[kbuild-all] [tobetter-linux:odroid-5.9.y 53/72] ERROR: modpost: "phys_mem_access_prot" undefined!

tree: https://github.com/tobetter/linux odroid-5.9.y head: a17882c45f6b82a3646f55b5b179fdf7f332ab6a commit: be904257f8a9bd689b360fa98d3ffc85bdbeb560 [53/72] ODROID-XU4: char: exynos: add /dev/gpiomem device for rootless user GPIO access config: i386-randconfig-a003-20200909 (attached as .config) compiler: gcc-9 (Debian 9.3.0-15) 9.3.0 reproduce (this is a W=1 build): git checkout be904257f8a9bd689b360fa98d3ffc85bdbeb560 # save the attached .config to linux build tree make W=1 ARCH=i386 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 >>, old ones prefixed by <<): --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org