From a8d436d5bb7ce815fe38ec9a40dc9cbb466066aa Mon Sep 17 00:00:00 2001 From: Chris Smith Date: Fri, 10 Aug 2012 13:43:16 -0700 Subject: [PATCH] genirq: Provide an accessor for IRQ_PER_CPU flag Adds an accessor function, irq_is_per_cpu(), for the flag IRQ_PER_CPU. This is useful if you have an IRQ that is per-cpu in some hardware implementations, and not in others (example: ARM PMU Interrupts), and you want to handle both cases. Change-Id: Ic176ee5b8f9a830c1db35cb939ec659a4cf3f938 Signed-off-by: Chris Smith Signed-off-by: Rohit Vaswani --- include/linux/irqdesc.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index f1e2527006bd..771cb3543488 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -154,6 +154,14 @@ static inline int irq_balancing_disabled(unsigned int irq) return desc->status_use_accessors & IRQ_NO_BALANCING_MASK; } +static inline int irq_is_per_cpu(unsigned int irq) +{ + struct irq_desc *desc; + + desc = irq_to_desc(irq); + return desc->status_use_accessors & IRQ_PER_CPU; +} + static inline void irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) {