Merge commit 'linus/master' into tracing/kprobes

Conflicts:
	kernel/trace/Makefile
	kernel/trace/trace.h
	kernel/trace/trace_event_types.h
	kernel/trace/trace_export.c

Merge reason:
	Sync with latest significant tracing core changes.

11 files changed, 685 insertions, 135 deletions

diff --git a/drivers/misc/Kconfig b/drivers/misc/Kconfig
index 68ab39d7cb3..df1f86b5c83 100644
--- a/drivers/misc/Kconfig
+++ b/drivers/misc/Kconfig
@@ -233,6 +233,19 @@ config ISL29003
 	  This driver can also be built as a module.  If so, the module
 	  will be called isl29003.
 
+config EP93XX_PWM
+	tristate "EP93xx PWM support"
+	depends on ARCH_EP93XX
+	help
+	  This option enables device driver support for the PWM channels
+	  on the Cirrus EP93xx processors.  The EP9307 chip only has one
+	  PWM channel all the others have two, the second channel is an
+	  alternate function of the EGPIO14 pin.  A sysfs interface is
+	  provided to control the PWM channels.
+
+	  To compile this driver as a module, choose M here: the module will
+	  be called ep93xx_pwm.
+
 source "drivers/misc/c2port/Kconfig"
 source "drivers/misc/eeprom/Kconfig"
 source "drivers/misc/cb710/Kconfig"
diff --git a/drivers/misc/Makefile b/drivers/misc/Makefile
index 36f733cd60e..f982d2ecfde 100644
--- a/drivers/misc/Makefile
+++ b/drivers/misc/Makefile
@@ -19,6 +19,7 @@ obj-$(CONFIG_SGI_XP)		+= sgi-xp/
 obj-$(CONFIG_SGI_GRU)		+= sgi-gru/
 obj-$(CONFIG_HP_ILO)		+= hpilo.o
 obj-$(CONFIG_ISL29003)		+= isl29003.o
+obj-$(CONFIG_EP93XX_PWM)	+= ep93xx_pwm.o
 obj-$(CONFIG_C2PORT)		+= c2port/
 obj-y				+= eeprom/
 obj-y				+= cb710/
diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 2e535a0ccd5..d902d81dde3 100644
--- a/drivers/misc/eeprom/at25.c
+++ b/drivers/misc/eeprom/at25.c
@@ -417,4 +417,4 @@ module_exit(at25_exit);
 MODULE_DESCRIPTION("Driver for most SPI EEPROMs");
 MODULE_AUTHOR("David Brownell");
 MODULE_LICENSE("GPL");
-
+MODULE_ALIAS("spi:at25");
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 348443bdb23..e9eae4a7840 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -33,24 +33,44 @@ static DEFINE_MUTEX(container_list_lock);
 static struct class enclosure_class;
 
 /**
- * enclosure_find - find an enclosure given a device
- * @dev:	the device to find for
+ * enclosure_find - find an enclosure given a parent device
+ * @dev:	the parent to match against
+ * @start:	Optional enclosure device to start from (NULL if none)
  *
- * Looks through the list of registered enclosures to see
- * if it can find a match for a device.  Returns NULL if no
- * enclosure is found. Obtains a reference to the enclosure class
- * device which must be released with device_put().
+ * Looks through the list of registered enclosures to find all those
+ * with @dev as a parent.  Returns NULL if no enclosure is
+ * found. @start can be used as a starting point to obtain multiple
+ * enclosures per parent (should begin with NULL and then be set to
+ * each returned enclosure device). Obtains a reference to the
+ * enclosure class device which must be released with device_put().
+ * If @start is not NULL, a reference must be taken on it which is
+ * released before returning (this allows a loop through all
+ * enclosures to exit with only the reference on the enclosure of
+ * interest held).  Note that the @dev may correspond to the actual
+ * device housing the enclosure, in which case no iteration via @start
+ * is required.
  */
-struct enclosure_device *enclosure_find(struct device *dev)
+struct enclosure_device *enclosure_find(struct device *dev,
+					struct enclosure_device *start)
 {
 	struct enclosure_device *edev;
 
 	mutex_lock(&container_list_lock);
-	list_for_each_entry(edev, &container_list, node) {
-		if (edev->edev.parent == dev) {
-			get_device(&edev->edev);
-			mutex_unlock(&container_list_lock);
-			return edev;
+	edev = list_prepare_entry(start, &container_list, node);
+	if (start)
+		put_device(&start->edev);
+
+	list_for_each_entry_continue(edev, &container_list, node) {
+		struct device *parent = edev->edev.parent;
+		/* parent might not be immediate, so iterate up to
+		 * the root of the tree if necessary */
+		while (parent) {
+			if (parent == dev) {
+				get_device(&edev->edev);
+				mutex_unlock(&container_list_lock);
+				return edev;
+			}
+			parent = parent->parent;
 		}
 	}
 	mutex_unlock(&container_list_lock);
@@ -218,7 +238,7 @@ static void enclosure_component_release(struct device *dev)
 	put_device(dev->parent);
 }
 
-static struct attribute_group *enclosure_groups[];
+static const struct attribute_group *enclosure_groups[];
 
 /**
  * enclosure_component_register - add a particular component to an enclosure
@@ -295,6 +315,9 @@ int enclosure_add_device(struct enclosure_device *edev, int component,
 
 	cdev = &edev->component[component];
 
+	if (cdev->dev == dev)
+		return -EEXIST;
+
 	if (cdev->dev)
 		enclosure_remove_links(cdev);
 
@@ -312,19 +335,25 @@ EXPORT_SYMBOL_GPL(enclosure_add_device);
  * Returns zero on success or an error.
  *
  */
-int enclosure_remove_device(struct enclosure_device *edev, int component)
+int enclosure_remove_device(struct enclosure_device *edev, struct device *dev)
 {
 	struct enclosure_component *cdev;
+	int i;
 
-	if (!edev || component >= edev->components)
+	if (!edev || !dev)
 		return -EINVAL;
 
-	cdev = &edev->component[component];
-
-	device_del(&cdev->cdev);
-	put_device(cdev->dev);
-	cdev->dev = NULL;
-	return device_add(&cdev->cdev);
+	for (i = 0; i < edev->components; i++) {
+		cdev = &edev->component[i];
+		if (cdev->dev == dev) {
+			enclosure_remove_links(cdev);
+			device_del(&cdev->cdev);
+			put_device(dev);
+			cdev->dev = NULL;
+			return device_add(&cdev->cdev);
+		}
+	}
+	return -ENODEV;
 }
 EXPORT_SYMBOL_GPL(enclosure_remove_device);
 
@@ -507,7 +536,7 @@ static struct attribute_group enclosure_group = {
 	.attrs = enclosure_component_attrs,
 };
 
