netdev - Re: [PATCH v3 1/3] net/usb/r815x: replace USB buffer from stack to DMA-able

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Message-ID: <CACVXFVOtVegwr6pzjwRsth1npw_iN6mB_YHaQ4Q7na4xVrY83g@mail.gmail.com>
Date:	Tue, 30 Jul 2013 22:29:29 +0800
From:	Ming Lei <tom.leiming@...il.com>
To:	Hayes Wang <hayeswang@...ltek.com>
Cc:	gregkh@...uxfoundation.org, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org, linux-usb@...r.kernel.org,
	nic_swsd@...ltek.com
Subject: Re: [PATCH v3 1/3] net/usb/r815x: replace USB buffer from stack to DMA-able

On Tue, Jul 30, 2013 at 4:28 PM, Hayes Wang <hayeswang@...ltek.com> wrote:
> Allocate the transfer buffer in probe(), and use the buffer for
> usb control transfer.

Looks this is a usbnet device, so suggest to use usbnet command APIs
(usbnet_read_cmd/usbnet_write_cmd) to do that, another advantage is
you can avoid to access runtime-suspended device from ethtool.


Thanks,
-- 
Ming Lei
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