ip6t_unregister_table_pre_exit
void ip6t_unregister_table_pre_exit(struct net *net, const char *name);
EXPORT_SYMBOL(ip6t_unregister_table_pre_exit);
ip6t_unregister_table_pre_exit(net, "filter");
ip6t_unregister_table_pre_exit(net, "mangle");
ip6t_unregister_table_pre_exit(net, "raw");
ip6t_unregister_table_pre_exit(net, "security");