qcacld-3.0: Handle LL stats for 2nd radio

With recent code change, LL stats results are returned in the user
space context only. To do that, changes were made to buffer the LL
stats results received from FW till the time FW completes it. This
change is not taking case where FW sends LL stats for multiple radio
which is resulting SKB corruption.

Change-Id: I49781f1ea9520ad0d9721536be1861d5d8151ea7
CRs-Fixed: 2649207

core/hdd/src/wlan_hdd_stats.c

@@ -1034,6 +1034,7 @@ static void hdd_process_ll_stats(tSirLLStatsResults *results,
 {
 	struct hdd_ll_stats_priv *priv = osif_request_priv(request);
 	struct hdd_ll_stats *stats = NULL;
+	size_t stat_size = 0;
 
 	if (!(priv->request_bitmap & results->paramId))
 		return;
@@ -1043,15 +1044,16 @@ static void hdd_process_ll_stats(tSirLLStatsResults *results,
 		if (!stats)
 			goto exit;
 
+		stat_size = sizeof(struct wifi_radio_stats) *
+			    results->num_radio;
 		stats->result_param_id = WMI_LINK_STATS_RADIO;
-		stats->result = qdf_mem_malloc(sizeof(struct wifi_radio_stats));
+		stats->result = qdf_mem_malloc(stat_size);
 		if (!stats->result) {
 			qdf_mem_free(stats);
 			goto exit;
 		}
 
-		qdf_mem_copy(stats->result, results->results,
-			     sizeof(struct wifi_radio_stats));
+		qdf_mem_copy(stats->result, results->results, stat_size);
 		stats->stats_nradio_npeer.no_of_radios = results->num_radio;
 		stats->more_data = results->moreResultToFollow;
 		if (!results->moreResultToFollow)
@@ -1075,12 +1077,30 @@ static void hdd_process_ll_stats(tSirLLStatsResults *results,
 			priv->request_bitmap &= ~(WMI_LINK_STATS_ALL_PEER);
 		priv->request_bitmap &= ~stats->result_param_id;
 	} else if (results->paramId & WMI_LINK_STATS_ALL_PEER) {
+		struct wifi_peer_stat *peer_stat = (struct wifi_peer_stat *)
+						   results->results;
+		struct wifi_peer_info *peer_info = NULL;
+		u32 num_rate = 0, peers, rates;
+		int i;
 		stats = qdf_mem_malloc(sizeof(*stats));
 		if (!stats)
 			goto exit;
 
+		peer_info = (struct wifi_peer_info *)peer_stat->peer_info;
+		for (i = 1; i <= peer_stat->num_peers; i++) {
+			num_rate += peer_info->num_rate;
+			peer_info = (struct wifi_peer_info *)((uint8_t *)
+				    peer_info + sizeof(struct wifi_peer_info) +
+				    (peer_info->num_rate *
+				    sizeof(struct wifi_rate_stat)));
+		}
+
+		peers = sizeof(struct wifi_peer_info) * peer_stat->num_peers;
+		rates = sizeof(struct wifi_rate_stat) * num_rate;
+		stat_size = sizeof(struct wifi_peer_stat) + peers + rates;
 		stats->result_param_id = WMI_LINK_STATS_ALL_PEER;
-		stats->result = qdf_mem_malloc(sizeof(struct wifi_peer_stat));
+
+		stats->result = qdf_mem_malloc(stat_size);
 		if (!stats->result) {
 			qdf_mem_free(stats);
 			goto exit;