ip4ip6_handler 2178 net/ipv6/ip6_tunnel.c static struct xfrm6_tunnel ip4ip6_handler __read_mostly = { ip4ip6_handler 2293 net/ipv6/ip6_tunnel.c err = xfrm6_tunnel_register(&ip4ip6_handler, AF_INET); ip4ip6_handler 2313 net/ipv6/ip6_tunnel.c xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET); ip4ip6_handler 2327 net/ipv6/ip6_tunnel.c if (xfrm6_tunnel_deregister(&ip4ip6_handler, AF_INET))