package/mac80211/patches/570-ath9k_tx_stop_failure_debug.patch

   1 --- a/drivers/net/wireless/ath/ath9k/xmit.c
   2 +++ b/drivers/net/wireless/ath/ath9k/xmit.c
   3 @@ -1512,7 +1512,8 @@ bool ath_drain_all_txq(struct ath_softc
   4         struct ath_hw *ah = sc->sc_ah;
   5         struct ath_common *common = ath9k_hw_common(sc->sc_ah);
   6         struct ath_txq *txq;
   7 -       int i, npend = 0;
   8 +       int i;
   9 +       u32 npend = 0;
  10
  11         if (sc->sc_flags & SC_OP_INVALID)
  12                 return true;
  13 @@ -1524,11 +1525,12 @@ bool ath_drain_all_txq(struct ath_softc
  14                 if (!ATH_TXQ_SETUP(sc, i))
  15                         continue;
  16
  17 -               npend += ath9k_hw_numtxpending(ah, sc->tx.txq[i].axq_qnum);
  18 +               if (ath9k_hw_numtxpending(ah, sc->tx.txq[i].axq_qnum))
  19 +                       npend |= BIT(i);
  20         }
  21
  22         if (npend)
  23 -               ath_err(common, "Failed to stop TX DMA!\n");
  24 +               ath_err(common, "Failed to stop TX DMA, queues=%08x!\n", npend);
  25
  26         for (i = 0; i < ATH9K_NUM_TX_QUEUES; i++) {
  27                 if (!ATH_TXQ_SETUP(sc, i))