Reduce the number of skb->data direct accesses

Hi David,

Reworked the patches to not use skb_copy_bits, but some new accessors,
namely skb_copy_from_linear_data{_offset}().

Please consider pulling from the usual place:

master.kernel.org:/pub/scm/linux/kernel/git/acme/net-2.6.22

Best Regards,

- Arnaldo