linux-kernel - Re: [PATCHv7] dmaengine: Add support for BCM2835

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Date:	Mon, 18 Nov 2013 14:54:00 +0000
From:	Russell King - ARM Linux <linux@....linux.org.uk>
To:	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
Cc:	Florian Meier <florian.meier@...lo.de>,
	Stephen Warren <swarren@...dotorg.org>,
	"Koul, Vinod" <vinod.koul@...el.com>,
	"Williams, Dan J" <dan.j.williams@...el.com>,
	devicetree <devicetree@...r.kernel.org>,
	"alsa-devel@...a-project.org" <alsa-devel@...a-project.org>,
	Liam Girdwood <lgirdwood@...il.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Mark Brown <broonie@...nel.org>,
	linux-rpi-kernel <linux-rpi-kernel@...ts.infradead.org>,
	dmaengine <dmaengine@...r.kernel.org>,
	"linux-arm-kernel@...ts.infradead.org" 
	<linux-arm-kernel@...ts.infradead.org>
Subject: Re: [PATCHv7] dmaengine: Add support for BCM2835

On Mon, Nov 18, 2013 at 04:30:17PM +0200, Andy Shevchenko wrote:
> On Mon, 2013-11-18 at 13:16 +0100, Florian Meier wrote:
> > >> +	uint32_t chans_available;
> > > 
> > > Why uint32_t?
> > 
> > Because it is a bit mask of fixed length that directly comes from the
> > firmware.
> 
> Like one already told you in your i2s patch, please, change that to
> corresponding u* value, namely u32.

There's no problem with uint32_t vs u32 - either will do.  u32 is the
pre-stdint.h Linux definition of a 32-bit unsigned integer.  There's
no reason why uint32_t isn't perfectly acceptable.  It's a matter of
author taste which gets used.  (Except where modifications are to an
existing chunk of code using one or the other - where consistency then
matters more.)
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