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Commit 0c0667a8 authored by Wang Sheng-Hui's avatar Wang Sheng-Hui Committed by David S. Miller
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vlan: cleanup the usage of vlan_dev_priv(dev) 



This patch cleanup 2 points for the usage of vlan_dev_priv(dev):
* In vlan_dev.c/vlan_dev_hard_header, we should use the var *vlan directly
  after grabing the pointer at the beginning with
        *vlan = vlan_dev_priv(dev);
  when we need to access the fields of *vlan.
* In vlan.c/register_vlan_device, add the var *vlan pointer
        struct vlan_dev_priv *vlan;
to cleanup the code to access the fields of vlan_dev_priv(new_dev).

Signed-off-by: default avatarWang Sheng-Hui <shhuiw@gmail.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9e9402eb

net/8021q/vlan.c

+7 −5
Original line number Diff line number Diff line
@@ -210,6 +210,7 @@ int register_vlan_dev(struct net_device *dev) 
static int register_vlan_device(struct net_device *real_dev, u16 vlan_id)

{

	struct net_device *new_dev;

	struct vlan_dev_priv *vlan;

	struct net *net = dev_net(real_dev);

	struct vlan_net *vn = net_generic(net, vlan_net_id);

	char name[IFNAMSIZ];
@@ -260,11 +261,12 @@ static int register_vlan_device(struct net_device *real_dev, u16 vlan_id) 
	new_dev->mtu = real_dev->mtu;

	new_dev->priv_flags |= (real_dev->priv_flags & IFF_UNICAST_FLT);



	vlan_dev_priv(new_dev)->vlan_proto = htons(ETH_P_8021Q);

	vlan_dev_priv(new_dev)->vlan_id = vlan_id;

	vlan_dev_priv(new_dev)->real_dev = real_dev;

	vlan_dev_priv(new_dev)->dent = NULL;

	vlan_dev_priv(new_dev)->flags = VLAN_FLAG_REORDER_HDR;

	vlan = vlan_dev_priv(new_dev);

	vlan->vlan_proto = htons(ETH_P_8021Q);

	vlan->vlan_id = vlan_id;

	vlan->real_dev = real_dev;

	vlan->dent = NULL;

	vlan->flags = VLAN_FLAG_REORDER_HDR;



	new_dev->rtnl_link_ops = &vlan_link_ops;

	err = register_vlan_dev(new_dev);

net/8021q/vlan_dev.c

+3 −3
Original line number Diff line number Diff line
@@ -107,10 +107,10 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, 
	u16 vlan_tci = 0;

	int rc;



	if (!(vlan_dev_priv(dev)->flags & VLAN_FLAG_REORDER_HDR)) {

	if (!(vlan->flags & VLAN_FLAG_REORDER_HDR)) {

		vhdr = (struct vlan_hdr *) skb_push(skb, VLAN_HLEN);



		vlan_tci = vlan_dev_priv(dev)->vlan_id;

		vlan_tci = vlan->vlan_id;

		vlan_tci |= vlan_dev_get_egress_qos_mask(dev, skb);

		vhdr->h_vlan_TCI = htons(vlan_tci);
@@ -133,7 +133,7 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev, 
		saddr = dev->dev_addr;



	/* Now make the underlying real hard header */

	dev = vlan_dev_priv(dev)->real_dev;

	dev = vlan->real_dev;

	rc = dev_hard_header(skb, dev, type, daddr, saddr, len + vhdrlen);

	if (rc > 0)

		rc += vhdrlen;