VN_UNCONFIG
flags &= ~VN_UNCONFIG;
flags &= ~(VN_DISABLE|VN_UNCONFIG);
flags |= (VN_DISABLE|VN_UNCONFIG);
flags &= ~VN_UNCONFIG;
flags &= ~VN_UNCONFIG;
if ((flags & VN_UNCONFIG) == 0)
if (flags & VN_UNCONFIG) {