linux-kernel - Re: [PATCH v4] usbnet/cdc_ncm: Don't use stack variables for DMA

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Message-Id: <20110813.180123.46722618651238324.davem@davemloft.net>
Date:	Sat, 13 Aug 2011 18:01:23 -0700 (PDT)
From:	David Miller <davem@...emloft.net>
To:	jwboyer@...hat.com
Cc:	oliver@...kum.org, alexey.orishko@...ricsson.com, gregkh@...e.de,
	linux-usb@...r.kernel.org, linux-kernel@...r.kernel.org,
	netdev@...r.kernel.org
Subject: Re: [PATCH v4] usbnet/cdc_ncm: Don't use stack variables for DMA

From: Josh Boyer <jwboyer@...hat.com>
Date: Mon, 8 Aug 2011 08:34:07 -0400

> The cdc_ncm driver still has a few places where stack variables are
> passed to the cdc_ncm_do_request function.  This triggers a stack trace in
> lib/dma-debug.c if the CONFIG_DEBUG_DMA_API option is set.
> 
> Adjust these calls to pass parameters that have been allocated with
> kzalloc.
> 
> Signed-off-by: Josh Boyer <jwboyer@...hat.com>

Applied.
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