From: Thomas Graf <[EMAIL PROTECTED]> Date: Tue, 26 Jul 2005 01:38:08 +0200
> Therefore I'd say stick to the device pointers for now to be on the > safe side, in case we're missing a 4 bytes saving for cacheline > reasons we can think about this again and defuse the worst case a > bit by increasing NETDEV_HASHBITS. Ok... while looking more deeply at the input_dev refcount issue, I learned something. We never grab a reference to skb->dev even on output :-) we hold an implicit reference, I am guessing, via skb->dst and that's why this works. But how can this possibly work for skb->dst'less packets (such as IPV4 ARP generated frames)? Hmmm... it is too obvious to be a true hole. Alexey? - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
