Hi Wythe, Thank you for the patch! Yet something to improve: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/D-Wythe/net-smc-Introduce-BPF-injection-capability-for-SMC/20230221-155712 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/1676966191-47736-2-git-send-email-alibuda%40linux.alibaba.com patch subject: [PATCH bpf-next 1/2] net/smc: Introduce BPF injection capability for SMC config: i386-randconfig-a013-20230220 (https://download.01.org/0day-ci/archive/20230221/202302211908.BgagxpRo-lkp@xxxxxxxxx/config) compiler: clang version 14.0.6 (https://github.com/llvm/llvm-project f28c006a5895fc0e329fe15fead81e37457cb1d1) 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/e2b31aece49068d7a07ca4bbd5fbdbd92f45a25e git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review D-Wythe/net-smc-Introduce-BPF-injection-capability-for-SMC/20230221-155712 git checkout e2b31aece49068d7a07ca4bbd5fbdbd92f45a25e # save the config file mkdir build_dir && cp config build_dir/.config COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 olddefconfig COMPILER_INSTALL_PATH=$HOME/0day COMPILER=clang make.cross W=1 O=build_dir ARCH=i386 SHELL=/bin/bash net/ If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Link: https://lore.kernel.org/oe-kbuild-all/202302211908.BgagxpRo-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): >> net/smc/bpf_smc_struct_ops.c:61:33: error: use of undeclared identifier 'BTF_SMC_TYPE_MAX'; did you mean 'BTF_SMC_TYPE_SOCK'? BTF_ID_LIST_GLOBAL(btf_smc_ids, BTF_SMC_TYPE_MAX) ^~~~~~~~~~~~~~~~ BTF_SMC_TYPE_SOCK include/linux/btf_ids.h:211:61: note: expanded from macro 'BTF_ID_LIST_GLOBAL' #define BTF_ID_LIST_GLOBAL(name, n) u32 __maybe_unused name[n]; ^ include/linux/btf_ids.h:275:1: note: 'BTF_SMC_TYPE_SOCK' declared here BTF_SMC_TYPE_xxx ^ include/linux/btf_ids.h:269:15: note: expanded from macro 'BTF_SMC_TYPE_xxx' BTF_SMC_TYPE(BTF_SMC_TYPE_SOCK, smc_sock) \ ^ 1 error generated. vim +61 net/smc/bpf_smc_struct_ops.c 59 60 /* define global smc ID for smc_struct_ops */ > 61 BTF_ID_LIST_GLOBAL(btf_smc_ids, BTF_SMC_TYPE_MAX) 62 #define BTF_SMC_TYPE(name, type) BTF_ID(struct, type) 63 BTF_SMC_TYPE_xxx 64 #undef BTF_SMC_TYPE 65 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests