486 	tproto = READ_ONCE(t->parms.proto);  in ip6_tnl_err()
822 	skb->protocol = tpi->proto;  in __ip6_tnl_rcv()
900 	if (tpi->proto == htons(ETH_P_IP))  in ip6_tnl_rcv()
910 	.proto = htons(ETH_P_IPV6),
915 	.proto = htons(ETH_P_IP),
920 	.proto = htons(ETH_P_MPLS_UC),
938 		u8 tproto = READ_ONCE(t->parms.proto);  in ipxip6_rcv()
947 		if (iptunnel_pull_header(skb, 0, tpi->proto, false))  in ipxip6_rcv()
1085 		 __u8 proto)  in ip6_tnl_xmit()  argument
1143 	} else if (t->parms.proto != 0 && !(t->parms.flags &  in ip6_tnl_xmit()
1261 	err = ip6_tnl_encap(skb, t, &proto, fl6);  in ip6_tnl_xmit()
1267 		ipv6_push_frag_opts(skb, &opt.ops, &proto);  in ip6_tnl_xmit()
1276 	ipv6h->nexthdr = proto;  in ip6_tnl_xmit()
1305 	tproto = READ_ONCE(t->parms.proto);  in ipxip6_tnl_xmit()
1545 	t->parms.proto = p->proto;  in ip6_tnl_change()
1566 	t->parms.proto = p->proto;  in ip6_tnl0_update()
1580 	p->proto = u->proto;  in ip6_tnl_parm_from_user()
1594 	u->proto = p->proto;  in ip6_tnl_parm_to_user()
1667 		if (p.proto != IPPROTO_IPV6 && p.proto != IPPROTO_IPIP &&  in ip6_tnl_siocdevprivate()
1668 		    p.proto != 0)  in ip6_tnl_siocdevprivate()
1739 	if (tnl->parms.proto == IPPROTO_IPV6) {  in ip6_tnl_change_mtu()
1746 	if (tnl->parms.proto == IPPROTO_IPV6 || tnl->parms.proto == 0) {  in ip6_tnl_change_mtu()
1946 	t->parms.proto = IPPROTO_IPV6;  in ip6_fb_tnl_dev_init()
1955 	u8 proto;  in ip6_tnl_validate()  local
1960 	proto = nla_get_u8(data[IFLA_IPTUN_PROTO]);  in ip6_tnl_validate()
1961 	if (proto != IPPROTO_IPV6 &&  in ip6_tnl_validate()
1962 	    proto != IPPROTO_IPIP &&  in ip6_tnl_validate()
1963 	    proto != 0)  in ip6_tnl_validate()
1999 		parms->proto = nla_get_u8(data[IFLA_IPTUN_PROTO]);  in ip6_tnl_netlink_parms()
2133 	    nla_put_u8(skb, IFLA_IPTUN_PROTO, parm->proto) ||  in ip6_tnl_fill_info()