ath9k: merge an upstream change to fix false tx hangs on ar9003
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index f06e9df..494c794 100644 (file)
---- a/net/wireless/reg.c
-+++ b/net/wireless/reg.c
-@@ -1456,7 +1456,8 @@ static void reg_process_hint(struct regu
-        * We only time out user hints, given that they should be the only
-        * source of bogus requests.
-        */
--      if (reg_request->initiator == NL80211_REGDOM_SET_BY_USER)
-+      if (r != -EALREADY &&
-+          reg_request->initiator == NL80211_REGDOM_SET_BY_USER)
-               schedule_delayed_work(&reg_timeout, msecs_to_jiffies(3142));
- }
---- a/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_calib.c
-@@ -18,13 +18,13 @@
- #include "hw-ops.h"
- #include "ar9003_phy.h"
--#define MPASS 3
- #define MAX_MEASUREMENT       8
--#define MAX_DIFFERENCE        10
-+#define MAX_MAG_DELTA 11
-+#define MAX_PHS_DELTA 10
- struct coeff {
--      int mag_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT][MPASS];
--      int phs_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT][MPASS];
-+      int mag_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT];
-+      int phs_coeff[AR9300_MAX_CHAINS][MAX_MEASUREMENT];
-       int iqc_coeff[2];
- };
-@@ -608,36 +608,48 @@ static bool ar9003_hw_calc_iq_corr(struc
-       return true;
- }
--static bool ar9003_hw_compute_closest_pass_and_avg(int *mp_coeff, int *mp_avg)
-+static void ar9003_hw_detect_outlier(int *mp_coeff, int nmeasurement,
-+                                   int max_delta)
- {
--      int diff[MPASS];
--
--      diff[0] = abs(mp_coeff[0] - mp_coeff[1]);
--      diff[1] = abs(mp_coeff[1] - mp_coeff[2]);
--      diff[2] = abs(mp_coeff[2] - mp_coeff[0]);
--
--      if (diff[0] > MAX_DIFFERENCE &&
--          diff[1] > MAX_DIFFERENCE &&
--          diff[2] > MAX_DIFFERENCE)
--              return false;
--
--      if (diff[0] <= diff[1] && diff[0] <= diff[2])
--              *mp_avg = (mp_coeff[0] + mp_coeff[1]) / 2;
--      else if (diff[1] <= diff[2])
--              *mp_avg = (mp_coeff[1] + mp_coeff[2]) / 2;
--      else
--              *mp_avg = (mp_coeff[2] + mp_coeff[0]) / 2;
-+      int mp_max = -64, max_idx = 0;
-+      int mp_min = 63, min_idx = 0;
-+      int mp_avg = 0, i, outlier_idx = 0;
+--- a/net/mac80211/agg-rx.c
++++ b/net/mac80211/agg-rx.c
+@@ -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);
++      else if (sdata->vif.type == NL80211_IFTYPE_WDS)
++              memcpy(mgmt->bssid, da, 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;
 +
-+      /* find min/max mismatch across all calibrated gains */
-+      for (i = 0; i < nmeasurement; i++) {
-+              mp_avg += mp_coeff[i];
-+              if (mp_coeff[i] > mp_max) {
-+                      mp_max = mp_coeff[i];
-+                      max_idx = i;
-+              } else if (mp_coeff[i] < mp_min) {
-+                      mp_min = mp_coeff[i];
-+                      min_idx = i;
-+              }
-+      }
--      return true;
-+      /* find average (exclude max abs value) */
-+      for (i = 0; i < nmeasurement; i++) {
-+              if ((abs(mp_coeff[i]) < abs(mp_max)) ||
-+                  (abs(mp_coeff[i]) < abs(mp_min)))
-+                      mp_avg += mp_coeff[i];
-+      }
-+      mp_avg /= (nmeasurement - 1);
-+
-+      /* detect outlier */
-+      if (abs(mp_max - mp_min) > max_delta) {
-+              if (abs(mp_max - mp_avg) > abs(mp_min - mp_avg))
-+                      outlier_idx = max_idx;
-+              else
-+                      outlier_idx = min_idx;
-+      }
-+      mp_coeff[outlier_idx] = mp_avg;
- }
- static void ar9003_hw_tx_iqcal_load_avg_2_passes(struct ath_hw *ah,
-                                                u8 num_chains,
-                                                struct coeff *coeff)
- {
--      struct ath_common *common = ath9k_hw_common(ah);
-       int i, im, nmeasurement;
--      int magnitude, phase;
-       u32 tx_corr_coeff[MAX_MEASUREMENT][AR9300_MAX_CHAINS];
-       memset(tx_corr_coeff, 0, sizeof(tx_corr_coeff));
-@@ -657,37 +669,28 @@ static void ar9003_hw_tx_iqcal_load_avg_
-       /* Load the average of 2 passes */
-       for (i = 0; i < num_chains; i++) {
--              if (AR_SREV_9485(ah))
--                      nmeasurement = REG_READ_FIELD(ah,
--                                      AR_PHY_TX_IQCAL_STATUS_B0_9485,
--                                      AR_PHY_CALIBRATED_GAINS_0);
--              else
--                      nmeasurement = REG_READ_FIELD(ah,
--                                      AR_PHY_TX_IQCAL_STATUS_B0,
--                                      AR_PHY_CALIBRATED_GAINS_0);
-+              nmeasurement = REG_READ_FIELD(ah,
-+                              AR_PHY_TX_IQCAL_STATUS_B0,
-+                              AR_PHY_CALIBRATED_GAINS_0);
-               if (nmeasurement > MAX_MEASUREMENT)
