ath9k: add a temporary uci option for setting the channel bandwidth
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index 782f7d7..adf59f6 100644 (file)
@@ -1,694 +1,6 @@
---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -603,7 +603,6 @@ struct ath_hw_ops {
-                                    int power_off);
-       void (*rx_enable)(struct ath_hw *ah);
-       void (*set_desc_link)(void *ds, u32 link);
--      void (*get_desc_link)(void *ds, u32 **link);
-       bool (*calibrate)(struct ath_hw *ah,
-                         struct ath9k_channel *chan,
-                         u8 rxchainmask,
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -62,8 +62,6 @@ static bool ath9k_has_pending_frames(str
-       if (txq->axq_depth || !list_empty(&txq->axq_acq))
-               pending = true;
--      else if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA)
--              pending = !list_empty(&txq->txq_fifo_pending);
-       spin_unlock_bh(&txq->axq_lock);
-       return pending;
---- a/drivers/net/wireless/ath/ath9k/ar9002_mac.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9002_mac.c
-@@ -28,11 +28,6 @@ static void ar9002_hw_set_desc_link(void
-       ((struct ath_desc*) ds)->ds_link = ds_link;
- }
--static void ar9002_hw_get_desc_link(void *ds, u32 **ds_link)
--{
--      *ds_link = &((struct ath_desc *)ds)->ds_link;
--}
--
- static bool ar9002_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
- {
-       u32 isr = 0;
-@@ -437,7 +432,6 @@ void ar9002_hw_attach_mac_ops(struct ath
-       ops->rx_enable = ar9002_hw_rx_enable;
-       ops->set_desc_link = ar9002_hw_set_desc_link;
--      ops->get_desc_link = ar9002_hw_get_desc_link;
-       ops->get_isr = ar9002_hw_get_isr;
-       ops->fill_txdesc = ar9002_hw_fill_txdesc;
-       ops->proc_txdesc = ar9002_hw_proc_txdesc;
---- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
-@@ -43,13 +43,6 @@ static void ar9003_hw_set_desc_link(void
-       ads->ctl10 |= ar9003_calc_ptr_chksum(ads);
- }
--static void ar9003_hw_get_desc_link(void *ds, u32 **ds_link)
--{
--      struct ar9003_txc *ads = ds;
--
--      *ds_link = &ads->link;
--}
--
- static bool ar9003_hw_get_isr(struct ath_hw *ah, enum ath9k_int *masked)
- {
-       u32 isr = 0;
-@@ -498,7 +491,6 @@ void ar9003_hw_attach_mac_ops(struct ath
-       ops->rx_enable = ar9003_hw_rx_enable;
-       ops->set_desc_link = ar9003_hw_set_desc_link;
--      ops->get_desc_link = ar9003_hw_get_desc_link;
-       ops->get_isr = ar9003_hw_get_isr;
-       ops->fill_txdesc = ar9003_hw_fill_txdesc;
-       ops->proc_txdesc = ar9003_hw_proc_txdesc;
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -179,7 +179,7 @@ enum ATH_AGGR_STATUS {
- struct ath_txq {
-       int mac80211_qnum; /* mac80211 queue number, -1 means not mac80211 Q */
-       u32 axq_qnum; /* ath9k hardware queue number */
--      u32 *axq_link;
-+      void *axq_link;
-       struct list_head axq_q;
-       spinlock_t axq_lock;
-       u32 axq_depth;
-@@ -188,7 +188,6 @@ struct ath_txq {
-       bool axq_tx_inprogress;
-       struct list_head axq_acq;
-       struct list_head txq_fifo[ATH_TXFIFO_DEPTH];
--      struct list_head txq_fifo_pending;
-       u8 txq_headidx;
-       u8 txq_tailidx;
-       int pending_frames;
---- a/drivers/net/wireless/ath/ath9k/debug.c
-+++ b/drivers/net/wireless/ath/ath9k/debug.c
-@@ -550,6 +550,7 @@ static ssize_t read_file_xmit(struct fil
-       PR("MPDUs Queued:    ", queued);
-       PR("MPDUs Completed: ", completed);
-+      PR("MPDUs XRetried:  ", xretries);
-       PR("Aggregates:      ", a_aggr);
-       PR("AMPDUs Queued HW:", a_queued_hw);
-       PR("AMPDUs Queued SW:", a_queued_sw);
-@@ -587,7 +588,6 @@ static ssize_t read_file_xmit(struct fil
-       PRQLE("axq_q empty:       ", axq_q);
-       PRQLE("axq_acq empty:     ", axq_acq);
--      PRQLE("txq_fifo_pending:  ", txq_fifo_pending);
-       for (i = 0; i < ATH_TXFIFO_DEPTH; i++) {
-               snprintf(tmp, sizeof(tmp) - 1, "txq_fifo[%i] empty: ", i);
-               PRQLE(tmp, txq_fifo[i]);
-@@ -807,7 +807,10 @@ void ath_debug_stat_tx(struct ath_softc 
-               else
-                       TX_STAT_INC(qnum, a_completed);
-       } else {
--              TX_STAT_INC(qnum, completed);
-+              if (bf_isxretried(bf))
-+                      TX_STAT_INC(qnum, xretries);
-+              else
-+                      TX_STAT_INC(qnum, completed);
-       }
-       if (ts->ts_status & ATH9K_TXERR_FIFO)
---- a/drivers/net/wireless/ath/ath9k/hw-ops.h
-+++ b/drivers/net/wireless/ath/ath9k/hw-ops.h
-@@ -39,11 +39,6 @@ static inline void ath9k_hw_set_desc_lin
-       ath9k_hw_ops(ah)->set_desc_link(ds, link);
- }
--static inline void ath9k_hw_get_desc_link(struct ath_hw *ah, void *ds,
--                                        u32 **link)
--{
--      ath9k_hw_ops(ah)->get_desc_link(ds, link);
--}
- static inline bool ath9k_hw_calibrate(struct ath_hw *ah,
-                                     struct ath9k_channel *chan,
-                                     u8 rxchainmask,
---- a/drivers/net/wireless/ath/ath9k/xmit.c
-+++ b/drivers/net/wireless/ath/ath9k/xmit.c
-@@ -53,7 +53,7 @@ static void ath_tx_complete_buf(struct a
-                               struct ath_txq *txq, struct list_head *bf_q,
-                               struct ath_tx_status *ts, int txok, int sendbar);
- static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
--                           struct list_head *head);
-+                           struct list_head *head, bool internal);
- static void ath_buf_set_rate(struct ath_softc *sc, struct ath_buf *bf, int len);
- static void ath_tx_rc_status(struct ath_softc *sc, struct ath_buf *bf,
-                            struct ath_tx_status *ts, int nframes, int nbad,
-@@ -377,8 +377,7 @@ static void ath_tx_complete_aggr(struct 
-                       bf_next = bf->bf_next;
-                       bf->bf_state.bf_type |= BUF_XRETRY;
--                      if ((sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) ||
--                          !bf->bf_stale || bf_next != NULL)
-+                      if (!bf->bf_stale || bf_next != NULL)
-                               list_move_tail(&bf->list, &bf_head);
-                       ath_tx_rc_status(sc, bf, ts, 1, 1, 0, false);
-@@ -463,20 +462,14 @@ static void ath_tx_complete_aggr(struct 
-                       }
-               }
--              if (!(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) &&
--                  bf_next == NULL) {
--                      /*
--                       * Make sure the last desc is reclaimed if it
--                       * not a holding desc.
--                       */
--                      if (!bf_last->bf_stale)
--                              list_move_tail(&bf->list, &bf_head);
--                      else
--                              INIT_LIST_HEAD(&bf_head);
--              } else {
--                      BUG_ON(list_empty(bf_q));
-+              /*
-+               * Make sure the last desc is reclaimed if it
-+               * not a holding desc.
