[PATCH v2 02/22] asm-generic/io.h: add ioremap_nopost remap interface

Bjorn Helgaas helgaas at kernel.org
Thu Mar 30 09:47:32 PDT 2017

On Tue, Mar 28, 2017 at 03:45:43PM +0100, Lorenzo Pieralisi wrote:
> On Mon, Mar 27, 2017 at 08:41:10PM -0500, Bjorn Helgaas wrote:
> > On Mon, Mar 27, 2017 at 10:49:30AM +0100, Lorenzo Pieralisi wrote:

> > >  #define ioremap_uc ioremap_uc
> > > +#define ioremap_nopost ioremap_nocache
> > 
> > These are all the same as the default from asm-generic.h.  Do we really
> > need these definitions in alpha, avr32, frv, ia64, x86?
> Those arches do not include asm-generic.h (I suppose for a good reason)

OK, that explains it.  I'm not at all sure there's a good reason for
those arches not using asm-generic.h, but I haven't looked at the code
to see.

> but a definition is needed anyway if we want code using ioremap_nopost()
> to be unconditional. This is one way of doing it, there are others not
> sure they are any better, I am open to suggestions.

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