tree: https://github.com/Freescale/linux-fslc 5.4-2.3.x-imx head: a8a2b9ee4bec0b29d031324160b7f11af42a563a commit: ad144fec7a113f7abafcf29e24aa841782d40935 [8790/16543] MLK-23754-19 remoteproc: add rproc_memcpy config: sparc-randconfig-s031-20210114 (attached as .config) compiler: sparc-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: v0.6.3-208-g46a52ca4-dirty # https://github.com/Freescale/linux-fslc/commit/ad144fec7a113f7abafcf29e24... git remote add freescale-fslc https://github.com/Freescale/linux-fslc git fetch --no-tags freescale-fslc 5.4-2.3.x-imx git checkout ad144fec7a113f7abafcf29e24aa841782d40935 # 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=sparc 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 >>)" vim +/memcpy +85 drivers/remoteproc/remoteproc_core.c 73 74 /* 75 * rproc_memcpy() - memcpy verison for remoteproc usage 76 * @flags: 77 * - 0 means to DA 78 * - 1 means from DA 79 * 80 */ 81 void *rproc_memcpy(struct rproc *rproc, void *dest, 82 const void *src, size_t count, int flags) 83 { 84 if (rproc->ops->memcpy) 86 87 return memcpy(dest, src, count); 88 } 89 EXPORT_SYMBOL(rproc_memcpy); 90 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org