Messages in this thread Patch in this message | | | From | Chris Smith <> | Subject | [PATCH 1/2] genirq: Provide an accessor for IRQ_PER_CPU flag. | Date | Mon, 30 Jul 2012 15:32:11 +0100 |
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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.
Signed-off-by: Chris Smith <chris.smith@st.com> --- include/linux/irqdesc.h | 8 ++++++++ 1 files changed, 8 insertions(+), 0 deletions(-)
diff --git a/include/linux/irqdesc.h b/include/linux/irqdesc.h index f1e2527..771cb35 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) { -- 1.7.6.5
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