80 device_handler_match(struct scsi_device_handler *scsi_dh,  in device_handler_match()  argument
87 	if (scsi_dh && found_dh != scsi_dh)  in device_handler_match()
99 				  struct scsi_device_handler *scsi_dh)  in scsi_dh_handler_attach()  argument
104 		if (sdev->scsi_dh_data->scsi_dh != scsi_dh)  in scsi_dh_handler_attach()
111 	if (!try_module_get(scsi_dh->module))  in scsi_dh_handler_attach()
114 	d = scsi_dh->attach(sdev);  in scsi_dh_handler_attach()
117 			    scsi_dh->name, PTR_ERR(d));  in scsi_dh_handler_attach()
118 		module_put(scsi_dh->module);  in scsi_dh_handler_attach()
122 	d->scsi_dh = scsi_dh;  in scsi_dh_handler_attach()
136 	struct scsi_device_handler *scsi_dh = scsi_dh_data->scsi_dh;  in __detach_handler()  local
139 	scsi_dh->detach(sdev);  in __detach_handler()
145 	sdev_printk(KERN_NOTICE, sdev, "%s: Detached\n", scsi_dh->name);  in __detach_handler()
146 	module_put(scsi_dh->module);  in __detach_handler()
158 				   struct scsi_device_handler *scsi_dh)  in scsi_dh_handler_detach()  argument
163 	if (scsi_dh && scsi_dh != sdev->scsi_dh_data->scsi_dh)  in scsi_dh_handler_detach()
166 	if (!scsi_dh)  in scsi_dh_handler_detach()
167 		scsi_dh = sdev->scsi_dh_data->scsi_dh;  in scsi_dh_handler_detach()
169 	if (scsi_dh)  in scsi_dh_handler_detach()
181 	struct scsi_device_handler *scsi_dh;  in store_dh_state()  local
192 		if (!(scsi_dh = get_device_handler(buf)))  in store_dh_state()
194 		err = scsi_dh_handler_attach(sdev, scsi_dh);  in store_dh_state()
196 		scsi_dh = sdev->scsi_dh_data->scsi_dh;  in store_dh_state()
201 			scsi_dh_handler_detach(sdev, scsi_dh);  in store_dh_state()
207 			if (scsi_dh->activate)  in store_dh_state()
208 				err = scsi_dh->activate(sdev, NULL, NULL);  in store_dh_state()
225 	return snprintf(buf, 20, "%s\n", sdev->scsi_dh_data->scsi_dh->name);  in show_dh_state()
303 	struct scsi_device_handler *scsi_dh = data;  in scsi_dh_notifier_add()  local
314 	if (device_handler_match(scsi_dh, sdev))  in scsi_dh_notifier_add()
315 		scsi_dh_handler_attach(sdev, scsi_dh);  in scsi_dh_notifier_add()
327 	struct scsi_device_handler *scsi_dh = data;  in scsi_dh_notifier_remove()  local
338 	scsi_dh_handler_detach(sdev, scsi_dh);  in scsi_dh_notifier_remove()
352 int scsi_register_device_handler(struct scsi_device_handler *scsi_dh)  in scsi_register_device_handler()  argument
355 	if (get_device_handler(scsi_dh->name))  in scsi_register_device_handler()
358 	if (!scsi_dh->attach || !scsi_dh->detach)  in scsi_register_device_handler()
362 	list_add(&scsi_dh->list, &scsi_dh_list);  in scsi_register_device_handler()
365 	bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh, scsi_dh_notifier_add);  in scsi_register_device_handler()
366 	printk(KERN_INFO "%s: device handler registered\n", scsi_dh->name);  in scsi_register_device_handler()
379 int scsi_unregister_device_handler(struct scsi_device_handler *scsi_dh)  in scsi_unregister_device_handler()  argument
382 	if (!get_device_handler(scsi_dh->name))  in scsi_unregister_device_handler()
385 	bus_for_each_dev(&scsi_bus_type, NULL, scsi_dh,  in scsi_unregister_device_handler()
389 	list_del(&scsi_dh->list);  in scsi_unregister_device_handler()
391 	printk(KERN_INFO "%s: device handler unregistered\n", scsi_dh->name);  in scsi_unregister_device_handler()
415 	struct scsi_device_handler *scsi_dh = NULL;  in scsi_dh_activate()  local
429 		scsi_dh = sdev->scsi_dh_data->scsi_dh;  in scsi_dh_activate()
431 	if (!scsi_dh || !dev ||  in scsi_dh_activate()
445 	if (scsi_dh->activate)  in scsi_dh_activate()
446 		err = scsi_dh->activate(sdev, fn, data);  in scsi_dh_activate()
468 	struct scsi_device_handler *scsi_dh = NULL;  in scsi_dh_set_params()  local
473 		scsi_dh = sdev->scsi_dh_data->scsi_dh;  in scsi_dh_set_params()
474 	if (scsi_dh && scsi_dh->set_params && get_device(&sdev->sdev_gendev))  in scsi_dh_set_params()
480 	err = scsi_dh->set_params(sdev, params);  in scsi_dh_set_params()
507 	struct scsi_device_handler *scsi_dh;  in scsi_dh_attach()  local
510 	scsi_dh = get_device_handler(name);  in scsi_dh_attach()
511 	if (!scsi_dh)  in scsi_dh_attach()
521 		err = scsi_dh_handler_attach(sdev, scsi_dh);  in scsi_dh_attach()
541 	struct scsi_device_handler *scsi_dh = NULL;  in scsi_dh_detach()  local
553 		scsi_dh = sdev->scsi_dh_data->scsi_dh;  in scsi_dh_detach()
554 		scsi_dh_handler_detach(sdev, scsi_dh);  in scsi_dh_detach()
585 		handler_name = kstrdup(sdev->scsi_dh_data->scsi_dh->name, gfp);  in scsi_dh_attached_handler_name()