Re: [PATCH 3/4] x86/cpufeature: Remove unused and seldomly used cpu_has_xx macros

From: Ingo Molnar
Date: Mon Dec 07 2015 - 08:36:53 EST



* Borislav Petkov <bp@xxxxxxxxx> wrote:

> On Mon, Dec 07, 2015 at 10:45:04AM +0100, Ingo Molnar wrote:
> >
> > * Borislav Petkov <bp@xxxxxxxxx> wrote:
> >
> > > static int __init chacha20_simd_mod_init(void)
> > > {
> > > - if (!cpu_has_ssse3)
> > > + if (!boot_cpu_has(X86_FEATURE_SSSE3))
> > > return -ENODEV;
> >
> > Btw., could we rename 'boot_cpu_has()' to the more appropriate (and shorter!)
> > 'system_has()' form?
> >
> > 'boot cpu' is a conceptual misnomer here really: it's just an implementational
> > detail that we are looking at the boot CPU's flags, what we really mean to express
> > is that these are system-wide features with no per-cpu properties.
> >
> > Agreed?
>
> Yeah, sounds good to me.
>
> Mind if I do it for the next part of the cleanup, though, and not rework
> those patches which are already tested?

Sure!

Thanks,

Ingo
--
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/