Hi Neil, FYI, the error/warning still remains.
tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 06a4ec1d9dc652e17ee3ac2ceb6c7cf6c2b75cdd commit: 6c27219e34911601955b72c754adfc11c527ba7b mfd: Add support for the Khadas System control Microcontroller date: 9 weeks ago config: x86_64-randconfig-r006-20200818 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 790878f291fa5dc58a1c560cb6cc76fd1bfd1c5a) 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 x86_64 cross compiling tool for clang build # apt-get install binutils-x86-64-linux-gnu git checkout 6c27219e34911601955b72c754adfc11c527ba7b # save the attached .config to linux build tree COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross ARCH=x86_64 If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <l...@intel.com> All warnings (new ones prefixed by >>): >> drivers/mfd/khadas-mcu.c:125:34: warning: unused variable >> 'khadas_mcu_of_match' [-Wunused-const-variable] static const struct of_device_id khadas_mcu_of_match[] = { ^ 1 warning generated. # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=6c27219e34911601955b72c754adfc11c527ba7b git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout 6c27219e34911601955b72c754adfc11c527ba7b vim +/khadas_mcu_of_match +125 drivers/mfd/khadas-mcu.c 124 > 125 static const struct of_device_id khadas_mcu_of_match[] = { 126 { .compatible = "khadas,mcu", }, 127 {}, 128 }; 129 MODULE_DEVICE_TABLE(of, khadas_mcu_of_match); 130 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-...@lists.01.org
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