Re: [PATCH 7/9] lib/cpumask: add num_{possible,present,active}_cpus_{eq,gt,le}

[Emil Renner Berthing]

On Sun, 28 Nov 2021 at 18:43, Yury Norov <yury.norov@xxxxxxxxx> wrote:
> On Sun, Nov 28, 2021 at 09:07:52AM -0800, Joe Perches wrote:
> > On Sat, 2021-11-27 at 19:57 -0800, Yury Norov wrote:
> > > Add num_{possible,present,active}_cpus_{eq,gt,le} and replace num_*_cpus()
> > > with one of new functions where appropriate. This allows num_*_cpus_*()
> > > to return earlier depending on the condition.
> > []
> > > diff --git a/arch/arc/kernel/smp.c b/arch/arc/kernel/smp.c
> > []
> > > @@ -103,7 +103,7 @@ void __init smp_prepare_cpus(unsigned int max_cpus)
> > >      * if platform didn't set the present map already, do it now
> > >      * boot cpu is set to present already by init/main.c
> > >      */
> > > -   if (num_present_cpus() <= 1)
> > > +   if (num_present_cpus_le(2))
> > >             init_cpu_present(cpu_possible_mask);
> >
> > ?  is this supposed to be 2 or 1
>
> X <= 1 is the equivalent of X < 2.

Ah, then the function is confusing. Usually it's lt = less than and lt
= less than or equal. Same idea for gt vs ge.