Subject: Re: linux-next: Tree for March 27 (netfilter build error)

From: Cyrill Gorcunov <[email-masked]>
Date: Sun, 29 Mar 2009 10:47:04 +0400

[Randy Dunlap - Sat, Mar 28, 2009 at 09:26:42PM -0700]
... 
| works_for_me.  Thanks.
| but missing S-O-B.
| 
| Acked-by: Randy Dunlap <[email-masked]>
...

Thanks for testing Randy. So if nobody will complain
here is a solid version of the patch. Though I would like
if Pablo or Patrick confirm its correctness. Thanks!

       Cyrill
---
From: Cyrill Gorcunov <[email-masked]>
Subject: netfilter: xtables - build issue fix

Randy Dunlap reported:
| with CONFIG_IPV6=n:
|
| ERROR: "__ipv6_addr_type" [net/netfilter/xt_cluster.ko] undefined!

ipv6_addr_type does depend on IPv6 being tuned on.
Guard it with CONFIG_IPV6/_MODULE.

Reported-by: Randy Dunlap <[email-masked]>
Signed-off-by: Cyrill Gorcunov <[email-masked]>
Acked-by: Randy Dunlap <[email-masked]>
---
 net/netfilter/xt_cluster.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux-2.6.git/net/netfilter/xt_cluster.c
===================================================================
--- linux-2.6.git.orig/net/netfilter/xt_cluster.c
+++ linux-2.6.git/net/netfilter/xt_cluster.c
@@ -67,8 +67,10 @@ xt_cluster_is_multicast_addr(const struc
 		is_multicast = ipv4_is_multicast(ip_hdr(skb)->daddr);
 		break;
 	case NFPROTO_IPV6:
+#if defined(CONFIG_IPV6) || defined(CONFIG_IPV6_MODULE)
 		is_multicast = ipv6_addr_type(&ipv6_hdr(skb)->daddr) &
 						IPV6_ADDR_MULTICAST;
+#endif
 		break;
 	default:
 		WARN_ON(1);