From: Peter Zijlstra <peterz@infradead.org>
Subject: Re: [PATCH net-next 2/3] bpf: introduce bpf_perf_event_output()
 helper
Date: Fri, 23 Oct 2015 16:39:43 +0200
Message-ID: <20151023143943.GC17308@twins.programming.kicks-ass.net>
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 <1445396556-4854-3-git-send-email-ast@kernel.org>
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Cc: "David S. Miller" <davem@davemloft.net>,
	Ingo Molnar <mingo@kernel.org>, Wang Nan <wangnan0@huawei.com>,
	He Kuang <hekuang@huawei.com>,
	Arnaldo Carvalho de Melo <acme@infradead.org>,
	Daniel Borkmann <daniel@iogearbox.net>, netdev@vger.kernel.org,
	linux-kernel@vger.kernel.org
To: Alexei Starovoitov <ast@plumgrid.com>
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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,
> +};