Hi Yonghong, [auto build test ERROR on net-next/master]
url: https://github.com/0day-ci/linux/commits/Yonghong-Song/bpf-permit-multiple-bpf-attachments-for-a-single-perf-tracepoint-event/20171024-080608 config: i386-randconfig-h1-10241031 (attached as .config) compiler: gcc-5 (Debian 5.4.1-2) 5.4.1 20160904 reproduce: # save the attached .config to linux build tree make ARCH=i386 All errors (new ones prefixed by >>): kernel/events/core.o: In function `_free_event': core.c:(.text+0x5f1e): undefined reference to `perf_event_detach_bpf_prog' kernel/events/core.o: In function `perf_ioctl': >> core.c:(.text+0x72b3): undefined reference to `perf_event_attach_bpf_prog' --- 0-DAY kernel test infrastructure Open Source Technology Center https://lists.01.org/pipermail/kbuild-all Intel Corporation
.config.gz
Description: application/gzip