Hi Andrii, kernel test robot noticed the following build errors: [auto build test ERROR on bpf-next/master] url: https://github.com/intel-lab-lkp/linux/commits/Andrii-Nakryiko/bpf-introduce-BPF-token-object/20230602-230448 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20230602150011.1657856-16-andrii%40kernel.org patch subject: [PATCH RESEND bpf-next 15/18] bpf: take into account BPF token when fetching helper protos config: um-x86_64_defconfig (https://download.01.org/0day-ci/archive/20230603/202306030252.UOXkWZTK-lkp@xxxxxxxxx/config) compiler: gcc-12 (Debian 12.2.0-14) 12.2.0 reproduce (this is a W=1 build): # https://github.com/intel-lab-lkp/linux/commit/3d830ca845b075ab4132487aaaa69b70a467863c git remote add linux-review https://github.com/intel-lab-lkp/linux git fetch --no-tags linux-review Andrii-Nakryiko/bpf-introduce-BPF-token-object/20230602-230448 git checkout 3d830ca845b075ab4132487aaaa69b70a467863c # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=um SUBARCH=x86_64 olddefconfig make W=1 O=build_dir ARCH=um SUBARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202306030252.UOXkWZTK-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): In file included from include/linux/bpf_verifier.h:7, from net/core/filter.c:21: include/linux/bpf.h: In function 'bpf_token_new_fd': include/linux/bpf.h:2475:16: warning: returning 'int' from a function with return type 'struct bpf_token *' makes pointer from integer without a cast [-Wint-conversion] 2475 | return -EOPNOTSUPP; | ^ net/core/filter.c: In function 'bpf_sk_base_func_proto': >> net/core/filter.c:11653:14: error: implicit declaration of function 'bpf_token_capable'; did you mean 'bpf_token_put'? [-Werror=implicit-function-declaration] 11653 | if (!bpf_token_capable(prog->aux->token, CAP_PERFMON)) | ^~~~~~~~~~~~~~~~~ | bpf_token_put cc1: some warnings being treated as errors vim +11653 net/core/filter.c 11619 11620 static const struct bpf_func_proto * 11621 bpf_sk_base_func_proto(enum bpf_func_id func_id, const struct bpf_prog *prog) 11622 { 11623 const struct bpf_func_proto *func; 11624 11625 switch (func_id) { 11626 case BPF_FUNC_skc_to_tcp6_sock: 11627 func = &bpf_skc_to_tcp6_sock_proto; 11628 break; 11629 case BPF_FUNC_skc_to_tcp_sock: 11630 func = &bpf_skc_to_tcp_sock_proto; 11631 break; 11632 case BPF_FUNC_skc_to_tcp_timewait_sock: 11633 func = &bpf_skc_to_tcp_timewait_sock_proto; 11634 break; 11635 case BPF_FUNC_skc_to_tcp_request_sock: 11636 func = &bpf_skc_to_tcp_request_sock_proto; 11637 break; 11638 case BPF_FUNC_skc_to_udp6_sock: 11639 func = &bpf_skc_to_udp6_sock_proto; 11640 break; 11641 case BPF_FUNC_skc_to_unix_sock: 11642 func = &bpf_skc_to_unix_sock_proto; 11643 break; 11644 case BPF_FUNC_skc_to_mptcp_sock: 11645 func = &bpf_skc_to_mptcp_sock_proto; 11646 break; 11647 case BPF_FUNC_ktime_get_coarse_ns: 11648 return &bpf_ktime_get_coarse_ns_proto; 11649 default: 11650 return bpf_base_func_proto(func_id, prog); 11651 } 11652 11653 if (!bpf_token_capable(prog->aux->token, CAP_PERFMON)) 11654 return NULL; 11655 11656 return func; 11657 } 11658 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
