package/mac80211/patches/540-ath9k_fix_reported_signal_strength.patch

   1 --- a/drivers/net/wireless/ath/ath9k/recv.c
   2 +++ b/drivers/net/wireless/ath/ath9k/recv.c
   3 @@ -956,6 +956,9 @@ static int ath9k_rx_skb_preprocess(struc
   4                                    struct ieee80211_rx_status *rx_status,
   5                                    bool *decrypt_error)
   6  {
   7 +       struct ath_hw *ah = common->ah;
   8 +       int noise;
   9 +
  10         memset(rx_status, 0, sizeof(struct ieee80211_rx_status));
  11
  12         /*
  13 @@ -976,7 +979,13 @@ static int ath9k_rx_skb_preprocess(struc
  14
  15         rx_status->band = hw->conf.channel->band;
  16         rx_status->freq = hw->conf.channel->center_freq;
  17 -       rx_status->signal = ATH_DEFAULT_NOISE_FLOOR + rx_stats->rs_rssi;
  18 +
  19 +       if (ah->curchan && ah->curchan->noisefloor)
  20 +               noise = ah->curchan->noisefloor;
  21 +       else
  22 +               noise = ATH_DEFAULT_NOISE_FLOOR;
  23 +
  24 +       rx_status->signal = noise + rx_stats->rs_rssi;
  25         rx_status->antenna = rx_stats->rs_antenna;
  26         rx_status->flag |= RX_FLAG_MACTIME_MPDU;
  27