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Subject: Re: [PATCH net-next v2] tcp: minor optimization in tcp ack fast path
 processing
To:     Yafang Shao <laoar.shao@gmail.com>, davem@davemloft.net,
        edumazet@google.com
Cc:     netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
        Joe Perches <joe@perches.com>
References: <1541938210-11797-1-git-send-email-laoar.shao@gmail.com>
From:   Eric Dumazet <eric.dumazet@gmail.com>
Message-ID: <678e757d-7df1-4c5d-7acb-dd6b0f94a859@gmail.com>
Date:   Sun, 11 Nov 2018 06:34:09 -0800
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On 11/11/2018 04:10 AM, Yafang Shao wrote:
> Bitwise operation is a little faster.
> So I replace after() with using the flag FLAG_SND_UNA_ADVANCED as it is
> already set before.
> 
> In addtion, there's another similar improvement in tcp_cwnd_reduction().
> 
> Cc: Joe Perches <joe@perches.com>
> Suggested-by: Eric Dumazet <edumazet@google.com>
> Signed-off-by: Yafang Shao <laoar.shao@gmail.com>

Signed-off-by: Eric Dumazet <edumazet@google.com>

Thanks.