Re: S/G operation, skb checksums, data copying

However, mac80211 needs to change the skb header before the skb is
handed to the hardware. Often enough, the skb it will get is cloned, so
it has to copy the header. Hence, it would benefit from having the
actual skb data not be in the header, but that is unavoidable currently
since we have no checksum features.

I just realised that this wouldn't happen since the extra data is
actually in a struct page *, so never mind.

johannes