On 06/04/2018 05:53 PM, Yonghong Song wrote:
> Commit bf6fa2c893c5 ("bpf: implement bpf_get_current_cgroup_id()
> helper") introduced a new helper bpf_get_current_cgroup_id().
> The helper has a dependency on CONFIG_CGROUPS.
>
> When CONFIG_CGROUPS is not defined, using the helper will result
> the following verifier error:
> kernel subsystem misconfigured func bpf_get_current_cgroup_id#80
> which is hard for users to interpret.
> Guarding the reference to bpf_get_current_cgroup_id_proto with
> CONFIG_CGROUPS will result in below better message:
> unknown func bpf_get_current_cgroup_id#80
>
> Fixes: bf6fa2c893c5 ("bpf: implement bpf_get_current_cgroup_id() helper")
> Suggested-by: Daniel Borkmann <dan...@iogearbox.net>
> Signed-off-by: Yonghong Song <y...@fb.com>
Applied to bpf-next, thanks Yonghong!
