netdev - Re: gso: Attempt to handle mega-GRO packets

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Message-ID: <1383750392.4291.167.camel@edumazet-glaptop2.roam.corp.google.com>
Date:	Wed, 06 Nov 2013 07:06:32 -0800
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Herbert Xu <herbert@...dor.apana.org.au>
Cc:	Ben Hutchings <bhutchings@...arflare.com>,
	David Miller <davem@...emloft.net>,
	christoph.paasch@...ouvain.be, netdev@...r.kernel.org,
	hkchu@...gle.com, mwdalton@...gle.com
Subject: Re: gso: Attempt to handle mega-GRO packets

On Wed, 2013-11-06 at 22:39 +0800, Herbert Xu wrote:
> On Wed, Nov 06, 2013 at 09:30:45PM +0800, Herbert Xu wrote:
> > 
> > In order to handle malicious GSO packets that is now possible with
> > the use of frag_list in virtio_net, we need to remove the BUG_ONs.
> 
> OK Eric was right and I am a dumb ass.  This has no chance in hell
> of handling the new virtio_net frag_list since we won't have any
> headers in the frag_list skbs.
> 
> In fact, we never relied on the frag_list having headers anyway so
> it's not hard to fix this.
> 
> Still totally untested but at least this has a chance of handling
> the new virtio_net.

OK I'll take a look at this and make tests today, thanks !


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