Hi Nehal, FYI, the error/warning still remains. tree: https://gitlab.freedesktop.org/agd5f/linux.git amd-staging-drm-next head: b54280b32ebb9381e045e645eabd99dbbe607ec2 commit: 37b635b47124cbdf32981150b2a950cb0153c756 [1776/2357] Add support for AMD SPI controller-1 (v2) config: riscv-randconfig-r011-20210415 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 6a18cc23efad410db48a3ccfc233d215de7d4cb9) 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 riscv cross compiling tool for clang build # apt-get install binutils-riscv64-linux-gnu git remote add agd5f https://gitlab.freedesktop.org/agd5f/linux.git git fetch --no-tags agd5f amd-staging-drm-next git checkout 37b635b47124cbdf32981150b2a950cb0153c756 # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 ARCH=riscv 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 acpi_device_id spi_acpi_match[] = { ^ 1 warning generated. vim +/spi_acpi_match +353 drivers/spi/spi-amd.c bbb336f39efcb1 Sanjay R Mehta 2020-04-25 352 bbb336f39efcb1 Sanjay R Mehta 2020-04-25 @353 static const struct acpi_device_id spi_acpi_match[] = { bbb336f39efcb1 Sanjay R Mehta 2020-04-25 354 { "AMDI0061", 0 }, 37b635b47124cb Nehal Bakulchandra Shah 2021-01-26 355 { "AMDI0062", 0 }, bbb336f39efcb1 Sanjay R Mehta 2020-04-25 356 {}, bbb336f39efcb1 Sanjay R Mehta 2020-04-25 357 }; bbb336f39efcb1 Sanjay R Mehta 2020-04-25 358 MODULE_DEVICE_TABLE(acpi, spi_acpi_match); bbb336f39efcb1 Sanjay R Mehta 2020-04-25 359 :::::: The code at line 353 was first introduced by commit :::::: bbb336f39efcb1b5498f65f59f9af5773ad6dc2b spi: spi-amd: Add AMD SPI controller driver support :::::: TO: Sanjay R Mehta <sanju.mehta(a)amd.com&gt; :::::: CC: Mark Brown <broonie(a)kernel.org&gt; --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org