linux-kernel - Re: [PATCH 0/5] mfd: replace IORESOURCE_IO by IORESOURCE

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Message-ID: <20120807113230.GE24257@flint.arm.linux.org.uk>
Date:	Tue, 7 Aug 2012 12:32:30 +0100
From:	Russell King <rmk@....linux.org.uk>
To:	Arnd Bergmann <arnd@...db.de>
Cc:	Benjamin Herrenschmidt <benh@...nel.crashing.org>,
	Mark Brown <broonie@...nsource.wolfsonmicro.com>,
	Haojian Zhuang <haojian.zhuang@...il.com>,
	sameo@...ux.intel.com, rpurdie@...ys.net, bryan.wu@...onical.com,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 0/5] mfd: replace IORESOURCE_IO by IORESOURCE_MEM

On Tue, Aug 07, 2012 at 11:28:27AM +0000, Arnd Bergmann wrote:
> If we introduce a new IORESOURCE_OTHER, I would actually prefer to
> define it to 0x00000000 for purely aesthetic reasons, the effect
> should be the same as using 0x00000300.

I'd suggest not, because we can use that to detect uninitialized
resources (and we probably do so in some places.)  IOW, I think that's
asking for problems when this moves outside platform code.

-- 
Russell King
 Linux kernel    2.6 ARM Linux   - http://www.arm.linux.org.uk/
 maintainer of:
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