From: "David S. Miller" <davem@redhat.com>
To: an7 <an3h0ny@yahoo.fr>
Cc: linux-kernel@vger.kernel.org, netdev@oss.sgi.com
Subject: Re: Useless networking code in 2.4.x ?
Date: Thu, 23 Oct 2003 03:31:00 -0700 [thread overview]
Message-ID: <20031023033100.1bc47d31.davem@redhat.com> (raw)
In-Reply-To: <20031023085801.40580.qmail@web11105.mail.yahoo.com>
On Thu, 23 Oct 2003 10:58:01 +0200 (CEST)
an7 <an3h0ny@yahoo.fr> wrote:
> If we have a look at tcp_recv_skb, and
> tcp_read_sock(),
>
> we notice that there is a SYN check, and if the flag
> is on, we do offset-- (sequence number not
> corresponding to real data byte).
>
> This Syn check is useless, as the function cannot be
> called at the beginning of a connection (since we have
> not copied_seq filled with the last sequence number of
> the last packet passed to the upper layer)
>
> What do you think of that ?
Please next time, take this kind of question to netdev@oss.sgi.com
where the networking developers are, most of them are not subscribed
to linux-kernel.
As to your question, if we ever support accepting data in the
initial final SYN-ACK packet, this code would be needed, so it's
better to keep this code around.
prev parent reply other threads:[~2003-10-23 10:31 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-10-23 8:58 Useless networking code in 2.4.x ? an7
2003-10-23 10:31 ` David S. Miller [this message]
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