488 	u8 tproto;  in ip6_tnl_err()  local
502 	tproto = ACCESS_ONCE(t->parms.proto);  in ip6_tnl_err()
503 	if (tproto != ipproto && tproto != 0)  in ip6_tnl_err()
805 	u8 tproto;  in ip6_tnl_rcv()  local
813 		tproto = ACCESS_ONCE(t->parms.proto);  in ip6_tnl_rcv()
814 		if (tproto != ipproto && tproto != 0) {  in ip6_tnl_rcv()
1124 	u8 tproto;  in ip4ip6_tnl_xmit()  local
1127 	tproto = ACCESS_ONCE(t->parms.proto);  in ip4ip6_tnl_xmit()
1128 	if (tproto != IPPROTO_IPIP && tproto != 0)  in ip4ip6_tnl_xmit()
1167 	u8 tproto;  in ip6ip6_tnl_xmit()  local
1170 	tproto = ACCESS_ONCE(t->parms.proto);  in ip6ip6_tnl_xmit()
1171 	if ((tproto != IPPROTO_IPV6 && tproto != 0) ||  in ip6ip6_tnl_xmit()