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Commit a60a5dc2 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq: Use handle_irq_event() in handle_edge_irq() 



It's safe to drop the IRQ_INPROGRESS flag between action chain walks
as we are protected by desc->lock.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent a7ae4de5

kernel/irq/chip.c

+2 −14
Original line number Diff line number Diff line
@@ -583,14 +583,8 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc) 
	/* Start handling the irq */

	desc->irq_data.chip->irq_ack(&desc->irq_data);



	/* Mark the IRQ currently in progress.*/

	desc->status |= IRQ_INPROGRESS;



	do {

		struct irqaction *action = desc->action;

		irqreturn_t action_ret;



		if (unlikely(!action)) {

		if (unlikely(!desc->action)) {

			mask_irq(desc);

			goto out_unlock;

		}
@@ -606,16 +600,10 @@ handle_edge_irq(unsigned int irq, struct irq_desc *desc) 
			unmask_irq(desc);

		}



		desc->status &= ~IRQ_PENDING;

		raw_spin_unlock(&desc->lock);

		action_ret = handle_IRQ_event(irq, action);

		if (!noirqdebug)

			note_interrupt(irq, desc, action_ret);

		raw_spin_lock(&desc->lock);

		handle_irq_event(desc);



	} while ((desc->status & (IRQ_PENDING | IRQ_DISABLED)) == IRQ_PENDING);



	desc->status &= ~IRQ_INPROGRESS;

out_unlock:

	raw_spin_unlock(&desc->lock);

}