1 files changed, 257 insertions, 257 deletions

diff --git a/net/wanrouter/af_wanpipe.c b/net/wanrouter/af_wanpipe.c
index c2059733e15a..41d7e32be70d 100644
--- a/net/wanrouter/af_wanpipe.c
+++ b/net/wanrouter/af_wanpipe.c
@@ -11,11 +11,11 @@
 *               2 of the License, or (at your option) any later version.
 * ============================================================================
 * Due Credit:
-*               Wanpipe socket layer is based on Packet and 
-*               the X25 socket layers. The above sockets were 
-*               used for the specific use of Sangoma Technologies 
-*               API programs. 
-*               Packet socket Authors: Ross Biro, Fred N. van Kempen and 
+*               Wanpipe socket layer is based on Packet and
+*               the X25 socket layers. The above sockets were
+*               used for the specific use of Sangoma Technologies
+*               API programs.
+*               Packet socket Authors: Ross Biro, Fred N. van Kempen and
 *                                      Alan Cox.
 *               X25 socket Author: Jonathan Naylor.
 * ============================================================================
@@ -28,7 +28,7 @@
 * Feb 29, 2000  Nenad Corbic     o Added support for PVC protocols, such as
 *                                  CHDLC, Frame Relay and HDLC API.
 * Jan 17, 2000  Nenad Corbic     o Initial version, based on AF_PACKET socket.
-*                                  X25API support only. 
+*                                  X25API support only.
 *
 ******************************************************************************/
 
@@ -71,33 +71,33 @@
         #define DBG_PRINTK(format, a...) printk(format, ## a)
 #else
         #define DBG_PRINTK(format, a...)
-#endif      
+#endif
 
 
-/* SECURE SOCKET IMPLEMENTATION 
- * 
+/* SECURE SOCKET IMPLEMENTATION
+ *
  *   TRANSMIT:
  *
  *      When the user sends a packet via send() system call
- *      the wanpipe_sendmsg() function is executed.  
- *      
+ *      the wanpipe_sendmsg() function is executed.
+ *
  *      Each packet is enqueud into sk->sk_write_queue transmit
  *      queue. When the packet is enqueued, a delayed transmit
- *      timer is triggerd which acts as a Bottom Half hander. 
+ *      timer is triggerd which acts as a Bottom Half hander.
  *
  *      wanpipe_delay_transmit() function (BH), dequeues packets
- *      from the sk->sk_write_queue transmit queue and sends it 
- *      to the deriver via dev->hard_start_xmit(skb, dev) function.  
+ *      from the sk->sk_write_queue transmit queue and sends it
+ *      to the deriver via dev->hard_start_xmit(skb, dev) function.
  *      Note, this function is actual a function pointer of if_send()
  *      routine in the wanpipe driver.
  *
  *      X25API GUARANTEED DELIVERY:
  *
- *         In order to provide 100% guaranteed packet delivery, 
- *         an atomic 'packet_sent' counter is implemented.  Counter 
- *         is incremented for each packet enqueued 
+ *         In order to provide 100% guaranteed packet delivery,
+ *         an atomic 'packet_sent' counter is implemented.  Counter
+ *         is incremented for each packet enqueued
  *         into sk->sk_write_queue.  Counter is decremented each
- *         time wanpipe_delayed_transmit() function successfuly 
+ *         time wanpipe_delayed_transmit() function successfuly
  *         passes the packet to the driver. Before each send(), a poll
  *         routine checks the sock resources The maximum value of
  *         packet sent counter is 1, thus if one packet is queued, the
@@ -110,11 +110,11 @@
  *      function, wanpipe_rcv() to queue the incoming packets
  *      into an AF_WANPIPE socket queue.  Based on wanpipe_rcv()
  *      return code, the driver knows whether the packet was
- *      successfully queued.  If the socket queue is full, 
- *      protocol flow control is used by the driver, if any, 
+ *      successfully queued.  If the socket queue is full,
+ *      protocol flow control is used by the driver, if any,
  *      to slow down the traffic until the sock queue is free.
  *
- *      Every time a packet arrives into a socket queue the 
+ *      Every time a packet arrives into a socket queue the
  *      socket wakes up processes which are waiting to receive
  *      data.
  *
@@ -122,12 +122,12 @@
  *      bit which signals the socket to kick the wanpipe driver
  *      bottom half hander when the socket queue is partialy
  *      empty. wanpipe_recvmsg() function performs this action.
- * 
+ *
  *      In case of x25api, packets will never be dropped, since
- *      flow control is available. 
- *      
- *      In case of streaming protocols like CHDLC, packets will 
- *      be dropped but the statistics will be generated. 
+ *      flow control is available.
+ *
+ *      In case of streaming protocols like CHDLC, packets will
+ *      be dropped but the statistics will be generated.
  */
 
 
@@ -170,11 +170,11 @@ struct wanpipe_opt
         struct net_device *dev; /* Bounded device */
         unsigned short lcn;     /* Binded LCN */
         unsigned char  svc;     /* 0=pvc, 1=svc */
-        unsigned char  timer;   /* flag for delayed transmit*/  
+        unsigned char  timer;   /* flag for delayed transmit*/
         struct timer_list tx_timer;
         unsigned poll_cnt;
         unsigned char force;    /* Used to force sock release */
-        atomic_t packet_sent;   
+        atomic_t packet_sent;
 };
 #endif
 
@@ -215,8 +215,8 @@ static int check_driver_busy (struct sock *);
  *
  *      Wanpipe socket bottom half handler.  This function
  *      is called by the WANPIPE device drivers to queue a
- *      incoming packet into the socket receive queue. 
- *      Once the packet is queued, all processes waiting to 
+ *      incoming packet into the socket receive queue.
+ *      Once the packet is queued, all processes waiting to
  *      read are woken up.
  *
  *      During socket bind, this function is bounded into
@@ -245,13 +245,13 @@ static int wanpipe_rcv(struct sk_buff *skb, struct net_device *dev,
         if (dev->hard_header_parse)
                 sll->sll_halen = dev->hard_header_parse(skb, sll->sll_addr);
 
