Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6

Conflicts:
	arch/sh/kernel/process_32.c

Signed-off-by: Paul Mundt <lethal@linux-sh.org>

38 files changed, 336 insertions, 211 deletions

diff --git a/drivers/ata/sata_dwc_460ex.c b/drivers/ata/sata_dwc_460ex.c
index ea24c1e51be2..2673a3d14806 100644
--- a/drivers/ata/sata_dwc_460ex.c
+++ b/drivers/ata/sata_dwc_460ex.c
@@ -1588,7 +1588,7 @@ static const struct ata_port_info sata_dwc_port_info[] = {
 	},
 };
 
-static int sata_dwc_probe(struct of_device *ofdev,
+static int sata_dwc_probe(struct platform_device *ofdev,
 			const struct of_device_id *match)
 {
 	struct sata_dwc_device *hsdev;
@@ -1702,7 +1702,7 @@ error_out:
 	return err;
 }
 
-static int sata_dwc_remove(struct of_device *ofdev)
+static int sata_dwc_remove(struct platform_device *ofdev)
 {
 	struct device *dev = &ofdev->dev;
 	struct ata_host *host = dev_get_drvdata(dev);
diff --git a/drivers/block/xsysace.c b/drivers/block/xsysace.c
index 2982b3ee9465..057413bb16e2 100644
--- a/drivers/block/xsysace.c
+++ b/drivers/block/xsysace.c
@@ -94,6 +94,7 @@
 #include <linux/hdreg.h>
 #include <linux/platform_device.h>
 #if defined(CONFIG_OF)
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #endif
diff --git a/drivers/char/pty.c b/drivers/char/pty.c
index ad46eae1f9bb..c350d01716bd 100644
--- a/drivers/char/pty.c
+++ b/drivers/char/pty.c
@@ -675,8 +675,8 @@ static int ptmx_open(struct inode *inode, struct file *filp)
 	}
 
 	set_bit(TTY_PTY_LOCK, &tty->flags); /* LOCK THE SLAVE */
-	filp->private_data = tty;
-	file_move(filp, &tty->tty_files);
+
+	tty_add_file(tty, filp);
 
 	retval = devpts_pty_new(inode, tty->link);
 	if (retval)
diff --git a/drivers/char/tty_io.c b/drivers/char/tty_io.c
index 0350c42375a2..949067a0bd47 100644
--- a/drivers/char/tty_io.c
+++ b/drivers/char/tty_io.c
@@ -136,6 +136,9 @@ LIST_HEAD(tty_drivers);			/* linked list of tty drivers */
 DEFINE_MUTEX(tty_mutex);
 EXPORT_SYMBOL(tty_mutex);
 
+/* Spinlock to protect the tty->tty_files list */
+DEFINE_SPINLOCK(tty_files_lock);
+
 static ssize_t tty_read(struct file *, char __user *, size_t, loff_t *);
 static ssize_t tty_write(struct file *, const char __user *, size_t, loff_t *);
 ssize_t redirected_tty_write(struct file *, const char __user *,
@@ -185,6 +188,41 @@ void free_tty_struct(struct tty_struct *tty)
 	kfree(tty);
 }
 
+static inline struct tty_struct *file_tty(struct file *file)
+{
+	return ((struct tty_file_private *)file->private_data)->tty;
+}
+
+/* Associate a new file with the tty structure */
+void tty_add_file(struct tty_struct *tty, struct file *file)
+{
+	struct tty_file_private *priv;
+
+	/* XXX: must implement proper error handling in callers */
+	priv = kmalloc(sizeof(*priv), GFP_KERNEL|__GFP_NOFAIL);
+
+	priv->tty = tty;
+	priv->file = file;
+	file->private_data = priv;
+
+	spin_lock(&tty_files_lock);
+	list_add(&priv->list, &tty->tty_files);
+	spin_unlock(&tty_files_lock);
+}
+
+/* Delete file from its tty */
+void tty_del_file(struct file *file)
+{
+	struct tty_file_private *priv = file->private_data;
+
+	spin_lock(&tty_files_lock);
+	list_del(&priv->list);
+	spin_unlock(&tty_files_lock);
+	file->private_data = NULL;
+	kfree(priv);
+}
+
+
 #define TTY_NUMBER(tty) ((tty)->index + (tty)->driver->name_base)
 
 /**
@@ -235,11 +273,11 @@ static int check_tty_count(struct tty_struct *tty, const char *routine)
 	struct list_head *p;
 	int count = 0;
 
-	file_list_lock();
+	spin_lock(&tty_files_lock);
 	list_for_each(p, &tty->tty_files) {
 		count++;
 	}
-	file_list_unlock();
+	spin_unlock(&tty_files_lock);
 	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
 	    tty->driver->subtype == PTY_TYPE_SLAVE &&
 	    tty->link && tty->link->count)
@@ -497,6 +535,7 @@ void __tty_hangup(struct tty_struct *tty)
 	struct file *cons_filp = NULL;
 	struct file *filp, *f = NULL;
 	struct task_struct *p;
+	struct tty_file_private *priv;
 	int    closecount = 0, n;
 	unsigned long flags;
 	int refs = 0;
@@ -506,7 +545,7 @@ void __tty_hangup(struct tty_struct *tty)
 
 
 	spin_lock(&redirect_lock);
-	if (redirect && redirect->private_data == tty) {
+	if (redirect && file_tty(redirect) == tty) {
 		f = redirect;
 		redirect = NULL;
 	}
@@ -519,9 +558,10 @@ void __tty_hangup(struct tty_struct *tty)
 	   workqueue with the lock held */
 	check_tty_count(tty, "tty_hangup");
 
-	file_list_lock();
+	spin_lock(&tty_files_lock);
 	/* This breaks for file handles being sent over AF_UNIX sockets ? */
-	list_for_each_entry(filp, &tty->tty_files, f_u.fu_list) {
+	list_for_each_entry(priv, &tty->tty_files, list) {
+		filp = priv->file;
 		if (filp->f_op->write == redirected_tty_write)
 			cons_filp = filp;
 		if (filp->f_op->write != tty_write)
@@ -530,7 +570,7 @@ void __tty_hangup(struct tty_struct *tty)
 		__tty_fasync(-1, filp, 0);	/* can't block */
 		filp->f_op = &hung_up_tty_fops;
 	}
-	file_list_unlock();
+	spin_unlock(&tty_files_lock);
 
 	tty_ldisc_hangup(tty);
 
@@ -889,12 +929,10 @@ static ssize_t tty_read(struct file *file, char __user *buf, size_t count,
 			loff_t *ppos)
 {
 	int i;
-	struct tty_struct *tty;
-	struct inode *inode;
+	struct inode *inode = file->f_path.dentry->d_inode;
+	struct tty_struct *tty = file_tty(file);
 	struct tty_ldisc *ld;
 
-	tty = file->private_data;
-	inode = file->f_path.dentry->d_inode;
 	if (tty_paranoia_check(tty, inode, "tty_read"))
 		return -EIO;
 	if (!tty || (test_bit(TTY_IO_ERROR, &tty->flags)))
@@ -1065,12 +1103,11 @@ void tty_write_message(struct tty_struct *tty, char *msg)
 static ssize_t tty_write(struct file *file, const char __user *buf,
 						size_t count, loff_t *ppos)
 {
-	struct tty_struct *tty;
 	struct inode *inode = file->f_path.dentry->d_inode;
+	struct tty_struct *tty = file_tty(file);
+ 	struct tty_ldisc *ld;
 	ssize_t ret;
-	struct tty_ldisc *ld;
 
-	tty = file->private_data;
 	if (tty_paranoia_check(tty, inode, "tty_write"))
 		return -EIO;
 	if (!tty || !tty->ops->write ||
@@ -1424,9 +1461,9 @@ static void release_one_tty(struct work_struct *work)
 	tty_driver_kref_put(driver);
 	module_put(driver->owner);
 
