diff --git a/include/linux/irq.h b/include/linux/irq.h
index f486c4d..1939d42 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -129,6 +129,7 @@
  *
  * @handle_irq:		highlevel irq-events handler [if NULL, __do_IRQ()]
  * @chip:		low level interrupt hardware access
+ * @msi_desc:		MSI descriptor
  * @handler_data:	per-IRQ data for the irq_chip methods
  * @chip_data:		platform-specific per-chip private data for the chip
  *			methods, to allow shared chip implementations