipproto);  in sit_tunnel_xmit__()
1243 static bool ipip6_valid_ip_proto(u8 ipproto)  in ipip6_valid_ip_proto()  argument
1245 	return ipproto == IPPROTO_IPV6 ||  in ipip6_valid_ip_proto()
1246 		ipproto == IPPROTO_IPIP ||  in ipip6_valid_ip_proto()
1248 		ipproto == IPPROTO_MPLS ||  in ipip6_valid_ip_proto()
1250 		ipproto == 0;  in ipip6_valid_ip_proto()