Re: [PATCH] staging: rtl8723bs: use kzalloc_obj() in rtw_wlan_util.c
From: kernel test robot
Date: Sat Feb 21 2026 - 07:52:19 EST
Hi Giorgi,
kernel test robot noticed the following build errors:
[auto build test ERROR on staging/staging-testing]
url: https://github.com/intel-lab-lkp/linux/commits/Giorgi-Tchankvetadze/staging-rtl8723bs-use-kzalloc_obj-in-rtw_wlan_util-c/20260221-162627
base: staging/staging-testing
patch link: https://lore.kernel.org/r/20260221082311.128678-2-giorgitchankvetadze1997%40gmail.com
patch subject: [PATCH] staging: rtl8723bs: use kzalloc_obj() in rtw_wlan_util.c
config: sh-allyesconfig (https://download.01.org/0day-ci/archive/20260221/202602212033.bdbmIXpW-lkp@xxxxxxxxx/config)
compiler: sh4-linux-gcc (GCC) 15.2.0
reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20260221/202602212033.bdbmIXpW-lkp@xxxxxxxxx/reproduce)
If you fix the issue in a separate patch/commit (i.e. not just a new version of
the same patch/commit), kindly add following tags
| Reported-by: kernel test robot <lkp@xxxxxxxxx>
| Closes: https://lore.kernel.org/oe-kbuild-all/202602212033.bdbmIXpW-lkp@xxxxxxxxx/
All errors (new ones prefixed by >>):
drivers/staging/rtl8723bs/core/rtw_wlan_util.c: In function 'rtw_check_bcn_info':
>> drivers/staging/rtl8723bs/core/rtw_wlan_util.c:1134:15: error: assignment to 'struct wlan_bssid_ex *' from incompatible pointer type 'struct wlan_bssid_ex **' [-Wincompatible-pointer-types]
1134 | bssid = kzalloc_obj(bssid, GFP_KERNEL);
| ^
vim +1134 drivers/staging/rtl8723bs/core/rtw_wlan_util.c
1100
1101 int rtw_check_bcn_info(struct adapter *Adapter, u8 *pframe, u32 packet_len)
1102 {
1103 unsigned int len;
1104 unsigned char *p;
1105 unsigned short val16, subtype;
1106 struct wlan_network *cur_network = &(Adapter->mlmepriv.cur_network);
1107 /* u8 wpa_ie[255], rsn_ie[255]; */
1108 u16 wpa_len = 0, rsn_len = 0;
1109 u8 encryp_protocol = 0;
1110 struct wlan_bssid_ex *bssid;
1111 int group_cipher = 0, pairwise_cipher = 0, is_8021x = 0;
1112 unsigned char *pbuf;
1113 u32 wpa_ielen = 0;
1114 u8 *pbssid = GetAddr3Ptr(pframe);
1115 struct HT_info_element *pht_info = NULL;
1116 struct ieee80211_ht_cap *pht_cap = NULL;
1117 u32 bcn_channel;
1118 unsigned short ht_cap_info;
1119 unsigned char ht_info_infos_0;
1120 struct mlme_priv *pmlmepriv = &Adapter->mlmepriv;
1121 int ssid_len;
1122
1123 if (is_client_associated_to_ap(Adapter) == false)
1124 return true;
1125
1126 len = packet_len - sizeof(struct ieee80211_hdr_3addr);
1127
1128 if (len > MAX_IE_SZ)
1129 return _FAIL;
1130
1131 if (memcmp(cur_network->network.mac_address, pbssid, 6))
1132 return true;
1133
> 1134 bssid = kzalloc_obj(bssid, GFP_KERNEL);
1135 if (!bssid)
1136 return true;
1137
1138 if ((pmlmepriv->timeBcnInfoChkStart != 0) && (jiffies_to_msecs(jiffies - pmlmepriv->timeBcnInfoChkStart) > DISCONNECT_BY_CHK_BCN_FAIL_OBSERV_PERIOD_IN_MS)) {
1139 pmlmepriv->timeBcnInfoChkStart = 0;
1140 pmlmepriv->NumOfBcnInfoChkFail = 0;
1141 }
1142
1143 subtype = GetFrameSubType(pframe) >> 4;
1144
1145 if (subtype == WIFI_BEACON)
1146 bssid->reserved[0] = 1;
1147
1148 bssid->length = sizeof(struct wlan_bssid_ex) - MAX_IE_SZ + len;
1149
1150 /* below is to copy the information element */
1151 bssid->ie_length = len;
1152 memcpy(bssid->ies, (pframe + sizeof(struct ieee80211_hdr_3addr)), bssid->ie_length);
1153
1154 /* check bw and channel offset */
1155 /* parsing HT_CAP_IE */
1156 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_HT_CAPABILITY, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1157 if (p && len > 0) {
1158 pht_cap = (struct ieee80211_ht_cap *)(p + 2);
1159 ht_cap_info = le16_to_cpu(pht_cap->cap_info);
1160 } else {
1161 ht_cap_info = 0;
1162 }
1163 /* parsing HT_INFO_IE */
1164 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_HT_OPERATION, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1165 if (p && len > 0) {
1166 pht_info = (struct HT_info_element *)(p + 2);
