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vlan: cleanup the usage of vlan_dev_priv(dev)

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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: Wang Sheng-Hui <shhuiw@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Wang Sheng-Hui 2013-08-03 16:54:50 +08:00 committed by David S. Miller
parent 9e9402eb45
commit 0c0667a854
2 changed files with 10 additions and 8 deletions
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12
net/8021q/vlan.c
View File

@ -210,6 +210,7 @@ out_vid_del:
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);

6
net/8021q/vlan_dev.c
View File

@ -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;