X-Git-Url: https://err.no/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=net%2Fbridge%2Fbr_device.c;h=9b58d70b0e7d2a4a79129a2a7c769a7b70c3c5bc;hb=ad619800e4e034cad44299b2a22df9eebb043ac3;hp=d9449df7cad518d52d499b201d4e2cfd6ab4718f;hpb=8294fafdafc602ed11f401c44628fab8558c5cf5;p=linux-2.6

diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index d9449df7ca..9b58d70b0e 100644
--- a/net/bridge/br_device.c
+++ b/net/bridge/br_device.c
@@ -68,10 +68,17 @@ static int br_dev_stop(struct net_device *dev)
 
 static int br_change_mtu(struct net_device *dev, int new_mtu)
 {
-	if (new_mtu < 68 || new_mtu > br_min_mtu(netdev_priv(dev)))
+	struct net_bridge *br = netdev_priv(dev);
+	if (new_mtu < 68 || new_mtu > br_min_mtu(br))
 		return -EINVAL;
 
 	dev->mtu = new_mtu;
+
+#ifdef CONFIG_BRIDGE_NETFILTER
+	/* remember the MTU in the rtable for PMTU */
+	br->fake_rtable.u.dst.metrics[RTAX_MTU - 1] = new_mtu;
+#endif
+
 	return 0;
 }