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Date:	Mon, 26 Mar 2007 21:45:06 -0700
From:	Stephen Hemminger <>
To:	Herbert Xu <>
CC:	"David S. Miller" <>,
Subject: Re: [NET]: Allow partial checksums to be forwarded

Herbert Xu wrote:
> Hi Dave:
> Looks like I forgot to finish the checksum stuff for Xen last time around.
> [NET]: Allow partial checksums to be forwarded
> Right now Xen has a horrible hack that lets it forward packets with
> partial checksums.  One of the reasons that CHECKSUM_PARTIAL was added
> is so that we can get rid of this hack (where it creates an extra bit
> in the skbuff to essentially mirror ip_summed without being destroyed
> by the forwarding code).
> So here is the patch that lets us get rid of the hack by preserving
> CHECKSUM_PARTIAL on forwarded packets.
> Signed-off-by: Herbert Xu <>
> Cheers,

Looks okay.
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