Hi Menglong, 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/Menglong-Dong/bpf-tracing-add-support-to-record-and-check-the-accessed-args/20240311-173954 base: https://git.kernel.org/pub/scm/linux/kernel/git/bpf/bpf-next.git master patch link: https://lore.kernel.org/r/20240311093526.1010158-7-dongmenglong.8%40bytedance.com patch subject: [PATCH bpf-next v2 6/9] bpf: tracing: add multi-link support config: alpha-allyesconfig (https://download.01.org/0day-ci/archive/20240312/202403120515.LMAOyTdG-lkp@xxxxxxxxx/config) compiler: alpha-linux-gcc (GCC) 13.2.0 reproduce (this is a W=1 build): (https://download.01.org/0day-ci/archive/20240312/202403120515.LMAOyTdG-lkp@xxxxxxxxx/reproduce) If you fix the issue in a separate patch/commit (i.e. not just a new version of the same patch/commit), kindly add following tags | Reported-by: kernel test robot <lkp@xxxxxxxxx> | Closes: https://lore.kernel.org/oe-kbuild-all/202403120515.LMAOyTdG-lkp@xxxxxxxxx/ All errors (new ones prefixed by >>): kernel/bpf/syscall.c: In function 'bpf_tracing_multi_link_release': >> kernel/bpf/syscall.c:3538:9: error: implicit declaration of function 'bpf_trampoline_multi_unlink_prog'; did you mean 'bpf_trampoline_unlink_prog'? [-Werror=implicit-function-declaration] 3538 | bpf_trampoline_multi_unlink_prog(&multi_link->link); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | bpf_trampoline_unlink_prog kernel/bpf/syscall.c: In function 'bpf_tracing_prog_attach_multi': >> kernel/bpf/syscall.c:3815:15: error: implicit declaration of function 'bpf_trampoline_multi_link_prog'; did you mean 'bpf_trampoline_unlink_prog'? [-Werror=implicit-function-declaration] 3815 | err = bpf_trampoline_multi_link_prog(&link->link); | ^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ | bpf_trampoline_unlink_prog cc1: some warnings being treated as errors vim +3538 kernel/bpf/syscall.c 3532 3533 static void bpf_tracing_multi_link_release(struct bpf_link *link) 3534 { 3535 struct bpf_tracing_multi_link *multi_link = 3536 container_of(link, struct bpf_tracing_multi_link, link.link); 3537 > 3538 bpf_trampoline_multi_unlink_prog(&multi_link->link); 3539 __bpf_tracing_multi_link_release(multi_link); 3540 } 3541 -- 0-DAY CI Kernel Test Service https://github.com/intel/lkp-tests/wiki
