NL80211_ATTR_DURATION
!info->attrs[NL80211_ATTR_DURATION])
duration = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
if (info->attrs[NL80211_ATTR_DURATION]) {
params.wait = nla_get_u32(info->attrs[NL80211_ATTR_DURATION]);
nla_put_u32(msg, NL80211_ATTR_DURATION, duration))
[NL80211_ATTR_DURATION] = { .type = NLA_U32 },