package/kernel/mac80211/patches/subsys/373-mac80211-minstrel-fix-using-short-preamble-CCK-rates.patch

   1 From: Felix Fietkau <nbd@nbd.name>
   2 Date: Sat, 10 Feb 2018 13:43:07 +0100
   3 Subject: [PATCH] mac80211: minstrel: fix using short preamble CCK rates on
   4  HT clients
   5
   6 mi->supported[MINSTREL_CCK_GROUP] needs to be updated
   7
   8 Fixes: 782dda00ab8e ("mac80211: minstrel_ht: move short preamble check out of get_rate")
   9 Signed-off-by: Felix Fietkau <nbd@nbd.name>
  10 ---
  11
  12 Index: backports-v4.18-rc7/net/mac80211/rc80211_minstrel_ht.c
  13 ===================================================================
  14 --- backports-v4.18-rc7.orig/net/mac80211/rc80211_minstrel_ht.c
  15 +++ backports-v4.18-rc7/net/mac80211/rc80211_minstrel_ht.c
  16 @@ -1135,7 +1135,6 @@ minstrel_ht_update_caps(void *priv, stru
  17         struct ieee80211_mcs_info *mcs = &sta->ht_cap.mcs;
  18         u16 ht_cap = sta->ht_cap.cap;
  19         struct ieee80211_sta_vht_cap *vht_cap = &sta->vht_cap;
  20 -       struct sta_info *sinfo = container_of(sta, struct sta_info, sta);
  21         int use_vht;
  22         int n_supported = 0;
  23         int ack_dur;
  24 @@ -1267,8 +1266,7 @@ minstrel_ht_update_caps(void *priv, stru
  25         if (!n_supported)
  26                 goto use_legacy;
  27
  28 -       if (test_sta_flag(sinfo, WLAN_STA_SHORT_PREAMBLE))
  29 -               mi->cck_supported_short |= mi->cck_supported_short << 4;
  30 +       mi->supported[MINSTREL_CCK_GROUP] |= mi->cck_supported_short << 4;
  31
  32         /* create an initial rate table with the lowest supported rates */
  33         minstrel_ht_update_stats(mp, mi);