staging: rtl8192e: Use standard ieee80211 function in rtllib_rx_mgt()

Replace WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) and comparison
with standard function to avoid proprietary code and to increase
readability.
Signed-off-by: Philipp Hortmann <philipp.g.hortmann@gmail.com>
Link: https://lore.kernel.org/r/26cb0a7758186090a618a134c21e237594bbc525.1694546300.git.philipp.g.hortmann@gmail.comSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8192e/rtllib_rx.c

@@ -2644,14 +2644,11 @@ static void rtllib_rx_mgt(struct rtllib_device *ieee,
 {
 	struct rtllib_hdr_4addr *header = (struct rtllib_hdr_4addr *)skb->data;
 
-	if ((WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) !=
-	    RTLLIB_STYPE_PROBE_RESP) &&
-	    (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl)) !=
-	    RTLLIB_STYPE_BEACON))
+	if (!ieee80211_is_probe_resp(header->frame_ctl) &&
+	    (!ieee80211_is_beacon(header->frame_ctl)))
 		ieee->last_rx_ps_time = jiffies;
 
-	switch (WLAN_FC_GET_STYPE(le16_to_cpu(header->frame_ctl))) {
-	case RTLLIB_STYPE_BEACON:
+	if (ieee80211_is_beacon(header->frame_ctl)) {
 		netdev_dbg(ieee->dev, "received BEACON\n");
 		rtllib_process_probe_response(
 				ieee, (struct rtllib_probe_response *)header,
@@ -2661,20 +2658,15 @@ static void rtllib_rx_mgt(struct rtllib_device *ieee,
 		    ieee->iw_mode == IW_MODE_INFRA &&
 		    ieee->link_state == MAC80211_LINKED))
 			schedule_work(&ieee->ps_task);
-
-		break;
-
-	case RTLLIB_STYPE_PROBE_RESP:
+	} else if (ieee80211_is_probe_resp(header->frame_ctl)) {
 		netdev_dbg(ieee->dev, "received PROBE RESPONSE\n");
 		rtllib_process_probe_response(ieee,
 			      (struct rtllib_probe_response *)header, stats);
-		break;
-	case RTLLIB_STYPE_PROBE_REQ:
+	} else if (ieee80211_is_probe_req(header->frame_ctl)) {
 		netdev_dbg(ieee->dev, "received PROBE REQUEST\n");
 		if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) &&
 		    (ieee->iw_mode == IW_MODE_ADHOC &&
 		    ieee->link_state == MAC80211_LINKED))
 			rtllib_rx_probe_rq(ieee, skb);
-		break;
 	}
 }