Hi Perry, I love your patch! Perhaps something to improve: [auto build test WARNING on rafael-pm/linux-next] [also build test WARNING on linus/master v6.1-rc7 next-20221129] [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/Perry-Yuan/Implement-AMD-Pstate-EPP-Driver/20221129-011556 base: https://git.kernel.org/pub/scm/linux/kernel/git/rafael/linux-pm.git linux-next patch link: https://lore.kernel.org/r/20221128170314.2276636-4-perry.yuan%40amd.com patch subject: [PATCH v5 3/9] cpufreq: amd_pstate: implement Pstate EPP support for the AMD processors config: i386-randconfig-a002-20221128 compiler: gcc-11 (Debian 11.3.0-8) 11.3.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/e353f533252a9e07649872be9e9012c4500d9133 git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Perry-Yuan/Implement-AMD-Pstate-EPP-Driver/20221129-011556 git checkout e353f533252a9e07649872be9e9012c4500d9133 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=i386 SHELL=/bin/bash drivers/cpufreq/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): In file included from drivers/cpufreq/amd-pstate-ut.c:29: >> include/linux/amd-pstate.h:150:21: warning: 'epp_values' defined but not used [-Wunused-variable] 150 | static unsigned int epp_values[] = { | ^~~~~~~~~~ >> include/linux/amd-pstate.h:141:27: warning: 'energy_perf_strings' defined but not used [-Wunused-const-variable=] 141 | static const char * const energy_perf_strings[] = { | ^~~~~~~~~~~~~~~~~~~ vim +/epp_values +150 include/linux/amd-pstate.h 140 > 141 static const char * const energy_perf_strings[] = { 142 [EPP_INDEX_DEFAULT] = "default", 143 [EPP_INDEX_PERFORMANCE] = "performance", 144 [EPP_INDEX_BALANCE_PERFORMANCE] = "balance_performance", 145 [EPP_INDEX_BALANCE_POWERSAVE] = "balance_power", 146 [EPP_INDEX_POWERSAVE] = "power", 147 NULL 148 }; 149 > 150 static unsigned int epp_values[] = { 151 [EPP_INDEX_DEFAULT] = 0, 152 [EPP_INDEX_PERFORMANCE] = AMD_CPPC_EPP_PERFORMANCE, 153 [EPP_INDEX_BALANCE_PERFORMANCE] = AMD_CPPC_EPP_BALANCE_PERFORMANCE, 154 [EPP_INDEX_BALANCE_POWERSAVE] = AMD_CPPC_EPP_BALANCE_POWERSAVE, 155 [EPP_INDEX_POWERSAVE] = AMD_CPPC_EPP_POWERSAVE, 156 }; 157 -- 0-DAY CI Kernel Test Service https://01.org/lkp