staging: r8188eu: use ieee80211 helpers in mgt_dispatcher

Use structs and functions from ieee80211.h in mgt_dispatcher to parse
the incoming frame.
Signed-off-by: Martin Kaiser <martin@kaiser.cx>
Link: https://lore.kernel.org/r/20220413200742.276806-4-martin@kaiser.cxSigned-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/r8188eu/core/rtw_mlme_ext.c

@@ -396,14 +396,15 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 	struct mlme_handler *ptable;
 	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
 	u8 *pframe = precv_frame->rx_data;
-	struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, GetAddr2Ptr(pframe));
+	struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)precv_frame->rx_data;
+	struct sta_info *psta = rtw_get_stainfo(&padapter->stapriv, hdr->addr2);
 
-	if (GetFrameType(pframe) != IEEE80211_FTYPE_MGMT)
+	if (!ieee80211_is_mgmt(hdr->frame_control))
 		return;
 
 	/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
-	if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
-	    !is_broadcast_ether_addr(GetAddr1Ptr(pframe)))
+	if (memcmp(hdr->addr1, myid(&padapter->eeprompriv), ETH_ALEN) &&
+	    !is_broadcast_ether_addr(hdr->addr1))
 		return;
 
 	ptable = mlme_sta_tbl;
@@ -415,7 +416,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 	ptable += index;
 
 	if (psta) {
-		if (GetRetry(pframe)) {
+		if (ieee80211_has_retry(hdr->frame_control)) {
 			if (precv_frame->attrib.seq_num == psta->RxMgmtFrameSeqNum)
 				/* drop the duplicate management frame */
 				return;
@@ -423,7 +424,7 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 		psta->RxMgmtFrameSeqNum = precv_frame->attrib.seq_num;
 	}
 
-	if (GetFrameSubType(pframe) == WIFI_AUTH) {
+	if (ieee80211_is_auth(hdr->frame_control)) {
 		if (check_fwstate(pmlmepriv, WIFI_AP_STATE))
 			ptable->func = &OnAuth;
 		else
@@ -432,8 +433,8 @@ void mgt_dispatcher(struct adapter *padapter, struct recv_frame *precv_frame)
 
 	if (ptable->func) {
 	/* receive the frames that ra(a1) is my address or ra(a1) is bc address. */
-		if (memcmp(GetAddr1Ptr(pframe), myid(&padapter->eeprompriv), ETH_ALEN) &&
-		    !is_broadcast_ether_addr(GetAddr1Ptr(pframe)))
+		if (memcmp(hdr->addr1, myid(&padapter->eeprompriv), ETH_ALEN) &&
+		    !is_broadcast_ether_addr(hdr->addr1))
 			return;
 		ptable->func(padapter, precv_frame);
 	}