netdev - Re: TCP minisock tcp_create_openreq

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Date:	Wed, 28 Feb 2007 09:10:10 -0300
From:	"Arnaldo Carvalho de Melo" <acme@...stprotocols.net>
To:	"KOVACS Krisztian" <hidden@...abit.hu>
Cc:	netdev@...r.kernel.org
Subject: Re: TCP minisock tcp_create_openreq_child() typo?

On 2/28/07, KOVACS Krisztian <hidden@...abit.hu> wrote:
>
>   Hi,
>
>   While reading TCP minisock code I've found this suspiciously looking
> code fragment:
>
> - 8< -
> struct sock *tcp_create_openreq_child(struct sock *sk, struct request_sock *req, struct sk_buff *skb)
> {
>         struct sock *newsk = inet_csk_clone(sk, req, GFP_ATOMIC);
>
>         if (newsk != NULL) {
>                 const struct inet_request_sock *ireq = inet_rsk(req);
>                 struct tcp_request_sock *treq = tcp_rsk(req);
>                 struct inet_connection_sock *newicsk = inet_csk(sk);
>                 struct tcp_sock *newtp;
> - 8< -
>
>   The above code initializes newicsk to inet_csk(sk), isn't that supposed
> to be inet_csk(newsk)?  As far as I can tell this might leave
> icsk_ack.last_seg_size zero even if we do have received data.

Good catch!

David, please apply the attached patch.

Signed-off-by: Arnaldo Carvalho de Melo <acme@...hat.com>

Thanks Krisztian!

- Arnaldo

View attachment "newicsk.patch" of type "text/x-patch" (559 bytes)