-        /* 
+        /*
          * WAN_PACKET_DATA : Data which should be passed up the receive queue.
-         * WAN_PACKET_ASYC : Asynchronous data like place call, which should
-         *                   be passed up the listening sock.
-         * WAN_PACKET_ERR  : Asynchronous data like clear call or restart 
-         *                   which should go into an error queue.
-         */
+         * WAN_PACKET_ASYC : Asynchronous data like place call, which should
+         *                   be passed up the listening sock.
+         * WAN_PACKET_ERR  : Asynchronous data like clear call or restart
+         *                   which should go into an error queue.
+         */
         switch (skb->pkt_type){
 
                 case WAN_PACKET_DATA:
@@ -261,10 +261,10 @@ static int wanpipe_rcv(struct sk_buff *skb, struct net_device *dev,
                         break;
                 case WAN_PACKET_CMD:
                         sk->sk_state = chan->state;
-                        /* Bug fix: update Mar6. 
-                         * Do not set the sock lcn number here, since
-                         * cmd is not guaranteed to be executed on the
-                         * board, thus Lcn could be wrong */
+                        /* Bug fix: update Mar6.
+                         * Do not set the sock lcn number here, since
+                         * cmd is not guaranteed to be executed on the
+                         * board, thus Lcn could be wrong */
                         sk->sk_data_ready(sk, skb->len);
                         kfree_skb(skb);
                         break;
@@ -276,7 +276,7 @@ static int wanpipe_rcv(struct sk_buff *skb, struct net_device *dev,
                         break;
                 default:
                         printk(KERN_INFO "wansock: BH Illegal Packet Type Dropping\n");
-                        kfree_skb(skb); 
+                        kfree_skb(skb);
                         break;
         }
 
@@ -297,20 +297,20 @@ static int wanpipe_rcv(struct sk_buff *skb, struct net_device *dev,
  *
  *      Wanpipe LISTEN socket bottom half handler.  This function
  *      is called by the WANPIPE device drivers to queue an
- *      incoming call into the socket listening queue. 
- *      Once the packet is queued, the waiting accept() process 
+ *      incoming call into the socket listening queue.
+ *      Once the packet is queued, the waiting accept() process
  *      is woken up.
  *
  *      During socket bind, this function is bounded into
- *      WANPIPE driver private. 
- * 
+ *      WANPIPE driver private.
+ *
  *      IMPORTANT NOTE:
  *          The accept call() is waiting for an skb packet
  *          which contains a pointer to a device structure.
  *
- *          When we do a bind to a device structre, we 
- *          bind a newly created socket into "chan->sk".  Thus, 
- *          when accept receives the skb packet, it will know 
+ *          When we do a bind to a device structre, we
+ *          bind a newly created socket into "chan->sk".  Thus,
+ *          when accept receives the skb packet, it will know
  *          from which dev it came form, and in turn it will know
  *          the address of the new sock.
  *
@@ -322,31 +322,31 @@ static int wanpipe_listen_rcv (struct sk_buff *skb,  struct sock *sk)
         wanpipe_opt *wp = wp_sk(sk), *newwp;
         struct wan_sockaddr_ll *sll = (struct wan_sockaddr_ll*)skb->cb;
         struct sock *newsk;
-        struct net_device *dev; 
+        struct net_device *dev;
         sdla_t *card;
         mbox_cmd_t *mbox_ptr;
         wanpipe_common_t *chan;
 
-        /* Find a free device, if none found, all svc's are busy 
-         */
+        /* Find a free device, if none found, all svc's are busy
+         */
 
         card = (sdla_t*)wp->card;
         if (!card){
                 printk(KERN_INFO "wansock: LISTEN ERROR, No Card\n");
                 return -ENODEV;
         }
-        
+
         dev = wanpipe_find_free_dev(card);
         if (!dev){
                 printk(KERN_INFO "wansock: LISTEN ERROR, No Free Device\n");
                 return -ENODEV;
         }
 
-        chan=dev->priv; 
+        chan=dev->priv;
         chan->state = WANSOCK_CONNECTING;
 
         /* Allocate a new sock, which accept will bind
-         * and pass up to the user 
+         * and pass up to the user
          */
         if ((newsk = wanpipe_make_new(sk)) == NULL){
                 release_device(dev);
@@ -354,33 +354,33 @@ static int wanpipe_listen_rcv (struct sk_buff *skb,  struct sock *sk)
         }
 
 
-        /* Initialize the new sock structure 
+        /* Initialize the new sock structure
          */
         newsk->sk_bound_dev_if = dev->ifindex;
         newwp = wp_sk(newsk);
         newwp->card = wp->card;
 
         /* Insert the sock into the main wanpipe
-         * sock list.
-         */
+         * sock list.
+         */
         atomic_inc(&wanpipe_socks_nr);
 
         /* Allocate and fill in the new Mail Box. Then
-         * bind the mail box to the sock. It will be 
-         * used by the ioctl call to read call information
-         * and to execute commands. 
-         */     
+         * bind the mail box to the sock. It will be
+         * used by the ioctl call to read call information
+         * and to execute commands.
+         */
         if ((mbox_ptr = kzalloc(sizeof(mbox_cmd_t), GFP_ATOMIC)) == NULL) {
                 wanpipe_kill_sock_irq (newsk);
-                release_device(dev);            
+                release_device(dev);
                 return -ENOMEM;
         }
         memcpy(mbox_ptr,skb->data,skb->len);
 
         /* Register the lcn on which incoming call came
-         * from. Thus, if we have to clear it, we know
-         * which lcn to clear
-         */ 
+         * from. Thus, if we have to clear it, we know
+         * which lcn to clear
+         */
 
         newwp->lcn = mbox_ptr->cmd.lcn;
         newwp->mbox = (void *)mbox_ptr;
@@ -416,20 +416,20 @@ static int wanpipe_listen_rcv (struct sk_buff *skb,  struct sock *sk)
 
         /* We must do this manually, since the sock_queue_rcv_skb()
          * function sets the skb->dev to NULL.  However, we use
-         * the dev field in the accept function.*/ 
-        if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >= 
+         * the dev field in the accept function.*/
+        if (atomic_read(&sk->sk_rmem_alloc) + skb->truesize >=
             (unsigned)sk->sk_rcvbuf) {
 
-                wanpipe_unlink_driver(newsk);
+                wanpipe_unlink_driver(newsk);
                 wanpipe_kill_sock_irq (newsk);
                 --sk->sk_ack_backlog;
                 return -ENOMEM;
-        }       
+        }
 
         skb_set_owner_r(skb, sk);
         skb_queue_tail(&sk->sk_receive_queue, skb);
         sk->sk_data_ready(sk, skb->len);
-        
+
         return 0;
 }
 
@@ -474,7 +474,7 @@ static struct sock *wanpipe_make_new(struct sock *osk)
         return sk;
 }
 
-/* 
+/*
  * FIXME: wanpipe_opt has to include a sock in its definition and stop using
  * sk_protinfo, but this code is not even compilable now, so lets leave it for
  * later.
@@ -489,12 +489,12 @@ static struct proto wanpipe_proto = {
  * wanpipe_make_new
  *
  *      Allocate memory for the a new sock, and sock
- *      private data.  
- *      
+ *      private data.
+ *
  *      Increment the module use count.
- *              
- *      This function is used by wanpipe_create() and 
- *      wanpipe_make_new() functions. 
+ *
+ *      This function is used by wanpipe_create() and
+ *      wanpipe_make_new() functions.
  *
  *===========================================================*/
 
