what is the state about "[v2] ppc64 boot: Wait for boot cpu to show up if nr_cpus limit is about to hit"

[Michael Ellerman]

Liu ping fan <kernelfans at gmail.com> writes:

> Hi,
>
> I can not find the history about:
> https://patchwork.ozlabs.org/patch/577193/
>
>
> Can we have this patch?

I strongly dislike it.

Our CPU discovery code is already a big mess, in two separate places,
and this makes it worse.

In theory we have a split between logical and hardware CPU numbers, so
we should just be able to call the whatever CPU we boot on CPU 0. Why
does that not work? And should we fix that?

cheers