wl12xx: move ba fields into wlvif

move ba_fields into the per-interface data, rather than
being global.

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Luciano Coelho <coelho@ti.com>
diff --git a/drivers/net/wireless/wl12xx/event.c b/drivers/net/wireless/wl12xx/event.c
index 775ad95..8c31274 100644
--- a/drivers/net/wireless/wl12xx/event.c
+++ b/drivers/net/wireless/wl12xx/event.c
@@ -184,9 +184,9 @@
 static void wl1271_stop_ba_event(struct wl1271 *wl, struct wl12xx_vif *wlvif)
 {
 	if (wlvif->bss_type != BSS_TYPE_AP_BSS) {
-		if (!wl->ba_rx_bitmap)
+		if (!wlvif->sta.ba_rx_bitmap)
 			return;
-		ieee80211_stop_rx_ba_session(wl->vif, wl->ba_rx_bitmap,
+		ieee80211_stop_rx_ba_session(wl->vif, wlvif->sta.ba_rx_bitmap,
 					     wl->vif->bss_conf.bssid);
 	} else {
 		int i;
@@ -306,9 +306,9 @@
 		wl1271_debug(DEBUG_EVENT, "BA_SESSION_RX_CONSTRAINT_EVENT_ID. "
 			     "ba_allowed = 0x%x", mbox->rx_ba_allowed);
 
-		wl->ba_allowed = !!mbox->rx_ba_allowed;
+		wlvif->ba_allowed = !!mbox->rx_ba_allowed;
 
-		if (wl->vif && !wl->ba_allowed)
+		if (wl->vif && !wlvif->ba_allowed)
 			wl1271_stop_ba_event(wl, wlvif);
 	}