Merge commit 'v2.6.30-rc5' into next

48 files changed, 1754 insertions, 978 deletions

diff --git a/drivers/char/agp/amd64-agp.c b/drivers/char/agp/amd64-agp.c
index 52f4361..d765afd 100644
--- a/drivers/char/agp/amd64-agp.c
+++ b/drivers/char/agp/amd64-agp.c
@@ -271,15 +271,15 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp,
 	nb_order = (nb_order >> 1) & 7;
 	pci_read_config_dword(nb, AMD64_GARTAPERTUREBASE, &nb_base);
 	nb_aper = nb_base << 25;
-	if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order)) {
-		return 0;
-	}
 
 	/* Northbridge seems to contain crap. Try the AGP bridge. */
 
 	pci_read_config_word(agp, cap+0x14, &apsize);
-	if (apsize == 0xffff)
+	if (apsize == 0xffff) {
+		if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order))
+			return 0;
 		return -1;
+	}
 
 	apsize &= 0xfff;
 	/* Some BIOS use weird encodings not in the AGPv3 table. */
@@ -301,6 +301,11 @@ static __devinit int fix_northbridge(struct pci_dev *nb, struct pci_dev *agp,
 		order = nb_order;
 	}
 
+	if (nb_order >= order) {
+		if (agp_aperture_valid(nb_aper, (32*1024*1024)<<nb_order))
+			return 0;
+	}
+
 	dev_info(&agp->dev, "aperture from AGP @ %Lx size %u MB\n",
 		 aper, 32 << order);
 	if (order < 0 || !agp_aperture_valid(aper, (32*1024*1024)<<order))
diff --git a/drivers/char/agp/generic.c b/drivers/char/agp/generic.c
index 10d6cbd..2224b76 100644
--- a/drivers/char/agp/generic.c
+++ b/drivers/char/agp/generic.c
@@ -1226,7 +1226,7 @@ int agp_generic_alloc_pages(struct agp_bridge_data *bridge, struct agp_memory *m
 	int i, ret = -ENOMEM;
 
 	for (i = 0; i < num_pages; i++) {
-		page = alloc_page(GFP_KERNEL | GFP_DMA32);
+		page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
 		/* agp_free_memory() needs gart address */
 		if (page == NULL)
 			goto out;
@@ -1257,7 +1257,7 @@ void *agp_generic_alloc_page(struct agp_bridge_data *bridge)
 {
 	struct page * page;
 
-	page = alloc_page(GFP_KERNEL | GFP_DMA32);
+	page = alloc_page(GFP_KERNEL | GFP_DMA32 | __GFP_ZERO);
 	if (page == NULL)
 		return NULL;
 
diff --git a/drivers/char/agp/intel-agp.c b/drivers/char/agp/intel-agp.c
index c771418..3686912 100644
--- a/drivers/char/agp/intel-agp.c
+++ b/drivers/char/agp/intel-agp.c
@@ -26,6 +26,10 @@
 #define PCI_DEVICE_ID_INTEL_82965GME_IG     0x2A12
 #define PCI_DEVICE_ID_INTEL_82945GME_HB     0x27AC
 #define PCI_DEVICE_ID_INTEL_82945GME_IG     0x27AE
+#define PCI_DEVICE_ID_INTEL_IGDGM_HB        0xA010
+#define PCI_DEVICE_ID_INTEL_IGDGM_IG        0xA011
+#define PCI_DEVICE_ID_INTEL_IGDG_HB         0xA000
+#define PCI_DEVICE_ID_INTEL_IGDG_IG         0xA001
 #define PCI_DEVICE_ID_INTEL_G33_HB          0x29C0
 #define PCI_DEVICE_ID_INTEL_G33_IG          0x29C2
 #define PCI_DEVICE_ID_INTEL_Q35_HB          0x29B0
@@ -60,7 +64,12 @@
 
 #define IS_G33 (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_G33_HB || \
 		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q35_HB || \
-		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q33_HB)
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q33_HB || \
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDGM_HB || \
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDG_HB)
+
+#define IS_IGD (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDGM_HB || \
+		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGDG_HB)
 
 #define IS_G4X (agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_IGD_E_HB || \
 		agp_bridge->dev->device == PCI_DEVICE_ID_INTEL_Q45_HB || \
@@ -510,7 +519,7 @@ static void intel_i830_init_gtt_entries(void)
 			size = 512;
 		}
 		size += 4; /* add in BIOS popup space */
-	} else if (IS_G33) {
+	} else if (IS_G33 && !IS_IGD) {
 	/* G33's GTT size defined in gmch_ctrl */
 		switch (gmch_ctrl & G33_PGETBL_SIZE_MASK) {
 		case G33_PGETBL_SIZE_1M:
@@ -526,7 +535,7 @@ static void intel_i830_init_gtt_entries(void)
 			size = 512;
 		}
 		size += 4;
-	} else if (IS_G4X) {
+	} else if (IS_G4X || IS_IGD) {
 		/* On 4 series hardware, GTT stolen is separate from graphics
 		 * stolen, ignore it in stolen gtt entries counting.  However,
 		 * 4KB of the stolen memory doesn't get mapped to the GTT.
@@ -633,13 +642,15 @@ static void intel_i830_init_gtt_entries(void)
 			break;
 		}
 	}
-	if (gtt_entries > 0)
+	if (gtt_entries > 0) {
 		dev_info(&agp_bridge->dev->dev, "detected %dK %s memory\n",
 		       gtt_entries / KB(1), local ? "local" : "stolen");
-	else
+		gtt_entries /= KB(4);
+	} else {
 		dev_info(&agp_bridge->dev->dev,
 		       "no pre-allocated video memory detected\n");
-	gtt_entries /= KB(4);
+		gtt_entries = 0;
+	}
 
 	intel_private.gtt_entries = gtt_entries;
 }
@@ -2120,6 +2131,8 @@ static const struct intel_driver_description {
 	{ PCI_DEVICE_ID_INTEL_82845G_HB, PCI_DEVICE_ID_INTEL_82845G_IG, 0, "830M",
 		&intel_845_driver, &intel_830_driver },
 	{ PCI_DEVICE_ID_INTEL_82850_HB, 0, 0, "i850", &intel_850_driver, NULL },
+	{ PCI_DEVICE_ID_INTEL_82854_HB, PCI_DEVICE_ID_INTEL_82854_IG, 0, "854",
+		&intel_845_driver, &intel_830_driver },
 	{ PCI_DEVICE_ID_INTEL_82855PM_HB, 0, 0, "855PM", &intel_845_driver, NULL },
 	{ PCI_DEVICE_ID_INTEL_82855GM_HB, PCI_DEVICE_ID_INTEL_82855GM_IG, 0, "855GM",
 		&intel_845_driver, &intel_830_driver },
@@ -2159,6 +2172,10 @@ static const struct intel_driver_description {
 		NULL, &intel_g33_driver },
 	{ PCI_DEVICE_ID_INTEL_Q33_HB, PCI_DEVICE_ID_INTEL_Q33_IG, 0, "Q33",
 		NULL, &intel_g33_driver },
+	{ PCI_DEVICE_ID_INTEL_IGDGM_HB, PCI_DEVICE_ID_INTEL_IGDGM_IG, 0, "IGD",
+		NULL, &intel_g33_driver },
+	{ PCI_DEVICE_ID_INTEL_IGDG_HB, PCI_DEVICE_ID_INTEL_IGDG_IG, 0, "IGD",
+		NULL, &intel_g33_driver },
 	{ PCI_DEVICE_ID_INTEL_GM45_HB, PCI_DEVICE_ID_INTEL_GM45_IG, 0,
 	    "Mobile Intel® GM45 Express", NULL, &intel_i965_driver },
 	{ PCI_DEVICE_ID_INTEL_IGD_E_HB, PCI_DEVICE_ID_INTEL_IGD_E_IG, 0,
@@ -2340,6 +2357,7 @@ static struct pci_device_id agp_intel_pci_table[] = {
 	ID(PCI_DEVICE_ID_INTEL_82845_HB),
 	ID(PCI_DEVICE_ID_INTEL_82845G_HB),
 	ID(PCI_DEVICE_ID_INTEL_82850_HB),
+	ID(PCI_DEVICE_ID_INTEL_82854_HB),
 	ID(PCI_DEVICE_ID_INTEL_82855PM_HB),
 	ID(PCI_DEVICE_ID_INTEL_82855GM_HB),
 	ID(PCI_DEVICE_ID_INTEL_82860_HB),
@@ -2353,6 +2371,8 @@ static struct pci_device_id agp_intel_pci_table[] = {
 	ID(PCI_DEVICE_ID_INTEL_82945G_HB),
 	ID(PCI_DEVICE_ID_INTEL_82945GM_HB),
 	ID(PCI_DEVICE_ID_INTEL_82945GME_HB),
+	ID(PCI_DEVICE_ID_INTEL_IGDGM_HB),
+	ID(PCI_DEVICE_ID_INTEL_IGDG_HB),
 	ID(PCI_DEVICE_ID_INTEL_82946GZ_HB),
 	ID(PCI_DEVICE_ID_INTEL_82G35_HB),
 	ID(PCI_DEVICE_ID_INTEL_82965Q_HB),
diff --git a/drivers/char/agp/parisc-agp.c b/drivers/char/agp/parisc-agp.c
index db60539..699e342 100644
--- a/drivers/char/agp/parisc-agp.c
+++ b/drivers/char/agp/parisc-agp.c
@@ -359,9 +359,16 @@ fail:
 	return error;
 }
 
-static struct device *next_device(struct klist_iter *i) {
-	struct klist_node * n = klist_next(i);
-	return n ? container_of(n, struct device, knode_parent) : NULL;
+static int
+find_quicksilver(struct device *dev, void *data)
+{
+	struct parisc_device **lba = data;
+	struct parisc_device *padev = to_parisc_device(dev);
+
+	if (IS_QUICKSILVER(padev))
+		*lba = padev;
+
+	return 0;
 }
 
 static int
@@ -372,8 +379,6 @@ parisc_agp_init(void)
 	int err = -1;
 	struct parisc_device *sba = NULL, *lba = NULL;
 	struct lba_device *lbadev = NULL;
-	struct device *dev = NULL;
-	struct klist_iter i;
 
 	if (!sba_list)
 		goto out;
@@ -386,13 +391,7 @@ parisc_agp_init(void)
 	}
 
 	/* Now search our Pluto for our precious AGP device... */
-	klist_iter_init(&sba->dev.klist_children, &i);
-	while ((dev = next_device(&i))) {
-		struct parisc_device *padev = to_parisc_device(dev);
-		if (IS_QUICKSILVER(padev))
-			lba = padev;
-	}
-	klist_iter_exit(&i);
+	device_for_each_child(&sba->dev, &lba, find_quicksilver);
 
 	if (!lba) {
 		printk(KERN_INFO DRVPFX "No AGP devices found.\n");
diff --git a/drivers/char/amiserial.c b/drivers/char/amiserial.c
index a58869e..fd3ebd1 100644
--- a/drivers/char/amiserial.c
+++ b/drivers/char/amiserial.c
@@ -79,6 +79,7 @@ static char *serial_version = "4.30";
 #include <linux/ptrace.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/init.h>
 #include <linux/bitops.h>
@@ -1825,14 +1826,13 @@ static int rs_open(struct tty_struct *tty, struct file * filp)
  * /proc fs routines....
  */
 
-static inline int line_info(char *buf, struct serial_state *state)
+static inline void line_info(struct seq_file *m, struct serial_state *state)
 {
 	struct async_struct *info = state->info, scr_info;
 	char	stat_buf[30], control, status;
-	int	ret;
 	unsigned long flags;
 
-	ret = sprintf(buf, "%d: uart:amiga_builtin",state->line);
+	seq_printf(m, "%d: uart:amiga_builtin",state->line);
 
 	/*
 	 * Figure out the current RS-232 lines
@@ -1864,55 +1864,49 @@ static inline int line_info(char *buf, struct serial_state *state)
 		strcat(stat_buf, "|CD");
 
 	if (info->quot) {
-		ret += sprintf(buf+ret, " baud:%d",
-			       state->baud_base / info->quot);
+		seq_printf(m, " baud:%d", state->baud_base / info->quot);
 	}
 
-	ret += sprintf(buf+ret, " tx:%d rx:%d",
-		      state->icount.tx, state->icount.rx);
+	seq_printf(m, " tx:%d rx:%d", state->icount.tx, state->icount.rx);
 
 	if (state->icount.frame)
-		ret += sprintf(buf+ret, " fe:%d", state->icount.frame);
+		seq_printf(m, " fe:%d", state->icount.frame);
 
 	if (state->icount.parity)
-		ret += sprintf(buf+ret, " pe:%d", state->icount.parity);
+		seq_printf(m, " pe:%d", state->icount.parity);
 
 	if (state->icount.brk)
-		ret += sprintf(buf+ret, " brk:%d", state->icount.brk);
+		seq_printf(m, " brk:%d", state->icount.brk);
 
 	if (state->icount.overrun)
-		ret += sprintf(buf+ret, " oe:%d", state->icount.overrun);
+		seq_printf(m, " oe:%d", state->icount.overrun);
 
 	/*
 	 * Last thing is the RS-232 status lines
 	 */
-	ret += sprintf(buf+ret, " %s\n", stat_buf+1);
-	return ret;
+	seq_printf(m, " %s\n", stat_buf+1);
 }
 
-static int rs_read_proc(char *page, char **start, off_t off, int count,
-			int *eof, void *data)
+static int rs_proc_show(struct seq_file *m, void *v)
 {
-	int len = 0, l;
-	off_t	begin = 0;
-
-	len += sprintf(page, "serinfo:1.0 driver:%s\n", serial_version);
-	l = line_info(page + len, &rs_table[0]);
-	len += l;
-	if (len+begin > off+count)
-	  goto done;
-	if (len+begin < off) {
-	  begin += len;
-	  len = 0;
-	}
-	*eof = 1;
-done:
-	if (off >= len+begin)
-		return 0;
-	*start = page + (off-begin);
-	return ((count < begin+len-off) ? count : begin+len-off);
+	seq_printf(m, "serinfo:1.0 driver:%s\n", serial_version);
+	line_info(m, &rs_table[0]);
+	return 0;
 }
 
+static int rs_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, rs_proc_show, NULL);
+}
+
+static const struct file_operations rs_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= rs_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /*
  * ---------------------------------------------------------------------
  * rs_init() and friends
@@ -1951,9 +1945,9 @@ static const struct tty_operations serial_ops = {
 	.break_ctl = rs_break,
 	.send_xchar = rs_send_xchar,
 	.wait_until_sent = rs_wait_until_sent,
-	.read_proc = rs_read_proc,
 	.tiocmget = rs_tiocmget,
 	.tiocmset = rs_tiocmset,
+	.proc_fops = &rs_proc_fops,
 };
 
 /*
diff --git a/drivers/char/applicom.c b/drivers/char/applicom.c
index 05674fe..73a0765 100644
--- a/drivers/char/applicom.c
+++ b/drivers/char/applicom.c
@@ -75,6 +75,7 @@ MODULE_DEVICE_TABLE(pci, applicom_pci_tbl);
 MODULE_AUTHOR("David Woodhouse & Applicom International");
 MODULE_DESCRIPTION("Driver for Applicom Profibus card");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_MISCDEV(AC_MINOR);
 
 MODULE_SUPPORTED_DEVICE("ac");
 
diff --git a/drivers/char/bsr.c b/drivers/char/bsr.c
index f6094ae..140ea10 100644
--- a/drivers/char/bsr.c
+++ b/drivers/char/bsr.c
@@ -140,7 +140,7 @@ static int bsr_open(struct inode * inode, struct file * filp)
 	return 0;
 }
 
-const static struct file_operations bsr_fops = {
+static const struct file_operations bsr_fops = {
 	.owner = THIS_MODULE,
 	.mmap  = bsr_mmap,
 	.open  = bsr_open,
diff --git a/drivers/char/cyclades.c b/drivers/char/cyclades.c
index 6a59f72..1fdb9f6 100644
--- a/drivers/char/cyclades.c
+++ b/drivers/char/cyclades.c
@@ -646,6 +646,7 @@
 #include <linux/spinlock.h>
 #include <linux/bitops.h>
 #include <linux/firmware.h>
+#include <linux/device.h>
 
 #include <asm/system.h>
 #include <linux/io.h>
@@ -657,6 +658,7 @@
 
 #include <linux/stat.h>
 #include <linux/proc_fs.h>
+#include <linux/seq_file.h>
 
 static void cy_throttle(struct tty_struct *tty);
 static void cy_send_xchar(struct tty_struct *tty, char ch);
@@ -868,8 +870,6 @@ static int cyz_issue_cmd(struct cyclades_card *, __u32, __u8, __u32);
 static unsigned detect_isa_irq(void __iomem *);
 #endif				/* CONFIG_ISA */
 
-static int cyclades_get_proc_info(char *, char **, off_t, int, int *, void *);
-
 #ifndef CONFIG_CYZ_INTR
 static void cyz_poll(unsigned long);
 
@@ -5216,31 +5216,22 @@ static struct pci_driver cy_pci_driver = {
 };
 #endif
 
-static int
-cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
-		int *eof, void *data)
+static int cyclades_proc_show(struct seq_file *m, void *v)
 {
 	struct cyclades_port *info;
 	unsigned int i, j;
-	int len = 0;
-	off_t begin = 0;
-	off_t pos = 0;
-	int size;
 	__u32 cur_jifs = jiffies;
 
-	size = sprintf(buf, "Dev TimeOpen   BytesOut  IdleOut    BytesIn   "
+	seq_puts(m, "Dev TimeOpen   BytesOut  IdleOut    BytesIn   "
 			"IdleIn  Overruns  Ldisc\n");
 
-	pos += size;
-	len += size;
-
 	/* Output one line for each known port */
 	for (i = 0; i < NR_CARDS; i++)
 		for (j = 0; j < cy_card[i].nports; j++) {
 			info = &cy_card[i].ports[j];
 
 			if (info->port.count)
-				size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
+				seq_printf(m, "%3d %8lu %10lu %8lu "
 					"%10lu %8lu %9lu %6ld\n", info->line,
 					(cur_jifs - info->idle_stats.in_use) /
 					HZ, info->idle_stats.xmit_bytes,
@@ -5251,30 +5242,26 @@ cyclades_get_proc_info(char *buf, char **start, off_t offset, int length,
 					/* FIXME: double check locking */
 					(long)info->port.tty->ldisc.ops->num);
 			else
-				size = sprintf(buf + len, "%3d %8lu %10lu %8lu "
+				seq_printf(m, "%3d %8lu %10lu %8lu "
 					"%10lu %8lu %9lu %6ld\n",
 					info->line, 0L, 0L, 0L, 0L, 0L, 0L, 0L);
-			len += size;
-			pos = begin + len;
-
-			if (pos < offset) {
-				len = 0;
-				begin = pos;
-			}
-			if (pos > offset + length)
-				goto done;
 		}
-	*eof = 1;
-done:
-	*start = buf + (offset - begin);	/* Start of wanted data */
-	len -= (offset - begin);	/* Start slop */
-	if (len > length)
-		len = length;	/* Ending slop */
-	if (len < 0)
-		len = 0;
-	return len;
+	return 0;
+}
+
+static int cyclades_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, cyclades_proc_show, NULL);
 }
 
+static const struct file_operations cyclades_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= cyclades_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /* The serial driver boot-time initialization code!
     Hardware I/O ports are mapped to character special devices on a
     first found, first allocated manner.  That is, this code searches
@@ -5311,9 +5298,9 @@ static const struct tty_operations cy_ops = {
 	.hangup = cy_hangup,
 	.break_ctl = cy_break,
 	.wait_until_sent = cy_wait_until_sent,
-	.read_proc = cyclades_get_proc_info,
 	.tiocmget = cy_tiocmget,
 	.tiocmset = cy_tiocmset,
+	.proc_fops = &cyclades_proc_fops,
 };
 
 static int __init cy_init(void)
@@ -5422,3 +5409,4 @@ module_exit(cy_cleanup_module);
 
 MODULE_LICENSE("GPL");
 MODULE_VERSION(CY_VERSION);
+MODULE_ALIAS_CHARDEV_MAJOR(CYCLADES_MAJOR);
diff --git a/drivers/char/esp.c b/drivers/char/esp.c
index 45ec263..a5c59fc 100644
--- a/drivers/char/esp.c
+++ b/drivers/char/esp.c
@@ -2258,7 +2258,7 @@ static int esp_open(struct tty_struct *tty, struct file *filp)
  * driver.
  */
 
-static void show_serial_version(void)
+static void __init show_serial_version(void)
 {
 	printk(KERN_INFO "%s version %s (DMA %u)\n",
 		serial_name, serial_version, dma);
diff --git a/drivers/char/hpet.c b/drivers/char/hpet.c
index 32b8bbf..340ba4f 100644
--- a/drivers/char/hpet.c
+++ b/drivers/char/hpet.c
@@ -72,7 +72,7 @@ static u32 hpet_nhpet, hpet_max_freq = HPET_USER_FREQ;
 #ifdef CONFIG_IA64
 static void __iomem *hpet_mctr;
 
-static cycle_t read_hpet(void)
+static cycle_t read_hpet(struct clocksource *cs)
 {
 	return (cycle_t)read_counter((void __iomem *)hpet_mctr);
 }
@@ -713,7 +713,7 @@ static struct ctl_table_header *sysctl_header;
  */
 #define	TICK_CALIBRATE	(1000UL)
 
-static unsigned long hpet_calibrate(struct hpets *hpetp)
+static unsigned long __hpet_calibrate(struct hpets *hpetp)
 {
 	struct hpet_timer __iomem *timer = NULL;
 	unsigned long t, m, count, i, flags, start;
@@ -750,6 +750,26 @@ static unsigned long hpet_calibrate(struct hpets *hpetp)
 	return (m - start) / i;
 }
 
+static unsigned long hpet_calibrate(struct hpets *hpetp)
+{
+	unsigned long ret = -1;
+	unsigned long tmp;
+
+	/*
+	 * Try to calibrate until return value becomes stable small value.
+	 * If SMI interruption occurs in calibration loop, the return value
+	 * will be big. This avoids its impact.
+	 */
+	for ( ; ; ) {
+		tmp = __hpet_calibrate(hpetp);
+		if (ret <= tmp)
+			break;
+		ret = tmp;
+	}
+
+	return ret;
+}
+
 int hpet_alloc(struct hpet_data *hdp)
 {
 	u64 cap, mcfg;
diff --git a/drivers/char/hvc_iucv.c b/drivers/char/hvc_iucv.c
index a534968..54481a8 100644
--- a/drivers/char/hvc_iucv.c
+++ b/drivers/char/hvc_iucv.c
@@ -13,10 +13,11 @@
 