-+               */
-+              if (!bf_last->bf_stale || bf_next != NULL)
-                       list_move_tail(&bf->list, &bf_head);
--              }
-+              else
-+                      INIT_LIST_HEAD(&bf_head);
-               if (!txpending || (tid->state & AGGR_CLEANUP)) {
-                       /*
-@@ -837,7 +830,7 @@ static void ath_tx_sched_aggr(struct ath
-                       bf->bf_state.bf_type &= ~BUF_AGGR;
-                       ath9k_hw_clr11n_aggr(sc->sc_ah, bf->bf_desc);
-                       ath_buf_set_rate(sc, bf, fi->framelen);
--                      ath_tx_txqaddbuf(sc, txq, &bf_q);
-+                      ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-                       continue;
-               }
-@@ -849,7 +842,7 @@ static void ath_tx_sched_aggr(struct ath
-               /* anchor last desc of aggregate */
-               ath9k_hw_set11n_aggr_last(sc->sc_ah, bf->bf_lastbf->bf_desc);
--              ath_tx_txqaddbuf(sc, txq, &bf_q);
-+              ath_tx_txqaddbuf(sc, txq, &bf_q, false);
-               TX_STAT_INC(txq->axq_qnum, a_aggr);
-       } while (txq->axq_ampdu_depth < ATH_AGGR_MIN_QDEPTH &&
-@@ -1085,7 +1078,6 @@ struct ath_txq *ath_txq_setup(struct ath
-               txq->txq_headidx = txq->txq_tailidx = 0;
-               for (i = 0; i < ATH_TXFIFO_DEPTH; i++)
-                       INIT_LIST_HEAD(&txq->txq_fifo[i]);
--              INIT_LIST_HEAD(&txq->txq_fifo_pending);
-       }
-       return &sc->tx.txq[axq_qnum];
- }
-@@ -1155,13 +1147,8 @@ static bool bf_is_ampdu_not_probing(stru
-     return bf_isampdu(bf) && !(info->flags & IEEE80211_TX_CTL_RATE_CTRL_PROBE);
- }
--/*
-- * Drain a given TX queue (could be Beacon or Data)
-- *
-- * This assumes output has been stopped and
-- * we do not need to block ath_tx_tasklet.
-- */
--void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
-+static void ath_drain_txq_list(struct ath_softc *sc, struct ath_txq *txq,
-+                             struct list_head *list, bool retry_tx)
- {
-       struct ath_buf *bf, *lastbf;
-       struct list_head bf_head;
-@@ -1170,93 +1157,63 @@ void ath_draintxq(struct ath_softc *sc, 
-       memset(&ts, 0, sizeof(ts));
-       INIT_LIST_HEAD(&bf_head);
--      for (;;) {
--              spin_lock_bh(&txq->axq_lock);
-+      while (!list_empty(list)) {
-+              bf = list_first_entry(list, struct ath_buf, list);
--              if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--                      if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
--                              txq->txq_headidx = txq->txq_tailidx = 0;
--                              spin_unlock_bh(&txq->axq_lock);
--                              break;
--                      } else {
--                              bf = list_first_entry(&txq->txq_fifo[txq->txq_tailidx],
--                                                    struct ath_buf, list);
--                      }
--              } else {
--                      if (list_empty(&txq->axq_q)) {
--                              txq->axq_link = NULL;
--                              spin_unlock_bh(&txq->axq_lock);
--                              break;
--                      }
--                      bf = list_first_entry(&txq->axq_q, struct ath_buf,
--                                            list);
--
--                      if (bf->bf_stale) {
--                              list_del(&bf->list);
--                              spin_unlock_bh(&txq->axq_lock);
-+              if (bf->bf_stale) {
-+                      list_del(&bf->list);
--                              ath_tx_return_buffer(sc, bf);
--                              continue;
--                      }
-+                      ath_tx_return_buffer(sc, bf);
-+                      continue;
-               }
-               lastbf = bf->bf_lastbf;
--
--              if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--                      list_cut_position(&bf_head,
--                                        &txq->txq_fifo[txq->txq_tailidx],
--                                        &lastbf->list);
--                      INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
--              } else {
--                      /* remove ath_buf's of the same mpdu from txq */
--                      list_cut_position(&bf_head, &txq->axq_q, &lastbf->list);
--              }
-+              list_cut_position(&bf_head, list, &lastbf->list);
-               txq->axq_depth--;
-               if (bf_is_ampdu_not_probing(bf))
-                       txq->axq_ampdu_depth--;
--              spin_unlock_bh(&txq->axq_lock);
-+              spin_unlock_bh(&txq->axq_lock);
-               if (bf_isampdu(bf))
-                       ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, 0,
-                                            retry_tx);
-               else
-                       ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, 0, 0);
-+              spin_lock_bh(&txq->axq_lock);
-       }
-+}
-+/*
-+ * Drain a given TX queue (could be Beacon or Data)
-+ *
-+ * This assumes output has been stopped and
-+ * we do not need to block ath_tx_tasklet.
-+ */
-+void ath_draintxq(struct ath_softc *sc, struct ath_txq *txq, bool retry_tx)
-+{
-       spin_lock_bh(&txq->axq_lock);
--      txq->axq_tx_inprogress = false;
--      spin_unlock_bh(&txq->axq_lock);
--
-       if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--              spin_lock_bh(&txq->axq_lock);
--              while (!list_empty(&txq->txq_fifo_pending)) {
--                      bf = list_first_entry(&txq->txq_fifo_pending,
--                                            struct ath_buf, list);
--                      list_cut_position(&bf_head,
--                                        &txq->txq_fifo_pending,
--                                        &bf->bf_lastbf->list);
--                      spin_unlock_bh(&txq->axq_lock);
-+              int idx = txq->txq_tailidx;
--                      if (bf_isampdu(bf))
--                              ath_tx_complete_aggr(sc, txq, bf, &bf_head,
--                                                   &ts, 0, retry_tx);
--                      else
--                              ath_tx_complete_buf(sc, bf, txq, &bf_head,
--                                                  &ts, 0, 0);
--                      spin_lock_bh(&txq->axq_lock);
-+              while (!list_empty(&txq->txq_fifo[idx])) {
-+                      ath_drain_txq_list(sc, txq, &txq->txq_fifo[idx],
-+                                         retry_tx);
-+
-+                      INCR(idx, ATH_TXFIFO_DEPTH);
-               }
--              spin_unlock_bh(&txq->axq_lock);
-+              txq->txq_tailidx = idx;
-       }
-+      txq->axq_link = NULL;
-+      txq->axq_tx_inprogress = false;
-+      ath_drain_txq_list(sc, txq, &txq->axq_q, retry_tx);
-+
-       /* flush any pending frames if aggregation is enabled */
--      if (sc->sc_flags & SC_OP_TXAGGR) {
--              if (!retry_tx) {
--                      spin_lock_bh(&txq->axq_lock);
--                      ath_txq_drain_pending_buffers(sc, txq);
--                      spin_unlock_bh(&txq->axq_lock);
--              }
--      }
-+      if ((sc->sc_flags & SC_OP_TXAGGR) && !retry_tx)
-+              ath_txq_drain_pending_buffers(sc, txq);
-+
-+      spin_unlock_bh(&txq->axq_lock);
- }
- bool ath_drain_all_txq(struct ath_softc *sc, bool retry_tx)
-@@ -1370,11 +1327,13 @@ void ath_txq_schedule(struct ath_softc *
-  * assume the descriptors are already chained together by caller.
