mac80211: fix ad-hoc mode performance regression
[openwrt/svn-archive/archive.git] / package / mac80211 / patches / 300-pending_work.patch
index 371e82bcaeae36d334304055b6daf2319756b29d..87a30efa0d69fbd60a8daaac4c87bcc840dae694 100644 (file)
---- a/include/net/cfg80211.h
-+++ b/include/net/cfg80211.h
-@@ -1122,6 +1122,7 @@ struct cfg80211_ibss_params {
-       u8 *ssid;
-       u8 *bssid;
-       struct ieee80211_channel *channel;
-+      enum nl80211_channel_type channel_type;
-       u8 *ie;
-       u8 ssid_len, ie_len;
-       u16 beacon_interval;
-@@ -3188,6 +3189,16 @@ void cfg80211_gtk_rekey_notify(struct ne
- void cfg80211_pmksa_candidate_notify(struct net_device *dev, int index,
-                                    const u8 *bssid, bool preauth, gfp_t gfp);
+--- 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;
++              };
+       }
  
-+/**
-+ * cfg80211_can_use_ext_chan - test if ht40 on extension channel can be used
-+ * @wiphy: the wiphy
-+ * @chan: main channel
-+ * @channel_type: HT mode
-+ */
-+bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
-+                                struct ieee80211_channel *chan,
-+                                enum nl80211_channel_type channel_type);
-+
- /* Logging, debugging and troubleshooting/diagnostic helpers. */
+       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();
  
- /* wiphy_printk helpers, similar to dev_printk */
+-              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
-@@ -180,6 +180,10 @@ static void ieee80211_send_addba_resp(st
-               memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
-       else if (sdata->vif.type == NL80211_IFTYPE_STATION)
+@@ -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);
-+      else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-+              memcpy(mgmt->bssid, sdata->u.ibss.bssid, 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
-@@ -77,10 +77,13 @@ static void ieee80211_send_addba_request
-       memcpy(mgmt->da, da, ETH_ALEN);
+@@ -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_AP_VLAN ||
+           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);
-+      else if (sdata->vif.type == NL80211_IFTYPE_ADHOC)
-+              memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
-       mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-                                         IEEE80211_STYPE_ACTION);
-@@ -397,7 +400,9 @@ int ieee80211_start_tx_ba_session(struct
-        */
-       if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+@@ -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_AP &&
-+          sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-+          sdata->vif.type != NL80211_IFTYPE_WDS)
+           sdata->vif.type != NL80211_IFTYPE_AP &&
++          sdata->vif.type != NL80211_IFTYPE_WDS &&
+           sdata->vif.type != NL80211_IFTYPE_ADHOC)
                return -EINVAL;
  
-       if (test_sta_flag(sta, WLAN_STA_BLOCK_BA)) {
 --- 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%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(ASSOC_AP),
+                           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));
---- a/net/mac80211/ht.c
-+++ b/net/mac80211/ht.c
-@@ -199,6 +199,8 @@ void ieee80211_send_delba(struct ieee802
-               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_ADHOC)
-+              memcpy(mgmt->bssid, sdata->u.ibss.bssid, ETH_ALEN);
-       mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
-                                         IEEE80211_STYPE_ACTION);
---- a/net/mac80211/ibss.c
-+++ b/net/mac80211/ibss.c
-@@ -77,6 +77,7 @@ static void __ieee80211_sta_join_ibss(st
-       struct cfg80211_bss *bss;
-       u32 bss_change;
-       u8 supp_rates[IEEE80211_MAX_SUPP_RATES];
-+      enum nl80211_channel_type channel_type;
-       lockdep_assert_held(&ifibss->mtx);
-@@ -104,8 +105,16 @@ static void __ieee80211_sta_join_ibss(st
-       sdata->drop_unencrypted = capability & WLAN_CAPABILITY_PRIVACY ? 1 : 0;
--      local->oper_channel = chan;
--      WARN_ON(!ieee80211_set_channel_type(local, sdata, NL80211_CHAN_NO_HT));
-+      channel_type = ifibss->channel_type;
-+      if (channel_type > NL80211_CHAN_HT20 &&
