[kbuild-all] Re: [linuxppc:next-test 29/97] arch/powerpc/math-emu/math.c:237:13: sparse: sparse: incorrect type in initializer (different address spaces)

tree: https://github.com/linuxppc/linux next-test head: 3411d1b25358f6007f411b1fa629ac040b8f59ad commit: 60e66d033c83b3677fd54b3bc3a9643b56b64f04 [29/97] powerpc/uaccess: Refactor get/put_user() and __get/put_user() config: powerpc64-randconfig-s032-20210314 (attached as .config) compiler: powerpc-linux-gcc (GCC) 9.3.0 reproduce: wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross # apt-get install sparse # sparse version: v0.6.3-262-g5e674421-dirty # https://github.com/linuxppc/linux/commit/60e66d033c83b3677fd54b3bc3a9643b... git remote add linuxppc https://github.com/linuxppc/linux git fetch --no-tags linuxppc next-test git checkout 60e66d033c83b3677fd54b3bc3a9643b56b64f04 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=powerpc64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; "sparse warnings: (new ones prefixed by >>)" arch/powerpc/math-emu/math.c:228:21: sparse: sparse: Using plain integer as NULL pointer arch/powerpc/math-emu/math.c:228:31: sparse: sparse: Using plain integer as NULL pointer arch/powerpc/math-emu/math.c:228:41: sparse: sparse: Using plain integer as NULL pointer arch/powerpc/math-emu/math.c:228:51: sparse: sparse: Using plain integer as NULL pointer >> arch/powerpc/math-emu/math.c:237:13: sparse: sparse: incorrect type in initializer (different address spaces) @@ expected unsigned int [noderef] __user *_gu_addr @@ got unsigned int [usertype] * @@ arch/powerpc/math-emu/math.c:237:13: sparse: expected unsigned int [noderef] __user *_gu_addr arch/powerpc/math-emu/math.c:237:13: sparse: got unsigned int [usertype] *