linux-kernel - Re: [Bug #12805] QinQ vlan trunking regression

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Message-Id: <200903142326.11185.rjw@sisk.pl>
Date:	Sat, 14 Mar 2009 23:26:10 +0100
From:	"Rafael J. Wysocki" <rjw@...k.pl>
To:	David Miller <davem@...emloft.net>
Cc:	linux-kernel@...r.kernel.org, kernel-testers@...r.kernel.org,
	bart@...ie.net, netdev@...r.kernel.org
Subject: Re: [Bug #12805] QinQ vlan trunking regression

On Saturday 14 March 2009, David Miller wrote:
> From: "Rafael J. Wysocki" <rjw@...k.pl>
> Date: Sat, 14 Mar 2009 20:05:33 +0100 (CET)
> 
> > This message has been generated automatically as a part of a report
> > of recent regressions.
> > 
> > The following bug entry is on the current list of known regressions
> > from 2.6.28.  Please verify if it still should be listed and let me know
> > (either way).
> > 
> > 
> > Bug-Entry	: http://bugzilla.kernel.org/show_bug.cgi?id=12805
> > Subject		: QinQ vlan trunking regression
> > Submitter	: Bart Trojanowski <bart@...ie.net>
> > Date		: 2009-02-28 18:05 (15 days old)
> > References	: http://marc.info/?l=linux-kernel&m=123584439115868&w=4
> 
> Fixed by:
> 
> commit 9d40bbda599def1e1d155d7f7dca14fe8744bd2b
> Author: David S. Miller <davem@...emloft.net>
> Date:   Wed Mar 4 23:46:25 2009 -0800
> 
>     vlan: Fix vlan-in-vlan crashes.
>     
>     As analyzed by Patrick McHardy, vlan needs to reset it's
>     netdev_ops pointer in it's ->init() function but this
>     leaves the compat method pointers stale.
>     
>     Add a netdev_resync_ops() and call it from the vlan code.
>     
>     Any other driver which changes ->netdev_ops after register_netdevice()
>     will need to call this new function after doing so too.
>     
>     With help from Patrick McHardy.
>     
>     Tested-by: Patrick McHardy <kaber@...sh.net>
>     Signed-off-by: David S. Miller <davem@...emloft.net>

Thanks, closed.

Rafael
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