Hi, I love your patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.13-rc6 next-20210617] [cannot apply to xlnx/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting patch, we suggest to use '--base' as documented in https://git-scm.com/docs/git-format-patch] url: https://github.com/0day-ci/linux/commits/trix-redhat-com/fpga-reorganize-... base: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git 94f0b2d4a1d0c52035aef425da5e022bd2cb1c71 config: arm-randconfig-r011-20210618 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 64720f57bea6a6bf033feef4a5751ab9c0c3b401) 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/e5f1603deb6348c4e1e0f5efe8dc8cde6... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review trix-redhat-com/fpga-reorganize-to-subdirs/20210616-231900 git checkout e5f1603deb6348c4e1e0f5efe8dc8cde603279ea # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=arm If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): static const struct of_device_id of_match[] = { ^ 1 warning generated. vim +/of_match +377 drivers/fpga/lattice/machxo2-spi.c 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 376 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 @377 static const struct of_device_id of_match[] = { 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 378 { .compatible = "lattice,machxo2-slave-spi", }, 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 379 {} 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 380 }; 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 381 MODULE_DEVICE_TABLE(of, of_match); 88fb3a00233073 drivers/fpga/machxo2-spi.c Paolo Pisati 2018-04-16 382 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org