staging: rtl8188eu: remove code that is valid only for 5 GHz

Remove code that is used only for 5 GHz.
This addresses the below TODO item:

- find and remove remaining code valid only for 5 GHz. Most of the obvious
  ones have been removed, but things like channel > 14 still exist.
Signed-off-by: Robert Węcławski <r.weclawski@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

drivers/staging/rtl8188eu/core/rtw_ap.c

@@ -337,8 +337,6 @@ void add_RATid(struct adapter *padapter, struct sta_info *psta, u8 rssi_level)
 	unsigned char sta_band = 0, raid, shortGIrate = false;
 	unsigned int tx_ra_bitmap = 0;
 	struct ht_priv	*psta_ht = NULL;
-	struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
-	struct wlan_bssid_ex *pcur_network = (struct wlan_bssid_ex *)&pmlmepriv->cur_network.network;
 
 	if (psta)
 		psta_ht = &psta->htpriv;
@@ -363,20 +361,13 @@ void add_RATid(struct adapter *padapter, struct sta_info *psta, u8 rssi_level)
 		shortGIrate = psta_ht->sgi;
 	}
 
-	if (pcur_network->Configuration.DSConfig > 14) {
-		/*  5G band */
-		if (tx_ra_bitmap & 0xffff000)
-			sta_band |= WIRELESS_11_5N | WIRELESS_11A;
-		else
-			sta_band |= WIRELESS_11A;
-	} else {
-		if (tx_ra_bitmap & 0xffff000)
-			sta_band |= WIRELESS_11_24N | WIRELESS_11G | WIRELESS_11B;
-		else if (tx_ra_bitmap & 0xff0)
-			sta_band |= WIRELESS_11G | WIRELESS_11B;
-		else
-			sta_band |= WIRELESS_11B;
-	}
+	if (tx_ra_bitmap & 0xffff000)
+		sta_band |= WIRELESS_11_24N | WIRELESS_11G | WIRELESS_11B;
+	else if (tx_ra_bitmap & 0xff0)
+		sta_band |= WIRELESS_11G | WIRELESS_11B;
+	else
+		sta_band |= WIRELESS_11B;
+
 
 	psta->wireless_mode = sta_band;
 

drivers/staging/rtl8188eu/core/rtw_debug.c

@@ -153,13 +153,11 @@ int proc_get_best_channel(char *page, char **start,
 	struct adapter *padapter = (struct adapter *)rtw_netdev_priv(dev);
 	struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
 	int len = 0;
-	u32 i, best_channel_24G = 1, best_channel_5G = 36, index_24G = 0, index_5G = 0;
+	u32 i, best_channel_24G = 1, index_24G = 0;
 
 	for (i = 0; pmlmeext->channel_set[i].ChannelNum != 0; i++) {
 		if (pmlmeext->channel_set[i].ChannelNum == 1)
 			index_24G = i;
-		if (pmlmeext->channel_set[i].ChannelNum == 36)
-			index_5G = i;
 	}
 
 	for (i = 0; pmlmeext->channel_set[i].ChannelNum != 0; i++) {
@@ -171,32 +169,11 @@ int proc_get_best_channel(char *page, char **start,
 			}
 		}
 
-		/*  5G */
-		if (pmlmeext->channel_set[i].ChannelNum >= 36 &&
-		    pmlmeext->channel_set[i].ChannelNum < 140) {
-			/*  Find primary channel */
-			if (((pmlmeext->channel_set[i].ChannelNum - 36) % 8 == 0) &&
-			    (pmlmeext->channel_set[i].rx_count < pmlmeext->channel_set[index_5G].rx_count)) {
-				index_5G = i;
-				best_channel_5G = pmlmeext->channel_set[i].ChannelNum;
-			}
-		}
-
-		if (pmlmeext->channel_set[i].ChannelNum >= 149 &&
-		    pmlmeext->channel_set[i].ChannelNum < 165) {
-			/*  find primary channel */
-			if (((pmlmeext->channel_set[i].ChannelNum - 149) % 8 == 0) &&
-			    (pmlmeext->channel_set[i].rx_count < pmlmeext->channel_set[index_5G].rx_count)) {
-				index_5G = i;
-				best_channel_5G = pmlmeext->channel_set[i].ChannelNum;
-			}
-		}
 		/*  debug */
 		len += snprintf(page + len, count - len, "The rx cnt of channel %3d = %d\n",
 					pmlmeext->channel_set[i].ChannelNum, pmlmeext->channel_set[i].rx_count);
 	}
 
-	len += snprintf(page + len, count - len, "best_channel_5G = %d\n", best_channel_5G);
 	len += snprintf(page + len, count - len, "best_channel_24G = %d\n", best_channel_24G);
 
 	*eof = 1;

drivers/staging/rtl8188eu/core/rtw_mlme.c

@@ -1819,18 +1819,8 @@ void rtw_update_registrypriv_dev_network(struct adapter *adapter)
 	case WIRELESS_11BG_24N:
 		pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
 		break;
-	case WIRELESS_11A:
-	case WIRELESS_11A_5N:
-		pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
-		break;
-	case WIRELESS_11ABGN:
-		if (pregistrypriv->channel > 14)
-			pdev_network->NetworkTypeInUse = Ndis802_11OFDM5;
-		else
-			pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
-		break;
 	default:
-		/*  TODO */
+		pdev_network->NetworkTypeInUse = Ndis802_11OFDM24;
 		break;
 	}
 

drivers/staging/rtl8188eu/core/rtw_mlme_ext.c

@@ -2401,10 +2401,7 @@ static void process_80211d(struct adapter *padapter, struct wlan_bssid_ex *bssid
 			p++;
 
 			for (j = 0; j < noc; j++) {
-				if (fcn <= 14)
-					channel = fcn + j; /*  2.4 GHz */
-				else
-					channel = fcn + j*4; /*  5 GHz */
+				channel = fcn + j;
 
 				chplan_ap.Channel[i++] = channel;
 			}
@@ -2481,14 +2478,6 @@ static void process_80211d(struct adapter *padapter, struct wlan_bssid_ex *bssid
 				j++;
 		}
 
-		/*  keep original STA 5G channel plan */
-		while ((i < MAX_CHANNEL_NUM) && (chplan_sta[i].ChannelNum != 0)) {
-			chplan_new[k].ChannelNum = chplan_sta[i].ChannelNum;
-			chplan_new[k].ScanType = chplan_sta[i].ScanType;
-			i++;
-			k++;
-		}
-
 		pmlmeext->update_channel_plan_by_ap_done = 1;
 	}