tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: f2528c29385819a84480cacef4886b049761e2c5 commit: 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e [5835/8914] bpf: per-cgroup lsm flavor config: arm-buildonly-randconfig-r003-20220710 (https://download.01.org/0day-ci/archive/20220710/202207102321.jwphabAL-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project 6ce63e267aab79ca87bf63453d34dd3909ab978d) 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/next/linux-next.git/commit/?id=69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e 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 69fd337a975c7e690dfe49d9cb4fe5ba1e6db44e # 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 kernel/bpf/ If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> All warnings (new ones prefixed by >>): >> kernel/bpf/bpf_lsm.c:51:26: warning: variable 'args' set but not used [-Wunused-but-set-variable] const struct btf_param *args; ^ 1 warning generated. vim +/args +51 kernel/bpf/bpf_lsm.c 47 48 void bpf_lsm_find_cgroup_shim(const struct bpf_prog *prog, 49 bpf_func_t *bpf_func) 50 { > 51 const struct btf_param *args; 52 53 if (btf_type_vlen(prog->aux->attach_func_proto) < 1 || 54 btf_id_set_contains(&bpf_lsm_current_hooks, 55 prog->aux->attach_btf_id)) { 56 *bpf_func = __cgroup_bpf_run_lsm_current; 57 return; 58 } 59 60 args = btf_params(prog->aux->attach_func_proto); 61 -- 0-DAY CI Kernel Test Service https://01.org/lkp