-  */
- static void ath_tx_txqaddbuf(struct ath_softc *sc, struct ath_txq *txq,
--                           struct list_head *head)
-+                           struct list_head *head, bool internal)
- {
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath_common *common = ath9k_hw_common(ah);
--      struct ath_buf *bf;
-+      struct ath_buf *bf, *bf_last;
-+      bool puttxbuf = false;
-+      bool edma;
-       /*
-        * Insert the frame on the outbound list and
-@@ -1384,51 +1343,49 @@ static void ath_tx_txqaddbuf(struct ath_
-       if (list_empty(head))
-               return;
-+      edma = !!(ah->caps.hw_caps & ATH9K_HW_CAP_EDMA);
-       bf = list_first_entry(head, struct ath_buf, list);
-+      bf_last = list_entry(head->prev, struct ath_buf, list);
-       ath_dbg(common, ATH_DBG_QUEUE,
-               "qnum: %d, txq depth: %d\n", txq->axq_qnum, txq->axq_depth);
--      if (sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
--              if (txq->axq_depth >= ATH_TXFIFO_DEPTH) {
--                      list_splice_tail_init(head, &txq->txq_fifo_pending);
--                      return;
--              }
--              if (!list_empty(&txq->txq_fifo[txq->txq_headidx]))
--                      ath_dbg(common, ATH_DBG_XMIT,
--                              "Initializing tx fifo %d which is non-empty\n",
--                              txq->txq_headidx);
--              INIT_LIST_HEAD(&txq->txq_fifo[txq->txq_headidx]);
--              list_splice_init(head, &txq->txq_fifo[txq->txq_headidx]);
-+      if (edma && list_empty(&txq->txq_fifo[txq->txq_headidx])) {
-+              list_splice_tail_init(head, &txq->txq_fifo[txq->txq_headidx]);
-               INCR(txq->txq_headidx, ATH_TXFIFO_DEPTH);
--              TX_STAT_INC(txq->axq_qnum, puttxbuf);
--              ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
--              ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
--                      txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
-+              puttxbuf = true;
-       } else {
-               list_splice_tail_init(head, &txq->axq_q);
--              if (txq->axq_link == NULL) {
--                      TX_STAT_INC(txq->axq_qnum, puttxbuf);
--                      ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
--                      ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
--                              txq->axq_qnum, ito64(bf->bf_daddr),
--                              bf->bf_desc);
--              } else {
--                      *txq->axq_link = bf->bf_daddr;
-+              if (txq->axq_link) {
-+                      ath9k_hw_set_desc_link(ah, txq->axq_link, bf->bf_daddr);
-                       ath_dbg(common, ATH_DBG_XMIT,
-                               "link[%u] (%p)=%llx (%p)\n",
-                               txq->axq_qnum, txq->axq_link,
-                               ito64(bf->bf_daddr), bf->bf_desc);
--              }
--              ath9k_hw_get_desc_link(ah, bf->bf_lastbf->bf_desc,
--                                     &txq->axq_link);
-+              } else if (!edma)
-+                      puttxbuf = true;
-+
-+              txq->axq_link = bf_last->bf_desc;
-+      }
-+
-+      if (puttxbuf) {
-+              TX_STAT_INC(txq->axq_qnum, puttxbuf);
-+              ath9k_hw_puttxbuf(ah, txq->axq_qnum, bf->bf_daddr);
-+              ath_dbg(common, ATH_DBG_XMIT, "TXDP[%u] = %llx (%p)\n",
-+                      txq->axq_qnum, ito64(bf->bf_daddr), bf->bf_desc);
-+      }
-+
-+      if (!edma) {
-               TX_STAT_INC(txq->axq_qnum, txstart);
-               ath9k_hw_txstart(ah, txq->axq_qnum);
-       }
--      txq->axq_depth++;
--      if (bf_is_ampdu_not_probing(bf))
--              txq->axq_ampdu_depth++;
-+
-+      if (!internal) {
-+              txq->axq_depth++;
-+              if (bf_is_ampdu_not_probing(bf))
-+                      txq->axq_ampdu_depth++;
-+      }
- }
- static void ath_tx_send_ampdu(struct ath_softc *sc, struct ath_atx_tid *tid,
-@@ -1470,7 +1427,7 @@ static void ath_tx_send_ampdu(struct ath
-       TX_STAT_INC(txctl->txq->axq_qnum, a_queued_hw);
-       bf->bf_lastbf = bf;
-       ath_buf_set_rate(sc, bf, fi->framelen);
--      ath_tx_txqaddbuf(sc, txctl->txq, &bf_head);
-+      ath_tx_txqaddbuf(sc, txctl->txq, &bf_head, false);
- }
- static void ath_tx_send_normal(struct ath_softc *sc, struct ath_txq *txq,
-@@ -1490,7 +1447,7 @@ static void ath_tx_send_normal(struct at
-       bf->bf_lastbf = bf;
-       fi = get_frame_info(bf->bf_mpdu);
-       ath_buf_set_rate(sc, bf, fi->framelen);
--      ath_tx_txqaddbuf(sc, txq, bf_head);
-+      ath_tx_txqaddbuf(sc, txq, bf_head, false);
-       TX_STAT_INC(txq->axq_qnum, queued);
- }
-@@ -2077,6 +2034,38 @@ static void ath_tx_rc_status(struct ath_
-       tx_info->status.rates[tx_rateindex].count = ts->ts_longretry + 1;
- }
-+static void ath_tx_process_buffer(struct ath_softc *sc, struct ath_txq *txq,
-+                                struct ath_tx_status *ts, struct ath_buf *bf,
-+                                struct list_head *bf_head)
-+{
-+      int txok;
-+
-+      txq->axq_depth--;
-+      txok = !(ts->ts_status & ATH9K_TXERR_MASK);
-+      txq->axq_tx_inprogress = false;
-+      if (bf_is_ampdu_not_probing(bf))
-+              txq->axq_ampdu_depth--;
-+
-+      spin_unlock_bh(&txq->axq_lock);
-+
-+      if (!bf_isampdu(bf)) {
-+              /*
-+               * This frame is sent out as a single frame.
-+               * Use hardware retry status for this frame.
-+               */
-+              if (ts->ts_status & ATH9K_TXERR_XRETRY)
-+                      bf->bf_state.bf_type |= BUF_XRETRY;
-+              ath_tx_rc_status(sc, bf, ts, 1, txok ? 0 : 1, txok, true);
-+              ath_tx_complete_buf(sc, bf, txq, bf_head, ts, txok, 0);
-+      } else
-+              ath_tx_complete_aggr(sc, txq, bf, bf_head, ts, txok, true);
-+
-+      spin_lock_bh(&txq->axq_lock);
-+
-+      if (sc->sc_flags & SC_OP_TXAGGR)
-+              ath_txq_schedule(sc, txq);
-+}
-+
- static void ath_tx_processq(struct ath_softc *sc, struct ath_txq *txq)
- {
-       struct ath_hw *ah = sc->sc_ah;
-@@ -2085,20 +2074,18 @@ static void ath_tx_processq(struct ath_s
-       struct list_head bf_head;
-       struct ath_desc *ds;
-       struct ath_tx_status ts;
--      int txok;
-       int status;
-       ath_dbg(common, ATH_DBG_QUEUE, "tx queue %d (%x), link %p\n",
-               txq->axq_qnum, ath9k_hw_gettxbuf(sc->sc_ah, txq->axq_qnum),
-               txq->axq_link);
-+      spin_lock_bh(&txq->axq_lock);
-       for (;;) {
--              spin_lock_bh(&txq->axq_lock);
-               if (list_empty(&txq->axq_q)) {
-                       txq->axq_link = NULL;
-                       if (sc->sc_flags & SC_OP_TXAGGR)
-                               ath_txq_schedule(sc, txq);
--                      spin_unlock_bh(&txq->axq_lock);
-                       break;
-               }
-               bf = list_first_entry(&txq->axq_q, struct ath_buf, list);
-@@ -2114,13 +2101,11 @@ static void ath_tx_processq(struct ath_s
-               bf_held = NULL;
-               if (bf->bf_stale) {
-                       bf_held = bf;
--                      if (list_is_last(&bf_held->list, &txq->axq_q)) {
--                              spin_unlock_bh(&txq->axq_lock);
-+                      if (list_is_last(&bf_held->list, &txq->axq_q))
-                               break;
--                      } else {
--                              bf = list_entry(bf_held->list.next,
--                                              struct ath_buf, list);
--                      }
-+
-+                      bf = list_entry(bf_held->list.next, struct ath_buf,
-+                                      list);
-               }
-               lastbf = bf->bf_lastbf;
-@@ -2128,10 +2113,9 @@ static void ath_tx_processq(struct ath_s
-               memset(&ts, 0, sizeof(ts));
-               status = ath9k_hw_txprocdesc(ah, ds, &ts);
--              if (status == -EINPROGRESS) {
--                      spin_unlock_bh(&txq->axq_lock);
-+              if (status == -EINPROGRESS)
-                       break;
--              }
-+
-               TX_STAT_INC(txq->axq_qnum, txprocdesc);
-               /*
-@@ -2145,42 +2129,14 @@ static void ath_tx_processq(struct ath_s
-                       list_cut_position(&bf_head,
-                               &txq->axq_q, lastbf->list.prev);
--              txq->axq_depth--;
--              txok = !(ts.ts_status & ATH9K_TXERR_MASK);
--              txq->axq_tx_inprogress = false;
--              if (bf_held)
-+              if (bf_held) {
-                       list_del(&bf_held->list);
--
--              if (bf_is_ampdu_not_probing(bf))
--                      txq->axq_ampdu_depth--;
--
--              spin_unlock_bh(&txq->axq_lock);
--
--              if (bf_held)
-                       ath_tx_return_buffer(sc, bf_held);
--
--              if (!bf_isampdu(bf)) {
--                      /*
--                       * This frame is sent out as a single frame.
--                       * Use hardware retry status for this frame.
