Hi, Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on tip/perf/core] [also build test WARNING on tip/master linux/master linus/master v5.12-rc7 next-20210413] [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/kan-liang-linux-intel-com/perf-x86-Move-cpuc-running-into-P4-specific-code/20210414-030649 base: https://git.kernel.org/pub/scm/linux/kernel/git/tip/tip.git cface0326a6c2ae5c8f47bd466f07624b3e348a7 config: x86_64-randconfig-a014-20210413 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 9829f5e6b1bca9b61efc629770d28bb9014dec45) 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 # install x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu # https://github.com/0day-ci/linux/commit/83f02393e1b5a2723294d8697f4fd5473d70602c git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review kan-liang-linux-intel-com/perf-x86-Move-cpuc-running-into-P4-specific-code/20210414-030649 git checkout 83f02393e1b5a2723294d8697f4fd5473d70602c # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> arch/x86/events/core.c:2309:6: warning: no previous prototype for function >> 'x86_pmu_clear_dirty_counters' [-Wmissing-prototypes] void x86_pmu_clear_dirty_counters(void) ^ arch/x86/events/core.c:2309:1: note: declare 'static' if the function is not intended to be used outside of this translation unit void x86_pmu_clear_dirty_counters(void) ^ static 1 warning generated. vim +/x86_pmu_clear_dirty_counters +2309 arch/x86/events/core.c 2308 > 2309 void x86_pmu_clear_dirty_counters(void) 2310 { 2311 struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); 2312 int i; 2313 2314 if (bitmap_empty(cpuc->dirty, X86_PMC_IDX_MAX)) 2315 return; 2316 2317 /* Don't need to clear the assigned counter. */ 2318 for (i = 0; i < cpuc->n_events; i++) 2319 __clear_bit(cpuc->assign[i], cpuc->dirty); 2320 2321 for_each_set_bit(i, cpuc->dirty, X86_PMC_IDX_MAX) { 2322 /* Metrics and fake events don't have corresponding HW counters. */ 2323 if (is_metric_idx(i) || (i == INTEL_PMC_IDX_FIXED_VLBR)) 2324 continue; 2325 else if (i >= INTEL_PMC_IDX_FIXED) 2326 wrmsrl(MSR_ARCH_PERFMON_FIXED_CTR0 + (i - INTEL_PMC_IDX_FIXED), 0); 2327 else 2328 wrmsrl(x86_pmu_event_addr(i), 0); 2329 } 2330 2331 bitmap_zero(cpuc->dirty, X86_PMC_IDX_MAX); 2332 } 2333 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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