* Josef Bacik <jo...@toxicpanda.com> wrote:

> @@ -551,6 +578,10 @@ static const struct bpf_func_proto 
> *kprobe_prog_func_proto(enum bpf_func_id func
>               return &bpf_get_stackid_proto;
>       case BPF_FUNC_perf_event_read_value:
>               return &bpf_perf_event_read_value_proto;
> +     case BPF_FUNC_override_return:
> +             pr_warn_ratelimited("%s[%d] is installing a program with 
> bpf_override_return helper that may cause unexpected behavior!",
> +                                 current->comm, task_pid_nr(current));
> +             return &bpf_override_return_proto;

So if this new functionality is used we'll always print this into the syslog?

The warning is also a bit passive aggressive about informing the user: what 
unexpected behavior can happen, what is the worst case?

Thanks,

        Ingo

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