[VLAN]: Clean up debugging and printks

- use pr_* functions and common prefix for non-device related messages

- remove VLAN_ printk levels

- kill lots of useless debugging statements

- remove a few unnecessary printks like for double VID registration (already
  returns -EEXIST) and kill of a number of unnecessary checks in
  vlan_proc_{add,rem}_dev() that are already performed by the caller

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

4 files changed, 30 insertions, 138 deletions

diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c
index 8bc6385a06ee..6edd1919d183 100644
--- a/net/8021q/vlan.c
+++ b/net/8021q/vlan.c
@@ -80,16 +80,13 @@ static int __init vlan_proto_init(void)
 {
         int err;
 
-        printk(VLAN_INF "%s v%s %s\n",
-               vlan_fullname, vlan_version, vlan_copyright);
-        printk(VLAN_INF "All bugs added by %s\n",
-               vlan_buggyright);
+        pr_info("%s v%s %s\n", vlan_fullname, vlan_version, vlan_copyright);
+        pr_info("All bugs added by %s\n", vlan_buggyright);
 
         /* proc file system initialization */
         err = vlan_proc_init();
         if (err < 0) {
-                printk(KERN_ERR
-                       "%s: can't create entry in proc filesystem!\n",
+                pr_err("%s: can't create entry in proc filesystem!\n",
                        __FUNCTION__);
                 return err;
         }
@@ -233,10 +230,6 @@ static int unregister_vlan_dev(struct net_device *real_dev,
         struct vlan_group *grp;
         int i, ret;
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: VID: %i\n", __FUNCTION__, vlan_id);
-#endif
-
         /* sanity check */
         if (vlan_id >= VLAN_VID_MASK)
                 return -EINVAL;
@@ -329,23 +322,22 @@ static void vlan_transfer_operstate(const struct net_device *dev, struct net_dev
 
 int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id)
 {
+        char *name = real_dev->name;
+
         if (real_dev->features & NETIF_F_VLAN_CHALLENGED) {
-                printk(VLAN_DBG "%s: VLANs not supported on %s.\n",
-                        __FUNCTION__, real_dev->name);
+                pr_info("8021q: VLANs not supported on %s\n", name);
                 return -EOPNOTSUPP;
         }
 
         if ((real_dev->features & NETIF_F_HW_VLAN_RX) &&
             !real_dev->vlan_rx_register) {
-                printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
-                        __FUNCTION__, real_dev->name);
+                pr_info("8021q: device %s has buggy VLAN hw accel\n", name);
                 return -EOPNOTSUPP;
         }
 
         if ((real_dev->features & NETIF_F_HW_VLAN_FILTER) &&
             (!real_dev->vlan_rx_add_vid || !real_dev->vlan_rx_kill_vid)) {
-                printk(VLAN_DBG "%s: Device %s has buggy VLAN hw accel.\n",
-                        __FUNCTION__, real_dev->name);
+                pr_info("8021q: Device %s has buggy VLAN hw accel\n", name);
                 return -EOPNOTSUPP;
         }
 
@@ -355,11 +347,8 @@ int vlan_check_real_dev(struct net_device *real_dev, unsigned short vlan_id)
         if (!(real_dev->flags & IFF_UP))
                 return -ENETDOWN;
 
-        if (__find_vlan_dev(real_dev, vlan_id) != NULL) {
-                /* was already registered. */
-                printk(VLAN_DBG "%s: ALREADY had VLAN registered\n", __FUNCTION__);
+        if (__find_vlan_dev(real_dev, vlan_id) != NULL)
                 return -EEXIST;
-        }
 
         return 0;
 }
@@ -399,8 +388,8 @@ int register_vlan_dev(struct net_device *dev)
                 real_dev->vlan_rx_add_vid(real_dev, vlan_id);
 
         if (vlan_proc_add_dev(dev) < 0)
-                printk(KERN_WARNING "VLAN: failed to add proc entry for %s\n",
-                       dev->name);
+                pr_warning("8021q: failed to add proc entry for %s\n",
+                           dev->name);
         return 0;
 
 out_free_group:
@@ -419,11 +408,6 @@ static int register_vlan_device(struct net_device *real_dev,
         char name[IFNAMSIZ];
         int err;
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: if_name -:%s:-     vid: %i\n",
-                __FUNCTION__, eth_IF_name, VLAN_ID);
-#endif
-
         if (VLAN_ID >= VLAN_VID_MASK)
                 return -ERANGE;
 
@@ -432,10 +416,6 @@ static int register_vlan_device(struct net_device *real_dev,
                 return err;
 
