DRBD_NL_HISTORY_UUIDS_SIZE
s->history_uuids_len = nla_memcpy(s->history_uuids, nla, DRBD_NL_HISTORY_UUIDS_SIZE);
if (nla_put(skb, DRBD_A_DEVICE_STATISTICS_HISTORY_UUIDS, min_t(int, DRBD_NL_HISTORY_UUIDS_SIZE,
[DRBD_A_DEVICE_STATISTICS_HISTORY_UUIDS] = NLA_POLICY_MAX_LEN(DRBD_NL_HISTORY_UUIDS_SIZE),
char history_uuids[DRBD_NL_HISTORY_UUIDS_SIZE];