-	file_list_lock();
+	spin_lock(&tty_files_lock);
 	list_del_init(&tty->tty_files);
-	file_list_unlock();
+	spin_unlock(&tty_files_lock);
 
 	put_pid(tty->pgrp);
 	put_pid(tty->session);
@@ -1507,13 +1544,13 @@ static void release_tty(struct tty_struct *tty, int idx)
 
 int tty_release(struct inode *inode, struct file *filp)
 {
-	struct tty_struct *tty, *o_tty;
+	struct tty_struct *tty = file_tty(filp);
+	struct tty_struct *o_tty;
 	int	pty_master, tty_closing, o_tty_closing, do_sleep;
 	int	devpts;
 	int	idx;
 	char	buf[64];
 
-	tty = filp->private_data;
 	if (tty_paranoia_check(tty, inode, "tty_release_dev"))
 		return 0;
 
@@ -1671,8 +1708,7 @@ int tty_release(struct inode *inode, struct file *filp)
 	 *  - do_tty_hangup no longer sees this file descriptor as
 	 *    something that needs to be handled for hangups.
 	 */
-	file_kill(filp);
-	filp->private_data = NULL;
+	tty_del_file(filp);
 
 	/*
 	 * Perform some housekeeping before deciding whether to return.
@@ -1839,8 +1875,8 @@ got_driver:
 		return PTR_ERR(tty);
 	}
 
-	filp->private_data = tty;
-	file_move(filp, &tty->tty_files);
+	tty_add_file(tty, filp);
+
 	check_tty_count(tty, "tty_open");
 	if (tty->driver->type == TTY_DRIVER_TYPE_PTY &&
 	    tty->driver->subtype == PTY_TYPE_MASTER)
@@ -1916,11 +1952,10 @@ got_driver:
 
 static unsigned int tty_poll(struct file *filp, poll_table *wait)
 {
-	struct tty_struct *tty;
+	struct tty_struct *tty = file_tty(filp);
 	struct tty_ldisc *ld;
 	int ret = 0;
 
-	tty = filp->private_data;
 	if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, "tty_poll"))
 		return 0;
 
@@ -1933,11 +1968,10 @@ static unsigned int tty_poll(struct file *filp, poll_table *wait)
 
 static int __tty_fasync(int fd, struct file *filp, int on)
 {
-	struct tty_struct *tty;
+	struct tty_struct *tty = file_tty(filp);
 	unsigned long flags;
 	int retval = 0;
 
-	tty = filp->private_data;
 	if (tty_paranoia_check(tty, filp->f_path.dentry->d_inode, "tty_fasync"))
 		goto out;
 
@@ -2491,13 +2525,13 @@ EXPORT_SYMBOL(tty_pair_get_pty);
  */
 long tty_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 {
-	struct tty_struct *tty, *real_tty;
+	struct tty_struct *tty = file_tty(file);
+	struct tty_struct *real_tty;
 	void __user *p = (void __user *)arg;
 	int retval;
 	struct tty_ldisc *ld;
 	struct inode *inode = file->f_dentry->d_inode;
 
-	tty = file->private_data;
 	if (tty_paranoia_check(tty, inode, "tty_ioctl"))
 		return -EINVAL;
 
@@ -2619,7 +2653,7 @@ static long tty_compat_ioctl(struct file *file, unsigned int cmd,
 				unsigned long arg)
 {
 	struct inode *inode = file->f_dentry->d_inode;
-	struct tty_struct *tty = file->private_data;
+	struct tty_struct *tty = file_tty(file);
 	struct tty_ldisc *ld;
 	int retval = -ENOIOCTLCMD;
 
@@ -2711,7 +2745,7 @@ void __do_SAK(struct tty_struct *tty)
 				if (!filp)
 					continue;
 				if (filp->f_op->read == tty_read &&
-				    filp->private_data == tty) {
+				    file_tty(filp) == tty) {
 					printk(KERN_NOTICE "SAK: killed process %d"
 					    " (%s): fd#%d opened to the tty\n",
 					    task_pid_nr(p), p->comm, i);
diff --git a/drivers/char/vt.c b/drivers/char/vt.c
index c734f9b1263a..50590c7f2c01 100644
--- a/drivers/char/vt.c
+++ b/drivers/char/vt.c
@@ -194,10 +194,11 @@ static DECLARE_WORK(console_work, console_callback);
 int fg_console;
 int last_console;
 int want_console = -1;
-int saved_fg_console;
-int saved_last_console;
-int saved_want_console;
-int saved_vc_mode;
+static int saved_fg_console;
+static int saved_last_console;
+static int saved_want_console;
+static int saved_vc_mode;
+static int saved_console_blanked;
 
 /*
  * For each existing display, we have a pointer to console currently visible
@@ -3449,6 +3450,7 @@ int con_debug_enter(struct vc_data *vc)
 	saved_last_console = last_console;
 	saved_want_console = want_console;
 	saved_vc_mode = vc->vc_mode;
+	saved_console_blanked = console_blanked;
 	vc->vc_mode = KD_TEXT;
 	console_blanked = 0;
 	if (vc->vc_sw->con_debug_enter)
@@ -3492,6 +3494,7 @@ int con_debug_leave(void)
 	fg_console = saved_fg_console;
 	last_console = saved_last_console;
 	want_console = saved_want_console;
+	console_blanked = saved_console_blanked;
 	vc_cons[fg_console].d->vc_mode = saved_vc_mode;
 
 	vc = vc_cons[fg_console].d;
diff --git a/drivers/char/xilinx_hwicap/xilinx_hwicap.c b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
index 0ed763cd2e77..b663d573aad9 100644
--- a/drivers/char/xilinx_hwicap/xilinx_hwicap.c
+++ b/drivers/char/xilinx_hwicap/xilinx_hwicap.c
@@ -94,6 +94,7 @@
 
 #ifdef CONFIG_OF
 /* For open firmware. */
+#include <linux/of_address.h>
 #include <linux/of_device.h>
 #include <linux/of_platform.h>
 #endif
diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index e635199a0cd2..0c52899be964 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -1299,6 +1299,7 @@ static const struct hid_device_id hid_blacklist[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_CYPRESS, USB_DEVICE_ID_CYPRESS_MOUSE) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DRAGONRISE, 0x0006) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV, USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
 	{ HID_BLUETOOTH_DEVICE(USB_VENDOR_ID_ELECOM, USB_DEVICE_ID_ELECOM_BM084) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_EZKEY, USB_DEVICE_ID_BTC_8193) },
 	{ HID_USB_DEVICE(USB_VENDOR_ID_GAMERON, USB_DEVICE_ID_GAMERON_DUAL_PSX_ADAPTOR) },
diff --git a/drivers/hid/hid-egalax.c b/drivers/hid/hid-egalax.c
index f44bdc084cb2..8ca7f65cf2f8 100644
--- a/drivers/hid/hid-egalax.c
+++ b/drivers/hid/hid-egalax.c
@@ -159,6 +159,13 @@ static int egalax_event(struct hid_device *hid, struct hid_field *field,
 {
 	struct egalax_data *td = hid_get_drvdata(hid);
 
+	/* Note, eGalax has two product lines: the first is resistive and
+	 * uses a standard parallel multitouch protocol (product ID ==
+	 * 48xx).  The second is capacitive and uses an unusual "serial"
+	 * protocol with a different message for each multitouch finger
+	 * (product ID == 72xx).  We do not yet generate a correct event
+	 * sequence for the capacitive/serial protocol.
+	 */
 	if (hid->claimed & HID_CLAIMED_INPUT) {
 		struct input_dev *input = field->hidinput->input;
 
@@ -246,6 +253,8 @@ static void egalax_remove(struct hid_device *hdev)
 static const struct hid_device_id egalax_devices[] = {
 	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
 			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH) },
+	{ HID_USB_DEVICE(USB_VENDOR_ID_DWAV,
+			USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1) },
 	{ }
 };
 MODULE_DEVICE_TABLE(hid, egalax_devices);
diff --git a/drivers/hid/hid-ids.h b/drivers/hid/hid-ids.h
index d3fc13ae094d..85c6d13c9ffa 100644
--- a/drivers/hid/hid-ids.h
+++ b/drivers/hid/hid-ids.h
@@ -188,6 +188,7 @@
 #define USB_VENDOR_ID_DWAV		0x0eef
 #define USB_DEVICE_ID_EGALAX_TOUCHCONTROLLER	0x0001
 #define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH	0x480d
+#define USB_DEVICE_ID_DWAV_EGALAX_MULTITOUCH1	0x720c
 
