linux-kernel - Re: [PATCH 1/2] dma: Add interface to calculate data transferred

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Message-ID: <20131013152633.GM2954@intel.com>
Date:	Sun, 13 Oct 2013 20:56:33 +0530
From:	Vinod Koul <vinod.koul@...el.com>
To:	Greg KH <gregkh@...uxfoundation.org>
Cc:	Youquan Song <youquan.song@...el.com>, dan.j.williams@...el.com,
	andriy.shevchenko@...el.com, mika.westerberg@...el.com,
	linux-kernel@...r.kernel.org,
	Youquan Song <youquan.song@...ux.jf.intel.com>
Subject: Re: [PATCH 1/2] dma: Add interface to calculate data transferred

On Fri, Oct 11, 2013 at 06:33:43AM -0700, Greg KH wrote:
> On Fri, Oct 11, 2013 at 05:42:17PM -0400, Youquan Song wrote:
> > Currently, the DMA channel calculates its data transferred only at network
> > device driver. When other devices like UART or SPI etc, transfers data by DMA 
> > mode, but it always shows 0 at /sys/class/dma/dma0chan*/bytes_transferred.
> 
> Is that really a problem?  I have never heard anyone complaining about
> it.  Where are the reports of this?
Right, am not still getting the point on what is the problem that this series is
trying to fix..

~Vinod
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