Donate to e Foundation | Murena handsets with /e/OS | Own a part of Murena! Learn more

Commit 8b8d94a7 authored by MaJun's avatar MaJun Committed by Marc Zyngier
Browse files

irqchip/gicv3-its: Skip irq affinity setting when target cpu is the same as current setting 



Just skip the irq affinity setting when the target cpu is the same as
current setting.
This is a small optimization for irq affinity setting logic.

Signed-off-by: default avatarMaJun <majun258@huawei.com>
Signed-off-by: default avatarMarc Zyngier <marc.zyngier@arm.com>
parent 3403b025

drivers/irqchip/irq-gic-v3-its.c

+6 −3
Original line number Diff line number Diff line
@@ -644,9 +644,12 @@ static int its_set_affinity(struct irq_data *d, const struct cpumask *mask_val, 
	if (cpu >= nr_cpu_ids)

		return -EINVAL;



	/* don't set the affinity when the target cpu is same as current one */

	if (cpu != its_dev->event_map.col_map[id]) {

		target_col = &its_dev->its->collections[cpu];

		its_send_movi(its_dev, target_col, id);

		its_dev->event_map.col_map[id] = cpu;

	}



	return IRQ_SET_MASK_OK_DONE;

}