mac80211: fix ad-hoc mode performance regression
[openwrt.git] / package / mac80211 / patches / 300-pending_work.patch
index 15e6bd0dca7cee3c9079a200450c4f1600d941b9..87a30efa0d69fbd60a8daaac4c87bcc840dae694 100644 (file)
---- a/drivers/net/wireless/ath/ath9k/ar9002_calib.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9002_calib.c
-@@ -829,7 +829,7 @@ static bool ar9002_hw_init_cal(struct at
-       if (AR_SREV_9271(ah)) {
-               if (!ar9285_hw_cl_cal(ah, chan))
-                       return false;
--      } else if (AR_SREV_9285_12_OR_LATER(ah)) {
-+      } else if (AR_SREV_9285(ah) && AR_SREV_9285_12_OR_LATER(ah)) {
-               if (!ar9285_hw_clc(ah, chan))
-                       return false;
-       } else {
---- a/drivers/net/wireless/ath/ath9k/ar9003_phy.c
-+++ b/drivers/net/wireless/ath/ath9k/ar9003_phy.c
-@@ -1381,3 +1381,25 @@ void ar9003_hw_bb_watchdog_dbg_info(stru
-               "==== BB update: done ====\n\n");
- }
- EXPORT_SYMBOL(ar9003_hw_bb_watchdog_dbg_info);
+--- a/drivers/net/wireless/ath/ath9k/ar9003_mac.c
++++ b/drivers/net/wireless/ath/ath9k/ar9003_mac.c
+@@ -510,7 +510,11 @@ int ath9k_hw_process_rxdesc_edma(struct 
+                */
+               if (rxsp->status11 & AR_CRCErr)
+                       rxs->rs_status |= ATH9K_RXERR_CRC;
+-              else if (rxsp->status11 & AR_PHYErr) {
++              else if (rxsp->status11 & AR_DecryptCRCErr)
++                      rxs->rs_status |= ATH9K_RXERR_DECRYPT;
++              else if (rxsp->status11 & AR_MichaelErr)
++                      rxs->rs_status |= ATH9K_RXERR_MIC;
++              if (rxsp->status11 & AR_PHYErr) {
+                       phyerr = MS(rxsp->status11, AR_PHYErrCode);
+                       /*
+                        * If we reach a point here where AR_PostDelimCRCErr is
+@@ -532,11 +536,7 @@ int ath9k_hw_process_rxdesc_edma(struct 
+                               rxs->rs_status |= ATH9K_RXERR_PHY;
+                               rxs->rs_phyerr = phyerr;
+                       }
+-
+-              } else if (rxsp->status11 & AR_DecryptCRCErr)
+-                      rxs->rs_status |= ATH9K_RXERR_DECRYPT;
+-              else if (rxsp->status11 & AR_MichaelErr)
+-                      rxs->rs_status |= ATH9K_RXERR_MIC;
++              };
+       }
+       if (rxsp->status11 & AR_KeyMiss)
+--- a/drivers/net/wireless/ath/carl9170/tx.c
++++ b/drivers/net/wireless/ath/carl9170/tx.c
+@@ -1236,6 +1236,7 @@ static bool carl9170_tx_ps_drop(struct a
+ {
+       struct ieee80211_sta *sta;
+       struct carl9170_sta_info *sta_info;
++      struct ieee80211_tx_info *tx_info;
+       rcu_read_lock();
+       sta = __carl9170_get_tx_sta(ar, skb);
+@@ -1243,12 +1244,13 @@ static bool carl9170_tx_ps_drop(struct a
+               goto out_rcu;
+       sta_info = (void *) sta->drv_priv;
+-      if (unlikely(sta_info->sleeping)) {
+-              struct ieee80211_tx_info *tx_info;
++      tx_info = IEEE80211_SKB_CB(skb);
++      if (unlikely(sta_info->sleeping) &&
++          !(tx_info->flags & (IEEE80211_TX_CTL_NO_PS_BUFFER |
