From d60458b224d6b997a582a05cb8c4b9bed9e17a1d Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yhlu.kernel@gmail.com>
Date: Tue, 19 Aug 2008 20:50:00 -0700
Subject: irq: make irq_desc to use dyn_array

Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---
 include/linux/irq.h | 4 ++++
 1 file changed, 4 insertions(+)

(limited to 'include')

diff --git a/include/linux/irq.h b/include/linux/irq.h
index 1d73d1abb83..5f4b013624d 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -179,7 +179,11 @@ struct irq_desc {
 	const char		*name;
 } ____cacheline_internodealigned_in_smp;
 
+#ifdef CONFIG_HAVE_DYN_ARRAY
+extern struct irq_desc *irq_desc;
+#else
 extern struct irq_desc irq_desc[NR_IRQS];
+#endif
 
 /*
  * Migration helpers for obsolete names, they will go away:
-- 
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