tcp: Remove debug macro of TCP_CHECK_TIMER

Now, TCP_CHECK_TIMER is not used for debuging, it does nothing.
And, it has been there for several years, maybe 6 years.

Remove it to keep code clearer.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/net/tcp.h b/include/net/tcp.h
index adfe6db..cda30ea 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -1068,8 +1068,6 @@ static inline int tcp_paws_reject(const struct tcp_options_received *rx_opt,
        return 1;
 }
 
-#define TCP_CHECK_TIMER(sk) do { } while (0)
-
 static inline void tcp_mib_init(struct net *net)
 {
        /* See RFC 2012 */

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index f9867d2..a17a5a7 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -873,9 +873,7 @@ int tcp_sendpage(struct sock *sk, struct page *page, int offset,
                                        flags);
 
        lock_sock(sk);
-       TCP_CHECK_TIMER(sk);
        res = do_tcp_sendpages(sk, &page, offset, size, flags);
-       TCP_CHECK_TIMER(sk);
        release_sock(sk);
        return res;
 }
@@ -916,7 +914,6 @@ int tcp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
        long timeo;
 
        lock_sock(sk);
-       TCP_CHECK_TIMER(sk);
 
        flags = msg->msg_flags;
        timeo = sock_sndtimeo(sk, flags & MSG_DONTWAIT);
@@ -1104,7 +1101,6 @@ wait_for_memory:
 out:
        if (copied)
                tcp_push(sk, flags, mss_now, tp->nonagle);
-       TCP_CHECK_TIMER(sk);
        release_sock(sk);
        return copied;
 
@@ -1123,7 +1119,6 @@ do_error:
                goto out;
 out_err:
        err = sk_stream_error(sk, flags, err);
-       TCP_CHECK_TIMER(sk);
        release_sock(sk);
        return err;
 }
@@ -1415,8 +1410,6 @@ int tcp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
 
        lock_sock(sk);
 
-       TCP_CHECK_TIMER(sk);
-
        err = -ENOTCONN;
        if (sk->sk_state == TCP_LISTEN)
                goto out;
@@ -1767,12 +1760,10 @@ skip_copy:
        /* Clean up data we have read: This will do ACK frames. */
        tcp_cleanup_rbuf(sk, copied);
 
-       TCP_CHECK_TIMER(sk);
        release_sock(sk);
        return copied;
 
 out:
-       TCP_CHECK_TIMER(sk);
        release_sock(sk);
        return err;
 

diff --git a/net/ipv4/tcp_ipv4.c b/net/ipv4/tcp_ipv4.c
index e2b9be2..ef5a90b 100644 (file)
--- a/net/ipv4/tcp_ipv4.c
+++ b/net/ipv4/tcp_ipv4.c
@@ -1556,12 +1556,10 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
 
        if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
                sock_rps_save_rxhash(sk, skb->rxhash);
-               TCP_CHECK_TIMER(sk);
                if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len)) {
                        rsk = sk;
                        goto reset;
                }
-               TCP_CHECK_TIMER(sk);
                return 0;
        }
 
@@ -1583,13 +1581,10 @@ int tcp_v4_do_rcv(struct sock *sk, struct sk_buff *skb)
        } else
                sock_rps_save_rxhash(sk, skb->rxhash);
 
-
-       TCP_CHECK_TIMER(sk);
        if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len)) {
                rsk = sk;
                goto reset;
        }
-       TCP_CHECK_TIMER(sk);
        return 0;
 
 reset:

diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 74a6aa0..ecd44b0 100644 (file)
--- a/net/ipv4/tcp_timer.c
+++ b/net/ipv4/tcp_timer.c
@@ -259,7 +259,6 @@ static void tcp_delack_timer(unsigned long data)
                tcp_send_ack(sk);
                NET_INC_STATS_BH(sock_net(sk), LINUX_MIB_DELAYEDACKS);
        }
-       TCP_CHECK_TIMER(sk);
 
 out:
        if (tcp_memory_pressure)
@@ -481,7 +480,6 @@ static void tcp_write_timer(unsigned long data)
                tcp_probe_timer(sk);
                break;
        }
-       TCP_CHECK_TIMER(sk);
 
 out:
        sk_mem_reclaim(sk);
@@ -589,7 +587,6 @@ static void tcp_keepalive_timer (unsigned long data)
                elapsed = keepalive_time_when(tp) - elapsed;
        }
 
-       TCP_CHECK_TIMER(sk);
        sk_mem_reclaim(sk);
 
 resched:

diff --git a/net/ipv6/tcp_ipv6.c b/net/ipv6/tcp_ipv6.c
index d6954e3..1d0ab55 100644 (file)
--- a/net/ipv6/tcp_ipv6.c
+++ b/net/ipv6/tcp_ipv6.c
@@ -1636,10 +1636,8 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
                opt_skb = skb_clone(skb, GFP_ATOMIC);
 
        if (sk->sk_state == TCP_ESTABLISHED) { /* Fast path */
-               TCP_CHECK_TIMER(sk);
                if (tcp_rcv_established(sk, skb, tcp_hdr(skb), skb->len))
                        goto reset;
-               TCP_CHECK_TIMER(sk);
                if (opt_skb)
                        goto ipv6_pktoptions;
                return 0;
@@ -1667,10 +1665,8 @@ static int tcp_v6_do_rcv(struct sock *sk, struct sk_buff *skb)
                }
        }
 
-       TCP_CHECK_TIMER(sk);
        if (tcp_rcv_state_process(sk, skb, tcp_hdr(skb), skb->len))
                goto reset;
-       TCP_CHECK_TIMER(sk);
        if (opt_skb)
                goto ipv6_pktoptions;
        return 0;