diff --git a/kernel/irq/manage.c b/kernel/irq/manage.c
index 5f23a04..e7ef539 100644
--- a/kernel/irq/manage.c
+++ b/kernel/irq/manage.c
@@ -1058,10 +1058,8 @@
 		 * set the trigger type must match. Also all must
 		 * agree on ONESHOT.
 		 */
-		unsigned int oldtype = irqd_get_trigger_type(&desc->irq_data);
-
 		if (!((old->flags & new->flags) & IRQF_SHARED) ||
-		    (oldtype != (new->flags & IRQF_TRIGGER_MASK)) ||
+		    ((old->flags ^ new->flags) & IRQF_TRIGGER_MASK) ||
 		    ((old->flags ^ new->flags) & IRQF_ONESHOT))
 			goto mismatch;