nhop_get_upper_family
int nhop_get_upper_family(const struct nhop_object *nh);
FIB_LOG_##_l(_l, nhop_get_fibnum(_nh), nhop_get_upper_family(_nh), \
nlattr_add_u32(nw, NHAF_FAMILY, nhop_get_upper_family(nh));
upper_family = nhop_get_upper_family(nh);