--                       */
--                      if (ts.ts_status & ATH9K_TXERR_XRETRY)
--                              bf->bf_state.bf_type |= BUF_XRETRY;
--                      ath_tx_rc_status(sc, bf, &ts, 1, txok ? 0 : 1, txok, true);
-               }
--              if (bf_isampdu(bf))
--                      ath_tx_complete_aggr(sc, txq, bf, &bf_head, &ts, txok,
--                                           true);
--              else
--                      ath_tx_complete_buf(sc, bf, txq, &bf_head, &ts, txok, 0);
--
--              spin_lock_bh(&txq->axq_lock);
--
--              if (sc->sc_flags & SC_OP_TXAGGR)
--                      ath_txq_schedule(sc, txq);
--              spin_unlock_bh(&txq->axq_lock);
-+              ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
-       }
-+      spin_unlock_bh(&txq->axq_lock);
- }
- static void ath_tx_complete_poll_work(struct work_struct *work)
-@@ -2237,17 +2193,16 @@ void ath_tx_tasklet(struct ath_softc *sc
- void ath_tx_edma_tasklet(struct ath_softc *sc)
- {
--      struct ath_tx_status txs;
-+      struct ath_tx_status ts;
-       struct ath_common *common = ath9k_hw_common(sc->sc_ah);
-       struct ath_hw *ah = sc->sc_ah;
-       struct ath_txq *txq;
-       struct ath_buf *bf, *lastbf;
-       struct list_head bf_head;
-       int status;
--      int txok;
-       for (;;) {
--              status = ath9k_hw_txprocdesc(ah, NULL, (void *)&txs);
-+              status = ath9k_hw_txprocdesc(ah, NULL, (void *)&ts);
-               if (status == -EINPROGRESS)
-                       break;
-               if (status == -EIO) {
-@@ -2257,12 +2212,13 @@ void ath_tx_edma_tasklet(struct ath_soft
-               }
-               /* Skip beacon completions */
--              if (txs.qid == sc->beacon.beaconq)
-+              if (ts.qid == sc->beacon.beaconq)
-                       continue;
--              txq = &sc->tx.txq[txs.qid];
-+              txq = &sc->tx.txq[ts.qid];
-               spin_lock_bh(&txq->axq_lock);
-+
-               if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-                       spin_unlock_bh(&txq->axq_lock);
-                       return;
-@@ -2275,41 +2231,21 @@ void ath_tx_edma_tasklet(struct ath_soft
-               INIT_LIST_HEAD(&bf_head);
-               list_cut_position(&bf_head, &txq->txq_fifo[txq->txq_tailidx],
-                                 &lastbf->list);
--              INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
--              txq->axq_depth--;
--              txq->axq_tx_inprogress = false;
--              if (bf_is_ampdu_not_probing(bf))
--                      txq->axq_ampdu_depth--;
--              spin_unlock_bh(&txq->axq_lock);
--              txok = !(txs.ts_status & ATH9K_TXERR_MASK);
--
--              if (!bf_isampdu(bf)) {
--                      if (txs.ts_status & ATH9K_TXERR_XRETRY)
--                              bf->bf_state.bf_type |= BUF_XRETRY;
--                      ath_tx_rc_status(sc, bf, &txs, 1, txok ? 0 : 1, txok, true);
--              }
--
--              if (bf_isampdu(bf))
--                      ath_tx_complete_aggr(sc, txq, bf, &bf_head, &txs,
--                                           txok, true);
--              else
--                      ath_tx_complete_buf(sc, bf, txq, &bf_head,
--                                          &txs, txok, 0);
-+              if (list_empty(&txq->txq_fifo[txq->txq_tailidx])) {
-+                      INCR(txq->txq_tailidx, ATH_TXFIFO_DEPTH);
--              spin_lock_bh(&txq->axq_lock);
-+                      if (!list_empty(&txq->axq_q)) {
-+                              struct list_head bf_q;
--              if (!list_empty(&txq->txq_fifo_pending)) {
--                      INIT_LIST_HEAD(&bf_head);
--                      bf = list_first_entry(&txq->txq_fifo_pending,
--                                            struct ath_buf, list);
--                      list_cut_position(&bf_head,
--                                        &txq->txq_fifo_pending,
--                                        &bf->bf_lastbf->list);
--                      ath_tx_txqaddbuf(sc, txq, &bf_head);
--              } else if (sc->sc_flags & SC_OP_TXAGGR)
--                      ath_txq_schedule(sc, txq);
-+                              INIT_LIST_HEAD(&bf_q);
-+                              txq->axq_link = NULL;
-+                              list_splice_tail_init(&txq->axq_q, &bf_q);
-+                              ath_tx_txqaddbuf(sc, txq, &bf_q, true);
-+                      }
-+              }
-+              ath_tx_process_buffer(sc, txq, &ts, bf, &bf_head);
-               spin_unlock_bh(&txq->axq_lock);
-       }
- }
 --- a/net/mac80211/agg-rx.c
 +++ b/net/mac80211/agg-rx.c
-@@ -161,6 +161,8 @@ static void ieee80211_send_addba_resp(st
+@@ -176,6 +176,8 @@ static void ieee80211_send_addba_resp(st
                memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
        else if (sdata->vif.type == NL80211_IFTYPE_STATION)
                memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
  
        mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
                                          IEEE80211_STYPE_ACTION);
+@@ -262,7 +264,11 @@ void ieee80211_process_addba_request(str
+                               "%pM on tid %u\n",
+                               mgmt->sa, tid);
+ #endif /* CONFIG_MAC80211_HT_DEBUG */
+-              goto end;
++
++              /* delete existing Rx BA session on the same tid */
++              ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
++                                              WLAN_STATUS_UNSPECIFIED_QOS,
++                                              false);
+       }
+       /* prepare A-MPDU MLME for Rx aggregation */
 --- a/net/mac80211/agg-tx.c
 +++ b/net/mac80211/agg-tx.c
 @@ -79,7 +79,8 @@ static void ieee80211_send_addba_request
                memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
        else if (sdata->vif.type == NL80211_IFTYPE_STATION)
                memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
-@@ -388,7 +389,8 @@ int ieee80211_start_tx_ba_session(struct
+@@ -398,7 +399,8 @@ int ieee80211_start_tx_ba_session(struct
         */
        if (sdata->vif.type != NL80211_IFTYPE_STATION &&
            sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
        WLAN_STA_CLEAR_PS_FILT  = 1<<9,
        WLAN_STA_MFP            = 1<<10,
        WLAN_STA_BLOCK_BA       = 1<<11,
---- a/drivers/net/wireless/ath/ath9k/debug.h
-+++ b/drivers/net/wireless/ath/ath9k/debug.h
-@@ -116,6 +116,7 @@ struct ath_tx_stats {
-       u32 tx_bytes_all;
-       u32 queued;
-       u32 completed;
-+      u32 xretries;
-       u32 a_aggr;
-       u32 a_queued_hw;
-       u32 a_queued_sw;
---- a/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_eeprom.c
-@@ -4645,10 +4645,16 @@ static void ar9003_hw_set_power_per_rate
-       case 1:
+--- a/drivers/net/wireless/ath/ath9k/beacon.c
++++ b/drivers/net/wireless/ath/ath9k/beacon.c
+@@ -360,6 +360,7 @@ void ath_beacon_tasklet(unsigned long da
+       struct ath_common *common = ath9k_hw_common(ah);
+       struct ath_buf *bf = NULL;
+       struct ieee80211_vif *vif;
++      struct ath_tx_status ts;
+       int slot;
+       u32 bfaddr, bc = 0;
+@@ -384,7 +385,9 @@ void ath_beacon_tasklet(unsigned long da
+                       ath_dbg(common, ATH_DBG_BSTUCK,
+                               "beacon is officially stuck\n");
+                       sc->sc_flags |= SC_OP_TSF_RESET;
++                      spin_lock(&sc->sc_pcu_lock);
+                       ath_reset(sc, true);
++                      spin_unlock(&sc->sc_pcu_lock);
+               }
+               return;
+@@ -464,6 +467,11 @@ void ath_beacon_tasklet(unsigned long da
+               ath9k_hw_txstart(ah, sc->beacon.beaconq);
+               sc->beacon.ast_be_xmit += bc;     /* XXX per-vif? */
++              if (ah->caps.hw_caps & ATH9K_HW_CAP_EDMA) {
++                      spin_lock_bh(&sc->sc_pcu_lock);
++                      ath9k_hw_txprocdesc(ah, bf->bf_desc, (void *)&ts);
++                      spin_unlock_bh(&sc->sc_pcu_lock);
++              }
+       }
+ }
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -617,8 +617,11 @@ void ath_hw_check(struct work_struct *wo
+       ath_dbg(common, ATH_DBG_RESET, "Possible baseband hang, "
+               "busy=%d (try %d)\n", busy, sc->hw_busy_count + 1);
+       if (busy >= 99) {
+-              if (++sc->hw_busy_count >= 3)
++              if (++sc->hw_busy_count >= 3) {
++                      spin_lock_bh(&sc->sc_pcu_lock);
+                       ath_reset(sc, true);
++                      spin_unlock_bh(&sc->sc_pcu_lock);
++              }
+       } else if (busy >= 0)
+               sc->hw_busy_count = 0;
+@@ -637,7 +640,9 @@ static void ath_hw_pll_rx_hang_check(str
+                       /* Rx is hung for more than 500ms. Reset it */
+                       ath_dbg(common, ATH_DBG_RESET,
+                               "Possible RX hang, resetting");
++                      spin_lock_bh(&sc->sc_pcu_lock);
+                       ath_reset(sc, true);
++                      spin_unlock_bh(&sc->sc_pcu_lock);
+                       count = 0;
+               }
+       } else
+@@ -674,7 +679,9 @@ void ath9k_tasklet(unsigned long data)
+       if ((status & ATH9K_INT_FATAL) ||
+           (status & ATH9K_INT_BB_WATCHDOG)) {
++              spin_lock(&sc->sc_pcu_lock);
+               ath_reset(sc, true);
++              spin_unlock(&sc->sc_pcu_lock);
+               return;
+       }
+@@ -980,7 +987,6 @@ int ath_reset(struct ath_softc *sc, bool
+       del_timer_sync(&common->ani.timer);
+       ath9k_ps_wakeup(sc);
+-      spin_lock_bh(&sc->sc_pcu_lock);
+       ieee80211_stop_queues(hw);
+@@ -1023,7 +1029,6 @@ int ath_reset(struct ath_softc *sc, bool
+       }
+       ieee80211_wake_queues(hw);
+-      spin_unlock_bh(&sc->sc_pcu_lock);
+       /* Start ANI */
+       if (!common->disable_ani)
+@@ -2326,9 +2331,9 @@ static void ath9k_flush(struct ieee80211
+       ath9k_ps_wakeup(sc);
+       spin_lock_bh(&sc->sc_pcu_lock);
+       drain_txq = ath_drain_all_txq(sc, false);
+-      spin_unlock_bh(&sc->sc_pcu_lock);
+       if (!drain_txq)
+               ath_reset(sc, false);
++      spin_unlock_bh(&sc->sc_pcu_lock);
+       ath9k_ps_restore(sc);
+       ieee80211_wake_queues(hw);
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -565,11 +565,8 @@ static void ath_tx_complete_aggr(struct 
+       rcu_read_unlock();
+-      if (needreset) {
+-              spin_unlock_bh(&sc->sc_pcu_lock);
++      if (needreset)
+               ath_reset(sc, false);
+-              spin_lock_bh(&sc->sc_pcu_lock);
+-      }
+ }
+ static u32 ath_lookup_rate(struct ath_softc *sc, struct ath_buf *bf,
+@@ -664,7 +661,8 @@ static int ath_compute_num_delims(struct
+        * TODO - this could be improved to be dependent on the rate.