 #define USB_VENDOR_ID_ELECOM		0x056e
 #define USB_DEVICE_ID_ELECOM_BM084	0x0061
diff --git a/drivers/hid/hid-picolcd.c b/drivers/hid/hid-picolcd.c
index 346f0e34987e..bc2e07740628 100644
--- a/drivers/hid/hid-picolcd.c
+++ b/drivers/hid/hid-picolcd.c
@@ -547,11 +547,11 @@ static void picolcd_fb_destroy(struct fb_info *info)
 	ref_cnt--;
 	mutex_lock(&info->lock);
 	(*ref_cnt)--;
-	may_release = !ref_cnt;
+	may_release = !*ref_cnt;
 	mutex_unlock(&info->lock);
 	if (may_release) {
-		framebuffer_release(info);
 		vfree((u8 *)info->fix.smem_start);
+		framebuffer_release(info);
 	}
 }
 
diff --git a/drivers/hid/usbhid/hiddev.c b/drivers/hid/usbhid/hiddev.c
index 254a003af048..0a29c51114aa 100644
--- a/drivers/hid/usbhid/hiddev.c
+++ b/drivers/hid/usbhid/hiddev.c
@@ -266,13 +266,15 @@ static int hiddev_open(struct inode *inode, struct file *file)
 {
 	struct hiddev_list *list;
 	struct usb_interface *intf;
+	struct hid_device *hid;
 	struct hiddev *hiddev;
 	int res;
 
 	intf = usb_find_interface(&hiddev_driver, iminor(inode));
 	if (!intf)
 		return -ENODEV;
-	hiddev = usb_get_intfdata(intf);
+	hid = usb_get_intfdata(intf);
+	hiddev = hid->hiddev;
 
 	if (!(list = kzalloc(sizeof(struct hiddev_list), GFP_KERNEL)))
 		return -ENOMEM;
@@ -587,7 +589,7 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	struct hiddev_list *list = file->private_data;
 	struct hiddev *hiddev = list->hiddev;
 	struct hid_device *hid = hiddev->hid;
-	struct usb_device *dev = hid_to_usb_dev(hid);
+	struct usb_device *dev;
 	struct hiddev_collection_info cinfo;
 	struct hiddev_report_info rinfo;
 	struct hiddev_field_info finfo;
@@ -601,9 +603,11 @@ static long hiddev_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
 	/* Called without BKL by compat methods so no BKL taken */
 
 	/* FIXME: Who or what stop this racing with a disconnect ?? */
-	if (!hiddev->exist)
+	if (!hiddev->exist || !hid)
 		return -EIO;
 
+	dev = hid_to_usb_dev(hid);
+
 	switch (cmd) {
 
 	case HIDIOCGVERSION:
@@ -888,7 +892,6 @@ int hiddev_connect(struct hid_device *hid, unsigned int force)
 	hid->hiddev = hiddev;
 	hiddev->hid = hid;
 	hiddev->exist = 1;
-	usb_set_intfdata(usbhid->intf, usbhid);
 	retval = usb_register_dev(usbhid->intf, &hiddev_class);
 	if (retval) {
 		err_hid("Not able to get a minor for this device.");
diff --git a/drivers/md/md.c b/drivers/md/md.c
index 11567c7999a2..c148b6302154 100644
--- a/drivers/md/md.c
+++ b/drivers/md/md.c
@@ -2136,16 +2136,6 @@ static void sync_sbs(mddev_t * mddev, int nospares)
 	 * with the rest of the array)
 	 */
 	mdk_rdev_t *rdev;
-
-	/* First make sure individual recovery_offsets are correct */
-	list_for_each_entry(rdev, &mddev->disks, same_set) {
-		if (rdev->raid_disk >= 0 &&
-		    mddev->delta_disks >= 0 &&
-		    !test_bit(In_sync, &rdev->flags) &&
-		    mddev->curr_resync_completed > rdev->recovery_offset)
-				rdev->recovery_offset = mddev->curr_resync_completed;
-
-	}	
 	list_for_each_entry(rdev, &mddev->disks, same_set) {
 		if (rdev->sb_events == mddev->events ||
 		    (nospares &&
@@ -2167,12 +2157,27 @@ static void md_update_sb(mddev_t * mddev, int force_change)
 	int sync_req;
 	int nospares = 0;
 
-	mddev->utime = get_seconds();
-	if (mddev->external)
-		return;
 repeat:
+	/* First make sure individual recovery_offsets are correct */
+	list_for_each_entry(rdev, &mddev->disks, same_set) {
+		if (rdev->raid_disk >= 0 &&
+		    mddev->delta_disks >= 0 &&
+		    !test_bit(In_sync, &rdev->flags) &&
+		    mddev->curr_resync_completed > rdev->recovery_offset)
+				rdev->recovery_offset = mddev->curr_resync_completed;
+
+	}	
+	if (mddev->external || !mddev->persistent) {
+		clear_bit(MD_CHANGE_DEVS, &mddev->flags);
+		clear_bit(MD_CHANGE_CLEAN, &mddev->flags);
+		wake_up(&mddev->sb_wait);
+		return;
+	}
+
 	spin_lock_irq(&mddev->write_lock);
 
+	mddev->utime = get_seconds();
+
 	set_bit(MD_CHANGE_PENDING, &mddev->flags);
 	if (test_and_clear_bit(MD_CHANGE_DEVS, &mddev->flags))
 		force_change = 1;
@@ -2221,19 +2226,6 @@ repeat:
 		MD_BUG();
 		mddev->events --;
 	}
-
-	/*
-	 * do not write anything to disk if using
-	 * nonpersistent superblocks
-	 */
-	if (!mddev->persistent) {
-		if (!mddev->external)
-			clear_bit(MD_CHANGE_PENDING, &mddev->flags);
-
-		spin_unlock_irq(&mddev->write_lock);
-		wake_up(&mddev->sb_wait);
-		return;
-	}
 	sync_sbs(mddev, nospares);
 	spin_unlock_irq(&mddev->write_lock);
 
diff --git a/drivers/md/raid1.c b/drivers/md/raid1.c
index 73cc74ffc26b..ad83a4dcadc3 100644
--- a/drivers/md/raid1.c
+++ b/drivers/md/raid1.c
@@ -787,8 +787,8 @@ static int make_request(mddev_t *mddev, struct bio * bio)
 	struct bio_list bl;
 	struct page **behind_pages = NULL;
 	const int rw = bio_data_dir(bio);
-	const bool do_sync = (bio->bi_rw & REQ_SYNC);
-	bool do_barriers;
+	const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
+	unsigned long do_barriers;
 	mdk_rdev_t *blocked_rdev;
 
 	/*
@@ -1120,6 +1120,8 @@ static int raid1_spare_active(mddev_t *mddev)
 {
 	int i;
 	conf_t *conf = mddev->private;
+	int count = 0;
+	unsigned long flags;
 
