[IPSEC]: changing API of xfrm6_tunnel_register

This patch changes xfrm6_tunnel register and deregister
interface to prepare for solving the conflict of device
tunnels with inter address family IPsec tunnel.
There is no device which conflicts with IPv4 over IPv6
IPsec tunnel.

Signed-off-by: Kazunori MIYAZAWA <miyazawa@linux-ipv6.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

net/ipv6/ip6_tunnel.c

@@ -1128,7 +1128,7 @@ static int __init ip6_tunnel_init(void)
 {
 	int  err;
 
-	if (xfrm6_tunnel_register(&ip6ip6_handler)) {
+	if (xfrm6_tunnel_register(&ip6ip6_handler, AF_INET6)) {
 		printk(KERN_ERR "ip6ip6 init: can't register tunnel\n");
 		return -EAGAIN;
 	}
@@ -1147,7 +1147,7 @@ static int __init ip6_tunnel_init(void)
 	}
 	return 0;
 fail:
-	xfrm6_tunnel_deregister(&ip6ip6_handler);
+	xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6);
 	return err;
 }
 
@@ -1171,7 +1171,7 @@ static void __exit ip6ip6_destroy_tunnels(void)
 
 static void __exit ip6_tunnel_cleanup(void)
 {
-	if (xfrm6_tunnel_deregister(&ip6ip6_handler))
+	if (xfrm6_tunnel_deregister(&ip6ip6_handler, AF_INET6))
 		printk(KERN_INFO "ip6ip6 close: can't deregister tunnel\n");
 
 	rtnl_lock();