linux-kernel - Re: [PATCH 22/25] xen: xen-netfront: use skb.cb for storing private data

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Date:	Sun, 29 Apr 2007 00:43:33 -0700
From:	Jeremy Fitzhardinge <jeremy@...p.org>
To:	Herbert Xu <herbert@...dor.apana.org.au>
CC:	Andi Kleen <ak@...e.de>, Andrew Morton <akpm@...ux-foundation.org>,
	virtualization@...ts.osdl.org, lkml <linux-kernel@...r.kernel.org>,
	Chris Wright <chrisw@...s-sol.org>,
	Christian Limpach <Christian.Limpach@...cam.ac.uk>
Subject: Re: [PATCH 22/25] xen: xen-netfront: use skb.cb for storing private
 data

Herbert Xu wrote:
> BTW, the version I posted to you is missing the following line.
>   
> --- linux-2.6.20.i386/drivers/xen/core/skbuff.c	2007-04-28 15:30:16.000000000 +1000
> +++ build-2.6.20.i386/drivers/xen/core/skbuff.c	2007-04-28 15:30:52.000000000 +1000
> @@ -89,6 +89,7 @@
>  	skb->h.raw = (unsigned char *)skb->nh.iph + 4*skb->nh.iph->ihl;
>  	if (skb->h.raw >= skb->tail)
>  		goto out;
> +	skb->csum_start = skb->h.raw - skb->head;
>  	switch (skb->nh.iph->protocol) {
>  	case IPPROTO_TCP:
>  		skb->csum_offset = offsetof(struct tcphdr, check);
>   

drivers/xen/core/skbuff.c?  What's that?

    J
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