ipv6: do not allow ipv6 module to be removed

}

module_init(inet6_init);

static void __exit inet6_exit(void)

{

	if (disable_ipv6_mod)

		return;

	/* First of all disallow new sockets creation. */

	sock_unregister(PF_INET6);

	/* Disallow any further netlink messages */

	rtnl_unregister_all(PF_INET6);

	udpv6_exit();

	udplitev6_exit();

	tcpv6_exit();

	/* Cleanup code parts. */

	ipv6_packet_cleanup();

	ipv6_frag_exit();

	ipv6_exthdrs_exit();

	addrconf_cleanup();

	ip6_flowlabel_cleanup();

	ndisc_late_cleanup();

	ip6_route_cleanup();

#ifdef CONFIG_PROC_FS

	/* Cleanup code parts. */

	if6_proc_exit();

	ipv6_misc_proc_exit();

	udplite6_proc_exit();

	raw6_proc_exit();

#endif

	ipv6_netfilter_fini();

	ipv6_stub = NULL;

	igmp6_cleanup();

	ndisc_cleanup();

	ip6_mr_cleanup();

	icmpv6_cleanup();

	rawv6_exit();

	unregister_pernet_subsys(&inet6_net_ops);

	proto_unregister(&rawv6_prot);

	proto_unregister(&udplitev6_prot);

	proto_unregister(&udpv6_prot);

	proto_unregister(&tcpv6_prot);

	rcu_barrier(); /* Wait for completion of call_rcu()'s */

}

module_exit(inet6_exit);

MODULE_ALIAS_NETPROTO(PF_INET6);