 #include <linux/types.h>
 #include <asm/ebcdic.h>
+#include <linux/ctype.h>
 #include <linux/delay.h>
 #include <linux/init.h>
 #include <linux/mempool.h>
-#include <linux/module.h>
+#include <linux/moduleparam.h>
 #include <linux/tty.h>
 #include <linux/wait.h>
 #include <net/iucv/iucv.h>
@@ -95,6 +96,12 @@ static unsigned long hvc_iucv_devices = 1;
 /* Array of allocated hvc iucv tty lines... */
 static struct hvc_iucv_private *hvc_iucv_table[MAX_HVC_IUCV_LINES];
 #define IUCV_HVC_CON_IDX	(0)
+/* List of z/VM user ID filter entries (struct iucv_vmid_filter) */
+#define MAX_VMID_FILTER		(500)
+static size_t hvc_iucv_filter_size;
+static void *hvc_iucv_filter;
+static const char *hvc_iucv_filter_string;
+static DEFINE_RWLOCK(hvc_iucv_filter_lock);
 
 /* Kmem cache and mempool for iucv_tty_buffer elements */
 static struct kmem_cache *hvc_iucv_buffer_cache;
@@ -618,6 +625,27 @@ static void hvc_iucv_notifier_del(struct hvc_struct *hp, int id)
 }
 
 /**
+ * hvc_iucv_filter_connreq() - Filter connection request based on z/VM user ID
+ * @ipvmid:	Originating z/VM user ID (right padded with blanks)
+ *
+ * Returns 0 if the z/VM user ID @ipvmid is allowed to connection, otherwise
+ * non-zero.
+ */
+static int hvc_iucv_filter_connreq(u8 ipvmid[8])
+{
+	size_t i;
+
+	/* Note: default policy is ACCEPT if no filter is set */
+	if (!hvc_iucv_filter_size)
+		return 0;
+
+	for (i = 0; i < hvc_iucv_filter_size; i++)
+		if (0 == memcmp(ipvmid, hvc_iucv_filter + (8 * i), 8))
+			return 0;
+	return 1;
+}
+
+/**
  * hvc_iucv_path_pending() - IUCV handler to process a connection request.
  * @path:	Pending path (struct iucv_path)
  * @ipvmid:	z/VM system identifier of originator
@@ -641,6 +669,7 @@ static	int hvc_iucv_path_pending(struct iucv_path *path,
 {
 	struct hvc_iucv_private *priv;
 	u8 nuser_data[16];
+	u8 vm_user_id[9];
 	int i, rc;
 
 	priv = NULL;
@@ -653,6 +682,20 @@ static	int hvc_iucv_path_pending(struct iucv_path *path,
 	if (!priv)
 		return -ENODEV;
 
+	/* Enforce that ipvmid is allowed to connect to us */
+	read_lock(&hvc_iucv_filter_lock);
+	rc = hvc_iucv_filter_connreq(ipvmid);
+	read_unlock(&hvc_iucv_filter_lock);
+	if (rc) {
+		iucv_path_sever(path, ipuser);
+		iucv_path_free(path);
+		memcpy(vm_user_id, ipvmid, 8);
+		vm_user_id[8] = 0;
+		pr_info("A connection request from z/VM user ID %s "
+			"was refused\n", vm_user_id);
+		return 0;
+	}
+
 	spin_lock(&priv->lock);
 
 	/* If the terminal is already connected or being severed, then sever
@@ -877,6 +920,171 @@ static int __init hvc_iucv_alloc(int id, unsigned int is_console)
 }
 
 /**
+ * hvc_iucv_parse_filter() - Parse filter for a single z/VM user ID
+ * @filter:	String containing a comma-separated list of z/VM user IDs
+ */
+static const char *hvc_iucv_parse_filter(const char *filter, char *dest)
+{
+	const char *nextdelim, *residual;
+	size_t len;
+
+	nextdelim = strchr(filter, ',');
+	if (nextdelim) {
+		len = nextdelim - filter;
+		residual = nextdelim + 1;
+	} else {
+		len = strlen(filter);
+		residual = filter + len;
+	}
+
+	if (len == 0)
+		return ERR_PTR(-EINVAL);
+
+	/* check for '\n' (if called from sysfs) */
+	if (filter[len - 1] == '\n')
+		len--;
+
+	if (len > 8)
+		return ERR_PTR(-EINVAL);
+
+	/* pad with blanks and save upper case version of user ID */
+	memset(dest, ' ', 8);
+	while (len--)
+		dest[len] = toupper(filter[len]);
+	return residual;
+}
+
+/**
+ * hvc_iucv_setup_filter() - Set up z/VM user ID filter
+ * @filter:	String consisting of a comma-separated list of z/VM user IDs
+ *
+ * The function parses the @filter string and creates an array containing
+ * the list of z/VM user ID filter entries.
+ * Return code 0 means success, -EINVAL if the filter is syntactically
+ * incorrect, -ENOMEM if there was not enough memory to allocate the
+ * filter list array, or -ENOSPC if too many z/VM user IDs have been specified.
+ */
+static int hvc_iucv_setup_filter(const char *val)
+{
+	const char *residual;
+	int err;
+	size_t size, count;
+	void *array, *old_filter;
+
+	count = strlen(val);
+	if (count == 0 || (count == 1 && val[0] == '\n')) {
+		size  = 0;
+		array = NULL;
+		goto out_replace_filter;	/* clear filter */
+	}
+
+	/* count user IDs in order to allocate sufficient memory */
+	size = 1;
+	residual = val;
+	while ((residual = strchr(residual, ',')) != NULL) {
+		residual++;
+		size++;
+	}
+
+	/* check if the specified list exceeds the filter limit */
+	if (size > MAX_VMID_FILTER)
+		return -ENOSPC;
+
+	array = kzalloc(size * 8, GFP_KERNEL);
+	if (!array)
+		return -ENOMEM;
+
+	count = size;
+	residual = val;
+	while (*residual && count) {
+		residual = hvc_iucv_parse_filter(residual,
+						 array + ((size - count) * 8));
+		if (IS_ERR(residual)) {
+			err = PTR_ERR(residual);
+			kfree(array);
+			goto out_err;
+		}
+		count--;
+	}
+
+out_replace_filter:
+	write_lock_bh(&hvc_iucv_filter_lock);
+	old_filter = hvc_iucv_filter;
+	hvc_iucv_filter_size = size;
+	hvc_iucv_filter = array;
+	write_unlock_bh(&hvc_iucv_filter_lock);
+	kfree(old_filter);
+
+	err = 0;
+out_err:
+	return err;
+}
+
+/**
+ * param_set_vmidfilter() - Set z/VM user ID filter parameter
+ * @val:	String consisting of a comma-separated list of z/VM user IDs
+ * @kp:		Kernel parameter pointing to hvc_iucv_filter array
+ *
+ * The function sets up the z/VM user ID filter specified as comma-separated
+ * list of user IDs in @val.
+ * Note: If it is called early in the boot process, @val is stored and
+ *	 parsed later in hvc_iucv_init().
+ */
+static int param_set_vmidfilter(const char *val, struct kernel_param *kp)
+{
+	int rc;
+
+	if (!MACHINE_IS_VM || !hvc_iucv_devices)
+		return -ENODEV;
+
+	if (!val)
+		return -EINVAL;
+
+	rc = 0;
+	if (slab_is_available())
+		rc = hvc_iucv_setup_filter(val);
+	else
+		hvc_iucv_filter_string = val;	/* defer... */
+	return rc;
+}
+
+/**
+ * param_get_vmidfilter() - Get z/VM user ID filter
+ * @buffer:	Buffer to store z/VM user ID filter,
+ *		(buffer size assumption PAGE_SIZE)
+ * @kp:		Kernel parameter pointing to the hvc_iucv_filter array
+ *
+ * The function stores the filter as a comma-separated list of z/VM user IDs
+ * in @buffer. Typically, sysfs routines call this function for attr show.
+ */
+static int param_get_vmidfilter(char *buffer, struct kernel_param *kp)
+{
+	int rc;
+	size_t index, len;
+	void *start, *end;
+
+	if (!MACHINE_IS_VM || !hvc_iucv_devices)
+		return -ENODEV;
+
+	rc = 0;
+	read_lock_bh(&hvc_iucv_filter_lock);
+	for (index = 0; index < hvc_iucv_filter_size; index++) {
+		start = hvc_iucv_filter + (8 * index);
+		end   = memchr(start, ' ', 8);
+		len   = (end) ? end - start : 8;
+		memcpy(buffer + rc, start, len);
+		rc += len;
+		buffer[rc++] = ',';
+	}
+	read_unlock_bh(&hvc_iucv_filter_lock);
+	if (rc)
+		buffer[--rc] = '\0';	/* replace last comma and update rc */
+	return rc;
+}
+
+#define param_check_vmidfilter(name, p) __param_check(name, p, void)
+
+/**
  * hvc_iucv_init() - z/VM IUCV HVC device driver initialization
  */
 static int __init hvc_iucv_init(void)
@@ -884,24 +1092,53 @@ static int __init hvc_iucv_init(void)
 	int rc;
 	unsigned int i;
 
+	if (!hvc_iucv_devices)
+		return -ENODEV;
+
 	if (!MACHINE_IS_VM) {
-		pr_info("The z/VM IUCV HVC device driver cannot "
+		pr_notice("The z/VM IUCV HVC device driver cannot "
 			   "be used without z/VM\n");
-		return -ENODEV;
+		rc = -ENODEV;
+		goto out_error;
 	}
 
-	if (!hvc_iucv_devices)
-		return -ENODEV;
+	if (hvc_iucv_devices > MAX_HVC_IUCV_LINES) {
+		pr_err("%lu is not a valid value for the hvc_iucv= "
+			"kernel parameter\n", hvc_iucv_devices);
+		rc = -EINVAL;
+		goto out_error;
+	}
 
-	if (hvc_iucv_devices > MAX_HVC_IUCV_LINES)
-		return -EINVAL;
+	/* parse hvc_iucv_allow string and create z/VM user ID filter list */
+	if (hvc_iucv_filter_string) {
+		rc = hvc_iucv_setup_filter(hvc_iucv_filter_string);
+		switch (rc) {
+		case 0:
+			break;
+		case -ENOMEM:
+			pr_err("Allocating memory failed with "
+				"reason code=%d\n", 3);
+			goto out_error;
+		case -EINVAL:
+			pr_err("hvc_iucv_allow= does not specify a valid "
+				"z/VM user ID list\n");
+			goto out_error;
+		case -ENOSPC:
+			pr_err("hvc_iucv_allow= specifies too many "
+				"z/VM user IDs\n");
+			goto out_error;
+		default:
+			goto out_error;
+		}
+	}
 
 	hvc_iucv_buffer_cache = kmem_cache_create(KMSG_COMPONENT,
 					   sizeof(struct iucv_tty_buffer),
 					   0, 0, NULL);
 	if (!hvc_iucv_buffer_cache) {
 		pr_err("Allocating memory failed with reason code=%d\n", 1);
-		return -ENOMEM;
+		rc = -ENOMEM;
+		goto out_error;
 	}
 
 	hvc_iucv_mempool = mempool_create_slab_pool(MEMPOOL_MIN_NR,
@@ -909,7 +1146,8 @@ static int __init hvc_iucv_init(void)
 	if (!hvc_iucv_mempool) {
 		pr_err("Allocating memory failed with reason code=%d\n", 2);
 		kmem_cache_destroy(hvc_iucv_buffer_cache);
-		return -ENOMEM;
+		rc = -ENOMEM;
+		goto out_error;
 	}
 
 	/* register the first terminal device as console
@@ -953,6 +1191,8 @@ out_error_hvc:
 out_error_memory:
 	mempool_destroy(hvc_iucv_mempool);
 	kmem_cache_destroy(hvc_iucv_buffer_cache);
+out_error:
+	hvc_iucv_devices = 0; /* ensure that we do not provide any device */
 	return rc;
 }
 
@@ -968,3 +1208,4 @@ static	int __init hvc_iucv_config(char *val)
 
 device_initcall(hvc_iucv_init);
 __setup("hvc_iucv=", hvc_iucv_config);
+core_param(hvc_iucv_allow, hvc_iucv_filter, vmidfilter, 0640);
diff --git a/drivers/char/hvcs.c b/drivers/char/hvcs.c
index 6e6eb44..c76bccf 100644
--- a/drivers/char/hvcs.c
+++ b/drivers/char/hvcs.c
@@ -1139,15 +1139,6 @@ static int hvcs_open(struct tty_struct *tty, struct file *filp)
 	hvcsd->tty = tty;
 	tty->driver_data = hvcsd;
 
-	/*
-	 * Set this driver to low latency so that we actually have a chance at
-	 * catching a throttled TTY after we flip_buffer_push.  Otherwise the
-	 * flush_to_async may not execute until after the kernel_thread has
-	 * yielded and resumed the next flip_buffer_push resulting in data
-	 * loss.
-	 */
-	tty->low_latency = 1;
-
 	memset(&hvcsd->buffer[0], 0x00, HVCS_BUFF_LEN);
 
 	/*
diff --git a/drivers/char/hvsi.c b/drivers/char/hvsi.c
index 406f874..2989056 100644
--- a/drivers/char/hvsi.c
+++ b/drivers/char/hvsi.c
@@ -810,7 +810,6 @@ static int hvsi_open(struct tty_struct *tty, struct file *filp)
 	hp = &hvsi_ports[line];
 
 	tty->driver_data = hp;
-	tty->low_latency = 1; /* avoid throttle/tty_flip_buffer_push race */
 
 	mb();
 	if (hp->state == HVSI_FSP_DIED)
diff --git a/drivers/char/hw_random/Kconfig b/drivers/char/hw_random/Kconfig
index 8822eca..5fab647 100644
--- a/drivers/char/hw_random/Kconfig
+++ b/drivers/char/hw_random/Kconfig
@@ -20,6 +20,20 @@ config HW_RANDOM
 
 	  If unsure, say Y.
 
+config HW_RANDOM_TIMERIOMEM
+	tristate "Timer IOMEM HW Random Number Generator support"
+	depends on HW_RANDOM && HAS_IOMEM
+	---help---
+	  This driver provides kernel-side support for a generic Random
+	  Number Generator used by reading a 'dumb' iomem address that
+	  is to be read no faster than, for example, once a second;
+	  the default FPGA bitstream on the TS-7800 has such functionality.
+
+	  To compile this driver as a module, choose M here: the
+	  module will be called timeriomem-rng.
+
+	  If unsure, say Y.
+
 config HW_RANDOM_INTEL
 	tristate "Intel HW Random Number Generator support"
 	depends on HW_RANDOM && (X86 || IA64) && PCI
diff --git a/drivers/char/hw_random/Makefile b/drivers/char/hw_random/Makefile
index b6effb7..e81d21a 100644
--- a/drivers/char/hw_random/Makefile
+++ b/drivers/char/hw_random/Makefile
@@ -4,6 +4,7 @@
 
 obj-$(CONFIG_HW_RANDOM) += rng-core.o
 rng-core-y := core.o
+obj-$(CONFIG_HW_RANDOM_TIMERIOMEM) += timeriomem-rng.o
 obj-$(CONFIG_HW_RANDOM_INTEL) += intel-rng.o
 obj-$(CONFIG_HW_RANDOM_AMD) += amd-rng.o
 obj-$(CONFIG_HW_RANDOM_GEODE) += geode-rng.o
diff --git a/drivers/char/hw_random/omap-rng.c b/drivers/char/hw_random/omap-rng.c
index ba68a46..538313f 100644
--- a/drivers/char/hw_random/omap-rng.c
+++ b/drivers/char/hw_random/omap-rng.c
@@ -102,7 +102,7 @@ static int __init omap_rng_probe(struct platform_device *pdev)
 		return -EBUSY;
 
 	if (cpu_is_omap24xx()) {
-		rng_ick = clk_get(&pdev->dev, "rng_ick");
+		rng_ick = clk_get(&pdev->dev, "ick");
 		if (IS_ERR(rng_ick)) {
 			dev_err(&pdev->dev, "Could not get rng_ick\n");
 			ret = PTR_ERR(rng_ick);
diff --git a/drivers/char/hw_random/timeriomem-rng.c b/drivers/char/hw_random/timeriomem-rng.c
new file mode 100644
index 0000000..dcd352a
--- /dev/null
+++ b/drivers/char/hw_random/timeriomem-rng.c
@@ -0,0 +1,182 @@
+/*
+ * drivers/char/hw_random/timeriomem-rng.c
+ *
+ * Copyright (C) 2009 Alexander Clouter <alex@digriz.org.uk>
+ *
+ * Derived from drivers/char/hw_random/omap-rng.c
+ *   Copyright 2005 (c) MontaVista Software, Inc.
+ *   Author: Deepak Saxena <dsaxena@plexity.net>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ * Overview:
+ *   This driver is useful for platforms that have an IO range that provides
+ *   periodic random data from a single IO memory address.  All the platform
+ *   has to do is provide the address and 'wait time' that new data becomes
+ *   available.
+ *
+ * TODO: add support for reading sizes other than 32bits and masking
+ */
+
+#include <linux/module.h>
+#include <linux/kernel.h>
+#include <linux/platform_device.h>
+#include <linux/hw_random.h>
+#include <linux/io.h>
+#include <linux/timeriomem-rng.h>
+#include <linux/jiffies.h>
+#include <linux/sched.h>
+#include <linux/timer.h>
+#include <linux/completion.h>
+
+static struct timeriomem_rng_data *timeriomem_rng_data;
+
+static void timeriomem_rng_trigger(unsigned long);
+static DEFINE_TIMER(timeriomem_rng_timer, timeriomem_rng_trigger, 0, 0);
+
+/*
+ * have data return 1, however return 0 if we have nothing
+ */
+static int timeriomem_rng_data_present(struct hwrng *rng, int wait)
+{
+	if (rng->priv == 0)
+		return 1;
+
+	if (!wait || timeriomem_rng_data->present)
+		return timeriomem_rng_data->present;
+
+	wait_for_completion(&timeriomem_rng_data->completion);
+
+	return 1;
+}
+
+static int timeriomem_rng_data_read(struct hwrng *rng, u32 *data)
+{
+	unsigned long cur;
+	s32 delay;
+
+	*data = readl(timeriomem_rng_data->address);
+
+	if (rng->priv != 0) {
+		cur = jiffies;
+
+		delay = cur - timeriomem_rng_timer.expires;
+		delay = rng->priv - (delay % rng->priv);
+
+		timeriomem_rng_timer.expires = cur + delay;
+		timeriomem_rng_data->present = 0;
+
+		init_completion(&timeriomem_rng_data->completion);
+		add_timer(&timeriomem_rng_timer);
+	}
+
+	return 4;
+}
+
+static void timeriomem_rng_trigger(unsigned long dummy)
+{
+	timeriomem_rng_data->present = 1;
+	complete(&timeriomem_rng_data->completion);
+}
+
+static struct hwrng timeriomem_rng_ops = {
+	.name		= "timeriomem",
+	.data_present	= timeriomem_rng_data_present,
+	.data_read	= timeriomem_rng_data_read,
+	.priv		= 0,
+};
+
+static int __init timeriomem_rng_probe(struct platform_device *pdev)
+{
+	struct resource *res, *mem;
+	int ret;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	if (!res)
+		return -ENOENT;
+
+	mem = request_mem_region(res->start, res->end - res->start + 1,
+				 pdev->name);
+	if (mem == NULL)
+		return -EBUSY;
+
+	dev_set_drvdata(&pdev->dev, mem);
+
+	timeriomem_rng_data = pdev->dev.platform_data;
+
+	timeriomem_rng_data->address = ioremap(res->start,
+						res->end - res->start + 1);
+	if (!timeriomem_rng_data->address) {
+		ret = -ENOMEM;
+		goto err_ioremap;
+	}
+
+	if (timeriomem_rng_data->period != 0
+		&& usecs_to_jiffies(timeriomem_rng_data->period) > 0) {
+		timeriomem_rng_timer.expires = jiffies;
+
+		timeriomem_rng_ops.priv = usecs_to_jiffies(
+						timeriomem_rng_data->period);
+	}
+	timeriomem_rng_data->present = 1;
+
+	ret = hwrng_register(&timeriomem_rng_ops);
+	if (ret)
+		goto err_register;
+
+	dev_info(&pdev->dev, "32bits from 0x%p @ %dus\n",
+			timeriomem_rng_data->address,
+			timeriomem_rng_data->period);
+
+	return 0;
+
+err_register:
+	dev_err(&pdev->dev, "problem registering\n");
+	iounmap(timeriomem_rng_data->address);
+err_ioremap:
+	release_resource(mem);
+
+	return ret;
+}
+
+static int __devexit timeriomem_rng_remove(struct platform_device *pdev)
+{
+	struct resource *mem = dev_get_drvdata(&pdev->dev);
+
+	del_timer_sync(&timeriomem_rng_timer);
+	hwrng_unregister(&timeriomem_rng_ops);
+
+	iounmap(timeriomem_rng_data->address);
+	release_resource(mem);
+
+	return 0;
+}
+
+static struct platform_driver timeriomem_rng_driver = {
+	.driver = {
+		.name		= "timeriomem_rng",
+		.owner		= THIS_MODULE,
+	},
+	.probe		= timeriomem_rng_probe,
+	.remove		= __devexit_p(timeriomem_rng_remove),
+};
+
+static int __init timeriomem_rng_init(void)
+{
+	return platform_driver_register(&timeriomem_rng_driver);
+}
+
+static void __exit timeriomem_rng_exit(void)
+{
+	platform_driver_unregister(&timeriomem_rng_driver);
+}
+
+module_init(timeriomem_rng_init);
+module_exit(timeriomem_rng_exit);
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Alexander Clouter <alex@digriz.org.uk>");
+MODULE_DESCRIPTION("Timer IOMEM H/W RNG driver");
diff --git a/drivers/char/hw_random/virtio-rng.c b/drivers/char/hw_random/virtio-rng.c
index d0e563e..86e83f8 100644
--- a/drivers/char/hw_random/virtio-rng.c
+++ b/drivers/char/hw_random/virtio-rng.c
@@ -37,9 +37,9 @@ static void random_recv_done(struct virtqueue *vq)
 {
 	int len;
 
