tcp: remove unused len argument from tcp_rcv_state_process()

Once we realize tcp_rcv_synsent_state_process() does not use
its 'len' argument and we get rid of it, then it becomes clear
this argument is no longer used in tcp_rcv_state_process()

Signed-off-by: Eric Dumazet <edumazet@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index cdbf63d..1cfdedb 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -366,7 +366,7 @@ 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, unsigned int len);
+                         const struct tcphdr *th);
 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 4964d53..dcbddf1 100644 (file)
--- a/net/ipv4/tcp_input.c
+++ b/net/ipv4/tcp_input.c
@@ -5472,7 +5472,7 @@ static bool tcp_rcv_fastopen_synack(struct sock *sk, struct sk_buff *synack,
 }
 
 static int tcp_rcv_synsent_state_process(struct sock *sk, struct sk_buff *skb,
-                                        const struct tcphdr *th, unsigned int len)
+                                        const struct tcphdr *th)
 {
        struct inet_connection_sock *icsk = inet_csk(sk);
        struct tcp_sock *tp = tcp_sk(sk);
@@ -5699,7 +5699,7 @@ reset_and_undo:
  */
 
 int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
-                         const struct tcphdr *th, unsigned int len)
+                         const struct tcphdr *th)
 {
        struct tcp_sock *tp = tcp_sk(sk);
        struct inet_connection_sock *icsk = inet_csk(sk);
@@ -5749,7 +5749,7 @@ int tcp_rcv_state_process(struct sock *sk, struct sk_buff *skb,
                goto discard;
 
        case TCP_SYN_SENT:
-               queued = tcp_rcv_synsent_state_process(sk, skb, th, len);
+               queued = tcp_rcv_synsent_state_process(sk, skb, th);
                if (queued >= 0)
                        return queued;
 

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index 4300d01..7e5ae1e 100644 (file)
--- 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), skb->len)) {
+       if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb))) {
                rsk = sk;
                goto reset;
        }

diff --git a/net/ipv4/tcp_minisocks.c b/net/ipv4/tcp_minisocks.c
index e4fe62b..9c7c61c 100644 (file)
--- a/net/ipv4/tcp_minisocks.c
+++ b/net/ipv4/tcp_minisocks.c
@@ -821,8 +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),
-                                           skb->len);
+               ret = tcp_rcv_state_process(child, skb, tcp_hdr(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 c47e5c8..b6e473f 100644 (file)
--- 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), skb->len))
+       if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb)))
                goto reset;
        if (opt_skb)
                goto ipv6_pktoptions;