From: Daniel Phillips <[email protected]>
Date: Tue, 08 Aug 2006 18:34:43 -0700
> Can you please characterize the conditions under which skb->dev changes
> after the alloc? Are there writings on this subtlety?
The packet scheduler and classifier can redirect packets to different
devices, and can the netfilter layer.
The setting of skb->dev is wholly transient and you cannot rely upon
it to be the same as when you set it on allocation.
Even simple things like the bonding device change skb->dev on every
receive.
I think you need to study the networking stack a little more before
you continue to play in this delicate area :-)
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