Hi "André, I love your patch! Perhaps something to improve: [auto build test WARNING on broonie-spi/for-next] [also build test WARNING on v5.17-rc3 next-20220211] [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/Andr-Almeida/spi-amd-Add-support... base: https://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi.git for-next config: arm64-randconfig-r015-20220211 (https://download.01.org/0day-ci/archive/20220212/202202120307.tqHogZDg-lk...) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project f6685f774697c85d6a352dcea013f46a99f9fe31) 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 arm64 cross compiling tool for clang build # apt-get install binutils-aarch64-linux-gnu # https://github.com/0day-ci/linux/commit/f9ba9fa1166540cf4dbf3ffbddb96b556... git remote add linux-review https://github.com/0day-ci/linux git fetch --no-tags linux-review Andr-Almeida/spi-amd-Add-support-for-new-controller-version/20220211-223438 git checkout f9ba9fa1166540cf4dbf3ffbddb96b55699479b5 # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm64 SHELL=/bin/bash drivers/spi/ 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 >>): amd_spi->version = (enum amd_spi_versions) device_get_match_data(dev); ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ drivers/spi/spi-amd.c:333:23: error: use of undeclared identifier 'spi_acpi_match' .acpi_match_table = spi_acpi_match, ^ 1 warning and 1 error generated. vim +296 drivers/spi/spi-amd.c 272 273 static int amd_spi_probe(struct platform_device *pdev) 274 { 275 struct device *dev = &pdev->dev; 276 struct spi_master *master; 277 struct amd_spi *amd_spi; 278 int err = 0; 279 280 /* Allocate storage for spi_master and driver private data */ 281 master = spi_alloc_master(dev, sizeof(struct amd_spi)); 282 if (!master) { 283 dev_err(dev, "Error allocating SPI master\n"); 284 return -ENOMEM; 285 } 286 287 amd_spi = spi_master_get_devdata(master); 288 amd_spi->io_remap_addr = devm_platform_ioremap_resource(pdev, 0); 289 if (IS_ERR(amd_spi->io_remap_addr)) { 290 err = PTR_ERR(amd_spi->io_remap_addr); 291 dev_err(dev, "error %d ioremap of SPI registers failed\n", err); 292 goto err_free_master; 293 } 294 dev_dbg(dev, "io_remap_address: %p\n", amd_spi->io_remap_addr); 295 297 298 /* Initialize the spi_master fields */ 299 master->bus_num = 0; 300 master->num_chipselect = 4; 301 master->mode_bits = 0; 302 master->flags = SPI_MASTER_HALF_DUPLEX; 303 master->setup = amd_spi_master_setup; 304 master->transfer_one_message = amd_spi_master_transfer; 305 306 /* Register the controller with SPI framework */ 307 err = devm_spi_register_master(dev, master); 308 if (err) { 309 dev_err(dev, "error %d registering SPI controller\n", err); 310 goto err_free_master; 311 } 312 313 return 0; 314 315 err_free_master: 316 spi_master_put(master); 317 318 return err; 319 } 320 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org