netdev - Re: [PATCH net-next 3/5] tcp: Print list of TFO-keys from proc

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Message-ID: <CAK6E8=cM3j9OMcOuhtCAcLp5A_KZkVKvwLaxfHVVCEzm5Zoomw@mail.gmail.com>
Date:   Mon, 17 Dec 2018 08:52:22 -0800
From:   Yuchung Cheng <ycheng@...gle.com>
To:     Eric Dumazet <eric.dumazet@...il.com>
Cc:     Christoph Paasch <cpaasch@...le.com>,
        netdev <netdev@...r.kernel.org>,
        Eric Dumazet <edumazet@...gle.com>,
        David Miller <davem@...emloft.net>
Subject: Re: [PATCH net-next 3/5] tcp: Print list of TFO-keys from proc

On Sun, Dec 16, 2018 at 10:32 PM Eric Dumazet <eric.dumazet@...il.com> wrote:
>
>
>
> On 12/14/2018 02:40 PM, Christoph Paasch wrote:
> > Print the list of the TFO-keys with a comma separated. For setting the
> > keys, we still only allow a single one to be set.
> >
>
> I wonder if some applications expecting current format could break
> after a formatting change.
I have the same concern as well. print the extra keys in a different
sysctl maybe? e.g. net.ipv4.tcp_fastopen_alt_keys
>