tree: https://chromium.googlesource.com/chromiumos/third_party/kernel chromeos-5.10 head: 86e254a7bd3d3fcf5abbc987c8e0bb1f59b25b40 commit: 8cafd5ac5f113cb45e075c67cdf1217569d93a36 [4/7] FROMLIST: soc: mediatek: SVS: introduce MTK SVS engine config: x86_64-randconfig-r003-20210519 (attached as .config) compiler: clang version 13.0.0 (https://github.com/llvm/llvm-project 8e93d10633d751a3e9169bf9fa68326925ffa097) 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 remote add chrome-os https://chromium.googlesource.com/chromiumos/third_party/kernel git fetch --no-tags chrome-os chromeos-5.10 git checkout 8cafd5ac5f113cb45e075c67cdf1217569d93a36 # 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 <lkp(a)intel.com&gt; All warnings (new ones prefixed by >>): drivers/soc/mediatek/mtk-svs.c:1345:12: warning: unused function 'svs_suspend' [-Wunused-function] static int svs_suspend(struct device *dev) ^ drivers/soc/mediatek/mtk-svs.c:1384:12: warning: unused function 'svs_resume' [-Wunused-function] static int svs_resume(struct device *dev) ^ static const struct of_device_id mtk_svs_of_match[] = { ^ 3 warnings generated. vim +/mtk_svs_of_match +1618 drivers/soc/mediatek/mtk-svs.c 1617 1619 { 1620 .compatible = "mediatek,mt8183-svs", 1621 .data = &svs_get_svs_mt8183_platform_data, 1622 }, { 1623 /* Sentinel */ 1624 }, 1625 }; 1626 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@lists.01.org