+        *      The hardware can keep up at lower rates, but not higher rates
+        */
+-      if (fi->keyix != ATH9K_TXKEYIX_INVALID)
++      if ((fi->keyix != ATH9K_TXKEYIX_INVALID) &&
++          !(sc->sc_ah->caps.hw_caps & ATH9K_HW_CAP_EDMA))
+               ndelim += ATH_AGGR_ENCRYPTDELIM;
+       /*
+@@ -2169,7 +2167,9 @@ static void ath_tx_complete_poll_work(st
+       if (needreset) {
+               ath_dbg(ath9k_hw_common(sc->sc_ah), ATH_DBG_RESET,
+                       "tx hung, resetting the chip\n");
++              spin_lock_bh(&sc->sc_pcu_lock);
+               ath_reset(sc, true);
++              spin_unlock_bh(&sc->sc_pcu_lock);
+       }
+       ieee80211_queue_delayed_work(sc->hw, &sc->tx_complete_work,
+--- a/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_paprd.c
+@@ -236,7 +236,7 @@ static void ar9003_paprd_get_gain_table(
+       memset(entry, 0, sizeof(ah->paprd_gain_table_entries));
+       memset(index, 0, sizeof(ah->paprd_gain_table_index));
+-      for (i = 0; i < 32; i++) {
++      for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
+               entry[i] = REG_READ(ah, reg);
+               index[i] = (entry[i] >> 24) & 0xff;
+               reg += 4;
+@@ -246,13 +246,13 @@ static void ar9003_paprd_get_gain_table(
+ static unsigned int ar9003_get_desired_gain(struct ath_hw *ah, int chain,
+                                           int target_power)
+ {
+-      int olpc_gain_delta = 0;
++      int olpc_gain_delta = 0, cl_gain_mod;
+       int alpha_therm, alpha_volt;
+       int therm_cal_value, volt_cal_value;
+       int therm_value, volt_value;
+       int thermal_gain_corr, voltage_gain_corr;
+       int desired_scale, desired_gain = 0;
+-      u32 reg;
++      u32 reg_olpc  = 0, reg_cl_gain  = 0;
+       REG_CLR_BIT(ah, AR_PHY_PAPRD_TRAINER_STAT1,
+                   AR_PHY_PAPRD_TRAINER_STAT1_PAPRD_TRAIN_DONE);
+@@ -271,15 +271,29 @@ static unsigned int ar9003_get_desired_g
+       volt_value = REG_READ_FIELD(ah, AR_PHY_BB_THERM_ADC_4,
+                                   AR_PHY_BB_THERM_ADC_4_LATEST_VOLT_VALUE);
+-      if (chain == 0)
+-              reg = AR_PHY_TPC_11_B0;
+-      else if (chain == 1)
+-              reg = AR_PHY_TPC_11_B1;
+-      else
+-              reg = AR_PHY_TPC_11_B2;
++      switch (chain) {
++      case 0:
++              reg_olpc = AR_PHY_TPC_11_B0;
++              reg_cl_gain = AR_PHY_CL_TAB_0;
++              break;
++      case 1:
++              reg_olpc = AR_PHY_TPC_11_B1;
++              reg_cl_gain = AR_PHY_CL_TAB_1;
++              break;
++      case 2:
++              reg_olpc = AR_PHY_TPC_11_B2;
++              reg_cl_gain = AR_PHY_CL_TAB_2;
++              break;
++      default:
++              ath_dbg(ath9k_hw_common(ah), ATH_DBG_CALIBRATE,
++              "Invalid chainmask: %d\n", chain);
++              break;
++      }
+-      olpc_gain_delta = REG_READ_FIELD(ah, reg,
++      olpc_gain_delta = REG_READ_FIELD(ah, reg_olpc,
+                                        AR_PHY_TPC_11_OLPC_GAIN_DELTA);
++      cl_gain_mod = REG_READ_FIELD(ah, reg_cl_gain,
++                                       AR_PHY_CL_TAB_CL_GAIN_MOD);
+       if (olpc_gain_delta >= 128)
+               olpc_gain_delta = olpc_gain_delta - 256;
+@@ -289,7 +303,7 @@ static unsigned int ar9003_get_desired_g
+       voltage_gain_corr = (alpha_volt * (volt_value - volt_cal_value) +
+                            (128 / 2)) / 128;
+       desired_gain = target_power - olpc_gain_delta - thermal_gain_corr -
+-          voltage_gain_corr + desired_scale;
++          voltage_gain_corr + desired_scale + cl_gain_mod;
+       return desired_gain;
+ }
+@@ -727,7 +741,7 @@ int ar9003_paprd_setup_gain_table(struct
+       desired_gain = ar9003_get_desired_gain(ah, chain, train_power);
+       gain_index = 0;
+-      for (i = 0; i < 32; i++) {
++      for (i = 0; i < PAPRD_GAIN_TABLE_ENTRIES; i++) {
+               if (ah->paprd_gain_table_index[i] >= desired_gain)
+                       break;
+               gain_index++;
+--- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
++++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
+@@ -1121,6 +1121,9 @@
+ #define AR_PHY_POWERTX_RATE8_POWERTXHT40_5    0x3F00
+ #define AR_PHY_POWERTX_RATE8_POWERTXHT40_5_S  8
++#define AR_PHY_CL_TAB_CL_GAIN_MOD             0x1f
++#define AR_PHY_CL_TAB_CL_GAIN_MOD_S           0
++
+ void ar9003_hw_set_chain_masks(struct ath_hw *ah, u8 rx, u8 tx);
+ #endif  /* AR9003_PHY_H */
+--- a/drivers/net/wireless/ath/ath5k/eeprom.c
++++ b/drivers/net/wireless/ath/ath5k/eeprom.c
+@@ -691,14 +691,12 @@ ath5k_eeprom_free_pcal_info(struct ath5k
+               if (!chinfo[pier].pd_curves)
+                       continue;
+-              for (pdg = 0; pdg < ee->ee_pd_gains[mode]; pdg++) {
++              for (pdg = 0; pdg < AR5K_EEPROM_N_PD_CURVES; pdg++) {
+                       struct ath5k_pdgain_info *pd =
+                                       &chinfo[pier].pd_curves[pdg];
+-                      if (pd != NULL) {
+-                              kfree(pd->pd_step);
+-                              kfree(pd->pd_pwr);
+-                      }
++                      kfree(pd->pd_step);
++                      kfree(pd->pd_pwr);
+               }
+               kfree(chinfo[pier].pd_curves);
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -229,6 +229,7 @@ static void ar9003_hw_fill_txdesc(struct
+ static int ar9003_hw_proc_txdesc(struct ath_hw *ah, void *ds,
+                                struct ath_tx_status *ts)
+ {
++      struct ar9003_txc *txc = (struct ar9003_txc *) ds;
+       struct ar9003_txs *ads;
+       u32 status;
+@@ -238,7 +239,11 @@ static int ar9003_hw_proc_txdesc(struct 
+       if ((status & AR_TxDone) == 0)
+               return -EINPROGRESS;
+-      ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
++      ts->qid = MS(ads->ds_info, AR_TxQcuNum);
++      if (!txc || (MS(txc->info, AR_TxQcuNum) == ts->qid))
++              ah->ts_tail = (ah->ts_tail + 1) % ah->ts_size;
++      else
++              return -ENOENT;
+       if ((MS(ads->ds_info, AR_DescId) != ATHEROS_VENDOR_ID) ||
+           (MS(ads->ds_info, AR_TxRxDesc) != 1)) {
+@@ -254,7 +259,6 @@ static int ar9003_hw_proc_txdesc(struct 
+       ts->ts_seqnum = MS(status, AR_SeqNum);
+       ts->tid = MS(status, AR_TxTid);
