Hi Jeremy,

I love your patch! Yet something to improve:

[auto build test ERROR on net-next/master]

url:    https://github.com/0day-ci/linux/commits/Jeremy-Kerr/MCTP-kunit-tests/20211001-162019
base:   https://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next.git b05173028cc52384be42dcf81abdb4133caccfa5
config: sh-allmodconfig (attached as .config)
compiler: sh4-linux-gcc (GCC) 11.2.0
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://github.com/0day-ci/linux/commit/4cc0785d056598892d81256078a62a8c52458d6d
        git remote add linux-review https://github.com/0day-ci/linux
        git fetch --no-tags linux-review Jeremy-Kerr/MCTP-kunit-tests/20211001-162019
        git checkout 4cc0785d056598892d81256078a62a8c52458d6d
        # save the attached .config to linux build tree
        mkdir build_dir
        COMPILER_INSTALL_PATH=$HOME/0day COMPILER=gcc-11.2.0 make.cross O=build_dir ARCH=sh SHELL=/bin/bash

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 >>):

   sh4-linux-ld: net/mctp/route.o: in function `kunit_test_suites_exit':
>> route.c:(.exit.text+0x54): multiple definition of `cleanup_module'; net/mctp/af_mctp.o:af_mctp.c:(.exit.text+0x0): first defined here
   sh4-linux-ld: net/mctp/route.o: in function `kunit_test_suites_init':
>> route.c:(.init.text+0xa0): multiple definition of `init_module'; net/mctp/af_mctp.o:af_mctp.c:(.init.text+0x0): first defined here

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