Merge branch 'perf/core' into perf/uprobes

Merge in latest upstream (and the latest perf development tree),
to prepare for tooling changes, and also to pick up v3.4 MM
changes that the uprobes code needs to take care of.

Signed-off-by: Ingo Molnar <mingo@kernel.org>

1 files changed, 403 insertions, 403 deletions

diff --git a/drivers/isdn/act2000/module.c b/drivers/isdn/act2000/module.c
index 05ed72c4cf5..b4147c0b14b 100644
--- a/drivers/isdn/act2000/module.c
+++ b/drivers/isdn/act2000/module.c
@@ -4,7 +4,7 @@
  *
  * Author       Fritz Elfert
  * Copyright    by Fritz Elfert      <fritz@isdn4linux.de>
- * 
+ *
  * This software may be used and distributed according to the terms
  * of the GNU General Public License, incorporated herein by reference.
  *
@@ -21,8 +21,8 @@
 
 static unsigned short act2000_isa_ports[] =
 {
-        0x0200, 0x0240, 0x0280, 0x02c0, 0x0300, 0x0340, 0x0380,
-        0xcfe0, 0xcfa0, 0xcf60, 0xcf20, 0xcee0, 0xcea0, 0xce60,
+	0x0200, 0x0240, 0x0280, 0x02c0, 0x0300, 0x0340, 0x0380,
+	0xcfe0, 0xcfa0, 0xcf60, 0xcf20, 0xcee0, 0xcea0, 0xce60,
 };
 
 static act2000_card *cards = (act2000_card *) NULL;
@@ -33,14 +33,14 @@ static int   act_port = -1;  /* -1 = Autoprobe  */
 static int   act_irq  = -1;
 static char *act_id   = "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0";
 
-MODULE_DESCRIPTION(       "ISDN4Linux: Driver for IBM Active 2000 ISDN card");
-MODULE_AUTHOR(            "Fritz Elfert");
-MODULE_LICENSE(           "GPL");
+MODULE_DESCRIPTION("ISDN4Linux: Driver for IBM Active 2000 ISDN card");
+MODULE_AUTHOR("Fritz Elfert");
+MODULE_LICENSE("GPL");
 MODULE_PARM_DESC(act_bus, "BusType of first card, 1=ISA, 2=MCA, 3=PCMCIA, currently only ISA");
 MODULE_PARM_DESC(membase, "Base port address of first card");
 MODULE_PARM_DESC(act_irq, "IRQ of first card");
-MODULE_PARM_DESC(act_id,  "ID-String of first card");
-module_param(act_bus,  int, 0);
+MODULE_PARM_DESC(act_id, "ID-String of first card");
+module_param(act_bus, int, 0);
 module_param(act_port, int, 0);
 module_param(act_irq, int, 0);
 module_param(act_id, charp, 0);
@@ -51,7 +51,7 @@ static act2000_chan *
 find_channel(act2000_card *card, int channel)
 {
 	if ((channel >= 0) && (channel < ACT2000_BCH))
-        	return &(card->bch[channel]);
+		return &(card->bch[channel]);
 	printk(KERN_WARNING "act2000: Invalid channel %d\n", channel);
 	return NULL;
 }
@@ -84,7 +84,7 @@ act2000_clear_msn(act2000_card *card)
 static __u16
 act2000_find_msn(act2000_card *card, char *msn, int ia5)
 {
-        struct msn_entry *p = card->msn_list;
+	struct msn_entry *p = card->msn_list;
 	__u8 eaz = '0';
 
 	while (p) {
@@ -107,14 +107,14 @@ act2000_find_msn(act2000_card *card, char *msn, int ia5)
 char *
 act2000_find_eaz(act2000_card *card, char eaz)
 {
-        struct msn_entry *p = card->msn_list;
+	struct msn_entry *p = card->msn_list;
 
 	while (p) {
 		if (p->eaz == eaz)
-			return(p->msn);
+			return (p->msn);
 		p = p->next;
 	}
-	return("\0");
+	return ("\0");
 }
 
