Re: [PATCH 00/18] Cross-architecture definitions of relaxed MMIO accessors

From: Sam Ravnborg
Date: Thu Apr 17 2014 - 11:36:58 EST


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.

Sam
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/