genirq: Provide compat handling for chip->mask()

Wrap the old chip function mask() until the migration is complete and
the old chip functions are removed.

Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Cc: Peter Zijlstra <peterz@infradead.org>
LKML-Reference: <20100927121841.940355859@linutronix.de>
Reviewed-by: H. Peter Anvin <hpa@zytor.com>
Reviewed-by: Ingo Molnar <mingo@elte.hu>
diff --git a/kernel/irq/migration.c b/kernel/irq/migration.c
index f923c37..b165ec2 100644
--- a/kernel/irq/migration.c
+++ b/kernel/irq/migration.c
@@ -61,7 +61,7 @@
 	if (unlikely(desc->status & IRQ_DISABLED))
 		return;
 
-	desc->irq_data.chip->mask(irq);
+	desc->irq_data.chip->irq_mask(&desc->irq_data);
 	move_masked_irq(irq);
 	desc->irq_data.chip->unmask(irq);
 }