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>

1 files changed, 0 insertions, 3 deletions

diff --git a/net/ipv4/tcp_timer.c b/net/ipv4/tcp_timer.c
index 74a6aa003657..ecd44b0c45f1 100644
--- 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: