[kbuild-all] [peterz-queue:perf/core 7/8] arch/x86/events/amd/ibs.c:829:5: error: redefinition of 'get_ibs_caps'

tree: https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git perf/core head: 0b8f94ea282357a79781d10024708c2cf0ff5305 commit: 10684f2b277c733c018c5d07ddb4aa980ba4fcc5 [7/8] perf/amd/uncore: Allow the driver to be built as a module config: i386-randconfig-a011-20210818 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project d2b574a4dea5b718e4386bf2e26af0126e5978ce) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git/commit/?... git remote add peterz-queue https://git.kernel.org/pub/scm/linux/kernel/git/peterz/queue.git git fetch --no-tags peterz-queue perf/core git checkout 10684f2b277c733c018c5d07ddb4aa980ba4fcc5 # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross O=build_dir ARCH=i386 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All errors (new ones prefixed by >>): u32 get_ibs_caps(void) ^ arch/x86/include/asm/perf_event.h:426:19: note: previous definition is here static inline u32 get_ibs_caps(void) { return 0; } ^ return !setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_NMI, 1); ^ arch/x86/events/amd/ibs.c:843:10: error: implicit declaration of function 'setup_APIC_eilvt' [-Werror,-Wimplicit-function-declaration] return !setup_APIC_eilvt(offset, 0, 0, 1); ^ arch/x86/events/amd/ibs.c:987:7: error: implicit declaration of function 'setup_APIC_eilvt' [-Werror,-Wimplicit-function-declaration] if (!setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_NMI, 0)) ^ arch/x86/events/amd/ibs.c:1000:3: error: implicit declaration of function 'setup_APIC_eilvt' [-Werror,-Wimplicit-function-declaration] setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_FIX, 1); ^ 5 errors generated. vim +/get_ibs_caps +829 arch/x86/events/amd/ibs.c b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 828 b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 @829 u32 get_ibs_caps(void) b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 830 { b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 831 return ibs_caps; b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 832 } b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 833 b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 834 EXPORT_SYMBOL(get_ibs_caps); b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 835 b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 836 static inline int get_eilvt(int offset) b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 837 { b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 @838 return !setup_APIC_eilvt(offset, 0, APIC_EILVT_MSG_NMI, 1); b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 839 } b716916679e720 arch/x86/kernel/cpu/perf_event_amd_ibs.c Robert Richter 2011-09-21 840 :::::: The code at line 829 was first introduced by commit :::::: b716916679e72054d436afadce2f94dcad71cfad perf, x86: Implement IBS initialization :::::: TO: Robert Richter <robert.richter(a)amd.com&gt; :::::: CC: Ingo Molnar <mingo(a)elte.hu&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org