Hi Vitor,

Thank you for the patch! Yet something to improve:

[auto build test ERROR on d43c7fb05765152d4d4a39a8ef957c4ea14d8847]

url:    https://github.com/0day-ci/linux/commits/Vitor-Massaru-Iha/lib-kunit-Convert-test_sort-to-KUnit-test/20200730-031404
base:    d43c7fb05765152d4d4a39a8ef957c4ea14d8847
config: microblaze-randconfig-s031-20200803 (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
        # apt-get install sparse
        # sparse version: v0.6.2-117-g8c7aee71-dirty
        # save the attached .config to linux build tree
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-9.3.0 make.cross C=1 CF='-fdiagnostic-prefix -D__CHECK_ENDIAN__' ARCH=microblaze 

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 >>):

   microblaze-linux-ld: lib/sort_kunit.o: in function `kunit_test_suites_init':
   lib/sort_kunit.c:47: undefined reference to `__kunit_test_suites_init'
   microblaze-linux-ld: lib/sort_kunit.o: in function `sort_test':
   lib/sort_kunit.c:19: undefined reference to `kunit_unary_assert_format'
>> microblaze-linux-ld: lib/sort_kunit.c:19: undefined reference to `kunit_do_assertion'
>> microblaze-linux-ld: lib/sort_kunit.c:30: undefined reference to `kunit_fail_assert_format'
   microblaze-linux-ld: lib/sort_kunit.c:30: undefined reference to `kunit_do_assertion'
   microblaze-linux-ld: lib/sort_kunit.o: in function `kunit_test_suites_exit':
   lib/sort_kunit.c:47: undefined reference to `__kunit_test_suites_exit'

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