netdev - Re: [PATCHv2] netfilter: Remove skb_is_nonlinear check from nf_conntrack

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Date:	Fri, 14 May 2010 21:33:38 +0200 (CEST)
From:	Jan Engelhardt <jengelh@...ozas.de>
To:	Patrick McHardy <kaber@...sh.net>
cc:	Jason Gunthorpe <jgunthorpe@...idianresearch.com>,
	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: Re: [PATCHv2] netfilter: Remove skb_is_nonlinear check from
 nf_conntrack_sip


On Friday 2010-05-14 21:26, Patrick McHardy wrote:
>>> Should this be NF_DROP? As I understand it skb_linearize only failes
>>> if it runs out of memory, which probably means dropping is OK. But
>>> passing a packet that might need rewriting could be harmful..
>> 
>> We so far also didn't rewrite the packet. But agreed, its
>> a corner case and dropping it is the safer choice.
>
>This is what I've added to my tree. Tested with asterisk and TSO
>enabled NIC, which fails without this patch.
>

[..patch..]

Shouldn't we do this for the other nf_conntrack_xyz too?
That would mean getting rid of the size-limited locked packet
buffer.
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