Hi Mauro, First bad commit (maybe != root cause): tree: https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git master head: 8c26c87b05323a7ccdc632820b85253e0bf47fd9 commit: df823a8208c434eee6e4e9aa016c956d0968e2e2 media: cec: rename CEC platform drivers config options date: 3 months ago config: x86_64-randconfig-a012-20200723 (attached as .config) compiler: clang version 12.0.0 (https://github.com/llvm/llvm-project 3d9967039d4191b77f939ddc6c6ff4275df620c2) 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 df823a8208c434eee6e4e9aa016c956d0968e2e2 # 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/media/cec/platform/meson/ao-cec.c:713:34: warning: unused variable 'meson_ao_cec_of_match' [-Wunused-const-variable] static const struct of_device_id meson_ao_cec_of_match[] = { ^ 1 warning generated. vim +/meson_ao_cec_of_match +713 drivers/media/cec/platform/meson/ao-cec.c 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 712 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 @713 static const struct of_device_id meson_ao_cec_of_match[] = { 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 714 { .compatible = "amlogic,meson-gx-ao-cec", }, 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 715 { /* sentinel */ } 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 716 }; 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 717 MODULE_DEVICE_TABLE(of, meson_ao_cec_of_match); 7ec2c0f72cb119 drivers/media/platform/meson/ao-cec.c Neil Armstrong 2017-07-27 718 :::::: The code at line 713 was first introduced by commit :::::: 7ec2c0f72cb1199c97d92b97b4bfc9978a0ea791 media: platform: Add Amlogic Meson AO CEC Controller driver :::::: TO: Neil Armstrong <narmstrong@xxxxxxxxxxxx> :::::: CC: Mauro Carvalho Chehab <mchehab@xxxxxxxxxxxxxxxx> --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
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