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

[Sam Ravnborg <sam@ravnborg.org>]

On Tue, Apr 29, 2008 at 12:13:22PM -0700, Andrew Morton wrote:
> On Tue, 29 Apr 2008 21:01:32 +0200
> Sam Ravnborg <sam@ravnborg.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?

I think so. But I just stumbled upon this mail and have not even tried
to follow what you discuss.

So yes - if it is a kconfig symbol.
And if it is a bool.
And if it has no dependencies, or we can create a helper
with no dependencies - so yes.

	Sam