ipv6_saddr_score
struct ipv6_saddr_score *score,
struct ipv6_saddr_score *scores,
struct ipv6_saddr_score *score = &scores[1 - hiscore_idx], *hiscore = &scores[hiscore_idx];
struct ipv6_saddr_score *scores,
struct ipv6_saddr_score scores[2], *hiscore;