Hi Alexandre, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 3cea11cd5e3b00d91caf0b4730194039b45c5891 commit: cbd2dca74926c0e4610c40923cc786b732c9e8ef remoteproc: scp: add COMPILE_TEST dependency date: 5 weeks ago config: x86_64-randconfig-a005-20201102 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 235dfcf70abca65dba5d80f1a42d1485bab8980c) 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 # https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=cbd2dca74926c0e4610c40923cc786b732c9e8ef git remote add linus https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git git fetch --no-tags linus master git checkout cbd2dca74926c0e4610c40923cc786b732c9e8ef # 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@xxxxxxxxx> All warnings (new ones prefixed by >>): >> drivers/remoteproc/mtk_scp.c:645:34: warning: unused variable 'mtk_scp_of_match' [-Wunused-const-variable] static const struct of_device_id mtk_scp_of_match[] = { ^ 1 warning generated. vim +/mtk_scp_of_match +645 drivers/remoteproc/mtk_scp.c 63c13d61eafe46 Erin Lo 2019-11-12 644 63c13d61eafe46 Erin Lo 2019-11-12 @645 static const struct of_device_id mtk_scp_of_match[] = { 63c13d61eafe46 Erin Lo 2019-11-12 646 { .compatible = "mediatek,mt8183-scp"}, 63c13d61eafe46 Erin Lo 2019-11-12 647 {}, 63c13d61eafe46 Erin Lo 2019-11-12 648 }; 63c13d61eafe46 Erin Lo 2019-11-12 649 MODULE_DEVICE_TABLE(of, mtk_scp_of_match); 63c13d61eafe46 Erin Lo 2019-11-12 650 :::::: The code at line 645 was first introduced by commit :::::: 63c13d61eafe4606f1c16c54da40c4eee78e9edf remoteproc/mediatek: add SCP support for mt8183 :::::: TO: Erin Lo <erin.lo@xxxxxxxxxxxx> :::::: CC: Bjorn Andersson <bjorn.andersson@xxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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