linux-kernel - Re: [PATCH v5 2/4] bpf: Add new bpf map type to store the pointer to struct perf

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Message-ID: <55BBA4C8.1030805@plumgrid.com>
Date:	Fri, 31 Jul 2015 09:39:36 -0700
From:	Alexei Starovoitov <ast@...mgrid.com>
To:	Kaixu Xia <xiakaixu@...wei.com>, davem@...emloft.net,
	acme@...nel.org, mingo@...hat.com, a.p.zijlstra@...llo.nl,
	masami.hiramatsu.pt@...achi.com, jolsa@...nel.org,
	daniel@...earbox.net
Cc:	wangnan0@...wei.com, linux-kernel@...r.kernel.org,
	pi3orama@....com, hekuang@...wei.com, netdev@...r.kernel.org
Subject: Re: [PATCH v5 2/4] bpf: Add new bpf map type to store the pointer to
 struct perf_event

On 7/31/15 4:59 AM, Kaixu Xia wrote:
> +	/*
> +	 * prevent some crazy events so we can make our life easier
> +	 */
> +	if (event->attr.type != PERF_TYPE_RAW &&
> +	    event->attr.type != PERF_TYPE_HARDWARE) {
> +		perf_event_release_kernel(event);
> +		return ERR_PTR(-EINVAL);
> +	}

either remove the comment and make it clean.
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