Hi Rodrigo, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.14-rc1 next-20210713] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/Rodrigo-Siqueira/drm-amd-display... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 7fef2edf7cc753b51f7ccc74993971b0a9c81eca config: x86_64-randconfig-a014-20210713 (attached as .config) compiler: gcc-9 (Debian 9.3.0-22) 9.3.0 reproduce (this is a W=1 build): # https://github.com/0day-ci/linux/commit/86e864484b1781d5a294660fe92f5ba96... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Rodrigo-Siqueira/drm-amd-display-Base-changes-for-isolating-FPU-operation-in-a-single-place/20210713-220840 git checkout 86e864484b1781d5a294660fe92f5ba9664d7612 # save the attached .config to linux build tree make W=1 ARCH=x86_64 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 >>): drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c: In function 'dc_assert_fp_enabled': 57 | int *pcpu, depth = 0; | ^~~~ vim +/pcpu +57 drivers/gpu/drm/amd/amdgpu/../display/amdgpu_dm/dc_fpu.c 43 44 /** 45 * dc_assert_fp_enabled - Check if FPU protection is enabled 46 * 47 * This function tells if the code is already under FPU protection or not. A 48 * function that works as an API for a set of FPU operations can use this 49 * function for checking if the caller invoked it after DC_FP_START(). For 50 * example, take a look at dcn2x.c file. 51 * 52 * Return: 53 * Return true if we already enabled FPU protection, otherwise return false. 54 */ 55 inline bool dc_assert_fp_enabled(void) 56 { 58 59 pcpu = get_cpu_ptr(&fpu_recursion_depth); 60 depth = this_cpu_read(fpu_recursion_depth); 61 put_cpu_ptr(&fpu_recursion_depth); 62 63 return depth > 1; 64 } 65 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org