Hi bo, FYI, the error/warning still remains. tree: https://github.com/intel/linux-intel-lts.git 4.19/android_r head: 968adf904a287574c10a384c2e3b1e88994ad843 commit: 2dc602187679f10f3a427de9a96a8940f1ce2257 [18683/21556] ion: fix the tons of warning from PAT config: sparc-allyesconfig (attached as .config) compiler: sparc64-linux-gcc (GCC) 9.3.0 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://github.com/intel/linux-intel-lts/commit/2dc602187679f10f3a427de9a... git remote add intel-linux-intel-lts https://github.com/intel/linux-intel-lts.git git fetch --no-tags intel-linux-intel-lts 4.19/android_r git checkout 2dc602187679f10f3a427de9a96a8940f1ce2257 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=sparc 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 >>): 17 | #include <asm/set_memory.h> | ^~~~~~~~~~~~~~~~~~ compilation terminated. vim +17 drivers/staging/android/ion/ion_system_heap.c 18 #include "ion.h" 19 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org