PCI Hotplug: pciehp: use generic function to find ext capability
[safe/jmp/linux-2.6] / net / 8021q / vlanproc.c
index a8fc0de..a0ec479 100644 (file)
@@ -33,6 +33,7 @@
 #include <linux/fs.h>
 #include <linux/netdevice.h>
 #include <linux/if_vlan.h>
+#include <net/net_namespace.h>
 #include "vlanproc.h"
 #include "vlan.h"
 
@@ -51,7 +52,7 @@ static int vlandev_seq_show(struct seq_file *seq, void *v);
 
 
 /*
- *     Names of the proc directory entries 
+ *     Names of the proc directory entries
  */
 
 static const char name_root[]   = "vlan";
@@ -66,10 +67,10 @@ static const char name_conf[]        = "config";
  */
 
 /*
- *     Generic /proc/net/vlan/<file> file and inode operations 
+ *     Generic /proc/net/vlan/<file> file and inode operations
  */
 
-static struct seq_operations vlan_seq_ops = {
+static const struct seq_operations vlan_seq_ops = {
        .start = vlan_seq_start,
        .next = vlan_seq_next,
        .stop = vlan_seq_stop,
@@ -81,7 +82,7 @@ static int vlan_seq_open(struct inode *inode, struct file *file)
        return seq_open(file, &vlan_seq_ops);
 }
 
-static struct file_operations vlan_fops = {
+static const struct file_operations vlan_fops = {
        .owner   = THIS_MODULE,
        .open    = vlan_seq_open,
        .read    = seq_read,
@@ -98,7 +99,7 @@ static int vlandev_seq_open(struct inode *inode, struct file *file)
        return single_open(file, vlandev_seq_show, PDE(inode)->data);
 }
 
-static struct file_operations vlandev_fops = {
+static const struct file_operations vlandev_fops = {
        .owner = THIS_MODULE,
        .open    = vlandev_seq_open,
        .read    = seq_read,
@@ -111,23 +112,23 @@ static struct file_operations vlandev_fops = {
  */
 
 /*
- *     /proc/net/vlan 
+ *     /proc/net/vlan
  */
 
 static struct proc_dir_entry *proc_vlan_dir;
 
 /*
- *     /proc/net/vlan/config 
+ *     /proc/net/vlan/config
  */
 
 static struct proc_dir_entry *proc_vlan_conf;
 
 /* Strings */
 static const char *vlan_name_type_str[VLAN_NAME_TYPE_HIGHEST] = {
-    [VLAN_NAME_TYPE_RAW_PLUS_VID]       = "VLAN_NAME_TYPE_RAW_PLUS_VID",
-    [VLAN_NAME_TYPE_PLUS_VID_NO_PAD]   = "VLAN_NAME_TYPE_PLUS_VID_NO_PAD",
-    [VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD]= "VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD",
-    [VLAN_NAME_TYPE_PLUS_VID]          = "VLAN_NAME_TYPE_PLUS_VID",
+    [VLAN_NAME_TYPE_RAW_PLUS_VID]        = "VLAN_NAME_TYPE_RAW_PLUS_VID",
+    [VLAN_NAME_TYPE_PLUS_VID_NO_PAD]    = "VLAN_NAME_TYPE_PLUS_VID_NO_PAD",
+    [VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD] = "VLAN_NAME_TYPE_RAW_PLUS_VID_NO_PAD",
+    [VLAN_NAME_TYPE_PLUS_VID]           = "VLAN_NAME_TYPE_PLUS_VID",
 };
 /*
  *     Interface functions
@@ -143,7 +144,7 @@ void vlan_proc_cleanup(void)
                remove_proc_entry(name_conf, proc_vlan_dir);
 
        if (proc_vlan_dir)
-               proc_net_remove(name_root);
+               proc_net_remove(&init_net, name_root);
 
        /* Dynamically added entries should be cleaned up as their vlan_device
         * is removed, so we should not have to take care of it here...
@@ -156,16 +157,19 @@ void vlan_proc_cleanup(void)
 
 int __init vlan_proc_init(void)
 {
-       proc_vlan_dir = proc_mkdir(name_root, proc_net);
-       if (proc_vlan_dir) {
-               proc_vlan_conf = create_proc_entry(name_conf,
-                                                  S_IFREG|S_IRUSR|S_IWUSR,
-                                                  proc_vlan_dir);
-               if (proc_vlan_conf) {
-                       proc_vlan_conf->proc_fops = &vlan_fops;
-                       return 0;
-               }
-       }
+       proc_vlan_dir = proc_mkdir(name_root, init_net.proc_net);
+       if (!proc_vlan_dir)
+               goto err;
+
+       proc_vlan_conf = create_proc_entry(name_conf, S_IFREG|S_IRUSR|S_IWUSR,
+                                          proc_vlan_dir);
+       if (!proc_vlan_conf)
+               goto err;
+       proc_vlan_conf->proc_fops = &vlan_fops;
+       return 0;
+
+err:
+       pr_err("%s: can't create entry in proc filesystem!\n", __FUNCTION__);
        vlan_proc_cleanup();
        return -ENOBUFS;
 }
@@ -174,16 +178,9 @@ int __init vlan_proc_init(void)
  *     Add directory entry for VLAN device.
  */
 