-                       nmeasurement = MAX_MEASUREMENT;
--              for (im = 0; im < nmeasurement; im++) {
--                      /*
--                       * Determine which 2 passes are closest and compute avg
--                       * magnitude
--                       */
--                      if (!ar9003_hw_compute_closest_pass_and_avg(coeff->mag_coeff[i][im],
--                                                                  &magnitude))
--                              goto disable_txiqcal;
-+              /* detect outlier only if nmeasurement > 1 */
-+              if (nmeasurement > 1) {
-+                      /* Detect magnitude outlier */
-+                      ar9003_hw_detect_outlier(coeff->mag_coeff[i],
-+                                      nmeasurement, MAX_MAG_DELTA);
-+
-+                      /* Detect phase outlier */
-+                      ar9003_hw_detect_outlier(coeff->phs_coeff[i],
-+                                      nmeasurement, MAX_PHS_DELTA);
-+              }
++              /* delete existing Rx BA session on the same tid */
++              ___ieee80211_stop_rx_ba_session(sta, tid, WLAN_BACK_RECIPIENT,
++                                              WLAN_STATUS_UNSPECIFIED_QOS,
++                                              false);
+       }
  
--                      /*
--                       * Determine which 2 passes are closest and compute avg
--                       * phase
--                       */
--                      if (!ar9003_hw_compute_closest_pass_and_avg(coeff->phs_coeff[i][im],
--                                                                  &phase))
--                              goto disable_txiqcal;
-+              for (im = 0; im < nmeasurement; im++) {
--                      coeff->iqc_coeff[0] = (magnitude & 0x7f) |
--                                            ((phase & 0x7f) << 7);
-+                      coeff->iqc_coeff[0] = (coeff->mag_coeff[i][im] & 0x7f) |
-+                              ((coeff->phs_coeff[i][im] & 0x7f) << 7);
-                       if ((im % 2) == 0)
-                               REG_RMW_FIELD(ah, tx_corr_coeff[im][i],
-@@ -707,141 +710,37 @@ static void ar9003_hw_tx_iqcal_load_avg_
-       return;
--disable_txiqcal:
--      REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_3,
--                    AR_PHY_TX_IQCAL_CONTROL_3_IQCORR_EN, 0x0);
--      REG_RMW_FIELD(ah, AR_PHY_RX_IQCAL_CORR_B0,
--                    AR_PHY_RX_IQCAL_CORR_B0_LOOPBACK_IQCORR_EN, 0x0);
--
--      ath_dbg(common, ATH_DBG_CALIBRATE, "TX IQ Cal disabled\n");
+       /* 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->da, da, ETH_ALEN);
+       memcpy(mgmt->sa, sdata->vif.addr, ETH_ALEN);
+       if (sdata->vif.type == NL80211_IFTYPE_AP ||
+-          sdata->vif.type == NL80211_IFTYPE_AP_VLAN)
++          sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
++          sdata->vif.type == NL80211_IFTYPE_WDS)
+               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);
+@@ -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 &&
+-          sdata->vif.type != NL80211_IFTYPE_AP)
++          sdata->vif.type != NL80211_IFTYPE_AP &&
++          sdata->vif.type != NL80211_IFTYPE_WDS)
+               return -EINVAL;
+       if (test_sta_flags(sta, WLAN_STA_BLOCK_BA)) {
+--- a/net/mac80211/debugfs_sta.c
++++ b/net/mac80211/debugfs_sta.c
+@@ -59,7 +59,7 @@ static ssize_t sta_flags_read(struct fil
+       char buf[100];
+       struct sta_info *sta = file->private_data;
+       u32 staflags = get_sta_flags(sta);
+-      int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s%s",
++      int res = scnprintf(buf, sizeof(buf), "%s%s%s%s%s%s%s%s",
+               staflags & WLAN_STA_AUTH ? "AUTH\n" : "",
+               staflags & WLAN_STA_ASSOC ? "ASSOC\n" : "",
+               staflags & WLAN_STA_PS_STA ? "PS (sta)\n" : "",
+@@ -67,7 +67,6 @@ static ssize_t sta_flags_read(struct fil
+               staflags & WLAN_STA_AUTHORIZED ? "AUTHORIZED\n" : "",
+               staflags & WLAN_STA_SHORT_PREAMBLE ? "SHORT PREAMBLE\n" : "",
+               staflags & WLAN_STA_WME ? "WME\n" : "",
+-              staflags & WLAN_STA_WDS ? "WDS\n" : "",
+               staflags & WLAN_STA_MFP ? "MFP\n" : "");
+       return simple_read_from_buffer(userbuf, count, ppos, buf, res);
  }
--static void ar9003_hw_tx_iq_cal(struct ath_hw *ah)
-+static bool ar9003_hw_tx_iq_cal_run(struct ath_hw *ah)
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -178,7 +178,6 @@ static int ieee80211_do_open(struct net_
  {
-       struct ath_common *common = ath9k_hw_common(ah);
--      static const u32 txiqcal_status[AR9300_MAX_CHAINS] = {
--              AR_PHY_TX_IQCAL_STATUS_B0,
--              AR_PHY_TX_IQCAL_STATUS_B1,
--              AR_PHY_TX_IQCAL_STATUS_B2,
--      };
--      static const u32 chan_info_tab[] = {
--              AR_PHY_CHAN_INFO_TAB_0,
