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-rw-r--r--arch/arm/kernel/irq.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/arch/arm/kernel/irq.c b/arch/arm/kernel/irq.c
index c3d4e94ef5b..626feeec0ad 100644
--- a/arch/arm/kernel/irq.c
+++ b/arch/arm/kernel/irq.c
@@ -167,6 +167,16 @@ void __init init_IRQ(void)
}
#ifdef CONFIG_HOTPLUG_CPU
+
+static void route_irq(struct irqdesc *desc, unsigned int irq, unsigned int cpu)
+{
+ pr_debug("IRQ%u: moving from cpu%u to cpu%u\n", irq, desc->cpu, cpu);
+
+ spin_lock_irq(&desc->lock);
+ desc->chip->set_affinity(irq, cpumask_of_cpu(cpu));
+ spin_unlock_irq(&desc->lock);
+}
+
/*
* The CPU has been marked offline. Migrate IRQs off this CPU. If
* the affinity settings do not allow other CPUs, force them onto any