Merge branch 'linus' into x86/urgent

58 files changed, 1840 insertions, 1970 deletions

diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 6bff9d87dc57..e991dc85f2fb 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -762,7 +762,7 @@ static int cy_next_channel;	/* next minor available */
 /*
  * This is used to look up the divisor speeds and the timeouts
  * We're normally limited to 15 distinct baud rates.  The extra
- * are accessed via settings in info->flags.
+ * are accessed via settings in info->port.flags.
  *      0,     1,     2,     3,     4,     5,     6,     7,     8,     9,
  *     10,    11,    12,    13,    14,    15,    16,    17,    18,    19,
  *                                               HI            VHI
@@ -1003,7 +1003,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
 	cy_writeb(base_addr + (CyCAR << index), save_xir);
 
 	/* if there is nowhere to put the data, discard it */
-	if (info->tty == NULL) {
+	if (info->port.tty == NULL) {
 		if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
 				CyIVRRxEx) {	/* exception */
 			data = readb(base_addr + (CyRDSR << index));
@@ -1015,7 +1015,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
 		goto end;
 	}
 	/* there is an open port for this data */
-	tty = info->tty;
+	tty = info->port.tty;
 	if ((readb(base_addr + (CyRIVR << index)) & CyIVRMask) ==
 			CyIVRRxEx) {	/* exception */
 		data = readb(base_addr + (CyRDSR << index));
@@ -1041,7 +1041,7 @@ static void cyy_chip_rx(struct cyclades_card *cinfo, int chip,
 						readb(base_addr + (CyRDSR <<
 							index)), TTY_BREAK);
 					info->icount.rx++;
-					if (info->flags & ASYNC_SAK)
+					if (info->port.flags & ASYNC_SAK)
 						do_SAK(tty);
 				} else if (data & CyFRAME) {
 					tty_insert_flip_char(tty,
@@ -1145,7 +1145,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
 		goto end;
 	}
 	info = &cinfo->ports[channel + chip * 4];
-	if (info->tty == NULL) {
+	if (info->port.tty == NULL) {
 		cy_writeb(base_addr + (CySRER << index),
 			  readb(base_addr + (CySRER << index)) & ~CyTxRdy);
 		goto end;
@@ -1190,13 +1190,13 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
 			}
 			goto done;
 		}
-		if (info->xmit_buf == NULL) {
+		if (info->port.xmit_buf == NULL) {
 			cy_writeb(base_addr + (CySRER << index),
 				readb(base_addr + (CySRER << index)) &
 					~CyTxRdy);
 			goto done;
 		}
-		if (info->tty->stopped || info->tty->hw_stopped) {
+		if (info->port.tty->stopped || info->port.tty->hw_stopped) {
 			cy_writeb(base_addr + (CySRER << index),
 				readb(base_addr + (CySRER << index)) &
 					~CyTxRdy);
@@ -1211,7 +1211,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
 		 * character. This is necessary because there may not be room
 		 * for the two chars needed to send a NULL.)
 		 */
-		outch = info->xmit_buf[info->xmit_tail];
+		outch = info->port.xmit_buf[info->xmit_tail];
 		if (outch) {
 			info->xmit_cnt--;
 			info->xmit_tail = (info->xmit_tail + 1) &
@@ -1232,7 +1232,7 @@ static void cyy_chip_tx(struct cyclades_card *cinfo, unsigned int chip,
 	}
 
 done:
-	tty_wakeup(info->tty);
+	tty_wakeup(info->port.tty);
 end:
 	/* end of service */
 	cy_writeb(base_addr + (CyTIR << index), save_xir & 0x3f);
@@ -1256,7 +1256,7 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
 	mdm_change = readb(base_addr + (CyMISR << index));
 	mdm_status = readb(base_addr + (CyMSVR1 << index));
 
-	if (!info->tty)
+	if (!info->port.tty)
 		goto end;
 
 	if (mdm_change & CyANY_DELTA) {
@@ -1273,29 +1273,29 @@ static void cyy_chip_modem(struct cyclades_card *cinfo, int chip,
 		wake_up_interruptible(&info->delta_msr_wait);
 	}
 
-	if ((mdm_change & CyDCD) && (info->flags & ASYNC_CHECK_CD)) {
+	if ((mdm_change & CyDCD) && (info->port.flags & ASYNC_CHECK_CD)) {
 		if (!(mdm_status & CyDCD)) {
-			tty_hangup(info->tty);
-			info->flags &= ~ASYNC_NORMAL_ACTIVE;
+			tty_hangup(info->port.tty);
+			info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
-	if ((mdm_change & CyCTS) && (info->flags & ASYNC_CTS_FLOW)) {
-		if (info->tty->hw_stopped) {
+	if ((mdm_change & CyCTS) && (info->port.flags & ASYNC_CTS_FLOW)) {
+		if (info->port.tty->hw_stopped) {
 			if (mdm_status & CyCTS) {
 				/* cy_start isn't used
 				   because... !!! */
-				info->tty->hw_stopped = 0;
+				info->port.tty->hw_stopped = 0;
 				cy_writeb(base_addr + (CySRER << index),
 					readb(base_addr + (CySRER << index)) |
 						CyTxRdy);
-				tty_wakeup(info->tty);
+				tty_wakeup(info->port.tty);
 			}
 		} else {
 			if (!(mdm_status & CyCTS)) {
 				/* cy_stop isn't used
 				   because ... !!! */
-				info->tty->hw_stopped = 1;
+				info->port.tty->hw_stopped = 1;
 				cy_writeb(base_addr + (CySRER << index),
 					readb(base_addr + (CySRER << index)) &
 						~CyTxRdy);
@@ -1449,7 +1449,7 @@ static void cyz_handle_rx(struct cyclades_port *info,
 		struct BUF_CTRL __iomem *buf_ctrl)
 {
 	struct cyclades_card *cinfo = info->card;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	unsigned int char_count;
 	int len;
 #ifdef BLOCKMOVE
@@ -1542,7 +1542,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
 		struct BUF_CTRL __iomem *buf_ctrl)
 {
 	struct cyclades_card *cinfo = info->card;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	u8 data;
 	unsigned int char_count;
 #ifdef BLOCKMOVE
@@ -1585,7 +1585,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
 
 			memcpy_toio((char *)(cinfo->base_addr + tx_bufaddr +
 					tx_put),
-					&info->xmit_buf[info->xmit_tail],
+					&info->port.xmit_buf[info->xmit_tail],
 					small_count);
 
 			tx_put = (tx_put + small_count) & (tx_bufsize - 1);
@@ -1597,7 +1597,7 @@ static void cyz_handle_tx(struct cyclades_port *info,
 		}
 #else
 		while (info->xmit_cnt && char_count) {
-			data = info->xmit_buf[info->xmit_tail];
+			data = info->port.xmit_buf[info->xmit_tail];
 			info->xmit_cnt--;
 			info->xmit_tail = (info->xmit_tail + 1) &
 					(SERIAL_XMIT_SIZE - 1);
@@ -1642,7 +1642,7 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
 		special_count = 0;
 		delta_count = 0;
 		info = &cinfo->ports[channel];
-		tty = info->tty;
+		tty = info->port.tty;
 		if (tty == NULL)
 			continue;
 
@@ -1668,15 +1668,15 @@ static void cyz_handle_cmd(struct cyclades_card *cinfo)
 		case C_CM_MDCD:
 			info->icount.dcd++;
 			delta_count++;
-			if (info->flags & ASYNC_CHECK_CD) {
+			if (info->port.flags & ASYNC_CHECK_CD) {
 				if ((fw_ver > 241 ? ((u_long) param) :
 						readl(&ch_ctrl->rs_status)) &
 						C_RS_DCD) {
-					wake_up_interruptible(&info->open_wait);
+					wake_up_interruptible(&info->port.open_wait);
 				} else {
-					tty_hangup(info->tty);
-					wake_up_interruptible(&info->open_wait);
-					info->flags &= ~ASYNC_NORMAL_ACTIVE;
+					tty_hangup(info->port.tty);
+					wake_up_interruptible(&info->port.open_wait);
+					info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 				}
 			}
 			break;
@@ -1814,7 +1814,7 @@ static void cyz_poll(unsigned long arg)
 
 		for (port = 0; port < cinfo->nports; port++) {
 			info = &cinfo->ports[port];
-			tty = info->tty;
+			tty = info->port.tty;
 			buf_ctrl = &(zfw_ctrl->buf_ctrl[port]);
 
 			if (!info->throttle)
@@ -1853,22 +1853,22 @@ static int startup(struct cyclades_port *info)
 
 	spin_lock_irqsave(&card->card_lock, flags);
 
-	if (info->flags & ASYNC_INITIALIZED) {
+	if (info->port.flags & ASYNC_INITIALIZED) {
 		free_page(page);
 		goto errout;
 	}
 
 	if (!info->type) {
-		if (info->tty)
-			set_bit(TTY_IO_ERROR, &info->tty->flags);
+		if (info->port.tty)
+			set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 		free_page(page);
 		goto errout;
 	}
 
-	if (info->xmit_buf)
+	if (info->port.xmit_buf)
 		free_page(page);
 	else
-		info->xmit_buf = (unsigned char *)page;
+		info->port.xmit_buf = (unsigned char *)page;
 
 	spin_unlock_irqrestore(&card->card_lock, flags);
 
@@ -1909,10 +1909,10 @@ static int startup(struct cyclades_port *info)
 
 		cy_writeb(base_addr + (CySRER << index),
 			readb(base_addr + (CySRER << index)) | CyRxData);
-		info->flags |= ASYNC_INITIALIZED;
+		info->port.flags |= ASYNC_INITIALIZED;
 
-		if (info->tty)
-			clear_bit(TTY_IO_ERROR, &info->tty->flags);
+		if (info->port.tty)
+			clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 		info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
 		info->breakon = info->breakoff = 0;
 		memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
@@ -1994,9 +1994,9 @@ static int startup(struct cyclades_port *info)
 
 		/* enable send, recv, modem !!! */
 
-		info->flags |= ASYNC_INITIALIZED;
-		if (info->tty)
-			clear_bit(TTY_IO_ERROR, &info->tty->flags);
+		info->port.flags |= ASYNC_INITIALIZED;
+		if (info->port.tty)
+			clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 		info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
 		info->breakon = info->breakoff = 0;
 		memset((char *)&info->idle_stats, 0, sizeof(info->idle_stats));
@@ -2065,7 +2065,7 @@ static void shutdown(struct cyclades_port *info)
 	void __iomem *base_addr;
 	int chip, channel, index;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	card = info->card;
@@ -2087,14 +2087,14 @@ static void shutdown(struct cyclades_port *info)
 		/* Clear delta_msr_wait queue to avoid mem leaks. */
 		wake_up_interruptible(&info->delta_msr_wait);
 
-		if (info->xmit_buf) {
+		if (info->port.xmit_buf) {
 			unsigned char *temp;
-			temp = info->xmit_buf;
-			info->xmit_buf = NULL;
+			temp = info->port.xmit_buf;
+			info->port.xmit_buf = NULL;
 			free_page((unsigned long)temp);
 		}
 		cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
-		if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+		if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
 			cy_writeb(base_addr + (CyMSVR1 << index), ~CyRTS);
 			cy_writeb(base_addr + (CyMSVR2 << index), ~CyDTR);
 #ifdef CY_DEBUG_DTR
@@ -2108,9 +2108,9 @@ static void shutdown(struct cyclades_port *info)
 		/* it may be appropriate to clear _XMIT at
 		   some later date (after testing)!!! */
 
-		if (info->tty)
-			set_bit(TTY_IO_ERROR, &info->tty->flags);
-		info->flags &= ~ASYNC_INITIALIZED;
+		if (info->port.tty)
+			set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+		info->port.flags &= ~ASYNC_INITIALIZED;
 		spin_unlock_irqrestore(&card->card_lock, flags);
 	} else {
 		struct FIRM_ID __iomem *firm_id;
@@ -2136,14 +2136,14 @@ static void shutdown(struct cyclades_port *info)
 
 		spin_lock_irqsave(&card->card_lock, flags);
 
-		if (info->xmit_buf) {
+		if (info->port.xmit_buf) {
 			unsigned char *temp;
-			temp = info->xmit_buf;
-			info->xmit_buf = NULL;
+			temp = info->port.xmit_buf;
+			info->port.xmit_buf = NULL;
 			free_page((unsigned long)temp);
 		}
 
-		if (!info->tty || (info->tty->termios->c_cflag & HUPCL)) {
+		if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL)) {
 			cy_writel(&ch_ctrl[channel].rs_control,
 				(__u32)(readl(&ch_ctrl[channel].rs_control) &
 					~(C_RS_RTS | C_RS_DTR)));
@@ -2158,9 +2158,9 @@ static void shutdown(struct cyclades_port *info)
 #endif
 		}
 
-		if (info->tty)
-			set_bit(TTY_IO_ERROR, &info->tty->flags);
-		info->flags &= ~ASYNC_INITIALIZED;
+		if (info->port.tty)
+			set_bit(TTY_IO_ERROR, &info->port.tty->flags);
+		info->port.flags &= ~ASYNC_INITIALIZED;
 
 		spin_unlock_irqrestore(&card->card_lock, flags);
 	}
@@ -2194,10 +2194,10 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 	 * If the device is in the middle of being closed, then block
 	 * until it's done, and then try again.
 	 */
-	if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
-		wait_event_interruptible(info->close_wait,
-				!(info->flags & ASYNC_CLOSING));
-		return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+	if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+		wait_event_interruptible(info->port.close_wait,
+				!(info->port.flags & ASYNC_CLOSING));
+		return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
 	}
 
 	/*
@@ -2206,32 +2206,32 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 					(tty->flags & (1 << TTY_IO_ERROR))) {
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
 	/*
 	 * Block waiting for the carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
+	 * this loop, info->port.count is dropped by one, so that
 	 * cy_close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 #ifdef CY_DEBUG_OPEN
 	printk(KERN_DEBUG "cyc block_til_ready before block: ttyC%d, "
-		"count = %d\n", info->line, info->count);
+		"count = %d\n", info->line, info->port.count);
 #endif
 	spin_lock_irqsave(&cinfo->card_lock, flags);
 	if (!tty_hung_up_p(filp))
-		info->count--;
+		info->port.count--;
 	spin_unlock_irqrestore(&cinfo->card_lock, flags);
 #ifdef CY_DEBUG_COUNT
 	printk(KERN_DEBUG "cyc block_til_ready: (%d): decrementing count to "
-		"%d\n", current->pid, info->count);
+		"%d\n", current->pid, info->port.count);
 #endif
-	info->blocked_open++;
+	info->port.blocked_open++;
 
 	if (!IS_CYC_Z(*cinfo)) {
 		chip = channel >> 2;
@@ -2260,8 +2260,8 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 
 			set_current_state(TASK_INTERRUPTIBLE);
 			if (tty_hung_up_p(filp) ||
-					!(info->flags & ASYNC_INITIALIZED)) {
-				retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+					!(info->port.flags & ASYNC_INITIALIZED)) {
+				retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 					  -EAGAIN : -ERESTARTSYS);
 				break;
 			}
@@ -2269,7 +2269,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 			spin_lock_irqsave(&cinfo->card_lock, flags);
 			cy_writeb(base_addr + (CyCAR << index),
 				  (u_char) channel);
-			if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+			if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
 					(readb(base_addr +
 						(CyMSVR1 << index)) & CyDCD))) {
 				spin_unlock_irqrestore(&cinfo->card_lock, flags);
@@ -2284,7 +2284,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 #ifdef CY_DEBUG_OPEN
 			printk(KERN_DEBUG "cyc block_til_ready blocking: "
 				"ttyC%d, count = %d\n",
-				info->line, info->count);
+				info->line, info->port.count);
 #endif
 			schedule();
 		}
@@ -2298,7 +2298,7 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 		firm_id = base_addr + ID_ADDRESS;
 		if (!ISZLOADED(*cinfo)) {
 			__set_current_state(TASK_RUNNING);
-			remove_wait_queue(&info->open_wait, &wait);
+			remove_wait_queue(&info->port.open_wait, &wait);
 			return -EINVAL;
 		}
 
@@ -2327,12 +2327,12 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 
 			set_current_state(TASK_INTERRUPTIBLE);
 			if (tty_hung_up_p(filp) ||
-					!(info->flags & ASYNC_INITIALIZED)) {
-				retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+					!(info->port.flags & ASYNC_INITIALIZED)) {
+				retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 					  -EAGAIN : -ERESTARTSYS);
 				break;
 			}
-			if (!(info->flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
+			if (!(info->port.flags & ASYNC_CLOSING) && (C_CLOCAL(tty) ||
 					(readl(&ch_ctrl[channel].rs_status) &
 						C_RS_DCD))) {
 				break;
@@ -2344,28 +2344,28 @@ block_til_ready(struct tty_struct *tty, struct file *filp,
 #ifdef CY_DEBUG_OPEN
 			printk(KERN_DEBUG "cyc block_til_ready blocking: "
 				"ttyC%d, count = %d\n",
-				info->line, info->count);
+				info->line, info->port.count);
 #endif
 			schedule();
 		}
 	}
 	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 	if (!tty_hung_up_p(filp)) {
-		info->count++;
+		info->port.count++;
 #ifdef CY_DEBUG_COUNT
 		printk(KERN_DEBUG "cyc:block_til_ready (%d): incrementing "
-			"count to %d\n", current->pid, info->count);
+			"count to %d\n", current->pid, info->port.count);
 #endif
 	}
-	info->blocked_open--;
+	info->port.blocked_open--;
 #ifdef CY_DEBUG_OPEN
 	printk(KERN_DEBUG "cyc:block_til_ready after blocking: ttyC%d, "
-		"count = %d\n", info->line, info->count);
+		"count = %d\n", info->line, info->port.count);
 #endif
 	if (retval)
 		return retval;
-	info->flags |= ASYNC_NORMAL_ACTIVE;
+	info->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }				/* block_til_ready */
 
@@ -2456,27 +2456,27 @@ static int cy_open(struct tty_struct *tty, struct file *filp)
 	printk(KERN_DEBUG "cyc:cy_open ttyC%d\n", info->line);
 #endif
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 	if (serial_paranoia_check(info, tty->name, "cy_open"))
 		return -ENODEV;
 
 #ifdef CY_DEBUG_OPEN
 	printk(KERN_DEBUG "cyc:cy_open ttyC%d, count = %d\n", info->line,
-			info->count);
+			info->port.count);
 #endif
-	info->count++;
+	info->port.count++;
 #ifdef CY_DEBUG_COUNT
 	printk(KERN_DEBUG "cyc:cy_open (%d): incrementing count to %d\n",
-		current->pid, info->count);
+		current->pid, info->port.count);
 #endif
 
 	/*
 	 * If the port is the middle of closing, bail out now
 	 */
-	if (tty_hung_up_p(filp) || (info->flags & ASYNC_CLOSING)) {
-		wait_event_interruptible(info->close_wait,
-				!(info->flags & ASYNC_CLOSING));
-		return (info->flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
+	if (tty_hung_up_p(filp) || (info->port.flags & ASYNC_CLOSING)) {
+		wait_event_interruptible(info->port.close_wait,
+				!(info->port.flags & ASYNC_CLOSING));
+		return (info->port.flags & ASYNC_HUP_NOTIFY) ? -EAGAIN: -ERESTARTSYS;
 	}
 
 	/*
@@ -2641,9 +2641,9 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
 	}
 #ifdef CY_DEBUG_OPEN
 	printk(KERN_DEBUG "cyc:cy_close ttyC%d, count = %d\n", info->line,
-		info->count);
+		info->port.count);
 #endif
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * Uh, oh.  tty->count is 1, which means that the tty
 		 * structure will be freed.  Info->count should always
@@ -2652,24 +2652,24 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
 		 * serial port won't be shutdown.
 		 */
 		printk(KERN_ERR "cyc:cy_close: bad serial port count; "
-			"tty->count is 1, info->count is %d\n", info->count);
-		info->count = 1;
+			"tty->count is 1, info->port.count is %d\n", info->port.count);
+		info->port.count = 1;
 	}
 #ifdef CY_DEBUG_COUNT
 	printk(KERN_DEBUG  "cyc:cy_close at (%d): decrementing count to %d\n",
-		current->pid, info->count - 1);
+		current->pid, info->port.count - 1);
 #endif
-	if (--info->count < 0) {
+	if (--info->port.count < 0) {
 #ifdef CY_DEBUG_COUNT
 		printk(KERN_DEBUG "cyc:cyc_close setting count to 0\n");
 #endif
-		info->count = 0;
+		info->port.count = 0;
 	}
-	if (info->count) {
+	if (info->port.count) {
 		spin_unlock_irqrestore(&card->card_lock, flags);
 		return;
 	}
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify
@@ -2677,8 +2677,8 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
 	 */
 	tty->closing = 1;
 	spin_unlock_irqrestore(&card->card_lock, flags);
-	if (info->closing_wait != CY_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, info->closing_wait);
+	if (info->port.closing_wait != CY_CLOSING_WAIT_NONE)
+		tty_wait_until_sent(tty, info->port.closing_wait);
 
 	spin_lock_irqsave(&card->card_lock, flags);
 
@@ -2692,7 +2692,7 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
 		cy_writeb(base_addr + (CyCAR << index), (u_char) channel);
 		cy_writeb(base_addr + (CySRER << index),
 			  readb(base_addr + (CySRER << index)) & ~CyRxData);
-		if (info->flags & ASYNC_INITIALIZED) {
+		if (info->port.flags & ASYNC_INITIALIZED) {
 			/* Waiting for on-board buffers to be empty before
 			   closing the port */
 			spin_unlock_irqrestore(&card->card_lock, flags);
@@ -2731,18 +2731,18 @@ static void cy_close(struct tty_struct *tty, struct file *filp)
 	spin_lock_irqsave(&card->card_lock, flags);
 
 	tty->closing = 0;
-	info->tty = NULL;
-	if (info->blocked_open) {
+	info->port.tty = NULL;
+	if (info->port.blocked_open) {
 		spin_unlock_irqrestore(&card->card_lock, flags);
-		if (info->close_delay) {
+		if (info->port.close_delay) {
 			msleep_interruptible(jiffies_to_msecs
-						(info->close_delay));
+						(info->port.close_delay));
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 		spin_lock_irqsave(&card->card_lock, flags);
 	}
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
-	wake_up_interruptible(&info->close_wait);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+	wake_up_interruptible(&info->port.close_wait);
 
 #ifdef CY_DEBUG_OTHER
 	printk(KERN_DEBUG "cyc:cy_close done\n");
@@ -2777,7 +2777,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
 	if (serial_paranoia_check(info, tty->name, "cy_write"))
 		return 0;
 
-	if (!info->xmit_buf)
+	if (!info->port.xmit_buf)
 		return 0;
 
 	spin_lock_irqsave(&info->card->card_lock, flags);
@@ -2788,7 +2788,7 @@ static int cy_write(struct tty_struct *tty, const unsigned char *buf, int count)
 		if (c <= 0)
 			break;
 
-		memcpy(info->xmit_buf + info->xmit_head, buf, c);
+		memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
 		info->xmit_head = (info->xmit_head + c) &
 			(SERIAL_XMIT_SIZE - 1);
 		info->xmit_cnt += c;
@@ -2826,7 +2826,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch)
 	if (serial_paranoia_check(info, tty->name, "cy_put_char"))
 		return 0;
 
-	if (!info->xmit_buf)
+	if (!info->port.xmit_buf)
 		return 0;
 
 	spin_lock_irqsave(&info->card->card_lock, flags);
@@ -2835,7 +2835,7 @@ static int cy_put_char(struct tty_struct *tty, unsigned char ch)
 		return 0;
 	}
 
-	info->xmit_buf[info->xmit_head++] = ch;
+	info->port.xmit_buf[info->xmit_head++] = ch;
 	info->xmit_head &= SERIAL_XMIT_SIZE - 1;
 	info->xmit_cnt++;
 	info->idle_stats.xmit_bytes++;
@@ -2860,7 +2860,7 @@ static void cy_flush_chars(struct tty_struct *tty)
 		return;
 
 	if (info->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-			!info->xmit_buf)
+			!info->port.xmit_buf)
 		return;
 
 	start_xmit(info);
@@ -2988,27 +2988,27 @@ static void set_line_char(struct cyclades_port *info)
 	int baud, baud_rate = 0;
 	int i;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return;
 
 	if (info->line == -1)
 		return;
 
-	cflag = info->tty->termios->c_cflag;
-	iflag = info->tty->termios->c_iflag;
+	cflag = info->port.tty->termios->c_cflag;
+	iflag = info->port.tty->termios->c_iflag;
 
 	/*
 	 * Set up the tty->alt_speed kludge
 	 */
-	if (info->tty) {
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-			info->tty->alt_speed = 57600;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-			info->tty->alt_speed = 115200;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-			info->tty->alt_speed = 230400;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-			info->tty->alt_speed = 460800;
+	if (info->port.tty) {
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+			info->port.tty->alt_speed = 57600;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+			info->port.tty->alt_speed = 115200;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+			info->port.tty->alt_speed = 230400;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+			info->port.tty->alt_speed = 460800;
 	}
 
 	card = info->card;
@@ -3020,8 +3020,8 @@ static void set_line_char(struct cyclades_port *info)
 		index = card->bus_index;
 
 		/* baud rate */
-		baud = tty_get_baud_rate(info->tty);
-		if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+		baud = tty_get_baud_rate(info->port.tty);
+		if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
 				ASYNC_SPD_CUST) {
 			if (info->custom_divisor)
 				baud_rate = info->baud / info->custom_divisor;
@@ -3038,7 +3038,7 @@ static void set_line_char(struct cyclades_port *info)
 		if (i == 20)
 			i = 19;	/* CD1400_MAX_SPEED */
 
-		if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+		if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
 				ASYNC_SPD_CUST) {
 			cyy_baud_calc(info, baud_rate);
 		} else {
@@ -3059,7 +3059,7 @@ static void set_line_char(struct cyclades_port *info)
 			/* get it right for 134.5 baud */
 			info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
 					2;
-		} else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+		} else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
 				ASYNC_SPD_CUST) {
 			info->timeout = (info->xmit_fifo_size * HZ * 15 /
 					baud_rate) + 2;
@@ -3108,16 +3108,16 @@ static void set_line_char(struct cyclades_port *info)
 
 		/* CTS flow control flag */
 		if (cflag & CRTSCTS) {
-			info->flags |= ASYNC_CTS_FLOW;
+			info->port.flags |= ASYNC_CTS_FLOW;
 			info->cor2 |= CyCtsAE;
 		} else {
-			info->flags &= ~ASYNC_CTS_FLOW;
+			info->port.flags &= ~ASYNC_CTS_FLOW;
 			info->cor2 &= ~CyCtsAE;
 		}
 		if (cflag & CLOCAL)
-			info->flags &= ~ASYNC_CHECK_CD;
+			info->port.flags &= ~ASYNC_CHECK_CD;
 		else
-			info->flags |= ASYNC_CHECK_CD;
+			info->port.flags |= ASYNC_CHECK_CD;
 
 	 /***********************************************
 	    The hardware option, CyRtsAO, presents RTS when
@@ -3146,8 +3146,8 @@ static void set_line_char(struct cyclades_port *info)
 		/* set line characteristics  according configuration */
 
 		cy_writeb(base_addr + (CySCHR1 << index),
-			  START_CHAR(info->tty));
-		cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->tty));
+			  START_CHAR(info->port.tty));
+		cy_writeb(base_addr + (CySCHR2 << index), STOP_CHAR(info->port.tty));
 		cy_writeb(base_addr + (CyCOR1 << index), info->cor1);
 		cy_writeb(base_addr + (CyCOR2 << index), info->cor2);
 		cy_writeb(base_addr + (CyCOR3 << index), info->cor3);
@@ -3163,7 +3163,7 @@ static void set_line_char(struct cyclades_port *info)
 			(info->default_timeout ? info->default_timeout : 0x02));
 		/* 10ms rx timeout */
 
-		if (C_CLOCAL(info->tty)) {
+		if (C_CLOCAL(info->port.tty)) {
 			/* without modem intr */
 			cy_writeb(base_addr + (CySRER << index),
 				readb(base_addr + (CySRER << index)) | CyMdmCh);
@@ -3226,8 +3226,8 @@ static void set_line_char(struct cyclades_port *info)
 #endif
 		}
 
-		if (info->tty)
-			clear_bit(TTY_IO_ERROR, &info->tty->flags);
+		if (info->port.tty)
+			clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 		spin_unlock_irqrestore(&card->card_lock, flags);
 
 	} else {
@@ -3250,8 +3250,8 @@ static void set_line_char(struct cyclades_port *info)
 		buf_ctrl = &zfw_ctrl->buf_ctrl[channel];
 
 		/* baud rate */
-		baud = tty_get_baud_rate(info->tty);
-		if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+		baud = tty_get_baud_rate(info->port.tty);
+		if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
 				ASYNC_SPD_CUST) {
 			if (info->custom_divisor)
 				baud_rate = info->baud / info->custom_divisor;
@@ -3266,7 +3266,7 @@ static void set_line_char(struct cyclades_port *info)
 			/* get it right for 134.5 baud */
 			info->timeout = (info->xmit_fifo_size * HZ * 30 / 269) +
 					2;
-		} else if (baud == 38400 && (info->flags & ASYNC_SPD_MASK) ==
+		} else if (baud == 38400 && (info->port.flags & ASYNC_SPD_MASK) ==
 				ASYNC_SPD_CUST) {
 			info->timeout = (info->xmit_fifo_size * HZ * 15 /
 					baud_rate) + 2;
@@ -3318,7 +3318,7 @@ static void set_line_char(struct cyclades_port *info)
 		}
 		/* As the HW flow control is done in firmware, the driver
 		   doesn't need to care about it */
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 
 		/* XON/XOFF/XANY flow control flags */
 		sw_flow = 0;
@@ -3337,9 +3337,9 @@ static void set_line_char(struct cyclades_port *info)
 
 		/* CD sensitivity */
 		if (cflag & CLOCAL)
-			info->flags &= ~ASYNC_CHECK_CD;
+			info->port.flags &= ~ASYNC_CHECK_CD;
 		else
-			info->flags |= ASYNC_CHECK_CD;
+			info->port.flags |= ASYNC_CHECK_CD;
 
 		if (baud == 0) {	/* baud rate is zero, turn off line */
 			cy_writel(&ch_ctrl->rs_control,
@@ -3361,8 +3361,8 @@ static void set_line_char(struct cyclades_port *info)
 				"was %x\n", info->line, retval);
 		}
 
-		if (info->tty)
-			clear_bit(TTY_IO_ERROR, &info->tty->flags);
+		if (info->port.tty)
+			clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 	}
 }				/* set_line_char */
 
@@ -3381,9 +3381,9 @@ get_serial_info(struct cyclades_port *info,
 	tmp.port = (info->card - cy_card) * 0x100 + info->line -
 		cinfo->first_line;
 	tmp.irq = cinfo->irq;
-	tmp.flags = info->flags;
-	tmp.close_delay = info->close_delay;
-	tmp.closing_wait = info->closing_wait;
+	tmp.flags = info->port.flags;
+	tmp.close_delay = info->port.close_delay;
+	tmp.closing_wait = info->port.closing_wait;
 	tmp.baud_base = info->baud;
 	tmp.custom_divisor = info->custom_divisor;
 	tmp.hub6 = 0;		/*!!! */
@@ -3402,13 +3402,13 @@ set_serial_info(struct cyclades_port *info,
 	old_info = *info;
 
 	if (!capable(CAP_SYS_ADMIN)) {
-		if (new_serial.close_delay != info->close_delay ||
+		if (new_serial.close_delay != info->port.close_delay ||
 				new_serial.baud_base != info->baud ||
 				(new_serial.flags & ASYNC_FLAGS &
 					~ASYNC_USR_MASK) !=
-				(info->flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
+				(info->port.flags & ASYNC_FLAGS & ~ASYNC_USR_MASK))
 			return -EPERM;
-		info->flags = (info->flags & ~ASYNC_USR_MASK) |
+		info->port.flags = (info->port.flags & ~ASYNC_USR_MASK) |
 				(new_serial.flags & ASYNC_USR_MASK);
 		info->baud = new_serial.baud_base;
 		info->custom_divisor = new_serial.custom_divisor;
@@ -3422,13 +3422,13 @@ set_serial_info(struct cyclades_port *info,
 
 	info->baud = new_serial.baud_base;
 	info->custom_divisor = new_serial.custom_divisor;
-	info->flags = (info->flags & ~ASYNC_FLAGS) |
+	info->port.flags = (info->port.flags & ~ASYNC_FLAGS) |
 			(new_serial.flags & ASYNC_FLAGS);
-	info->close_delay = new_serial.close_delay * HZ / 100;
-	info->closing_wait = new_serial.closing_wait * HZ / 100;
+	info->port.close_delay = new_serial.close_delay * HZ / 100;
+	info->port.closing_wait = new_serial.closing_wait * HZ / 100;
 
 check_and_exit:
-	if (info->flags & ASYNC_INITIALIZED) {
+	if (info->port.flags & ASYNC_INITIALIZED) {
 		set_line_char(info);
 		return 0;
 	} else {
@@ -3971,11 +3971,11 @@ cy_ioctl(struct tty_struct *tty, struct file *file,
 		break;
 #endif				/* CONFIG_CYZ_INTR */
 	case CYSETWAIT:
-		info->closing_wait = (unsigned short)arg * HZ / 100;
+		info->port.closing_wait = (unsigned short)arg * HZ / 100;
 		ret_val = 0;
 		break;
 	case CYGETWAIT:
-		ret_val = info->closing_wait / (HZ / 100);
+		ret_val = info->port.closing_wait / (HZ / 100);
 		break;
 	case TIOCGSERIAL:
 		ret_val = get_serial_info(info, argp);
@@ -4097,7 +4097,7 @@ static void cy_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 	 */
 	if (!(old_termios->c_cflag & CLOCAL) &&
 	    (tty->termios->c_cflag & CLOCAL))
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 #endif
 }				/* cy_set_termios */
 
@@ -4326,14 +4326,14 @@ static void cy_hangup(struct tty_struct *tty)
 
 	cy_flush_buffer(tty);
 	shutdown(info);
-	info->count = 0;
+	info->port.count = 0;
 #ifdef CY_DEBUG_COUNT
 	printk(KERN_DEBUG "cyc:cy_hangup (%d): setting count to 0\n",
 		current->pid);
 #endif
-	info->tty = NULL;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	wake_up_interruptible(&info->open_wait);
+	info->port.tty = NULL;
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	wake_up_interruptible(&info->port.open_wait);
 }				/* cy_hangup */
 
 /*
@@ -4376,15 +4376,14 @@ static int __devinit cy_init_card(struct cyclades_card *cinfo)
 	for (port = cinfo->first_line; port < cinfo->first_line + nports;
 			port++) {
 		info = &cinfo->ports[port - cinfo->first_line];
+		tty_port_init(&info->port);
 		info->magic = CYCLADES_MAGIC;
 		info->card = cinfo;
 		info->line = port;
-		info->flags = STD_COM_FLAGS;
-		info->closing_wait = CLOSING_WAIT_DELAY;
-		info->close_delay = 5 * HZ / 10;
 
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
+		info->port.closing_wait = CLOSING_WAIT_DELAY;
+		info->port.close_delay = 5 * HZ / 10;
+		info->port.flags = STD_COM_FLAGS;
 		init_completion(&info->shutdown_wait);
 		init_waitqueue_head(&info->delta_msr_wait);
 
@@ -5237,7 +5236,7 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
 		for (j = 0; j < cy_card[i].nports; j++) {
 			info = &cy_card[i].ports[j];
 
-			if (info->count)
+			if (info->port.count)
 				size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
 					"%10lu %8lu %9lu %6ld\n", info->line,
 					(cur_jifs - info->idle_stats.in_use) /
@@ -5246,7 +5245,8 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
 					HZ, info->idle_stats.recv_bytes,
 					(cur_jifs - info->idle_stats.recv_idle)/
 					HZ, info->idle_stats.overruns,
-					(long)info->tty->ldisc.num);
+					/* FIXME: double check locking */
+					(long)info->port.tty->ldisc.ops->num);
 			else
 				size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
 					"%10lu %8lu %9lu %6ld\n",
diff --git a/drivers/char/epca.c b/drivers/char/epca.c
index 60a4df7dac12..ac9995f6578b 100644
--- a/drivers/char/epca.c
+++ b/drivers/char/epca.c
@@ -432,7 +432,7 @@ static void pc_close(struct tty_struct *tty, struct file *filp)
 			spin_unlock_irqrestore(&epca_lock, flags);
 			return;
 		}
-		if (ch->count-- > 1)  {
+		if (ch->port.count-- > 1)  {
 			/* Begin channel is open more than once */
 			/*
 			 * Return without doing anything. Someone might still
@@ -442,19 +442,19 @@ static void pc_close(struct tty_struct *tty, struct file *filp)
 			return;
 		}
 		/* Port open only once go ahead with shutdown & reset */
-		BUG_ON(ch->count < 0);
+		BUG_ON(ch->port.count < 0);
 
 		/*
 		 * Let the rest of the driver know the channel is being closed.
 		 * This becomes important if an open is attempted before close
 		 * is finished.
 		 */
-		ch->asyncflags |= ASYNC_CLOSING;
+		ch->port.flags |= ASYNC_CLOSING;
 		tty->closing = 1;
 
 		spin_unlock_irqrestore(&epca_lock, flags);
 
-		if (ch->asyncflags & ASYNC_INITIALIZED)  {
+		if (ch->port.flags & ASYNC_INITIALIZED)  {
 			/* Setup an event to indicate when the
 			   transmit buffer empties */
 			setup_empty_event(tty, ch);
@@ -469,17 +469,17 @@ static void pc_close(struct tty_struct *tty, struct file *filp)
 		spin_lock_irqsave(&epca_lock, flags);
 		tty->closing = 0;
 		ch->event = 0;
-		ch->tty = NULL;
+		ch->port.tty = NULL;
 		spin_unlock_irqrestore(&epca_lock, flags);
 
-		if (ch->blocked_open) {
+		if (ch->port.blocked_open) {
 			if (ch->close_delay)
 				msleep_interruptible(jiffies_to_msecs(ch->close_delay));
-			wake_up_interruptible(&ch->open_wait);
+			wake_up_interruptible(&ch->port.open_wait);
 		}
-		ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED |
+		ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED |
 					ASYNC_CLOSING);
-		wake_up_interruptible(&ch->close_wait);
+		wake_up_interruptible(&ch->port.close_wait);
 	}
 }
 
@@ -489,7 +489,7 @@ static void shutdown(struct channel *ch)
 	struct tty_struct *tty;
 	struct board_chan __iomem *bc;
 
-	if (!(ch->asyncflags & ASYNC_INITIALIZED))
+	if (!(ch->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	spin_lock_irqsave(&epca_lock, flags);
@@ -504,7 +504,7 @@ static void shutdown(struct channel *ch)
 	 */
 	if (bc)
 		writeb(0, &bc->idata);
-	tty = ch->tty;
+	tty = ch->port.tty;
 
 	/* If we're a modem control device and HUPCL is on, drop RTS & DTR. */
 	if (tty->termios->c_cflag & HUPCL)  {
@@ -518,7 +518,7 @@ static void shutdown(struct channel *ch)
 	 * will have to reinitialized. Set a flag to indicate this.
 	 */
 	/* Prevent future Digi programmed interrupts from coming active */
-	ch->asyncflags &= ~ASYNC_INITIALIZED;
+	ch->port.flags &= ~ASYNC_INITIALIZED;
 	spin_unlock_irqrestore(&epca_lock, flags);
 }
 
@@ -538,12 +538,12 @@ static void pc_hangup(struct tty_struct *tty)
 		shutdown(ch);
 
 		spin_lock_irqsave(&epca_lock, flags);
-		ch->tty   = NULL;
+		ch->port.tty   = NULL;
 		ch->event = 0;
-		ch->count = 0;
-		ch->asyncflags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED);
+		ch->port.count = 0;
+		ch->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_INITIALIZED);
 		spin_unlock_irqrestore(&epca_lock, flags);
-		wake_up_interruptible(&ch->open_wait);
+		wake_up_interruptible(&ch->port.open_wait);
 	}
 }
 
@@ -795,7 +795,7 @@ static int block_til_ready(struct tty_struct *tty,
 	unsigned long flags;
 
 	if (tty_hung_up_p(filp)) {
-		if (ch->asyncflags & ASYNC_HUP_NOTIFY)
+		if (ch->port.flags & ASYNC_HUP_NOTIFY)
 			retval = -EAGAIN;
 		else
 			retval = -ERESTARTSYS;
@@ -806,10 +806,10 @@ static int block_til_ready(struct tty_struct *tty,
 	 * If the device is in the middle of being closed, then block until
 	 * it's done, and then try again.
 	 */
-	if (ch->asyncflags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&ch->close_wait);
+	if (ch->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&ch->port.close_wait);
 
-		if (ch->asyncflags & ASYNC_HUP_NOTIFY)
+		if (ch->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		else
 			return -ERESTARTSYS;
@@ -820,7 +820,7 @@ static int block_til_ready(struct tty_struct *tty,
 		 * If non-blocking mode is set, then make the check up front
 		 * and then exit.
 		 */
-		ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
+		ch->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 	if (tty->termios->c_cflag & CLOCAL)
@@ -828,24 +828,24 @@ static int block_til_ready(struct tty_struct *tty,
 	/* Block waiting for the carrier detect and the line to become free */
 
 	retval = 0;
-	add_wait_queue(&ch->open_wait, &wait);
+	add_wait_queue(&ch->port.open_wait, &wait);
 
 	spin_lock_irqsave(&epca_lock, flags);
 	/* We dec count so that pc_close will know when to free things */
 	if (!tty_hung_up_p(filp))
-		ch->count--;
-	ch->blocked_open++;
+		ch->port.count--;
+	ch->port.blocked_open++;
 	while (1) {
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (tty_hung_up_p(filp) ||
-				!(ch->asyncflags & ASYNC_INITIALIZED)) {
-			if (ch->asyncflags & ASYNC_HUP_NOTIFY)
+				!(ch->port.flags & ASYNC_INITIALIZED)) {
+			if (ch->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
 			break;
 		}
-		if (!(ch->asyncflags & ASYNC_CLOSING) &&
+		if (!(ch->port.flags & ASYNC_CLOSING) &&
 			  (do_clocal || (ch->imodem & ch->dcd)))
 			break;
 		if (signal_pending(current)) {
@@ -864,17 +864,17 @@ static int block_til_ready(struct tty_struct *tty,
 	}
 
 	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&ch->open_wait, &wait);
+	remove_wait_queue(&ch->port.open_wait, &wait);
 	if (!tty_hung_up_p(filp))
-		ch->count++;
-	ch->blocked_open--;
+		ch->port.count++;
+	ch->port.blocked_open--;
 
 	spin_unlock_irqrestore(&epca_lock, flags);
 
 	if (retval)
 		return retval;
 
-	ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
+	ch->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
@@ -933,7 +933,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp)
 	 * necessary because we do not wish to flush and shutdown the channel
 	 * until the last app holding the channel open, closes it.
 	 */
-	ch->count++;
+	ch->port.count++;
 	/*
 	 * Set a kernel structures pointer to our local channel structure. This
 	 * way we can get to it when passed only a tty struct.
@@ -957,14 +957,14 @@ static int pc_open(struct tty_struct *tty, struct file *filp)
 	writew(head, &bc->rout);
 
 	/* Set the channels associated tty structure */
-	ch->tty = tty;
+	ch->port.tty = tty;
 
 	/*
 	 * The below routine generally sets up parity, baud, flow control
 	 * issues, etc.... It effect both control flags and input flags.
 	 */
 	epcaparam(tty, ch);
-	ch->asyncflags |= ASYNC_INITIALIZED;
+	ch->port.flags |= ASYNC_INITIALIZED;
 	memoff(ch);
 	spin_unlock_irqrestore(&epca_lock, flags);
 
@@ -976,7 +976,7 @@ static int pc_open(struct tty_struct *tty, struct file *filp)
 	 * waiting for the line...
 	 */
 	spin_lock_irqsave(&epca_lock, flags);
-	ch->tty = tty;
+	ch->port.tty = tty;
 	globalwinon(ch);
 	/* Enable Digi Data events */
 	writeb(1, &bc->idata);
@@ -1017,8 +1017,8 @@ static void __exit epca_module_exit(void)
 		}
 		ch = card_ptr[crd];
 		for (count = 0; count < bd->numports; count++, ch++) {
-			if (ch && ch->tty)
-				tty_hangup(ch->tty);
+			if (ch && ch->port.tty)
+				tty_hangup(ch->port.tty);
 		}
 	}
 	pci_unregister_driver(&epca_driver);
@@ -1427,7 +1427,7 @@ static void post_fep_init(unsigned int crd)
 		ch->boardnum   = crd;
 		ch->channelnum = i;
 		ch->magic      = EPCA_MAGIC;
-		ch->tty        = NULL;
+		ch->port.tty        = NULL;
 
 		if (shrinkmem) {
 			fepcmd(ch, SETBUFFER, 32, 0, 0, 0);
@@ -1510,10 +1510,10 @@ static void post_fep_init(unsigned int crd)
 		ch->fepstopca = 0;
 
 		ch->close_delay = 50;
-		ch->count = 0;
-		ch->blocked_open = 0;
-		init_waitqueue_head(&ch->open_wait);
-		init_waitqueue_head(&ch->close_wait);
+		ch->port.count = 0;
+		ch->port.blocked_open = 0;
+		init_waitqueue_head(&ch->port.open_wait);
+		init_waitqueue_head(&ch->port.close_wait);
 
 		spin_unlock_irqrestore(&epca_lock, flags);
 	}
@@ -1633,15 +1633,15 @@ static void doevent(int crd)
 		if (event & MODEMCHG_IND) {
 			/* A modem signal change has been indicated */
 			ch->imodem = mstat;
-			if (ch->asyncflags & ASYNC_CHECK_CD) {
+			if (ch->port.flags & ASYNC_CHECK_CD) {
 				/* We are now receiving dcd */
 				if (mstat & ch->dcd)
-					wake_up_interruptible(&ch->open_wait);
+					wake_up_interruptible(&ch->port.open_wait);
 				else	/* No dcd; hangup */
 					pc_sched_event(ch, EPCA_EVENT_HANGUP);
 			}
 		}
-		tty = ch->tty;
+		tty = ch->port.tty;
 		if (tty) {
 			if (event & BREAK_IND) {
 				/* A break has been indicated */
@@ -1880,9 +1880,9 @@ static void epcaparam(struct tty_struct *tty, struct channel *ch)
 		 * that the driver will wait on carrier detect.
 		 */
 		if (ts->c_cflag & CLOCAL)
-			ch->asyncflags &= ~ASYNC_CHECK_CD;
+			ch->port.flags &= ~ASYNC_CHECK_CD;
 		else
-			ch->asyncflags |= ASYNC_CHECK_CD;
+			ch->port.flags |= ASYNC_CHECK_CD;
 		mval = ch->m_dtr | ch->m_rts;
 	} /* End CBAUD not detected */
 	iflag = termios2digi_i(ch, ts->c_iflag);
@@ -1972,7 +1972,7 @@ static void receive_data(struct channel *ch)
 	globalwinon(ch);
 	if (ch->statusflags & RXSTOPPED)
 		return;
-	tty = ch->tty;
+	tty = ch->port.tty;
 	if (tty)
 		ts = tty->termios;
 	bc = ch->brdchan;
@@ -2032,7 +2032,7 @@ static void receive_data(struct channel *ch)
 	globalwinon(ch);
 	writew(tail, &bc->rout);
 	/* Must be called with global data */
-	tty_schedule_flip(ch->tty);
+	tty_schedule_flip(ch->port.tty);
 }
 
 static int info_ioctl(struct tty_struct *tty, struct file *file,
@@ -2262,8 +2262,8 @@ static int pc_ioctl(struct tty_struct *tty, struct file *file,
 			tty_wait_until_sent(tty, 0);
 		} else {
 			/* ldisc lock already held in ioctl */
-			if (tty->ldisc.flush_buffer)
-				tty->ldisc.flush_buffer(tty);
+			if (tty->ldisc.ops->flush_buffer)
+				tty->ldisc.ops->flush_buffer(tty);
 		}
 		unlock_kernel();
 		/* Fall Thru */
@@ -2376,7 +2376,7 @@ static void pc_set_termios(struct tty_struct *tty, struct ktermios *old_termios)
 
 		if (!(old_termios->c_cflag & CLOCAL) &&
 			 (tty->termios->c_cflag & CLOCAL))
-			wake_up_interruptible(&ch->open_wait);
+			wake_up_interruptible(&ch->port.open_wait);
 
