genirq: Fix up irq_node() for irq_data changes.

Now that the node ID is tracked in the irq_data structure, update the
irq_node() definition accordingly. This fixes up irq_node() usage under
GENERIC_HARDIRQS_NO_DEPRECATED && SMP.
Signed-off-by: Paul Mundt <lethal@linux-sh.org>
LKML-Reference: <20101028023031.GB10365@linux-sh.org>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

include/linux/irqnr.h

@@ -43,7 +43,7 @@ unsigned int irq_get_next_irq(unsigned int offset);
 		else
 
 #ifdef CONFIG_SMP
-#define irq_node(irq)	(irq_to_desc(irq)->node)
+#define irq_node(irq)	(irq_get_irq_data(irq)->node)
 #else
 #define irq_node(irq)	0
 #endif