package/kernel/mac80211/patches/316-ath9k-Add-a-function-to-check-for-an-active-GO.patch

   1 From: Sujith Manoharan <c_manoha@qca.qualcomm.com>
   2 Date: Fri, 17 Oct 2014 07:40:21 +0530
   3 Subject: [PATCH] ath9k: Add a function to check for an active GO
   4
   5 Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
   6 ---
   7
   8 --- a/drivers/net/wireless/ath/ath9k/ath9k.h
   9 +++ b/drivers/net/wireless/ath/ath9k/ath9k.h
  10 @@ -469,6 +469,7 @@ void ath_chanctx_set_next(struct ath_sof
  11  void ath_offchannel_next(struct ath_softc *sc);
  12  void ath_scan_complete(struct ath_softc *sc, bool abort);
  13  void ath_roc_complete(struct ath_softc *sc, bool abort);
  14 +struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc);
  15
  16  #else
  17
  18 --- a/drivers/net/wireless/ath/ath9k/channel.c
  19 +++ b/drivers/net/wireless/ath/ath9k/channel.c
  20 @@ -146,6 +146,36 @@ void ath_chanctx_set_channel(struct ath_
  21
  22  #ifdef CPTCFG_ATH9K_CHANNEL_CONTEXT
  23
  24 +/*************/
  25 +/* Utilities */
  26 +/*************/
  27 +
  28 +struct ath_chanctx* ath_is_go_chanctx_present(struct ath_softc *sc)
  29 +{
  30 +       struct ath_chanctx *ctx;
  31 +       struct ath_vif *avp;
  32 +       struct ieee80211_vif *vif;
  33 +
  34 +       spin_lock_bh(&sc->chan_lock);
  35 +
  36 +       ath_for_each_chanctx(sc, ctx) {
  37 +               if (!ctx->active)
  38 +                       continue;
  39 +
  40 +               list_for_each_entry(avp, &ctx->vifs, list) {
  41 +                       vif = avp->vif;
  42 +
  43 +                       if (ieee80211_vif_type_p2p(vif) == NL80211_IFTYPE_P2P_GO) {
  44 +                               spin_unlock_bh(&sc->chan_lock);
  45 +                               return ctx;
  46 +                       }
  47 +               }
  48 +       }
  49 +
  50 +       spin_unlock_bh(&sc->chan_lock);
  51 +       return NULL;
  52 +}
  53 +
  54  /**********************************************************/
  55  /* Functions to handle the channel context state machine. */
  56  /**********************************************************/