1167 ht_info_infos_0 = pht_info->infos[0];
1168 } else {
1169 ht_info_infos_0 = 0;
1170 }
1171 if (ht_cap_info != cur_network->bcn_info.ht_cap_info ||
1172 ((ht_info_infos_0 & 0x03) != (cur_network->bcn_info.ht_info_infos_0 & 0x03))) {
1173 {
1174 /* bcn_info_update */
1175 cur_network->bcn_info.ht_cap_info = ht_cap_info;
1176 cur_network->bcn_info.ht_info_infos_0 = ht_info_infos_0;
1177 /* to do : need to check that whether modify related register of BB or not */
1178 }
1179 /* goto _mismatch; */
1180 }
1181
1182 /* Checking for channel */
1183 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_DS_PARAMS, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1184 if (p) {
1185 bcn_channel = *(p + 2);
1186 } else {/* In 5G, some ap do not have DSSET IE checking HT info for channel */
1187 rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_HT_OPERATION,
1188 &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1189 if (pht_info)
1190 bcn_channel = pht_info->primary_channel;
1191 else /* we don't find channel IE, so don't check it */
1192 bcn_channel = Adapter->mlmeextpriv.cur_channel;
1193 }
1194
1195 if (bcn_channel != Adapter->mlmeextpriv.cur_channel)
1196 goto _mismatch;
1197
1198 /* checking SSID */
1199 ssid_len = 0;
1200 p = rtw_get_ie(bssid->ies + _FIXED_IE_LENGTH_, WLAN_EID_SSID, &len, bssid->ie_length - _FIXED_IE_LENGTH_);
1201 if (p) {
1202 ssid_len = *(p + 1);
1203 if (ssid_len > NDIS_802_11_LENGTH_SSID)
1204 ssid_len = 0;
1205 }
1206 memcpy(bssid->ssid.ssid, (p + 2), ssid_len);
1207 bssid->ssid.ssid_length = ssid_len;
1208
1209 if (memcmp(bssid->ssid.ssid, cur_network->network.ssid.ssid, 32) ||
1210 bssid->ssid.ssid_length != cur_network->network.ssid.ssid_length)
1211 if (bssid->ssid.ssid[0] != '\0' &&
1212 bssid->ssid.ssid_length != 0) /* not hidden ssid */
1213 goto _mismatch;
1214
1215 /* check encryption info */
1216 val16 = rtw_get_capability((struct wlan_bssid_ex *)bssid);
1217
1218 if (val16 & BIT(4))
1219 bssid->privacy = 1;
1220 else
1221 bssid->privacy = 0;
1222
1223 if (cur_network->network.privacy != bssid->privacy)
1224 goto _mismatch;
1225
1226 rtw_get_sec_ie(bssid->ies, bssid->ie_length, NULL, &rsn_len, NULL, &wpa_len);
1227
1228 if (rsn_len > 0)
1229 encryp_protocol = ENCRYP_PROTOCOL_WPA2;
1230 else if (wpa_len > 0)
1231 encryp_protocol = ENCRYP_PROTOCOL_WPA;
1232 else
1233 if (bssid->privacy)
1234 encryp_protocol = ENCRYP_PROTOCOL_WEP;
1235
1236 if (cur_network->bcn_info.encryp_protocol != encryp_protocol)
1237 goto _mismatch;
1238
1239 if (encryp_protocol == ENCRYP_PROTOCOL_WPA || encryp_protocol == ENCRYP_PROTOCOL_WPA2) {
1240 pbuf = rtw_get_wpa_ie(&bssid->ies[12], &wpa_ielen, bssid->ie_length - 12);
1241 if (pbuf && (wpa_ielen > 0)) {
1242 rtw_parse_wpa_ie(pbuf, wpa_ielen + 2, &group_cipher,
1243 &pairwise_cipher, &is_8021x);
1244 } else {
1245 pbuf = rtw_get_wpa2_ie(&bssid->ies[12], &wpa_ielen, bssid->ie_length - 12);
1246
1247 if (pbuf && (wpa_ielen > 0))
1248 rtw_parse_wpa2_ie(pbuf, wpa_ielen + 2, &group_cipher,
1249 &pairwise_cipher, &is_8021x);
1250 }
1251
1252 if (pairwise_cipher != cur_network->bcn_info.pairwise_cipher ||
1253 group_cipher != cur_network->bcn_info.group_cipher)
1254 goto _mismatch;
1255
1256 if (is_8021x != cur_network->bcn_info.is_8021x)
1257 goto _mismatch;
1258 }
1259
1260 kfree(bssid);
1261 return _SUCCESS;
1262
1263 _mismatch:
1264 kfree(bssid);
1265
1266 if (pmlmepriv->NumOfBcnInfoChkFail == 0)
1267 pmlmepriv->timeBcnInfoChkStart = jiffies;
1268
1269 pmlmepriv->NumOfBcnInfoChkFail++;
1270
1271 if ((pmlmepriv->timeBcnInfoChkStart != 0) && (jiffies_to_msecs(jiffies - pmlmepriv->timeBcnInfoChkStart) <= DISCONNECT_BY_CHK_BCN_FAIL_OBSERV_PERIOD_IN_MS)
1272 && (pmlmepriv->NumOfBcnInfoChkFail >= DISCONNECT_BY_CHK_BCN_FAIL_THRESHOLD)) {
1273 pmlmepriv->timeBcnInfoChkStart = 0;
1274 pmlmepriv->NumOfBcnInfoChkFail = 0;
1275 return _FAIL;
1276 }
1277
1278 return _SUCCESS;
1279 }
1280
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