[linux-next:master 2444/5396] undefined reference to `radix__early_init_mmu'

[linux-next:master 2444/5396] undefined reference to `radix__early_init_mmu'

[kernel test robot]

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tree:   https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master
head:   f6b46ef27317b3441138b902689bd89e4f82c6f4
commit: fe3dc333d2ed50c9764d281869d87bae0d795ce5 [2444/5396] powerpc/mmu: Don't duplicate radix_enabled()
config: powerpc64-randconfig-p002-20210526 (attached as .config)
compiler: powerpc64le-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=fe3dc333d2ed50c9764d281869d87bae0d795ce5
        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 fe3dc333d2ed50c9764d281869d87bae0d795ce5
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=powerpc64 

If you fix the issue, kindly add following tag as appropriate
Reported-by: kernel test robot <lkp@intel.com>

All errors (new ones prefixed by >>):

   powerpc64le-linux-ld: arch/powerpc/kernel/setup_64.o: in function `early_setup':
>> (.init.text+0x1878): undefined reference to `radix__early_init_mmu'

Kconfig warnings: (for reference only)
   WARNING: unmet direct dependencies detected for HOTPLUG_CPU
   Depends on SMP && (PPC_PSERIES || PPC_PMAC || PPC_POWERNV || FSL_SOC_BOOKE
   Selected by
   - PM_SLEEP_SMP && SMP && (ARCH_SUSPEND_POSSIBLE || ARCH_HIBERNATION_POSSIBLE && PM_SLEEP

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

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