--              AR_PHY_CHAN_INFO_TAB_1,
--              AR_PHY_CHAN_INFO_TAB_2,
--      };
--      struct coeff coeff;
--      s32 iq_res[6];
--      s32 i, j, ip, im, nmeasurement;
--      u8 nchains = get_streams(common->tx_chainmask);
--
--      for (ip = 0; ip < MPASS; ip++) {
--              REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1,
--                            AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT,
--                            DELPT);
--              REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START,
--                            AR_PHY_TX_IQCAL_START_DO_CAL,
--                            AR_PHY_TX_IQCAL_START_DO_CAL);
--
--              if (!ath9k_hw_wait(ah, AR_PHY_TX_IQCAL_START,
--                                 AR_PHY_TX_IQCAL_START_DO_CAL,
--                                 0, AH_WAIT_TIMEOUT)) {
--                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                              "Tx IQ Cal not complete.\n");
--                      goto TX_IQ_CAL_FAILED;
+       struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+       struct ieee80211_local *local = sdata->local;
+-      struct sta_info *sta;
+       u32 changed = 0;
+       int res;
+       u32 hw_reconf_flags = 0;
+@@ -290,27 +289,6 @@ static int ieee80211_do_open(struct net_
+       set_bit(SDATA_STATE_RUNNING, &sdata->state);
+-      if (sdata->vif.type == NL80211_IFTYPE_WDS) {
+-              /* Create STA entry for the WDS peer */
+-              sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
+-                                   GFP_KERNEL);
+-              if (!sta) {
+-                      res = -ENOMEM;
+-                      goto err_del_interface;
 -              }
 -
--              nmeasurement = REG_READ_FIELD(ah, AR_PHY_TX_IQCAL_STATUS_B0,
--                                            AR_PHY_CALIBRATED_GAINS_0);
--                      if (nmeasurement > MAX_MEASUREMENT)
--                              nmeasurement = MAX_MEASUREMENT;
--
--              for (i = 0; i < nchains; i++) {
--                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                              "Doing Tx IQ Cal for chain %d.\n", i);
--                      for (im = 0; im < nmeasurement; im++) {
--                              if (REG_READ(ah, txiqcal_status[i]) &
--                                           AR_PHY_TX_IQCAL_STATUS_FAILED) {
--                                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                                              "Tx IQ Cal failed for chain %d.\n", i);
--                                      goto TX_IQ_CAL_FAILED;
--                              }
--
--                              for (j = 0; j < 3; j++) {
--                                      u8 idx = 2 * j,
--                                         offset = 4 * (3 * im + j);
--
--                                      REG_RMW_FIELD(ah, AR_PHY_CHAN_INFO_MEMORY,
--                                                    AR_PHY_CHAN_INFO_TAB_S2_READ,
--                                                    0);
--
--                                      /* 32 bits */
--                                      iq_res[idx] = REG_READ(ah,
--                                                      chan_info_tab[i] +
--                                                      offset);
--
--                                      REG_RMW_FIELD(ah, AR_PHY_CHAN_INFO_MEMORY,
--                                                    AR_PHY_CHAN_INFO_TAB_S2_READ,
--                                                    1);
--
--                                      /* 16 bits */
--                                      iq_res[idx+1] = 0xffff & REG_READ(ah,
--                                                              chan_info_tab[i] +
--                                                              offset);
+-              /* no locking required since STA is not live yet */
+-              sta->flags |= WLAN_STA_AUTHORIZED;
 -
--                                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                                              "IQ RES[%d]=0x%x IQ_RES[%d]=0x%x\n",
--                                              idx, iq_res[idx], idx+1, iq_res[idx+1]);
--                              }
--
--                              if (!ar9003_hw_calc_iq_corr(ah, i, iq_res,
--                                                          coeff.iqc_coeff)) {
--                                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                                              "Failed in calculation of IQ correction.\n");
--                                      goto TX_IQ_CAL_FAILED;
--                              }
--                              coeff.mag_coeff[i][im][ip] =
--                                              coeff.iqc_coeff[0] & 0x7f;
