Re: [PATCH v2 06/13] PCI: xgene-msi: Drop superfluous fields from xgene_msi structure

[Markus Elfring]

…
> +++ b/drivers/pci/controller/pci-xgene-msi.c
…
> @@ -214,7 +212,7 @@ static void xgene_irq_domain_free(struct irq_domain *domain,
>  	mutex_lock(&msi->bitmap_lock);
>  
>  	hwirq = hwirq_to_canonical_hwirq(d->hwirq);
> -	bitmap_clear(msi->bitmap, hwirq, msi->num_cpus);
> +	bitmap_clear(msi->bitmap, hwirq, num_possible_cpus());
>  
>  	mutex_unlock(&msi->bitmap_lock);
…

Under which circumstances would you become interested to apply a statement
like “guard(mutex)(&msi->bitmap_lock);”?
https://elixir.bootlin.com/linux/v6.16-rc6/source/include/linux/mutex.h#L225

Regards,
Markus