 	} /* End if channel valid */
 }
@@ -2386,13 +2386,13 @@ static void do_softint(struct work_struct *work)
 	struct channel *ch = container_of(work, struct channel, tqueue);
 	/* Called in response to a modem change event */
 	if (ch && ch->magic == EPCA_MAGIC) {
-		struct tty_struct *tty = ch->tty;
+		struct tty_struct *tty = ch->port.tty;
 
 		if (tty && tty->driver_data) {
 			if (test_and_clear_bit(EPCA_EVENT_HANGUP, &ch->event)) {
 				tty_hangup(tty);
-				wake_up_interruptible(&ch->open_wait);
-				ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
+				wake_up_interruptible(&ch->port.open_wait);
+				ch->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 			}
 		}
 	}
diff --git a/drivers/char/epca.h b/drivers/char/epca.h
index 3c77c02b5d65..d414bf2dbf7c 100644
--- a/drivers/char/epca.h
+++ b/drivers/char/epca.h
@@ -84,6 +84,7 @@ static char *board_desc[] =
 struct channel 
 {
 	long   magic;
+	struct tty_port port;
 	unsigned char boardnum;
 	unsigned char channelnum;
 	unsigned char omodem;         /* FEP output modem status     */
@@ -117,10 +118,7 @@ struct channel
 	unsigned short rxbufhead;
 	unsigned short rxbufsize;
 	int    close_delay;
-	int    count;
-	int    blocked_open;
 	unsigned long  event;
-	int    asyncflags;
 	uint   dev;
 	unsigned long  statusflags;
 	unsigned long  c_iflag;
@@ -132,9 +130,6 @@ struct channel
 	struct board_info           *board;
 	struct board_chan	    __iomem *brdchan;
 	struct digi_struct          digiext;
-	struct tty_struct           *tty;
-	wait_queue_head_t           open_wait;
-	wait_queue_head_t           close_wait;
 	struct work_struct          tqueue;
 	struct global_data 	    __iomem *mailbox;
 };
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 84840ba13ff0..2eaf09f93e3d 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -128,9 +128,9 @@ static struct tty_driver *esp_driver;
 
 #if defined(MODULE) && defined(SERIAL_DEBUG_MCOUNT)
 #define DBG_CNT(s) printk(KERN_DEBUG "(%s): [%x] refc=%d, serc=%d, ttyc=%d -> %s\n", \
-				tty->name, info->flags, \
+				tty->name, info->port.flags, \
 				serial_driver.refcount, \
-				info->count, tty->count, s)
+				info->port.count, tty->count, s)
 #else
 #define DBG_CNT(s)
 #endif
@@ -172,13 +172,13 @@ static inline int serial_paranoia_check(struct esp_struct *info,
 
 static inline unsigned int serial_in(struct esp_struct *info, int offset)
 {
-	return inb(info->port + offset);
+	return inb(info->io_port + offset);
 }
 
 static inline void serial_out(struct esp_struct *info, int offset,
 			      unsigned char value)
 {
-	outb(value, info->port+offset);
+	outb(value, info->io_port+offset);
 }
 
 /*
@@ -273,7 +273,7 @@ static inline void release_pio_buffer(struct esp_pio_buffer *buf)
 
 static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
 {
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	int i;
 	struct esp_pio_buffer *pio_buf;
 	struct esp_pio_buffer *err_buf;
@@ -295,7 +295,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
 
 	for (i = 0; i < num_bytes - 1; i += 2) {
 		*((unsigned short *)(pio_buf->data + i)) =
-			inw(info->port + UART_ESI_RX);
+			inw(info->io_port + UART_ESI_RX);
 		err_buf->data[i] = serial_in(info, UART_ESI_RWS);
 		err_buf->data[i + 1] = (err_buf->data[i] >> 3) & status_mask;
 		err_buf->data[i] &= status_mask;
@@ -308,7 +308,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
 	}
 
 	/* make sure everything is still ok since interrupts were enabled */
-	tty = info->tty;
+	tty = info->port.tty;
 
 	if (!tty) {
 		release_pio_buffer(pio_buf);
@@ -325,7 +325,7 @@ static inline void receive_chars_pio(struct esp_struct *info, int num_bytes)
 
 			if (err_buf->data[i] & 0x04) {
 				flag = TTY_BREAK;
-				if (info->flags & ASYNC_SAK)
+				if (info->port.flags & ASYNC_SAK)
 					do_SAK(tty);
 			} else if (err_buf->data[i] & 0x02)
 				flag = TTY_FRAME;
@@ -370,7 +370,7 @@ static void receive_chars_dma(struct esp_struct *info, int num_bytes)
 static inline void receive_chars_dma_done(struct esp_struct *info,
 					    int status)
 {
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	int num_bytes;
 	unsigned long flags;
 
@@ -396,7 +396,7 @@ static inline void receive_chars_dma_done(struct esp_struct *info,
 			if (status & 0x10) {
 				statflag = TTY_BREAK;
 				(info->icount.brk)++;
-				if (info->flags & ASYNC_SAK)
+				if (info->port.flags & ASYNC_SAK)
 					do_SAK(tty);
 			} else if (status & 0x08) {
 				statflag = TTY_FRAME;
@@ -451,7 +451,7 @@ static inline void transmit_chars_pio(struct esp_struct *info,
 
 		for (i = 0; i < space_avail - 1; i += 2) {
 			outw(*((unsigned short *)(pio_buf->data + i)),
-			     info->port + UART_ESI_TX);
+			     info->io_port + UART_ESI_TX);
 		}
 
 		if (space_avail & 0x0001)
@@ -470,8 +470,8 @@ static inline void transmit_chars_pio(struct esp_struct *info,
 	}
 
 	if (info->xmit_cnt < WAKEUP_CHARS) {
-		if (info->tty)
-			tty_wakeup(info->tty);
+		if (info->port.tty)
+			tty_wakeup(info->port.tty);
 
 #ifdef SERIAL_DEBUG_INTR
 		printk("THRE...");
@@ -507,8 +507,8 @@ static inline void transmit_chars_dma(struct esp_struct *info, int num_bytes)
 	info->xmit_tail = (info->xmit_tail + dma_bytes) & (ESP_XMIT_SIZE - 1);
 
 	if (info->xmit_cnt < WAKEUP_CHARS) {
-		if (info->tty)
-			tty_wakeup(info->tty);
+		if (info->port.tty)
+			tty_wakeup(info->port.tty);
 
 #ifdef SERIAL_DEBUG_INTR
 		printk("THRE...");
@@ -575,18 +575,18 @@ static void check_modem_status(struct esp_struct *info)
 		wake_up_interruptible(&info->delta_msr_wait);
 	}
 
-	if ((info->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
+	if ((info->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
 #if (defined(SERIAL_DEBUG_OPEN) || defined(SERIAL_DEBUG_INTR))
 		printk("ttys%d CD now %s...", info->line,
 		       (status & UART_MSR_DCD) ? "on" : "off");
 #endif
 		if (status & UART_MSR_DCD)
-			wake_up_interruptible(&info->open_wait);
+			wake_up_interruptible(&info->port.open_wait);
 		else {
 #ifdef SERIAL_DEBUG_OPEN
 			printk("scheduling hangup...");
 #endif
-			tty_hangup(info->tty);
+			tty_hangup(info->port.tty);
 		}
 	}
 }
@@ -609,7 +609,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
 
 	spin_lock(&info->lock);
 
-	if (!info->tty) {
+	if (!info->port.tty) {
 		spin_unlock(&info->lock);
 		return IRQ_NONE;
 	}
@@ -647,7 +647,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
 		num_bytes = serial_in(info, UART_ESI_STAT1) << 8;
 		num_bytes |= serial_in(info, UART_ESI_STAT2);
 
-		num_bytes = tty_buffer_request_room(info->tty, num_bytes);
+		num_bytes = tty_buffer_request_room(info->port.tty, num_bytes);
 
 		if (num_bytes) {
 			if (dma_bytes ||
@@ -661,7 +661,7 @@ static irqreturn_t rs_interrupt_single(int irq, void *dev_id)
 
 	if (!(info->stat_flags & (ESP_STAT_DMA_RX | ESP_STAT_DMA_TX)) &&
 	    (scratch & 0x02) && (info->IER & UART_IER_THRI)) {
-		if ((info->xmit_cnt <= 0) || info->tty->stopped) {
+		if ((info->xmit_cnt <= 0) || info->port.tty->stopped) {
 			info->IER &= ~UART_IER_THRI;
 			serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
 			serial_out(info, UART_ESI_CMD2, info->IER);
@@ -782,7 +782,7 @@ static int startup(struct esp_struct *info)
 
 	spin_lock_irqsave(&info->lock, flags);
 
-	if (info->flags & ASYNC_INITIALIZED)
+	if (info->port.flags & ASYNC_INITIALIZED)
 		goto out;
 
 	if (!info->xmit_buf) {
@@ -806,7 +806,7 @@ static int startup(struct esp_struct *info)
 	num_chars |= serial_in(info, UART_ESI_STAT2);
 
 	while (num_chars > 1) {
-		inw(info->port + UART_ESI_RX);
+		inw(info->io_port + UART_ESI_RX);
 		num_chars -= 2;
 	}
 
@@ -834,9 +834,9 @@ static int startup(struct esp_struct *info)
 
 	if (retval) {
 		if (capable(CAP_SYS_ADMIN)) {
-			if (info->tty)
+			if (info->port.tty)
 				set_bit(TTY_IO_ERROR,
-					&info->tty->flags);
+					&info->port.tty->flags);
 			retval = 0;
 		}
 		goto out_unlocked;
@@ -874,30 +874,30 @@ static int startup(struct esp_struct *info)
 	serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
 	serial_out(info, UART_ESI_CMD2, info->IER);
 
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
 	spin_unlock_irqrestore(&info->lock, flags);
 
 	/*
 	 * Set up the tty->alt_speed kludge
 	 */
-	if (info->tty) {
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-			info->tty->alt_speed = 57600;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-			info->tty->alt_speed = 115200;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-			info->tty->alt_speed = 230400;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-			info->tty->alt_speed = 460800;
+	if (info->port.tty) {
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+			info->port.tty->alt_speed = 57600;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+			info->port.tty->alt_speed = 115200;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+			info->port.tty->alt_speed = 230400;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+			info->port.tty->alt_speed = 460800;
 	}
 
 	/*
 	 * set the speed of the serial port
 	 */
 	change_speed(info);
-	info->flags |= ASYNC_INITIALIZED;
+	info->port.flags |= ASYNC_INITIALIZED;
 	return 0;
 
 out:
@@ -914,7 +914,7 @@ static void shutdown(struct esp_struct *info)
 {
 	unsigned long	flags, f;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 #ifdef SERIAL_DEBUG_OPEN
@@ -951,7 +951,7 @@ static void shutdown(struct esp_struct *info)
 
 		while (current_port) {
 			if ((current_port != info) &&
-			    (current_port->flags & ASYNC_INITIALIZED))
+			    (current_port->port.flags & ASYNC_INITIALIZED))
 				break;
 
 			current_port = current_port->next_port;
@@ -974,7 +974,7 @@ static void shutdown(struct esp_struct *info)
 	serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
 	serial_out(info, UART_ESI_CMD2, 0x00);
 
-	if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+	if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL))
 		info->MCR &= ~(UART_MCR_DTR|UART_MCR_RTS);
 
 	info->MCR &= ~UART_MCR_OUT2;
@@ -982,10 +982,10 @@ static void shutdown(struct esp_struct *info)
 	serial_out(info, UART_ESI_CMD2, UART_MCR);
 	serial_out(info, UART_ESI_CMD2, info->MCR);
 
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags &= ~ASYNC_INITIALIZED;
+	info->port.flags &= ~ASYNC_INITIALIZED;
 	spin_unlock_irqrestore(&info->lock, flags);
 }
 
@@ -1002,10 +1002,10 @@ static void change_speed(struct esp_struct *info)
 	unsigned char flow1 = 0, flow2 = 0;
 	unsigned long flags;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return;
-	cflag = info->tty->termios->c_cflag;
-	port = info->port;
+	cflag = info->port.tty->termios->c_cflag;
+	port = info->io_port;
 
 	/* byte size and parity */
 	switch (cflag & CSIZE) {
@@ -1029,9 +1029,9 @@ static void change_speed(struct esp_struct *info)
 	if (cflag & CMSPAR)
 		cval |= UART_LCR_SPAR;
 #endif
-	baud = tty_get_baud_rate(info->tty);
+	baud = tty_get_baud_rate(info->port.tty);
 	if (baud == 38400 &&
-		((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
+		((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST))
 		quot = info->custom_divisor;
 	else {
 		if (baud == 134) /* Special case since 134 is really 134.5 */
@@ -1046,49 +1046,49 @@ static void change_speed(struct esp_struct *info)
 	if (baud) {
 		/* Actual rate */
 		baud = BASE_BAUD/quot;
-		tty_encode_baud_rate(info->tty, baud, baud);
+		tty_encode_baud_rate(info->port.tty, baud, baud);
 	}
 	info->timeout = ((1024 * HZ * bits * quot) / BASE_BAUD) + (HZ / 50);
 
 	/* CTS flow control flag and modem status interrupts */
 	/* info->IER &= ~UART_IER_MSI; */
 	if (cflag & CRTSCTS) {
-		info->flags |= ASYNC_CTS_FLOW;
+		info->port.flags |= ASYNC_CTS_FLOW;
 		/* info->IER |= UART_IER_MSI; */
 		flow1 = 0x04;
 		flow2 = 0x10;
 	} else
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 	if (cflag & CLOCAL)
-		info->flags &= ~ASYNC_CHECK_CD;
+		info->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		info->flags |= ASYNC_CHECK_CD;
+		info->port.flags |= ASYNC_CHECK_CD;
 
 	/*
 	 * Set up parity check flag
 	 */
 	info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
 		info->read_status_mask |= UART_LSR_BI;
 
 	info->ignore_status_mask = 0;
 #if 0
 	/* This should be safe, but for some broken bits of hardware... */
-	if (I_IGNPAR(info->tty)) {
+	if (I_IGNPAR(info->port.tty)) {
 		info->ignore_status_mask |= UART_LSR_PE | UART_LSR_FE;
 		info->read_status_mask |= UART_LSR_PE | UART_LSR_FE;
 	}
 #endif
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask |= UART_LSR_BI;
 		info->read_status_mask |= UART_LSR_BI;
 		/*
 		 * If we're ignore parity and break indicators, ignore
 		 * overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty)) {
+		if (I_IGNPAR(info->port.tty)) {
 			info->ignore_status_mask |= UART_LSR_OE | \
 				UART_LSR_PE | UART_LSR_FE;
 			info->read_status_mask |= UART_LSR_OE | \
@@ -1096,7 +1096,7 @@ static void change_speed(struct esp_struct *info)
 		}
 	}
 
-	if (I_IXOFF(info->tty))
+	if (I_IXOFF(info->port.tty))
 		flow1 |= 0x81;
 
 	spin_lock_irqsave(&info->lock, flags);
@@ -1116,10 +1116,10 @@ static void change_speed(struct esp_struct *info)
 	serial_out(info, UART_ESI_CMD2, flow2);
 
 	/* set flow control characters (XON/XOFF only) */
-	if (I_IXOFF(info->tty)) {
+	if (I_IXOFF(info->port.tty)) {
 		serial_out(info, UART_ESI_CMD1, ESI_SET_FLOW_CHARS);
-		serial_out(info, UART_ESI_CMD2, START_CHAR(info->tty));
-		serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->tty));
+		serial_out(info, UART_ESI_CMD2, START_CHAR(info->port.tty));
+		serial_out(info, UART_ESI_CMD2, STOP_CHAR(info->port.tty));
 		serial_out(info, UART_ESI_CMD2, 0x10);
 		serial_out(info, UART_ESI_CMD2, 0x21);
 		switch (cflag & CSIZE) {
@@ -1355,9 +1355,9 @@ static int get_serial_info(struct esp_struct *info,
 	memset(&tmp, 0, sizeof(tmp));
 	tmp.type = PORT_16550A;
 	tmp.line = info->line;
-	tmp.port = info->port;
+	tmp.port = info->io_port;
 	tmp.irq = info->irq;
-	tmp.flags = info->flags;
+	tmp.flags = info->port.flags;
 	tmp.xmit_fifo_size = 1024;
 	tmp.baud_base = BASE_BAUD;
 	tmp.close_delay = info->close_delay;
@@ -1407,7 +1407,7 @@ static int set_serial_info(struct esp_struct *info,
 
 	if ((new_serial.type != PORT_16550A) ||
 	    (new_serial.hub6) ||
-	    (info->port != new_serial.port) ||
+	    (info->io_port != new_serial.port) ||
 	    (new_serial.baud_base != BASE_BAUD) ||
 	    (new_serial.irq > 15) ||
 	    (new_serial.irq < 2) ||
@@ -1425,9 +1425,9 @@ static int set_serial_info(struct esp_struct *info,
 		if (change_irq ||
 		    (new_serial.close_delay != info->close_delay) ||
 		    ((new_serial.flags & ~ASYNC_USR_MASK) !=
-		     (info->flags & ~ASYNC_USR_MASK)))
+		     (info->port.flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
-		info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+		info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
 			       (new_serial.flags & ASYNC_USR_MASK));
 		info->custom_divisor = new_serial.custom_divisor;
 	} else {
@@ -1441,9 +1441,9 @@ static int set_serial_info(struct esp_struct *info,
 				if ((current_async->line >= info->line) &&
 				    (current_async->line < (info->line + 8))) {
 					if (current_async == info) {
-						if (current_async->count > 1)
+						if (current_async->port.count > 1)
 							return -EBUSY;
-					} else if (current_async->count)
+					} else if (current_async->port.count)
 						return -EBUSY;
 				}
 
@@ -1456,7 +1456,7 @@ static int set_serial_info(struct esp_struct *info,
 		 * At this point, we start making changes.....
 		 */
 
-		info->flags = ((info->flags & ~ASYNC_FLAGS) |
+		info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
 			       (new_serial.flags & ASYNC_FLAGS));
 		info->custom_divisor = new_serial.custom_divisor;
 		info->close_delay = new_serial.close_delay * HZ/100;
@@ -1487,18 +1487,18 @@ static int set_serial_info(struct esp_struct *info,
 		}
 	}
 
-	if (info->flags & ASYNC_INITIALIZED) {
-		if (((old_info.flags & ASYNC_SPD_MASK) !=
-		     (info->flags & ASYNC_SPD_MASK)) ||
+	if (info->port.flags & ASYNC_INITIALIZED) {
+		if (((old_info.port.flags & ASYNC_SPD_MASK) !=
+		     (info->port.flags & ASYNC_SPD_MASK)) ||
 		    (old_info.custom_divisor != info->custom_divisor)) {
-			if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
-				info->tty->alt_speed = 57600;
-			if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
-				info->tty->alt_speed = 115200;
-			if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
-				info->tty->alt_speed = 230400;
-			if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
-				info->tty->alt_speed = 460800;
+			if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+				info->port.tty->alt_speed = 57600;
+			if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+				info->port.tty->alt_speed = 115200;
+			if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+				info->port.tty->alt_speed = 230400;
+			if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+				info->port.tty->alt_speed = 460800;
 			change_speed(info);
 		}
 	} else
@@ -1554,9 +1554,9 @@ static int set_esp_config(struct esp_struct *info,
 
 			while (current_async) {
 				if (current_async == info) {
-					if (current_async->count > 1)
+					if (current_async->port.count > 1)
 						return -EBUSY;
-				} else if (current_async->count)
+				} else if (current_async->port.count)
 					return -EBUSY;
 
 				current_async = current_async->next_port;
@@ -1578,7 +1578,7 @@ static int set_esp_config(struct esp_struct *info,
 			spin_unlock_irqrestore(&info->lock, flags);
 		} else {
 			/* DMA mode to PIO mode only */
-			if (info->count > 1)
+			if (info->port.count > 1)
 				return -EBUSY;
 
 			shutdown(info);
@@ -1634,7 +1634,7 @@ static int set_esp_config(struct esp_struct *info,
 		spin_unlock_irqrestore(&info->lock, flags);
 	}
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		retval = startup(info);
 
 	return retval;
@@ -1917,9 +1917,9 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
 
 #ifdef SERIAL_DEBUG_OPEN
 	printk(KERN_DEBUG "rs_close ttys%d, count = %d\n",
-						info->line, info->count);
+						info->line, info->port.count);
 #endif
-	if (tty->count == 1 && info->count != 1) {
+	if (tty->count == 1 && info->port.count != 1) {
 		/*
 		 * Uh, oh.  tty->count is 1, which means that the tty
 		 * structure will be freed.  Info->count should always
@@ -1927,19 +1927,19 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
 		 * one, we've got real problems, since it means the
 		 * serial port won't be shutdown.
 		 */
-		printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->count is %d\n", info->count);
-		info->count = 1;
+		printk(KERN_DEBUG "rs_close: bad serial port count; tty->count is 1, info->port.count is %d\n", info->port.count);
+		info->port.count = 1;
 	}
-	if (--info->count < 0) {
+	if (--info->port.count < 0) {
 		printk(KERN_ERR "rs_close: bad serial port count for ttys%d: %d\n",
-		       info->line, info->count);
-		info->count = 0;
+		       info->line, info->port.count);
+		info->port.count = 0;
 	}
-	if (info->count) {
+	if (info->port.count) {
 		DBG_CNT("before DEC-2");
 		goto out;
 	}
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 
 	spin_unlock_irqrestore(&info->lock, flags);
 	/*
@@ -1958,7 +1958,7 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
 	/* info->IER &= ~UART_IER_RLSI; */
 	info->IER &= ~UART_IER_RDI;
 	info->read_status_mask &= ~UART_LSR_DR;
-	if (info->flags & ASYNC_INITIALIZED) {
+	if (info->port.flags & ASYNC_INITIALIZED) {
 
 		spin_lock_irqsave(&info->lock, flags);
 		serial_out(info, UART_ESI_CMD1, ESI_SET_SRV_MASK);
@@ -1981,15 +1981,15 @@ static void rs_close(struct tty_struct *tty, struct file *filp)
 	rs_flush_buffer(tty);
 	tty_ldisc_flush(tty);
 	tty->closing = 0;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
-	if (info->blocked_open) {
+	if (info->port.blocked_open) {
 		if (info->close_delay)
 			msleep_interruptible(jiffies_to_msecs(info->close_delay));
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&info->close_wait);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	wake_up_interruptible(&info->port.close_wait);
 	return;
 
 out:
@@ -2047,10 +2047,10 @@ static void esp_hangup(struct tty_struct *tty)
 
 	rs_flush_buffer(tty);
 	shutdown(info);
-	info->count = 0;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
-	wake_up_interruptible(&info->open_wait);
+	info->port.count = 0;
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	info->port.tty = NULL;
+	wake_up_interruptible(&info->port.open_wait);
 }
 
 /*
@@ -2071,11 +2071,11 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 * until it's done, and then try again.
 	 */
 	if (tty_hung_up_p(filp) ||
-	    (info->flags & ASYNC_CLOSING)) {
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
+	    (info->port.flags & ASYNC_CLOSING)) {
+		if (info->port.flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->port.close_wait);
 #ifdef SERIAL_DO_RESTART
-		if (info->flags & ASYNC_HUP_NOTIFY)
+		if (info->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		else
 			return -ERESTARTSYS;
@@ -2090,7 +2090,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -2100,20 +2100,20 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	/*
 	 * Block waiting for the carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
+	 * this loop, info->port.count is dropped by one, so that
 	 * rs_close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 #ifdef SERIAL_DEBUG_OPEN
 	printk(KERN_DEBUG "block_til_ready before block: ttys%d, count = %d\n",
-	       info->line, info->count);
+	       info->line, info->port.count);
 #endif
 	spin_lock_irqsave(&info->lock, flags);
 	if (!tty_hung_up_p(filp))
-		info->count--;
-	info->blocked_open++;
+		info->port.count--;
+	info->port.blocked_open++;
 	while (1) {
 		if ((tty->termios->c_cflag & CBAUD)) {
 			unsigned int scratch;
@@ -2128,9 +2128,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		}
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (tty_hung_up_p(filp) ||
-		    !(info->flags & ASYNC_INITIALIZED)) {
+		    !(info->port.flags & ASYNC_INITIALIZED)) {
 #ifdef SERIAL_DO_RESTART
-			if (info->flags & ASYNC_HUP_NOTIFY)
+			if (info->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
@@ -2144,7 +2144,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		if (serial_in(info, UART_ESI_STAT2) & UART_MSR_DCD)
 			do_clocal = 1;
 
-		if (!(info->flags & ASYNC_CLOSING) &&
+		if (!(info->port.flags & ASYNC_CLOSING) &&
 		    (do_clocal))
 			break;
 		if (signal_pending(current)) {
@@ -2153,25 +2153,25 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		}
 #ifdef SERIAL_DEBUG_OPEN
 		printk(KERN_DEBUG "block_til_ready blocking: ttys%d, count = %d\n",
-		       info->line, info->count);
+		       info->line, info->port.count);
 #endif
 		spin_unlock_irqrestore(&info->lock, flags);
 		schedule();
 		spin_lock_irqsave(&info->lock, flags);
 	}
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 	if (!tty_hung_up_p(filp))
-		info->count++;
-	info->blocked_open--;
+		info->port.count++;
+	info->port.blocked_open--;
 	spin_unlock_irqrestore(&info->lock, flags);
 #ifdef SERIAL_DEBUG_OPEN
 	printk(KERN_DEBUG "block_til_ready after blocking: ttys%d, count = %d\n",
-	       info->line, info->count);
+	       info->line, info->port.count);
 #endif
 	if (retval)
 		return retval;
-	info->flags |= ASYNC_NORMAL_ACTIVE;
+	info->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
@@ -2204,12 +2204,12 @@ static int esp_open(struct tty_struct *tty, struct file *filp)
 	}
 
 #ifdef SERIAL_DEBUG_OPEN
-	printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->count);
+	printk(KERN_DEBUG "esp_open %s, count = %d\n", tty->name, info->port.count);
 #endif
 	spin_lock_irqsave(&info->lock, flags);
-	info->count++;
+	info->port.count++;
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 
 	spin_unlock_irqrestore(&info->lock, flags);
 
@@ -2263,7 +2263,7 @@ static int autoconfig(struct esp_struct *info)
 	int port_detected = 0;
 	unsigned long flags;
 
-	if (!request_region(info->port, REGION_SIZE, "esp serial"))
+	if (!request_region(info->io_port, REGION_SIZE, "esp serial"))
 		return -EIO;
 
 	spin_lock_irqsave(&info->lock, flags);
@@ -2300,7 +2300,7 @@ static int autoconfig(struct esp_struct *info)
 		}
 	}
 	if (!port_detected)
-		release_region(info->port, REGION_SIZE);
+		release_region(info->io_port, REGION_SIZE);
 
 	spin_unlock_irqrestore(&info->lock, flags);
 	return (port_detected);
@@ -2414,7 +2414,7 @@ static int __init espserial_init(void)
 	offset = 0;
 
 	do {
-		info->port = esp[i] + offset;
+		info->io_port = esp[i] + offset;
 		info->irq = irq[i];
 		info->line = (i * 8) + (offset / 8);
 
@@ -2425,9 +2425,9 @@ static int __init espserial_init(void)
 		}
 
 		info->custom_divisor = (divisor[i] >> (offset / 2)) & 0xf;
-		info->flags = STD_COM_FLAGS;
+		info->port.flags = STD_COM_FLAGS;
 		if (info->custom_divisor)
-			info->flags |= ASYNC_SPD_CUST;
+			info->port.flags |= ASYNC_SPD_CUST;
 		info->magic = ESP_MAGIC;
 		info->close_delay = 5*HZ/10;
 		info->closing_wait = 30*HZ;
@@ -2436,13 +2436,13 @@ static int __init espserial_init(void)
 		info->config.flow_off = flow_off;
 		info->config.pio_threshold = pio_threshold;
 		info->next_port = ports;
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
+		init_waitqueue_head(&info->port.open_wait);
+		init_waitqueue_head(&info->port.close_wait);
 		init_waitqueue_head(&info->delta_msr_wait);
 		init_waitqueue_head(&info->break_wait);
 		ports = info;
 		printk(KERN_INFO "ttyP%d at 0x%04x (irq = %d) is an ESP ",
-			info->line, info->port, info->irq);
+			info->line, info->io_port, info->irq);
 
 		if (info->line % 8) {
 			printk("secondary port\n");
@@ -2498,8 +2498,8 @@ static void __exit espserial_exit(void)
 	put_tty_driver(esp_driver);
 
 	while (ports) {
-		if (ports->port)
-			release_region(ports->port, REGION_SIZE);
+		if (ports->io_port)
+			release_region(ports->io_port, REGION_SIZE);
 		temp_async = ports->next_port;
 		kfree(ports);
 		ports = temp_async;
diff --git a/drivers/char/generic_serial.c b/drivers/char/generic_serial.c
index 252f73e48596..19d3afb0e50c 100644
--- a/drivers/char/generic_serial.c
+++ b/drivers/char/generic_serial.c
@@ -60,7 +60,7 @@ int gs_put_char(struct tty_struct * tty, unsigned char ch)
 
 	if (!port) return 0;
 
-	if (! (port->flags & ASYNC_INITIALIZED)) return 0;
+	if (! (port->port.flags & ASYNC_INITIALIZED)) return 0;
 
 	/* Take a lock on the serial tranmit buffer! */
 	mutex_lock(& port->port_write_mutex);
@@ -103,7 +103,7 @@ int gs_write(struct tty_struct * tty,
 
 	if (!port) return 0;
 
-	if (! (port->flags & ASYNC_INITIALIZED))
+	if (! (port->port.flags & ASYNC_INITIALIZED))
 		return 0;
 
 	/* get exclusive "write" access to this port (problem 3) */
@@ -141,13 +141,13 @@ int gs_write(struct tty_struct * tty,
 	mutex_unlock(& port->port_write_mutex);
 
 	gs_dprintk (GS_DEBUG_WRITE, "write: interrupts are %s\n", 
-	            (port->flags & GS_TX_INTEN)?"enabled": "disabled"); 
+	            (port->port.flags & GS_TX_INTEN)?"enabled": "disabled");
 
 	if (port->xmit_cnt && 
 	    !tty->stopped && 
 	    !tty->hw_stopped &&
-	    !(port->flags & GS_TX_INTEN)) {
-		port->flags |= GS_TX_INTEN;
+	    !(port->port.flags & GS_TX_INTEN)) {
+		port->port.flags |= GS_TX_INTEN;
 		port->rd->enable_tx_interrupts (port);
 	}
 	func_exit ();
@@ -208,7 +208,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
 	gs_dprintk (GS_DEBUG_FLUSH, "port=%p.\n", port);
 	if (port) {
 		gs_dprintk (GS_DEBUG_FLUSH, "xmit_cnt=%x, xmit_buf=%p, tty=%p.\n", 
-		port->xmit_cnt, port->xmit_buf, port->tty);
+		port->xmit_cnt, port->xmit_buf, port->port.tty);
 	}
 
 	if (!port || port->xmit_cnt < 0 || !port->xmit_buf) {
@@ -217,7 +217,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
 		return -EINVAL;  /* This is an error which we don't know how to handle. */
 	}
 
-	rcib = gs_real_chars_in_buffer(port->tty);
+	rcib = gs_real_chars_in_buffer(port->port.tty);
 
 	if(rcib <= 0) {
 		gs_dprintk (GS_DEBUG_FLUSH, "nothing to wait for.\n");
@@ -236,7 +236,7 @@ static int gs_wait_tx_flushed (void * ptr, unsigned long timeout)
 
 	/* the expression is actually jiffies < end_jiffies, but that won't
 	   work around the wraparound. Tricky eh? */
-	while ((charsleft = gs_real_chars_in_buffer (port->tty)) &&
+	while ((charsleft = gs_real_chars_in_buffer (port->port.tty)) &&
 	        time_after (end_jiffies, jiffies)) {
 		/* Units check: 
 		   chars * (bits/char) * (jiffies /sec) / (bits/sec) = jiffies!
@@ -309,7 +309,7 @@ void gs_flush_chars(struct tty_struct * tty)
 	}
 
 	/* Beats me -- REW */
-	port->flags |= GS_TX_INTEN;
+	port->port.flags |= GS_TX_INTEN;
 	port->rd->enable_tx_interrupts (port);
 	func_exit ();
 }
@@ -329,8 +329,8 @@ void gs_stop(struct tty_struct * tty)
 
 	if (port->xmit_cnt && 
 	    port->xmit_buf && 
-	    (port->flags & GS_TX_INTEN) ) {
-		port->flags &= ~GS_TX_INTEN;
+	    (port->port.flags & GS_TX_INTEN) ) {
+		port->port.flags &= ~GS_TX_INTEN;
 		port->rd->disable_tx_interrupts (port);
 	}
 	func_exit ();
@@ -349,8 +349,8 @@ void gs_start(struct tty_struct * tty)
 
 	if (port->xmit_cnt && 
 	    port->xmit_buf && 
-	    !(port->flags & GS_TX_INTEN) ) {
-		port->flags |= GS_TX_INTEN;
+	    !(port->port.flags & GS_TX_INTEN) ) {
+		port->port.flags |= GS_TX_INTEN;
 		port->rd->enable_tx_interrupts (port);
 	}
 	func_exit ();
@@ -365,7 +365,7 @@ static void gs_shutdown_port (struct gs_port *port)
 	
 	if (!port) return;
 	
-	if (!(port->flags & ASYNC_INITIALIZED))
+	if (!(port->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	spin_lock_irqsave(&port->driver_lock, flags);
@@ -375,12 +375,12 @@ static void gs_shutdown_port (struct gs_port *port)
 		port->xmit_buf = NULL;
 	}
 
-	if (port->tty)
-		set_bit(TTY_IO_ERROR, &port->tty->flags);
+	if (port->port.tty)
+		set_bit(TTY_IO_ERROR, &port->port.tty->flags);
 
 	port->rd->shutdown_port (port);
 
-	port->flags &= ~ASYNC_INITIALIZED;
+	port->port.flags &= ~ASYNC_INITIALIZED;
 	spin_unlock_irqrestore(&port->driver_lock, flags);
 
 	func_exit();
@@ -396,16 +396,16 @@ void gs_hangup(struct tty_struct *tty)
 	if (!tty) return;
 
 	port = tty->driver_data;
-	tty = port->tty;
+	tty = port->port.tty;
 	if (!tty) 
 		return;
 
 	gs_shutdown_port (port);
-	port->flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
-	port->tty = NULL;
-	port->count = 0;
+	port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|GS_ACTIVE);
+	port->port.tty = NULL;
+	port->port.count = 0;
 
-	wake_up_interruptible(&port->open_wait);
+	wake_up_interruptible(&port->port.open_wait);
 	func_exit ();
 }
 
@@ -424,7 +424,7 @@ int gs_block_til_ready(void *port_, struct file * filp)
 
 	if (!port) return 0;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 	if (!tty) return 0;
 
@@ -433,9 +433,9 @@ int gs_block_til_ready(void *port_, struct file * filp)
 	 * If the device is in the middle of being closed, then block
 	 * until it's done, and then try again.
 	 */
-	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&port->close_wait);
-		if (port->flags & ASYNC_HUP_NOTIFY)
+	if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&port->port.close_wait);
+		if (port->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		else
 			return -ERESTARTSYS;
@@ -449,7 +449,7 @@ int gs_block_til_ready(void *port_, struct file * filp)
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		port->flags |= ASYNC_NORMAL_ACTIVE;
+		port->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -461,34 +461,34 @@ int gs_block_til_ready(void *port_, struct file * filp)
 	/*
 	 * Block waiting for the carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, port->count is dropped by one, so that
+	 * this loop, port->port.count is dropped by one, so that
 	 * rs_close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 	retval = 0;
 
-	add_wait_queue(&port->open_wait, &wait);
+	add_wait_queue(&port->port.open_wait, &wait);
 
 	gs_dprintk (GS_DEBUG_BTR, "after add waitq.\n"); 
 	spin_lock_irqsave(&port->driver_lock, flags);
 	if (!tty_hung_up_p(filp)) {
-		port->count--;
+		port->port.count--;
 	}
 	spin_unlock_irqrestore(&port->driver_lock, flags);
-	port->blocked_open++;
+	port->port.blocked_open++;
 	while (1) {
 		CD = port->rd->get_CD (port);
 		gs_dprintk (GS_DEBUG_BTR, "CD is now %d.\n", CD);
 		set_current_state (TASK_INTERRUPTIBLE);
 		if (tty_hung_up_p(filp) ||
-		    !(port->flags & ASYNC_INITIALIZED)) {
-			if (port->flags & ASYNC_HUP_NOTIFY)
+		    !(port->port.flags & ASYNC_INITIALIZED)) {
+			if (port->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
 			break;
 		}
-		if (!(port->flags & ASYNC_CLOSING) &&
+		if (!(port->port.flags & ASYNC_CLOSING) &&
 		    (do_clocal || CD))
 			break;
 		gs_dprintk (GS_DEBUG_BTR, "signal_pending is now: %d (%lx)\n", 
@@ -500,17 +500,17 @@ int gs_block_til_ready(void *port_, struct file * filp)
 		schedule();
 	}
 	gs_dprintk (GS_DEBUG_BTR, "Got out of the loop. (%d)\n",
-		    port->blocked_open);
+		    port->port.blocked_open);
 	set_current_state (TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
+	remove_wait_queue(&port->port.open_wait, &wait);
 	if (!tty_hung_up_p(filp)) {
-		port->count++;
+		port->port.count++;
 	}
-	port->blocked_open--;
+	port->port.blocked_open--;
 	if (retval)
 		return retval;
 
-	port->flags |= ASYNC_NORMAL_ACTIVE;
+	port->port.flags |= ASYNC_NORMAL_ACTIVE;
 	func_exit ();
 	return 0;
 }			 
@@ -529,10 +529,10 @@ void gs_close(struct tty_struct * tty, struct file * filp)
 
 	if (!port) return;
 
-	if (!port->tty) {
+	if (!port->port.tty) {
 		/* This seems to happen when this is called from vhangup. */
-		gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->tty is NULL\n");
-		port->tty = tty;
+		gs_dprintk (GS_DEBUG_CLOSE, "gs: Odd: port->port.tty is NULL\n");
+		port->port.tty = tty;
 	}
 
 	spin_lock_irqsave(&port->driver_lock, flags);
@@ -545,23 +545,23 @@ void gs_close(struct tty_struct * tty, struct file * filp)
 		return;
 	}
 
-	if ((tty->count == 1) && (port->count != 1)) {
+	if ((tty->count == 1) && (port->port.count != 1)) {
 		printk(KERN_ERR "gs: gs_close port %p: bad port count;"
-		       " tty->count is 1, port count is %d\n", port, port->count);
-		port->count = 1;
+		       " tty->count is 1, port count is %d\n", port, port->port.count);
+		port->port.count = 1;
 	}
-	if (--port->count < 0) {
-		printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->count);
-		port->count = 0;
+	if (--port->port.count < 0) {
+		printk(KERN_ERR "gs: gs_close port %p: bad port count: %d\n", port, port->port.count);
+		port->port.count = 0;
 	}
 
-	if (port->count) {
-		gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->count);
+	if (port->port.count) {
+		gs_dprintk(GS_DEBUG_CLOSE, "gs_close port %p: count: %d\n", port, port->port.count);
 		spin_unlock_irqrestore(&port->driver_lock, flags);
 		func_exit ();
 		return;
 	}
-	port->flags |= ASYNC_CLOSING;
+	port->port.flags |= ASYNC_CLOSING;
 
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify 
@@ -585,7 +585,7 @@ void gs_close(struct tty_struct * tty, struct file * filp)
 	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
 		gs_wait_tx_flushed (port, port->closing_wait);
 
-	port->flags &= ~GS_ACTIVE;
+	port->port.flags &= ~GS_ACTIVE;
 
 	gs_flush_buffer(tty);
 
@@ -595,18 +595,18 @@ void gs_close(struct tty_struct * tty, struct file * filp)
 	port->event = 0;
 	port->rd->close (port);
 	port->rd->shutdown_port (port);
-	port->tty = NULL;
+	port->port.tty = NULL;
 
-	if (port->blocked_open) {
+	if (port->port.blocked_open) {
 		if (port->close_delay) {
 			spin_unlock_irqrestore(&port->driver_lock, flags);
 			msleep_interruptible(jiffies_to_msecs(port->close_delay));
 			spin_lock_irqsave(&port->driver_lock, flags);
 		}
-		wake_up_interruptible(&port->open_wait);
+		wake_up_interruptible(&port->port.open_wait);
 	}
-	port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
-	wake_up_interruptible(&port->close_wait);
+	port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING | ASYNC_INITIALIZED);
+	wake_up_interruptible(&port->port.close_wait);
 
 	func_exit ();
 }
@@ -626,10 +626,10 @@ void gs_set_termios (struct tty_struct * tty,
 	port = tty->driver_data;
 
 	if (!port) return;
-	if (!port->tty) {
+	if (!port->port.tty) {
 		/* This seems to happen when this is called after gs_close. */
-		gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->tty is NULL\n");
-		port->tty = tty;
+		gs_dprintk (GS_DEBUG_TERMIOS, "gs: Odd: port->port.tty is NULL\n");
+		port->port.tty = tty;
 	}
 
 
@@ -651,15 +651,15 @@ void gs_set_termios (struct tty_struct * tty,
 	baudrate = tty_get_baud_rate(tty);
 
 	if ((tiosp->c_cflag & CBAUD) == B38400) {
-		if (     (port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+		if (     (port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
 			baudrate = 57600;
-		else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+		else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
 			baudrate = 115200;
-		else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+		else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
 			baudrate = 230400;
-		else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+		else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
 			baudrate = 460800;
-		else if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+		else if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
 			baudrate = (port->baud_base / port->custom_divisor);
 	}
 
@@ -715,7 +715,7 @@ int gs_init_port(struct gs_port *port)
 
 	func_enter ();
 
-	if (port->flags & ASYNC_INITIALIZED) {
+	if (port->port.flags & ASYNC_INITIALIZED) {
 		func_exit ();
 		return 0;
 	}
@@ -737,15 +737,15 @@ int gs_init_port(struct gs_port *port)
 	}
 
 	spin_lock_irqsave (&port->driver_lock, flags);
-	if (port->tty) 
-		clear_bit(TTY_IO_ERROR, &port->tty->flags);
+	if (port->port.tty)
+		clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
 	mutex_init(&port->port_write_mutex);
 	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
 	spin_unlock_irqrestore(&port->driver_lock, flags);
-	gs_set_termios(port->tty, NULL);
+	gs_set_termios(port->port.tty, NULL);
 	spin_lock_irqsave (&port->driver_lock, flags);
-	port->flags |= ASYNC_INITIALIZED;
-	port->flags &= ~GS_TX_INTEN;
+	port->port.flags |= ASYNC_INITIALIZED;
+	port->port.flags &= ~GS_TX_INTEN;
 
 	spin_unlock_irqrestore(&port->driver_lock, flags);
 	func_exit ();
@@ -764,11 +764,11 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
 		if ((sio.baud_base != port->baud_base) ||
 		    (sio.close_delay != port->close_delay) ||
 		    ((sio.flags & ~ASYNC_USR_MASK) !=
-		     (port->flags & ~ASYNC_USR_MASK)))
+		     (port->port.flags & ~ASYNC_USR_MASK)))
 			return(-EPERM);
 	} 
 
-	port->flags = (port->flags & ~ASYNC_USR_MASK) |
+	port->port.flags = (port->port.flags & ~ASYNC_USR_MASK) |
 		(sio.flags & ASYNC_USR_MASK);
   
 	port->baud_base = sio.baud_base;
@@ -776,7 +776,7 @@ int gs_setserial(struct gs_port *port, struct serial_struct __user *sp)
 	port->closing_wait = sio.closing_wait;
 	port->custom_divisor = sio.custom_divisor;
 
-	gs_set_termios (port->tty, NULL);
+	gs_set_termios (port->port.tty, NULL);
 
 	return 0;
 }
@@ -793,7 +793,7 @@ int gs_getserial(struct gs_port *port, struct serial_struct __user *sp)
 	struct serial_struct    sio;
 
 	memset(&sio, 0, sizeof(struct serial_struct));
-	sio.flags = port->flags;
+	sio.flags = port->port.flags;
 	sio.baud_base = port->baud_base;
 	sio.close_delay = port->close_delay;
 	sio.closing_wait = port->closing_wait;
@@ -821,10 +821,10 @@ void gs_got_break(struct gs_port *port)
 {
 	func_enter ();
 
-	tty_insert_flip_char(port->tty, 0, TTY_BREAK);
-	tty_schedule_flip(port->tty);
-	if (port->flags & ASYNC_SAK) {
-		do_SAK (port->tty);
+	tty_insert_flip_char(port->port.tty, 0, TTY_BREAK);
+	tty_schedule_flip(port->port.tty);
+	if (port->port.flags & ASYNC_SAK) {
+		do_SAK (port->port.tty);
 	}
 
 	func_exit ();
diff --git a/drivers/char/ip2/i2lib.c b/drivers/char/ip2/i2lib.c
index 938879cc7bcc..0061e18aff60 100644
--- a/drivers/char/ip2/i2lib.c
+++ b/drivers/char/ip2/i2lib.c
@@ -868,11 +868,11 @@ i2Input(i2ChanStrPtr pCh)
 		amountToMove = count;
 	}
 	// Move the first block
-	pCh->pTTY->ldisc.receive_buf( pCh->pTTY, 
+	pCh->pTTY->ldisc.ops->receive_buf( pCh->pTTY,
 		 &(pCh->Ibuf[stripIndex]), NULL, amountToMove );
 	// If we needed to wrap, do the second data move
 	if (count > amountToMove) {
-		pCh->pTTY->ldisc.receive_buf( pCh->pTTY, 
+		pCh->pTTY->ldisc.ops->receive_buf( pCh->pTTY,
 		 pCh->Ibuf, NULL, count - amountToMove );
 	}
 	// Bump and wrap the stripIndex all at once by the amount of data read. This
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 9a2394cda943..5dc74404058f 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -1289,11 +1289,12 @@ static void do_input(struct work_struct *work)
 // code duplicated from n_tty (ldisc)
 static inline void  isig(int sig, struct tty_struct *tty, int flush)
 {
+	/* FIXME: This is completely bogus */
 	if (tty->pgrp)
 		kill_pgrp(tty->pgrp, sig, 1);
 	if (flush || !L_NOFLSH(tty)) {
-		if ( tty->ldisc.flush_buffer )  
-			tty->ldisc.flush_buffer(tty);
+		if ( tty->ldisc.ops->flush_buffer )  
+			tty->ldisc.ops->flush_buffer(tty);
 		i2InputFlush( tty->driver_data );
 	}
 }
@@ -1342,7 +1343,7 @@ static void do_status(struct work_struct *work)
 		}
 		tmp = pCh->pTTY->real_raw;
 		pCh->pTTY->real_raw = 0;
-		pCh->pTTY->ldisc.receive_buf( pCh->pTTY, &brkc, &brkf, 1 );
+		pCh->pTTY->ldisc->ops.receive_buf( pCh->pTTY, &brkc, &brkf, 1 );
 		pCh->pTTY->real_raw = tmp;
 	}
 #endif /* NEVER_HAPPENS_AS_SETUP_XXX */
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 4f3cefa8eb0e..d4281df10c22 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -198,17 +198,10 @@ struct	isi_board {
 
 struct	isi_port {
 	unsigned short		magic;
-	unsigned int		flags;
-	int			count;
-	int			blocked_open;
-	int			close_delay;
+	struct tty_port		port;
 	u16			channel;
 	u16			status;
-	u16			closing_wait;
 	struct isi_board	*card;
-	struct tty_struct 	*tty;
-	wait_queue_head_t	close_wait;
-	wait_queue_head_t	open_wait;
 	unsigned char		*xmit_buf;
 	int			xmit_head;
 	int			xmit_tail;
@@ -430,11 +423,11 @@ static void isicom_tx(unsigned long _data)
 
 	for (; count > 0; count--, port++) {
 		/* port not active or tx disabled to force flow control */
-		if (!(port->flags & ASYNC_INITIALIZED) ||
+		if (!(port->port.flags & ASYNC_INITIALIZED) ||
 				!(port->status & ISI_TXOK))
 			continue;
 
