[v3,14/36] genirq: Introduce helper function irq_data_get_affinity_mask()

Commit Message

Jiang Liu June 1, 2015, 8:05 a.m. UTC

Introduce helper function irq_data_get_affinity_mask() and
irq_get_affinity_mask() to hide implementation details,
so we could move field 'affinity' from struct irq_data into
struct irq_common_data later.

Signed-off-by: Jiang Liu <[e-mail]>
Acked-by: Russell King <[e-mail]>
---
 include/linux/irq.h |   12 ++++++++++++
 1 file changed, 12 insertions(+)

Patch

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 68874efe19d3..91fbf10bdae0 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -656,6 +656,18 @@  static inline int irq_data_get_node(struct irq_data *d)
 	return irq_common_data_get_node(d->common);
 }
 
+static inline struct cpumask *irq_get_affinity_mask(int irq)
+{
+	struct irq_data *d = irq_get_irq_data(irq);
+
+	return d ? d->affinity : NULL;
+}
+
+static inline struct cpumask *irq_data_get_affinity_mask(struct irq_data *d)
+{
+	return d->affinity;
+}
+
 unsigned int arch_dynirq_lower_bound(unsigned int from);
 
 int __irq_alloc_descs(int irq, unsigned int from, unsigned int cnt, int node,