 	/*
 	 * Find all failed disks within the RAID1 configuration 
@@ -1131,15 +1133,16 @@ static int raid1_spare_active(mddev_t *mddev)
 		if (rdev
 		    && !test_bit(Faulty, &rdev->flags)
 		    && !test_and_set_bit(In_sync, &rdev->flags)) {
-			unsigned long flags;
-			spin_lock_irqsave(&conf->device_lock, flags);
-			mddev->degraded--;
-			spin_unlock_irqrestore(&conf->device_lock, flags);
+			count++;
+			sysfs_notify_dirent(rdev->sysfs_state);
 		}
 	}
+	spin_lock_irqsave(&conf->device_lock, flags);
+	mddev->degraded -= count;
+	spin_unlock_irqrestore(&conf->device_lock, flags);
 
 	print_conf(conf);
-	return 0;
+	return count;
 }
 
 
@@ -1640,7 +1643,7 @@ static void raid1d(mddev_t *mddev)
 			 * We already have a nr_pending reference on these rdevs.
 			 */
 			int i;
-			const bool do_sync = (r1_bio->master_bio->bi_rw & REQ_SYNC);
+			const unsigned long do_sync = (r1_bio->master_bio->bi_rw & REQ_SYNC);
 			clear_bit(R1BIO_BarrierRetry, &r1_bio->state);
 			clear_bit(R1BIO_Barrier, &r1_bio->state);
 			for (i=0; i < conf->raid_disks; i++)
@@ -1696,7 +1699,7 @@ static void raid1d(mddev_t *mddev)
 				       (unsigned long long)r1_bio->sector);
 				raid_end_bio_io(r1_bio);
 			} else {
-				const bool do_sync = r1_bio->master_bio->bi_rw & REQ_SYNC;
+				const unsigned long do_sync = r1_bio->master_bio->bi_rw & REQ_SYNC;
 				r1_bio->bios[r1_bio->read_disk] =
 					mddev->ro ? IO_BLOCKED : NULL;
 				r1_bio->read_disk = disk;
diff --git a/drivers/md/raid10.c b/drivers/md/raid10.c
index a88aeb5198c7..84718383124d 100644
--- a/drivers/md/raid10.c
+++ b/drivers/md/raid10.c
@@ -799,7 +799,7 @@ static int make_request(mddev_t *mddev, struct bio * bio)
 	int i;
 	int chunk_sects = conf->chunk_mask + 1;
 	const int rw = bio_data_dir(bio);
-	const bool do_sync = (bio->bi_rw & REQ_SYNC);
+	const unsigned long do_sync = (bio->bi_rw & REQ_SYNC);
 	struct bio_list bl;
 	unsigned long flags;
 	mdk_rdev_t *blocked_rdev;
@@ -1116,6 +1116,8 @@ static int raid10_spare_active(mddev_t *mddev)
 	int i;
 	conf_t *conf = mddev->private;
 	mirror_info_t *tmp;
+	int count = 0;
+	unsigned long flags;
 
 	/*
 	 * Find all non-in_sync disks within the RAID10 configuration
@@ -1126,15 +1128,16 @@ static int raid10_spare_active(mddev_t *mddev)
 		if (tmp->rdev
 		    && !test_bit(Faulty, &tmp->rdev->flags)
 		    && !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
-			unsigned long flags;
-			spin_lock_irqsave(&conf->device_lock, flags);
-			mddev->degraded--;
-			spin_unlock_irqrestore(&conf->device_lock, flags);
+			count++;
+			sysfs_notify_dirent(tmp->rdev->sysfs_state);
 		}
 	}
+	spin_lock_irqsave(&conf->device_lock, flags);
+	mddev->degraded -= count;
+	spin_unlock_irqrestore(&conf->device_lock, flags);
 
 	print_conf(conf);
-	return 0;
+	return count;
 }
 
 
@@ -1734,7 +1737,7 @@ static void raid10d(mddev_t *mddev)
 				raid_end_bio_io(r10_bio);
 				bio_put(bio);
 			} else {
-				const bool do_sync = (r10_bio->master_bio->bi_rw & REQ_SYNC);
+				const unsigned long do_sync = (r10_bio->master_bio->bi_rw & REQ_SYNC);
 				bio_put(bio);
 				rdev = conf->mirrors[mirror].rdev;
 				if (printk_ratelimit())
diff --git a/drivers/md/raid5.c b/drivers/md/raid5.c
index 866d4b5a144c..69b0a169e43d 100644
--- a/drivers/md/raid5.c
+++ b/drivers/md/raid5.c
@@ -5330,6 +5330,8 @@ static int raid5_spare_active(mddev_t *mddev)
 	int i;
 	raid5_conf_t *conf = mddev->private;
 	struct disk_info *tmp;
+	int count = 0;
+	unsigned long flags;
 
 	for (i = 0; i < conf->raid_disks; i++) {
 		tmp = conf->disks + i;
@@ -5337,14 +5339,15 @@ static int raid5_spare_active(mddev_t *mddev)
 		    && tmp->rdev->recovery_offset == MaxSector
 		    && !test_bit(Faulty, &tmp->rdev->flags)
 		    && !test_and_set_bit(In_sync, &tmp->rdev->flags)) {
-			unsigned long flags;
-			spin_lock_irqsave(&conf->device_lock, flags);
-			mddev->degraded--;
-			spin_unlock_irqrestore(&conf->device_lock, flags);
+			count++;
+			sysfs_notify_dirent(tmp->rdev->sysfs_state);
 		}
 	}
+	spin_lock_irqsave(&conf->device_lock, flags);
+	mddev->degraded -= count;
+	spin_unlock_irqrestore(&conf->device_lock, flags);
 	print_raid5_conf(conf);
-	return 0;
+	return count;
 }
 
 static int raid5_remove_disk(mddev_t *mddev, int number)
diff --git a/drivers/mmc/core/host.c b/drivers/mmc/core/host.c
index 0efe631e50ca..d80cfdc8edd2 100644
--- a/drivers/mmc/core/host.c
+++ b/drivers/mmc/core/host.c
@@ -86,7 +86,9 @@ struct mmc_host *mmc_alloc_host(int extra, struct device *dev)
 	init_waitqueue_head(&host->wq);
 	INIT_DELAYED_WORK(&host->detect, mmc_rescan);
 	INIT_DELAYED_WORK_DEFERRABLE(&host->disable, mmc_host_deeper_disable);
+#ifdef CONFIG_PM
 	host->pm_notify.notifier_call = mmc_pm_notify;
+#endif
 
 	/*
 	 * By default, hosts do not support SGIO or large requests.
diff --git a/drivers/mtd/maps/physmap_of.c b/drivers/mtd/maps/physmap_of.c
index 00af55d7afba..fe63f6bd663c 100644
--- a/drivers/mtd/maps/physmap_of.c
+++ b/drivers/mtd/maps/physmap_of.c
@@ -22,6 +22,7 @@
 #include <linux/mtd/partitions.h>
 #include <linux/mtd/concat.h>
 #include <linux/of.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/slab.h>
 
diff --git a/drivers/net/wireless/ath/ath5k/base.c b/drivers/net/wireless/ath/ath5k/base.c
index 0d5de2574dd1..373dcfec689c 100644
--- a/drivers/net/wireless/ath/ath5k/base.c
+++ b/drivers/net/wireless/ath/ath5k/base.c
@@ -48,6 +48,7 @@
 #include <linux/netdevice.h>
 #include <linux/cache.h>
 #include <linux/pci.h>
+#include <linux/pci-aspm.h>
 #include <linux/ethtool.h>
 #include <linux/uaccess.h>
 #include <linux/slab.h>
@@ -476,6 +477,26 @@ ath5k_pci_probe(struct pci_dev *pdev,
 	int ret;
 	u8 csz;
 
+	/*
+	 * L0s needs to be disabled on all ath5k cards.
+	 *
+	 * For distributions shipping with CONFIG_PCIEASPM (this will be enabled
+	 * by default in the future in 2.6.36) this will also mean both L1 and
+	 * L0s will be disabled when a pre 1.1 PCIe device is detected. We do
+	 * know L1 works correctly even for all ath5k pre 1.1 PCIe devices
+	 * though but cannot currently undue the effect of a blacklist, for
+	 * details you can read pcie_aspm_sanity_check() and see how it adjusts
+	 * the device link capability.
+	 *
+	 * It may be possible in the future to implement some PCI API to allow
+	 * drivers to override blacklists for pre 1.1 PCIe but for now it is
+	 * best to accept that both L0s and L1 will be disabled completely for
+	 * distributions shipping with CONFIG_PCIEASPM rather than having this
+	 * issue present. Motivation for adding this new API will be to help
+	 * with power consumption for some of these devices.
+	 */
+	pci_disable_link_state(pdev, PCIE_LINK_STATE_L0S);
+
 	ret = pci_enable_device(pdev);
 	if (ret) {
 		dev_err(&pdev->dev, "can't enable device\n");
diff --git a/drivers/net/wireless/ath/ath9k/eeprom.h b/drivers/net/wireless/ath/ath9k/eeprom.h
index 8750c558c221..7f48df1e2903 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom.h
+++ b/drivers/net/wireless/ath/ath9k/eeprom.h
@@ -191,6 +191,7 @@
 #define AR9287_EEP_NO_BACK_VER       AR9287_EEP_MINOR_VER_1
 