-	/* We never get spurious callbacks. */
+	/* We can get spurious callbacks, e.g. shared IRQs + virtio_pci. */
 	if (!vq->vq_ops->get_buf(vq, &len))
-		BUG();
+		return;
 
 	data_left = len / sizeof(random_data[0]);
 	complete(&have_data);
diff --git a/drivers/char/ip2/ip2main.c b/drivers/char/ip2/ip2main.c
index 70e0ebc..afd9247 100644
--- a/drivers/char/ip2/ip2main.c
+++ b/drivers/char/ip2/ip2main.c
@@ -139,7 +139,7 @@
 #include <linux/seq_file.h>
 
 static const struct file_operations ip2mem_proc_fops;
-static int ip2_read_proc(char *, char **, off_t, int, int *, void * );
+static const struct file_operations ip2_proc_fops;
 
 /********************/
 /* Type Definitions */
@@ -446,9 +446,9 @@ static const struct tty_operations ip2_ops = {
 	.stop            = ip2_stop,
 	.start           = ip2_start,
 	.hangup          = ip2_hangup,
-	.read_proc       = ip2_read_proc,
 	.tiocmget	 = ip2_tiocmget,
 	.tiocmset	 = ip2_tiocmset,
+	.proc_fops	 = &ip2_proc_fops,
 };
 
 /******************************************************************************/
@@ -3029,19 +3029,17 @@ static const struct file_operations ip2mem_proc_fops = {
  * different sources including ip2mkdev.c and a couple of other drivers.
  * The bugs are all mine.  :-)	=mhw=
  */
-static int ip2_read_proc(char *page, char **start, off_t off,
-				int count, int *eof, void *data)
+static int ip2_proc_show(struct seq_file *m, void *v)
 {
 	int	i, j, box;
-	int	len = 0;
 	int	boxes = 0;
 	int	ports = 0;
 	int	tports = 0;
-	off_t	begin = 0;
 	i2eBordStrPtr  pB;
+	char *sep;
 
-	len += sprintf(page, "ip2info: 1.0 driver: %s\n", pcVersion );
-	len += sprintf(page+len, "Driver: SMajor=%d CMajor=%d IMajor=%d MaxBoards=%d MaxBoxes=%d MaxPorts=%d\n",
+	seq_printf(m, "ip2info: 1.0 driver: %s\n", pcVersion);
+	seq_printf(m, "Driver: SMajor=%d CMajor=%d IMajor=%d MaxBoards=%d MaxBoxes=%d MaxPorts=%d\n",
 			IP2_TTY_MAJOR, IP2_CALLOUT_MAJOR, IP2_IPL_MAJOR,
 			IP2_MAX_BOARDS, ABS_MAX_BOXES, ABS_BIGGEST_BOX);
 
@@ -3053,7 +3051,8 @@ static int ip2_read_proc(char *page, char **start, off_t off,
 			switch( pB->i2ePom.e.porID & ~POR_ID_RESERVED ) 
 			{
 			case POR_ID_FIIEX:
-				len += sprintf( page+len, "Board %d: EX ports=", i );
+				seq_printf(m, "Board %d: EX ports=", i);
+				sep = "";
 				for( box = 0; box < ABS_MAX_BOXES; ++box )
 				{
 					ports = 0;
@@ -3065,79 +3064,74 @@ static int ip2_read_proc(char *page, char **start, off_t off,
 							++ports;
 						}
 					}
-					len += sprintf( page+len, "%d,", ports );
+					seq_printf(m, "%s%d", sep, ports);
+					sep = ",";
 					tports += ports;
 				}
-
-				--len;	/* Backup over that last comma */
-
-				len += sprintf( page+len, " boxes=%d width=%d", boxes, pB->i2eDataWidth16 ? 16 : 8 );
+				seq_printf(m, " boxes=%d width=%d", boxes, pB->i2eDataWidth16 ? 16 : 8);
 				break;
 
 			case POR_ID_II_4:
-				len += sprintf(page+len, "Board %d: ISA-4 ports=4 boxes=1", i );
+				seq_printf(m, "Board %d: ISA-4 ports=4 boxes=1", i);
 				tports = ports = 4;
 				break;
 
 			case POR_ID_II_8:
-				len += sprintf(page+len, "Board %d: ISA-8-std ports=8 boxes=1", i );
+				seq_printf(m, "Board %d: ISA-8-std ports=8 boxes=1", i);
 				tports = ports = 8;
 				break;
 
 			case POR_ID_II_8R:
-				len += sprintf(page+len, "Board %d: ISA-8-RJ11 ports=8 boxes=1", i );
+				seq_printf(m, "Board %d: ISA-8-RJ11 ports=8 boxes=1", i);
 				tports = ports = 8;
 				break;
 
 			default:
-				len += sprintf(page+len, "Board %d: unknown", i );
+				seq_printf(m, "Board %d: unknown", i);
 				/* Don't try and probe for minor numbers */
 				tports = ports = 0;
 			}
 
 		} else {
 			/* Don't try and probe for minor numbers */
-			len += sprintf(page+len, "Board %d: vacant", i );
+			seq_printf(m, "Board %d: vacant", i);
 			tports = ports = 0;
 		}
 
 		if( tports ) {
-			len += sprintf(page+len, " minors=" );
-
+			seq_puts(m, " minors=");
+			sep = "";
 			for ( box = 0; box < ABS_MAX_BOXES; ++box )
 			{
 				for ( j = 0; j < ABS_BIGGEST_BOX; ++j )
 				{
 					if ( pB->i2eChannelMap[box] & (1 << j) )
 					{
-						len += sprintf (page+len,"%d,",
+						seq_printf(m, "%s%d", sep,
 							j + ABS_BIGGEST_BOX *
 							(box+i*ABS_MAX_BOXES));
+						sep = ",";
 					}
 				}
 			}
-
-			page[ len - 1 ] = '\n';	/* Overwrite that last comma */
-		} else {
-			len += sprintf (page+len,"\n" );
-		}
-
-		if (len+begin > off+count)
-			break;
-		if (len+begin < off) {
-			begin += len;
-			len = 0;
 		}
+		seq_putc(m, '\n');
 	}
+	return 0;
+ }
 
-	if (i >= IP2_MAX_BOARDS)
-		*eof = 1;
-	if (off >= len+begin)
-		return 0;
+static int ip2_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, ip2_proc_show, NULL);
+}
 
-	*start = page + (off-begin);
-	return ((count < begin+len-off) ? count : begin+len-off);
- }
+static const struct file_operations ip2_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= ip2_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
  
 /******************************************************************************/
 /* Function:   ip2trace()                                                     */
diff --git a/drivers/char/ipmi/ipmi_msghandler.c b/drivers/char/ipmi/ipmi_msghandler.c
index 7a88dfd..aa83a08 100644
--- a/drivers/char/ipmi/ipmi_msghandler.c
+++ b/drivers/char/ipmi/ipmi_msghandler.c
@@ -285,6 +285,11 @@ enum ipmi_stat_indexes {
 	/* Events that were received with the proper format. */
 	IPMI_STAT_events,
 
+	/* Retransmissions on IPMB that failed. */
+	IPMI_STAT_dropped_rexmit_ipmb_commands,
+
+	/* Retransmissions on LAN that failed. */
+	IPMI_STAT_dropped_rexmit_lan_commands,
 
 	/* This *must* remain last, add new values above this. */
 	IPMI_NUM_STATS
@@ -445,6 +450,20 @@ static DEFINE_MUTEX(smi_watchers_mutex);
 #define ipmi_get_stat(intf, stat) \
 	((unsigned int) atomic_read(&(intf)->stats[IPMI_STAT_ ## stat]))
 
+static int is_lan_addr(struct ipmi_addr *addr)
+{
+	return addr->addr_type == IPMI_LAN_ADDR_TYPE;
+}
+
+static int is_ipmb_addr(struct ipmi_addr *addr)
+{
+	return addr->addr_type == IPMI_IPMB_ADDR_TYPE;
+}
+
+static int is_ipmb_bcast_addr(struct ipmi_addr *addr)
+{
+	return addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE;
+}
 
 static void free_recv_msg_list(struct list_head *q)
 {
@@ -601,8 +620,7 @@ ipmi_addr_equal(struct ipmi_addr *addr1, struct ipmi_addr *addr2)
 		return (smi_addr1->lun == smi_addr2->lun);
 	}
 
-	if ((addr1->addr_type == IPMI_IPMB_ADDR_TYPE)
-	    || (addr1->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE)) {
+	if (is_ipmb_addr(addr1) || is_ipmb_bcast_addr(addr1)) {
 		struct ipmi_ipmb_addr *ipmb_addr1
 		    = (struct ipmi_ipmb_addr *) addr1;
 		struct ipmi_ipmb_addr *ipmb_addr2
@@ -612,7 +630,7 @@ ipmi_addr_equal(struct ipmi_addr *addr1, struct ipmi_addr *addr2)
 			&& (ipmb_addr1->lun == ipmb_addr2->lun));
 	}
 
-	if (addr1->addr_type == IPMI_LAN_ADDR_TYPE) {
+	if (is_lan_addr(addr1)) {
 		struct ipmi_lan_addr *lan_addr1
 			= (struct ipmi_lan_addr *) addr1;
 		struct ipmi_lan_addr *lan_addr2
@@ -644,14 +662,13 @@ int ipmi_validate_addr(struct ipmi_addr *addr, int len)
 	    || (addr->channel < 0))
 		return -EINVAL;
 
-	if ((addr->addr_type == IPMI_IPMB_ADDR_TYPE)
-	    || (addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE)) {
+	if (is_ipmb_addr(addr) || is_ipmb_bcast_addr(addr)) {
 		if (len < sizeof(struct ipmi_ipmb_addr))
 			return -EINVAL;
 		return 0;
 	}
 
-	if (addr->addr_type == IPMI_LAN_ADDR_TYPE) {
+	if (is_lan_addr(addr)) {
 		if (len < sizeof(struct ipmi_lan_addr))
 			return -EINVAL;
 		return 0;
@@ -1503,8 +1520,7 @@ static int i_ipmi_request(ipmi_user_t          user,
 			memcpy(&(smi_msg->data[2]), msg->data, msg->data_len);
 		smi_msg->data_size = msg->data_len + 2;
 		ipmi_inc_stat(intf, sent_local_commands);
-	} else if ((addr->addr_type == IPMI_IPMB_ADDR_TYPE)
-		   || (addr->addr_type == IPMI_IPMB_BROADCAST_ADDR_TYPE)) {
+	} else if (is_ipmb_addr(addr) || is_ipmb_bcast_addr(addr)) {
 		struct ipmi_ipmb_addr *ipmb_addr;
 		unsigned char         ipmb_seq;
 		long                  seqid;
@@ -1583,8 +1599,6 @@ static int i_ipmi_request(ipmi_user_t          user,
 
 			spin_lock_irqsave(&(intf->seq_lock), flags);
 
-			ipmi_inc_stat(intf, sent_ipmb_commands);
-
 			/*
 			 * Create a sequence number with a 1 second
 			 * timeout and 4 retries.
@@ -1606,6 +1620,8 @@ static int i_ipmi_request(ipmi_user_t          user,
 				goto out_err;
 			}
 
+			ipmi_inc_stat(intf, sent_ipmb_commands);
+
 			/*
 			 * Store the sequence number in the message,
 			 * so that when the send message response
@@ -1635,7 +1651,7 @@ static int i_ipmi_request(ipmi_user_t          user,
 			 */
 			spin_unlock_irqrestore(&(intf->seq_lock), flags);
 		}
-	} else if (addr->addr_type == IPMI_LAN_ADDR_TYPE) {
+	} else if (is_lan_addr(addr)) {
 		struct ipmi_lan_addr  *lan_addr;
 		unsigned char         ipmb_seq;
 		long                  seqid;
@@ -1696,8 +1712,6 @@ static int i_ipmi_request(ipmi_user_t          user,
 
 			spin_lock_irqsave(&(intf->seq_lock), flags);
 
-			ipmi_inc_stat(intf, sent_lan_commands);
-
 			/*
 			 * Create a sequence number with a 1 second
 			 * timeout and 4 retries.
@@ -1719,6 +1733,8 @@ static int i_ipmi_request(ipmi_user_t          user,
 				goto out_err;
 			}
 
+			ipmi_inc_stat(intf, sent_lan_commands);
+
 			/*
 			 * Store the sequence number in the message,
 			 * so that when the send message response
@@ -1937,6 +1953,10 @@ static int stat_file_read_proc(char *page, char **start, off_t off,
 		       ipmi_get_stat(intf, invalid_events));
 	out += sprintf(out, "events:                      %u\n",
 		       ipmi_get_stat(intf, events));
+	out += sprintf(out, "failed rexmit LAN msgs:      %u\n",
+		       ipmi_get_stat(intf, dropped_rexmit_lan_commands));
+	out += sprintf(out, "failed rexmit IPMB msgs:     %u\n",
+		       ipmi_get_stat(intf, dropped_rexmit_ipmb_commands));
 
 	return (out - ((char *) page));
 }
@@ -1944,7 +1964,7 @@ static int stat_file_read_proc(char *page, char **start, off_t off,
 
 int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
 			    read_proc_t *read_proc,
-			    void *data, struct module *owner)
+			    void *data)
 {
 	int                    rv = 0;
 #ifdef CONFIG_PROC_FS
@@ -1970,7 +1990,6 @@ int ipmi_smi_add_proc_entry(ipmi_smi_t smi, char *name,
 	} else {
 		file->data = data;
 		file->read_proc = read_proc;
-		file->owner = owner;
 
 		mutex_lock(&smi->proc_entry_lock);
 		/* Stick it on the list. */
@@ -1993,23 +2012,21 @@ static int add_proc_entries(ipmi_smi_t smi, int num)
 	smi->proc_dir = proc_mkdir(smi->proc_dir_name, proc_ipmi_root);
 	if (!smi->proc_dir)
 		rv = -ENOMEM;
-	else
-		smi->proc_dir->owner = THIS_MODULE;
 
 	if (rv == 0)
 		rv = ipmi_smi_add_proc_entry(smi, "stats",
 					     stat_file_read_proc,
-					     smi, THIS_MODULE);
+					     smi);
 
 	if (rv == 0)
 		rv = ipmi_smi_add_proc_entry(smi, "ipmb",
 					     ipmb_file_read_proc,
-					     smi, THIS_MODULE);
+					     smi);
 
 	if (rv == 0)
 		rv = ipmi_smi_add_proc_entry(smi, "version",
 					     version_file_read_proc,
-					     smi, THIS_MODULE);
+					     smi);
 #endif /* CONFIG_PROC_FS */
 
 	return rv;
@@ -3267,6 +3284,114 @@ static int handle_lan_get_msg_cmd(ipmi_smi_t          intf,
 	return rv;
 }
 
+/*
+ * This routine will handle "Get Message" command responses with
+ * channels that use an OEM Medium. The message format belongs to
+ * the OEM.  See IPMI 2.0 specification, Chapter 6 and
+ * Chapter 22, sections 22.6 and 22.24 for more details.
+ */
+static int handle_oem_get_msg_cmd(ipmi_smi_t          intf,
+				  struct ipmi_smi_msg *msg)
+{
+	struct cmd_rcvr       *rcvr;
+	int                   rv = 0;
+	unsigned char         netfn;
+	unsigned char         cmd;
+	unsigned char         chan;
+	ipmi_user_t           user = NULL;
+	struct ipmi_system_interface_addr *smi_addr;
+	struct ipmi_recv_msg  *recv_msg;
+
+	/*
+	 * We expect the OEM SW to perform error checking
+	 * so we just do some basic sanity checks
+	 */
+	if (msg->rsp_size < 4) {
+		/* Message not big enough, just ignore it. */
+		ipmi_inc_stat(intf, invalid_commands);
+		return 0;
+	}
+
+	if (msg->rsp[2] != 0) {
+		/* An error getting the response, just ignore it. */
+		return 0;
+	}
+
+	/*
+	 * This is an OEM Message so the OEM needs to know how
+	 * handle the message. We do no interpretation.
+	 */
+	netfn = msg->rsp[0] >> 2;
+	cmd = msg->rsp[1];
+	chan = msg->rsp[3] & 0xf;
+
+	rcu_read_lock();
+	rcvr = find_cmd_rcvr(intf, netfn, cmd, chan);
+	if (rcvr) {
+		user = rcvr->user;
+		kref_get(&user->refcount);
+	} else
+		user = NULL;
+	rcu_read_unlock();
+
+	if (user == NULL) {
+		/* We didn't find a user, just give up. */
+		ipmi_inc_stat(intf, unhandled_commands);
+
+		/*
+		 * Don't do anything with these messages, just allow
+		 * them to be freed.
+		 */
+
+		rv = 0;
+	} else {
+		/* Deliver the message to the user. */
+		ipmi_inc_stat(intf, handled_commands);
+
+		recv_msg = ipmi_alloc_recv_msg();
+		if (!recv_msg) {
+			/*
+			 * We couldn't allocate memory for the
+			 * message, so requeue it for handling
+			 * later.
+			 */
+			rv = 1;
+			kref_put(&user->refcount, free_user);
+		} else {
+			/*
+			 * OEM Messages are expected to be delivered via
+			 * the system interface to SMS software.  We might
+			 * need to visit this again depending on OEM
+			 * requirements
+			 */
+			smi_addr = ((struct ipmi_system_interface_addr *)
+				    &(recv_msg->addr));
+			smi_addr->addr_type = IPMI_SYSTEM_INTERFACE_ADDR_TYPE;
+			smi_addr->channel = IPMI_BMC_CHANNEL;
+			smi_addr->lun = msg->rsp[0] & 3;
+
+			recv_msg->user = user;
+			recv_msg->user_msg_data = NULL;
+			recv_msg->recv_type = IPMI_OEM_RECV_TYPE;
+			recv_msg->msg.netfn = msg->rsp[0] >> 2;
+			recv_msg->msg.cmd = msg->rsp[1];
+			recv_msg->msg.data = recv_msg->msg_data;
+
+			/*
+			 * The message starts at byte 4 which follows the
+			 * the Channel Byte in the "GET MESSAGE" command
+			 */
+			recv_msg->msg.data_len = msg->rsp_size - 4;
+			memcpy(recv_msg->msg_data,
+			       &(msg->rsp[4]),
+			       msg->rsp_size - 4);
+			deliver_response(recv_msg);
+		}
+	}
+
+	return rv;
+}
+
 static void copy_event_into_recv_msg(struct ipmi_recv_msg *recv_msg,
 				     struct ipmi_smi_msg  *msg)
 {
@@ -3522,6 +3647,17 @@ static int handle_new_recv_msg(ipmi_smi_t          intf,
 			goto out;
 		}
 
+		/*
+		** We need to make sure the channels have been initialized.
+		** The channel_handler routine will set the "curr_channel"
+		** equal to or greater than IPMI_MAX_CHANNELS when all the
+		** channels for this interface have been initialized.
+		*/
+		if (intf->curr_channel < IPMI_MAX_CHANNELS) {
+			requeue = 1;     /* Just put the message back for now */
+			goto out;
+		}
+
 		switch (intf->channels[chan].medium) {
 		case IPMI_CHANNEL_MEDIUM_IPMB:
 			if (msg->rsp[4] & 0x04) {
@@ -3557,11 +3693,20 @@ static int handle_new_recv_msg(ipmi_smi_t          intf,
 			break;
 
 		default:
-			/*
-			 * We don't handle the channel type, so just
-			 * free the message.
-			 */
-			requeue = 0;
+			/* Check for OEM Channels.  Clients had better
+			   register for these commands. */
+			if ((intf->channels[chan].medium
+			     >= IPMI_CHANNEL_MEDIUM_OEM_MIN)
+			    && (intf->channels[chan].medium
+				<= IPMI_CHANNEL_MEDIUM_OEM_MAX)) {
+				requeue = handle_oem_get_msg_cmd(intf, msg);
+			} else {
+				/*
+				 * We don't handle the channel type, so just
+				 * free the message.
+				 */
+				requeue = 0;
+			}
 		}
 
 	} else if ((msg->rsp[0] == ((IPMI_NETFN_APP_REQUEST|1) << 2))
@@ -3733,7 +3878,7 @@ static void check_msg_timeout(ipmi_smi_t intf, struct seq_table *ent,
 		list_add_tail(&msg->link, timeouts);
 		if (ent->broadcast)
 			ipmi_inc_stat(intf, timed_out_ipmb_broadcasts);
-		else if (ent->recv_msg->addr.addr_type == IPMI_LAN_ADDR_TYPE)
+		else if (is_lan_addr(&ent->recv_msg->addr))
 			ipmi_inc_stat(intf, timed_out_lan_commands);
 		else
 			ipmi_inc_stat(intf, timed_out_ipmb_commands);
@@ -3747,15 +3892,17 @@ static void check_msg_timeout(ipmi_smi_t intf, struct seq_table *ent,
 		 */
 		ent->timeout = MAX_MSG_TIMEOUT;
 		ent->retries_left--;
-		if (ent->recv_msg->addr.addr_type == IPMI_LAN_ADDR_TYPE)
-			ipmi_inc_stat(intf, retransmitted_lan_commands);
-		else
-			ipmi_inc_stat(intf, retransmitted_ipmb_commands);
-
 		smi_msg = smi_from_recv_msg(intf, ent->recv_msg, slot,
 					    ent->seqid);
-		if (!smi_msg)
+		if (!smi_msg) {
+			if (is_lan_addr(&ent->recv_msg->addr))
+				ipmi_inc_stat(intf,
+					      dropped_rexmit_lan_commands);
+			else
+				ipmi_inc_stat(intf,
+					      dropped_rexmit_ipmb_commands);
 			return;
+		}
 
 		spin_unlock_irqrestore(&intf->seq_lock, *flags);
 
@@ -3767,10 +3914,17 @@ static void check_msg_timeout(ipmi_smi_t intf, struct seq_table *ent,
 		 * resent.
 		 */
 		handlers = intf->handlers;
-		if (handlers)
+		if (handlers) {
+			if (is_lan_addr(&ent->recv_msg->addr))
+				ipmi_inc_stat(intf,
+					      retransmitted_lan_commands);
+			else
+				ipmi_inc_stat(intf,
+					      retransmitted_ipmb_commands);
+
 			intf->handlers->sender(intf->send_info,
 					       smi_msg, 0);
-		else
+		} else
 			ipmi_free_smi_msg(smi_msg);
 
 		spin_lock_irqsave(&intf->seq_lock, *flags);
@@ -4265,7 +4419,6 @@ static int ipmi_init_msghandler(void)
 	    return -ENOMEM;
 	}
 