-int vlan_proc_add_dev (struct net_device *vlandev)
+int vlan_proc_add_dev(struct net_device *vlandev)
 {
-       struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
-
-       if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
-               printk(KERN_ERR
-                      "ERROR:  vlan_proc_add, device -:%s:- is NOT a VLAN\n",
-                      vlandev->name);
-               return -EINVAL;
-       }
+       struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
 
        dev_info->dent = create_proc_entry(vlandev->name,
                                           S_IFREG|S_IRUSR|S_IWUSR,
@@ -193,11 +190,6 @@ int vlan_proc_add_dev (struct net_device *vlandev)
 
        dev_info->dent->proc_fops = &vlandev_fops;
        dev_info->dent->data = vlandev;
-
-#ifdef VLAN_DEBUG
-       printk(KERN_ERR "vlan_proc_add, device -:%s:- being added.\n",
-              vlandev->name);
-#endif
        return 0;
 }
 
@@ -206,28 +198,12 @@ int vlan_proc_add_dev (struct net_device *vlandev)
  */
 int vlan_proc_rem_dev(struct net_device *vlandev)
 {
-       if (!vlandev) {
-               printk(VLAN_ERR "%s: invalid argument: %p\n",
-                       __FUNCTION__, vlandev);
-               return -EINVAL;
-       }
-
-       if (!(vlandev->priv_flags & IFF_802_1Q_VLAN)) {
-               printk(VLAN_DBG "%s: invalid argument, device: %s is not a VLAN device, priv_flags: 0x%4hX.\n",
-                       __FUNCTION__, vlandev->name, vlandev->priv_flags);
-               return -EINVAL;
-       }
-
-#ifdef VLAN_DEBUG
-       printk(VLAN_DBG "%s: dev: %p\n", __FUNCTION__, vlandev);
-#endif
-
        /** NOTE:  This will consume the memory pointed to by dent, it seems. */
-       if (VLAN_DEV_INFO(vlandev)->dent) {
-               remove_proc_entry(VLAN_DEV_INFO(vlandev)->dent->name, proc_vlan_dir);
-               VLAN_DEV_INFO(vlandev)->dent = NULL;
+       if (vlan_dev_info(vlandev)->dent) {
+               remove_proc_entry(vlan_dev_info(vlandev)->dent->name,
+                                 proc_vlan_dir);
+               vlan_dev_info(vlandev)->dent = NULL;
        }
-
        return 0;
 }
 
@@ -237,17 +213,14 @@ int vlan_proc_rem_dev(struct net_device *vlandev)
  * The following few functions build the content of /proc/net/vlan/config
  */
 
-/* starting at dev, find a VLAN device */
-static struct net_device *vlan_skip(struct net_device *dev) 
+static inline int is_vlan_dev(struct net_device *dev)
 {
-       while (dev && !(dev->priv_flags & IFF_802_1Q_VLAN)) 
-               dev = dev->next;
-
-       return dev;
+       return dev->priv_flags & IFF_802_1Q_VLAN;
 }
 
-/* start read of /proc/net/vlan/config */ 
+/* start read of /proc/net/vlan/config */
 static void *vlan_seq_start(struct seq_file *seq, loff_t *pos)
+       __acquires(dev_base_lock)
 {
        struct net_device *dev;
        loff_t i = 1;
@@ -256,23 +229,40 @@ static void *vlan_seq_start(struct seq_file *seq, loff_t *pos)
 
        if (*pos == 0)
                return SEQ_START_TOKEN;
-       
-       for (dev = vlan_skip(dev_base); dev && i < *pos; 
-            dev = vlan_skip(dev->next), ++i);
-               
-       return  (i == *pos) ? dev : NULL;
-} 
+
+       for_each_netdev(&init_net, dev) {
+               if (!is_vlan_dev(dev))
+                       continue;
+
+               if (i++ == *pos)
+                       return dev;
+       }
+
+       return  NULL;
+}
 
 static void *vlan_seq_next(struct seq_file *seq, void *v, loff_t *pos)
 {
+       struct net_device *dev;
+
        ++*pos;
 
-       return vlan_skip((v == SEQ_START_TOKEN)  
-                           ? dev_base 
-                           : ((struct net_device *)v)->next);
+       dev = (struct net_device *)v;
+       if (v == SEQ_START_TOKEN)
+               dev = net_device_entry(&init_net.dev_base_head);
+
+       for_each_netdev_continue(&init_net, dev) {
+               if (!is_vlan_dev(dev))
+                       continue;
+
+               return dev;
+       }
+
+       return NULL;
 }
 
 static void vlan_seq_stop(struct seq_file *seq, void *v)
+       __releases(dev_base_lock)
 {
        read_unlock(&dev_base_lock);
 }
@@ -287,13 +277,13 @@ static int vlan_seq_show(struct seq_file *seq, void *v)
                if (vlan_name_type < ARRAY_SIZE(vlan_name_type_str))
                    nmtype =  vlan_name_type_str[vlan_name_type];
 
