qtnfmac: do not initialize per-MAC data multiple times

Several members of pwr-MAC structure are re-initialized several times
together with per-VIF initialization. Fix that and simplify the code.
Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>

drivers/net/wireless/quantenna/qtnfmac/core.c

@@ -370,6 +370,7 @@ static void qtnf_mac_scan_timeout(struct work_struct *work)
 static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus,
 					     unsigned int macid)
 {
+	struct qtnf_vif *vif;
 	struct wiphy *wiphy;
 	struct qtnf_wmac *mac;
 	unsigned int i;
@@ -382,18 +383,20 @@ static struct qtnf_wmac *qtnf_core_mac_alloc(struct qtnf_bus *bus,
 
 	mac->macid = macid;
 	mac->bus = bus;
+	mutex_init(&mac->mac_lock);
+	INIT_DELAYED_WORK(&mac->scan_timeout, qtnf_mac_scan_timeout);
 
 	for (i = 0; i < QTNF_MAX_INTF; i++) {
-		memset(&mac->iflist[i], 0, sizeof(struct qtnf_vif));
-		mac->iflist[i].wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
-		mac->iflist[i].mac = mac;
-		mac->iflist[i].vifid = i;
-		qtnf_sta_list_init(&mac->iflist[i].sta_list);
-		mutex_init(&mac->mac_lock);
-		INIT_DELAYED_WORK(&mac->scan_timeout, qtnf_mac_scan_timeout);
-		mac->iflist[i].stats64 =
-			netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
-		if (!mac->iflist[i].stats64)
+		vif = &mac->iflist[i];
+
+		memset(vif, 0, sizeof(*vif));
+		vif->wdev.iftype = NL80211_IFTYPE_UNSPECIFIED;
+		vif->mac = mac;
+		vif->vifid = i;
+		qtnf_sta_list_init(&vif->sta_list);
+
+		vif->stats64 = netdev_alloc_pcpu_stats(struct pcpu_sw_netstats);
+		if (!vif->stats64)
 			pr_warn("VIF%u.%u: per cpu stats allocation failed\n",
 				macid, i);
 	}