Hi Martin, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on staging/staging-testing] url: https://github.com/0day-ci/linux/commits/Martin-Kaiser/staging-rtl8188eu-remove-unused-defines/20210726-000245 base: https://git.kernel.org/pub/scm/linux/kernel/git/gregkh/staging.git f133717efc6f28052667daf682e99ffd4b3d7588 config: arc-allyesconfig (attached as .config) compiler: arceb-elf-gcc (GCC) 10.3.0 reproduce (this is a W=1 build): wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # https://github.com/0day-ci/linux/commit/fd8745a2293eb9616eb3ae4c2e231462a18bdbac git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Martin-Kaiser/staging-rtl8188eu-remove-unused-defines/20210726-000245 git checkout fd8745a2293eb9616eb3ae4c2e231462a18bdbac # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-10.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot All warnings (new ones prefixed by >>): drivers/staging/rtl8188eu/hal/phy.c: In function 'rtl88eu_phy_iq_calibrate': >> drivers/staging/rtl8188eu/hal/phy.c:1107:51: warning: variable 'reg_ec4' set but not used [-Wunused-but-set-variable] 1107 | s32 reg_e94, reg_e9c, reg_ea4, reg_eb4, reg_ebc, reg_ec4; | ^~~~~~~ >> drivers/staging/rtl8188eu/hal/phy.c:1106:16: warning: variable 'pathbok' set but not used [-Wunused-but-set-variable] 1106 | bool pathaok, pathbok; | ^~~~~~~ vim +/reg_ec4 +1107 drivers/staging/rtl8188eu/hal/phy.c d9124e064d27a5 navin patidar 2014-09-07 1100 d9124e064d27a5 navin patidar 2014-09-07 1101 void rtl88eu_phy_iq_calibrate(struct adapter *adapt, bool recovery) d9124e064d27a5 navin patidar 2014-09-07 1102 { 177aa53a0d11b2 Ivan Safonov 2016-09-19 1103 struct odm_dm_struct *dm_odm = &adapt->HalData->odmpriv; d9124e064d27a5 navin patidar 2014-09-07 1104 s32 result[4][8]; dee43f7ad325ec Michael Straube 2018-09-27 1105 u8 i, final; d9124e064d27a5 navin patidar 2014-09-07 @1106 bool pathaok, pathbok; 9393d34e4905ff Sudip Mukherjee 2015-06-12 @1107 s32 reg_e94, reg_e9c, reg_ea4, reg_eb4, reg_ebc, reg_ec4; d9124e064d27a5 navin patidar 2014-09-07 1108 bool is12simular, is13simular, is23simular; d9124e064d27a5 navin patidar 2014-09-07 1109 u32 iqk_bb_reg_92c[IQK_BB_REG_NUM] = { d9124e064d27a5 navin patidar 2014-09-07 1110 rOFDM0_XARxIQImbalance, rOFDM0_XBRxIQImbalance, d9124e064d27a5 navin patidar 2014-09-07 1111 rOFDM0_ECCAThreshold, rOFDM0_AGCRSSITable, d9124e064d27a5 navin patidar 2014-09-07 1112 rOFDM0_XATxIQImbalance, rOFDM0_XBTxIQImbalance, d9124e064d27a5 navin patidar 2014-09-07 1113 rOFDM0_XCTxAFE, rOFDM0_XDTxAFE, d9124e064d27a5 navin patidar 2014-09-07 1114 rOFDM0_RxIQExtAnta}; d9124e064d27a5 navin patidar 2014-09-07 1115 d9124e064d27a5 navin patidar 2014-09-07 1116 if (!