* Stephen Rothwell [off-list ref] wrote:

Hi Dave,

The sparc32 allmodconfig build of linux-next (next-20080827) failed like
this (among other things):

ERROR: "nr_irqs" [drivers/net/hamradio/baycom_ser_fdx.ko] undefined!
ERROR: "nr_irqs" [drivers/net/3c59x.ko] undefined!

Introduced by the sparseirq tree.

nr_irqs is not exported for sparc.  I will add a patch to add the export
to linux-next today.

thanks - the patch below should fix all those architectures. (there's 
also s390)

	Ingo

---------->

From 3af7043c57080f1ae7cd80c661d3e1308f164e1b Mon Sep 17 00:00:00 2001

From: Ingo Molnar <redacted>
Date: Thu, 28 Aug 2008 08:56:33 +0200
Subject: [PATCH] sparseirq: export nr_irqs on m68k/sparc/s390

Stephen Rothwell reported such build failures on m68k/sparc/s390:

ERROR: "nr_irqs" [drivers/net/hamradio/baycom_ser_fdx.ko] undefined!
ERROR: "nr_irqs" [drivers/net/3c59x.ko] undefined!

export nr_irqs on these architectures too.

Reported-by: Stephen Rothwell <redacted>
Signed-off-by: Ingo Molnar <redacted>
---
 arch/m68k/kernel/ints.c |    1 +
 arch/s390/kernel/irq.c  |    1 +
 arch/sparc/kernel/irq.c |    1 +
 3 files changed, 3 insertions(+), 0 deletions(-)

diff --git a/arch/m68k/kernel/ints.c b/arch/m68k/kernel/ints.c
index d8aebfc..8dd5591 100644
--- a/arch/m68k/kernel/ints.c
+++ b/arch/m68k/kernel/ints.c

@@ -47,6 +47,7 @@
 #endif
 
 int nr_irqs = NR_IRQS;
+EXPORT_SYMBOL(nr_irqs);
 
 extern u32 auto_irqhandler_fixup[];
 extern u32 user_irqhandler_fixup[];

diff --git a/arch/s390/kernel/irq.c b/arch/s390/kernel/irq.c
index 14eb549..3624c4a 100644
--- a/arch/s390/kernel/irq.c
+++ b/arch/s390/kernel/irq.c

@@ -18,6 +18,7 @@
 #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 059598b..4b99e3c 100644
--- a/arch/sparc/kernel/irq.c
+++ b/arch/sparc/kernel/irq.c

@@ -57,6 +57,7 @@
 #endif /* SMP */
 
 int nr_irqs = NR_IRQS;
+EXPORT_SYMBOL(nr_irqs);
 
 unsigned long __raw_local_irq_save(void)
 {