package/kernel/mac80211/patches/368-ath10k-fix-recent-bandwidth-conversion-bug.patch

   1 From: Christian Lamparter <chunkeey@gmail.com>
   2 Date: Wed, 1 Nov 2017 21:01:57 +0100
   3 Subject: [PATCH] ath10k: fix recent bandwidth conversion bug
   4
   5 The commit "cfg80211: make RATE_INFO_BW_20 the default" changed
   6 the index of RATE_INFO_BW_20, but the updates to ath10k missed
   7 the special bandwidth calculation case in
   8 ath10k_update_per_peer_tx_stats().
   9
  10 Fixes: 842be75c77cb ("cfg80211: make RATE_INFO_BW_20 the default")
  11 Signed-off-by: Christian Lamparter <chunkeey@gmail.com>
  12 Patchwork-Id: 10037035
  13 Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
  14 ---
  15
  16 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c
  17 +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
  18 @@ -592,6 +592,9 @@ struct amsdu_subframe_hdr {
  19
  20  #define GROUP_ID_IS_SU_MIMO(x) ((x) == 0 || (x) == 63)
  21
  22 +static const u8 ath10k_bw_to_mac80211[] = { RATE_INFO_BW_20, RATE_INFO_BW_40,
  23 +       RATE_INFO_BW_80, RATE_INFO_BW_160 };
  24 +
  25  static void ath10k_htt_rx_h_rates(struct ath10k *ar,
  26                                   struct ieee80211_rx_status *status,
  27                                   struct htt_rx_desc *rxd)
  28 @@ -694,23 +697,7 @@ static void ath10k_htt_rx_h_rates(struct
  29                 if (sgi)
  30                         status->enc_flags |= RX_ENC_FLAG_SHORT_GI;
  31
  32 -               switch (bw) {
  33 -               /* 20MHZ */
  34 -               case 0:
  35 -                       break;
  36 -               /* 40MHZ */
  37 -               case 1:
  38 -                       status->bw = RATE_INFO_BW_40;
  39 -                       break;
  40 -               /* 80MHZ */
  41 -               case 2:
  42 -                       status->bw = RATE_INFO_BW_80;
  43 -                       break;
  44 -               case 3:
  45 -                       status->bw = RATE_INFO_BW_160;
  46 -                       break;
  47 -               }
  48 -
  49 +               status->bw = ath10k_bw_to_mac80211[bw];
  50                 status->encoding = RX_ENC_VHT;
  51                 break;
  52         default:
  53 @@ -2297,7 +2284,7 @@ ath10k_update_per_peer_tx_stats(struct a
  54                 arsta->txrate.flags |= RATE_INFO_FLAGS_SHORT_GI;
  55
  56         arsta->txrate.nss = txrate.nss;
  57 -       arsta->txrate.bw = txrate.bw + RATE_INFO_BW_20;
  58 +       arsta->txrate.bw = ath10k_bw_to_mac80211[txrate.bw];
  59  }
  60
  61  static void ath10k_htt_fetch_peer_stats(struct ath10k *ar,