Hi Hamza, Thank you for the patch! Yet something to improve: [auto build test ERROR on input/next] [also build test ERROR on linux/master hid/for-next linus/master v5.11-rc7 next-20210125] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Hamza-Farooq/Input-psmouse-add-s... base: https://git.kernel.org/pub/scm/linux/kernel/git/dtor/input.git next config: parisc-randconfig-r004-20210211 (attached as .config) compiler: hppa-linux-gcc (GCC) 9.3.0 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/958fb71223bb82ea01edbcbf4970af1d8... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Hamza-Farooq/Input-psmouse-add-support-for-FocalTech-PS-2-Protocol-v2/20210211-074527 git checkout 958fb71223bb82ea01edbcbf4970af1d888b1050 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=parisc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All error/warnings (new ones prefixed by >>): In file included from include/linux/build_bug.h:5, from include/linux/bits.h:22, from include/linux/bitops.h:5, from drivers/input/mouse/psmouse-base.c:13: drivers/input/mouse/psmouse-base.c: In function 'psmouse_extensions': 1089 | if (psmouse_do_detect(focaltech_v2_detect, | ^~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ drivers/input/mouse/psmouse-base.c:1089:2: note: in expansion of macro 'if' 1089 | if (psmouse_do_detect(focaltech_v2_detect, | ^~ drivers/input/mouse/psmouse-base.c:1089:24: note: each undeclared identifier is reported only once for each function it appears in 1089 | if (psmouse_do_detect(focaltech_v2_detect, | ^~~~~~~~~~~~~~~~~~~ include/linux/compiler.h:58:52: note: in definition of macro '__trace_if_var' 58 | #define __trace_if_var(cond) (__builtin_constant_p(cond) ? (cond) : __trace_if_value(cond)) | ^~~~ drivers/input/mouse/psmouse-base.c:1089:2: note: in expansion of macro 'if' 1089 | if (psmouse_do_detect(focaltech_v2_detect, | ^~ -- 27 | int focaltech_v2_detect(struct psmouse *psmouse, bool set_properties) | ^~~~~~~~~~~~~~~~~~~ drivers/input/mouse/focaltech_v2.c:17:33: warning: 'switch_protocol' defined but not used [-Wunused-const-variable=] 17 | static const struct fte_command switch_protocol[] = { | ^~~~~~~~~~~~~~~ vim +1089 drivers/input/mouse/psmouse-base.c 1052 1053 /* 1054 * psmouse_extensions() probes for any extensions to the basic PS/2 protocol 1055 * the mouse may have. 1056 */ 1057 static int psmouse_extensions(struct psmouse *psmouse, 1058 unsigned int max_proto, bool set_properties) 1059 { 1060 bool synaptics_hardware = false; 1061 int ret; 1062 1063 /* 1064 * Always check for focaltech, this is safe as it uses pnp-id 1065 * matching. 1066 */ 1067 if (psmouse_do_detect(focaltech_detect, 1068 psmouse, false, set_properties)) { 1069 if (max_proto > PSMOUSE_IMEX && 1070 IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH) && 1071 (!set_properties || focaltech_init(psmouse) == 0)) { 1072 return PSMOUSE_FOCALTECH; 1073 } 1074 /* 1075 * Restrict psmouse_max_proto so that psmouse_initialize() 1076 * does not try to reset rate and resolution, because even 1077 * that upsets the device. 