Re: [PATCH] mac80211: partially fix skb->cb use

[Luis Carlos Cobo <luisca@cozybit.com>]

On Tue, 2008-07-29 at 11:32 +0200, Johannes Berg wrote:
> This patch fixes mac80211 to not use the skb->cb over the queue step
> from virtual interfaces to the master. The patch also, for now,
> disables aggregation because that would still require requeuing,
> will fix that in a separate patch. There are two other places (software
> requeue and powersaving stations) where requeue can happen, but that is
> not currently used by any drivers/not possible to use respectively.

On net/mac80211/rx.c:ieee80211_data_to_8023() cb is used for mesh frames
to save the original mesh header. Then if the frame has to be forwarded,
the frame is queued on the virtual interface and
net/mac80211/tx.c:ieee80211_subif_start_xmit() expects the mesh header
to remain in the cb if the frame is not originally from the local host.
It's a different step from the one you mention, but as I understand it
it may suffer the same problem right?

-- 
Luis Carlos Cobo Rus       GnuPG ID: 44019B60
cozybit Inc.