Re: [PATCH v4 7/8] x86/HPET: drop .set_affinity hook

["Roger Pau Monné" <roger.pau@citrix.com>]

On Mon, Nov 17, 2025 at 03:39:50PM +0100, Jan Beulich wrote:
> No IRQ balancing is supposed to be happening on the broadcast IRQs. The
> only entity responsible for fiddling with the CPU affinities is
> set_channel_irq_affinity(). They shouldn't even be fiddled with when
> offlining a CPU: A CPU going down can't at the same time be idle. Some
> properties (->arch.cpu_mask in particular) may transiently reference an
> offline CPU, but that'll be adjusted as soon as a channel goes into active
> use again.

Hm, we where likely pointlessly migrating the HPET vector in
fixup_irqs() previous to this change, but such movement shouldn't be
fatal, just pointless.

> Along with adjusting fixup_irqs() (in a more general way, i.e. covering all
> vectors which are marked in use globally), also adjust section placement of
> used_vectors.
> 
> Signed-off-by: Jan Beulich <jbeulich@suse.com>

Reviewed-by: Roger Pau Monné <roger.pau@citrix.com>

Thanks, Roger.