-+          !cfg80211_can_beacon_sec_chan(local->hw.wiphy, chan, channel_type))
-+              channel_type = NL80211_CHAN_HT20;
-+      if (!ieee80211_set_channel_type(local, sdata, channel_type)) {
-+              /* can only fail due to HT40+/- mismatch */
-+              channel_type = NL80211_CHAN_HT20;
-+              WARN_ON(!ieee80211_set_channel_type(local, sdata,
-+                                                  NL80211_CHAN_HT20));
-+      }
-       ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_CHANNEL);
-       sband = local->hw.wiphy->bands[chan->band];
-@@ -171,6 +180,18 @@ static void __ieee80211_sta_join_ibss(st
-               memcpy(skb_put(skb, ifibss->ie_len),
-                      ifibss->ie, ifibss->ie_len);
-+      /* add HT capability and information IEs */
-+      if (channel_type && sband->ht_cap.ht_supported) {
-+              pos = skb_put(skb, 4 +
-+                                 sizeof(struct ieee80211_ht_cap) +
-+                                 sizeof(struct ieee80211_ht_info));
-+              pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
-+              pos = ieee80211_ie_build_ht_info(pos,
-+                                               &sband->ht_cap,
-+                                               chan,
-+                                               channel_type);
-+      }
-+
-       if (local->hw.queues >= 4) {
-               pos = skb_put(skb, 9);
-               *pos++ = WLAN_EID_VENDOR_SPECIFIC;
-@@ -194,6 +215,7 @@ static void __ieee80211_sta_join_ibss(st
-       bss_change |= BSS_CHANGED_BEACON;
-       bss_change |= BSS_CHANGED_BEACON_ENABLED;
-       bss_change |= BSS_CHANGED_BASIC_RATES;
-+      bss_change |= BSS_CHANGED_HT;
-       bss_change |= BSS_CHANGED_IBSS;
-       sdata->vif.bss_conf.ibss_joined = true;
-       ieee80211_bss_info_change_notify(sdata, bss_change);
-@@ -266,6 +288,7 @@ static void ieee80211_rx_bss_info(struct
-       u64 beacon_timestamp, rx_timestamp;
-       u32 supp_rates = 0;
-       enum ieee80211_band band = rx_status->band;
-+      struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
-       if (elems->ds_params && elems->ds_params_len == 1)
-               freq = ieee80211_channel_to_frequency(elems->ds_params[0],
-@@ -275,7 +298,10 @@ static void ieee80211_rx_bss_info(struct
-       channel = ieee80211_get_channel(local->hw.wiphy, freq);
--      if (!channel || channel->flags & IEEE80211_CHAN_DISABLED)
-+      if (!channel ||
-+          channel->flags & (IEEE80211_CHAN_DISABLED ||
-+                            IEEE80211_CHAN_NO_IBSS ||
-+                            IEEE80211_CHAN_RADAR))
-               return;
-       if (sdata->vif.type == NL80211_IFTYPE_ADHOC &&
-@@ -313,8 +339,41 @@ static void ieee80211_rx_bss_info(struct
-                                               GFP_ATOMIC);
-               }
--              if (sta && elems->wmm_info)
--                      set_sta_flag(sta, WLAN_STA_WME);
-+              if (sta) {
-+                      if (elems->wmm_info)
-+                              set_sta_flag(sta, WLAN_STA_WME);
-+
-+                      /* we both use HT */
-+                      if (elems->ht_info_elem && elems->ht_cap_elem &&
-+                          sdata->u.ibss.channel_type) {
-+                              enum nl80211_channel_type channel_type =
-+                                      ieee80211_ht_info_to_channel_type(
-+                                                         elems->ht_info_elem);
-+                              struct ieee80211_sta_ht_cap sta_ht_cap_new;
-+
-+                              /*
-+                               * fall back to HT20 if we don't use or use
-+                               * the other extension channel
-+                               */
-+                              if (channel_type > NL80211_CHAN_HT20 &&
-+                                  channel_type != sdata->u.ibss.channel_type)
-+                                      channel_type = NL80211_CHAN_HT20;
-+
-+                              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
-+                                              elems->ht_cap_elem,
-+                                              &sta_ht_cap_new);
