[PATCH 5/6] staging: r8188eu: remove rtw_check_beacon_data()

From: Michael Straube
Date: Sun Sep 19 2021 - 11:38:11 EST

Function rtw_check_beacon_data() is not used, remove it.
It is the only user of start_bss_network() which is the only user
of update_hw_ht_param(). Remove these two functions as well.

Signed-off-by: Michael Straube <straube.linux@xxxxxxxxx>
---
drivers/staging/r8188eu/core/rtw_ap.c | 428 -----------------------
drivers/staging/r8188eu/include/rtw_ap.h | 1 -
2 files changed, 429 deletions(-)

diff --git a/drivers/staging/r8188eu/core/rtw_ap.c b/drivers/staging/r8188eu/core/rtw_ap.c
index 4f4ec4528016..49858adf486e 100644
--- a/drivers/staging/r8188eu/core/rtw_ap.c
+++ b/drivers/staging/r8188eu/core/rtw_ap.c
@@ -557,434 +557,6 @@ void update_sta_info_apmode(struct adapter *padapter, struct sta_info *psta)
spin_unlock_bh(&psta->lock);
}

-static void update_hw_ht_param(struct adapter *padapter)
-{
- unsigned char max_AMPDU_len;
- unsigned char min_MPDU_spacing;
- struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
- struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
-
- DBG_88E("%s\n", __func__);
-
- /* handle A-MPDU parameter field */
- /*
- AMPDU_para [1:0]:Max AMPDU Len => 0:8k , 1:16k, 2:32k, 3:64k
- AMPDU_para [4:2]:Min MPDU Start Spacing
- */
- max_AMPDU_len = pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x03;
-
- min_MPDU_spacing = (pmlmeinfo->HT_caps.u.HT_cap_element.AMPDU_para & 0x1c) >> 2;
-
- rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_MIN_SPACE, (u8 *)(&min_MPDU_spacing));
-
- rtw_hal_set_hwreg(padapter, HW_VAR_AMPDU_FACTOR, (u8 *)(&max_AMPDU_len));
-
- /* */
- /* Config SM Power Save setting */
- /* */
- pmlmeinfo->SM_PS = (le16_to_cpu(pmlmeinfo->HT_caps.u.HT_cap_element.HT_caps_info) & 0x0C) >> 2;
- if (pmlmeinfo->SM_PS == WLAN_HT_CAP_SM_PS_STATIC)
- DBG_88E("%s(): WLAN_HT_CAP_SM_PS_STATIC\n", __func__);
-}
-
-static void start_bss_network(struct adapter *padapter, u8 *pbuf)
-{
- u8 *p;
- u8 val8, cur_channel, cur_bwmode, cur_ch_offset;
- u16 bcn_interval;
- u32 acparm;
- int ie_len;
- struct registry_priv *pregpriv = &padapter->registrypriv;
- struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
- struct security_priv *psecuritypriv = &padapter->securitypriv;
- struct wlan_bssid_ex *pnetwork = (struct wlan_bssid_ex *)&pmlmepriv->cur_network.network;
- struct mlme_ext_priv *pmlmeext = &padapter->mlmeextpriv;
- struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info;
- struct wlan_bssid_ex *pnetwork_mlmeext = &pmlmeinfo->network;
- struct HT_info_element *pht_info = NULL;
- struct wifidirect_info *pwdinfo = &padapter->wdinfo;
-
- bcn_interval = (u16)pnetwork->Configuration.BeaconPeriod;
- cur_channel = pnetwork->Configuration.DSConfig;
- cur_bwmode = HT_CHANNEL_WIDTH_20;
- cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
-
- /* check if there is wps ie, */
- /* if there is wpsie in beacon, the hostapd will update beacon twice when stating hostapd, */
- /* and at first time the security ie (RSN/WPA IE) will not include in beacon. */
- if (!rtw_get_wps_ie(pnetwork->IEs + _FIXED_IE_LENGTH_, pnetwork->IELength - _FIXED_IE_LENGTH_, NULL, NULL))
