Merge commit 'v2.6.32-rc5' into for-linus

16 files changed, 253 insertions, 143 deletions

diff --git a/drivers/misc/eeprom/at25.c b/drivers/misc/eeprom/at25.c
index 2e535a0ccd5e..d902d81dde39 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/eeprom/max6875.c b/drivers/misc/eeprom/max6875.c
index 3c0c58eed347..5a6b2bce8ad5 100644
--- a/drivers/misc/eeprom/max6875.c
+++ b/drivers/misc/eeprom/max6875.c
@@ -33,12 +33,6 @@
 #include <linux/i2c.h>
 #include <linux/mutex.h>
 
-/* Do not scan - the MAX6875 access method will write to some EEPROM chips */
-static const unsigned short normal_i2c[] = { I2C_CLIENT_END };
-
-/* Insmod parameters */
-I2C_CLIENT_INSMOD_1(max6875);
-
 /* The MAX6875 can only read/write 16 bytes at a time */
 #define SLICE_SIZE			16
 #define SLICE_BITS			4
@@ -146,31 +140,21 @@ static struct bin_attribute user_eeprom_attr = {
 	.read = max6875_read,
 };
 
-/* Return 0 if detection is successful, -ENODEV otherwise */
-static int max6875_detect(struct i2c_client *client, int kind,
-			  struct i2c_board_info *info)
+static int max6875_probe(struct i2c_client *client,
+			 const struct i2c_device_id *id)
 {
 	struct i2c_adapter *adapter = client->adapter;
+	struct max6875_data *data;
+	int err;
 
 	if (!i2c_check_functionality(adapter, I2C_FUNC_SMBUS_WRITE_BYTE_DATA
 				     | I2C_FUNC_SMBUS_READ_BYTE))
 		return -ENODEV;
 
-	/* Only check even addresses */
+	/* Only bind to even addresses */
 	if (client->addr & 1)
 		return -ENODEV;
 
-	strlcpy(info->type, "max6875", I2C_NAME_SIZE);
-
-	return 0;
-}
-
-static int max6875_probe(struct i2c_client *client,
-			 const struct i2c_device_id *id)
-{
-	struct max6875_data *data;
-	int err;
-
 	if (!(data = kzalloc(sizeof(struct max6875_data), GFP_KERNEL)))
 		return -ENOMEM;
 
@@ -222,9 +206,6 @@ static struct i2c_driver max6875_driver = {
 	.probe		= max6875_probe,
 	.remove		= max6875_remove,
 	.id_table	= max6875_id,
-
-	.detect		= max6875_detect,
-	.address_data	= &addr_data,
 };
 
 static int __init max6875_init(void)
diff --git a/drivers/misc/enclosure.c b/drivers/misc/enclosure.c
index 7b039306037f..e9eae4a78402 100644
--- a/drivers/misc/enclosure.c
+++ b/drivers/misc/enclosure.c
@@ -238,7 +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
@@ -536,7 +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/hpilo.c b/drivers/misc/hpilo.c
index 880ccf39e23b..a92a3a742b43 100644
--- a/drivers/misc/hpilo.c
+++ b/drivers/misc/hpilo.c
@@ -13,14 +13,18 @@
 #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>
 #include <linux/cdev.h>
+#include <linux/sched.h>
 #include <linux/spinlock.h>
 #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 +65,10 @@ 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 +76,7 @@ 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 +84,11 @@ 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 +99,23 @@ 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 +164,13 @@ 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 +180,7 @@ 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 +190,7 @@ 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 +223,10 @@ 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 +253,22 @@ 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 +314,18 @@ 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 +338,14 @@ 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 +354,14 @@ 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 +376,45 @@ 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 +427,22 @@ 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 +483,13 @@ 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 +511,48 @@ 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 +562,7 @@ 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 +572,42 @@ 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 +622,8 @@ 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 +635,46 @@ 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 +728,8 @@ 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 +765,7 @@ 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 +784,19 @@ 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 +809,9 @@ 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 +876,7 @@ 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 03a14c82aad9..38576050776a 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/command.c b/drivers/misc/ibmasm/command.c
index 276d3fb68094..e2031739aa29 100644
--- a/drivers/misc/ibmasm/command.c
+++ b/drivers/misc/ibmasm/command.c
@@ -22,6 +22,7 @@
  *
  */
 
+#include <linux/sched.h>
 #include "ibmasm.h"
 #include "lowlevel.h"
 
diff --git a/drivers/misc/ibmasm/event.c b/drivers/misc/ibmasm/event.c
index 68a0a5b94795..572d41ffc186 100644
--- a/drivers/misc/ibmasm/event.c
+++ b/drivers/misc/ibmasm/event.c
@@ -22,6 +22,7 @@
  *
  */
 
