netdev - Re: [PATCH 03/12] IPv6: addrconf notify when address is unavailable

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Message-Id: <20100304.004006.75773924.davem@davemloft.net>
Date:	Thu, 04 Mar 2010 00:40:06 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	shemminger@...tta.com
Cc:	yoshfuji@...ux-ipv6.org, netdev@...r.kernel.org
Subject: Re: [PATCH 03/12] IPv6: addrconf notify when address is unavailable

From: Stephen Hemminger <shemminger@...tta.com>
Date: Tue, 02 Mar 2010 15:32:46 -0800

> My recent change in net-next to retain permanent addresses caused regression.
> Device refcount would not go to zero when device was unregistered because
> left over anycast reference would hold ipv6 dev reference which would hold
> device references...
> 
> The correct procedure is to call notify chain when address is no longer
> available for use.  When interface comes back DAD timer will notify
> back that address is available.
> 
> 
> Also, link local addresses should be purged when interface is brought
> down. The address might be changed.
> 
> Signed-off-by: Stephen Hemminger <shemminger@...tta.com>

Applied.
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