tree:   https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git master
head:   3357b61177a7f34267256098b29a7f4992af40f3
commit: a583ed310bb6b514e717c11a30b5a7bc3a65d1b1 [7/26] hwrng: cctrng - introduce Arm CryptoCell driver
config: um-kunit_defconfig (attached as .config)
compiler: gcc-7 (Ubuntu 7.5.0-6ubuntu2) 7.5.0
reproduce:
        git checkout a583ed310bb6b514e717c11a30b5a7bc3a65d1b1
        # save the attached .config to linux build tree
        make ARCH=um 

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 >>):

   /usr/bin/ld: drivers/char/hw_random/cctrng.o: in function `cctrng_probe':
>> cctrng.c:(.text+0x36f): undefined reference to `devm_ioremap_resource'
   collect2: error: ld returned 1 exit status

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