 #define AR9287_EEP_START_LOC            128
+#define AR9287_HTC_EEP_START_LOC        256
 #define AR9287_NUM_2G_CAL_PIERS         3
 #define AR9287_NUM_2G_CCK_TARGET_POWERS 3
 #define AR9287_NUM_2G_20_TARGET_POWERS  3
diff --git a/drivers/net/wireless/ath/ath9k/eeprom_9287.c b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
index 4a52cf03808b..dff2da777312 100644
--- a/drivers/net/wireless/ath/ath9k/eeprom_9287.c
+++ b/drivers/net/wireless/ath/ath9k/eeprom_9287.c
@@ -34,9 +34,14 @@ static bool ath9k_hw_ar9287_fill_eeprom(struct ath_hw *ah)
 	struct ar9287_eeprom *eep = &ah->eeprom.map9287;
 	struct ath_common *common = ath9k_hw_common(ah);
 	u16 *eep_data;
-	int addr, eep_start_loc = AR9287_EEP_START_LOC;
+	int addr, eep_start_loc;
 	eep_data = (u16 *)eep;
 
+	if (ah->hw_version.devid == 0x7015)
+		eep_start_loc = AR9287_HTC_EEP_START_LOC;
+	else
+		eep_start_loc = AR9287_EEP_START_LOC;
+
 	if (!ath9k_hw_use_flash(ah)) {
 		ath_print(common, ATH_DBG_EEPROM,
 			  "Reading from EEPROM, not flash\n");
diff --git a/drivers/net/wireless/ath/ath9k/hif_usb.c b/drivers/net/wireless/ath/ath9k/hif_usb.c
index 61c1bee3f26a..17e7a9a367e7 100644
--- a/drivers/net/wireless/ath/ath9k/hif_usb.c
+++ b/drivers/net/wireless/ath/ath9k/hif_usb.c
@@ -799,7 +799,7 @@ static int ath9k_hif_usb_download_fw(struct hif_device_usb *hif_dev)
 	}
 	kfree(buf);
 
-	if (hif_dev->device_id == 0x7010)
+	if ((hif_dev->device_id == 0x7010) || (hif_dev->device_id == 0x7015))
 		firm_offset = AR7010_FIRMWARE_TEXT;
 	else
 		firm_offset = AR9271_FIRMWARE_TEXT;
@@ -901,6 +901,7 @@ static int ath9k_hif_usb_probe(struct usb_interface *interface,
 
 	switch(hif_dev->device_id) {
 	case 0x7010:
+	case 0x7015:
 	case 0x9018:
 		if (le16_to_cpu(udev->descriptor.bcdDevice) == 0x0202)
 			hif_dev->fw_name = FIRMWARE_AR7010_1_1;
@@ -912,11 +913,6 @@ static int ath9k_hif_usb_probe(struct usb_interface *interface,
 		break;
 	}
 
-	if (!hif_dev->fw_name) {
-		dev_err(&udev->dev, "Can't determine firmware !\n");
-		goto err_htc_hw_alloc;
-	}
-
 	ret = ath9k_hif_usb_dev_init(hif_dev);
 	if (ret) {
 		ret = -EINVAL;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_init.c b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
index 148b43317fdb..2d4279191d7a 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_init.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_init.c
@@ -245,6 +245,7 @@ static int ath9k_init_htc_services(struct ath9k_htc_priv *priv, u16 devid)
 
 	switch(devid) {
 	case 0x7010:
+	case 0x7015:
 	case 0x9018:
 		priv->htc->credits = 45;
 		break;
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_main.c b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
index ebed9d1691a5..7d09b4b17bbd 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_main.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_main.c
@@ -366,7 +366,8 @@ static void ath9k_htc_setup_rate(struct ath9k_htc_priv *priv,
 		caps = WLAN_RC_HT_FLAG;
 		if (sta->ht_cap.mcs.rx_mask[1])
 			caps |= WLAN_RC_DS_FLAG;
-		if (sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40)
+		if ((sta->ht_cap.cap & IEEE80211_HT_CAP_SUP_WIDTH_20_40) &&
+		     (conf_is_ht40(&priv->hw->conf)))
 			caps |= WLAN_RC_40_FLAG;
 		if (conf_is_ht40(&priv->hw->conf) &&
 		    (sta->ht_cap.cap & IEEE80211_HT_CAP_SGI_40))
diff --git a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
index bd0b4acc3ece..2a6e45a293a9 100644
--- a/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
+++ b/drivers/net/wireless/ath/ath9k/htc_drv_txrx.c
@@ -78,18 +78,23 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
 	struct ieee80211_tx_info *tx_info = IEEE80211_SKB_CB(skb);
 	struct ieee80211_sta *sta = tx_info->control.sta;
 	struct ath9k_htc_sta *ista;
-	struct ath9k_htc_vif *avp;
 	struct ath9k_htc_tx_ctl tx_ctl;
 	enum htc_endpoint_id epid;
 	u16 qnum;
 	__le16 fc;
 	u8 *tx_fhdr;
-	u8 sta_idx;
+	u8 sta_idx, vif_idx;
 
 	hdr = (struct ieee80211_hdr *) skb->data;
 	fc = hdr->frame_control;
 
-	avp = (struct ath9k_htc_vif *) tx_info->control.vif->drv_priv;
+	if (tx_info->control.vif &&
+			(struct ath9k_htc_vif *) tx_info->control.vif->drv_priv)
+		vif_idx = ((struct ath9k_htc_vif *)
+				tx_info->control.vif->drv_priv)->index;
+	else
+		vif_idx = priv->nvifs;
+
 	if (sta) {
 		ista = (struct ath9k_htc_sta *) sta->drv_priv;
 		sta_idx = ista->index;
@@ -106,7 +111,7 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
 		memset(&tx_hdr, 0, sizeof(struct tx_frame_hdr));
 
 		tx_hdr.node_idx = sta_idx;
-		tx_hdr.vif_idx = avp->index;
+		tx_hdr.vif_idx = vif_idx;
 
 		if (tx_info->flags & IEEE80211_TX_CTL_AMPDU) {
 			tx_ctl.type = ATH9K_HTC_AMPDU;
@@ -169,7 +174,7 @@ int ath9k_htc_tx_start(struct ath9k_htc_priv *priv, struct sk_buff *skb)
 		tx_ctl.type = ATH9K_HTC_NORMAL;
 
 		mgmt_hdr.node_idx = sta_idx;
-		mgmt_hdr.vif_idx = avp->index;
+		mgmt_hdr.vif_idx = vif_idx;
 		mgmt_hdr.tidno = 0;
 		mgmt_hdr.flags = 0;
 
diff --git a/drivers/net/wireless/ath/ath9k/reg.h b/drivers/net/wireless/ath/ath9k/reg.h
index 633e3d949ec0..d01c4adab8d6 100644
--- a/drivers/net/wireless/ath/ath9k/reg.h
+++ b/drivers/net/wireless/ath/ath9k/reg.h
@@ -899,6 +899,7 @@
 
 #define AR_DEVID_7010(_ah) \
 	(((_ah)->hw_version.devid == 0x7010) || \
+	 ((_ah)->hw_version.devid == 0x7015) || \
 	 ((_ah)->hw_version.devid == 0x9018))
 
 #define AR_RADIO_SREV_MAJOR                   0xf0
diff --git a/drivers/net/wireless/ipw2x00/ipw2100.c b/drivers/net/wireless/ipw2x00/ipw2100.c
index 16bbfa3189a5..1189dbb6e2a6 100644
--- a/drivers/net/wireless/ipw2x00/ipw2100.c
+++ b/drivers/net/wireless/ipw2x00/ipw2100.c
@@ -6665,12 +6665,13 @@ static int __init ipw2100_init(void)
 	printk(KERN_INFO DRV_NAME ": %s, %s\n", DRV_DESCRIPTION, DRV_VERSION);
 	printk(KERN_INFO DRV_NAME ": %s\n", DRV_COPYRIGHT);
 
