From f61ae4fb66a4f7ae49e3456003fc4328d6db09c9 Mon Sep 17 00:00:00 2001 From: Thomas Gleixner Date: Sun, 2 Aug 2015 20:38:26 +0000 Subject: [PATCH] genirq: Provide irq_desc_has_action If we have a reference to irq_desc already, there is no point to do another lookup. Signed-off-by: Thomas Gleixner Cc: Jiang Liu Cc: Peter Zijlstra Cc: Rusty Russell Cc: Bjorn Helgaas Link: http://lkml.kernel.org/r/20150802203609.638130301@linutronix.de Signed-off-by: Thomas Gleixner --- include/linux/irqdesc.h | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index fcea4e48e21f..5acfa26602e1 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -166,10 +166,14 @@ static inline int handle_domain_irq(struct irq_domain *domain, #endif /* Test to see if a driver has successfully requested an irq */ +static inline int irq_desc_has_action(struct irq_desc *desc) +{ + return desc->action != NULL; +} + static inline int irq_has_action(unsigned int irq) { - struct irq_desc *desc = irq_to_desc(irq); - return desc->action != NULL; + return irq_desc_has_action(irq_to_desc(irq)); } /* caller has locked the irq_desc and both params are valid */