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>

4 files changed, 5 insertions, 13 deletions

diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c
index 44169e4cd91d..7e8a0d394e61 100644
--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c
@@ -46,9 +46,6 @@
 #include <asm/q40ints.h>
 #endif
 
-int nr_irqs = NR_IRQS;
-EXPORT_SYMBOL(nr_irqs);
-
 extern u32 auto_irqhandler_fixup[];
 extern u32 user_irqhandler_fixup[];
 extern u16 user_irqvec_fixup[];
diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 3624c4a0037a..e7c5bfb7c755 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c
@@ -17,9 +17,6 @@
 #include <linux/proc_fs.h>
 #include <linux/profile.h>
 
-int nr_irqs = NR_IRQS;
-EXPORT_SYMBOL(nr_irqs);
-
 /*
  * show_interrupts is needed by /proc/interrupts.
  */
diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c
index 4b99e3ce3916..93e1d1c65290 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c
@@ -55,10 +55,6 @@
 #define SMP_NOP2
 #define SMP_NOP3
 #endif /* SMP */
-
-int nr_irqs = NR_IRQS;
-EXPORT_SYMBOL(nr_irqs);
-
 unsigned long __raw_local_irq_save(void)
 {
         unsigned long retval;
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
 
 /*