++                              IEEE80211_TX_CTL_CLEAR_PS_FILT))) {
+               rcu_read_unlock();
+-              tx_info = IEEE80211_SKB_CB(skb);
+               if (tx_info->flags & IEEE80211_TX_CTL_AMPDU)
+                       atomic_dec(&ar->tx_ampdu_upload);
+--- a/drivers/net/wireless/iwlegacy/4965-mac.c
++++ b/drivers/net/wireless/iwlegacy/4965-mac.c
+@@ -1694,7 +1694,7 @@ il4965_tx_skb(struct il_priv *il, struct
+               sta_priv = (void *)sta->drv_priv;
+       if (sta_priv && sta_priv->asleep &&
+-          (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
++          (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)) {
+               /*
+                * This sends an asynchronous command to the device,
+                * but we can rely on it being processed before the
+--- a/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
++++ b/drivers/net/wireless/iwlwifi/iwl-agn-tx.c
+@@ -322,7 +322,7 @@ int iwlagn_tx_skb(struct iwl_priv *priv,
+               sta_priv = (void *)info->control.sta->drv_priv;
+       if (sta_priv && sta_priv->asleep &&
+-          (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)) {
++          (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)) {
+               /*
+                * This sends an asynchronous command to the device,
+                * but we can rely on it being processed before the
+@@ -331,6 +331,10 @@ int iwlagn_tx_skb(struct iwl_priv *priv,
+                * counter.
+                * For now set the counter to just 1 since we do not
+                * support uAPSD yet.
++               *
++               * FIXME: If we get two non-bufferable frames one
++               * after the other, we might only send out one of
++               * them because this is racy.
+                */
+               iwl_sta_modify_sleep_tx_count(priv, sta_id, 1);
+       }
+--- a/drivers/net/wireless/p54/txrx.c
++++ b/drivers/net/wireless/p54/txrx.c
+@@ -690,7 +690,7 @@ static void p54_tx_80211_header(struct p
+       if (!(info->flags & IEEE80211_TX_CTL_ASSIGN_SEQ))
+               *flags |= P54_HDR_FLAG_DATA_OUT_SEQNR;
+-      if (info->flags & IEEE80211_TX_CTL_POLL_RESPONSE)
++      if (info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER)
+               *flags |= P54_HDR_FLAG_DATA_OUT_NOCANCEL;
+       if (info->flags & IEEE80211_TX_CTL_CLEAR_PS_FILT)
+--- a/include/net/mac80211.h
++++ b/include/net/mac80211.h
+@@ -341,9 +341,9 @@ struct ieee80211_bss_conf {
+  *    used to indicate that a frame was already retried due to PS
+  * @IEEE80211_TX_INTFL_DONT_ENCRYPT: completely internal to mac80211,
+  *    used to indicate frame should not be encrypted
+- * @IEEE80211_TX_CTL_POLL_RESPONSE: This frame is a response to a poll
+- *    frame (PS-Poll or uAPSD) and should be sent although the station
+- *    is in powersave mode.
++ * @IEEE80211_TX_CTL_NO_PS_BUFFER: This frame is a response to a poll
++ *    frame (PS-Poll or uAPSD) or a non-bufferable MMPDU and must
++ *    be sent although the station is in powersave mode.
