xt_proto_init     431 include/linux/netfilter/x_tables.h extern int xt_proto_init(struct net *net, u_int8_t af);
xt_proto_init    1832 net/ipv4/netfilter/arp_tables.c 	return xt_proto_init(net, NFPROTO_ARP);
xt_proto_init    2218 net/ipv4/netfilter/ip_tables.c 	return xt_proto_init(net, AF_INET);
xt_proto_init    2243 net/ipv6/netfilter/ip6_tables.c 	return xt_proto_init(net, AF_INET6);