On Thu, Oct 25, 2018 at 06:55:41PM +0200, Felix Fietkau wrote: > + struct mt76_tx_cb *cb = mt76_tx_skb_cb(skb); > + u8 done = MT_TX_CB_DMA_DONE | MT_TX_CB_TXS_DONE; can be "const u8 done = ..." > +mt76_tx_status_skb_add(struct mt76_dev *dev, struct mt76_wcid *wcid, > + struct sk_buff *skb) > +{ > + struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb); > + struct mt76_tx_cb *cb = mt76_tx_skb_cb(skb); > + int pid; > + > + if (!wcid || !wcid->sta) > + return 0; Due to !wcid->sta check I can not associate with AP on MT7610U, because we use pid = 0 for assoc frames which are marked IEEE80211_TX_CTL_REQ_TX_STATUS . After removing it and leave just !wcid check, things work ok. Thanks Stanislaw