tree: https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git master head: 18c107a1f120d095404d141dfad8f594bdc44020 commit: 3908fcddc65d04e069b03be49b33fae90e424631 [11295/12552] bpf: fix lsm_cgroup build errors on esoteric configs config: x86_64-randconfig-a016-20220718 (https://download.01.org/0day-ci/archive/20220724/202207242322.9ymWznA0-lkp@xxxxxxxxx/config) compiler: gcc-11 (Debian 11.3.0-3) 11.3.0 reproduce (this is a W=1 build): # https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/?id=3908fcddc65d04e069b03be49b33fae90e424631 git remote add linux-next https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git git fetch --no-tags linux-next master git checkout 3908fcddc65d04e069b03be49b33fae90e424631 # save the config file mkdir build_dir && cp config build_dir/.config make W=1 O=build_dir ARCH=x86_64 SHELL=/bin/bash If you fix the issue, kindly add following tag where applicable Reported-by: kernel test robot <lkp@xxxxxxxxx> Note: the linux-next/master HEAD 18c107a1f120d095404d141dfad8f594bdc44020 builds fine. It may have been fixed somewhere. All errors (new ones prefixed by >>): ld: vmlinux.o: in function `cgroup_bpf_release': cgroup.c:(.text+0x22faf7): undefined reference to `bpf_trampoline_unlink_cgroup_shim' ld: cgroup.c:(.text+0x22fb46): undefined reference to `bpf_trampoline_unlink_cgroup_shim' ld: vmlinux.o: in function `__cgroup_bpf_attach': >> cgroup.c:(.text+0x23039c): undefined reference to `bpf_trampoline_link_cgroup_shim' ld: cgroup.c:(.text+0x2303dd): undefined reference to `bpf_trampoline_unlink_cgroup_shim' ld: cgroup.c:(.text+0x230411): undefined reference to `bpf_trampoline_unlink_cgroup_shim' ld: vmlinux.o: in function `__cgroup_bpf_detach': cgroup.c:(.text+0x23096c): undefined reference to `bpf_trampoline_unlink_cgroup_shim' ld: vmlinux.o: in function `bpf_cgroup_link_release': cgroup.c:(.text+0x230a57): undefined reference to `bpf_trampoline_unlink_cgroup_shim' -- 0-DAY CI Kernel Test Service https://01.org/lkp
