Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next

Pull networking updates from David Miller:

 1) Add BQL support to via-rhine, from Tino Reichardt.

 2) Integrate SWITCHDEV layer support into the DSA layer, so DSA drivers
    can support hw switch offloading.  From Floria Fainelli.

 3) Allow 'ip address' commands to initiate multicast group join/leave,
    from Madhu Challa.

 4) Many ipv4 FIB lookup optimizations from Alexander Duyck.

 5) Support EBPF in cls_bpf classifier and act_bpf action, from Daniel
    Borkmann.

 6) Remove the ugly compat support in ARP for ugly layers like ax25,
    rose, etc.  And use this to clean up the neigh layer, then use it to
    implement MPLS support.  All from Eric Biederman.

 7) Support L3 forwarding offloading in switches, from Scott Feldman.

 8) Collapse the LOCAL and MAIN ipv4 FIB tables when possible, to speed
    up route lookups even further.  From Alexander Duyck.

 9) Many improvements and bug fixes to the rhashtable implementation,
    from Herbert Xu and Thomas Graf.  In particular, in the case where
    an rhashtable user bulk adds a large number of items into an empty
    table, we expand the table much more sanely.

10) Don't make the tcp_metrics hash table per-namespace, from Eric
    Biederman.

11) Extend EBPF to access SKB fields, from Alexei Starovoitov.

12) Split out new connection request sockets so that they can be
    established in the main hash table.  Much less false sharing since
    hash lookups go direct to the request sockets instead of having to
    go first to the listener then to the request socks hashed
    underneath.  From Eric Dumazet.

13) Add async I/O support for crytpo AF_ALG sockets, from Tadeusz Struk.

14) Support stable privacy address generation for RFC7217 in IPV6.  From
    Hannes Frederic Sowa.

15) Hash network namespace into IP frag IDs, also from Hannes Frederic
    Sowa.

16) Convert PTP get/set methods to use 64-bit time, from Richard
    Cochran.

* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1816 commits)
  fm10k: Bump driver version to 0.15.2
  fm10k: corrected VF multicast update
  fm10k: mbx_update_max_size does not drop all oversized messages
  fm10k: reset head instead of calling update_max_size
  fm10k: renamed mbx_tx_dropped to mbx_tx_oversized
  fm10k: update xcast mode before synchronizing multicast addresses
  fm10k: start service timer on probe
  fm10k: fix function header comment
  fm10k: comment next_vf_mbx flow
  fm10k: don't handle mailbox events in iov_event path and always process mailbox
  fm10k: use separate workqueue for fm10k driver
  fm10k: Set PF queues to unlimited bandwidth during virtualization
  fm10k: expose tx_timeout_count as an ethtool stat
  fm10k: only increment tx_timeout_count in Tx hang path
  fm10k: remove extraneous "Reset interface" message
  fm10k: separate PF only stats so that VF does not display them
  fm10k: use hw->mac.max_queues for stats
  fm10k: only show actual queues, not the maximum in hardware
  fm10k: allow creation of VLAN on default vid
  fm10k: fix unused warnings
  ...

8 files changed, 92 insertions, 172 deletions

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index e4c144fa706f..bebc735f5afc 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -280,8 +280,7 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
 				       struct request_sock *req,
 				       struct dst_entry *dst);
 struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
-			    struct request_sock *req,
-			    struct request_sock **prev);
+			    struct request_sock *req);
 
 int dccp_child_process(struct sock *parent, struct sock *child,
 		       struct sk_buff *skb);
@@ -310,16 +309,15 @@ int compat_dccp_setsockopt(struct sock *sk, int level, int optname,
 			   char __user *optval, unsigned int optlen);
 #endif
 int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
-int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-		 size_t size);
-int dccp_recvmsg(struct kiocb *iocb, struct sock *sk,
-		 struct msghdr *msg, size_t len, int nonblock, int flags,
-		 int *addr_len);
+int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size);
+int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
+		 int flags, int *addr_len);
 void dccp_shutdown(struct sock *sk, int how);
 int inet_dccp_listen(struct socket *sock, int backlog);
 unsigned int dccp_poll(struct file *file, struct socket *sock,
 		       poll_table *wait);
 int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len);
+void dccp_req_err(struct sock *sk, u64 seq);
 
