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Date:   Thu, 26 Dec 2019 18:06:02 -0500
From:   Neal Cardwell <>
To:     Eric Dumazet <>
Cc:     "David S . Miller" <>,
        netdev <>,
        Eric Dumazet <>,
        Soheil Hassas Yeganeh <>,
        Yuchung Cheng <>,
        Martin KaFai Lau <>
Subject: Re: [PATCH net-next v2 2/5] tcp_cubic: remove one conditional from hystart_update()

On Mon, Dec 23, 2019 at 3:28 PM Eric Dumazet <> wrote:
> If we initialize ca->curr_rtt to ~0U, we do not need to test
> for zero value in hystart_update()
> We only read ca->curr_rtt if at least HYSTART_MIN_SAMPLES have
> been processed, and thus ca->curr_rtt will have a sane value.
> Signed-off-by: Eric Dumazet <>
> ---

Acked-by: Neal Cardwell <>


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