-static struct attribute_group *enclosure_groups[] = {
+static const struct attribute_group *enclosure_groups[] = {
 	&enclosure_group,
 	NULL
 };
diff --git a/drivers/misc/ep93xx_pwm.c b/drivers/misc/ep93xx_pwm.c
new file mode 100644
index 00000000000..ba4694169d7
--- /dev/null
+++ b/drivers/misc/ep93xx_pwm.c
@@ -0,0 +1,384 @@
+/*
+ *  Simple PWM driver for EP93XX
+ *
+ *	(c) Copyright 2009  Matthieu Crapet <mcrapet@gmail.com>
+ *	(c) Copyright 2009  H Hartley Sweeten <hsweeten@visionengravers.com>
+ *
+ *	This program is free software; you can redistribute it and/or
+ *	modify it under the terms of the GNU General Public License
+ *	as published by the Free Software Foundation; either version
+ *	2 of the License, or (at your option) any later version.
+ *
+ *  EP9307 has only one channel:
+ *    - PWMOUT
+ *
+ *  EP9301/02/12/15 have two channels:
+ *    - PWMOUT
+ *    - PWMOUT1 (alternate function for EGPIO14)
+ */
+
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/clk.h>
+#include <linux/err.h>
+#include <linux/io.h>
+
+#include <mach/platform.h>
+
+#define EP93XX_PWMx_TERM_COUNT	0x00
+#define EP93XX_PWMx_DUTY_CYCLE	0x04
+#define EP93XX_PWMx_ENABLE	0x08
+#define EP93XX_PWMx_INVERT	0x0C
+
+#define EP93XX_PWM_MAX_COUNT	0xFFFF
+
+struct ep93xx_pwm {
+	void __iomem	*mmio_base;
+	struct clk	*clk;
+	u32		duty_percent;
+};
+
+static inline void ep93xx_pwm_writel(struct ep93xx_pwm *pwm,
+		unsigned int val, unsigned int off)
+{
+	__raw_writel(val, pwm->mmio_base + off);
+}
+
+static inline unsigned int ep93xx_pwm_readl(struct ep93xx_pwm *pwm,
+		unsigned int off)
+{
+	return __raw_readl(pwm->mmio_base + off);
+}
+
+static inline void ep93xx_pwm_write_tc(struct ep93xx_pwm *pwm, u16 value)
+{
+	ep93xx_pwm_writel(pwm, value, EP93XX_PWMx_TERM_COUNT);
+}
+
+static inline u16 ep93xx_pwm_read_tc(struct ep93xx_pwm *pwm)
+{
+	return ep93xx_pwm_readl(pwm, EP93XX_PWMx_TERM_COUNT);
+}
+
+static inline void ep93xx_pwm_write_dc(struct ep93xx_pwm *pwm, u16 value)
+{
+	ep93xx_pwm_writel(pwm, value, EP93XX_PWMx_DUTY_CYCLE);
+}
+
+static inline void ep93xx_pwm_enable(struct ep93xx_pwm *pwm)
+{
+	ep93xx_pwm_writel(pwm, 0x1, EP93XX_PWMx_ENABLE);
+}
+
+static inline void ep93xx_pwm_disable(struct ep93xx_pwm *pwm)
+{
+	ep93xx_pwm_writel(pwm, 0x0, EP93XX_PWMx_ENABLE);
+}
+
+static inline int ep93xx_pwm_is_enabled(struct ep93xx_pwm *pwm)
+{
+	return ep93xx_pwm_readl(pwm, EP93XX_PWMx_ENABLE) & 0x1;
+}
+
+static inline void ep93xx_pwm_invert(struct ep93xx_pwm *pwm)
+{
+	ep93xx_pwm_writel(pwm, 0x1, EP93XX_PWMx_INVERT);
+}
+
+static inline void ep93xx_pwm_normal(struct ep93xx_pwm *pwm)
+{
+	ep93xx_pwm_writel(pwm, 0x0, EP93XX_PWMx_INVERT);
+}
+
+static inline int ep93xx_pwm_is_inverted(struct ep93xx_pwm *pwm)
+{
+	return ep93xx_pwm_readl(pwm, EP93XX_PWMx_INVERT) & 0x1;
+}
+
+/*
+ * /sys/devices/platform/ep93xx-pwm.N
+ *   /min_freq      read-only   minimum pwm output frequency
+ *   /max_req       read-only   maximum pwm output frequency
+ *   /freq          read-write  pwm output frequency (0 = disable output)
+ *   /duty_percent  read-write  pwm duty cycle percent (1..99)
+ *   /invert        read-write  invert pwm output
+ */
+
+static ssize_t ep93xx_pwm_get_min_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	unsigned long rate = clk_get_rate(pwm->clk);
+
+	return sprintf(buf, "%ld\n", rate / (EP93XX_PWM_MAX_COUNT + 1));
+}
+
+static ssize_t ep93xx_pwm_get_max_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	unsigned long rate = clk_get_rate(pwm->clk);
+
+	return sprintf(buf, "%ld\n", rate / 2);
+}
+
+static ssize_t ep93xx_pwm_get_freq(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+
+	if (ep93xx_pwm_is_enabled(pwm)) {
+		unsigned long rate = clk_get_rate(pwm->clk);
+		u16 term = ep93xx_pwm_read_tc(pwm);
+
+		return sprintf(buf, "%ld\n", rate / (term + 1));
+	} else {
+		return sprintf(buf, "disabled\n");
+	}
+}
+
+static ssize_t ep93xx_pwm_set_freq(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	long val;
+	int err;
+
+	err = strict_strtol(buf, 10, &val);
+	if (err)
+		return -EINVAL;
+
+	if (val == 0) {
+		ep93xx_pwm_disable(pwm);
+	} else if (val <= (clk_get_rate(pwm->clk) / 2)) {
+		u32 term, duty;
+
+		val = (clk_get_rate(pwm->clk) / val) - 1;
+		if (val > EP93XX_PWM_MAX_COUNT)
+			val = EP93XX_PWM_MAX_COUNT;
+		if (val < 1)
+			val = 1;
+
+		term = ep93xx_pwm_read_tc(pwm);
+		duty = ((val + 1) * pwm->duty_percent / 100) - 1;
+
+		/* If pwm is running, order is important */
+		if (val > term) {
+			ep93xx_pwm_write_tc(pwm, val);
+			ep93xx_pwm_write_dc(pwm, duty);
+		} else {
+			ep93xx_pwm_write_dc(pwm, duty);
+			ep93xx_pwm_write_tc(pwm, val);
+		}
+
+		if (!ep93xx_pwm_is_enabled(pwm))
+			ep93xx_pwm_enable(pwm);
+	} else {
+		return -EINVAL;
+	}
+
+	return count;
+}
+
+static ssize_t ep93xx_pwm_get_duty_percent(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+
+	return sprintf(buf, "%d\n", pwm->duty_percent);
+}
+
+static ssize_t ep93xx_pwm_set_duty_percent(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	long val;