+-      ts->qid = MS(ads->ds_info, AR_TxQcuNum);
+       ts->desc_id = MS(ads->status1, AR_TxDescId);
+       ts->ts_tstamp = ads->status4;
+       ts->ts_status = 0;
+--- a/net/mac80211/wpa.c
++++ b/net/mac80211/wpa.c
+@@ -15,6 +15,7 @@
+ #include <linux/gfp.h>
+ #include <asm/unaligned.h>
+ #include <net/mac80211.h>
++#include <crypto/aes.h>
+ #include "ieee80211_i.h"
+ #include "michael.h"
+@@ -86,6 +87,11 @@ ieee80211_rx_h_michael_mic_verify(struct
+       struct sk_buff *skb = rx->skb;
+       struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
++      int queue = rx->queue;
++
++      /* otherwise, TKIP is vulnerable to TID 0 vs. non-QoS replays */
++      if (rx->queue == NUM_RX_DATA_QUEUES - 1)
++              queue = 0;
+       /*
+        * it makes no sense to check for MIC errors on anything other
+@@ -148,8 +154,8 @@ ieee80211_rx_h_michael_mic_verify(struct
+ update_iv:
+       /* update IV in key information to be able to detect replays */
+-      rx->key->u.tkip.rx[rx->queue].iv32 = rx->tkip_iv32;
+-      rx->key->u.tkip.rx[rx->queue].iv16 = rx->tkip_iv16;
++      rx->key->u.tkip.rx[queue].iv32 = rx->tkip_iv32;
++      rx->key->u.tkip.rx[queue].iv16 = rx->tkip_iv16;
+       return RX_CONTINUE;
+@@ -165,6 +171,7 @@ static int tkip_encrypt_skb(struct ieee8
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data;
+       struct ieee80211_key *key = tx->key;
+       struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
++      unsigned long flags;
+       unsigned int hdrlen;
+       int len, tail;
+       u8 *pos;
+@@ -192,11 +199,12 @@ static int tkip_encrypt_skb(struct ieee8
+       pos += hdrlen;
+       /* Increase IV for the frame */
++      spin_lock_irqsave(&key->u.tkip.txlock, flags);
+       key->u.tkip.tx.iv16++;
+       if (key->u.tkip.tx.iv16 == 0)
+               key->u.tkip.tx.iv32++;
+-
+-      pos = ieee80211_tkip_add_iv(pos, key, key->u.tkip.tx.iv16);
++      pos = ieee80211_tkip_add_iv(pos, key);
++      spin_unlock_irqrestore(&key->u.tkip.txlock, flags);
+       /* hwaccel - with software IV */
+       if (info->control.hw_key)
+@@ -205,9 +213,8 @@ static int tkip_encrypt_skb(struct ieee8
+       /* Add room for ICV */
+       skb_put(skb, TKIP_ICV_LEN);
+-      hdr = (struct ieee80211_hdr *) skb->data;
+       return ieee80211_tkip_encrypt_data(tx->local->wep_tx_tfm,
+-                                         key, pos, len, hdr->addr2);
++                                         key, skb, pos, len);
+ }
+@@ -235,6 +242,11 @@ ieee80211_crypto_tkip_decrypt(struct iee
+       struct ieee80211_key *key = rx->key;
+       struct sk_buff *skb = rx->skb;
+       struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
++      int queue = rx->queue;
++
++      /* otherwise, TKIP is vulnerable to TID 0 vs. non-QoS replays */
++      if (rx->queue == NUM_RX_DATA_QUEUES - 1)
++              queue = 0;
+       hdrlen = ieee80211_hdrlen(hdr->frame_control);
+@@ -255,7 +267,7 @@ ieee80211_crypto_tkip_decrypt(struct iee
+       res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
+                                         key, skb->data + hdrlen,
+                                         skb->len - hdrlen, rx->sta->sta.addr,
+-                                        hdr->addr1, hwaccel, rx->queue,
++                                        hdr->addr1, hwaccel, queue,
+                                         &rx->tkip_iv32,
+                                         &rx->tkip_iv16);
+       if (res != TKIP_DECRYPT_OK)
+@@ -283,6 +295,8 @@ static void ccmp_special_blocks(struct s
+       unsigned int hdrlen;
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
++      memset(scratch, 0, 6 * AES_BLOCK_LEN);
++
+       b_0 = scratch + 3 * AES_BLOCK_LEN;
+       aad = scratch + 4 * AES_BLOCK_LEN;
+@@ -373,8 +387,10 @@ static int ccmp_encrypt_skb(struct ieee8
+       struct ieee80211_key *key = tx->key;
+       struct ieee80211_tx_info *info = IEEE80211_SKB_CB(skb);
+       int hdrlen, len, tail;
+-      u8 *pos, *pn;
+-      int i;
++      u8 *pos;
++      u8 pn[6];
++      u64 pn64;
++      u8 scratch[6 * AES_BLOCK_LEN];
+       if (info->control.hw_key &&
+           !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV)) {
+@@ -402,14 +418,14 @@ static int ccmp_encrypt_skb(struct ieee8
+       hdr = (struct ieee80211_hdr *) pos;
+       pos += hdrlen;
+-      /* PN = PN + 1 */
+-      pn = key->u.ccmp.tx_pn;
++      pn64 = atomic64_inc_return(&key->u.ccmp.tx_pn);
+-      for (i = CCMP_PN_LEN - 1; i >= 0; i--) {
+-              pn[i]++;
+-              if (pn[i])
+-                      break;
+-      }
++      pn[5] = pn64;
++      pn[4] = pn64 >> 8;
++      pn[3] = pn64 >> 16;
++      pn[2] = pn64 >> 24;
++      pn[1] = pn64 >> 32;
++      pn[0] = pn64 >> 40;
+       ccmp_pn2hdr(pos, pn, key->conf.keyidx);
+@@ -418,8 +434,8 @@ static int ccmp_encrypt_skb(struct ieee8
+               return 0;
+       pos += CCMP_HDR_LEN;
+-      ccmp_special_blocks(skb, pn, key->u.ccmp.tx_crypto_buf, 0);
+-      ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, key->u.ccmp.tx_crypto_buf, pos, len,
++      ccmp_special_blocks(skb, pn, scratch, 0);
++      ieee80211_aes_ccm_encrypt(key->u.ccmp.tfm, scratch, pos, len,
+                                 pos, skb_put(skb, CCMP_MIC_LEN));
+       return 0;
+@@ -475,11 +491,12 @@ ieee80211_crypto_ccmp_decrypt(struct iee
+       }
+       if (!(status->flag & RX_FLAG_DECRYPTED)) {
++              u8 scratch[6 * AES_BLOCK_LEN];
+               /* hardware didn't decrypt/verify MIC */
+-              ccmp_special_blocks(skb, pn, key->u.ccmp.rx_crypto_buf, 1);
++              ccmp_special_blocks(skb, pn, scratch, 1);
+               if (ieee80211_aes_ccm_decrypt(
+-                          key->u.ccmp.tfm, key->u.ccmp.rx_crypto_buf,
++                          key->u.ccmp.tfm, scratch,
+                           skb->data + hdrlen + CCMP_HDR_LEN, data_len,
+                           skb->data + skb->len - CCMP_MIC_LEN,
+                           skb->data + hdrlen + CCMP_HDR_LEN))
+--- a/drivers/net/wireless/b43/xmit.c
++++ b/drivers/net/wireless/b43/xmit.c
+@@ -323,8 +323,7 @@ int b43_generate_txhdr(struct b43_wldev 
+                       /* we give the phase1key and iv16 here, the key is stored in
+                        * shm. With that the hardware can do phase 2 and encryption.
