ath9k: Few clean ups in beacon config parameters

Some minor clean ups in assigning values to beacon config parameters

Signed-off-by: Mohammed Shafi Shajakhan <mshajakhan@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index 5e108c0..385ba03 100644 (file)
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -566,8 +566,6 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
         * last beacon we received (which may be none).
         */
        dtimperiod = conf->dtim_period;
-       if (dtimperiod <= 0)            /* NB: 0 if not known */
-               dtimperiod = 1;
        dtimcount = conf->dtim_count;
        if (dtimcount >= dtimperiod)    /* NB: sanity check */
                dtimcount = 0;
@@ -575,8 +573,6 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
        cfpcount = 0;
 
        sleepduration = conf->listen_interval * intval;
-       if (sleepduration <= 0)
-               sleepduration = intval;
 
        /*
         * Pull nexttbtt forward to reflect the current
@@ -662,8 +658,7 @@ static void ath_beacon_config_sta(struct ath_softc *sc,
 }
 
 static void ath_beacon_config_adhoc(struct ath_softc *sc,
-                                   struct ath_beacon_config *conf,
-                                   struct ieee80211_vif *vif)
+                                   struct ath_beacon_config *conf)
 {
        struct ath_hw *ah = sc->sc_ah;
        struct ath_common *common = ath9k_hw_common(ah);
@@ -718,18 +713,17 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
        /* Setup the beacon configuration parameters */
        if (vif) {
                struct ieee80211_bss_conf *bss_conf = &vif->bss_conf;
-
                iftype = vif->type;
-
                cur_conf->beacon_interval = bss_conf->beacon_int;
                cur_conf->dtim_period = bss_conf->dtim_period;
+       } else {
+               iftype = sc->sc_ah->opmode;
+       }
+
                cur_conf->listen_interval = 1;
                cur_conf->dtim_count = 1;
                cur_conf->bmiss_timeout =
                        ATH_DEFAULT_BMISS_LIMIT * cur_conf->beacon_interval;
-       } else {
-               iftype = sc->sc_ah->opmode;
-       }
 
        /*
         * It looks like mac80211 may end up using beacon interval of zero in
@@ -740,13 +734,20 @@ void ath_beacon_config(struct ath_softc *sc, struct ieee80211_vif *vif)
        if (cur_conf->beacon_interval == 0)
                cur_conf->beacon_interval = 100;
 
+       /*
+        * Some times we dont parse dtim period from mac80211, in that case
+        * use a default value
+        */
+       if (cur_conf->dtim_period == 0)
+               cur_conf->dtim_period = 1;
+
        switch (iftype) {
        case NL80211_IFTYPE_AP:
                ath_beacon_config_ap(sc, cur_conf);
                break;
        case NL80211_IFTYPE_ADHOC:
        case NL80211_IFTYPE_MESH_POINT:
-               ath_beacon_config_adhoc(sc, cur_conf, vif);
+               ath_beacon_config_adhoc(sc, cur_conf);
                break;
        case NL80211_IFTYPE_STATION:
                ath_beacon_config_sta(sc, cur_conf);