Merge commit 'v2.6.28-rc9' into x86/apic

40 files changed, 308 insertions, 102 deletions

diff --git a/include/linux/acpi.h b/include/linux/acpi.h
index fd6a452b0ce..fba8051fb29 100644
--- a/include/linux/acpi.h
+++ b/include/linux/acpi.h
@@ -163,8 +163,6 @@ struct acpi_pci_driver {
 int acpi_pci_register_driver(struct acpi_pci_driver *driver);
 void acpi_pci_unregister_driver(struct acpi_pci_driver *driver);
 
-#ifdef CONFIG_ACPI_EC
-
 extern int ec_read(u8 addr, u8 *val);
 extern int ec_write(u8 addr, u8 val);
 extern int ec_transaction(u8 command,
@@ -172,8 +170,6 @@ extern int ec_transaction(u8 command,
                           u8 *rdata, unsigned rdata_len,
 			  int force_poll);
 
-#endif /*CONFIG_ACPI_EC*/
-
 #if defined(CONFIG_ACPI_WMI) || defined(CONFIG_ACPI_WMI_MODULE)
 
 typedef void (*wmi_notify_handler) (u32 value, void *context);
@@ -194,6 +190,50 @@ extern bool wmi_has_guid(const char *guid);
 
 #endif	/* CONFIG_ACPI_WMI */
 
+#define ACPI_VIDEO_OUTPUT_SWITCHING			0x0001
+#define ACPI_VIDEO_DEVICE_POSTING			0x0002
+#define ACPI_VIDEO_ROM_AVAILABLE			0x0004
+#define ACPI_VIDEO_BACKLIGHT				0x0008
+#define ACPI_VIDEO_BACKLIGHT_FORCE_VENDOR		0x0010
+#define ACPI_VIDEO_BACKLIGHT_FORCE_VIDEO		0x0020
+#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VENDOR	0x0040
+#define ACPI_VIDEO_OUTPUT_SWITCHING_FORCE_VIDEO		0x0080
+#define ACPI_VIDEO_BACKLIGHT_DMI_VENDOR			0x0100
+#define ACPI_VIDEO_BACKLIGHT_DMI_VIDEO			0x0200
+#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VENDOR		0x0400
+#define ACPI_VIDEO_OUTPUT_SWITCHING_DMI_VIDEO		0x0800
+
+#if defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE)
+
+extern long acpi_video_get_capabilities(acpi_handle graphics_dev_handle);
+extern long acpi_is_video_device(struct acpi_device *device);
+extern int acpi_video_backlight_support(void);
+extern int acpi_video_display_switch_support(void);
+
+#else
+
+static inline long acpi_video_get_capabilities(acpi_handle graphics_dev_handle)
+{
+	return 0;
+}
+
+static inline long acpi_is_video_device(struct acpi_device *device)
+{
+	return 0;
+}
+
+static inline int acpi_video_backlight_support(void)
+{
+	return 0;
+}
+
+static inline int acpi_video_display_switch_support(void)
+{
+	return 0;
+}
+
+#endif /* defined(CONFIG_ACPI_VIDEO) || defined(CONFIG_ACPI_VIDEO_MODULE) */
+
 extern int acpi_blacklisted(void);
 #ifdef CONFIG_DMI
 extern void acpi_dmi_osi_linux(int enable, const struct dmi_system_id *d);
diff --git a/include/linux/audit.h b/include/linux/audit.h
index 6272a395d43..8f0672d13eb 100644
--- a/include/linux/audit.h
+++ b/include/linux/audit.h
@@ -391,6 +391,7 @@ extern int audit_classify_arch(int arch);
 #ifdef CONFIG_AUDITSYSCALL
 /* These are defined in auditsc.c */
 				/* Public API */
+extern void audit_finish_fork(struct task_struct *child);
 extern int  audit_alloc(struct task_struct *task);
 extern void audit_free(struct task_struct *task);
 extern void audit_syscall_entry(int arch,
@@ -434,7 +435,7 @@ static inline void audit_ptrace(struct task_struct *t)
 
 				/* Private API (for audit.c only) */
 extern unsigned int audit_serial(void);
-extern void auditsc_get_stamp(struct audit_context *ctx,
+extern int auditsc_get_stamp(struct audit_context *ctx,
 			      struct timespec *t, unsigned int *serial);
 extern int  audit_set_loginuid(struct task_struct *task, uid_t loginuid);
 #define audit_get_loginuid(t) ((t)->loginuid)
@@ -504,6 +505,7 @@ static inline int audit_mq_getsetattr(mqd_t mqdes, struct mq_attr *mqstat)
 extern int audit_n_rules;
 extern int audit_signals;
 #else
+#define audit_finish_fork(t)
 #define audit_alloc(t) ({ 0; })
 #define audit_free(t) do { ; } while (0)
 #define audit_syscall_entry(ta,a,b,c,d,e) do { ; } while (0)
@@ -516,7 +518,7 @@ extern int audit_signals;
 #define audit_inode(n,d) do { ; } while (0)
 #define audit_inode_child(d,i,p) do { ; } while (0)
 #define audit_core_dumps(i) do { ; } while (0)
-#define auditsc_get_stamp(c,t,s) do { BUG(); } while (0)
+#define auditsc_get_stamp(c,t,s) (0)
 #define audit_get_loginuid(t) (-1)
 #define audit_get_sessionid(t) (-1)
 #define audit_log_task_context(b) do { ; } while (0)
diff --git a/include/linux/blkdev.h b/include/linux/blkdev.h
index a135256b272..031a315c050 100644
--- a/include/linux/blkdev.h
+++ b/include/linux/blkdev.h
@@ -662,6 +662,7 @@ extern unsigned long blk_max_low_pfn, blk_max_pfn;
  * default timeout for SG_IO if none specified
  */
 #define BLK_DEFAULT_SG_TIMEOUT	(60 * HZ)
+#define BLK_MIN_SG_TIMEOUT	(7 * HZ)
 
