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Date:   Fri, 06 Mar 2020 06:56:55 -0800
From:   John Fastabend <>
To:     Lorenz Bauer <>,,
        Daniel Borkmann <>,
        Jakub Sitnicki <>,
        Lorenz Bauer <>,
        "David S. Miller" <>,
        Jakub Kicinski <>,
        Eric Dumazet <>,
        Alexey Kuznetsov <>,
        Hideaki YOSHIFUJI <>,
        Alexei Starovoitov <>
Subject: RE: [PATCH bpf-next v3 01/12] bpf: sockmap: only check ULP for TCP

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 <>
> ---

Acked-by: John Fastabend <>

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