genirq: define nr_irqs for architectures with GENERIC_HARDIRQS=n

Revert the sparse irq changes in m68k/s390/sparc and just define
nr_irqs as NR_IRQS for those architectures.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

1 files changed, 5 insertions, 3 deletions

diff --git a/include/linux/interrupt.h b/include/linux/interrupt.h
index d4039a0b23f4..5a57df2ee922 100644
--- a/include/linux/interrupt.h
+++ b/include/linux/interrupt.h
@@ -15,11 +15,13 @@
 #include <asm/ptrace.h>
 #include <asm/system.h>
 
-extern int nr_irqs;
-
 #ifndef CONFIG_GENERIC_HARDIRQS
-#define for_each_irq_desc(irq, desc)            \
+# define for_each_irq_desc(irq, desc)           \
         for (irq = 0; irq < nr_irqs; irq++)
+
+# define nr_irqs                NR_IRQS
+#else
+extern int nr_irqs;
 #endif
 
 /*