netdev - Re: [patch 3/6] qeth: avoid crash in case of layer mismatch for VSWITCH

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Message-Id: <20090104.173653.42738205.davem@davemloft.net>
Date:	Sun, 04 Jan 2009 17:36:53 -0800 (PST)
From:	David Miller <davem@...emloft.net>
To:	frank.blaschka@...ibm.com
Cc:	jgarzik@...ox.com, netdev@...r.kernel.org,
	linux-s390@...r.kernel.org, ursula.braun@...ibm.com
Subject: Re: [patch 3/6] qeth: avoid crash in case of layer mismatch for
 VSWITCH

From: frank.blaschka@...ibm.com
Date: Fri, 02 Jan 2009 16:01:42 +0100

> For z/VM GuestLAN or VSWITCH devices the transport layer is
> configured in z/VM. The layer2 attribute of a participating Linux
> device has to match the z/VM definition. In case of a mismatch
> Linux currently crashes in qeth recovery due to a reference to the
> not yet existing net_device.
> Solution: add a check for existence of net_device and add a message
> pointing to the mismatch of layer definitions in Linux and z/VM.
> 
> Signed-off-by: Ursula Braun <ursula.braun@...ibm.com>
> Signed-off-by: Frank Blaschka <frank.blaschka@...ibm.com>

Applied.
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