-	proc_ipmi_root->owner = THIS_MODULE;
 #endif /* CONFIG_PROC_FS */
 
 	setup_timer(&ipmi_timer, ipmi_timeout, 0);
diff --git a/drivers/char/ipmi/ipmi_si_intf.c b/drivers/char/ipmi/ipmi_si_intf.c
index 3000135..2596446 100644
--- a/drivers/char/ipmi/ipmi_si_intf.c
+++ b/drivers/char/ipmi/ipmi_si_intf.c
@@ -82,12 +82,6 @@
 #define SI_SHORT_TIMEOUT_USEC  250 /* .25ms when the SM request a
 				      short timeout */
 
-/* Bit for BMC global enables. */
-#define IPMI_BMC_RCV_MSG_INTR     0x01
-#define IPMI_BMC_EVT_MSG_INTR     0x02
-#define IPMI_BMC_EVT_MSG_BUFF     0x04
-#define IPMI_BMC_SYS_LOG          0x08
-
 enum si_intf_state {
 	SI_NORMAL,
 	SI_GETTING_FLAGS,
@@ -220,6 +214,9 @@ struct smi_info {
 			     OEM2_DATA_AVAIL)
 	unsigned char       msg_flags;
 
+	/* Does the BMC have an event buffer? */
+	char		    has_event_buffer;
+
 	/*
 	 * If set to true, this will request events the next time the
 	 * state machine is idle.
@@ -968,7 +965,8 @@ static void request_events(void *send_info)
 {
 	struct smi_info *smi_info = send_info;
 
-	if (atomic_read(&smi_info->stop_operation))
+	if (atomic_read(&smi_info->stop_operation) ||
+				!smi_info->has_event_buffer)
 		return;
 
 	atomic_set(&smi_info->req_events, 1);
@@ -2407,26 +2405,9 @@ static struct of_platform_driver ipmi_of_platform_driver = {
 };
 #endif /* CONFIG_PPC_OF */
 
-
-static int try_get_dev_id(struct smi_info *smi_info)
+static int wait_for_msg_done(struct smi_info *smi_info)
 {
-	unsigned char         msg[2];
-	unsigned char         *resp;
-	unsigned long         resp_len;
 	enum si_sm_result     smi_result;
-	int                   rv = 0;
-
-	resp = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
-	if (!resp)
-		return -ENOMEM;
-
-	/*
-	 * Do a Get Device ID command, since it comes back with some
-	 * useful info.
-	 */
-	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
-	msg[1] = IPMI_GET_DEVICE_ID_CMD;
-	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
 
 	smi_result = smi_info->handlers->event(smi_info->si_sm, 0);
 	for (;;) {
@@ -2441,16 +2422,39 @@ static int try_get_dev_id(struct smi_info *smi_info)
 		} else
 			break;
 	}
-	if (smi_result == SI_SM_HOSED) {
+	if (smi_result == SI_SM_HOSED)
 		/*
 		 * We couldn't get the state machine to run, so whatever's at
 		 * the port is probably not an IPMI SMI interface.
 		 */
-		rv = -ENODEV;
+		return -ENODEV;
+
+	return 0;
+}
+
+static int try_get_dev_id(struct smi_info *smi_info)
+{
+	unsigned char         msg[2];
+	unsigned char         *resp;
+	unsigned long         resp_len;
+	int                   rv = 0;
+
+	resp = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
+	if (!resp)
+		return -ENOMEM;
+
+	/*
+	 * Do a Get Device ID command, since it comes back with some
+	 * useful info.
+	 */
+	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
+	msg[1] = IPMI_GET_DEVICE_ID_CMD;
+	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
+
+	rv = wait_for_msg_done(smi_info);
+	if (rv)
 		goto out;
-	}
 
-	/* Otherwise, we got some data. */
 	resp_len = smi_info->handlers->get_result(smi_info->si_sm,
 						  resp, IPMI_MAX_MSG_LENGTH);
 
@@ -2462,6 +2466,88 @@ static int try_get_dev_id(struct smi_info *smi_info)
 	return rv;
 }
 
+static int try_enable_event_buffer(struct smi_info *smi_info)
+{
+	unsigned char         msg[3];
+	unsigned char         *resp;
+	unsigned long         resp_len;
+	int                   rv = 0;
+
+	resp = kmalloc(IPMI_MAX_MSG_LENGTH, GFP_KERNEL);
+	if (!resp)
+		return -ENOMEM;
+
+	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
+	msg[1] = IPMI_GET_BMC_GLOBAL_ENABLES_CMD;
+	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 2);
+
+	rv = wait_for_msg_done(smi_info);
+	if (rv) {
+		printk(KERN_WARNING
+		       "ipmi_si: Error getting response from get global,"
+		       " enables command, the event buffer is not"
+		       " enabled.\n");
+		goto out;
+	}
+
+	resp_len = smi_info->handlers->get_result(smi_info->si_sm,
+						  resp, IPMI_MAX_MSG_LENGTH);
+
+	if (resp_len < 4 ||
+			resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
+			resp[1] != IPMI_GET_BMC_GLOBAL_ENABLES_CMD   ||
+			resp[2] != 0) {
+		printk(KERN_WARNING
+		       "ipmi_si: Invalid return from get global"
+		       " enables command, cannot enable the event"
+		       " buffer.\n");
+		rv = -EINVAL;
+		goto out;
+	}
+
+	if (resp[3] & IPMI_BMC_EVT_MSG_BUFF)
+		/* buffer is already enabled, nothing to do. */
+		goto out;
+
+	msg[0] = IPMI_NETFN_APP_REQUEST << 2;
+	msg[1] = IPMI_SET_BMC_GLOBAL_ENABLES_CMD;
+	msg[2] = resp[3] | IPMI_BMC_EVT_MSG_BUFF;
+	smi_info->handlers->start_transaction(smi_info->si_sm, msg, 3);
+
+	rv = wait_for_msg_done(smi_info);
+	if (rv) {
+		printk(KERN_WARNING
+		       "ipmi_si: Error getting response from set global,"
+		       " enables command, the event buffer is not"
+		       " enabled.\n");
+		goto out;
+	}
+
+	resp_len = smi_info->handlers->get_result(smi_info->si_sm,
+						  resp, IPMI_MAX_MSG_LENGTH);
+
+	if (resp_len < 3 ||
+			resp[0] != (IPMI_NETFN_APP_REQUEST | 1) << 2 ||
+			resp[1] != IPMI_SET_BMC_GLOBAL_ENABLES_CMD) {
+		printk(KERN_WARNING
+		       "ipmi_si: Invalid return from get global,"
+		       "enables command, not enable the event"
+		       " buffer.\n");
+		rv = -EINVAL;
+		goto out;
+	}
+
+	if (resp[2] != 0)
+		/*
+		 * An error when setting the event buffer bit means
+		 * that the event buffer is not supported.
+		 */
+		rv = -ENOENT;
+ out:
+	kfree(resp);
+	return rv;
+}
+
 static int type_file_read_proc(char *page, char **start, off_t off,
 			       int count, int *eof, void *data)
 {
@@ -2847,6 +2933,10 @@ static int try_smi_init(struct smi_info *new_smi)
 	new_smi->intf_num = smi_num;
 	smi_num++;
 
+	rv = try_enable_event_buffer(new_smi);
+	if (rv == 0)
+		new_smi->has_event_buffer = 1;
+
 	/*
 	 * Start clearing the flags before we enable interrupts or the
 	 * timer to avoid racing with the timer.
@@ -2863,7 +2953,7 @@ static int try_smi_init(struct smi_info *new_smi)
 		 */
 		new_smi->pdev = platform_device_alloc("ipmi_si",
 						      new_smi->intf_num);
-		if (rv) {
+		if (!new_smi->pdev) {
 			printk(KERN_ERR
 			       "ipmi_si_intf:"
 			       " Unable to allocate platform device\n");
@@ -2899,7 +2989,7 @@ static int try_smi_init(struct smi_info *new_smi)
 
 	rv = ipmi_smi_add_proc_entry(new_smi->intf, "type",
 				     type_file_read_proc,
-				     new_smi, THIS_MODULE);
+				     new_smi);
 	if (rv) {
 		printk(KERN_ERR
 		       "ipmi_si: Unable to create proc entry: %d\n",
@@ -2909,7 +2999,7 @@ static int try_smi_init(struct smi_info *new_smi)
 
 	rv = ipmi_smi_add_proc_entry(new_smi->intf, "si_stats",
 				     stat_file_read_proc,
-				     new_smi, THIS_MODULE);
+				     new_smi);
 	if (rv) {
 		printk(KERN_ERR
 		       "ipmi_si: Unable to create proc entry: %d\n",
@@ -2919,7 +3009,7 @@ static int try_smi_init(struct smi_info *new_smi)
 
 	rv = ipmi_smi_add_proc_entry(new_smi->intf, "params",
 				     param_read_proc,
-				     new_smi, THIS_MODULE);
+				     new_smi);
 	if (rv) {
 		printk(KERN_ERR
 		       "ipmi_si: Unable to create proc entry: %d\n",
diff --git a/drivers/char/isicom.c b/drivers/char/isicom.c
index 24aa6e8..a59eac5 100644
--- a/drivers/char/isicom.c
+++ b/drivers/char/isicom.c
@@ -925,6 +925,7 @@ static void isicom_shutdown_port(struct isi_port *port)
 		if (!card->count)
 			isicom_shutdown_board(card);
 	}
+	tty_kref_put(tty);
 }
 
 static void isicom_flush_buffer(struct tty_struct *tty)
diff --git a/drivers/char/istallion.c b/drivers/char/istallion.c
index 5c3dc6b..fff19f7 100644
--- a/drivers/char/istallion.c
+++ b/drivers/char/istallion.c
@@ -24,6 +24,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial.h>
+#include <linux/seq_file.h>
 #include <linux/cdk.h>
 #include <linux/comstats.h>
 #include <linux/istallion.h>
@@ -613,7 +614,6 @@ static int	stli_breakctl(struct tty_struct *tty, int state);
 static void	stli_waituntilsent(struct tty_struct *tty, int timeout);
 static void	stli_sendxchar(struct tty_struct *tty, char ch);
 static void	stli_hangup(struct tty_struct *tty);
-static int	stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portnr, char *pos);
 
 static int	stli_brdinit(struct stlibrd *brdp);
 static int	stli_startbrd(struct stlibrd *brdp);
@@ -1893,20 +1893,10 @@ static void stli_sendxchar(struct tty_struct *tty, char ch)
 	stli_cmdwait(brdp, portp, A_PORTCTRL, &actrl, sizeof(asyctrl_t), 0);
 }
 
-/*****************************************************************************/
-
-#define	MAXLINE		80
-
-/*
- *	Format info for a specified port. The line is deliberately limited
- *	to 80 characters. (If it is too long it will be truncated, if too
- *	short then padded with spaces).
- */
-
-static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portnr, char *pos)
+static void stli_portinfo(struct seq_file *m, struct stlibrd *brdp, struct stliport *portp, int portnr)
 {
-	char *sp, *uart;
-	int rc, cnt;
+	char *uart;
+	int rc;
 
 	rc = stli_portcmdstats(NULL, portp);
 
@@ -1918,44 +1908,50 @@ static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portn
 		default:uart = "CD1400"; break;
 		}
 	}
-
-	sp = pos;
-	sp += sprintf(sp, "%d: uart:%s ", portnr, uart);
+	seq_printf(m, "%d: uart:%s ", portnr, uart);
 
 	if ((brdp->state & BST_STARTED) && (rc >= 0)) {
-		sp += sprintf(sp, "tx:%d rx:%d", (int) stli_comstats.txtotal,
+		char sep;
+
+		seq_printf(m, "tx:%d rx:%d", (int) stli_comstats.txtotal,
 			(int) stli_comstats.rxtotal);
 
 		if (stli_comstats.rxframing)
-			sp += sprintf(sp, " fe:%d",
+			seq_printf(m, " fe:%d",
 				(int) stli_comstats.rxframing);
 		if (stli_comstats.rxparity)
-			sp += sprintf(sp, " pe:%d",
+			seq_printf(m, " pe:%d",
 				(int) stli_comstats.rxparity);
 		if (stli_comstats.rxbreaks)
-			sp += sprintf(sp, " brk:%d",
+			seq_printf(m, " brk:%d",
 				(int) stli_comstats.rxbreaks);
 		if (stli_comstats.rxoverrun)
-			sp += sprintf(sp, " oe:%d",
+			seq_printf(m, " oe:%d",
 				(int) stli_comstats.rxoverrun);
 
-		cnt = sprintf(sp, "%s%s%s%s%s ",
-			(stli_comstats.signals & TIOCM_RTS) ? "|RTS" : "",
-			(stli_comstats.signals & TIOCM_CTS) ? "|CTS" : "",
-			(stli_comstats.signals & TIOCM_DTR) ? "|DTR" : "",
-			(stli_comstats.signals & TIOCM_CD) ? "|DCD" : "",
-			(stli_comstats.signals & TIOCM_DSR) ? "|DSR" : "");
-		*sp = ' ';
-		sp += cnt;
+		sep = ' ';
+		if (stli_comstats.signals & TIOCM_RTS) {
+			seq_printf(m, "%c%s", sep, "RTS");
+			sep = '|';
+		}
+		if (stli_comstats.signals & TIOCM_CTS) {
+			seq_printf(m, "%c%s", sep, "CTS");
+			sep = '|';
+		}
+		if (stli_comstats.signals & TIOCM_DTR) {
+			seq_printf(m, "%c%s", sep, "DTR");
+			sep = '|';
+		}
+		if (stli_comstats.signals & TIOCM_CD) {
+			seq_printf(m, "%c%s", sep, "DCD");
+			sep = '|';
+		}
+		if (stli_comstats.signals & TIOCM_DSR) {
+			seq_printf(m, "%c%s", sep, "DSR");
+			sep = '|';
+		}
 	}
-
-	for (cnt = (sp - pos); (cnt < (MAXLINE - 1)); cnt++)
-		*sp++ = ' ';
-	if (cnt >= MAXLINE)
-		pos[(MAXLINE - 2)] = '+';
-	pos[(MAXLINE - 1)] = '\n';
-
-	return(MAXLINE);
+	seq_putc(m, '\n');
 }
 
 /*****************************************************************************/
@@ -1964,26 +1960,15 @@ static int stli_portinfo(struct stlibrd *brdp, struct stliport *portp, int portn
  *	Port info, read from the /proc file system.
  */
 
-static int stli_readproc(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int stli_proc_show(struct seq_file *m, void *v)
 {
 	struct stlibrd *brdp;
 	struct stliport *portp;
 	unsigned int brdnr, portnr, totalport;
-	int curoff, maxoff;
-	char *pos;
 
-	pos = page;
 	totalport = 0;
-	curoff = 0;
-
-	if (off == 0) {
-		pos += sprintf(pos, "%s: version %s", stli_drvtitle,
-			stli_drvversion);
-		while (pos < (page + MAXLINE - 1))
-			*pos++ = ' ';
-		*pos++ = '\n';
-	}
-	curoff =  MAXLINE;
+
+	seq_printf(m, "%s: version %s\n", stli_drvtitle, stli_drvversion);
 
 /*
  *	We scan through for each board, panel and port. The offset is
@@ -1996,33 +1981,31 @@ static int stli_readproc(char *page, char **start, off_t off, int count, int *eo
 		if (brdp->state == 0)
 			continue;
 
-		maxoff = curoff + (brdp->nrports * MAXLINE);
-		if (off >= maxoff) {
-			curoff = maxoff;
-			continue;
-		}
-
 		totalport = brdnr * STL_MAXPORTS;
 		for (portnr = 0; (portnr < brdp->nrports); portnr++,
 		    totalport++) {
 			portp = brdp->ports[portnr];
 			if (portp == NULL)
 				continue;
-			if (off >= (curoff += MAXLINE))
-				continue;
-			if ((pos - page + MAXLINE) > count)
-				goto stli_readdone;
-			pos += stli_portinfo(brdp, portp, totalport, pos);
+			stli_portinfo(m, brdp, portp, totalport);
 		}
 	}
+	return 0;
+}
 
-	*eof = 1;
-
-stli_readdone:
-	*start = page;
-	return(pos - page);
+static int stli_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, stli_proc_show, NULL);
 }
 
+static const struct file_operations stli_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= stli_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /*****************************************************************************/
 
 /*
@@ -4427,9 +4410,9 @@ static const struct tty_operations stli_ops = {
 	.break_ctl = stli_breakctl,
 	.wait_until_sent = stli_waituntilsent,
 	.send_xchar = stli_sendxchar,
-	.read_proc = stli_readproc,
 	.tiocmget = stli_tiocmget,
 	.tiocmset = stli_tiocmset,
+	.proc_fops = &stli_proc_fops,
 };
 
 static const struct tty_port_operations stli_port_ops = {
diff --git a/drivers/char/mem.c b/drivers/char/mem.c
index 3586b3b..8f05c38 100644
--- a/drivers/char/mem.c
+++ b/drivers/char/mem.c
@@ -301,33 +301,7 @@ static inline int private_mapping_ok(struct vm_area_struct *vma)
 }
 #endif
 
-void __attribute__((weak))
-map_devmem(unsigned long pfn, unsigned long len, pgprot_t prot)
-{
-	/* nothing. architectures can override. */
-}
-
-void __attribute__((weak))
-unmap_devmem(unsigned long pfn, unsigned long len, pgprot_t prot)
-{
-	/* nothing. architectures can override. */
-}
-
-static void mmap_mem_open(struct vm_area_struct *vma)
-{
-	map_devmem(vma->vm_pgoff,  vma->vm_end - vma->vm_start,
-			vma->vm_page_prot);
-}
-
-static void mmap_mem_close(struct vm_area_struct *vma)
-{
-	unmap_devmem(vma->vm_pgoff,  vma->vm_end - vma->vm_start,
-			vma->vm_page_prot);
-}
-
 static struct vm_operations_struct mmap_mem_ops = {
-	.open  = mmap_mem_open,
-	.close = mmap_mem_close,
 #ifdef CONFIG_HAVE_IOREMAP_PROT
 	.access = generic_access_phys
 #endif
@@ -362,7 +336,6 @@ static int mmap_mem(struct file * file, struct vm_area_struct * vma)
 			    vma->vm_pgoff,
 			    size,
 			    vma->vm_page_prot)) {
-		unmap_devmem(vma->vm_pgoff, size, vma->vm_page_prot);
 		return -EAGAIN;
 	}
 	return 0;
diff --git a/drivers/char/moxa.c b/drivers/char/moxa.c
index 8b0da97..4a4cab7 100644
--- a/drivers/char/moxa.c
+++ b/drivers/char/moxa.c
@@ -1486,11 +1486,11 @@ static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
 	}
 
 	if (!handle) /* nothing else to do */
-		return 0;
+		goto put;
 
 	intr = readw(ip); /* port irq status */
 	if (intr == 0)
-		return 0;
+		goto put;
 
 	writew(0, ip); /* ACK port */
 	ofsAddr = p->tableAddr;
@@ -1499,16 +1499,17 @@ static int moxa_poll_port(struct moxa_port *p, unsigned int handle,
 				ofsAddr + HostStat);
 
 	if (!inited)
-		return 0;
+		goto put;
 
 	if (tty && (intr & IntrBreak) && !I_IGNBRK(tty)) { /* BREAK */
 		tty_insert_flip_char(tty, 0, TTY_BREAK);
 		tty_schedule_flip(tty);
 	}
-	tty_kref_put(tty);
 
 	if (intr & IntrLine)
 		moxa_new_dcdstate(p, readb(ofsAddr + FlagStat) & DCD_state);
+put:
+	tty_kref_put(tty);
 
 	return 0;
 }
diff --git a/drivers/char/mxser.c b/drivers/char/mxser.c
index 402c9f2..a420e8d 100644
--- a/drivers/char/mxser.c
+++ b/drivers/char/mxser.c
@@ -820,7 +820,6 @@ static void mxser_check_modem_status(struct tty_struct *tty,
 			wake_up_interruptible(&port->port.open_wait);
 	}
 
-	tty = tty_port_tty_get(&port->port);
 	if (port->port.flags & ASYNC_CTS_FLOW) {
 		if (tty->hw_stopped) {
 			if (status & UART_MSR_CTS) {
diff --git a/drivers/char/pcmcia/synclink_cs.c b/drivers/char/pcmcia/synclink_cs.c
index dc073e1..19d79fc 100644
--- a/drivers/char/pcmcia/synclink_cs.c
+++ b/drivers/char/pcmcia/synclink_cs.c
@@ -51,6 +51,7 @@
 #include <linux/ptrace.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
@@ -2619,13 +2620,12 @@ cleanup:
  * /proc fs routines....
  */
 
-static inline int line_info(char *buf, MGSLPC_INFO *info)
+static inline void line_info(struct seq_file *m, MGSLPC_INFO *info)
 {
 	char	stat_buf[30];
-	int	ret;
 	unsigned long flags;
 
-	ret = sprintf(buf, "%s:io:%04X irq:%d",
+	seq_printf(m, "%s:io:%04X irq:%d",
 		      info->device_name, info->io_base, info->irq_level);
 
 	/* output current serial signal states */
@@ -2649,75 +2649,70 @@ static inline int line_info(char *buf, MGSLPC_INFO *info)
 		strcat(stat_buf, "|RI");
 
 	if (info->params.mode == MGSL_MODE_HDLC) {
-		ret += sprintf(buf+ret, " HDLC txok:%d rxok:%d",
+		seq_printf(m, " HDLC txok:%d rxok:%d",
 			      info->icount.txok, info->icount.rxok);
 		if (info->icount.txunder)
-			ret += sprintf(buf+ret, " txunder:%d", info->icount.txunder);
+			seq_printf(m, " txunder:%d", info->icount.txunder);
 		if (info->icount.txabort)
-			ret += sprintf(buf+ret, " txabort:%d", info->icount.txabort);
+			seq_printf(m, " txabort:%d", info->icount.txabort);
 		if (info->icount.rxshort)
-			ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);
+			seq_printf(m, " rxshort:%d", info->icount.rxshort);
 		if (info->icount.rxlong)
-			ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxlong);
+			seq_printf(m, " rxlong:%d", info->icount.rxlong);
 		if (info->icount.rxover)
-			ret += sprintf(buf+ret, " rxover:%d", info->icount.rxover);
+			seq_printf(m, " rxover:%d", info->icount.rxover);
 		if (info->icount.rxcrc)
-			ret += sprintf(buf+ret, " rxcrc:%d", info->icount.rxcrc);
+			seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
 	} else {
-		ret += sprintf(buf+ret, " ASYNC tx:%d rx:%d",
+		seq_printf(m, " ASYNC tx:%d rx:%d",
 			      info->icount.tx, info->icount.rx);
 		if (info->icount.frame)
-			ret += sprintf(buf+ret, " fe:%d", info->icount.frame);
+			seq_printf(m, " fe:%d", info->icount.frame);
 		if (info->icount.parity)
-			ret += sprintf(buf+ret, " pe:%d", info->icount.parity);
+			seq_printf(m, " pe:%d", info->icount.parity);
 		if (info->icount.brk)
-			ret += sprintf(buf+ret, " brk:%d", info->icount.brk);
+			seq_printf(m, " brk:%d", info->icount.brk);
 		if (info->icount.overrun)
-			ret += sprintf(buf+ret, " oe:%d", info->icount.overrun);
+			seq_printf(m, " oe:%d", info->icount.overrun);
 	}
 