 /*
@@ -126,11 +126,11 @@ act2000_find_eaz(act2000_card *card, char eaz)
 static int
 act2000_set_msn(act2000_card *card, char *eazmsn)
 {
-        struct msn_entry *p = card->msn_list;
-        struct msn_entry *q = NULL;
+	struct msn_entry *p = card->msn_list;
+	struct msn_entry *q = NULL;
 	unsigned long flags;
 	int i;
-	
+
 	if (!strlen(eazmsn))
 		return 0;
 	if (strlen(eazmsn) > 16)
@@ -138,7 +138,7 @@ act2000_set_msn(act2000_card *card, char *eazmsn)
 	for (i = 0; i < strlen(eazmsn); i++)
 		if (!isdigit(eazmsn[i]))
 			return -EINVAL;
-        if (strlen(eazmsn) == 1) {
+	if (strlen(eazmsn) == 1) {
 		/* Delete a single MSN */
 		while (p) {
 			if (p->eaz == eazmsn[0]) {
@@ -158,7 +158,7 @@ act2000_set_msn(act2000_card *card, char *eazmsn)
 			p = p->next;
 		}
 		return 0;
-        }
+	}
 	/* Add a single MSN */
 	while (p) {
 		/* Found in list, replace MSN */
@@ -198,14 +198,14 @@ act2000_transmit(struct work_struct *work)
 		container_of(work, struct act2000_card, snd_tq);
 
 	switch (card->bus) {
-		case ACT2000_BUS_ISA:
-			act2000_isa_send(card);
-			break;
-		case ACT2000_BUS_PCMCIA:
-		case ACT2000_BUS_MCA:
-		default:
-			printk(KERN_WARNING
-			       "act2000_transmit: Illegal bustype %d\n", card->bus);
+	case ACT2000_BUS_ISA:
+		act2000_isa_send(card);
+		break;
+	case ACT2000_BUS_PCMCIA:
+	case ACT2000_BUS_MCA:
+	default:
+		printk(KERN_WARNING
+		       "act2000_transmit: Illegal bustype %d\n", card->bus);
 	}
 }
 
@@ -216,221 +216,221 @@ act2000_receive(struct work_struct *work)
 		container_of(work, struct act2000_card, poll_tq);
 
 	switch (card->bus) {
-		case ACT2000_BUS_ISA:
-			act2000_isa_receive(card);
-			break;
-		case ACT2000_BUS_PCMCIA:
-		case ACT2000_BUS_MCA:
-		default:
-			printk(KERN_WARNING
-			       "act2000_receive: Illegal bustype %d\n", card->bus);
+	case ACT2000_BUS_ISA:
+		act2000_isa_receive(card);
+		break;
+	case ACT2000_BUS_PCMCIA:
+	case ACT2000_BUS_MCA:
+	default:
+		printk(KERN_WARNING
+		       "act2000_receive: Illegal bustype %d\n", card->bus);
 	}
 }
 
 static void
 act2000_poll(unsigned long data)
 {
-	act2000_card * card = (act2000_card *)data;
+	act2000_card *card = (act2000_card *)data;
 	unsigned long flags;
 
 	act2000_receive(&card->poll_tq);
 	spin_lock_irqsave(&card->lock, flags);
-	mod_timer(&card->ptimer, jiffies+3);
+	mod_timer(&card->ptimer, jiffies + 3);
 	spin_unlock_irqrestore(&card->lock, flags);
 }
 
