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Date:   Fri, 06 Mar 2020 06:56:55 -0800
From:   John Fastabend <john.fastabend@...il.com>
To:     Lorenz Bauer <lmb@...udflare.com>, john.fastabend@...il.com,
        Daniel Borkmann <daniel@...earbox.net>,
        Jakub Sitnicki <jakub@...udflare.com>,
        Lorenz Bauer <lmb@...udflare.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        Alexey Kuznetsov <kuznet@....inr.ac.ru>,
        Hideaki YOSHIFUJI <yoshfuji@...ux-ipv6.org>,
        Alexei Starovoitov <ast@...nel.org>
Cc:     kernel-team@...udflare.com, netdev@...r.kernel.org,
        bpf@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: RE: [PATCH bpf-next v3 01/12] bpf: sockmap: only check ULP for TCP
 sockets

Lorenz Bauer wrote:
> The sock maj code checks that a socket does not have an active upper
> layer protocol before inserting it into the map. This requires casting
> via inet_csk, which isn't valid for UDP sockets.
> 
> Guard checks for ULP by checking inet_sk(sk)->is_icsk first.
> 
> Signed-off-by: Lorenz Bauer <lmb@...udflare.com>
> ---

Acked-by: John Fastabend <john.fastabend@...il.com>

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