linux-kernel - Re: [PATCH 3/8 resend] dw_dmac: call dwc_scan_descriptor from dwc_issue

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Message-ID: <20110228104635.GB2754@pulham.picochip.com>
Date:	Mon, 28 Feb 2011 10:46:35 +0000
From:	Jamie Iles <jamie@...ieiles.com>
To:	Viresh Kumar <viresh.kumar@...com>
Cc:	dan.j.williams@...el.com, linus.walleij@...ricsson.com,
	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	shiraz.hashim@...com, amit.goel@...com, armando.visconti@...com
Subject: Re: [PATCH 3/8 resend] dw_dmac: call dwc_scan_descriptor from
 dwc_issue_pending only if active list is empty

On Mon, Feb 28, 2011 at 04:11:18PM +0530, Viresh Kumar wrote:
> dwc_scan_descriptor was called even when there were descriptors in active list.
> Checking if active list is empty or not.
> 
> Signed-off-by: Viresh Kumar <viresh.kumar@...com>

Hi Viresh,

I have a similar patch to this that is already in next that should 
achieve the same thing (dmaengine/dw_dmac: don't scan descriptors if no 
xfers in progress).

Jamie
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