From: jamal <redacted>
Date: Wed, 02 Jun 2010 09:36:37 -0400

On Wed, 2010-06-02 at 21:14 +0800, Changli Gao wrote:

quoted

Maybe skb_header_pointer() is lighter.

A little worse than skb_copy_bits(). In any case, this change is going
to hurt.

Umm, Jamal what are you talking about?

Using skb_header_pointer(), if the offset is in range, there is no
change from today other than a comparison.

If it is not in range, we use skb_copy_bits().  It's only for the
case where we have to fetch the value from the fragmented part
of the SKB.