@@ -514,7 +514,7 @@ static struct sock *wanpipe_alloc_socket(void)
         wp_sk(sk) = wan_opt;
 
         /* Use timer to send data to the driver. This will act
-         * as a BH handler for sendmsg functions */
+         * as a BH handler for sendmsg functions */
         init_timer(&wan_opt->tx_timer);
         wan_opt->tx_timer.data     = (unsigned long)sk;
         wan_opt->tx_timer.function = wanpipe_delayed_transmit;
@@ -528,14 +528,14 @@ static struct sock *wanpipe_alloc_socket(void)
  * wanpipe_sendmsg
  *
  *      This function implements a sendto() system call,
- *      for AF_WANPIPE socket family. 
+ *      for AF_WANPIPE socket family.
  *      During socket bind() sk->sk_bound_dev_if is initialized
  *      to a correct network device. This number is used
  *      to find a network device to which the packet should
  *      be passed to.
  *
- *      Each packet is queued into sk->sk_write_queue and 
- *      delayed transmit bottom half handler is marked for 
+ *      Each packet is queued into sk->sk_write_queue and
+ *      delayed transmit bottom half handler is marked for
  *      execution.
  *
  *      A socket must be in WANSOCK_CONNECTED state before
@@ -554,18 +554,18 @@ static int wanpipe_sendmsg(struct kiocb *iocb, struct socket *sock,
         unsigned char *addr;
         int ifindex, err, reserve = 0;
 
-        
+
         if (!sock_flag(sk, SOCK_ZAPPED))
                 return -ENETDOWN;
 
         if (sk->sk_state != WANSOCK_CONNECTED)
-                return -ENOTCONN;       
+                return -ENOTCONN;
 
-        if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT)) 
+        if (msg->msg_flags & ~(MSG_DONTWAIT|MSG_CMSG_COMPAT))
                 return(-EINVAL);
 
         /* it was <=, now one can send
-         * zero length packets */
+         * zero length packets */
         if (len < sizeof(x25api_hdr_t))
                 return -EINVAL;
 
@@ -577,7 +577,7 @@ static int wanpipe_sendmsg(struct kiocb *iocb, struct socket *sock,
                 addr    = NULL;
 
         }else{
-                if (msg->msg_namelen < sizeof(struct wan_sockaddr_ll)){ 
+                if (msg->msg_namelen < sizeof(struct wan_sockaddr_ll)){
                         return -EINVAL;
                 }
 
@@ -592,12 +592,12 @@ static int wanpipe_sendmsg(struct kiocb *iocb, struct socket *sock,
                 return -ENXIO;
         }
         dev_put(dev);
-        
+
         if (sock->type == SOCK_RAW)
                 reserve = dev->hard_header_len;
 
         if (len > dev->mtu+reserve){
-                return -EMSGSIZE;
+                return -EMSGSIZE;
         }
 
         skb = sock_alloc_send_skb(sk, len + LL_RESERVED_SPACE(dev),
@@ -606,7 +606,7 @@ static int wanpipe_sendmsg(struct kiocb *iocb, struct socket *sock,
         if (skb==NULL){
                 goto out_unlock;
         }
-                
+
         skb_reserve(skb, LL_RESERVED_SPACE(dev));
         skb->nh.raw = skb->data;
 
@@ -645,7 +645,7 @@ static int wanpipe_sendmsg(struct kiocb *iocb, struct socket *sock,
 
         if (!(test_and_set_bit(0, &wp->timer)))
                 mod_timer(&wp->tx_timer, jiffies + 1);
-        
+
         return(len);
 
 out_free:
@@ -658,12 +658,12 @@ out_unlock:
  * wanpipe_delayed_tarnsmit
  *
  *      Transmit bottom half handler. It dequeues packets
- *      from sk->sk_write_queue and passes them to the 
- *      driver.  If the driver is busy, the packet is 
- *      re-enqueued.  
+ *      from sk->sk_write_queue and passes them to the
+ *      driver.  If the driver is busy, the packet is
+ *      re-enqueued.
  *
  *      Packet Sent counter is decremented on successful
- *      transmission. 
+ *      transmission.
  *===========================================================*/
 
 
@@ -680,17 +680,17 @@ static void wanpipe_delayed_transmit (unsigned long data)
                 DBG_PRINTK(KERN_INFO "wansock: Transmit delay, no dev or card\n");
                 return;
         }
-        
+
         if (sk->sk_state != WANSOCK_CONNECTED || !sock_flag(sk, SOCK_ZAPPED)) {
                 clear_bit(0, &wp->timer);
                 DBG_PRINTK(KERN_INFO "wansock: Tx Timer, State not CONNECTED\n");
                 return;
         }
-        
+
         /* If driver is executing command, we must offload
-         * the board by not sending data. Otherwise a 
-         * pending command will never get a free buffer
-         * to execute */        
+         * the board by not sending data. Otherwise a
+         * pending command will never get a free buffer
+         * to execute */
         if (atomic_read(&card->u.x.command_busy)){
                 wp->tx_timer.expires = jiffies + SLOW_BACKOFF;
                 add_timer(&wp->tx_timer);
@@ -698,30 +698,30 @@ static void wanpipe_delayed_transmit (unsigned long data)
                 return;
         }
 
-        
+
         if (test_and_set_bit(0,&wanpipe_tx_critical)){
                 printk(KERN_INFO "WanSock: Tx timer critical %s\n",dev->name);
                 wp->tx_timer.expires = jiffies + SLOW_BACKOFF;
                 add_timer(&wp->tx_timer);
                 return;
-        }       
-        
+        }
+
         /* Check for a packet in the fifo and send */
         if ((skb = skb_dequeue(&sk->sk_write_queue)) != NULL){
 
-                if (dev->hard_start_xmit(skb, dev) != 0){                       
+                if (dev->hard_start_xmit(skb, dev) != 0){
 
                         /* Driver failed to transmit, re-enqueue
-                         * the packet and retry again later */
+                         * the packet and retry again later */
                         skb_queue_head(&sk->sk_write_queue,skb);
                         clear_bit(0,&wanpipe_tx_critical);
                         return;
                 }else{
 
                         /* Packet Sent successful. Check for more packets
-                         * if more packets, re-trigger the transmit routine 
-                         * other wise exit
-                         */
+                         * if more packets, re-trigger the transmit routine
+                         * other wise exit
+                         */
                         atomic_dec(&wp->packet_sent);
 
                         if (skb_peek(&sk->sk_write_queue) == NULL) {
@@ -741,18 +741,18 @@ static void wanpipe_delayed_transmit (unsigned long data)
 }
 
