48     size_t param_size;  member
466 typedef int (*ioctl_fn)(struct dm_ioctl *param, size_t param_size);
468 static int remove_all(struct dm_ioctl *param, size_t param_size)  in remove_all()  argument
488 static void *get_result_buffer(struct dm_ioctl *param, size_t param_size,  in get_result_buffer()  argument
493 	if (param->data_start < param_size)  in get_result_buffer()
494 		*len = param_size - param->data_start;  in get_result_buffer()
501 static int list_devices(struct dm_ioctl *param, size_t param_size)  in list_devices()  argument
526 	nl = get_result_buffer(param, param_size, &len);  in list_devices()
592 static int list_versions(struct dm_ioctl *param, size_t param_size)  in list_versions()  argument
607 	vers = get_result_buffer(param, param_size, &len);  in list_versions()
614 	iter_info.param_size = param_size;  in list_versions()
734 static int dev_create(struct dm_ioctl *param, size_t param_size)  in dev_create()  argument
826 static int dev_remove(struct dm_ioctl *param, size_t param_size)  in dev_remove()  argument
891 static int dev_rename(struct dm_ioctl *param, size_t param_size)  in dev_rename()  argument
899 	    invalid_str(new_data, (void *) param + param_size) || !*new_data ||  in dev_rename()
921 static int dev_set_geometry(struct dm_ioctl *param, size_t param_size)  in dev_set_geometry()  argument
935 	    invalid_str(geostr, (void *) param + param_size)) {  in dev_set_geometry()
1070 static int dev_suspend(struct dm_ioctl *param, size_t param_size)  in dev_suspend()  argument
1082 static int dev_status(struct dm_ioctl *param, size_t param_size)  in dev_status()  argument
1100 			    struct dm_ioctl *param, size_t param_size)  in retrieve_status()  argument
1109 	outptr = outbuf = get_result_buffer(param, param_size, &len);  in retrieve_status()
1173 static int dev_wait(struct dm_ioctl *param, size_t param_size)  in dev_wait()  argument
1201 		retrieve_status(table, param, param_size);  in dev_wait()
1233 			  struct dm_ioctl *param, size_t param_size)  in populate_table()  argument
1239 	void *end = (void *) param + param_size;  in populate_table()
1270 static int table_load(struct dm_ioctl *param, size_t param_size)  in table_load()  argument
1288 	r = populate_table(t, param, param_size);  in table_load()
1356 static int table_clear(struct dm_ioctl *param, size_t param_size)  in table_clear()  argument
1394 			  struct dm_ioctl *param, size_t param_size)  in retrieve_deps()  argument
1402 	deps = get_result_buffer(param, param_size, &len);  in retrieve_deps()
1430 static int table_deps(struct dm_ioctl *param, size_t param_size)  in table_deps()  argument
1444 		retrieve_deps(table, param, param_size);  in table_deps()
1456 static int table_status(struct dm_ioctl *param, size_t param_size)  in table_status()  argument
1470 		retrieve_status(table, param, param_size);  in table_status()
1511 static int target_message(struct dm_ioctl *param, size_t param_size)  in target_message()  argument
1520 	char *result = get_result_buffer(param, param_size, &maxlen);  in target_message()
1528 	    invalid_str(tmsg->message, (void *) param + param_size)) {  in target_message()
1676 static void free_params(struct dm_ioctl *param, size_t param_size, int param_flags)  in free_params()  argument
1679 		memset(param, 0, param_size);  in free_params()