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

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Date:	Fri, 12 Aug 2011 08:11:45 -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: Fri, 12 Aug 2011 11:07:16 -0400

> On Mon, Aug 08, 2011 at 08:34:06AM -0400, Josh Boyer wrote:
>> 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>
>> ---
>> v4: Rebase against 3.1-rc1
>> v3: Fix checkpatch errors
>> v2: Fix leak in error path
>> 
>>  drivers/net/usb/cdc_ncm.c |   47 ++++++++++++++++++++++++++++++++++++--------
>>  1 files changed, 38 insertions(+), 9 deletions(-)
> 
> Just curious, but which tree would this be pulled into?  usb or net or?

Probably net.
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