 static int
-act2000_command(act2000_card * card, isdn_ctrl * c)
+act2000_command(act2000_card *card, isdn_ctrl *c)
 {
-        ulong a;
-        act2000_chan *chan;
+	ulong a;
+	act2000_chan *chan;
 	act2000_cdef cdef;
 	isdn_ctrl cmd;
 	char tmp[17];
 	int ret;
 	unsigned long flags;
 	void __user *arg;
- 
-        switch (c->command) {
-		case ISDN_CMD_IOCTL:
-			memcpy(&a, c->parm.num, sizeof(ulong));
-			arg = (void __user *)a;
-			switch (c->arg) {
-				case ACT2000_IOCTL_LOADBOOT:
-					switch (card->bus) {
-						case ACT2000_BUS_ISA:
-							ret = act2000_isa_download(card,
-									   arg);
-							if (!ret) {
-								card->flags |= ACT2000_FLAGS_LOADED;
-								if (!(card->flags & ACT2000_FLAGS_IVALID)) {
-									card->ptimer.expires = jiffies + 3;
-									card->ptimer.function = act2000_poll;
-									card->ptimer.data = (unsigned long)card;
-									add_timer(&card->ptimer);
-								}
-								actcapi_manufacturer_req_errh(card);
-							}
-							break;
-						default:
-							printk(KERN_WARNING
-							       "act2000: Illegal BUS type %d\n",
-							       card->bus);
-							ret = -EIO;
+
+	switch (c->command) {
+	case ISDN_CMD_IOCTL:
+		memcpy(&a, c->parm.num, sizeof(ulong));
+		arg = (void __user *)a;
+		switch (c->arg) {
+		case ACT2000_IOCTL_LOADBOOT:
+			switch (card->bus) {
+			case ACT2000_BUS_ISA:
+				ret = act2000_isa_download(card,
+							   arg);
+				if (!ret) {
+					card->flags |= ACT2000_FLAGS_LOADED;
+					if (!(card->flags & ACT2000_FLAGS_IVALID)) {
+						card->ptimer.expires = jiffies + 3;
+						card->ptimer.function = act2000_poll;
+						card->ptimer.data = (unsigned long)card;
+						add_timer(&card->ptimer);
 					}
-					return ret;
-				case ACT2000_IOCTL_SETPROTO:
-					card->ptype = a?ISDN_PTYPE_EURO:ISDN_PTYPE_1TR6;
-					if (!(card->flags & ACT2000_FLAGS_RUNNING))
-						return 0;
-					actcapi_manufacturer_req_net(card);
-					return 0;
-				case ACT2000_IOCTL_SETMSN:
-					if (copy_from_user(tmp, arg,
-							   sizeof(tmp)))
-						return -EFAULT;
-					if ((ret = act2000_set_msn(card, tmp)))
-						return ret;
-					if (card->flags & ACT2000_FLAGS_RUNNING)
-						return(actcapi_manufacturer_req_msn(card));
-					return 0;
-				case ACT2000_IOCTL_ADDCARD:
-					if (copy_from_user(&cdef, arg,
-							   sizeof(cdef)))
-						return -EFAULT;
-					if (act2000_addcard(cdef.bus, cdef.port, cdef.irq, cdef.id))
-						return -EIO;
-					return 0;
-				case ACT2000_IOCTL_TEST:
-					if (!(card->flags & ACT2000_FLAGS_RUNNING))
-						return -ENODEV;
-					return 0;
-				default:
-					return -EINVAL;
-			}
-			break;
-		case ISDN_CMD_DIAL:
-			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
+					actcapi_manufacturer_req_errh(card);
+				}
 				break;
-			spin_lock_irqsave(&card->lock, flags);
-			if (chan->fsm_state != ACT2000_STATE_NULL) {
-				spin_unlock_irqrestore(&card->lock, flags);
-				printk(KERN_WARNING "Dial on channel with state %d\n",
-					chan->fsm_state);
-				return -EBUSY;
-			}
-			if (card->ptype == ISDN_PTYPE_EURO)
-				tmp[0] = act2000_find_msn(card, c->parm.setup.eazmsn, 1);
-			else
-				tmp[0] = c->parm.setup.eazmsn[0];
-			chan->fsm_state = ACT2000_STATE_OCALL;
-			chan->callref = 0xffff;
-			spin_unlock_irqrestore(&card->lock, flags);
-			ret = actcapi_connect_req(card, chan, c->parm.setup.phone,
-						  tmp[0], c->parm.setup.si1,
-						  c->parm.setup.si2);
-			if (ret) {
-				cmd.driver = card->myid;
-				cmd.command = ISDN_STAT_DHUP;
-				cmd.arg &= 0x0f;
-				card->interface.statcallb(&cmd);
+			default:
+				printk(KERN_WARNING
+				       "act2000: Illegal BUS type %d\n",
+				       card->bus);
+				ret = -EIO;
 			}
 			return ret;
-		case ISDN_CMD_ACCEPTD:
-			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
-				break;
-			if (chan->fsm_state == ACT2000_STATE_ICALL)
-				actcapi_select_b2_protocol_req(card, chan);
-			return 0;
-		case ISDN_CMD_ACCEPTB:
-			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			return 0;
-		case ISDN_CMD_HANGUP:
+		case ACT2000_IOCTL_SETPROTO:
+			card->ptype = a ? ISDN_PTYPE_EURO : ISDN_PTYPE_1TR6;
 			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
-				break;
-			switch (chan->fsm_state) {
-				case ACT2000_STATE_ICALL:
-				case ACT2000_STATE_BSETUP:
-					actcapi_connect_resp(card, chan, 0x15);
-					break;
-				case ACT2000_STATE_ACTIVE:
-					actcapi_disconnect_b3_req(card, chan);
-					break;
-			}
