From: Peter Zijlstra <[EMAIL PROTECTED]> Date: Wed, 09 Aug 2006 16:07:20 +0200
> Hmm, what does sk_buff::input_dev do? That seems to store the initial > device? You can run grep on the tree just as easily as I can which is what I did to answer this question. It only takes a few seconds of your time to grep the source tree for things like "skb->input_dev", so would you please do that before asking more questions like this? It does store the initial device, but as Thomas tried so hard to explain to you guys these device pointers in the skb are transient and you cannot refer to them outside of packet receive processing. The reason is that there is no refcounting performed on these devices when they are attached to the skb, for performance reasons, and thus the device can be downed, the module for it removed, etc. long before the skb is freed up. - 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
