NFSMAKEDEV
if (nap->na_rdev != NFSMAKEDEV(j, k))
nap->na_rdev = NFSMAKEDEV(j, k);
nap->na_rdev = NFSMAKEDEV(
nva.na_rdev = NFSMAKEDEV(major, minor);
nva.na_rdev = NFSMAKEDEV(major, minor);