Hi Dapeng, kernel test robot noticed the following build warnings: [auto build test WARNING on next-20230808] [cannot apply to kvm/queue acme/perf/core tip/perf/core kvm/linux-next v6.5-rc5 v6.5-rc4 v6.5-rc3 linus/master v6.5-rc5] [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/Dapeng-Mi/KVM-x86-pmu-Support-PMU-fixed-counter-3/20230809-030457 base: next-20230808 patch link: https://lore.kernel.org/r/20230808063111.1870070-9-dapeng1.mi%40linux.intel.com patch subject: [PATCH RFV v2 08/13] perf/core: Add new function perf_event_topdown_metrics() config: loongarch-allnoconfig (https://download.01.org/0day-ci/archive/20230809/202308090447.HY139um6-lkp@xxxxxxxxx/config) compiler: loongarch64-linux-gcc (GCC) 12.3.0 reproduce: (https://download.01.org/0day-ci/archive/20230809/202308090447.HY139um6-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/202308090447.HY139um6-lkp@xxxxxxxxx/ All warnings (new ones prefixed by >>): In file included from include/linux/trace_events.h:10, from include/trace/syscall.h:7, from include/linux/syscalls.h:90, from arch/loongarch/mm/cache.c:17: >> include/linux/perf_event.h:1793:53: warning: 'struct td_metrics' declared inside parameter list will not be visible outside of this definition or declaration 1793 | struct td_metrics *value) | ^~~~~~~~~~ -- In file included from include/linux/trace_events.h:10, from include/trace/syscall.h:7, from include/linux/syscalls.h:90, from include/linux/entry-common.h:7, from arch/loongarch/mm/fault.c:13: >> include/linux/perf_event.h:1793:53: warning: 'struct td_metrics' declared inside parameter list will not be visible outside of this definition or declaration 1793 | struct td_metrics *value) | ^~~~~~~~~~ arch/loongarch/mm/fault.c:256:27: warning: no previous prototype for 'do_page_fault' [-Wmissing-prototypes] 256 | asmlinkage void __kprobes do_page_fault(struct pt_regs *regs, | ^~~~~~~~~~~~~ vim +1793 include/linux/perf_event.h 1791 1792 static inline int perf_event_topdown_metrics(struct perf_event *event, > 1793 struct td_metrics *value) 1794 { 1795 return 0; 1796 } 1797 #endif 1798 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