+                        */
+-                      ieee80211_get_tkip_key(info->control.hw_key, skb_frag,
+-                                      IEEE80211_TKIP_P1_KEY, (u8*)phase1key);
++                      ieee80211_get_tkip_p1k(info->control.hw_key, skb_frag, phase1key);
+                       /* phase1key is in host endian. Copy to little-endian txhdr->iv. */
+                       for (i = 0; i < 5; i++) {
+                               txhdr->iv[i * 2 + 0] = phase1key[i];
+--- a/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
++++ b/drivers/net/wireless/iwlegacy/iwl-4965-tx.c
+@@ -240,8 +240,7 @@ static void iwl4965_tx_cmd_build_hwcrypt
+       case WLAN_CIPHER_SUITE_TKIP:
+               tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
+-              ieee80211_get_tkip_key(keyconf, skb_frag,
+-                      IEEE80211_TKIP_P2_KEY, tx_cmd->key);
++              ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
+               IWL_DEBUG_TX(priv, "tx_cmd with tkip hwcrypto\n");
                break;
-       case 2:
--              scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              else
-+                      scaledPower = 0;
+--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
++++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+@@ -497,8 +497,7 @@ static void iwlagn_tx_cmd_build_hwcrypto
+       case WLAN_CIPHER_SUITE_TKIP:
+               tx_cmd->sec_ctl = TX_CMD_SEC_TKIP;
+-              ieee80211_get_tkip_key(keyconf, skb_frag,
+-                      IEEE80211_TKIP_P2_KEY, tx_cmd->key);
++              ieee80211_get_tkip_p2k(keyconf, skb_frag, tx_cmd->key);
+               IWL_DEBUG_TX(priv, "tx_cmd with tkip hwcrypto\n");
                break;
-       case 3:
--              scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              else
-+                      scaledPower = 0;
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -960,21 +960,6 @@ enum sta_notify_cmd {
+ };
+ /**
+- * enum ieee80211_tkip_key_type - get tkip key
+- *
+- * Used by drivers which need to get a tkip key for skb. Some drivers need a
+- * phase 1 key, others need a phase 2 key. A single function allows the driver
+- * to get the key, this enum indicates what type of key is required.
+- *
+- * @IEEE80211_TKIP_P1_KEY: the driver needs a phase 1 key
+- * @IEEE80211_TKIP_P2_KEY: the driver needs a phase 2 key
+- */
+-enum ieee80211_tkip_key_type {
+-      IEEE80211_TKIP_P1_KEY,
+-      IEEE80211_TKIP_P2_KEY,
+-};
+-
+-/**
+  * enum ieee80211_hw_flags - hardware flags
+  *
+  * These flags are used to indicate hardware capabilities to
+@@ -2568,21 +2553,33 @@ struct sk_buff *
+ ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif);
+ /**
+- * ieee80211_get_tkip_key - get a TKIP rc4 for skb
++ * ieee80211_get_tkip_p1k - get a TKIP phase 1 key
++ *
++ * This function returns the TKIP phase 1 key for the IV32 taken
++ * from the given packet.
++ *
++ * @keyconf: the parameter passed with the set key
++ * @skb: the packet to take the IV32 value from that will be encrypted
++ *    with this P1K
++ * @p1k: a buffer to which the key will be written, as 5 u16 values
++ */
++void ieee80211_get_tkip_p1k(struct ieee80211_key_conf *keyconf,
++                          struct sk_buff *skb, u16 *p1k);
++
++/**
++ * ieee80211_get_tkip_p2k - get a TKIP phase 2 key
+  *
+- * This function computes a TKIP rc4 key for an skb. It computes
+- * a phase 1 key if needed (iv16 wraps around). This function is to
+- * be used by drivers which can do HW encryption but need to compute
+- * to phase 1/2 key in SW.
++ * This function computes the TKIP RC4 key for the IV values
++ * in the packet.
+  *
+  * @keyconf: the parameter passed with the set key
+- * @skb: the skb for which the key is needed
+- * @type: TBD
+- * @key: a buffer to which the key will be written
+- */
+-void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
+-                              struct sk_buff *skb,
+-                              enum ieee80211_tkip_key_type type, u8 *key);
++ * @skb: the packet to take the IV32/IV16 values from that will be
++ *    encrypted with this key
++ * @p2k: a buffer to which the key will be written, 16 bytes
++ */
++void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf,
++                          struct sk_buff *skb, u8 *p2k);
++
+ /**
+  * ieee80211_wake_queue - wake specific queue
+  * @hw: pointer as obtained from ieee80211_alloc_hw().
+--- a/net/mac80211/key.c
++++ b/net/mac80211/key.c
+@@ -333,6 +333,7 @@ struct ieee80211_key *ieee80211_key_allo
+                                       get_unaligned_le16(seq);
+                       }
+               }
++              spin_lock_init(&key->u.tkip.txlock);
                break;
+       case WLAN_CIPHER_SUITE_CCMP:
+               key->conf.iv_len = CCMP_HDR_LEN;
+--- a/net/mac80211/key.h
++++ b/net/mac80211/key.h
+@@ -52,9 +52,10 @@ enum ieee80211_internal_tkip_state {
+ };
+ struct tkip_ctx {
+-      u32 iv32;
+-      u16 iv16;
+-      u16 p1k[5];
++      u32 iv32;       /* current iv32 */
++      u16 iv16;       /* current iv16 */
++      u16 p1k[5];     /* p1k cache */
++      u32 p1k_iv32;   /* iv32 for which p1k computed */
+       enum ieee80211_internal_tkip_state state;
+ };
+@@ -71,6 +72,9 @@ struct ieee80211_key {
+       union {
+               struct {
++                      /* protects tx context */
++                      spinlock_t txlock;
++
+                       /* last used TSC */
+                       struct tkip_ctx tx;
+@@ -78,7 +82,7 @@ struct ieee80211_key {
+                       struct tkip_ctx rx[NUM_RX_DATA_QUEUES];
+               } tkip;
+               struct {
+-                      u8 tx_pn[6];
++                      atomic64_t tx_pn;
+                       /*
+                        * Last received packet number. The first
+                        * NUM_RX_DATA_QUEUES counters are used with Data
+@@ -88,12 +92,9 @@ struct ieee80211_key {
+                       u8 rx_pn[NUM_RX_DATA_QUEUES + 1][6];
+                       struct crypto_cipher *tfm;
+                       u32 replays; /* dot11RSNAStatsCCMPReplays */
+-                      /* scratch buffers for virt_to_page() (crypto API) */
+ #ifndef AES_BLOCK_LEN
+ #define AES_BLOCK_LEN 16
+ #endif
+-                      u8 tx_crypto_buf[6 * AES_BLOCK_LEN];
+-                      u8 rx_crypto_buf[6 * AES_BLOCK_LEN];
+               } ccmp;
+               struct {
+                       u8 tx_pn[6];
+--- a/net/mac80211/tkip.c
++++ b/net/mac80211/tkip.c
+@@ -101,6 +101,7 @@ static void tkip_mixing_phase1(const u8 
+               p1k[4] += tkipS(p1k[3] ^ get_unaligned_le16(tk + 0 + j)) + i;
        }
+       ctx->state = TKIP_STATE_PHASE1_DONE;
++      ctx->p1k_iv32 = tsc_IV32;
+ }
+ static void tkip_mixing_phase2(const u8 *tk, struct tkip_ctx *ctx,
+@@ -140,60 +141,72 @@ static void tkip_mixing_phase2(const u8 
+ /* Add TKIP IV and Ext. IV at @pos. @iv0, @iv1, and @iv2 are the first octets
+  * of the IV. Returns pointer to the octet following IVs (i.e., beginning of
+  * the packet payload). */
+-u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, u16 iv16)
++u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key)
+ {
+-      pos = write_tkip_iv(pos, iv16);
++      lockdep_assert_held(&key->u.tkip.txlock);
++
++      pos = write_tkip_iv(pos, key->u.tkip.tx.iv16);
+       *pos++ = (key->conf.keyidx << 6) | (1 << 5) /* Ext IV */;
+       put_unaligned_le32(key->u.tkip.tx.iv32, pos);
+       return pos + 4;
+ }
+-void ieee80211_get_tkip_key(struct ieee80211_key_conf *keyconf,
+-                      struct sk_buff *skb, enum ieee80211_tkip_key_type type,
+-                      u8 *outkey)
++static void ieee80211_compute_tkip_p1k(struct ieee80211_key *key, u32 iv32)
+ {
+-      struct ieee80211_key *key = (struct ieee80211_key *)
+-                      container_of(keyconf, struct ieee80211_key, conf);
+-      struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
+-      u8 *data;
+-      const u8 *tk;
+-      struct tkip_ctx *ctx;
+-      u16 iv16;
+-      u32 iv32;
+-
+-      data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
+-      iv16 = data[2] | (data[0] << 8);
+-      iv32 = get_unaligned_le32(&data[4]);
+-
+-      tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
+-      ctx = &key->u.tkip.tx;
+-
+-#ifdef CONFIG_MAC80211_TKIP_DEBUG
+-      printk(KERN_DEBUG "TKIP encrypt: iv16 = 0x%04x, iv32 = 0x%08x\n",
+-                      iv16, iv32);
++      struct ieee80211_sub_if_data *sdata = key->sdata;
++      struct tkip_ctx *ctx = &key->u.tkip.tx;
++      const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
+-      if (iv32 != ctx->iv32) {
+-              printk(KERN_DEBUG "skb: iv32 = 0x%08x key: iv32 = 0x%08x\n",
+-                      iv32, ctx->iv32);
+-              printk(KERN_DEBUG "Wrap around of iv16 in the middle of a "
+-                      "fragmented packet\n");
+-      }
+-#endif
++      lockdep_assert_held(&key->u.tkip.txlock);
+-      /* Update the p1k only when the iv16 in the packet wraps around, this
+-       * might occur after the wrap around of iv16 in the key in case of
+-       * fragmented packets. */
+-      if (iv16 == 0 || ctx->state == TKIP_STATE_NOT_INIT)
+-              tkip_mixing_phase1(tk, ctx, hdr->addr2, iv32);
++      /*
++       * Update the P1K when the IV32 is different from the value it
++       * had when we last computed it (or when not initialised yet).
