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-rw-r--r--net/ieee80211/ieee80211_module.c9
1 files changed, 9 insertions, 0 deletions
diff --git a/net/ieee80211/ieee80211_module.c b/net/ieee80211/ieee80211_module.c
index 13b1e5fff7e4..2b14c2f3e21d 100644
--- a/net/ieee80211/ieee80211_module.c
+++ b/net/ieee80211/ieee80211_module.c
@@ -118,6 +118,14 @@ static void ieee80211_networks_initialize(struct ieee80211_device *ieee)
&ieee->network_free_list);
}
+static int ieee80211_change_mtu(struct net_device *dev, int new_mtu)
+{
+ if ((new_mtu < 68) || (new_mtu > IEEE80211_DATA_LEN))
+ return -EINVAL;
+ dev->mtu = new_mtu;
+ return 0;
+}
+
struct net_device *alloc_ieee80211(int sizeof_priv)
{
struct ieee80211_device *ieee;
@@ -133,6 +141,7 @@ struct net_device *alloc_ieee80211(int sizeof_priv)
}
ieee = netdev_priv(dev);
dev->hard_start_xmit = ieee80211_xmit;
+ dev->change_mtu = ieee80211_change_mtu;
ieee->dev = dev;