diff --git a/drivers/scsi/isci/host.h b/drivers/scsi/isci/host.h
index 8e8b463..9ab58e0 100644
--- a/drivers/scsi/isci/host.h
+++ b/drivers/scsi/isci/host.h
@@ -340,6 +340,11 @@
 	return dev->port->ha->lldd_ha;
 }
 
+static inline struct isci_host *idev_to_ihost(struct isci_remote_device *idev)
+{
+	return dev_to_ihost(idev->domain_dev);
+}
+
 /* we always use protocol engine group zero */
 #define ISCI_PEG 0