irqchip/brcmstb-l2: Prepare brcmstb_l2_intc_irq_handle 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: Julia Lawall <Julia.Lawall@lip6.fr>

drivers/irqchip/irq-brcmstb-l2.c

@@ -49,11 +49,13 @@ struct brcmstb_l2_intc_data {
 	u32 saved_mask; /* for suspend/resume */
 };
 
-static void brcmstb_l2_intc_irq_handle(unsigned int irq, struct irq_desc *desc)
+static void brcmstb_l2_intc_irq_handle(unsigned int __irq,
+				       struct irq_desc *desc)
 {
 	struct brcmstb_l2_intc_data *b = irq_desc_get_handler_data(desc);
 	struct irq_chip_generic *gc = irq_get_domain_generic_chip(b->domain, 0);
 	struct irq_chip *chip = irq_desc_get_chip(desc);
+	unsigned int irq = irq_desc_get_irq(desc);
 	u32 status;
 
 	chained_irq_enter(chip, desc);