#include <linux/irq.h>#include <linux/interrupt.h> #include "internals.h" void irq_move_masked_irq(struct irq_data *idata){	struct irq_desc *desc = irq_data_to_desc(idata);	struct irq_chip *chip = idata->chip; 	if (likely(!irqd_is_setaffinity_pending(&desc->irq_data)))		return; 	/*	 * Paranoia: cpu-local interrupts shouldn't be calling in here anyway.	 */	if (!irqd_can_balance(&desc->irq_data)) {		WARN_ON(1);		return;	} 	irqd_clr_move_pending(&desc->irq_data); 	if (unlikely(cpumask_empty(desc->pending_mask)))		return; 	if (!chip->irq_set_affinity)		return; 	assert_raw_spin_locked(&desc->lock); 	/*	 * If there was a valid mask to work with, please	 * do the disable, re-program, enable sequence.	 * This is *not* particularly important for level triggered	 * but in a edge trigger case, we might be setting rte	 * when an active trigger is coming in. This could	 * cause some ioapics to mal-function.	 * Being paranoid i guess!	 *	 * For correct operation this depends on the caller	 * masking the irqs.	 */	if (cpumask_any_and(desc->pending_mask, cpu_online_mask) < nr_cpu_ids)		irq_do_set_affinity(&desc->irq_data, desc->pending_mask, false); 	cpumask_clear(desc->pending_mask);} void irq_move_irq(struct irq_data *idata){	bool masked; 	if (likely(!irqd_is_setaffinity_pending(idata)))		return; 	if (unlikely(irqd_irq_disabled(idata)))		return; 	/*	 * Be careful vs. already masked interrupts. If this is a	 * threaded interrupt with ONESHOT set, we can end up with an	 * interrupt storm.	 */	masked = irqd_irq_masked(idata);	if (!masked)		idata->chip->irq_mask(idata);	irq_move_masked_irq(idata);	if (!masked)		idata->chip->irq_unmask(idata);}