[kbuild-all] Re: drm/amd/display: Simplify hdcp validate_bksv

Hi Joe, I love your patch! Yet something to improve: [auto build test ERROR on drm-intel/for-linux-next] [also build test ERROR on drm-exynos/exynos-drm-next linus/master next-20210709] [cannot apply to kees/for-next/pstore tegra-drm/drm/tegra/for-next drm/drm-next v5.13] [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/Joe-Perches/drm-amd-display-Simp... base: git://anongit.freedesktop.org/drm-intel for-linux-next config: i386-randconfig-a003-20210712 (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/66fae2c1becdcb71c95f2c6a6413de4df...         git remote add linux-review https://github.com/0day-ci/linux         git fetch --no-tags linux-review Joe-Perches/drm-amd-display-Simplify-hdcp-validate_bksv/20210712-034708         git checkout 66fae2c1becdcb71c95f2c6a6413de4dfe1deb51         # save the attached .config to linux build tree         make W=1 ARCH=i386 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 >>, old ones prefixed by <<): > > ERROR: modpost: "__popcountdi2" [drivers/gpu/drm/amd/amdgpu/amdgpu.ko] undefined!