--                              coeff.phs_coeff[i][im][ip] =
--                                              (coeff.iqc_coeff[0] >> 7) & 0x7f;
--
--                              if (coeff.mag_coeff[i][im][ip] > 63)
--                                      coeff.mag_coeff[i][im][ip] -= 128;
--                              if (coeff.phs_coeff[i][im][ip] > 63)
--                                      coeff.phs_coeff[i][im][ip] -= 128;
--
--                      }
+-              res = sta_info_insert(sta);
+-              if (res) {
+-                      /* STA has been freed */
+-                      goto err_del_interface;
 -              }
--      }
--
--      ar9003_hw_tx_iqcal_load_avg_2_passes(ah, nchains, &coeff);
 -
--      return;
--
--TX_IQ_CAL_FAILED:
--      ath_dbg(common, ATH_DBG_CALIBRATE, "Tx IQ Cal failed\n");
--}
+-              rate_control_rate_init(sta);
+-      }
 -
--static void ar9003_hw_tx_iq_cal_run(struct ath_hw *ah)
--{
-       u8 tx_gain_forced;
--      REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1_9485,
--                    AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT, DELPT);
-       tx_gain_forced = REG_READ_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
-                                       AR_PHY_TXGAIN_FORCE);
-       if (tx_gain_forced)
-               REG_RMW_FIELD(ah, AR_PHY_TX_FORCED_GAIN,
-                             AR_PHY_TXGAIN_FORCE, 0);
--      REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START_9485,
--                    AR_PHY_TX_IQCAL_START_DO_CAL_9485, 1);
-+      REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_START,
-+                    AR_PHY_TX_IQCAL_START_DO_CAL, 1);
+       /*
+        * set_multicast_list will be invoked by the networking core
+        * which will check whether any increments here were done in
+@@ -344,8 +322,7 @@ static int ieee80211_do_open(struct net_
+       netif_tx_start_all_queues(dev);
+       return 0;
+- err_del_interface:
+-      drv_remove_interface(local, &sdata->vif);
 +
-+      if (!ath9k_hw_wait(ah, AR_PHY_TX_IQCAL_START,
-+                      AR_PHY_TX_IQCAL_START_DO_CAL, 0,
-+                      AH_WAIT_TIMEOUT)) {
-+              ath_dbg(common, ATH_DBG_CALIBRATE,
-+                      "Tx IQ Cal is not completed.\n");
-+              return false;
-+      }
-+      return true;
+  err_stop:
+       if (!local->open_count)
+               drv_stop(local);
+@@ -718,6 +695,70 @@ static void ieee80211_if_setup(struct ne
+       dev->destructor = free_netdev;
  }
  
- static void ar9003_hw_tx_iq_cal_post_proc(struct ath_hw *ah)
- {
-       struct ath_common *common = ath9k_hw_common(ah);
-       const u32 txiqcal_status[AR9300_MAX_CHAINS] = {
--              AR_PHY_TX_IQCAL_STATUS_B0_9485,
-+              AR_PHY_TX_IQCAL_STATUS_B0,
-               AR_PHY_TX_IQCAL_STATUS_B1,
-               AR_PHY_TX_IQCAL_STATUS_B2,
-       };
-@@ -853,7 +752,7 @@ static void ar9003_hw_tx_iq_cal_post_pro
-       struct coeff coeff;
-       s32 iq_res[6];
-       u8 num_chains = 0;
--      int i, ip, im, j;
-+      int i, im, j;
-       int nmeasurement;
-       for (i = 0; i < AR9300_MAX_CHAINS; i++) {
-@@ -861,71 +760,69 @@ static void ar9003_hw_tx_iq_cal_post_pro
-                       num_chains++;
-       }
--      for (ip = 0; ip < MPASS; ip++) {
--              for (i = 0; i < num_chains; i++) {
--                      nmeasurement = REG_READ_FIELD(ah,
--                                      AR_PHY_TX_IQCAL_STATUS_B0_9485,
--                                      AR_PHY_CALIBRATED_GAINS_0);
--                      if (nmeasurement > MAX_MEASUREMENT)
--                              nmeasurement = MAX_MEASUREMENT;
-+      for (i = 0; i < num_chains; i++) {
-+              nmeasurement = REG_READ_FIELD(ah,
-+                              AR_PHY_TX_IQCAL_STATUS_B0,
-+                              AR_PHY_CALIBRATED_GAINS_0);
-+              if (nmeasurement > MAX_MEASUREMENT)
-+                      nmeasurement = MAX_MEASUREMENT;
++static void ieee80211_wds_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
++                                       struct sk_buff *skb)
++{
++      struct ieee80211_local *local = sdata->local;
++      struct ieee80211_rx_status *rx_status;
++      struct ieee802_11_elems elems;
++      struct ieee80211_mgmt *mgmt;
++      struct sta_info *sta;
++      size_t baselen;
++      u32 rates = 0;
++      u16 stype;
++      bool new = false;
++      enum ieee80211_band band = local->hw.conf.channel->band;
++      struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
 +
-+              for (im = 0; im < nmeasurement; im++) {
-+                      ath_dbg(common, ATH_DBG_CALIBRATE,
-+                              "Doing Tx IQ Cal for chain %d.\n", i);
--                      for (im = 0; im < nmeasurement; im++) {
-+                      if (REG_READ(ah, txiqcal_status[i]) &