 #ifdef CONFIG_BOUNCE
 extern int init_emergency_isa_pool(void);
@@ -786,6 +787,8 @@ static inline void blk_run_address_space(struct address_space *mapping)
 		blk_run_backing_dev(mapping->backing_dev_info, NULL);
 }
 
+extern void blkdev_dequeue_request(struct request *req);
+
 /*
  * blk_end_request() and friends.
  * __blk_end_request() and end_request() must be called with
@@ -820,11 +823,6 @@ extern void blk_update_request(struct request *rq, int error,
 extern unsigned int blk_rq_bytes(struct request *rq);
 extern unsigned int blk_rq_cur_bytes(struct request *rq);
 
-static inline void blkdev_dequeue_request(struct request *req)
-{
-	elv_dequeue_request(req->q, req);
-}
-
 /*
  * Access functions for manipulating queue properties
  */
@@ -921,6 +919,8 @@ extern void blk_set_cmd_filter_defaults(struct blk_cmd_filter *filter);
 
 #define MAX_SEGMENT_SIZE	65536
 
+#define BLK_SEG_BOUNDARY_MASK	0xFFFFFFFFUL
+
 #define blkdev_entry_to_request(entry) list_entry((entry), struct request, queuelist)
 
 static inline int queue_hardsect_size(struct request_queue *q)
diff --git a/include/linux/c2port.h b/include/linux/c2port.h
new file mode 100644
index 00000000000..7b5a2388ba6
--- /dev/null
+++ b/include/linux/c2port.h
@@ -0,0 +1,65 @@
+/*
+ *  Silicon Labs C2 port Linux support
+ *
+ *  Copyright (c) 2007 Rodolfo Giometti <giometti@linux.it>
+ *  Copyright (c) 2007 Eurotech S.p.A. <info@eurotech.it>
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License version 2 as published by
+ * the Free Software Foundation
+ */
+
+#include <linux/device.h>
+
+#define C2PORT_NAME_LEN			32
+
+/*
+ * C2 port basic structs
+ */
+
+/* Main struct */
+struct c2port_ops;
+struct c2port_device {
+	unsigned int access:1;
+	unsigned int flash_access:1;
+
+	int id;
+	char name[C2PORT_NAME_LEN];
+	struct c2port_ops *ops;
+	struct mutex mutex;		/* prevent races during read/write */
+
+	struct device *dev;
+
+	void *private_data;
+};
+
+/* Basic operations */
+struct c2port_ops {
+	/* Flash layout */
+	unsigned short block_size;	/* flash block size in bytes */
+	unsigned short blocks_num;	/* flash blocks number */
+
+	/* Enable or disable the access to C2 port */
+	void (*access)(struct c2port_device *dev, int status);
+
+	/* Set C2D data line as input/output */
+	void (*c2d_dir)(struct c2port_device *dev, int dir);
+
+	/* Read/write C2D data line */
+	int (*c2d_get)(struct c2port_device *dev);
+	void (*c2d_set)(struct c2port_device *dev, int status);
+
+	/* Write C2CK clock line */
+	void (*c2ck_set)(struct c2port_device *dev, int status);
+};
+
+/*
+ * Exported functions
+ */
+
+#define to_class_dev(obj) container_of((obj), struct class_device, kobj)
+#define to_c2port_device(obj) container_of((obj), struct c2port_device, class)
+
+extern struct c2port_device *c2port_device_register(char *name,
+					struct c2port_ops *ops, void *devdata);
+extern void c2port_device_unregister(struct c2port_device *dev);
diff --git a/include/linux/can/core.h b/include/linux/can/core.h
index e9ca210ffa5..f50785ad478 100644
--- a/include/linux/can/core.h
+++ b/include/linux/can/core.h
@@ -19,7 +19,7 @@
 #include <linux/skbuff.h>
 #include <linux/netdevice.h>
 
-#define CAN_VERSION "20071116"
+#define CAN_VERSION "20081130"
 
 /* increment this number each time you change some user-space interface */
 #define CAN_ABI_VERSION "8"
diff --git a/include/linux/compat.h b/include/linux/compat.h
index f061a1ea1b7..e88f3ecf38b 100644
--- a/include/linux/compat.h
+++ b/include/linux/compat.h
@@ -252,12 +252,10 @@ extern int compat_ptrace_request(struct task_struct *child,
 				 compat_long_t request,
 				 compat_ulong_t addr, compat_ulong_t data);
 
