4 files changed, 11 insertions, 13 deletions

diff --git a/net/dccp/dccp.h b/net/dccp/dccp.h
index 671c377f0889..7dfc00c9fb32 100644
--- a/net/dccp/dccp.h
+++ b/net/dccp/dccp.h
@@ -293,8 +293,8 @@ int dccp_setsockopt(struct sock *sk, int level, int optname,
 		    sockptr_t optval, unsigned int optlen);
 int dccp_ioctl(struct sock *sk, int cmd, unsigned long arg);
 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);
+int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int flags,
+		 int *addr_len);
 void dccp_shutdown(struct sock *sk, int how);
 int inet_dccp_listen(struct socket *sock, int backlog);
 __poll_t dccp_poll(struct file *file, struct socket *sock,
diff --git a/net/dccp/ipv4.c b/net/dccp/ipv4.c
index 0ea29270d7e5..da6e3b20cd75 100644
--- a/net/dccp/ipv4.c
+++ b/net/dccp/ipv4.c
@@ -76,9 +76,8 @@ int dccp_v4_connect(struct sock *sk, struct sockaddr *uaddr, int addr_len)
 	orig_dport = usin->sin_port;
 	fl4 = &inet->cork.fl.u.ip4;
 	rt = ip_route_connect(fl4, nexthop, inet->inet_saddr,
-			      RT_CONN_FLAGS(sk), sk->sk_bound_dev_if,
-			      IPPROTO_DCCP,
-			      orig_sport, orig_dport, sk);
+			      sk->sk_bound_dev_if, IPPROTO_DCCP, orig_sport,
+			      orig_dport, sk);
 	if (IS_ERR(rt))
 		return PTR_ERR(rt);
 
@@ -629,7 +628,7 @@ int dccp_v4_conn_request(struct sock *sk, struct sk_buff *skb)
 	sk_daddr_set(req_to_sk(req), ip_hdr(skb)->saddr);
 	ireq->ir_mark = inet_request_mark(sk, skb);
 	ireq->ireq_family = AF_INET;
-	ireq->ir_iif = sk->sk_bound_dev_if;
+	ireq->ir_iif = READ_ONCE(sk->sk_bound_dev_if);
 
 	/*
 	 * Step 3: Process LISTEN state
diff --git a/net/dccp/ipv6.c b/net/dccp/ipv6.c
index fa663518fa0e..fd44638ec16b 100644
--- a/net/dccp/ipv6.c
+++ b/net/dccp/ipv6.c
@@ -374,10 +374,10 @@ static int dccp_v6_conn_request(struct sock *sk, struct sk_buff *skb)
 		refcount_inc(&skb->users);
 		ireq->pktopts = skb;
 	}
-	ireq->ir_iif = sk->sk_bound_dev_if;
+	ireq->ir_iif = READ_ONCE(sk->sk_bound_dev_if);
 
 	/* So that link locals have meaning */
-	if (!sk->sk_bound_dev_if &&
+	if (!ireq->ir_iif &&
 	    ipv6_addr_type(&ireq->ir_v6_rmt_addr) & IPV6_ADDR_LINKLOCAL)
 		ireq->ir_iif = inet6_iif(skb);
 
@@ -892,7 +892,7 @@ static int dccp_v6_connect(struct sock *sk, struct sockaddr *uaddr,
 
 		SOCK_DEBUG(sk, "connect: ipv4 mapped\n");
 
-		if (__ipv6_only_sock(sk))
+		if (ipv6_only_sock(sk))
 			return -ENETUNREACH;
 
 		sin.sin_family = AF_INET;
diff --git a/net/dccp/proto.c b/net/dccp/proto.c
index a976b4d29892..eb8e128e43e8 100644
--- a/net/dccp/proto.c
+++ b/net/dccp/proto.c
@@ -791,8 +791,8 @@ out_discard:
 
 EXPORT_SYMBOL_GPL(dccp_sendmsg);
 
-int dccp_recvmsg(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 flags,
+		 int *addr_len)
 {
 	const struct dccp_hdr *dh;
 	long timeo;
@@ -804,7 +804,7 @@ int dccp_recvmsg(struct sock *sk, struct msghdr *msg, size_t len, int nonblock,
 		goto out;
 	}
 
-	timeo = sock_rcvtimeo(sk, nonblock);
+	timeo = sock_rcvtimeo(sk, flags & MSG_DONTWAIT);
 
 	do {
 		struct sk_buff *skb = skb_peek(&sk->sk_receive_queue);
@@ -1110,7 +1110,6 @@ static int __init dccp_init(void)
 
 	BUILD_BUG_ON(sizeof(struct dccp_skb_cb) >
 		     sizeof_field(struct sk_buff, cb));
-	inet_hashinfo_init(&dccp_hashinfo);
 	rc = inet_hashinfo2_init_mod(&dccp_hashinfo);
 	if (rc)
 		goto out_fail;