+				return 0;
+			actcapi_manufacturer_req_net(card);
 			return 0;
-		case ISDN_CMD_SETEAZ:
-			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
-				break;
-			if (strlen(c->parm.num)) {
-				if (card->ptype == ISDN_PTYPE_EURO) {
-					chan->eazmask = act2000_find_msn(card, c->parm.num, 0);
-				}
-				if (card->ptype == ISDN_PTYPE_1TR6) {
-					int i;
-					chan->eazmask = 0;
-					for (i = 0; i < strlen(c->parm.num); i++)
-						if (isdigit(c->parm.num[i]))
-							chan->eazmask |= (1 << (c->parm.num[i] - '0'));
-				}
-			} else
-				chan->eazmask = 0x3ff;
-			actcapi_listen_req(card);
+		case ACT2000_IOCTL_SETMSN:
+			if (copy_from_user(tmp, arg,
+					   sizeof(tmp)))
+				return -EFAULT;
+			if ((ret = act2000_set_msn(card, tmp)))
+				return ret;
+			if (card->flags & ACT2000_FLAGS_RUNNING)
+				return (actcapi_manufacturer_req_msn(card));
 			return 0;
-		case ISDN_CMD_CLREAZ:
-			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
-				break;
-			chan->eazmask = 0;
-			actcapi_listen_req(card);
+		case ACT2000_IOCTL_ADDCARD:
+			if (copy_from_user(&cdef, arg,
+					   sizeof(cdef)))
+				return -EFAULT;
+			if (act2000_addcard(cdef.bus, cdef.port, cdef.irq, cdef.id))
+				return -EIO;
 			return 0;
-		case ISDN_CMD_SETL2:
+		case ACT2000_IOCTL_TEST:
 			if (!(card->flags & ACT2000_FLAGS_RUNNING))
 				return -ENODEV;
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
-				break;
-			chan->l2prot = (c->arg >> 8);
 			return 0;
-		case ISDN_CMD_SETL3:
-			if (!(card->flags & ACT2000_FLAGS_RUNNING))
-				return -ENODEV;
-			if ((c->arg >> 8) != ISDN_PROTO_L3_TRANS) {
-				printk(KERN_WARNING "L3 protocol unknown\n");
-				return -1;
+		default:
+			return -EINVAL;
+		}
+		break;
+	case ISDN_CMD_DIAL:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		spin_lock_irqsave(&card->lock, flags);
+		if (chan->fsm_state != ACT2000_STATE_NULL) {
+			spin_unlock_irqrestore(&card->lock, flags);
+			printk(KERN_WARNING "Dial on channel with state %d\n",
+			       chan->fsm_state);
+			return -EBUSY;
+		}
+		if (card->ptype == ISDN_PTYPE_EURO)
+			tmp[0] = act2000_find_msn(card, c->parm.setup.eazmsn, 1);
+		else
+			tmp[0] = c->parm.setup.eazmsn[0];
+		chan->fsm_state = ACT2000_STATE_OCALL;
+		chan->callref = 0xffff;
+		spin_unlock_irqrestore(&card->lock, flags);
+		ret = actcapi_connect_req(card, chan, c->parm.setup.phone,
+					  tmp[0], c->parm.setup.si1,
+					  c->parm.setup.si2);
+		if (ret) {
+			cmd.driver = card->myid;
+			cmd.command = ISDN_STAT_DHUP;
+			cmd.arg &= 0x0f;
+			card->interface.statcallb(&cmd);
+		}
+		return ret;
+	case ISDN_CMD_ACCEPTD:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		if (chan->fsm_state == ACT2000_STATE_ICALL)
+			actcapi_select_b2_protocol_req(card, chan);
+		return 0;
+	case ISDN_CMD_ACCEPTB:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		return 0;
+	case ISDN_CMD_HANGUP:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		switch (chan->fsm_state) {
+		case ACT2000_STATE_ICALL:
+		case ACT2000_STATE_BSETUP:
+			actcapi_connect_resp(card, chan, 0x15);
+			break;
+		case ACT2000_STATE_ACTIVE:
+			actcapi_disconnect_b3_req(card, chan);
+			break;
+		}
+		return 0;
+	case ISDN_CMD_SETEAZ:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		if (strlen(c->parm.num)) {
+			if (card->ptype == ISDN_PTYPE_EURO) {
+				chan->eazmask = act2000_find_msn(card, c->parm.num, 0);
 			}
-			if (!(chan = find_channel(card, c->arg & 0x0f)))
-				break;
-			chan->l3prot = (c->arg >> 8);
-			return 0;
-        }
-	
-        return -EINVAL;
+			if (card->ptype == ISDN_PTYPE_1TR6) {
+				int i;
+				chan->eazmask = 0;
+				for (i = 0; i < strlen(c->parm.num); i++)
+					if (isdigit(c->parm.num[i]))
+						chan->eazmask |= (1 << (c->parm.num[i] - '0'));
+			}
+		} else
+			chan->eazmask = 0x3ff;
+		actcapi_listen_req(card);
+		return 0;
+	case ISDN_CMD_CLREAZ:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		chan->eazmask = 0;
+		actcapi_listen_req(card);
+		return 0;
+	case ISDN_CMD_SETL2:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		chan->l2prot = (c->arg >> 8);
+		return 0;
+	case ISDN_CMD_SETL3:
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		if ((c->arg >> 8) != ISDN_PROTO_L3_TRANS) {
+			printk(KERN_WARNING "L3 protocol unknown\n");
+			return -1;
+		}
+		if (!(chan = find_channel(card, c->arg & 0x0f)))
+			break;
+		chan->l3prot = (c->arg >> 8);
+		return 0;
+	}
+
+	return -EINVAL;
 }
 
