package/kernel/ath10k-ct/patches/163-ath10k-fix-incorrect-multicast-broadcast-rate-settin.patch

   1 From: Pradeep kumar Chitrapu <pradeepc@codeaurora.org>
   2 Date: Mon, 10 Dec 2018 20:56:11 -0800
   3 Subject: ath10k: fix incorrect multicast/broadcast rate setting
   4
   5 Invalid rate code is sent to firmware when multicast rate value of 0 is
   6 sent to driver indicating disabled case, causing broken mesh path.
   7 so fix that.
   8
   9 Tested on QCA9984 with firmware 10.4-3.6.1-00827
  10
  11 Fixes: cd93b83ad92 ("ath10k: support for multicast rate control")
  12 Co-developed-by: Zhi Chen <zhichen@codeaurora.org>
  13 Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
  14 Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
  15
  16 Origin: other, https://patchwork.kernel.org/patch/10723033/
  17
  18 --- a/ath10k-4.19/mac.c
  19 +++ b/ath10k-4.19/mac.c
  20 @@ -6264,8 +6264,8 @@ static void ath10k_bss_info_changed(stru
  21         struct cfg80211_chan_def def;
  22         u32 vdev_param, pdev_param, slottime, preamble;
  23         u16 bitrate, hw_value;
  24 -       u8 rate, basic_rate_idx;
  25 -       int rateidx, ret = 0, hw_rate_code;
  26 +       u8 rate, basic_rate_idx, rateidx;
  27 +       int ret = 0, hw_rate_code, mcast_rate;
  28         enum nl80211_band band;
  29         const struct ieee80211_supported_band *sband;
  30
  31 @@ -6438,7 +6438,11 @@ static void ath10k_bss_info_changed(stru
  32         if (changed & BSS_CHANGED_MCAST_RATE &&
  33             !WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def))) {
  34                 band = def.chan->band;
  35 -               rateidx = vif->bss_conf.mcast_rate[band] - 1;
  36 +               mcast_rate = vif->bss_conf.mcast_rate[band];
  37 +               if (mcast_rate > 0)
  38 +                       rateidx = mcast_rate - 1;
  39 +               else
  40 +                       rateidx = ffs(vif->bss_conf.basic_rates) - 1;
  41
  42                 if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
  43                         rateidx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;