Commit 782249a9 authored by Thomas Gleixner's avatar Thomas Gleixner
Browse files

genirq/manage: Rework irq_get_irqchip_state() 



Use the new guards to get and lock the interrupt descriptor and tidy up the
code.

No functional change.

Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
Acked-by: default avatarPeter Zijlstra (Intel) <peterz@infradead.org>
Link: https://lore.kernel.org/all/20250429065422.612184618@linutronix.de
parent 5fec6d5c

kernel/irq/manage.c

+6 −16
Original line number Diff line number Diff line
@@ -2678,24 +2678,14 @@ static int __irq_get_irqchip_state(struct irq_data *data, enum irqchip_irq_state 
 * This function should be called with preemption disabled if the interrupt

 * controller has per-cpu registers.

 */

int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which,

			  bool *state)

int irq_get_irqchip_state(unsigned int irq, enum irqchip_irq_state which, bool *state)

{

	struct irq_desc *desc;

	struct irq_data *data;

	unsigned long flags;

	int err = -EINVAL;



	desc = irq_get_desc_buslock(irq, &flags, 0);

	if (!desc)

		return err;



	data = irq_desc_get_irq_data(desc);



	err = __irq_get_irqchip_state(data, which, state);

	scoped_irqdesc_get_and_buslock(irq, 0) {

		struct irq_data *data = irq_desc_get_irq_data(scoped_irqdesc);



	irq_put_desc_busunlock(desc, flags);

	return err;

		return __irq_get_irqchip_state(data, which, state);

	}

	return -EINVAL;

}

EXPORT_SYMBOL_GPL(irq_get_irqchip_state);