-#ifdef __ARCH_WANT_COMPAT_SYS_PTRACE
 extern long compat_arch_ptrace(struct task_struct *child, compat_long_t request,
 			       compat_ulong_t addr, compat_ulong_t data);
 asmlinkage long compat_sys_ptrace(compat_long_t request, compat_long_t pid,
 				  compat_long_t addr, compat_long_t data);
-#endif	/* __ARCH_WANT_COMPAT_SYS_PTRACE */
 
 /*
  * epoll (fs/eventpoll.c) compat bits follow ...
diff --git a/include/linux/cpuset.h b/include/linux/cpuset.h
index 2691926fb50..8e540d32c9f 100644
--- a/include/linux/cpuset.h
+++ b/include/linux/cpuset.h
@@ -74,8 +74,6 @@ static inline int cpuset_do_slab_mem_spread(void)
 	return current->flags & PF_SPREAD_SLAB;
 }
 
-extern void cpuset_track_online_nodes(void);
-
 extern int current_cpuset_is_being_rebound(void);
 
 extern void rebuild_sched_domains(void);
@@ -151,8 +149,6 @@ static inline int cpuset_do_slab_mem_spread(void)
 	return 0;
 }
 
-static inline void cpuset_track_online_nodes(void) {}
-
 static inline int current_cpuset_is_being_rebound(void)
 {
 	return 0;
diff --git a/include/linux/fs.h b/include/linux/fs.h
index 0dcdd9458f4..4a853ef6fd3 100644
--- a/include/linux/fs.h
+++ b/include/linux/fs.h
@@ -63,23 +63,24 @@ extern int dir_notify_enable;
 #define MAY_ACCESS 16
 #define MAY_OPEN 32
 
-#define FMODE_READ ((__force fmode_t)1)
-#define FMODE_WRITE ((__force fmode_t)2)
-
-/* Internal kernel extensions */
-#define FMODE_LSEEK	((__force fmode_t)4)
-#define FMODE_PREAD	((__force fmode_t)8)
-#define FMODE_PWRITE	FMODE_PREAD	/* These go hand in hand */
-
-/* File is being opened for execution. Primary users of this flag are
-   distributed filesystems that can use it to achieve correct ETXTBUSY
-   behavior for cross-node execution/opening_for_writing of files */
-#define FMODE_EXEC	((__force fmode_t)16)
-
-#define FMODE_NDELAY	((__force fmode_t)32)
-#define FMODE_EXCL	((__force fmode_t)64)
+/* file is open for reading */
+#define FMODE_READ		((__force fmode_t)1)
+/* file is open for writing */
+#define FMODE_WRITE		((__force fmode_t)2)
+/* file is seekable */
+#define FMODE_LSEEK		((__force fmode_t)4)
+/* file can be accessed using pread/pwrite */
+#define FMODE_PREAD		((__force fmode_t)8)
+#define FMODE_PWRITE		FMODE_PREAD	/* These go hand in hand */
+/* File is opened for execution with sys_execve / sys_uselib */
+#define FMODE_EXEC		((__force fmode_t)16)
+/* File is opened with O_NDELAY (only set for block devices) */
+#define FMODE_NDELAY		((__force fmode_t)32)
+/* File is opened with O_EXCL (only set for block devices) */
+#define FMODE_EXCL		((__force fmode_t)64)
+/* File is opened using open(.., 3, ..) and is writeable only for ioctls
+   (specialy hack for floppy.c) */
 #define FMODE_WRITE_IOCTL	((__force fmode_t)128)
-#define FMODE_NDELAY_NOW	((__force fmode_t)256)
 
 #define RW_MASK		1
 #define RWA_MASK	2
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index 703eb53cfa2..9c5bc6be2b0 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -6,6 +6,7 @@
 #include <linux/ktime.h>
 #include <linux/init.h>
 #include <linux/types.h>
+#include <linux/module.h>
 #include <linux/kallsyms.h>
 
 #ifdef CONFIG_FUNCTION_TRACER
@@ -231,7 +232,7 @@ ftrace_init_module(unsigned long *start, unsigned long *end) { }
 
 struct boot_trace {
 	pid_t			caller;
-	char			func[KSYM_NAME_LEN];
+	char			func[KSYM_SYMBOL_LEN];
 	int			result;
 	unsigned long long	duration;		/* usecs */
 	ktime_t			calltime;
diff --git a/include/linux/genhd.h b/include/linux/genhd.h
index e439e6aed83..3df7742ce24 100644
--- a/include/linux/genhd.h
+++ b/include/linux/genhd.h
@@ -522,7 +522,9 @@ extern char *disk_name (struct gendisk *hd, int partno, char *buf);
 
 extern int disk_expand_part_tbl(struct gendisk *disk, int target);
 extern int rescan_partitions(struct gendisk *disk, struct block_device *bdev);
-extern int __must_check add_partition(struct gendisk *, int, sector_t, sector_t, int);
+extern struct hd_struct * __must_check add_partition(struct gendisk *disk,
+						     int partno, sector_t start,
+						     sector_t len, int flags);
 extern void delete_partition(struct gendisk *, int);
 extern void printk_all_partitions(void);
 
diff --git a/include/linux/highmem.h b/include/linux/highmem.h
index 7dcbc82f3b7..13875ce9112 100644
--- a/include/linux/highmem.h
+++ b/include/linux/highmem.h
@@ -63,12 +63,14 @@ static inline void *kmap_atomic(struct page *page, enum km_type idx)
 #endif /* CONFIG_HIGHMEM */
 
