Re: [PATCH v1 1/4] x86/cpu: Introduce INTEL_CPU_FAM*_NODATA() helper macros

[Andy Shevchenko]

On Fri, Aug 31, 2018 at 08:41:28AM -0700, Andi Kleen wrote:
> Andy Shevchenko <andriy.shevchenko@xxxxxxxxxxxxxxx> writes:
> > +
> > +#define INTEL_CPU_FAM_ANY_NODATA(_family, _model)		\
> > +	INTEL_CPU_FAM_ANY(_family, _model, NULL)
> > +
> > +#define INTEL_CPU_FAM6_NODATA(_model)				\
> > +	INTEL_CPU_FAM_ANY_NODATA(6, INTEL_FAM6_##_model)

> _NODATA is actually longer than passing NULL ?

One character longer (you have to compare to ", NULL").

> Seems unnecessary

Let's gather other's opinions.

P.S. In any case some refactoring is needed to allow NULL in parameters (move &
out from base macro).

-- 
With Best Regards,
Andy Shevchenko