package/mac80211/patches/553-ath9k_no_node_rssi.patch

   1 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
   2 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
   3 @@ -271,7 +271,6 @@ struct ath_node {
   4         struct ath_atx_ac ac[WME_NUM_AC];
   5         u16 maxampdu;
   6         u8 mpdudensity;
   7 -       int last_rssi;
   8  };
   9
  10  #define AGGR_CLEANUP         BIT(1)
  11 @@ -666,6 +665,7 @@ struct ath_wiphy {
  12         bool idle;
  13         int chan_idx;
  14         int chan_is_ht;
  15 +       int last_rssi;
  16  };
  17
  18  void ath9k_tasklet(unsigned long data);
  19 --- a/drivers/net/wireless/ath/ath9k/main.c
  20 +++ b/drivers/net/wireless/ath/ath9k/main.c
  21 @@ -553,7 +553,6 @@ static void ath_node_attach(struct ath_s
  22                 an->maxampdu = 1 << (IEEE80211_HT_MAX_AMPDU_FACTOR +
  23                                      sta->ht_cap.ampdu_factor);
  24                 an->mpdudensity = parse_mpdudensity(sta->ht_cap.ampdu_density);
  25 -               an->last_rssi = ATH_RSSI_DUMMY_MARKER;
  26         }
  27  }
  28
  29 @@ -822,9 +821,11 @@ static u32 ath_get_extchanmode(struct at
  30  }
  31
  32  static void ath9k_bss_assoc_info(struct ath_softc *sc,
  33 +                                struct ieee80211_hw *hw,
  34                                  struct ieee80211_vif *vif,
  35                                  struct ieee80211_bss_conf *bss_conf)
  36  {
  37 +       struct ath_wiphy *aphy = hw->priv;
  38         struct ath_hw *ah = sc->sc_ah;
  39         struct ath_common *common = ath9k_hw_common(ah);
  40
  41 @@ -848,6 +849,7 @@ static void ath9k_bss_assoc_info(struct
  42                 ath_beacon_config(sc, vif);
  43
  44                 /* Reset rssi stats */
  45 +               aphy->last_rssi = ATH_RSSI_DUMMY_MARKER;
  46                 sc->sc_ah->stats.avgbrssi = ATH_RSSI_DUMMY_MARKER;
  47
  48                 sc->sc_flags |= SC_OP_ANI_RUN;
  49 @@ -1969,7 +1971,7 @@ static void ath9k_bss_info_changed(struc
  50         if (changed & BSS_CHANGED_ASSOC) {
  51                 ath_print(common, ATH_DBG_CONFIG, "BSS Changed ASSOC %d\n",
  52                         bss_conf->assoc);
  53 -               ath9k_bss_assoc_info(sc, vif, bss_conf);
  54 +               ath9k_bss_assoc_info(sc, hw, vif, bss_conf);
  55         }
  56
  57         mutex_unlock(&sc->mutex);
  58 --- a/drivers/net/wireless/ath/ath9k/recv.c
  59 +++ b/drivers/net/wireless/ath/ath9k/recv.c
  60 @@ -960,36 +960,23 @@ static void ath9k_process_rssi(struct at
  61                                struct ieee80211_hdr *hdr,
  62                                struct ath_rx_status *rx_stats)
  63  {
  64 +       struct ath_wiphy *aphy = hw->priv;
  65         struct ath_hw *ah = common->ah;
  66 -       struct ieee80211_sta *sta;
  67 -       struct ath_node *an;
  68 -       int last_rssi = ATH_RSSI_DUMMY_MARKER;
  69 +       int last_rssi;
  70         __le16 fc;
  71
  72 -       fc = hdr->frame_control;
  73 +       if (ah->opmode != NL80211_IFTYPE_STATION)
  74 +               return;
  75
  76 -       rcu_read_lock();
  77 -       /*
  78 -        * XXX: use ieee80211_find_sta! This requires quite a bit of work
  79 -        * under the current ath9k virtual wiphy implementation as we have
  80 -        * no way of tying a vif to wiphy. Typically vifs are attached to
  81 -        * at least one sdata of a wiphy on mac80211 but with ath9k virtual
  82 -        * wiphy you'd have to iterate over every wiphy and each sdata.