- pmlmeext->bstart_bss = true;
-
- /* todo: update wmm, ht cap */
- if (pmlmepriv->qospriv.qos_option)
- pmlmeinfo->WMM_enable = true;
- if (pmlmepriv->htpriv.ht_option) {
- pmlmeinfo->WMM_enable = true;
- pmlmeinfo->HT_enable = true;
-
- update_hw_ht_param(padapter);
- }
-
- if (pmlmepriv->cur_network.join_res != true) { /* setting only at first time */
- /* WEP Key will be set before this function, do not clear CAM. */
- if ((psecuritypriv->dot11PrivacyAlgrthm != _WEP40_) &&
- (psecuritypriv->dot11PrivacyAlgrthm != _WEP104_))
- flush_all_cam_entry(padapter); /* clear CAM */
- }
-
- /* set MSR to AP_Mode */
- Set_MSR(padapter, _HW_STATE_AP_);
-
- /* Set BSSID REG */
- rtw_hal_set_hwreg(padapter, HW_VAR_BSSID, pnetwork->MacAddress);
-
- /* Set EDCA param reg */
- acparm = 0x002F3217; /* VO */
- rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VO, (u8 *)(&acparm));
- acparm = 0x005E4317; /* VI */
- rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_VI, (u8 *)(&acparm));
- acparm = 0x005ea42b;
- rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BE, (u8 *)(&acparm));
- acparm = 0x0000A444; /* BK */
- rtw_hal_set_hwreg(padapter, HW_VAR_AC_PARAM_BK, (u8 *)(&acparm));
-
- /* Set Security */
- val8 = (psecuritypriv->dot11AuthAlgrthm == dot11AuthAlgrthm_8021X) ? 0xcc : 0xcf;
- rtw_hal_set_hwreg(padapter, HW_VAR_SEC_CFG, (u8 *)(&val8));
-
- /* Beacon Control related register */
- rtw_hal_set_hwreg(padapter, HW_VAR_BEACON_INTERVAL, (u8 *)(&bcn_interval));
-
- UpdateBrateTbl(padapter, pnetwork->SupportedRates);
- rtw_hal_set_hwreg(padapter, HW_VAR_BASIC_RATE, pnetwork->SupportedRates);
-
- if (!pmlmepriv->cur_network.join_res) { /* setting only at first time */
- /* turn on all dynamic functions */
- Switch_DM_Func(padapter, DYNAMIC_ALL_FUNC_ENABLE, true);
- }
- /* set channel, bwmode */
- p = rtw_get_ie((pnetwork->IEs + sizeof(struct ndis_802_11_fixed_ie)), _HT_ADD_INFO_IE_, &ie_len, (pnetwork->IELength - sizeof(struct ndis_802_11_fixed_ie)));
- if (p && ie_len) {
- pht_info = (struct HT_info_element *)(p + 2);
-
- if ((pregpriv->cbw40_enable) && (pht_info->infos[0] & BIT(2))) {
- /* switch to the 40M Hz mode */
- cur_bwmode = HT_CHANNEL_WIDTH_40;
- switch (pht_info->infos[0] & 0x3) {
- case 1:
- cur_ch_offset = HAL_PRIME_CHNL_OFFSET_LOWER;
- break;
- case 3:
- cur_ch_offset = HAL_PRIME_CHNL_OFFSET_UPPER;
- break;
- default:
- cur_ch_offset = HAL_PRIME_CHNL_OFFSET_DONT_CARE;
- break;
- }
- }
- }
- /* TODO: need to judge the phy parameters on concurrent mode for single phy */
- set_channel_bwmode(padapter, cur_channel, cur_ch_offset, cur_bwmode);
-
- DBG_88E("CH =%d, BW =%d, offset =%d\n", cur_channel, cur_bwmode, cur_ch_offset);
-
- /* */
- pmlmeext->cur_channel = cur_channel;
- pmlmeext->cur_bwmode = cur_bwmode;
- pmlmeext->cur_ch_offset = cur_ch_offset;
- pmlmeext->cur_wireless_mode = pmlmepriv->cur_network.network_type;
-
- /* update cur_wireless_mode */
- update_wireless_mode(padapter);
-
- /* udpate capability after cur_wireless_mode updated */
- update_capinfo(padapter, rtw_get_capability((struct wlan_bssid_ex *)pnetwork));
-
- /* let pnetwork_mlmeext == pnetwork_mlme. */
- memcpy(pnetwork_mlmeext, pnetwork, pnetwork->Length);
