On Fri, 28 Aug 2020 at 00:02, Alexei Starovoitov <alexei.starovoitov@xxxxxxxxx> wrote: > > From: Alexei Starovoitov <ast@xxxxxxxxxx> > [...] > diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c > index 6f5a9f51cc03..3ebfdb7bd427 100644 [...] > > +/* non exhaustive list of sleepable bpf_lsm_*() functions */ > +BTF_SET_START(btf_sleepable_lsm_hooks) > +#ifdef CONFIG_BPF_LSM > +BTF_ID(func, bpf_lsm_file_mprotect) > +BTF_ID(func, bpf_lsm_bprm_committed_creds) > +#endif > +BTF_SET_END(btf_sleepable_lsm_hooks) > + I'm getting: FAILED unresolved symbol btf_sleepable_lsm_hooks when CONFIG_BPF_LSM is not set. Adding a BTF_UNUSED_ID unconditionally to the set helps, but I'm on a BTF limb here, so there might be a more correct/obvious workaround here... Björn
