From 85b07cd1aa50aca8331e5dfe3b2ccb2eb391b183 Mon Sep 17 00:00:00 2001
From: Al Viro <viro@ftp.linux.org.uk>
Date: Thu, 12 Jan 2006 01:06:10 -0800
Subject: [PATCH] m68k: compile fix - hardirq checks were in wrong place

move the sanity check for NR_IRQS being no more than 1<<HARDIRQ_BITS from
asm-m68k/hardirq.h to asm-m68k/irq.h; needed since NR_IRQS is not necessary
know at the points of inclusion of asm/hardirq.h due to the rather ugly header
dependencies on m68k.  Fix is by far simpler than trying to massage those
dependencies...

Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
Cc: Roman Zippel <zippel@linux-m68k.org>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>
---
 include/asm-m68k/irq.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'include/asm-m68k/irq.h')

diff --git a/include/asm-m68k/irq.h b/include/asm-m68k/irq.h
index 127ad190cf2d..325c86f8512d 100644
--- a/include/asm-m68k/irq.h
+++ b/include/asm-m68k/irq.h
@@ -22,6 +22,15 @@
 #define NR_IRQS (24+SYS_IRQS)
 #endif
 
+/*
+ * The hardirq mask has to be large enough to have
+ * space for potentially all IRQ sources in the system
+ * nesting on a single CPU:
+ */
+#if (1 << HARDIRQ_BITS) < NR_IRQS
+# error HARDIRQ_BITS is too low!
+#endif
+
 /*
  * Interrupt source definitions
  * General interrupt sources are the level 1-7.
-- 
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