1078 * This also causes us to basically fall through to basic 1079 * protocol detection, where we fully reset the mouse, 1080 * and set it up as bare PS/2 protocol device. 1081 */ 1082 psmouse_max_proto = max_proto = PSMOUSE_PS2; 1083 } 1084 1085 /* 1086 * Always check for focaltech-v2, this is safe as it uses pnp-id 1087 * matching. 1088 */ 1090 psmouse, false, set_properties)) { 1091 if (max_proto > PSMOUSE_IMEX && 1092 IS_ENABLED(CONFIG_MOUSE_PS2_FOCALTECH_V2) && 1093 (!set_properties || focaltech_v2_init(psmouse) == 0)) { 1094 return PSMOUSE_FOCALTECH_V2; 1095 } 1096 /* 1097 * Restrict psmouse_max_proto so that psmouse_initialize() 1098 * does not try to reset rate and resolution, because even 1099 * that upsets the device. 1100 * This also causes us to basically fall through to basic 1101 * protocol detection, where we fully reset the mouse, 1102 * and set it up as bare PS/2 protocol device. 1103 */ 1104 psmouse_max_proto = max_proto = PSMOUSE_PS2; 1105 } 1106 1107 /* 1108 * We always check for LifeBook because it does not disturb mouse 1109 * (it only checks DMI information). 1110 */ 1111 if (psmouse_try_protocol(psmouse, PSMOUSE_LIFEBOOK, &max_proto, 1112 set_properties, max_proto > PSMOUSE_IMEX)) 1113 return PSMOUSE_LIFEBOOK; 1114 1115 if (psmouse_try_protocol(psmouse, PSMOUSE_VMMOUSE, &max_proto, 1116 set_properties, max_proto > PSMOUSE_IMEX)) 1117 return PSMOUSE_VMMOUSE; 1118 1119 /* 1120 * Try Kensington ThinkingMouse (we try first, because Synaptics 1121 * probe upsets the ThinkingMouse). 1122 */ 1123 if (max_proto > PSMOUSE_IMEX && 1124 psmouse_try_protocol(psmouse, PSMOUSE_THINKPS, &max_proto, 1125 set_properties, true)) { 1126 return PSMOUSE_THINKPS; 1127 } 1128 1129 /* 1130 * Try Synaptics TouchPad. Note that probing is done even if 1131 * Synaptics protocol support is disabled in config - we need to 1132 * know if it is Synaptics so we can reset it properly after 1133 * probing for IntelliMouse. 1134 */ 1135 if (max_proto > PSMOUSE_PS2 && 1136 psmouse_do_detect(synaptics_detect, 1137 psmouse, false, set_properties)) { 1138 synaptics_hardware = true; 1139 1140 if (max_proto > PSMOUSE_IMEX) { 1141 /* 1142 * Try activating protocol, but check if support is 1143 * enabled first, since we try detecting Synaptics 1144 * even when protocol is disabled. 1145 */ 1146 if (IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS) || 1147 IS_ENABLED(CONFIG_MOUSE_PS2_SYNAPTICS_SMBUS)) { 1148 if (!set_properties) 1149 return PSMOUSE_SYNAPTICS; 1150 1151 ret = synaptics_init(psmouse); 1152 if (ret >= 0) 1153 return ret; 1154 } 1155 1156 /* 1157 * Some Synaptics touchpads can emulate extended 1158 * protocols (like IMPS/2). Unfortunately 1159 * Logitech/Genius probes confuse some firmware 1160 * versions so we'll have to skip them. 1161 */ 1162 max_proto = PSMOUSE_IMEX; 1163 } 1164 1165 /* 1166 * Make sure that touchpad is in relative mode, gestures 1167 * (taps) are enabled. 1168 */ 1169 synaptics_reset(psmouse); 1170 } 1171 1172 /* 1173 * Try Cypress Trackpad. We must try it before Finger Sensing Pad 1174 * because Finger Sensing Pad probe upsets some modules of Cypress 1175 * Trackpads. 