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

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Message-Id: <20170526.105533.1718406512698133332.davem@davemloft.net>
Date:   Fri, 26 May 2017 10:55:33 -0400 (EDT)
From:   David Miller <davem@...emloft.net>
To:     ast@...com
Cc:     peterz@...radead.org, bgregg@...flix.com, daniel@...earbox.net,
        qinteng@...com, netdev@...r.kernel.org,
        linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 net-next 1/3] perf, bpf: Add BPF support to all
 perf_event types

From: Alexei Starovoitov <ast@...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.