linux-kernel - Re: [PATCH v4 1/6] arch: unify ioremap prototypes and macro aliases

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Message-ID: <20150617111412.GA9079@lst.de>
Date:	Wed, 17 Jun 2015 13:14:12 +0200
From:	Christoph Hellwig <hch@....de>
To:	Dan Williams <dan.j.williams@...el.com>
Cc:	arnd@...db.de, mingo@...hat.com, bp@...en8.de, hpa@...or.com,
	tglx@...utronix.de, ross.zwisler@...ux.intel.com,
	akpm@...ux-foundation.org, jgross@...e.com, x86@...nel.org,
	toshi.kani@...com, konrad.wilk@...cle.com,
	benh@...nel.crashing.org, mcgrof@...e.com,
	linux-nvdimm@...ts.01.org, linux-kernel@...r.kernel.org,
	stefan.bader@...onical.com, luto@...capital.net,
	linux-mm@...ck.org, geert@...ux-m68k.org, ralf@...ux-mips.org,
	hmh@....eng.br, mpe@...erman.id.au, tj@...nel.org,
	paulus@...ba.org, kbuild test robot <fengguang.wu@...el.com>,
	hch@....de
Subject: Re: [PATCH v4 1/6] arch: unify ioremap prototypes and macro aliases

On Thu, Jun 11, 2015 at 05:19:18PM -0400, Dan Williams wrote:
> Some archs define the first parameter to ioremap() as unsigned long,
> while the balance define it as resource_size_t.  Unify on
> resource_size_t to enable passing ioremap function pointers.  Also, some
> archs use function-like macros for defining ioremap aliases, but
> asm-generic/iomap.h expects object-like macros, unify on the latter.

Not urgent:  but maybe this is a big hint that we should not define
the prototypes on a per-architecture basis but in a common header
file.

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