 struct sk_buff *dccp_ctl_make_reset(struct sock *sk, struct sk_buff *skb);
 int dccp_send_reset(struct sock *sk, enum dccp_reset_codes code);
diff --git a/net/dccp/diag.c b/net/dccp/diag.c
index 028fc43aacbd..5a45f8de5d99 100644
--- a/net/dccp/diag.c
+++ b/net/dccp/diag.c
@@ -49,13 +49,14 @@ static void dccp_diag_get_info(struct sock *sk, struct inet_diag_msg *r,
 }
 
 static void dccp_diag_dump(struct sk_buff *skb, struct netlink_callback *cb,
-		struct inet_diag_req_v2 *r, struct nlattr *bc)
+			   const struct inet_diag_req_v2 *r, struct nlattr *bc)
 {
 	inet_diag_dump_icsk(&dccp_hashinfo, skb, cb, r, bc);
 }
 
-static int dccp_diag_dump_one(struct sk_buff *in_skb, const struct nlmsghdr *nlh,
-		struct inet_diag_req_v2 *req)
+static int dccp_diag_dump_one(struct sk_buff *in_skb,
+			      const struct nlmsghdr *nlh,
+			      const struct inet_diag_req_v2 *req)
 {
 	return inet_diag_dump_one_icsk(&dccp_hashinfo, in_skb, nlh, req);
 }
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index e45b968613a4..2b4f21d34df6 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -89,10 +89,9 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 
 	if (inet->inet_saddr == 0)
 		inet->inet_saddr = fl4->saddr;
-	inet->inet_rcv_saddr = inet->inet_saddr;
-
+	sk_rcv_saddr_set(sk, inet->inet_saddr);
 	inet->inet_dport = usin->sin_port;
-	inet->inet_daddr = daddr;
+	sk_daddr_set(sk, daddr);
 
 	inet_csk(sk)->icsk_ext_hdr_len = 0;
 	if (inet_opt)
@@ -196,6 +195,32 @@ static void dccp_do_redirect(struct sk_buff *skb, struct sock *sk)
 		dst->ops->redirect(dst, sk, skb);
 }
 
+void dccp_req_err(struct sock *sk, u64 seq)
+	{
+	struct request_sock *req = inet_reqsk(sk);
+	struct net *net = sock_net(sk);
+
+	/*
+	 * ICMPs are not backlogged, hence we cannot get an established
+	 * socket here.
+	 */
+	WARN_ON(req->sk);
+
+	if (!between48(seq, dccp_rsk(req)->dreq_iss, dccp_rsk(req)->dreq_gss)) {
+		NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
+		reqsk_put(req);
+	} else {
+		/*
+		 * Still in RESPOND, just remove it silently.
+		 * There is no good way to pass the error to the newly
+		 * created socket, and POSIX does not want network
+		 * errors returned from accept().
+		 */
+		inet_csk_reqsk_queue_drop(req->rsk_listener, req);
+	}
+}
+EXPORT_SYMBOL(dccp_req_err);
+
 /*
  * This routine is called by the ICMP module when it gets some sort of error
  * condition. If err < 0 then the socket should be closed and the error
@@ -228,10 +253,11 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
 		return;
 	}
 
-	sk = inet_lookup(net, &dccp_hashinfo,
-			iph->daddr, dh->dccph_dport,
-			iph->saddr, dh->dccph_sport, inet_iif(skb));
-	if (sk == NULL) {
+	sk = __inet_lookup_established(net, &dccp_hashinfo,
+				       iph->daddr, dh->dccph_dport,
+				       iph->saddr, ntohs(dh->dccph_sport),
+				       inet_iif(skb));
+	if (!sk) {
 		ICMP_INC_STATS_BH(net, ICMP_MIB_INERRORS);
 		return;
 	}
@@ -240,6 +266,9 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
 		inet_twsk_put(inet_twsk(sk));
 		return;
 	}
+	seq = dccp_hdr_seq(dh);
+	if (sk->sk_state == DCCP_NEW_SYN_RECV)
+		return dccp_req_err(sk, seq);
 
 	bh_lock_sock(sk);
 	/* If too many ICMPs get dropped on busy
@@ -252,7 +281,6 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
 		goto out;
 
 	dp = dccp_sk(sk);
-	seq = dccp_hdr_seq(dh);
 	if ((1 << sk->sk_state) & ~(DCCPF_REQUESTING | DCCPF_LISTEN) &&
 	    !between48(seq, dp->dccps_awl, dp->dccps_awh)) {
 		NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
@@ -289,35 +317,6 @@ static void dccp_v4_err(struct sk_buff *skb, u32 info)
 	}
 
