guid_is_null      710 drivers/hv/vmbus_drv.c 	for (; !guid_is_null(&id->guid); id++)
guid_is_null      253 drivers/nvdimm/btt_devs.c 	if (!guid_is_null((guid_t *)&super->parent_uuid))
guid_is_null       71 drivers/visorbus/visorbus_main.c 	if (!guid_is_null(expected_guid)) {
guid_is_null      145 drivers/visorbus/visorbus_main.c 	for (i = 0; !guid_is_null(&drv->channel_types[i].guid); i++)