+	pm_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
+			   PM_QOS_DEFAULT_VALUE);
+
 	ret = pci_register_driver(&ipw2100_pci_driver);
 	if (ret)
 		goto out;
 
-	pm_qos_add_request(&ipw2100_pm_qos_req, PM_QOS_CPU_DMA_LATENCY,
-			   PM_QOS_DEFAULT_VALUE);
 #ifdef CONFIG_IPW2100_DEBUG
 	ipw2100_debug_level = debug;
 	ret = driver_create_file(&ipw2100_pci_driver.driver,
diff --git a/drivers/net/wireless/wl12xx/wl1251_cmd.c b/drivers/net/wireless/wl12xx/wl1251_cmd.c
index a37b30cef489..ce3722f4c3e3 100644
--- a/drivers/net/wireless/wl12xx/wl1251_cmd.c
+++ b/drivers/net/wireless/wl12xx/wl1251_cmd.c
@@ -484,7 +484,7 @@ int wl1251_cmd_trigger_scan_to(struct wl1251 *wl, u32 timeout)
 
 	cmd->timeout = timeout;
 
-	ret = wl1251_cmd_send(wl, CMD_SCAN, cmd, sizeof(*cmd));
+	ret = wl1251_cmd_send(wl, CMD_TRIGGER_SCAN_TO, cmd, sizeof(*cmd));
 	if (ret < 0) {
 		wl1251_error("cmd trigger scan to failed: %d", ret);
 		goto out;
diff --git a/drivers/platform/x86/asus_acpi.c b/drivers/platform/x86/asus_acpi.c
index e058c2ba2a15..ca05aefd03bf 100644
--- a/drivers/platform/x86/asus_acpi.c
+++ b/drivers/platform/x86/asus_acpi.c
@@ -938,10 +938,11 @@ static int set_brightness(int value)
 	/* SPLV laptop */
 	if (hotk->methods->brightness_set) {
 		if (!write_acpi_int(hotk->handle, hotk->methods->brightness_set,
-				    value, NULL))
+				    value, NULL)) {
 			printk(KERN_WARNING
 			       "Asus ACPI: Error changing brightness\n");
 			ret = -EIO;
+		}
 		goto out;
 	}
 
@@ -953,10 +954,11 @@ static int set_brightness(int value)
 					      hotk->methods->brightness_down,
 					      NULL, NULL);
 		(value > 0) ? value-- : value++;
-		if (ACPI_FAILURE(status))
+		if (ACPI_FAILURE(status)) {
 			printk(KERN_WARNING
 			       "Asus ACPI: Error changing brightness\n");
 			ret = -EIO;
+		}
 	}
 out:
 	return ret;
diff --git a/drivers/platform/x86/compal-laptop.c b/drivers/platform/x86/compal-laptop.c
index d071ce056322..097083cac413 100644
--- a/drivers/platform/x86/compal-laptop.c
+++ b/drivers/platform/x86/compal-laptop.c
@@ -841,6 +841,14 @@ static struct dmi_system_id __initdata compal_dmi_table[] = {
 		.callback = dmi_check_cb
 	},
 	{
+		.ident = "Dell Mini 1012",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
+		},
+		.callback = dmi_check_cb
+	},
+	{
 		.ident = "Dell Inspiron 11z",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
@@ -1092,5 +1100,6 @@ MODULE_ALIAS("dmi:*:rnJHL90:rvrREFERENCE:*");
 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron910:*");
 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1010:*");
 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1011:*");
+MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1012:*");
 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1110:*");
 MODULE_ALIAS("dmi:*:svnDellInc.:pnInspiron1210:*");
diff --git a/drivers/platform/x86/dell-laptop.c b/drivers/platform/x86/dell-laptop.c
index b41ed5cab3e7..4413975912e0 100644
--- a/drivers/platform/x86/dell-laptop.c
+++ b/drivers/platform/x86/dell-laptop.c
@@ -122,6 +122,13 @@ static struct dmi_system_id __devinitdata dell_blacklist[] = {
 		},
 	},
 	{
+		.ident = "Dell Mini 1012",
+		.matches = {
+			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
+			DMI_MATCH(DMI_PRODUCT_NAME, "Inspiron 1012"),
+		},
+	},
+	{
 		.ident = "Dell Inspiron 11z",
 		.matches = {
 			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
diff --git a/drivers/platform/x86/intel_ips.c b/drivers/platform/x86/intel_ips.c
index afe82e50dfea..9024480a8228 100644
--- a/drivers/platform/x86/intel_ips.c
+++ b/drivers/platform/x86/intel_ips.c
@@ -1342,8 +1342,10 @@ static struct ips_mcp_limits *ips_detect_cpu(struct ips_driver *ips)
 		limits = &ips_lv_limits;
 	else if (strstr(boot_cpu_data.x86_model_id, "CPU       U"))
 		limits = &ips_ulv_limits;
-	else
+	else {
 		dev_info(&ips->dev->dev, "No CPUID match found.\n");
+		goto out;
+	}
 
 	rdmsrl(TURBO_POWER_CURRENT_LIMIT, turbo_power);
 	tdp = turbo_power & TURBO_TDP_MASK;
@@ -1432,6 +1434,12 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
 
 	spin_lock_init(&ips->turbo_status_lock);
 
+	ret = pci_enable_device(dev);
+	if (ret) {
+		dev_err(&dev->dev, "can't enable PCI device, aborting\n");
+		goto error_free;
+	}
+
 	if (!pci_resource_start(dev, 0)) {
 		dev_err(&dev->dev, "TBAR not assigned, aborting\n");
 		ret = -ENXIO;
@@ -1444,11 +1452,6 @@ static int ips_probe(struct pci_dev *dev, const struct pci_device_id *id)
 		goto error_free;
 	}
 
-	ret = pci_enable_device(dev);
-	if (ret) {
-		dev_err(&dev->dev, "can't enable PCI device, aborting\n");
-		goto error_free;
-	}
 
 	ips->regmap = ioremap(pci_resource_start(dev, 0),
 			      pci_resource_len(dev, 0));
diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/thinkpad_acpi.c
index 5d6119bed00c..e35ed128bdef 100644
--- a/drivers/platform/x86/thinkpad_acpi.c
+++ b/drivers/platform/x86/thinkpad_acpi.c
@@ -1911,6 +1911,17 @@ enum {	/* hot key scan codes (derived from ACPI DSDT) */
 	TP_ACPI_HOTKEYSCAN_VOLUMEDOWN,
 	TP_ACPI_HOTKEYSCAN_MUTE,
 	TP_ACPI_HOTKEYSCAN_THINKPAD,
+	TP_ACPI_HOTKEYSCAN_UNK1,
+	TP_ACPI_HOTKEYSCAN_UNK2,
+	TP_ACPI_HOTKEYSCAN_UNK3,
+	TP_ACPI_HOTKEYSCAN_UNK4,
+	TP_ACPI_HOTKEYSCAN_UNK5,
+	TP_ACPI_HOTKEYSCAN_UNK6,
+	TP_ACPI_HOTKEYSCAN_UNK7,
+	TP_ACPI_HOTKEYSCAN_UNK8,
+
+	/* Hotkey keymap size */
+	TPACPI_HOTKEY_MAP_LEN
 };
 
 enum {	/* Keys/events available through NVRAM polling */
@@ -3082,6 +3093,8 @@ static const struct tpacpi_quirk tpacpi_hotkey_qtable[] __initconst = {
 	TPACPI_Q_IBM('1', 'D', TPACPI_HK_Q_INIMASK), /* X22, X23, X24 */
 };
 