 static int
 act2000_sendbuf(act2000_card *card, int channel, int ack, struct sk_buff *skb)
 {
-        struct sk_buff *xmit_skb;
-        int len;
-        act2000_chan *chan;
+	struct sk_buff *xmit_skb;
+	int len;
+	act2000_chan *chan;
 	actcapi_msg *msg;
 
-        if (!(chan = find_channel(card, channel)))
+	if (!(chan = find_channel(card, channel)))
+		return -1;
+	if (chan->fsm_state != ACT2000_STATE_ACTIVE)
 		return -1;
-        if (chan->fsm_state != ACT2000_STATE_ACTIVE)
-                return -1;
-        len = skb->len;
-        if ((chan->queued + len) >= ACT2000_MAX_QUEUED)
-                return 0;
+	len = skb->len;
+	if ((chan->queued + len) >= ACT2000_MAX_QUEUED)
+		return 0;
 	if (!len)
 		return 0;
 	if (skb_headroom(skb) < 19) {
@@ -462,28 +462,28 @@ act2000_sendbuf(act2000_card *card, int channel, int ack, struct sk_buff *skb)
 	msg->msg.data_b3_req.fakencci = MAKE_NCCI(chan->plci, 0, chan->ncci);
 	msg->msg.data_b3_req.flags = ack; /* Will be set to 0 on actual sending */
 	actcapi_debug_msg(xmit_skb, 1);
-        chan->queued += len;
+	chan->queued += len;
 	skb_queue_tail(&card->sndq, xmit_skb);
 	act2000_schedule_tx(card);
-        return len;
+	return len;
 }
 
 
 /* Read the Status-replies from the Interface */
 static int
-act2000_readstatus(u_char __user * buf, int len, act2000_card * card)
+act2000_readstatus(u_char __user *buf, int len, act2000_card *card)
 {
-        int count;
-        u_char __user *p;
+	int count;
+	u_char __user *p;
 
-        for (p = buf, count = 0; count < len; p++, count++) {
-                if (card->status_buf_read == card->status_buf_write)
-                        return count;
+	for (p = buf, count = 0; count < len; p++, count++) {
+		if (card->status_buf_read == card->status_buf_write)
+			return count;
 		put_user(*card->status_buf_read++, p);
-                if (card->status_buf_read > card->status_buf_end)
-                        card->status_buf_read = card->status_buf;
-        }
-        return count;
+		if (card->status_buf_read > card->status_buf_end)
+			card->status_buf_read = card->status_buf;
+	}
+	return count;
 }
 
 /*
@@ -492,75 +492,75 @@ act2000_readstatus(u_char __user * buf, int len, act2000_card * card)
 static inline act2000_card *
 act2000_findcard(int driverid)
 {
-        act2000_card *p = cards;
-
-        while (p) {
-                if (p->myid == driverid)
-                        return p;
-                p = p->next;
-        }
-        return (act2000_card *) 0;
+	act2000_card *p = cards;
+
+	while (p) {
+		if (p->myid == driverid)
+			return p;
+		p = p->next;
+	}
+	return (act2000_card *) 0;
 }
 
 /*
  * Wrapper functions for interface to linklevel
  */
 static int
-if_command(isdn_ctrl * c)
+if_command(isdn_ctrl *c)
 {
-        act2000_card *card = act2000_findcard(c->driver);
-
-        if (card)
-                return (act2000_command(card, c));
-        printk(KERN_ERR
-             "act2000: if_command %d called with invalid driverId %d!\n",
-               c->command, c->driver);
-        return -ENODEV;
+	act2000_card *card = act2000_findcard(c->driver);
+
+	if (card)
+		return (act2000_command(card, c));
+	printk(KERN_ERR
+	       "act2000: if_command %d called with invalid driverId %d!\n",
+	       c->command, c->driver);
+	return -ENODEV;
 }
 
 static int
 if_writecmd(const u_char __user *buf, int len, int id, int channel)
 {
-        act2000_card *card = act2000_findcard(id);
-
-        if (card) {
-                if (!(card->flags & ACT2000_FLAGS_RUNNING))
-                        return -ENODEV;
-                return (len);
-        }
-        printk(KERN_ERR
-               "act2000: if_writecmd called with invalid driverId!\n");
-        return -ENODEV;
+	act2000_card *card = act2000_findcard(id);
+
+	if (card) {
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		return (len);
+	}
+	printk(KERN_ERR
+	       "act2000: if_writecmd called with invalid driverId!\n");
+	return -ENODEV;
 }
 
