tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 42f82040ee66db13525dc6f14b8559890b2f4c1c commit: ad1df95419cc46b4a832cbb537716e3da9a98881 mips/vdso: Support mremap() for vDSO date: 6 months ago config: mips-randconfig-s031-20200710 (attached as .config) compiler: mips64el-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: v0.6.2-37-gc9676a3b-dirty git checkout ad1df95419cc46b4a832cbb537716e3da9a98881 # 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 >>) arch/mips/vdso/vdso-n32-image.c:13:35: sparse: sparse: incorrect type in assignment (different address spaces) @@ expected void *[usertype] vdso @@ got void [noderef] <asn:1> * @@ arch/mips/vdso/vdso-n32-image.c:13:35: sparse: got void [noderef] <asn:1> * --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org