linux-kernel - Re: [PATCH 1/3] make access_process

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Message-Id: <20080429121322.6da6b176.akpm@linux-foundation.org>
Date:	Tue, 29 Apr 2008 12:13:22 -0700
From:	Andrew Morton <akpm@...ux-foundation.org>
To:	Sam Ravnborg <sam@...nborg.org>
Cc:	riel@...hat.com, linux-kernel@...r.kernel.org, ajackson@...hat.com,
	airlied@...hat.com, benh@...nel.crashing.org
Subject: Re: [PATCH 1/3] make access_process_vm work on device memory

On Tue, 29 Apr 2008 21:01:32 +0200
Sam Ravnborg <sam@...nborg.org> wrote:

> > urgh.
> > 
> > We have HAVE_ARCH*
> > We have __HAVE_ARCH*
> > We have ARCH_HAS*
> > We have __ARCH_HAS*
> > 
> > what a mess.
> > 
> > Probably the preferred (but still ugly) approach is to implement
> > CONFIG_ARCH_*.
> Only if it is a Kconfig symbol.
> 
> We have recently started to use 'HAVE_*' for boolean symbols used
> to select a specific function for one architecture.
> See arch/Kconfig for a few samples.
> 
> And Documentation/kbuild/kconfig-language.txt for usage hints.
> 

I think what you're telling us is to use CONFIG_HAVE_IOREMAP_PROT?
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