+  * @IEEE80211_TX_CTL_MORE_FRAMES: More frames will be passed to the
+  *    transmit function after the current frame, this can be used
+  *    by drivers to kick the DMA queue only if unset or when the
+@@ -399,7 +399,7 @@ enum mac80211_tx_control_flags {
+       IEEE80211_TX_INTFL_NEED_TXPROCESSING    = BIT(14),
+       IEEE80211_TX_INTFL_RETRIED              = BIT(15),
+       IEEE80211_TX_INTFL_DONT_ENCRYPT         = BIT(16),
+-      IEEE80211_TX_CTL_POLL_RESPONSE          = BIT(17),
++      IEEE80211_TX_CTL_NO_PS_BUFFER           = BIT(17),
+       IEEE80211_TX_CTL_MORE_FRAMES            = BIT(18),
+       IEEE80211_TX_INTFL_RETRANSMISSION       = BIT(19),
+       /* hole at 20, use later */
+@@ -425,7 +425,7 @@ enum mac80211_tx_control_flags {
+       IEEE80211_TX_CTL_SEND_AFTER_DTIM | IEEE80211_TX_CTL_AMPDU |           \
+       IEEE80211_TX_STAT_TX_FILTERED | IEEE80211_TX_STAT_ACK |               \
+       IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_STAT_AMPDU_NO_BACK |           \
+-      IEEE80211_TX_CTL_RATE_CTRL_PROBE | IEEE80211_TX_CTL_POLL_RESPONSE |   \
++      IEEE80211_TX_CTL_RATE_CTRL_PROBE | IEEE80211_TX_CTL_NO_PS_BUFFER |    \
+       IEEE80211_TX_CTL_MORE_FRAMES | IEEE80211_TX_CTL_LDPC |                \
+       IEEE80211_TX_CTL_STBC | IEEE80211_TX_STATUS_EOSP)
+@@ -1634,7 +1634,7 @@ void ieee80211_free_txskb(struct ieee802
+  * the station sends a PS-Poll or a uAPSD trigger frame, mac80211
+  * will inform the driver of this with the @allow_buffered_frames
+  * callback; this callback is optional. mac80211 will then transmit
+- * the frames as usual and set the %IEEE80211_TX_CTL_POLL_RESPONSE
++ * the frames as usual and set the %IEEE80211_TX_CTL_NO_PS_BUFFER
+  * on each frame. The last frame in the service period (or the only
+  * response to a PS-Poll) also has %IEEE80211_TX_STATUS_EOSP set to
+  * indicate that it ends the service period; as this frame must have
+@@ -1642,6 +1642,9 @@ void ieee80211_free_txskb(struct ieee802
+  * When TX status is reported for this frame, the service period is
+  * marked has having ended and a new one can be started by the peer.
+  *
++ * Additionally, non-bufferable MMPDUs can also be transmitted by
++ * mac80211 with the %IEEE80211_TX_CTL_NO_PS_BUFFER set in them.
++ *
+  * Another race condition can happen on some devices like iwlwifi
+  * when there are frames queued for the station and it wakes up
+  * or polls; the frames that are already queued could end up being
+@@ -2140,7 +2143,7 @@ enum ieee80211_frame_release_type {
+  * @allow_buffered_frames: Prepare device to allow the given number of frames
+  *    to go out to the given station. The frames will be sent by mac80211
+  *    via the usual TX path after this call. The TX information for frames
+- *    released will also have the %IEEE80211_TX_CTL_POLL_RESPONSE flag set
++ *    released will also have the %IEEE80211_TX_CTL_NO_PS_BUFFER flag set
+  *    and the last one will also have %IEEE80211_TX_STATUS_EOSP set. In case
+  *    frames from multiple TIDs are released and the driver might reorder
+  *    them between the TIDs, it must set the %IEEE80211_TX_STATUS_EOSP flag
+--- a/net/mac80211/agg-rx.c
++++ b/net/mac80211/agg-rx.c
+@@ -187,6 +187,8 @@ static void ieee80211_send_addba_resp(st
+               memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
+       else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