+	int err;
+
+	err = strict_strtol(buf, 10, &val);
+	if (err)
+		return -EINVAL;
+
+	if (val > 0 && val < 100) {
+		u32 term = ep93xx_pwm_read_tc(pwm);
+		ep93xx_pwm_write_dc(pwm, ((term + 1) * val / 100) - 1);
+		pwm->duty_percent = val;
+		return count;
+	}
+
+	return -EINVAL;
+}
+
+static ssize_t ep93xx_pwm_get_invert(struct device *dev,
+		struct device_attribute *attr, char *buf)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+
+	return sprintf(buf, "%d\n", ep93xx_pwm_is_inverted(pwm));
+}
+
+static ssize_t ep93xx_pwm_set_invert(struct device *dev,
+		struct device_attribute *attr, const char *buf, size_t count)
+{
+	struct platform_device *pdev = to_platform_device(dev);
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	long val;
+	int err;
+
+	err = strict_strtol(buf, 10, &val);
+	if (err)
+		return -EINVAL;
+
+	if (val == 0)
+		ep93xx_pwm_normal(pwm);
+	else if (val == 1)
+		ep93xx_pwm_invert(pwm);
+	else
+		return -EINVAL;
+
+	return count;
+}
+
+static DEVICE_ATTR(min_freq, S_IRUGO, ep93xx_pwm_get_min_freq, NULL);
+static DEVICE_ATTR(max_freq, S_IRUGO, ep93xx_pwm_get_max_freq, NULL);
+static DEVICE_ATTR(freq, S_IWUGO | S_IRUGO,
+		   ep93xx_pwm_get_freq, ep93xx_pwm_set_freq);
+static DEVICE_ATTR(duty_percent, S_IWUGO | S_IRUGO,
+		   ep93xx_pwm_get_duty_percent, ep93xx_pwm_set_duty_percent);
+static DEVICE_ATTR(invert, S_IWUGO | S_IRUGO,
+		   ep93xx_pwm_get_invert, ep93xx_pwm_set_invert);
+
+static struct attribute *ep93xx_pwm_attrs[] = {
+	&dev_attr_min_freq.attr,
+	&dev_attr_max_freq.attr,
+	&dev_attr_freq.attr,
+	&dev_attr_duty_percent.attr,
+	&dev_attr_invert.attr,
+	NULL
+};
+
+static const struct attribute_group ep93xx_pwm_sysfs_files = {
+	.attrs	= ep93xx_pwm_attrs,
+};
+
+static int __init ep93xx_pwm_probe(struct platform_device *pdev)
+{
+	struct ep93xx_pwm *pwm;
+	struct resource *res;
+	int err;
+
+	err = ep93xx_pwm_acquire_gpio(pdev);
+	if (err)
+		return err;
+
+	pwm = kzalloc(sizeof(struct ep93xx_pwm), GFP_KERNEL);
+	if (!pwm) {
+		err = -ENOMEM;
+		goto fail_no_mem;
+	}
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (res == NULL) {
+		err = -ENXIO;
+		goto fail_no_mem_resource;
+	}
+
+	res = request_mem_region(res->start, resource_size(res), pdev->name);
+	if (res == NULL) {
+		err = -EBUSY;
+		goto fail_no_mem_resource;
+	}
+
+	pwm->mmio_base = ioremap(res->start, resource_size(res));
+	if (pwm->mmio_base == NULL) {
+		err = -ENXIO;
+		goto fail_no_ioremap;
+	}
+
+	err = sysfs_create_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
+	if (err)
+		goto fail_no_sysfs;
+
+	pwm->clk = clk_get(&pdev->dev, "pwm_clk");
+	if (IS_ERR(pwm->clk)) {
+		err = PTR_ERR(pwm->clk);
+		goto fail_no_clk;
+	}
+
+	pwm->duty_percent = 50;
+
+	platform_set_drvdata(pdev, pwm);
+
+	/* disable pwm at startup. Avoids zero value. */
+	ep93xx_pwm_disable(pwm);
+	ep93xx_pwm_write_tc(pwm, EP93XX_PWM_MAX_COUNT);
+	ep93xx_pwm_write_dc(pwm, EP93XX_PWM_MAX_COUNT / 2);
+
+	clk_enable(pwm->clk);
+
+	return 0;
+
+fail_no_clk:
+	sysfs_remove_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
+fail_no_sysfs:
+	iounmap(pwm->mmio_base);
+fail_no_ioremap:
+	release_mem_region(res->start, resource_size(res));
+fail_no_mem_resource:
+	kfree(pwm);
+fail_no_mem:
+	ep93xx_pwm_release_gpio(pdev);
+	return err;
+}
+
+static int __exit ep93xx_pwm_remove(struct platform_device *pdev)
+{
+	struct ep93xx_pwm *pwm = platform_get_drvdata(pdev);
+	struct resource *res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+
+	ep93xx_pwm_disable(pwm);
+	clk_disable(pwm->clk);
+	clk_put(pwm->clk);
+	platform_set_drvdata(pdev, NULL);
+	sysfs_remove_group(&pdev->dev.kobj, &ep93xx_pwm_sysfs_files);
+	iounmap(pwm->mmio_base);
+	release_mem_region(res->start, resource_size(res));
+	kfree(pwm);
+	ep93xx_pwm_release_gpio(pdev);
+
+	return 0;
+}
+
+static struct platform_driver ep93xx_pwm_driver = {
+	.driver		= {
+		.name	= "ep93xx-pwm",
+		.owner	= THIS_MODULE,
+	},
+	.remove		= __exit_p(ep93xx_pwm_remove),
+};
+
+static int __init ep93xx_pwm_init(void)
+{
+	return platform_driver_probe(&ep93xx_pwm_driver, ep93xx_pwm_probe);
+}
+
+static void __exit ep93xx_pwm_exit(void)
+{
+	platform_driver_unregister(&ep93xx_pwm_driver);
+}
+
+module_init(ep93xx_pwm_init);
+module_exit(ep93xx_pwm_exit);
+
+MODULE_AUTHOR("Matthieu Crapet <mcrapet@gmail.com>, "
+	      "H Hartley Sweeten <hsweeten@visionengravers.com>");
+MODULE_DESCRIPTION("EP93xx PWM driver");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("platform:ep93xx-pwm");
diff --git a/drivers/misc/hpilo.c b/drivers/misc/hpilo.c
index 880ccf39e23..1ad27c6abcc 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -13,6 +13,7 @@
 #include <linux/module.h>
 #include <linux/fs.h>
 #include <linux/pci.h>
+#include <linux/interrupt.h>
 #include <linux/ioport.h>
 #include <linux/device.h>
 #include <linux/file.h>
@@ -21,6 +22,8 @@
 #include <linux/delay.h>
 #include <linux/uaccess.h>
 #include <linux/io.h>
+#include <linux/wait.h>
+#include <linux/poll.h>
 #include "hpilo.h"
 