  83 -        */
  84 -       if (is_multicast_ether_addr(hdr->addr1))
  85 -               sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr2, NULL);
  86 -       else
  87 -               sta = ieee80211_find_sta_by_ifaddr(hw, hdr->addr2, hdr->addr1);
  88 +       fc = hdr->frame_control;
  89 +       if (!ieee80211_is_beacon(fc) ||
  90 +           compare_ether_addr(hdr->addr3, common->curbssid))
  91 +               return;
  92
  93 -       if (sta) {
  94 -               an = (struct ath_node *) sta->drv_priv;
  95 -               if (rx_stats->rs_rssi != ATH9K_RSSI_BAD &&
  96 -                  !rx_stats->rs_moreaggr)
  97 -                       ATH_RSSI_LPF(an->last_rssi, rx_stats->rs_rssi);
  98 -               last_rssi = an->last_rssi;
  99 -       }
 100 -       rcu_read_unlock();
 101 +       if (rx_stats->rs_rssi != ATH9K_RSSI_BAD && !rx_stats->rs_moreaggr)
 102 +               ATH_RSSI_LPF(aphy->last_rssi, rx_stats->rs_rssi);
 103
 104 +       last_rssi = aphy->last_rssi;
 105         if (likely(last_rssi != ATH_RSSI_DUMMY_MARKER))
 106                 rx_stats->rs_rssi = ATH_EP_RND(last_rssi,
 107                                               ATH_RSSI_EP_MULTIPLIER);
 108 @@ -997,8 +984,7 @@ static void ath9k_process_rssi(struct at
 109                 rx_stats->rs_rssi = 0;
 110
 111         /* Update Beacon RSSI, this is used by ANI. */
 112 -       if (ieee80211_is_beacon(fc))
 113 -               ah->stats.avgbrssi = rx_stats->rs_rssi;
 114 +       ah->stats.avgbrssi = rx_stats->rs_rssi;
 115  }
 116
 117  /*
 118 --- a/drivers/net/wireless/ath/ath9k/init.c
 119 +++ b/drivers/net/wireless/ath/ath9k/init.c
 120 @@ -729,6 +729,7 @@ int ath9k_init_device(u16 devid, struct
 121                     const struct ath_bus_ops *bus_ops)
 122  {
 123         struct ieee80211_hw *hw = sc->hw;
 124 +       struct ath_wiphy *aphy = hw->priv;
 125         struct ath_common *common;
 126         struct ath_hw *ah;
 127         int error = 0;
 128 @@ -781,6 +782,7 @@ int ath9k_init_device(u16 devid, struct
 129         INIT_WORK(&sc->chan_work, ath9k_wiphy_chan_work);
 130         INIT_DELAYED_WORK(&sc->wiphy_work, ath9k_wiphy_work);
 131         sc->wiphy_scheduler_int = msecs_to_jiffies(500);
 132 +       aphy->last_rssi = ATH_RSSI_DUMMY_MARKER;
 133
 134         ath_init_leds(sc);
 135         ath_start_rfkill_poll(sc);
 136 --- a/drivers/net/wireless/ath/ath9k/virtual.c
 137 +++ b/drivers/net/wireless/ath/ath9k/virtual.c
 138 @@ -107,6 +107,7 @@ int ath9k_wiphy_add(struct ath_softc *sc
 139         aphy->sc = sc;
 140         aphy->hw = hw;
 141         sc->sec_wiphy[i] = aphy;
 142 +       aphy->last_rssi = ATH_RSSI_DUMMY_MARKER;
 143         spin_unlock_bh(&sc->wiphy_lock);
 144
 145         memcpy(addr, common->macaddr, ETH_ALEN);