netdev - Re: [patch] af_key: return error if pfkey_xfrm_policy2msg

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Date:	Wed, 24 Mar 2010 09:46:23 -0400
From:	jamal <hadi@...erus.ca>
To:	Dan Carpenter <error27@...il.com>
Cc:	netdev@...r.kernel.org, "David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <eric.dumazet@...il.com>,
	Stephen Hemminger <shemminger@...tta.com>,
	Alexey Dobriyan <adobriyan@...il.com>,
	kernel-janitors@...r.kernel.org
Subject: Re: [patch] af_key: return error if pfkey_xfrm_policy2msg_prep()
 fails

On Wed, 2010-03-24 at 14:47 +0300, Dan Carpenter wrote:
> The original code saved the error value but just returned 0 in the end.

Looks reasonable and harmless. 
If you have time - can you try this one test with your patch and see if
any strange message shows up when you delete? add a policy on window1,
on window2 run ip xfrm mon and then back on window1 delete it and watch
the event on window2

----
window2: ip xfrm mon

window1, add:
ip xfrm policy add src 172.16.2.0/24 dst 172.16.1.0/24 \
        dir fwd ptype main \
        tmpl src 192.168.2.100 dst 192.168.1.100 \
        proto esp mode tunnel


window1, delete:
ip xfrm pol del src 172.16.2.0/24 dst 172.16.1.0/24 dir fwd
----

cheers,
jamal

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