 static int
-if_readstatus(u_char __user * buf, int len, int id, int channel)
+if_readstatus(u_char __user *buf, int len, int id, int channel)
 {
-        act2000_card *card = act2000_findcard(id);
-	
-        if (card) {
-                if (!(card->flags & ACT2000_FLAGS_RUNNING))
-                        return -ENODEV;
-                return (act2000_readstatus(buf, len, card));
-        }
-        printk(KERN_ERR
-               "act2000: if_readstatus called with invalid driverId!\n");
-        return -ENODEV;
+	act2000_card *card = act2000_findcard(id);
+
+	if (card) {
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
+		return (act2000_readstatus(buf, len, card));
+	}
+	printk(KERN_ERR
+	       "act2000: if_readstatus called with invalid driverId!\n");
+	return -ENODEV;
 }
 
 static int
 if_sendbuf(int id, int channel, int ack, struct sk_buff *skb)
 {
-        act2000_card *card = act2000_findcard(id);
-	
-        if (card) {
-                if (!(card->flags & ACT2000_FLAGS_RUNNING))
-                        return -ENODEV;
+	act2000_card *card = act2000_findcard(id);
+
+	if (card) {
+		if (!(card->flags & ACT2000_FLAGS_RUNNING))
+			return -ENODEV;
 		return (act2000_sendbuf(card, channel, ack, skb));
-        }
-        printk(KERN_ERR
-               "act2000: if_sendbuf called with invalid driverId!\n");
-        return -ENODEV;
+	}
+	printk(KERN_ERR
+	       "act2000: if_sendbuf called with invalid driverId!\n");
+	return -ENODEV;
 }
 
 
@@ -572,14 +572,14 @@ static void
 act2000_alloccard(int bus, int port, int irq, char *id)
 {
 	int i;
-        act2000_card *card;
-        if (!(card = kzalloc(sizeof(act2000_card), GFP_KERNEL))) {
-                printk(KERN_WARNING
+	act2000_card *card;
+	if (!(card = kzalloc(sizeof(act2000_card), GFP_KERNEL))) {
+		printk(KERN_WARNING
 		       "act2000: (%s) Could not allocate card-struct.\n", id);
-                return;
-        }
-        spin_lock_init(&card->lock);
-        spin_lock_init(&card->mnlock);
+		return;
+	}
+	spin_lock_init(&card->lock);
+	spin_lock_init(&card->mnlock);
 	skb_queue_head_init(&card->sndq);
 	skb_queue_head_init(&card->rcvq);
 	skb_queue_head_init(&card->ackq);
@@ -588,82 +588,82 @@ act2000_alloccard(int bus, int port, int irq, char *id)
 	INIT_WORK(&card->poll_tq, act2000_receive);
 	init_timer(&card->ptimer);
 	card->interface.owner = THIS_MODULE;
-        card->interface.channels = ACT2000_BCH;
-        card->interface.maxbufsize = 4000;
-        card->interface.command = if_command;
-        card->interface.writebuf_skb = if_sendbuf;
-        card->interface.writecmd = if_writecmd;
-        card->interface.readstat = if_readstatus;
-        card->interface.features =
+	card->interface.channels = ACT2000_BCH;
+	card->interface.maxbufsize = 4000;
+	card->interface.command = if_command;
+	card->interface.writebuf_skb = if_sendbuf;
+	card->interface.writecmd = if_writecmd;
+	card->interface.readstat = if_readstatus;
+	card->interface.features =
 		ISDN_FEATURE_L2_X75I |
 		ISDN_FEATURE_L2_HDLC |
 		ISDN_FEATURE_L3_TRANS |
 		ISDN_FEATURE_P_UNKNOWN;
-        card->interface.hl_hdrlen = 20;
-        card->ptype = ISDN_PTYPE_EURO;
-        strlcpy(card->interface.id, id, sizeof(card->interface.id));
-        for (i=0; i<ACT2000_BCH; i++) {
-                card->bch[i].plci = 0x8000;
-                card->bch[i].ncci = 0x8000;
-                card->bch[i].l2prot = ISDN_PROTO_L2_X75I;
-                card->bch[i].l3prot = ISDN_PROTO_L3_TRANS;
-        }
-        card->myid = -1;
-        card->bus = bus;
-        card->port = port;
-        card->irq = irq;
-        card->next = cards;
-        cards = card;
+	card->interface.hl_hdrlen = 20;
+	card->ptype = ISDN_PTYPE_EURO;
+	strlcpy(card->interface.id, id, sizeof(card->interface.id));
+	for (i = 0; i < ACT2000_BCH; i++) {
+		card->bch[i].plci = 0x8000;
+		card->bch[i].ncci = 0x8000;
+		card->bch[i].l2prot = ISDN_PROTO_L2_X75I;
+		card->bch[i].l3prot = ISDN_PROTO_L3_TRANS;
+	}
+	card->myid = -1;
+	card->bus = bus;
+	card->port = port;
+	card->irq = irq;
+	card->next = cards;
+	cards = card;
 }
 
