From d532676cc7329e1088702ccb0015942cc370b954 Mon Sep 17 00:00:00 2001
From: Thomas Gleixner <tglx@linutronix.de>
Date: Wed, 19 Mar 2014 11:19:52 +0100
Subject: [PATCH] softirq: Add linux/irq.h to make it compile again

On Sparc and S390 the removal of irq.h from kernel_stat.h causes:

   kernel/softirq.c:774:9: error: 'NR_IRQS_LEGACY' undeclared

Reported-by: Peter Zijlstra <peterz@infradead.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
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