F_UNUSED
&& ((f->f_type == F_UNUSED)
case F_UNUSED:
case F_UNUSED:
f->f_type = F_UNUSED;
f->f_type = F_UNUSED;
f->f_type = F_UNUSED;
f->f_type = F_UNUSED;
f->f_type = F_UNUSED;
f->f_type = F_UNUSED;
f->f_type = F_UNUSED;