 static struct class *ilo_class;
@@ -61,9 +64,10 @@ static inline int desc_mem_sz(int nr_entry)
 static int fifo_enqueue(struct ilo_hwinfo *hw, char *fifobar, int entry)
 {
 	struct fifo *fifo_q = FIFOBARTOHANDLE(fifobar);
+	unsigned long flags;
 	int ret = 0;
 
-	spin_lock(&hw->fifo_lock);
+	spin_lock_irqsave(&hw->fifo_lock, flags);
 	if (!(fifo_q->fifobar[(fifo_q->tail + 1) & fifo_q->imask]
 	      & ENTRY_MASK_O)) {
 		fifo_q->fifobar[fifo_q->tail & fifo_q->imask] |=
@@ -71,7 +75,7 @@ static int fifo_enqueue(struct ilo_hwinfo *hw, char *fifobar, int entry)
 		fifo_q->tail += 1;
 		ret = 1;
 	}
-	spin_unlock(&hw->fifo_lock);
+	spin_unlock_irqrestore(&hw->fifo_lock, flags);
 
 	return ret;
 }
@@ -79,10 +83,11 @@ static int fifo_enqueue(struct ilo_hwinfo *hw, char *fifobar, int entry)
 static int fifo_dequeue(struct ilo_hwinfo *hw, char *fifobar, int *entry)
 {
 	struct fifo *fifo_q = FIFOBARTOHANDLE(fifobar);
+	unsigned long flags;
 	int ret = 0;
 	u64 c;
 
-	spin_lock(&hw->fifo_lock);
+	spin_lock_irqsave(&hw->fifo_lock, flags);
 	c = fifo_q->fifobar[fifo_q->head & fifo_q->imask];
 	if (c & ENTRY_MASK_C) {
 		if (entry)
@@ -93,7 +98,23 @@ static int fifo_dequeue(struct ilo_hwinfo *hw, char *fifobar, int *entry)
 		fifo_q->head += 1;
 		ret = 1;
 	}
-	spin_unlock(&hw->fifo_lock);
+	spin_unlock_irqrestore(&hw->fifo_lock, flags);
+
+	return ret;
+}
+
+static int fifo_check_recv(struct ilo_hwinfo *hw, char *fifobar)
+{
+	struct fifo *fifo_q = FIFOBARTOHANDLE(fifobar);
+	unsigned long flags;
+	int ret = 0;
+	u64 c;
+
+	spin_lock_irqsave(&hw->fifo_lock, flags);
+	c = fifo_q->fifobar[fifo_q->head & fifo_q->imask];
+	if (c & ENTRY_MASK_C)
+		ret = 1;
+	spin_unlock_irqrestore(&hw->fifo_lock, flags);
 
 	return ret;
 }
@@ -142,6 +163,13 @@ static int ilo_pkt_dequeue(struct ilo_hwinfo *hw, struct ccb *ccb,
 	return ret;
 }
 
+static int ilo_pkt_recv(struct ilo_hwinfo *hw, struct ccb *ccb)
+{
+	char *fifobar = ccb->ccb_u3.recv_fifobar;
+
+	return fifo_check_recv(hw, fifobar);
+}
+
 static inline void doorbell_set(struct ccb *ccb)
 {
 	iowrite8(1, ccb->ccb_u5.db_base);
@@ -151,6 +179,7 @@ static inline void doorbell_clr(struct ccb *ccb)
 {
 	iowrite8(2, ccb->ccb_u5.db_base);
 }
+
 static inline int ctrl_set(int l2sz, int idxmask, int desclim)
 {
 	int active = 0, go = 1;
@@ -160,6 +189,7 @@ static inline int ctrl_set(int l2sz, int idxmask, int desclim)
 	       active << CTRL_BITPOS_A |
 	       go << CTRL_BITPOS_G;
 }
+
 static void ctrl_setup(struct ccb *ccb, int nr_desc, int l2desc_sz)
 {
 	/* for simplicity, use the same parameters for send and recv ctrls */
@@ -192,13 +222,10 @@ static void fifo_setup(void *base_addr, int nr_entry)
 
 static void ilo_ccb_close(struct pci_dev *pdev, struct ccb_data *data)
 {
-	struct ccb *driver_ccb;
-	struct ccb __iomem *device_ccb;
+	struct ccb *driver_ccb = &data->driver_ccb;
+	struct ccb __iomem *device_ccb = data->mapped_ccb;
 	int retries;
 
-	driver_ccb = &data->driver_ccb;
-	device_ccb = data->mapped_ccb;
-
 	/* complicated dance to tell the hw we are stopping */
 	doorbell_clr(driver_ccb);
 	iowrite32(ioread32(&device_ccb->send_ctrl) & ~(1 << CTRL_BITPOS_G),
@@ -225,26 +252,22 @@ static void ilo_ccb_close(struct pci_dev *pdev, struct ccb_data *data)
 	pci_free_consistent(pdev, data->dma_size, data->dma_va, data->dma_pa);
 }
 
-static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
+static int ilo_ccb_setup(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
 {
 	char *dma_va, *dma_pa;
-	int pkt_id, pkt_sz, i, error;
 	struct ccb *driver_ccb, *ilo_ccb;
-	struct pci_dev *pdev;
 
 	driver_ccb = &data->driver_ccb;
 	ilo_ccb = &data->ilo_ccb;
-	pdev = hw->ilo_dev;
 
 	data->dma_size = 2 * fifo_sz(NR_QENTRY) +
 			 2 * desc_mem_sz(NR_QENTRY) +
 			 ILO_START_ALIGN + ILO_CACHE_SZ;
 
-	error = -ENOMEM;
-	data->dma_va = pci_alloc_consistent(pdev, data->dma_size,
+	data->dma_va = pci_alloc_consistent(hw->ilo_dev, data->dma_size,
 					    &data->dma_pa);
 	if (!data->dma_va)
-		goto out;
+		return -ENOMEM;
 
 	dma_va = (char *)data->dma_va;
 	dma_pa = (char *)data->dma_pa;
@@ -290,10 +313,18 @@ static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
 	driver_ccb->ccb_u5.db_base = hw->db_vaddr + (slot << L2_DB_SIZE);
 	ilo_ccb->ccb_u5.db_base = NULL; /* hw ccb's doorbell is not used */
 
+	return 0;
+}
+
+static void ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
+{
+	int pkt_id, pkt_sz;
+	struct ccb *driver_ccb = &data->driver_ccb;
+
 	/* copy the ccb with physical addrs to device memory */
 	data->mapped_ccb = (struct ccb __iomem *)
 				(hw->ram_vaddr + (slot * ILOHW_CCB_SZ));
-	memcpy_toio(data->mapped_ccb, ilo_ccb, sizeof(struct ccb));
+	memcpy_toio(data->mapped_ccb, &data->ilo_ccb, sizeof(struct ccb));
 
 	/* put packets on the send and receive queues */
 	pkt_sz = 0;
@@ -306,7 +337,14 @@ static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
 	for (pkt_id = 0; pkt_id < NR_QENTRY; pkt_id++)
 		ilo_pkt_enqueue(hw, driver_ccb, RECVQ, pkt_id, pkt_sz);
 
+	/* the ccb is ready to use */
 	doorbell_clr(driver_ccb);
+}
+
+static int ilo_ccb_verify(struct ilo_hwinfo *hw, struct ccb_data *data)
+{
+	int pkt_id, i;
+	struct ccb *driver_ccb = &data->driver_ccb;
 
