ip6gre_tnl_change 1285 net/ipv6/ip6_gre.c 				ip6gre_tnl_change(t, &p1, 1);
ip6gre_tnl_change 2047 net/ipv6/ip6_gre.c 	ip6gre_tnl_change(t, &p, !tb[IFLA_MTU]);