 	switch (sk->sk_state) {
-		struct request_sock *req , **prev;
-	case DCCP_LISTEN:
-		if (sock_owned_by_user(sk))
-			goto out;
-		req = inet_csk_search_req(sk, &prev, dh->dccph_dport,
-					  iph->daddr, iph->saddr);
-		if (!req)
-			goto out;
-
-		/*
-		 * ICMPs are not backlogged, hence we cannot get an established
-		 * socket here.
-		 */
-		WARN_ON(req->sk);
-
-		if (!between48(seq, dccp_rsk(req)->dreq_iss,
-				    dccp_rsk(req)->dreq_gss)) {
-			NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
-			goto out;
-		}
-		/*
-		 * Still in RESPOND, just remove it silently.
-		 * There is no good way to pass the error to the newly
-		 * created socket, and POSIX does not want network
-		 * errors returned from accept().
-		 */
-		inet_csk_reqsk_queue_drop(sk, req, prev);
-		goto out;
-
 	case DCCP_REQUESTING:
 	case DCCP_RESPOND:
 		if (!sock_owned_by_user(sk)) {
@@ -408,8 +407,8 @@ struct sock *dccp_v4_request_recv_sock(struct sock *sk, struct sk_buff *skb,
 
 	newinet		   = inet_sk(newsk);
 	ireq		   = inet_rsk(req);
-	newinet->inet_daddr	= ireq->ir_rmt_addr;
-	newinet->inet_rcv_saddr = ireq->ir_loc_addr;
+	sk_daddr_set(newsk, ireq->ir_rmt_addr);
+	sk_rcv_saddr_set(newsk, ireq->ir_loc_addr);
 	newinet->inet_saddr	= ireq->ir_loc_addr;
 	newinet->inet_opt	= ireq->opt;
 	ireq->opt	   = NULL;
@@ -449,14 +448,14 @@ static struct sock *dccp_v4_hnd_req(struct sock *sk, struct sk_buff *skb)
 	const struct dccp_hdr *dh = dccp_hdr(skb);
 	const struct iphdr *iph = ip_hdr(skb);
 	struct sock *nsk;
-	struct request_sock **prev;
 	/* Find possible connection requests. */
-	struct request_sock *req = inet_csk_search_req(sk, &prev,
-						       dh->dccph_sport,
+	struct request_sock *req = inet_csk_search_req(sk, dh->dccph_sport,
 						       iph->saddr, iph->daddr);
-	if (req != NULL)
-		return dccp_check_req(sk, skb, req, prev);
-
+	if (req) {
+		nsk = dccp_check_req(sk, skb, req);
+		reqsk_put(req);
+		return nsk;
+	}
 	nsk = inet_lookup_established(sock_net(sk), &dccp_hashinfo,
 				      iph->saddr, dh->dccph_sport,
 				      iph->daddr, dh->dccph_dport,
@@ -575,7 +574,7 @@ static void dccp_v4_reqsk_destructor(struct request_sock *req)
 	kfree(inet_rsk(req)->opt);
 }
 
-void dccp_syn_ack_timeout(struct sock *sk, struct request_sock *req)
+void dccp_syn_ack_timeout(const struct request_sock *req)
 {
 }
 EXPORT_SYMBOL(dccp_syn_ack_timeout);
@@ -624,7 +623,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
 		goto drop;
 
-	req = inet_reqsk_alloc(&dccp_request_sock_ops);
+	req = inet_reqsk_alloc(&dccp_request_sock_ops, sk);
 	if (req == NULL)
 		goto drop;
 
@@ -639,8 +638,10 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 		goto drop_and_free;
 
 	ireq = inet_rsk(req);
-	ireq->ir_loc_addr = ip_hdr(skb)->daddr;
-	ireq->ir_rmt_addr = ip_hdr(skb)->saddr;
+	sk_rcv_saddr_set(req_to_sk(req), ip_hdr(skb)->daddr);
+	sk_daddr_set(req_to_sk(req), ip_hdr(skb)->saddr);
+	ireq->ireq_family = AF_INET;
+	ireq->ir_iif = sk->sk_bound_dev_if;
 
 	/*
 	 * Step 3: Process LISTEN state
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index 6bcaa33cd804..9d0551092c6c 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -40,19 +40,6 @@
 static const struct inet_connection_sock_af_ops dccp_ipv6_mapped;
 static const struct inet_connection_sock_af_ops dccp_ipv6_af_ops;
 
