Hi Sam,
On Thu, Apr 17, 2014 at 04:36:38PM +0100, Sam Ravnborg wrote:
> On Thu, Apr 17, 2014 at 02:44:03PM +0100, Will Deacon wrote:
> > Hello,
> >
> > This RFC series attempts to define a portable (i.e. cross-architecture)
> > definition of the {readX,writeX}_relaxed MMIO accessor functions. These
> > functions are already in widespread use amongst drivers (mainly those supporting
> > devices embedded in ARM SoCs), but lack any well-defined semantics and,
> > subsequently, any portable definitions to allow these drivers to be compiled for
> > other architectures.
>
> Could this be made in such a way that only architectures that need
> to provide their own versions actually have to add them?
>
> The current patch-set adds the same dummy defines all over,
> and will put this burden also on new architectures.
It shouldn't be a burden for new architectures, as they will use
asm-generic/io.h and get the definitions from there.
Will
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