driver: ipvlan: Remove useless member mtu_adj of struct ipvl_dev

The mtu_adj is initialized to zero when alloc mem, there is no any
assignment to mtu_adj. It is only used in ipvlan_adjust_mtu as one
right value.
So it is useless member of struct ipvl_dev, then remove it.

Signed-off-by: Gao Feng <fgao@ikuai8.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ipvlan/ipvlan.h b/drivers/net/ipvlan/ipvlan.h
index 7e0732f..05a62d2 100644 (file)
--- a/drivers/net/ipvlan/ipvlan.h
+++ b/drivers/net/ipvlan/ipvlan.h
@@ -73,7 +73,6 @@ struct ipvl_dev {
        DECLARE_BITMAP(mac_filters, IPVLAN_MAC_FILTER_SIZE);
        netdev_features_t       sfeatures;
        u32                     msg_enable;
-       u16                     mtu_adj;
 };
 
 struct ipvl_addr {

diff --git a/drivers/net/ipvlan/ipvlan_main.c b/drivers/net/ipvlan/ipvlan_main.c
index ab90b22..c6aa667 100644 (file)
--- a/drivers/net/ipvlan/ipvlan_main.c
+++ b/drivers/net/ipvlan/ipvlan_main.c
@@ -32,7 +32,7 @@ static const struct l3mdev_ops ipvl_l3mdev_ops = {
 
 static void ipvlan_adjust_mtu(struct ipvl_dev *ipvlan, struct net_device *dev)
 {
-       ipvlan->dev->mtu = dev->mtu - ipvlan->mtu_adj;
+       ipvlan->dev->mtu = dev->mtu;
 }
 
 static int ipvlan_register_nf_hook(void)