linux-kernel - Re: [PATCH 6/6] dma/imx-sdma: check whether event_id0 < 32 when set event

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Message-ID: <20120110153836.GA27831@S2101-09.ap.freescale.net>
Date:	Tue, 10 Jan 2012 23:38:39 +0800
From:	Shawn Guo <shawn.guo@...aro.org>
To:	Richard Zhao <richard.zhao@...aro.org>
Cc:	linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	dan.j.williams@...el.com, vinod.koul@...el.com,
	kernel@...gutronix.de, eric.miao@...aro.org, patches@...aro.org
Subject: Re: [PATCH 6/6] dma/imx-sdma: check whether event_id0 < 32 when set
 event_mask

On Tue, Jan 10, 2012 at 10:29:42PM +0800, Richard Zhao wrote:
> On Tue, Jan 10, 2012 at 10:20:10PM +0800, Shawn Guo wrote:
> > On Tue, Jan 10, 2012 at 03:01:50PM +0800, Richard Zhao wrote:
> > > Signed-off-by: Richard Zhao <richard.zhao@...aro.org>
> > > ---
> > 
> > I think it deserves a sensible commit message explaining why the patch
> > is needed.
> If event_id0 < 32, 1 << (sdmac->event_id0 - 32) is not zero.
> 
My point is you may explain the exact problem you are seeing without
this patch and how the patch helps here.  In general, doing so would
win a warm feeling from reviewers much more easily than leaving the
commit message empty there.

-- 
Regards,
Shawn
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