NL80211_TXQ_ATTR_CWMAX
[NL80211_TXQ_ATTR_CWMAX] = { .type = NLA_U16 },
!tb[NL80211_TXQ_ATTR_CWMIN] || !tb[NL80211_TXQ_ATTR_CWMAX] ||
txq_params->cwmax = nla_get_u16(tb[NL80211_TXQ_ATTR_CWMAX]);