-		tty = port->tty;
+		tty = port->port.tty;
 
 		if (tty == NULL)
 			continue;
@@ -458,7 +451,7 @@ static void isicom_tx(unsigned long _data)
 			if (residue == YES) {
 				residue = NO;
 				if (cnt > 0) {
-					wrd |= (port->xmit_buf[port->xmit_tail]
+					wrd |= (port->port.xmit_buf[port->xmit_tail]
 									<< 8);
 					port->xmit_tail = (port->xmit_tail + 1)
 						& (SERIAL_XMIT_SIZE - 1);
@@ -474,14 +467,14 @@ static void isicom_tx(unsigned long _data)
 			if (cnt <= 0)
 				break;
 			word_count = cnt >> 1;
-			outsw(base, port->xmit_buf+port->xmit_tail, word_count);
+			outsw(base, port->port.xmit_buf+port->xmit_tail, word_count);
 			port->xmit_tail = (port->xmit_tail
 				+ (word_count << 1)) & (SERIAL_XMIT_SIZE - 1);
 			txcount -= (word_count << 1);
 			port->xmit_cnt -= (word_count << 1);
 			if (cnt & 0x0001) {
 				residue = YES;
-				wrd = port->xmit_buf[port->xmit_tail];
+				wrd = port->port.xmit_buf[port->xmit_tail];
 				port->xmit_tail = (port->xmit_tail + 1)
 					& (SERIAL_XMIT_SIZE - 1);
 				port->xmit_cnt--;
@@ -548,13 +541,13 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
 		return IRQ_HANDLED;
 	}
 	port = card->ports + channel;
-	if (!(port->flags & ASYNC_INITIALIZED)) {
+	if (!(port->port.flags & ASYNC_INITIALIZED)) {
 		outw(0x0000, base+0x04); /* enable interrupts */
 		spin_unlock(&card->card_lock);
 		return IRQ_HANDLED;
 	}
 
-	tty = port->tty;
+	tty = port->port.tty;
 	if (tty == NULL) {
 		word_count = byte_count >> 1;
 		while (byte_count > 1) {
@@ -572,7 +565,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
 		header = inw(base);
 		switch (header & 0xff) {
 		case 0:	/* Change in EIA signals */
-			if (port->flags & ASYNC_CHECK_CD) {
+			if (port->port.flags & ASYNC_CHECK_CD) {
 				if (port->status & ISI_DCD) {
 					if (!(header & ISI_DCD)) {
 					/* Carrier has been lost  */
@@ -585,7 +578,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
 				/* Carrier has been detected */
 					pr_dbg("interrupt: DCD->high.\n");
 					port->status |= ISI_DCD;
-					wake_up_interruptible(&port->open_wait);
+					wake_up_interruptible(&port->port.open_wait);
 				}
 			} else {
 				if (header & ISI_DCD)
@@ -594,17 +587,17 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
 					port->status &= ~ISI_DCD;
 			}
 
-			if (port->flags & ASYNC_CTS_FLOW) {
-				if (port->tty->hw_stopped) {
+			if (port->port.flags & ASYNC_CTS_FLOW) {
+				if (port->port.tty->hw_stopped) {
 					if (header & ISI_CTS) {
-						port->tty->hw_stopped = 0;
+						port->port.tty->hw_stopped = 0;
 						/* start tx ing */
 						port->status |= (ISI_TXOK
 							| ISI_CTS);
 						tty_wakeup(tty);
 					}
 				} else if (!(header & ISI_CTS)) {
-					port->tty->hw_stopped = 1;
+					port->port.tty->hw_stopped = 1;
 					/* stop tx ing */
 					port->status &= ~(ISI_TXOK | ISI_CTS);
 				}
@@ -629,7 +622,7 @@ static irqreturn_t isicom_interrupt(int irq, void *dev_id)
 
 		case 1:	/* Received Break !!! */
 			tty_insert_flip_char(tty, 0, TTY_BREAK);
-			if (port->flags & ASYNC_SAK)
+			if (port->port.flags & ASYNC_SAK)
 				do_SAK(tty);
 			tty_flip_buffer_push(tty);
 			break;
@@ -681,7 +674,7 @@ static void isicom_config_port(struct isi_port *port)
 		shift_count = card->shift_count;
 	unsigned char flow_ctrl;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 	if (tty == NULL)
 		return;
@@ -697,7 +690,7 @@ static void isicom_config_port(struct isi_port *port)
 
 		/* 1,2,3,4 => 57.6, 115.2, 230, 460 kbps resp. */
 		if (baud < 1 || baud > 4)
-			port->tty->termios->c_cflag &= ~CBAUDEX;
+			port->port.tty->termios->c_cflag &= ~CBAUDEX;
 		else
 			baud += 15;
 	}
@@ -708,13 +701,13 @@ static void isicom_config_port(struct isi_port *port)
 		 *  the 'setserial' utility.
 		 */
 
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
 			baud++; /*  57.6 Kbps */
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
 			baud += 2; /*  115  Kbps */
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
 			baud += 3; /* 230 kbps*/
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
 			baud += 4; /* 460 kbps*/
 	}
 	if (linuxb_to_isib[baud] == -1) {
@@ -754,15 +747,15 @@ static void isicom_config_port(struct isi_port *port)
 		InterruptTheCard(base);
 	}
 	if (C_CLOCAL(tty))
-		port->flags &= ~ASYNC_CHECK_CD;
+		port->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		port->flags |= ASYNC_CHECK_CD;
+		port->port.flags |= ASYNC_CHECK_CD;
 
 	/* flow control settings ...*/
 	flow_ctrl = 0;
-	port->flags &= ~ASYNC_CTS_FLOW;
+	port->port.flags &= ~ASYNC_CTS_FLOW;
 	if (C_CRTSCTS(tty)) {
-		port->flags |= ASYNC_CTS_FLOW;
+		port->port.flags |= ASYNC_CTS_FLOW;
 		flow_ctrl |= ISICOM_CTSRTS;
 	}
 	if (I_IXON(tty))
@@ -809,23 +802,15 @@ static int isicom_setup_port(struct isi_port *port)
 	struct isi_board *card = port->card;
 	unsigned long flags;
 
-	if (port->flags & ASYNC_INITIALIZED)
+	if (port->port.flags & ASYNC_INITIALIZED)
 		return 0;
-	if (!port->xmit_buf) {
-		/* Relies on BKL */
-		unsigned long page  = get_zeroed_page(GFP_KERNEL);
-		if (page == 0)
-			return -ENOMEM;
-		if (port->xmit_buf)
-			free_page(page);
-		else
-			port->xmit_buf = (unsigned char *) page;
-	}
+	if (tty_port_alloc_xmit_buf(&port->port) < 0)
+		return -ENOMEM;
 
 	spin_lock_irqsave(&card->card_lock, flags);
-	if (port->tty)
-		clear_bit(TTY_IO_ERROR, &port->tty->flags);
-	if (port->count == 1)
+	if (port->port.tty)
+		clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
+	if (port->port.count == 1)
 		card->count++;
 
 	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
@@ -839,7 +824,7 @@ static int isicom_setup_port(struct isi_port *port)
 	}
 
 	isicom_config_port(port);
-	port->flags |= ASYNC_INITIALIZED;
+	port->port.flags |= ASYNC_INITIALIZED;
 	spin_unlock_irqrestore(&card->card_lock, flags);
 
 	return 0;
@@ -855,10 +840,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	/* block if port is in the process of being closed */
 
-	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
+	if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
 		pr_dbg("block_til_ready: close in progress.\n");
-		interruptible_sleep_on(&port->close_wait);
-		if (port->flags & ASYNC_HUP_NOTIFY)
+		interruptible_sleep_on(&port->port.close_wait);
+		if (port->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		else
 			return -ERESTARTSYS;
@@ -869,7 +854,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	if ((filp->f_flags & O_NONBLOCK) ||
 			(tty->flags & (1 << TTY_IO_ERROR))) {
 		pr_dbg("block_til_ready: non-block mode.\n");
-		port->flags |= ASYNC_NORMAL_ACTIVE;
+		port->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -879,26 +864,26 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	/* block waiting for DCD to be asserted, and while
 						callout dev is busy */
 	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
+	add_wait_queue(&port->port.open_wait, &wait);
 
 	spin_lock_irqsave(&card->card_lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count--;
-	port->blocked_open++;
+		port->port.count--;
+	port->port.blocked_open++;
 	spin_unlock_irqrestore(&card->card_lock, flags);
 
 	while (1) {
 		raise_dtr_rts(port);
 
 		set_current_state(TASK_INTERRUPTIBLE);
-		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
-			if (port->flags & ASYNC_HUP_NOTIFY)
+		if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) {
+			if (port->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
 			break;
 		}
-		if (!(port->flags & ASYNC_CLOSING) &&
+		if (!(port->port.flags & ASYNC_CLOSING) &&
 				(do_clocal || (port->status & ISI_DCD))) {
 			break;
 		}
@@ -909,15 +894,15 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		schedule();
 	}
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
+	remove_wait_queue(&port->port.open_wait, &wait);
 	spin_lock_irqsave(&card->card_lock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count++;
-	port->blocked_open--;
+		port->port.count++;
+	port->port.blocked_open--;
 	spin_unlock_irqrestore(&card->card_lock, flags);
 	if (retval)
 		return retval;
-	port->flags |= ASYNC_NORMAL_ACTIVE;
+	port->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
@@ -947,9 +932,9 @@ static int isicom_open(struct tty_struct *tty, struct file *filp)
 
 	isicom_setup_board(card);
 
-	port->count++;
+	port->port.count++;
 	tty->driver_data = port;
-	port->tty = tty;
+	port->port.tty = tty;
 	error = isicom_setup_port(port);
 	if (error == 0)
 		error = block_til_ready(tty, filp, port);
@@ -970,18 +955,15 @@ static void isicom_shutdown_port(struct isi_port *port)
 	struct isi_board *card = port->card;
 	struct tty_struct *tty;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
-	if (!(port->flags & ASYNC_INITIALIZED))
+	if (!(port->port.flags & ASYNC_INITIALIZED))
 		return;
 
-	if (port->xmit_buf) {
-		free_page((unsigned long) port->xmit_buf);
-		port->xmit_buf = NULL;
-	}
-	port->flags &= ~ASYNC_INITIALIZED;
+	tty_port_free_xmit_buf(&port->port);
+	port->port.flags &= ~ASYNC_INITIALIZED;
 	/* 3rd October 2000 : Vinayak P Risbud */
-	port->tty = NULL;
+	port->port.tty = NULL;
 
 	/*Fix done by Anil .S on 30-04-2001
 	remote login through isi port has dtr toggle problem
@@ -1046,33 +1028,33 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
 		return;
 	}
 
-	if (tty->count == 1 && port->count != 1) {
+	if (tty->count == 1 && port->port.count != 1) {
 		printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port "
 			"count tty->count = 1 port count = %d.\n",
-			card->base, port->count);
-		port->count = 1;
+			card->base, port->port.count);
+		port->port.count = 1;
 	}
-	if (--port->count < 0) {
+	if (--port->port.count < 0) {
 		printk(KERN_WARNING "ISICOM:(0x%lx) isicom_close: bad port "
 			"count for channel%d = %d", card->base, port->channel,
-			port->count);
-		port->count = 0;
+			port->port.count);
+		port->port.count = 0;
 	}
 
-	if (port->count) {
+	if (port->port.count) {
 		spin_unlock_irqrestore(&card->card_lock, flags);
 		return;
 	}
-	port->flags |= ASYNC_CLOSING;
+	port->port.flags |= ASYNC_CLOSING;
 	tty->closing = 1;
 	spin_unlock_irqrestore(&card->card_lock, flags);
 
-	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, port->closing_wait);
+	if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
+		tty_wait_until_sent(tty, port->port.closing_wait);
 	/* indicate to the card that no more data can be received
 	   on this port */
 	spin_lock_irqsave(&card->card_lock, flags);
-	if (port->flags & ASYNC_INITIALIZED) {
+	if (port->port.flags & ASYNC_INITIALIZED) {
 		card->port_status &= ~(1 << port->channel);
 		outw(card->port_status, card->base + 0x02);
 	}
@@ -1085,18 +1067,18 @@ static void isicom_close(struct tty_struct *tty, struct file *filp)
 	spin_lock_irqsave(&card->card_lock, flags);
 	tty->closing = 0;
 
-	if (port->blocked_open) {
+	if (port->port.blocked_open) {
 		spin_unlock_irqrestore(&card->card_lock, flags);
-		if (port->close_delay) {
+		if (port->port.close_delay) {
 			pr_dbg("scheduling until time out.\n");
 			msleep_interruptible(
-				jiffies_to_msecs(port->close_delay));
+				jiffies_to_msecs(port->port.close_delay));
 		}
 		spin_lock_irqsave(&card->card_lock, flags);
-		wake_up_interruptible(&port->open_wait);
+		wake_up_interruptible(&port->port.open_wait);
 	}
-	port->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
-	wake_up_interruptible(&port->close_wait);
+	port->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+	wake_up_interruptible(&port->port.close_wait);
 	spin_unlock_irqrestore(&card->card_lock, flags);
 }
 
@@ -1112,9 +1094,6 @@ static int isicom_write(struct tty_struct *tty,	const unsigned char *buf,
 	if (isicom_paranoia_check(port, tty->name, "isicom_write"))
 		return 0;
 
-	if (!port->xmit_buf)
-		return 0;
-
 	spin_lock_irqsave(&card->card_lock, flags);
 
 	while (1) {
@@ -1123,7 +1102,7 @@ static int isicom_write(struct tty_struct *tty,	const unsigned char *buf,
 		if (cnt <= 0)
 			break;
 
-		memcpy(port->xmit_buf + port->xmit_head, buf, cnt);
+		memcpy(port->port.xmit_buf + port->xmit_head, buf, cnt);
 		port->xmit_head = (port->xmit_head + cnt) & (SERIAL_XMIT_SIZE
 			- 1);
 		port->xmit_cnt += cnt;
@@ -1147,16 +1126,13 @@ static int isicom_put_char(struct tty_struct *tty, unsigned char ch)
 	if (isicom_paranoia_check(port, tty->name, "isicom_put_char"))
 		return 0;
 
-	if (!port->xmit_buf)
-		return 0;
-
 	spin_lock_irqsave(&card->card_lock, flags);
 	if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1) {
 		spin_unlock_irqrestore(&card->card_lock, flags);
 		return 0;
 	}
 
-	port->xmit_buf[port->xmit_head++] = ch;
+	port->port.xmit_buf[port->xmit_head++] = ch;
 	port->xmit_head &= (SERIAL_XMIT_SIZE - 1);
 	port->xmit_cnt++;
 	spin_unlock_irqrestore(&card->card_lock, flags);
@@ -1172,7 +1148,7 @@ static void isicom_flush_chars(struct tty_struct *tty)
 		return;
 
 	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-			!port->xmit_buf)
+			!port->port.xmit_buf)
 		return;
 
 	/* this tells the transmitter to consider this port for
@@ -1274,23 +1250,23 @@ static int isicom_set_serial_info(struct isi_port *port,
 
 	lock_kernel();
 
-	reconfig_port = ((port->flags & ASYNC_SPD_MASK) !=
+	reconfig_port = ((port->port.flags & ASYNC_SPD_MASK) !=
 		(newinfo.flags & ASYNC_SPD_MASK));
 
 	if (!capable(CAP_SYS_ADMIN)) {
-		if ((newinfo.close_delay != port->close_delay) ||
-				(newinfo.closing_wait != port->closing_wait) ||
+		if ((newinfo.close_delay != port->port.close_delay) ||
+				(newinfo.closing_wait != port->port.closing_wait) ||
 				((newinfo.flags & ~ASYNC_USR_MASK) !=
-				(port->flags & ~ASYNC_USR_MASK))) {
+				(port->port.flags & ~ASYNC_USR_MASK))) {
 			unlock_kernel();
 			return -EPERM;
 		}
-		port->flags = ((port->flags & ~ASYNC_USR_MASK) |
+		port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
 				(newinfo.flags & ASYNC_USR_MASK));
 	} else {
-		port->close_delay = newinfo.close_delay;
-		port->closing_wait = newinfo.closing_wait;
-		port->flags = ((port->flags & ~ASYNC_FLAGS) |
+		port->port.close_delay = newinfo.close_delay;
+		port->port.closing_wait = newinfo.closing_wait;
+		port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
 				(newinfo.flags & ASYNC_FLAGS));
 	}
 	if (reconfig_port) {
@@ -1314,10 +1290,10 @@ static int isicom_get_serial_info(struct isi_port *port,
 	out_info.line = port - isi_ports;
 	out_info.port = port->card->base;
 	out_info.irq = port->card->irq;
-	out_info.flags = port->flags;
+	out_info.flags = port->port.flags;
 /*	out_info.baud_base = ? */
-	out_info.close_delay = port->close_delay;
-	out_info.closing_wait = port->closing_wait;
+	out_info.close_delay = port->port.close_delay;
+	out_info.closing_wait = port->port.closing_wait;
 	unlock_kernel();
 	if (copy_to_user(info, &out_info, sizeof(out_info)))
 		return -EFAULT;
@@ -1454,10 +1430,10 @@ static void isicom_hangup(struct tty_struct *tty)
 	isicom_shutdown_port(port);
 	spin_unlock_irqrestore(&port->card->card_lock, flags);
 
-	port->count = 0;
-	port->flags &= ~ASYNC_NORMAL_ACTIVE;
-	port->tty = NULL;
-	wake_up_interruptible(&port->open_wait);
+	port->port.count = 0;
+	port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	port->port.tty = NULL;
+	wake_up_interruptible(&port->port.open_wait);
 }
 
 
@@ -1736,6 +1712,12 @@ static int __devinit isicom_probe(struct pci_dev *pdev,
 	if (card_count >= BOARD_COUNT)
 		goto err;
 
+	retval = pci_enable_device(pdev);
+	if (retval) {
+		dev_err(&pdev->dev, "failed to enable\n");
+		goto err;
+	}
+
 	dev_info(&pdev->dev, "ISI PCI Card(Device ID 0x%x)\n", ent->device);
 
 	/* allot the first empty slot in the array */
@@ -1790,6 +1772,7 @@ errunrr:
 errdec:
 	board->base = 0;
 	card_count--;
+	pci_disable_device(pdev);
 err:
 	return retval;
 }
@@ -1806,6 +1789,7 @@ static void __devexit isicom_remove(struct pci_dev *pdev)
 	pci_release_region(pdev, 3);
 	board->base = 0;
 	card_count--;
+	pci_disable_device(pdev);
 }
 
 static int __init isicom_init(void)
@@ -1818,14 +1802,13 @@ static int __init isicom_init(void)
 		isi_card[idx].ports = port;
 		spin_lock_init(&isi_card[idx].card_lock);
 		for (channel = 0; channel < 16; channel++, port++) {
+			tty_port_init(&port->port);
 			port->magic = ISICOM_MAGIC;
 			port->card = &isi_card[idx];
 			port->channel = channel;
-			port->close_delay = 50 * HZ/100;
-			port->closing_wait = 3000 * HZ/100;
+			port->port.close_delay = 50 * HZ/100;
+			port->port.closing_wait = 3000 * HZ/100;
 			port->status = 0;
-			init_waitqueue_head(&port->open_wait);
-			init_waitqueue_head(&port->close_wait);
 			/*  . . .  */
 		}
 		isi_card[idx].base = 0;
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 7c8b62f162bf..6ef1c565705c 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -735,8 +735,8 @@ static void stli_cleanup_ports(struct stlibrd *brdp)
 	for (j = 0; j < STL_MAXPORTS; j++) {
 		portp = brdp->ports[j];
 		if (portp != NULL) {
-			if (portp->tty != NULL)
-				tty_hangup(portp->tty);
+			if (portp->port.tty != NULL)
+				tty_hangup(portp->port.tty);
 			kfree(portp);
 		}
 	}
@@ -811,9 +811,9 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
  *	The sleep here does not need interrupt protection since the wakeup
  *	for it is done with the same context.
  */
-	if (portp->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&portp->close_wait);
-		if (portp->flags & ASYNC_HUP_NOTIFY)
+	if (portp->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&portp->port.close_wait);
+		if (portp->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		return -ERESTARTSYS;
 	}
@@ -824,7 +824,7 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
  *	requires several commands to the board we will need to wait for any
  *	other open that is already initializing the port.
  */
-	portp->tty = tty;
+	portp->port.tty = tty;
 	tty->driver_data = portp;
 	portp->refcount++;
 
@@ -833,10 +833,10 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
 	if (signal_pending(current))
 		return -ERESTARTSYS;
 
-	if ((portp->flags & ASYNC_INITIALIZED) == 0) {
+	if ((portp->port.flags & ASYNC_INITIALIZED) == 0) {
 		set_bit(ST_INITIALIZING, &portp->state);
 		if ((rc = stli_initopen(brdp, portp)) >= 0) {
-			portp->flags |= ASYNC_INITIALIZED;
+			portp->port.flags |= ASYNC_INITIALIZED;
 			clear_bit(TTY_IO_ERROR, &tty->flags);
 		}
 		clear_bit(ST_INITIALIZING, &portp->state);
@@ -851,9 +851,9 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
  *	The sleep here does not need interrupt protection since the wakeup
  *	for it is done with the same context.
  */
-	if (portp->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&portp->close_wait);
-		if (portp->flags & ASYNC_HUP_NOTIFY)
+	if (portp->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&portp->port.close_wait);
+		if (portp->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		return -ERESTARTSYS;
 	}
@@ -867,7 +867,7 @@ static int stli_open(struct tty_struct *tty, struct file *filp)
 		if ((rc = stli_waitcarrier(brdp, portp, filp)) != 0)
 			return rc;
 	}
-	portp->flags |= ASYNC_NORMAL_ACTIVE;
+	portp->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
@@ -895,7 +895,7 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
 		return;
 	}
 
-	portp->flags |= ASYNC_CLOSING;
+	portp->port.flags |= ASYNC_CLOSING;
 
 /*
  *	May want to wait for data to drain before closing. The BUSY flag
@@ -911,7 +911,7 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
 	if (portp->closing_wait != ASYNC_CLOSING_WAIT_NONE)
 		tty_wait_until_sent(tty, portp->closing_wait);
 
-	portp->flags &= ~ASYNC_INITIALIZED;
+	portp->port.flags &= ~ASYNC_INITIALIZED;
 	brdp = stli_brds[portp->brdnr];
 	stli_rawclose(brdp, portp, 0, 0);
 	if (tty->termios->c_cflag & HUPCL) {
@@ -931,16 +931,16 @@ static void stli_close(struct tty_struct *tty, struct file *filp)
 	stli_flushbuffer(tty);
 
 	tty->closing = 0;
-	portp->tty = NULL;
+	portp->port.tty = NULL;
 
 	if (portp->openwaitcnt) {
 		if (portp->close_delay)
 			msleep_interruptible(jiffies_to_msecs(portp->close_delay));
-		wake_up_interruptible(&portp->open_wait);
+		wake_up_interruptible(&portp->port.open_wait);
 	}
 
-	portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&portp->close_wait);
+	portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	wake_up_interruptible(&portp->port.close_wait);
 }
 
 /*****************************************************************************/
@@ -970,7 +970,7 @@ static int stli_initopen(struct stlibrd *brdp, struct stliport *portp)
 	    sizeof(asynotify_t), 0)) < 0)
 		return rc;
 
-	tty = portp->tty;
+	tty = portp->port.tty;
 	if (tty == NULL)
 		return -ENODEV;
 	stli_mkasyport(portp, &aport, tty->termios);
@@ -1169,7 +1169,7 @@ static int stli_setport(struct stliport *portp)
 
 	if (portp == NULL)
 		return -ENODEV;
-	if (portp->tty == NULL)
+	if (portp->port.tty == NULL)
 		return -ENODEV;
 	if (portp->brdnr >= stli_nrbrds)
 		return -ENODEV;
@@ -1177,7 +1177,7 @@ static int stli_setport(struct stliport *portp)
 	if (brdp == NULL)
 		return -ENODEV;
 
-	stli_mkasyport(portp, &aport, portp->tty->termios);
+	stli_mkasyport(portp, &aport, portp->port.tty->termios);
 	return(stli_cmdwait(brdp, portp, A_SETPORT, &aport, sizeof(asyport_t), 0));
 }
 
@@ -1196,7 +1196,7 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct
 	rc = 0;
 	doclocal = 0;
 
-	if (portp->tty->termios->c_cflag & CLOCAL)
+	if (portp->port.tty->termios->c_cflag & CLOCAL)
 		doclocal++;
 
 	spin_lock_irqsave(&stli_lock, flags);
@@ -1211,14 +1211,14 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct
 		    &portp->asig, sizeof(asysigs_t), 0)) < 0)
 			break;
 		if (tty_hung_up_p(filp) ||
-		    ((portp->flags & ASYNC_INITIALIZED) == 0)) {
-			if (portp->flags & ASYNC_HUP_NOTIFY)
+		    ((portp->port.flags & ASYNC_INITIALIZED) == 0)) {
+			if (portp->port.flags & ASYNC_HUP_NOTIFY)
 				rc = -EBUSY;
 			else
 				rc = -ERESTARTSYS;
 			break;
 		}
-		if (((portp->flags & ASYNC_CLOSING) == 0) &&
+		if (((portp->port.flags & ASYNC_CLOSING) == 0) &&
 		    (doclocal || (portp->sigs & TIOCM_CD))) {
 			break;
 		}
@@ -1226,7 +1226,7 @@ static int stli_waitcarrier(struct stlibrd *brdp, struct stliport *portp, struct
 			rc = -ERESTARTSYS;
 			break;
 		}
-		interruptible_sleep_on(&portp->open_wait);
+		interruptible_sleep_on(&portp->port.open_wait);
 	}
 
 	spin_lock_irqsave(&stli_lock, flags);
@@ -1548,7 +1548,7 @@ static int stli_getserial(struct stliport *portp, struct serial_struct __user *s
 	sio.type = PORT_UNKNOWN;
 	sio.line = portp->portnr;
 	sio.irq = 0;
-	sio.flags = portp->flags;
+	sio.flags = portp->port.flags;
 	sio.baud_base = portp->baud_base;
 	sio.close_delay = portp->close_delay;
 	sio.closing_wait = portp->closing_wait;
@@ -1583,11 +1583,11 @@ static int stli_setserial(struct stliport *portp, struct serial_struct __user *s
 		if ((sio.baud_base != portp->baud_base) ||
 		    (sio.close_delay != portp->close_delay) ||
 		    ((sio.flags & ~ASYNC_USR_MASK) !=
-		    (portp->flags & ~ASYNC_USR_MASK)))
+		    (portp->port.flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
 	} 
 
-	portp->flags = (portp->flags & ~ASYNC_USR_MASK) |
+	portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) |
 		(sio.flags & ASYNC_USR_MASK);
 	portp->baud_base = sio.baud_base;
 	portp->close_delay = sio.close_delay;
@@ -1751,7 +1751,7 @@ static void stli_settermios(struct tty_struct *tty, struct ktermios *old)
 	if ((old->c_cflag & CRTSCTS) && ((tiosp->c_cflag & CRTSCTS) == 0))
 		tty->hw_stopped = 0;
 	if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
-		wake_up_interruptible(&portp->open_wait);
+		wake_up_interruptible(&portp->port.open_wait);
 }
 
 /*****************************************************************************/
@@ -1834,7 +1834,7 @@ static void stli_hangup(struct tty_struct *tty)
 	if (brdp == NULL)
 		return;
 
-	portp->flags &= ~ASYNC_INITIALIZED;
+	portp->port.flags &= ~ASYNC_INITIALIZED;
 
 	if (!test_bit(ST_CLOSING, &portp->state))
 		stli_rawclose(brdp, portp, 0, 0);
@@ -1855,12 +1855,12 @@ static void stli_hangup(struct tty_struct *tty)
 	clear_bit(ST_TXBUSY, &portp->state);
 	clear_bit(ST_RXSTOP, &portp->state);
 	set_bit(TTY_IO_ERROR, &tty->flags);
-	portp->tty = NULL;
-	portp->flags &= ~ASYNC_NORMAL_ACTIVE;
+	portp->port.tty = NULL;
+	portp->port.flags &= ~ASYNC_NORMAL_ACTIVE;
 	portp->refcount = 0;
 	spin_unlock_irqrestore(&stli_lock, flags);
 
-	wake_up_interruptible(&portp->open_wait);
+	wake_up_interruptible(&portp->port.open_wait);
 }
 
 /*****************************************************************************/
@@ -2188,7 +2188,7 @@ static void stli_read(struct stlibrd *brdp, struct stliport *portp)
 
 	if (test_bit(ST_RXSTOP, &portp->state))
 		return;
-	tty = portp->tty;
+	tty = portp->port.tty;
 	if (tty == NULL)
 		return;
 
@@ -2362,7 +2362,7 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
 	if (ap->notify) {
 		nt = ap->changed;
 		ap->notify = 0;
-		tty = portp->tty;
+		tty = portp->port.tty;
 
 		if (nt.signal & SG_DCD) {
 			oldsigs = portp->sigs;
@@ -2370,10 +2370,10 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
 			clear_bit(ST_GETSIGS, &portp->state);
 			if ((portp->sigs & TIOCM_CD) &&
 			    ((oldsigs & TIOCM_CD) == 0))
-				wake_up_interruptible(&portp->open_wait);
+				wake_up_interruptible(&portp->port.open_wait);
 			if ((oldsigs & TIOCM_CD) &&
 			    ((portp->sigs & TIOCM_CD) == 0)) {
-				if (portp->flags & ASYNC_CHECK_CD) {
+				if (portp->port.flags & ASYNC_CHECK_CD) {
 					if (tty)
 						tty_hangup(tty);
 				}
@@ -2392,7 +2392,7 @@ static int stli_hostcmd(struct stlibrd *brdp, struct stliport *portp)
 		if ((nt.data & DT_RXBREAK) && (portp->rxmarkmsk & BRKINT)) {
 			if (tty != NULL) {
 				tty_insert_flip_char(tty, 0, TTY_BREAK);
-				if (portp->flags & ASYNC_SAK) {
+				if (portp->port.flags & ASYNC_SAK) {
 					do_SAK(tty);
 					EBRDENABLE(brdp);
 				}
@@ -2542,17 +2542,17 @@ static void stli_mkasyport(struct stliport *portp, asyport_t *pp, struct ktermio
 /*
  *	Start of by setting the baud, char size, parity and stop bit info.
  */
-	pp->baudout = tty_get_baud_rate(portp->tty);
+	pp->baudout = tty_get_baud_rate(portp->port.tty);
 	if ((tiosp->c_cflag & CBAUD) == B38400) {
-		if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+		if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
 			pp->baudout = 57600;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
 			pp->baudout = 115200;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
 			pp->baudout = 230400;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
 			pp->baudout = 460800;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
 			pp->baudout = (portp->baud_base / portp->custom_divisor);
 	}
 	if (pp->baudout > STL_MAXBAUD)
@@ -2625,9 +2625,9 @@ static void stli_mkasyport(struct stliport *portp, asyport_t *pp, struct ktermio
  *	Set up clocal processing as required.
  */
 	if (tiosp->c_cflag & CLOCAL)
-		portp->flags &= ~ASYNC_CHECK_CD;
+		portp->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		portp->flags |= ASYNC_CHECK_CD;
+		portp->port.flags |= ASYNC_CHECK_CD;
 
 /*
  *	Transfer any persistent flags into the asyport structure.
@@ -2703,8 +2703,8 @@ static int stli_initports(struct stlibrd *brdp)
 		portp->baud_base = STL_BAUDBASE;
 		portp->close_delay = STL_CLOSEDELAY;
 		portp->closing_wait = 30 * HZ;
-		init_waitqueue_head(&portp->open_wait);
-		init_waitqueue_head(&portp->close_wait);
+		init_waitqueue_head(&portp->port.open_wait);
+		init_waitqueue_head(&portp->port.close_wait);
 		init_waitqueue_head(&portp->raw_wait);
 		panelport++;
 		if (panelport >= brdp->panels[panelnr]) {
@@ -4246,18 +4246,18 @@ static int stli_portcmdstats(struct stliport *portp)
 	stli_comstats.panel = portp->panelnr;
 	stli_comstats.port = portp->portnr;
 	stli_comstats.state = portp->state;
-	stli_comstats.flags = portp->flags;
+	stli_comstats.flags = portp->port.flag;
 
 	spin_lock_irqsave(&brd_lock, flags);
-	if (portp->tty != NULL) {
-		if (portp->tty->driver_data == portp) {
-			stli_comstats.ttystate = portp->tty->flags;
+	if (portp->port.tty != NULL) {
+		if (portp->port.tty->driver_data == portp) {
+			stli_comstats.ttystate = portp->port.tty->flags;
 			stli_comstats.rxbuffered = -1;
-			if (portp->tty->termios != NULL) {
-				stli_comstats.cflags = portp->tty->termios->c_cflag;
-				stli_comstats.iflags = portp->tty->termios->c_iflag;
-				stli_comstats.oflags = portp->tty->termios->c_oflag;
-				stli_comstats.lflags = portp->tty->termios->c_lflag;
+			if (portp->port.tty->termios != NULL) {
+				stli_comstats.cflags = portp->port.tty->termios->c_cflag;
+				stli_comstats.iflags = portp->port.tty->termios->c_iflag;
+				stli_comstats.oflags = portp->port.tty->termios->c_oflag;
+				stli_comstats.lflags = portp->port.tty->termios->c_lflag;
 			}
 		}
 	}
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index e21346da3101..2bba250ffc8e 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -130,17 +130,13 @@ struct moxaq_str {
 };
 
 struct moxa_port {
+	struct tty_port port;
 	struct moxa_board_conf *board;
-	struct tty_struct *tty;
 	void __iomem *tableAddr;
 
 	int type;
-	int close_delay;
-	unsigned int count;
-	int asyncflags;
 	int cflag;
 	unsigned long statusflags;
-	wait_queue_head_t open_wait;
 
 	u8 DCDState;
 	u8 lineCtrl;
@@ -348,10 +344,10 @@ static int moxa_ioctl(struct tty_struct *tty, struct file *file,
 				if (status & 4)
 					tmp.dcd = 1;
 
-				if (!p->tty || !p->tty->termios)
+				if (!p->port.tty || !p->port.tty->termios)
 					tmp.cflag = p->cflag;
 				else
-					tmp.cflag = p->tty->termios->c_cflag;
+					tmp.cflag = p->port.tty->termios->c_cflag;
 copy:
 				if (copy_to_user(argm, &tmp, sizeof(tmp))) {
 					mutex_unlock(&moxa_openlock);
@@ -825,10 +821,9 @@ static int moxa_init_board(struct moxa_board_conf *brd, struct device *dev)
 	}
 
 	for (i = 0, p = brd->ports; i < MAX_PORTS_PER_BOARD; i++, p++) {
+		tty_port_init(&p->port);
 		p->type = PORT_16550A;
-		p->close_delay = 5 * HZ / 10;
 		p->cflag = B9600 | CS8 | CREAD | CLOCAL | HUPCL;
-		init_waitqueue_head(&p->open_wait);
 	}
 
 	switch (brd->boardType) {
@@ -884,12 +879,12 @@ static void moxa_board_deinit(struct moxa_board_conf *brd)
 
 	/* pci hot-un-plug support */
 	for (a = 0; a < brd->numPorts; a++)
-		if (brd->ports[a].asyncflags & ASYNC_INITIALIZED)
-			tty_hangup(brd->ports[a].tty);
+		if (brd->ports[a].port.flags & ASYNC_INITIALIZED)
+			tty_hangup(brd->ports[a].port.tty);
 	while (1) {
 		opened = 0;
 		for (a = 0; a < brd->numPorts; a++)
-			if (brd->ports[a].asyncflags & ASYNC_INITIALIZED)
+			if (brd->ports[a].port.flags & ASYNC_INITIALIZED)
 				opened++;
 		mutex_unlock(&moxa_openlock);
 		if (!opened)
@@ -1104,9 +1099,9 @@ static void moxa_close_port(struct moxa_port *ch)
 {
 	moxa_shut_down(ch);
 	MoxaPortFlushData(ch, 2);
-	ch->asyncflags &= ~ASYNC_NORMAL_ACTIVE;
-	ch->tty->driver_data = NULL;
-	ch->tty = NULL;
+	ch->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	ch->port.tty->driver_data = NULL;
+	ch->port.tty = NULL;
 }
 
 static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
@@ -1117,7 +1112,7 @@ static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
 	u8 dcd;
 
 	while (1) {
-		prepare_to_wait(&ch->open_wait, &wait, TASK_INTERRUPTIBLE);
+		prepare_to_wait(&ch->port.open_wait, &wait, TASK_INTERRUPTIBLE);
 		if (tty_hung_up_p(filp)) {
 #ifdef SERIAL_DO_RESTART
 			retval = -ERESTARTSYS;
@@ -1138,7 +1133,7 @@ static int moxa_block_till_ready(struct tty_struct *tty, struct file *filp,
 		}
 		schedule();
 	}
-	finish_wait(&ch->open_wait, &wait);
+	finish_wait(&ch->port.open_wait, &wait);
 
 	return retval;
 }
@@ -1163,16 +1158,16 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
 	}
 
 	ch = &brd->ports[port % MAX_PORTS_PER_BOARD];
-	ch->count++;
+	ch->port.count++;
 	tty->driver_data = ch;
-	ch->tty = tty;
-	if (!(ch->asyncflags & ASYNC_INITIALIZED)) {
+	ch->port.tty = tty;
+	if (!(ch->port.flags & ASYNC_INITIALIZED)) {
 		ch->statusflags = 0;
 		moxa_set_tty_param(tty, tty->termios);
 		MoxaPortLineCtrl(ch, 1, 1);
 		MoxaPortEnable(ch);
 		MoxaSetFifo(ch, ch->type == PORT_16550A);
-		ch->asyncflags |= ASYNC_INITIALIZED;
+		ch->port.flags |= ASYNC_INITIALIZED;
 	}
 	mutex_unlock(&moxa_openlock);
 
@@ -1181,11 +1176,11 @@ static int moxa_open(struct tty_struct *tty, struct file *filp)
 		retval = moxa_block_till_ready(tty, filp, ch);
 	mutex_lock(&moxa_openlock);
 	if (retval) {
-		if (ch->count) /* 0 means already hung up... */
-			if (--ch->count == 0)
+		if (ch->port.count) /* 0 means already hung up... */
+			if (--ch->port.count == 0)
 				moxa_close_port(ch);
 	} else
-		ch->asyncflags |= ASYNC_NORMAL_ACTIVE;
+		ch->port.flags |= ASYNC_NORMAL_ACTIVE;
 	mutex_unlock(&moxa_openlock);
 
 	return retval;
@@ -1204,21 +1199,21 @@ static void moxa_close(struct tty_struct *tty, struct file *filp)
 	ch = tty->driver_data;
 	if (ch == NULL)
 		goto unlock;
-	if (tty->count == 1 && ch->count != 1) {
+	if (tty->count == 1 && ch->port.count != 1) {
 		printk(KERN_WARNING "moxa_close: bad serial port count; "
-			"tty->count is 1, ch->count is %d\n", ch->count);
-		ch->count = 1;
+			"tty->count is 1, ch->port.count is %d\n", ch->port.count);
+		ch->port.count = 1;
 	}
-	if (--ch->count < 0) {
+	if (--ch->port.count < 0) {
 		printk(KERN_WARNING "moxa_close: bad serial port count, "
 			"device=%s\n", tty->name);
-		ch->count = 0;
+		ch->port.count = 0;
 	}
-	if (ch->count)
+	if (ch->port.count)
 		goto unlock;
 
 	ch->cflag = tty->termios->c_cflag;
-	if (ch->asyncflags & ASYNC_INITIALIZED) {
+	if (ch->port.flags & ASYNC_INITIALIZED) {
 		moxa_setup_empty_event(tty);
 		tty_wait_until_sent(tty, 30 * HZ);	/* 30 seconds timeout */
 	}
@@ -1374,7 +1369,7 @@ static void moxa_set_termios(struct tty_struct *tty,
 		return;
 	moxa_set_tty_param(tty, old_termios);
 	if (!(old_termios->c_cflag & CLOCAL) && C_CLOCAL(tty))
-		wake_up_interruptible(&ch->open_wait);
+		wake_up_interruptible(&ch->port.open_wait);
 }
 
 static void moxa_stop(struct tty_struct *tty)
@@ -1412,20 +1407,20 @@ static void moxa_hangup(struct tty_struct *tty)
 		mutex_unlock(&moxa_openlock);
 		return;
 	}
-	ch->count = 0;
+	ch->port.count = 0;
 	moxa_close_port(ch);
 	mutex_unlock(&moxa_openlock);
 
-	wake_up_interruptible(&ch->open_wait);
+	wake_up_interruptible(&ch->port.open_wait);
 }
 
 static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
 {
 	dcd = !!dcd;
 
-	if (dcd != p->DCDState && p->tty && C_CLOCAL(p->tty)) {
+	if (dcd != p->DCDState && p->port.tty && C_CLOCAL(p->port.tty)) {
 		if (!dcd)
-			tty_hangup(p->tty);
+			tty_hangup(p->port.tty);
 	}
 	p->DCDState = dcd;
 }
@@ -1433,9 +1428,9 @@ static void moxa_new_dcdstate(struct moxa_port *p, u8 dcd)
 static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
 		u16 __iomem *ip)
 {
-	struct tty_struct *tty = p->tty;
+	struct tty_struct *tty = p->port.tty;
 	void __iomem *ofsAddr;
-	unsigned int inited = p->asyncflags & ASYNC_INITIALIZED;
+	unsigned int inited = p->port.flags & ASYNC_INITIALIZED;
 	u16 intr;
 
 	if (tty) {
@@ -1566,9 +1561,9 @@ static void moxa_setup_empty_event(struct tty_struct *tty)
 
 static void moxa_shut_down(struct moxa_port *ch)
 {
-	struct tty_struct *tp = ch->tty;
+	struct tty_struct *tp = ch->port.tty;
 
-	if (!(ch->asyncflags & ASYNC_INITIALIZED))
+	if (!(ch->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	MoxaPortDisable(ch);
@@ -1580,7 +1575,7 @@ static void moxa_shut_down(struct moxa_port *ch)
 		MoxaPortLineCtrl(ch, 0, 0);
 
 	spin_lock_bh(&moxa_lock);
-	ch->asyncflags &= ~ASYNC_INITIALIZED;
+	ch->port.flags &= ~ASYNC_INITIALIZED;
 	spin_unlock_bh(&moxa_lock);
 }
 
@@ -1975,7 +1970,7 @@ static int MoxaPortWriteData(struct moxa_port *port,
 	c = (head > tail) ? (head - tail - 1) : (head - tail + tx_mask);
 	if (c > len)
 		c = len;
-	moxaLog.txcnt[port->tty->index] += c;
+	moxaLog.txcnt[port->port.tty->index] += c;
 	total = c;
 	if (spage == epage) {
 		bufhead = readw(ofsAddr + Ofs_txb);
@@ -2017,7 +2012,7 @@ static int MoxaPortWriteData(struct moxa_port *port,
 
 static int MoxaPortReadData(struct moxa_port *port)
 {
-	struct tty_struct *tty = port->tty;
+	struct tty_struct *tty = port->port.tty;
 	unsigned char *dst;
 	void __iomem *baseAddr, *ofsAddr, *ofs;
 	unsigned int count, len, total;
@@ -2124,10 +2119,10 @@ static int moxa_get_serial_info(struct moxa_port *info,
 {
 	struct serial_struct tmp = {
 		.type = info->type,
-		.line = info->tty->index,
-		.flags = info->asyncflags,
+		.line = info->port.tty->index,
+		.flags = info->port.flags,
 		.baud_base = 921600,
-		.close_delay = info->close_delay
+		.close_delay = info->port.close_delay
 	};
 	return copy_to_user(retinfo, &tmp, sizeof(*retinfo)) ? -EFAULT : 0;
 }
@@ -2148,13 +2143,13 @@ static int moxa_set_serial_info(struct moxa_port *info,
 
 	if (!capable(CAP_SYS_ADMIN)) {
 		if (((new_serial.flags & ~ASYNC_USR_MASK) !=
-		     (info->asyncflags & ~ASYNC_USR_MASK)))
+		     (info->port.flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
 	} else
-		info->close_delay = new_serial.close_delay * HZ / 100;
+		info->port.close_delay = new_serial.close_delay * HZ / 100;
 
 	new_serial.flags = (new_serial.flags & ~ASYNC_FLAGS);
-	new_serial.flags |= (info->asyncflags & ASYNC_FLAGS);
+	new_serial.flags |= (info->port.flags & ASYNC_FLAGS);
 
 	MoxaSetFifo(info, new_serial.type == PORT_16550A);
 
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 4b81a85c5b53..6307e301bd26 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -222,8 +222,8 @@ struct mxser_mon_ext {
 struct mxser_board;
 
 struct mxser_port {
+	struct tty_port port;
 	struct mxser_board *board;
-	struct tty_struct *tty;
 
 	unsigned long ioaddr;
 	unsigned long opmode_ioaddr;
@@ -234,7 +234,6 @@ struct mxser_port {
 	int rx_low_water;
 	int baud_base;		/* max. speed */
 	int type;		/* UART type */
-	int flags;		/* defined in tty.h */
 
 	int x_char;		/* xon/xoff character */
 	int IER;		/* Interrupt Enable Register */
@@ -244,20 +243,14 @@ struct mxser_port {
 	unsigned char ldisc_stop_rx;
 
 	int custom_divisor;
-	int close_delay;
-	unsigned short closing_wait;
 	unsigned char err_shadow;
-	unsigned long event;
 
-	int count;		/* # of fd on device */
-	int blocked_open;	/* # of blocked opens */
 	struct async_icount icount; /* kernel counters for 4 input interrupts */
 	int timeout;
 
 	int read_status_mask;
 	int ignore_status_mask;
 	int xmit_fifo_size;
-	unsigned char *xmit_buf;
 	int xmit_head;
 	int xmit_tail;
 	int xmit_cnt;
@@ -267,7 +260,6 @@ struct mxser_port {
 	struct mxser_mon mon_data;
 
 	spinlock_t slock;
-	wait_queue_head_t open_wait;
 	wait_queue_head_t delta_msr_wait;
 };
 
