Protasevich, Natalie wrote:
> > > +#ifdef CONFIG_HOTPLUG_CPU
> > > + if (cpu_online(cpu)) {
> > > +#else
> > > if (cpu_online(cpu) || !cpu_present(cpu)) {
> > > +#endif
> > > ret = -EINVAL;
> > > goto out;
> > > }
> >
> > Why this change? I think the cpu_present check is needed for
> > ppc64 since it has non-present cpus in sysfs.
> >
>
> The new processor was never brought up, its bit is only set in
> cpu_possible_map, but not in present map.
If a cpu is physically present and is capable of being onlined it
should be marked in cpu_present_map, please. This change would break
ppc64; can you rework it?
