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: arm-randconfig-r006-20211001 (attached as .config) compiler: clang version 14.0.0 (https://github.com/llvm/llvm-project 962e503cc8bc411f7523cc393acae8aae425b1c4) 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 # install arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://github.com/0day-ci/linux/commit/85da939dab5470b1f2a921867d780af5a1fd8aab 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 85da939dab5470b1f2a921867d780af5a1fd8aab # save the attached .config to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All errors (new ones prefixed by >>): >> ld.lld: error: undefined symbol: mctp_test_create_dev >>> referenced by route.c >>> mctp/route.o:(mctp_test_rx_input) in archive net/built-in.a -- >> ld.lld: error: undefined symbol: mctp_test_destroy_dev >>> referenced by route.c >>> mctp/route.o:(mctp_test_rx_input) in archive net/built-in.a --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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