In preparation for allowing code to handle both percpu_devid interrupts using the percpu interrupt APIs, and non-percpu_devid but still percpu interrupts with the regular interrupt APIs, introduce a new irq_is_percpu_devid() helper function to allow callers to check whether an interrupt has the IRQ_PER_CPU_DEVID flag set.
Signed-off-by: Paul Burton <[email protected]> Cc: James Hogan <[email protected]> Cc: Jason Cooper <[email protected]> Cc: Marc Zyngier <[email protected]> Cc: Ralf Baechle <[email protected]> Cc: Thomas Gleixner <[email protected]> Cc: [email protected] Cc: [email protected] --- include/linux/irqdesc.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 3e90a094798d..93960cf36e23 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -244,6 +244,14 @@ static inline int irq_is_percpu(unsigned int irq) return desc->status_use_accessors & IRQ_PER_CPU; } +static inline int irq_is_percpu_devid(unsigned int irq) +{ + struct irq_desc *desc; + + desc = irq_to_desc(irq); + return desc->status_use_accessors & IRQ_PER_CPU_DEVID; +} + static inline void irq_set_lockdep_class(unsigned int irq, struct lock_class_key *class) { -- 2.14.1
