IEEE80211_HAS_ADDR4
has_l2pad = IEEE80211_HAS_ADDR4(wh) !=
if (IEEE80211_HAS_ADDR4(wh) == IEEE80211_QOS_HAS_SEQ(wh))
has_l2pad = IEEE80211_HAS_ADDR4(wh) !=
if(IEEE80211_HAS_ADDR4(wh) == IEEE80211_QOS_HAS_SEQ(wh))