-+                                      AR_PHY_TX_IQCAL_STATUS_FAILED) {
-                               ath_dbg(common, ATH_DBG_CALIBRATE,
--                                      "Doing Tx IQ Cal for chain %d.\n", i);
--
--                              if (REG_READ(ah, txiqcal_status[i]) &
--                                  AR_PHY_TX_IQCAL_STATUS_FAILED) {
--                                      ath_dbg(common, ATH_DBG_CALIBRATE,
-                                       "Tx IQ Cal failed for chain %d.\n", i);
--                                      goto tx_iqcal_fail;
--                              }
-+                              goto tx_iqcal_fail;
-+                      }
--                              for (j = 0; j < 3; j++) {
--                                      u32 idx = 2 * j, offset = 4 * (3 * im + j);
-+                      for (j = 0; j < 3; j++) {
-+                              u32 idx = 2 * j, offset = 4 * (3 * im + j);
--                                      REG_RMW_FIELD(ah,
-+                              REG_RMW_FIELD(ah,
-                                               AR_PHY_CHAN_INFO_MEMORY,
-                                               AR_PHY_CHAN_INFO_TAB_S2_READ,
-                                               0);
--                                      /* 32 bits */
--                                      iq_res[idx] = REG_READ(ah,
--                                                      chan_info_tab[i] +
--                                                      offset);
-+                              /* 32 bits */
-+                              iq_res[idx] = REG_READ(ah,
-+                                              chan_info_tab[i] +
-+                                              offset);
--                                      REG_RMW_FIELD(ah,
-+                              REG_RMW_FIELD(ah,
-                                               AR_PHY_CHAN_INFO_MEMORY,
-                                               AR_PHY_CHAN_INFO_TAB_S2_READ,
-                                               1);
--                                      /* 16 bits */
--                                      iq_res[idx + 1] = 0xffff & REG_READ(ah,
--                                                        chan_info_tab[i] + offset);
--
--                                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                                              "IQ RES[%d]=0x%x"
--                                              "IQ_RES[%d]=0x%x\n",
--                                              idx, iq_res[idx], idx + 1,
--                                              iq_res[idx + 1]);
--                              }
-+                              /* 16 bits */
-+                              iq_res[idx + 1] = 0xffff & REG_READ(ah,
-+                                              chan_info_tab[i] + offset);
--                              if (!ar9003_hw_calc_iq_corr(ah, i, iq_res,
--                                                          coeff.iqc_coeff)) {
--                                      ath_dbg(common, ATH_DBG_CALIBRATE,
--                                       "Failed in calculation of IQ correction.\n");
--                                      goto tx_iqcal_fail;
--                              }
-+                              ath_dbg(common, ATH_DBG_CALIBRATE,
-+                                      "IQ RES[%d]=0x%x"
-+                                      "IQ_RES[%d]=0x%x\n",
-+                                      idx, iq_res[idx], idx + 1,
-+                                      iq_res[idx + 1]);
-+                      }
--                              coeff.mag_coeff[i][im][ip] =
--                                              coeff.iqc_coeff[0] & 0x7f;
--                              coeff.phs_coeff[i][im][ip] =
--                                              (coeff.iqc_coeff[0] >> 7) & 0x7f;
--
--                              if (coeff.mag_coeff[i][im][ip] > 63)
--                                      coeff.mag_coeff[i][im][ip] -= 128;
--                              if (coeff.phs_coeff[i][im][ip] > 63)
--                                      coeff.phs_coeff[i][im][ip] -= 128;
-+                      if (!ar9003_hw_calc_iq_corr(ah, i, iq_res,
-+                                              coeff.iqc_coeff)) {
-+                              ath_dbg(common, ATH_DBG_CALIBRATE,
-+                                      "Failed in calculation of \
-+                                      IQ correction.\n");
-+                              goto tx_iqcal_fail;
-                       }
++      rx_status = IEEE80211_SKB_RXCB(skb);
++      mgmt = (struct ieee80211_mgmt *) skb->data;
++      stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
 +
-+                      coeff.mag_coeff[i][im] = coeff.iqc_coeff[0] & 0x7f;
-+                      coeff.phs_coeff[i][im] =
