irqchip: nvic: Use the generic noop function

Using the generic function saves looking up this custom one in a source
navigator.

Signed-off-by: Daniel Thompson <daniel.thompson@linaro.org>
Link: https://lkml.kernel.org/r/1401894112-13386-1-git-send-email-daniel.thompson@linaro.org
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Jason Cooper <jason@lakedaemon.net>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Jason Cooper <jason@lakedaemon.net>

drivers/irqchip/irq-nvic.c

@@ -49,14 +49,6 @@ nvic_handle_irq(irq_hw_number_t hwirq, struct pt_regs *regs)
 	handle_IRQ(irq, regs);
 }
 
-static void nvic_eoi(struct irq_data *d)
-{
-	/*
-	 * This is a no-op as end of interrupt is signaled by the exception
-	 * return sequence.
-	 */
-}
-
 static int __init nvic_of_init(struct device_node *node,
 			       struct device_node *parent)
 {
@@ -102,7 +94,10 @@ static int __init nvic_of_init(struct device_node *node,
 		gc->chip_types[0].regs.disable = NVIC_ICER;
 		gc->chip_types[0].chip.irq_mask = irq_gc_mask_disable_reg;
 		gc->chip_types[0].chip.irq_unmask = irq_gc_unmask_enable_reg;
-		gc->chip_types[0].chip.irq_eoi = nvic_eoi;
+		/* This is a no-op as end of interrupt is signaled by the
+		 * exception return sequence.
+		 */
+		gc->chip_types[0].chip.irq_eoi = irq_gc_noop;
 
 		/* disable interrupts */
 		writel_relaxed(~0, gc->reg_base + NVIC_ICER);