         /* Gotta set up the fields for the device. */
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "About to allocate name, vlan_name_type: %i\n",
-               vlan_name_type);
-#endif
         switch (vlan_name_type) {
         case VLAN_NAME_TYPE_RAW_PLUS_VID:
                 /* name will look like:  eth1.0005 */
@@ -472,13 +452,6 @@ static int register_vlan_device(struct net_device *real_dev,
          */
         new_dev->mtu = real_dev->mtu;
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "Allocated new name -:%s:-\n", new_dev->name);
-        VLAN_MEM_DBG("new_dev->priv malloc, addr: %p  size: %i\n",
-                     new_dev->priv,
-                     sizeof(struct vlan_dev_info));
-#endif
-
         VLAN_DEV_INFO(new_dev)->vlan_id = VLAN_ID; /* 1 through VLAN_VID_MASK */
         VLAN_DEV_INFO(new_dev)->real_dev = real_dev;
         VLAN_DEV_INFO(new_dev)->dent = NULL;
@@ -489,9 +462,6 @@ static int register_vlan_device(struct net_device *real_dev,
         if (err < 0)
                 goto out_free_newdev;
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "Allocated new device successfully, returning.\n");
-#endif
         return 0;
 
 out_free_newdev:
@@ -641,10 +611,6 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
         args.device1[23] = 0;
         args.u.device2[23] = 0;
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: args.cmd: %x\n", __FUNCTION__, args.cmd);
-#endif
-
         rtnl_lock();
 
         switch (args.cmd) {
@@ -763,8 +729,6 @@ static int vlan_ioctl_handler(struct net *net, void __user *arg)
 
         default:
                 /* pass on to underlying device instead?? */
-                printk(VLAN_DBG "%s: Unknown VLAN CMD: %x \n",
-                        __FUNCTION__, args.cmd);
                 err = -EINVAL;
                 break;
         }
diff --git a/net/8021q/vlan.h b/net/8021q/vlan.h
index 7b615d6b6f46..56378651cc46 100644
--- a/net/8021q/vlan.h
+++ b/net/8021q/vlan.h
@@ -3,31 +3,6 @@
 
 #include <linux/if_vlan.h>
 
-/*  Uncomment this if you want debug traces to be shown. */
-/* #define VLAN_DEBUG */
-
-#define VLAN_ERR KERN_ERR
-#define VLAN_INF KERN_INFO
-#define VLAN_DBG KERN_ALERT /* change these... to debug, having a hard time
-                             * changing the log level at run-time..for some reason.
-                             */
-
-/*
-
-These I use for memory debugging.  I feared a leak at one time, but
-I never found it..and the problem seems to have dissappeared.  Still,
-I'll bet they might prove useful again... --Ben
-
-
-#define VLAN_MEM_DBG(x, y, z) printk(VLAN_DBG "%s:  "  x, __FUNCTION__, y, z);
-#define VLAN_FMEM_DBG(x, y) printk(VLAN_DBG "%s:  " x, __FUNCTION__, y);
-*/
-
-/* This way they don't do anything! */
-#define VLAN_MEM_DBG(x, y, z)
-#define VLAN_FMEM_DBG(x, y)
-
-
 extern unsigned short vlan_name_type;
 
 #define VLAN_GRP_HASH_SHIFT     5
diff --git a/net/8021q/vlan_dev.c b/net/8021q/vlan_dev.c
index 50d8edcbb897..756a71c1f4a5 100644
--- a/net/8021q/vlan_dev.c
+++ b/net/8021q/vlan_dev.c
@@ -60,9 +60,8 @@ static int vlan_dev_rebuild_header(struct sk_buff *skb)
                 return arp_find(veth->h_dest, skb);
 #endif
         default:
-                printk(VLAN_DBG
-                       "%s: unable to resolve type %X addresses.\n",
-                       dev->name, ntohs(veth->h_vlan_encapsulated_proto));
+                pr_debug("%s: unable to resolve type %X addresses.\n",
+                         dev->name, ntohs(veth->h_vlan_encapsulated_proto));
 
                 memcpy(veth->h_source, dev->dev_addr, ETH_ALEN);
                 break;
@@ -142,11 +141,6 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
 
         vid = (vlan_TCI & VLAN_VID_MASK);
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: skb: %p vlan_id: %hx\n",
-                __FUNCTION__, skb, vid);
-#endif
-
         /* Ok, we will find the correct VLAN device, strip the header,
          * and then go on as usual.
          */
@@ -162,11 +156,8 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
         skb->dev = __find_vlan_dev(dev, vid);
         if (!skb->dev) {
                 rcu_read_unlock();
-
-#ifdef VLAN_DEBUG
-                printk(VLAN_DBG "%s: ERROR: No net_device for VID: %i on dev: %s [%i]\n",
-                        __FUNCTION__, (unsigned int)(vid), dev->name, dev->ifindex);
-#endif
+                pr_debug("%s: ERROR: No net_device for VID: %u on dev: %s [%i]\n",
+                         __FUNCTION__, (unsigned int)vid, dev->name, dev->ifindex);
                 kfree_skb(skb);
                 return -1;
         }
@@ -186,11 +177,8 @@ int vlan_skb_recv(struct sk_buff *skb, struct net_device *dev,
          */
         skb->priority = vlan_get_ingress_priority(skb->dev, ntohs(vhdr->h_vlan_TCI));
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: priority: %lu  for TCI: %hu (hbo)\n",
-                __FUNCTION__, (unsigned long)(skb->priority),
-                ntohs(vhdr->h_vlan_TCI));
-#endif
+        pr_debug("%s: priority: %u for TCI: %hu\n",
+                 __FUNCTION__, skb->priority, ntohs(vhdr->h_vlan_TCI));
 
