X-Git-Url: https://git.karo-electronics.de/?a=blobdiff_plain;f=include%2Fscsi%2Fscsi_dh.h;h=33efce20c26c937c08a89380dd1949b9eed60806;hb=b9836e08375d86834edcde45e3628e63db8b9624;hp=3ad2303d1a166ec69efb9350e63d8ec77444c565;hpb=49997d75152b3d23c53b0fa730599f2f74c92c65;p=karo-tx-linux.git

diff --git a/include/scsi/scsi_dh.h b/include/scsi/scsi_dh.h
index 3ad2303d1a16..33efce20c26c 100644
--- a/include/scsi/scsi_dh.h
+++ b/include/scsi/scsi_dh.h
@@ -32,6 +32,7 @@ enum {
 	 */
 	SCSI_DH_DEV_FAILED,	/* generic device error */
 	SCSI_DH_DEV_TEMP_BUSY,
+	SCSI_DH_DEV_UNSUPP,	/* device handler not supported */
 	SCSI_DH_DEVICE_MAX,	/* max device blkerr definition */
 
 	/*
@@ -57,6 +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)
 {
@@ -66,4 +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