Merge branch 'trivial' of git://git.kernel.org/pub/scm/linux/kernel/git/mmarek/kbuild

[firefly-linux-kernel-4.4.55.git] / net / ipv6 / udp.c

diff --git a/net/ipv6/udp.c b/net/ipv6/udp.c
index 051ad481973fb9879adb57172d8c5197e851a55a..99d0077b56b86f088a4a2fd2819a7b03e0eabd49 100644 (file)
--- a/net/ipv6/udp.c
+++ b/net/ipv6/udp.c
@@ -48,6 +48,7 @@
 
 #include <linux/proc_fs.h>
 #include <linux/seq_file.h>
+#include <trace/events/skb.h>
 #include "udp_impl.h"
 
 int ipv6_rcv_saddr_equal(const struct sock *sk, const struct sock *sk2)
@@ -385,15 +386,16 @@ try_again:
 
        if (skb_csum_unnecessary(skb))
                err = skb_copy_datagram_iovec(skb, sizeof(struct udphdr),
-                                             msg->msg_iov, copied       );
+                                             msg->msg_iov, copied);
        else {
                err = skb_copy_and_csum_datagram_iovec(skb, sizeof(struct udphdr), msg->msg_iov);
                if (err == -EINVAL)
                        goto csum_copy_err;
        }
-       if (err)
+       if (unlikely(err)) {
+               trace_kfree_skb(skb, udpv6_recvmsg);
                goto out_free;
-
+       }
        if (!peeked) {
                if (is_udp4)
                        UDP_INC_STATS_USER(sock_net(sk),
@@ -481,6 +483,8 @@ void __udp6_lib_err(struct sk_buff *skb, struct inet6_skb_parm *opt,
 
        if (type == ICMPV6_PKT_TOOBIG)
                ip6_sk_update_pmtu(skb, sk, info);
+       if (type == NDISC_REDIRECT)
+               ip6_sk_redirect(skb, sk);
 
        np = inet6_sk(sk);