From mboxrd@z Thu Jan  1 00:00:00 1970
From: Patrick McHardy <kaber@trash.net>
Subject: Re: [PATCH] netdev: don't always reset iflink when registering
Date: Mon, 22 Mar 2010 18:42:43 +0100
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References: <20100320013917.GB13239@boeing.com>
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Cc: netdev@vger.kernel.org
To: Tom Goff <thomas.goff@boeing.com>
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Tom Goff wrote:
> Bound tunnel devices set their iflink to the ifindex of the underlying
> network interface when created.  It shouldn't be reset by the
> registration process.
>   

Which ones exactly? Usually they do this in ->setup() or later on.