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

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Message-ID: <20110812150715.GD3014@zod.bos.redhat.com>
Date:	Fri, 12 Aug 2011 11:07:16 -0400
From:	Josh Boyer <jwboyer@...hat.com>
To:	Oliver Neukum <oliver@...kum.org>,
	Alexey ORISHKO <alexey.orishko@...ricsson.com>
Cc:	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

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?

josh
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