-
- memcpy(pwdinfo->p2p_group_ssid, pnetwork->Ssid.Ssid, pnetwork->Ssid.SsidLength);
- pwdinfo->p2p_group_ssid_len = pnetwork->Ssid.SsidLength;
-
- if (pmlmeext->bstart_bss) {
- update_beacon(padapter, _TIM_IE_, NULL, false);
-
- /* issue beacon frame */
- if (send_beacon(padapter) == _FAIL)
- DBG_88E("issue_beacon, fail!\n");
- }
-
- /* update bc/mc sta_info */
- update_bmc_sta(padapter);
-}
-
-int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len)
-{
- int ret = _SUCCESS;
- u8 *p;
- u8 *pHT_caps_ie = NULL;
- u8 *pHT_info_ie = NULL;
- struct sta_info *psta = NULL;
- u16 cap, ht_cap = false;
- uint ie_len = 0;
- int group_cipher, pairwise_cipher;
- u8 channel, network_type, supportRate[NDIS_802_11_LENGTH_RATES_EX];
- int supportRateNum = 0;
- u8 OUI1[] = {0x00, 0x50, 0xf2, 0x01};
- u8 WMM_PARA_IE[] = {0x00, 0x50, 0xf2, 0x02, 0x01, 0x01};
- struct registry_priv *pregistrypriv = &padapter->registrypriv;
- struct security_priv *psecuritypriv = &padapter->securitypriv;
- struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
- struct wlan_bssid_ex *pbss_network = (struct wlan_bssid_ex *)&pmlmepriv->cur_network.network;
- u8 *ie = pbss_network->IEs;
-
- /* SSID */
- /* Supported rates */
- /* DS Params */
- /* WLAN_EID_COUNTRY */
- /* ERP Information element */
- /* Extended supported rates */
- /* WPA/WPA2 */
- /* Wi-Fi Wireless Multimedia Extensions */
- /* ht_capab, ht_oper */
- /* WPS IE */
-
- DBG_88E("%s, len =%d\n", __func__, len);
-
- if (check_fwstate(pmlmepriv, WIFI_AP_STATE) != true)
- return _FAIL;
-
- if (len > MAX_IE_SZ)
- return _FAIL;
-
- pbss_network->IELength = len;
-
- memset(ie, 0, MAX_IE_SZ);
-
- memcpy(ie, pbuf, pbss_network->IELength);
-
- if (pbss_network->InfrastructureMode != Ndis802_11APMode)
- return _FAIL;
-
- pbss_network->Rssi = 0;
-
- memcpy(pbss_network->MacAddress, myid(&padapter->eeprompriv), ETH_ALEN);
-
- /* beacon interval */
- p = rtw_get_beacon_interval_from_ie(ie);/* 8: TimeStamp, 2: Beacon Interval 2:Capability */
- pbss_network->Configuration.BeaconPeriod = get_unaligned_le16(p);
-
- /* capability */
- cap = get_unaligned_le16(ie);
-
- /* SSID */
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _SSID_IE_, &ie_len, (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p && ie_len > 0) {
- memset(&pbss_network->Ssid, 0, sizeof(struct ndis_802_11_ssid));
- memcpy(pbss_network->Ssid.Ssid, (p + 2), ie_len);
- pbss_network->Ssid.SsidLength = ie_len;
- }
-
- /* channel */
- channel = 0;
- pbss_network->Configuration.Length = 0;
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _DSSET_IE_, &ie_len, (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p && ie_len > 0)
- channel = *(p + 2);
-
- pbss_network->Configuration.DSConfig = channel;
-
- memset(supportRate, 0, NDIS_802_11_LENGTH_RATES_EX);
- /* get supported rates */
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _SUPPORTEDRATES_IE_, &ie_len, (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p) {
- memcpy(supportRate, p + 2, ie_len);
- supportRateNum = ie_len;
- }
-
- /* get ext_supported rates */
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _EXT_SUPPORTEDRATES_IE_, &ie_len, pbss_network->IELength - _BEACON_IE_OFFSET_);