-+                              (coeff.iqc_coeff[0] >> 7) & 0x7f;
++      if (stype != IEEE80211_STYPE_BEACON)
++              return;
 +
-+                      if (coeff.mag_coeff[i][im] > 63)
-+                              coeff.mag_coeff[i][im] -= 128;
-+                      if (coeff.phs_coeff[i][im] > 63)
-+                              coeff.phs_coeff[i][im] -= 128;
-               }
-       }
-       ar9003_hw_tx_iqcal_load_avg_2_passes(ah, num_chains, &coeff);
-@@ -941,6 +838,7 @@ static bool ar9003_hw_init_cal(struct at
++      baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
++      if (baselen > skb->len)
++              return;
++
++      ieee802_11_parse_elems(mgmt->u.probe_resp.variable,
++                             skb->len - baselen, &elems);
++
++      rates = ieee80211_sta_get_rates(local, &elems, band);
++
++      rcu_read_lock();
++
++      sta = sta_info_get(sdata, sdata->u.wds.remote_addr);
++
++      if (!sta) {
++              rcu_read_unlock();
++              sta = sta_info_alloc(sdata, sdata->u.wds.remote_addr,
++                                   GFP_KERNEL);
++              if (!sta)
++                      return;
++
++              new = true;
++      }
++
++      sta->last_rx = jiffies;
++      sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
++
++      if (elems.ht_cap_elem)
++              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
++                              elems.ht_cap_elem, &sta->sta.ht_cap);
++
++      if (elems.wmm_param)
++              set_sta_flags(sta, WLAN_STA_WME);
++
++      if (new) {
++              sta->flags = WLAN_STA_AUTHORIZED;
++              rate_control_rate_init(sta);
++              sta_info_insert_rcu(sta);
++      }
++
++      rcu_read_unlock();
++}
++
+ static void ieee80211_iface_work(struct work_struct *work)
  {
+       struct ieee80211_sub_if_data *sdata =
+@@ -822,6 +863,9 @@ static void ieee80211_iface_work(struct 
+                               break;
+                       ieee80211_mesh_rx_queued_mgmt(sdata, skb);
+                       break;
++              case NL80211_IFTYPE_WDS:
++                      ieee80211_wds_rx_queued_mgmt(sdata, skb);
++                      break;
+               default:
+                       WARN(1, "frame for unexpected interface type");
+                       break;
+--- a/net/mac80211/rx.c
++++ b/net/mac80211/rx.c
+@@ -2137,7 +2137,8 @@ ieee80211_rx_h_action(struct ieee80211_r
+                */
+               if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+                   sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+-                  sdata->vif.type != NL80211_IFTYPE_AP)
++                  sdata->vif.type != NL80211_IFTYPE_AP &&
++                  sdata->vif.type != NL80211_IFTYPE_WDS)
+                       break;
+               /* verify action_code is present */
+@@ -2335,13 +2336,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+       if (!ieee80211_vif_is_mesh(&sdata->vif) &&
+           sdata->vif.type != NL80211_IFTYPE_ADHOC &&
+-          sdata->vif.type != NL80211_IFTYPE_STATION)
++          sdata->vif.type != NL80211_IFTYPE_STATION &&
++          sdata->vif.type != NL80211_IFTYPE_WDS)
+               return RX_DROP_MONITOR;
+       switch (stype) {
+       case cpu_to_le16(IEEE80211_STYPE_BEACON):
+       case cpu_to_le16(IEEE80211_STYPE_PROBE_RESP):
+-              /* process for all: mesh, mlme, ibss */
++              /* process for all: mesh, mlme, ibss, wds */
+               break;
+       case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
+       case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
+@@ -2680,10 +2682,16 @@ static int prepare_for_handlers(struct i
+               }
+               break;
+       case NL80211_IFTYPE_WDS:
+-              if (bssid || !ieee80211_is_data(hdr->frame_control))
+-                      return 0;
+               if (compare_ether_addr(sdata->u.wds.remote_addr, hdr->addr2))
+                       return 0;
++
++              if (ieee80211_is_data(hdr->frame_control) ||
++                  ieee80211_is_action(hdr->frame_control)) {
++                      if (compare_ether_addr(sdata->vif.addr, hdr->addr1))
++                              return 0;
++              } else if (!ieee80211_is_beacon(hdr->frame_control))
++                      return 0;
++
+               break;
+       default:
+               /* should never get here */
+--- a/net/mac80211/sta_info.h
++++ b/net/mac80211/sta_info.h
+@@ -31,7 +31,6 @@
+  *    frames.
+  * @WLAN_STA_ASSOC_AP: We're associated to that station, it is an AP.
+  * @WLAN_STA_WME: Station is a QoS-STA.
+- * @WLAN_STA_WDS: Station is one of our WDS peers.
+  * @WLAN_STA_CLEAR_PS_FILT: Clear PS filter in hardware (using the
+  *    IEEE80211_TX_CTL_CLEAR_PS_FILT control flag) when the next
+  *    frame to this station is transmitted.
