Re: [PATCH v2 net-next 1/3] perf, bpf: Add BPF support to all perf_event types

[David Miller]

From: Alexei Starovoitov <a...@fb.com>
Date: Thu, 25 May 2017 22:55:47 -0700

> +     if (event->attach_state & PERF_ATTACH_TASK)
> +             goto err_out;

The attach_state member only exists when PERF_EVENTS is enabled.