From: Johannes Berg <johannes@xxxxxxxxxxxxxxxx> Date: Mon, 05 May 2008 21:57:36 +0200 > Not necessarily because we seem to be getting a lot of cloned frames > that we need to copy all the time. If we would remove the ethernet > header and stick that skb into the fraglist of a new skb we'd win. And the copy is necessary because you need more tailroom or something? I don't understand why simply having all the space you need is not better and faster :-) Even if you have a clone, you can muck with the data in the IP and TCP header areas, so long as skb_header_cloned() is false. So I can only conclude that your problematic case is that of encryption, right? That's the only situation where I can imagine you need to modify with packet data outside of the protocol headers. -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
