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-rw-r--r--include/linux/interrupt.h19
1 files changed, 19 insertions, 0 deletions
diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index f8ab4ce7056..b5fef13148b 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -102,6 +102,25 @@ extern void disable_irq_nosync(unsigned int irq);
extern void disable_irq(unsigned int irq);
extern void enable_irq(unsigned int irq);
+#if defined(CONFIG_SMP) && defined(CONFIG_GENERIC_HARDIRQS)
+
+extern int irq_set_affinity(unsigned int irq, cpumask_t cpumask);
+extern int irq_can_set_affinity(unsigned int irq);
+
+#else /* CONFIG_SMP */
+
+static inline int irq_set_affinity(unsigned int irq, cpumask_t cpumask)
+{
+ return -EINVAL;
+}
+
+static inline int irq_can_set_affinity(unsigned int irq)
+{
+ return 0;
+}
+
+#endif /* CONFIG_SMP && CONFIG_GENERIC_HARDIRQS */
+
#ifdef CONFIG_GENERIC_HARDIRQS
/*
* Special lockdep variants of irq disabling/enabling.