[PATCH v2 2/6] genirq: Allow an interrupt to be marked as 'raw'

[Peter Zijlstra]

On Tue, Nov 24, 2020 at 02:14:45PM +0000, Marc Zyngier wrote:
> Some interrupts (such as the rescheduling IPI) rely on not going through
> the irq_enter()/irq_exit() calls. To distinguish such interrupts, add
> a new IRQ flag that allows the low-level handling code to sidestep the
> enter()/exit() calls.

Well, not quite. The scheduler_ipi() function is perfectly fine being
called with irq_enter/irq_exit. As per this very series, that's your
current reality.

The function just doesn't need it.