Commit b171f712 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq/manage: Rework irq_percpu_is_enabled() 



Use the new guards to get and lock the interrupt descriptor and tidy up the
code.

No functional change.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250429065422.376836282@linutronix.de
parent 508bd94c

kernel/irq/manage.c

+3 −13
Original line number Diff line number Diff line
@@ -2322,19 +2322,9 @@ void enable_percpu_nmi(unsigned int irq, unsigned int type) 
 */

bool irq_percpu_is_enabled(unsigned int irq)

{

	unsigned int cpu = smp_processor_id();

	struct irq_desc *desc;

	unsigned long flags;

	bool is_enabled;



	desc = irq_get_desc_lock(irq, &flags, IRQ_GET_DESC_CHECK_PERCPU);

	if (!desc)

	scoped_irqdesc_get_and_lock(irq, IRQ_GET_DESC_CHECK_PERCPU)

		return cpumask_test_cpu(smp_processor_id(), scoped_irqdesc->percpu_enabled);

	return false;



	is_enabled = cpumask_test_cpu(cpu, desc->percpu_enabled);

	irq_put_desc_unlock(desc, flags);



	return is_enabled;

}

EXPORT_SYMBOL_GPL(irq_percpu_is_enabled);