- if (p) {
- memcpy(supportRate + supportRateNum, p + 2, ie_len);
- supportRateNum += ie_len;
- }
-
- network_type = rtw_check_network_type(supportRate, supportRateNum, channel);
-
- rtw_set_supported_rate(pbss_network->SupportedRates, network_type);
-
- /* parsing ERP_IE */
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _ERPINFO_IE_, &ie_len, (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p && ie_len > 0)
- ERP_IE_handler(padapter, (struct ndis_802_11_var_ie *)p);
-
- /* update privacy/security */
- if (cap & BIT(4))
- pbss_network->Privacy = 1;
- else
- pbss_network->Privacy = 0;
-
- psecuritypriv->wpa_psk = 0;
-
- /* wpa2 */
- group_cipher = 0;
- pairwise_cipher = 0;
- psecuritypriv->wpa2_group_cipher = _NO_PRIVACY_;
- psecuritypriv->wpa2_pairwise_cipher = _NO_PRIVACY_;
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _RSN_IE_2_, &ie_len, (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p && ie_len > 0) {
- if (rtw_parse_wpa2_ie(p, ie_len + 2, &group_cipher, &pairwise_cipher, NULL) == _SUCCESS) {
- psecuritypriv->dot11AuthAlgrthm = dot11AuthAlgrthm_8021X;
-
- psecuritypriv->dot8021xalg = 1;/* psk, todo:802.1x */
- psecuritypriv->wpa_psk |= BIT(1);
-
- psecuritypriv->wpa2_group_cipher = group_cipher;
- psecuritypriv->wpa2_pairwise_cipher = pairwise_cipher;
- }
- }
- /* wpa */
- ie_len = 0;
- group_cipher = 0;
- pairwise_cipher = 0;
- psecuritypriv->wpa_group_cipher = _NO_PRIVACY_;
- psecuritypriv->wpa_pairwise_cipher = _NO_PRIVACY_;
- for (p = ie + _BEACON_IE_OFFSET_;; p += (ie_len + 2)) {
- p = rtw_get_ie(p, _SSN_IE_1_, &ie_len,
- (pbss_network->IELength - _BEACON_IE_OFFSET_ - (ie_len + 2)));
- if ((p) && (!memcmp(p + 2, OUI1, 4))) {
- if (rtw_parse_wpa_ie(p, ie_len + 2, &group_cipher,
- &pairwise_cipher, NULL) == _SUCCESS) {
- psecuritypriv->dot11AuthAlgrthm = dot11AuthAlgrthm_8021X;
-
- psecuritypriv->dot8021xalg = 1;/* psk, todo:802.1x */
-
- psecuritypriv->wpa_psk |= BIT(0);
-
- psecuritypriv->wpa_group_cipher = group_cipher;
- psecuritypriv->wpa_pairwise_cipher = pairwise_cipher;
- }
- break;
- }
- if (!p || ie_len == 0)
- break;
- }
-
- /* wmm */
- ie_len = 0;
- pmlmepriv->qospriv.qos_option = 0;
- if (pregistrypriv->wmm_enable) {
- for (p = ie + _BEACON_IE_OFFSET_;; p += (ie_len + 2)) {
- p = rtw_get_ie(p, _VENDOR_SPECIFIC_IE_, &ie_len,
- (pbss_network->IELength - _BEACON_IE_OFFSET_ - (ie_len + 2)));
- if ((p) && !memcmp(p + 2, WMM_PARA_IE, 6)) {
- pmlmepriv->qospriv.qos_option = 1;
-
- *(p + 8) |= BIT(7);/* QoS Info, support U-APSD */
-
- /* disable all ACM bits since the WMM admission control is not supported */
- *(p + 10) &= ~BIT(4); /* BE */
- *(p + 14) &= ~BIT(4); /* BK */
- *(p + 18) &= ~BIT(4); /* VI */
- *(p + 22) &= ~BIT(4); /* VO */
- break;
- }
-
- if (!p || ie_len == 0)
- break;
- }
- }
- /* parsing HT_CAP_IE */
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _HT_CAPABILITY_IE_, &ie_len,
- (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p && ie_len > 0) {
- u8 rf_type;
- struct ieee80211_ht_cap *pht_cap = (struct ieee80211_ht_cap *)(p + 2);
-
- pHT_caps_ie = p;
- ht_cap = true;
- network_type |= WIRELESS_11_24N;
-