+#include <linux/sched.h>
 #include "ibmasm.h"
 #include "lowlevel.h"
 
diff --git a/drivers/misc/ibmasm/ibmasmfs.c b/drivers/misc/ibmasm/ibmasmfs.c
index de966a6fb7e6..aecf40ecb3a4 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/ibmasm/r_heartbeat.c b/drivers/misc/ibmasm/r_heartbeat.c
index bec9e2c44bef..2de487ac788c 100644
--- a/drivers/misc/ibmasm/r_heartbeat.c
+++ b/drivers/misc/ibmasm/r_heartbeat.c
@@ -20,6 +20,7 @@
  *
  */
 
+#include <linux/sched.h>
 #include "ibmasm.h"
 #include "dot_command.h"
 
diff --git a/drivers/misc/lkdtm.c b/drivers/misc/lkdtm.c
index 1bfe5d16963b..3648b23d5c92 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/phantom.c b/drivers/misc/phantom.c
index fa57b67593ae..04c27266f567 100644
--- a/drivers/misc/phantom.c
+++ b/drivers/misc/phantom.c
@@ -22,6 +22,7 @@
 #include <linux/interrupt.h>
 #include <linux/cdev.h>
 #include <linux/phantom.h>
+#include <linux/sched.h>
 #include <linux/smp_lock.h>
 
 #include <asm/atomic.h>
@@ -271,7 +272,7 @@ static unsigned int phantom_poll(struct file *file, poll_table *wait)
 	return mask;
 }
 
-static struct file_operations phantom_file_ops = {
+static const struct file_operations phantom_file_ops = {
 	.open = phantom_open,
 	.release = phantom_release,
 	.unlocked_ioctl = phantom_ioctl,
diff --git a/drivers/misc/sgi-gru/grufile.c b/drivers/misc/sgi-gru/grufile.c
index aed609832bc2..41c8fe2a928c 100644
--- a/drivers/misc/sgi-gru/grufile.c
+++ b/drivers/misc/sgi-gru/grufile.c
@@ -53,7 +53,6 @@ struct gru_stats_s gru_stats;
 /* Guaranteed user available resources on each node */
 static int max_user_cbrs, max_user_dsr_bytes;
 
-static struct file_operations gru_fops;
 static struct miscdevice gru_miscdev;
 
 
@@ -426,7 +425,7 @@ static void __exit gru_exit(void)
 	gru_proc_exit();
 }
 
-static struct file_operations gru_fops = {
+static const struct file_operations gru_fops = {
 	.owner		= THIS_MODULE,
 	.unlocked_ioctl	= gru_file_unlocked_ioctl,
 	.mmap		= gru_file_mmap,
@@ -438,7 +437,7 @@ static struct miscdevice gru_miscdev = {
 	.fops		= &gru_fops,
 };
 
-struct vm_operations_struct gru_vm_ops = {
+const struct vm_operations_struct gru_vm_ops = {
 	.close		= gru_vma_close,
 	.fault		= gru_fault,
 };
diff --git a/drivers/misc/sgi-gru/grukservices.c b/drivers/misc/sgi-gru/grukservices.c
index 79689b10f937..766e21e15574 100644
--- a/drivers/misc/sgi-gru/grukservices.c
+++ b/drivers/misc/sgi-gru/grukservices.c
@@ -937,6 +937,8 @@ static int quicktest1(unsigned long arg)
 
 	/* Need  1K cacheline aligned that does not cross page boundary */
 	p = kmalloc(4096, 0);
+	if (p == NULL)
+		return -ENOMEM;
 	mq = ALIGNUP(p, 1024);
 	memset(mes, 0xee, sizeof(mes));
 	dw = mq;
diff --git a/drivers/misc/sgi-gru/gruprocfs.c b/drivers/misc/sgi-gru/gruprocfs.c
index 9cbf95bedce6..ccd4408a26c7 100644
--- a/drivers/misc/sgi-gru/gruprocfs.c
+++ b/drivers/misc/sgi-gru/gruprocfs.c
@@ -340,10 +340,9 @@ static struct proc_dir_entry *proc_gru __read_mostly;
 
 static int create_proc_file(struct proc_entry *p)
 {
-	p->entry = create_proc_entry(p->name, p->mode, proc_gru);
+	p->entry = proc_create(p->name, p->mode, proc_gru, p->fops);
 	if (!p->entry)
 		return -1;
-	p->entry->proc_fops = p->fops;
 	return 0;
 }
 
diff --git a/drivers/misc/sgi-gru/grutables.h b/drivers/misc/sgi-gru/grutables.h
index 34ab3d453919..46990bcfa536 100644
--- a/drivers/misc/sgi-gru/grutables.h
+++ b/drivers/misc/sgi-gru/grutables.h
@@ -624,7 +624,7 @@ static inline int is_kernel_context(struct gru_thread_state *gts)
  */
 struct gru_unload_context_req;
 
-extern struct vm_operations_struct gru_vm_ops;
+extern const struct vm_operations_struct gru_vm_ops;
 extern struct device *grudev;
 
 extern struct gru_vma_data *gru_alloc_vma_data(struct vm_area_struct *vma,
diff --git a/drivers/misc/sgi-xp/xpc_sn2.c b/drivers/misc/sgi-xp/xpc_sn2.c
index 915a3b495da5..8b70e03f939f 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) !=