 /* when CONFIG_HIGHMEM is not set these will be plain clear/copy_page */
+#ifndef clear_user_highpage
 static inline void clear_user_highpage(struct page *page, unsigned long vaddr)
 {
 	void *addr = kmap_atomic(page, KM_USER0);
 	clear_user_page(addr, vaddr, page);
 	kunmap_atomic(addr, KM_USER0);
 }
+#endif
 
 #ifndef __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE
 /**
diff --git a/include/linux/hrtimer.h b/include/linux/hrtimer.h
index 07e510a3b00..3eba43878dc 100644
--- a/include/linux/hrtimer.h
+++ b/include/linux/hrtimer.h
@@ -46,9 +46,6 @@ enum hrtimer_restart {
  * hrtimer callback modes:
  *
  *	HRTIMER_CB_SOFTIRQ:		Callback must run in softirq context
- *	HRTIMER_CB_IRQSAFE:		Callback may run in hardirq context
- *	HRTIMER_CB_IRQSAFE_NO_RESTART:	Callback may run in hardirq context and
- *					does not restart the timer
  *	HRTIMER_CB_IRQSAFE_PERCPU:	Callback must run in hardirq context
  *					Special mode for tick emulation and
  *					scheduler timer. Such timers are per
@@ -61,8 +58,6 @@ enum hrtimer_restart {
  */
 enum hrtimer_cb_mode {
 	HRTIMER_CB_SOFTIRQ,
-	HRTIMER_CB_IRQSAFE,
-	HRTIMER_CB_IRQSAFE_NO_RESTART,
 	HRTIMER_CB_IRQSAFE_PERCPU,
 	HRTIMER_CB_IRQSAFE_UNLOCKED,
 };
diff --git a/include/linux/ide.h b/include/linux/ide.h
index 54525be4b5f..010fb26a157 100644
--- a/include/linux/ide.h
+++ b/include/linux/ide.h
@@ -1296,6 +1296,13 @@ extern int __ide_pci_register_driver(struct pci_driver *driver, struct module *o
 #define ide_pci_register_driver(d) pci_register_driver(d)
 #endif
 
+static inline int ide_pci_is_in_compatibility_mode(struct pci_dev *dev)
+{
+	if ((dev->class >> 8) == PCI_CLASS_STORAGE_IDE && (dev->class & 5) != 5)
+		return 1;
+	return 0;
+}
+
 void ide_pci_setup_ports(struct pci_dev *, const struct ide_port_info *, int,
 			 hw_regs_t *, hw_regs_t **);
 void ide_setup_pci_noise(struct pci_dev *, const struct ide_port_info *);
@@ -1375,6 +1382,7 @@ enum {
 	IDE_HFLAG_IO_32BIT		= (1 << 24),
 	/* unmask IRQs */
 	IDE_HFLAG_UNMASK_IRQS		= (1 << 25),
+	IDE_HFLAG_BROKEN_ALTSTATUS	= (1 << 26),
 	/* serialize ports if DMA is possible (for sl82c105) */
 	IDE_HFLAG_SERIALIZE_DMA		= (1 << 27),
 	/* force host out of "simplex" mode */
diff --git a/include/linux/idr.h b/include/linux/idr.h
index fa035f96f2a..dd846df8cd3 100644
--- a/include/linux/idr.h
+++ b/include/linux/idr.h
@@ -52,13 +52,14 @@ struct idr_layer {
 	unsigned long		 bitmap; /* A zero bit means "space here" */
 	struct idr_layer	*ary[1<<IDR_BITS];
 	int			 count;	 /* When zero, we can release it */
+	int			 layer;	 /* distance from leaf */
 	struct rcu_head		 rcu_head;
 };
 
 struct idr {
 	struct idr_layer *top;
 	struct idr_layer *id_free;
-	int		  layers;
+	int		  layers; /* only valid without concurrent changes */
 	int		  id_free_cnt;
 	spinlock_t	  lock;
 };
diff --git a/include/linux/inotify.h b/include/linux/inotify.h
index bd578578a8b..37ea2894b3c 100644
--- a/include/linux/inotify.h
+++ b/include/linux/inotify.h
@@ -134,6 +134,8 @@ extern void inotify_remove_watch_locked(struct inotify_handle *,
 					struct inotify_watch *);
 extern void get_inotify_watch(struct inotify_watch *);
 extern void put_inotify_watch(struct inotify_watch *);
+extern int pin_inotify_watch(struct inotify_watch *);
+extern void unpin_inotify_watch(struct inotify_watch *);
 
