diff options
Diffstat (limited to 'kernel/bpf')
| -rw-r--r-- | kernel/bpf/verifier.c | 13 |
1 files changed, 4 insertions, 9 deletions
diff --git a/kernel/bpf/verifier.c b/kernel/bpf/verifier.c index 20900a1bac12..21cdff35a2f9 100644 --- a/kernel/bpf/verifier.c +++ b/kernel/bpf/verifier.c @@ -1727,8 +1727,10 @@ static struct btf *__find_kfunc_desc_btf(struct bpf_verifier_env *env, return ERR_PTR(-EFAULT); btf = btf_get_by_fd(btf_fd); - if (IS_ERR(btf)) + if (IS_ERR(btf)) { + verbose(env, "invalid module BTF fd specified\n"); return btf; + } if (!btf_is_module(btf)) { verbose(env, "BTF fd for kfunc is not a module BTF\n"); @@ -1771,8 +1773,6 @@ static struct btf *find_kfunc_desc_btf(struct bpf_verifier_env *env, u32 func_id, s16 offset, struct module **btf_modp) { - struct btf *kfunc_btf; - if (offset) { if (offset < 0) { /* In the future, this can be allowed to increase limit @@ -1782,12 +1782,7 @@ static struct btf *find_kfunc_desc_btf(struct bpf_verifier_env *env, return ERR_PTR(-EINVAL); } - kfunc_btf = __find_kfunc_desc_btf(env, offset, btf_modp); - if (IS_ERR_OR_NULL(kfunc_btf)) { - verbose(env, "cannot find module BTF for func_id %u\n", func_id); - return kfunc_btf ?: ERR_PTR(-ENOENT); - } - return kfunc_btf; + return __find_kfunc_desc_btf(env, offset, btf_modp); } return btf_vmlinux ?: ERR_PTR(-ENOENT); } |