Hi Zhang, [FYI, it's a private test report for your RFC patch.] [auto build test WARNING on pm/linux-next] [also build test WARNING on linus/master v5.7-rc1 next-20200413] [cannot apply to soc-thermal/next] [if your patch is applied to the wrong git tree, please drop us a note to help improve the system. BTW, we also suggest to use '--base' option to specify the base tree in git format-patch, please see https://stackoverflow.com/a/37406982] url: https://github.com/0day-ci/linux/commits/Zhang-Rui/thermal-rename-thermal... base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next If you fix the issue, kindly add following tag as appropriate Reported-by: kbuild test robot <lkp(a)intel.com&gt; cppcheck warnings: (new ones prefixed by >>) thermal_cdev_stats_update_max(pr->cdev); ^ drivers/acpi/processor_thermal.c:156:6: note: Assuming that condition 'if(pr)' is not redundant if (pr) ^ drivers/acpi/processor_thermal.c:154:38: note: Assignment 'pr=per_cpu(processors,policy->cpu)', assigned value is 0 struct acpi_processor *pr = per_cpu(processors, policy->cpu); ^ drivers/acpi/processor_thermal.c:158:33: note: Null pointer dereference thermal_cdev_stats_update_max(pr->cdev); ^ vim +158 drivers/acpi/processor_thermal.c 148 149 void acpi_thermal_cpufreq_exit(struct cpufreq_policy *policy) 150 { 151 unsigned int cpu; 152 153 for_each_cpu(cpu, policy->related_cpus) { 154 struct acpi_processor *pr = per_cpu(processors, policy->cpu); 155 156 if (pr) 157 freq_qos_remove_request(&pr->thermal_req); 159 } 160 } 161 #else /* ! CONFIG_CPU_FREQ */ 162 static int cpufreq_get_max_state(unsigned int cpu) 163 { 164 return 0; 165 } 166 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org