+@@ -54,7 +53,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_SHORT_PREAMBLE = 1<<4,
+       WLAN_STA_ASSOC_AP       = 1<<5,
+       WLAN_STA_WME            = 1<<6,
+-      WLAN_STA_WDS            = 1<<7,
+       WLAN_STA_CLEAR_PS_FILT  = 1<<9,
+       WLAN_STA_MFP            = 1<<10,
+       WLAN_STA_BLOCK_BA       = 1<<11,
+--- 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);
-       int val;
-+      bool txiqcal_done = false;
+       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);
+               }
  
-       val = REG_READ(ah, AR_ENT_OTP);
-       ath_dbg(common, ATH_DBG_CALIBRATE, "ath9k: AR_ENT_OTP 0x%x\n", val);
-@@ -957,14 +855,22 @@ static bool ar9003_hw_init_cal(struct at
-               ar9003_hw_set_chain_masks(ah, 0x7, 0x7);
+               return;
+@@ -464,6 +467,11 @@ void ath_beacon_tasklet(unsigned long da
+               ath9k_hw_txstart(ah, sc->beacon.beaconq);
  
-       /* Do Tx IQ Calibration */
--      if (AR_SREV_9485(ah))
--              ar9003_hw_tx_iq_cal_run(ah);
--      else
--              ar9003_hw_tx_iq_cal(ah);
-+      REG_RMW_FIELD(ah, AR_PHY_TX_IQCAL_CONTROL_1,
-+                    AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT,
-+                    DELPT);
--      REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
--      udelay(5);
--      REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
-+      /*
-+       * For AR9485 or later chips, TxIQ cal runs as part of
-+       * AGC calibration
-+       */
-+      if (AR_SREV_9485_OR_LATER(ah))
-+              txiqcal_done = true;
-+      else {
-+              txiqcal_done = ar9003_hw_tx_iq_cal_run(ah);
-+              REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_DIS);
-+              udelay(5);
-+              REG_WRITE(ah, AR_PHY_ACTIVE, AR_PHY_ACTIVE_EN);
-+      }
+               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);
++              }
+       }
+ }
  
-       /* Calibrate the AGC */
-       REG_WRITE(ah, AR_PHY_AGC_CONTROL,
-@@ -979,7 +885,7 @@ static bool ar9003_hw_init_cal(struct at
-               return false;
+--- 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;
        }
  
--      if (AR_SREV_9485(ah))
-+      if (txiqcal_done)
-               ar9003_hw_tx_iq_cal_post_proc(ah);
+@@ -980,7 +987,6 @@ int ath_reset(struct ath_softc *sc, bool
+       del_timer_sync(&common->ani.timer);
  
-       /* Revert chainmasks to their original values before NF cal */
---- a/drivers/net/wireless/ath/ath9k/ar9003_phy.h
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.h
-@@ -548,15 +548,12 @@
+       ath9k_ps_wakeup(sc);
+-      spin_lock_bh(&sc->sc_pcu_lock);
  
- #define AR_PHY_TXGAIN_TABLE      (AR_SM_BASE + 0x300)
+       ieee80211_stop_queues(hw);
  
--#define AR_PHY_TX_IQCAL_START_9485            (AR_SM_BASE + 0x3c4)
--#define AR_PHY_TX_IQCAL_START_DO_CAL_9485     0x80000000
--#define AR_PHY_TX_IQCAL_START_DO_CAL_9485_S   31
--#define AR_PHY_TX_IQCAL_CONTROL_1_9485                (AR_SM_BASE + 0x3c8)
--#define AR_PHY_TX_IQCAL_STATUS_B0_9485                (AR_SM_BASE + 0x3f0)
--
--#define AR_PHY_TX_IQCAL_CONTROL_1   (AR_SM_BASE + 0x448)
--#define AR_PHY_TX_IQCAL_START       (AR_SM_BASE + 0x440)
--#define AR_PHY_TX_IQCAL_STATUS_B0   (AR_SM_BASE + 0x48c)
-+#define AR_PHY_TX_IQCAL_CONTROL_1   (AR_SM_BASE + AR_SREV_9485(ah) ? \
-+                                               0x3c8 : 0x448)
-+#define AR_PHY_TX_IQCAL_START       (AR_SM_BASE + AR_SREV_9485(ah) ? \
-+                                               0x3c4 : 0x440)
-+#define AR_PHY_TX_IQCAL_STATUS_B0   (AR_SM_BASE + AR_SREV_9485(ah) ? \
-+                                               0x3f0 : 0x48c)
- #define AR_PHY_TX_IQCAL_CORR_COEFF_B0(_i)    (AR_SM_BASE + \
-                                            (AR_SREV_9485(ah) ? \
-                                             0x3d0 : 0x450) + ((_i) << 2))
-@@ -758,10 +755,10 @@
- #define AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT   0x01000000
- #define AR_PHY_SPECTRAL_SCAN_SHORT_REPEAT_S 24
- #define AR_PHY_CHANNEL_STATUS_RX_CLEAR      0x00000004
--#define AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT             0x01fc0000
--#define AR_PHY_TX_IQCAQL_CONTROL_1_IQCORR_I_Q_COFF_DELPT_S                   18
--#define AR_PHY_TX_IQCAL_START_DO_CAL        0x00000001
--#define AR_PHY_TX_IQCAL_START_DO_CAL_S      0
-+#define AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT             0x01fc0000
