netdev - Re: [PATCH v4] tcp: make retransmitted SKB fit into the send window

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Date:   Wed, 13 Jul 2022 01:40:46 +0000
From:   patchwork-bot+netdevbpf@...nel.org
To:     Yonglong Li <liyonglong@...natelecom.cn>
Cc:     netdev@...r.kernel.org, davem@...emloft.net, dsahern@...nel.org,
        edumazet@...gle.com, kuba@...nel.org, pabeni@...hat.com
Subject: Re: [PATCH v4] tcp: make retransmitted SKB fit into the send window

Hello:

This patch was applied to netdev/net-next.git (master)
by Jakub Kicinski <kuba@...nel.org>:

On Mon, 11 Jul 2022 17:47:18 +0800 you wrote:
> current code of __tcp_retransmit_skb only check TCP_SKB_CB(skb)->seq
> in send window, and TCP_SKB_CB(skb)->seq_end maybe out of send window.
> If receiver has shrunk his window, and skb is out of new window,  it
> should retransmit a smaller portion of the payload.
> 
> test packetdrill script:
>     0 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
>    +0 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
>    +0 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
> 
> [...]

Here is the summary with links:
  - [v4] tcp: make retransmitted SKB fit into the send window
    https://git.kernel.org/netdev/net-next/c/536a6c8e05f9

You are awesome, thank you!
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