ath9k: Fix 'offchannel' in ath_softc

Finally move the 'offchannel' instance in ath_softc
inside a CONFIG_ATH9K_CHANNEL_CONTEXT cage. The offchannel
usage in ath9k_calculate_iter_data() is closed off with
an ifdef for now, since the state/opmode calculation is
common for both the channel context mode and the normal mode.
Signed-off-by: Sujith Manoharan <c_manoha@qca.qualcomm.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

drivers/net/wireless/ath/ath9k/ath9k.h

@@ -925,6 +925,7 @@ struct ath_softc {
 	struct ath_gen_timer *p2p_ps_timer;
 	struct ath_vif *p2p_ps_vif;
 	struct ath_chanctx_sched sched;
+	struct ath_offchannel offchannel;
 #endif
 
 	unsigned long driver_data;
@@ -948,7 +949,6 @@ struct ath_softc {
 	struct ath_chanctx *cur_chan;
 	struct ath_chanctx *next_chan;
 	spinlock_t chan_lock;
-	struct ath_offchannel offchannel;
 
 #ifdef CONFIG_MAC80211_LEDS
 	bool led_registered;

drivers/net/wireless/ath/ath9k/main.c

@@ -958,6 +958,7 @@ void ath9k_calculate_iter_data(struct ath_softc *sc,
 	list_for_each_entry(avp, &ctx->vifs, list)
 		ath9k_vif_iter(iter_data, avp->vif->addr, avp->vif);
 
+#ifdef CONFIG_ATH9K_CHANNEL_CONTEXT
 	if (ctx == &sc->offchannel.chan) {
 		struct ieee80211_vif *vif;
 
@@ -970,6 +971,7 @@ void ath9k_calculate_iter_data(struct ath_softc *sc,
 			ath9k_vif_iter(iter_data, vif->addr, vif);
 		iter_data->beacons = false;
 	}
+#endif
 }
 
 static void ath9k_set_assoc_state(struct ath_softc *sc,