[alibaba-cloud:linux-next 11022/11102] undefined reference to `mlock_fixup'

[alibaba-cloud:linux-next 11022/11102] undefined reference to `mlock_fixup'

[kbuild test robot]

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tree:   https://github.com/alibaba/cloud-kernel.git linux-next
head:   34e80779976780a7de3a79606ed73f634b1d2efc
commit: 7d6cb94f148e9e9cce24d3ce5ccb65b49974b547 [11022/11102] alinux: mm: Pin code section of process in memory
config: microblaze-nommu_defconfig (attached as .config)
compiler: microblaze-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
        git checkout 7d6cb94f148e9e9cce24d3ce5ccb65b49974b547
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day GCC_VERSION=9.3.0 make.cross ARCH=microblaze 

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

All errors (new ones prefixed by >>):

   microblaze-linux-ld: mm/unevictable.o: in function `proc_write_del_pid':
>> (.text+0x434): undefined reference to `mlock_fixup'
   microblaze-linux-ld: mm/unevictable.o: in function `execute_vm_lock':
   (.text+0x724): undefined reference to `mlock_fixup'

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

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