[REPOST PATCH v6 3/3] arm64: topology: Handle AMU FIE setup on CPU hotplug

[Geert Uytterhoeven]

On Thu, 15 Jan 2026 at 09:37, Geert Uytterhoeven <geert at linux-m68k.org> wrote:
> On Thu, 15 Jan 2026 at 03:25, zhenglifeng (A) <zhenglifeng1 at huawei.com> wrote:
> > On 2026/1/14 21:54, Geert Uytterhoeven wrote:
> > > The confusing part is in the (absence of) logging.
> > > If AMU is not supported, freq_counters_valid() uses:
> > >
> > >      pr_debug("CPU%d: counters are not supported.\n", cpu);
> > >
> > > which is typically not printed, unless DEBUG is enabled.
> > >
> > > If freq_counters_valid() failed, the new cpuhp_topology_online() uses:
> > >
> > >     pr_warn("CPU[%u] doesn't support AMU counters\n", cpu);
> > >
> > > which is always printed.
> > >
> > > Given freq_counters_valid() already prints a (debug) message, I think
> > > the pr_warn() should just be removed.  Do you agree, or is there still
> > > another incorrect check that should prevent getting this far?
> >
> > I'm OK with removing it.
>
> OK, I will send a patch.

https://lore.kernel.org/a8dbf49bfa44a6809fa4f34b918516847dc14460.1768466986.git.geert+renesas@glider.be/

Gr{oetje,eeting}s,

                        Geert

-- 
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert at linux-m68k.org

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
                                -- Linus Torvalds