linux-kernel - Re: [PATCH] dmaengine: pl330: fix residual for non-running BUSY descriptors

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Date:   Fri, 9 Sep 2016 17:19:35 +0530
From:   Vinod Koul <vinod.koul@...el.com>
To:     Stephen Barber <smbarber@...omium.org>
Cc:     Dan Williams <dan.j.williams@...el.com>, dmaengine@...r.kernel.org,
        linux-kernel@...r.kernel.org,
        Douglas Anderson <dianders@...omium.org>,
        Hsin-Yu Chao <hychao@...omium.org>
Subject: Re: [PATCH] dmaengine: pl330: fix residual for non-running BUSY
 descriptors

On Thu, Aug 18, 2016 at 05:59:59PM -0700, Stephen Barber wrote:
> Only one descriptor in the work list should be running at
> any given time, but it's possible to have an enqueued BUSY
> descriptor that has not yet transferred any data, or for
> a BUSY descriptor to linger briefly before transitioning
> to DONE. These cases should be handled to keep residual
> calculations consistent even with the non-running BUSY
> descriptors in the work list.

Applied, thanks

-- 
~Vinod