 	/* Append serial signal status to end */
-	ret += sprintf(buf+ret, " %s\n", stat_buf+1);
+	seq_printf(m, " %s\n", stat_buf+1);
 
-	ret += sprintf(buf+ret, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
+	seq_printf(m, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
 		       info->tx_active,info->bh_requested,info->bh_running,
 		       info->pending_bh);
-
-	return ret;
 }
 
 /* Called to print information about devices
  */
-static int mgslpc_read_proc(char *page, char **start, off_t off, int count,
-		 int *eof, void *data)
+static int mgslpc_proc_show(struct seq_file *m, void *v)
 {
-	int len = 0, l;
-	off_t	begin = 0;
 	MGSLPC_INFO *info;
 
-	len += sprintf(page, "synclink driver:%s\n", driver_version);
+	seq_printf(m, "synclink driver:%s\n", driver_version);
 
 	info = mgslpc_device_list;
 	while( info ) {
-		l = line_info(page + len, info);
-		len += l;
-		if (len+begin > off+count)
-			goto done;
-		if (len+begin < off) {
-			begin += len;
-			len = 0;
-		}
+		line_info(m, info);
 		info = info->next_device;
 	}
+	return 0;
+}
 
-	*eof = 1;
-done:
-	if (off >= len+begin)
-		return 0;
-	*start = page + (off-begin);
-	return ((count < begin+len-off) ? count : begin+len-off);
+static int mgslpc_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mgslpc_proc_show, NULL);
 }
 
+static const struct file_operations mgslpc_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= mgslpc_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 static int rx_alloc_buffers(MGSLPC_INFO *info)
 {
 	/* each buffer has header and data */
@@ -2861,13 +2856,13 @@ static const struct tty_operations mgslpc_ops = {
 	.send_xchar = mgslpc_send_xchar,
 	.break_ctl = mgslpc_break,
 	.wait_until_sent = mgslpc_wait_until_sent,
-	.read_proc = mgslpc_read_proc,
 	.set_termios = mgslpc_set_termios,
 	.stop = tx_pause,
 	.start = tx_release,
 	.hangup = mgslpc_hangup,
 	.tiocmget = tiocmget,
 	.tiocmset = tiocmset,
+	.proc_fops = &mgslpc_proc_fops,
 };
 
 static void synclink_cs_cleanup(void)
@@ -4311,10 +4306,17 @@ static void hdlcdev_rx(MGSLPC_INFO *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -4341,11 +4343,8 @@ static int hdlcdev_init(MGSLPC_INFO *info)
 	dev->irq       = info->irq_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops	    = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/random.c b/drivers/char/random.c
index 7c13581..b2ced39 100644
--- a/drivers/char/random.c
+++ b/drivers/char/random.c
@@ -241,6 +241,10 @@
 #include <linux/percpu.h>
 #include <linux/cryptohash.h>
 
+#ifdef CONFIG_GENERIC_HARDIRQS
+# include <linux/irq.h>
+#endif
+
 #include <asm/processor.h>
 #include <asm/uaccess.h>
 #include <asm/irq.h>
@@ -558,7 +562,7 @@ struct timer_rand_state {
 	unsigned dont_count_entropy:1;
 };
 
-#ifndef CONFIG_SPARSE_IRQ
+#ifndef CONFIG_GENERIC_HARDIRQS
 
 static struct timer_rand_state *irq_timer_state[NR_IRQS];
 
@@ -1484,7 +1488,8 @@ static void rekey_seq_generator(struct work_struct *work)
 	keyptr->count = (ip_cnt & COUNT_MASK) << HASH_BITS;
 	smp_wmb();
 	ip_cnt++;
-	schedule_delayed_work(&rekey_work, REKEY_INTERVAL);
+	schedule_delayed_work(&rekey_work,
+			      round_jiffies_relative(REKEY_INTERVAL));
 }
 
 static inline struct keydata *get_keyptr(void)
@@ -1660,15 +1665,20 @@ EXPORT_SYMBOL(secure_dccp_sequence_number);
  * value is not cryptographically secure but for several uses the cost of
  * depleting entropy is too high
  */
+DEFINE_PER_CPU(__u32 [4], get_random_int_hash);
 unsigned int get_random_int(void)
 {
-	/*
-	 * Use IP's RNG. It suits our purpose perfectly: it re-keys itself
-	 * every second, from the entropy pool (and thus creates a limited
-	 * drain on it), and uses halfMD4Transform within the second. We
-	 * also mix it with jiffies and the PID:
-	 */
-	return secure_ip_id((__force __be32)(current->pid + jiffies));
+	struct keydata *keyptr;
+	__u32 *hash = get_cpu_var(get_random_int_hash);
+	int ret;
+
+	keyptr = get_keyptr();
+	hash[0] += current->pid + jiffies + get_cycles() + (int)(long)&ret;
+
+	ret = half_md4_transform(hash, keyptr->secret);
+	put_cpu_var(get_random_int_hash);
+
+	return ret;
 }
 
 /*
diff --git a/drivers/char/raw.c b/drivers/char/raw.c
index 96adf28..20d90e6 100644
--- a/drivers/char/raw.c
+++ b/drivers/char/raw.c
@@ -90,6 +90,7 @@ out1:
 	blkdev_put(bdev, filp->f_mode);
 out:
 	mutex_unlock(&raw_mutex);
+	unlock_kernel();
 	return err;
 }
 
diff --git a/drivers/char/rio/rio_linux.c b/drivers/char/rio/rio_linux.c
index 2e8a6ee..ce81da5 100644
--- a/drivers/char/rio/rio_linux.c
+++ b/drivers/char/rio/rio_linux.c
@@ -333,7 +333,7 @@ void rio_copy_to_card(void *from, void __iomem *to, int len)
 
 int rio_minor(struct tty_struct *tty)
 {
-	return tty->index + (tty->driver == rio_driver) ? 0 : 256;
+	return tty->index + ((tty->driver == rio_driver) ? 0 : 256);
 }
 
 static int rio_set_real_termios(void *ptr)
diff --git a/drivers/char/riscom8.c b/drivers/char/riscom8.c
index 9af8d74..2176604 100644
--- a/drivers/char/riscom8.c
+++ b/drivers/char/riscom8.c
@@ -48,6 +48,7 @@
 #include <linux/delay.h>
 #include <linux/tty_flip.h>
 #include <linux/spinlock.h>
+#include <linux/device.h>
 
 #include <linux/uaccess.h>
 
@@ -1524,6 +1525,7 @@ module_param(iobase2, int, 0);
 module_param(iobase3, int, 0);
 
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_CHARDEV_MAJOR(RISCOM8_NORMAL_MAJOR);
 #endif /* MODULE */
 
 /*
diff --git a/drivers/char/sonypi.c b/drivers/char/sonypi.c
index f437443..fd3dced 100644
--- a/drivers/char/sonypi.c
+++ b/drivers/char/sonypi.c
@@ -888,12 +888,7 @@ found:
 
 static int sonypi_misc_fasync(int fd, struct file *filp, int on)
 {
-	int retval;
-
-	retval = fasync_helper(fd, filp, on, &sonypi_device.fifo_async);
-	if (retval < 0)
-		return retval;
-	return 0;
+	return fasync_helper(fd, filp, on, &sonypi_device.fifo_async);
 }
 
 static int sonypi_misc_release(struct inode *inode, struct file *file)
diff --git a/drivers/char/specialix.c b/drivers/char/specialix.c
index 3c67c3d..e72be41 100644
--- a/drivers/char/specialix.c
+++ b/drivers/char/specialix.c
@@ -2365,3 +2365,4 @@ module_init(specialix_init_module);
 module_exit(specialix_exit_module);
 
 MODULE_LICENSE("GPL");
+MODULE_ALIAS_CHARDEV_MAJOR(SPECIALIX_NORMAL_MAJOR);
diff --git a/drivers/char/stallion.c b/drivers/char/stallion.c
index e1e0dd8..2ad813a 100644
--- a/drivers/char/stallion.c
+++ b/drivers/char/stallion.c
@@ -32,6 +32,7 @@
 #include <linux/tty.h>
 #include <linux/tty_flip.h>
 #include <linux/serial.h>
+#include <linux/seq_file.h>
 #include <linux/cd1400.h>
 #include <linux/sc26198.h>
 #include <linux/comstats.h>
@@ -1379,52 +1380,47 @@ static void stl_sendxchar(struct tty_struct *tty, char ch)
 		stl_putchar(tty, ch);
 }
 
-/*****************************************************************************/
-
-#define	MAXLINE		80
-
-/*
- *	Format info for a specified port. The line is deliberately limited
- *	to 80 characters. (If it is too long it will be truncated, if too
- *	short then padded with spaces).
- */
-
-static int stl_portinfo(struct stlport *portp, int portnr, char *pos)
+static void stl_portinfo(struct seq_file *m, struct stlport *portp, int portnr)
 {
-	char	*sp;
-	int	sigs, cnt;
+	int	sigs;
+	char sep;
 
-	sp = pos;
-	sp += sprintf(sp, "%d: uart:%s tx:%d rx:%d",
+	seq_printf(m, "%d: uart:%s tx:%d rx:%d",
 		portnr, (portp->hwid == 1) ? "SC26198" : "CD1400",
 		(int) portp->stats.txtotal, (int) portp->stats.rxtotal);
 
 	if (portp->stats.rxframing)
-		sp += sprintf(sp, " fe:%d", (int) portp->stats.rxframing);
+		seq_printf(m, " fe:%d", (int) portp->stats.rxframing);
 	if (portp->stats.rxparity)
-		sp += sprintf(sp, " pe:%d", (int) portp->stats.rxparity);
+		seq_printf(m, " pe:%d", (int) portp->stats.rxparity);
 	if (portp->stats.rxbreaks)
-		sp += sprintf(sp, " brk:%d", (int) portp->stats.rxbreaks);
+		seq_printf(m, " brk:%d", (int) portp->stats.rxbreaks);
 	if (portp->stats.rxoverrun)
-		sp += sprintf(sp, " oe:%d", (int) portp->stats.rxoverrun);
+		seq_printf(m, " oe:%d", (int) portp->stats.rxoverrun);
 
 	sigs = stl_getsignals(portp);
-	cnt = sprintf(sp, "%s%s%s%s%s ",
-		(sigs & TIOCM_RTS) ? "|RTS" : "",
-		(sigs & TIOCM_CTS) ? "|CTS" : "",
-		(sigs & TIOCM_DTR) ? "|DTR" : "",
-		(sigs & TIOCM_CD) ? "|DCD" : "",
-		(sigs & TIOCM_DSR) ? "|DSR" : "");
-	*sp = ' ';
-	sp += cnt;
-
-	for (cnt = sp - pos; cnt < (MAXLINE - 1); cnt++)
-		*sp++ = ' ';
-	if (cnt >= MAXLINE)
-		pos[(MAXLINE - 2)] = '+';
-	pos[(MAXLINE - 1)] = '\n';
-
-	return MAXLINE;
+	sep = ' ';
+	if (sigs & TIOCM_RTS) {
+		seq_printf(m, "%c%s", sep, "RTS");
+		sep = '|';
+	}
+	if (sigs & TIOCM_CTS) {
+		seq_printf(m, "%c%s", sep, "CTS");
+		sep = '|';
+	}
+	if (sigs & TIOCM_DTR) {
+		seq_printf(m, "%c%s", sep, "DTR");
+		sep = '|';
+	}
+	if (sigs & TIOCM_CD) {
+		seq_printf(m, "%c%s", sep, "DCD");
+		sep = '|';
+	}
+	if (sigs & TIOCM_DSR) {
+		seq_printf(m, "%c%s", sep, "DSR");
+		sep = '|';
+	}
+	seq_putc(m, '\n');
 }
 
 /*****************************************************************************/
@@ -1433,30 +1429,17 @@ static int stl_portinfo(struct stlport *portp, int portnr, char *pos)
  *	Port info, read from the /proc file system.
  */
 
-static int stl_readproc(char *page, char **start, off_t off, int count, int *eof, void *data)
+static int stl_proc_show(struct seq_file *m, void *v)
 {
 	struct stlbrd	*brdp;
 	struct stlpanel	*panelp;
 	struct stlport	*portp;
 	unsigned int	brdnr, panelnr, portnr;
-	int		totalport, curoff, maxoff;
-	char		*pos;
+	int		totalport;
 
-	pr_debug("stl_readproc(page=%p,start=%p,off=%lx,count=%d,eof=%p,"
-		"data=%p\n", page, start, off, count, eof, data);
-
-	pos = page;
 	totalport = 0;
-	curoff = 0;
-
-	if (off == 0) {
-		pos += sprintf(pos, "%s: version %s", stl_drvtitle,
-			stl_drvversion);
-		while (pos < (page + MAXLINE - 1))
-			*pos++ = ' ';
-		*pos++ = '\n';
-	}
-	curoff =  MAXLINE;
+
+	seq_printf(m, "%s: version %s\n", stl_drvtitle, stl_drvversion);
 
 /*
  *	We scan through for each board, panel and port. The offset is
@@ -1469,46 +1452,37 @@ static int stl_readproc(char *page, char **start, off_t off, int count, int *eof
 		if (brdp->state == 0)
 			continue;
 
-		maxoff = curoff + (brdp->nrports * MAXLINE);
-		if (off >= maxoff) {
-			curoff = maxoff;
-			continue;
-		}
-
 		totalport = brdnr * STL_MAXPORTS;
 		for (panelnr = 0; panelnr < brdp->nrpanels; panelnr++) {
 			panelp = brdp->panels[panelnr];
 			if (panelp == NULL)
 				continue;
 
-			maxoff = curoff + (panelp->nrports * MAXLINE);
-			if (off >= maxoff) {
-				curoff = maxoff;
-				totalport += panelp->nrports;
-				continue;
-			}
-
 			for (portnr = 0; portnr < panelp->nrports; portnr++,
 			    totalport++) {
 				portp = panelp->ports[portnr];
 				if (portp == NULL)
 					continue;
-				if (off >= (curoff += MAXLINE))
-					continue;
-				if ((pos - page + MAXLINE) > count)
-					goto stl_readdone;
-				pos += stl_portinfo(portp, totalport, pos);
+				stl_portinfo(m, portp, totalport);
 			}
 		}
 	}
+	return 0;
+}
 
-	*eof = 1;
-
-stl_readdone:
-	*start = page;
-	return pos - page;
+static int stl_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, stl_proc_show, NULL);
 }
 
+static const struct file_operations stl_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= stl_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /*****************************************************************************/
 
 /*
@@ -2566,9 +2540,9 @@ static const struct tty_operations stl_ops = {
 	.break_ctl = stl_breakctl,
 	.wait_until_sent = stl_waituntilsent,
 	.send_xchar = stl_sendxchar,
-	.read_proc = stl_readproc,
 	.tiocmget = stl_tiocmget,
 	.tiocmset = stl_tiocmset,
+	.proc_fops = &stl_proc_fops,
 };
 
 static const struct tty_port_operations stl_port_ops = {
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index b8063d4..afd0b26 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -79,6 +79,7 @@
 #include <linux/ptrace.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/delay.h>
 #include <linux/netdevice.h>
@@ -3459,18 +3460,17 @@ cleanup:
  * /proc fs routines....
  */
 
-static inline int line_info(char *buf, struct mgsl_struct *info)
+static inline void line_info(struct seq_file *m, struct mgsl_struct *info)
 {
 	char	stat_buf[30];
-	int	ret;
 	unsigned long flags;
 
 	if (info->bus_type == MGSL_BUS_TYPE_PCI) {
-		ret = sprintf(buf, "%s:PCI io:%04X irq:%d mem:%08X lcr:%08X",
+		seq_printf(m, "%s:PCI io:%04X irq:%d mem:%08X lcr:%08X",
 			info->device_name, info->io_base, info->irq_level,
 			info->phys_memory_base, info->phys_lcr_base);
 	} else {
-		ret = sprintf(buf, "%s:(E)ISA io:%04X irq:%d dma:%d",
+		seq_printf(m, "%s:(E)ISA io:%04X irq:%d dma:%d",
 			info->device_name, info->io_base, 
 			info->irq_level, info->dma_level);
 	}
@@ -3497,37 +3497,37 @@ static inline int line_info(char *buf, struct mgsl_struct *info)
 
 	if (info->params.mode == MGSL_MODE_HDLC ||
 	    info->params.mode == MGSL_MODE_RAW ) {
-		ret += sprintf(buf+ret, " HDLC txok:%d rxok:%d",
+		seq_printf(m, " HDLC txok:%d rxok:%d",
 			      info->icount.txok, info->icount.rxok);
 		if (info->icount.txunder)
-			ret += sprintf(buf+ret, " txunder:%d", info->icount.txunder);
+			seq_printf(m, " txunder:%d", info->icount.txunder);
 		if (info->icount.txabort)
-			ret += sprintf(buf+ret, " txabort:%d", info->icount.txabort);
+			seq_printf(m, " txabort:%d", info->icount.txabort);
 		if (info->icount.rxshort)
-			ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);	
+			seq_printf(m, " rxshort:%d", info->icount.rxshort);
 		if (info->icount.rxlong)
-			ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxlong);
+			seq_printf(m, " rxlong:%d", info->icount.rxlong);
 		if (info->icount.rxover)
-			ret += sprintf(buf+ret, " rxover:%d", info->icount.rxover);
+			seq_printf(m, " rxover:%d", info->icount.rxover);
 		if (info->icount.rxcrc)
-			ret += sprintf(buf+ret, " rxcrc:%d", info->icount.rxcrc);
+			seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
 	} else {
-		ret += sprintf(buf+ret, " ASYNC tx:%d rx:%d",
+		seq_printf(m, " ASYNC tx:%d rx:%d",
 			      info->icount.tx, info->icount.rx);
 		if (info->icount.frame)
-			ret += sprintf(buf+ret, " fe:%d", info->icount.frame);
+			seq_printf(m, " fe:%d", info->icount.frame);
 		if (info->icount.parity)
-			ret += sprintf(buf+ret, " pe:%d", info->icount.parity);
+			seq_printf(m, " pe:%d", info->icount.parity);
 		if (info->icount.brk)
-			ret += sprintf(buf+ret, " brk:%d", info->icount.brk);	
+			seq_printf(m, " brk:%d", info->icount.brk);
 		if (info->icount.overrun)
-			ret += sprintf(buf+ret, " oe:%d", info->icount.overrun);
+			seq_printf(m, " oe:%d", info->icount.overrun);
 	}
 	
 	/* Append serial signal status to end */
-	ret += sprintf(buf+ret, " %s\n", stat_buf+1);
+	seq_printf(m, " %s\n", stat_buf+1);
 	
-	ret += sprintf(buf+ret, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
+	seq_printf(m, "txactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
 	 info->tx_active,info->bh_requested,info->bh_running,
 	 info->pending_bh);
 	 
@@ -3544,60 +3544,40 @@ static inline int line_info(char *buf, struct mgsl_struct *info)
 	u16 Tmr = usc_InReg( info, TMR );
 	u16 Tccr = usc_InReg( info, TCCR );
 	u16 Ccar = inw( info->io_base + CCAR );
-	ret += sprintf(buf+ret, "tcsr=%04X tdmr=%04X ticr=%04X rcsr=%04X rdmr=%04X\n"
+	seq_printf(m, "tcsr=%04X tdmr=%04X ticr=%04X rcsr=%04X rdmr=%04X\n"
                         "ricr=%04X icr =%04X dccr=%04X tmr=%04X tccr=%04X ccar=%04X\n",
 	 		Tcsr,Tdmr,Ticr,Rscr,Rdmr,Ricr,Icr,Dccr,Tmr,Tccr,Ccar );
 	}
 	spin_unlock_irqrestore(&info->irq_spinlock,flags);
-	
-	return ret;
-	
-}	/* end of line_info() */
+}
 
-/* mgsl_read_proc()
- * 
- * Called to print information about devices
- * 
- * Arguments:
- * 	page	page of memory to hold returned info
- * 	start	
- * 	off
- * 	count
- * 	eof
- * 	data
- * 	
- * Return Value:
- */
-static int mgsl_read_proc(char *page, char **start, off_t off, int count,
-		 int *eof, void *data)
+/* Called to print information about devices */
+static int mgsl_proc_show(struct seq_file *m, void *v)
 {
-	int len = 0, l;
-	off_t	begin = 0;
 	struct mgsl_struct *info;
 	
-	len += sprintf(page, "synclink driver:%s\n", driver_version);
+	seq_printf(m, "synclink driver:%s\n", driver_version);
 	
 	info = mgsl_device_list;
 	while( info ) {
-		l = line_info(page + len, info);
-		len += l;
-		if (len+begin > off+count)
-			goto done;
-		if (len+begin < off) {
-			begin += len;
-			len = 0;
-		}
+		line_info(m, info);
 		info = info->next_device;
 	}
+	return 0;
+}
 
-	*eof = 1;
-done:
-	if (off >= len+begin)
-		return 0;
-	*start = page + (off-begin);
-	return ((count < begin+len-off) ? count : begin+len-off);
-	
-}	/* end of mgsl_read_proc() */
+static int mgsl_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, mgsl_proc_show, NULL);
+}
+
+static const struct file_operations mgsl_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= mgsl_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
 
