tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 69119673bd50b176ded34032fadd41530fb5af21 commit: 9c7c85f7ea1fe55e9406858e3ca32a51494bd02e drm/amdgpu: add pmu counters date: 12 months ago config: arc-randconfig-r036-20200617 (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 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 git checkout 9c7c85f7ea1fe55e9406858e3ca32a51494bd02e # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>, old ones prefixed by <<): drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c: In function 'amdgpu_pmu_init': 249 | int ret = 0; | ^~~ In file included from drivers/gpu/drm/amd/amdgpu/../display/dc/dc_types.h:29, from drivers/gpu/drm/amd/amdgpu/../display/dc/dm_services_types.h:30, from drivers/gpu/drm/amd/amdgpu/../include/dm_pp_interface.h:26, from drivers/gpu/drm/amd/amdgpu/amdgpu.h:53, from drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:28: At top level: drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:76:32: warning: 'dc_fixpt_ln2_div_2' defined but not used [-Wunused-const-variable=] 76 | static const struct fixed31_32 dc_fixpt_ln2_div_2 = { 1488522236LL }; | ^~~~~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:75:32: warning: 'dc_fixpt_ln2' defined but not used [-Wunused-const-variable=] 75 | static const struct fixed31_32 dc_fixpt_ln2 = { 2977044471LL }; | ^~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:74:32: warning: 'dc_fixpt_e' defined but not used [-Wunused-const-variable=] 74 | static const struct fixed31_32 dc_fixpt_e = { 11674931555LL }; | ^~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:73:32: warning: 'dc_fixpt_two_pi' defined but not used [-Wunused-const-variable=] 73 | static const struct fixed31_32 dc_fixpt_two_pi = { 26986075409LL }; | ^~~~~~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:72:32: warning: 'dc_fixpt_pi' defined but not used [-Wunused-const-variable=] 72 | static const struct fixed31_32 dc_fixpt_pi = { 13493037705LL }; | ^~~~~~~~~~~ drivers/gpu/drm/amd/amdgpu/../display/include/fixed31_32.h:67:32: warning: 'dc_fixpt_zero' defined but not used [-Wunused-const-variable=] 67 | static const struct fixed31_32 dc_fixpt_zero = { 0 }; | ^~~~~~~~~~~~~ In file included from include/linux/perf_event.h:25, from drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c:26: arch/arc/include/asm/perf_event.h:130:23: warning: 'arc_pmu_cache_map' defined but not used [-Wunused-const-variable=] 130 | static const unsigned arc_pmu_cache_map[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = { | ^~~~~~~~~~~~~~~~~ arch/arc/include/asm/perf_event.h:95:27: warning: 'arc_pmu_ev_hw_map' defined but not used [-Wunused-const-variable=] 95 | static const char * const arc_pmu_ev_hw_map[] = { | ^~~~~~~~~~~~~~~~~ vim +/ret +249 drivers/gpu/drm/amd/amdgpu/amdgpu_pmu.c 245 246 /* init amdgpu_pmu */ 247 int amdgpu_pmu_init(struct amdgpu_device *adev) 248 { 250 251 switch (adev->asic_type) { 252 case CHIP_VEGA20: 253 /* init df */ 254 ret = init_pmu_by_type(adev, df_v3_6_attr_groups, 255 "DF", "amdgpu_df", PERF_TYPE_AMDGPU_DF, 256 DF_V3_6_MAX_COUNTERS); 257 258 /* other pmu types go here*/ 259 break; 260 default: 261 return 0; 262 } 263 264 return 0; 265 } 266 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org