(dm_odm->SupportAbility & ODM_RF_CALIBRATION)) d9124e064d27a5 navin patidar 2014-09-07 1117 return; d9124e064d27a5 navin patidar 2014-09-07 1118 d9124e064d27a5 navin patidar 2014-09-07 1119 if (recovery) { d9124e064d27a5 navin patidar 2014-09-07 1120 reload_adda_reg(adapt, iqk_bb_reg_92c, d9124e064d27a5 navin patidar 2014-09-07 1121 dm_odm->RFCalibrateInfo.IQK_BB_backup_recover, 9); d9124e064d27a5 navin patidar 2014-09-07 1122 return; d9124e064d27a5 navin patidar 2014-09-07 1123 } d9124e064d27a5 navin patidar 2014-09-07 1124 a793dbe926014e Michael Straube 2018-12-07 1125 memset(result, 0, sizeof(result)); a793dbe926014e Michael Straube 2018-12-07 1126 for (i = 0; i < 8; i += 2) d9124e064d27a5 navin patidar 2014-09-07 1127 result[3][i] = 0x100; a793dbe926014e Michael Straube 2018-12-07 1128 d9124e064d27a5 navin patidar 2014-09-07 1129 final = 0xff; d9124e064d27a5 navin patidar 2014-09-07 1130 pathaok = false; d9124e064d27a5 navin patidar 2014-09-07 1131 pathbok = false; d9124e064d27a5 navin patidar 2014-09-07 1132 is12simular = false; d9124e064d27a5 navin patidar 2014-09-07 1133 is23simular = false; d9124e064d27a5 navin patidar 2014-09-07 1134 is13simular = false; d9124e064d27a5 navin patidar 2014-09-07 1135 d9124e064d27a5 navin patidar 2014-09-07 1136 for (i = 0; i < 3; i++) { fd8745a2293eb9 Martin Kaiser 2021-07-25 1137 phy_iq_calibrate(adapt, result, i, false); d9124e064d27a5 navin patidar 2014-09-07 1138 d9124e064d27a5 navin patidar 2014-09-07 1139 if (i == 1) { d9124e064d27a5 navin patidar 2014-09-07 1140 is12simular = simularity_compare(adapt, result, 0, 1); d9124e064d27a5 navin patidar 2014-09-07 1141 if (is12simular) { d9124e064d27a5 navin patidar 2014-09-07 1142 final = 0; d9124e064d27a5 navin patidar 2014-09-07 1143 break; d9124e064d27a5 navin patidar 2014-09-07 1144 } d9124e064d27a5 navin patidar 2014-09-07 1145 } d9124e064d27a5 navin patidar 2014-09-07 1146 d9124e064d27a5 navin patidar 2014-09-07 1147 if (i == 2) { d9124e064d27a5 navin patidar 2014-09-07 1148 is13simular = simularity_compare(adapt, result, 0, 2); d9124e064d27a5 navin patidar 2014-09-07 1149 if (is13simular) { d9124e064d27a5 navin patidar 2014-09-07 1150 final = 0; d9124e064d27a5 navin patidar 2014-09-07 1151 break; d9124e064d27a5 navin patidar 2014-09-07 1152 } d9124e064d27a5 navin patidar 2014-09-07 1153 is23simular = simularity_compare(adapt, result, 1, 2); d9124e064d27a5 navin patidar 2014-09-07 1154 if (is23simular) d9124e064d27a5 navin patidar 2014-09-07 1155 final = 1; d9124e064d27a5 navin patidar 2014-09-07 1156 else d9124e064d27a5 navin patidar 2014-09-07 1157 final = 3; d9124e064d27a5 navin patidar 2014-09-07 1158 } d9124e064d27a5 navin patidar 2014-09-07 1159 } d9124e064d27a5 navin patidar 2014-09-07 1160 d9124e064d27a5 navin patidar 2014-09-07 1161 for (i = 0; i < 4; i++) { d9124e064d27a5 navin patidar 2014-09-07 1162 reg_e94 = result[i][0]; d9124e064d27a5 navin patidar 2014-09-07 1163 reg_e9c = result[i][1]; d9124e064d27a5 navin