 /* mgsl_allocate_dma_buffers()
  * 
@@ -4335,13 +4315,13 @@ static const struct tty_operations mgsl_ops = {
 	.send_xchar = mgsl_send_xchar,
 	.break_ctl = mgsl_break,
 	.wait_until_sent = mgsl_wait_until_sent,
- 	.read_proc = mgsl_read_proc,
 	.set_termios = mgsl_set_termios,
 	.stop = mgsl_stop,
 	.start = mgsl_start,
 	.hangup = mgsl_hangup,
 	.tiocmget = tiocmget,
 	.tiocmset = tiocmset,
+	.proc_fops = &mgsl_proc_fops,
 };
 
 /*
@@ -8007,10 +7987,17 @@ static void hdlcdev_rx(struct mgsl_struct *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -8038,11 +8025,8 @@ static int hdlcdev_init(struct mgsl_struct *info)
 	dev->dma       = info->dma_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops     = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c
index f329f45..5e25649 100644
--- a/drivers/char/synclink_gt.c
+++ b/drivers/char/synclink_gt.c
@@ -60,6 +60,7 @@
 #include <linux/ptrace.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
@@ -154,7 +155,6 @@ static void tx_hold(struct tty_struct *tty);
 static void tx_release(struct tty_struct *tty);
 
 static int  ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
-static int  read_proc(char *page, char **start, off_t off, int count,int *eof, void *data);
 static int  chars_in_buffer(struct tty_struct *tty);
 static void throttle(struct tty_struct * tty);
 static void unthrottle(struct tty_struct * tty);
@@ -298,6 +298,7 @@ struct slgt_info {
 
 	unsigned int rbuf_fill_level;
 	unsigned int if_mode;
+	unsigned int base_clock;
 
 	/* device status */
 
@@ -1156,22 +1157,26 @@ static long set_params32(struct slgt_info *info, struct MGSL_PARAMS32 __user *ne
 		return -EFAULT;
 
 	spin_lock(&info->lock);
-	info->params.mode            = tmp_params.mode;
-	info->params.loopback        = tmp_params.loopback;
-	info->params.flags           = tmp_params.flags;
-	info->params.encoding        = tmp_params.encoding;
-	info->params.clock_speed     = tmp_params.clock_speed;
-	info->params.addr_filter     = tmp_params.addr_filter;
-	info->params.crc_type        = tmp_params.crc_type;
-	info->params.preamble_length = tmp_params.preamble_length;
-	info->params.preamble        = tmp_params.preamble;
-	info->params.data_rate       = tmp_params.data_rate;
-	info->params.data_bits       = tmp_params.data_bits;
-	info->params.stop_bits       = tmp_params.stop_bits;
-	info->params.parity          = tmp_params.parity;
+	if (tmp_params.mode == MGSL_MODE_BASE_CLOCK) {
+		info->base_clock = tmp_params.clock_speed;
+	} else {
+		info->params.mode            = tmp_params.mode;
+		info->params.loopback        = tmp_params.loopback;
+		info->params.flags           = tmp_params.flags;
+		info->params.encoding        = tmp_params.encoding;
+		info->params.clock_speed     = tmp_params.clock_speed;
+		info->params.addr_filter     = tmp_params.addr_filter;
+		info->params.crc_type        = tmp_params.crc_type;
+		info->params.preamble_length = tmp_params.preamble_length;
+		info->params.preamble        = tmp_params.preamble;
+		info->params.data_rate       = tmp_params.data_rate;
+		info->params.data_bits       = tmp_params.data_bits;
+		info->params.stop_bits       = tmp_params.stop_bits;
+		info->params.parity          = tmp_params.parity;
+	}
 	spin_unlock(&info->lock);
 
- 	change_params(info);
+	program_hw(info);
 
 	return 0;
 }
@@ -1229,13 +1234,12 @@ static long slgt_compat_ioctl(struct tty_struct *tty, struct file *file,
 /*
  * proc fs support
  */
-static inline int line_info(char *buf, struct slgt_info *info)
+static inline void line_info(struct seq_file *m, struct slgt_info *info)
 {
 	char stat_buf[30];
-	int ret;
 	unsigned long flags;
 
-	ret = sprintf(buf, "%s: IO=%08X IRQ=%d MaxFrameSize=%u\n",
+	seq_printf(m, "%s: IO=%08X IRQ=%d MaxFrameSize=%u\n",
 		      info->device_name, info->phys_reg_addr,
 		      info->irq_level, info->max_frame_size);
 
@@ -1260,75 +1264,70 @@ static inline int line_info(char *buf, struct slgt_info *info)
 		strcat(stat_buf, "|RI");
 
 	if (info->params.mode != MGSL_MODE_ASYNC) {
-		ret += sprintf(buf+ret, "\tHDLC txok:%d rxok:%d",
+		seq_printf(m, "\tHDLC txok:%d rxok:%d",
 			       info->icount.txok, info->icount.rxok);
 		if (info->icount.txunder)
-			ret += sprintf(buf+ret, " txunder:%d", info->icount.txunder);
+			seq_printf(m, " txunder:%d", info->icount.txunder);
 		if (info->icount.txabort)
-			ret += sprintf(buf+ret, " txabort:%d", info->icount.txabort);
+			seq_printf(m, " txabort:%d", info->icount.txabort);
 		if (info->icount.rxshort)
-			ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);
+			seq_printf(m, " rxshort:%d", info->icount.rxshort);
 		if (info->icount.rxlong)
-			ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxlong);
+			seq_printf(m, " rxlong:%d", info->icount.rxlong);
 		if (info->icount.rxover)
-			ret += sprintf(buf+ret, " rxover:%d", info->icount.rxover);
+			seq_printf(m, " rxover:%d", info->icount.rxover);
 		if (info->icount.rxcrc)
-			ret += sprintf(buf+ret, " rxcrc:%d", info->icount.rxcrc);
+			seq_printf(m, " rxcrc:%d", info->icount.rxcrc);
 	} else {
-		ret += sprintf(buf+ret, "\tASYNC tx:%d rx:%d",
+		seq_printf(m, "\tASYNC tx:%d rx:%d",
 			       info->icount.tx, info->icount.rx);
 		if (info->icount.frame)
-			ret += sprintf(buf+ret, " fe:%d", info->icount.frame);
+			seq_printf(m, " fe:%d", info->icount.frame);
 		if (info->icount.parity)
-			ret += sprintf(buf+ret, " pe:%d", info->icount.parity);
+			seq_printf(m, " pe:%d", info->icount.parity);
 		if (info->icount.brk)
-			ret += sprintf(buf+ret, " brk:%d", info->icount.brk);
+			seq_printf(m, " brk:%d", info->icount.brk);
 		if (info->icount.overrun)
-			ret += sprintf(buf+ret, " oe:%d", info->icount.overrun);
+			seq_printf(m, " oe:%d", info->icount.overrun);
 	}
 
 	/* Append serial signal status to end */
-	ret += sprintf(buf+ret, " %s\n", stat_buf+1);
+	seq_printf(m, " %s\n", stat_buf+1);
 
-	ret += sprintf(buf+ret, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
+	seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
 		       info->tx_active,info->bh_requested,info->bh_running,
 		       info->pending_bh);
-
-	return ret;
 }
 
 /* Called to print information about devices
  */
-static int read_proc(char *page, char **start, off_t off, int count,
-		     int *eof, void *data)
+static int synclink_gt_proc_show(struct seq_file *m, void *v)
 {
-	int len = 0, l;
-	off_t	begin = 0;
 	struct slgt_info *info;
 
-	len += sprintf(page, "synclink_gt driver\n");
+	seq_puts(m, "synclink_gt driver\n");
 
 	info = slgt_device_list;
 	while( info ) {
-		l = line_info(page + len, info);
-		len += l;
-		if (len+begin > off+count)
-			goto done;
-		if (len+begin < off) {
-			begin += len;
-			len = 0;
-		}
+		line_info(m, info);
 		info = info->next_device;
 	}
+	return 0;
+}
 
-	*eof = 1;
-done:
-	if (off >= len+begin)
-		return 0;
-	*start = page + (off-begin);
-	return ((count < begin+len-off) ? count : begin+len-off);
+static int synclink_gt_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, synclink_gt_proc_show, NULL);
 }
 
+static const struct file_operations synclink_gt_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= synclink_gt_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /*
  * return count of bytes in transmit buffer
  */
@@ -1763,10 +1762,17 @@ static void hdlcdev_rx(struct slgt_info *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -1794,11 +1800,8 @@ static int hdlcdev_init(struct slgt_info *info)
 	dev->irq       = info->irq_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops	    = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
@@ -2561,10 +2564,13 @@ static int set_params(struct slgt_info *info, MGSL_PARAMS __user *new_params)
 		return -EFAULT;
 
 	spin_lock_irqsave(&info->lock, flags);
-	memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS));
+	if (tmp_params.mode == MGSL_MODE_BASE_CLOCK)
+		info->base_clock = tmp_params.clock_speed;
+	else
+		memcpy(&info->params, &tmp_params, sizeof(MGSL_PARAMS));
 	spin_unlock_irqrestore(&info->lock, flags);
 
- 	change_params(info);
+	program_hw(info);
 
 	return 0;
 }
@@ -3434,6 +3440,7 @@ static struct slgt_info *alloc_dev(int adapter_num, int port_num, struct pci_dev
 		info->magic = MGSL_MAGIC;
 		INIT_WORK(&info->task, bh_handler);
 		info->max_frame_size = 4096;
+		info->base_clock = 14745600;
 		info->rbuf_fill_level = DMABUFSIZE;
 		info->port.close_delay = 5*HZ/10;
 		info->port.closing_wait = 30*HZ;
@@ -3558,13 +3565,13 @@ static const struct tty_operations ops = {
 	.send_xchar = send_xchar,
 	.break_ctl = set_break,
 	.wait_until_sent = wait_until_sent,
- 	.read_proc = read_proc,
 	.set_termios = set_termios,
 	.stop = tx_hold,
 	.start = tx_release,
 	.hangup = hangup,
 	.tiocmget = tiocmget,
 	.tiocmset = tiocmset,
+	.proc_fops = &synclink_gt_proc_fops,
 };
 
 static void slgt_cleanup(void)
@@ -3781,7 +3788,7 @@ static void enable_loopback(struct slgt_info *info)
 static void set_rate(struct slgt_info *info, u32 rate)
 {
 	unsigned int div;
-	static unsigned int osc = 14745600;
+	unsigned int osc = info->base_clock;
 
 	/* div = osc/rate - 1
 	 *
@@ -4085,18 +4092,27 @@ static void async_mode(struct slgt_info *info)
 	 * 06  CTS      IRQ enable
 	 * 05  DCD      IRQ enable
 	 * 04  RI       IRQ enable
-	 * 03  reserved, must be zero
+	 * 03  0=16x sampling, 1=8x sampling
 	 * 02  1=txd->rxd internal loopback enable
 	 * 01  reserved, must be zero
 	 * 00  1=master IRQ enable
 	 */
 	val = BIT15 + BIT14 + BIT0;
+	/* JCR[8] : 1 = x8 async mode feature available */
+	if ((rd_reg32(info, JCR) & BIT8) && info->params.data_rate &&
+	    ((info->base_clock < (info->params.data_rate * 16)) ||
+	     (info->base_clock % (info->params.data_rate * 16)))) {
+		/* use 8x sampling */
+		val |= BIT3;
+		set_rate(info, info->params.data_rate * 8);
+	} else {
+		/* use 16x sampling */
+		set_rate(info, info->params.data_rate * 16);
+	}
 	wr_reg16(info, SCR, val);
 
 	slgt_irq_on(info, IRQ_RXBREAK | IRQ_RXOVER);
 
-	set_rate(info, info->params.data_rate * 16);
-
 	if (info->params.loopback)
 		enable_loopback(info);
 }
diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 7b0c5b2..26de60e 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -50,6 +50,7 @@
 #include <linux/ptrace.h>
 #include <linux/ioport.h>
 #include <linux/mm.h>
+#include <linux/seq_file.h>
 #include <linux/slab.h>
 #include <linux/netdevice.h>
 #include <linux/vmalloc.h>
@@ -520,7 +521,6 @@ static void tx_hold(struct tty_struct *tty);
 static void tx_release(struct tty_struct *tty);
 
 static int  ioctl(struct tty_struct *tty, struct file *file, unsigned int cmd, unsigned long arg);
-static int  read_proc(char *page, char **start, off_t off, int count,int *eof, void *data);
 static int  chars_in_buffer(struct tty_struct *tty);
 static void throttle(struct tty_struct * tty);
 static void unthrottle(struct tty_struct * tty);
@@ -1354,13 +1354,12 @@ static int ioctl(struct tty_struct *tty, struct file *file,
  * /proc fs routines....
  */
 
-static inline int line_info(char *buf, SLMP_INFO *info)
+static inline void line_info(struct seq_file *m, SLMP_INFO *info)
 {
 	char	stat_buf[30];
-	int	ret;
 	unsigned long flags;
 
-	ret = sprintf(buf, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
+	seq_printf(m, "%s: SCABase=%08x Mem=%08X StatusControl=%08x LCR=%08X\n"
 		       "\tIRQ=%d MaxFrameSize=%u\n",
 		info->device_name,
 		info->phys_sca_base,
@@ -1391,75 +1390,70 @@ static inline int line_info(char *buf, SLMP_INFO *info)
 		strcat(stat_buf, "|RI");
 
 	if (info->params.mode == MGSL_MODE_HDLC) {
-		ret += sprintf(buf+ret, "\tHDLC txok:%d rxok:%d",
+		seq_printf(m, "\tHDLC txok:%d rxok:%d",
 			      info->icount.txok, info->icount.rxok);
 		if (info->icount.txunder)
-			ret += sprintf(buf+ret, " txunder:%d", info->icount.txunder);
+			seq_printf(m, " txunder:%d", info->icount.txunder);
 		if (info->icount.txabort)
-			ret += sprintf(buf+ret, " txabort:%d", info->icount.txabort);
+			seq_printf(m, " txabort:%d", info->icount.txabort);
 		if (info->icount.rxshort)
-			ret += sprintf(buf+ret, " rxshort:%d", info->icount.rxshort);
+			seq_printf(m, " rxshort:%d", info->icount.rxshort);
 		if (info->icount.rxlong)
-			ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxlong);
+			seq_printf(m, " rxlong:%d", info->icount.rxlong);
 		if (info->icount.rxover)
-			ret += sprintf(buf+ret, " rxover:%d", info->icount.rxover);
+			seq_printf(m, " rxover:%d", info->icount.rxover);
 		if (info->icount.rxcrc)
-			ret += sprintf(buf+ret, " rxlong:%d", info->icount.rxcrc);
+			seq_printf(m, " rxlong:%d", info->icount.rxcrc);
 	} else {
-		ret += sprintf(buf+ret, "\tASYNC tx:%d rx:%d",
+		seq_printf(m, "\tASYNC tx:%d rx:%d",
 			      info->icount.tx, info->icount.rx);
 		if (info->icount.frame)
-			ret += sprintf(buf+ret, " fe:%d", info->icount.frame);
+			seq_printf(m, " fe:%d", info->icount.frame);
 		if (info->icount.parity)
-			ret += sprintf(buf+ret, " pe:%d", info->icount.parity);
+			seq_printf(m, " pe:%d", info->icount.parity);
 		if (info->icount.brk)
-			ret += sprintf(buf+ret, " brk:%d", info->icount.brk);
+			seq_printf(m, " brk:%d", info->icount.brk);
 		if (info->icount.overrun)
-			ret += sprintf(buf+ret, " oe:%d", info->icount.overrun);
+			seq_printf(m, " oe:%d", info->icount.overrun);
 	}
 
 	/* Append serial signal status to end */
-	ret += sprintf(buf+ret, " %s\n", stat_buf+1);
+	seq_printf(m, " %s\n", stat_buf+1);
 
-	ret += sprintf(buf+ret, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
+	seq_printf(m, "\ttxactive=%d bh_req=%d bh_run=%d pending_bh=%x\n",
 	 info->tx_active,info->bh_requested,info->bh_running,
 	 info->pending_bh);
-
-	return ret;
 }
 
 /* Called to print information about devices
  */
-static int read_proc(char *page, char **start, off_t off, int count,
-	      int *eof, void *data)
+static int synclinkmp_proc_show(struct seq_file *m, void *v)
 {
-	int len = 0, l;
-	off_t	begin = 0;
 	SLMP_INFO *info;
 
-	len += sprintf(page, "synclinkmp driver:%s\n", driver_version);
+	seq_printf(m, "synclinkmp driver:%s\n", driver_version);
 
 	info = synclinkmp_device_list;
 	while( info ) {
-		l = line_info(page + len, info);
-		len += l;
-		if (len+begin > off+count)
-			goto done;
-		if (len+begin < off) {
-			begin += len;
-			len = 0;
-		}
+		line_info(m, info);
 		info = info->next_device;
 	}
+	return 0;
+}
 
-	*eof = 1;
-done:
-	if (off >= len+begin)
-		return 0;
-	*start = page + (off-begin);
-	return ((count < begin+len-off) ? count : begin+len-off);
+static int synclinkmp_proc_open(struct inode *inode, struct file *file)
+{
+	return single_open(file, synclinkmp_proc_show, NULL);
 }
 
+static const struct file_operations synclinkmp_proc_fops = {
+	.owner		= THIS_MODULE,
+	.open		= synclinkmp_proc_open,
+	.read		= seq_read,
+	.llseek		= seq_lseek,
+	.release	= single_release,
+};
+
 /* Return the count of bytes in transmit buffer
  */
 static int chars_in_buffer(struct tty_struct *tty)
@@ -1907,10 +1901,17 @@ static void hdlcdev_rx(SLMP_INFO *info, char *buf, int size)
 	dev->stats.rx_bytes += size;
 
 	netif_rx(skb);
-
-	dev->last_rx = jiffies;
 }
 
+static const struct net_device_ops hdlcdev_ops = {
+	.ndo_open       = hdlcdev_open,
+	.ndo_stop       = hdlcdev_close,
+	.ndo_change_mtu = hdlc_change_mtu,
+	.ndo_start_xmit = hdlc_start_xmit,
+	.ndo_do_ioctl   = hdlcdev_ioctl,
+	.ndo_tx_timeout = hdlcdev_tx_timeout,
+};
+
 /**
  * called by device driver when adding device instance
  * do generic HDLC initialization
@@ -1938,11 +1939,8 @@ static int hdlcdev_init(SLMP_INFO *info)
 	dev->irq       = info->irq_level;
 
 	/* network layer callbacks and settings */
-	dev->do_ioctl       = hdlcdev_ioctl;
-	dev->open           = hdlcdev_open;
-	dev->stop           = hdlcdev_close;
-	dev->tx_timeout     = hdlcdev_tx_timeout;
-	dev->watchdog_timeo = 10*HZ;
+	dev->netdev_ops	    = &hdlcdev_ops;
+	dev->watchdog_timeo = 10 * HZ;
 	dev->tx_queue_len   = 50;
 
 	/* generic HDLC layer callbacks and settings */
@@ -3901,13 +3899,13 @@ static const struct tty_operations ops = {
 	.send_xchar = send_xchar,
 	.break_ctl = set_break,
 	.wait_until_sent = wait_until_sent,
- 	.read_proc = read_proc,
 	.set_termios = set_termios,
 	.stop = tx_hold,
 	.start = tx_release,
 	.hangup = hangup,
 	.tiocmget = tiocmget,
 	.tiocmset = tiocmset,
+	.proc_fops = &synclinkmp_proc_fops,
 };
 
 
diff --git a/drivers/char/sysrq.c b/drivers/char/sysrq.c
index 33a9351..b0a6a3e 100644
--- a/drivers/char/sysrq.c
+++ b/drivers/char/sysrq.c
@@ -35,7 +35,6 @@
 #include <linux/vt_kern.h>
 #include <linux/workqueue.h>
 #include <linux/kexec.h>
-#include <linux/irq.h>
 #include <linux/hrtimer.h>
 #include <linux/oom.h>
 
@@ -283,7 +282,7 @@ static void sysrq_ftrace_dump(int key, struct tty_struct *tty)
 }
 static struct sysrq_key_op sysrq_ftrace_dump_op = {
 	.handler	= sysrq_ftrace_dump,
-	.help_msg	= "dumpZ-ftrace-buffer",
+	.help_msg	= "dump-ftrace-buffer(Z)",
 	.action_msg	= "Dump ftrace buffer",
 	.enable_mask	= SYSRQ_ENABLE_DUMP,
 };
@@ -346,6 +345,19 @@ static struct sysrq_key_op sysrq_moom_op = {
 	.enable_mask	= SYSRQ_ENABLE_SIGNAL,
 };
 
+#ifdef CONFIG_BLOCK
+static void sysrq_handle_thaw(int key, struct tty_struct *tty)
+{
+	emergency_thaw_all();
+}
+static struct sysrq_key_op sysrq_thaw_op = {
+	.handler	= sysrq_handle_thaw,
+	.help_msg	= "thaw-filesystems(J)",
+	.action_msg	= "Emergency Thaw of all frozen filesystems",
+	.enable_mask	= SYSRQ_ENABLE_SIGNAL,
+};
+#endif
+
 static void sysrq_handle_kill(int key, struct tty_struct *tty)
 {
 	send_sig_all(SIGKILL);
@@ -396,9 +408,13 @@ static struct sysrq_key_op *sysrq_key_table[36] = {
 	&sysrq_moom_op,			/* f */
 	/* g: May be registered by ppc for kgdb */
 	NULL,				/* g */
-	NULL,				/* h */
+	NULL,				/* h - reserved for help */
 	&sysrq_kill_op,			/* i */
+#ifdef CONFIG_BLOCK
+	&sysrq_thaw_op,			/* j */
+#else
 	NULL,				/* j */
+#endif
 	&sysrq_SAK_op,			/* k */
 #ifdef CONFIG_SMP
 	&sysrq_showallcpus_op,		/* l */
diff --git a/drivers/char/tpm/tpm.c b/drivers/char/tpm/tpm.c
index 9c47dc4..ccdd828 100644
--- a/drivers/char/tpm/tpm.c
+++ b/drivers/char/tpm/tpm.c
@@ -429,134 +429,148 @@ out:
 #define TPM_DIGEST_SIZE 20
 #define TPM_ERROR_SIZE 10
 #define TPM_RET_CODE_IDX 6
-#define TPM_GET_CAP_RET_SIZE_IDX 10
-#define TPM_GET_CAP_RET_UINT32_1_IDX 14
-#define TPM_GET_CAP_RET_UINT32_2_IDX 18
-#define TPM_GET_CAP_RET_UINT32_3_IDX 22
-#define TPM_GET_CAP_RET_UINT32_4_IDX 26
-#define TPM_GET_CAP_PERM_DISABLE_IDX 16
-#define TPM_GET_CAP_PERM_INACTIVE_IDX 18
-#define TPM_GET_CAP_RET_BOOL_1_IDX 14
-#define TPM_GET_CAP_TEMP_INACTIVE_IDX 16
-
-#define TPM_CAP_IDX 13
-#define TPM_CAP_SUBCAP_IDX 21
 
 enum tpm_capabilities {
-	TPM_CAP_FLAG = 4,
-	TPM_CAP_PROP = 5,
+	TPM_CAP_FLAG = cpu_to_be32(4),
+	TPM_CAP_PROP = cpu_to_be32(5),
+	CAP_VERSION_1_1 = cpu_to_be32(0x06),
+	CAP_VERSION_1_2 = cpu_to_be32(0x1A)
 };
 
 enum tpm_sub_capabilities {
-	TPM_CAP_PROP_PCR = 0x1,
-	TPM_CAP_PROP_MANUFACTURER = 0x3,
-	TPM_CAP_FLAG_PERM = 0x8,
-	TPM_CAP_FLAG_VOL = 0x9,
-	TPM_CAP_PROP_OWNER = 0x11,
-	TPM_CAP_PROP_TIS_TIMEOUT = 0x15,
-	TPM_CAP_PROP_TIS_DURATION = 0x20,
-};
+	TPM_CAP_PROP_PCR = cpu_to_be32(0x101),
+	TPM_CAP_PROP_MANUFACTURER = cpu_to_be32(0x103),
+	TPM_CAP_FLAG_PERM = cpu_to_be32(0x108),
+	TPM_CAP_FLAG_VOL = cpu_to_be32(0x109),
+	TPM_CAP_PROP_OWNER = cpu_to_be32(0x111),
+	TPM_CAP_PROP_TIS_TIMEOUT = cpu_to_be32(0x115),
+	TPM_CAP_PROP_TIS_DURATION = cpu_to_be32(0x120),
 