1176 */ 1177 if (max_proto > PSMOUSE_IMEX && 1178 psmouse_try_protocol(psmouse, PSMOUSE_CYPRESS, &max_proto, 1179 set_properties, true)) { 1180 return PSMOUSE_CYPRESS; 1181 } 1182 1183 /* Try ALPS TouchPad */ 1184 if (max_proto > PSMOUSE_IMEX) { 1185 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); 1186 if (psmouse_try_protocol(psmouse, PSMOUSE_ALPS, 1187 &max_proto, set_properties, true)) 1188 return PSMOUSE_ALPS; 1189 } 1190 1191 /* Try OLPC HGPK touchpad */ 1192 if (max_proto > PSMOUSE_IMEX && 1193 psmouse_try_protocol(psmouse, PSMOUSE_HGPK, &max_proto, 1194 set_properties, true)) { 1195 return PSMOUSE_HGPK; 1196 } 1197 1198 /* Try Elantech touchpad */ 1199 if (max_proto > PSMOUSE_IMEX && 1200 psmouse_try_protocol(psmouse, PSMOUSE_ELANTECH, 1201 &max_proto, set_properties, false)) { 1202 if (!set_properties) 1203 return PSMOUSE_ELANTECH; 1204 1205 ret = elantech_init(psmouse); 1206 if (ret >= 0) 1207 return ret; 1208 } 1209 1210 if (max_proto > PSMOUSE_IMEX) { 1211 if (psmouse_try_protocol(psmouse, PSMOUSE_GENPS, 1212 &max_proto, set_properties, true)) 1213 return PSMOUSE_GENPS; 1214 1215 if (psmouse_try_protocol(psmouse, PSMOUSE_PS2PP, 1216 &max_proto, set_properties, true)) 1217 return PSMOUSE_PS2PP; 1218 1219 if (psmouse_try_protocol(psmouse, PSMOUSE_TRACKPOINT, 1220 &max_proto, set_properties, true)) 1221 return PSMOUSE_TRACKPOINT; 1222 1223 if (psmouse_try_protocol(psmouse, PSMOUSE_TOUCHKIT_PS2, 1224 &max_proto, set_properties, true)) 1225 return PSMOUSE_TOUCHKIT_PS2; 1226 } 1227 1228 /* 1229 * Try Finger Sensing Pad. We do it here because its probe upsets 1230 * Trackpoint devices (causing TP_READ_ID command to time out). 1231 */ 1232 if (max_proto > PSMOUSE_IMEX && 1233 psmouse_try_protocol(psmouse, PSMOUSE_FSP, 1234 &max_proto, set_properties, true)) { 1235 return PSMOUSE_FSP; 1236 } 1237 1238 /* 1239 * Reset to defaults in case the device got confused by extended 1240 * protocol probes. Note that we follow up with full reset because 1241 * some mice put themselves to sleep when they see PSMOUSE_RESET_DIS. 1242 */ 1243 ps2_command(&psmouse->ps2dev, NULL, PSMOUSE_CMD_RESET_DIS); 1244 psmouse_reset(psmouse); 1245 1246 if (max_proto >= PSMOUSE_IMEX && 1247 psmouse_try_protocol(psmouse, PSMOUSE_IMEX, 1248 &max_proto, set_properties, true)) { 1249 return PSMOUSE_IMEX; 1250 } 1251 1252 if (max_proto >= PSMOUSE_IMPS && 1253 psmouse_try_protocol(psmouse, PSMOUSE_IMPS, 1254 &max_proto, set_properties, true)) { 1255 return PSMOUSE_IMPS; 1256 } 1257 1258 /* 1259 * Okay, all failed, we have a standard mouse here. The number of 1260 * the buttons is still a question, though. We assume 3. 1261 */ 1262 psmouse_try_protocol(psmouse, PSMOUSE_PS2, 1263 &max_proto, set_properties, true); 1264 1265 if (synaptics_hardware) { 1266 /* 1267 * We detected Synaptics hardware but it did not respond to 1268 * IMPS/2 probes. We need to reset the touchpad because if 1269 * there is a track point on the pass through port it could 1270 * get disabled while probing for protocol extensions. 1271 */ 1272 psmouse_reset(psmouse); 1273 } 1274 1275 return PSMOUSE_PS2; 1276 } 1277 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org