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Commit 55831c06 authored by Maulik Shah's avatar Maulik Shah Committed by Gerrit - the friendly Code Review server
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genirq: Use irq_set_affinity_locked to change irq affinity 



Currently PM QoS is not getting notifications if irq affinity
is changed by core isolation with irq_do_set_affinity.

Use irq_set_affinity_locked instead to get notifications when
updating affinity.

Change-Id: Iab745a23637d9353f730ca77ac7e92cf61b1bf67
Signed-off-by: default avatarMaulik Shah <mkshah@codeaurora.org>
Signed-off-by: default avatarLingutla Chandrasekhar <clingutla@codeaurora.org>
parent 8e7c0bab

kernel/irq/cpuhotplug.c

+2 −2
Original line number Diff line number Diff line
@@ -131,12 +131,12 @@ static bool migrate_one_irq(struct irq_desc *desc) 
		brokeaff = true;

	}

	/*

	 * Do not set the force argument of irq_do_set_affinity() as this

	 * Do not set the force argument of irq_set_affinity_locked() as this

	 * disables the masking of offline CPUs from the supplied affinity

	 * mask and therefore might keep/reassign the irq to the outgoing

	 * CPU.

	 */

	err = irq_do_set_affinity(d, affinity, false);

	err = irq_set_affinity_locked(d, affinity, false);

	if (err) {

		pr_warn_ratelimited("IRQ%u: set affinity failed(%d).\n",

				    d->irq, err);