Hi Huang, kernel test robot noticed the following build warnings: [auto build test WARNING on kvm/queue] [also build test WARNING on kvmarm/next tip/perf/core linus/master v6.5-rc5 next-20230808] [cannot apply to acme/perf/core kvm/linux-next] [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/Huang-Shijie/perf-core-fix-the-bug-in-the-event-multiplexing/20230809-094637 base: https://git.kernel.org/pub/scm/virt/kvm/kvm.git queue patch link: https://lore.kernel.org/r/20230809013953.7692-1-shijie%40os.amperecomputing.com patch subject: [PATCH] perf/core: fix the bug in the event multiplexing config: loongarch-allyesconfig (https://download.01.org/0day-ci/archive/20230809/202308091142.nsjuu1ek-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230809/202308091142.nsjuu1ek-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/202308091142.nsjuu1ek-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): >> kernel/events/core.c:4232:13: warning: no previous prototype for 'arch_perf_rotate_pmu_set' [-Wmissing-prototypes] 4232 | void __weak arch_perf_rotate_pmu_set(void) | ^~~~~~~~~~~~~~~~~~~~~~~~ vim +/arch_perf_rotate_pmu_set +4232 kernel/events/core.c 4231 > 4232 void __weak arch_perf_rotate_pmu_set(void) 4233 { 4234 } 4235 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