 /*
  * register card at linklevel
  */
 static int
-act2000_registercard(act2000_card * card)
+act2000_registercard(act2000_card *card)
 {
-        switch (card->bus) {
-		case ACT2000_BUS_ISA:
-			break;
-		case ACT2000_BUS_MCA:
-		case ACT2000_BUS_PCMCIA:
-		default:
-			printk(KERN_WARNING
-			       "act2000: Illegal BUS type %d\n",
-			       card->bus);
-			return -1;
-        }
-        if (!register_isdn(&card->interface)) {
-                printk(KERN_WARNING
-                       "act2000: Unable to register %s\n",
-                       card->interface.id);
-                return -1;
-        }
-        card->myid = card->interface.channels;
-        sprintf(card->regname, "act2000-isdn (%s)", card->interface.id);
-        return 0;
+	switch (card->bus) {
+	case ACT2000_BUS_ISA:
+		break;
+	case ACT2000_BUS_MCA:
+	case ACT2000_BUS_PCMCIA:
+	default:
+		printk(KERN_WARNING
+		       "act2000: Illegal BUS type %d\n",
+		       card->bus);
+		return -1;
+	}
+	if (!register_isdn(&card->interface)) {
+		printk(KERN_WARNING
+		       "act2000: Unable to register %s\n",
+		       card->interface.id);
+		return -1;
+	}
+	card->myid = card->interface.channels;
+	sprintf(card->regname, "act2000-isdn (%s)", card->interface.id);
+	return 0;
 }
 
 static void
-unregister_card(act2000_card * card)
+unregister_card(act2000_card *card)
 {
-        isdn_ctrl cmd;
+	isdn_ctrl cmd;
 
-        cmd.command = ISDN_STAT_UNLOAD;
-        cmd.driver = card->myid;
-        card->interface.statcallb(&cmd);
-        switch (card->bus) {
-		case ACT2000_BUS_ISA:
-			act2000_isa_release(card);
-			break;
-		case ACT2000_BUS_MCA:
-		case ACT2000_BUS_PCMCIA:
-		default:
-			printk(KERN_WARNING
-			       "act2000: Invalid BUS type %d\n",
-			       card->bus);
-			break;
-        }
+	cmd.command = ISDN_STAT_UNLOAD;
+	cmd.driver = card->myid;
+	card->interface.statcallb(&cmd);
+	switch (card->bus) {
+	case ACT2000_BUS_ISA:
+		act2000_isa_release(card);
+		break;
+	case ACT2000_BUS_MCA:
+	case ACT2000_BUS_PCMCIA:
+	default:
+		printk(KERN_WARNING
+		       "act2000: Invalid BUS type %d\n",
+		       card->bus);
+		break;
+	}
 }
 