-static void dccp_v6_hash(struct sock *sk)
-{
-	if (sk->sk_state != DCCP_CLOSED) {
-		if (inet_csk(sk)->icsk_af_ops == &dccp_ipv6_mapped) {
-			inet_hash(sk);
-			return;
-		}
-		local_bh_disable();
-		__inet6_hash(sk, NULL);
-		local_bh_enable();
-	}
-}
-
 /* add pseudo-header to DCCP checksum stored in skb->csum */
 static inline __sum16 dccp_v6_csum_finish(struct sk_buff *skb,
 				      const struct in6_addr *saddr,
@@ -98,11 +85,12 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		return;
 	}
 
-	sk = inet6_lookup(net, &dccp_hashinfo,
-			&hdr->daddr, dh->dccph_dport,
-			&hdr->saddr, dh->dccph_sport, inet6_iif(skb));
+	sk = __inet6_lookup_established(net, &dccp_hashinfo,
+					&hdr->daddr, dh->dccph_dport,
+					&hdr->saddr, ntohs(dh->dccph_sport),
+					inet6_iif(skb));
 
-	if (sk == NULL) {
+	if (!sk) {
 		ICMP6_INC_STATS_BH(net, __in6_dev_get(skb->dev),
 				   ICMP6_MIB_INERRORS);
 		return;
@@ -112,6 +100,9 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		inet_twsk_put(inet_twsk(sk));
 		return;
 	}
+	seq = dccp_hdr_seq(dh);
+	if (sk->sk_state == DCCP_NEW_SYN_RECV)
+		return dccp_req_err(sk, seq);
 
 	bh_lock_sock(sk);
 	if (sock_owned_by_user(sk))
@@ -121,7 +112,6 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 		goto out;
 
 	dp = dccp_sk(sk);
-	seq = dccp_hdr_seq(dh);
 	if ((1 << sk->sk_state) & ~(DCCPF_REQUESTING | DCCPF_LISTEN) &&
 	    !between48(seq, dp->dccps_awl, dp->dccps_awh)) {
 		NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
@@ -162,32 +152,6 @@ static void dccp_v6_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
 	/* Might be for an request_sock */
 	switch (sk->sk_state) {
-		struct request_sock *req, **prev;
-	case DCCP_LISTEN:
-		if (sock_owned_by_user(sk))
-			goto out;
-
-		req = inet6_csk_search_req(sk, &prev, dh->dccph_dport,
-					   &hdr->daddr, &hdr->saddr,
-					   inet6_iif(skb));
-		if (req == NULL)
-			goto out;
-
-		/*
-		 * ICMPs are not backlogged, hence we cannot get an established
-		 * socket here.
-		 */
-		WARN_ON(req->sk != NULL);
-
-		if (!between48(seq, dccp_rsk(req)->dreq_iss,
-				    dccp_rsk(req)->dreq_gss)) {
-			NET_INC_STATS_BH(net, LINUX_MIB_OUTOFWINDOWICMPS);
-			goto out;
-		}
-
-		inet_csk_reqsk_queue_drop(sk, req, prev);
-		goto out;
-
 	case DCCP_REQUESTING:
 	case DCCP_RESPOND:  /* Cannot happen.
 			       It can, it SYNs are crossed. --ANK */
@@ -330,17 +294,16 @@ static struct sock *dccp_v6_hnd_req(struct sock *sk,struct sk_buff *skb)
 {
 	const struct dccp_hdr *dh = dccp_hdr(skb);
 	const struct ipv6hdr *iph = ipv6_hdr(skb);
+	struct request_sock *req;
 	struct sock *nsk;
-	struct request_sock **prev;
-	/* Find possible connection requests. */
-	struct request_sock *req = inet6_csk_search_req(sk, &prev,
-							dh->dccph_sport,
-							&iph->saddr,
-							&iph->daddr,
-							inet6_iif(skb));
-	if (req != NULL)
-		return dccp_check_req(sk, skb, req, prev);
 
+	req = inet6_csk_search_req(sk, dh->dccph_sport, &iph->saddr,
+				   &iph->daddr, inet6_iif(skb));
+	if (req) {
+		nsk = dccp_check_req(sk, skb, req);
+		reqsk_put(req);
+		return nsk;
+	}
 	nsk = __inet6_lookup_established(sock_net(sk), &dccp_hashinfo,
 					 &iph->saddr, dh->dccph_sport,
 					 &iph->daddr, ntohs(dh->dccph_dport),
@@ -386,7 +349,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	if (sk_acceptq_is_full(sk) && inet_csk_reqsk_queue_young(sk) > 1)
 		goto drop;
 