+typedef u16 tpacpi_keymap_t[TPACPI_HOTKEY_MAP_LEN];
+
 static int __init hotkey_init(struct ibm_init_struct *iibm)
 {
 	/* Requirements for changing the default keymaps:
@@ -3113,9 +3126,17 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 	 * If the above is too much to ask, don't change the keymap.
 	 * Ask the thinkpad-acpi maintainer to do it, instead.
 	 */
-	static u16 ibm_keycode_map[] __initdata = {
+
+	enum keymap_index {
+		TPACPI_KEYMAP_IBM_GENERIC = 0,
+		TPACPI_KEYMAP_LENOVO_GENERIC,
+	};
+
+	static const tpacpi_keymap_t tpacpi_keymaps[] __initconst = {
+	/* Generic keymap for IBM ThinkPads */
+	[TPACPI_KEYMAP_IBM_GENERIC] = {
 		/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
-		KEY_FN_F1,	KEY_FN_F2,	KEY_COFFEE,	KEY_SLEEP,
+		KEY_FN_F1,	KEY_BATTERY,	KEY_COFFEE,	KEY_SLEEP,
 		KEY_WLAN,	KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
 		KEY_FN_F9,	KEY_FN_F10,	KEY_FN_F11,	KEY_SUSPEND,
 
@@ -3146,11 +3167,13 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 		/* (assignments unknown, please report if found) */
 		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
 		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
-	};
-	static u16 lenovo_keycode_map[] __initdata = {
+		},
+
+	/* Generic keymap for Lenovo ThinkPads */
+	[TPACPI_KEYMAP_LENOVO_GENERIC] = {
 		/* Scan Codes 0x00 to 0x0B: ACPI HKEY FN+F1..F12 */
 		KEY_FN_F1,	KEY_COFFEE,	KEY_BATTERY,	KEY_SLEEP,
-		KEY_WLAN,	KEY_FN_F6, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
+		KEY_WLAN,	KEY_CAMERA, KEY_SWITCHVIDEOMODE, KEY_FN_F8,
 		KEY_FN_F9,	KEY_FN_F10,	KEY_FN_F11,	KEY_SUSPEND,
 
 		/* Scan codes 0x0C to 0x1F: Other ACPI HKEY hot keys */
@@ -3189,11 +3212,25 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 		/* (assignments unknown, please report if found) */
 		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
 		KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN, KEY_UNKNOWN,
+		},
+	};
+
+	static const struct tpacpi_quirk tpacpi_keymap_qtable[] __initconst = {
+		/* Generic maps (fallback) */
+		{
+		  .vendor = PCI_VENDOR_ID_IBM,
+		  .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
+		  .quirks = TPACPI_KEYMAP_IBM_GENERIC,
+		},
+		{
+		  .vendor = PCI_VENDOR_ID_LENOVO,
+		  .bios = TPACPI_MATCH_ANY, .ec = TPACPI_MATCH_ANY,
+		  .quirks = TPACPI_KEYMAP_LENOVO_GENERIC,
+		},
 	};
 
-#define TPACPI_HOTKEY_MAP_LEN		ARRAY_SIZE(ibm_keycode_map)
-#define TPACPI_HOTKEY_MAP_SIZE		sizeof(ibm_keycode_map)
-#define TPACPI_HOTKEY_MAP_TYPESIZE	sizeof(ibm_keycode_map[0])
+#define TPACPI_HOTKEY_MAP_SIZE		sizeof(tpacpi_keymap_t)
+#define TPACPI_HOTKEY_MAP_TYPESIZE	sizeof(tpacpi_keymap_t[0])
 
 	int res, i;
 	int status;
@@ -3202,6 +3239,7 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 	bool tabletsw_state = false;
 
 	unsigned long quirks;
+	unsigned long keymap_id;
 
 	vdbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
 			"initializing hotkey subdriver\n");
@@ -3342,7 +3380,6 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 		goto err_exit;
 
 	/* Set up key map */
-
 	hotkey_keycode_map = kmalloc(TPACPI_HOTKEY_MAP_SIZE,
 					GFP_KERNEL);
 	if (!hotkey_keycode_map) {
@@ -3352,17 +3389,14 @@ static int __init hotkey_init(struct ibm_init_struct *iibm)
 		goto err_exit;
 	}
 
-	if (tpacpi_is_lenovo()) {
-		dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
-			   "using Lenovo default hot key map\n");
-		memcpy(hotkey_keycode_map, &lenovo_keycode_map,
-			TPACPI_HOTKEY_MAP_SIZE);
-	} else {
-		dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
-			   "using IBM default hot key map\n");
-		memcpy(hotkey_keycode_map, &ibm_keycode_map,
-			TPACPI_HOTKEY_MAP_SIZE);
-	}
+	keymap_id = tpacpi_check_quirks(tpacpi_keymap_qtable,
+					ARRAY_SIZE(tpacpi_keymap_qtable));
+	BUG_ON(keymap_id >= ARRAY_SIZE(tpacpi_keymaps));
+	dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_HKEY,
+		   "using keymap number %lu\n", keymap_id);
+
+	memcpy(hotkey_keycode_map, &tpacpi_keymaps[keymap_id],
+		TPACPI_HOTKEY_MAP_SIZE);
 
 	input_set_capability(tpacpi_inputdev, EV_MSC, MSC_SCAN);
 	tpacpi_inputdev->keycodesize = TPACPI_HOTKEY_MAP_TYPESIZE;
@@ -3469,7 +3503,8 @@ static bool hotkey_notify_hotkey(const u32 hkey,
 	*send_acpi_ev = true;
 	*ignore_acpi_ev = false;
 
-	if (scancode > 0 && scancode < 0x21) {
+	/* HKEY event 0x1001 is scancode 0x00 */
+	if (scancode > 0 && scancode <= TPACPI_HOTKEY_MAP_LEN) {
 		scancode--;
 		if (!(hotkey_source_mask & (1 << scancode))) {
 			tpacpi_input_send_key_masked(scancode);
@@ -6080,13 +6115,18 @@ static struct backlight_ops ibm_backlight_data = {
 
 /* --------------------------------------------------------------------- */
 
+/*
+ * Call _BCL method of video device.  On some ThinkPads this will
+ * switch the firmware to the ACPI brightness control mode.
+ */
+
 static int __init tpacpi_query_bcl_levels(acpi_handle handle)
 {
 	struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
 	union acpi_object *obj;
 	int rc;
 
-	if (ACPI_SUCCESS(acpi_evaluate_object(handle, NULL, NULL, &buffer))) {
+	if (ACPI_SUCCESS(acpi_evaluate_object(handle, "_BCL", NULL, &buffer))) {
 		obj = (union acpi_object *)buffer.pointer;
 		if (!obj || (obj->type != ACPI_TYPE_PACKAGE)) {
 			printk(TPACPI_ERR "Unknown _BCL data, "
@@ -6103,55 +6143,22 @@ static int __init tpacpi_query_bcl_levels(acpi_handle handle)
 	return rc;
 }
 
-static acpi_status __init tpacpi_acpi_walk_find_bcl(acpi_handle handle,
-					u32 lvl, void *context, void **rv)
-{
-	char name[ACPI_PATH_SEGMENT_LENGTH];
-	struct acpi_buffer buffer = { sizeof(name), &name };
-
-	if (ACPI_SUCCESS(acpi_get_name(handle, ACPI_SINGLE_NAME, &buffer)) &&
-	    !strncmp("_BCL", name, sizeof(name) - 1)) {
-		BUG_ON(!rv || !*rv);
-		**(int **)rv = tpacpi_query_bcl_levels(handle);
-		return AE_CTRL_TERMINATE;
-	} else {
-		return AE_OK;
-	}
-}
 
 /*
  * Returns 0 (no ACPI _BCL or _BCL invalid), or size of brightness map
  */
 static unsigned int __init tpacpi_check_std_acpi_brightness_support(void)
 {
-	int status;
+	acpi_handle video_device;
 	int bcl_levels = 0;
-	void *bcl_ptr = &bcl_levels;
-
-	if (!vid_handle)
-		TPACPI_ACPIHANDLE_INIT(vid);
-
-	if (!vid_handle)
-		return 0;
-
-	/*
-	 * Search for a _BCL method, and execute it.  This is safe on all
-	 * ThinkPads, and as a side-effect, _BCL will place a Lenovo Vista
-	 * BIOS in ACPI backlight control mode.  We do NOT have to care
-	 * about calling the _BCL method in an enabled video device, any
-	 * will do for our purposes.
-	 */
 