-+                              if (memcmp(&sta->sta.ht_cap, &sta_ht_cap_new,
-+                                         sizeof(sta_ht_cap_new))) {
-+                                      memcpy(&sta->sta.ht_cap,
-+                                             &sta_ht_cap_new,
-+                                             sizeof(sta_ht_cap_new));
-+                                      rate_control_rate_update(local, sband,
-+                                                      sta,
-+                                                      IEEE80211_RC_HT_CHANGED,
-+                                                      channel_type);
-+                              }
-+                      }
-+              }
-               rcu_read_unlock();
-       }
-@@ -896,10 +955,15 @@ int ieee80211_ibss_join(struct ieee80211
-       struct sk_buff *skb;
-       skb = dev_alloc_skb(sdata->local->hw.extra_tx_headroom +
--                          36 /* bitrates */ +
--                          34 /* SSID */ +
--                          3  /* DS params */ +
--                          4  /* IBSS params */ +
-+                          sizeof(struct ieee80211_hdr_3addr) +
-+                          12 /* struct ieee80211_mgmt.u.beacon */ +
-+                          2 + IEEE80211_MAX_SSID_LEN /* max SSID */ +
-+                          2 + 8 /* max Supported Rates */ +
-+                          3 /* max DS params */ +
-+                          4 /* IBSS params */ +
-+                          2 + (IEEE80211_MAX_SUPP_RATES - 8) +
-+                          2 + sizeof(struct ieee80211_ht_cap) +
-+                          2 + sizeof(struct ieee80211_ht_info) +
-                           params->ie_len);
-       if (!skb)
-               return -ENOMEM;
-@@ -920,13 +984,15 @@ int ieee80211_ibss_join(struct ieee80211
-       sdata->vif.bss_conf.beacon_int = params->beacon_interval;
-       sdata->u.ibss.channel = params->channel;
-+      sdata->u.ibss.channel_type = params->channel_type;
-       sdata->u.ibss.fixed_channel = params->channel_fixed;
-       /* fix ourselves to that channel now already */
-       if (params->channel_fixed) {
-               sdata->local->oper_channel = params->channel;
--              WARN_ON(!ieee80211_set_channel_type(sdata->local, sdata,
--                                                  NL80211_CHAN_NO_HT));
-+              if (!ieee80211_set_channel_type(sdata->local, sdata,
-+                                             params->channel_type))
-+                      return -EINVAL;
-       }
-       if (params->ie) {
---- a/net/mac80211/ieee80211_i.h
-+++ b/net/mac80211/ieee80211_i.h
-@@ -465,6 +465,7 @@ struct ieee80211_if_ibss {
-       u8 ssid_len, ie_len;
-       u8 *ie;
-       struct ieee80211_channel *channel;
-+      enum nl80211_channel_type channel_type;
-       unsigned long ibss_join_req;
-       /* probe response/beacon for IBSS */
-@@ -1339,6 +1340,12 @@ void ieee80211_recalc_smps(struct ieee80
- size_t ieee80211_ie_split(const u8 *ies, size_t ielen,
-                         const u8 *ids, int n_ids, size_t offset);
- size_t ieee80211_ie_split_vendor(const u8 *ies, size_t ielen, size_t offset);
-+u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband,
-+                            u16 cap);
-+u8 *ieee80211_ie_build_ht_info(u8 *pos,
-+                              struct ieee80211_sta_ht_cap *ht_cap,
-+                              struct ieee80211_channel *channel,
-+                              enum nl80211_channel_type channel_type);
- /* internal work items */
- void ieee80211_work_init(struct ieee80211_local *local);
-@@ -1367,6 +1374,8 @@ ieee80211_get_channel_mode(struct ieee80
- bool ieee80211_set_channel_type(struct ieee80211_local *local,
-                               struct ieee80211_sub_if_data *sdata,
-                               enum nl80211_channel_type chantype);
-+enum nl80211_channel_type
-+ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info);
- #ifdef CONFIG_MAC80211_NOINLINE
- #define debug_noinline noinline
+                           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_
        u32 changed = 0;
        int res;
        u32 hw_reconf_flags = 0;
