547 	u8 tproto;  in ip6_tnl_err()  local
561 	tproto = ACCESS_ONCE(t->parms.proto);  in ip6_tnl_err()
562 	if (tproto != ipproto && tproto != 0)  in ip6_tnl_err()
864 	u8 tproto;  in ip6_tnl_rcv()  local
872 		tproto = ACCESS_ONCE(t->parms.proto);  in ip6_tnl_rcv()
873 		if (tproto != ipproto && tproto != 0) {  in ip6_tnl_rcv()
1180 	u8 tproto;  in ip4ip6_tnl_xmit()  local
1185 	tproto = ACCESS_ONCE(t->parms.proto);  in ip4ip6_tnl_xmit()
1186 	if (tproto != IPPROTO_IPIP && tproto != 0)  in ip4ip6_tnl_xmit()
1225 	u8 tproto;  in ip6ip6_tnl_xmit()  local
1228 	tproto = ACCESS_ONCE(t->parms.proto);  in ip6ip6_tnl_xmit()
1229 	if ((tproto != IPPROTO_IPV6 && tproto != 0) ||  in ip6ip6_tnl_xmit()