tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 91265a6da44d13296bdb5b3fbafa19d06be462f2 commit: 829ec7491c401e4a3068955a438578d2c2ae8acc [9446/10468] s390/test_unwind: add ftrace test config: s390-randconfig-r015-20220303 (https://download.01.org/0day-ci/archive/20220303/202203032324.ysoZaPqS-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project d271fc04d5b97b12e6b797c6067d3c96a8d7470e) 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/next/linux-next.git/commit/?id=829ec7491c401e4a3068955a438578d2c2ae8acc git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 829ec7491c401e4a3068955a438578d2c2ae8acc # 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 >>): >> arch/s390/lib/test_unwind.c:172:21: warning: variable 'fops' set but not used [-Wunused-but-set-variable] struct ftrace_ops *fops; ^ 1 warning generated. vim +/fops +172 arch/s390/lib/test_unwind.c 169 170 static int test_unwind_ftrace(struct unwindme *u) 171 { > 172 struct ftrace_ops *fops; 173 int ret; 174 --- 0-DAY CI Kernel Test Service, Intel Corporation https://lists.01.org/hyperkitty/list/kbuild-all@xxxxxxxxxxxx
