PVCLOCK_CDEVNAME
(fd = _open("/dev/" PVCLOCK_CDEVNAME, O_RDONLY | O_CLOEXEC)) < 0)
err = make_dev_s(&mda, &pvc->cdev, PVCLOCK_CDEVNAME);
PVCLOCK_CDEVNAME, err);
.d_name = PVCLOCK_CDEVNAME,