patidar 2014-09-07 1164 reg_ea4 = result[i][2]; d9124e064d27a5 navin patidar 2014-09-07 1165 reg_eb4 = result[i][4]; d9124e064d27a5 navin patidar 2014-09-07 1166 reg_ebc = result[i][5]; d9124e064d27a5 navin patidar 2014-09-07 1167 reg_ec4 = result[i][6]; d9124e064d27a5 navin patidar 2014-09-07 1168 } d9124e064d27a5 navin patidar 2014-09-07 1169 d9124e064d27a5 navin patidar 2014-09-07 1170 if (final != 0xff) { d9124e064d27a5 navin patidar 2014-09-07 1171 reg_e94 = result[final][0]; d9124e064d27a5 navin patidar 2014-09-07 1172 reg_e9c = result[final][1]; d9124e064d27a5 navin patidar 2014-09-07 1173 reg_ea4 = result[final][2]; d9124e064d27a5 navin patidar 2014-09-07 1174 reg_eb4 = result[final][4]; d9124e064d27a5 navin patidar 2014-09-07 1175 reg_ebc = result[final][5]; d9124e064d27a5 navin patidar 2014-09-07 1176 dm_odm->RFCalibrateInfo.RegE94 = reg_e94; d9124e064d27a5 navin patidar 2014-09-07 1177 dm_odm->RFCalibrateInfo.RegE9C = reg_e9c; d9124e064d27a5 navin patidar 2014-09-07 1178 dm_odm->RFCalibrateInfo.RegEB4 = reg_eb4; d9124e064d27a5 navin patidar 2014-09-07 1179 dm_odm->RFCalibrateInfo.RegEBC = reg_ebc; d9124e064d27a5 navin patidar 2014-09-07 1180 reg_ec4 = result[final][6]; d9124e064d27a5 navin patidar 2014-09-07 1181 pathaok = true; d9124e064d27a5 navin patidar 2014-09-07 1182 pathbok = true; d9124e064d27a5 navin patidar 2014-09-07 1183 } else { d9124e064d27a5 navin patidar 2014-09-07 1184 dm_odm->RFCalibrateInfo.RegE94 = 0x100; d9124e064d27a5 navin patidar 2014-09-07 1185 dm_odm->RFCalibrateInfo.RegEB4 = 0x100; d9124e064d27a5 navin patidar 2014-09-07 1186 dm_odm->RFCalibrateInfo.RegE9C = 0x0; d9124e064d27a5 navin patidar 2014-09-07 1187 dm_odm->RFCalibrateInfo.RegEBC = 0x0; d9124e064d27a5 navin patidar 2014-09-07 1188 } d9124e064d27a5 navin patidar 2014-09-07 1189 if (reg_e94 != 0) d9124e064d27a5 navin patidar 2014-09-07 1190 patha_fill_iqk(adapt, pathaok, result, final, d9124e064d27a5 navin patidar 2014-09-07 1191 (reg_ea4 == 0)); d9124e064d27a5 navin patidar 2014-09-07 1192 d9124e064d27a5 navin patidar 2014-09-07 1193 if (final < 4) { d9124e064d27a5 navin patidar 2014-09-07 1194 for (i = 0; i < IQK_Matrix_REG_NUM; i++) dee43f7ad325ec Michael Straube 2018-09-27 1195 dm_odm->RFCalibrateInfo.IQKMatrixRegSetting[0].Value[0][i] = result[final][i]; dee43f7ad325ec Michael Straube 2018-09-27 1196 dm_odm->RFCalibrateInfo.IQKMatrixRegSetting[0].bIQKDone = true; d9124e064d27a5 navin patidar 2014-09-07 1197 } d9124e064d27a5 navin patidar 2014-09-07 1198 d9124e064d27a5 navin patidar 2014-09-07 1199 save_adda_registers(adapt, iqk_bb_reg_92c, d9124e064d27a5 navin patidar 2014-09-07 1200 dm_odm->RFCalibrateInfo.IQK_BB_backup_recover, 9); d9124e064d27a5 navin patidar 2014-09-07 1201 } d9124e064d27a5 navin patidar 2014-09-07 1202 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org