 #else
 
@@ -228,6 +230,15 @@ static inline void put_inotify_watch(struct inotify_watch *watch)
 {
 }
 
+extern inline int pin_inotify_watch(struct inotify_watch *watch)
+{
+	return 0;
+}
+
+extern inline void unpin_inotify_watch(struct inotify_watch *watch)
+{
+}
+
 #endif	/* CONFIG_INOTIFY */
 
 #endif	/* __KERNEL __ */
diff --git a/include/linux/input.h b/include/linux/input.h
index b86fb5581ce..5341e8251f8 100644
--- a/include/linux/input.h
+++ b/include/linux/input.h
@@ -238,6 +238,7 @@ struct input_absinfo {
 #define KEY_KPEQUAL		117
 #define KEY_KPPLUSMINUS		118
 #define KEY_PAUSE		119
+#define KEY_SCALE		120	/* AL Compiz Scale (Expose) */
 
 #define KEY_KPCOMMA		121
 #define KEY_HANGEUL		122
@@ -322,6 +323,7 @@ struct input_absinfo {
 #define KEY_PAUSECD		201
 #define KEY_PROG3		202
 #define KEY_PROG4		203
+#define KEY_DASHBOARD		204	/* AL Dashboard */
 #define KEY_SUSPEND		205
 #define KEY_CLOSE		206	/* AC Close */
 #define KEY_PLAY		207
diff --git a/include/linux/irq.h b/include/linux/irq.h
index d058c57be02..3dddfa703eb 100644
--- a/include/linux/irq.h
+++ b/include/linux/irq.h
@@ -63,7 +63,8 @@ typedef	void (*irq_flow_handler_t)(unsigned int irq,
 #define IRQ_MOVE_PENDING	0x00200000	/* need to re-target IRQ destination */
 #define IRQ_NO_BALANCING	0x00400000	/* IRQ is excluded from balancing */
 #define IRQ_SPURIOUS_DISABLED	0x00800000	/* IRQ was disabled by the spurious trap */
-#define IRQ_MOVE_PCNTXT	0x01000000	/* IRQ migration from process context */
+#define IRQ_MOVE_PCNTXT		0x01000000	/* IRQ migration from process context */
+#define IRQ_AFFINITY_SET	0x02000000	/* IRQ affinity was set from userspace*/
 
 #ifdef CONFIG_IRQ_PER_CPU
 # define CHECK_IRQ_PER_CPU(var) ((var) & IRQ_PER_CPU)
@@ -130,7 +131,7 @@ struct irq_chip {
 
 /**
  * struct irq_desc - interrupt descriptor
- *
+ * @irq:		interrupt number for this descriptor
  * @handle_irq:		highlevel irq-events handler [if NULL, __do_IRQ()]
  * @chip:		low level interrupt hardware access
  * @msi_desc:		MSI descriptor
@@ -149,7 +150,6 @@ struct irq_chip {
  * @cpu:		cpu index useful for balancing
  * @pending_mask:	pending rebalanced interrupts
  * @dir:		/proc/irq/ procfs entry
- * @affinity_entry:	/proc/irq/smp_affinity procfs entry on SMP
  * @name:		flow handler name for /proc/interrupts output
  */
 struct irq_desc {
@@ -210,7 +210,6 @@ extern int setup_irq(unsigned int irq, struct irqaction *new);
 
 #ifdef CONFIG_GENERIC_PENDING_IRQ
 
-void set_pending_irq(unsigned int irq, cpumask_t mask);
 void move_native_irq(int irq);
 void move_masked_irq(int irq);
 
@@ -228,10 +227,6 @@ static inline void move_masked_irq(int irq)
 {
 }
 
-static inline void set_pending_irq(unsigned int irq, cpumask_t mask)
-{
-}
-
 #endif /* CONFIG_GENERIC_PENDING_IRQ */
 
 #else /* CONFIG_SMP */
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index fba141d3ca0..dc7e0d0a647 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -318,32 +318,36 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
 	return buf;
 }
 
-#define pr_emerg(fmt, arg...) \
-	printk(KERN_EMERG fmt, ##arg)
-#define pr_alert(fmt, arg...) \
-	printk(KERN_ALERT fmt, ##arg)
-#define pr_crit(fmt, arg...) \
-	printk(KERN_CRIT fmt, ##arg)
-#define pr_err(fmt, arg...) \
-	printk(KERN_ERR fmt, ##arg)
-#define pr_warning(fmt, arg...) \
-	printk(KERN_WARNING fmt, ##arg)
-#define pr_notice(fmt, arg...) \
-	printk(KERN_NOTICE fmt, ##arg)
-#define pr_info(fmt, arg...) \
-	printk(KERN_INFO fmt, ##arg)
+#ifndef pr_fmt
+#define pr_fmt(fmt) fmt
+#endif
+
+#define pr_emerg(fmt, ...) \
+        printk(KERN_EMERG pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_alert(fmt, ...) \
+        printk(KERN_ALERT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_crit(fmt, ...) \
+        printk(KERN_CRIT pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_err(fmt, ...) \
+        printk(KERN_ERR pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_warning(fmt, ...) \
+        printk(KERN_WARNING pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_notice(fmt, ...) \
+        printk(KERN_NOTICE pr_fmt(fmt), ##__VA_ARGS__)
+#define pr_info(fmt, ...) \
+        printk(KERN_INFO pr_fmt(fmt), ##__VA_ARGS__)
 
