sh/intc: Prepare irq flow handlers for irq argument removal

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 <tglx@linutronix.de>
Cc: Jiang Liu <jiang.liu@linux.intel.com>
Cc: Simon Horman <horms@verge.net.au>
Cc: Magnus Damm <magnus.damm@gmail.com>
Cc: Julia Lawall <Julia.Lawall@lip6.fr>
Link: http://lkml.kernel.org/r/20150713151626.872605327@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>

arch/sh/boards/mach-se/7724/irq.c

@@ -92,8 +92,9 @@ static struct irq_chip se7724_irq_chip __read_mostly = {
 	.irq_unmask	= enable_se7724_irq,
 };
 
-static void se7724_irq_demux(unsigned int irq, struct irq_desc *desc)
+static void se7724_irq_demux(unsigned int __irq, struct irq_desc *desc)
 {
+	unsigned int irq = irq_desc_get_irq(desc);
 	struct fpga_irq set = get_fpga_irq(irq);
 	unsigned short intv = __raw_readw(set.sraddr);
 	unsigned int ext_irq = set.base;

drivers/sh/intc/virq.c

@@ -109,8 +109,9 @@ static int add_virq_to_pirq(unsigned int irq, unsigned int virq)
 	return 0;
 }
 
-static void intc_virq_handler(unsigned int irq, struct irq_desc *desc)
+static void intc_virq_handler(unsigned int __irq, struct irq_desc *desc)
 {
+	unsigned int irq = irq_desc_get_irq(desc);
 	struct irq_data *data = irq_desc_get_irq_data(desc);
 	struct irq_chip *chip = irq_data_get_irq_chip(data);
 	struct intc_virq_list *entry, *vlist = irq_data_get_irq_handler_data(data);