 	/* make sure iLO is really handling requests */
 	for (i = MAX_WAIT; i > 0; i--) {
@@ -315,20 +353,14 @@ static int ilo_ccb_open(struct ilo_hwinfo *hw, struct ccb_data *data, int slot)
 		udelay(WAIT_TIME);
 	}
 
-	if (i) {
-		ilo_pkt_enqueue(hw, driver_ccb, SENDQ, pkt_id, 0);
-		doorbell_set(driver_ccb);
-	} else {
-		dev_err(&pdev->dev, "Open could not dequeue a packet\n");
-		error = -EBUSY;
-		goto free;
+	if (i == 0) {
+		dev_err(&hw->ilo_dev->dev, "Open could not dequeue a packet\n");
+		return -EBUSY;
 	}
 
+	ilo_pkt_enqueue(hw, driver_ccb, SENDQ, pkt_id, 0);
+	doorbell_set(driver_ccb);
 	return 0;
-free:
-	ilo_ccb_close(pdev, data);
-out:
-	return error;
 }
 
 static inline int is_channel_reset(struct ccb *ccb)
@@ -343,19 +375,45 @@ static inline void set_channel_reset(struct ccb *ccb)
 	FIFOBARTOHANDLE(ccb->ccb_u1.send_fifobar)->reset = 1;
 }
 
+static inline int get_device_outbound(struct ilo_hwinfo *hw)
+{
+	return ioread32(&hw->mmio_vaddr[DB_OUT]);
+}
+
+static inline int is_db_reset(int db_out)
+{
+	return db_out & (1 << DB_RESET);
+}
+
 static inline int is_device_reset(struct ilo_hwinfo *hw)
 {
 	/* check for global reset condition */
-	return ioread32(&hw->mmio_vaddr[DB_OUT]) & (1 << DB_RESET);
+	return is_db_reset(get_device_outbound(hw));
+}
+
+static inline void clear_pending_db(struct ilo_hwinfo *hw, int clr)
+{
+	iowrite32(clr, &hw->mmio_vaddr[DB_OUT]);
 }
 
 static inline void clear_device(struct ilo_hwinfo *hw)
 {
 	/* clear the device (reset bits, pending channel entries) */
-	iowrite32(-1, &hw->mmio_vaddr[DB_OUT]);
+	clear_pending_db(hw, -1);
+}
+
+static inline void ilo_enable_interrupts(struct ilo_hwinfo *hw)
+{
+	iowrite8(ioread8(&hw->mmio_vaddr[DB_IRQ]) | 1, &hw->mmio_vaddr[DB_IRQ]);
 }
 
-static void ilo_locked_reset(struct ilo_hwinfo *hw)
+static inline void ilo_disable_interrupts(struct ilo_hwinfo *hw)
+{
+	iowrite8(ioread8(&hw->mmio_vaddr[DB_IRQ]) & ~1,
+		 &hw->mmio_vaddr[DB_IRQ]);
+}
+
+static void ilo_set_reset(struct ilo_hwinfo *hw)
 {
 	int slot;
 
@@ -368,40 +426,22 @@ static void ilo_locked_reset(struct ilo_hwinfo *hw)
 			continue;
 		set_channel_reset(&hw->ccb_alloc[slot]->driver_ccb);
 	}
-
-	clear_device(hw);
-}
-
-static void ilo_reset(struct ilo_hwinfo *hw)
-{
-	spin_lock(&hw->alloc_lock);
-
-	/* reset might have been handled after lock was taken */
-	if (is_device_reset(hw))
-		ilo_locked_reset(hw);
-
-	spin_unlock(&hw->alloc_lock);
 }
 
 static ssize_t ilo_read(struct file *fp, char __user *buf,
 			size_t len, loff_t *off)
 {
 	int err, found, cnt, pkt_id, pkt_len;
-	struct ccb_data *data;
-	struct ccb *driver_ccb;
-	struct ilo_hwinfo *hw;
+	struct ccb_data *data = fp->private_data;
+	struct ccb *driver_ccb = &data->driver_ccb;
+	struct ilo_hwinfo *hw = data->ilo_hw;
 	void *pkt;
 
-	data = fp->private_data;
-	driver_ccb = &data->driver_ccb;
-	hw = data->ilo_hw;
-
-	if (is_device_reset(hw) || is_channel_reset(driver_ccb)) {
+	if (is_channel_reset(driver_ccb)) {
 		/*
 		 * If the device has been reset, applications
 		 * need to close and reopen all ccbs.
 		 */
-		ilo_reset(hw);
 		return -ENODEV;
 	}
 
@@ -442,23 +482,13 @@ static ssize_t ilo_write(struct file *fp, const char __user *buf,
 			 size_t len, loff_t *off)
 {
 	int err, pkt_id, pkt_len;
-	struct ccb_data *data;
-	struct ccb *driver_ccb;
-	struct ilo_hwinfo *hw;
+	struct ccb_data *data = fp->private_data;
+	struct ccb *driver_ccb = &data->driver_ccb;
+	struct ilo_hwinfo *hw = data->ilo_hw;
 	void *pkt;
 
-	data = fp->private_data;
-	driver_ccb = &data->driver_ccb;
-	hw = data->ilo_hw;
-
-	if (is_device_reset(hw) || is_channel_reset(driver_ccb)) {
-		/*
-		 * If the device has been reset, applications
-		 * need to close and reopen all ccbs.
-		 */
-		ilo_reset(hw);
+	if (is_channel_reset(driver_ccb))
 		return -ENODEV;
-	}
 
 	/* get a packet to send the user command */
 	if (!ilo_pkt_dequeue(hw, driver_ccb, SENDQ, &pkt_id, &pkt_len, &pkt))
@@ -480,32 +510,48 @@ static ssize_t ilo_write(struct file *fp, const char __user *buf,
 	return err ? -EFAULT : len;
 }
 
+static unsigned int ilo_poll(struct file *fp, poll_table *wait)
+{
+	struct ccb_data *data = fp->private_data;
+	struct ccb *driver_ccb = &data->driver_ccb;
+
+	poll_wait(fp, &data->ccb_waitq, wait);
+
+	if (is_channel_reset(driver_ccb))
+		return POLLERR;
+	else if (ilo_pkt_recv(data->ilo_hw, driver_ccb))
+		return POLLIN | POLLRDNORM;
+
+	return 0;
+}
+
 static int ilo_close(struct inode *ip, struct file *fp)
 {
 	int slot;
 	struct ccb_data *data;
 	struct ilo_hwinfo *hw;
+	unsigned long flags;
 
 	slot = iminor(ip) % MAX_CCB;
 	hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev);
 
-	spin_lock(&hw->alloc_lock);
-
-	if (is_device_reset(hw))
-		ilo_locked_reset(hw);
+	spin_lock(&hw->open_lock);
 
 	if (hw->ccb_alloc[slot]->ccb_cnt == 1) {
 
 		data = fp->private_data;
 
