On Thu, 2008-05-01 at 11:32 +0200, Michael Buesch wrote:
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> On Thursday 01 May 2008 11:08:06 Johannes Berg wrote:
> >=20
> > > Hm, unrelated to this...
> > > But I am wondering what happens if the driver adds a device header to=
 the skb.
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> > > Is that header then also passed up netif_rx()?
> > > This doesn't happen for b43, as we use the DMA fragmentation to trans=
mit the header,
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> > > but it might happen for zd1211rw and others.
> >=20
> > Hmm. I thought we said that it was supposed to be removed again by the
> > hardware before TX status reporting. That's what most drivers seem to d=
o
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> > anyway.
>=20
> Ok. I was not aware of that. Is that documented somewhere? I guess we can=
't WARN_ON()?

Not sure. We could try to analyse the packet header and see if it's
802.11, or put a length into skb->cb (after my rework to put things into
skb->cb we have a single byte free so we could check skb->len % 256)

johannes