Hi Rodrigo, FYI, the error/warning still remains. tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: f1baf68e1383f6ed93eb9cff2866d46562607a43 commit: 96ee63730fa30614e943ac352ef772be49a712d9 drm/amd/display: Add control mechanism for FPU date: 6 months ago config: powerpc64-randconfig-r031-20220211 (https://download.01.org/0day-ci/archive/20220212/202202120657.ZqI8ITCA-lk...) compiler: powerpc64-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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit... git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 96ee63730fa30614e943ac352ef772be49a712d9 # 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=powerpc SHELL=/bin/bash drivers/gpu/drm/ 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 >>): drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c: In function 'dc_fpu_begin': 61 | enable_kernel_altivec(); | ^~~~~~~~~~~~~~~~~~~~~ | enable_kernel_vsx drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c: In function 'dc_fpu_end': 89 | disable_kernel_altivec(); | ^~~~~~~~~~~~~~~~~~~~~~ | disable_kernel_vsx cc1: some warnings being treated as errors vim +61 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c 35 36 /** 37 * dc_fpu_begin - Enables FPU protection 38 * @function_name: A string containing the function name for debug purposes 39 * (usually __func__) 40 * 41 * @line: A line number where DC_FP_START was invoked for debug purpose 42 * (usually __LINE__) 43 * 44 * This function is responsible for managing the use of kernel_fpu_begin() with 45 * the advantage of providing an event trace for debugging. 46 * 47 * Note: Do not call this function directly; always use DC_FP_START(). 48 */ 49 void dc_fpu_begin(const char *function_name, const int line) 50 { 51 TRACE_DCN_FPU(true, function_name, line); 52 53 #if defined(CONFIG_X86) 54 kernel_fpu_begin(); 55 #elif defined(CONFIG_PPC64) 56 if (cpu_has_feature(CPU_FTR_VSX_COMP)) { 57 preempt_disable(); 58 enable_kernel_vsx(); 59 } else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) { 60 preempt_disable(); 62 } else if (!cpu_has_feature(CPU_FTR_FPU_UNAVAILABLE)) { 63 preempt_disable(); 64 enable_kernel_fp(); 65 } 66 #endif 67 } 68 69 /** 70 * dc_fpu_end - Disable FPU protection 71 * @function_name: A string containing the function name for debug purposes 72 * @line: A-line number where DC_FP_END was invoked for debug purpose 73 * 74 * This function is responsible for managing the use of kernel_fpu_end() with 75 * the advantage of providing an event trace for debugging. 76 * 77 * Note: Do not call this function directly; always use DC_FP_END(). 78 */ 79 void dc_fpu_end(const char *function_name, const int line) 80 { 81 TRACE_DCN_FPU(false, function_name, line); 82 #if defined(CONFIG_X86) 83 kernel_fpu_end(); 84 #elif defined(CONFIG_PPC64) 85 if (cpu_has_feature(CPU_FTR_VSX_COMP)) { 86 disable_kernel_vsx(); 87 preempt_enable(); 88 } else if (cpu_has_feature(CPU_FTR_ALTIVEC_COMP)) { --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org