-+#define AR_PHY_TX_IQCAL_CONTROL_1_IQCORR_I_Q_COFF_DELPT_S                   18
-+#define AR_PHY_TX_IQCAL_START_DO_CAL      0x00000001
-+#define AR_PHY_TX_IQCAL_START_DO_CAL_S            0
- #define AR_PHY_TX_IQCAL_STATUS_FAILED    0x00000001
- #define AR_PHY_CALIBRATED_GAINS_0      0x3e
---- a/drivers/net/wireless/ath/ath9k/ath9k.h
-+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
-@@ -453,6 +453,7 @@ void ath9k_btcoex_timer_pause(struct ath
- #define ATH_LED_PIN_DEF               1
- #define ATH_LED_PIN_9287              8
-+#define ATH_LED_PIN_9300              10
- #define ATH_LED_PIN_9485              6
- #ifdef CONFIG_MAC80211_LEDS
---- a/drivers/net/wireless/ath/ath9k/gpio.c
-+++ b/drivers/net/wireless/ath/ath9k/gpio.c
-@@ -46,6 +46,8 @@ void ath_init_leds(struct ath_softc *sc)
-                       sc->sc_ah->led_pin = ATH_LED_PIN_9287;
-               else if (AR_SREV_9485(sc->sc_ah))
-                       sc->sc_ah->led_pin = ATH_LED_PIN_9485;
-+              else if (AR_SREV_9300(sc->sc_ah))
-+                      sc->sc_ah->led_pin = ATH_LED_PIN_9300;
-               else
-                       sc->sc_ah->led_pin = ATH_LED_PIN_DEF;
+@@ -1023,7 +1029,6 @@ int ath_reset(struct ath_softc *sc, bool
        }
---- a/drivers/net/wireless/ath/ath9k/reg.h
-+++ b/drivers/net/wireless/ath/ath9k/reg.h
-@@ -868,6 +868,8 @@
- #define AR_SREV_9485_11(_ah) \
-       (AR_SREV_9485(_ah) && \
-        ((_ah)->hw_version.macRev == AR_SREV_REVISION_9485_11))
-+#define AR_SREV_9485_OR_LATER(_ah) \
-+      (((_ah)->hw_version.macVersion >= AR_SREV_VERSION_9485))
- #define AR_SREV_9285E_20(_ah) \
-     (AR_SREV_9285_12_OR_LATER(_ah) && \
---- a/net/mac80211/rx.c
-+++ b/net/mac80211/rx.c
-@@ -652,7 +652,7 @@ static void ieee80211_sta_reorder_releas
-  set_release_timer:
-               mod_timer(&tid_agg_rx->reorder_timer,
--                        tid_agg_rx->reorder_time[j] +
-+                        tid_agg_rx->reorder_time[j] + 1 +
-                         HT_RX_REORDER_BUF_TIMEOUT);
-       } else {
-               del_timer(&tid_agg_rx->reorder_timer);
---- a/drivers/net/wireless/ath/ath9k/calib.c
-+++ b/drivers/net/wireless/ath/ath9k/calib.c
-@@ -69,15 +69,21 @@ static void ath9k_hw_update_nfcal_hist_b
-                                             int16_t *nfarray)
- {
-       struct ath_common *common = ath9k_hw_common(ah);
-+      struct ieee80211_conf *conf = &common->hw->conf;
-       struct ath_nf_limits *limit;
-       struct ath9k_nfcal_hist *h;
-       bool high_nf_mid = false;
-+      u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
-       int i;
-       h = cal->nfCalHist;
-       limit = ath9k_hw_get_nf_limits(ah, ah->curchan);
-       for (i = 0; i < NUM_NF_READINGS; i++) {
-+              if (!(chainmask & (1 << i)) ||
-+                  ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf)))
-+                      continue;
-+
-               h[i].nfCalBuffer[h[i].currIndex] = nfarray[i];
  
-               if (++h[i].currIndex >= ATH9K_NF_CAL_HIST_MAX)
-@@ -225,6 +231,7 @@ void ath9k_hw_loadnf(struct ath_hw *ah, 
-       int32_t val;
-       u8 chainmask = (ah->rxchainmask << 3) | ah->rxchainmask;
-       struct ath_common *common = ath9k_hw_common(ah);
-+      struct ieee80211_conf *conf = &common->hw->conf;
-       s16 default_nf = ath9k_hw_get_default_nf(ah, chan);
+       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);
+       }
  
-       if (ah->caldata)
-@@ -234,6 +241,9 @@ void ath9k_hw_loadnf(struct ath_hw *ah, 
-               if (chainmask & (1 << i)) {
-                       s16 nfval;
+       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;
++      }
  
-+                      if ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))
-+                              continue;
-+
-                       if (h)
-                               nfval = h[i].privNF;
-                       else
-@@ -293,6 +303,9 @@ void ath9k_hw_loadnf(struct ath_hw *ah, 
-       ENABLE_REGWRITE_BUFFER(ah);
-       for (i = 0; i < NUM_NF_READINGS; i++) {
-               if (chainmask & (1 << i)) {
-+                      if ((i >= AR5416_MAX_CHAINS) && !conf_is_ht40(conf))
-+                              continue;
+-      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
 +
-                       val = REG_READ(ah, ah->nf_regs[i]);
-                       val &= 0xFFFFFE00;
-                       val |= (((u32) (-50) << 1) & 0x1ff);
+ 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;