tree: https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git accel head: ab741984de51f780334f1c4ce2ee98ef81a8a28f commit: ab741984de51f780334f1c4ce2ee98ef81a8a28f [9/9] Add CONFIG_ACCEL config: arm-randconfig-r004-20221019 compiler: clang version 16.0.0 (https://github.com/llvm/llvm-project 791a7ae1ba3efd6bca96338e10ffde557ba83920) 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 arm cross compiling tool for clang build # apt-get install binutils-arm-linux-gnueabi # https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git/commit/?id=ab741984de51f780334f1c4ce2ee98ef81a8a28f git remote add ogabbay https://git.kernel.org/pub/scm/linux/kernel/git/ogabbay/linux.git git fetch --no-tags ogabbay accel git checkout ab741984de51f780334f1c4ce2ee98ef81a8a28f # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=arm SHELL=/bin/bash drivers/gpu/drm/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot All warnings (new ones prefixed by >>): >> drivers/gpu/drm/drm_drv.c:1122:37: warning: unused variable 'accel_stub_fops' [-Wunused-const-variable] static const struct file_operations accel_stub_fops = { ^ 1 warning generated. vim +/accel_stub_fops +1122 drivers/gpu/drm/drm_drv.c 1b7199fe984073 drivers/gpu/drm/drm_stub.c David Herrmann 2014-07-23 1121 39e251c7f78ef9 drivers/gpu/drm/drm_drv.c Oded Gabbay 2022-10-21 @1122 static const struct file_operations accel_stub_fops = { 39e251c7f78ef9 drivers/gpu/drm/drm_drv.c Oded Gabbay 2022-10-21 1123 .owner = THIS_MODULE, 39e251c7f78ef9 drivers/gpu/drm/drm_drv.c Oded Gabbay 2022-10-21 1124 .open = accel_stub_open, 39e251c7f78ef9 drivers/gpu/drm/drm_drv.c Oded Gabbay 2022-10-21 1125 .llseek = noop_llseek, 39e251c7f78ef9 drivers/gpu/drm/drm_drv.c Oded Gabbay 2022-10-21 1126 }; 39e251c7f78ef9 drivers/gpu/drm/drm_drv.c Oded Gabbay 2022-10-21 1127 :::::: The code at line 1122 was first introduced by commit :::::: 39e251c7f78ef9d4a4d3d92db1896a68dc3b3e9e handle drm_open :::::: TO: Oded Gabbay :::::: CC: Oded Gabbay -- 0-DAY CI Kernel Test Service https://01.org/lkp