irqchip/i8259: Prepare i8259_irq_dispatch for irq argument removal

Make irq a local variable and retrieve domain from the irq descriptor
which avoid a redundant lookup.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Ralf Baechle <ralf@linux-mips.org>

1 files changed, 3 insertions, 2 deletions

diff --git a/drivers/irqchip/irq-i8259.c b/drivers/irqchip/irq-i8259.c
index a29638a1e6e5..4836102ba312 100644
--- a/drivers/irqchip/irq-i8259.c
+++ b/drivers/irqchip/irq-i8259.c
@@ -352,10 +352,11 @@ void __init init_i8259_irqs(void)
         __init_i8259_irqs(NULL);
 }
 
-static void i8259_irq_dispatch(unsigned int irq, struct irq_desc *desc)
+static void i8259_irq_dispatch(unsigned int __irq, struct irq_desc *desc)
 {
-        struct irq_domain *domain = irq_get_handler_data(irq);
+        struct irq_domain *domain = irq_desc_get_handler_data(desc);
         int hwirq = i8259_irq();
+        unsigned int irq;
 
         if (hwirq < 0)
                 return;