+		spin_lock_irqsave(&hw->alloc_lock, flags);
+		hw->ccb_alloc[slot] = NULL;
+		spin_unlock_irqrestore(&hw->alloc_lock, flags);
+
 		ilo_ccb_close(hw->ilo_dev, data);
 
 		kfree(data);
-		hw->ccb_alloc[slot] = NULL;
 	} else
 		hw->ccb_alloc[slot]->ccb_cnt--;
 
-	spin_unlock(&hw->alloc_lock);
+	spin_unlock(&hw->open_lock);
 
 	return 0;
 }
@@ -515,6 +561,7 @@ static int ilo_open(struct inode *ip, struct file *fp)
 	int slot, error;
 	struct ccb_data *data;
 	struct ilo_hwinfo *hw;
+	unsigned long flags;
 
 	slot = iminor(ip) % MAX_CCB;
 	hw = container_of(ip->i_cdev, struct ilo_hwinfo, cdev);
@@ -524,22 +571,42 @@ static int ilo_open(struct inode *ip, struct file *fp)
 	if (!data)
 		return -ENOMEM;
 
-	spin_lock(&hw->alloc_lock);
-
-	if (is_device_reset(hw))
-		ilo_locked_reset(hw);
+	spin_lock(&hw->open_lock);
 
 	/* each fd private_data holds sw/hw view of ccb */
 	if (hw->ccb_alloc[slot] == NULL) {
 		/* create a channel control block for this minor */
-		error = ilo_ccb_open(hw, data, slot);
-		if (!error) {
-			hw->ccb_alloc[slot] = data;
-			hw->ccb_alloc[slot]->ccb_cnt = 1;
-			hw->ccb_alloc[slot]->ccb_excl = fp->f_flags & O_EXCL;
-			hw->ccb_alloc[slot]->ilo_hw = hw;
-		} else
+		error = ilo_ccb_setup(hw, data, slot);
+		if (error) {
 			kfree(data);
+			goto out;
+		}
+
+		data->ccb_cnt = 1;
+		data->ccb_excl = fp->f_flags & O_EXCL;
+		data->ilo_hw = hw;
+		init_waitqueue_head(&data->ccb_waitq);
+
+		/* write the ccb to hw */
+		spin_lock_irqsave(&hw->alloc_lock, flags);
+		ilo_ccb_open(hw, data, slot);
+		hw->ccb_alloc[slot] = data;
+		spin_unlock_irqrestore(&hw->alloc_lock, flags);
+
+		/* make sure the channel is functional */
+		error = ilo_ccb_verify(hw, data);
+		if (error) {
+
+			spin_lock_irqsave(&hw->alloc_lock, flags);
+			hw->ccb_alloc[slot] = NULL;
+			spin_unlock_irqrestore(&hw->alloc_lock, flags);
+
+			ilo_ccb_close(hw->ilo_dev, data);
+
+			kfree(data);
+			goto out;
+		}
+
 	} else {
 		kfree(data);
 		if (fp->f_flags & O_EXCL || hw->ccb_alloc[slot]->ccb_excl) {
@@ -554,7 +621,8 @@ static int ilo_open(struct inode *ip, struct file *fp)
 			error = 0;
 		}
 	}
-	spin_unlock(&hw->alloc_lock);
+out:
+	spin_unlock(&hw->open_lock);
 
 	if (!error)
 		fp->private_data = hw->ccb_alloc[slot];
@@ -566,10 +634,46 @@ static const struct file_operations ilo_fops = {
 	.owner		= THIS_MODULE,
 	.read		= ilo_read,
 	.write		= ilo_write,
+	.poll		= ilo_poll,
 	.open 		= ilo_open,
 	.release 	= ilo_close,
 };
 
+static irqreturn_t ilo_isr(int irq, void *data)
+{
+	struct ilo_hwinfo *hw = data;
+	int pending, i;
+
+	spin_lock(&hw->alloc_lock);
+
+	/* check for ccbs which have data */
+	pending = get_device_outbound(hw);
+	if (!pending) {
+		spin_unlock(&hw->alloc_lock);
+		return IRQ_NONE;
+	}
+
+	if (is_db_reset(pending)) {
+		/* wake up all ccbs if the device was reset */
+		pending = -1;
+		ilo_set_reset(hw);
+	}
+
+	for (i = 0; i < MAX_CCB; i++) {
+		if (!hw->ccb_alloc[i])
+			continue;
+		if (pending & (1 << i))
+			wake_up_interruptible(&hw->ccb_alloc[i]->ccb_waitq);
+	}
+
+	/* clear the device of the channels that have been handled */
+	clear_pending_db(hw, pending);
+
+	spin_unlock(&hw->alloc_lock);
+
+	return IRQ_HANDLED;
+}
+
 static void ilo_unmap_device(struct pci_dev *pdev, struct ilo_hwinfo *hw)
 {
 	pci_iounmap(pdev, hw->db_vaddr);
@@ -623,6 +727,8 @@ static void ilo_remove(struct pci_dev *pdev)
 		device_destroy(ilo_class, MKDEV(ilo_major, i));
 
 	cdev_del(&ilo_hw->cdev);
+	ilo_disable_interrupts(ilo_hw);
+	free_irq(pdev->irq, ilo_hw);
 	ilo_unmap_device(pdev, ilo_hw);
 	pci_release_regions(pdev);
 	pci_disable_device(pdev);
@@ -658,6 +764,7 @@ static int __devinit ilo_probe(struct pci_dev *pdev,
 	ilo_hw->ilo_dev = pdev;
 	spin_lock_init(&ilo_hw->alloc_lock);
 	spin_lock_init(&ilo_hw->fifo_lock);
+	spin_lock_init(&ilo_hw->open_lock);
 
 	error = pci_enable_device(pdev);
 	if (error)
@@ -676,13 +783,19 @@ static int __devinit ilo_probe(struct pci_dev *pdev,
 	pci_set_drvdata(pdev, ilo_hw);
 	clear_device(ilo_hw);
 
+	error = request_irq(pdev->irq, ilo_isr, IRQF_SHARED, "hpilo", ilo_hw);
+	if (error)
+		goto unmap;
+
+	ilo_enable_interrupts(ilo_hw);
+
 	cdev_init(&ilo_hw->cdev, &ilo_fops);
 	ilo_hw->cdev.owner = THIS_MODULE;
 	start = devnum * MAX_CCB;
 	error = cdev_add(&ilo_hw->cdev, MKDEV(ilo_major, start), MAX_CCB);
 	if (error) {
 		dev_err(&pdev->dev, "Could not add cdev\n");
-		goto unmap;
+		goto remove_isr;
 	}
 
 	for (minor = 0 ; minor < MAX_CCB; minor++) {
@@ -695,6 +808,9 @@ static int __devinit ilo_probe(struct pci_dev *pdev,
 	}
 
 	return 0;
+remove_isr:
+	ilo_disable_interrupts(ilo_hw);
+	free_irq(pdev->irq, ilo_hw);
 unmap:
 	ilo_unmap_device(pdev, ilo_hw);
 free_regions:
@@ -759,7 +875,7 @@ static void __exit ilo_exit(void)
 	class_destroy(ilo_class);
 }
 
