On 2020-10-20 07:43, Sumit Garg wrote:
On Mon, 19 Oct 2020 at 17:07, Marc Zyngier <m...@kernel.org> wrote:

[...]

> +{
> +     if (!ipi_desc)
> +             return;
> +
> +     if (is_nmi) {
> +             if (!prepare_percpu_nmi(ipi_id))
> +                     enable_percpu_nmi(ipi_id, IRQ_TYPE_NONE);
> +     } else {
> +             enable_percpu_irq(ipi_id, IRQ_TYPE_NONE);

I'm not keen on this. Normal IRQs can't reliably work, so why do you
even bother with this?

Yeah I agree but we need to support existing functionality for kgdb
roundup and sysrq backtrace using normal IRQs as well.

When has this become a requirement? I don't really see the point in
implementing something that is known not to work.

        M.
--
Jazz is not dead. It just smells funny...

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