diff --git a/include/linux/irq.h b/include/linux/irq.h
index 6956df9..9e9eb76 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -282,6 +282,7 @@
 extern void handle_simple_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_percpu_irq(unsigned int irq, struct irq_desc *desc);
 extern void handle_bad_irq(unsigned int irq, struct irq_desc *desc);
+extern void handle_nested_irq(unsigned int irq);
 
 /*
  * Monolithic do_IRQ implementation.