-	status = acpi_walk_namespace(ACPI_TYPE_METHOD, vid_handle, 3,
-				     tpacpi_acpi_walk_find_bcl, NULL, NULL,
-				     &bcl_ptr);
+	tpacpi_acpi_handle_locate("video", ACPI_VIDEO_HID, &video_device);
+	if (video_device)
+		bcl_levels = tpacpi_query_bcl_levels(video_device);
 
-	if (ACPI_SUCCESS(status) && bcl_levels > 2) {
-		tp_features.bright_acpimode = 1;
-		return bcl_levels - 2;
-	}
+	tp_features.bright_acpimode = (bcl_levels > 0);
 
-	return 0;
+	return (bcl_levels > 2) ? (bcl_levels - 2) : 0;
 }
 
 /*
@@ -6244,28 +6251,6 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
 	if (tp_features.bright_unkfw)
 		return 1;
 
-	if (tp_features.bright_acpimode) {
-		if (acpi_video_backlight_support()) {
-			if (brightness_enable > 1) {
-				printk(TPACPI_NOTICE
-				       "Standard ACPI backlight interface "
-				       "available, not loading native one.\n");
-				return 1;
-			} else if (brightness_enable == 1) {
-				printk(TPACPI_NOTICE
-				       "Backlight control force enabled, even if standard "
-				       "ACPI backlight interface is available\n");
-			}
-		} else {
-			if (brightness_enable > 1) {
-				printk(TPACPI_NOTICE
-				       "Standard ACPI backlight interface not "
-				       "available, thinkpad_acpi native "
-				       "brightness control enabled\n");
-			}
-		}
-	}
-
 	if (!brightness_enable) {
 		dbg_printk(TPACPI_DBG_INIT | TPACPI_DBG_BRGHT,
 			   "brightness support disabled by "
@@ -6273,6 +6258,26 @@ static int __init brightness_init(struct ibm_init_struct *iibm)
 		return 1;
 	}
 
+	if (acpi_video_backlight_support()) {
+		if (brightness_enable > 1) {
+			printk(TPACPI_INFO
+			       "Standard ACPI backlight interface "
+			       "available, not loading native one.\n");
+			return 1;
+		} else if (brightness_enable == 1) {
+			printk(TPACPI_WARN
+				"Cannot enable backlight brightness support, "
+				"ACPI is already handling it.  Refer to the "
+				"acpi_backlight kernel parameter\n");
+			return 1;
+		}
+	} else if (tp_features.bright_acpimode && brightness_enable > 1) {
+		printk(TPACPI_NOTICE
+			"Standard ACPI backlight interface not "
+			"available, thinkpad_acpi native "
+			"brightness control enabled\n");
+	}
+
 	/*
 	 * Check for module parameter bogosity, note that we
 	 * init brightness_mode to TPACPI_BRGHT_MODE_MAX in order to be
diff --git a/drivers/scsi/arcmsr/arcmsr_hba.c b/drivers/scsi/arcmsr/arcmsr_hba.c
index 95a895dd4f13..c8dc392edd57 100644
--- a/drivers/scsi/arcmsr/arcmsr_hba.c
+++ b/drivers/scsi/arcmsr/arcmsr_hba.c
@@ -56,6 +56,7 @@
 #include <linux/delay.h>
 #include <linux/dma-mapping.h>
 #include <linux/timer.h>
+#include <linux/slab.h>
 #include <linux/pci.h>
 #include <linux/aer.h>
 #include <asm/dma.h>
diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
index 659a695bdad6..2af8fd113123 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -14,11 +14,10 @@
 #include <linux/slab.h>
 #include <linux/serial_core.h>
 #include <linux/serial_8250.h>
+#include <linux/of_address.h>
 #include <linux/of_platform.h>
 #include <linux/nwpserial.h>
 
-#include <asm/prom.h>
-
 struct of_serial_info {
 	int type;
 	int line;
diff --git a/drivers/serial/suncore.c b/drivers/serial/suncore.c
index 544f2e25d0e5..6381a0282ee7 100644
--- a/drivers/serial/suncore.c
+++ b/drivers/serial/suncore.c
@@ -55,7 +55,12 @@ EXPORT_SYMBOL(sunserial_unregister_minors);
 int sunserial_console_match(struct console *con, struct device_node *dp,
 			    struct uart_driver *drv, int line, bool ignore_line)
 {
-	if (!con || of_console_device != dp)
+	if (!con)
+		return 0;
+
+	drv->cons = con;
+
+	if (of_console_device != dp)
 		return 0;
 
 	if (!ignore_line) {
@@ -69,12 +74,10 @@ int sunserial_console_match(struct console *con, struct device_node *dp,
 			return 0;
 	}
 
-	con->index = line;
-	drv->cons = con;
-
-	if (!console_set_on_cmdline)
+	if (!console_set_on_cmdline) {
+		con->index = line;
 		add_preferred_console(con->name, line, NULL);
-
+	}
 	return 1;
 }
 EXPORT_SYMBOL(sunserial_console_match);
diff --git a/drivers/spi/coldfire_qspi.c b/drivers/spi/coldfire_qspi.c
index 59be3efe0636..052b3c7fa6a0 100644
--- a/drivers/spi/coldfire_qspi.c
+++ b/drivers/spi/coldfire_qspi.c
@@ -24,6 +24,7 @@
 #include <linux/interrupt.h>
 #include <linux/errno.h>
 #include <linux/platform_device.h>
+#include <linux/sched.h>
 #include <linux/workqueue.h>
 #include <linux/delay.h>
 #include <linux/io.h>
diff --git a/drivers/staging/pohmelfs/path_entry.c b/drivers/staging/pohmelfs/path_entry.c
index cdc4dd50d638..8ec83d2dffb7 100644
--- a/drivers/staging/pohmelfs/path_entry.c
+++ b/drivers/staging/pohmelfs/path_entry.c
@@ -44,9 +44,9 @@ int pohmelfs_construct_path_string(struct pohmelfs_inode *pi, void *data, int le
 		return -ENOENT;
 	}
 
-	read_lock(&current->fs->lock);
+	spin_lock(&current->fs->lock);
 	path.mnt = mntget(current->fs->root.mnt);
-	read_unlock(&current->fs->lock);
+	spin_unlock(&current->fs->lock);
 
 	path.dentry = d;
 
@@ -91,9 +91,9 @@ int pohmelfs_path_length(struct pohmelfs_inode *pi)
 		return -ENOENT;
 	}
 
-	read_lock(&current->fs->lock);
+	spin_lock(&current->fs->lock);
 	root = dget(current->fs->root.dentry);
-	read_unlock(&current->fs->lock);
+	spin_unlock(&current->fs->lock);
 
 	spin_lock(&dcache_lock);
 
diff --git a/drivers/video/amba-clcd.c b/drivers/video/amba-clcd.c
index afe21e6eb544..1c2c68356ea7 100644
--- a/drivers/video/amba-clcd.c
+++ b/drivers/video/amba-clcd.c
@@ -80,7 +80,10 @@ static void clcdfb_disable(struct clcd_fb *fb)
 	/*
 	 * Disable CLCD clock source.
 	 */
-	clk_disable(fb->clk);
+	if (fb->clk_enabled) {
+		fb->clk_enabled = false;
+		clk_disable(fb->clk);
+	}
 }
 
 static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
@@ -88,7 +91,10 @@ static void clcdfb_enable(struct clcd_fb *fb, u32 cntl)
 	/*
 	 * Enable the CLCD clock source.
 	 */
-	clk_enable(fb->clk);
+	if (!fb->clk_enabled) {
+		fb->clk_enabled = true;
+		clk_enable(fb->clk);
+	}
 
 	/*
 	 * Bring up by first enabling..