@@ -575,7 +567,7 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 			test_bit(TTY_IO_ERROR, &tty->flags)) {
-		port->flags |= ASYNC_NORMAL_ACTIVE;
+		port->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -585,32 +577,32 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
 	/*
 	 * Block waiting for the carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, port->count is dropped by one, so that
+	 * this loop, port->port.count is dropped by one, so that
 	 * mxser_close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
+	add_wait_queue(&port->port.open_wait, &wait);
 
 	spin_lock_irqsave(&port->slock, flags);
 	if (!tty_hung_up_p(filp))
-		port->count--;
+		port->port.count--;
 	spin_unlock_irqrestore(&port->slock, flags);
-	port->blocked_open++;
+	port->port.blocked_open++;
 	while (1) {
 		spin_lock_irqsave(&port->slock, flags);
 		outb(inb(port->ioaddr + UART_MCR) |
 			UART_MCR_DTR | UART_MCR_RTS, port->ioaddr + UART_MCR);
 		spin_unlock_irqrestore(&port->slock, flags);
 		set_current_state(TASK_INTERRUPTIBLE);
-		if (tty_hung_up_p(filp) || !(port->flags & ASYNC_INITIALIZED)) {
-			if (port->flags & ASYNC_HUP_NOTIFY)
+		if (tty_hung_up_p(filp) || !(port->port.flags & ASYNC_INITIALIZED)) {
+			if (port->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
 			break;
 		}
-		if (!(port->flags & ASYNC_CLOSING) &&
+		if (!(port->port.flags & ASYNC_CLOSING) &&
 				(do_clocal ||
 				(inb(port->ioaddr + UART_MSR) & UART_MSR_DCD)))
 			break;
@@ -621,13 +613,13 @@ static int mxser_block_til_ready(struct tty_struct *tty, struct file *filp,
 		schedule();
 	}
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
+	remove_wait_queue(&port->port.open_wait, &wait);
 	if (!tty_hung_up_p(filp))
-		port->count++;
-	port->blocked_open--;
+		port->port.count++;
+	port->port.blocked_open--;
 	if (retval)
 		return retval;
-	port->flags |= ASYNC_NORMAL_ACTIVE;
+	port->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
@@ -636,7 +628,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
 	int quot = 0, baud;
 	unsigned char cval;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return -1;
 
 	if (!(info->ioaddr))
@@ -647,13 +639,13 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
 
 	if (newspd == 134) {
 		quot = 2 * info->baud_base / 269;
-		tty_encode_baud_rate(info->tty, 134, 134);
+		tty_encode_baud_rate(info->port.tty, 134, 134);
 	} else if (newspd) {
 		quot = info->baud_base / newspd;
 		if (quot == 0)
 			quot = 1;
 		baud = info->baud_base/quot;
-		tty_encode_baud_rate(info->tty, baud, baud);
+		tty_encode_baud_rate(info->port.tty, baud, baud);
 	} else {
 		quot = 0;
 	}
@@ -679,7 +671,7 @@ static int mxser_set_baud(struct mxser_port *info, long newspd)
 	outb(cval, info->ioaddr + UART_LCR);	/* reset DLAB */
 
 #ifdef BOTHER
-	if (C_BAUD(info->tty) == BOTHER) {
+	if (C_BAUD(info->port.tty) == BOTHER) {
 		quot = info->baud_base % newspd;
 		quot *= 8;
 		if (quot % newspd > newspd / 2) {
@@ -707,14 +699,14 @@ static int mxser_change_speed(struct mxser_port *info,
 	int ret = 0;
 	unsigned char status;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return ret;
-	cflag = info->tty->termios->c_cflag;
+	cflag = info->port.tty->termios->c_cflag;
 	if (!(info->ioaddr))
 		return ret;
 
-	if (mxser_set_baud_method[info->tty->index] == 0)
-		mxser_set_baud(info, tty_get_baud_rate(info->tty));
+	if (mxser_set_baud_method[info->port.tty->index] == 0)
+		mxser_set_baud(info, tty_get_baud_rate(info->port.tty));
 
 	/* byte size and parity */
 	switch (cflag & CSIZE) {
@@ -777,15 +769,15 @@ static int mxser_change_speed(struct mxser_port *info,
 	info->IER &= ~UART_IER_MSI;
 	info->MCR &= ~UART_MCR_AFE;
 	if (cflag & CRTSCTS) {
-		info->flags |= ASYNC_CTS_FLOW;
+		info->port.flags |= ASYNC_CTS_FLOW;
 		info->IER |= UART_IER_MSI;
 		if ((info->type == PORT_16550A) || (info->board->chip_flag)) {
 			info->MCR |= UART_MCR_AFE;
 		} else {
 			status = inb(info->ioaddr + UART_MSR);
-			if (info->tty->hw_stopped) {
+			if (info->port.tty->hw_stopped) {
 				if (status & UART_MSR_CTS) {
-					info->tty->hw_stopped = 0;
+					info->port.tty->hw_stopped = 0;
 					if (info->type != PORT_16550A &&
 							!info->board->chip_flag) {
 						outb(info->IER & ~UART_IER_THRI,
@@ -795,11 +787,11 @@ static int mxser_change_speed(struct mxser_port *info,
 						outb(info->IER, info->ioaddr +
 								UART_IER);
 					}
-					tty_wakeup(info->tty);
+					tty_wakeup(info->port.tty);
 				}
 			} else {
 				if (!(status & UART_MSR_CTS)) {
-					info->tty->hw_stopped = 1;
+					info->port.tty->hw_stopped = 1;
 					if ((info->type != PORT_16550A) &&
 							(!info->board->chip_flag)) {
 						info->IER &= ~UART_IER_THRI;
@@ -810,13 +802,13 @@ static int mxser_change_speed(struct mxser_port *info,
 			}
 		}
 	} else {
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 	}
 	outb(info->MCR, info->ioaddr + UART_MCR);
 	if (cflag & CLOCAL) {
-		info->flags &= ~ASYNC_CHECK_CD;
+		info->port.flags &= ~ASYNC_CHECK_CD;
 	} else {
-		info->flags |= ASYNC_CHECK_CD;
+		info->port.flags |= ASYNC_CHECK_CD;
 		info->IER |= UART_IER_MSI;
 	}
 	outb(info->IER, info->ioaddr + UART_IER);
@@ -825,21 +817,21 @@ static int mxser_change_speed(struct mxser_port *info,
 	 * Set up parity check flag
 	 */
 	info->read_status_mask = UART_LSR_OE | UART_LSR_THRE | UART_LSR_DR;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask |= UART_LSR_FE | UART_LSR_PE;
-	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
 		info->read_status_mask |= UART_LSR_BI;
 
 	info->ignore_status_mask = 0;
 
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask |= UART_LSR_BI;
 		info->read_status_mask |= UART_LSR_BI;
 		/*
 		 * If we're ignore parity and break indicators, ignore
 		 * overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty)) {
+		if (I_IGNPAR(info->port.tty)) {
 			info->ignore_status_mask |=
 						UART_LSR_OE |
 						UART_LSR_PE |
@@ -851,16 +843,16 @@ static int mxser_change_speed(struct mxser_port *info,
 		}
 	}
 	if (info->board->chip_flag) {
-		mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->tty));
-		mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->tty));
-		if (I_IXON(info->tty)) {
+		mxser_set_must_xon1_value(info->ioaddr, START_CHAR(info->port.tty));
+		mxser_set_must_xoff1_value(info->ioaddr, STOP_CHAR(info->port.tty));
+		if (I_IXON(info->port.tty)) {
 			mxser_enable_must_rx_software_flow_control(
 					info->ioaddr);
 		} else {
 			mxser_disable_must_rx_software_flow_control(
 					info->ioaddr);
 		}
-		if (I_IXOFF(info->tty)) {
+		if (I_IXOFF(info->port.tty)) {
 			mxser_enable_must_tx_software_flow_control(
 					info->ioaddr);
 		} else {
@@ -890,15 +882,15 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
 	port->mon_data.modem_status = status;
 	wake_up_interruptible(&port->delta_msr_wait);
 
-	if ((port->flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
+	if ((port->port.flags & ASYNC_CHECK_CD) && (status & UART_MSR_DDCD)) {
 		if (status & UART_MSR_DCD)
-			wake_up_interruptible(&port->open_wait);
+			wake_up_interruptible(&port->port.open_wait);
 	}
 
-	if (port->flags & ASYNC_CTS_FLOW) {
-		if (port->tty->hw_stopped) {
+	if (port->port.flags & ASYNC_CTS_FLOW) {
+		if (port->port.tty->hw_stopped) {
 			if (status & UART_MSR_CTS) {
-				port->tty->hw_stopped = 0;
+				port->port.tty->hw_stopped = 0;
 
 				if ((port->type != PORT_16550A) &&
 						(!port->board->chip_flag)) {
@@ -908,11 +900,11 @@ static void mxser_check_modem_status(struct mxser_port *port, int status)
 					outb(port->IER, port->ioaddr +
 							UART_IER);
 				}
-				tty_wakeup(port->tty);
+				tty_wakeup(port->port.tty);
 			}
 		} else {
 			if (!(status & UART_MSR_CTS)) {
-				port->tty->hw_stopped = 1;
+				port->port.tty->hw_stopped = 1;
 				if (port->type != PORT_16550A &&
 						!port->board->chip_flag) {
 					port->IER &= ~UART_IER_THRI;
@@ -935,23 +927,23 @@ static int mxser_startup(struct mxser_port *info)
 
 	spin_lock_irqsave(&info->slock, flags);
 
-	if (info->flags & ASYNC_INITIALIZED) {
+	if (info->port.flags & ASYNC_INITIALIZED) {
 		free_page(page);
 		spin_unlock_irqrestore(&info->slock, flags);
 		return 0;
 	}
 
 	if (!info->ioaddr || !info->type) {
-		if (info->tty)
-			set_bit(TTY_IO_ERROR, &info->tty->flags);
+		if (info->port.tty)
+			set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 		free_page(page);
 		spin_unlock_irqrestore(&info->slock, flags);
 		return 0;
 	}
-	if (info->xmit_buf)
+	if (info->port.xmit_buf)
 		free_page(page);
 	else
-		info->xmit_buf = (unsigned char *) page;
+		info->port.xmit_buf = (unsigned char *) page;
 
 	/*
 	 * Clear the FIFO buffers and disable them
@@ -973,8 +965,8 @@ static int mxser_startup(struct mxser_port *info)
 	if (inb(info->ioaddr + UART_LSR) == 0xff) {
 		spin_unlock_irqrestore(&info->slock, flags);
 		if (capable(CAP_SYS_ADMIN)) {
-			if (info->tty)
-				set_bit(TTY_IO_ERROR, &info->tty->flags);
+			if (info->port.tty)
+				set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 			return 0;
 		} else
 			return -ENODEV;
@@ -1012,15 +1004,15 @@ static int mxser_startup(struct mxser_port *info)
 	(void) inb(info->ioaddr + UART_IIR);
 	(void) inb(info->ioaddr + UART_MSR);
 
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 	info->xmit_cnt = info->xmit_head = info->xmit_tail = 0;
 
 	/*
 	 * and set the speed of the serial port
 	 */
 	mxser_change_speed(info, NULL);
-	info->flags |= ASYNC_INITIALIZED;
+	info->port.flags |= ASYNC_INITIALIZED;
 	spin_unlock_irqrestore(&info->slock, flags);
 
 	return 0;
@@ -1034,7 +1026,7 @@ static void mxser_shutdown(struct mxser_port *info)
 {
 	unsigned long flags;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	spin_lock_irqsave(&info->slock, flags);
@@ -1048,15 +1040,15 @@ static void mxser_shutdown(struct mxser_port *info)
 	/*
 	 * Free the IRQ, if necessary
 	 */
-	if (info->xmit_buf) {
-		free_page((unsigned long) info->xmit_buf);
-		info->xmit_buf = NULL;
+	if (info->port.xmit_buf) {
+		free_page((unsigned long) info->port.xmit_buf);
+		info->port.xmit_buf = NULL;
 	}
 
 	info->IER = 0;
 	outb(0x00, info->ioaddr + UART_IER);
 
-	if (!info->tty || (info->tty->termios->c_cflag & HUPCL))
+	if (!info->port.tty || (info->port.tty->termios->c_cflag & HUPCL))
 		info->MCR &= ~(UART_MCR_DTR | UART_MCR_RTS);
 	outb(info->MCR, info->ioaddr + UART_MCR);
 
@@ -1072,10 +1064,10 @@ static void mxser_shutdown(struct mxser_port *info)
 	/* read data port to reset things */
 	(void) inb(info->ioaddr + UART_RX);
 
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags &= ~ASYNC_INITIALIZED;
+	info->port.flags &= ~ASYNC_INITIALIZED;
 
 	if (info->board->chip_flag)
 		SET_MOXA_MUST_NO_SOFTWARE_FLOW_CONTROL(info->ioaddr);
@@ -1105,12 +1097,12 @@ static int mxser_open(struct tty_struct *tty, struct file *filp)
 		return -ENODEV;
 
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 	/*
 	 * Start up serial port
 	 */
 	spin_lock_irqsave(&info->slock, flags);
-	info->count++;
+	info->port.count++;
 	spin_unlock_irqrestore(&info->slock, flags);
 	retval = mxser_startup(info);
 	if (retval)
@@ -1170,42 +1162,42 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
 		spin_unlock_irqrestore(&info->slock, flags);
 		return;
 	}
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * Uh, oh.  tty->count is 1, which means that the tty
-		 * structure will be freed.  Info->count should always
+		 * structure will be freed.  Info->port.count should always
 		 * be one in these conditions.  If it's greater than
 		 * one, we've got real problems, since it means the
 		 * serial port won't be shutdown.
 		 */
 		printk(KERN_ERR "mxser_close: bad serial port count; "
-			"tty->count is 1, info->count is %d\n", info->count);
-		info->count = 1;
+			"tty->count is 1, info->port.count is %d\n", info->port.count);
+		info->port.count = 1;
 	}
-	if (--info->count < 0) {
+	if (--info->port.count < 0) {
 		printk(KERN_ERR "mxser_close: bad serial port count for "
-			"ttys%d: %d\n", tty->index, info->count);
-		info->count = 0;
+			"ttys%d: %d\n", tty->index, info->port.count);
+		info->port.count = 0;
 	}
-	if (info->count) {
+	if (info->port.count) {
 		spin_unlock_irqrestore(&info->slock, flags);
 		return;
 	}
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 	spin_unlock_irqrestore(&info->slock, flags);
 	/*
 	 * Save the termios structure, since this port may have
 	 * separate termios for callout and dialin.
 	 */
-	if (info->flags & ASYNC_NORMAL_ACTIVE)
+	if (info->port.flags & ASYNC_NORMAL_ACTIVE)
 		info->normal_termios = *tty->termios;
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify
 	 * the line discipline to only process XON/XOFF characters.
 	 */
 	tty->closing = 1;
-	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, info->closing_wait);
+	if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
+		tty_wait_until_sent(tty, info->port.closing_wait);
 	/*
 	 * At this point we stop accepting input.  To do this, we
 	 * disable the receive line status interrupts, and tell the
@@ -1216,7 +1208,7 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
 	if (info->board->chip_flag)
 		info->IER &= ~MOXA_MUST_RECV_ISR;
 
-	if (info->flags & ASYNC_INITIALIZED) {
+	if (info->port.flags & ASYNC_INITIALIZED) {
 		outb(info->IER, info->ioaddr + UART_IER);
 		/*
 		 * Before we drop DTR, make sure the UART transmitter
@@ -1236,15 +1228,14 @@ static void mxser_close(struct tty_struct *tty, struct file *filp)
 	tty_ldisc_flush(tty);
 
 	tty->closing = 0;
-	info->event = 0;
-	info->tty = NULL;
-	if (info->blocked_open) {
-		if (info->close_delay)
-			schedule_timeout_interruptible(info->close_delay);
-		wake_up_interruptible(&info->open_wait);
+	info->port.tty = NULL;
+	if (info->port.blocked_open) {
+		if (info->port.close_delay)
+			schedule_timeout_interruptible(info->port.close_delay);
+		wake_up_interruptible(&info->port.open_wait);
 	}
 
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE | ASYNC_CLOSING);
 }
 
 static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int count)
@@ -1253,7 +1244,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
 	struct mxser_port *info = tty->driver_data;
 	unsigned long flags;
 
-	if (!info->xmit_buf)
+	if (!info->port.xmit_buf)
 		return 0;
 
 	while (1) {
@@ -1262,7 +1253,7 @@ static int mxser_write(struct tty_struct *tty, const unsigned char *buf, int cou
 		if (c <= 0)
 			break;
 
-		memcpy(info->xmit_buf + info->xmit_head, buf, c);
+		memcpy(info->port.xmit_buf + info->xmit_head, buf, c);
 		spin_lock_irqsave(&info->slock, flags);
 		info->xmit_head = (info->xmit_head + c) &
 				  (SERIAL_XMIT_SIZE - 1);
@@ -1294,14 +1285,14 @@ static int mxser_put_char(struct tty_struct *tty, unsigned char ch)
 	struct mxser_port *info = tty->driver_data;
 	unsigned long flags;
 
-	if (!info->xmit_buf)
+	if (!info->port.xmit_buf)
 		return 0;
 
 	if (info->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
 		return 0;
 
 	spin_lock_irqsave(&info->slock, flags);
-	info->xmit_buf[info->xmit_head++] = ch;
+	info->port.xmit_buf[info->xmit_head++] = ch;
 	info->xmit_head &= SERIAL_XMIT_SIZE - 1;
 	info->xmit_cnt++;
 	spin_unlock_irqrestore(&info->slock, flags);
@@ -1327,7 +1318,7 @@ static void mxser_flush_chars(struct tty_struct *tty)
 
 	if (info->xmit_cnt <= 0 ||
 			tty->stopped ||
-			!info->xmit_buf ||
+			!info->port.xmit_buf ||
 			(tty->hw_stopped &&
 			 (info->type != PORT_16550A) &&
 			 (!info->board->chip_flag)
@@ -1370,13 +1361,13 @@ static int mxser_get_serial_info(struct mxser_port *info,
 {
 	struct serial_struct tmp = {
 		.type = info->type,
-		.line = info->tty->index,
+		.line = info->port.tty->index,
 		.port = info->ioaddr,
 		.irq = info->board->irq,
-		.flags = info->flags,
+		.flags = info->port.flags,
 		.baud_base = info->baud_base,
-		.close_delay = info->close_delay,
-		.closing_wait = info->closing_wait,
+		.close_delay = info->port.close_delay,
+		.closing_wait = info->port.closing_wait,
 		.custom_divisor = info->custom_divisor,
 		.hub6 = 0
 	};
@@ -1403,33 +1394,33 @@ static int mxser_set_serial_info(struct mxser_port *info,
 			new_serial.port != info->ioaddr)
 		return -EINVAL;
 
-	flags = info->flags & ASYNC_SPD_MASK;
+	flags = info->port.flags & ASYNC_SPD_MASK;
 
 	if (!capable(CAP_SYS_ADMIN)) {
 		if ((new_serial.baud_base != info->baud_base) ||
-				(new_serial.close_delay != info->close_delay) ||
-				((new_serial.flags & ~ASYNC_USR_MASK) != (info->flags & ~ASYNC_USR_MASK)))
+				(new_serial.close_delay != info->port.close_delay) ||
+				((new_serial.flags & ~ASYNC_USR_MASK) != (info->port.flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
-		info->flags = ((info->flags & ~ASYNC_USR_MASK) |
+		info->port.flags = ((info->port.flags & ~ASYNC_USR_MASK) |
 				(new_serial.flags & ASYNC_USR_MASK));
 	} else {
 		/*
 		 * OK, past this point, all the error checking has been done.
 		 * At this point, we start making changes.....
 		 */
-		info->flags = ((info->flags & ~ASYNC_FLAGS) |
+		info->port.flags = ((info->port.flags & ~ASYNC_FLAGS) |
 				(new_serial.flags & ASYNC_FLAGS));
-		info->close_delay = new_serial.close_delay * HZ / 100;
-		info->closing_wait = new_serial.closing_wait * HZ / 100;
-		info->tty->low_latency =
-				(info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
-		info->tty->low_latency = 0;
-		if ((info->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
+		info->port.close_delay = new_serial.close_delay * HZ / 100;
+		info->port.closing_wait = new_serial.closing_wait * HZ / 100;
+		info->port.tty->low_latency =
+				(info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+		info->port.tty->low_latency = 0;
+		if ((info->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST &&
 				(new_serial.baud_base != info->baud_base ||
 				new_serial.custom_divisor !=
 				info->custom_divisor)) {
 			baud = new_serial.baud_base / new_serial.custom_divisor;
-			tty_encode_baud_rate(info->tty, baud, baud);
+			tty_encode_baud_rate(info->port.tty, baud, baud);
 		}
 	}
 
@@ -1437,8 +1428,8 @@ static int mxser_set_serial_info(struct mxser_port *info,
 
 	process_txrx_fifo(info);
 
-	if (info->flags & ASYNC_INITIALIZED) {
-		if (flags != (info->flags & ASYNC_SPD_MASK)) {
+	if (info->port.flags & ASYNC_INITIALIZED) {
+		if (flags != (info->port.flags & ASYNC_SPD_MASK)) {
 			spin_lock_irqsave(&info->slock, sl_flags);
 			mxser_change_speed(info, NULL);
 			spin_unlock_irqrestore(&info->slock, sl_flags);
@@ -1693,12 +1684,12 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
 					continue;
 				}
 
-				if (!port->tty || !port->tty->termios)
+				if (!port->port.tty || !port->port.tty->termios)
 					GMStatus[i].cflag =
 						port->normal_termios.c_cflag;
 				else
 					GMStatus[i].cflag =
-						port->tty->termios->c_cflag;
+						port->port.tty->termios->c_cflag;
 
 				status = inb(port->ioaddr + UART_MSR);
 				if (status & 0x80 /*UART_MSR_DCD */ )
@@ -1755,14 +1746,14 @@ static int mxser_ioctl_special(unsigned int cmd, void __user *argp)
 				mon_data_ext.modem_status[i] =
 					port->mon_data.modem_status;
 				mon_data_ext.baudrate[i] =
-					tty_get_baud_rate(port->tty);
+					tty_get_baud_rate(port->port.tty);
 
-				if (!port->tty || !port->tty->termios) {
+				if (!port->port.tty || !port->port.tty->termios) {
 					cflag = port->normal_termios.c_cflag;
 					iflag = port->normal_termios.c_iflag;
 				} else {
-					cflag = port->tty->termios->c_cflag;
-					iflag = port->tty->termios->c_iflag;
+					cflag = port->port.tty->termios->c_cflag;
+					iflag = port->port.tty->termios->c_iflag;
 				}
 
 				mon_data_ext.databits[i] = cflag & CSIZE;
@@ -1989,7 +1980,7 @@ static int mxser_ioctl(struct tty_struct *tty, struct file *file,
 		else
 			info->mon_data.hold_reason |= NPPI_NOTIFY_XOFFXENT;
 
-		if (info->tty->hw_stopped)
+		if (info->port.tty->hw_stopped)
 			info->mon_data.hold_reason |= NPPI_NOTIFY_CTSHOLD;
 		else
 			info->mon_data.hold_reason &= ~NPPI_NOTIFY_CTSHOLD;
@@ -2038,7 +2029,7 @@ static void mxser_stoprx(struct tty_struct *tty)
 		}
 	}
 
-	if (info->tty->termios->c_cflag & CRTSCTS) {
+	if (info->port.tty->termios->c_cflag & CRTSCTS) {
 		info->MCR &= ~UART_MCR_RTS;
 		outb(info->MCR, info->ioaddr + UART_MCR);
 	}
@@ -2075,7 +2066,7 @@ static void mxser_unthrottle(struct tty_struct *tty)
 		}
 	}
 
-	if (info->tty->termios->c_cflag & CRTSCTS) {
+	if (info->port.tty->termios->c_cflag & CRTSCTS) {
 		info->MCR |= UART_MCR_RTS;
 		outb(info->MCR, info->ioaddr + UART_MCR);
 	}
@@ -2106,7 +2097,7 @@ static void mxser_start(struct tty_struct *tty)
 	unsigned long flags;
 
 	spin_lock_irqsave(&info->slock, flags);
-	if (info->xmit_cnt && info->xmit_buf) {
+	if (info->xmit_cnt && info->port.xmit_buf) {
 		outb(info->IER & ~UART_IER_THRI, info->ioaddr + UART_IER);
 		info->IER |= UART_IER_THRI;
 		outb(info->IER, info->ioaddr + UART_IER);
@@ -2219,11 +2210,10 @@ static void mxser_hangup(struct tty_struct *tty)
 
 	mxser_flush_buffer(tty);
 	mxser_shutdown(info);
-	info->event = 0;
-	info->count = 0;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
-	wake_up_interruptible(&info->open_wait);
+	info->port.count = 0;
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	info->port.tty = NULL;
+	wake_up_interruptible(&info->port.open_wait);
 }
 
 /*
@@ -2246,7 +2236,7 @@ static void mxser_rs_break(struct tty_struct *tty, int break_state)
 
 static void mxser_receive_chars(struct mxser_port *port, int *status)
 {
-	struct tty_struct *tty = port->tty;
+	struct tty_struct *tty = port->port.tty;
 	unsigned char ch, gdl;
 	int ignored = 0;
 	int cnt = 0;
@@ -2302,7 +2292,7 @@ intr_old:
 					flag = TTY_BREAK;
 					port->icount.brk++;
 
-					if (port->flags & ASYNC_SAK)
+					if (port->port.flags & ASYNC_SAK)
 						do_SAK(tty);
 				} else if (*status & UART_LSR_PE) {
 					flag = TTY_PARITY;
@@ -2333,7 +2323,7 @@ intr_old:
 	} while (*status & UART_LSR_DR);
 
 end_intr:
-	mxvar_log.rxcnt[port->tty->index] += cnt;
+	mxvar_log.rxcnt[port->port.tty->index] += cnt;
 	port->mon_data.rxcnt += cnt;
 	port->mon_data.up_rxcnt += cnt;
 
@@ -2354,18 +2344,18 @@ static void mxser_transmit_chars(struct mxser_port *port)
 	if (port->x_char) {
 		outb(port->x_char, port->ioaddr + UART_TX);
 		port->x_char = 0;
-		mxvar_log.txcnt[port->tty->index]++;
+		mxvar_log.txcnt[port->port.tty->index]++;
 		port->mon_data.txcnt++;
 		port->mon_data.up_txcnt++;
 		port->icount.tx++;
 		return;
 	}
 
-	if (port->xmit_buf == NULL)
+	if (port->port.xmit_buf == NULL)
 		return;
 
-	if ((port->xmit_cnt <= 0) || port->tty->stopped ||
-			(port->tty->hw_stopped &&
+	if ((port->xmit_cnt <= 0) || port->port.tty->stopped ||
+			(port->port.tty->hw_stopped &&
 			(port->type != PORT_16550A) &&
 			(!port->board->chip_flag))) {
 		port->IER &= ~UART_IER_THRI;
@@ -2376,20 +2366,20 @@ static void mxser_transmit_chars(struct mxser_port *port)
 	cnt = port->xmit_cnt;
 	count = port->xmit_fifo_size;
 	do {
-		outb(port->xmit_buf[port->xmit_tail++],
+		outb(port->port.xmit_buf[port->xmit_tail++],
 			port->ioaddr + UART_TX);
 		port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE - 1);
 		if (--port->xmit_cnt <= 0)
 			break;
 	} while (--count > 0);
-	mxvar_log.txcnt[port->tty->index] += (cnt - port->xmit_cnt);
+	mxvar_log.txcnt[port->port.tty->index] += (cnt - port->xmit_cnt);
 
 	port->mon_data.txcnt += (cnt - port->xmit_cnt);
 	port->mon_data.up_txcnt += (cnt - port->xmit_cnt);
 	port->icount.tx += (cnt - port->xmit_cnt);
 
 	if (port->xmit_cnt < WAKEUP_CHARS)
-		tty_wakeup(port->tty);
+		tty_wakeup(port->port.tty);
 
 	if (port->xmit_cnt <= 0) {
 		port->IER &= ~UART_IER_THRI;
@@ -2440,9 +2430,9 @@ static irqreturn_t mxser_interrupt(int irq, void *dev_id)
 				if (iir & UART_IIR_NO_INT)
 					break;
 				iir &= MOXA_MUST_IIR_MASK;
-				if (!port->tty ||
-						(port->flags & ASYNC_CLOSING) ||
-						!(port->flags &
+				if (!port->port.tty ||
+						(port->port.flags & ASYNC_CLOSING) ||
+						!(port->port.flags &
 							ASYNC_INITIALIZED)) {
 					status = inb(port->ioaddr + UART_LSR);
 					outb(0x27, port->ioaddr + UART_FCR);
@@ -2550,6 +2540,7 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
 
 	for (i = 0; i < brd->info->nports; i++) {
 		info = &brd->ports[i];
+		tty_port_init(&info->port);
 		info->board = brd;
 		info->stop_rx = 0;
 		info->ldisc_stop_rx = 0;
@@ -2558,16 +2549,15 @@ static int __devinit mxser_initbrd(struct mxser_board *brd,
 		if (brd->chip_flag != MOXA_OTHER_UART)
 			mxser_enable_must_enchance_mode(info->ioaddr);
 
-		info->flags = ASYNC_SHARE_IRQ;
+		info->port.flags = ASYNC_SHARE_IRQ;
 		info->type = brd->uart_type;
 
 		process_txrx_fifo(info);
 
 		info->custom_divisor = info->baud_base * 16;
-		info->close_delay = 5 * HZ / 10;
-		info->closing_wait = 30 * HZ;
+		info->port.close_delay = 5 * HZ / 10;
+		info->port.closing_wait = 30 * HZ;
 		info->normal_termios = mxvar_sdriver->init_termios;
-		init_waitqueue_head(&info->open_wait);
 		init_waitqueue_head(&info->delta_msr_wait);
 		memset(&info->mon_data, 0, sizeof(struct mxser_mon));
 		info->err_shadow = 0;
diff --git a/drivers/char/n_hdlc.c b/drivers/char/n_hdlc.c
index a35bfd7ee80e..ed4e03333ab4 100644
--- a/drivers/char/n_hdlc.c
+++ b/drivers/char/n_hdlc.c
@@ -199,7 +199,7 @@ static void n_hdlc_tty_wakeup(struct tty_struct *tty);
 #define tty2n_hdlc(tty)	((struct n_hdlc *) ((tty)->disc_data))
 #define n_hdlc2tty(n_hdlc)	((n_hdlc)->tty)
 
-static struct tty_ldisc n_hdlc_ldisc = {
+static struct tty_ldisc_ops n_hdlc_ldisc = {
 	.owner		= THIS_MODULE,
 	.magic		= TTY_LDISC_MAGIC,
 	.name		= "hdlc",
@@ -342,8 +342,8 @@ static int n_hdlc_tty_open (struct tty_struct *tty)
 #endif
 	
 	/* Flush any pending characters in the driver and discipline. */
-	if (tty->ldisc.flush_buffer)
-		tty->ldisc.flush_buffer(tty);
+	if (tty->ldisc.ops->flush_buffer)
+		tty->ldisc.ops->flush_buffer(tty);
 
 	tty_driver_flush_buffer(tty);
 		
diff --git a/drivers/char/n_r3964.c b/drivers/char/n_r3964.c
index 902169062332..ae377aa473ba 100644
--- a/drivers/char/n_r3964.c
+++ b/drivers/char/n_r3964.c
@@ -143,7 +143,7 @@ static unsigned int r3964_poll(struct tty_struct *tty, struct file *file,
 static void r3964_receive_buf(struct tty_struct *tty, const unsigned char *cp,
 		char *fp, int count);
 
-static struct tty_ldisc tty_ldisc_N_R3964 = {
+static struct tty_ldisc_ops tty_ldisc_N_R3964 = {
 	.owner = THIS_MODULE,
 	.magic = TTY_LDISC_MAGIC,
 	.name = "R3964",
diff --git a/drivers/char/n_tty.c b/drivers/char/n_tty.c
index 8096389b0dc2..708c2b1dbe51 100644
--- a/drivers/char/n_tty.c
+++ b/drivers/char/n_tty.c
@@ -1573,7 +1573,7 @@ static unsigned int normal_poll(struct tty_struct *tty, struct file *file,
 	return mask;
 }
 
-struct tty_ldisc tty_ldisc_N_TTY = {
+struct tty_ldisc_ops tty_ldisc_N_TTY = {
 	.magic           = TTY_LDISC_MAGIC,
 	.name            = "n_tty",
 	.open            = n_tty_open,
diff --git a/drivers/char/nvram.c b/drivers/char/nvram.c
index 197cd7a0c332..a22662b6a1a5 100644
--- a/drivers/char/nvram.c
+++ b/drivers/char/nvram.c
@@ -444,7 +444,7 @@ nvram_init(void)
 
 	/* First test whether the driver should init at all */
 	if (!CHECK_DRIVER_INIT())
-		return -ENXIO;
+		return -ENODEV;
 
 	ret = misc_register(&nvram_dev);
 	if (ret) {
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index 1dd0e992c83d..b694d430f10e 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -514,8 +514,8 @@ static void ldisc_receive_buf(struct tty_struct *tty,
 		return;
 	ld = tty_ldisc_ref(tty);
 	if (ld) {
-		if (ld->receive_buf)
-			ld->receive_buf(tty, data, flags, count);
+		if (ld->ops->receive_buf)
+			ld->ops->receive_buf(tty, data, flags, count);
 		tty_ldisc_deref(ld);
 	}
 }
@@ -3886,9 +3886,8 @@ static bool rx_get_frame(MGSLPC_INFO *info)
 		framesize = 0;
 #if SYNCLINK_GENERIC_HDLC
 		{
-			struct net_device_stats *stats = hdlc_stats(info->netdev);
-			stats->rx_errors++;
-			stats->rx_frame_errors++;
+			info->netdev->stats.rx_errors++;
+			info->netdev->stats.rx_frame_errors++;
 		}
 #endif
 	} else
@@ -4144,7 +4143,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	MGSLPC_INFO *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -4159,8 +4157,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 	info->tx_put = info->tx_count = skb->len;
 
 	/* update network statistics */
-	stats->tx_packets++;
-	stats->tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 
 	/* done with socket buffer, so free it */
 	dev_kfree_skb(skb);
@@ -4376,14 +4374,13 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 static void hdlcdev_tx_timeout(struct net_device *dev)
 {
 	MGSLPC_INFO *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("hdlcdev_tx_timeout(%s)\n",dev->name);
 
-	stats->tx_errors++;
-	stats->tx_aborted_errors++;
+	dev->stats.tx_errors++;
+	dev->stats.tx_aborted_errors++;
 
 	spin_lock_irqsave(&info->lock,flags);
 	tx_stop(info);
@@ -4416,27 +4413,26 @@ static void hdlcdev_rx(MGSLPC_INFO *info, char *buf, int size)
 {
 	struct sk_buff *skb = dev_alloc_skb(size);
 	struct net_device *dev = info->netdev;
-	struct net_device_stats *stats = hdlc_stats(dev);
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("hdlcdev_rx(%s)\n",dev->name);
 
 	if (skb == NULL) {
 		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", dev->name);
-		stats->rx_dropped++;
+		dev->stats.rx_dropped++;
 		return;
 	}
 
-	memcpy(skb_put(skb, size),buf,size);
+	memcpy(skb_put(skb, size), buf, size);
 
-	skb->protocol = hdlc_type_trans(skb, info->netdev);
+	skb->protocol = hdlc_type_trans(skb, dev);
 
-	stats->rx_packets++;
-	stats->rx_bytes += size;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
 
-	info->netdev->last_rx = jiffies;
+	dev->last_rx = jiffies;
 }
 
 /**
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index 0a05c038ae6f..76b27932d229 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -111,7 +111,7 @@ static int pty_write(struct tty_struct * tty, const unsigned char *buf, int coun
 	c = to->receive_room;
 	if (c > count)
 		c = count;
-	to->ldisc.receive_buf(to, buf, NULL, c);
+	to->ldisc.ops->receive_buf(to, buf, NULL, c);
 	
 	return c;
 }
@@ -149,11 +149,11 @@ static int pty_chars_in_buffer(struct tty_struct *tty)
 	int count;
 
 	/* We should get the line discipline lock for "tty->link" */
-	if (!to || !to->ldisc.chars_in_buffer)
+	if (!to || !to->ldisc.ops->chars_in_buffer)
 		return 0;
 
 	/* The ldisc must report 0 if no characters available to be read */
-	count = to->ldisc.chars_in_buffer(to);
+	count = to->ldisc.ops->chars_in_buffer(to);
 
 	if (tty->driver->subtype == PTY_TYPE_SLAVE) return count;
 
@@ -186,8 +186,8 @@ static void pty_flush_buffer(struct tty_struct *tty)
 	if (!to)
 		return;
 	
-	if (to->ldisc.flush_buffer)
-		to->ldisc.flush_buffer(to);
+	if (to->ldisc.ops->flush_buffer)
+		to->ldisc.ops->flush_buffer(to);
 	
 	if (to->packet) {
 		spin_lock_irqsave(&tty->ctrl_lock, flags);
diff --git a/drivers/char/rio/cirrus.h b/drivers/char/rio/cirrus.h
index a03a538a3efb..5ab51679caa2 100644
--- a/drivers/char/rio/cirrus.h
+++ b/drivers/char/rio/cirrus.h
@@ -35,9 +35,6 @@
  ***************************************************************************/
 
 #ifndef _cirrus_h
-#ifndef lint
-/* static char* _cirrus_h_sccs = "@(#)cirrus.h	1.16"; */
-#endif
 #define _cirrus_h 1
 
 /* Bit fields for particular registers shared with driver */
diff --git a/drivers/char/rio/cmdblk.h b/drivers/char/rio/cmdblk.h
index c46b2fdb6626..9ed4f861675a 100644
--- a/drivers/char/rio/cmdblk.h
+++ b/drivers/char/rio/cmdblk.h
@@ -33,12 +33,6 @@
 #ifndef __rio_cmdblk_h__
 #define __rio_cmdblk_h__
 
-#ifdef SCCS_LABELS
-#ifndef lint
-static char *_cmdblk_h_sccs_ = "@(#)cmdblk.h	1.2";
-#endif
-#endif
-
 /*
 ** the structure of a command block, used to queue commands destined for
 ** a rup.
diff --git a/drivers/char/rio/cmdpkt.h b/drivers/char/rio/cmdpkt.h
index 357ae5722436..c1e7a2798070 100644
--- a/drivers/char/rio/cmdpkt.h
+++ b/drivers/char/rio/cmdpkt.h
@@ -32,12 +32,6 @@
 #ifndef __rio_cmdpkt_h__
 #define __rio_cmdpkt_h__
 
-#ifdef SCCS_LABELS
-#ifndef lint
-static char *_cmdpkt_h_sccs_ = "@(#)cmdpkt.h	1.2";
-#endif
-#endif
-
 /*
 ** overlays for the data area of a packet. Used in both directions
 ** (to build a packet to send, and to interpret a packet that arrives)
diff --git a/drivers/char/rio/daemon.h b/drivers/char/rio/daemon.h
index 6e63f8b2c479..4af90323fd00 100644
--- a/drivers/char/rio/daemon.h
+++ b/drivers/char/rio/daemon.h
@@ -33,12 +33,6 @@
 #ifndef	__rio_daemon_h__
 #define	__rio_daemon_h__
 
-#ifdef SCCS_LABELS
-#ifndef lint
-static char *_daemon_h_sccs_ = "@(#)daemon.h	1.3";
-#endif
-#endif
-
 
 /*
 ** structures used on /dev/rio
diff --git a/drivers/char/rio/errors.h b/drivers/char/rio/errors.h
index 1d0d89144337..bdb05234090a 100644
--- a/drivers/char/rio/errors.h
+++ b/drivers/char/rio/errors.h
@@ -33,12 +33,6 @@
 #ifndef	__rio_errors_h__
 #define	__rio_errors_h__
 
-#ifdef SCCS_LABELS
-#ifndef lint
-static char *_errors_h_sccs_ = "@(#)errors.h	1.2";
-#endif
-#endif
-
 /*
 ** error codes
 */
diff --git a/drivers/char/rio/func.h b/drivers/char/rio/func.h
index 9e7283bd81a0..078d44f85e45 100644
--- a/drivers/char/rio/func.h
+++ b/drivers/char/rio/func.h
@@ -35,12 +35,6 @@
 
 #include <linux/kdev_t.h>
 
-#ifdef SCCS_LABELS
-#ifndef lint
-static char *_func_h_sccs_ = "@(#)func.h	1.3";
-#endif
-#endif
-
 /* rioboot.c */
 int RIOBootCodeRTA(struct rio_info *, struct DownLoad *);
 int RIOBootCodeHOST(struct rio_info *, struct DownLoad *);
diff --git a/drivers/char/rio/map.h b/drivers/char/rio/map.h
index bdbcd09c8b81..8366978578c1 100644
--- a/drivers/char/rio/map.h
+++ b/drivers/char/rio/map.h
@@ -33,10 +33,6 @@
 #ifndef __rio_map_h__
 #define __rio_map_h__
 
-#ifdef SCCS_LABELS
-static char *_map_h_sccs_ = "@(#)map.h	1.2";
-#endif
-
 /*
 ** mapping structure passed to and from the config.rio program to
 ** determine the current topology of the world
diff --git a/drivers/char/rio/param.h b/drivers/char/rio/param.h
index 675c200b2459..7e9b6283e8aa 100644
--- a/drivers/char/rio/param.h
+++ b/drivers/char/rio/param.h
@@ -33,11 +33,6 @@
 #ifndef __rio_param_h__
 #define __rio_param_h__
 
-#ifdef SCCS_LABELS
-static char *_param_h_sccs_ = "@(#)param.h	1.2";
-#endif
-
-
 /*
 ** the param command block, as used in OPEN and PARAM calls.
 */
diff --git a/drivers/char/rio/parmmap.h b/drivers/char/rio/parmmap.h
index 9764ef85c5a6..acc8fa439df5 100644
--- a/drivers/char/rio/parmmap.h
+++ b/drivers/char/rio/parmmap.h
@@ -37,13 +37,6 @@
 #ifndef _parmap_h
 #define _parmap_h
 
-
-#ifdef SCCS_LABELS
-#ifndef lint
-/* static char *_rio_parmmap_h_sccs = "@(#)parmmap.h	1.4"; */
-#endif
-#endif
-
 typedef struct PARM_MAP PARM_MAP;
 
 struct PARM_MAP {
diff --git a/drivers/char/rio/pci.h b/drivers/char/rio/pci.h
index 1eba9118079b..6032f9135956 100644
--- a/drivers/char/rio/pci.h
+++ b/drivers/char/rio/pci.h
@@ -33,10 +33,6 @@
 #ifndef __rio_pci_h__
 #define	__rio_pci_h__
 
-#ifdef SCCS_LABELS
-static char *_pci_h_sccs_ = "@(#)pci.h	1.2";
-#endif
-
 /*
 ** PCI stuff
 */
diff --git a/drivers/char/rio/protsts.h b/drivers/char/rio/protsts.h
index 69fc4bc34153..8ab79401d3ee 100644
--- a/drivers/char/rio/protsts.h
+++ b/drivers/char/rio/protsts.h
@@ -37,13 +37,6 @@
 #ifndef _protsts_h
 #define _protsts_h 1
 
-
-#ifdef SCCS_LABELS
-#ifndef lint
-/* static char *_rio_protsts_h_sccs = "@(#)protsts.h	1.4"; */
-#endif
-#endif
-
 /*************************************************
  * ACK bit. Last Packet received OK. Set by
  * rxpkt to indicate that the Packet has been
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index 412777cd1e68..0cdfee152916 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -25,11 +25,6 @@
  *      Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139,
  *      USA.
  *
- * Revision history:
- * $Log: rio.c,v $
- * Revision 1.1  1999/07/11 10:13:54  wolff
- * Initial revision
- *
  * */
 
 #include <linux/module.h>
@@ -436,7 +431,7 @@ static void rio_disable_tx_interrupts(void *ptr)
 {
 	func_enter();
 
-	/*  port->gs.flags &= ~GS_TX_INTEN; */
+	/*  port->gs.port.flags &= ~GS_TX_INTEN; */
 
 	func_exit();
 }
@@ -460,7 +455,7 @@ static void rio_enable_tx_interrupts(void *ptr)
 	 * In general we cannot count on "tx empty" interrupts, although
 	 * the interrupt routine seems to be able to tell the difference.
 	 */
-	PortP->gs.flags &= ~GS_TX_INTEN;
+	PortP->gs.port.flags &= ~GS_TX_INTEN;
 
 	func_exit();
 }
@@ -515,7 +510,7 @@ static void rio_shutdown_port(void *ptr)
 	func_enter();
 
 	PortP = (struct Port *) ptr;
-	PortP->gs.tty = NULL;
+	PortP->gs.port.tty = NULL;
 	func_exit();
 }
 
@@ -534,7 +529,7 @@ static void rio_hungup(void *ptr)
 	func_enter();
 
 	PortP = (struct Port *) ptr;
-	PortP->gs.tty = NULL;
+	PortP->gs.port.tty = NULL;
 
 	func_exit();
 }
@@ -554,12 +549,12 @@ static void rio_close(void *ptr)
 
 	riotclose(ptr);
 
-	if (PortP->gs.count) {
-		printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.count);
-		PortP->gs.count = 0;
+	if (PortP->gs.port.count) {
+		printk(KERN_ERR "WARNING port count:%d\n", PortP->gs.port.count);
+		PortP->gs.port.count = 0;
 	}
 
-	PortP->gs.tty = NULL;
+	PortP->gs.port.tty = NULL;
 	func_exit();
 }
 
@@ -854,8 +849,8 @@ static int rio_init_datastructures(void)
 		/*
 		 * Initializing wait queue
 		 */
-		init_waitqueue_head(&port->gs.open_wait);
-		init_waitqueue_head(&port->gs.close_wait);
+		init_waitqueue_head(&port->gs.port.open_wait);
+		init_waitqueue_head(&port->gs.port.close_wait);
 	}
 #else
 	/* We could postpone initializing them to when they are configured. */
diff --git a/drivers/char/rio/rioboard.h b/drivers/char/rio/rioboard.h
index 822c071a693b..252230043c82 100644
--- a/drivers/char/rio/rioboard.h
+++ b/drivers/char/rio/rioboard.h
@@ -29,12 +29,6 @@
 /*									*/
 /************************************************************************/
 
-/* History...
-
-1.0.0	26/04/99 NPV	Creation.
-
-*/
-
 #ifndef	_rioboard_h		/* If RIOBOARD.H not already defined */
 #define	_rioboard_h    1
 
diff --git a/drivers/char/rio/riocmd.c b/drivers/char/rio/riocmd.c
index 7b96e0814887..01f2654d5a2e 100644
--- a/drivers/char/rio/riocmd.c
+++ b/drivers/char/rio/riocmd.c
@@ -30,9 +30,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_riocmd_c_sccs_ = "@(#)riocmd.c	1.2";
-#endif
 
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -487,12 +484,12 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
 				 ** If the device is a modem, then check the modem
 				 ** carrier.
 				 */
-				if (PortP->gs.tty == NULL)
+				if (PortP->gs.port.tty == NULL)
 					break;
-				if (PortP->gs.tty->termios == NULL)
+				if (PortP->gs.port.tty->termios == NULL)
 					break;
 
