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genirq: Add a helper to spread an affinity mask for MSI/MSI-X vectors
[cascardo/linux.git]
/
include
/
linux
/
interrupt.h
diff --git
a/include/linux/interrupt.h
b/include/linux/interrupt.h
index
9fcabeb
..
b6683f0
100644
(file)
--- a/
include/linux/interrupt.h
+++ b/
include/linux/interrupt.h
@@
-278,6
+278,8
@@
extern int irq_set_affinity_hint(unsigned int irq, const struct cpumask *m);
extern int
irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify);
extern int
irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify);
+struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs);
+
#else /* CONFIG_SMP */
static inline int irq_set_affinity(unsigned int irq, const struct cpumask *m)
#else /* CONFIG_SMP */
static inline int irq_set_affinity(unsigned int irq, const struct cpumask *m)
@@
-308,6
+310,12
@@
irq_set_affinity_notifier(unsigned int irq, struct irq_affinity_notify *notify)
{
return 0;
}
{
return 0;
}
+
+static inline struct cpumask *irq_create_affinity_mask(unsigned int *nr_vecs)
+{
+ *nr_vecs = 1;
+ return NULL;
+}
#endif /* CONFIG_SMP */
/*
#endif /* CONFIG_SMP */
/*