-@@ -290,27 +289,6 @@ static int ieee80211_do_open(struct net_
+@@ -309,28 +308,6 @@ static int ieee80211_do_open(struct net_
  
        set_bit(SDATA_STATE_RUNNING, &sdata->state);
  
 -                      goto err_del_interface;
 -              }
 -
--              /* no atomic bitop required since STA is not live yet */
--              set_sta_flag(sta, WLAN_STA_AUTHORIZED);
+-              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) {
        /*
         * 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_
+@@ -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->vif);
+-      drv_remove_interface(local, sdata);
 +
   err_stop:
        if (!local->open_count)
                drv_stop(local);
-@@ -716,6 +693,70 @@ static void ieee80211_if_setup(struct ne
+@@ -722,6 +698,70 @@ static void ieee80211_if_setup(struct ne
        dev->destructor = free_netdev;
  }
  
 +      sta->sta.supp_rates[local->hw.conf.channel->band] = rates;
 +
 +      if (elems.ht_cap_elem)
-+              ieee80211_ht_cap_ie_to_sta_ht_cap(sband,
++              ieee80211_ht_cap_ie_to_sta_ht_cap(sdata, sband,
 +                              elems.ht_cap_elem, &sta->sta.ht_cap);
 +
 +      if (elems.wmm_param)
  static void ieee80211_iface_work(struct work_struct *work)
  {
        struct ieee80211_sub_if_data *sdata =
-@@ -820,6 +861,9 @@ static void ieee80211_iface_work(struct 
+@@ -826,6 +866,9 @@ static void ieee80211_iface_work(struct 
                                break;
                        ieee80211_mesh_rx_queued_mgmt(sdata, skb);
                        break;
                        break;
 --- a/net/mac80211/rx.c
 +++ b/net/mac80211/rx.c
-@@ -2211,7 +2211,9 @@ ieee80211_rx_h_action(struct ieee80211_r
-                */
-               if (sdata->vif.type != NL80211_IFTYPE_STATION &&
+@@ -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_AP &&
-+                  sdata->vif.type != NL80211_IFTYPE_ADHOC &&
-+                  sdata->vif.type != NL80211_IFTYPE_WDS)
+                   sdata->vif.type != NL80211_IFTYPE_AP &&
++                  sdata->vif.type != NL80211_IFTYPE_WDS &&
+                   sdata->vif.type != NL80211_IFTYPE_ADHOC)
                        break;
  
-               /* verify action_code is present */
-@@ -2426,13 +2428,14 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
+@@ -2492,14 +2493,15 @@ ieee80211_rx_h_mgmt(struct ieee80211_rx_
  
        if (!ieee80211_vif_is_mesh(&sdata->vif) &&
            sdata->vif.type != NL80211_IFTYPE_ADHOC &&
                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_DEAUTH):
-       case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
-@@ -2775,10 +2778,16 @@ static int prepare_for_handlers(struct i
+       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:
                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
-@@ -32,7 +32,6 @@
+@@ -31,7 +31,6 @@
+  * @WLAN_STA_SHORT_PREAMBLE: Station is capable of receiving short-preamble
   *    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.
-@@ -61,7 +60,6 @@ enum ieee80211_sta_info_flags {
+@@ -62,7 +61,6 @@ enum ieee80211_sta_info_flags {
+       WLAN_STA_AUTHORIZED,
        WLAN_STA_SHORT_PREAMBLE,
-       WLAN_STA_ASSOC_AP,
        WLAN_STA_WME,
 -      WLAN_STA_WDS,
        WLAN_STA_CLEAR_PS_FILT,
        WLAN_STA_MFP,
        WLAN_STA_BLOCK_BA,
---- a/net/mac80211/util.c
-+++ b/net/mac80211/util.c
-@@ -836,23 +836,8 @@ int ieee80211_build_preq_ies(struct ieee
-               offset = noffset;
-       }
--      if (sband->ht_cap.ht_supported) {
--              u16 cap = sband->ht_cap.cap;
--              __le16 tmp;
--
--              *pos++ = WLAN_EID_HT_CAPABILITY;
--              *pos++ = sizeof(struct ieee80211_ht_cap);
--              memset(pos, 0, sizeof(struct ieee80211_ht_cap));
--              tmp = cpu_to_le16(cap);
--              memcpy(pos, &tmp, sizeof(u16));
--              pos += sizeof(u16);
--              *pos++ = sband->ht_cap.ampdu_factor |
--                       (sband->ht_cap.ampdu_density <<
--                              IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
--              memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
--              pos += sizeof(sband->ht_cap.mcs);
