From mboxrd@z Thu Jan  1 00:00:00 1970
From: Stephen Hemminger <shemminger@vyatta.com>
Subject: Re: ipv6: why disable ipv6 on last address removal?
Date: Sun, 23 Jan 2011 20:47:45 +1100
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Cc: David Miller <davem@davemloft.net>, yoshfuji@linux-ipv6.org,
	netdev@vger.kernel.org
To: Jiri Bohac <jbohac@suse.cz>
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What about this? It will remove the address on ipv6 disable.

--- a/net/ipv6/addrconf.c	2011-01-23 20:30:25.897243002 +1100
+++ b/net/ipv6/addrconf.c	2011-01-23 20:30:41.161243002 +1100
@@ -4197,7 +4197,7 @@ static void dev_disable_change(struct in
 		return;
 
 	if (idev->cnf.disable_ipv6)
-		addrconf_notify(NULL, NETDEV_DOWN, idev->dev);
+		addrconf_notify(NULL, NETDEV_UNREGISTER, idev->dev);
 	else
 		addrconf_notify(NULL, NETDEV_UP, idev->dev);
 }