1359 static int irq_setup_forced_threading(struct irqaction *new)  in irq_setup_forced_threading()  argument
1363 	if (new->flags & (IRQF_NO_THREAD | IRQF_PERCPU | IRQF_ONESHOT))  in irq_setup_forced_threading()
1370 	if (new->handler == irq_default_primary_handler)  in irq_setup_forced_threading()
1373 	new->flags |= IRQF_ONESHOT;  in irq_setup_forced_threading()
1380 	if (new->handler && new->thread_fn) {  in irq_setup_forced_threading()
1382 		new->secondary = kzalloc(sizeof(struct irqaction), GFP_KERNEL);  in irq_setup_forced_threading()
1383 		if (!new->secondary)  in irq_setup_forced_threading()
1385 		new->secondary->handler = irq_forced_secondary_handler;  in irq_setup_forced_threading()
1386 		new->secondary->thread_fn = new->thread_fn;  in irq_setup_forced_threading()
1387 		new->secondary->dev_id = new->dev_id;  in irq_setup_forced_threading()
1388 		new->secondary->irq = new->irq;  in irq_setup_forced_threading()
1389 		new->secondary->name = new->name;  in irq_setup_forced_threading()
1392 	set_bit(IRQTF_FORCED_THREAD, &new->thread_flags);  in irq_setup_forced_threading()
1393 	new->thread_fn = new->handler;  in irq_setup_forced_threading()
1394 	new->handler = irq_default_primary_handler;  in irq_setup_forced_threading()
1449 setup_irq_thread(struct irqaction *new, unsigned int irq, bool secondary)  in setup_irq_thread()  argument
1454 		t = kthread_create(irq_thread, new, "irq/%d-%s", irq,  in setup_irq_thread()
1455 				   new->name);  in setup_irq_thread()
1457 		t = kthread_create(irq_thread, new, "irq/%d-s-%s", irq,  in setup_irq_thread()
1458 				   new->name);  in setup_irq_thread()
1469 	new->thread = get_task_struct(t);  in setup_irq_thread()
1479 	set_bit(IRQTF_AFFINITY, &new->thread_flags);  in setup_irq_thread()
1498 __setup_irq(unsigned int irq, struct irq_desc *desc, struct irqaction *new)  in __setup_irq()  argument
1512 	new->irq = irq;  in __setup_irq()
1518 	if (!(new->flags & IRQF_TRIGGER_MASK))  in __setup_irq()
1519 		new->flags |= irqd_get_trigger_type(&desc->irq_data);  in __setup_irq()
1527 		if (!new->thread_fn) {  in __setup_irq()
1536 		new->handler = irq_nested_primary_handler;  in __setup_irq()
1539 			ret = irq_setup_forced_threading(new);  in __setup_irq()
1550 	if (new->thread_fn && !nested) {  in __setup_irq()
1551 		ret = setup_irq_thread(new, irq, false);  in __setup_irq()
1554 		if (new->secondary) {  in __setup_irq()
1555 			ret = setup_irq_thread(new->secondary, irq, true);  in __setup_irq()
1571 		new->flags &= ~IRQF_ONESHOT;  in __setup_irq()
1594 			       new->name, irq, desc->irq_data.chip->name);  in __setup_irq()
1621 				new->name, irq, desc->irq_data.chip->name);  in __setup_irq()
1633 			oldtype = new->flags & IRQF_TRIGGER_MASK;  in __setup_irq()
1637 		if (!((old->flags & new->flags) & IRQF_SHARED) ||  in __setup_irq()
1638 		    (oldtype != (new->flags & IRQF_TRIGGER_MASK)) ||  in __setup_irq()
1639 		    ((old->flags ^ new->flags) & IRQF_ONESHOT))  in __setup_irq()
1644 		    (new->flags & IRQF_PERCPU))  in __setup_irq()
1666 	if (new->flags & IRQF_ONESHOT) {  in __setup_irq()
1695 		new->thread_mask = 1UL << ffz(thread_mask);  in __setup_irq()
1697 	} else if (new->handler == irq_default_primary_handler &&  in __setup_irq()
1715 		       new->name, irq);  in __setup_irq()
1722 		if (new->flags & IRQF_TRIGGER_MASK) {  in __setup_irq()
1724 						new->flags & IRQF_TRIGGER_MASK);  in __setup_irq()
1749 		if (new->flags & IRQF_PERCPU) {  in __setup_irq()
1752 			if (new->flags & IRQF_NO_DEBUG)  in __setup_irq()
1759 		if (new->flags & IRQF_ONESHOT)  in __setup_irq()
1763 		if (new->flags & IRQF_NOBALANCING) {  in __setup_irq()
1768 		if (!(new->flags & IRQF_NO_AUTOEN) &&  in __setup_irq()
1778 			WARN_ON_ONCE(new->flags & IRQF_SHARED);  in __setup_irq()
1783 	} else if (new->flags & IRQF_TRIGGER_MASK) {  in __setup_irq()
1784 		unsigned int nmsk = new->flags & IRQF_TRIGGER_MASK;  in __setup_irq()
1793 	*old_ptr = new;  in __setup_irq()
1795 	irq_pm_install_action(desc, new);  in __setup_irq()
1814 	irq_setup_timings(desc, new);  in __setup_irq()
1816 	wake_up_and_wait_for_irq_thread_ready(desc, new);  in __setup_irq()
1817 	wake_up_and_wait_for_irq_thread_ready(desc, new->secondary);  in __setup_irq()
1820 	new->dir = NULL;  in __setup_irq()
1821 	register_handler_proc(irq, new);  in __setup_irq()
1825 	if (!(new->flags & IRQF_PROBE_SHARED)) {  in __setup_irq()
1827 		       irq, new->flags, new->name, old->flags, old->name);  in __setup_irq()
1844 	if (new->thread) {  in __setup_irq()
1845 		struct task_struct *t = new->thread;  in __setup_irq()
1847 		new->thread = NULL;  in __setup_irq()
1851 	if (new->secondary && new->secondary->thread) {  in __setup_irq()
1852 		struct task_struct *t = new->secondary->thread;  in __setup_irq()
1854 		new->secondary->thread = NULL;  in __setup_irq()