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-rw-r--r--include/scsi/scsi_dh.h10
1 files changed, 10 insertions, 0 deletions
diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h
index e15e2aade69c..33efce20c26c 100644
--- a/include/scsi/scsi_dh.h
+++ b/include/scsi/scsi_dh.h
@@ -58,6 +58,8 @@ enum {
#if defined(CONFIG_SCSI_DH) || defined(CONFIG_SCSI_DH_MODULE)
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 *);
#else
static inline int scsi_dh_activate(struct request_queue *req)
{
@@ -67,4 +69,12 @@ static inline int scsi_dh_handler_exist(const char *name)
{
return 0;
}
+static inline int scsi_dh_attach(struct request_queue *req, const char *name)
+{
+ return SCSI_DH_NOSYS;
+}
+static inline void scsi_dh_detach(struct request_queue *q)
+{
+ return;
+}
#endif