2 files changed, 6 insertions, 0 deletions

diff --git a/include/scsi/scsi_device.h b/include/scsi/scsi_device.h
index 1f3a4c8044c0..9af48cbf0036 100644
--- a/include/scsi/scsi_device.h
+++ b/include/scsi/scsi_device.h
@@ -187,6 +187,7 @@ struct scsi_device_handler {
         void (*detach)(struct scsi_device *);
         int (*activate)(struct scsi_device *);
         int (*prep_fn)(struct scsi_device *, struct request *);
+        int (*set_params)(struct scsi_device *, const char *);
 };
 
 struct scsi_dh_data {
diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h
index 33efce20c26c..ff2407405b42 100644
--- a/include/scsi/scsi_dh.h
+++ b/include/scsi/scsi_dh.h
@@ -60,6 +60,7 @@ extern int scsi_dh_activate(struct request_queue *);
 extern int scsi_dh_handler_exist(const char *);
 extern int scsi_dh_attach(struct request_queue *, const char *);
 extern void scsi_dh_detach(struct request_queue *);
+extern int scsi_dh_set_params(struct request_queue *, const char *);
 #else
 static inline int scsi_dh_activate(struct request_queue *req)
 {
@@ -77,4 +78,8 @@ static inline void scsi_dh_detach(struct request_queue *q)
 {
         return;
 }
+static inline int scsi_dh_set_params(struct request_queue *req, const char *params)
+{
+        return -SCSI_DH_NOSYS;
+}
 #endif