 /* If you are writing a driver, please use dev_dbg instead */
 #if defined(CONFIG_DYNAMIC_PRINTK_DEBUG)
 #define pr_debug(fmt, ...) do { \
-	dynamic_pr_debug(fmt, ##__VA_ARGS__); \
+	dynamic_pr_debug(pr_fmt(fmt), ##__VA_ARGS__); \
 	} while (0)
 #elif defined(DEBUG)
-#define pr_debug(fmt, arg...) \
-	printk(KERN_DEBUG fmt, ##arg)
+#define pr_debug(fmt, ...) \
+	printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
 #else
-#define pr_debug(fmt, arg...) \
-	({ if (0) printk(KERN_DEBUG fmt, ##arg); 0; })
+#define pr_debug(fmt, ...) \
+	({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
 #endif
 
 /*
diff --git a/include/linux/libata.h b/include/linux/libata.h
index c7665a4134c..ed3f26eb5df 100644
--- a/include/linux/libata.h
+++ b/include/linux/libata.h
@@ -375,6 +375,7 @@ enum {
 	ATA_HORKAGE_BRIDGE_OK	= (1 << 10),	/* no bridge limits */
 	ATA_HORKAGE_ATAPI_MOD16_DMA = (1 << 11), /* use ATAPI DMA for commands
 						    not multiple of 16 bytes */
+	ATA_HORKAGE_FIRMWARE_WARN = (1 << 12),	/* firwmare update warning */
 
 	 /* DMA mask for user DMA control: User visible values; DO NOT
 	    renumber */
@@ -698,6 +699,7 @@ struct ata_port {
 	unsigned int		cbl;	/* cable type; ATA_CBL_xxx */
 
 	struct ata_queued_cmd	qcmd[ATA_MAX_QUEUE];
+	unsigned long		qc_allocated;
 	unsigned int		qc_active;
 	int			nr_active_links; /* #links with active qcs */
 
diff --git a/include/linux/lockdep.h b/include/linux/lockdep.h
index 331e5f1c2d8..29aec6e1002 100644
--- a/include/linux/lockdep.h
+++ b/include/linux/lockdep.h
@@ -331,10 +331,11 @@ static inline void lockdep_on(void)
 # define lock_set_subclass(l, s, i)		do { } while (0)
 # define lockdep_init()				do { } while (0)
 # define lockdep_info()				do { } while (0)
-# define lockdep_init_map(lock, name, key, sub)	do { (void)(key); } while (0)
+# define lockdep_init_map(lock, name, key, sub) \
+		do { (void)(name); (void)(key); } while (0)
 # define lockdep_set_class(lock, key)		do { (void)(key); } while (0)
 # define lockdep_set_class_and_name(lock, key, name) \
-		do { (void)(key); } while (0)
+		do { (void)(key); (void)(name); } while (0)
 #define lockdep_set_class_and_subclass(lock, key, sub) \
 		do { (void)(key); } while (0)
 #define lockdep_set_subclass(lock, sub)		do { } while (0)
diff --git a/include/linux/memory.h b/include/linux/memory.h
index 2f5f8a5ef2a..36c82c9e6ea 100644
--- a/include/linux/memory.h
+++ b/include/linux/memory.h
@@ -91,7 +91,7 @@ extern int memory_notify(unsigned long val, void *v);
 
 #ifdef CONFIG_MEMORY_HOTPLUG
 #define hotplug_memory_notifier(fn, pri) {			\
-	static struct notifier_block fn##_mem_nb =		\
+	static __meminitdata struct notifier_block fn##_mem_nb =\
 		{ .notifier_call = fn, .priority = pri };	\
 	register_memory_notifier(&fn##_mem_nb);			\
 }
diff --git a/include/linux/mfd/wm8350/rtc.h b/include/linux/mfd/wm8350/rtc.h
index dfda69e9f44..24add2bef6c 100644
--- a/include/linux/mfd/wm8350/rtc.h
+++ b/include/linux/mfd/wm8350/rtc.h
@@ -261,6 +261,8 @@
 
 struct wm8350_rtc {
 	struct platform_device *pdev;
+	struct rtc_device *rtc;
+	int alarm_enabled;      /* used over suspend/resume */
 };
 