+               memcpy(mgmt->bssid, sdata->u.ibss.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);
+--- a/net/mac80211/agg-tx.c
++++ b/net/mac80211/agg-tx.c
+@@ -81,7 +81,8 @@ static void ieee80211_send_addba_request
+       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_MESH_POINT)
++          sdata->vif.type == NL80211_IFTYPE_MESH_POINT ||
++          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);
+@@ -471,6 +472,7 @@ int ieee80211_start_tx_ba_session(struct
+           sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+           sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+           sdata->vif.type != NL80211_IFTYPE_AP &&
++          sdata->vif.type != NL80211_IFTYPE_WDS &&
+           sdata->vif.type != NL80211_IFTYPE_ADHOC)
+               return -EINVAL;
+--- a/net/mac80211/debugfs_sta.c
++++ b/net/mac80211/debugfs_sta.c
+@@ -63,11 +63,11 @@ static ssize_t sta_flags_read(struct fil
+       test_sta_flag(sta, WLAN_STA_##flg) ? #flg "\n" : ""
+       int res = scnprintf(buf, sizeof(buf),
+-                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
++                          "%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s%s",
+                           TEST(AUTH), TEST(ASSOC), TEST(PS_STA),
+                           TEST(PS_DRIVER), TEST(AUTHORIZED),
+                           TEST(SHORT_PREAMBLE),
+-                          TEST(WME), TEST(WDS), TEST(CLEAR_PS_FILT),
++                          TEST(WME), TEST(CLEAR_PS_FILT),
+                           TEST(MFP), TEST(BLOCK_BA), TEST(PSPOLL),
+                           TEST(UAPSD), TEST(SP), TEST(TDLS_PEER),
+                           TEST(TDLS_PEER_AUTH), TEST(4ADDR_EVENT),
+--- a/net/mac80211/iface.c
++++ b/net/mac80211/iface.c
+@@ -178,7 +178,6 @@ static int ieee80211_do_open(struct net_
+ {
+       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;
+@@ -309,28 +308,6 @@ 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;
+-              }
+-
+-              sta_info_pre_move_state(sta, IEEE80211_STA_AUTH);
+-              sta_info_pre_move_state(sta, IEEE80211_STA_ASSOC);
+-              sta_info_pre_move_state(sta, IEEE80211_STA_AUTHORIZED);
+-
+-              res = sta_info_insert(sta);
+-              if (res) {
+-                      /* STA has been freed */
+-                      goto err_del_interface;
+-              }
+-
+-              rate_control_rate_init(sta);
+-      }
+-
+       /*
+        * set_multicast_list will be invoked by the networking core
+        * which will check whether any increments here were done in
+@@ -357,8 +334,7 @@ static int ieee80211_do_open(struct net_
+       netif_tx_start_all_queues(dev);
+       return 0;
+- err_del_interface:
+-      drv_remove_interface(local, sdata);
 +
-+void ar9003_hw_disable_phy_restart(struct ath_hw *ah)
+  err_stop:
+       if (!local->open_count)
+               drv_stop(local);
+@@ -722,6 +698,70 @@ static void ieee80211_if_setup(struct ne
+       dev->destructor = free_netdev;
+ }
++static void ieee80211_wds_rx_queued_mgmt(struct ieee80211_sub_if_data *sdata,
++                                       struct sk_buff *skb)
 +{
-+      u32 val;
-+
-+      /* While receiving unsupported rate frame rx state machine
-+       * gets into a state 0xb and if phy_restart happens in that
-+       * state, BB would go hang. If RXSM is in 0xb state after
-+       * first bb panic, ensure to disable the phy_restart.
