irqchip/keystone: Prepare keystone_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.

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

Signed-off-by: Thomas Gleixner 
Cc: Julia Lawall

---
 drivers/irqchip/irq-keystone.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)
 
diff --git a/drivers/irqchip/irq-keystone.c b/drivers/irqchip/irq-keystone.c
index d10244f..c151726 100644
--- a/drivers/irqchip/irq-keystone.c
+++ b/drivers/irqchip/irq-keystone.c
@@ -83,8 +83,9 @@ static void keystone_irq_ack(struct irq_data *d)
 	/* nothing to do here */
 }
 
-static void keystone_irq_handler(unsigned irq, struct irq_desc *desc)
+static void keystone_irq_handler(unsigned __irq, struct irq_desc *desc)
 {
+	unsigned int irq = irq_desc_get_irq(desc);
 	struct keystone_irq_device *kirq = irq_desc_get_handler_data(desc);
 	unsigned long pending;
 	int src, virq;

irqchip/keystone: Prepare keystone_irq_handler for irq argument removal

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