avr32/irq: Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc

Use irq_desc_get_xxx() to avoid redundant lookup of irq_desc while we
already have a pointer to corresponding irq_desc.

Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com>
Acked-by: Hans-Christian Egtvedt <egtvedt@samfundet.no>
Cc: Haavard Skinnemoen <hskinnemoen@gmail.com>
Link: http://lkml.kernel.org/r/20150713100606.527106283@linutronix.de
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

diff --git a/arch/avr32/mach-at32ap/pio.c b/arch/avr32/mach-at32ap/pio.c
index 6c7035a..157a5e0 100644 (file)
--- a/arch/avr32/mach-at32ap/pio.c
+++ b/arch/avr32/mach-at32ap/pio.c
@@ -286,7 +286,7 @@ static void gpio_irq_handler(unsigned irq, struct irq_desc *desc)
        struct pio_device       *pio = irq_desc_get_chip_data(desc);
        unsigned                gpio_irq;
 
-       gpio_irq = (unsigned) irq_get_handler_data(irq);
+       gpio_irq = (unsigned) irq_desc_get_handler_data(desc);
        for (;;) {
                u32             isr;