tree: https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git sysctl-testing head: 7cde53da38a3ea00d75ef6a6ab06fa85b80bcf87 commit: 87125d15aa3c4046e902758a39062f213b3664ad [12/18] mm: move page-writeback sysctls to their own file config: s390-randconfig-r034-20220406 (https://download.01.org/0day-ci/archive/20220408/202204081510.D41wQr6m-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6b306233f78876a1d197ed6e1f05785505de7c63) 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 s390 cross compiling tool for clang build # apt-get install binutils-s390x-linux-gnu # https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git/commit/?id=87125d15aa3c4046e902758a39062f213b3664ad git remote add mcgrof https://git.kernel.org/pub/scm/linux/kernel/git/mcgrof/linux.git git fetch --no-tags mcgrof sysctl-testing git checkout 87125d15aa3c4046e902758a39062f213b3664ad # save the config file to linux build tree mkdir build_dir COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=s390 SHELL=/bin/bash If you fix the issue, kindly add following tag as appropriate Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> mm/page-writeback.c:93:28: warning: unused variable 'dirty_bytes_min' [-Wunused-const-variable] static const unsigned long dirty_bytes_min = 2 * PAGE_SIZE; ^ 1 warning generated. vim +/dirty_bytes_min +93 mm/page-writeback.c 91 92 /* this is needed for the proc_doulongvec_minmax of vm_dirty_bytes */ > 93 static const unsigned long dirty_bytes_min = 2 * PAGE_SIZE; 94 -- 0-DAY CI Kernel Test Service https://01.org/lkp