 #endif
diff --git a/include/linux/mlx4/device.h b/include/linux/mlx4/device.h
index bd9977b8949..371086fd946 100644
--- a/include/linux/mlx4/device.h
+++ b/include/linux/mlx4/device.h
@@ -179,6 +179,7 @@ struct mlx4_caps {
 	int			num_ports;
 	int			vl_cap[MLX4_MAX_PORTS + 1];
 	int			ib_mtu_cap[MLX4_MAX_PORTS + 1];
+	__be32			ib_port_def_cap[MLX4_MAX_PORTS + 1];
 	u64			def_mac[MLX4_MAX_PORTS + 1];
 	int			eth_mtu_cap[MLX4_MAX_PORTS + 1];
 	int			gid_table_len[MLX4_MAX_PORTS + 1];
diff --git a/include/linux/net.h b/include/linux/net.h
index 6dc14a24004..4515efae4c3 100644
--- a/include/linux/net.h
+++ b/include/linux/net.h
@@ -40,7 +40,7 @@
 #define SYS_GETSOCKOPT	15		/* sys_getsockopt(2)		*/
 #define SYS_SENDMSG	16		/* sys_sendmsg(2)		*/
 #define SYS_RECVMSG	17		/* sys_recvmsg(2)		*/
-#define SYS_PACCEPT	18		/* sys_paccept(2)		*/
+#define SYS_ACCEPT4	18		/* sys_accept4(2)		*/
 
 typedef enum {
 	SS_FREE = 0,			/* not allocated		*/
@@ -100,7 +100,7 @@ enum sock_type {
  * remaining bits are used as flags. */
 #define SOCK_TYPE_MASK 0xf
 
-/* Flags for socket, socketpair, paccept */
+/* Flags for socket, socketpair, accept4 */
 #define SOCK_CLOEXEC	O_CLOEXEC
 #ifndef SOCK_NONBLOCK
 #define SOCK_NONBLOCK	O_NONBLOCK
@@ -223,8 +223,6 @@ extern int 	     sock_map_fd(struct socket *sock, int flags);
 extern struct socket *sockfd_lookup(int fd, int *err);
 #define		     sockfd_put(sock) fput(sock->file)
 extern int	     net_ratelimit(void);
-extern long	     do_accept(int fd, struct sockaddr __user *upeer_sockaddr,
-			       int __user *upeer_addrlen, int flags);
 
 #define net_random()		random32()
 #define net_srandom(seed)	srandom32((__force u32)seed)
diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9d77b1d7dca..e26f5495289 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -319,6 +319,7 @@ enum
 {
 	NAPI_STATE_SCHED,	/* Poll is scheduled */
 	NAPI_STATE_DISABLE,	/* Disable pending */
+	NAPI_STATE_NPSVC,	/* Netpoll - don't dequeue from poll_list */
 };
 
 extern void __napi_schedule(struct napi_struct *n);
@@ -1497,6 +1498,12 @@ static inline void netif_rx_complete(struct net_device *dev,
 {
 	unsigned long flags;
 
+	/*
+	 * don't let napi dequeue from the cpu poll list
+	 * just in case its running on a different cpu
+	 */
+	if (unlikely(test_bit(NAPI_STATE_NPSVC, &napi->state)))
+		return;
 	local_irq_save(flags);
 	__netif_rx_complete(dev, napi);
 	local_irq_restore(flags);
diff --git a/include/linux/netfilter/nfnetlink_conntrack.h b/include/linux/netfilter/nfnetlink_conntrack.h
index c19595c8930..29fe9ea1d34 100644
--- a/include/linux/netfilter/nfnetlink_conntrack.h
+++ b/include/linux/netfilter/nfnetlink_conntrack.h
@@ -141,6 +141,7 @@ enum ctattr_protonat {
 #define CTA_PROTONAT_MAX (__CTA_PROTONAT_MAX - 1)
 
 enum ctattr_natseq {
+	CTA_NAT_SEQ_UNSPEC,
 	CTA_NAT_SEQ_CORRECTION_POS,
 	CTA_NAT_SEQ_OFFSET_BEFORE,
 	CTA_NAT_SEQ_OFFSET_AFTER,
diff --git a/include/linux/netfilter/x_tables.h b/include/linux/netfilter/x_tables.h
index be41b609c88..e52ce475d19 100644
--- a/include/linux/netfilter/x_tables.h
+++ b/include/linux/netfilter/x_tables.h
@@ -251,7 +251,7 @@ struct xt_target_param {
  */
 struct xt_tgchk_param {
 	const char *table;
-	void *entryinfo;
+	const void *entryinfo;
 	const struct xt_target *target;
 	void *targinfo;
 	unsigned int hook_mask;
diff --git a/include/linux/page_cgroup.h b/include/linux/page_cgroup.h
index f546ad6fc02..1e6d34bfa09 100644
--- a/include/linux/page_cgroup.h
+++ b/include/linux/page_cgroup.h
@@ -17,7 +17,7 @@ struct page_cgroup {
 	struct list_head lru;		/* per cgroup LRU list */
 };
 
-void __init pgdat_page_cgroup_init(struct pglist_data *pgdat);
+void __meminit pgdat_page_cgroup_init(struct pglist_data *pgdat);
 void __init page_cgroup_init(void);
 struct page_cgroup *lookup_page_cgroup(struct page *page);
 
@@ -91,7 +91,7 @@ static inline void unlock_page_cgroup(struct page_cgroup *pc)
 #else /* CONFIG_CGROUP_MEM_RES_CTLR */
 struct page_cgroup;
 
