tree: https://gitlab.freedesktop.org/agd5f/linux.git drm-next head: 63e583c8843f305a3e334a96d5de00435f4d38a2 commit: d9eb8fea6862e63421f7b9c93e32bef348488c41 [135/190] drm/amd/display: Drop DCN for DP2.x logic config: sparc64-buildonly-randconfig-r002-20220124 (https://download.01.org/0day-ci/archive/20220126/202201261234.rQipESIN-lk...) compiler: sparc64-linux-gcc (GCC) 11.2.0 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 remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git git fetch --no-tags agd5f drm-next git checkout d9eb8fea6862e63421f7b9c93e32bef348488c41 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sparc64 SHELL=/bin/bash drivers/gpu/ 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 >>): 805 | void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable) | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ vim +/dm_helpers_enable_periodic_detection +805 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/amdgpu_dm_helpers.c ac02dc34258569 Eric Yang 2021-08-25 804 ac02dc34258569 Eric Yang 2021-08-25 @805 void dm_helpers_enable_periodic_detection(struct dc_context *ctx, bool enable) :::::: The code at line 805 was first introduced by commit :::::: ac02dc34258569b793b78483154ca336f103946f drm/amd/display: Add periodic detection when zstate is enabled :::::: TO: Eric Yang <Eric.Yang2(a)amd.com&gt; :::::: CC: Alex Deucher <alexander.deucher(a)amd.com&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org