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>
mariux64 · Nov 30, 2016 · 8f679ed · 8f679ed
1 parent fec668d
commit 8f679ed
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diff --git 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
@@ -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)