1 files changed, 29 insertions, 0 deletions

diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c
index 4fcbf634b548..acd9b61fbc07 100644
--- a/net/mac80211/tx.c
+++ b/net/mac80211/tx.c
@@ -1366,6 +1366,35 @@ static int invoke_tx_handlers(struct ieee80211_tx_data *tx)
         return 0;
 }
 
+bool ieee80211_tx_prepare_skb(struct ieee80211_hw *hw,
+                              struct ieee80211_vif *vif, struct sk_buff *skb,
+                              int band, struct ieee80211_sta **sta)
+{
+        struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
+        struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+        struct ieee80211_tx_data tx;
+
+        if (ieee80211_tx_prepare(sdata, &tx, skb) == TX_DROP)
+                return false;
+
+        info->band = band;
+        info->control.vif = vif;
+        info->hw_queue = vif->hw_queue[skb_get_queue_mapping(skb)];
+
+        if (invoke_tx_handlers(&tx))
+                return false;
+
+        if (sta) {
+                if (tx.sta)
+                        *sta = &tx.sta->sta;
+                else
+                        *sta = NULL;
+        }
+
+        return true;
+}
+EXPORT_SYMBOL(ieee80211_tx_prepare_skb);
+
 /*
  * Returns false if the frame couldn't be transmitted but was queued instead.
  */