[SCSI] tgt: move tsk_mgmt_response callback to transport class

This moves tsk_mgmt_response callback in struct scsi_host_template to
struct scsi_transport_template since struct scsi_transport_template is
more suitable for the task management stuff.

Signed-off-by: FUJITA Tomonori <[e-mail]>
Signed-off-by: Mike Christie <[e-mail]>
Signed-off-by: James Bottomley <[e-mail]>

drivers/scsi/scsi_tgt_lib.c

···
 		goto done;
 	}
 
-	err = shost->hostt->tsk_mgmt_response(shost, itn_id, mid, result);
+	err = shost->transportt->tsk_mgmt_response(shost, itn_id, mid, result);
 done:
 	scsi_host_put(shost);
 	return err;

drivers/scsi/scsi_transport_srp.c

···
 }
 EXPORT_SYMBOL_GPL(srp_remove_host);
 
-static int srp_it_nexus_response(struct Scsi_Host *shost, u64 id, int result)
+static int srp_tsk_mgmt_response(struct Scsi_Host *shost, u64 nexus, u64 tm_id,
+				 int result)
 {
 	struct srp_internal *i = to_srp_internal(shost->transportt);
-	return i->f->it_nexus_response(shost, id, result);
+	return i->f->tsk_mgmt_response(shost, nexus, tm_id, result);
+}
+
+static int srp_it_nexus_response(struct Scsi_Host *shost, u64 nexus, int result)
+{
+	struct srp_internal *i = to_srp_internal(shost->transportt);
+	return i->f->it_nexus_response(shost, nexus, result);
 }
 
 /**
···
 	if (!i)
 		return NULL;
 
+	i->t.tsk_mgmt_response = srp_tsk_mgmt_response;
 	i->t.it_nexus_response = srp_it_nexus_response;
 
 	i->t.host_size = sizeof(struct srp_host_attrs);

include/scsi/scsi_host.h

···
 	int (* transfer_response)(struct scsi_cmnd *,
 				  void (*done)(struct scsi_cmnd *));
 
-	/* Used as callback for the completion of task management request. */
-	int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64 mid, int result);
-
 	/*
 	 * This is an error handling strategy routine.  You don't need to
 	 * define one of these if you don't want to - there is a default

include/scsi/scsi_transport.h

···
 	 * for target drivers.
 	 */
 	int (* it_nexus_response)(struct Scsi_Host *, u64, int);
+
+	/*
+	 * Used as callback for the completion of task management
+	 * request for target drivers.
+	 */
+	int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int);
 };
 
 #define transport_class_to_shost(tc) \

include/scsi/scsi_transport_srp.h

···
 
 struct srp_function_template {
 	/* for target drivers */
+	int (* tsk_mgmt_response)(struct Scsi_Host *, u64, u64, int);
 	int (* it_nexus_response)(struct Scsi_Host *, u64, int);
 };