This patch adds an accessor function for IRQ_PER_CPU flag. The accessor function is useful to determine whether an IRQ is percpu or not.
This patch is based on an older patch posted by Chris Smith here [1]. There is a minor change w.r.t. Chris's original patch: The accessor function is renamed as 'irq_is_percpu' instead of 'irq_is_per_cpu'. [1]: http://lkml.indiana.edu/hypermail/linux/kernel/1207.3/02955.html Signed-off-by: Chris Smith <chris.sm...@st.com> Signed-off-by: Vinayak Kale <vk...@apm.com> Acked-by: Will Deacon <will.dea...@arm.com> --- include/linux/irqdesc.h | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index 56fb646..26e2661 100644 --- a/include/linux/irqdesc.h +++ b/include/linux/irqdesc.h @@ -152,6 +152,14 @@ static inline int irq_balancing_disabled(unsigned int irq) return desc->status_use_accessors & IRQ_NO_BALANCING_MASK; } +static inline int irq_is_percpu(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) { -- 1.7.9.5 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