++       * This might flip-flop back and forth if packets are processed
++       * out-of-order due to the different ACs, but then we have to
++       * just compute the P1K more often.
++       */
++      if (ctx->p1k_iv32 != iv32 || ctx->state == TKIP_STATE_NOT_INIT)
++              tkip_mixing_phase1(tk, ctx, sdata->vif.addr, iv32);
++}
+-      if (type == IEEE80211_TKIP_P1_KEY) {
+-              memcpy(outkey, ctx->p1k, sizeof(u16) * 5);
+-              return;
+-      }
++void ieee80211_get_tkip_p1k(struct ieee80211_key_conf *keyconf,
++                          struct sk_buff *skb, u16 *p1k)
++{
++      struct ieee80211_key *key = (struct ieee80211_key *)
++                      container_of(keyconf, struct ieee80211_key, conf);
++      struct tkip_ctx *ctx = &key->u.tkip.tx;
++      struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
++      const u8 *data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
++      u32 iv32 = get_unaligned_le32(&data[4]);
++      unsigned long flags;
++
++      spin_lock_irqsave(&key->u.tkip.txlock, flags);
++      ieee80211_compute_tkip_p1k(key, iv32);
++      memcpy(p1k, ctx->p1k, sizeof(ctx->p1k));
++      spin_unlock_irqrestore(&key->u.tkip.txlock, flags);
++}
++EXPORT_SYMBOL(ieee80211_get_tkip_p1k);
+-      tkip_mixing_phase2(tk, ctx, iv16, outkey);
++void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf,
++                          struct sk_buff *skb, u8 *p2k)
++{
++      struct ieee80211_key *key = (struct ieee80211_key *)
++                      container_of(keyconf, struct ieee80211_key, conf);
++      const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
++      struct tkip_ctx *ctx = &key->u.tkip.tx;
++      struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data;
++      const u8 *data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control);
++      u32 iv32 = get_unaligned_le32(&data[4]);
++      u16 iv16 = data[2] | (data[0] << 8);
++      unsigned long flags;
++
++      spin_lock_irqsave(&key->u.tkip.txlock, flags);
++      ieee80211_compute_tkip_p1k(key, iv32);
++      tkip_mixing_phase2(tk, ctx, iv16, p2k);
++      spin_unlock_irqrestore(&key->u.tkip.txlock, flags);
+ }
+-EXPORT_SYMBOL(ieee80211_get_tkip_key);
++EXPORT_SYMBOL(ieee80211_get_tkip_p2k);
+ /*
+  * Encrypt packet payload with TKIP using @key. @pos is a pointer to the
+@@ -204,19 +217,15 @@ EXPORT_SYMBOL(ieee80211_get_tkip_key);
+  */
+ int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm,
+                               struct ieee80211_key *key,
+-                              u8 *pos, size_t payload_len, u8 *ta)
++                              struct sk_buff *skb,
++                              u8 *payload, size_t payload_len)
+ {
+       u8 rc4key[16];
+-      struct tkip_ctx *ctx = &key->u.tkip.tx;
+-      const u8 *tk = &key->conf.key[NL80211_TKIP_DATA_OFFSET_ENCR_KEY];
+-
+-      /* Calculate per-packet key */
+-      if (ctx->iv16 == 0 || ctx->state == TKIP_STATE_NOT_INIT)
+-              tkip_mixing_phase1(tk, ctx, ta, ctx->iv32);
+-      tkip_mixing_phase2(tk, ctx, ctx->iv16, rc4key);
++      ieee80211_get_tkip_p2k(&key->conf, skb, rc4key);
+-      return ieee80211_wep_encrypt_data(tfm, rc4key, 16, pos, payload_len);
++      return ieee80211_wep_encrypt_data(tfm, rc4key, 16,
++                                        payload, payload_len);
+ }
  
---- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
-+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
-@@ -524,10 +524,16 @@ static void ath9k_hw_set_ar9287_power_pe
-       case 1:
+ /* Decrypt packet payload with TKIP using @key. @pos is a pointer to the
+--- a/net/mac80211/tkip.h
++++ b/net/mac80211/tkip.h
+@@ -13,11 +13,13 @@
+ #include <linux/crypto.h>
+ #include "key.h"
+-u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key, u16 iv16);
++u8 *ieee80211_tkip_add_iv(u8 *pos, struct ieee80211_key *key);
+ int ieee80211_tkip_encrypt_data(struct crypto_cipher *tfm,
+-                               struct ieee80211_key *key,
+-                               u8 *pos, size_t payload_len, u8 *ta);
++                              struct ieee80211_key *key,
++                              struct sk_buff *skb,
++                              u8 *payload, size_t payload_len);
++
+ enum {
+       TKIP_DECRYPT_OK = 0,
+       TKIP_DECRYPT_NO_EXT_IV = -1,
+--- a/net/mac80211/cfg.c
++++ b/net/mac80211/cfg.c
+@@ -209,6 +209,7 @@ static int ieee80211_get_key(struct wiph
+       u8 seq[6] = {0};
+       struct key_params params;
+       struct ieee80211_key *key = NULL;
++      u64 pn64;
+       u32 iv32;
+       u16 iv16;
+       int err = -ENOENT;
+@@ -256,12 +257,13 @@ static int ieee80211_get_key(struct wiph
+               params.seq_len = 6;
+               break;
+       case WLAN_CIPHER_SUITE_CCMP:
+-              seq[0] = key->u.ccmp.tx_pn[5];
+-              seq[1] = key->u.ccmp.tx_pn[4];
+-              seq[2] = key->u.ccmp.tx_pn[3];
+-              seq[3] = key->u.ccmp.tx_pn[2];
+-              seq[4] = key->u.ccmp.tx_pn[1];
+-              seq[5] = key->u.ccmp.tx_pn[0];
++              pn64 = atomic64_read(&key->u.ccmp.tx_pn);
++              seq[0] = pn64;
++              seq[1] = pn64 >> 8;
++              seq[2] = pn64 >> 16;
++              seq[3] = pn64 >> 24;
++              seq[4] = pn64 >> 32;
++              seq[5] = pn64 >> 40;
+               params.seq = seq;
+               params.seq_len = 6;
                break;
-       case 2:
--              scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_TWO_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_TWO_CHAIN;
-+              else
-+                      scaledPower = 0;
+--- a/net/mac80211/debugfs_key.c
++++ b/net/mac80211/debugfs_key.c
+@@ -79,6 +79,7 @@ static ssize_t key_tx_spec_read(struct f
+                               size_t count, loff_t *ppos)
+ {
+       const u8 *tpn;
++      u64 pn;
+       char buf[20];
+       int len;
+       struct ieee80211_key *key = file->private_data;
+@@ -94,9 +95,10 @@ static ssize_t key_tx_spec_read(struct f
+                               key->u.tkip.tx.iv16);
                break;
-       case 3:
--              scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              if (scaledPower > REDUCE_SCALED_POWER_BY_THREE_CHAIN)
-+                      scaledPower -= REDUCE_SCALED_POWER_BY_THREE_CHAIN;
-+              else
-+                      scaledPower = 0;
+       case WLAN_CIPHER_SUITE_CCMP:
+-              tpn = key->u.ccmp.tx_pn;
++              pn = atomic64_read(&key->u.ccmp.tx_pn);
+               len = scnprintf(buf, sizeof(buf), "%02x%02x%02x%02x%02x%02x\n",
+-                              tpn[0], tpn[1], tpn[2], tpn[3], tpn[4], tpn[5]);
++                              (u8)(pn >> 40), (u8)(pn >> 32), (u8)(pn >> 24),
++                              (u8)(pn >> 16), (u8)(pn >> 8), (u8)pn);
                break;
-       }
-       scaledPower = max((u16)0, scaledPower);
+       case WLAN_CIPHER_SUITE_AES_CMAC:
+               tpn = key->u.aes_cmac.tx_pn;
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