seg6_possible_end_dt_info
struct seg6_end_dt_info *info = seg6_possible_end_dt_info(slwt);
struct seg6_end_dt_info *info = seg6_possible_end_dt_info(slwt);
struct seg6_end_dt_info *info_a = seg6_possible_end_dt_info(a);
struct seg6_end_dt_info *info_b = seg6_possible_end_dt_info(b);