-				if (!(PortP->gs.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
+				if (!(PortP->gs.port.tty->termios->c_cflag & CLOCAL) && ((PortP->State & (RIO_MOPEN | RIO_WOPEN)))) {
 
 					rio_dprintk(RIO_DEBUG_CMD, "Is there a Carrier?\n");
 					/*
@@ -509,7 +506,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
 							 ** wakeup anyone in WOPEN
 							 */
 							if (PortP->State & (PORT_ISOPEN | RIO_WOPEN))
-								wake_up_interruptible(&PortP->gs.open_wait);
+								wake_up_interruptible(&PortP->gs.port.open_wait);
 						}
 					} else {
 						/*
@@ -517,7 +514,7 @@ static int RIOCommandRup(struct rio_info *p, uint Rup, struct Host *HostP, struc
 						 */
 						if (PortP->State & RIO_CARR_ON) {
 							if (PortP->State & (PORT_ISOPEN | RIO_WOPEN | RIO_MOPEN))
-								tty_hangup(PortP->gs.tty);
+								tty_hangup(PortP->gs.port.tty);
 							PortP->State &= ~RIO_CARR_ON;
 							rio_dprintk(RIO_DEBUG_CMD, "Carrirer just went down\n");
 						}
diff --git a/drivers/char/rio/rioctrl.c b/drivers/char/rio/rioctrl.c
index d65ceb9a434a..eecee0f576d2 100644
--- a/drivers/char/rio/rioctrl.c
+++ b/drivers/char/rio/rioctrl.c
@@ -29,10 +29,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_rioctrl_c_sccs_ = "@(#)rioctrl.c	1.3";
-#endif
-
 
 #include <linux/module.h>
 #include <linux/slab.h>
diff --git a/drivers/char/rio/riodrvr.h b/drivers/char/rio/riodrvr.h
index 3cffe275f216..0907e711b355 100644
--- a/drivers/char/rio/riodrvr.h
+++ b/drivers/char/rio/riodrvr.h
@@ -35,10 +35,6 @@
 
 #include <asm/param.h>		/* for HZ */
 
-#ifdef SCCS_LABELS
-static char *_riodrvr_h_sccs_ = "@(#)riodrvr.h	1.3";
-#endif
-
 #define MEMDUMP_SIZE	32
 #define	MOD_DISABLE	(RIO_NOREAD|RIO_NOWRITE|RIO_NOXPRINT)
 
diff --git a/drivers/char/rio/rioinfo.h b/drivers/char/rio/rioinfo.h
index 8de7966e603a..42ff1e79d96f 100644
--- a/drivers/char/rio/rioinfo.h
+++ b/drivers/char/rio/rioinfo.h
@@ -33,10 +33,6 @@
 #ifndef __rioinfo_h
 #define __rioinfo_h
 
-#ifdef SCCS_LABELS
-static char *_rioinfo_h_sccs_ = "@(#)rioinfo.h	1.2";
-#endif
-
 /*
 ** Host card data structure
 */
diff --git a/drivers/char/rio/rioinit.c b/drivers/char/rio/rioinit.c
index add1718295ef..be0ba401966e 100644
--- a/drivers/char/rio/rioinit.c
+++ b/drivers/char/rio/rioinit.c
@@ -29,9 +29,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_rioinit_c_sccs_ = "@(#)rioinit.c	1.3";
-#endif
 
 #include <linux/module.h>
 #include <linux/slab.h>
diff --git a/drivers/char/rio/riointr.c b/drivers/char/rio/riointr.c
index ea21686c69a4..71f87600907c 100644
--- a/drivers/char/rio/riointr.c
+++ b/drivers/char/rio/riointr.c
@@ -29,10 +29,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_riointr_c_sccs_ = "@(#)riointr.c	1.2";
-#endif
-
 
 #include <linux/module.h>
 #include <linux/slab.h>
@@ -106,7 +102,7 @@ void RIOTxEnable(char *en)
 
 	PortP = (struct Port *) en;
 	p = (struct rio_info *) PortP->p;
-	tty = PortP->gs.tty;
+	tty = PortP->gs.port.tty;
 
 
 	rio_dprintk(RIO_DEBUG_INTR, "tx port %d: %d chars queued.\n", PortP->PortNum, PortP->gs.xmit_cnt);
@@ -162,7 +158,7 @@ void RIOTxEnable(char *en)
 	rio_spin_unlock_irqrestore(&PortP->portSem, flags);
 
 	if (PortP->gs.xmit_cnt <= (PortP->gs.wakeup_chars + 2 * PKT_MAX_DATA_LEN))
-		tty_wakeup(PortP->gs.tty);
+		tty_wakeup(PortP->gs.port.tty);
 
 }
 
@@ -245,7 +241,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
 			 ** find corresponding tty structure. The process of mapping
 			 ** the ports puts these here.
 			 */
-			ttyP = PortP->gs.tty;
+			ttyP = PortP->gs.port.tty;
 
 			/*
 			 ** Lock the port before we begin working on it.
@@ -339,7 +335,7 @@ void RIOServiceHost(struct rio_info *p, struct Host *HostP)
 			 ** find corresponding tty structure. The process of mapping
 			 ** the ports puts these here.
 			 */
-			ttyP = PortP->gs.tty;
+			ttyP = PortP->gs.port.tty;
 			/* If ttyP is NULL, the port is getting closed. Forget about it. */
 			if (!ttyP) {
 				rio_dprintk(RIO_DEBUG_INTR, "no tty, so skipping.\n");
@@ -546,7 +542,7 @@ static void RIOReceive(struct rio_info *p, struct Port *PortP)
 
 	intCount++;
 
-	TtyP = PortP->gs.tty;
+	TtyP = PortP->gs.port.tty;
 	if (!TtyP) {
 		rio_dprintk(RIO_DEBUG_INTR, "RIOReceive: tty is null. \n");
 		return;
diff --git a/drivers/char/rio/rioparam.c b/drivers/char/rio/rioparam.c
index 4810b845cc21..d687c17be152 100644
--- a/drivers/char/rio/rioparam.c
+++ b/drivers/char/rio/rioparam.c
@@ -30,10 +30,6 @@
 ** -----------------------------------------------------------------------------
 */
 
-#ifdef SCCS_LABELS
-static char *_rioparam_c_sccs_ = "@(#)rioparam.c	1.3";
-#endif
-
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/errno.h>
@@ -164,7 +160,7 @@ int RIOParam(struct Port *PortP, int cmd, int Modem, int SleepFlag)
 
 	func_enter();
 
-	TtyP = PortP->gs.tty;
+	TtyP = PortP->gs.port.tty;
 
 	rio_dprintk(RIO_DEBUG_PARAM, "RIOParam: Port:%d cmd:%d Modem:%d SleepFlag:%d Mapped: %d, tty=%p\n", PortP->PortNum, cmd, Modem, SleepFlag, PortP->Mapped, TtyP);
 
diff --git a/drivers/char/rio/rioroute.c b/drivers/char/rio/rioroute.c
index 7a9df7dcf9a8..706c2a25f7aa 100644
--- a/drivers/char/rio/rioroute.c
+++ b/drivers/char/rio/rioroute.c
@@ -29,9 +29,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_rioroute_c_sccs_ = "@(#)rioroute.c	1.3";
-#endif
 
 #include <linux/module.h>
 #include <linux/slab.h>
diff --git a/drivers/char/rio/riospace.h b/drivers/char/rio/riospace.h
index 534f1f5b9f53..ffb31d4332b9 100644
--- a/drivers/char/rio/riospace.h
+++ b/drivers/char/rio/riospace.h
@@ -33,10 +33,6 @@
 #ifndef __rio_riospace_h__
 #define __rio_riospace_h__
 
-#ifdef SCCS_LABELS
-static char *_riospace_h_sccs_ = "@(#)riospace.h	1.2";
-#endif
-
 #define	RIO_LOCATOR_LEN	16
 #define	MAX_RIO_BOARDS	4
 
diff --git a/drivers/char/rio/riotable.c b/drivers/char/rio/riotable.c
index 2b24488e95f2..3d15802dc0f3 100644
--- a/drivers/char/rio/riotable.c
+++ b/drivers/char/rio/riotable.c
@@ -29,9 +29,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_riotable_c_sccs_ = "@(#)riotable.c	1.2";
-#endif
 
 #include <linux/module.h>
 #include <linux/slab.h>
diff --git a/drivers/char/rio/riotty.c b/drivers/char/rio/riotty.c
index c99354843be1..2fb49e89b324 100644
--- a/drivers/char/rio/riotty.c
+++ b/drivers/char/rio/riotty.c
@@ -29,10 +29,6 @@
 **
 ** -----------------------------------------------------------------------------
 */
-#ifdef SCCS_LABELS
-static char *_riotty_c_sccs_ = "@(#)riotty.c	1.3";
-#endif
-
 
 #define __EXPLICIT_DEF_H__
 
@@ -144,14 +140,14 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 
 	tty->driver_data = PortP;
 
-	PortP->gs.tty = tty;
-	PortP->gs.count++;
+	PortP->gs.port.tty = tty;
+	PortP->gs.port.count++;
 
 	rio_dprintk(RIO_DEBUG_TTY, "%d bytes in tx buffer\n", PortP->gs.xmit_cnt);
 
 	retval = gs_init_port(&PortP->gs);
 	if (retval) {
-		PortP->gs.count--;
+		PortP->gs.port.count--;
 		return -ENXIO;
 	}
 	/*
@@ -297,7 +293,7 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 	 ** insert test for carrier here. -- ???
 	 ** I already see that test here. What's the deal? -- REW
 	 */
-	if ((PortP->gs.tty->termios->c_cflag & CLOCAL) ||
+	if ((PortP->gs.port.tty->termios->c_cflag & CLOCAL) ||
 			(PortP->ModemState & RIOC_MSVR1_CD)) {
 		rio_dprintk(RIO_DEBUG_TTY, "open(%d) Modem carr on\n", SysPort);
 		/*
@@ -305,16 +301,16 @@ int riotopen(struct tty_struct *tty, struct file *filp)
 		   wakeup((caddr_t) &tp->tm.c_canq);
 		 */
 		PortP->State |= RIO_CARR_ON;
-		wake_up_interruptible(&PortP->gs.open_wait);
+		wake_up_interruptible(&PortP->gs.port.open_wait);
 	} else {	/* no carrier - wait for DCD */
 			/*
-		   while (!(PortP->gs.tty->termios->c_state & CARR_ON) &&
+		   while (!(PortP->gs.port.tty->termios->c_state & CARR_ON) &&
 		   !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted )
 		 */
 		while (!(PortP->State & RIO_CARR_ON) && !(filp->f_flags & O_NONBLOCK) && !p->RIOHalted) {
 				rio_dprintk(RIO_DEBUG_TTY, "open(%d) sleeping for carr on\n", SysPort);
 			/*
-			   PortP->gs.tty->termios->c_state |= WOPEN;
+			   PortP->gs.port.tty->termios->c_state |= WOPEN;
 			 */
 			PortP->State |= RIO_WOPEN;
 			rio_spin_unlock_irqrestore(&PortP->portSem, flags);
@@ -384,7 +380,7 @@ int riotclose(void *ptr)
 	/* PortP = p->RIOPortp[SysPort]; */
 	rio_dprintk(RIO_DEBUG_TTY, "Port is at address %p\n", PortP);
 	/* tp = PortP->TtyP; *//* Get tty */
-	tty = PortP->gs.tty;
+	tty = PortP->gs.port.tty;
 	rio_dprintk(RIO_DEBUG_TTY, "TTY is at address %p\n", tty);
 
 	if (PortP->gs.closing_wait)
diff --git a/drivers/char/rio/route.h b/drivers/char/rio/route.h
index 769744e575ab..20ed73f3fd7b 100644
--- a/drivers/char/rio/route.h
+++ b/drivers/char/rio/route.h
@@ -37,12 +37,6 @@
 #ifndef _route_h
 #define _route_h
 
-#ifdef SCCS_LABELS
-#ifndef lint
-/* static char *_rio_route_h_sccs = "@(#)route.h	1.3"; */
-#endif
-#endif
-
 #define MAX_LINKS 4
 #define MAX_NODES 17		/* Maximum nodes in a subnet */
 #define NODE_BYTES ((MAX_NODES / 8) + 1)	/* Number of bytes needed for
diff --git a/drivers/char/rio/unixrup.h b/drivers/char/rio/unixrup.h
index 46bd532f7746..7abf0cba0f2c 100644
--- a/drivers/char/rio/unixrup.h
+++ b/drivers/char/rio/unixrup.h
@@ -33,10 +33,6 @@
 #ifndef __rio_unixrup_h__
 #define __rio_unixrup_h__
 
-#ifdef SCCS_LABELS
-static char *_unixrup_h_sccs_ = "@(#)unixrup.h	1.2";
-#endif
-
 /*
 **    UnixRup data structure. This contains pointers to actual RUPs on the
 **    host card, and all the command/boot control stuff.
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index f073c710ab8d..724b2b20f4b2 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -322,7 +322,7 @@ static struct riscom_port *rc_get_port(struct riscom_board const *bp,
 	channel = rc_in(bp, CD180_GICR) >> GICR_CHAN_OFF;
 	if (channel < CD180_NCH)  {
 		port = &rc_port[board_No(bp) * RC_NPORT + channel];
-		if (port->flags & ASYNC_INITIALIZED)
+		if (port->port.flags & ASYNC_INITIALIZED)
 			return port;
 	}
 	printk(KERN_ERR "rc%d: %s interrupt from invalid port %d\n",
@@ -341,7 +341,7 @@ static void rc_receive_exc(struct riscom_board const *bp)
 	if (port == NULL)
 		return;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 #ifdef RC_REPORT_OVERRUN
 	status = rc_in(bp, CD180_RCSR);
@@ -364,7 +364,7 @@ static void rc_receive_exc(struct riscom_board const *bp)
 		printk(KERN_INFO "rc%d: port %d: Handling break...\n",
 		       board_No(bp), port_No(port));
 		flag = TTY_BREAK;
-		if (port->flags & ASYNC_SAK)
+		if (port->port.flags & ASYNC_SAK)
 			do_SAK(tty);
 
 	} else if (status & RCSR_PE)
@@ -392,7 +392,7 @@ static void rc_receive(struct riscom_board const *bp)
 	if (port == NULL)
 		return;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 	count = rc_in(bp, CD180_RDCR);
 
@@ -422,7 +422,7 @@ static void rc_transmit(struct riscom_board const *bp)
 	if (port == NULL)
 		return;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 	if (port->IER & IER_TXEMPTY) {
 		/* FIFO drained */
@@ -467,7 +467,7 @@ static void rc_transmit(struct riscom_board const *bp)
 
 	count = CD180_NFIFO;
 	do {
-		rc_out(bp, CD180_TDR, port->xmit_buf[port->xmit_tail++]);
+		rc_out(bp, CD180_TDR, port->port.xmit_buf[port->xmit_tail++]);
 		port->xmit_tail = port->xmit_tail & (SERIAL_XMIT_SIZE-1);
 		if (--port->xmit_cnt <= 0)
 			break;
@@ -492,12 +492,12 @@ static void rc_check_modem(struct riscom_board const *bp)
 	if (port == NULL)
 		return;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 	mcr = rc_in(bp, CD180_MCR);
 	if (mcr & MCR_CDCHG) {
 		if (rc_in(bp, CD180_MSVR) & MSVR_CD)
-			wake_up_interruptible(&port->open_wait);
+			wake_up_interruptible(&port->port.open_wait);
 		else
 			tty_hangup(tty);
 	}
@@ -632,15 +632,12 @@ static void rc_shutdown_board(struct riscom_board *bp)
  */
 static void rc_change_speed(struct riscom_board *bp, struct riscom_port *port)
 {
-	struct tty_struct *tty = port->tty;
+	struct tty_struct *tty = port->port.tty;
 	unsigned long baud;
 	long tmp;
 	unsigned char cor1 = 0, cor3 = 0;
 	unsigned char mcor1 = 0, mcor2 = 0;
 
-	if (tty == NULL || tty->termios == NULL)
-		return;
-
 	port->IER  = 0;
 	port->COR2 = 0;
 	port->MSVR = MSVR_RTS;
@@ -786,39 +783,30 @@ static int rc_setup_port(struct riscom_board *bp, struct riscom_port *port)
 {
 	unsigned long flags;
 
-	if (port->flags & ASYNC_INITIALIZED)
+	if (port->port.flags & ASYNC_INITIALIZED)
 		return 0;
 
-	if (!port->xmit_buf) {
-		/* We may sleep in get_zeroed_page() */
-		unsigned long tmp = get_zeroed_page(GFP_KERNEL);
-		if (tmp == 0)
-			return -ENOMEM;
-		if (port->xmit_buf)
-			free_page(tmp);
-		else
-			port->xmit_buf = (unsigned char *) tmp;
-	}
+	if (tty_port_alloc_xmit_buf(&port->port) < 0)
+		return -ENOMEM;
+
 	spin_lock_irqsave(&riscom_lock, flags);
 
-	if (port->tty)
-		clear_bit(TTY_IO_ERROR, &port->tty->flags);
-	if (port->count == 1)
+	clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
+	if (port->port.count == 1)
 		bp->count++;
 	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
 	rc_change_speed(bp, port);
-	port->flags |= ASYNC_INITIALIZED;
+	port->port.flags |= ASYNC_INITIALIZED;
 
 	spin_unlock_irqrestore(&riscom_lock, flags);
 	return 0;
 }
 
 /* Must be called with interrupts disabled */
-static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
+static void rc_shutdown_port(struct tty_struct *tty,
+			struct riscom_board *bp, struct riscom_port *port)
 {
-	struct tty_struct *tty;
-
-	if (!(port->flags & ASYNC_INITIALIZED))
+	if (!(port->port.flags & ASYNC_INITIALIZED))
 		return;
 
 #ifdef RC_REPORT_OVERRUN
@@ -836,14 +824,8 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
 		printk("].\n");
 	}
 #endif
-	if (port->xmit_buf)  {
-		free_page((unsigned long) port->xmit_buf);
-		port->xmit_buf = NULL;
-	}
-
-	tty = port->tty;
-
-	if (tty == NULL || C_HUPCL(tty)) {
+	tty_port_free_xmit_buf(&port->port);
+	if (C_HUPCL(tty)) {
 		/* Drop DTR */
 		bp->DTR |= (1u << port_No(port));
 		rc_out(bp, RC_DTR, bp->DTR);
@@ -858,9 +840,8 @@ static void rc_shutdown_port(struct riscom_board *bp, struct riscom_port *port)
 	port->IER = 0;
 	rc_out(bp, CD180_IER, port->IER);
 
-	if (tty)
-		set_bit(TTY_IO_ERROR, &tty->flags);
-	port->flags &= ~ASYNC_INITIALIZED;
+	set_bit(TTY_IO_ERROR, &tty->flags);
+	port->port.flags &= ~ASYNC_INITIALIZED;
 
 	if (--bp->count < 0)  {
 		printk(KERN_INFO "rc%d: rc_shutdown_port: "
@@ -890,9 +871,9 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 * If the device is in the middle of being closed, then block
 	 * until it's done, and then try again.
 	 */
-	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&port->close_wait);
-		if (port->flags & ASYNC_HUP_NOTIFY)
+	if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&port->port.close_wait);
+		if (port->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		else
 			return -ERESTARTSYS;
@@ -904,7 +885,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		port->flags |= ASYNC_NORMAL_ACTIVE;
+		port->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -919,16 +900,16 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 * exit, either normal or abnormal.
 	 */
 	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
+	add_wait_queue(&port->port.open_wait, &wait);
 
 	spin_lock_irqsave(&riscom_lock, flags);
 
 	if (!tty_hung_up_p(filp))
-		port->count--;
+		port->port.count--;
 
 	spin_unlock_irqrestore(&riscom_lock, flags);
 
-	port->blocked_open++;
+	port->port.blocked_open++;
 	while (1) {
 		spin_lock_irqsave(&riscom_lock, flags);
 
@@ -942,14 +923,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (tty_hung_up_p(filp) ||
-		    !(port->flags & ASYNC_INITIALIZED)) {
-			if (port->flags & ASYNC_HUP_NOTIFY)
+		    !(port->port.flags & ASYNC_INITIALIZED)) {
+			if (port->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
 			break;
 		}
-		if (!(port->flags & ASYNC_CLOSING) &&
+		if (!(port->port.flags & ASYNC_CLOSING) &&
 		    (do_clocal || CD))
 			break;
 		if (signal_pending(current)) {
@@ -959,14 +940,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		schedule();
 	}
 	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
+	remove_wait_queue(&port->port.open_wait, &wait);
 	if (!tty_hung_up_p(filp))
-		port->count++;
-	port->blocked_open--;
+		port->port.count++;
+	port->port.blocked_open--;
 	if (retval)
 		return retval;
 
-	port->flags |= ASYNC_NORMAL_ACTIVE;
+	port->port.flags |= ASYNC_NORMAL_ACTIVE;
 	return 0;
 }
 
@@ -990,9 +971,9 @@ static int rc_open(struct tty_struct *tty, struct file *filp)
 	if (error)
 		return error;
 
-	port->count++;
+	port->port.count++;
 	tty->driver_data = port;
-	port->tty = tty;
+	port->port.tty = tty;
 
 	error = rc_setup_port(bp, port);
 	if (error == 0)
@@ -1031,28 +1012,28 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
 		goto out;
 
 	bp = port_Board(port);
-	if ((tty->count == 1) && (port->count != 1))  {
+	if ((tty->count == 1) && (port->port.count != 1))  {
 		printk(KERN_INFO "rc%d: rc_close: bad port count;"
 		       " tty->count is 1, port count is %d\n",
-		       board_No(bp), port->count);
-		port->count = 1;
+		       board_No(bp), port->port.count);
+		port->port.count = 1;
 	}
-	if (--port->count < 0)  {
+	if (--port->port.count < 0)  {
 		printk(KERN_INFO "rc%d: rc_close: bad port count "
 				 "for tty%d: %d\n",
-		       board_No(bp), port_No(port), port->count);
-		port->count = 0;
+		       board_No(bp), port_No(port), port->port.count);
+		port->port.count = 0;
 	}
-	if (port->count)
+	if (port->port.count)
 		goto out;
-	port->flags |= ASYNC_CLOSING;
+	port->port.flags |= ASYNC_CLOSING;
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify
 	 * the line discipline to only process XON/XOFF characters.
 	 */
 	tty->closing = 1;
-	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, port->closing_wait);
+	if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE)
+		tty_wait_until_sent(tty, port->port.closing_wait);
 	/*
 	 * At this point we stop accepting input.  To do this, we
 	 * disable the receive line status interrupts, and tell the
@@ -1060,7 +1041,7 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
 	 * line status register.
 	 */
 	port->IER &= ~IER_RXD;
-	if (port->flags & ASYNC_INITIALIZED) {
+	if (port->port.flags & ASYNC_INITIALIZED) {
 		port->IER &= ~IER_TXRDY;
 		port->IER |= IER_TXEMPTY;
 		rc_out(bp, CD180_CAR, port_No(port));
@@ -1077,19 +1058,19 @@ static void rc_close(struct tty_struct *tty, struct file *filp)
 				break;
 		}
 	}
-	rc_shutdown_port(bp, port);
+	rc_shutdown_port(tty, bp, port);
 	rc_flush_buffer(tty);
 	tty_ldisc_flush(tty);
 
 	tty->closing = 0;
-	port->tty = NULL;
-	if (port->blocked_open) {
-		if (port->close_delay)
-			msleep_interruptible(jiffies_to_msecs(port->close_delay));
-		wake_up_interruptible(&port->open_wait);
+	port->port.tty = NULL;
+	if (port->port.blocked_open) {
+		if (port->port.close_delay)
+			msleep_interruptible(jiffies_to_msecs(port->port.close_delay));
+		wake_up_interruptible(&port->port.open_wait);
 	}
-	port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&port->close_wait);
+	port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	wake_up_interruptible(&port->port.close_wait);
 
 out:
 	spin_unlock_irqrestore(&riscom_lock, flags);
@@ -1108,9 +1089,6 @@ static int rc_write(struct tty_struct *tty,
 
 	bp = port_Board(port);
 
-	if (!tty || !port->xmit_buf)
-		return 0;
-
 	while (1) {
 		spin_lock_irqsave(&riscom_lock, flags);
 
@@ -1119,7 +1097,7 @@ static int rc_write(struct tty_struct *tty,
 		if (c <= 0)
 			break;	/* lock continues to be held */
 
-		memcpy(port->xmit_buf + port->xmit_head, buf, c);
+		memcpy(port->port.xmit_buf + port->xmit_head, buf, c);
 		port->xmit_head = (port->xmit_head + c) & (SERIAL_XMIT_SIZE-1);
 		port->xmit_cnt += c;
 
@@ -1151,15 +1129,12 @@ static int rc_put_char(struct tty_struct *tty, unsigned char ch)
 	if (rc_paranoia_check(port, tty->name, "rc_put_char"))
 		return 0;
 
-	if (!tty || !port->xmit_buf)
-		return 0;
-
 	spin_lock_irqsave(&riscom_lock, flags);
 
 	if (port->xmit_cnt >= SERIAL_XMIT_SIZE - 1)
 		goto out;
 
-	port->xmit_buf[port->xmit_head++] = ch;
+	port->port.xmit_buf[port->xmit_head++] = ch;
 	port->xmit_head &= SERIAL_XMIT_SIZE - 1;
 	port->xmit_cnt++;
 	ret = 1;
@@ -1177,8 +1152,7 @@ static void rc_flush_chars(struct tty_struct *tty)
 	if (rc_paranoia_check(port, tty->name, "rc_flush_chars"))
 		return;
 
-	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped ||
-	    !port->xmit_buf)
+	if (port->xmit_cnt <= 0 || tty->stopped || tty->hw_stopped)
 		return;
 
 	spin_lock_irqsave(&riscom_lock, flags);
@@ -1317,22 +1291,22 @@ static int rc_set_serial_info(struct riscom_port *port,
 		return -EINVAL;
 #endif
 
-	change_speed = ((port->flags & ASYNC_SPD_MASK) !=
+	change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
 			(tmp.flags & ASYNC_SPD_MASK));
 
 	if (!capable(CAP_SYS_ADMIN)) {
-		if ((tmp.close_delay != port->close_delay) ||
-		    (tmp.closing_wait != port->closing_wait) ||
+		if ((tmp.close_delay != port->port.close_delay) ||
+		    (tmp.closing_wait != port->port.closing_wait) ||
 		    ((tmp.flags & ~ASYNC_USR_MASK) !=
-		     (port->flags & ~ASYNC_USR_MASK)))
+		     (port->port.flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
-		port->flags = ((port->flags & ~ASYNC_USR_MASK) |
+		port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
 			       (tmp.flags & ASYNC_USR_MASK));
 	} else  {
-		port->flags = ((port->flags & ~ASYNC_FLAGS) |
+		port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
 			       (tmp.flags & ASYNC_FLAGS));
-		port->close_delay = tmp.close_delay;
-		port->closing_wait = tmp.closing_wait;
+		port->port.close_delay = tmp.close_delay;
+		port->port.closing_wait = tmp.closing_wait;
 	}
 	if (change_speed)  {
 		unsigned long flags;
@@ -1355,10 +1329,10 @@ static int rc_get_serial_info(struct riscom_port *port,
 	tmp.line = port - rc_port;
 	tmp.port = bp->base;
 	tmp.irq  = bp->irq;
-	tmp.flags = port->flags;
+	tmp.flags = port->port.flags;
 	tmp.baud_base = (RC_OSCFREQ + CD180_TPC/2) / CD180_TPC;
-	tmp.close_delay = port->close_delay * HZ/100;
-	tmp.closing_wait = port->closing_wait * HZ/100;
+	tmp.close_delay = port->port.close_delay * HZ/100;
+	tmp.closing_wait = port->port.closing_wait * HZ/100;
 	tmp.xmit_fifo_size = CD180_NFIFO;
 	return copy_to_user(retinfo, &tmp, sizeof(tmp)) ? -EFAULT : 0;
 }
@@ -1480,7 +1454,7 @@ static void rc_start(struct tty_struct *tty)
 
 	spin_lock_irqsave(&riscom_lock, flags);
 
-	if (port->xmit_cnt && port->xmit_buf && !(port->IER & IER_TXRDY)) {
+	if (port->xmit_cnt && port->port.xmit_buf && !(port->IER & IER_TXRDY)) {
 		port->IER |= IER_TXRDY;
 		rc_out(bp, CD180_CAR, port_No(port));
 		rc_out(bp, CD180_IER, port->IER);
@@ -1498,11 +1472,11 @@ static void rc_hangup(struct tty_struct *tty)
 
 	bp = port_Board(port);
 
-	rc_shutdown_port(bp, port);
-	port->count = 0;
-	port->flags &= ~ASYNC_NORMAL_ACTIVE;
-	port->tty = NULL;
-	wake_up_interruptible(&port->open_wait);
+	rc_shutdown_port(tty, bp, port);
+	port->port.count = 0;
+	port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	port->port.tty = NULL;
+	wake_up_interruptible(&port->port.open_wait);
 }
 
 static void rc_set_termios(struct tty_struct *tty,
@@ -1575,11 +1549,8 @@ static int __init rc_init_drivers(void)
 	}
 	memset(rc_port, 0, sizeof(rc_port));
 	for (i = 0; i < RC_NPORT * RC_NBOARD; i++)  {
+		tty_port_init(&rc_port[i].port);
 		rc_port[i].magic = RISCOM8_MAGIC;
-		rc_port[i].close_delay = 50 * HZ / 100;
-		rc_port[i].closing_wait = 3000 * HZ / 100;
-		init_waitqueue_head(&rc_port[i].open_wait);
-		init_waitqueue_head(&rc_port[i].close_wait);
 	}
 	return 0;
 }
diff --git a/drivers/char/riscom8.h b/drivers/char/riscom8.h
index cdfdf4394477..c9876b3f9714 100644
--- a/drivers/char/riscom8.h
+++ b/drivers/char/riscom8.h
@@ -66,23 +66,15 @@ struct riscom_board {
 	
 struct riscom_port {
 	int			magic;
+	struct			tty_port port;
 	int			baud_base;
-	int			flags;
-	struct tty_struct 	* tty;
-	int			count;
-	int			blocked_open;
 	int			timeout;
-	int			close_delay;
-	unsigned char 		* xmit_buf;
 	int			custom_divisor;
 	int			xmit_head;
 	int			xmit_tail;
 	int			xmit_cnt;
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
 	short			wakeup_chars;
 	short			break_length;
-	unsigned short		closing_wait;
 	unsigned char		mark_mask;
 	unsigned char		IER;
 	unsigned char		MSVR;
diff --git a/drivers/char/rocket.c b/drivers/char/rocket.c
index 743dc80a9325..e670eae2f510 100644
--- a/drivers/char/rocket.c
+++ b/drivers/char/rocket.c
@@ -72,6 +72,7 @@
 #include <linux/tty.h>
 #include <linux/tty_driver.h>
 #include <linux/tty_flip.h>
+#include <linux/serial.h>
 #include <linux/string.h>
 #include <linux/fcntl.h>
 #include <linux/ptrace.h>
@@ -81,7 +82,7 @@
 #include <linux/completion.h>
 #include <linux/wait.h>
 #include <linux/pci.h>
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/atomic.h>
 #include <asm/unaligned.h>
 #include <linux/bitops.h>
@@ -434,15 +435,15 @@ static void rp_do_transmit(struct r_port *info)
 #endif
 	if (!info)
 		return;
-	if (!info->tty) {
+	if (!info->port.tty) {
 		printk(KERN_WARNING "rp: WARNING %s called with "
-				"info->tty==NULL\n", __func__);
+				"info->port.tty==NULL\n", __func__);
 		clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 		return;
 	}
 
 	spin_lock_irqsave(&info->slock, flags);
-	tty = info->tty;
+	tty = info->port.tty;
 	info->xmit_fifo_room = TXFIFO_SIZE - sGetTxCnt(cp);
 
 	/*  Loop sending data to FIFO until done or FIFO full */
@@ -502,13 +503,13 @@ static void rp_handle_port(struct r_port *info)
 				"info->flags & NOT_INIT\n");
 		return;
 	}
-	if (!info->tty) {
+	if (!info->port.tty) {
 		printk(KERN_WARNING "rp: WARNING: rp_handle_port called with "
-				"info->tty==NULL\n");
+				"info->port.tty==NULL\n");
 		return;
 	}
 	cp = &info->channel;
-	tty = info->tty;
+	tty = info->port.tty;
 
 	IntMask = sGetChanIntID(cp) & info->intmask;
 #ifdef ROCKET_DEBUG_INTR
@@ -530,7 +531,7 @@ static void rp_handle_port(struct r_port *info)
 			tty_hangup(tty);
 		}
 		info->cd_status = (ChanStatus & CD_ACT) ? 1 : 0;
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
 #ifdef ROCKET_DEBUG_INTR
 	if (IntMask & DELTA_CTS) {	/* CTS change */
@@ -648,9 +649,9 @@ static void init_r_port(int board, int aiop, int chan, struct pci_dev *pci_dev)
 	info->board = board;
 	info->aiop = aiop;
 	info->chan = chan;
-	info->closing_wait = 3000;
-	info->close_delay = 50;
-	init_waitqueue_head(&info->open_wait);
+	info->port.closing_wait = 3000;
+	info->port.close_delay = 50;
+	init_waitqueue_head(&info->port.open_wait);
 	init_completion(&info->close_wait);
 	info->flags &= ~ROCKET_MODE_MASK;
 	switch (pc104[board][line]) {
@@ -717,7 +718,7 @@ static void configure_r_port(struct r_port *info,
 	unsigned rocketMode;
 	int bits, baud, divisor;
 	CHANNEL_t *cp;
-	struct ktermios *t = info->tty->termios;
+	struct ktermios *t = info->port.tty->termios;
 
 	cp = &info->channel;
 	cflag = t->c_cflag;
@@ -750,7 +751,7 @@ static void configure_r_port(struct r_port *info,
 	}
 
 	/* baud rate */
-	baud = tty_get_baud_rate(info->tty);
+	baud = tty_get_baud_rate(info->port.tty);
 	if (!baud)
 		baud = 9600;
 	divisor = ((rp_baud_base[info->board] + (baud >> 1)) / baud) - 1;
@@ -768,7 +769,7 @@ static void configure_r_port(struct r_port *info,
 	sSetBaud(cp, divisor);
 
 	/* FIXME: Should really back compute a baud rate from the divisor */
-	tty_encode_baud_rate(info->tty, baud, baud);
+	tty_encode_baud_rate(info->port.tty, baud, baud);
 
 	if (cflag & CRTSCTS) {
 		info->intmask |= DELTA_CTS;
@@ -793,15 +794,15 @@ static void configure_r_port(struct r_port *info,
 	 * Handle software flow control in the board
 	 */
 #ifdef ROCKET_SOFT_FLOW
-	if (I_IXON(info->tty)) {
+	if (I_IXON(info->port.tty)) {
 		sEnTxSoftFlowCtl(cp);
-		if (I_IXANY(info->tty)) {
+		if (I_IXANY(info->port.tty)) {
 			sEnIXANY(cp);
 		} else {
 			sDisIXANY(cp);
 		}
-		sSetTxXONChar(cp, START_CHAR(info->tty));
-		sSetTxXOFFChar(cp, STOP_CHAR(info->tty));
+		sSetTxXONChar(cp, START_CHAR(info->port.tty));
+		sSetTxXOFFChar(cp, STOP_CHAR(info->port.tty));
 	} else {
 		sDisTxSoftFlowCtl(cp);
 		sDisIXANY(cp);
@@ -813,24 +814,24 @@ static void configure_r_port(struct r_port *info,
 	 * Set up ignore/read mask words
 	 */
 	info->read_status_mask = STMRCVROVRH | 0xFF;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask |= STMFRAMEH | STMPARITYH;
-	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
 		info->read_status_mask |= STMBREAKH;
 
 	/*
 	 * Characters to ignore
 	 */
 	info->ignore_status_mask = 0;
-	if (I_IGNPAR(info->tty))
+	if (I_IGNPAR(info->port.tty))
 		info->ignore_status_mask |= STMFRAMEH | STMPARITYH;
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask |= STMBREAKH;
 		/*
 		 * If we're ignoring parity and break indicators,
 		 * ignore overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty))
+		if (I_IGNPAR(info->port.tty))
 			info->ignore_status_mask |= STMRCVROVRH;
 	}
 
@@ -863,7 +864,7 @@ static void configure_r_port(struct r_port *info,
 	}
 }
 
-/*  info->count is considered critical, protected by spinlocks.  */
+/*  info->port.count is considered critical, protected by spinlocks.  */
 static int block_til_ready(struct tty_struct *tty, struct file *filp,
 			   struct r_port *info)
 {
@@ -897,13 +898,13 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	/*
 	 * Block waiting for the carrier detect and the line to become free.  While we are in
-	 * this loop, info->count is dropped by one, so that rp_close() knows when to free things.  
+	 * this loop, info->port.count is dropped by one, so that rp_close() knows when to free things.
          * We restore it upon exit, either normal or abnormal.
 	 */
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 #ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->count);
+	printk(KERN_INFO "block_til_ready before block: ttyR%d, count = %d\n", info->line, info->port.count);
 #endif
 	spin_lock_irqsave(&info->slock, flags);
 
@@ -912,10 +913,10 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 #else
 	if (!tty_hung_up_p(filp)) {
 		extra_count = 1;
-		info->count--;
+		info->port.count--;
 	}
 #endif
-	info->blocked_open++;
+	info->port.blocked_open++;
 
 	spin_unlock_irqrestore(&info->slock, flags);
 
@@ -940,24 +941,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 		}
 #ifdef ROCKET_DEBUG_OPEN
 		printk(KERN_INFO "block_til_ready blocking: ttyR%d, count = %d, flags=0x%0x\n",
-		     info->line, info->count, info->flags);
+		     info->line, info->port.count, info->flags);
 #endif
 		schedule();	/*  Don't hold spinlock here, will hang PC */
 	}
 	__set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 
 	spin_lock_irqsave(&info->slock, flags);
 
 	if (extra_count)
-		info->count++;
-	info->blocked_open--;
+		info->port.count++;
+	info->port.blocked_open--;
 
 	spin_unlock_irqrestore(&info->slock, flags);
 
 #ifdef ROCKET_DEBUG_OPEN
 	printk(KERN_INFO "block_til_ready after blocking: ttyR%d, count = %d\n",
-	       info->line, info->count);
+	       info->line, info->port.count);
 #endif
 	if (retval)
 		return retval;
@@ -1001,9 +1002,9 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 		info->xmit_buf = (unsigned char *) page;
 
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 
-	if (info->count++ == 0) {
+	if (info->port.count++ == 0) {
 		atomic_inc(&rp_num_ports_open);
 
 #ifdef ROCKET_DEBUG_OPEN
@@ -1012,7 +1013,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 #endif
 	}
 #ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->count);
+	printk(KERN_INFO "rp_open ttyR%d, count=%d\n", info->line, info->port.count);
 #endif
 
 	/*
@@ -1048,13 +1049,13 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 		 * Set up the tty->alt_speed kludge
 		 */
 		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
-			info->tty->alt_speed = 57600;
+			info->port.tty->alt_speed = 57600;
 		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
-			info->tty->alt_speed = 115200;
+			info->port.tty->alt_speed = 115200;
 		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
-			info->tty->alt_speed = 230400;
+			info->port.tty->alt_speed = 230400;
 		if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
-			info->tty->alt_speed = 460800;
+			info->port.tty->alt_speed = 460800;
 
 		configure_r_port(info, NULL);
 		if (tty->termios->c_cflag & CBAUD) {
@@ -1076,7 +1077,7 @@ static int rp_open(struct tty_struct *tty, struct file *filp)
 }
 
 /*
- *  Exception handler that closes a serial port. info->count is considered critical. 
+ *  Exception handler that closes a serial port. info->port.count is considered critical.
  */
 static void rp_close(struct tty_struct *tty, struct file *filp)
 {
@@ -1089,14 +1090,14 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
 		return;
 
 #ifdef ROCKET_DEBUG_OPEN
-	printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->count);
+	printk(KERN_INFO "rp_close ttyR%d, count = %d\n", info->line, info->port.count);
 #endif
 
 	if (tty_hung_up_p(filp))
 		return;
 	spin_lock_irqsave(&info->slock, flags);
 
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * Uh, oh.  tty->count is 1, which means that the tty
 		 * structure will be freed.  Info->count should always
@@ -1105,15 +1106,15 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
 		 * serial port won't be shutdown.
 		 */
 		printk(KERN_WARNING "rp_close: bad serial port count; "
-			"tty->count is 1, info->count is %d\n", info->count);
-		info->count = 1;
+			"tty->count is 1, info->port.count is %d\n", info->port.count);
+		info->port.count = 1;
 	}
-	if (--info->count < 0) {
+	if (--info->port.count < 0) {
 		printk(KERN_WARNING "rp_close: bad serial port count for "
-				"ttyR%d: %d\n", info->line, info->count);
-		info->count = 0;
+				"ttyR%d: %d\n", info->line, info->port.count);
+		info->port.count = 0;
 	}
-	if (info->count) {
+	if (info->port.count) {
 		spin_unlock_irqrestore(&info->slock, flags);
 		return;
 	}
@@ -1137,8 +1138,8 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
 	/*
 	 * Wait for the transmit buffer to clear
 	 */
-	if (info->closing_wait != ROCKET_CLOSING_WAIT_NONE)
-		tty_wait_until_sent(tty, info->closing_wait);
+	if (info->port.closing_wait != ROCKET_CLOSING_WAIT_NONE)
+		tty_wait_until_sent(tty, info->port.closing_wait);
 	/*
 	 * Before we drop DTR, make sure the UART transmitter
 	 * has completely drained; this is especially
@@ -1167,11 +1168,11 @@ static void rp_close(struct tty_struct *tty, struct file *filp)
 
 	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 
-	if (info->blocked_open) {
-		if (info->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(info->close_delay));
+	if (info->port.blocked_open) {
+		if (info->port.close_delay) {
+			msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	} else {
 		if (info->xmit_buf) {
 			free_page((unsigned long) info->xmit_buf);
@@ -1327,8 +1328,8 @@ static int get_config(struct r_port *info, struct rocket_config __user *retinfo)
 	memset(&tmp, 0, sizeof (tmp));
 	tmp.line = info->line;
 	tmp.flags = info->flags;
-	tmp.close_delay = info->close_delay;
-	tmp.closing_wait = info->closing_wait;
+	tmp.close_delay = info->port.close_delay;
+	tmp.closing_wait = info->port.closing_wait;
 	tmp.port = rcktpt_io_addr[(info->line >> 5) & 3];
 
 	if (copy_to_user(retinfo, &tmp, sizeof (*retinfo)))
@@ -1353,17 +1354,17 @@ static int set_config(struct r_port *info, struct rocket_config __user *new_info
 	}
 
 	info->flags = ((info->flags & ~ROCKET_FLAGS) | (new_serial.flags & ROCKET_FLAGS));
-	info->close_delay = new_serial.close_delay;
-	info->closing_wait = new_serial.closing_wait;
+	info->port.close_delay = new_serial.close_delay;
+	info->port.closing_wait = new_serial.closing_wait;
 
 	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_HI)
-		info->tty->alt_speed = 57600;
+		info->port.tty->alt_speed = 57600;
 	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_VHI)
-		info->tty->alt_speed = 115200;
+		info->port.tty->alt_speed = 115200;
 	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_SHI)
-		info->tty->alt_speed = 230400;
+		info->port.tty->alt_speed = 230400;
 	if ((info->flags & ROCKET_SPD_MASK) == ROCKET_SPD_WARP)
-		info->tty->alt_speed = 460800;
+		info->port.tty->alt_speed = 460800;
 
 	configure_r_port(info, NULL);
 	return 0;
@@ -1636,13 +1637,13 @@ static void rp_hangup(struct tty_struct *tty)
 	rp_flush_buffer(tty);
 	if (info->flags & ROCKET_CLOSING)
 		return;
-	if (info->count) 
+	if (info->port.count)
 		atomic_dec(&rp_num_ports_open);
 	clear_bit((info->aiop * 8) + info->chan, (void *) &xmit_flags[info->board]);
 
-	info->count = 0;
+	info->port.count = 0;
 	info->flags &= ~ROCKET_NORMAL_ACTIVE;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
 	cp = &info->channel;
 	sDisRxFIFO(cp);
@@ -1653,7 +1654,7 @@ static void rp_hangup(struct tty_struct *tty)
 	sClrTxXOFF(cp);
 	info->flags &= ~ROCKET_INITIALIZED;
 
-	wake_up_interruptible(&info->open_wait);
+	wake_up_interruptible(&info->port.open_wait);
 }
 
 /*
@@ -1762,7 +1763,7 @@ static int rp_write(struct tty_struct *tty,
 
 	/*  Write remaining data into the port's xmit_buf */
 	while (1) {
-		if (!info->tty)		/* Seemingly obligatory check... */
+		if (!info->port.tty)		/* Seemingly obligatory check... */
 			goto end;
 		c = min(count, XMIT_BUF_SIZE - info->xmit_cnt - 1);
 		c = min(c, XMIT_BUF_SIZE - info->xmit_head);
diff --git a/drivers/char/rocket.h b/drivers/char/rocket.h
index ae6b04f90c03..a8b09195ebba 100644
--- a/drivers/char/rocket.h
+++ b/drivers/char/rocket.h
@@ -64,8 +64,8 @@ struct rocket_version {
 /*
  * For closing_wait and closing_wait2
  */
-#define ROCKET_CLOSING_WAIT_NONE	65535
-#define ROCKET_CLOSING_WAIT_INF		0
+#define ROCKET_CLOSING_WAIT_NONE	ASYNC_CLOSING_WAIT_NONE
+#define ROCKET_CLOSING_WAIT_INF		ASYNC_CLOSING_WAIT_INF
 
 /*
  * Rocketport ioctls -- "RP"
diff --git a/drivers/char/rocket_int.h b/drivers/char/rocket_int.h
index 143cc432fdb2..21f3ff53ba32 100644
--- a/drivers/char/rocket_int.h
+++ b/drivers/char/rocket_int.h
@@ -1125,18 +1125,14 @@ Warnings: This function writes the data byte without checking to see if
 
 struct r_port {
 	int magic;
+	struct tty_port port;
 	int line;
-	int flags;
-	int count;
-	int blocked_open;
-	struct tty_struct *tty;
+	int flags;		/* Don't yet match the ASY_ flags!! */
 	unsigned int board:3;
 	unsigned int aiop:2;
 	unsigned int chan:3;
 	CONTROLLER_t *ctlp;
 	CHANNEL_t channel;
-	int closing_wait;
-	int close_delay;
 	int intmask;
 	int xmit_fifo_room;	/* room in xmit fifo */
 	unsigned char *xmit_buf;
@@ -1148,8 +1144,7 @@ struct r_port {
 	int read_status_mask;
 	int cps;
 
-	wait_queue_head_t open_wait;
-	struct completion close_wait;
+	struct completion close_wait;	/* Not yet matching the core */
 	spinlock_t slock;
 	struct mutex write_mtx;
 };
diff --git a/drivers/char/selection.c b/drivers/char/selection.c
index d63f5ccc29e6..2978a49a172b 100644
--- a/drivers/char/selection.c
+++ b/drivers/char/selection.c
@@ -327,7 +327,8 @@ int paste_selection(struct tty_struct *tty)
 		}
 		count = sel_buffer_lth - pasted;
 		count = min(count, tty->receive_room);
-		tty->ldisc.receive_buf(tty, sel_buffer + pasted, NULL, count);
+		tty->ldisc.ops->receive_buf(tty, sel_buffer + pasted,
+								NULL, count);
 		pasted += count;
 	}
 	remove_wait_queue(&vc->paste_wait, &wait);
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index 2ee4d9893757..037dc47e4cb1 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -608,9 +608,9 @@ static inline struct specialix_port * sx_get_port(struct specialix_board * bp,
 	dprintk (SX_DEBUG_CHAN, "channel: %d\n", channel);
 	if (channel < CD186x_NCH) {
 		port = &sx_port[board_No(bp) * SX_NPORT + channel];
-		dprintk (SX_DEBUG_CHAN, "port: %d %p flags: 0x%x\n",board_No(bp) * SX_NPORT + channel,  port, port->flags & ASYNC_INITIALIZED);
+		dprintk (SX_DEBUG_CHAN, "port: %d %p flags: 0x%lx\n",board_No(bp) * SX_NPORT + channel,  port, port->port.flags & ASYNC_INITIALIZED);
 