 static int
@@ -690,23 +690,23 @@ act2000_addcard(int bus, int port, int irq, char *id)
 			for (i = 0; i < ARRAY_SIZE(act2000_isa_ports); i++)
 				if (act2000_isa_detect(act2000_isa_ports[i])) {
 					printk(KERN_INFO "act2000: Detected "
-						"ISA card at port 0x%x\n",
-						act2000_isa_ports[i]);
+					       "ISA card at port 0x%x\n",
+					       act2000_isa_ports[i]);
 					act2000_alloccard(bus,
-						act2000_isa_ports[i], irq, id);
+							  act2000_isa_ports[i], irq, id);
 				}
 			break;
 		case ACT2000_BUS_MCA:
 		case ACT2000_BUS_PCMCIA:
 		default:
 			printk(KERN_WARNING
-				"act2000: addcard: Invalid BUS type %d\n", bus);
+			       "act2000: addcard: Invalid BUS type %d\n", bus);
 		}
 	}
 	if (!cards)
 		return 1;
-        p = cards;
-        while (p) {
+	p = cards;
+	while (p) {
 		initialized = 0;
 		if (!p->interface.statcallb) {
 			/* Not yet registered.
@@ -714,99 +714,99 @@ act2000_addcard(int bus, int port, int irq, char *id)
 			 */
 			added++;
 			switch (p->bus) {
-				case ACT2000_BUS_ISA:
-					if (act2000_isa_detect(p->port)) {
-						if (act2000_registercard(p))
-							break;
-						if (act2000_isa_config_port(p, p->port)) {
-							printk(KERN_WARNING
-							       "act2000: Could not request port 0x%04x\n",
-							       p->port);
-							unregister_card(p);
-							p->interface.statcallb = NULL;
-							break;
-						}
-						if (act2000_isa_config_irq(p, p->irq)) {
-							printk(KERN_INFO
-							       "act2000: No IRQ available, fallback to polling\n");
-							/* Fall back to polled operation */
-							p->irq = 0;
-						}
-						printk(KERN_INFO
-						       "act2000: ISA"
-						       "-type card at port "
-						       "0x%04x ",
+			case ACT2000_BUS_ISA:
+				if (act2000_isa_detect(p->port)) {
+					if (act2000_registercard(p))
+						break;
+					if (act2000_isa_config_port(p, p->port)) {
+						printk(KERN_WARNING
+						       "act2000: Could not request port 0x%04x\n",
 						       p->port);
-						if (p->irq)
-							printk("irq %d\n", p->irq);
-						else
-							printk("polled\n");
-						initialized = 1;
+						unregister_card(p);
+						p->interface.statcallb = NULL;
+						break;
+					}
+					if (act2000_isa_config_irq(p, p->irq)) {
+						printk(KERN_INFO
+						       "act2000: No IRQ available, fallback to polling\n");
+						/* Fall back to polled operation */
+						p->irq = 0;
 					}
-					break;
-				case ACT2000_BUS_MCA:
-				case ACT2000_BUS_PCMCIA:
-				default:
-					printk(KERN_WARNING
-					       "act2000: addcard: Invalid BUS type %d\n",
-					       p->bus);
+					printk(KERN_INFO
+					       "act2000: ISA"
+					       "-type card at port "
+					       "0x%04x ",
+					       p->port);
+					if (p->irq)
+						printk("irq %d\n", p->irq);
+					else
+						printk("polled\n");
+					initialized = 1;
+				}
+				break;
+			case ACT2000_BUS_MCA:
+			case ACT2000_BUS_PCMCIA:
+			default:
+				printk(KERN_WARNING
+				       "act2000: addcard: Invalid BUS type %d\n",
+				       p->bus);
 			}
 		} else
 			/* Card already initialized */
 			initialized = 1;
-                if (initialized) {
+		if (initialized) {
 			/* Init OK, next card ... */
-                        q = p;
-                        p = p->next;
-                } else {
-                        /* Init failed, remove card from list, free memory */
-                        printk(KERN_WARNING
-                               "act2000: Initialization of %s failed\n",
-                               p->interface.id);
-                        if (q) {
-                                q->next = p->next;
-                                kfree(p);
-                                p = q->next;
-                        } else {
-                                cards = p->next;
-                                kfree(p);
-                                p = cards;
-                        }
+			q = p;
+			p = p->next;
+		} else {
+			/* Init failed, remove card from list, free memory */
+			printk(KERN_WARNING
+			       "act2000: Initialization of %s failed\n",
+			       p->interface.id);
+			if (q) {
+				q->next = p->next;
+				kfree(p);
+				p = q->next;
+			} else {
+				cards = p->next;
+				kfree(p);
+				p = cards;
+			}
 			failed++;
-                }
+		}
 	}
-        return (added - failed);
+	return (added - failed);
 }
 
 #define DRIVERNAME "IBM Active 2000 ISDN driver"
 
 static int __init act2000_init(void)
 {
-        printk(KERN_INFO "%s\n", DRIVERNAME);
-        if (!cards)
+	printk(KERN_INFO "%s\n", DRIVERNAME);
+	if (!cards)
 		act2000_addcard(act_bus, act_port, act_irq, act_id);
-        if (!cards)
-                printk(KERN_INFO "act2000: No cards defined yet\n");
-        return 0;
+	if (!cards)
+		printk(KERN_INFO "act2000: No cards defined yet\n");
+	return 0;
 }
 
 static void __exit act2000_exit(void)
 {
-        act2000_card *card = cards;
-        act2000_card *last;
-        while (card) {
-                unregister_card(card);
+	act2000_card *card = cards;
+	act2000_card *last;
+	while (card) {
+		unregister_card(card);
 		del_timer(&card->ptimer);
-                card = card->next;
-        }
-        card = cards;
-        while (card) {
-                last = card;
-                card = card->next;
+		card = card->next;
+	}
+	card = cards;
+	while (card) {
+		last = card;
+		card = card->next;
 		act2000_clear_msn(last);
-                kfree(last);
-        }
-        printk(KERN_INFO "%s unloaded\n", DRIVERNAME);
+		kfree(last);
+	}
+	printk(KERN_INFO "%s unloaded\n", DRIVERNAME);
 }
 
 module_init(act2000_init);