From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sun, 28 Feb 2010 08:29:53 +0800

On Sat, Feb 27, 2010 at 08:17:09AM -0800, David Miller wrote:

quoted

From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Sat, 27 Feb 2010 23:52:45 +0800

quoted

I just did a grep on net/sched and couldn't see anything obvious
that uses transport_header.

I think skb_checksum_help() would be such a use and I
see a reference in net/sched/sch_netem.c

AFAICS skb_checksum_help uses csum_start and not transport_header.
Has this changed recently?

Once upon a time some drivers used transport_header instead of
csum_start, but even those seem to be gone mostly so one day we
could remove this setting completely.

Ok, then this clears up all of my concerns.  Thanks Herbert.