- rtw_hal_get_hwreg(padapter, HW_VAR_RF_TYPE, (u8 *)(&rf_type));
-
- if ((psecuritypriv->wpa_pairwise_cipher & WPA_CIPHER_CCMP) ||
- (psecuritypriv->wpa2_pairwise_cipher & WPA_CIPHER_CCMP))
- pht_cap->ampdu_params_info |= (IEEE80211_HT_AMPDU_PARM_DENSITY & (0x07 << 2));
- else
- pht_cap->ampdu_params_info |= (IEEE80211_HT_AMPDU_PARM_DENSITY & 0x00);
-
- /* set Max Rx AMPDU size to 64K */
- pht_cap->ampdu_params_info |= (IEEE80211_HT_AMPDU_PARM_FACTOR & 0x03);
-
- if (rf_type == RF_1T1R) {
- pht_cap->mcs.rx_mask[0] = 0xff;
- pht_cap->mcs.rx_mask[1] = 0x0;
- }
- memcpy(&pmlmepriv->htpriv.ht_cap, p + 2, ie_len);
- }
-
- /* parsing HT_INFO_IE */
- p = rtw_get_ie(ie + _BEACON_IE_OFFSET_, _HT_ADD_INFO_IE_, &ie_len,
- (pbss_network->IELength - _BEACON_IE_OFFSET_));
- if (p && ie_len > 0)
- pHT_info_ie = p;
- switch (network_type) {
- case WIRELESS_11B:
- pbss_network->NetworkTypeInUse = Ndis802_11DS;
- break;
- case WIRELESS_11G:
- case WIRELESS_11BG:
- case WIRELESS_11G_24N:
- case WIRELESS_11BG_24N:
- pbss_network->NetworkTypeInUse = Ndis802_11OFDM24;
- break;
- default:
- pbss_network->NetworkTypeInUse = Ndis802_11OFDM24;
- break;
- }
-
- pmlmepriv->cur_network.network_type = network_type;
-
- pmlmepriv->htpriv.ht_option = false;
-
- if ((psecuritypriv->wpa2_pairwise_cipher & WPA_CIPHER_TKIP) ||
- (psecuritypriv->wpa_pairwise_cipher & WPA_CIPHER_TKIP)) {
- /* todo: */
- /* ht_cap = false; */
- }
-
- /* ht_cap */
- if (pregistrypriv->ht_enable && ht_cap) {
- pmlmepriv->htpriv.ht_option = true;
- pmlmepriv->qospriv.qos_option = 1;
-
- if (pregistrypriv->ampdu_enable == 1)
- pmlmepriv->htpriv.ampdu_enable = true;
- HT_caps_handler(padapter, (struct ndis_802_11_var_ie *)pHT_caps_ie);
-
- HT_info_handler(padapter, (struct ndis_802_11_var_ie *)pHT_info_ie);
- }
-
- pbss_network->Length = get_wlan_bssid_ex_sz((struct wlan_bssid_ex *)pbss_network);
-
- /* issue beacon to start bss network */
- start_bss_network(padapter, (u8 *)pbss_network);
-
- /* alloc sta_info for ap itself */
- psta = rtw_get_stainfo(&padapter->stapriv, pbss_network->MacAddress);
- if (!psta) {
- psta = rtw_alloc_stainfo(&padapter->stapriv, pbss_network->MacAddress);
- if (!psta)
- return _FAIL;
- }
-
- /* fix bug of flush_cam_entry at STOP AP mode */
- psta->state |= WIFI_AP_STATE;
- rtw_indicate_connect(padapter);
- pmlmepriv->cur_network.join_res = true;/* for check if already set beacon */
- return ret;
-}
-
void rtw_set_macaddr_acl(struct adapter *padapter, int mode)
{
struct sta_priv *pstapriv = &padapter->stapriv;
diff --git a/drivers/staging/r8188eu/include/rtw_ap.h b/drivers/staging/r8188eu/include/rtw_ap.h
index dac091443ba1..134a9a8143b2 100644
--- a/drivers/staging/r8188eu/include/rtw_ap.h
+++ b/drivers/staging/r8188eu/include/rtw_ap.h
@@ -20,7 +20,6 @@ void add_RATid(struct adapter *padapter, struct sta_info *psta,
u8 rssi_level);
void expire_timeout_chk(struct adapter *padapter);
void update_sta_info_apmode(struct adapter *padapter, struct sta_info *psta);
-int rtw_check_beacon_data(struct adapter *padapter, u8 *pbuf, int len);
void rtw_ap_restore_network(struct adapter *padapter);
void rtw_set_macaddr_acl(struct adapter *padapter, int mode);

--
2.33.0