ARM/orion/gpio: Prepare gpio_irq_handler for irq argument removal

Author: Thomas Gleixner <tglx@linutronix.de>

The irq argument of most interrupt flow handlers is unused or merily
used instead of a local variable. The handlers which need the irq
argument can retrieve the irq number from the irq descriptor.

In this case the irq argument is shadowed by a local variable already,
so just rename it.

Search and update was done with coccinelle and the invaluable help of
Julia Lawall.

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall 
Cc: Jiang Liu 
Cc: Russell King 
Cc: linux-arm-kernel@lists.infradead.org

---
 arch/arm/plat-orion/gpio.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
 
diff --git a/arch/arm/plat-orion/gpio.c b/arch/arm/plat-orion/gpio.c
index 62743f3..79c33ec 100644
--- a/arch/arm/plat-orion/gpio.c
+++ b/arch/arm/plat-orion/gpio.c
@@ -407,7 +407,7 @@ static int gpio_irq_set_type(struct irq_data *d, u32 type)
 	return 0;
 }
 
-static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
+static void gpio_irq_handler(unsigned __irq, struct irq_desc *desc)
 {
 	struct orion_gpio_chip *ochip = irq_desc_get_handler_data(desc);
 	u32 cause, type;