-		if (port->flags & ASYNC_INITIALIZED) {
+		if (port->port.flags & ASYNC_INITIALIZED) {
 			dprintk (SX_DEBUG_CHAN, "port: %d %p\n", channel, port);
 			func_exit();
 			return port;
@@ -637,7 +637,7 @@ static inline void sx_receive_exc(struct specialix_board * bp)
 		func_exit();
 		return;
 	}
-	tty = port->tty;
+	tty = port->port.tty;
 
 	status = sx_in(bp, CD186x_RCSR);
 
@@ -673,7 +673,7 @@ static inline void sx_receive_exc(struct specialix_board * bp)
 		dprintk(SX_DEBUG_RX, "sx%d: port %d: Handling break...\n",
 		       board_No(bp), port_No(port));
 		flag = TTY_BREAK;
-		if (port->flags & ASYNC_SAK)
+		if (port->port.flags & ASYNC_SAK)
 			do_SAK(tty);
 
 	} else if (status & RCSR_PE)
@@ -707,7 +707,7 @@ static inline void sx_receive(struct specialix_board * bp)
 		func_exit();
 		return;
 	}
-	tty = port->tty;
+	tty = port->port.tty;
 
 	count = sx_in(bp, CD186x_RDCR);
 	dprintk (SX_DEBUG_RX, "port: %p: count: %d\n", port, count);
@@ -734,7 +734,7 @@ static inline void sx_transmit(struct specialix_board * bp)
 		return;
 	}
 	dprintk (SX_DEBUG_TX, "port: %p\n", port);
-	tty = port->tty;
+	tty = port->port.tty;
 
 	if (port->IER & IER_TXEMPTY) {
 		/* FIFO drained */
@@ -811,7 +811,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
 	if (!(port = sx_get_port(bp, "Modem")))
 		return;
 
-	tty = port->tty;
+	tty = port->port.tty;
 
 	mcr = sx_in(bp, CD186x_MCR);
 	printk ("mcr = %02x.\n", mcr);
@@ -821,7 +821,7 @@ static inline void sx_check_modem(struct specialix_board * bp)
 		msvr_cd = sx_in(bp, CD186x_MSVR) & MSVR_CD;
 		if (msvr_cd) {
 			dprintk (SX_DEBUG_SIGNALS, "Waking up guys in open.\n");
-			wake_up_interruptible(&port->open_wait);
+			wake_up_interruptible(&port->port.open_wait);
 		} else {
 			dprintk (SX_DEBUG_SIGNALS, "Sending HUP.\n");
 			tty_hangup(tty);
@@ -1030,7 +1030,7 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
 
 	func_enter();
 
-	if (!(tty = port->tty) || !tty->termios) {
+	if (!(tty = port->port.tty) || !tty->termios) {
 		func_exit();
 		return;
 	}
@@ -1052,9 +1052,9 @@ static void sx_change_speed(struct specialix_board *bp, struct specialix_port *p
 	baud = tty_get_baud_rate(tty);
 
 	if (baud == 38400) {
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
 			baud = 57600;
-		if ((port->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+		if ((port->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
 			baud = 115200;
 	}
 
@@ -1244,7 +1244,7 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
 
 	func_enter();
 
-	if (port->flags & ASYNC_INITIALIZED) {
+	if (port->port.flags & ASYNC_INITIALIZED) {
 		func_exit();
 		return 0;
 	}
@@ -1268,12 +1268,12 @@ static int sx_setup_port(struct specialix_board *bp, struct specialix_port *port
 
 	spin_lock_irqsave(&port->lock, flags);
 
-	if (port->tty)
-		clear_bit(TTY_IO_ERROR, &port->tty->flags);
+	if (port->port.tty)
+		clear_bit(TTY_IO_ERROR, &port->port.tty->flags);
 
 	port->xmit_cnt = port->xmit_head = port->xmit_tail = 0;
 	sx_change_speed(bp, port);
-	port->flags |= ASYNC_INITIALIZED;
+	port->port.flags |= ASYNC_INITIALIZED;
 
 	spin_unlock_irqrestore(&port->lock, flags);
 
@@ -1292,7 +1292,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
 
 	func_enter();
 
-	if (!(port->flags & ASYNC_INITIALIZED)) {
+	if (!(port->port.flags & ASYNC_INITIALIZED)) {
 		func_exit();
 		return;
 	}
@@ -1315,7 +1315,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
 	spin_lock_irqsave(&bp->lock, flags);
 	sx_out(bp, CD186x_CAR, port_No(port));
 
-	if (!(tty = port->tty) || C_HUPCL(tty)) {
+	if (!(tty = port->port.tty) || C_HUPCL(tty)) {
 		/* Drop DTR */
 		sx_out(bp, CD186x_MSVDTR, 0);
 	}
@@ -1330,7 +1330,7 @@ static void sx_shutdown_port(struct specialix_board *bp, struct specialix_port *
 	spin_unlock_irqrestore(&bp->lock, flags);
 	if (tty)
 		set_bit(TTY_IO_ERROR, &tty->flags);
-	port->flags &= ~ASYNC_INITIALIZED;
+	port->port.flags &= ~ASYNC_INITIALIZED;
 
 	if (!bp->count)
 		sx_shutdown_board(bp);
@@ -1354,9 +1354,9 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	 * If the device is in the middle of being closed, then block
 	 * until it's done, and then try again.
 	 */
-	if (tty_hung_up_p(filp) || port->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&port->close_wait);
-		if (port->flags & ASYNC_HUP_NOTIFY) {
+	if (tty_hung_up_p(filp) || port->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&port->port.close_wait);
+		if (port->port.flags & ASYNC_HUP_NOTIFY) {
 			func_exit();
 			return -EAGAIN;
 		} else {
@@ -1371,7 +1371,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	 */
 	if ((filp->f_flags & O_NONBLOCK) ||
 	    (tty->flags & (1 << TTY_IO_ERROR))) {
-		port->flags |= ASYNC_NORMAL_ACTIVE;
+		port->port.flags |= ASYNC_NORMAL_ACTIVE;
 		func_exit();
 		return 0;
 	}
@@ -1387,13 +1387,13 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	 * exit, either normal or abnormal.
 	 */
 	retval = 0;
-	add_wait_queue(&port->open_wait, &wait);
+	add_wait_queue(&port->port.open_wait, &wait);
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp)) {
-		port->count--;
+		port->port.count--;
 	}
 	spin_unlock_irqrestore(&port->lock, flags);
-	port->blocked_open++;
+	port->port.blocked_open++;
 	while (1) {
 		spin_lock_irqsave(&bp->lock, flags);
 		sx_out(bp, CD186x_CAR, port_No(port));
@@ -1410,14 +1410,14 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		spin_unlock_irqrestore(&bp->lock, flags);
 		set_current_state(TASK_INTERRUPTIBLE);
 		if (tty_hung_up_p(filp) ||
-		    !(port->flags & ASYNC_INITIALIZED)) {
-			if (port->flags & ASYNC_HUP_NOTIFY)
+		    !(port->port.flags & ASYNC_INITIALIZED)) {
+			if (port->port.flags & ASYNC_HUP_NOTIFY)
 				retval = -EAGAIN;
 			else
 				retval = -ERESTARTSYS;
 			break;
 		}
-		if (!(port->flags & ASYNC_CLOSING) &&
+		if (!(port->port.flags & ASYNC_CLOSING) &&
 		    (do_clocal || CD))
 			break;
 		if (signal_pending(current)) {
@@ -1428,19 +1428,19 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	}
 
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&port->open_wait, &wait);
+	remove_wait_queue(&port->port.open_wait, &wait);
 	spin_lock_irqsave(&port->lock, flags);
 	if (!tty_hung_up_p(filp)) {
-		port->count++;
+		port->port.count++;
 	}
-	port->blocked_open--;
+	port->port.blocked_open--;
 	spin_unlock_irqrestore(&port->lock, flags);
 	if (retval) {
 		func_exit();
 		return retval;
 	}
 
-	port->flags |= ASYNC_NORMAL_ACTIVE;
+	port->port.flags |= ASYNC_NORMAL_ACTIVE;
 	func_exit();
 	return 0;
 }
@@ -1484,10 +1484,10 @@ static int sx_open(struct tty_struct * tty, struct file * filp)
 	}
 
 	spin_lock_irqsave(&bp->lock, flags);
-	port->count++;
+	port->port.count++;
 	bp->count++;
 	tty->driver_data = port;
-	port->tty = tty;
+	port->port.tty = tty;
 	spin_unlock_irqrestore(&bp->lock, flags);
 
 	if ((error = sx_setup_port(bp, port))) {
@@ -1547,15 +1547,15 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 	}
 
 	bp = port_Board(port);
-	if ((tty->count == 1) && (port->count != 1)) {
+	if ((tty->count == 1) && (port->port.count != 1)) {
 		printk(KERN_ERR "sx%d: sx_close: bad port count;"
 		       " tty->count is 1, port count is %d\n",
-		       board_No(bp), port->count);
-		port->count = 1;
+		       board_No(bp), port->port.count);
+		port->port.count = 1;
 	}
 
-	if (port->count > 1) {
-		port->count--;
+	if (port->port.count > 1) {
+		port->port.count--;
 		bp->count--;
 
 		spin_unlock_irqrestore(&port->lock, flags);
@@ -1563,7 +1563,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 		func_exit();
 		return;
 	}
-	port->flags |= ASYNC_CLOSING;
+	port->port.flags |= ASYNC_CLOSING;
 	/*
 	 * Now we wait for the transmit buffer to clear; and we notify
 	 * the line discipline to only process XON/XOFF characters.
@@ -1571,8 +1571,8 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 	tty->closing = 1;
 	spin_unlock_irqrestore(&port->lock, flags);
 	dprintk (SX_DEBUG_OPEN, "Closing\n");
-	if (port->closing_wait != ASYNC_CLOSING_WAIT_NONE) {
-		tty_wait_until_sent(tty, port->closing_wait);
+	if (port->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) {
+		tty_wait_until_sent(tty, port->port.closing_wait);
 	}
 	/*
 	 * At this point we stop accepting input.  To do this, we
@@ -1582,7 +1582,7 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 	 */
 	dprintk (SX_DEBUG_OPEN, "Closed\n");
 	port->IER &= ~IER_RXD;
-	if (port->flags & ASYNC_INITIALIZED) {
+	if (port->port.flags & ASYNC_INITIALIZED) {
 		port->IER &= ~IER_TXRDY;
 		port->IER |= IER_TXEMPTY;
 		spin_lock_irqsave(&bp->lock, flags);
@@ -1611,10 +1611,10 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 		       board_No(bp), bp->count, tty->index);
 		bp->count = 0;
 	}
-	if (--port->count < 0) {
+	if (--port->port.count < 0) {
 		printk(KERN_ERR "sx%d: sx_close: bad port count for tty%d: %d\n",
-		       board_No(bp), port_No(port), port->count);
-		port->count = 0;
+		       board_No(bp), port_No(port), port->port.count);
+		port->port.count = 0;
 	}
 
 	sx_shutdown_port(bp, port);
@@ -1622,16 +1622,16 @@ static void sx_close(struct tty_struct * tty, struct file * filp)
 	tty_ldisc_flush(tty);
 	spin_lock_irqsave(&port->lock, flags);
 	tty->closing = 0;
-	port->tty = NULL;
+	port->port.tty = NULL;
 	spin_unlock_irqrestore(&port->lock, flags);
-	if (port->blocked_open) {
-		if (port->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(port->close_delay));
+	if (port->port.blocked_open) {
+		if (port->port.close_delay) {
+			msleep_interruptible(jiffies_to_msecs(port->port.close_delay));
 		}
-		wake_up_interruptible(&port->open_wait);
+		wake_up_interruptible(&port->port.open_wait);
 	}
-	port->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&port->close_wait);
+	port->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	wake_up_interruptible(&port->port.close_wait);
 
 	func_exit();
 }
@@ -1815,7 +1815,7 @@ static int sx_tiocmget(struct tty_struct *tty, struct file *file)
 	dprintk (SX_DEBUG_INIT, "Got msvr[%d] = %02x, car = %d.\n",
 		port_No(port), status, sx_in (bp, CD186x_CAR));
 	dprintk (SX_DEBUG_INIT, "sx_port = %p, port = %p\n", sx_port, port);
-	if (SX_CRTSCTS(port->tty)) {
+	if (SX_CRTSCTS(port->port.tty)) {
 		result  = /*   (status & MSVR_RTS) ? */ TIOCM_DTR /* : 0) */
 		          |   ((status & MSVR_DTR) ? TIOCM_RTS : 0)
 		          |   ((status & MSVR_CD)  ? TIOCM_CAR : 0)
@@ -1857,7 +1857,7 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
    /*   if (set & TIOCM_DTR)
 		port->MSVR |= MSVR_DTR; */
 
-	if (SX_CRTSCTS(port->tty)) {
+	if (SX_CRTSCTS(port->port.tty)) {
 		if (set & TIOCM_RTS)
 			port->MSVR |= MSVR_DTR;
 	} else {
@@ -1869,7 +1869,7 @@ static int sx_tiocmset(struct tty_struct *tty, struct file *file,
 		port->MSVR &= ~MSVR_RTS; */
   /*    if (clear & TIOCM_DTR)
 		port->MSVR &= ~MSVR_DTR; */
-	if (SX_CRTSCTS(port->tty)) {
+	if (SX_CRTSCTS(port->port.tty)) {
 		if (clear & TIOCM_RTS)
 			port->MSVR &= ~MSVR_DTR;
 	} else {
@@ -1929,27 +1929,27 @@ static inline int sx_set_serial_info(struct specialix_port * port,
 
 	lock_kernel();
 
-	change_speed = ((port->flags & ASYNC_SPD_MASK) !=
+	change_speed = ((port->port.flags & ASYNC_SPD_MASK) !=
 			(tmp.flags & ASYNC_SPD_MASK));
 	change_speed |= (tmp.custom_divisor != port->custom_divisor);
 
 	if (!capable(CAP_SYS_ADMIN)) {
-		if ((tmp.close_delay != port->close_delay) ||
-		    (tmp.closing_wait != port->closing_wait) ||
+		if ((tmp.close_delay != port->port.close_delay) ||
+		    (tmp.closing_wait != port->port.closing_wait) ||
 		    ((tmp.flags & ~ASYNC_USR_MASK) !=
-		     (port->flags & ~ASYNC_USR_MASK))) {
+		     (port->port.flags & ~ASYNC_USR_MASK))) {
 			func_exit();
 			unlock_kernel();
 			return -EPERM;
 		}
-		port->flags = ((port->flags & ~ASYNC_USR_MASK) |
+		port->port.flags = ((port->port.flags & ~ASYNC_USR_MASK) |
 		                  (tmp.flags & ASYNC_USR_MASK));
 		port->custom_divisor = tmp.custom_divisor;
 	} else {
-		port->flags = ((port->flags & ~ASYNC_FLAGS) |
+		port->port.flags = ((port->port.flags & ~ASYNC_FLAGS) |
 		                  (tmp.flags & ASYNC_FLAGS));
-		port->close_delay = tmp.close_delay;
-		port->closing_wait = tmp.closing_wait;
+		port->port.close_delay = tmp.close_delay;
+		port->port.closing_wait = tmp.closing_wait;
 		port->custom_divisor = tmp.custom_divisor;
 	}
 	if (change_speed) {
@@ -1975,10 +1975,10 @@ static inline int sx_get_serial_info(struct specialix_port * port,
 	tmp.line = port - sx_port;
 	tmp.port = bp->base;
 	tmp.irq  = bp->irq;
-	tmp.flags = port->flags;
+	tmp.flags = port->port.flags;
 	tmp.baud_base = (SX_OSCFREQ + CD186x_TPC/2) / CD186x_TPC;
-	tmp.close_delay = port->close_delay * HZ/100;
-	tmp.closing_wait = port->closing_wait * HZ/100;
+	tmp.close_delay = port->port.close_delay * HZ/100;
+	tmp.closing_wait = port->port.closing_wait * HZ/100;
 	tmp.custom_divisor =  port->custom_divisor;
 	tmp.xmit_fifo_size = CD186x_NFIFO;
 	unlock_kernel();
@@ -2199,17 +2199,17 @@ static void sx_hangup(struct tty_struct * tty)
 
 	sx_shutdown_port(bp, port);
 	spin_lock_irqsave(&port->lock, flags);
-	bp->count -= port->count;
+	bp->count -= port->port.count;
 	if (bp->count < 0) {
 		printk(KERN_ERR "sx%d: sx_hangup: bad board count: %d port: %d\n",
 			board_No(bp), bp->count, tty->index);
 		bp->count = 0;
 	}
-	port->count = 0;
-	port->flags &= ~ASYNC_NORMAL_ACTIVE;
-	port->tty = NULL;
+	port->port.count = 0;
+	port->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	port->port.tty = NULL;
 	spin_unlock_irqrestore(&port->lock, flags);
-	wake_up_interruptible(&port->open_wait);
+	wake_up_interruptible(&port->port.open_wait);
 
 	func_exit();
 }
@@ -2224,10 +2224,6 @@ static void sx_set_termios(struct tty_struct * tty, struct ktermios * old_termio
 	if (sx_paranoia_check(port, tty->name, "sx_set_termios"))
 		return;
 
-	if (tty->termios->c_cflag == old_termios->c_cflag &&
-	    tty->termios->c_iflag == old_termios->c_iflag)
-		return;
-
 	bp = port_Board(port);
 	spin_lock_irqsave(&port->lock, flags);
 	sx_change_speed(port_Board(port), port);
@@ -2297,10 +2293,7 @@ static int sx_init_drivers(void)
 	memset(sx_port, 0, sizeof(sx_port));
 	for (i = 0; i < SX_NPORT * SX_NBOARD; i++) {
 		sx_port[i].magic = SPECIALIX_MAGIC;
-		sx_port[i].close_delay = 50 * HZ/100;
-		sx_port[i].closing_wait = 3000 * HZ/100;
-		init_waitqueue_head(&sx_port[i].open_wait);
-		init_waitqueue_head(&sx_port[i].close_wait);
+		tty_port_init(&sx_port[i].port);
 		spin_lock_init(&sx_port[i].lock);
 	}
 
diff --git a/drivers/char/specialix_io8.h b/drivers/char/specialix_io8.h
index 3f2f85bdf516..c63005274d9b 100644
--- a/drivers/char/specialix_io8.h
+++ b/drivers/char/specialix_io8.h
@@ -107,23 +107,17 @@ struct specialix_board {
 
 struct specialix_port {
 	int			magic;
+	struct tty_port		port;
 	int			baud_base;
 	int			flags;
-	struct tty_struct 	* tty;
-	int			count;
-	int			blocked_open;
 	int			timeout;
-	int			close_delay;
 	unsigned char 		* xmit_buf;
 	int			custom_divisor;
 	int			xmit_head;
 	int			xmit_tail;
 	int			xmit_cnt;
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
 	short			wakeup_chars;
 	short			break_length;
-	unsigned short		closing_wait;
 	unsigned char		mark_mask;
 	unsigned char		IER;
 	unsigned char		MSVR;
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index d17be10c5d21..0243efb0be95 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -613,17 +613,17 @@ static void stl_cd_change(struct stlport *portp)
 {
 	unsigned int oldsigs = portp->sigs;
 
-	if (!portp->tty)
+	if (!portp->port.tty)
 		return;
 
 	portp->sigs = stl_getsignals(portp);
 
 	if ((portp->sigs & TIOCM_CD) && ((oldsigs & TIOCM_CD) == 0))
-		wake_up_interruptible(&portp->open_wait);
+		wake_up_interruptible(&portp->port.open_wait);
 
 	if ((oldsigs & TIOCM_CD) && ((portp->sigs & TIOCM_CD) == 0))
-		if (portp->flags & ASYNC_CHECK_CD)
-			tty_hangup(portp->tty);
+		if (portp->port.flags & ASYNC_CHECK_CD)
+			tty_hangup(portp->port.tty);
 }
 
 /*
@@ -734,11 +734,11 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
  *	On the first open of the device setup the port hardware, and
  *	initialize the per port data structure.
  */
-	portp->tty = tty;
+	portp->port.tty = tty;
 	tty->driver_data = portp;
-	portp->refcount++;
+	portp->port.count++;
 
-	if ((portp->flags & ASYNC_INITIALIZED) == 0) {
+	if ((portp->port.flags & ASYNC_INITIALIZED) == 0) {
 		if (!portp->tx.buf) {
 			portp->tx.buf = kmalloc(STL_TXBUFSIZE, GFP_KERNEL);
 			if (!portp->tx.buf)
@@ -752,7 +752,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
 		stl_enablerxtx(portp, 1, 1);
 		stl_startrxtx(portp, 1, 0);
 		clear_bit(TTY_IO_ERROR, &tty->flags);
-		portp->flags |= ASYNC_INITIALIZED;
+		portp->port.flags |= ASYNC_INITIALIZED;
 	}
 
 /*
@@ -761,9 +761,9 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
  *	The sleep here does not need interrupt protection since the wakeup
  *	for it is done with the same context.
  */
-	if (portp->flags & ASYNC_CLOSING) {
-		interruptible_sleep_on(&portp->close_wait);
-		if (portp->flags & ASYNC_HUP_NOTIFY)
+	if (portp->port.flags & ASYNC_CLOSING) {
+		interruptible_sleep_on(&portp->port.close_wait);
+		if (portp->port.flags & ASYNC_HUP_NOTIFY)
 			return -EAGAIN;
 		return -ERESTARTSYS;
 	}
@@ -777,7 +777,7 @@ static int stl_open(struct tty_struct *tty, struct file *filp)
 		if ((rc = stl_waitcarrier(portp, filp)) != 0)
 			return rc;
 
-	portp->flags |= ASYNC_NORMAL_ACTIVE;
+	portp->port.flags |= ASYNC_NORMAL_ACTIVE;
 
 	return 0;
 }
@@ -801,25 +801,25 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp)
 
 	spin_lock_irqsave(&stallion_lock, flags);
 
-	if (portp->tty->termios->c_cflag & CLOCAL)
+	if (portp->port.tty->termios->c_cflag & CLOCAL)
 		doclocal++;
 
 	portp->openwaitcnt++;
 	if (! tty_hung_up_p(filp))
-		portp->refcount--;
+		portp->port.count--;
 
 	for (;;) {
 		/* Takes brd_lock internally */
 		stl_setsignals(portp, 1, 1);
 		if (tty_hung_up_p(filp) ||
-		    ((portp->flags & ASYNC_INITIALIZED) == 0)) {
-			if (portp->flags & ASYNC_HUP_NOTIFY)
+		    ((portp->port.flags & ASYNC_INITIALIZED) == 0)) {
+			if (portp->port.flags & ASYNC_HUP_NOTIFY)
 				rc = -EBUSY;
 			else
 				rc = -ERESTARTSYS;
 			break;
 		}
-		if (((portp->flags & ASYNC_CLOSING) == 0) &&
+		if (((portp->port.flags & ASYNC_CLOSING) == 0) &&
 		    (doclocal || (portp->sigs & TIOCM_CD)))
 			break;
 		if (signal_pending(current)) {
@@ -827,11 +827,11 @@ static int stl_waitcarrier(struct stlport *portp, struct file *filp)
 			break;
 		}
 		/* FIXME */
-		interruptible_sleep_on(&portp->open_wait);
+		interruptible_sleep_on(&portp->port.open_wait);
 	}
 
 	if (! tty_hung_up_p(filp))
-		portp->refcount++;
+		portp->port.count++;
 	portp->openwaitcnt--;
 	spin_unlock_irqrestore(&stallion_lock, flags);
 
@@ -904,15 +904,15 @@ static void stl_close(struct tty_struct *tty, struct file *filp)
 		spin_unlock_irqrestore(&stallion_lock, flags);
 		return;
 	}
-	if ((tty->count == 1) && (portp->refcount != 1))
-		portp->refcount = 1;
-	if (portp->refcount-- > 1) {
+	if ((tty->count == 1) && (portp->port.count != 1))
+		portp->port.count = 1;
+	if (portp->port.count-- > 1) {
 		spin_unlock_irqrestore(&stallion_lock, flags);
 		return;
 	}
 
-	portp->refcount = 0;
-	portp->flags |= ASYNC_CLOSING;
+	portp->port.count = 0;
+	portp->port.flags |= ASYNC_CLOSING;
 
 /*
  *	May want to wait for any data to drain before closing. The BUSY
@@ -930,7 +930,7 @@ static void stl_close(struct tty_struct *tty, struct file *filp)
 
 
 	spin_lock_irqsave(&stallion_lock, flags);
-	portp->flags &= ~ASYNC_INITIALIZED;
+	portp->port.flags &= ~ASYNC_INITIALIZED;
 	spin_unlock_irqrestore(&stallion_lock, flags);
 
 	stl_disableintrs(portp);
@@ -949,16 +949,16 @@ static void stl_close(struct tty_struct *tty, struct file *filp)
 	tty_ldisc_flush(tty);
 
 	tty->closing = 0;
-	portp->tty = NULL;
+	portp->port.tty = NULL;
 
 	if (portp->openwaitcnt) {
 		if (portp->close_delay)
 			msleep_interruptible(jiffies_to_msecs(portp->close_delay));
-		wake_up_interruptible(&portp->open_wait);
+		wake_up_interruptible(&portp->port.open_wait);
 	}
 
-	portp->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
-	wake_up_interruptible(&portp->close_wait);
+	portp->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	wake_up_interruptible(&portp->port.close_wait);
 }
 
 /*****************************************************************************/
@@ -1153,7 +1153,7 @@ static int stl_getserial(struct stlport *portp, struct serial_struct __user *sp)
 	memset(&sio, 0, sizeof(struct serial_struct));
 	sio.line = portp->portnr;
 	sio.port = portp->ioaddr;
-	sio.flags = portp->flags;
+	sio.flags = portp->port.flags;
 	sio.baud_base = portp->baud_base;
 	sio.close_delay = portp->close_delay;
 	sio.closing_wait = portp->closing_wait;
@@ -1194,17 +1194,17 @@ static int stl_setserial(struct stlport *portp, struct serial_struct __user *sp)
 		if ((sio.baud_base != portp->baud_base) ||
 		    (sio.close_delay != portp->close_delay) ||
 		    ((sio.flags & ~ASYNC_USR_MASK) !=
-		    (portp->flags & ~ASYNC_USR_MASK)))
+		    (portp->port.flags & ~ASYNC_USR_MASK)))
 			return -EPERM;
 	} 
 
-	portp->flags = (portp->flags & ~ASYNC_USR_MASK) |
+	portp->port.flags = (portp->port.flags & ~ASYNC_USR_MASK) |
 		(sio.flags & ASYNC_USR_MASK);
 	portp->baud_base = sio.baud_base;
 	portp->close_delay = sio.close_delay;
 	portp->closing_wait = sio.closing_wait;
 	portp->custom_divisor = sio.custom_divisor;
-	stl_setport(portp, portp->tty->termios);
+	stl_setport(portp, portp->port.tty->termios);
 	return 0;
 }
 
@@ -1353,7 +1353,7 @@ static void stl_settermios(struct tty_struct *tty, struct ktermios *old)
 		stl_start(tty);
 	}
 	if (((old->c_cflag & CLOCAL) == 0) && (tiosp->c_cflag & CLOCAL))
-		wake_up_interruptible(&portp->open_wait);
+		wake_up_interruptible(&portp->port.open_wait);
 }
 
 /*****************************************************************************/
@@ -1438,7 +1438,7 @@ static void stl_hangup(struct tty_struct *tty)
 	if (portp == NULL)
 		return;
 
-	portp->flags &= ~ASYNC_INITIALIZED;
+	portp->port.flags &= ~ASYNC_INITIALIZED;
 	stl_disableintrs(portp);
 	if (tty->termios->c_cflag & HUPCL)
 		stl_setsignals(portp, 0, 0);
@@ -1452,10 +1452,10 @@ static void stl_hangup(struct tty_struct *tty)
 		portp->tx.head = NULL;
 		portp->tx.tail = NULL;
 	}
-	portp->tty = NULL;
-	portp->flags &= ~ASYNC_NORMAL_ACTIVE;
-	portp->refcount = 0;
-	wake_up_interruptible(&portp->open_wait);
+	portp->port.tty = NULL;
+	portp->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	portp->port.count = 0;
+	wake_up_interruptible(&portp->port.open_wait);
 }
 
 /*****************************************************************************/
@@ -1814,8 +1814,8 @@ static int __devinit stl_initports(struct stlbrd *brdp, struct stlpanel *panelp)
 		portp->baud_base = STL_BAUDBASE;
 		portp->close_delay = STL_CLOSEDELAY;
 		portp->closing_wait = 30 * HZ;
-		init_waitqueue_head(&portp->open_wait);
-		init_waitqueue_head(&portp->close_wait);
+		init_waitqueue_head(&portp->port.open_wait);
+		init_waitqueue_head(&portp->port.close_wait);
 		portp->stats.brd = portp->brdnr;
 		portp->stats.panel = portp->panelnr;
 		portp->stats.port = portp->portnr;
@@ -1840,8 +1840,8 @@ static void stl_cleanup_panels(struct stlbrd *brdp)
 			portp = panelp->ports[k];
 			if (portp == NULL)
 				continue;
-			if (portp->tty != NULL)
-				stl_hangup(portp->tty);
+			if (portp->port.tty != NULL)
+				stl_hangup(portp->port.tty);
 			kfree(portp->tx.buf);
 			kfree(portp);
 		}
@@ -2513,7 +2513,7 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp)
 	}
 
 	portp->stats.state = portp->istate;
-	portp->stats.flags = portp->flags;
+	portp->stats.flags = portp->port.flags;
 	portp->stats.hwid = portp->hwid;
 
 	portp->stats.ttystate = 0;
@@ -2524,16 +2524,16 @@ static int stl_getportstats(struct stlport *portp, comstats_t __user *cp)
 	portp->stats.rxbuffered = 0;
 
 	spin_lock_irqsave(&stallion_lock, flags);
-	if (portp->tty != NULL)
-		if (portp->tty->driver_data == portp) {
-			portp->stats.ttystate = portp->tty->flags;
+	if (portp->port.tty != NULL)
+		if (portp->port.tty->driver_data == portp) {
+			portp->stats.ttystate = portp->port.tty->flags;
 			/* No longer available as a statistic */
-			portp->stats.rxbuffered = 1; /*portp->tty->flip.count; */
-			if (portp->tty->termios != NULL) {
-				portp->stats.cflags = portp->tty->termios->c_cflag;
-				portp->stats.iflags = portp->tty->termios->c_iflag;
-				portp->stats.oflags = portp->tty->termios->c_oflag;
-				portp->stats.lflags = portp->tty->termios->c_lflag;
+			portp->stats.rxbuffered = 1; /*portp->port.tty->flip.count; */
+			if (portp->port.tty->termios != NULL) {
+				portp->stats.cflags = portp->port.tty->termios->c_cflag;
+				portp->stats.iflags = portp->port.tty->termios->c_iflag;
+				portp->stats.oflags = portp->port.tty->termios->c_oflag;
+				portp->stats.lflags = portp->port.tty->termios->c_lflag;
 			}
 		}
 	spin_unlock_irqrestore(&stallion_lock, flags);
@@ -2939,15 +2939,15 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp)
 	}
 	baudrate = stl_baudrates[baudrate];
 	if ((tiosp->c_cflag & CBAUD) == B38400) {
-		if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+		if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
 			baudrate = 57600;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
 			baudrate = 115200;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
 			baudrate = 230400;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
 			baudrate = 460800;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
 			baudrate = (portp->baud_base / portp->custom_divisor);
 	}
 	if (baudrate > STL_CD1400MAXBAUD)
@@ -2969,9 +2969,9 @@ static void stl_cd1400setport(struct stlport *portp, struct ktermios *tiosp)
 		mcor1 |= MCOR1_DCD;
 		mcor2 |= MCOR2_DCD;
 		sreron |= SRER_MODEM;
-		portp->flags |= ASYNC_CHECK_CD;
+		portp->port.flags |= ASYNC_CHECK_CD;
 	} else
-		portp->flags &= ~ASYNC_CHECK_CD;
+		portp->port.flags &= ~ASYNC_CHECK_CD;
 
 /*
  *	Setup cd1400 enhanced modes if we can. In particular we want to
@@ -3242,7 +3242,7 @@ static void stl_cd1400flowctrl(struct stlport *portp, int state)
 
 	if (portp == NULL)
 		return;
-	tty = portp->tty;
+	tty = portp->port.tty;
 	if (tty == NULL)
 		return;
 
@@ -3304,7 +3304,7 @@ static void stl_cd1400sendflow(struct stlport *portp, int state)
 
 	if (portp == NULL)
 		return;
-	tty = portp->tty;
+	tty = portp->port.tty;
 	if (tty == NULL)
 		return;
 
@@ -3503,8 +3503,8 @@ static void stl_cd1400txisr(struct stlpanel *panelp, int ioaddr)
 	if ((len == 0) || ((len < STL_TXBUFLOW) &&
 	    (test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
 		set_bit(ASYI_TXLOW, &portp->istate);
-		if (portp->tty)
-			tty_wakeup(portp->tty);
+		if (portp->port.tty)
+			tty_wakeup(portp->port.tty);
 	}
 
 	if (len == 0) {
@@ -3568,7 +3568,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr)
 		return;
 	}
 	portp = panelp->ports[(ioack >> 3)];
-	tty = portp->tty;
+	tty = portp->port.tty;
 
 	if ((ioack & ACK_TYPMASK) == ACK_TYPRXGOOD) {
 		outb((RDCR + portp->uartaddr), ioaddr);
@@ -3613,7 +3613,7 @@ static void stl_cd1400rxisr(struct stlpanel *panelp, int ioaddr)
 			if (portp->rxmarkmsk & status) {
 				if (status & ST_BREAK) {
 					status = TTY_BREAK;
-					if (portp->flags & ASYNC_SAK) {
+					if (portp->port.flags & ASYNC_SAK) {
 						do_SAK(tty);
 						BRDENABLE(portp->brdnr, portp->pagenr);
 					}
@@ -3899,15 +3899,15 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp)
 	}
 	baudrate = stl_baudrates[baudrate];
 	if ((tiosp->c_cflag & CBAUD) == B38400) {
-		if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
+		if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_HI)
 			baudrate = 57600;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_VHI)
 			baudrate = 115200;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_SHI)
 			baudrate = 230400;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_WARP)
 			baudrate = 460800;
-		else if ((portp->flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
+		else if ((portp->port.flags & ASYNC_SPD_MASK) == ASYNC_SPD_CUST)
 			baudrate = (portp->baud_base / portp->custom_divisor);
 	}
 	if (baudrate > STL_SC26198MAXBAUD)
@@ -3922,11 +3922,11 @@ static void stl_sc26198setport(struct stlport *portp, struct ktermios *tiosp)
  *	Check what form of modem signaling is required and set it up.
  */
 	if (tiosp->c_cflag & CLOCAL) {
-		portp->flags &= ~ASYNC_CHECK_CD;
+		portp->port.flags &= ~ASYNC_CHECK_CD;
 	} else {
 		iopr |= IOPR_DCDCOS;
 		imron |= IR_IOPORT;
-		portp->flags |= ASYNC_CHECK_CD;
+		portp->port.flags |= ASYNC_CHECK_CD;
 	}
 
 /*
@@ -4174,7 +4174,7 @@ static void stl_sc26198flowctrl(struct stlport *portp, int state)
 
 	if (portp == NULL)
 		return;
-	tty = portp->tty;
+	tty = portp->port.tty;
 	if (tty == NULL)
 		return;
 
@@ -4243,7 +4243,7 @@ static void stl_sc26198sendflow(struct stlport *portp, int state)
 
 	if (portp == NULL)
 		return;
-	tty = portp->tty;
+	tty = portp->port.tty;
 	if (tty == NULL)
 		return;
 
@@ -4421,8 +4421,8 @@ static void stl_sc26198txisr(struct stlport *portp)
 	if ((len == 0) || ((len < STL_TXBUFLOW) &&
 	    (test_bit(ASYI_TXLOW, &portp->istate) == 0))) {
 		set_bit(ASYI_TXLOW, &portp->istate);
-		if (portp->tty)
-			tty_wakeup(portp->tty);
+		if (portp->port.tty)
+			tty_wakeup(portp->port.tty);
 	}
 
 	if (len == 0) {
@@ -4475,7 +4475,7 @@ static void stl_sc26198rxisr(struct stlport *portp, unsigned int iack)
 
 	pr_debug("stl_sc26198rxisr(portp=%p,iack=%x)\n", portp, iack);
 
-	tty = portp->tty;
+	tty = portp->port.tty;
 	ioaddr = portp->ioaddr;
 	outb(GIBCR, (ioaddr + XP_ADDR));
 	len = inb(ioaddr + XP_DATA) + 1;
@@ -4527,7 +4527,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char
 	struct tty_struct	*tty;
 	unsigned int		ioaddr;
 
-	tty = portp->tty;
+	tty = portp->port.tty;
 	ioaddr = portp->ioaddr;
 
 	if (status & SR_RXPARITY)
@@ -4544,7 +4544,7 @@ static void stl_sc26198rxbadch(struct stlport *portp, unsigned char status, char
 		if (portp->rxmarkmsk & status) {
 			if (status & SR_RXBREAK) {
 				status = TTY_BREAK;
-				if (portp->flags & ASYNC_SAK) {
+				if (portp->port.flags & ASYNC_SAK) {
 					do_SAK(tty);
 					BRDENABLE(portp->brdnr, portp->pagenr);
 				}
diff --git a/drivers/char/sx.c b/drivers/char/sx.c
index b1a7a8cb65ea..d5cffcd6a572 100644
--- a/drivers/char/sx.c
+++ b/drivers/char/sx.c
@@ -1,4 +1,3 @@
-
 /* sx.c -- driver for the Specialix SX series cards. 
  *
  *  This driver will also support the older SI, and XIO cards.
@@ -930,7 +929,7 @@ static int sx_set_real_termios(void *ptr)
 
 	func_enter2();
 
-	if (!port->gs.tty)
+	if (!port->gs.port.tty)
 		return 0;
 
 	/* What is this doing here? -- REW
@@ -941,19 +940,19 @@ static int sx_set_real_termios(void *ptr)
 
 	sx_set_baud(port);
 
-#define CFLAG port->gs.tty->termios->c_cflag
+#define CFLAG port->gs.port.tty->termios->c_cflag
 	sx_write_channel_byte(port, hi_mr1,
-			(C_PARENB(port->gs.tty) ? MR1_WITH : MR1_NONE) |
-			(C_PARODD(port->gs.tty) ? MR1_ODD : MR1_EVEN) |
-			(C_CRTSCTS(port->gs.tty) ? MR1_RTS_RXFLOW : 0) |
+			(C_PARENB(port->gs.port.tty) ? MR1_WITH : MR1_NONE) |
+			(C_PARODD(port->gs.port.tty) ? MR1_ODD : MR1_EVEN) |
+			(C_CRTSCTS(port->gs.port.tty) ? MR1_RTS_RXFLOW : 0) |
 			(((CFLAG & CSIZE) == CS8) ? MR1_8_BITS : 0) |
 			(((CFLAG & CSIZE) == CS7) ? MR1_7_BITS : 0) |
 			(((CFLAG & CSIZE) == CS6) ? MR1_6_BITS : 0) |
 			(((CFLAG & CSIZE) == CS5) ? MR1_5_BITS : 0));
 
 	sx_write_channel_byte(port, hi_mr2,
-			(C_CRTSCTS(port->gs.tty) ? MR2_CTS_TXFLOW : 0) |
-			(C_CSTOPB(port->gs.tty) ? MR2_2_STOP :
+			(C_CRTSCTS(port->gs.port.tty) ? MR2_CTS_TXFLOW : 0) |
+			(C_CSTOPB(port->gs.port.tty) ? MR2_2_STOP :
 			MR2_1_STOP));
 
 	switch (CFLAG & CSIZE) {
@@ -976,44 +975,44 @@ static int sx_set_real_termios(void *ptr)
 	}
 
 	sx_write_channel_byte(port, hi_prtcl,
-			(I_IXON(port->gs.tty) ? SP_TXEN : 0) |
-			(I_IXOFF(port->gs.tty) ? SP_RXEN : 0) |
-			(I_IXANY(port->gs.tty) ? SP_TANY : 0) | SP_DCEN);
+			(I_IXON(port->gs.port.tty) ? SP_TXEN : 0) |
+			(I_IXOFF(port->gs.port.tty) ? SP_RXEN : 0) |
+			(I_IXANY(port->gs.port.tty) ? SP_TANY : 0) | SP_DCEN);
 
 	sx_write_channel_byte(port, hi_break,
-			(I_IGNBRK(port->gs.tty) ? BR_IGN : 0 |
-			I_BRKINT(port->gs.tty) ? BR_INT : 0));
+			(I_IGNBRK(port->gs.port.tty) ? BR_IGN : 0 |
+			I_BRKINT(port->gs.port.tty) ? BR_INT : 0));
 
-	sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.tty));
-	sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.tty));
-	sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.tty));
-	sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.tty));
+	sx_write_channel_byte(port, hi_txon, START_CHAR(port->gs.port.tty));
+	sx_write_channel_byte(port, hi_rxon, START_CHAR(port->gs.port.tty));
+	sx_write_channel_byte(port, hi_txoff, STOP_CHAR(port->gs.port.tty));
+	sx_write_channel_byte(port, hi_rxoff, STOP_CHAR(port->gs.port.tty));
 
 	sx_reconfigure_port(port);
 
 	/* Tell line discipline whether we will do input cooking */
-	if (I_OTHER(port->gs.tty)) {
-		clear_bit(TTY_HW_COOK_IN, &port->gs.tty->flags);
+	if (I_OTHER(port->gs.port.tty)) {
+		clear_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
 	} else {
-		set_bit(TTY_HW_COOK_IN, &port->gs.tty->flags);
+		set_bit(TTY_HW_COOK_IN, &port->gs.port.tty->flags);
 	}
 	sx_dprintk(SX_DEBUG_TERMIOS, "iflags: %x(%d) ",
-			(unsigned int)port->gs.tty->termios->c_iflag,
-			I_OTHER(port->gs.tty));
+			(unsigned int)port->gs.port.tty->termios->c_iflag,
+			I_OTHER(port->gs.port.tty));
 
 /* Tell line discipline whether we will do output cooking.
  * If OPOST is set and no other output flags are set then we can do output
  * processing.  Even if only *one* other flag in the O_OTHER group is set
  * we do cooking in software.
  */
-	if (O_OPOST(port->gs.tty) && !O_OTHER(port->gs.tty)) {
-		set_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags);
+	if (O_OPOST(port->gs.port.tty) && !O_OTHER(port->gs.port.tty)) {
+		set_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
 	} else {
-		clear_bit(TTY_HW_COOK_OUT, &port->gs.tty->flags);
+		clear_bit(TTY_HW_COOK_OUT, &port->gs.port.tty->flags);
 	}
 	sx_dprintk(SX_DEBUG_TERMIOS, "oflags: %x(%d)\n",
-			(unsigned int)port->gs.tty->termios->c_oflag,
-			O_OTHER(port->gs.tty));
+			(unsigned int)port->gs.port.tty->termios->c_oflag,
+			O_OTHER(port->gs.port.tty));
 	/* port->c_dcd = sx_get_CD (port); */
 	func_exit();
 	return 0;
@@ -1102,8 +1101,8 @@ static void sx_transmit_chars(struct sx_port *port)
 		sx_disable_tx_interrupts(port);
 	}
 
-	if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.tty) {
-		tty_wakeup(port->gs.tty);
+	if ((port->gs.xmit_cnt <= port->gs.wakeup_chars) && port->gs.port.tty) {
+		tty_wakeup(port->gs.port.tty);
 		sx_dprintk(SX_DEBUG_TRANSMIT, "Waking up.... ldisc (%d)....\n",
 				port->gs.wakeup_chars);
 	}
@@ -1126,7 +1125,7 @@ static inline void sx_receive_chars(struct sx_port *port)
 	unsigned char *rp;
 
 	func_enter2();
-	tty = port->gs.tty;
+	tty = port->gs.port.tty;
 	while (1) {
 		rx_op = sx_read_channel_byte(port, hi_rxopos);
 		c = (sx_read_channel_byte(port, hi_rxipos) - rx_op) & 0xff;
@@ -1211,12 +1210,12 @@ static inline void sx_check_modem_signals(struct sx_port *port)
 				/* DCD went UP */
 				if ((sx_read_channel_byte(port, hi_hstat) !=
 						HS_IDLE_CLOSED) &&
-						!(port->gs.tty->termios->
+						!(port->gs.port.tty->termios->
 							c_cflag & CLOCAL)) {
 					/* Are we blocking in open? */
 					sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
 						"active, unblocking open\n");
-					wake_up_interruptible(&port->gs.
+					wake_up_interruptible(&port->gs.port.
 							open_wait);
 				} else {
 					sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
@@ -1224,10 +1223,10 @@ static inline void sx_check_modem_signals(struct sx_port *port)
 				}
 			} else {
 				/* DCD went down! */
-				if (!(port->gs.tty->termios->c_cflag & CLOCAL)){
+				if (!(port->gs.port.tty->termios->c_cflag & CLOCAL)){
 					sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
 						"dropped. hanging up....\n");
-					tty_hangup(port->gs.tty);
+					tty_hangup(port->gs.port.tty);
 				} else {
 					sx_dprintk(SX_DEBUG_MODEMSIGNALS, "DCD "
 						"dropped. ignoring.\n");
@@ -1325,7 +1324,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr)
 
 	for (i = 0; i < board->nports; i++) {
 		port = &board->ports[i];
-		if (port->gs.flags & GS_ACTIVE) {
+		if (port->gs.port.flags & GS_ACTIVE) {
 			if (sx_read_channel_byte(port, hi_state)) {
 				sx_dprintk(SX_DEBUG_INTERRUPTS, "Port %d: "
 						"modem signal change?... \n",i);
@@ -1334,7 +1333,7 @@ static irqreturn_t sx_interrupt(int irq, void *ptr)
 			if (port->gs.xmit_cnt) {
 				sx_transmit_chars(port);
 			}
-			if (!(port->gs.flags & SX_RX_THROTTLE)) {
+			if (!(port->gs.port.flags & SX_RX_THROTTLE)) {
 				sx_receive_chars(port);
 			}
 		}
@@ -1373,7 +1372,7 @@ static void sx_disable_tx_interrupts(void *ptr)
 	struct sx_port *port = ptr;
 	func_enter2();
 
-	port->gs.flags &= ~GS_TX_INTEN;
+	port->gs.port.flags &= ~GS_TX_INTEN;
 
 	func_exit();
 }
@@ -1394,7 +1393,7 @@ static void sx_enable_tx_interrupts(void *ptr)
 
 	/* XXX Must be "HIGH_WATER" for SI card according to doc. */
 	if (data_in_buffer < LOW_WATER)
-		port->gs.flags &= ~GS_TX_INTEN;
+		port->gs.port.flags &= ~GS_TX_INTEN;
 
 	func_exit();
 }
@@ -1442,8 +1441,8 @@ static void sx_shutdown_port(void *ptr)
 
 	func_enter();
 