-MODULE_VERSION("1.1");
+MODULE_VERSION("1.2");
 MODULE_ALIAS(ILO_NAME);
 MODULE_DESCRIPTION(ILO_NAME);
 MODULE_AUTHOR("David Altobelli <david.altobelli@hp.com>");
diff --git a/drivers/misc/hpilo.h b/drivers/misc/hpilo.h
index 03a14c82aad..38576050776 100644
--- a/drivers/misc/hpilo.h
+++ b/drivers/misc/hpilo.h
@@ -46,11 +46,14 @@ struct ilo_hwinfo {
 
 	spinlock_t alloc_lock;
 	spinlock_t fifo_lock;
+	spinlock_t open_lock;
 
 	struct cdev cdev;
 };
 
-/* offset from mmio_vaddr */
+/* offset from mmio_vaddr for enabling doorbell interrupts */
+#define DB_IRQ		0xB2
+/* offset from mmio_vaddr for outbound communications */
 #define DB_OUT		0xD4
 /* DB_OUT reset bit */
 #define DB_RESET	26
@@ -131,6 +134,9 @@ struct ccb_data {
 	/* pointer to hardware device info */
 	struct ilo_hwinfo *ilo_hw;
 
+	/* queue for this ccb to wait for recv data */
+	wait_queue_head_t ccb_waitq;
+
 	/* usage count, to allow for shared ccb's */
 	int	    ccb_cnt;
 
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index de966a6fb7e..aecf40ecb3a 100644
--- a/drivers/misc/ibmasm/ibmasmfs.c
+++ b/drivers/misc/ibmasm/ibmasmfs.c
@@ -97,7 +97,7 @@ static int ibmasmfs_get_super(struct file_system_type *fst,
 	return get_sb_single(fst, flags, data, ibmasmfs_fill_super, mnt);
 }
 
-static struct super_operations ibmasmfs_s_ops = {
+static const struct super_operations ibmasmfs_s_ops = {
 	.statfs		= simple_statfs,
 	.drop_inode	= generic_delete_inode,
 };
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 1bfe5d16963..3648b23d5c9 100644
--- a/drivers/misc/lkdtm.c
+++ b/drivers/misc/lkdtm.c
@@ -283,7 +283,7 @@ static int __init lkdtm_module_init(void)
 
 	switch (cpoint) {
 	case INT_HARDWARE_ENTRY:
-		lkdtm.kp.symbol_name = "__do_IRQ";
+		lkdtm.kp.symbol_name = "do_IRQ";
 		lkdtm.entry = (kprobe_opcode_t*) jp_do_irq;
 		break;
 	case INT_HW_IRQ_EN:
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c
index 915a3b495da..8b70e03f939 100644
--- a/drivers/misc/sgi-xp/xpc_sn2.c
+++ b/drivers/misc/sgi-xp/xpc_sn2.c
@@ -279,7 +279,7 @@ xpc_check_for_sent_chctl_flags_sn2(struct xpc_partition *part)
 	spin_unlock_irqrestore(&part->chctl_lock, irq_flags);
 
 	dev_dbg(xpc_chan, "received notify IRQ from partid=%d, chctl.all_flags="
-		"0x%lx\n", XPC_PARTID(part), chctl.all_flags);
+		"0x%llx\n", XPC_PARTID(part), chctl.all_flags);
 
 	xpc_wakeup_channel_mgr(part);
 }
@@ -615,7 +615,8 @@ xpc_get_partition_rsvd_page_pa_sn2(void *buf, u64 *cookie, unsigned long *rp_pa,
 	s64 status;
 	enum xp_retval ret;
 
-	status = sn_partition_reserved_page_pa((u64)buf, cookie, rp_pa, len);
+	status = sn_partition_reserved_page_pa((u64)buf, cookie,
+			(u64 *)rp_pa, (u64 *)len);
 	if (status == SALRET_OK)
 		ret = xpSuccess;
 	else if (status == SALRET_MORE_PASSES)
@@ -777,8 +778,8 @@ xpc_get_remote_heartbeat_sn2(struct xpc_partition *part)
 	if (ret != xpSuccess)
 		return ret;
 
-	dev_dbg(xpc_part, "partid=%d, heartbeat=%ld, last_heartbeat=%ld, "
-		"heartbeat_offline=%ld, HB_mask[0]=0x%lx\n", XPC_PARTID(part),
+	dev_dbg(xpc_part, "partid=%d, heartbeat=%lld, last_heartbeat=%lld, "
+		"heartbeat_offline=%lld, HB_mask[0]=0x%lx\n", XPC_PARTID(part),
 		remote_vars->heartbeat, part->last_heartbeat,
 		remote_vars->heartbeat_offline,
 		remote_vars->heartbeating_to_mask[0]);
@@ -940,7 +941,7 @@ xpc_update_partition_info_sn2(struct xpc_partition *part, u8 remote_rp_version,
 		part_sn2->remote_vars_pa);
 
 	part->last_heartbeat = remote_vars->heartbeat - 1;
-	dev_dbg(xpc_part, "  last_heartbeat = 0x%016lx\n",
+	dev_dbg(xpc_part, "  last_heartbeat = 0x%016llx\n",
 		part->last_heartbeat);
 
 	part_sn2->remote_vars_part_pa = remote_vars->vars_part_pa;
@@ -1029,7 +1030,8 @@ xpc_identify_activate_IRQ_req_sn2(int nasid)
 	part->activate_IRQ_rcvd++;
 
 	dev_dbg(xpc_part, "partid for nasid %d is %d; IRQs = %d; HB = "
-		"%ld:0x%lx\n", (int)nasid, (int)partid, part->activate_IRQ_rcvd,
+		"%lld:0x%lx\n", (int)nasid, (int)partid,
+		part->activate_IRQ_rcvd,
 		remote_vars->heartbeat, remote_vars->heartbeating_to_mask[0]);
 
 	if (xpc_partition_disengaged(part) &&
@@ -1129,7 +1131,7 @@ xpc_identify_activate_IRQ_sender_sn2(void)
 		do {
 			n_IRQs_detected++;
 			nasid = (l * BITS_PER_LONG + b) * 2;
-			dev_dbg(xpc_part, "interrupt from nasid %ld\n", nasid);
+			dev_dbg(xpc_part, "interrupt from nasid %lld\n", nasid);
 			xpc_identify_activate_IRQ_req_sn2(nasid);
 
 			b = find_next_bit(&nasid_mask_long, BITS_PER_LONG,
@@ -1386,7 +1388,7 @@ xpc_pull_remote_vars_part_sn2(struct xpc_partition *part)
 
