ieee80211_encrypt_tx_skb
if (unicast_data && ieee80211_encrypt_tx_skb(skb) < 0) {
if (!unicast_data && ieee80211_encrypt_tx_skb(skb) < 0) {
int ieee80211_encrypt_tx_skb(struct sk_buff *skb);
EXPORT_SYMBOL_GPL(ieee80211_encrypt_tx_skb);