staging: wfx: drop wvif->enable_beacon

It seems that current code try to save calls to hif_beacon_transmit() by
keeping a copy of the previous value of bss_conf->enable_beacon.
However, hif_beacon_transmit() does not cost so much and mac80211
already take care to not send useless events.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200115135338.14374-24-Jerome.Pouiller@silabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/sta.c

@@ -843,12 +843,8 @@ void wfx_bss_info_changed(struct ieee80211_hw *hw,
 	}
 
 	if (changed & BSS_CHANGED_BEACON_ENABLED &&
-	    wvif->state != WFX_STATE_IBSS) {
-		if (wvif->enable_beacon != info->enable_beacon) {
-			hif_beacon_transmit(wvif, info->enable_beacon);
-			wvif->enable_beacon = info->enable_beacon;
-		}
-	}
+	    wvif->state != WFX_STATE_IBSS)
+		hif_beacon_transmit(wvif, info->enable_beacon);
 
 	if (changed & BSS_CHANGED_BEACON_INFO)
 		hif_set_beacon_wakeup_period(wvif, info->dtim_period,
@@ -1299,7 +1295,6 @@ void wfx_remove_interface(struct ieee80211_hw *hw,
 		}
 		memset(wvif->link_id_db, 0, sizeof(wvif->link_id_db));
 		wvif->sta_asleep_mask = 0;
-		wvif->enable_beacon = false;
 		wvif->mcast_tx = false;
 		wvif->aid0_bit_set = false;
 		wvif->mcast_buffered = false;

drivers/staging/wfx/wfx.h

@@ -99,7 +99,6 @@ struct wfx_vif {
 	struct work_struct	set_tim_work;
 
 	int			beacon_int;
-	bool			enable_beacon;
 	bool			filter_bssid;
 	bool			fwd_probe_req;
 	bool			disable_beacon_filter;