-	port->gs.flags &= ~GS_ACTIVE;
-	if (port->gs.tty && (port->gs.tty->termios->c_cflag & HUPCL)) {
+	port->gs.port.flags &= ~GS_ACTIVE;
+	if (port->gs.port.tty && (port->gs.port.tty->termios->c_cflag & HUPCL)) {
 		sx_setsignals(port, 0, 0);
 		sx_reconfigure_port(port);
 	}
@@ -1485,8 +1484,8 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
 	spin_lock_irqsave(&port->gs.driver_lock, flags);
 
 	tty->driver_data = port;
-	port->gs.tty = tty;
-	port->gs.count++;
+	port->gs.port.tty = tty;
+	port->gs.port.count++;
 	spin_unlock_irqrestore(&port->gs.driver_lock, flags);
 
 	sx_dprintk(SX_DEBUG_OPEN, "starting port\n");
@@ -1497,12 +1496,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
 	retval = gs_init_port(&port->gs);
 	sx_dprintk(SX_DEBUG_OPEN, "done gs_init\n");
 	if (retval) {
-		port->gs.count--;
+		port->gs.port.count--;
 		return retval;
 	}
 
-	port->gs.flags |= GS_ACTIVE;
-	if (port->gs.count <= 1)
+	port->gs.port.flags |= GS_ACTIVE;
+	if (port->gs.port.count <= 1)
 		sx_setsignals(port, 1, 1);
 
 #if 0
@@ -1513,12 +1512,12 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
 		my_hd_io(port->board->base + port->ch_base, sizeof(*port));
 #endif
 
-	if (port->gs.count <= 1) {
+	if (port->gs.port.count <= 1) {
 		if (sx_send_command(port, HS_LOPEN, -1, HS_IDLE_OPEN) != 1) {
 			printk(KERN_ERR "sx: Card didn't respond to LOPEN "
 					"command.\n");
 			spin_lock_irqsave(&port->gs.driver_lock, flags);
-			port->gs.count--;
+			port->gs.port.count--;
 			spin_unlock_irqrestore(&port->gs.driver_lock, flags);
 			return -EIO;
 		}
@@ -1526,11 +1525,11 @@ static int sx_open(struct tty_struct *tty, struct file *filp)
 
 	retval = gs_block_til_ready(port, filp);
 	sx_dprintk(SX_DEBUG_OPEN, "Block til ready returned %d. Count=%d\n",
-			retval, port->gs.count);
+			retval, port->gs.port.count);
 
 	if (retval) {
 /*
- * Don't lower gs.count here because sx_close() will be called later
+ * Don't lower gs.port.count here because sx_close() will be called later
  */
 
 		return retval;
@@ -1571,14 +1570,14 @@ static void sx_close(void *ptr)
 	}
 
 	sx_dprintk(SX_DEBUG_CLOSE, "waited %d jiffies for close. count=%d\n",
-			5 * HZ - to - 1, port->gs.count);
+			5 * HZ - to - 1, port->gs.port.count);
 
-	if (port->gs.count) {
+	if (port->gs.port.count) {
 		sx_dprintk(SX_DEBUG_CLOSE, "WARNING port count:%d\n",
-				port->gs.count);
+				port->gs.port.count);
 		/*printk("%s SETTING port count to zero: %p count: %d\n",
-				__func__, port, port->gs.count);
-		port->gs.count = 0;*/
+				__func__, port, port->gs.port.count);
+		port->gs.port.count = 0;*/
 	}
 
 	func_exit();
@@ -1939,7 +1938,7 @@ static void sx_throttle(struct tty_struct *tty)
 	 * control then throttle the port.
 	 */
 	if ((tty->termios->c_cflag & CRTSCTS) || (I_IXOFF(tty))) {
-		port->gs.flags |= SX_RX_THROTTLE;
+		port->gs.port.flags |= SX_RX_THROTTLE;
 	}
 	func_exit();
 }
@@ -1953,7 +1952,7 @@ static void sx_unthrottle(struct tty_struct *tty)
 	 * this port in case we disabled flow control while the port
 	 * was throttled
 	 */
-	port->gs.flags &= ~SX_RX_THROTTLE;
+	port->gs.port.flags &= ~SX_RX_THROTTLE;
 	func_exit();
 	return;
 }
@@ -2396,6 +2395,7 @@ static int sx_init_portstructs(int nboards, int nports)
 		board->ports = port;
 		for (j = 0; j < boards[i].nports; j++) {
 			sx_dprintk(SX_DEBUG_INIT, "initing port %d\n", j);
+			tty_port_init(&port->gs.port);
 			port->gs.magic = SX_MAGIC;
 			port->gs.close_delay = HZ / 2;
 			port->gs.closing_wait = 30 * HZ;
@@ -2408,9 +2408,6 @@ static int sx_init_portstructs(int nboards, int nports)
 			/*
 			 * Initializing wait queue
 			 */
-			init_waitqueue_head(&port->gs.open_wait);
-			init_waitqueue_head(&port->gs.close_wait);
-
 			port++;
 		}
 	}
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index ac5080df2565..527d220aa4aa 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -180,19 +180,14 @@ struct tx_holding_buffer {
  
 struct mgsl_struct {
 	int			magic;
-	int			flags;
-	int			count;		/* count of opens */
+	struct tty_port		port;
 	int			line;
 	int                     hw_version;
-	unsigned short		close_delay;
-	unsigned short		closing_wait;	/* time to wait before closing */
 	
 	struct mgsl_icount	icount;
 	
-	struct tty_struct 	*tty;
 	int			timeout;
 	int			x_char;		/* xon/xoff character */
-	int			blocked_open;	/* # of blocked opens */
 	u16			read_status_mask;
 	u16			ignore_status_mask;	
 	unsigned char 		*xmit_buf;
@@ -200,9 +195,6 @@ struct mgsl_struct {
 	int			xmit_tail;
 	int			xmit_cnt;
 	
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
-	
 	wait_queue_head_t	status_event_wait_q;
 	wait_queue_head_t	event_wait_q;
 	struct timer_list	tx_timer;	/* HDLC transmit timeout timer */
@@ -975,8 +967,8 @@ static void ldisc_receive_buf(struct tty_struct *tty,
 		return;
 	ld = tty_ldisc_ref(tty);
 	if (ld) {
-		if (ld->receive_buf)
-			ld->receive_buf(tty, data, flags, count);
+		if (ld->ops->receive_buf)
+			ld->ops->receive_buf(tty, data, flags, count);
 		tty_ldisc_deref(ld);
 	}
 }
@@ -1134,7 +1126,7 @@ static void mgsl_bh_receive(struct mgsl_struct *info)
 
 static void mgsl_bh_transmit(struct mgsl_struct *info)
 {
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	unsigned long flags;
 	
 	if ( debug_level >= DEBUG_LEVEL_BH )
@@ -1276,7 +1268,7 @@ static void mgsl_isr_transmit_status( struct mgsl_struct *info )
 	else 
 #endif
 	{
-		if (info->tty->stopped || info->tty->hw_stopped) {
+		if (info->port.tty->stopped || info->port.tty->hw_stopped) {
 			usc_stop_transmitter(info);
 			return;
 		}
@@ -1357,29 +1349,29 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
 		wake_up_interruptible(&info->status_event_wait_q);
 		wake_up_interruptible(&info->event_wait_q);
 
-		if ( (info->flags & ASYNC_CHECK_CD) && 
+		if ( (info->port.flags & ASYNC_CHECK_CD) && 
 		     (status & MISCSTATUS_DCD_LATCHED) ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
 				printk("%s CD now %s...", info->device_name,
 				       (status & MISCSTATUS_DCD) ? "on" : "off");
 			if (status & MISCSTATUS_DCD)
-				wake_up_interruptible(&info->open_wait);
+				wake_up_interruptible(&info->port.open_wait);
 			else {
 				if ( debug_level >= DEBUG_LEVEL_ISR )
 					printk("doing serial hangup...");
-				if (info->tty)
-					tty_hangup(info->tty);
+				if (info->port.tty)
+					tty_hangup(info->port.tty);
 			}
 		}
 	
-		if ( (info->flags & ASYNC_CTS_FLOW) && 
+		if ( (info->port.flags & ASYNC_CTS_FLOW) && 
 		     (status & MISCSTATUS_CTS_LATCHED) ) {
-			if (info->tty->hw_stopped) {
+			if (info->port.tty->hw_stopped) {
 				if (status & MISCSTATUS_CTS) {
 					if ( debug_level >= DEBUG_LEVEL_ISR )
 						printk("CTS tx start...");
-					if (info->tty)
-						info->tty->hw_stopped = 0;
+					if (info->port.tty)
+						info->port.tty->hw_stopped = 0;
 					usc_start_transmitter(info);
 					info->pending_bh |= BH_TRANSMIT;
 					return;
@@ -1388,8 +1380,8 @@ static void mgsl_isr_io_pin( struct mgsl_struct *info )
 				if (!(status & MISCSTATUS_CTS)) {
 					if ( debug_level >= DEBUG_LEVEL_ISR )
 						printk("CTS tx stop...");
-					if (info->tty)
-						info->tty->hw_stopped = 1;
+					if (info->port.tty)
+						info->port.tty->hw_stopped = 1;
 					usc_stop_transmitter(info);
 				}
 			}
@@ -1423,7 +1415,7 @@ static void mgsl_isr_transmit_data( struct mgsl_struct *info )
 			
 	usc_ClearIrqPendingBits( info, TRANSMIT_DATA );
 	
-	if (info->tty->stopped || info->tty->hw_stopped) {
+	if (info->port.tty->stopped || info->port.tty->hw_stopped) {
 		usc_stop_transmitter(info);
 		return;
 	}
@@ -1453,7 +1445,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )
 	u16 status;
 	int work = 0;
 	unsigned char DataByte;
- 	struct tty_struct *tty = info->tty;
+ 	struct tty_struct *tty = info->port.tty;
  	struct	mgsl_icount *icount = &info->icount;
 	
 	if ( debug_level >= DEBUG_LEVEL_ISR )	
@@ -1514,7 +1506,7 @@ static void mgsl_isr_receive_data( struct mgsl_struct *info )
 		
 			if (status & RXSTATUS_BREAK_RECEIVED) {
 				flag = TTY_BREAK;
-				if (info->flags & ASYNC_SAK)
+				if (info->port.flags & ASYNC_SAK)
 					do_SAK(tty);
 			} else if (status & RXSTATUS_PARITY_ERROR)
 				flag = TTY_PARITY;
@@ -1771,7 +1763,7 @@ static int startup(struct mgsl_struct * info)
 	if ( debug_level >= DEBUG_LEVEL_INFO )
 		printk("%s(%d):mgsl_startup(%s)\n",__FILE__,__LINE__,info->device_name);
 		
-	if (info->flags & ASYNC_INITIALIZED)
+	if (info->port.flags & ASYNC_INITIALIZED)
 		return 0;
 	
 	if (!info->xmit_buf) {
@@ -1798,8 +1790,8 @@ static int startup(struct mgsl_struct * info)
 		retval = mgsl_adapter_test(info);
 		
 	if ( retval ) {
-  		if (capable(CAP_SYS_ADMIN) && info->tty)
-			set_bit(TTY_IO_ERROR, &info->tty->flags);
+  		if (capable(CAP_SYS_ADMIN) && info->port.tty)
+			set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 		mgsl_release_resources(info);
   		return retval;
   	}
@@ -1807,10 +1799,10 @@ static int startup(struct mgsl_struct * info)
 	/* program hardware for current parameters */
 	mgsl_change_params(info);
 	
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags |= ASYNC_INITIALIZED;
+	info->port.flags |= ASYNC_INITIALIZED;
 	
 	return 0;
 	
@@ -1827,7 +1819,7 @@ static void shutdown(struct mgsl_struct * info)
 {
 	unsigned long flags;
 	
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -1864,7 +1856,7 @@ static void shutdown(struct mgsl_struct * info)
 	/* on the ISA adapter. This has no effect for the PCI adapter */
 	usc_OutReg(info, PCR, (u16)((usc_InReg(info, PCR) | BIT13) | BIT12));
 	
- 	if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		usc_set_serial_signals(info);
 	}
@@ -1873,10 +1865,10 @@ static void shutdown(struct mgsl_struct * info)
 
 	mgsl_release_resources(info);	
 	
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags &= ~ASYNC_INITIALIZED;
+	info->port.flags &= ~ASYNC_INITIALIZED;
 	
 }	/* end of shutdown() */
 
@@ -1908,7 +1900,7 @@ static void mgsl_program_hw(struct mgsl_struct *info)
 	usc_EnableInterrupts(info, IO_PIN);
 	usc_get_serial_signals(info);
 		
-	if (info->netcount || info->tty->termios->c_cflag & CREAD)
+	if (info->netcount || info->port.tty->termios->c_cflag & CREAD)
 		usc_start_receiver(info);
 		
 	spin_unlock_irqrestore(&info->irq_spinlock,flags);
@@ -1921,14 +1913,14 @@ static void mgsl_change_params(struct mgsl_struct *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return;
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_change_params(%s)\n",
 			 __FILE__,__LINE__, info->device_name );
 			 
-	cflag = info->tty->termios->c_cflag;
+	cflag = info->port.tty->termios->c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -1976,7 +1968,7 @@ static void mgsl_change_params(struct mgsl_struct *info)
 	 * current data rate.
 	 */
 	if (info->params.data_rate <= 460800)
-		info->params.data_rate = tty_get_baud_rate(info->tty);
+		info->params.data_rate = tty_get_baud_rate(info->port.tty);
 	
 	if ( info->params.data_rate ) {
 		info->timeout = (32*HZ*bits_per_char) / 
@@ -1985,31 +1977,31 @@ static void mgsl_change_params(struct mgsl_struct *info)
 	info->timeout += HZ/50;		/* Add .02 seconds of slop */
 
 	if (cflag & CRTSCTS)
-		info->flags |= ASYNC_CTS_FLOW;
+		info->port.flags |= ASYNC_CTS_FLOW;
 	else
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 		
 	if (cflag & CLOCAL)
-		info->flags &= ~ASYNC_CHECK_CD;
+		info->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		info->flags |= ASYNC_CHECK_CD;
+		info->port.flags |= ASYNC_CHECK_CD;
 
 	/* process tty input control flags */
 	
 	info->read_status_mask = RXSTATUS_OVERRUN;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
- 	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
  		info->read_status_mask |= RXSTATUS_BREAK_RECEIVED;
 	
-	if (I_IGNPAR(info->tty))
+	if (I_IGNPAR(info->port.tty))
 		info->ignore_status_mask |= RXSTATUS_PARITY_ERROR | RXSTATUS_FRAMING_ERROR;
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask |= RXSTATUS_BREAK_RECEIVED;
 		/* If ignoring parity and break indicators, ignore 
 		 * overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty))
+		if (I_IGNPAR(info->port.tty))
 			info->ignore_status_mask |= RXSTATUS_OVERRUN;
 	}
 
@@ -3113,32 +3105,32 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_close(%s) entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->count);
+			 __FILE__,__LINE__, info->device_name, info->port.count);
 			 
-	if (!info->count)
+	if (!info->port.count)
 		return;
 
 	if (tty_hung_up_p(filp))
 		goto cleanup;
 			
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * tty->count is 1 and the tty structure will be freed.
-		 * info->count should be one in this case.
+		 * info->port.count should be one in this case.
 		 * if it's not, correct it so that the port is shutdown.
 		 */
 		printk("mgsl_close: bad refcount; tty->count is 1, "
-		       "info->count is %d\n", info->count);
-		info->count = 1;
+		       "info->port.count is %d\n", info->port.count);
+		info->port.count = 1;
 	}
 	
-	info->count--;
+	info->port.count--;
 	
 	/* if at least one open remaining, leave hardware active */
-	if (info->count)
+	if (info->port.count)
 		goto cleanup;
 	
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 	
 	/* set tty->closing to notify line discipline to 
 	 * only process XON/XOFF characters. Only the N_TTY
@@ -3148,14 +3140,14 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 	
 	/* wait for transmit data to clear all layers */
 	
-	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) {
+	if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) {
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):mgsl_close(%s) calling tty_wait_until_sent\n",
 				 __FILE__,__LINE__, info->device_name );
-		tty_wait_until_sent(tty, info->closing_wait);
+		tty_wait_until_sent(tty, info->port.closing_wait);
 	}
 		
- 	if (info->flags & ASYNC_INITIALIZED)
+ 	if (info->port.flags & ASYNC_INITIALIZED)
  		mgsl_wait_until_sent(tty, info->timeout);
 
 	mgsl_flush_buffer(tty);
@@ -3165,23 +3157,23 @@ static void mgsl_close(struct tty_struct *tty, struct file * filp)
 	shutdown(info);
 	
 	tty->closing = 0;
-	info->tty = NULL;
+	info->port.tty = NULL;
 	
-	if (info->blocked_open) {
-		if (info->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(info->close_delay));
+	if (info->port.blocked_open) {
+		if (info->port.close_delay) {
+			msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
 	
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
 			 
-	wake_up_interruptible(&info->close_wait);
+	wake_up_interruptible(&info->port.close_wait);
 	
 cleanup:			
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_close(%s) exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->count);
+			tty->driver->name, info->port.count);
 			
 }	/* end of mgsl_close() */
 
@@ -3211,7 +3203,7 @@ static void mgsl_wait_until_sent(struct tty_struct *tty, int timeout)
 	if (mgsl_paranoia_check(info, tty->name, "mgsl_wait_until_sent"))
 		return;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		goto exit;
 	 
 	orig_jiffies = jiffies;
@@ -3283,11 +3275,11 @@ static void mgsl_hangup(struct tty_struct *tty)
 	mgsl_flush_buffer(tty);
 	shutdown(info);
 	
-	info->count = 0;	
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
+	info->port.count = 0;	
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	info->port.tty = NULL;
 
-	wake_up_interruptible(&info->open_wait);
+	wake_up_interruptible(&info->port.open_wait);
 	
 }	/* end of mgsl_hangup() */
 
@@ -3319,7 +3311,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 
 	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
 		/* nonblock mode is set or port is not enabled */
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -3328,25 +3320,25 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 
 	/* Wait for carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
+	 * this loop, info->port.count is dropped by one, so that
 	 * mgsl_close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 	 
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):block_til_ready before block on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, info->count );
+			 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 	spin_lock_irqsave(&info->irq_spinlock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		info->count--;
+		info->port.count--;
 	}
 	spin_unlock_irqrestore(&info->irq_spinlock, flags);
-	info->blocked_open++;
+	info->port.blocked_open++;
 	
 	while (1) {
 		if (tty->termios->c_cflag & CBAUD) {
@@ -3358,8 +3350,8 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		
 		set_current_state(TASK_INTERRUPTIBLE);
 		
-		if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){
-			retval = (info->flags & ASYNC_HUP_NOTIFY) ?
+		if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){
+			retval = (info->port.flags & ASYNC_HUP_NOTIFY) ?
 					-EAGAIN : -ERESTARTSYS;
 			break;
 		}
@@ -3368,7 +3360,7 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 	 	usc_get_serial_signals(info);
 		spin_unlock_irqrestore(&info->irq_spinlock,flags);
 		
- 		if (!(info->flags & ASYNC_CLOSING) &&
+ 		if (!(info->port.flags & ASYNC_CLOSING) &&
  		    (do_clocal || (info->serial_signals & SerialSignal_DCD)) ) {
  			break;
 		}
@@ -3380,24 +3372,24 @@ static int block_til_ready(struct tty_struct *tty, struct file * filp,
 		
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):block_til_ready blocking on %s count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, info->count );
+				 __FILE__,__LINE__, tty->driver->name, info->port.count );
 				 
 		schedule();
 	}
 	
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 	
 	if (extra_count)
-		info->count++;
-	info->blocked_open--;
+		info->port.count++;
+	info->port.blocked_open--;
 	
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):block_til_ready after blocking on %s count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, info->count );
+			 __FILE__,__LINE__, tty->driver->name, info->port.count );
 			 
 	if (!retval)
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		
 	return retval;
 	
@@ -3435,22 +3427,22 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 		return -ENODEV;
 	
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 		
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):mgsl_open(%s), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->count);
+			 __FILE__,__LINE__,tty->driver->name, info->port.count);
 
 	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
-		retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+		if (info->port.flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->port.close_wait);
+		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 			-EAGAIN : -ERESTARTSYS);
 		goto cleanup;
 	}
 	
-	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
 	spin_lock_irqsave(&info->netlock, flags);
 	if (info->netcount) {
@@ -3458,10 +3450,10 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->count++;
+	info->port.count++;
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->count == 1) {
+	if (info->port.count == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -3484,9 +3476,9 @@ static int mgsl_open(struct tty_struct *tty, struct file * filp)
 cleanup:			
 	if (retval) {
 		if (tty->count == 1)
-			info->tty = NULL; /* tty layer will release tty struct */
-		if(info->count)
-			info->count--;
+			info->port.tty = NULL; /* tty layer will release tty struct */
+		if(info->port.count)
+			info->port.count--;
 	}
 	
 	return retval;
@@ -4332,13 +4324,12 @@ static struct mgsl_struct* mgsl_allocate_device(void)
 	if (!info) {
 		printk("Error can't allocate device instance data\n");
 	} else {
+		tty_port_init(&info->port);
 		info->magic = MGSL_MAGIC;
 		INIT_WORK(&info->task, mgsl_bh_handler);
 		info->max_frame_size = 4096;
-		info->close_delay = 5*HZ/10;
-		info->closing_wait = 30*HZ;
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
+		info->port.close_delay = 5*HZ/10;
+		info->port.closing_wait = 30*HZ;
 		init_waitqueue_head(&info->status_event_wait_q);
 		init_waitqueue_head(&info->event_wait_q);
 		spin_lock_init(&info->irq_spinlock);
@@ -6575,7 +6566,7 @@ static bool mgsl_get_rx_frame(struct mgsl_struct *info)
 	unsigned int framesize = 0;
 	bool ReturnCode = false;
 	unsigned long flags;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	bool return_frame = false;
 	
 	/*
@@ -6640,9 +6631,8 @@ static bool mgsl_get_rx_frame(struct mgsl_struct *info)
 		framesize = 0;
 #if SYNCLINK_GENERIC_HDLC
 		{
-			struct net_device_stats *stats = hdlc_stats(info->netdev);
-			stats->rx_errors++;
-			stats->rx_frame_errors++;
+			info->netdev->stats.rx_errors++;
+			info->netdev->stats.rx_frame_errors++;
 		}
 #endif
 	} else
@@ -6774,7 +6764,7 @@ static bool mgsl_get_raw_rx_frame(struct mgsl_struct *info)
 	unsigned int framesize = 0;
 	bool ReturnCode = false;
 	unsigned long flags;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 
 	/*
  	 * current_rx_buffer points to the 1st buffer of the next available
@@ -7711,7 +7701,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	switch (encoding)
@@ -7753,7 +7743,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct mgsl_struct *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -7767,8 +7756,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 	mgsl_load_tx_dma_buffer(info, skb->data, skb->len);
 
 	/* update network statistics */
-	stats->tx_packets++;
-	stats->tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 
 	/* done with socket buffer, so free it */
 	dev_kfree_skb(skb);
@@ -7808,7 +7797,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->count != 0 || info->netcount != 0) {
+	if (info->port.count != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -7894,7 +7883,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -7984,14 +7973,13 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 static void hdlcdev_tx_timeout(struct net_device *dev)
 {
 	struct mgsl_struct *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("hdlcdev_tx_timeout(%s)\n",dev->name);
 
-	stats->tx_errors++;
-	stats->tx_aborted_errors++;
+	dev->stats.tx_errors++;
+	dev->stats.tx_aborted_errors++;
 
 	spin_lock_irqsave(&info->irq_spinlock,flags);
 	usc_stop_transmitter(info);
@@ -8024,27 +8012,27 @@ static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
 {
 	struct sk_buff *skb = dev_alloc_skb(size);
 	struct net_device *dev = info->netdev;
-	struct net_device_stats *stats = hdlc_stats(dev);
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
-		printk("hdlcdev_rx(%s)\n",dev->name);
+		printk("hdlcdev_rx(%s)\n", dev->name);
 
 	if (skb == NULL) {
-		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", dev->name);
-		stats->rx_dropped++;
+		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
+		       dev->name);
+		dev->stats.rx_dropped++;
 		return;
 	}
 
-	memcpy(skb_put(skb, size),buf,size);
+	memcpy(skb_put(skb, size), buf, size);
 
-	skb->protocol = hdlc_type_trans(skb, info->netdev);
+	skb->protocol = hdlc_type_trans(skb, dev);
 
-	stats->rx_packets++;
-	stats->rx_bytes += size;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
 
-	info->netdev->last_rx = jiffies;
+	dev->last_rx = jiffies;
 }
 
 /**
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index 55c1653be00c..2c3e43bb2cc9 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -244,11 +244,11 @@ struct _input_signal_events {
  */
 struct slgt_info {
 	void *if_ptr;		/* General purpose pointer (used by SPPP) */
+	struct tty_port port;
 
 	struct slgt_info *next_device;	/* device list link */
 
 	int magic;
-	int flags;
 
 	char device_name[25];
 	struct pci_dev *pdev;
@@ -260,23 +260,15 @@ struct slgt_info {
 	/* array of pointers to port contexts on this adapter */
 	struct slgt_info *port_array[SLGT_MAX_PORTS];
 
-	int			count;		/* count of opens */
 	int			line;		/* tty line instance number */
-	unsigned short		close_delay;
-	unsigned short		closing_wait;	/* time to wait before closing */
 
 	struct mgsl_icount	icount;
 
-	struct tty_struct 	*tty;
 	int			timeout;
 	int			x_char;		/* xon/xoff character */
-	int			blocked_open;	/* # of blocked opens */
 	unsigned int		read_status_mask;
 	unsigned int 		ignore_status_mask;
 
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
-
 	wait_queue_head_t	status_event_wait_q;
 	wait_queue_head_t	event_wait_q;
 	struct timer_list	tx_timer;
@@ -641,8 +633,8 @@ static void ldisc_receive_buf(struct tty_struct *tty,
 		return;
 	ld = tty_ldisc_ref(tty);
 	if (ld) {
-		if (ld->receive_buf)
-			ld->receive_buf(tty, data, flags, count);
+		if (ld->ops->receive_buf)
+			ld->ops->receive_buf(tty, data, flags, count);
 		tty_ldisc_deref(ld);
 	}
 }
@@ -672,20 +664,20 @@ static int open(struct tty_struct *tty, struct file *filp)
 	}
 
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 
-	DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->count));
+	DBGINFO(("%s open, old ref count = %d\n", info->device_name, info->port.count));
 
 	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
-		retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+		if (info->port.flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->port.close_wait);
+		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 			-EAGAIN : -ERESTARTSYS);
 		goto cleanup;
 	}
 
-	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
 	spin_lock_irqsave(&info->netlock, flags);
 	if (info->netcount) {
@@ -693,10 +685,10 @@ static int open(struct tty_struct *tty, struct file *filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->count++;
+	info->port.count++;
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->count == 1) {
+	if (info->port.count == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -714,9 +706,9 @@ static int open(struct tty_struct *tty, struct file *filp)
 cleanup:
 	if (retval) {
 		if (tty->count == 1)
-			info->tty = NULL; /* tty layer will release tty struct */
-		if(info->count)
-			info->count--;
+			info->port.tty = NULL; /* tty layer will release tty struct */
+		if(info->port.count)
+			info->port.count--;
 	}
 
 	DBGINFO(("%s open rc=%d\n", info->device_name, retval));
@@ -729,32 +721,32 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	if (sanity_check(info, tty->name, "close"))
 		return;
-	DBGINFO(("%s close entry, count=%d\n", info->device_name, info->count));
+	DBGINFO(("%s close entry, count=%d\n", info->device_name, info->port.count));
 
-	if (!info->count)
+	if (!info->port.count)
 		return;
 
 	if (tty_hung_up_p(filp))
 		goto cleanup;
 
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * tty->count is 1 and the tty structure will be freed.
-		 * info->count should be one in this case.
+		 * info->port.count should be one in this case.
 		 * if it's not, correct it so that the port is shutdown.
 		 */
 		DBGERR(("%s close: bad refcount; tty->count=1, "
-		       "info->count=%d\n", info->device_name, info->count));
-		info->count = 1;
+		       "info->port.count=%d\n", info->device_name, info->port.count));
+		info->port.count = 1;
 	}
 
-	info->count--;
+	info->port.count--;
 
 	/* if at least one open remaining, leave hardware active */
-	if (info->count)
+	if (info->port.count)
 		goto cleanup;
 
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 
 	/* set tty->closing to notify line discipline to
 	 * only process XON/XOFF characters. Only the N_TTY
@@ -764,12 +756,12 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	/* wait for transmit data to clear all layers */
 
-	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) {
+	if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) {
 		DBGINFO(("%s call tty_wait_until_sent\n", info->device_name));
-		tty_wait_until_sent(tty, info->closing_wait);
+		tty_wait_until_sent(tty, info->port.closing_wait);
 	}
 
- 	if (info->flags & ASYNC_INITIALIZED)
+ 	if (info->port.flags & ASYNC_INITIALIZED)
  		wait_until_sent(tty, info->timeout);
 	flush_buffer(tty);
 	tty_ldisc_flush(tty);
@@ -777,21 +769,21 @@ static void close(struct tty_struct *tty, struct file *filp)
 	shutdown(info);
 
 	tty->closing = 0;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
-	if (info->blocked_open) {
-		if (info->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(info->close_delay));
+	if (info->port.blocked_open) {
+		if (info->port.close_delay) {
+			msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
 
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
 
-	wake_up_interruptible(&info->close_wait);
+	wake_up_interruptible(&info->port.close_wait);
 
 cleanup:
-	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->count));
+	DBGINFO(("%s close exit, count=%d\n", tty->driver->name, info->port.count));
 }
 
 static void hangup(struct tty_struct *tty)
@@ -805,11 +797,11 @@ static void hangup(struct tty_struct *tty)
 	flush_buffer(tty);
 	shutdown(info);
 
-	info->count = 0;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
+	info->port.count = 0;
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	info->port.tty = NULL;
 
-	wake_up_interruptible(&info->open_wait);
+	wake_up_interruptible(&info->port.open_wait);
 }
 
 static void set_termios(struct tty_struct *tty, struct ktermios *old_termios)
@@ -959,7 +951,7 @@ static void wait_until_sent(struct tty_struct *tty, int timeout)
 	if (sanity_check(info, tty->name, "wait_until_sent"))
 		return;
 	DBGINFO(("%s wait_until_sent entry\n", info->device_name));
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		goto exit;
 
 	orig_jiffies = jiffies;
@@ -1500,7 +1492,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	DBGINFO(("%s hdlcdev_attach\n", info->device_name));
@@ -1544,7 +1536,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	struct slgt_info *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	DBGINFO(("%s hdlc_xmit\n", dev->name));
@@ -1557,8 +1548,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 	tx_load(info, skb->data, skb->len);
 
 	/* update network statistics */
-	stats->tx_packets++;
-	stats->tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 
 	/* done with socket buffer, so free it */
 	dev_kfree_skb(skb);
@@ -1600,7 +1591,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->count != 0 || info->netcount != 0) {
+	if (info->port.count != 0 || info->netcount != 0) {
 		DBGINFO(("%s hdlc_open busy\n", dev->name));
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1685,7 +1676,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 	DBGINFO(("%s hdlcdev_ioctl\n", dev->name));
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -1775,13 +1766,12 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 static void hdlcdev_tx_timeout(struct net_device *dev)
 {
 	struct slgt_info *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	DBGINFO(("%s hdlcdev_tx_timeout\n", dev->name));
 
-	stats->tx_errors++;
-	stats->tx_aborted_errors++;
+	dev->stats.tx_errors++;
+	dev->stats.tx_aborted_errors++;
 
 	spin_lock_irqsave(&info->lock,flags);
 	tx_stop(info);
@@ -1814,26 +1804,25 @@ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
 {
 	struct sk_buff *skb = dev_alloc_skb(size);
 	struct net_device *dev = info->netdev;
-	struct net_device_stats *stats = hdlc_stats(dev);
 
 	DBGINFO(("%s hdlcdev_rx\n", dev->name));
 
 	if (skb == NULL) {
 		DBGERR(("%s: can't alloc skb, drop packet\n", dev->name));
-		stats->rx_dropped++;
+		dev->stats.rx_dropped++;
 		return;
 	}
 
-	memcpy(skb_put(skb, size),buf,size);
+	memcpy(skb_put(skb, size), buf, size);
 
-	skb->protocol = hdlc_type_trans(skb, info->netdev);
+	skb->protocol = hdlc_type_trans(skb, dev);
 
-	stats->rx_packets++;
-	stats->rx_bytes += size;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
 
-	info->netdev->last_rx = jiffies;
+	dev->last_rx = jiffies;
 }
 
 /**
@@ -1906,7 +1895,7 @@ static void hdlcdev_exit(struct slgt_info *info)
  */
 static void rx_async(struct slgt_info *info)
 {
- 	struct tty_struct *tty = info->tty;
+ 	struct tty_struct *tty = info->port.tty;
  	struct mgsl_icount *icount = &info->icount;
 	unsigned int start, end;
 	unsigned char *p;
@@ -2057,7 +2046,7 @@ static void bh_handler(struct work_struct *work)
 
 static void bh_transmit(struct slgt_info *info)
 {
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 
 	DBGBH(("%s bh_transmit\n", info->device_name));
 	if (tty)
@@ -2103,17 +2092,17 @@ static void cts_change(struct slgt_info *info, unsigned short status)
 	wake_up_interruptible(&info->event_wait_q);
 	info->pending_bh |= BH_STATUS;
 
-	if (info->flags & ASYNC_CTS_FLOW) {
-		if (info->tty) {
-			if (info->tty->hw_stopped) {
+	if (info->port.flags & ASYNC_CTS_FLOW) {
+		if (info->port.tty) {
+			if (info->port.tty->hw_stopped) {
 				if (info->signals & SerialSignal_CTS) {
-		 			info->tty->hw_stopped = 0;
+		 			info->port.tty->hw_stopped = 0;
 					info->pending_bh |= BH_TRANSMIT;
 					return;
 				}
 			} else {
 				if (!(info->signals & SerialSignal_CTS))
-		 			info->tty->hw_stopped = 1;
+		 			info->port.tty->hw_stopped = 1;
 			}
 		}
 	}
@@ -2146,12 +2135,12 @@ static void dcd_change(struct slgt_info *info, unsigned short status)
 	wake_up_interruptible(&info->event_wait_q);
 	info->pending_bh |= BH_STATUS;
 
-	if (info->flags & ASYNC_CHECK_CD) {
+	if (info->port.flags & ASYNC_CHECK_CD) {
 		if (info->signals & SerialSignal_DCD)
-			wake_up_interruptible(&info->open_wait);
+			wake_up_interruptible(&info->port.open_wait);
 		else {
-			if (info->tty)
-				tty_hangup(info->tty);
+			if (info->port.tty)
+				tty_hangup(info->port.tty);
 		}
 	}
 }
@@ -2194,12 +2183,12 @@ static void isr_serial(struct slgt_info *info)
 		if ((status & IRQ_RXBREAK) && (status & RXBREAK)) {
 			info->icount.brk++;
 			/* process break detection if tty control allows */
-			if (info->tty) {
+			if (info->port.tty) {
 				if (!(status & info->ignore_status_mask)) {
 					if (info->read_status_mask & MASK_BREAK) {
-						tty_insert_flip_char(info->tty, 0, TTY_BREAK);
-						if (info->flags & ASYNC_SAK)
-							do_SAK(info->tty);
+						tty_insert_flip_char(info->port.tty, 0, TTY_BREAK);
+						if (info->port.flags & ASYNC_SAK)
+							do_SAK(info->port.tty);
 					}
 				}
 			}
@@ -2319,7 +2308,7 @@ static void isr_txeom(struct slgt_info *info, unsigned short status)
 		else
 #endif
 		{
-			if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+			if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
 				tx_stop(info);
 				return;
 			}
@@ -2395,7 +2384,7 @@ static irqreturn_t slgt_interrupt(int dummy, void *dev_id)
 	for(i=0; i < info->port_count ; i++) {
 		struct slgt_info *port = info->port_array[i];
 
-		if (port && (port->count || port->netcount) &&
+		if (port && (port->port.count || port->netcount) &&
 		    port->pending_bh && !port->bh_running &&
 		    !port->bh_requested) {
 			DBGISR(("%s bh queued\n", port->device_name));
@@ -2414,7 +2403,7 @@ static int startup(struct slgt_info *info)
 {
 	DBGINFO(("%s startup\n", info->device_name));
 
-	if (info->flags & ASYNC_INITIALIZED)
+	if (info->port.flags & ASYNC_INITIALIZED)
 		return 0;
 
 	if (!info->tx_buf) {
@@ -2432,10 +2421,10 @@ static int startup(struct slgt_info *info)
 	/* program hardware for current parameters */
 	change_params(info);
 
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags |= ASYNC_INITIALIZED;
+	info->port.flags |= ASYNC_INITIALIZED;
 
 	return 0;
 }
@@ -2447,7 +2436,7 @@ static void shutdown(struct slgt_info *info)
 {
 	unsigned long flags;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	DBGINFO(("%s shutdown\n", info->device_name));
@@ -2470,7 +2459,7 @@ static void shutdown(struct slgt_info *info)
 
 	slgt_irq_off(info, IRQ_ALL | IRQ_MASTER);
 
- 	if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
  		info->signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		set_signals(info);
 	}
@@ -2479,10 +2468,10 @@ static void shutdown(struct slgt_info *info)
 
 	spin_unlock_irqrestore(&info->lock,flags);
 
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags &= ~ASYNC_INITIALIZED;
+	info->port.flags &= ~ASYNC_INITIALIZED;
 }
 
 static void program_hw(struct slgt_info *info)
@@ -2511,7 +2500,7 @@ static void program_hw(struct slgt_info *info)
 	get_signals(info);
 
 	if (info->netcount ||
-	    (info->tty && info->tty->termios->c_cflag & CREAD))
+	    (info->port.tty && info->port.tty->termios->c_cflag & CREAD))
 		rx_start(info);
 
 	spin_unlock_irqrestore(&info->lock,flags);
@@ -2525,11 +2514,11 @@ static void change_params(struct slgt_info *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return;
 	DBGINFO(("%s change_params\n", info->device_name));
 
-	cflag = info->tty->termios->c_cflag;
+	cflag = info->port.tty->termios->c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -2561,7 +2550,7 @@ static void change_params(struct slgt_info *info)
 	bits_per_char = info->params.data_bits +
 			info->params.stop_bits + 1;
 
-	info->params.data_rate = tty_get_baud_rate(info->tty);
+	info->params.data_rate = tty_get_baud_rate(info->port.tty);
 
 	if (info->params.data_rate) {
 		info->timeout = (32*HZ*bits_per_char) /
@@ -2570,30 +2559,30 @@ static void change_params(struct slgt_info *info)
 	info->timeout += HZ/50;		/* Add .02 seconds of slop */
 
 	if (cflag & CRTSCTS)
-		info->flags |= ASYNC_CTS_FLOW;
+		info->port.flags |= ASYNC_CTS_FLOW;
 	else
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 
 	if (cflag & CLOCAL)
-		info->flags &= ~ASYNC_CHECK_CD;
+		info->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		info->flags |= ASYNC_CHECK_CD;
+		info->port.flags |= ASYNC_CHECK_CD;
 
 	/* process tty input control flags */
 
 	info->read_status_mask = IRQ_RXOVER;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask |= MASK_PARITY | MASK_FRAMING;
- 	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
  		info->read_status_mask |= MASK_BREAK;
-	if (I_IGNPAR(info->tty))
+	if (I_IGNPAR(info->port.tty))
 		info->ignore_status_mask |= MASK_PARITY | MASK_FRAMING;
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask |= MASK_BREAK;
 		/* If ignoring parity and break indicators, ignore
 		 * overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty))
+		if (I_IGNPAR(info->port.tty))
 			info->ignore_status_mask |= MASK_OVERRUN;
 	}
 
@@ -3144,7 +3133,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
 		/* nonblock mode is set or port is not enabled */
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -3153,21 +3142,21 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	/* Wait for carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
+	 * this loop, info->port.count is dropped by one, so that
 	 * close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 
 	spin_lock_irqsave(&info->lock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		info->count--;
+		info->port.count--;
 	}
 	spin_unlock_irqrestore(&info->lock, flags);
-	info->blocked_open++;
+	info->port.blocked_open++;
 
 	while (1) {
 		if ((tty->termios->c_cflag & CBAUD)) {
@@ -3179,8 +3168,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 		set_current_state(TASK_INTERRUPTIBLE);
 
-		if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){
-			retval = (info->flags & ASYNC_HUP_NOTIFY) ?
+		if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){
+			retval = (info->port.flags & ASYNC_HUP_NOTIFY) ?
 					-EAGAIN : -ERESTARTSYS;
 			break;
 		}
@@ -3189,7 +3178,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 	get_signals(info);
 		spin_unlock_irqrestore(&info->lock,flags);
 
- 		if (!(info->flags & ASYNC_CLOSING) &&
+ 		if (!(info->port.flags & ASYNC_CLOSING) &&
  		    (do_clocal || (info->signals & SerialSignal_DCD)) ) {
  			break;
 		}
@@ -3204,14 +3193,14 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	}
 
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 
 	if (extra_count)
-		info->count++;
-	info->blocked_open--;
+		info->port.count++;
+	info->port.blocked_open--;
 
 	if (!retval)
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 
 	DBGINFO(("%s block_til_ready ready, rc=%d\n", tty->driver->name, retval));
 	return retval;
@@ -3454,14 +3443,13 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev
 		DBGERR(("%s device alloc failed adapter=%d port=%d\n",
 			driver_name, adapter_num, port_num));
 	} else {
+		tty_port_init(&info->port);
 		info->magic = MGSL_MAGIC;
 		INIT_WORK(&info->task, bh_handler);
 		info->max_frame_size = 4096;
 		info->raw_rx_size = DMABUFSIZE;
-		info->close_delay = 5*HZ/10;
-		info->closing_wait = 30*HZ;
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
+		info->port.close_delay = 5*HZ/10;
+		info->port.closing_wait = 30*HZ;
 		init_waitqueue_head(&info->status_event_wait_q);
 		init_waitqueue_head(&info->event_wait_q);
 		spin_lock_init(&info->netlock);
@@ -4505,7 +4493,7 @@ static bool rx_get_frame(struct slgt_info *info)
 	unsigned short status;
 	unsigned int framesize = 0;
 	unsigned long flags;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	unsigned char addr_field = 0xff;
 	unsigned int crc_size = 0;
 
@@ -4577,9 +4565,8 @@ check_again:
 
 #if SYNCLINK_GENERIC_HDLC
 	if (framesize == 0) {
-		struct net_device_stats *stats = hdlc_stats(info->netdev);
-		stats->rx_errors++;
-		stats->rx_frame_errors++;
+		info->netdev->stats.rx_errors++;
+		info->netdev->stats.rx_frame_errors++;
 	}
 #endif
 
@@ -4656,7 +4643,7 @@ static bool rx_get_buf(struct slgt_info *info)
 	DBGDATA(info, info->rbufs[i].buf, count, "rx");
 	DBGINFO(("rx_get_buf size=%d\n", count));
 	if (count)
-		ldisc_receive_buf(info->tty, info->rbufs[i].buf,
+		ldisc_receive_buf(info->port.tty, info->rbufs[i].buf,
 				  info->flag_buf, count);
 	free_rbufs(info, i, i);
 	return true;
@@ -4765,11 +4752,11 @@ static int irq_test(struct slgt_info *info)
 {
 	unsigned long timeout;
 	unsigned long flags;
-	struct tty_struct *oldtty = info->tty;
+	struct tty_struct *oldtty = info->port.tty;
 	u32 speed = info->params.data_rate;
 
 	info->params.data_rate = 921600;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
 	spin_lock_irqsave(&info->lock, flags);
 	async_mode(info);
@@ -4797,7 +4784,7 @@ static int irq_test(struct slgt_info *info)
 	spin_unlock_irqrestore(&info->lock,flags);
 
 	info->params.data_rate = speed;
-	info->tty = oldtty;
+	info->port.tty = oldtty;
 
 	info->init_error = info->irq_occurred ? 0 : DiagStatus_IrqFailure;
 	return info->irq_occurred ? 0 : -ENODEV;
@@ -4837,7 +4824,7 @@ static int loopback_test(struct slgt_info *info)
 	int rc = -ENODEV;
 	unsigned long flags;
 
-	struct tty_struct *oldtty = info->tty;
+	struct tty_struct *oldtty = info->port.tty;
 	MGSL_PARAMS params;
 
 	memcpy(&params, &info->params, sizeof(params));
@@ -4845,7 +4832,7 @@ static int loopback_test(struct slgt_info *info)
 	info->params.mode = MGSL_MODE_ASYNC;
 	info->params.data_rate = 921600;
 	info->params.loopback = 1;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
 	/* build and send transmit frame */
 	for (count = 0; count < TESTFRAMESIZE; ++count)
@@ -4883,7 +4870,7 @@ static int loopback_test(struct slgt_info *info)
 	spin_unlock_irqrestore(&info->lock,flags);
 
 	memcpy(&info->params, &params, sizeof(info->params));
-	info->tty = oldtty;
+	info->port.tty = oldtty;
 
 	info->init_error = rc ? DiagStatus_DmaFailure : 0;
 	return rc;
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index bec54866e0bb..5768c4136342 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -151,18 +151,15 @@ struct	_input_signal_events {
 typedef struct _synclinkmp_info {
 	void *if_ptr;				/* General purpose pointer (used by SPPP) */
 	int			magic;
-	int			flags;
-	int			count;		/* count of opens */
+	struct tty_port		port;
 	int			line;
 	unsigned short		close_delay;
 	unsigned short		closing_wait;	/* time to wait before closing */
 
 	struct mgsl_icount	icount;
 
-	struct tty_struct 	*tty;
 	int			timeout;
 	int			x_char;		/* xon/xoff character */
-	int			blocked_open;	/* # of blocked opens */
 	u16			read_status_mask1;  /* break detection (SR1 indications) */
 	u16			read_status_mask2;  /* parity/framing/overun (SR2 indications) */
 	unsigned char 		ignore_status_mask1;  /* break detection (SR1 indications) */
@@ -172,9 +169,6 @@ typedef struct _synclinkmp_info {
 	int			tx_get;
 	int			tx_count;
 
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
-
 	wait_queue_head_t	status_event_wait_q;
 	wait_queue_head_t	event_wait_q;
 	struct timer_list	tx_timer;	/* HDLC transmit timeout timer */
@@ -462,13 +456,13 @@ static int synclinkmp_device_count = 0;
  * .text section address and breakpoint on module load.
  * This is useful for use with gdb and add-symbol-file command.
  */
-static int break_on_load=0;
+static int break_on_load = 0;
 
 /*
  * Driver major number, defaults to zero to get auto
  * assigned major number. May be forced as module parameter.
  */
-static int ttymajor=0;
+static int ttymajor = 0;
 
 /*
  * Array of user specified options for ISA adapters.
@@ -712,8 +706,8 @@ static void ldisc_receive_buf(struct tty_struct *tty,
 		return;
 	ld = tty_ldisc_ref(tty);
 	if (ld) {
-		if (ld->receive_buf)
-			ld->receive_buf(tty, data, flags, count);
+		if (ld->ops->receive_buf)
+			ld->ops->receive_buf(tty, data, flags, count);
 		tty_ldisc_deref(ld);
 	}
 }
@@ -747,22 +741,22 @@ static int open(struct tty_struct *tty, struct file *filp)
 	}
 
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s open(), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->count);
+			 __FILE__,__LINE__,tty->driver->name, info->port.count);
 
 	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
-		retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+		if (info->port.flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->port.close_wait);
+		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 			-EAGAIN : -ERESTARTSYS);
 		goto cleanup;
 	}
 
