Hi Cristian, FYI, the error/warning still remains. tree: https://github.com/Freescale/linux-fslc pr/490 head: e1744bcfc0ba973d84a580a510206e682c10cfcb commit: 367122823dab7b07ad76fb94a06c7a3030fe57b6 [11385/15241] regulator: add SCMI driver config: arm-allyesconfig (attached as .config) compiler: arm-linux-gnueabi-gcc (GCC) 11.2.0 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/Freescale/linux-fslc/commit/367122823dab7b07ad76fb94a0... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc pr/490 git checkout 367122823dab7b07ad76fb94a06c7a3030fe57b6 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): drivers/regulator/scmi-regulator.c: In function 'scmi_regulator_common_init': 237 | sreg->desc.of_match_full_name = true; | ^ vim +237 drivers/regulator/scmi-regulator.c 203 204 static int scmi_regulator_common_init(struct scmi_regulator *sreg) 205 { 206 int ret; 207 const struct scmi_handle *handle = sreg->sdev->handle; 208 struct device *dev = &sreg->sdev->dev; 209 const struct scmi_voltage_info *vinfo; 210 211 vinfo = handle->voltage_ops->info_get(handle, sreg->id); 212 if (!vinfo) { 213 dev_warn(dev, "Failure to get voltage domain %d\n", 214 sreg->id); 215 return -ENODEV; 216 } 217 218 /* 219 * Regulator framework does not fully support negative voltages 220 * so we discard any voltage domain reported as supporting negative 221 * voltages: as a consequence each levels_uv entry is guaranteed to 222 * be non-negative from here on. 223 */ 224 if (vinfo->negative_volts_allowed) { 225 dev_warn(dev, "Negative voltages NOT supported...skip %s\n", 226 sreg->of_node->full_name); 227 return -EOPNOTSUPP; 228 } 229 230 sreg->desc.name = devm_kasprintf(dev, GFP_KERNEL, "%s", vinfo->name); 231 if (!sreg->desc.name) 232 return -ENOMEM; 233 234 sreg->desc.id = sreg->id; 235 sreg->desc.type = REGULATOR_VOLTAGE; 236 sreg->desc.owner = THIS_MODULE; 238 sreg->desc.of_match = sreg->of_node->full_name; 239 sreg->desc.regulators_node = "regulators"; 240 if (vinfo->segmented) 241 ret = scmi_config_linear_regulator_mappings(sreg, vinfo); 242 else 243 ret = scmi_config_discrete_regulator_mappings(sreg, vinfo); 244 if (ret) 245 return ret; 246 247 /* 248 * Using the scmi device here to have DT searched from Voltage 249 * protocol node down. 250 */ 251 sreg->conf.dev = dev; 252 253 /* Store for later retrieval via rdev_get_drvdata() */ 254 sreg->conf.driver_data = sreg; 255 256 return 0; 257 } 258 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org