 		if (pulled_entry->magic != 0) {
 			dev_dbg(xpc_chan, "partition %d's XPC vars_part for "
-				"partition %d has bad magic value (=0x%lx)\n",
+				"partition %d has bad magic value (=0x%llx)\n",
 				partid, sn_partition_id, pulled_entry->magic);
 			return xpBadMagic;
 		}
@@ -1730,14 +1732,14 @@ xpc_notify_senders_sn2(struct xpc_channel *ch, enum xp_retval reason, s64 put)
 
 		if (notify->func != NULL) {
 			dev_dbg(xpc_chan, "notify->func() called, notify=0x%p "
-				"msg_number=%ld partid=%d channel=%d\n",
+				"msg_number=%lld partid=%d channel=%d\n",
 				(void *)notify, get, ch->partid, ch->number);
 
 			notify->func(reason, ch->partid, ch->number,
 				     notify->key);
 
 			dev_dbg(xpc_chan, "notify->func() returned, notify=0x%p"
-				" msg_number=%ld partid=%d channel=%d\n",
+				" msg_number=%lld partid=%d channel=%d\n",
 				(void *)notify, get, ch->partid, ch->number);
 		}
 	}
@@ -1858,7 +1860,7 @@ xpc_process_msg_chctl_flags_sn2(struct xpc_partition *part, int ch_number)
 
 		ch_sn2->w_remote_GP.get = ch_sn2->remote_GP.get;
 
-		dev_dbg(xpc_chan, "w_remote_GP.get changed to %ld, partid=%d, "
+		dev_dbg(xpc_chan, "w_remote_GP.get changed to %lld, partid=%d, "
 			"channel=%d\n", ch_sn2->w_remote_GP.get, ch->partid,
 			ch->number);
 
@@ -1885,7 +1887,7 @@ xpc_process_msg_chctl_flags_sn2(struct xpc_partition *part, int ch_number)
 		smp_wmb(); /* ensure flags have been cleared before bte_copy */
 		ch_sn2->w_remote_GP.put = ch_sn2->remote_GP.put;
 
-		dev_dbg(xpc_chan, "w_remote_GP.put changed to %ld, partid=%d, "
+		dev_dbg(xpc_chan, "w_remote_GP.put changed to %lld, partid=%d, "
 			"channel=%d\n", ch_sn2->w_remote_GP.put, ch->partid,
 			ch->number);
 
@@ -1943,7 +1945,7 @@ xpc_pull_remote_msg_sn2(struct xpc_channel *ch, s64 get)
 		if (ret != xpSuccess) {
 
 			dev_dbg(xpc_chan, "failed to pull %d msgs starting with"
-				" msg %ld from partition %d, channel=%d, "
+				" msg %lld from partition %d, channel=%d, "
 				"ret=%d\n", nmsgs, ch_sn2->next_msg_to_pull,
 				ch->partid, ch->number, ret);
 
@@ -1995,7 +1997,7 @@ xpc_get_deliverable_payload_sn2(struct xpc_channel *ch)
 		if (cmpxchg(&ch_sn2->w_local_GP.get, get, get + 1) == get) {
 			/* we got the entry referenced by get */
 
-			dev_dbg(xpc_chan, "w_local_GP.get changed to %ld, "
+			dev_dbg(xpc_chan, "w_local_GP.get changed to %lld, "
 				"partid=%d, channel=%d\n", get + 1,
 				ch->partid, ch->number);
 
@@ -2062,7 +2064,7 @@ xpc_send_msgs_sn2(struct xpc_channel *ch, s64 initial_put)
 
 		/* we just set the new value of local_GP->put */
 
-		dev_dbg(xpc_chan, "local_GP->put changed to %ld, partid=%d, "
+		dev_dbg(xpc_chan, "local_GP->put changed to %lld, partid=%d, "
 			"channel=%d\n", put, ch->partid, ch->number);
 
 		send_msgrequest = 1;
@@ -2147,8 +2149,8 @@ xpc_allocate_msg_sn2(struct xpc_channel *ch, u32 flags,
 	DBUG_ON(msg->flags != 0);
 	msg->number = put;
 
-	dev_dbg(xpc_chan, "w_local_GP.put changed to %ld; msg=0x%p, "
-		"msg_number=%ld, partid=%d, channel=%d\n", put + 1,
+	dev_dbg(xpc_chan, "w_local_GP.put changed to %lld; msg=0x%p, "
+		"msg_number=%lld, partid=%d, channel=%d\n", put + 1,
 		(void *)msg, msg->number, ch->partid, ch->number);
 
 	*address_of_msg = msg;
@@ -2296,7 +2298,7 @@ xpc_acknowledge_msgs_sn2(struct xpc_channel *ch, s64 initial_get, u8 msg_flags)
 
 		/* we just set the new value of local_GP->get */
 
-		dev_dbg(xpc_chan, "local_GP->get changed to %ld, partid=%d, "
+		dev_dbg(xpc_chan, "local_GP->get changed to %lld, partid=%d, "
 			"channel=%d\n", get, ch->partid, ch->number);
 
 		send_msgrequest = (msg_flags & XPC_M_SN2_INTERRUPT);
@@ -2323,7 +2325,7 @@ xpc_received_payload_sn2(struct xpc_channel *ch, void *payload)
 	msg = container_of(payload, struct xpc_msg_sn2, payload);
 	msg_number = msg->number;
 
-	dev_dbg(xpc_chan, "msg=0x%p, msg_number=%ld, partid=%d, channel=%d\n",
+	dev_dbg(xpc_chan, "msg=0x%p, msg_number=%lld, partid=%d, channel=%d\n",
 		(void *)msg, msg_number, ch->partid, ch->number);
 
 	DBUG_ON((((u64)msg - (u64)ch->sn.sn2.remote_msgqueue) / ch->entry_size) !=
diff --git a/drivers/misc/sgi-xp/xpnet.c b/drivers/misc/sgi-xp/xpnet.c
index 5d778ec8cdb..16f0abda142 100644
--- a/drivers/misc/sgi-xp/xpnet.c
+++ b/drivers/misc/sgi-xp/xpnet.c
@@ -240,7 +240,6 @@ xpnet_receive(short partid, int channel, struct xpnet_message *msg)
 		(void *)skb->head, (void *)skb->data, skb_tail_pointer(skb),
 		skb_end_pointer(skb), skb->len);
 
-	xpnet_device->last_rx = jiffies;
 	xpnet_device->stats.rx_packets++;
 	xpnet_device->stats.rx_bytes += skb->len + ETH_HLEN;
 
@@ -436,7 +435,7 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 
 	if (skb->data[0] == 0x33) {
 		dev_kfree_skb(skb);
-		return 0;	/* nothing needed to be done */
+		return NETDEV_TX_OK;	/* nothing needed to be done */
 	}
 
 	/*
@@ -503,7 +502,7 @@ xpnet_dev_hard_start_xmit(struct sk_buff *skb, struct net_device *dev)
 	dev->stats.tx_packets++;
 	dev->stats.tx_bytes += skb->len;
 
-	return 0;
+	return NETDEV_TX_OK;
 }
 
 /*