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From: Pradeep kumar Chitrapu <pradeepc@codeaurora.org>
Date: Mon, 10 Dec 2018 20:56:11 -0800
Subject: ath10k: fix incorrect multicast/broadcast rate setting
Invalid rate code is sent to firmware when multicast rate value of 0 is
sent to driver indicating disabled case, causing broken mesh path.
so fix that.
Tested on QCA9984 with firmware 10.4-3.6.1-00827
Fixes: cd93b83ad92 ("ath10k: support for multicast rate control")
Co-developed-by: Zhi Chen <zhichen@codeaurora.org>
Signed-off-by: Zhi Chen <zhichen@codeaurora.org>
Signed-off-by: Pradeep Kumar Chitrapu <pradeepc@codeaurora.org>
Origin: other, https://patchwork.kernel.org/patch/10723033/
--- a/ath10k-4.19/mac.c
+++ b/ath10k-4.19/mac.c
@@ -6421,8 +6421,8 @@ static void ath10k_bss_info_changed(stru
struct cfg80211_chan_def def;
u32 vdev_param, pdev_param, slottime, preamble;
u16 bitrate, hw_value;
- u8 rate, basic_rate_idx;
- int rateidx, ret = 0, hw_rate_code;
+ u8 rate, basic_rate_idx, rateidx;
+ int ret = 0, hw_rate_code, mcast_rate;
enum nl80211_band band;
const struct ieee80211_supported_band *sband;
@@ -6595,7 +6595,11 @@ static void ath10k_bss_info_changed(stru
if (changed & BSS_CHANGED_MCAST_RATE &&
!WARN_ON(ath10k_mac_vif_chan(arvif->vif, &def))) {
band = def.chan->band;
- rateidx = vif->bss_conf.mcast_rate[band] - 1;
+ mcast_rate = vif->bss_conf.mcast_rate[band];
+ if (mcast_rate > 0)
+ rateidx = mcast_rate - 1;
+ else
+ rateidx = ffs(vif->bss_conf.basic_rates) - 1;
if (ar->phy_capability & WHAL_WLAN_11A_CAPABILITY)
rateidx += ATH10K_MAC_FIRST_OFDM_RATE_IDX;
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