tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   9d49ed9ca93b8c564033c1d6808017bc9052b5db
commit: 9a14838bcdcbbe5febec47e66227c74e67681a4f [8040/8469] mm/vmalloc: remove map_kernel_range
config: riscv-nommu_k210_defconfig (attached as .config)
compiler: riscv64-linux-gcc (GCC) 9.3.0
reproduce (this is a W=1 build):
        wget https://raw.githubusercontent.com/intel/lkp-tests/master/sbin/make.cross -O ~/bin/make.cross
        chmod +x ~/bin/make.cross
        # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=9a14838bcdcbbe5febec47e66227c74e67681a4f
        git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git
        git fetch --no-tags linux-next master
        git checkout 9a14838bcdcbbe5febec47e66227c74e67681a4f
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=riscv 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <redacted>

All errors (new ones prefixed by >>):

   riscv64-linux-ld: mm/percpu.o: in function `.L232':

quoted

percpu.c:(.text+0x8d0): undefined reference to `vmap_pages_range_noflush'

---
0-DAY CI Kernel Test Service, Intel Corporation
https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org