Merge remote-tracking branch 'lsk/v3.10/topic/configs' into linux-linaro-lsk

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

diff --git a/net/ipv6/route.c b/net/ipv6/route.c
index 3fde3e9778621aee2af44675a8a988dd7a96bdfd..b2614b22622baa266ad801a065d9e88698fd9df6 100644 (file)
--- a/net/ipv6/route.c
+++ b/net/ipv6/route.c
@@ -1236,7 +1236,7 @@ static unsigned int ip6_mtu(const struct dst_entry *dst)
        unsigned int mtu = dst_metric_raw(dst, RTAX_MTU);
 
        if (mtu)
-               return mtu;
+               goto out;
 
        mtu = IPV6_MIN_MTU;
 
@@ -1246,7 +1246,8 @@ static unsigned int ip6_mtu(const struct dst_entry *dst)
                mtu = idev->cnf.mtu6;
        rcu_read_unlock();
 
-       return mtu;
+out:
+       return min_t(unsigned int, mtu, IP6_MAX_MTU);
 }
 
 static struct dst_entry *icmp6_dst_gc_list;