From mboxrd@z Thu Jan  1 00:00:00 1970
From: David Miller <davem@davemloft.net>
Subject: Re: mirred, redirect action vs. dev refcount issue
Date: Wed, 21 Jul 2010 16:39:55 -0700 (PDT)
Message-ID: <20100721.163955.12041610.davem@davemloft.net>
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From: Stephen Hemminger <shemminger@vyatta.com>
Date: Wed, 21 Jul 2010 16:24:26 -0700

> Alternatively, the mirror/redirect could just use ifindex which is
> a soft reference, so if device is removed, they just drop.
> 
> Lazy me favors the later.

If it is the action rule holding onto the device, it should have
an appropriate netdevice notifier handler.

If it's a transient reference on receive, it should be transient
and released eventually.