1 files changed, 4 insertions, 0 deletions

diff --git a/drivers/s390/cio/css.h b/drivers/s390/cio/css.h
index 251ebd7a7d3a..aa5ab5d4547c 100644
--- a/drivers/s390/cio/css.h
+++ b/drivers/s390/cio/css.h
@@ -115,6 +115,7 @@ struct ccw_device_private {
  * Currently, we only care about I/O subchannels (type 0), these
  * have a ccw_device connected to them.
  */
+struct subchannel;
 struct css_driver {
         unsigned int subchannel_type;
         struct device_driver drv;
@@ -122,6 +123,9 @@ struct css_driver {
         int (*notify)(struct device *, int);
         void (*verify)(struct device *);
         void (*termination)(struct device *);
+        int (*probe)(struct subchannel *);
+        int (*remove)(struct subchannel *);
+        void (*shutdown)(struct subchannel *);
 };
 
 /*