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Date: Tue, 15 Jun 2021 17:19:24 +0200
From: Florian Westphal <fw@strlen.de>
To: wujianguo106@163.com
Cc: mptcp@lists.linux.dev, pabeni@redhat.com, fw@strlen.de
Subject: Re: [PATCH v4 4/4] mptcp: avoid processing packet if a subflow reset
Message-ID: <20210615151924.GD1425@breakpoint.cc>
References: <1623726146-5911-1-git-send-email-wujianguo106@163.com>
 <1623726146-5911-5-git-send-email-wujianguo106@163.com>
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User-Agent: Mutt/1.10.1 (2018-07-13)

wujianguo106@163.com <wujianguo106@163.com> wrote:
> diff --git a/net/mptcp/options.c b/net/mptcp/options.c
> index 1aec01686c1a..01a1bf60b187 100644
> --- a/net/mptcp/options.c
> +++ b/net/mptcp/options.c
> @@ -926,6 +926,8 @@ static bool check_fully_established(struct mptcp_sock *msk, struct sock *ssk,
>  	return true;
>  
>  reset:
> +	TCP_SKB_CB(skb)->end_seq = TCP_SKB_CB(skb)->seq;

Magic.  Please at least add a comment here.