genirq: Avoid double loop on suspend
We can synchronize the suspended interrupts right away. No need for an extra loop. Signed-off-by: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
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@ -49,10 +49,10 @@ void irq_pm_remove_action(struct irq_desc *desc, struct irqaction *action)
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desc->no_suspend_depth--;
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}
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static void suspend_device_irq(struct irq_desc *desc, int irq)
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static bool suspend_device_irq(struct irq_desc *desc, int irq)
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{
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if (!desc->action || desc->no_suspend_depth)
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return;
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return false;
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desc->istate |= IRQS_SUSPENDED;
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__disable_irq(desc, irq);
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@ -65,6 +65,7 @@ static void suspend_device_irq(struct irq_desc *desc, int irq)
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*/
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if (irq_desc_get_chip(desc)->flags & IRQCHIP_MASK_ON_SUSPEND)
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mask_irq(desc);
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return true;
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}
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/**
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@ -86,15 +87,15 @@ void suspend_device_irqs(void)
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for_each_irq_desc(irq, desc) {
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unsigned long flags;
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bool sync;
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raw_spin_lock_irqsave(&desc->lock, flags);
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suspend_device_irq(desc, irq);
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sync = suspend_device_irq(desc, irq);
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raw_spin_unlock_irqrestore(&desc->lock, flags);
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}
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for_each_irq_desc(irq, desc)
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if (desc->istate & IRQS_SUSPENDED)
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if (sync)
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synchronize_irq(irq);
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}
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}
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EXPORT_SYMBOL_GPL(suspend_device_irqs);
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