tree: git://people.freedesktop.org/~agd5f/linux.git amd-20.45 head: a3950d94b046fb206e58fd3ec717f071c0203ba3 commit: 4978452e875a60112754d1247480cd76321e3ff9 [630/2427] drm/amdkcl: generate config.h config: arc-randconfig-s031-20201214 (attached as .config) compiler: arc-elf-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-184-g1b896707-dirty git remote add radeon-alex git://people.freedesktop.org/~agd5f/linux.git git fetch --no-tags radeon-alex amd-20.45 git checkout 4978452e875a60112754d1247480cd76321e3ff9 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=arc If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c:103:17: sparse: expected restricted __poll_t ( *poll )( ... ) drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c:103:17: sparse: got unsigned int ( * )( ... ) -- drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:158:9: sparse: sparse: incompatible types in conditional expression (different base types): drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:158:9: sparse: void drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:158:9: sparse: int drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:529:5: sparse: sparse: symbol 'psp_ta_invoke' was not declared. Should it be static? drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1899:21: sparse: expected void volatile [noderef] <asn:2> *addr drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1899:21: sparse: got void *[assigned] cpu_addr drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:305:15: sparse: sparse: memset with byte count of 1048576 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:407:15: sparse: sparse: memset with byte count of 1048576 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:563:15: sparse: sparse: memset with byte count of 1048576 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:703:15: sparse: sparse: memset with byte count of 1048576 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:877:15: sparse: sparse: memset with byte count of 1048576 drivers/gpu/drm/amd/amdgpu/amdgpu_psp.c:1024:15: sparse: sparse: memset with byte count of 1048576 -- drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.c: note: in included file: drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.h:61:9: sparse: sparse: preprocessor token REG_SET redefined drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.c: note: in included file (through drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu.h, drivers/gpu/drm/amd/backport/backport.h, builtin): drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.c: note: in included file: drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.h:112:9: sparse: sparse: preprocessor token REG_GET redefined drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.c: note: in included file (through drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu.h, drivers/gpu/drm/amd/backport/backport.h, builtin): drivers/gpu/drm/amd/amdgpu/amdgpu.h:1083:9: sparse: this was the original definition -- drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c: note: in included file: drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.h:61:9: sparse: sparse: preprocessor token REG_SET redefined drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c: note: in included file (through drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu.h, drivers/gpu/drm/amd/backport/backport.h, builtin): drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c: note: in included file: drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.h:112:9: sparse: sparse: preprocessor token REG_GET redefined drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn20.c: note: in included file (through drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu.h, drivers/gpu/drm/amd/backport/backport.h, builtin): drivers/gpu/drm/amd/amdgpu/amdgpu.h:1083:9: sparse: this was the original definition -- drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn21.c: note: in included file: drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.h:61:9: sparse: sparse: preprocessor token REG_SET redefined drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn21.c: note: in included file (through drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu.h, drivers/gpu/drm/amd/backport/backport.h, builtin): drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn21.c: note: in included file: drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_reg.h:112:9: sparse: sparse: preprocessor token REG_GET redefined drivers/gpu/drm/amd/amdgpu/../display/dmub/src/dmub_dcn21.c: note: in included file (through drivers/gpu/drm/amd/backport/include/kcl/kcl_amdgpu.h, drivers/gpu/drm/amd/backport/backport.h, builtin): drivers/gpu/drm/amd/amdgpu/amdgpu.h:1083:9: sparse: this was the original definition vim +103 drivers/gpu/drm/amd/amdgpu/amdgpu_sem.c 641803ba0aabf8d Kevin Wang 2018-08-30 100 641803ba0aabf8d Kevin Wang 2018-08-30 101 static const struct file_operations amdgpu_sem_fops = { 641803ba0aabf8d Kevin Wang 2018-08-30 102 .release = amdgpu_sem_release, 641803ba0aabf8d Kevin Wang 2018-08-30 @103 .poll = amdgpu_sem_poll, 641803ba0aabf8d Kevin Wang 2018-08-30 104 .unlocked_ioctl = amdgpu_sem_file_ioctl, 641803ba0aabf8d Kevin Wang 2018-08-30 105 .compat_ioctl = amdgpu_sem_file_ioctl, 641803ba0aabf8d Kevin Wang 2018-08-30 106 }; 641803ba0aabf8d Kevin Wang 2018-08-30 107 641803ba0aabf8d Kevin Wang 2018-08-30 108 :::::: The code at line 103 was first introduced by commit :::::: 641803ba0aabf8d823eb6cf6667dda3fdca58872 drm/amdgpu: [hybrid] add semaphore object support :::::: TO: Kevin Wang <Kevin1.Wang(a)amd.com&gt; :::::: CC: Flora Cui <flora.cui(a)amd.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org