break;
 
        case BTC_GET_U4_WIFI_BW:
-               if (IsLegacyOnly(mlmeext->cur_wireless_mode))
+               if (is_legacy_only(mlmeext->cur_wireless_mode))
                        *pU4Tmp = BTC_WIFI_BW_LEGACY;
                else if (pHalData->CurrentChannelBW == CHANNEL_WIDTH_20)
                        *pU4Tmp = BTC_WIFI_BW_HT20;
 
 
 #define SUPPORTED_24G_NETTYPE_MSK (WIRELESS_11B | WIRELESS_11G | WIRELESS_11_24N)
 
-#define IsLegacyOnly(NetType)  ((NetType) == ((NetType) & (WIRELESS_11BG)))
+#define is_legacy_only(NetType)  ((NetType) == ((NetType) & (WIRELESS_11BG)))
 
 #define IsSupported24G(NetType) ((NetType) & SUPPORTED_24G_NETTYPE_MSK ? true : false)