[RFC PATCH v2 01/10] genirq: generic chip: export irq_map_generic_chip function

[Boris BREZILLON <b.brezillon.dev@gmail.com>]

Export the generic irq map function in order to provide irq_domain ops with
generic mapping and specific of xlate function (needed by the new atmel
AIC driver).

Signed-off-by: Boris BREZILLON <b.brezillon.dev@gmail.com>
---
 include/linux/irq.h       |    2 ++
 kernel/irq/generic-chip.c |    5 +++--
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 7dc1003..19b5e3b 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -765,6 +765,8 @@ void irq_gc_eoi(struct irq_data *d);
 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);
 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 452d6f2..cf80e7b 100644
--- a/kernel/irq/generic-chip.c
+++ b/kernel/irq/generic-chip.c
@@ -341,8 +341,8 @@ static struct lock_class_key irq_nested_lock_class;
 /*
  * irq_map_generic_chip - Map a generic chip for an irq domain
  */
-static int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
-				irq_hw_number_t hw_irq)
+int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
+			 irq_hw_number_t hw_irq)
 {
 	struct irq_data *data = irq_get_irq_data(virq);
 	struct irq_domain_chip_generic *dgc = d->gc;
@@ -394,6 +394,7 @@ static int irq_map_generic_chip(struct irq_domain *d, unsigned int virq,
 	irq_modify_status(virq, dgc->irq_flags_to_clear, dgc->irq_flags_to_set);
 	return 0;
 }
+EXPORT_SYMBOL_GPL(irq_map_generic_chip);
 
 struct irq_domain_ops irq_generic_chip_ops = {
 	.map	= irq_map_generic_chip,
-- 
1.7.9.5