Re: [PATCH 1/3] make access_process_vm work on device memory

[Andrew Morton]

On Tue, 29 Apr 2008 21:01:32 +0200
Sam Ravnborg <sam@xxxxxxxxxxxx> 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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