ERROR: modpost: "max_low_pfn" undefined!

[kernel test robot]

tree:   https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master
head:   18445bf405cb331117bc98427b1ba6f12418ad17
commit: 521fd61c84a19b31dfbaa8dde3d2577e4e115d12 security/keys: rewrite big_key crypto to use library interface
date:   3 months ago
config: ia64-randconfig-r034-20200820 (attached as .config)
compiler: ia64-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
        git checkout 521fd61c84a19b31dfbaa8dde3d2577e4e115d12
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross ARCH=ia64 

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

All errors (new ones prefixed by >>, old ones prefixed by <<):

>> ERROR: modpost: "max_low_pfn" [crypto/gcm.ko] undefined!
>> ERROR: modpost: "min_low_pfn" [crypto/gcm.ko] undefined!

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

Attachment: .config.gz
Description: application/gzip