l2tp_ip6_protocol 787 net/l2tp/l2tp_ip6.c static struct inet6_protocol l2tp_ip6_protocol __read_mostly = { l2tp_ip6_protocol 801 net/l2tp/l2tp_ip6.c err = inet6_add_protocol(&l2tp_ip6_protocol, IPPROTO_L2TP); l2tp_ip6_protocol 817 net/l2tp/l2tp_ip6.c inet6_del_protocol(&l2tp_ip6_protocol, IPPROTO_L2TP);