mn10300: Use the core irq stats function

Let the core do the irq_desc resolution.

No functional change.

Signed-off-by: Thomas Gleixner <[email protected]>
Cc: Peter Zijlstra <[email protected]>
Cc: David Howells <[email protected]>
Cc: mn10300 <[email protected]>
Link: http://lkml.kernel.org/r/[email protected]
Signed-off-by: Thomas Gleixner <[email protected]>

Author: KAGA-KOKO

arch/mn10300/kernel/mn10300-watchdog.c

@@ -142,7 +142,7 @@ void watchdog_interrupt(struct pt_regs *regs, enum exception_code excep)
 	NMICR = NMICR_WDIF;
 
 	nmi_count(smp_processor_id())++;
-	kstat_incr_irqs_this_cpu(irq, irq_to_desc(irq));
+	kstat_incr_irq_this_cpu(irq);
 
 	for_each_online_cpu(cpu) {