xtensa: Use irq_set_affinity instead of homebrewn code
There is no point in having an incomplete copy of irq_set_affinity() for the hotplug irq migration code. Use the core function instead and while at it switch to for_each_active_irq() Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Chris Zankel <chris@zankel.net> Cc: xtensa <linux-xtensa@linux-xtensa.org> Link: http://lkml.kernel.org/r/20140223212736.664624945@linutronix.de Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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Родитель
5c331c8626
Коммит
b58d971da3
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@ -155,18 +155,6 @@ void __init init_IRQ(void)
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}
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#ifdef CONFIG_HOTPLUG_CPU
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static void route_irq(struct irq_data *data, unsigned int irq, unsigned int cpu)
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{
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struct irq_desc *desc = irq_to_desc(irq);
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struct irq_chip *chip = irq_data_get_irq_chip(data);
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unsigned long flags;
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raw_spin_lock_irqsave(&desc->lock, flags);
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if (chip->irq_set_affinity)
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chip->irq_set_affinity(data, cpumask_of(cpu), false);
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raw_spin_unlock_irqrestore(&desc->lock, flags);
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}
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/*
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* The CPU has been marked offline. Migrate IRQs off this CPU. If
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* the affinity settings do not allow other CPUs, force them onto any
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@ -175,10 +163,9 @@ static void route_irq(struct irq_data *data, unsigned int irq, unsigned int cpu)
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void migrate_irqs(void)
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{
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unsigned int i, cpu = smp_processor_id();
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struct irq_desc *desc;
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for_each_irq_desc(i, desc) {
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struct irq_data *data = irq_desc_get_irq_data(desc);
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for_each_active_irq(i) {
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struct irq_data *data = irq_get_irq_data(i);
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unsigned int newcpu;
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if (irqd_is_per_cpu(data))
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@ -194,11 +181,8 @@ void migrate_irqs(void)
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i, cpu);
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cpumask_setall(data->affinity);
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newcpu = cpumask_any_and(data->affinity,
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cpu_online_mask);
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}
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route_irq(data, i, newcpu);
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irq_set_affinity(i, data->affinity);
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}
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}
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#endif /* CONFIG_HOTPLUG_CPU */
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