linux-kernel - Re: [PATCH bpf-next v5 1/4] bpf: Be less specific about socket cookies guarantees

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Message-ID: <CACYkzJ6Sar+BQELJtTRdAhFReEpusa48N_7QDnMnXzBxcJC7kw@mail.gmail.com>
Date:   Wed, 20 Jan 2021 14:14:26 +0100
From:   KP Singh <kpsingh@...nel.org>
To:     Florent Revest <revest@...omium.org>
Cc:     bpf <bpf@...r.kernel.org>, Alexei Starovoitov <ast@...nel.org>,
        Daniel Borkmann <daniel@...earbox.net>,
        Andrii Nakryiko <andrii@...nel.org>,
        Florent Revest <revest@...gle.com>,
        open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH bpf-next v5 1/4] bpf: Be less specific about socket
 cookies guarantees

On Tue, Jan 19, 2021 at 5:00 PM Florent Revest <revest@...omium.org> wrote:
>
> Since "92acdc58ab11 bpf, net: Rework cookie generator as per-cpu one"
> socket cookies are not guaranteed to be non-decreasing. The
> bpf_get_socket_cookie helper descriptions are currently specifying that
> cookies are non-decreasing but we don't want users to rely on that.
>
> Reported-by: Daniel Borkmann <daniel@...earbox.net>
> Signed-off-by: Florent Revest <revest@...omium.org>

Acked-by: KP Singh <kpsingh@...nel.org>