Hi Xu, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Xu-Jia/bpf-fix-bpf-compile-error-caused-by-CONFIG_CGROUP_BPF/20220719-165058 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master config: i386-randconfig-a005-20220718 (https://download.01.org/0day-ci/archive/20220720/202207201518.zmoBBoB6-lkp@xxxxxxxxx/config) compiler: clang version 15.0.0 (https://github.com/llvm/llvm-project dd5635541cd7bbd62cd59b6694dfb759b6e9a0d8) 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 # https://github.com/intel-lab-lkp/linux/commit/cfd7055cd0be7cfd0de5c24a84c29afe0611cb6c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Xu-Jia/bpf-fix-bpf-compile-error-caused-by-CONFIG_CGROUP_BPF/20220719-165058 git checkout cfd7055cd0be7cfd0de5c24a84c29afe0611cb6c # 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=i386 SHELL=/bin/bash drivers/ufs/core/ 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/trampoline.c:526:34: warning: unused variable 'bpf_shim_tramp_link_lops' [-Wunused-const-variable] static const struct bpf_link_ops bpf_shim_tramp_link_lops = { ^ 1 warning generated. vim +/bpf_shim_tramp_link_lops +526 kernel/bpf/trampoline.c 69fd337a975c7e Stanislav Fomichev 2022-06-28 525 69fd337a975c7e Stanislav Fomichev 2022-06-28 @526 static const struct bpf_link_ops bpf_shim_tramp_link_lops = { 69fd337a975c7e Stanislav Fomichev 2022-06-28 527 .release = bpf_shim_tramp_link_release, 69fd337a975c7e Stanislav Fomichev 2022-06-28 528 .dealloc = bpf_shim_tramp_link_dealloc, 69fd337a975c7e Stanislav Fomichev 2022-06-28 529 }; 69fd337a975c7e Stanislav Fomichev 2022-06-28 530 -- 0-DAY CI Kernel Test Service https://01.org/lkp
