netdev - Re: [patch] USB: kaweth.c: use GFP_ATOMIC under spin

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Message-Id: <20120727.134632.76746326614521026.davem@davemloft.net>
Date:	Fri, 27 Jul 2012 13:46:32 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	dan.carpenter@...cle.com
Cc:	gregkh@...uxfoundation.org, linux-usb@...r.kernel.org,
	netdev@...r.kernel.org, kernel-janitors@...r.kernel.org
Subject: Re: [patch] USB: kaweth.c: use GFP_ATOMIC under spin_lock

From: Dan Carpenter <dan.carpenter@...cle.com>
Date: Fri, 27 Jul 2012 14:46:51 +0300

> The problem is that we call this with a spin lock held.  The call tree
> is:
> 	kaweth_start_xmit() holds kaweth->device_lock.
> 	-> kaweth_async_set_rx_mode()
> 	   -> kaweth_control()
> 	      -> kaweth_internal_control_msg()
> 
> The kaweth_internal_control_msg() function is only called from
> kaweth_control() which used GFP_ATOMIC for its allocations.
> 
> Signed-off-by: Dan Carpenter <dan.carpenter@...cle.com>

Applied.
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