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Date:   Tue, 19 Feb 2019 10:30:37 -0800
From:   Eric Dumazet <eric.dumazet@...il.com>
To:     brakmo <brakmo@...com>, netdev <netdev@...r.kernel.org>
Cc:     Martin Lau <kafai@...com>, Alexei Starovoitov <ast@...com>
Subject: Re: [PATCH bpf-next 1/9] bpf: Add bpf helper bpf_tcp_enter_cwr



On 02/18/2019 09:38 PM, brakmo wrote:
> This patch adds a new bpf helper BPF_FUNC_tcp_enter_cwr
> "int bpf_tcp_enter_cwr(struct bpf_tcp_sock *tp)".
> It is added to BPF_PROG_TYPE_CGROUP_SKB typed bpf_prog
> which currently can be attached to the ingress and egress
> path.
>

Do we have the guarantee socket is a tcp one, and that the caller
owns the socket lock ?

Please describe the exact context for this helper being used.

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