-/*
- * This is a semi generic GetCapability command for use
- * with the capability type TPM_CAP_PROP or TPM_CAP_FLAG
- * and their associated sub_capabilities.
- */
-
-static const u8 tpm_cap[] = {
-	0, 193,			/* TPM_TAG_RQU_COMMAND */
-	0, 0, 0, 22,		/* length */
-	0, 0, 0, 101,		/* TPM_ORD_GetCapability */
-	0, 0, 0, 0,		/* TPM_CAP_<TYPE> */
-	0, 0, 0, 4,		/* TPM_CAP_SUB_<TYPE> size */
-	0, 0, 1, 0		/* TPM_CAP_SUB_<TYPE> */
 };
 
-static ssize_t transmit_cmd(struct tpm_chip *chip, u8 *data, int len,
-			    char *desc)
+static ssize_t transmit_cmd(struct tpm_chip *chip, struct tpm_cmd_t *cmd,
+			    int len, const char *desc)
 {
 	int err;
 
-	len = tpm_transmit(chip, data, len);
+	len = tpm_transmit(chip,(u8 *) cmd, len);
 	if (len <  0)
 		return len;
 	if (len == TPM_ERROR_SIZE) {
-		err = be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX)));
+		err = be32_to_cpu(cmd->header.out.return_code);
 		dev_dbg(chip->dev, "A TPM error (%d) occurred %s\n", err, desc);
 		return err;
 	}
 	return 0;
 }
 
+#define TPM_INTERNAL_RESULT_SIZE 200
+#define TPM_TAG_RQU_COMMAND cpu_to_be16(193)
+#define TPM_ORD_GET_CAP cpu_to_be32(101)
+
+static const struct tpm_input_header tpm_getcap_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(22),
+	.ordinal = TPM_ORD_GET_CAP
+};
+
+ssize_t tpm_getcap(struct device *dev, __be32 subcap_id, cap_t *cap,
+		   const char *desc)
+{
+	struct tpm_cmd_t tpm_cmd;
+	int rc;
+	struct tpm_chip *chip = dev_get_drvdata(dev);
+
+	tpm_cmd.header.in = tpm_getcap_header;
+	if (subcap_id == CAP_VERSION_1_1 || subcap_id == CAP_VERSION_1_2) {
+		tpm_cmd.params.getcap_in.cap = subcap_id;
+		/*subcap field not necessary */
+		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(0);
+		tpm_cmd.header.in.length -= cpu_to_be32(sizeof(__be32));
+	} else {
+		if (subcap_id == TPM_CAP_FLAG_PERM ||
+		    subcap_id == TPM_CAP_FLAG_VOL)
+			tpm_cmd.params.getcap_in.cap = TPM_CAP_FLAG;
+		else
+			tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+		tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+		tpm_cmd.params.getcap_in.subcap = subcap_id;
+	}
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE, desc);
+	if (!rc)
+		*cap = tpm_cmd.params.getcap_out.cap;
+	return rc;
+}
+
 void tpm_gen_interrupt(struct tpm_chip *chip)
 {
-	u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)];
+	struct	tpm_cmd_t tpm_cmd;
 	ssize_t rc;
 
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT;
+	tpm_cmd.header.in = tpm_getcap_header;
+	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
 
-	rc = transmit_cmd(chip, data, sizeof(data),
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
 			"attempting to determine the timeouts");
 }
 EXPORT_SYMBOL_GPL(tpm_gen_interrupt);
 
 void tpm_get_timeouts(struct tpm_chip *chip)
 {
-	u8 data[max_t(int, ARRAY_SIZE(tpm_cap), 30)];
+	struct tpm_cmd_t tpm_cmd;
+	struct timeout_t *timeout_cap;
+	struct duration_t *duration_cap;
 	ssize_t rc;
 	u32 timeout;
 
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_TIMEOUT;
+	tpm_cmd.header.in = tpm_getcap_header;
+	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_TIMEOUT;
 
-	rc = transmit_cmd(chip, data, sizeof(data),
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
 			"attempting to determine the timeouts");
 	if (rc)
 		goto duration;
 
-	if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX)))
+	if (be32_to_cpu(tpm_cmd.header.out.length)
 	    != 4 * sizeof(u32))
 		goto duration;
 
+	timeout_cap = &tpm_cmd.params.getcap_out.cap.timeout;
 	/* Don't overwrite default if value is 0 */
-	timeout =
-	    be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX)));
+	timeout = be32_to_cpu(timeout_cap->a);
 	if (timeout)
 		chip->vendor.timeout_a = usecs_to_jiffies(timeout);
-	timeout =
-	    be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_2_IDX)));
+	timeout = be32_to_cpu(timeout_cap->b);
 	if (timeout)
 		chip->vendor.timeout_b = usecs_to_jiffies(timeout);
-	timeout =
-	    be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_3_IDX)));
+	timeout = be32_to_cpu(timeout_cap->c);
 	if (timeout)
 		chip->vendor.timeout_c = usecs_to_jiffies(timeout);
-	timeout =
-	    be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_4_IDX)));
+	timeout = be32_to_cpu(timeout_cap->d);
 	if (timeout)
 		chip->vendor.timeout_d = usecs_to_jiffies(timeout);
 
 duration:
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_TIS_DURATION;
+	tpm_cmd.header.in = tpm_getcap_header;
+	tpm_cmd.params.getcap_in.cap = TPM_CAP_PROP;
+	tpm_cmd.params.getcap_in.subcap_size = cpu_to_be32(4);
+	tpm_cmd.params.getcap_in.subcap = TPM_CAP_PROP_TIS_DURATION;
 
-	rc = transmit_cmd(chip, data, sizeof(data),
+	rc = transmit_cmd(chip, &tpm_cmd, TPM_INTERNAL_RESULT_SIZE,
 			"attempting to determine the durations");
 	if (rc)
 		return;
 
-	if (be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_SIZE_IDX)))
+	if (be32_to_cpu(tpm_cmd.header.out.return_code)
 	    != 3 * sizeof(u32))
 		return;
-
+	duration_cap = &tpm_cmd.params.getcap_out.cap.duration;
 	chip->vendor.duration[TPM_SHORT] =
-	    usecs_to_jiffies(be32_to_cpu
-			     (*((__be32 *) (data +
-					    TPM_GET_CAP_RET_UINT32_1_IDX))));
+	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_short));
 	/* The Broadcom BCM0102 chipset in a Dell Latitude D820 gets the above
 	 * value wrong and apparently reports msecs rather than usecs. So we
 	 * fix up the resulting too-small TPM_SHORT value to make things work.
@@ -565,13 +579,9 @@ duration:
 		chip->vendor.duration[TPM_SHORT] = HZ;
 
 	chip->vendor.duration[TPM_MEDIUM] =
-	    usecs_to_jiffies(be32_to_cpu
-			     (*((__be32 *) (data +
-					    TPM_GET_CAP_RET_UINT32_2_IDX))));
+	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_medium));
 	chip->vendor.duration[TPM_LONG] =
-	    usecs_to_jiffies(be32_to_cpu
-			     (*((__be32 *) (data +
-					    TPM_GET_CAP_RET_UINT32_3_IDX))));
+	    usecs_to_jiffies(be32_to_cpu(duration_cap->tpm_long));
 }
 EXPORT_SYMBOL_GPL(tpm_get_timeouts);
 
@@ -587,36 +597,18 @@ void tpm_continue_selftest(struct tpm_chip *chip)
 }
 EXPORT_SYMBOL_GPL(tpm_continue_selftest);
 
-#define  TPM_INTERNAL_RESULT_SIZE 200
-
 ssize_t tpm_show_enabled(struct device * dev, struct device_attribute * attr,
 			char *buf)
 {
-	u8 *data;
+	cap_t cap;
 	ssize_t rc;
 
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
-
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_FLAG;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM;
-
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
-			"attemtping to determine the permanent enabled state");
-	if (rc) {
-		kfree(data);
+	rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
+			 "attempting to determine the permanent enabled state");
+	if (rc)
 		return 0;
-	}
-
-	rc = sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_DISABLE_IDX]);
 
-	kfree(data);
+	rc = sprintf(buf, "%d\n", !cap.perm_flags.disable);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_show_enabled);
@@ -624,31 +616,15 @@ EXPORT_SYMBOL_GPL(tpm_show_enabled);
 ssize_t tpm_show_active(struct device * dev, struct device_attribute * attr,
 			char *buf)
 {
-	u8 *data;
+	cap_t cap;
 	ssize_t rc;
 
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
-
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_FLAG;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_PERM;
-
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
-			"attemtping to determine the permanent active state");
-	if (rc) {
-		kfree(data);
+	rc = tpm_getcap(dev, TPM_CAP_FLAG_PERM, &cap,
+			 "attempting to determine the permanent active state");
+	if (rc)
 		return 0;
-	}
 
-	rc = sprintf(buf, "%d\n", !data[TPM_GET_CAP_PERM_INACTIVE_IDX]);
-
-	kfree(data);
+	rc = sprintf(buf, "%d\n", !cap.perm_flags.deactivated);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_show_active);
@@ -656,31 +632,15 @@ EXPORT_SYMBOL_GPL(tpm_show_active);
 ssize_t tpm_show_owned(struct device * dev, struct device_attribute * attr,
 			char *buf)
 {
-	u8 *data;
+	cap_t cap;
 	ssize_t rc;
 
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
-
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_OWNER;
-
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
-			"attempting to determine the owner state");
-	if (rc) {
-		kfree(data);
+	rc = tpm_getcap(dev, TPM_CAP_PROP_OWNER, &cap,
+			 "attempting to determine the owner state");
+	if (rc)
 		return 0;
-	}
-
-	rc = sprintf(buf, "%d\n", data[TPM_GET_CAP_RET_BOOL_1_IDX]);
 
-	kfree(data);
+	rc = sprintf(buf, "%d\n", cap.owned);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_show_owned);
@@ -688,116 +648,180 @@ EXPORT_SYMBOL_GPL(tpm_show_owned);
 ssize_t tpm_show_temp_deactivated(struct device * dev,
 				struct device_attribute * attr, char *buf)
 {
-	u8 *data;
+	cap_t cap;
 	ssize_t rc;
 
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
+	rc = tpm_getcap(dev, TPM_CAP_FLAG_VOL, &cap,
+			 "attempting to determine the temporary state");
+	if (rc)
+		return 0;
 
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
+	rc = sprintf(buf, "%d\n", cap.stclear_flags.deactivated);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
 
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_FLAG;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_FLAG_VOL;
+/*
+ * tpm_chip_find_get - return tpm_chip for given chip number
+ */
+static struct tpm_chip *tpm_chip_find_get(int chip_num)
+{
+	struct tpm_chip *pos, *chip = NULL;
 
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
-			"attempting to determine the temporary state");
-	if (rc) {
-		kfree(data);
-		return 0;
+	rcu_read_lock();
+	list_for_each_entry_rcu(pos, &tpm_chip_list, list) {
+		if (chip_num != TPM_ANY_NUM && chip_num != pos->dev_num)
+			continue;
+
+		if (try_module_get(pos->dev->driver->owner)) {
+			chip = pos;
+			break;
+		}
 	}
+	rcu_read_unlock();
+	return chip;
+}
 
-	rc = sprintf(buf, "%d\n", data[TPM_GET_CAP_TEMP_INACTIVE_IDX]);
+#define TPM_ORDINAL_PCRREAD cpu_to_be32(21)
+#define READ_PCR_RESULT_SIZE 30
+static struct tpm_input_header pcrread_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(14),
+	.ordinal = TPM_ORDINAL_PCRREAD
+};
 
-	kfree(data);
+int __tpm_pcr_read(struct tpm_chip *chip, int pcr_idx, u8 *res_buf)
+{
+	int rc;
+	struct tpm_cmd_t cmd;
+
+	cmd.header.in = pcrread_header;
+	cmd.params.pcrread_in.pcr_idx = cpu_to_be32(pcr_idx);
+	BUILD_BUG_ON(cmd.header.in.length > READ_PCR_RESULT_SIZE);
+	rc = transmit_cmd(chip, &cmd, cmd.header.in.length,
+			  "attempting to read a pcr value");
+
+	if (rc == 0)
+		memcpy(res_buf, cmd.params.pcrread_out.pcr_result,
+		       TPM_DIGEST_SIZE);
 	return rc;
 }
-EXPORT_SYMBOL_GPL(tpm_show_temp_deactivated);
 
-static const u8 pcrread[] = {
-	0, 193,			/* TPM_TAG_RQU_COMMAND */
-	0, 0, 0, 14,		/* length */
-	0, 0, 0, 21,		/* TPM_ORD_PcrRead */
-	0, 0, 0, 0		/* PCR index */
+/**
+ * tpm_pcr_read - read a pcr value
+ * @chip_num: 	tpm idx # or ANY
+ * @pcr_idx:	pcr idx to retrieve
+ * @res_buf: 	TPM_PCR value
+ * 		size of res_buf is 20 bytes (or NULL if you don't care)
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+int tpm_pcr_read(u32 chip_num, int pcr_idx, u8 *res_buf)
+{
+	struct tpm_chip *chip;
+	int rc;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+	rc = __tpm_pcr_read(chip, pcr_idx, res_buf);
+	module_put(chip->dev->driver->owner);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_read);
+
+/**
+ * tpm_pcr_extend - extend pcr value with hash
+ * @chip_num: 	tpm idx # or AN&
+ * @pcr_idx:	pcr idx to extend
+ * @hash: 	hash value used to extend pcr value
+ *
+ * The TPM driver should be built-in, but for whatever reason it
+ * isn't, protect against the chip disappearing, by incrementing
+ * the module usage count.
+ */
+#define TPM_ORD_PCR_EXTEND cpu_to_be32(20)
+#define EXTEND_PCR_SIZE 34
+static struct tpm_input_header pcrextend_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(34),
+	.ordinal = TPM_ORD_PCR_EXTEND
 };
 
+int tpm_pcr_extend(u32 chip_num, int pcr_idx, const u8 *hash)
+{
+	struct tpm_cmd_t cmd;
+	int rc;
+	struct tpm_chip *chip;
+
+	chip = tpm_chip_find_get(chip_num);
+	if (chip == NULL)
+		return -ENODEV;
+
+	cmd.header.in = pcrextend_header;
+	BUILD_BUG_ON(be32_to_cpu(cmd.header.in.length) > EXTEND_PCR_SIZE);
+	cmd.params.pcrextend_in.pcr_idx = cpu_to_be32(pcr_idx);
+	memcpy(cmd.params.pcrextend_in.hash, hash, TPM_DIGEST_SIZE);
+	rc = transmit_cmd(chip, &cmd, cmd.header.in.length,
+			  "attempting extend a PCR value");
+
+	module_put(chip->dev->driver->owner);
+	return rc;
+}
+EXPORT_SYMBOL_GPL(tpm_pcr_extend);
+
 ssize_t tpm_show_pcrs(struct device *dev, struct device_attribute *attr,
 		      char *buf)
 {
-	u8 *data;
+	cap_t cap;
+	u8 digest[TPM_DIGEST_SIZE];
 	ssize_t rc;
 	int i, j, num_pcrs;
-	__be32 index;
 	char *str = buf;
-
 	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
 
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_PCR;
-
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
+	rc = tpm_getcap(dev, TPM_CAP_PROP_PCR, &cap,
 			"attempting to determine the number of PCRS");
-	if (rc) {
-		kfree(data);
+	if (rc)
 		return 0;
-	}
 
-	num_pcrs = be32_to_cpu(*((__be32 *) (data + 14)));
+	num_pcrs = be32_to_cpu(cap.num_pcrs);
 	for (i = 0; i < num_pcrs; i++) {
-		memcpy(data, pcrread, sizeof(pcrread));
-		index = cpu_to_be32(i);
-		memcpy(data + 10, &index, 4);
-		rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
-				"attempting to read a PCR");
+		rc = __tpm_pcr_read(chip, i, digest);
 		if (rc)
-			goto out;
+			break;
 		str += sprintf(str, "PCR-%02d: ", i);
 		for (j = 0; j < TPM_DIGEST_SIZE; j++)
-			str += sprintf(str, "%02X ", *(data + 10 + j));
+			str += sprintf(str, "%02X ", digest[j]);
 		str += sprintf(str, "\n");
 	}
-out:
-	kfree(data);
 	return str - buf;
 }
 EXPORT_SYMBOL_GPL(tpm_show_pcrs);
 
 #define  READ_PUBEK_RESULT_SIZE 314
-static const u8 readpubek[] = {
-	0, 193,			/* TPM_TAG_RQU_COMMAND */
-	0, 0, 0, 30,		/* length */
-	0, 0, 0, 124,		/* TPM_ORD_ReadPubek */
+#define TPM_ORD_READPUBEK cpu_to_be32(124)
+struct tpm_input_header tpm_readpubek_header = {
+	.tag = TPM_TAG_RQU_COMMAND,
+	.length = cpu_to_be32(30),
+	.ordinal = TPM_ORD_READPUBEK
 };
 
 ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
 		       char *buf)
 {
 	u8 *data;
+	struct tpm_cmd_t tpm_cmd;
 	ssize_t err;
 	int i, rc;
 	char *str = buf;
 
 	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
 
-	data = kzalloc(READ_PUBEK_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, readpubek, sizeof(readpubek));
-
-	err = transmit_cmd(chip, data, READ_PUBEK_RESULT_SIZE,
+	tpm_cmd.header.in = tpm_readpubek_header;
+	err = transmit_cmd(chip, &tpm_cmd, READ_PUBEK_RESULT_SIZE,
 			"attempting to read the PUBEK");
 	if (err)
 		goto out;
@@ -812,7 +836,7 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
 	   256 byte modulus
 	   ignore checksum 20 bytes
 	 */
-
+	data = tpm_cmd.params.readpubek_out_buffer;
 	str +=
 	    sprintf(str,
 		    "Algorithm: %02X %02X %02X %02X\nEncscheme: %02X %02X\n"
@@ -832,65 +856,33 @@ ssize_t tpm_show_pubek(struct device *dev, struct device_attribute *attr,
 	}
 out:
 	rc = str - buf;
-	kfree(data);
 	return rc;
 }
 EXPORT_SYMBOL_GPL(tpm_show_pubek);
 
-#define CAP_VERSION_1_1 6
-#define CAP_VERSION_1_2 0x1A
-#define CAP_VERSION_IDX 13
-static const u8 cap_version[] = {
-	0, 193,			/* TPM_TAG_RQU_COMMAND */
-	0, 0, 0, 18,		/* length */
-	0, 0, 0, 101,		/* TPM_ORD_GetCapability */
-	0, 0, 0, 0,
-	0, 0, 0, 0
-};
 
 ssize_t tpm_show_caps(struct device *dev, struct device_attribute *attr,
 		      char *buf)
 {
-	u8 *data;
+	cap_t cap;
 	ssize_t rc;
 	char *str = buf;
 
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
-
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER;
-
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
+	rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
 			"attempting to determine the manufacturer");
-	if (rc) {
-		kfree(data);
+	if (rc)
 		return 0;
-	}
-
 	str += sprintf(str, "Manufacturer: 0x%x\n",
-		       be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX))));
+		       be32_to_cpu(cap.manufacturer_id));
 
-	memcpy(data, cap_version, sizeof(cap_version));
-	data[CAP_VERSION_IDX] = CAP_VERSION_1_1;
-	rc = transmit_cmd(chip, data, TPM_INTERNAL_RESULT_SIZE,
-			"attempting to determine the 1.1 version");
+	rc = tpm_getcap(dev, CAP_VERSION_1_1, &cap,
+		        "attempting to determine the 1.1 version");
 	if (rc)
-		goto out;
-
+		return 0;
 	str += sprintf(str,
 		       "TCG version: %d.%d\nFirmware version: %d.%d\n",
-		       (int) data[14], (int) data[15], (int) data[16],
-		       (int) data[17]);
-
-out:
-	kfree(data);
+		       cap.tpm_version.Major, cap.tpm_version.Minor,
+		       cap.tpm_version.revMajor, cap.tpm_version.revMinor);
 	return str - buf;
 }
 EXPORT_SYMBOL_GPL(tpm_show_caps);
@@ -898,51 +890,25 @@ EXPORT_SYMBOL_GPL(tpm_show_caps);
 ssize_t tpm_show_caps_1_2(struct device * dev,
 			  struct device_attribute * attr, char *buf)
 {
-	u8 *data;
-	ssize_t len;
+	cap_t cap;
+	ssize_t rc;
 	char *str = buf;
 