 /*============================================================
- * execute_command 
+ * execute_command
  *
  *      Execute x25api commands.  The atomic variable
  *      chan->command is used to indicate to the driver that
  *      command is pending for execution.  The acutal command
- *      structure is placed into a sock mbox structure 
+ *      structure is placed into a sock mbox structure
  *      (wp_sk(sk)->mbox).
  *
  *      The sock private structure, mbox is
  *      used as shared memory between sock and the driver.
  *      Driver uses the sock mbox to execute the command
- *      and return the result.  
+ *      and return the result.
  *
  *      For all command except PLACE CALL, the function
  *      waits for the result.  PLACE CALL can be ether
@@ -768,7 +768,7 @@ static int execute_command(struct sock *sk,  unsigned char cmd, unsigned int fla
         wanpipe_common_t *chan=NULL;
         int err=0;
         DECLARE_WAITQUEUE(wait, current);
-        
+
         dev = dev_get_by_index(sk->sk_bound_dev_if);
         if (dev == NULL){
                 printk(KERN_INFO "wansock: Exec failed no dev %i\n",
@@ -793,7 +793,7 @@ static int execute_command(struct sock *sk,  unsigned char cmd, unsigned int fla
                 return -EINVAL;
         }
 
-        ((mbox_cmd_t*)wp->mbox)->cmd.command = cmd;     
+        ((mbox_cmd_t*)wp->mbox)->cmd.command = cmd;
         ((mbox_cmd_t*)wp->mbox)->cmd.lcn     = wp->lcn;
         ((mbox_cmd_t*)wp->mbox)->cmd.result  = 0x7F;
 
@@ -820,12 +820,12 @@ static int execute_command(struct sock *sk,  unsigned char cmd, unsigned int fla
         }
         current->state = TASK_RUNNING;
         remove_wait_queue(sk->sk_sleep,&wait);
-        
+
         return err;
 }
 
 /*============================================================
- * wanpipe_destroy_timer 
+ * wanpipe_destroy_timer
  *
  *      Used by wanpipe_release, to delay release of
  *      the socket.
@@ -846,7 +846,7 @@ static void wanpipe_destroy_timer(unsigned long data)
 
                 kfree(wp);
                 wp_sk(sk) = NULL;
-                
+
                 if (atomic_read(&sk->sk_refcnt) != 1) {
                         atomic_set(&sk->sk_refcnt, 1);
                         DBG_PRINTK(KERN_INFO "wansock: Error, wrong reference count: %i ! :delay.\n",
@@ -865,9 +865,9 @@ static void wanpipe_destroy_timer(unsigned long data)
 /*============================================================
  * wanpipe_unlink_driver
  *
- *      When the socket is released, this function is 
+ *      When the socket is released, this function is
  *      used to remove links that bind the sock and the
- *      driver together.  
+ *      driver together.
  *===========================================================*/
 static void wanpipe_unlink_driver (struct sock *sk)
 {
@@ -882,7 +882,7 @@ static void wanpipe_unlink_driver (struct sock *sk)
         if (!dev){
                 printk(KERN_INFO "wansock: No dev on release\n");
                 return;
-        }                       
+        }
         dev_put(dev);
 
         if ((chan = dev->priv) == NULL){
@@ -897,7 +897,7 @@ static void wanpipe_unlink_driver (struct sock *sk)
         chan->tx_timer=NULL;
         clear_bit(0,&chan->common_critical);
         release_device(dev);
-        
+
         return;
 }
 
@@ -931,7 +931,7 @@ static void wanpipe_link_driver(struct net_device *dev, struct sock *sk)
 /*============================================================
  * release_device
  *
- *      During sock release, clear a critical bit, which 
+ *      During sock release, clear a critical bit, which
  *      marks the device a being taken.
  *===========================================================*/
 
@@ -945,8 +945,8 @@ static void release_device(struct net_device *dev)
 /*============================================================
  * wanpipe_release
  *
- *      Close a PACKET socket. This is fairly simple. We 
- *      immediately go to 'closed' state and remove our 
+ *      Close a PACKET socket. This is fairly simple. We
+ *      immediately go to 'closed' state and remove our
  *      protocol entry in the device list.
  *===========================================================*/
 
@@ -954,7 +954,7 @@ static int wanpipe_release(struct socket *sock)
 {
         wanpipe_opt *wp;
         struct sock *sk = sock->sk;
-        
+
         if (!sk)
                 return 0;
 
@@ -962,9 +962,9 @@ static int wanpipe_release(struct socket *sock)
         check_write_queue(sk);
 
         /* Kill the tx timer, if we don't kill it now, the timer
-         * will run after we kill the sock.  Timer code will 
-         * try to access the sock which has been killed and cause
-         * kernel panic */
+         * will run after we kill the sock.  Timer code will
+         * try to access the sock which has been killed and cause
+         * kernel panic */
 
         del_timer(&wp->tx_timer);
 
@@ -982,7 +982,7 @@ static int wanpipe_release(struct socket *sock)
                         DBG_PRINTK(KERN_INFO "wansock: Sending Clear Indication %i\n",
                                         sk->sk_state);
                         dev_put(dev);
-                }       
+                }
         }
 
         set_bit(1,&wanpipe_tx_critical);
@@ -992,10 +992,10 @@ static int wanpipe_release(struct socket *sock)
         clear_bit(1,&wanpipe_tx_critical);
 
 
-        
+
         release_driver(sk);
 
-        
+
         /*
          *      Now the socket is dead. No more input will appear.
          */
@@ -1040,9 +1040,9 @@ static int wanpipe_release(struct socket *sock)
 /*============================================================
  * check_write_queue
  *
- *      During sock shutdown, if the sock state is 
- *      WANSOCK_CONNECTED and there is transmit data 
- *      pending. Wait until data is released 
+ *      During sock shutdown, if the sock state is
+ *      WANSOCK_CONNECTED and there is transmit data
+ *      pending. Wait until data is released
  *      before proceeding.
  *===========================================================*/
 
@@ -1062,7 +1062,7 @@ static void check_write_queue(struct sock *sk)
 /*============================================================
  * release_driver
  *
- *      This function is called during sock shutdown, to 
+ *      This function is called during sock shutdown, to
  *      release any resources and links that bind the sock
  *      to the driver.  It also changes the state of the
  *      sock to WANSOCK_DISCONNECTED
@@ -1105,7 +1105,7 @@ static void release_driver(struct sock *sk)
  *  start_cleanup_timer
  *
  *      If new incoming call's are pending but the socket
- *      is being released, start the timer which will 
+ *      is being released, start the timer which will
  *      envoke the kill routines for pending socks.
  *===========================================================*/
 
@@ -1125,7 +1125,7 @@ static void start_cleanup_timer (struct sock *sk)
  *
  *      This is a function which performs actual killing
  *      of the sock.  It releases socket resources,
- *      and unlinks the sock from the driver. 
+ *      and unlinks the sock from the driver.
  *===========================================================*/
 
 static void wanpipe_kill_sock_timer (unsigned long data)
@@ -1139,13 +1139,13 @@ static void wanpipe_kill_sock_timer (unsigned long data)
 
