Re: [PATCH] IPoIB: Stop lying about hard_header_len and use skb->cb to stash LL addresses

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From: Roland Dreier <roland@xxxxxxxxxx>
Date: Tue,  7 Feb 2012 16:51:21 -0800

> From: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> Commit a0417fa3a18a ("net: Make qdisc_skb_cb upper size bound
> explicit.") made it possible for a netdev driver to use skb->cb
> between its header_ops.create method and its .ndo_start_xmit
> method.  Use this in ipoib_hard_header() to stash away the LL address
> (GID + QPN), instead of the "ipoib_pseudoheader" hack.  This allows
> IPoIB to stop lying about its hard_header_len, which will let us fix
> the L2 check for GRO.
> Signed-off-by: Roland Dreier <roland@xxxxxxxxxxxxxxx>
> ---
> OK, this works for me.  Definitely looks cleaner and also looks
> obvious enough that it's probably even correct.

I'll toss this, and Eric's updated patch into net-next, thanks!
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