netdev - Re: [PATCH net-next 2/3] bpf: introduce bpf_perf_event

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Message-ID: <20151023143943.GC17308@twins.programming.kicks-ass.net>
Date:	Fri, 23 Oct 2015 16:39:43 +0200
From:	Peter Zijlstra <peterz@...radead.org>
To:	Alexei Starovoitov <ast@...mgrid.com>
Cc:	"David S. Miller" <davem@...emloft.net>,
	Ingo Molnar <mingo@...nel.org>, Wang Nan <wangnan0@...wei.com>,
	He Kuang <hekuang@...wei.com>,
	Arnaldo Carvalho de Melo <acme@...radead.org>,
	Daniel Borkmann <daniel@...earbox.net>, netdev@...r.kernel.org,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH net-next 2/3] bpf: introduce bpf_perf_event_output()
 helper

On Tue, Oct 20, 2015 at 08:02:34PM -0700, Alexei Starovoitov wrote:
> +static const struct bpf_func_proto bpf_perf_event_output_proto = {
> +	.func		= bpf_perf_event_output,
> +	.gpl_only	= false,

Oh ?

> +	.ret_type	= RET_INTEGER,
> +	.arg1_type	= ARG_PTR_TO_CTX,
> +	.arg2_type	= ARG_CONST_MAP_PTR,
> +	.arg3_type	= ARG_ANYTHING,
> +	.arg4_type	= ARG_PTR_TO_STACK,
> +	.arg5_type	= ARG_CONST_STACK_SIZE,
> +};
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