         /* This function can be called from interrupt. We must use
          * appropriate locks */
-        
+
         if (test_bit(1,&wanpipe_tx_critical)){
                 sk->sk_timer.expires = jiffies + 10;
                 add_timer(&sk->sk_timer);
                 return;
         }
-        
+
         write_lock(&wanpipe_sklist_lock);
         sk_del_node_init(sk);
         write_unlock(&wanpipe_sklist_lock);
@@ -1159,7 +1159,7 @@ static void wanpipe_kill_sock_timer (unsigned long data)
                         chan=dev->priv;
                         atomic_set(&chan->disconnect,1);
                         dev_put(dev);
-                }       
+                }
         }
 
         release_driver(sk);
@@ -1170,7 +1170,7 @@ static void wanpipe_kill_sock_timer (unsigned long data)
         skb_queue_purge(&sk->sk_receive_queue);
         skb_queue_purge(&sk->sk_write_queue);
         skb_queue_purge(&sk->sk_error_queue);
-        
+
         if (atomic_read(&sk->sk_rmem_alloc) ||
             atomic_read(&sk->sk_wmem_alloc)) {
                 del_timer(&sk->sk_timer);
@@ -1205,7 +1205,7 @@ static void wanpipe_kill_sock_accept (struct sock *sk)
 
         /* This function can be called from interrupt. We must use
          * appropriate locks */
-        
+
         write_lock(&wanpipe_sklist_lock);
         sk_del_node_init(sk);
         write_unlock(&wanpipe_sklist_lock);
@@ -1282,10 +1282,10 @@ static int wanpipe_do_bind(struct sock *sk, struct net_device *dev,
                         chan=dev->priv;
                         sk->sk_state = chan->state;
 
-                        if (wp->num == htons(X25_PROT) && 
-                            sk->sk_state != WANSOCK_DISCONNECTED && 
+                        if (wp->num == htons(X25_PROT) &&
+                            sk->sk_state != WANSOCK_DISCONNECTED &&
                             sk->sk_state != WANSOCK_CONNECTING) {
-                                DBG_PRINTK(KERN_INFO 
+                                DBG_PRINTK(KERN_INFO
                                         "wansock: Binding to Device not DISCONNECTED %i\n",
                                                 sk->sk_state);
                                 release_device(dev);
@@ -1338,7 +1338,7 @@ static int wanpipe_bind(struct socket *sock, struct sockaddr *uaddr, int addr_le
         /*
          *      Check legality
          */
-         
+
         if (addr_len < sizeof(struct wan_sockaddr_ll)){
                 printk(KERN_INFO "wansock: Address length error\n");
                 return -EINVAL;
@@ -1358,12 +1358,12 @@ static int wanpipe_bind(struct socket *sock, struct sockaddr *uaddr, int addr_le
 
         if (!strcmp(sll->sll_device,"svc_listen")){
 
-                /* Bind a sock to a card structure for listening 
-                 */             
-                int err=0; 
+                /* Bind a sock to a card structure for listening
+                 */
+                int err=0;
 
                 /* This is x25 specific area if protocol doesn't
-                 * match, return error */
+                 * match, return error */
                 if (sll->sll_protocol != htons(X25_PROT))
                         return -EINVAL;
 
@@ -1376,14 +1376,14 @@ static int wanpipe_bind(struct socket *sock, struct sockaddr *uaddr, int addr_le
                 sk->sk_state = WANSOCK_BIND_LISTEN;
                 return 0;
 
-        }else if (!strcmp(sll->sll_device,"svc_connect")){ 
+        }else if (!strcmp(sll->sll_device,"svc_connect")){
 
                 /* This is x25 specific area if protocol doesn't
-                 * match, return error */
+                 * match, return error */
                 if (sll->sll_protocol != htons(X25_PROT))
                         return -EINVAL;
 
-                /* Find a free device 
+                /* Find a free device
                  */
                 dev = wanpipe_find_free_dev(card);
                 if (dev == NULL){
@@ -1392,9 +1392,9 @@ static int wanpipe_bind(struct socket *sock, struct sockaddr *uaddr, int addr_le
                         return -EINVAL;
                 }
         }else{
-                /* Bind a socket to a interface name 
-                 * This is used by PVC mostly
-                 */
+                /* Bind a socket to a interface name
+                 * This is used by PVC mostly
+                 */
                 strlcpy(name,sll->sll_device,sizeof(name));
                 dev = dev_get_by_name(name);
                 if (dev == NULL){
@@ -1419,8 +1419,8 @@ static int wanpipe_bind(struct socket *sock, struct sockaddr *uaddr, int addr_le
 
 /*============================================================
  * get_atomic_device
- *      
- *      Sets a bit atomically which indicates that 
+ *
+ *      Sets a bit atomically which indicates that
  *      the interface is taken. This avoids race conditions.
  *===========================================================*/
 
@@ -1436,7 +1436,7 @@ static inline int get_atomic_device(struct net_device *dev)
 
 /*============================================================
  * check_dev
- *      
+ *
  *      Check that device name belongs to a particular card.
  *===========================================================*/
 
@@ -1446,8 +1446,8 @@ static int check_dev(struct net_device *dev, sdla_t *card)
 
         for (tmp_dev = card->wandev.dev; tmp_dev;
              tmp_dev = *((struct net_device **)tmp_dev->priv)) {
-                if (tmp_dev->ifindex == dev->ifindex){ 
-                        return 0;       
+                if (tmp_dev->ifindex == dev->ifindex){
+                        return 0;
                 }
         }
         return 1;
@@ -1455,7 +1455,7 @@ static int check_dev(struct net_device *dev, sdla_t *card)
 
 /*============================================================
  *  wanpipe_find_free_dev
- *      
+ *
  *      Find a free network interface. If found set atomic
  *      bit indicating that the interface is taken.
  *      X25API Specific.
@@ -1468,12 +1468,12 @@ struct net_device *wanpipe_find_free_dev(sdla_t *card)
 
         if (test_and_set_bit(0,&find_free_critical)){
                 printk(KERN_INFO "CRITICAL in Find Free\n");
-        }       
+        }
 
         for (dev = card->wandev.dev; dev;
              dev = *((struct net_device **)dev->priv)) {
                 chan = dev->priv;
-                if (!chan) 
+                if (!chan)
                         continue;
                 if (chan->usedby == API && chan->svc){
                         if (!get_atomic_device (dev)){
@@ -1492,16 +1492,16 @@ struct net_device *wanpipe_find_free_dev(sdla_t *card)
 
