Commit eeb3c956 authored Feb 21, 2017 by Maulik Shah Committed by Satya Durga Srinivasu Prabhala Jan 02, 2019

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: Maulik Shah <mkshah@codeaurora.org>
Signed-off-by: Lingutla Chandrasekhar <clingutla@codeaurora.org>
Signed-off-by: Satya Durga Srinivasu Prabhala <satyap@codeaurora.org>

parent 084c247e

kernel/irq/cpuhotplug.c

+2 −2

Original line number	Diff line number	Diff line
		@@ -132,12 +132,12 @@ 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);