         /* The ethernet driver already did the pkt_type calculations
          * for us...
@@ -335,10 +323,8 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
         int build_vlan_header = 0;
         struct net_device *vdev = dev; /* save this for the bottom of the method */
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: skb: %p type: %hx len: %x vlan_id: %hx, daddr: %p\n",
-                __FUNCTION__, skb, type, len, VLAN_DEV_INFO(dev)->vlan_id, daddr);
-#endif
+        pr_debug("%s: skb: %p type: %hx len: %u vlan_id: %hx, daddr: %p\n",
+                 __FUNCTION__, skb, type, len, VLAN_DEV_INFO(dev)->vlan_id, daddr);
 
         /* build vlan header only if re_order_header flag is NOT set.  This
          * fixes some programs that get confused when they see a VLAN device
@@ -410,9 +396,7 @@ static int vlan_dev_hard_header(struct sk_buff *skb, struct net_device *dev,
                         return -ENOMEM;
                 }
                 VLAN_DEV_INFO(vdev)->cnt_inc_headroom_on_tx++;
-#ifdef VLAN_DEBUG
-                printk(VLAN_DBG "%s: %s: had to grow skb.\n", __FUNCTION__, vdev->name);
-#endif
+                pr_debug("%s: %s: had to grow skb.\n", __FUNCTION__, vdev->name);
         }
 
         if (build_vlan_header) {
@@ -453,10 +437,8 @@ static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 /* This is not a VLAN frame...but we can fix that! */
                 VLAN_DEV_INFO(dev)->cnt_encap_on_xmit++;
 
-#ifdef VLAN_DEBUG
-                printk(VLAN_DBG "%s: proto to encap: 0x%hx (hbo)\n",
-                        __FUNCTION__, htons(veth->h_vlan_proto));
-#endif
+                pr_debug("%s: proto to encap: 0x%hx\n",
+                         __FUNCTION__, htons(veth->h_vlan_proto));
                 /* Construct the second two bytes. This field looks something
                  * like:
                  * usr_priority: 3 bits  (high bits)
@@ -477,14 +459,15 @@ static int vlan_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
                 }
         }
 
-#ifdef VLAN_DEBUG
-        printk(VLAN_DBG "%s: about to send skb: %p to dev: %s\n",
+        pr_debug("%s: about to send skb: %p to dev: %s\n",
                 __FUNCTION__, skb, skb->dev->name);
-        printk(VLAN_DBG "  %2hx.%2hx.%2hx.%2xh.%2hx.%2hx %2hx.%2hx.%2hx.%2hx.%2hx.%2hx %4hx %4hx %4hx\n",
-               veth->h_dest[0], veth->h_dest[1], veth->h_dest[2], veth->h_dest[3], veth->h_dest[4], veth->h_dest[5],
-               veth->h_source[0], veth->h_source[1], veth->h_source[2], veth->h_source[3], veth->h_source[4], veth->h_source[5],
-               veth->h_vlan_proto, veth->h_vlan_TCI, veth->h_vlan_encapsulated_proto);
-#endif
+        pr_debug("  " MAC_FMT " " MAC_FMT " %4hx %4hx %4hx\n",
+                 veth->h_dest[0], veth->h_dest[1], veth->h_dest[2],
+                 veth->h_dest[3], veth->h_dest[4], veth->h_dest[5],
+                 veth->h_source[0], veth->h_source[1], veth->h_source[2],
+                 veth->h_source[3], veth->h_source[4], veth->h_source[5],
+                 veth->h_vlan_proto, veth->h_vlan_TCI,
+                 veth->h_vlan_encapsulated_proto);
 
         stats->tx_packets++; /* for statics only */
         stats->tx_bytes += skb->len;
@@ -596,7 +579,6 @@ int vlan_dev_set_vlan_flag(const struct net_device *dev,
                 }
                 return 0;
         }
-        printk(KERN_ERR "%s: flag %i is not valid.\n", __FUNCTION__, flag);
         return -EINVAL;
 }
 
diff --git a/net/8021q/vlanproc.c b/net/8021q/vlanproc.c
index 1972d5cc34e4..5da02e29a2c6 100644
--- a/net/8021q/vlanproc.c
+++ b/net/8021q/vlanproc.c
@@ -179,13 +179,6 @@ 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;
-        }
-
         dev_info->dent = create_proc_entry(vlandev->name,
                                            S_IFREG|S_IRUSR|S_IWUSR,
                                            proc_vlan_dir);
@@ -194,11 +187,6 @@ 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;
 }
 
@@ -207,28 +195,11 @@ 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;
         }
-
         return 0;
 }