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[INET]: Remove struct dst_entry *dst from request_sock_ops.rtx_syn_ack.

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It looks like dst parameter is used in this API due to historical
reasons.  Actually, it is really used in the direct call to
tcp_v4_send_synack only.  So, create a wrapper for tcp_v4_send_synack
and remove dst from rtx_syn_ack.

Signed-off-by: Denis V. Lunev <den@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Denis V. Lunev
2008-02-29 11:43:03 -08:00
committed by David S. Miller
parent 58fbbed4fb
commit fd80eb942a
8 changed files with 55 additions and 57 deletions
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14
net/ipv4/tcp_ipv4.c
View File

@@ -723,8 +723,8 @@ static void tcp_v4_reqsk_send_ack(struct sk_buff *skb,
* This still operates on a request_sock only, not on a big
* socket.
*/
static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
struct dst_entry *dst)
static int __tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
struct dst_entry *dst)
{
const struct inet_request_sock *ireq = inet_rsk(req);
int err = -1;
@@ -732,7 +732,7 @@ static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
/* First, grab a route. */
if (!dst && (dst = inet_csk_route_req(sk, req)) == NULL)
goto out;
return -1;
skb = tcp_make_synack(sk, dst, req);
@@ -751,11 +751,15 @@ static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req,
err = net_xmit_eval(err);
}
out:
dst_release(dst);
return err;
}
static int tcp_v4_send_synack(struct sock *sk, struct request_sock *req)
{
return __tcp_v4_send_synack(sk, req, NULL);
}
/*
* IPv4 request_sock destructor.
*/
@@ -1380,7 +1384,7 @@ int tcp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
}
tcp_rsk(req)->snt_isn = isn;
if (tcp_v4_send_synack(sk, req, dst))
if (__tcp_v4_send_synack(sk, req, dst))
goto drop_and_free;
if (want_cookie) {