package/kernel/mac80211/patches/304-ath9k-Enable-multi-channel-properly.patch

   1 From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
   2 Date: Fri, 17 Oct 2014 07:40:09 +0530
   3 Subject: [PATCH] ath9k: Enable multi-channel properly
   4
   5 In MCC mode, currently the decision to enable
   6 the multi-channel state machine is done
   7 based on the association status if one of
   8 the interfaces assigned to a context is in
   9 station mode.
  10
  11 This allows the driver to switch to the other
  12 context before the current station is able to
  13 complete the 4-way handshake in case it is
  14 required and this causes problems.
  15
  16 Instead, enable multi-channel mode when the
  17 station moves to the authorized state. This
  18 disallows an early switch to the other channel.
  19
  20 Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
  21 ---
  22
  23 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
  24 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
  25 @@ -362,7 +362,7 @@ enum ath_chanctx_event {
  26         ATH_CHANCTX_EVENT_BEACON_SENT,
  27         ATH_CHANCTX_EVENT_TSF_TIMER,
  28         ATH_CHANCTX_EVENT_BEACON_RECEIVED,
  29 -       ATH_CHANCTX_EVENT_ASSOC,
  30 +       ATH_CHANCTX_EVENT_AUTHORIZED,
  31         ATH_CHANCTX_EVENT_SWITCH,
  32         ATH_CHANCTX_EVENT_ASSIGN,
  33         ATH_CHANCTX_EVENT_UNASSIGN,
  34 --- a/drivers/net/wireless/ath/ath9k/channel.c
  35 +++ b/drivers/net/wireless/ath/ath9k/channel.c
  36 @@ -171,7 +171,7 @@ static const char *chanctx_event_string(
  37                 case_rtn_string(ATH_CHANCTX_EVENT_BEACON_SENT);
  38                 case_rtn_string(ATH_CHANCTX_EVENT_TSF_TIMER);
  39                 case_rtn_string(ATH_CHANCTX_EVENT_BEACON_RECEIVED);
  40 -               case_rtn_string(ATH_CHANCTX_EVENT_ASSOC);
  41 +               case_rtn_string(ATH_CHANCTX_EVENT_AUTHORIZED);
  42                 case_rtn_string(ATH_CHANCTX_EVENT_SWITCH);
  43                 case_rtn_string(ATH_CHANCTX_EVENT_ASSIGN);
  44                 case_rtn_string(ATH_CHANCTX_EVENT_UNASSIGN);
  45 @@ -510,7 +510,7 @@ void ath_chanctx_event(struct ath_softc
  46
  47                 ath_chanctx_setup_timer(sc, tsf_time);
  48                 break;
  49 -       case ATH_CHANCTX_EVENT_ASSOC:
  50 +       case ATH_CHANCTX_EVENT_AUTHORIZED:
  51                 if (sc->sched.state != ATH_CHANCTX_STATE_FORCE_ACTIVE ||
  52                     avp->chanctx != sc->cur_chan)
  53                         break;
  54 --- a/drivers/net/wireless/ath/ath9k/main.c
  55 +++ b/drivers/net/wireless/ath/ath9k/main.c
  56 @@ -1569,6 +1569,13 @@ static int ath9k_sta_state(struct ieee80
  57                         "Remove station: %pM\n", sta->addr);
  58         }
  59
  60 +       if (ath9k_is_chanctx_enabled()) {
  61 +               if (old_state == IEEE80211_STA_ASSOC &&
  62 +                   new_state == IEEE80211_STA_AUTHORIZED)
  63 +                       ath_chanctx_event(sc, vif,
  64 +                                         ATH_CHANCTX_EVENT_AUTHORIZED);
  65 +       }
  66 +
  67         return ret;
  68  }
  69
  70 @@ -1761,12 +1768,6 @@ static void ath9k_bss_info_changed(struc
  71                 avp->assoc = bss_conf->assoc;
  72
  73                 ath9k_calculate_summary_state(sc, avp->chanctx);
  74 -
  75 -               if (ath9k_is_chanctx_enabled()) {
  76 -                       if (bss_conf->assoc)
  77 -                               ath_chanctx_event(sc, vif,
  78 -                                                 ATH_CHANCTX_EVENT_ASSOC);
  79 -               }
  80         }
  81
  82         if (changed & BSS_CHANGED_IBSS) {