 /*============================================================
  *  wanpipe_create
- *      
+ *
  *      SOCKET() System call.  It allocates a sock structure
- *      and adds the socket to the wanpipe_sk_list. 
+ *      and adds the socket to the wanpipe_sk_list.
  *      Crates AF_WANPIPE socket.
  *===========================================================*/
 
 static int wanpipe_create(struct socket *sock, int protocol)
 {
         struct sock *sk;
-        
+
         //FIXME: This checks for root user, SECURITY ?
         //if (!capable(CAP_NET_RAW))
         //      return -EPERM;
@@ -1526,7 +1526,7 @@ static int wanpipe_create(struct socket *sock, int protocol)
         sk->sk_bound_dev_if = 0;
 
         atomic_inc(&wanpipe_socks_nr);
-        
+
         /* We must disable interrupts because the ISR
          * can also change the list */
         set_bit(1,&wanpipe_tx_critical);
@@ -1541,8 +1541,8 @@ static int wanpipe_create(struct socket *sock, int protocol)
 
 /*============================================================
  *  wanpipe_recvmsg
- *      
- *      Pull a packet from our receive queue and hand it 
+ *
+ *      Pull a packet from our receive queue and hand it
  *      to the user. If necessary we block.
  *===========================================================*/
 
@@ -1570,13 +1570,13 @@ static int wanpipe_recvmsg(struct kiocb *iocb, struct socket *sock,
          *      but then it will block.
          */
 
-        if (flags & MSG_OOB){   
+        if (flags & MSG_OOB){
                 skb = skb_dequeue(&sk->sk_error_queue);
         }else{
                 skb=skb_recv_datagram(sk,flags,1,&err);
         }
         /*
-         *      An error occurred so return it. Because skb_recv_datagram() 
+         *      An error occurred so return it. Because skb_recv_datagram()
          *      handles the blocking we don't see and worry about blocking
          *      retries.
          */
@@ -1602,9 +1602,9 @@ static int wanpipe_recvmsg(struct kiocb *iocb, struct socket *sock,
         err = memcpy_toiovec(msg->msg_iov, skb->data, copied);
         if (err)
                 goto out_free;
-        
+
         sock_recv_timestamp(msg, sk, skb);
-        
+
         if (msg->msg_name)
                 memcpy(msg->msg_name, skb->cb, msg->msg_namelen);
 
@@ -1623,13 +1623,13 @@ out:
 
 /*============================================================
  *  wanpipe_wakeup_driver
- *      
+ *
  *      If socket receive buffer is full and driver cannot
  *      pass data up the sock, it sets a packet_block flag.
- *      This function check that flag and if sock receive 
- *      queue has room it kicks the driver BH handler. 
+ *      This function check that flag and if sock receive
+ *      queue has room it kicks the driver BH handler.
  *
- *      This way, driver doesn't have to poll the sock 
+ *      This way, driver doesn't have to poll the sock
  *      receive queue.
  *===========================================================*/
 
@@ -1646,8 +1646,8 @@ static void wanpipe_wakeup_driver(struct sock *sk)
 
         if ((chan = dev->priv) == NULL)
                 return;
-        
-        if (atomic_read(&chan->receive_block)){  
+
+        if (atomic_read(&chan->receive_block)){
                 if (atomic_read(&sk->sk_rmem_alloc) <
                     ((unsigned)sk->sk_rcvbuf * 0.9)) {
                         printk(KERN_INFO "wansock: Queuing task for wanpipe\n");
@@ -1655,13 +1655,13 @@ static void wanpipe_wakeup_driver(struct sock *sk)
                         wanpipe_queue_tq(&chan->wanpipe_task);
                         wanpipe_mark_bh();
                 }
-        }       
-}       
+        }
+}
 
 /*============================================================
  *  wanpipe_getname
- *      
- *      I don't know what to do with this yet. 
+ *
+ *      I don't know what to do with this yet.
  *      User can use this function to get sock address
  *      information. Not very useful for Sangoma's purposes.
  *===========================================================*/
@@ -1687,17 +1687,17 @@ static int wanpipe_getname(struct socket *sock, struct sockaddr *uaddr,
                 sll->sll_halen = 0;
         }
         *uaddr_len = sizeof(*sll);
-        
+
         dev_put(dev);
-        
+
         return 0;
 }
 
 /*============================================================
  *  wanpipe_notifier
- *      
+ *
  *      If driver turns off network interface, this function
- *      will be envoked. Currently I treate it as a 
+ *      will be envoked. Currently I treate it as a
  *      call disconnect. More thought should go into this
  *      function.
  *
@@ -1718,7 +1718,7 @@ static int wanpipe_notifier(struct notifier_block *this, unsigned long msg, void
                         continue;
                 if (dev == NULL)
                         continue;
-                
+
                 switch (msg) {
                 case NETDEV_DOWN:
                 case NETDEV_UNREGISTER:
@@ -1732,7 +1732,7 @@ static int wanpipe_notifier(struct notifier_block *this, unsigned long msg, void
 
                                 if (msg == NETDEV_UNREGISTER) {
                                         printk(KERN_INFO "wansock: Unregistering Device: %s\n",
-                                                          dev->name);
+                                                          dev->name);
                                         wanpipe_unlink_driver(sk);
                                         sk->sk_bound_dev_if = 0;
                                 }
@@ -1753,7 +1753,7 @@ static int wanpipe_notifier(struct notifier_block *this, unsigned long msg, void
 
 /*============================================================
  *  wanpipe_ioctl
- *      
+ *
  *      Execute a user commands, and set socket options.
  *
  * FIXME: More thought should go into this function.
@@ -1765,7 +1765,7 @@ static int wanpipe_ioctl(struct socket *sock, unsigned int cmd, unsigned long ar
         struct sock *sk = sock->sk;
         int err;
 
-        switch(cmd) 
+        switch(cmd)
         {
                 case SIOCGSTAMP:
                         return sock_get_timestamp(sk, (struct timeval __user *)arg);
@@ -1778,7 +1778,7 @@ static int wanpipe_ioctl(struct socket *sock, unsigned int cmd, unsigned long ar
 
                         if (sk->sk_state == WANSOCK_CONNECTED)
                                 return 0;
-                        
+
                         return 1;
 
 
@@ -1804,7 +1804,7 @@ static int wanpipe_ioctl(struct socket *sock, unsigned int cmd, unsigned long ar
                 case SIOC_WANPIPE_DEBUG:
 
                         return wanpipe_debug(sk,(void*)arg);
-        
+
                 case SIOC_WANPIPE_SET_NONBLOCK:
 
                         if (sk->sk_state != WANSOCK_DISCONNECTED)
@@ -1812,7 +1812,7 @@ static int wanpipe_ioctl(struct socket *sock, unsigned int cmd, unsigned long ar
 
                         sock->file->f_flags |= O_NONBLOCK;
                         return 0;
-        
+
 #ifdef CONFIG_INET
                 case SIOCADDRT:
                 case SIOCDELRT:
@@ -1842,7 +1842,7 @@ static int wanpipe_ioctl(struct socket *sock, unsigned int cmd, unsigned long ar
 
