Hi, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on next-20210217] [cannot apply to robh/for-next linus/master remoteproc/for-next rpmsg/for-next v5.11 v5.11-rc7 v5.11-rc6 v5.11] [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/peng-fan-oss-nxp-com/remoteproc-... base: cd560d8023bf73c94d755908c8d4a0994dd1ec34 config: mips-randconfig-s032-20210218 (attached as .config) compiler: mipsel-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: v0.6.3-215-g0fb77bb6-dirty # https://github.com/0day-ci/linux/commit/0ec66368df53f64194c8c97ecfb007584... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review peng-fan-oss-nxp-com/remoteproc-imx_rproc-support-iMX8MQ-M/20210218-094227 git checkout 0ec66368df53f64194c8c97ecfb007584ce0185f # 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=mips 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 >>)" command-line: note: in included file: builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQUIRE redefined builtin:0:0: sparse: this was the original definition builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_SEQ_CST redefined builtin:0:0: sparse: this was the original definition builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_ACQ_REL redefined builtin:0:0: sparse: this was the original definition builtin:1:9: sparse: sparse: preprocessor token __ATOMIC_RELEASE redefined builtin:0:0: sparse: this was the original definition drivers/remoteproc/remoteproc_coredump.c:169:53: sparse: expected void const volatile [noderef] __iomem *src drivers/remoteproc/remoteproc_coredump.c:169:53: sparse: got void *[assigned] ptr vim +169 drivers/remoteproc/remoteproc_coredump.c 150 151 static void rproc_copy_segment(struct rproc *rproc, void *dest, 152 struct rproc_dump_segment *segment, 153 size_t offset, size_t size) 154 { 155 void *ptr; 156 bool is_iomem; 157 158 if (segment->dump) { 159 segment->dump(rproc, segment, dest, offset, size); 160 } else { 161 ptr = rproc_da_to_va(rproc, segment->da + offset, size, &is_iomem); 162 if (!ptr) { 163 dev_err(&rproc->dev, 164 "invalid copy request for segment %pad with offset %zu and size %zu)\n", 165 &segment->da, offset, size); 166 memset(dest, 0xff, size); 167 } else { 168 if (is_iomem) 170 else 171 memcpy(dest, ptr, size); 172 } 173 } 174 } 175 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org