summaryrefslogtreecommitdiff
path: root/net/bridge/br_device.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/bridge/br_device.c')
-rw-r--r--net/bridge/br_device.c9
1 files changed, 8 insertions, 1 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c
index d9449df7cad5..9b58d70b0e7d 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;
}