staging: wfx: fix endianness of fields media_delay and tx_queue_delay

The struct hif_cnf_tx contains only little endian values. Thus, it is
necessary to fix byte ordering before to use them. Especially, sparse
detected wrong access to fields media_delay and tx_queue_delay.
Signed-off-by: Jérôme Pouiller <jerome.pouiller@silabs.com>
Link: https://lore.kernel.org/r/20200512150414.267198-7-Jerome.Pouiller@silabs.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/wfx/data_tx.c

@@ -562,7 +562,8 @@ void wfx_tx_confirm_cb(struct wfx_vif *wvif, const struct hif_cnf_tx *arg)
 
 	if (!arg->status) {
 		tx_info->status.tx_time =
-		arg->media_delay - arg->tx_queue_delay;
+			le32_to_cpu(arg->media_delay) -
+			le32_to_cpu(arg->tx_queue_delay);
 		if (tx_info->flags & IEEE80211_TX_CTL_NO_ACK)
 			tx_info->flags |= IEEE80211_TX_STAT_NOACK_TRANSMITTED;
 		else

drivers/staging/wfx/traces.h

@@ -387,8 +387,8 @@ TRACE_EVENT(tx_stats,
 		int i;
 
 		__entry->pkt_id = tx_cnf->packet_id;
-		__entry->delay_media = tx_cnf->media_delay;
-		__entry->delay_queue = tx_cnf->tx_queue_delay;
+		__entry->delay_media = le32_to_cpu(tx_cnf->media_delay);
+		__entry->delay_queue = le32_to_cpu(tx_cnf->tx_queue_delay);
 		__entry->delay_fw = delay;
 		__entry->ack_failures = tx_cnf->ack_failures;
 		if (!tx_cnf->status || __entry->ack_failures)