 /*============================================================
  *  wanpipe_debug
- *      
+ *
  *      This function will pass up information about all
  *      active sockets.
  *
@@ -1893,49 +1893,49 @@ static int wanpipe_debug (struct sock *origsk, void *arg)
 
                 if (sk->sk_bound_dev_if) {
                         dev = dev_get_by_index(sk->sk_bound_dev_if);
-                        if (!dev)       
+                        if (!dev)
                                 continue;
 
                         chan=dev->priv;
                         dev_put(dev);
-        
+
                         if ((err=put_user(chan->state, &dbg_data->debug[cnt].d_state)))
                                 return err;
                         if ((err=put_user(chan->svc, &dbg_data->debug[cnt].svc)))
                                 return err;
 
-                        if ((err=put_user(atomic_read(&chan->command), 
+                        if ((err=put_user(atomic_read(&chan->command),
                                                 &dbg_data->debug[cnt].command)))
                                 return err;
 
 
                         if (wp){
-                                sdla_t *card = (sdla_t*)wp->card;                       
-        
+                                sdla_t *card = (sdla_t*)wp->card;
+
                                 if (card){
-                                        if ((err=put_user(atomic_read(&card->u.x.command_busy), 
+                                        if ((err=put_user(atomic_read(&card->u.x.command_busy),
                                                                 &dbg_data->debug[cnt].cmd_busy)))
                                                 return err;
                                 }
 
-                                if ((err=put_user(wp->lcn, 
+                                if ((err=put_user(wp->lcn,
                                                   &dbg_data->debug[cnt].lcn)))
                                         return err;
-                                
+
                                 if (wp->mbox) {
                                         if ((err=put_user(1, &dbg_data->debug[cnt].mbox)))
                                                 return err;
                                 }
                         }
 
-                        if ((err=put_user(atomic_read(&chan->receive_block), 
+                        if ((err=put_user(atomic_read(&chan->receive_block),
                                                                 &dbg_data->debug[cnt].rblock)))
                                 return err;
 
                         if (copy_to_user(dbg_data->debug[cnt].name, dev->name, strlen(dev->name)))
                                 return -EFAULT;
                 }
-        
+
                 if (++cnt == MAX_NUM_DEBUG)
                         break;
         }
@@ -1944,7 +1944,7 @@ static int wanpipe_debug (struct sock *origsk, void *arg)
 
 /*============================================================
  *  get_ioctl_cmd
- *      
+ *
  *      Pass up the contents of socket MBOX to the user.
  *===========================================================*/
 
@@ -1974,7 +1974,7 @@ static int get_ioctl_cmd (struct sock *sk, void *arg)
         if ((err=put_user(mbox_ptr->cmd.result, &usr_data->hdr.result)))
                 return err;
         if ((err=put_user(mbox_ptr->cmd.lcn, &usr_data->hdr.lcn)))
-                return err;     
+                return err;
 
         if (mbox_ptr->cmd.length > 0){
                 if (mbox_ptr->cmd.length > X25_MAX_DATA)
@@ -1986,13 +1986,13 @@ static int get_ioctl_cmd (struct sock *sk, void *arg)
                 }
         }
         return 0;
-} 
+}
 
 /*============================================================
  *  set_ioctl_cmd
- *      
+ *
  *      Before command can be execute, socket MBOX must
- *      be created, and initialized with user data.     
+ *      be created, and initialized with user data.
  *===========================================================*/
 
 static int set_ioctl_cmd (struct sock *sk, void *arg)
@@ -2008,7 +2008,7 @@ static int set_ioctl_cmd (struct sock *sk, void *arg)
                         return -ENODEV;
 
                 dev_put(dev);
-                
+
                 if ((mbox_ptr = kzalloc(sizeof(mbox_cmd_t), GFP_ATOMIC)) == NULL)
                         return -ENOMEM;
 
@@ -2092,12 +2092,12 @@ unsigned int wanpipe_poll(struct file * file, struct socket *sock, poll_table *w
                 return mask;
         }
 
-        /* This check blocks the user process if there is   
+        /* This check blocks the user process if there is
          * a packet already queued in the socket write queue.
-         * This option is only for X25API protocol, for other
-         * protocol like chdlc enable streaming mode, 
-         * where multiple packets can be pending in the socket 
-         * transmit queue */
+         * This option is only for X25API protocol, for other
+         * protocol like chdlc enable streaming mode,
+         * where multiple packets can be pending in the socket
+         * transmit queue */
 
         if (wp_sk(sk)->num == htons(X25_PROT)) {
                 if (atomic_read(&wp_sk(sk)->packet_sent))
@@ -2110,7 +2110,7 @@ unsigned int wanpipe_poll(struct file * file, struct socket *sock, poll_table *w
         }else{
                 set_bit(SOCK_ASYNC_NOSPACE, &sk->sk_socket->flags);
         }
-                
+
         return mask;
 }
 
@@ -2125,8 +2125,8 @@ static int wanpipe_listen(struct socket *sock, int backlog)
 {
         struct sock *sk = sock->sk;
 
-        /* This is x25 specific area if protocol doesn't
-         * match, return error */
+        /* This is x25 specific area if protocol doesn't
+         * match, return error */
         if (wp_sk(sk)->num != htons(X25_PROT))
                 return -EINVAL;
 
@@ -2163,7 +2163,7 @@ static int wanpipe_link_card (struct sock *sk)
         card->sk=sk;
         card->func=wanpipe_listen_rcv;
         sock_set_flag(sk, SOCK_ZAPPED);
- 
+
         return 0;
 }
 
@@ -2176,7 +2176,7 @@ static int wanpipe_link_card (struct sock *sk)
 
 static void wanpipe_unlink_card (struct sock *sk)
 {
-        sdla_t *card = (sdla_t*)wp_sk(sk)->card; 
+        sdla_t *card = (sdla_t*)wp_sk(sk)->card;
 
         if (card){
                 card->sk=NULL;
@@ -2202,9 +2202,9 @@ static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags)
                 printk(KERN_INFO "NO MBOX PTR !!!!!\n");
                 return -EINVAL;
         }
-        
+
         /* This is x25 specific area if protocol doesn't
-         * match, return error */
+         * match, return error */
         if (wp->num != htons(X25_PROT))
                 return -EINVAL;
 
@@ -2217,17 +2217,17 @@ static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags)
                                 err = -EHOSTDOWN;
                                 break;
                         }
-                        
+
                         err = execute_command(sk,X25_ACCEPT_CALL,0);
                         if (err < 0)
                                 break;
 
