tcp: Remove unused tcpct declarations and comments

Remove declaration, 4 defines and confusing comment that are no longer used
since 1a2c6181c4 ("tcp: Remove TCPCT").

Signed-off-by: Dmitry Popov <dp@highloadlab.com>
Acked-by: Christoph Paasch <christoph.paasch@uclouvain.be>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/include/linux/tcp.h b/include/linux/tcp.h
index 9640803..d686334 100644 (file)
--- a/include/linux/tcp.h
+++ b/include/linux/tcp.h
@@ -107,7 +107,6 @@ static inline void tcp_clear_options(struct tcp_options_received *rx_opt)
  * only four options will fit in a standard TCP header */
 #define TCP_NUM_SACKS 4
 
-struct tcp_cookie_values;
 struct tcp_request_sock_ops;
 
 struct tcp_request_sock {

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 18fc999..27b652f 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -192,10 +192,6 @@ extern void tcp_time_wait(struct sock *sk, int state, int timeo);
 #define TCPOLEN_TIMESTAMP      10
 #define TCPOLEN_MD5SIG         18
 #define TCPOLEN_EXP_FASTOPEN_BASE  4
-#define TCPOLEN_COOKIE_BASE    2       /* Cookie-less header extension */
-#define TCPOLEN_COOKIE_PAIR    3       /* Cookie pair header extension */
-#define TCPOLEN_COOKIE_MIN     (TCPOLEN_COOKIE_BASE+TCP_COOKIE_MIN)
-#define TCPOLEN_COOKIE_MAX     (TCPOLEN_COOKIE_BASE+TCP_COOKIE_MAX)
 
 /* But this is what stacks really send out. */
 #define TCPOLEN_TSTAMP_ALIGNED         12

diff --git a/net/ipv4/tcp.c b/net/ipv4/tcp.c
index c27e813..ab64eea 100644 (file)
--- a/net/ipv4/tcp.c
+++ b/net/ipv4/tcp.c
@@ -410,10 +410,6 @@ void tcp_init_sock(struct sock *sk)
 
        icsk->icsk_sync_mss = tcp_sync_mss;
 
-       /* Presumed zeroed, in order of appearance:
-        *      cookie_in_always, cookie_out_never,
-        *      s_data_constant, s_data_in, s_data_out
-        */
        sk->sk_sndbuf = sysctl_tcp_wmem[1];
        sk->sk_rcvbuf = sysctl_tcp_rmem[1];