-+       */
-+      if (!((MS(ah->bb_watchdog_last_status,
-+                AR_PHY_WATCHDOG_RX_OFDM_SM) == 0xb) ||
-+          ah->bb_hang_rx_ofdm))
++      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];
++
++      rx_status = IEEE80211_SKB_RXCB(skb);
++      mgmt = (struct ieee80211_mgmt *) skb->data;
++      stype = le16_to_cpu(mgmt->frame_control) & IEEE80211_FCTL_STYPE;
++
++      if (stype != IEEE80211_STYPE_BEACON)
 +              return;
 +
-+      ah->bb_hang_rx_ofdm = true;
-+      val = REG_READ(ah, AR_PHY_RESTART);
-+      val &= ~AR_PHY_RESTART_ENA;
++      baselen = (u8 *) mgmt->u.probe_resp.variable - (u8 *) mgmt;
++      if (baselen > skb->len)
++              return;
 +
-+      REG_WRITE(ah, AR_PHY_RESTART, val);
-+}
-+EXPORT_SYMBOL(ar9003_hw_disable_phy_restart);
---- a/drivers/net/wireless/ath/ath9k/hw.c
-+++ b/drivers/net/wireless/ath/ath9k/hw.c
-@@ -1555,9 +1555,12 @@ int ath9k_hw_reset(struct ath_hw *ah, st
-       if (ah->btcoex_hw.enabled)
-               ath9k_hw_btcoex_enable(ah);
--      if (AR_SREV_9300_20_OR_LATER(ah))
-+      if (AR_SREV_9300_20_OR_LATER(ah)) {
-               ar9003_hw_bb_watchdog_config(ah);
-+              ar9003_hw_disable_phy_restart(ah);
++      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;
 +      }
 +
-       ath9k_hw_apply_gpio_override(ah);
-       return 0;
---- a/drivers/net/wireless/ath/ath9k/hw.h
-+++ b/drivers/net/wireless/ath/ath9k/hw.h
-@@ -842,6 +842,7 @@ struct ath_hw {
-       u32 bb_watchdog_last_status;
-       u32 bb_watchdog_timeout_ms; /* in ms, 0 to disable */
-+      u8 bb_hang_rx_ofdm; /* true if bb hang due to rx_ofdm */
-       unsigned int paprd_target_power;
-       unsigned int paprd_training_power;
-@@ -990,6 +991,7 @@ void ar9002_hw_enable_wep_aggregation(st
- void ar9003_hw_bb_watchdog_config(struct ath_hw *ah);
- void ar9003_hw_bb_watchdog_read(struct ath_hw *ah);
- void ar9003_hw_bb_watchdog_dbg_info(struct ath_hw *ah);
-+void ar9003_hw_disable_phy_restart(struct ath_hw *ah);
- void ar9003_paprd_enable(struct ath_hw *ah, bool val);
- void ar9003_paprd_populate_single_table(struct ath_hw *ah,
-                                       struct ath9k_hw_cal_data *caldata,
---- a/drivers/net/wireless/ath/ath9k/main.c
-+++ b/drivers/net/wireless/ath/ath9k/main.c
-@@ -670,7 +670,8 @@ void ath9k_tasklet(unsigned long data)
-       u32 status = sc->intrstatus;
-       u32 rxmask;
--      if (status & ATH9K_INT_FATAL) {
-+      if ((status & ATH9K_INT_FATAL) ||
-+          (status & ATH9K_INT_BB_WATCHDOG)) {
-               ath_reset(sc, true);
-               return;
-       }
-@@ -737,6 +738,7 @@ irqreturn_t ath_isr(int irq, void *dev)
++      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(sdata, sband,
++                              elems.ht_cap_elem, &sta->sta.ht_cap);
++
++      if (elems.wmm_param)
++              set_sta_flag(sta, WLAN_STA_WME);
++
++      if (new) {
++              set_sta_flag(sta, 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)
  {
- #define SCHED_INTR (                          \
-               ATH9K_INT_FATAL |               \
-+              ATH9K_INT_BB_WATCHDOG |         \
-               ATH9K_INT_RXORN |               \
-               ATH9K_INT_RXEOL |               \
-               ATH9K_INT_RX |                  \
+       struct ieee80211_sub_if_data *sdata =
+@@ -826,6 +866,9 @@ 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
+@@ -2282,6 +2282,7 @@ ieee80211_rx_h_action(struct ieee80211_r
+                   sdata->vif.type != NL80211_IFTYPE_MESH_POINT &&
+                   sdata->vif.type != NL80211_IFTYPE_AP_VLAN &&
+                   sdata->vif.type != NL80211_IFTYPE_AP &&
++                  sdata->vif.type != NL80211_IFTYPE_WDS &&
+                   sdata->vif.type != NL80211_IFTYPE_ADHOC)
+                       break;
+@@ -2492,14 +2493,15 @@ 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_AUTH):
+       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_ASSOC_RESP):
+       case cpu_to_le16(IEEE80211_STYPE_REASSOC_RESP):
+@@ -2853,10 +2855,16 @@ 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.c
++++ b/net/mac80211/sta_info.c
+@@ -1050,7 +1050,7 @@ static void ieee80211_send_null_response
+        * exchange. Also set EOSP to indicate this packet
+        * ends the poll/service period.
