NL80211_ATTR_WIPHY_DYN_ACK
if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK])
if (info->attrs[NL80211_ATTR_WIPHY_DYN_ACK]) {
[NL80211_ATTR_WIPHY_DYN_ACK] = { .type = NLA_FLAG },