diff options
| -rw-r--r-- | kernel/bpf/btf.c | 15 |
1 files changed, 13 insertions, 2 deletions
diff --git a/kernel/bpf/btf.c b/kernel/bpf/btf.c index a1c44c17ea9c..b2a248956100 100644 --- a/kernel/bpf/btf.c +++ b/kernel/bpf/btf.c @@ -6740,8 +6740,19 @@ int register_btf_kfunc_id_set(enum bpf_prog_type prog_type, int ret; btf = btf_get_module_btf(kset->owner); - if (IS_ERR_OR_NULL(btf)) - return btf ? PTR_ERR(btf) : -ENOENT; + if (!btf) { + if (!kset->owner && IS_ENABLED(CONFIG_DEBUG_INFO_BTF)) { + pr_err("missing vmlinux BTF, cannot register kfuncs\n"); + return -ENOENT; + } + if (kset->owner && IS_ENABLED(CONFIG_DEBUG_INFO_BTF_MODULES)) { + pr_err("missing module BTF, cannot register kfuncs\n"); + return -ENOENT; + } + return 0; + } + if (IS_ERR(btf)) + return PTR_ERR(btf); hook = bpf_prog_type_to_kfunc_hook(prog_type); ret = btf_populate_kfunc_set(btf, hook, kset); |