+        */
+-      info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE |
++      info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER |
+                      IEEE80211_TX_STATUS_EOSP |
+                      IEEE80211_TX_CTL_REQ_TX_STATUS;
+@@ -1177,7 +1177,7 @@ ieee80211_sta_ps_deliver_response(struct
+                        * STA may still remain is PS mode after this frame
+                        * exchange.
+                        */
+-                      info->flags |= IEEE80211_TX_CTL_POLL_RESPONSE;
++                      info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
+                       /*
+                        * Use MoreData flag to indicate whether there are
+--- a/net/mac80211/sta_info.h
++++ b/net/mac80211/sta_info.h
+@@ -31,7 +31,6 @@
+  * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
+  *    frames.
+  * @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.
+@@ -62,7 +61,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_AUTHORIZED,
+       WLAN_STA_SHORT_PREAMBLE,
+       WLAN_STA_WME,
+-      WLAN_STA_WDS,
+       WLAN_STA_CLEAR_PS_FILT,
+       WLAN_STA_MFP,
+       WLAN_STA_BLOCK_BA,
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -448,18 +448,23 @@ ieee80211_tx_h_unicast_ps_buf(struct iee
+       struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)tx->skb->data;
+       struct ieee80211_local *local = tx->local;
+-      if (unlikely(!sta ||
+-                   ieee80211_is_probe_resp(hdr->frame_control) ||
+-                   ieee80211_is_auth(hdr->frame_control) ||
+-                   ieee80211_is_assoc_resp(hdr->frame_control) ||
+-                   ieee80211_is_reassoc_resp(hdr->frame_control)))
++      if (unlikely(!sta))
+               return TX_CONTINUE;
+       if (unlikely((test_sta_flag(sta, WLAN_STA_PS_STA) ||
+                     test_sta_flag(sta, WLAN_STA_PS_DRIVER)) &&
+-                   !(info->flags & IEEE80211_TX_CTL_POLL_RESPONSE))) {
++                   !(info->flags & IEEE80211_TX_CTL_NO_PS_BUFFER))) {
+               int ac = skb_get_queue_mapping(tx->skb);
++              /* only deauth, disassoc and action are bufferable MMPDUs */
++              if (ieee80211_is_mgmt(hdr->frame_control) &&
++                  !ieee80211_is_deauth(hdr->frame_control) &&
++                  !ieee80211_is_disassoc(hdr->frame_control) &&
++                  !ieee80211_is_action(hdr->frame_control)) {
++                      info->flags |= IEEE80211_TX_CTL_NO_PS_BUFFER;
++                      return TX_CONTINUE;
++              }
++
+ #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
+               printk(KERN_DEBUG "STA %pM aid %d: PS buffer for AC %d\n",
+                      sta->sta.addr, sta->sta.aid, ac);
+--- a/net/mac80211/ieee80211_i.h
++++ b/net/mac80211/ieee80211_i.h
+@@ -480,7 +480,7 @@ struct ieee80211_if_ibss {
+       bool control_port;
+-      u8 bssid[ETH_ALEN];
++      u8 bssid[ETH_ALEN] __aligned(2);
+       u8 ssid[IEEE80211_MAX_SSID_LEN];
+       u8 ssid_len, ie_len;
+       u8 *ie;