1 files changed, 1 insertions, 0 deletions

diff --git a/drivers/s390/block/dasd_int.h b/drivers/s390/block/dasd_int.h
index 6010ecf76b4c..e9485559e22e 100644
--- a/drivers/s390/block/dasd_int.h
+++ b/drivers/s390/block/dasd_int.h
@@ -272,6 +272,7 @@ struct dasd_discipline {
         /* i/o control functions. */
         int (*fill_geometry) (struct dasd_device *, struct hd_geometry *);
         int (*fill_info) (struct dasd_device *, struct dasd_information2_t *);
+        int (*ioctl) (struct dasd_device *, unsigned int, void __user *);
 };
 
 extern struct dasd_discipline *dasd_diag_discipline_pointer;