NL80211_ATTR_DTIM_PERIOD
if (info->attrs[NL80211_ATTR_DTIM_PERIOD]) {
nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);
[NL80211_ATTR_DTIM_PERIOD] = { .type = NLA_U32 },
!info->attrs[NL80211_ATTR_DTIM_PERIOD] ||
nla_get_u32(info->attrs[NL80211_ATTR_DTIM_PERIOD]);