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tcp: Change return value of tcp_rcv_established()

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tcp_rcv_established() returns only one value namely 0. We change the return
value to void (as suggested by David Miller).

After commit 0c24604b (tcp: implement RFC 5961 4.2), we no longer send RSTs in
response to SYNs. We can remove the check and processing on the return value of
tcp_rcv_established().

We also fix jtcp_rcv_established() in tcp_probe.c to match that of
tcp_rcv_established().

Signed-off-by: Vijay Subramanian <subramanian.vijay@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Vijay Subramanian
2013-09-03 12:23:22 -07:00
committed by David S. Miller
parent cc8c6c1b21
commit c995ae2259
5 changed files with 12 additions and 18 deletions
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5
net/ipv4/tcp_probe.c
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@@ -122,8 +122,8 @@ static inline int tcp_probe_avail(void)
* Hook inserted to be called before each receive packet.
* Note: arguments must match tcp_rcv_established()!
*/
static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct tcphdr *th, unsigned int len)
static void jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct tcphdr *th, unsigned int len)
{
const struct tcp_sock *tp = tcp_sk(sk);
const struct inet_sock *inet = inet_sk(sk);
@@ -172,7 +172,6 @@ static int jtcp_rcv_established(struct sock *sk, struct sk_buff *skb,
}
jprobe_return();
return 0;
}
static struct jprobe tcp_jprobe = {