Merge tag 'gfs2-merge-window' of git://git.kernel.org/pub/scm/linux/kernel/git/steve...

[cascardo/linux.git] / include / net / tcp.h

diff --git a/include/net/tcp.h b/include/net/tcp.h
index 1f57c53..74efeda 100644 (file)
--- a/include/net/tcp.h
+++ b/include/net/tcp.h
@@ -27,7 +27,6 @@
 #include <linux/cache.h>
 #include <linux/percpu.h>
 #include <linux/skbuff.h>
-#include <linux/dmaengine.h>
 #include <linux/crypto.h>
 #include <linux/cryptohash.h>
 #include <linux/kref.h>
@@ -262,7 +261,6 @@ extern int sysctl_tcp_adv_win_scale;
 extern int sysctl_tcp_tw_reuse;
 extern int sysctl_tcp_frto;
 extern int sysctl_tcp_low_latency;
-extern int sysctl_tcp_dma_copybreak;
 extern int sysctl_tcp_nometrics_save;
 extern int sysctl_tcp_moderate_rcvbuf;
 extern int sysctl_tcp_tso_win_divisor;
@@ -368,7 +366,6 @@ 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);
-void tcp_cleanup_rbuf(struct sock *sk, int copied);
 int tcp_twsk_unique(struct sock *sk, struct sock *sktw, void *twp);
 void tcp_twsk_destructor(struct sock *sk);
 ssize_t tcp_splice_read(struct socket *sk, loff_t *ppos,
@@ -830,7 +827,7 @@ void tcp_get_available_congestion_control(char *buf, size_t len);
 void tcp_get_allowed_congestion_control(char *buf, size_t len);
 int tcp_set_allowed_congestion_control(char *allowed);
 int tcp_set_congestion_control(struct sock *sk, const char *name);
-int tcp_slow_start(struct tcp_sock *tp, u32 acked);
+void tcp_slow_start(struct tcp_sock *tp, u32 acked);
 void tcp_cong_avoid_ai(struct tcp_sock *tp, u32 w);
 
 u32 tcp_reno_ssthresh(struct sock *sk);
@@ -861,40 +858,6 @@ static inline void tcp_ca_event(struct sock *sk, const enum tcp_ca_event event)
                icsk->icsk_ca_ops->cwnd_event(sk, event);
 }
 
-/* RFC3168 : 6.1.1 SYN packets must not have ECT/ECN bits set
- *
- * If we receive a SYN packet with these bits set, it means a
- * network is playing bad games with TOS bits. In order to
- * avoid possible false congestion notifications, we disable
- * TCP ECN negociation.
- *
- * Exception: tcp_ca wants ECN. This is required for DCTCP
- * congestion control; it requires setting ECT on all packets,
- * including SYN. We inverse the test in this case: If our
- * local socket wants ECN, but peer only set ece/cwr (but not
- * ECT in IP header) its probably a non-DCTCP aware sender.
- */
-static inline void
-TCP_ECN_create_request(struct request_sock *req, const struct sk_buff *skb,
-                      const struct sock *listen_sk)
-{
-       const struct tcphdr *th = tcp_hdr(skb);
-       const struct net *net = sock_net(listen_sk);
-       bool th_ecn = th->ece && th->cwr;
-       bool ect, need_ecn;
-
-       if (!th_ecn)
-               return;
-
-       ect = !INET_ECN_is_not_ect(TCP_SKB_CB(skb)->ip_dsfield);
-       need_ecn = tcp_ca_needs_ecn(listen_sk);
-
-       if (!ect && !need_ecn && net->ipv4.sysctl_tcp_ecn)
-               inet_rsk(req)->ecn_ok = 1;
-       else if (ect && need_ecn)
-               inet_rsk(req)->ecn_ok = 1;
-}
-
 /* These functions determine how the current flow behaves in respect of SACK
  * handling. SACK is negotiated with the peer, and therefore it can vary
  * between different flows.
@@ -1094,12 +1057,6 @@ static inline void tcp_prequeue_init(struct tcp_sock *tp)
        tp->ucopy.len = 0;
        tp->ucopy.memory = 0;
        skb_queue_head_init(&tp->ucopy.prequeue);
-#ifdef CONFIG_NET_DMA
-       tp->ucopy.dma_chan = NULL;
-       tp->ucopy.wakeup = 0;
-       tp->ucopy.pinned_list = NULL;
-       tp->ucopy.dma_cookie = 0;
-#endif
 }
 
 bool tcp_prequeue(struct sock *sk, struct sk_buff *skb);