-	struct tpm_chip *chip = dev_get_drvdata(dev);
-	if (chip == NULL)
-		return -ENODEV;
-
-	data = kzalloc(TPM_INTERNAL_RESULT_SIZE, GFP_KERNEL);
-	if (!data)
-		return -ENOMEM;
-
-	memcpy(data, tpm_cap, sizeof(tpm_cap));
-	data[TPM_CAP_IDX] = TPM_CAP_PROP;
-	data[TPM_CAP_SUBCAP_IDX] = TPM_CAP_PROP_MANUFACTURER;
-
-	len = tpm_transmit(chip, data, TPM_INTERNAL_RESULT_SIZE);
-	if (len <= TPM_ERROR_SIZE) {
-		dev_dbg(chip->dev, "A TPM error (%d) occurred "
-			"attempting to determine the manufacturer\n",
-			be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))));
-		kfree(data);
+	rc = tpm_getcap(dev, TPM_CAP_PROP_MANUFACTURER, &cap,
+			"attempting to determine the manufacturer");
+	if (rc)
 		return 0;
-	}
-
 	str += sprintf(str, "Manufacturer: 0x%x\n",
-		       be32_to_cpu(*((__be32 *) (data + TPM_GET_CAP_RET_UINT32_1_IDX))));
-
-	memcpy(data, cap_version, sizeof(cap_version));
-	data[CAP_VERSION_IDX] = CAP_VERSION_1_2;
-
-	len = tpm_transmit(chip, data, TPM_INTERNAL_RESULT_SIZE);
-	if (len <= TPM_ERROR_SIZE) {
-		dev_err(chip->dev, "A TPM error (%d) occurred "
-			"attempting to determine the 1.2 version\n",
-			be32_to_cpu(*((__be32 *) (data + TPM_RET_CODE_IDX))));
-		goto out;
-	}
+		       be32_to_cpu(cap.manufacturer_id));
+	rc = tpm_getcap(dev, CAP_VERSION_1_2, &cap,
+			 "attempting to determine the 1.2 version");
+	if (rc)
+		return 0;
 	str += sprintf(str,
 		       "TCG version: %d.%d\nFirmware version: %d.%d\n",
-		       (int) data[16], (int) data[17], (int) data[18],
-		       (int) data[19]);
-
-out:
-	kfree(data);
+		       cap.tpm_version_1_2.Major, cap.tpm_version_1_2.Minor,
+		       cap.tpm_version_1_2.revMajor,
+		       cap.tpm_version_1_2.revMinor);
 	return str - buf;
 }
 EXPORT_SYMBOL_GPL(tpm_show_caps_1_2);
diff --git a/drivers/char/tpm/tpm.h b/drivers/char/tpm/tpm.h
index 8e30df4..8e00b4d 100644
--- a/drivers/char/tpm/tpm.h
+++ b/drivers/char/tpm/tpm.h
@@ -26,6 +26,7 @@
 #include <linux/miscdevice.h>
 #include <linux/platform_device.h>
 #include <linux/io.h>
+#include <linux/tpm.h>
 
 enum tpm_timeout {
 	TPM_TIMEOUT = 5,	/* msecs */
@@ -123,6 +124,147 @@ static inline void tpm_write_index(int base, int index, int value)
 	outb(index, base);
 	outb(value & 0xFF, base+1);
 }
+struct tpm_input_header {
+	__be16	tag;
+	__be32	length;
+	__be32	ordinal;
+}__attribute__((packed));
+
+struct tpm_output_header {
+	__be16	tag;
+	__be32	length;
+	__be32	return_code;
+}__attribute__((packed));
+
+struct	stclear_flags_t {
+	__be16	tag;
+	u8	deactivated;
+	u8	disableForceClear;
+	u8	physicalPresence;
+	u8	physicalPresenceLock;
+	u8	bGlobalLock;
+}__attribute__((packed));
+
+struct	tpm_version_t {
+	u8	Major;
+	u8	Minor;
+	u8	revMajor;
+	u8	revMinor;
+}__attribute__((packed));
+
+struct	tpm_version_1_2_t {
+	__be16	tag;
+	u8	Major;
+	u8	Minor;
+	u8	revMajor;
+	u8	revMinor;
+}__attribute__((packed));
+
+struct	timeout_t {
+	__be32	a;
+	__be32	b;
+	__be32	c;
+	__be32	d;
+}__attribute__((packed));
+
+struct duration_t {
+	__be32	tpm_short;
+	__be32	tpm_medium;
+	__be32	tpm_long;
+}__attribute__((packed));
+
+struct permanent_flags_t {
+	__be16	tag;
+	u8	disable;
+	u8	ownership;
+	u8	deactivated;
+	u8	readPubek;
+	u8	disableOwnerClear;
+	u8	allowMaintenance;
+	u8	physicalPresenceLifetimeLock;
+	u8	physicalPresenceHWEnable;
+	u8	physicalPresenceCMDEnable;
+	u8	CEKPUsed;
+	u8	TPMpost;
+	u8	TPMpostLock;
+	u8	FIPS;
+	u8	operator;
+	u8	enableRevokeEK;
+	u8	nvLocked;
+	u8	readSRKPub;
+	u8	tpmEstablished;
+	u8	maintenanceDone;
+	u8	disableFullDALogicInfo;
+}__attribute__((packed));
+
+typedef union {
+	struct	permanent_flags_t perm_flags;
+	struct	stclear_flags_t	stclear_flags;
+	bool	owned;
+	__be32	num_pcrs;
+	struct	tpm_version_t	tpm_version;
+	struct	tpm_version_1_2_t tpm_version_1_2;
+	__be32	manufacturer_id;
+	struct timeout_t  timeout;
+	struct duration_t duration;
+} cap_t;
+
+struct	tpm_getcap_params_in {
+	__be32	cap;
+	__be32	subcap_size;
+	__be32	subcap;
+}__attribute__((packed));
+
+struct	tpm_getcap_params_out {
+	__be32	cap_size;
+	cap_t	cap;
+}__attribute__((packed));
+
+struct	tpm_readpubek_params_out {
+	u8	algorithm[4];
+	u8	encscheme[2];
+	u8	sigscheme[2];
+	u8	parameters[12]; /*assuming RSA*/
+	__be32	keysize;
+	u8	modulus[256];
+	u8	checksum[20];
+}__attribute__((packed));
+
+typedef union {
+	struct	tpm_input_header in;
+	struct	tpm_output_header out;
+} tpm_cmd_header;
+
+#define TPM_DIGEST_SIZE 20
+struct tpm_pcrread_out {
+	u8	pcr_result[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+struct tpm_pcrread_in {
+	__be32	pcr_idx;
+}__attribute__((packed));
+
+struct tpm_pcrextend_in {
+	__be32	pcr_idx;
+	u8	hash[TPM_DIGEST_SIZE];
+}__attribute__((packed));
+
+typedef union {
+	struct	tpm_getcap_params_out getcap_out;
+	struct	tpm_readpubek_params_out readpubek_out;
+	u8	readpubek_out_buffer[sizeof(struct tpm_readpubek_params_out)];
+	struct	tpm_getcap_params_in getcap_in;
+	struct	tpm_pcrread_in	pcrread_in;
+	struct	tpm_pcrread_out	pcrread_out;
+	struct	tpm_pcrextend_in pcrextend_in;
+} tpm_cmd_params;
+
+struct tpm_cmd_t {
+	tpm_cmd_header	header;
+	tpm_cmd_params	params;
+}__attribute__((packed));
+
+ssize_t	tpm_getcap(struct device *, __be32, cap_t *, const char *);
 
 extern void tpm_get_timeouts(struct tpm_chip *);
 extern void tpm_gen_interrupt(struct tpm_chip *);
diff --git a/drivers/char/tpm/tpm_atmel.c b/drivers/char/tpm/tpm_atmel.c
index d0e7926..c64a1bc 100644
--- a/drivers/char/tpm/tpm_atmel.c
+++ b/drivers/char/tpm/tpm_atmel.c
@@ -168,12 +168,22 @@ static void atml_plat_remove(void)
 	}
 }
 
-static struct device_driver atml_drv = {
-	.name = "tpm_atmel",
-	.bus = &platform_bus_type,
-	.owner = THIS_MODULE,
-	.suspend = tpm_pm_suspend,
-	.resume = tpm_pm_resume,
+static int tpm_atml_suspend(struct platform_device *dev, pm_message_t msg)
+{
+	return tpm_pm_suspend(&dev->dev, msg);
+}
+
+static int tpm_atml_resume(struct platform_device *dev)
+{
+	return tpm_pm_resume(&dev->dev);
+}
+static struct platform_driver atml_drv = {
+	.driver = {
+		.name = "tpm_atmel",
+		.owner		= THIS_MODULE,
+	},
+	.suspend = tpm_atml_suspend,
+	.resume = tpm_atml_resume,
 };
 
 static int __init init_atmel(void)
@@ -184,7 +194,7 @@ static int __init init_atmel(void)
 	unsigned long base;
 	struct  tpm_chip *chip;
 
-	rc = driver_register(&atml_drv);
+	rc = platform_driver_register(&atml_drv);
 	if (rc)
 		return rc;
 
@@ -223,13 +233,13 @@ err_rel_reg:
 		atmel_release_region(base,
 				     region_size);
 err_unreg_drv:
-	driver_unregister(&atml_drv);
+	platform_driver_unregister(&atml_drv);
 	return rc;
 }
 
 static void __exit cleanup_atmel(void)
 {
-	driver_unregister(&atml_drv);
+	platform_driver_unregister(&atml_drv);
 	atml_plat_remove();
 }
 
diff --git a/drivers/char/tpm/tpm_tis.c b/drivers/char/tpm/tpm_tis.c
index 717af7a..aec1931 100644
--- a/drivers/char/tpm/tpm_tis.c
+++ b/drivers/char/tpm/tpm_tis.c
@@ -654,12 +654,22 @@ module_param_string(hid, tpm_pnp_tbl[TIS_HID_USR_IDX].id,
 		    sizeof(tpm_pnp_tbl[TIS_HID_USR_IDX].id), 0444);
 MODULE_PARM_DESC(hid, "Set additional specific HID for this driver to probe");
 
-static struct device_driver tis_drv = {
-	.name = "tpm_tis",
-	.bus = &platform_bus_type,
-	.owner = THIS_MODULE,
-	.suspend = tpm_pm_suspend,
-	.resume = tpm_pm_resume,
+static int tpm_tis_suspend(struct platform_device *dev, pm_message_t msg)
+{
+	return tpm_pm_suspend(&dev->dev, msg);
+}
+
+static int tpm_tis_resume(struct platform_device *dev)
+{
+	return tpm_pm_resume(&dev->dev);
+}
+static struct platform_driver tis_drv = {
+	.driver = {
+		.name = "tpm_tis",
+		.owner		= THIS_MODULE,
+	},
+	.suspend = tpm_tis_suspend,
+	.resume = tpm_tis_resume,
 };
 
 static struct platform_device *pdev;
@@ -672,14 +682,14 @@ static int __init init_tis(void)
 	int rc;
 
 	if (force) {
-		rc = driver_register(&tis_drv);
+		rc = platform_driver_register(&tis_drv);
 		if (rc < 0)
 			return rc;
 		if (IS_ERR(pdev=platform_device_register_simple("tpm_tis", -1, NULL, 0)))
 			return PTR_ERR(pdev);
 		if((rc=tpm_tis_init(&pdev->dev, TIS_MEM_BASE, TIS_MEM_LEN, 0)) != 0) {
 			platform_device_unregister(pdev);
-			driver_unregister(&tis_drv);
+			platform_driver_unregister(&tis_drv);
 		}
 		return rc;
 	}
@@ -711,7 +721,7 @@ static void __exit cleanup_tis(void)
 
 	if (force) {
 		platform_device_unregister(pdev);
-		driver_unregister(&tis_drv);
+		platform_driver_unregister(&tis_drv);
 	} else
 		pnp_unregister_driver(&tis_pnp_driver);
 }
diff --git a/drivers/char/tty_audit.c b/drivers/char/tty_audit.c
index 34ab6d7..55ba6f1 100644
--- a/drivers/char/tty_audit.c
+++ b/drivers/char/tty_audit.c
@@ -10,8 +10,6 @@
  */
 
 #include <linux/audit.h>
-#include <linux/file.h>
-#include <linux/fdtable.h>
 #include <linux/tty.h>
 
 struct tty_audit_buf {
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index bc84e12..66b99a2 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -464,7 +464,7 @@ void tty_wakeup(struct tty_struct *tty)
 			tty_ldisc_deref(ld);
 		}
 	}
-	wake_up_interruptible(&tty->write_wait);
+	wake_up_interruptible_poll(&tty->write_wait, POLLOUT);
 }
 
 EXPORT_SYMBOL_GPL(tty_wakeup);
@@ -587,8 +587,8 @@ static void do_tty_hangup(struct work_struct *work)
 	 * FIXME: Once we trust the LDISC code better we can wait here for
 	 * ldisc completion and fix the driver call race
 	 */
-	wake_up_interruptible(&tty->write_wait);
-	wake_up_interruptible(&tty->read_wait);
+	wake_up_interruptible_poll(&tty->write_wait, POLLOUT);
+	wake_up_interruptible_poll(&tty->read_wait, POLLIN);
 	/*
 	 * Shutdown the current line discipline, and reset it to
 	 * N_TTY.
@@ -879,7 +879,7 @@ void stop_tty(struct tty_struct *tty)
 	if (tty->link && tty->link->packet) {
 		tty->ctrl_status &= ~TIOCPKT_START;
 		tty->ctrl_status |= TIOCPKT_STOP;
-		wake_up_interruptible(&tty->link->read_wait);
+		wake_up_interruptible_poll(&tty->link->read_wait, POLLIN);
 	}
 	spin_unlock_irqrestore(&tty->ctrl_lock, flags);
 	if (tty->ops->stop)
@@ -913,7 +913,7 @@ void start_tty(struct tty_struct *tty)
 	if (tty->link && tty->link->packet) {
 		tty->ctrl_status &= ~TIOCPKT_STOP;
 		tty->ctrl_status |= TIOCPKT_START;
-		wake_up_interruptible(&tty->link->read_wait);
+		wake_up_interruptible_poll(&tty->link->read_wait, POLLIN);
 	}
 	spin_unlock_irqrestore(&tty->ctrl_lock, flags);
 	if (tty->ops->start)
@@ -970,7 +970,7 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
 void tty_write_unlock(struct tty_struct *tty)
 {
 	mutex_unlock(&tty->atomic_write_lock);
-	wake_up_interruptible(&tty->write_wait);
+	wake_up_interruptible_poll(&tty->write_wait, POLLOUT);
 }
 
 int tty_write_lock(struct tty_struct *tty, int ndelay)
@@ -1623,21 +1623,21 @@ void tty_release_dev(struct file *filp)
 
 		if (tty_closing) {
 			if (waitqueue_active(&tty->read_wait)) {
-				wake_up(&tty->read_wait);
+				wake_up_poll(&tty->read_wait, POLLIN);
 				do_sleep++;
 			}
 			if (waitqueue_active(&tty->write_wait)) {
-				wake_up(&tty->write_wait);
+				wake_up_poll(&tty->write_wait, POLLOUT);
 				do_sleep++;
 			}
 		}
 		if (o_tty_closing) {
 			if (waitqueue_active(&o_tty->read_wait)) {
-				wake_up(&o_tty->read_wait);
+				wake_up_poll(&o_tty->read_wait, POLLIN);
 				do_sleep++;
 			}
 			if (waitqueue_active(&o_tty->write_wait)) {
-				wake_up(&o_tty->write_wait);
+				wake_up_poll(&o_tty->write_wait, POLLOUT);
 				do_sleep++;
 			}
 		}
@@ -1758,7 +1758,7 @@ static int __tty_open(struct inode *inode, struct file *filp)
 	struct tty_driver *driver;
 	int index;
 	dev_t device = inode->i_rdev;
-	unsigned short saved_flags = filp->f_flags;
+	unsigned saved_flags = filp->f_flags;
 
 	nonseekable_open(inode, filp);
 
@@ -2162,13 +2162,12 @@ static int fionbio(struct file *file, int __user *p)
 	if (get_user(nonblock, p))
 		return -EFAULT;
 
-	/* file->f_flags is still BKL protected in the fs layer - vomit */
-	lock_kernel();
+	spin_lock(&file->f_lock);
 	if (nonblock)
 		file->f_flags |= O_NONBLOCK;
 	else
 		file->f_flags &= ~O_NONBLOCK;
-	unlock_kernel();
+	spin_unlock(&file->f_lock);
 	return 0;
 }
 
@@ -2682,7 +2681,7 @@ void __do_SAK(struct tty_struct *tty)
 	/* Kill the entire session */
 	do_each_pid_task(session, PIDTYPE_SID, p) {
 		printk(KERN_NOTICE "SAK: killed process %d"
-			" (%s): task_session_nr(p)==tty->session\n",
+			" (%s): task_session(p)==tty->session\n",
 			task_pid_nr(p), p->comm);
 		send_sig(SIGKILL, p, 1);
 	} while_each_pid_task(session, PIDTYPE_SID, p);
@@ -2692,7 +2691,7 @@ void __do_SAK(struct tty_struct *tty)
 	do_each_thread(g, p) {
 		if (p->signal->tty == tty) {
 			printk(KERN_NOTICE "SAK: killed process %d"
-			    " (%s): task_session_nr(p)==tty->session\n",
+			    " (%s): task_session(p)==tty->session\n",
 			    task_pid_nr(p), p->comm);
 			send_sig(SIGKILL, p, 1);
 			continue;
diff --git a/drivers/char/tty_ldisc.c b/drivers/char/tty_ldisc.c
index 7a84b40..f78f5b0 100644
--- a/drivers/char/tty_ldisc.c
+++ b/drivers/char/tty_ldisc.c
@@ -10,7 +10,6 @@
 #include <linux/tty_flip.h>
 #include <linux/devpts_fs.h>
 #include <linux/file.h>
-#include <linux/fdtable.h>
 #include <linux/console.h>
 #include <linux/timer.h>
 #include <linux/ctype.h>
diff --git a/drivers/char/vc_screen.c b/drivers/char/vc_screen.c
index 4f3b3f9..d94d25c 100644
--- a/drivers/char/vc_screen.c
+++ b/drivers/char/vc_screen.c
@@ -479,18 +479,18 @@ static const struct file_operations vcs_fops = {
 
 static struct class *vc_class;
 
-void vcs_make_sysfs(struct tty_struct *tty)
+void vcs_make_sysfs(int index)
 {
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 1), NULL,
-		      "vcs%u", tty->index + 1);
-	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, tty->index + 129), NULL,
-		      "vcsa%u", tty->index + 1);
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 1), NULL,
+		      "vcs%u", index + 1);
+	device_create(vc_class, NULL, MKDEV(VCS_MAJOR, index + 129), NULL,
+		      "vcsa%u", index + 1);
 }
 
-void vcs_remove_sysfs(struct tty_struct *tty)
+void vcs_remove_sysfs(int index)
 {
-	device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 1));
-	device_destroy(vc_class, MKDEV(VCS_MAJOR, tty->index + 129));
+	device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 1));
+	device_destroy(vc_class, MKDEV(VCS_MAJOR, index + 129));
 }
 
 int __init vcs_init(void)
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index 7900bd6..08151d4 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -778,6 +778,7 @@ int vc_allocate(unsigned int currcons)	/* return 0 on success */
 	    }
 	    vc->vc_kmalloced = 1;
 	    vc_init(vc, vc->vc_rows, vc->vc_cols, 1);
+	    vcs_make_sysfs(currcons);
 	    atomic_notifier_call_chain(&vt_notifier_list, VT_ALLOCATE, &param);
 	}
 	return 0;
@@ -987,7 +988,9 @@ void vc_deallocate(unsigned int currcons)
 	if (vc_cons_allocated(currcons)) {
 		struct vc_data *vc = vc_cons[currcons].d;
 		struct vt_notifier_param param = { .vc = vc };
+
 		atomic_notifier_call_chain(&vt_notifier_list, VT_DEALLOCATE, &param);
+		vcs_remove_sysfs(currcons);
 		vc->vc_sw->con_deinit(vc);
 		put_pid(vc->vt_pid);
 		module_put(vc->vc_sw->owner);
@@ -2271,7 +2274,7 @@ rescan_last_byte:
 				    continue; /* nothing to display */
 				}
 				/* Glyph not found */
-				if ((!(vc->vc_utf && !vc->vc_disp_ctrl) && c < 128) && !(c & ~charmask)) {
+				if ((!(vc->vc_utf && !vc->vc_disp_ctrl) || c < 128) && !(c & ~charmask)) {
 				    /* In legacy mode use the glyph we get by a 1:1 mapping.
 				       This would make absolutely no sense with Unicode in mind,
 				       but do this for ASCII characters since a font may lack
@@ -2775,7 +2778,6 @@ static int con_open(struct tty_struct *tty, struct file *filp)
 				tty->termios->c_iflag |= IUTF8;
 			else
 				tty->termios->c_iflag &= ~IUTF8;
-			vcs_make_sysfs(tty);
 			release_console_sem();
 			return ret;
 		}
@@ -2795,7 +2797,6 @@ static void con_shutdown(struct tty_struct *tty)
 	BUG_ON(vc == NULL);
 	acquire_console_sem();
 	vc->vc_tty = NULL;
-	vcs_remove_sysfs(tty);
 	release_console_sem();
 	tty_shutdown(tty);
 }
diff --git a/drivers/char/vt_ioctl.c b/drivers/char/vt_ioctl.c
index a2dee0e..e6ce632 100644
--- a/drivers/char/vt_ioctl.c
+++ b/drivers/char/vt_ioctl.c
@@ -400,6 +400,9 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 	case KIOCSOUND:
 		if (!perm)
 			goto eperm;
+		/* FIXME: This is an old broken API but we need to keep it
+		   supported and somehow separate the historic advertised
+		   tick rate from any real one */
 		if (arg)
 			arg = CLOCK_TICK_RATE / arg;
 		kd_mksound(arg, 0);
@@ -417,6 +420,9 @@ int vt_ioctl(struct tty_struct *tty, struct file * file,
 		 */
 		ticks = HZ * ((arg >> 16) & 0xffff) / 1000;
 		count = ticks ? (arg & 0xffff) : 0;
+		/* FIXME: This is an old broken API but we need to keep it
+		   supported and somehow separate the historic advertised
+		   tick rate from any real one */
 		if (count)
 			count = CLOCK_TICK_RATE / count;
 		kd_mksound(count, ticks);