[VLAN]: Move device setup to vlan_dev.c

Move device setup to vlan_dev.c and make all the VLAN device methods
static.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 86 insertions, 14 deletions

diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 9543e9182796..51ce4217c039 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -47,7 +47,7 @@
  *
  * TODO:  This needs a checkup, I'm ignorant here. --BLG
  */
-int vlan_dev_rebuild_header(struct sk_buff *skb)
+static int vlan_dev_rebuild_header(struct sk_buff *skb)
 {
         struct net_device *dev = skb->dev;
         struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
@@ -342,9 +342,10 @@ static inline unsigned short vlan_dev_get_egress_qos_mask(struct net_device* dev
  *  This is called when the SKB is moving down the stack towards the
  *  physical devices.
  */
-int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
-                         unsigned short type,
-                         const void *daddr, const void *saddr, unsigned len)
+static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
+                                unsigned short type,
+                                const void *daddr, const void *saddr,
+                                unsigned int len)
 {
         struct vlan_hdr *vhdr;
         unsigned short veth_TCI = 0;
@@ -451,7 +452,7 @@ int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
         return rc;
 }
 
-int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 {
         struct net_device_stats *stats = &dev->stats;
         struct vlan_ethhdr *veth = (struct vlan_ethhdr *)(skb->data);
@@ -512,7 +513,8 @@ int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
         return 0;
 }
 
-int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
+static int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb,
+                                            struct net_device *dev)
 {
         struct net_device_stats *stats = &dev->stats;
         unsigned short veth_TCI;
@@ -536,7 +538,7 @@ int vlan_dev_hwaccel_hard_start_xmit(struct sk_buff *skb, struct net_device *dev
         return 0;
 }
 
-int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
+static int vlan_dev_change_mtu(struct net_device *dev, int new_mtu)
 {
         /* TODO: gotta make sure the underlying layer can handle it,
          * maybe an IFF_VLAN_CAPABLE flag for devices?
@@ -626,7 +628,7 @@ void vlan_dev_get_vid(const struct net_device *dev, unsigned short *result)
         *result = VLAN_DEV_INFO(dev)->vlan_id;
 }
 
-int vlan_dev_open(struct net_device *dev)
+static int vlan_dev_open(struct net_device *dev)
 {
         struct vlan_dev_info *vlan = VLAN_DEV_INFO(dev);
         struct net_device *real_dev = vlan->real_dev;
@@ -650,7 +652,7 @@ int vlan_dev_open(struct net_device *dev)
         return 0;
 }
 
-int vlan_dev_stop(struct net_device *dev)
+static int vlan_dev_stop(struct net_device *dev)
 {
         struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
 
@@ -666,7 +668,7 @@ int vlan_dev_stop(struct net_device *dev)
         return 0;
 }
 
-int vlan_set_mac_address(struct net_device *dev, void *p)
+static int vlan_dev_set_mac_address(struct net_device *dev, void *p)
 {
         struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
         struct sockaddr *addr = p;
@@ -692,7 +694,7 @@ out:
         return 0;
 }
 
-int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
+static int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 {
         struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
         struct ifreq ifrr;
@@ -716,7 +718,7 @@ int vlan_dev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
         return err;
 }
 
-void vlan_change_rx_flags(struct net_device *dev, int change)
+static void vlan_dev_change_rx_flags(struct net_device *dev, int change)
 {
         struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
 
@@ -726,8 +728,78 @@ void vlan_change_rx_flags(struct net_device *dev, int change)
                 dev_set_promiscuity(real_dev, dev->flags & IFF_PROMISC ? 1 : -1);
 }
 
-/** Taken from Gleb + Lennert's VLAN code, and modified... */
-void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
+static void vlan_dev_set_multicast_list(struct net_device *vlan_dev)
 {
         dev_mc_sync(VLAN_DEV_INFO(vlan_dev)->real_dev, vlan_dev);
 }
+
+/*
+ * vlan network devices have devices nesting below it, and are a special
+ * "super class" of normal network devices; split their locks off into a
+ * separate class since they always nest.
+ */
+static struct lock_class_key vlan_netdev_xmit_lock_key;
+
+static const struct header_ops vlan_header_ops = {
+        .create  = vlan_dev_hard_header,
+        .rebuild = vlan_dev_rebuild_header,
+        .parse   = eth_header_parse,
+};
+
+static int vlan_dev_init(struct net_device *dev)
+{
+        struct net_device *real_dev = VLAN_DEV_INFO(dev)->real_dev;
+        int subclass = 0;
+
+        /* IFF_BROADCAST|IFF_MULTICAST; ??? */
+        dev->flags  = real_dev->flags & ~IFF_UP;
+        dev->iflink = real_dev->ifindex;
+        dev->state  = (real_dev->state & ((1<<__LINK_STATE_NOCARRIER) |
+                                          (1<<__LINK_STATE_DORMANT))) |
+                      (1<<__LINK_STATE_PRESENT);
+
+        /* ipv6 shared card related stuff */
+        dev->dev_id = real_dev->dev_id;
+
+        if (is_zero_ether_addr(dev->dev_addr))
+                memcpy(dev->dev_addr, real_dev->dev_addr, dev->addr_len);
+        if (is_zero_ether_addr(dev->broadcast))
+                memcpy(dev->broadcast, real_dev->broadcast, dev->addr_len);
+
+        if (real_dev->features & NETIF_F_HW_VLAN_TX) {
+                dev->header_ops      = real_dev->header_ops;
+                dev->hard_header_len = real_dev->hard_header_len;
+                dev->hard_start_xmit = vlan_dev_hwaccel_hard_start_xmit;
+        } else {
+                dev->header_ops      = &vlan_header_ops;
+                dev->hard_header_len = real_dev->hard_header_len + VLAN_HLEN;
+                dev->hard_start_xmit = vlan_dev_hard_start_xmit;
+        }
+
+        if (real_dev->priv_flags & IFF_802_1Q_VLAN)
+                subclass = 1;
+
+        lockdep_set_class_and_subclass(&dev->_xmit_lock,
+                                &vlan_netdev_xmit_lock_key, subclass);
+        return 0;
+}
+
+void vlan_setup(struct net_device *dev)
+{
+        ether_setup(dev);
+
+        dev->priv_flags         |= IFF_802_1Q_VLAN;
+        dev->tx_queue_len       = 0;
+
+        dev->change_mtu         = vlan_dev_change_mtu;
+        dev->init               = vlan_dev_init;
+        dev->open               = vlan_dev_open;
+        dev->stop               = vlan_dev_stop;
+        dev->set_mac_address    = vlan_dev_set_mac_address;
+        dev->set_multicast_list = vlan_dev_set_multicast_list;
+        dev->change_rx_flags    = vlan_dev_change_rx_flags;
+        dev->do_ioctl           = vlan_dev_ioctl;
+        dev->destructor         = free_netdev;
+
+        memset(dev->broadcast, 0, ETH_ALEN);
+}