-	req = inet_reqsk_alloc(&dccp6_request_sock_ops);
+	req = inet_reqsk_alloc(&dccp6_request_sock_ops, sk);
 	if (req == NULL)
 		goto drop;
 
@@ -403,6 +366,7 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 	ireq = inet_rsk(req);
 	ireq->ir_v6_rmt_addr = ipv6_hdr(skb)->saddr;
 	ireq->ir_v6_loc_addr = ipv6_hdr(skb)->daddr;
+	ireq->ireq_family = AF_INET6;
 
 	if (ipv6_opt_accepted(sk, skb, IP6CB(skb)) ||
 	    np->rxopt.bits.rxinfo || np->rxopt.bits.rxoinfo ||
@@ -469,11 +433,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 
 		memcpy(newnp, np, sizeof(struct ipv6_pinfo));
 
-		ipv6_addr_set_v4mapped(newinet->inet_daddr, &newsk->sk_v6_daddr);
-
-		ipv6_addr_set_v4mapped(newinet->inet_saddr, &newnp->saddr);
-
-		newsk->sk_v6_rcv_saddr = newnp->saddr;
+		newnp->saddr = newsk->sk_v6_rcv_saddr;
 
 		inet_csk(newsk)->icsk_af_ops = &dccp_ipv6_mapped;
 		newsk->sk_backlog_rcv = dccp_v4_do_rcv;
@@ -591,7 +551,7 @@ static struct sock *dccp_v6_request_recv_sock(struct sock *sk,
 		dccp_done(newsk);
 		goto out;
 	}
-	__inet6_hash(newsk, NULL);
+	__inet_hash(newsk, NULL);
 
 	return newsk;
 
@@ -916,9 +876,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 			sk->sk_backlog_rcv = dccp_v6_do_rcv;
 			goto failure;
 		}
-		ipv6_addr_set_v4mapped(inet->inet_saddr, &np->saddr);
-		ipv6_addr_set_v4mapped(inet->inet_rcv_saddr, &sk->sk_v6_rcv_saddr);
-
+		np->saddr = sk->sk_v6_rcv_saddr;
 		return err;
 	}
 
@@ -1061,7 +1019,7 @@ static struct proto dccp_v6_prot = {
 	.sendmsg	   = dccp_sendmsg,
 	.recvmsg	   = dccp_recvmsg,
 	.backlog_rcv	   = dccp_v6_do_rcv,
-	.hash		   = dccp_v6_hash,
+	.hash		   = inet_hash,
 	.unhash		   = inet_unhash,
 	.accept		   = inet_csk_accept,
 	.get_port	   = inet_csk_get_port,
diff --git a/net/dccp/minisocks.c b/net/dccp/minisocks.c
index b50dc436db1f..5f566663e47f 100644
--- a/net/dccp/minisocks.c
+++ b/net/dccp/minisocks.c
@@ -27,28 +27,16 @@
 
 struct inet_timewait_death_row dccp_death_row = {
 	.sysctl_max_tw_buckets = NR_FILE * 2,
-	.period		= DCCP_TIMEWAIT_LEN / INET_TWDR_TWKILL_SLOTS,
-	.death_lock	= __SPIN_LOCK_UNLOCKED(dccp_death_row.death_lock),
 	.hashinfo	= &dccp_hashinfo,
-	.tw_timer	= TIMER_INITIALIZER(inet_twdr_hangman, 0,
-					    (unsigned long)&dccp_death_row),
-	.twkill_work	= __WORK_INITIALIZER(dccp_death_row.twkill_work,
-					     inet_twdr_twkill_work),
-/* Short-time timewait calendar */
-
-	.twcal_hand	= -1,
-	.twcal_timer	= TIMER_INITIALIZER(inet_twdr_twcal_tick, 0,
-					    (unsigned long)&dccp_death_row),
 };
 
 EXPORT_SYMBOL_GPL(dccp_death_row);
 
 void dccp_time_wait(struct sock *sk, int state, int timeo)
 {
-	struct inet_timewait_sock *tw = NULL;
+	struct inet_timewait_sock *tw;
 
-	if (dccp_death_row.tw_count < dccp_death_row.sysctl_max_tw_buckets)
-		tw = inet_twsk_alloc(sk, state);
+	tw = inet_twsk_alloc(sk, &dccp_death_row, state);
 
 	if (tw != NULL) {
 		const struct inet_connection_sock *icsk = inet_csk(sk);
@@ -71,8 +59,7 @@ void dccp_time_wait(struct sock *sk, int state, int timeo)
 		if (state == DCCP_TIME_WAIT)
 			timeo = DCCP_TIMEWAIT_LEN;
 