--              pos += 2 + 4 + 1; /* ext info, BF cap, antsel */
--      }
-+      if (sband->ht_cap.ht_supported)
-+              pos = ieee80211_ie_build_ht_cap(pos, sband, sband->ht_cap.cap);
-       /*
-        * If adding more here, adjust code in main.c
-@@ -1443,3 +1428,100 @@ int ieee80211_add_ext_srates_ie(struct i
-       }
-       return 0;
- }
-+
-+u8 *ieee80211_ie_build_ht_cap(u8 *pos, struct ieee80211_supported_band *sband,
-+                            u16 cap)
-+{
-+      __le16 tmp;
-+
-+      *pos++ = WLAN_EID_HT_CAPABILITY;
-+      *pos++ = sizeof(struct ieee80211_ht_cap);
-+      memset(pos, 0, sizeof(struct ieee80211_ht_cap));
-+
-+      /* capability flags */
-+      tmp = cpu_to_le16(cap);
-+      memcpy(pos, &tmp, sizeof(u16));
-+      pos += sizeof(u16);
-+
-+      /* AMPDU parameters */
-+      *pos++ = sband->ht_cap.ampdu_factor |
-+               (sband->ht_cap.ampdu_density <<
-+                      IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
-+
-+      /* MCS set */
-+      memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
-+      pos += sizeof(sband->ht_cap.mcs);
-+
-+      /* extended capabilities */
-+      pos += sizeof(__le16);
-+
-+      /* BF capabilities */
-+      pos += sizeof(__le32);
-+
-+      /* antenna selection */
-+      pos += sizeof(u8);
-+
-+      return pos;
-+}
-+
-+u8 *ieee80211_ie_build_ht_info(u8 *pos,
-+                             struct ieee80211_sta_ht_cap *ht_cap,
-+                             struct ieee80211_channel *channel,
-+                             enum nl80211_channel_type channel_type)
-+{
-+      struct ieee80211_ht_info *ht_info;
-+      /* Build HT Information */
-+      *pos++ = WLAN_EID_HT_INFORMATION;
-+      *pos++ = sizeof(struct ieee80211_ht_info);
-+      ht_info = (struct ieee80211_ht_info *)pos;
-+      ht_info->control_chan =
-+                      ieee80211_frequency_to_channel(channel->center_freq);
-+      switch (channel_type) {
-+      case NL80211_CHAN_HT40MINUS:
-+              ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_BELOW;
-+              break;
-+      case NL80211_CHAN_HT40PLUS:
-+              ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_ABOVE;
-+              break;
-+      case NL80211_CHAN_HT20:
-+      default:
-+              ht_info->ht_param = IEEE80211_HT_PARAM_CHA_SEC_NONE;
-+              break;
-+      }
-+      if (ht_cap->cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
-+              ht_info->ht_param |= IEEE80211_HT_PARAM_CHAN_WIDTH_ANY;
-+      ht_info->operation_mode = 0x0000;
-+      ht_info->stbc_param = 0x0000;
-+
-+      /* It seems that Basic MCS set and Supported MCS set
-+         are identical for the first 10 bytes */
-+      memset(&ht_info->basic_set, 0, 16);
-+      memcpy(&ht_info->basic_set, &ht_cap->mcs, 10);
-+
-+      return pos + sizeof(struct ieee80211_ht_info);
-+}
-+
-+enum nl80211_channel_type
-+ieee80211_ht_info_to_channel_type(struct ieee80211_ht_info *ht_info)
-+{
-+      enum nl80211_channel_type channel_type;
-+
-+      if (!ht_info)
-+              return NL80211_CHAN_NO_HT;
-+
-+      switch (ht_info->ht_param & IEEE80211_HT_PARAM_CHA_SEC_OFFSET) {
-+      case IEEE80211_HT_PARAM_CHA_SEC_NONE:
-+              channel_type = NL80211_CHAN_HT20;
-+              break;
-+      case IEEE80211_HT_PARAM_CHA_SEC_ABOVE:
-+              channel_type = NL80211_CHAN_HT40PLUS;
-+              break;
-+      case IEEE80211_HT_PARAM_CHA_SEC_BELOW:
-+              channel_type = NL80211_CHAN_HT40MINUS;
-+              break;
-+      default:
-+              channel_type = NL80211_CHAN_NO_HT;
-+      }
-+
-+      return channel_type;
-+}
---- a/net/mac80211/work.c
-+++ b/net/mac80211/work.c
-@@ -118,7 +118,6 @@ static void ieee80211_add_ht_ie(struct s
-       u8 *pos;
-       u32 flags = channel->flags;
-       u16 cap = sband->ht_cap.cap;
--      __le16 tmp;
-       if (!sband->ht_cap.ht_supported)
-               return;
-@@ -169,34 +168,8 @@ static void ieee80211_add_ht_ie(struct s
-       }
-       /* reserve and fill IE */
--
-       pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
--      *pos++ = WLAN_EID_HT_CAPABILITY;
--      *pos++ = sizeof(struct ieee80211_ht_cap);
