diff --git a/net/sctp/socket.c b/net/sctp/socket.c
index 007e8ba..efa2bc3 100644
--- a/net/sctp/socket.c
+++ b/net/sctp/socket.c
@@ -6189,6 +6189,16 @@
 	goto out;
 }
 
+void sctp_data_ready(struct sock *sk, int len)
+{
+	read_lock_bh(&sk->sk_callback_lock);
+	if (sk_has_sleeper(sk))
+		wake_up_interruptible_sync_poll(sk->sk_sleep, POLLIN |
+						POLLRDNORM | POLLRDBAND);
+	sk_wake_async(sk, SOCK_WAKE_WAITD, POLL_IN);
+	read_unlock_bh(&sk->sk_callback_lock);
+}
+
 /* If socket sndbuf has changed, wake up all per association waiters.  */
 void sctp_write_space(struct sock *sk)
 {