-		inet_twsk_schedule(tw, &dccp_death_row, timeo,
-				   DCCP_TIMEWAIT_LEN);
+		inet_twsk_schedule(tw, timeo);
 		inet_twsk_put(tw);
 	} else {
 		/* Sorry, if we're out of memory, just CLOSE this
@@ -152,8 +139,7 @@ EXPORT_SYMBOL_GPL(dccp_create_openreq_child);
  * as an request_sock.
  */
 struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
-			    struct request_sock *req,
-			    struct request_sock **prev)
+			    struct request_sock *req)
 {
 	struct sock *child = NULL;
 	struct dccp_request_sock *dreq = dccp_rsk(req);
@@ -200,7 +186,7 @@ struct sock *dccp_check_req(struct sock *sk, struct sk_buff *skb,
 	if (child == NULL)
 		goto listen_overflow;
 
-	inet_csk_reqsk_queue_unlink(sk, req, prev);
+	inet_csk_reqsk_queue_unlink(sk, req);
 	inet_csk_reqsk_queue_removed(sk, req);
 	inet_csk_reqsk_queue_add(sk, req, child);
 out:
@@ -212,7 +198,7 @@ drop:
 	if (dccp_hdr(skb)->dccph_type != DCCP_PKT_RESET)
 		req->rsk_ops->send_reset(sk, skb);
 
-	inet_csk_reqsk_queue_drop(sk, req, prev);
+	inet_csk_reqsk_queue_drop(sk, req);
 	goto out;
 }
 
diff --git a/net/dccp/probe.c b/net/dccp/probe.c
index 595ddf0459db..d8346d0eadeb 100644
--- a/net/dccp/probe.c
+++ b/net/dccp/probe.c
@@ -72,8 +72,7 @@ static void printl(const char *fmt, ...)
 	wake_up(&dccpw.wait);
 }
 
-static int jdccp_sendmsg(struct kiocb *iocb, struct sock *sk,
-			 struct msghdr *msg, size_t size)
+static int jdccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t size)
 {
 	const struct inet_sock *inet = inet_sk(sk);
 	struct ccid3_hc_tx_sock *hc = NULL;
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index e171b780b499..52a94016526d 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -741,8 +741,7 @@ static int dccp_msghdr_parse(struct msghdr *msg, struct sk_buff *skb)
 	return 0;
 }
 
-int dccp_sendmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-		 size_t len)
+int dccp_sendmsg(struct sock *sk, struct msghdr *msg, size_t len)
 {
 	const struct dccp_sock *dp = dccp_sk(sk);
 	const int flags = msg->msg_flags;
@@ -806,8 +805,8 @@ out_discard:
 
 EXPORT_SYMBOL_GPL(dccp_sendmsg);
 
-int dccp_recvmsg(struct kiocb *iocb, struct sock *sk, struct msghdr *msg,
-		 size_t len, int nonblock, int flags, int *addr_len)
+int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
+		 int flags, int *addr_len)
 {
 	const struct dccp_hdr *dh;
 	long timeo;
diff --git a/net/dccp/timer.c b/net/dccp/timer.c
index 1cd46a345cb0..3ef7acef3ce8 100644
--- a/net/dccp/timer.c
+++ b/net/dccp/timer.c
@@ -161,33 +161,11 @@ out:
 	sock_put(sk);
 }
 
-/*
- *	Timer for listening sockets
- */
-static void dccp_response_timer(struct sock *sk)
-{
-	inet_csk_reqsk_queue_prune(sk, TCP_SYNQ_INTERVAL, DCCP_TIMEOUT_INIT,
-				   DCCP_RTO_MAX);
-}
-
 static void dccp_keepalive_timer(unsigned long data)
 {
 	struct sock *sk = (struct sock *)data;
 
-	/* Only process if socket is not in use. */
-	bh_lock_sock(sk);
-	if (sock_owned_by_user(sk)) {
-		/* Try again later. */
-		inet_csk_reset_keepalive_timer(sk, HZ / 20);
-		goto out;
-	}
-
-	if (sk->sk_state == DCCP_LISTEN) {
-		dccp_response_timer(sk);
-		goto out;
-	}
-out:
-	bh_unlock_sock(sk);
+	pr_err("dccp should not use a keepalive timer !\n");
 	sock_put(sk);
 }