Re: [Xen-devel] [PATCH] xen-netfront: pull on receive skb may need to happen earlier

[David Miller <davem@xxxxxxxxxxxxx>]

From: Wei Liu <wei.liu2@xxxxxxxxxx>
Date: Fri, 5 Jul 2013 15:53:19 +0100

> You seem to be altering the behavior of the original code, because in
> your patch the skb->len is incremented before use, while in the original
> code (which calls skb_headlen in handle_incoming_packet) the skb->len is
> correctly set.

Indeed, I think you're right.

Because __pskb_pull_tail() decrements the number of bytes pulled
from skb->data_len, it won't be accounted for in skb->len

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