ath9k: Remove redundant beacon_interval

The variable appears in both ath_softc and ath_beacon_config.
The struct ath_beacon_config is embedded in ath_softc. The redundant
variable was added by commit id 57c4d7b4c4986037be51476b8e3025d5ba18d8b8.

Signed-off-by: Steve Brown <sbrown@cortland.com>
Reviewed-by: Mohammed Shafi <shafi.ath9k@gmail.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

4 files changed, 9 insertions, 7 deletions

diff --git a/drivers/net/wireless/ath/ath9k/ath9k.h b/drivers/net/wireless/ath/ath9k/ath9k.h
index 7c8409e53598..56dee3719f95 100644
--- a/drivers/net/wireless/ath/ath9k/ath9k.h
+++ b/drivers/net/wireless/ath/ath9k/ath9k.h
@@ -370,7 +370,7 @@ struct ath_vif {
 #define IEEE80211_MS_TO_TU(x)           (((x) * 1000) / 1024)
 
 struct ath_beacon_config {
-        u16 beacon_interval;
+        int beacon_interval;
         u16 listen_interval;
         u16 dtim_period;
         u16 bmiss_timeout;
@@ -633,8 +633,6 @@ struct ath_softc {
         struct ath9k_hw_cal_data caldata;
         int last_rssi;
 
-        int beacon_interval;
-
 #ifdef CONFIG_ATH9K_DEBUGFS
         struct ath9k_debug debug;
         spinlock_t nodes_lock;
diff --git a/drivers/net/wireless/ath/ath9k/beacon.c b/drivers/net/wireless/ath/ath9k/beacon.c
index fcb36abfc309..ed6e7d66fc38 100644
--- a/drivers/net/wireless/ath/ath9k/beacon.c
+++ b/drivers/net/wireless/ath/ath9k/beacon.c
@@ -226,6 +226,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
         struct ath_vif *avp;
         struct ath_buf *bf;
         struct sk_buff *skb;
+        struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
         __le64 tstamp;
 
         avp = (void *)vif->drv_priv;
@@ -282,7 +283,7 @@ int ath_beacon_alloc(struct ath_softc *sc, struct ieee80211_vif *vif)
                 u64 tsfadjust;
                 int intval;
 
-                intval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+                intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
 
                 /*
                  * Calculate the TSF offset for this beacon slot, i.e., the
@@ -346,6 +347,7 @@ void ath_beacon_return(struct ath_softc *sc, struct ath_vif *avp)
 void ath_beacon_tasklet(unsigned long data)
 {
         struct ath_softc *sc = (struct ath_softc *)data;
+        struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
         struct ath_hw *ah = sc->sc_ah;
         struct ath_common *common = ath9k_hw_common(ah);
         struct ath_buf *bf = NULL;
@@ -393,7 +395,7 @@ void ath_beacon_tasklet(unsigned long data)
          * on the tsf to safeguard against missing an swba.
          */
 
-        intval = sc->beacon_interval ? : ATH_DEFAULT_BINTVAL;
+        intval = cur_conf->beacon_interval ? : ATH_DEFAULT_BINTVAL;
 
         tsf = ath9k_hw_gettsf64(ah);
         tsftu = TSF_TO_TU(tsf>>32, tsf);
diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c
index 12e0ac688274..8469d7c8744a 100644
--- a/drivers/net/wireless/ath/ath9k/main.c
+++ b/drivers/net/wireless/ath/ath9k/main.c
@@ -1891,6 +1891,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
                                    u32 changed)
 {
         struct ath_softc *sc = hw->priv;
+        struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
         struct ath_hw *ah = sc->sc_ah;
         struct ath_common *common = ath9k_hw_common(ah);
         struct ath_vif *avp = (void *)vif->drv_priv;
@@ -1949,7 +1950,7 @@ static void ath9k_bss_info_changed(struct ieee80211_hw *hw,
                 ath9k_hw_stoptxdma(sc->sc_ah, sc->beacon.beaconq);
 
         if (changed & BSS_CHANGED_BEACON_INT) {
-                sc->beacon_interval = bss_conf->beacon_int;
+                cur_conf->beacon_interval = bss_conf->beacon_int;
                 /*
                  * In case of AP mode, the HW TSF has to be reset
                  * when the beacon interval changes.
diff --git a/drivers/net/wireless/ath/ath9k/xmit.c b/drivers/net/wireless/ath/ath9k/xmit.c
index 68a1c7612e9b..8d89aa958f1b 100644
--- a/drivers/net/wireless/ath/ath9k/xmit.c
+++ b/drivers/net/wireless/ath/ath9k/xmit.c
@@ -1055,6 +1055,7 @@ int ath_txq_update(struct ath_softc *sc, int qnum,
 int ath_cabq_update(struct ath_softc *sc)
 {
         struct ath9k_tx_queue_info qi;
+        struct ath_beacon_config *cur_conf = &sc->cur_beacon_conf;
         int qnum = sc->beacon.cabq->axq_qnum;
 
         ath9k_hw_get_txq_props(sc->sc_ah, qnum, &qi);
@@ -1066,7 +1067,7 @@ int ath_cabq_update(struct ath_softc *sc)
         else if (sc->config.cabqReadytime > ATH9K_READY_TIME_HI_BOUND)
                 sc->config.cabqReadytime = ATH9K_READY_TIME_HI_BOUND;
 
-        qi.tqi_readyTime = (sc->beacon_interval *
+        qi.tqi_readyTime = (cur_conf->beacon_interval *
                             sc->config.cabqReadytime) / 100;
         ath_txq_update(sc, qnum, &qi);