Hi Sumit, kernel test robot noticed the following build warnings: [auto build test WARNING on rafael-pm/linux-next] [also build test WARNING on linus/master v6.6-rc1 next-20230913] [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#_base_tree_information] url: https://github.com/intel-lab-lkp/linux/commits/Sumit-Gupta/ACPI-thermal-Add-Thermal-fast-Sampling-Period-_TFP-support/20230914-004929 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next patch link: https://lore.kernel.org/r/20230913164659.9345-3-sumitg%40nvidia.com patch subject: [Patch v2 2/2] ACPI: processor: reduce CPUFREQ thermal reduction pctg for Tegra241 config: arm64-defconfig (https://download.01.org/0day-ci/archive/20230914/202309141006.XkUm1rIu-lkp@xxxxxxxxx/config) compiler: aarch64-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20230914/202309141006.XkUm1rIu-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/202309141006.XkUm1rIu-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> drivers/acpi/processor_thermal.c:141:6: warning: no previous prototype for 'acpi_thermal_cpufreq_config_nvidia' [-Wmissing-prototypes] 141 | void acpi_thermal_cpufreq_config_nvidia(void) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/acpi_thermal_cpufreq_config_nvidia +141 drivers/acpi/processor_thermal.c 140 > 141 void acpi_thermal_cpufreq_config_nvidia(void) 142 { 143 #ifdef CONFIG_HAVE_ARM_SMCCC_DISCOVERY 144 s32 soc_id = arm_smccc_get_soc_id_version(); 145 146 /* Check JEP106 code for NVIDIA Tegra241 chip (036b:0241) */ 147 if ((soc_id < 0) || (soc_id != SMCCC_SOC_ID_T241)) 148 return; 149 150 /* Reduce the CPUFREQ Thermal reduction percentage to 5% */ 151 cpufreq_thermal_pctg = 5; 152 153 /* 154 * Derive the MAX_STEP from minimum throttle percentage so that the reduction 155 * percentage doesn't end up becoming negative. Also, cap the MAX_STEP so that 156 * the CPU performance doesn't become 0. 157 */ 158 cpufreq_thermal_max_step = ((100 / cpufreq_thermal_pctg) - 1); 159 #endif 160 } 161 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