--      memset(pos, 0, sizeof(struct ieee80211_ht_cap));
--
--      /* capability flags */
--      tmp = cpu_to_le16(cap);
--      memcpy(pos, &tmp, sizeof(u16));
--      pos += sizeof(u16);
--
--      /* AMPDU parameters */
--      *pos++ = sband->ht_cap.ampdu_factor |
--               (sband->ht_cap.ampdu_density <<
--                      IEEE80211_HT_AMPDU_PARM_DENSITY_SHIFT);
--
--      /* MCS set */
--      memcpy(pos, &sband->ht_cap.mcs, sizeof(sband->ht_cap.mcs));
--      pos += sizeof(sband->ht_cap.mcs);
--
--      /* extended capabilities */
--      pos += sizeof(__le16);
--
--      /* BF capabilities */
--      pos += sizeof(__le32);
--
--      /* antenna selection */
--      pos += sizeof(u8);
-+      ieee80211_ie_build_ht_cap(pos, sband, cap);
- }
- static void ieee80211_send_assoc(struct ieee80211_sub_if_data *sdata,
---- a/net/wireless/chan.c
-+++ b/net/wireless/chan.c
-@@ -44,9 +44,9 @@ rdev_freq_to_chan(struct cfg80211_regist
-       return chan;
- }
--static bool can_beacon_sec_chan(struct wiphy *wiphy,
--                              struct ieee80211_channel *chan,
--                              enum nl80211_channel_type channel_type)
-+bool cfg80211_can_beacon_sec_chan(struct wiphy *wiphy,
-+                                struct ieee80211_channel *chan,
-+                                enum nl80211_channel_type channel_type)
- {
-       struct ieee80211_channel *sec_chan;
-       int diff;
-@@ -75,6 +75,7 @@ static bool can_beacon_sec_chan(struct w
-       return true;
- }
-+EXPORT_SYMBOL(cfg80211_can_beacon_sec_chan);
- int cfg80211_set_freq(struct cfg80211_registered_device *rdev,
-                     struct wireless_dev *wdev, int freq,
-@@ -109,8 +110,8 @@ int cfg80211_set_freq(struct cfg80211_re
-               switch (channel_type) {
-               case NL80211_CHAN_HT40PLUS:
-               case NL80211_CHAN_HT40MINUS:
--                      if (!can_beacon_sec_chan(&rdev->wiphy, chan,
--                                               channel_type)) {
-+                      if (!cfg80211_can_beacon_sec_chan(&rdev->wiphy, chan,
-+                                                        channel_type)) {
-                               printk(KERN_DEBUG
-                                      "cfg80211: Secondary channel not "
-                                      "allowed to initiate communication\n");
---- a/net/wireless/nl80211.c
-+++ b/net/wireless/nl80211.c
-@@ -4574,13 +4574,34 @@ static int nl80211_join_ibss(struct sk_b
-               ibss.ie_len = nla_len(info->attrs[NL80211_ATTR_IE]);
-       }
--      ibss.channel = ieee80211_get_channel(wiphy,
--              nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]));
-+      if (info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]) {
-+              enum nl80211_channel_type channel_type;
-+
-+              channel_type = nla_get_u32(
-+                              info->attrs[NL80211_ATTR_WIPHY_CHANNEL_TYPE]);
-+              if (channel_type > NL80211_CHAN_HT40PLUS)
-+                      return -EINVAL;
-+              ibss.channel_type = channel_type;
-+      } else {
-+              ibss.channel_type = NL80211_CHAN_NO_HT;
-+      }
+--- 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;
++              }
 +
-+      ibss.channel = rdev_freq_to_chan(rdev,
-+              nla_get_u32(info->attrs[NL80211_ATTR_WIPHY_FREQ]),
-+              ibss.channel_type);
-       if (!ibss.channel ||
-+          ibss.channel->flags & IEEE80211_CHAN_RADAR ||
-           ibss.channel->flags & IEEE80211_CHAN_NO_IBSS ||
-           ibss.channel->flags & IEEE80211_CHAN_DISABLED)
-               return -EINVAL;
+ #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 {
  
-+      /* Both channels should be able to initiate communication */
-+      if ((ibss.channel_type == NL80211_CHAN_HT40PLUS ||
-+           ibss.channel_type == NL80211_CHAN_HT40MINUS) &&
-+          !cfg80211_can_beacon_sec_chan(&rdev->wiphy, ibss.channel,
-+                                        ibss.channel_type))
-+              return -EINVAL;
-+
-       ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
-       ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
+       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;