Factorize code to get tcp header from skb. It makes no sense
to duplicate code in callers.
Signed-off-by: Eric Dumazet <eduma...@google.com>
---
include/net/tcp.h | 3 +--
net/ipv4/tcp_input.c | 4 ++--
net/ipv4/tcp_ipv4.c | 2 +-
net/ipv4/tcp_minisocks.c | 2 +-
net/ipv6/tcp_ipv6.c | 2 +-
5 files changed, 6 insertions(+), 7 deletions(-)
diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1cfdedbe47e1..1fe0bd458cb4 100644
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -365,8 +365,7 @@ void tcp_wfree(struct sk_buff *skb);
void tcp_write_timer_handler(struct sock *sk);
void tcp_delack_timer_handler(struct sock *sk);
int tcp_ioctl(struct sock *sk, int cmd, unsigned long arg);
-int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
- const struct tcphdr *th);
+int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb);
void tcp_rcv_established(struct sock *sk, struct sk_buff *skb,
const struct tcphdr *th, unsigned int len);
void tcp_rcv_space_adjust(struct sock *sk);
diff --git a/net/ipv4/tcp_input.c b/net/ipv4/tcp_input.c
index dcbddf12f4b3..67b27aee8d28 100644
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5698,11 +5698,11 @@ reset_and_undo:
* address independent.
*/
-int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
- const struct tcphdr *th)
+int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb)
{
struct tcp_sock *tp = tcp_sk(sk);
struct inet_connection_sock *icsk = inet_csk(sk);
+ const struct tcphdr *th = tcp_hdr(skb);
struct request_sock *req;
int queued = 0;
bool acceptable;
diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 7e5ae1e01009..67c0dc8bddbf 100644
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1420,7 +1420,7 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
} else
sock_rps_save_rxhash(sk, skb);
- if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb))) {
+ if (tcp_rcv_state_process(sk, skb)) {
rsk = sk;
goto reset;
}
diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index 9c7c61cf7462..139668cc2347 100644
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -821,7 +821,7 @@ int tcp_child_process(struct sock *parent, struct sock
*child,
int state = child->sk_state;
if (!sock_owned_by_user(child)) {
- ret = tcp_rcv_state_process(child, skb, tcp_hdr(skb));
+ ret = tcp_rcv_state_process(child, skb);
/* Wakeup parent, send SIGIO */
if (state == TCP_SYN_RECV && child->sk_state != state)
parent->sk_data_ready(parent);
diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index b6e473f0f62e..334d548a0cf6 100644
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1272,7 +1272,7 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff
*skb)
} else
sock_rps_save_rxhash(sk, skb);
- if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb)))
+ if (tcp_rcv_state_process(sk, skb))
goto reset;
if (opt_skb)
goto ipv6_pktoptions;
--
2.6.0.rc2.230.g3dd15c0
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