netdev - Re: [PATCH 2/2] ipv4: Change rt->rt

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Message-Id: <20120723.152220.822947775372843073.davem@davemloft.net>
Date:	Mon, 23 Jul 2012 15:22:20 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	netdev@...r.kernel.org
Cc:	ja@....bg
Subject: Re: [PATCH 2/2] ipv4: Change rt->rt_iif encoding.

From: David Miller <davem@...emloft.net>
Date: Mon, 23 Jul 2012 14:07:37 -0700 (PDT)

> On input packet processing, rt->rt_iif will be zero if we should
> use skb->dev->ifindex.
> 
> Since we access rt->rt_iif consistently via inet_iif(), that is
> the only spot whose interpretation have to adjust.
> 
> Signed-off-by: David S. Miller <davem@...emloft.net>

Julian, as you seem to have feared, this turns out to not work.

We zap the skb->dev apparently, so I'll need to come up with
a different scheme to handle this.
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