Hi Flora, FYI, the error/warning still remains. tree: git://people.freedesktop.org/~agd5f/linux.git amd-19.50 head: 1f30c089d757f6d88703676d913f06d8a5ef4353 commit: 4d49aa8a40ceecfd8a6b2d4e1b86396fbeedbb01 [1794/2704] drm/amdkcl/autoconf: generate config.h for in-tree build config: sparc64-allyesconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 7.5.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 4d49aa8a40ceecfd8a6b2d4e1b86396fbeedbb01 # save the attached .config to linux build tree GCC_VERSION=7.5.0 make.cross ARCH=sparc64 If you fix the issue, kindly add following tag Reported-by: kbuild test robot All errors (new ones prefixed by >>): >> configure: error: in `drivers/gpu/drm/scheduler/dkms': >> configure: error: C compiler cannot create executables See `config.log' for more details -- >> configure: error: in `drivers/gpu/drm/ttm/dkms': >> configure: error: C compiler cannot create executables See `config.log' for more details --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org Intel Corporation