-                        /* Update. Mar6 2000. 
-                         * Do not set the sock lcn number here, since
-                         * it is done in wanpipe_listen_rcv(). 
-                         */ 
-                        if (sk->sk_state == WANSOCK_CONNECTED) {
-                                wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn;     
+                        /* Update. Mar6 2000.
+                         * Do not set the sock lcn number here, since
+                         * it is done in wanpipe_listen_rcv().
+                         */
+                        if (sk->sk_state == WANSOCK_CONNECTED) {
+                                wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn;
                                 DBG_PRINTK(KERN_INFO "\nwansock: Accept OK %i\n",
                                         wp->lcn);
                                 err = 0;
@@ -2249,15 +2249,15 @@ static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags)
 
 
                         /* Check if data buffers are pending for transmission,
-                         * if so, check whether user wants to wait until data
-                         * is transmitted, or clear a call and drop packets */
-                          
+                         * if so, check whether user wants to wait until data
+                         * is transmitted, or clear a call and drop packets */
+
                         if (atomic_read(&sk->sk_wmem_alloc) ||
                             check_driver_busy(sk)) {
-                                mbox_cmd_t *mbox = wp->mbox;
+                                mbox_cmd_t *mbox = wp->mbox;
                                 if (mbox->cmd.qdm & 0x80){
                                         mbox->cmd.result = 0x35;
-                                        err = -EAGAIN;  
+                                        err = -EAGAIN;
                                         break;
                                 }
                         }
@@ -2286,15 +2286,15 @@ static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags)
 
 
                         /* Check if data buffers are pending for transmission,
-                         * if so, check whether user wants to wait until data
-                         * is transmitted, or reset a call and drop packets */
-                          
+                         * if so, check whether user wants to wait until data
+                         * is transmitted, or reset a call and drop packets */
+
                         if (atomic_read(&sk->sk_wmem_alloc) ||
                             check_driver_busy(sk)) {
-                                mbox_cmd_t *mbox = wp->mbox;
+                                mbox_cmd_t *mbox = wp->mbox;
                                 if (mbox->cmd.qdm & 0x80){
                                         mbox->cmd.result = 0x35;
-                                        err = -EAGAIN;  
+                                        err = -EAGAIN;
                                         break;
                                 }
                         }
@@ -2316,7 +2316,7 @@ static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags)
 
                         if (sk->sk_state == WANSOCK_CONNECTED) {
 
-                                wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn;     
+                                wp->lcn = ((mbox_cmd_t*)wp->mbox)->cmd.lcn;
 
                                 DBG_PRINTK(KERN_INFO "\nwansock: PLACE CALL OK %i\n",
                                         wp->lcn);
@@ -2337,7 +2337,7 @@ static int wanpipe_exec_cmd(struct sock *sk, int cmd, unsigned int flags)
 
                         break;
 
-                default: 
+                default:
                         return -EINVAL;
         }
 
@@ -2364,9 +2364,9 @@ static int check_driver_busy (struct sock *sk)
 /*======================================================================
  * wanpipe_accept
  *
- *      ACCEPT() System call.   X25API Specific function. 
- *      For each incoming call, create a new socket and 
- *      return it to the user.  
+ *      ACCEPT() System call.   X25API Specific function.
+ *      For each incoming call, create a new socket and
+ *      return it to the user.
  *=====================================================================*/
 
 static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags)
@@ -2378,10 +2378,10 @@ static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags
         int err=0;
 
         if (newsock->sk != NULL){
-                wanpipe_kill_sock_accept(newsock->sk);  
+                wanpipe_kill_sock_accept(newsock->sk);
                 newsock->sk=NULL;
         }
-        
+
         if ((sk = sock->sk) == NULL)
                 return -EINVAL;
 
@@ -2410,10 +2410,10 @@ static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags
         }
         current->state = TASK_RUNNING;
         remove_wait_queue(sk->sk_sleep,&wait);
-        
+
         if (err != 0)
                 return err;
-        
+
         newsk = get_newsk_from_skb(skb);
         if (!newsk){
                 return -EINVAL;
@@ -2431,7 +2431,7 @@ static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags
         /* Now attach up the new socket */
         sk->sk_ack_backlog--;
         newsock->sk = newsk;
-        
+
         kfree_skb(skb);
 
         DBG_PRINTK(KERN_INFO "\nwansock: ACCEPT Got LCN %i\n",
@@ -2449,16 +2449,16 @@ static int wanpipe_accept(struct socket *sock, struct socket *newsock, int flags
 struct sock * get_newsk_from_skb (struct sk_buff *skb)
 {
         struct net_device *dev = skb->dev;
-        wanpipe_common_t *chan; 
+        wanpipe_common_t *chan;
 
         if (!dev){
                 return NULL;
         }
-                
+
         if ((chan = dev->priv) == NULL){
                 return NULL;
         }
-                
+
         if (!chan->sk){
                 return NULL;
         }
@@ -2470,7 +2470,7 @@ struct sock * get_newsk_from_skb (struct sk_buff *skb)
  *
  *      CONNECT() System Call. X25API specific function
  *      Check the state of the sock, and execute PLACE_CALL command.
- *      Connect can ether block or return without waiting for connection, 
+ *      Connect can ether block or return without waiting for connection,
  *      if specified by user.
  *=====================================================================*/
 
@@ -2492,7 +2492,7 @@ static int wanpipe_connect(struct socket *sock, struct sockaddr *uaddr, int addr
                 return -ECONNREFUSED;
         }
 
-        sk->sk_state = WANSOCK_DISCONNECTED;    
+        sk->sk_state = WANSOCK_DISCONNECTED;
         sock->state  = SS_UNCONNECTED;
 
         if (addr_len != sizeof(struct wan_sockaddr_ll))
@@ -2505,7 +2505,7 @@ static int wanpipe_connect(struct socket *sock, struct sockaddr *uaddr, int addr
                 return -ENETUNREACH;
 
         dev_put(dev);
-        
+
         if (!sock_flag(sk, SOCK_ZAPPED)) /* Must bind first - autobinding does not work */
                 return -EINVAL;
 
@@ -2534,7 +2534,7 @@ static int wanpipe_connect(struct socket *sock, struct sockaddr *uaddr, int addr
 
         if (sk->sk_state != WANSOCK_CONNECTED) {
                 sock->state = SS_UNCONNECTED;
-                return -ECONNREFUSED; 
+                return -ECONNREFUSED;
         }
 
         sock->state = SS_CONNECTED;
@@ -2549,10 +2549,10 @@ const struct proto_ops wanpipe_ops = {
         .connect =      wanpipe_connect,
         .socketpair =   sock_no_socketpair,
         .accept =       wanpipe_accept,
-        .getname =      wanpipe_getname, 
+        .getname =      wanpipe_getname,
         .poll =         wanpipe_poll,
         .ioctl =        wanpipe_ioctl,
-        .listen =       wanpipe_listen, 
+        .listen =       wanpipe_listen,
         .shutdown =     sock_no_shutdown,
         .setsockopt =   sock_no_setsockopt,
         .getsockopt =   sock_no_getsockopt,