-               seq_printf(seq, "Name-Type: %s\n", 
-                          nmtype ? nmtype :  "UNKNOWN" );
+               seq_printf(seq, "Name-Type: %s\n",
+                          nmtype ? nmtype :  "UNKNOWN");
        } else {
                const struct net_device *vlandev = v;
-               const struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
+               const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
 
-               seq_printf(seq, "%-15s| %d  | %s\n",  vlandev->name,  
+               seq_printf(seq, "%-15s| %d  | %s\n",  vlandev->name,
                           dev_info->vlan_id,    dev_info->real_dev->name);
        }
        return 0;
@@ -302,20 +292,18 @@ static int vlan_seq_show(struct seq_file *seq, void *v)
 static int vlandev_seq_show(struct seq_file *seq, void *offset)
 {
        struct net_device *vlandev = (struct net_device *) seq->private;
-       const struct vlan_dev_info *dev_info = VLAN_DEV_INFO(vlandev);
-       struct net_device_stats *stats;
+       const struct vlan_dev_info *dev_info = vlan_dev_info(vlandev);
+       struct net_device_stats *stats = &vlandev->stats;
        static const char fmt[] = "%30s %12lu\n";
        int i;
 
-       if ((vlandev == NULL) || (!(vlandev->priv_flags & IFF_802_1Q_VLAN)))
+       if (!(vlandev->priv_flags & IFF_802_1Q_VLAN))
                return 0;
 
-       seq_printf(seq, "%s  VID: %d     REORDER_HDR: %i  dev->priv_flags: %hx\n",
-                      vlandev->name, dev_info->vlan_id,
-                      (int)(dev_info->flags & 1), vlandev->priv_flags);
-
-
-       stats = vlan_dev_get_stats(vlandev);
+       seq_printf(seq,
+                  "%s  VID: %d  REORDER_HDR: %i  dev->priv_flags: %hx\n",
+                  vlandev->name, dev_info->vlan_id,
+                  (int)(dev_info->flags & 1), vlandev->priv_flags);
 
        seq_printf(seq, fmt, "total frames received", stats->rx_packets);
        seq_printf(seq, fmt, "total bytes received", stats->rx_bytes);
@@ -323,29 +311,29 @@ static int vlandev_seq_show(struct seq_file *seq, void *offset)
        seq_puts(seq, "\n");
        seq_printf(seq, fmt, "total frames transmitted", stats->tx_packets);
        seq_printf(seq, fmt, "total bytes transmitted", stats->tx_bytes);
-       seq_printf(seq, fmt, "total headroom inc", 
+       seq_printf(seq, fmt, "total headroom inc",
                   dev_info->cnt_inc_headroom_on_tx);
-       seq_printf(seq, fmt, "total encap on xmit", 
+       seq_printf(seq, fmt, "total encap on xmit",
                   dev_info->cnt_encap_on_xmit);
        seq_printf(seq, "Device: %s", dev_info->real_dev->name);
        /* now show all PRIORITY mappings relating to this VLAN */
-       seq_printf(seq, 
-                      "\nINGRESS priority mappings: 0:%lu  1:%lu  2:%lu  3:%lu  4:%lu  5:%lu  6:%lu 7:%lu\n",
-                      dev_info->ingress_priority_map[0],
-                      dev_info->ingress_priority_map[1],
-                      dev_info->ingress_priority_map[2],
-                      dev_info->ingress_priority_map[3],
-                      dev_info->ingress_priority_map[4],
-                      dev_info->ingress_priority_map[5],
-                      dev_info->ingress_priority_map[6],
-                      dev_info->ingress_priority_map[7]);
+       seq_printf(seq, "\nINGRESS priority mappings: "
+                       "0:%u  1:%u  2:%u  3:%u  4:%u  5:%u  6:%u 7:%u\n",
+                  dev_info->ingress_priority_map[0],
+                  dev_info->ingress_priority_map[1],
+                  dev_info->ingress_priority_map[2],
+                  dev_info->ingress_priority_map[3],
+                  dev_info->ingress_priority_map[4],
+                  dev_info->ingress_priority_map[5],
+                  dev_info->ingress_priority_map[6],
+                  dev_info->ingress_priority_map[7]);
 
        seq_printf(seq, "EGRESSS priority Mappings: ");
        for (i = 0; i < 16; i++) {
                const struct vlan_priority_tci_mapping *mp
                        = dev_info->egress_priority_map[i];
                while (mp) {
-                       seq_printf(seq, "%lu:%hu ",
+                       seq_printf(seq, "%u:%hu ",
                                   mp->priority, ((mp->vlan_qos >> 13) & 0x7));
                        mp = mp->next;
                }