netdev - Re: [net-next-2.6 PATCH v2] net: consolidate netif_needs

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Date:	Sun, 28 Feb 2010 08:29:53 +0800
From:	Herbert Xu <herbert@...dor.apana.org.au>
To:	David Miller <davem@...emloft.net>
Cc:	jeffrey.t.kirsher@...el.com, netdev@...r.kernel.org,
	gospo@...hat.com, john.r.fastabend@...el.com
Subject: Re: [net-next-2.6 PATCH v2] net: consolidate netif_needs_gso()
	checks

On Sat, Feb 27, 2010 at 08:17:09AM -0800, David Miller wrote:
> From: Herbert Xu <herbert@...dor.apana.org.au>
> Date: Sat, 27 Feb 2010 23:52:45 +0800
> 
> > 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.

Cheers,
-- 
Visit Openswan at http://www.openswan.org/
Email: Herbert Xu ~{PmV>HI~} <herbert@...dor.apana.org.au>
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