diff --git a/include/linux/irq.h b/include/linux/irq.h
index 34a65cb1cd9e02fbf5a31ec770a5907d9b3e51c5..25f85db794c124319e9ff65f0c6f3a8ba7f4e04e 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -1130,6 +1130,7 @@ int irq_gc_set_wake(struct irq_data *d, unsigned int on);
 /* Setup functions for irq_chip_generic */
 int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
 			 irq_hw_number_t hw_irq);
+void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq);
 struct irq_chip_generic *
 irq_alloc_generic_chip(const char *name, int nr_ct, unsigned int irq_base,
 		       void __iomem *reg_base, irq_flow_handler_t handler);
diff --git a/kernel/irq/generic-chip.c b/kernel/irq/generic-chip.c
index e2999a070a99a2b9495d1406e7727b91f980a7ee..3c63a066bec32804704f95568fd42e2e44c0dd16 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -424,7 +424,7 @@ int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
 	return 0;
 }
 
-static void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq)
+void irq_unmap_generic_chip(struct irq_domain *d, unsigned int virq)
 {
 	struct irq_data *data = irq_domain_get_irq_data(d, virq);
 	struct irq_domain_chip_generic *dgc = d->gc;