-	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
 	spin_lock_irqsave(&info->netlock, flags);
 	if (info->netcount) {
@@ -770,10 +764,10 @@ static int open(struct tty_struct *tty, struct file *filp)
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->count++;
+	info->port.count++;
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->count == 1) {
+	if (info->port.count == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -796,9 +790,9 @@ static int open(struct tty_struct *tty, struct file *filp)
 cleanup:
 	if (retval) {
 		if (tty->count == 1)
-			info->tty = NULL; /* tty layer will release tty struct */
-		if(info->count)
-			info->count--;
+			info->port.tty = NULL; /* tty layer will release tty struct */
+		if(info->port.count)
+			info->port.count--;
 	}
 
 	return retval;
@@ -816,33 +810,33 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->count);
+			 __FILE__,__LINE__, info->device_name, info->port.count);
 
-	if (!info->count)
+	if (!info->port.count)
 		return;
 
 	if (tty_hung_up_p(filp))
 		goto cleanup;
 
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * tty->count is 1 and the tty structure will be freed.
-		 * info->count should be one in this case.
+		 * info->port.count should be one in this case.
 		 * if it's not, correct it so that the port is shutdown.
 		 */
 		printk("%s(%d):%s close: bad refcount; tty->count is 1, "
-		       "info->count is %d\n",
-			 __FILE__,__LINE__, info->device_name, info->count);
-		info->count = 1;
+		       "info->port.count is %d\n",
+			 __FILE__,__LINE__, info->device_name, info->port.count);
+		info->port.count = 1;
 	}
 
-	info->count--;
+	info->port.count--;
 
 	/* if at least one open remaining, leave hardware active */
-	if (info->count)
+	if (info->port.count)
 		goto cleanup;
 
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 
 	/* set tty->closing to notify line discipline to
 	 * only process XON/XOFF characters. Only the N_TTY
@@ -852,14 +846,14 @@ static void close(struct tty_struct *tty, struct file *filp)
 
 	/* wait for transmit data to clear all layers */
 
-	if (info->closing_wait != ASYNC_CLOSING_WAIT_NONE) {
+	if (info->port.closing_wait != ASYNC_CLOSING_WAIT_NONE) {
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):%s close() calling tty_wait_until_sent\n",
 				 __FILE__,__LINE__, info->device_name );
-		tty_wait_until_sent(tty, info->closing_wait);
+		tty_wait_until_sent(tty, info->port.closing_wait);
 	}
 
- 	if (info->flags & ASYNC_INITIALIZED)
+ 	if (info->port.flags & ASYNC_INITIALIZED)
  		wait_until_sent(tty, info->timeout);
 
 	flush_buffer(tty);
@@ -869,23 +863,23 @@ static void close(struct tty_struct *tty, struct file *filp)
 	shutdown(info);
 
 	tty->closing = 0;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
-	if (info->blocked_open) {
-		if (info->close_delay) {
-			msleep_interruptible(jiffies_to_msecs(info->close_delay));
+	if (info->port.blocked_open) {
+		if (info->port.close_delay) {
+			msleep_interruptible(jiffies_to_msecs(info->port.close_delay));
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
 
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
 
-	wake_up_interruptible(&info->close_wait);
+	wake_up_interruptible(&info->port.close_wait);
 
 cleanup:
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->count);
+			tty->driver->name, info->port.count);
 }
 
 /* Called by tty_hangup() when a hangup is signaled.
@@ -905,11 +899,11 @@ static void hangup(struct tty_struct *tty)
 	flush_buffer(tty);
 	shutdown(info);
 
-	info->count = 0;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
+	info->port.count = 0;
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	info->port.tty = NULL;
 
-	wake_up_interruptible(&info->open_wait);
+	wake_up_interruptible(&info->port.open_wait);
 }
 
 /* Set new termios settings
@@ -1123,7 +1117,7 @@ static void wait_until_sent(struct tty_struct *tty, int timeout)
 
 	lock_kernel();
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		goto exit;
 
 	orig_jiffies = jiffies;
@@ -1636,7 +1630,7 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	switch (encoding)
@@ -1678,7 +1672,6 @@ static int hdlcdev_attach(struct net_device *dev, unsigned short encoding,
 static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 {
 	SLMP_INFO *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -1692,8 +1685,8 @@ static int hdlcdev_xmit(struct sk_buff *skb, struct net_device *dev)
 	tx_load_dma_buffer(info, skb->data, skb->len);
 
 	/* update network statistics */
-	stats->tx_packets++;
-	stats->tx_bytes += skb->len;
+	dev->stats.tx_packets++;
+	dev->stats.tx_bytes += skb->len;
 
 	/* done with socket buffer, so free it */
 	dev_kfree_skb(skb);
@@ -1733,7 +1726,7 @@ static int hdlcdev_open(struct net_device *dev)
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->count != 0 || info->netcount != 0) {
+	if (info->port.count != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1819,7 +1812,7 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -1909,14 +1902,13 @@ static int hdlcdev_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd)
 static void hdlcdev_tx_timeout(struct net_device *dev)
 {
 	SLMP_INFO *info = dev_to_port(dev);
-	struct net_device_stats *stats = hdlc_stats(dev);
 	unsigned long flags;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("hdlcdev_tx_timeout(%s)\n",dev->name);
 
-	stats->tx_errors++;
-	stats->tx_aborted_errors++;
+	dev->stats.tx_errors++;
+	dev->stats.tx_aborted_errors++;
 
 	spin_lock_irqsave(&info->lock,flags);
 	tx_stop(info);
@@ -1949,27 +1941,27 @@ static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
 {
 	struct sk_buff *skb = dev_alloc_skb(size);
 	struct net_device *dev = info->netdev;
-	struct net_device_stats *stats = hdlc_stats(dev);
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("hdlcdev_rx(%s)\n",dev->name);
 
 	if (skb == NULL) {
-		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n", dev->name);
-		stats->rx_dropped++;
+		printk(KERN_NOTICE "%s: can't alloc skb, dropping packet\n",
+		       dev->name);
+		dev->stats.rx_dropped++;
 		return;
 	}
 
-	memcpy(skb_put(skb, size),buf,size);
+	memcpy(skb_put(skb, size), buf, size);
 
-	skb->protocol = hdlc_type_trans(skb, info->netdev);
+	skb->protocol = hdlc_type_trans(skb, dev);
 
-	stats->rx_packets++;
-	stats->rx_bytes += size;
+	dev->stats.rx_packets++;
+	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
 
-	info->netdev->last_rx = jiffies;
+	dev->last_rx = jiffies;
 }
 
 /**
@@ -2128,7 +2120,7 @@ static void bh_receive(SLMP_INFO *info)
 
 static void bh_transmit(SLMP_INFO *info)
 {
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 
 	if ( debug_level >= DEBUG_LEVEL_BH )
 		printk( "%s(%d):%s bh_transmit() entry\n",
@@ -2178,7 +2170,7 @@ static void isr_timer(SLMP_INFO * info)
 
 static void isr_rxint(SLMP_INFO * info)
 {
- 	struct tty_struct *tty = info->tty;
+ 	struct tty_struct *tty = info->port.tty;
  	struct	mgsl_icount *icount = &info->icount;
 	unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
 	unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
@@ -2205,7 +2197,7 @@ static void isr_rxint(SLMP_INFO * info)
 				if (!(status & info->ignore_status_mask1)) {
 					if (info->read_status_mask1 & BRKD) {
 						tty_insert_flip_char(tty, 0, TTY_BREAK);
-						if (info->flags & ASYNC_SAK)
+						if (info->port.flags & ASYNC_SAK)
 							do_SAK(tty);
 					}
 				}
@@ -2239,7 +2231,7 @@ static void isr_rxrdy(SLMP_INFO * info)
 {
 	u16 status;
 	unsigned char DataByte;
- 	struct tty_struct *tty = info->tty;
+ 	struct tty_struct *tty = info->port.tty;
  	struct	mgsl_icount *icount = &info->icount;
 
 	if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -2352,7 +2344,7 @@ static void isr_txeom(SLMP_INFO * info, unsigned char status)
 		else
 #endif
 		{
-			if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+			if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
 				tx_stop(info);
 				return;
 			}
@@ -2407,7 +2399,7 @@ static void isr_txrdy(SLMP_INFO * info)
 		return;
 	}
 
-	if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+	if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
 		tx_stop(info);
 		return;
 	}
@@ -2554,29 +2546,29 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
 		wake_up_interruptible(&info->status_event_wait_q);
 		wake_up_interruptible(&info->event_wait_q);
 
-		if ( (info->flags & ASYNC_CHECK_CD) &&
+		if ( (info->port.flags & ASYNC_CHECK_CD) &&
 		     (status & MISCSTATUS_DCD_LATCHED) ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
 				printk("%s CD now %s...", info->device_name,
 				       (status & SerialSignal_DCD) ? "on" : "off");
 			if (status & SerialSignal_DCD)
-				wake_up_interruptible(&info->open_wait);
+				wake_up_interruptible(&info->port.open_wait);
 			else {
 				if ( debug_level >= DEBUG_LEVEL_ISR )
 					printk("doing serial hangup...");
-				if (info->tty)
-					tty_hangup(info->tty);
+				if (info->port.tty)
+					tty_hangup(info->port.tty);
 			}
 		}
 
-		if ( (info->flags & ASYNC_CTS_FLOW) &&
+		if ( (info->port.flags & ASYNC_CTS_FLOW) &&
 		     (status & MISCSTATUS_CTS_LATCHED) ) {
-			if ( info->tty ) {
-				if (info->tty->hw_stopped) {
+			if ( info->port.tty ) {
+				if (info->port.tty->hw_stopped) {
 					if (status & SerialSignal_CTS) {
 						if ( debug_level >= DEBUG_LEVEL_ISR )
 							printk("CTS tx start...");
-			 			info->tty->hw_stopped = 0;
+			 			info->port.tty->hw_stopped = 0;
 						tx_start(info);
 						info->pending_bh |= BH_TRANSMIT;
 						return;
@@ -2585,7 +2577,7 @@ static void isr_io_pin( SLMP_INFO *info, u16 status )
 					if (!(status & SerialSignal_CTS)) {
 						if ( debug_level >= DEBUG_LEVEL_ISR )
 							printk("CTS tx stop...");
-			 			info->tty->hw_stopped = 1;
+			 			info->port.tty->hw_stopped = 1;
 						tx_stop(info);
 					}
 				}
@@ -2701,7 +2693,7 @@ static irqreturn_t synclinkmp_interrupt(int dummy, void *dev_id)
 		 * do not request bottom half processing if the
 		 * device is not open in a normal mode.
 		 */
-		if ( port && (port->count || port->netcount) &&
+		if ( port && (port->port.count || port->netcount) &&
 		     port->pending_bh && !port->bh_running &&
 		     !port->bh_requested ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -2727,7 +2719,7 @@ static int startup(SLMP_INFO * info)
 	if ( debug_level >= DEBUG_LEVEL_INFO )
 		printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);
 
-	if (info->flags & ASYNC_INITIALIZED)
+	if (info->port.flags & ASYNC_INITIALIZED)
 		return 0;
 
 	if (!info->tx_buf) {
@@ -2750,10 +2742,10 @@ static int startup(SLMP_INFO * info)
 
 	mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
 
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags |= ASYNC_INITIALIZED;
+	info->port.flags |= ASYNC_INITIALIZED;
 
 	return 0;
 }
@@ -2764,7 +2756,7 @@ static void shutdown(SLMP_INFO * info)
 {
 	unsigned long flags;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -2786,17 +2778,17 @@ static void shutdown(SLMP_INFO * info)
 
 	reset_port(info);
 
- 	if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		set_signals(info);
 	}
 
 	spin_unlock_irqrestore(&info->lock,flags);
 
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags &= ~ASYNC_INITIALIZED;
+	info->port.flags &= ~ASYNC_INITIALIZED;
 }
 
 static void program_hw(SLMP_INFO *info)
@@ -2827,7 +2819,7 @@ static void program_hw(SLMP_INFO *info)
 
 	get_signals(info);
 
-	if (info->netcount || (info->tty && info->tty->termios->c_cflag & CREAD) )
+	if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
 		rx_start(info);
 
 	spin_unlock_irqrestore(&info->lock,flags);
@@ -2840,14 +2832,14 @@ static void change_params(SLMP_INFO *info)
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s change_params()\n",
 			 __FILE__,__LINE__, info->device_name );
 
-	cflag = info->tty->termios->c_cflag;
+	cflag = info->port.tty->termios->c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -2895,7 +2887,7 @@ static void change_params(SLMP_INFO *info)
 	 * current data rate.
 	 */
 	if (info->params.data_rate <= 460800) {
-		info->params.data_rate = tty_get_baud_rate(info->tty);
+		info->params.data_rate = tty_get_baud_rate(info->port.tty);
 	}
 
 	if ( info->params.data_rate ) {
@@ -2905,30 +2897,30 @@ static void change_params(SLMP_INFO *info)
 	info->timeout += HZ/50;		/* Add .02 seconds of slop */
 
 	if (cflag & CRTSCTS)
-		info->flags |= ASYNC_CTS_FLOW;
+		info->port.flags |= ASYNC_CTS_FLOW;
 	else
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 
 	if (cflag & CLOCAL)
-		info->flags &= ~ASYNC_CHECK_CD;
+		info->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		info->flags |= ASYNC_CHECK_CD;
+		info->port.flags |= ASYNC_CHECK_CD;
 
 	/* process tty input control flags */
 
 	info->read_status_mask2 = OVRN;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask2 |= PE | FRME;
- 	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
  		info->read_status_mask1 |= BRKD;
-	if (I_IGNPAR(info->tty))
+	if (I_IGNPAR(info->port.tty))
 		info->ignore_status_mask2 |= PE | FRME;
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask1 |= BRKD;
 		/* If ignoring parity and break indicators, ignore
 		 * overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty))
+		if (I_IGNPAR(info->port.tty))
 			info->ignore_status_mask2 |= OVRN;
 	}
 
@@ -3348,7 +3340,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
 		/* nonblock mode is set or port is not enabled */
 		/* just verify that callout device is not active */
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -3357,25 +3349,25 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 	/* Wait for carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
+	 * this loop, info->port.count is dropped by one, so that
 	 * close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, info->count );
+			 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 	spin_lock_irqsave(&info->lock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		info->count--;
+		info->port.count--;
 	}
 	spin_unlock_irqrestore(&info->lock, flags);
-	info->blocked_open++;
+	info->port.blocked_open++;
 
 	while (1) {
 		if ((tty->termios->c_cflag & CBAUD)) {
@@ -3387,8 +3379,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 		set_current_state(TASK_INTERRUPTIBLE);
 
-		if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){
-			retval = (info->flags & ASYNC_HUP_NOTIFY) ?
+		if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){
+			retval = (info->port.flags & ASYNC_HUP_NOTIFY) ?
 					-EAGAIN : -ERESTARTSYS;
 			break;
 		}
@@ -3397,7 +3389,7 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 	 	get_signals(info);
 		spin_unlock_irqrestore(&info->lock,flags);
 
- 		if (!(info->flags & ASYNC_CLOSING) &&
+ 		if (!(info->port.flags & ASYNC_CLOSING) &&
  		    (do_clocal || (info->serial_signals & SerialSignal_DCD)) ) {
  			break;
 		}
@@ -3409,24 +3401,24 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp,
 
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):%s block_til_ready() count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, info->count );
+				 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 		schedule();
 	}
 
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 
 	if (extra_count)
-		info->count++;
-	info->blocked_open--;
+		info->port.count++;
+	info->port.blocked_open--;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() after, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, info->count );
+			 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 	if (!retval)
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 
 	return retval;
 }
@@ -3808,13 +3800,12 @@ static SLMP_INFO *alloc_dev(int adapter_num, int port_num, struct pci_dev *pdev)
 		printk("%s(%d) Error can't allocate device instance data for adapter %d, port %d\n",
 			__FILE__,__LINE__, adapter_num, port_num);
 	} else {
+		tty_port_init(&info->port);
 		info->magic = MGSL_MAGIC;
 		INIT_WORK(&info->task, bh_handler);
 		info->max_frame_size = 4096;
-		info->close_delay = 5*HZ/10;
-		info->closing_wait = 30*HZ;
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
+		info->port.close_delay = 5*HZ/10;
+		info->port.closing_wait = 30*HZ;
 		init_waitqueue_head(&info->status_event_wait_q);
 		init_waitqueue_head(&info->event_wait_q);
 		spin_lock_init(&info->netlock);
@@ -4885,7 +4876,7 @@ static bool rx_get_frame(SLMP_INFO *info)
 	unsigned int framesize = 0;
 	bool ReturnCode = false;
 	unsigned long flags;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	unsigned char addr_field = 0xff;
    	SCADESC *desc;
 	SCADESC_EX *desc_ex;
@@ -4983,9 +4974,8 @@ CheckAgain:
 		framesize = 0;
 #if SYNCLINK_GENERIC_HDLC
 		{
-			struct net_device_stats *stats = hdlc_stats(info->netdev);
-			stats->rx_errors++;
-			stats->rx_frame_errors++;
+			info->netdev->stats.rx_errors++;
+			info->netdev->stats.rx_frame_errors++;
 		}
 #endif
 	}
@@ -5293,11 +5283,11 @@ static bool loopback_test(SLMP_INFO *info)
 	bool rc = false;
 	unsigned long flags;
 
-	struct tty_struct *oldtty = info->tty;
+	struct tty_struct *oldtty = info->port.tty;
 	u32 speed = info->params.clock_speed;
 
 	info->params.clock_speed = 3686400;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
 	/* assume failure */
 	info->init_error = DiagStatus_DmaFailure;
@@ -5341,7 +5331,7 @@ static bool loopback_test(SLMP_INFO *info)
 	spin_unlock_irqrestore(&info->lock,flags);
 
 	info->params.clock_speed = speed;
-	info->tty = oldtty;
+	info->port.tty = oldtty;
 
 	return rc;
 }
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 047a17339f83..82f6a8c86332 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -95,8 +95,9 @@
 #include <linux/wait.h>
 #include <linux/bitops.h>
 #include <linux/delay.h>
+#include <linux/seq_file.h>
 
-#include <asm/uaccess.h>
+#include <linux/uaccess.h>
 #include <asm/system.h>
 
 #include <linux/kbd_kern.h>
@@ -682,7 +683,7 @@ static void tty_set_termios_ldisc(struct tty_struct *tty, int num)
 static DEFINE_SPINLOCK(tty_ldisc_lock);
 static DECLARE_WAIT_QUEUE_HEAD(tty_ldisc_wait);
 /* Line disc dispatch table */
-static struct tty_ldisc tty_ldiscs[NR_LDISCS];
+static struct tty_ldisc_ops *tty_ldiscs[NR_LDISCS];
 
 /**
  *	tty_register_ldisc	-	install a line discipline
@@ -697,7 +698,7 @@ static struct tty_ldisc tty_ldiscs[NR_LDISCS];
  *		takes tty_ldisc_lock to guard against ldisc races
  */
 
-int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc)
+int tty_register_ldisc(int disc, struct tty_ldisc_ops *new_ldisc)
 {
 	unsigned long flags;
 	int ret = 0;
@@ -706,10 +707,9 @@ int tty_register_ldisc(int disc, struct tty_ldisc *new_ldisc)
 		return -EINVAL;
 
 	spin_lock_irqsave(&tty_ldisc_lock, flags);
-	tty_ldiscs[disc] = *new_ldisc;
-	tty_ldiscs[disc].num = disc;
-	tty_ldiscs[disc].flags |= LDISC_FLAG_DEFINED;
-	tty_ldiscs[disc].refcount = 0;
+	tty_ldiscs[disc] = new_ldisc;
+	new_ldisc->num = disc;
+	new_ldisc->refcount = 0;
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 
 	return ret;
@@ -737,19 +737,56 @@ int tty_unregister_ldisc(int disc)
 		return -EINVAL;
 
 	spin_lock_irqsave(&tty_ldisc_lock, flags);
-	if (tty_ldiscs[disc].refcount)
+	if (tty_ldiscs[disc]->refcount)
 		ret = -EBUSY;
 	else
-		tty_ldiscs[disc].flags &= ~LDISC_FLAG_DEFINED;
+		tty_ldiscs[disc] = NULL;
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 
 	return ret;
 }
 EXPORT_SYMBOL(tty_unregister_ldisc);
 
+
+/**
+ *	tty_ldisc_try_get	-	try and reference an ldisc
+ *	@disc: ldisc number
+ *	@ld: tty ldisc structure to complete
+ *
+ *	Attempt to open and lock a line discipline into place. Return
+ *	the line discipline refcounted and assigned in ld. On an error
+ *	report the error code back
+ */
+
+static int tty_ldisc_try_get(int disc, struct tty_ldisc *ld)
+{
+	unsigned long flags;
+	struct tty_ldisc_ops *ldops;
+	int err = -EINVAL;
+	
+	spin_lock_irqsave(&tty_ldisc_lock, flags);
+	ld->ops = NULL;
+	ldops = tty_ldiscs[disc];
+	/* Check the entry is defined */
+	if (ldops) {
+		/* If the module is being unloaded we can't use it */
+		if (!try_module_get(ldops->owner))
+			err = -EAGAIN;
+		else {
+			/* lock it */
+			ldops->refcount++;
+			ld->ops = ldops;
+			err = 0;
+		}
+	}
+	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
+	return err;
+}
+
 /**
  *	tty_ldisc_get		-	take a reference to an ldisc
  *	@disc: ldisc number
+ *	@ld: tty line discipline structure to use
  *
  *	Takes a reference to a line discipline. Deals with refcounts and
  *	module locking counts. Returns NULL if the discipline is not available.
@@ -760,32 +797,20 @@ EXPORT_SYMBOL(tty_unregister_ldisc);
  *		takes tty_ldisc_lock to guard against ldisc races
  */
 
-struct tty_ldisc *tty_ldisc_get(int disc)
+static int tty_ldisc_get(int disc, struct tty_ldisc *ld)
 {
-	unsigned long flags;
-	struct tty_ldisc *ld;
+	int err;
 
 	if (disc < N_TTY || disc >= NR_LDISCS)
-		return NULL;
-
-	spin_lock_irqsave(&tty_ldisc_lock, flags);
-
-	ld = &tty_ldiscs[disc];
-	/* Check the entry is defined */
-	if (ld->flags & LDISC_FLAG_DEFINED) {
-		/* If the module is being unloaded we can't use it */
-		if (!try_module_get(ld->owner))
-			ld = NULL;
-		else /* lock it */
-			ld->refcount++;
-	} else
-		ld = NULL;
-	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-	return ld;
+		return -EINVAL;
+	err = tty_ldisc_try_get(disc, ld);
+	if (err == -EAGAIN) {
+		request_module("tty-ldisc-%d", disc);
+		err = tty_ldisc_try_get(disc, ld);
+	}
+	return err;
 }
 
-EXPORT_SYMBOL_GPL(tty_ldisc_get);
-
 /**
  *	tty_ldisc_put		-	drop ldisc reference
  *	@disc: ldisc number
@@ -797,22 +822,67 @@ EXPORT_SYMBOL_GPL(tty_ldisc_get);
  *		takes tty_ldisc_lock to guard against ldisc races
  */
 
-void tty_ldisc_put(int disc)
+static void tty_ldisc_put(struct tty_ldisc_ops *ld)
 {
-	struct tty_ldisc *ld;
 	unsigned long flags;
+	int disc = ld->num;
 
 	BUG_ON(disc < N_TTY || disc >= NR_LDISCS);
 
 	spin_lock_irqsave(&tty_ldisc_lock, flags);
-	ld = &tty_ldiscs[disc];
+	ld = tty_ldiscs[disc];
 	BUG_ON(ld->refcount == 0);
 	ld->refcount--;
 	module_put(ld->owner);
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 }
 
-EXPORT_SYMBOL_GPL(tty_ldisc_put);
+static void * tty_ldiscs_seq_start(struct seq_file *m, loff_t *pos)
+{
+	return (*pos < NR_LDISCS) ? pos : NULL;
+}
+
+static void * tty_ldiscs_seq_next(struct seq_file *m, void *v, loff_t *pos)
+{
+	(*pos)++;
+	return (*pos < NR_LDISCS) ? pos : NULL;
+}
+
+static void tty_ldiscs_seq_stop(struct seq_file *m, void *v)
+{
+}
+
+static int tty_ldiscs_seq_show(struct seq_file *m, void *v)
+{
+	int i = *(loff_t *)v;
+	struct tty_ldisc ld;
+	
+	if (tty_ldisc_get(i, &ld) < 0)
+		return 0;
+	seq_printf(m, "%-10s %2d\n", ld.ops->name ? ld.ops->name : "???", i);
+	tty_ldisc_put(ld.ops);
+	return 0;
+}
+
+static const struct seq_operations tty_ldiscs_seq_ops = {
+	.start	= tty_ldiscs_seq_start,
+	.next	= tty_ldiscs_seq_next,
+	.stop	= tty_ldiscs_seq_stop,
+	.show	= tty_ldiscs_seq_show,
+};
+
+static int proc_tty_ldiscs_open(struct inode *inode, struct file *file)
+{
+	return seq_open(file, &tty_ldiscs_seq_ops);
+}
+
+const struct file_operations tty_ldiscs_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= proc_tty_ldiscs_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= seq_release,
+};
 
 /**
  *	tty_ldisc_assign	-	set ldisc on a tty
@@ -829,8 +899,8 @@ EXPORT_SYMBOL_GPL(tty_ldisc_put);
 
 static void tty_ldisc_assign(struct tty_struct *tty, struct tty_ldisc *ld)
 {
+	ld->refcount = 0;
 	tty->ldisc = *ld;
-	tty->ldisc.refcount = 0;
 }
 
 /**
@@ -954,6 +1024,41 @@ static void tty_ldisc_enable(struct tty_struct *tty)
 }
 
 /**
+ *	tty_ldisc_restore	-	helper for tty ldisc change
+ *	@tty: tty to recover
+ *	@old: previous ldisc
+ *
+ *	Restore the previous line discipline or N_TTY when a line discipline
+ *	change fails due to an open error
+ */
+
+static void tty_ldisc_restore(struct tty_struct *tty, struct tty_ldisc *old)
+{
+	char buf[64];
+	struct tty_ldisc new_ldisc;
+
+	/* There is an outstanding reference here so this is safe */
+	tty_ldisc_get(old->ops->num, old);
+	tty_ldisc_assign(tty, old);
+	tty_set_termios_ldisc(tty, old->ops->num);
+	if (old->ops->open && (old->ops->open(tty) < 0)) {
+		tty_ldisc_put(old->ops);
+		/* This driver is always present */
+		if (tty_ldisc_get(N_TTY, &new_ldisc) < 0)
+			panic("n_tty: get");
+		tty_ldisc_assign(tty, &new_ldisc);
+		tty_set_termios_ldisc(tty, N_TTY);
+		if (new_ldisc.ops->open) {
+			int r = new_ldisc.ops->open(tty);
+				if (r < 0)
+				panic("Couldn't open N_TTY ldisc for "
+				      "%s --- error %d.",
+				      tty_name(tty, buf), r);
+		}
+	}
+}
+
+/**
  *	tty_set_ldisc		-	set line discipline
  *	@tty: the terminal to set
  *	@ldisc: the line discipline
@@ -967,28 +1072,18 @@ static void tty_ldisc_enable(struct tty_struct *tty)
 
 static int tty_set_ldisc(struct tty_struct *tty, int ldisc)
 {
-	int retval = 0;
-	struct tty_ldisc o_ldisc;
-	char buf[64];
+	int retval;
+	struct tty_ldisc o_ldisc, new_ldisc;
 	int work;
 	unsigned long flags;
-	struct tty_ldisc *ld;
 	struct tty_struct *o_tty;
 
-	if ((ldisc < N_TTY) || (ldisc >= NR_LDISCS))
-		return -EINVAL;
-
 restart:
-
-	ld = tty_ldisc_get(ldisc);
-	/* Eduardo Blanco <ejbs@cs.cs.com.uy> */
-	/* Cyrus Durgin <cider@speakeasy.org> */
-	if (ld == NULL) {
-		request_module("tty-ldisc-%d", ldisc);
-		ld = tty_ldisc_get(ldisc);
-	}
-	if (ld == NULL)
-		return -EINVAL;
+	/* This is a bit ugly for now but means we can break the 'ldisc
+	   is part of the tty struct' assumption later */
+	retval = tty_ldisc_get(ldisc, &new_ldisc);
+	if (retval)
+		return retval;
 
 	/*
 	 *	Problem: What do we do if this blocks ?
@@ -996,8 +1091,8 @@ restart:
 
 	tty_wait_until_sent(tty, 0);
 
-	if (tty->ldisc.num == ldisc) {
-		tty_ldisc_put(ldisc);
+	if (tty->ldisc.ops->num == ldisc) {
+		tty_ldisc_put(new_ldisc.ops);
 		return 0;
 	}
 
@@ -1024,7 +1119,7 @@ restart:
 			/* Free the new ldisc we grabbed. Must drop the lock
 			   first. */
 			spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-			tty_ldisc_put(ldisc);
+			tty_ldisc_put(o_ldisc.ops);
 			/*
 			 * There are several reasons we may be busy, including
 			 * random momentary I/O traffic. We must therefore
@@ -1038,7 +1133,7 @@ restart:
 		}
 		if (o_tty && o_tty->ldisc.refcount) {
 			spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-			tty_ldisc_put(ldisc);
+			tty_ldisc_put(o_tty->ldisc.ops);
 			if (wait_event_interruptible(tty_ldisc_wait, o_tty->ldisc.refcount == 0) < 0)
 				return -ERESTARTSYS;
 			goto restart;
@@ -1049,8 +1144,9 @@ restart:
 	 *	another ldisc change
 	 */
 	if (!test_bit(TTY_LDISC, &tty->flags)) {
+		struct tty_ldisc *ld;
 		spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-		tty_ldisc_put(ldisc);
+		tty_ldisc_put(new_ldisc.ops);
 		ld = tty_ldisc_ref_wait(tty);
 		tty_ldisc_deref(ld);
 		goto restart;
@@ -1060,7 +1156,7 @@ restart:
 	if (o_tty)
 		clear_bit(TTY_LDISC, &o_tty->flags);
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
-
+	
 	/*
 	 *	From this point on we know nobody has an ldisc
 	 *	usage reference, nor can they obtain one until
@@ -1070,45 +1166,30 @@ restart:
 	work = cancel_delayed_work(&tty->buf.work);
 	/*
 	 * Wait for ->hangup_work and ->buf.work handlers to terminate
+	 * MUST NOT hold locks here.
 	 */
 	flush_scheduled_work();
 	/* Shutdown the current discipline. */
-	if (tty->ldisc.close)
-		(tty->ldisc.close)(tty);
+	if (o_ldisc.ops->close)
+		(o_ldisc.ops->close)(tty);
 
 	/* Now set up the new line discipline. */
-	tty_ldisc_assign(tty, ld);
+	tty_ldisc_assign(tty, &new_ldisc);
 	tty_set_termios_ldisc(tty, ldisc);
-	if (tty->ldisc.open)
-		retval = (tty->ldisc.open)(tty);
+	if (new_ldisc.ops->open)
+		retval = (new_ldisc.ops->open)(tty);
 	if (retval < 0) {
-		tty_ldisc_put(ldisc);
-		/* There is an outstanding reference here so this is safe */
-		tty_ldisc_assign(tty, tty_ldisc_get(o_ldisc.num));
-		tty_set_termios_ldisc(tty, tty->ldisc.num);
-		if (tty->ldisc.open && (tty->ldisc.open(tty) < 0)) {
-			tty_ldisc_put(o_ldisc.num);
-			/* This driver is always present */
-			tty_ldisc_assign(tty, tty_ldisc_get(N_TTY));
-			tty_set_termios_ldisc(tty, N_TTY);
-			if (tty->ldisc.open) {
-				int r = tty->ldisc.open(tty);
-
-				if (r < 0)
-					panic("Couldn't open N_TTY ldisc for "
-					      "%s --- error %d.",
-					      tty_name(tty, buf), r);
-			}
-		}
+		tty_ldisc_put(new_ldisc.ops);
+		tty_ldisc_restore(tty, &o_ldisc);
 	}
 	/* At this point we hold a reference to the new ldisc and a
 	   a reference to the old ldisc. If we ended up flipping back
 	   to the existing ldisc we have two references to it */
 
-	if (tty->ldisc.num != o_ldisc.num && tty->ops->set_ldisc)
+	if (tty->ldisc.ops->num != o_ldisc.ops->num && tty->ops->set_ldisc)
 		tty->ops->set_ldisc(tty);
 
-	tty_ldisc_put(o_ldisc.num);
+	tty_ldisc_put(o_ldisc.ops);
 
 	/*
 	 *	Allow ldisc referencing to occur as soon as the driver
@@ -1335,8 +1416,8 @@ void tty_wakeup(struct tty_struct *tty)
 	if (test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) {
 		ld = tty_ldisc_ref(tty);
 		if (ld) {
-			if (ld->write_wakeup)
-				ld->write_wakeup(tty);
+			if (ld->ops->write_wakeup)
+				ld->ops->write_wakeup(tty);
 			tty_ldisc_deref(ld);
 		}
 	}
@@ -1357,8 +1438,8 @@ void tty_ldisc_flush(struct tty_struct *tty)
 {
 	struct tty_ldisc *ld = tty_ldisc_ref(tty);
 	if (ld) {
-		if (ld->flush_buffer)
-			ld->flush_buffer(tty);
+		if (ld->ops->flush_buffer)
+			ld->ops->flush_buffer(tty);
 		tty_ldisc_deref(ld);
 	}
 	tty_buffer_flush(tty);
@@ -1386,7 +1467,7 @@ static void tty_reset_termios(struct tty_struct *tty)
  *	do_tty_hangup		-	actual handler for hangup events
  *	@work: tty device
  *
- *	This can be called by the "eventd" kernel thread.  That is process
+k *	This can be called by the "eventd" kernel thread.  That is process
  *	synchronous but doesn't hold any locks, so we need to make sure we
  *	have the appropriate locks for what we're doing.
  *
@@ -1449,14 +1530,14 @@ static void do_tty_hangup(struct work_struct *work)
 	ld = tty_ldisc_ref(tty);
 	if (ld != NULL) {
 		/* We may have no line discipline at this point */
-		if (ld->flush_buffer)
-			ld->flush_buffer(tty);
+		if (ld->ops->flush_buffer)
+			ld->ops->flush_buffer(tty);
 		tty_driver_flush_buffer(tty);
 		if ((test_bit(TTY_DO_WRITE_WAKEUP, &tty->flags)) &&
-		    ld->write_wakeup)
-			ld->write_wakeup(tty);
-		if (ld->hangup)
-			ld->hangup(tty);
+		    ld->ops->write_wakeup)
+			ld->ops->write_wakeup(tty);
+		if (ld->ops->hangup)
+			ld->ops->hangup(tty);
 	}
 	/*
 	 * FIXME: Once we trust the LDISC code better we can wait here for
@@ -1825,8 +1906,8 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
 	/* We want to wait for the line discipline to sort out in this
 	   situation */
 	ld = tty_ldisc_ref_wait(tty);
-	if (ld->read)
-		i = (ld->read)(tty, file, buf, count);
+	if (ld->ops->read)
+		i = (ld->ops->read)(tty, file, buf, count);
 	else
 		i = -EIO;
 	tty_ldisc_deref(ld);
@@ -1978,10 +2059,10 @@ static ssize_t tty_write(struct file *file, const char __user *buf,
 		printk(KERN_ERR "tty driver %s lacks a write_room method.\n",
 			tty->driver->name);
 	ld = tty_ldisc_ref_wait(tty);
-	if (!ld->write)
+	if (!ld->ops->write)
 		ret = -EIO;
 	else
-		ret = do_tty_write(ld->write, tty, file, buf, count);
+		ret = do_tty_write(ld->ops->write, tty, file, buf, count);
 	tty_ldisc_deref(ld);
 	return ret;
 }
@@ -2007,6 +2088,42 @@ ssize_t redirected_tty_write(struct file *file, const char __user *buf,
 	return tty_write(file, buf, count, ppos);
 }
 
+void tty_port_init(struct tty_port *port)
+{
+	memset(port, 0, sizeof(*port));
+	init_waitqueue_head(&port->open_wait);
+	init_waitqueue_head(&port->close_wait);
+	mutex_init(&port->mutex);
+	port->close_delay = (50 * HZ) / 100;
+	port->closing_wait = (3000 * HZ) / 100;
+}
+EXPORT_SYMBOL(tty_port_init);
+
+int tty_port_alloc_xmit_buf(struct tty_port *port)
+{
+	/* We may sleep in get_zeroed_page() */
+	mutex_lock(&port->mutex);
+	if (port->xmit_buf == NULL)
+		port->xmit_buf = (unsigned char *)get_zeroed_page(GFP_KERNEL);
+	mutex_unlock(&port->mutex);
+	if (port->xmit_buf == NULL)
+		return -ENOMEM;
+	return 0;
+}
+EXPORT_SYMBOL(tty_port_alloc_xmit_buf);
+
+void tty_port_free_xmit_buf(struct tty_port *port)
+{
+	mutex_lock(&port->mutex);
+	if (port->xmit_buf != NULL) {
+		free_page((unsigned long)port->xmit_buf);
+		port->xmit_buf = NULL;
+	}
+	mutex_unlock(&port->mutex);
+}
+EXPORT_SYMBOL(tty_port_free_xmit_buf);
+
+
 static char ptychar[] = "pqrstuvwxyzabcde";
 
 /**
@@ -2076,6 +2193,7 @@ static int init_dev(struct tty_driver *driver, int idx,
 	struct ktermios *tp, **tp_loc, *o_tp, **o_tp_loc;
 	struct ktermios *ltp, **ltp_loc, *o_ltp, **o_ltp_loc;
 	int retval = 0;
+	struct tty_ldisc *ld;
 
 	/* check whether we're reopening an existing tty */
 	if (driver->flags & TTY_DRIVER_DEVPTS_MEM) {
@@ -2224,17 +2342,19 @@ static int init_dev(struct tty_driver *driver, int idx,
 	 * If we fail here just call release_tty to clean up.  No need
 	 * to decrement the use counts, as release_tty doesn't care.
 	 */
+	 
+	ld = &tty->ldisc;
 
-	if (tty->ldisc.open) {
-		retval = (tty->ldisc.open)(tty);
+	if (ld->ops->open) {
+		retval = (ld->ops->open)(tty);
 		if (retval)
 			goto release_mem_out;
 	}
-	if (o_tty && o_tty->ldisc.open) {
-		retval = (o_tty->ldisc.open)(o_tty);
+	if (o_tty && o_tty->ldisc.ops->open) {
+		retval = (o_tty->ldisc.ops->open)(o_tty);
 		if (retval) {
-			if (tty->ldisc.close)
-				(tty->ldisc.close)(tty);
+			if (ld->ops->close)
+				(ld->ops->close)(tty);
 			goto release_mem_out;
 		}
 		tty_ldisc_enable(o_tty);
@@ -2378,6 +2498,7 @@ static void release_tty(struct tty_struct *tty, int idx)
 static void release_dev(struct file *filp)
 {
 	struct tty_struct *tty, *o_tty;
+	struct tty_ldisc ld;
 	int	pty_master, tty_closing, o_tty_closing, do_sleep;
 	int	devpts;
 	int	idx;
@@ -2611,26 +2732,27 @@ static void release_dev(struct file *filp)
 	spin_unlock_irqrestore(&tty_ldisc_lock, flags);
 	/*
 	 * Shutdown the current line discipline, and reset it to N_TTY.
-	 * N.B. why reset ldisc when we're releasing the memory??
 	 *
 	 * FIXME: this MUST get fixed for the new reflocking
 	 */
-	if (tty->ldisc.close)
-		(tty->ldisc.close)(tty);
-	tty_ldisc_put(tty->ldisc.num);
+	if (tty->ldisc.ops->close)
+		(tty->ldisc.ops->close)(tty);
+	tty_ldisc_put(tty->ldisc.ops);
 
 	/*
 	 *	Switch the line discipline back
 	 */
-	tty_ldisc_assign(tty, tty_ldisc_get(N_TTY));
+	WARN_ON(tty_ldisc_get(N_TTY, &ld));
+	tty_ldisc_assign(tty, &ld);
 	tty_set_termios_ldisc(tty, N_TTY);
 	if (o_tty) {
 		/* FIXME: could o_tty be in setldisc here ? */
 		clear_bit(TTY_LDISC, &o_tty->flags);
-		if (o_tty->ldisc.close)
-			(o_tty->ldisc.close)(o_tty);
-		tty_ldisc_put(o_tty->ldisc.num);
-		tty_ldisc_assign(o_tty, tty_ldisc_get(N_TTY));
+		if (o_tty->ldisc.ops->close)
+			(o_tty->ldisc.ops->close)(o_tty);
+		tty_ldisc_put(o_tty->ldisc.ops);
+		WARN_ON(tty_ldisc_get(N_TTY, &ld));
+		tty_ldisc_assign(o_tty, &ld);
 		tty_set_termios_ldisc(o_tty, N_TTY);
 	}
 	/*
@@ -2899,8 +3021,8 @@ static unsigned int tty_poll(struct file *filp, poll_table *wait)
 		return 0;
 
 	ld = tty_ldisc_ref_wait(tty);
-	if (ld->poll)
-		ret = (ld->poll)(tty, filp, wait);
+	if (ld->ops->poll)
+		ret = (ld->ops->poll)(tty, filp, wait);
 	tty_ldisc_deref(ld);
 	return ret;
 }
@@ -2974,7 +3096,7 @@ static int tiocsti(struct tty_struct *tty, char __user *p)
 	if (get_user(ch, p))
 		return -EFAULT;
 	ld = tty_ldisc_ref_wait(tty);
-	ld->receive_buf(tty, &ch, &mbz, 1);
+	ld->ops->receive_buf(tty, &ch, &mbz, 1);
 	tty_ldisc_deref(ld);
 	return 0;
 }
@@ -3395,35 +3517,31 @@ static int tty_tiocmget(struct tty_struct *tty, struct file *file, int __user *p
 static int tty_tiocmset(struct tty_struct *tty, struct file *file, unsigned int cmd,
 	     unsigned __user *p)
 {
-	int retval = -EINVAL;
-
-	if (tty->ops->tiocmset) {
-		unsigned int set, clear, val;
-
-		retval = get_user(val, p);
-		if (retval)
-			return retval;
-
-		set = clear = 0;
-		switch (cmd) {
-		case TIOCMBIS:
-			set = val;
-			break;
-		case TIOCMBIC:
-			clear = val;
-			break;
-		case TIOCMSET:
-			set = val;
-			clear = ~val;
-			break;
-		}
+	int retval;
+	unsigned int set, clear, val;
 
-		set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
-		clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+	if (tty->ops->tiocmset == NULL)
+		return -EINVAL;
 
-		retval = tty->ops->tiocmset(tty, file, set, clear);
+	retval = get_user(val, p);
+	if (retval)
+		return retval;
+	set = clear = 0;
+	switch (cmd) {
+	case TIOCMBIS:
+		set = val;
+		break;
+	case TIOCMBIC:
+		clear = val;
+		break;
+	case TIOCMSET:
+		set = val;
+		clear = ~val;
+		break;
 	}
-	return retval;
+	set &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+	clear &= TIOCM_DTR|TIOCM_RTS|TIOCM_OUT1|TIOCM_OUT2|TIOCM_LOOP;
+	return tty->ops->tiocmset(tty, file, set, clear);
 }
 
 /*
@@ -3528,7 +3646,7 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	case TIOCGSID:
 		return tiocgsid(tty, real_tty, p);
 	case TIOCGETD:
-		return put_user(tty->ldisc.num, (int __user *)p);
+		return put_user(tty->ldisc.ops->num, (int __user *)p);
 	case TIOCSETD:
 		return tiocsetd(tty, p);
 #ifdef CONFIG_VT
@@ -3581,8 +3699,8 @@ long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	}
 	ld = tty_ldisc_ref_wait(tty);
 	retval = -EINVAL;
-	if (ld->ioctl) {
-		retval = ld->ioctl(tty, file, cmd, arg);
+	if (ld->ops->ioctl) {
+		retval = ld->ops->ioctl(tty, file, cmd, arg);
 		if (retval == -ENOIOCTLCMD)
 			retval = -EINVAL;
 	}
@@ -3609,8 +3727,8 @@ static long tty_compat_ioctl(struct file *file, unsigned int cmd,
 	}
 
 	ld = tty_ldisc_ref_wait(tty);
-	if (ld->compat_ioctl)
-		retval = ld->compat_ioctl(tty, file, cmd, arg);
+	if (ld->ops->compat_ioctl)
+		retval = ld->ops->compat_ioctl(tty, file, cmd, arg);
 	tty_ldisc_deref(ld);
 
 	return retval;
@@ -3782,7 +3900,8 @@ static void flush_to_ldisc(struct work_struct *work)
 			flag_buf = head->flag_buf_ptr + head->read;
 			head->read += count;
 			spin_unlock_irqrestore(&tty->buf.lock, flags);
-			disc->receive_buf(tty, char_buf, flag_buf, count);
+			disc->ops->receive_buf(tty, char_buf,
+							flag_buf, count);
 			spin_lock_irqsave(&tty->buf.lock, flags);
 		}
 		/* Restore the queue head */
@@ -3843,9 +3962,12 @@ EXPORT_SYMBOL(tty_flip_buffer_push);
 
 static void initialize_tty_struct(struct tty_struct *tty)
 {
+	struct tty_ldisc ld;
 	memset(tty, 0, sizeof(struct tty_struct));
 	tty->magic = TTY_MAGIC;
-	tty_ldisc_assign(tty, tty_ldisc_get(N_TTY));
+	if (tty_ldisc_get(N_TTY, &ld) < 0)
+		panic("n_tty: init_tty");
+	tty_ldisc_assign(tty, &ld);
 	tty->session = NULL;
 	tty->pgrp = NULL;
 	tty->overrun_time = jiffies;
diff --git a/drivers/char/tty_ioctl.c b/drivers/char/tty_ioctl.c
index 8f81139d6194..ea9fc5d03b99 100644
--- a/drivers/char/tty_ioctl.c
+++ b/drivers/char/tty_ioctl.c
@@ -491,8 +491,8 @@ static void change_termios(struct tty_struct *tty, struct ktermios *new_termios)
 
 	ld = tty_ldisc_ref(tty);
 	if (ld != NULL) {
-		if (ld->set_termios)
-			(ld->set_termios)(tty, &old_termios);
+		if (ld->ops->set_termios)
+			(ld->ops->set_termios)(tty, &old_termios);
 		tty_ldisc_deref(ld);
 	}
 	mutex_unlock(&tty->termios_mutex);
@@ -552,8 +552,8 @@ static int set_termios(struct tty_struct *tty, void __user *arg, int opt)
 	ld = tty_ldisc_ref(tty);
 
 	if (ld != NULL) {
-		if ((opt & TERMIOS_FLUSH) && ld->flush_buffer)
-			ld->flush_buffer(tty);
+		if ((opt & TERMIOS_FLUSH) && ld->ops->flush_buffer)
+			ld->ops->flush_buffer(tty);
 		tty_ldisc_deref(ld);
 	}
 
@@ -959,12 +959,12 @@ int tty_perform_flush(struct tty_struct *tty, unsigned long arg)
 	ld = tty_ldisc_ref(tty);
 	switch (arg) {
 	case TCIFLUSH:
-		if (ld && ld->flush_buffer)
-			ld->flush_buffer(tty);
+		if (ld && ld->ops->flush_buffer)
+			ld->ops->flush_buffer(tty);
 		break;
 	case TCIOFLUSH:
-		if (ld && ld->flush_buffer)
-			ld->flush_buffer(tty);
+		if (ld && ld->ops->flush_buffer)
+			ld->ops->flush_buffer(tty);
 		/* fall through */
 	case TCOFLUSH:
 		tty_driver_flush_buffer(tty);