netdev - Re: [PATCH] cxgb4vf: fix crash due to manipulating queues before registration

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Message-Id: <20101028.132122.245402585.davem@davemloft.net>
Date:	Thu, 28 Oct 2010 13:21:22 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	leedom@...lsio.com
Cc:	netdev@...r.kernel.org
Subject: Re: [PATCH] cxgb4vf: fix crash due to manipulating queues before
 registration

From: Casey Leedom <leedom@...lsio.com>
Date: Thu, 28 Oct 2010 13:16:47 -0700

> Before commit "net: allocate tx queues in register_netdevice"
> netif_tx_stop_all_queues and related functions could be used between
> device allocation and registration but now only after registration.
> cxgb4 has such a call before registration and crashes now.  Move it
> after register_netdev.
> 
> Signed-off-by: Casey Leedom <leedom@...lsio.com>

Why are you manipulating the queue at all here?

The queue state is "don't care" at this point in time,
and has no meaning until ->open() is invoked.
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