[PATCH] irq: add irq_node

[Yinghai Lu]

to return irq_desc node info

Signed-off-by: Yinghai Lu <yinghai@xxxxxxxxxx>

---
 include/linux/irqnr.h |    6 ++++++
 1 file changed, 6 insertions(+)

Index: linux-2.6/include/linux/irqnr.h
===================================================================
--- linux-2.6.orig/include/linux/irqnr.h
+++ linux-2.6/include/linux/irqnr.h
@@ -41,6 +41,12 @@ extern struct irq_desc *irq_to_desc(unsi
 			;						\
 		else
 
+#ifdef CONFIG_SMP
+#define irq_node(irq)	(irq_to_desc(irq)->node)
+#else
+#define irq_node(irq)	0
+#endif
+
 #endif /* CONFIG_GENERIC_HARDIRQS */
 
 #define for_each_irq_nr(irq)                   \
--
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