-static inline void pgdat_page_cgroup_init(struct pglist_data *pgdat)
+static inline void __meminit pgdat_page_cgroup_init(struct pglist_data *pgdat)
 {
 }
 
diff --git a/include/linux/ratelimit.h b/include/linux/ratelimit.h
index 18a5b9ba9d4..00044b85645 100644
--- a/include/linux/ratelimit.h
+++ b/include/linux/ratelimit.h
@@ -17,11 +17,4 @@ struct ratelimit_state {
 		struct ratelimit_state name = {interval, burst,}
 
 extern int __ratelimit(struct ratelimit_state *rs);
-
-static inline int ratelimit(void)
-{
-	static DEFINE_RATELIMIT_STATE(rs, DEFAULT_RATELIMIT_INTERVAL,
-					DEFAULT_RATELIMIT_BURST);
-	return __ratelimit(&rs);
-}
 #endif
diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h
index 536b0ca46a0..e097c2e6b6d 100644
--- a/include/linux/ring_buffer.h
+++ b/include/linux/ring_buffer.h
@@ -120,6 +120,9 @@ unsigned long ring_buffer_overruns(struct ring_buffer *buffer);
 u64 ring_buffer_time_stamp(int cpu);
 void ring_buffer_normalize_time_stamp(int cpu, u64 *ts);
 
+void tracing_on(void);
+void tracing_off(void);
+
 enum ring_buffer_flags {
 	RB_FL_OVERWRITE		= 1 << 0,
 };
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 295b7c756ca..55e30d11447 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -247,6 +247,7 @@ extern void init_idle(struct task_struct *idle, int cpu);
 extern void init_idle_bootup_task(struct task_struct *idle);
 
 extern int runqueue_is_locked(void);
+extern void task_rq_unlock_wait(struct task_struct *p);
 
 extern cpumask_t nohz_cpu_mask;
 #if defined(CONFIG_SMP) && defined(CONFIG_NO_HZ)
@@ -629,6 +630,10 @@ struct user_struct {
 	atomic_t inotify_watches; /* How many inotify watches does this user have? */
 	atomic_t inotify_devs;	/* How many inotify devs does this user have opened? */
 #endif
+#ifdef CONFIG_EPOLL
+	atomic_t epoll_devs;	/* The number of epoll descriptors currently open */
+	atomic_t epoll_watches;	/* The number of file descriptors currently watched */
+#endif
 #ifdef CONFIG_POSIX_MQUEUE
 	/* protected by mq_lock	*/
 	unsigned long mq_bytes;	/* How many bytes can be allocated to mqueue? */
diff --git a/include/linux/security.h b/include/linux/security.h
index c13f1cec9ab..e3d4ecda267 100644
--- a/include/linux/security.h
+++ b/include/linux/security.h
@@ -1818,17 +1818,21 @@ static inline int security_settime(struct timespec *ts, struct timezone *tz)
 
 static inline int security_vm_enough_memory(long pages)
 {
+	WARN_ON(current->mm == NULL);
 	return cap_vm_enough_memory(current->mm, pages);
 }
 
-static inline int security_vm_enough_memory_kern(long pages)
+static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
 {
-	return cap_vm_enough_memory(current->mm, pages);
+	WARN_ON(mm == NULL);
+	return cap_vm_enough_memory(mm, pages);
 }
 
-static inline int security_vm_enough_memory_mm(struct mm_struct *mm, long pages)
+static inline int security_vm_enough_memory_kern(long pages)
 {
-	return cap_vm_enough_memory(mm, pages);
+	/* If current->mm is a kernel thread then we will pass NULL,
+	   for this specific case that is fine */
+	return cap_vm_enough_memory(current->mm, pages);
 }
 
 static inline int security_bprm_alloc(struct linux_binprm *bprm)
diff --git a/include/linux/serial_core.h b/include/linux/serial_core.h
index e27f216361f..4e4f1277f3b 100644
--- a/include/linux/serial_core.h
+++ b/include/linux/serial_core.h
@@ -155,6 +155,9 @@
 
 #define PORT_SC26XX	82
 
+/* SH-SCI */
+#define PORT_SCIFA	83
+
 #ifdef __KERNEL__
 
 #include <linux/compiler.h>
diff --git a/include/linux/slab.h b/include/linux/slab.h
index ba965c84ae0..000da12b5cf 100644
--- a/include/linux/slab.h
+++ b/include/linux/slab.h
@@ -23,6 +23,34 @@
 #define SLAB_CACHE_DMA		0x00004000UL	/* Use GFP_DMA memory */
 #define SLAB_STORE_USER		0x00010000UL	/* DEBUG: Store the last owner for bug hunting */
 #define SLAB_PANIC		0x00040000UL	/* Panic if kmem_cache_create() fails */
+/*
+ * SLAB_DESTROY_BY_RCU - **WARNING** READ THIS!
+ *
+ * This delays freeing the SLAB page by a grace period, it does _NOT_
+ * delay object freeing. This means that if you do kmem_cache_free()
+ * that memory location is free to be reused at any time. Thus it may
+ * be possible to see another object there in the same RCU grace period.
+ *
+ * This feature only ensures the memory location backing the object
+ * stays valid, the trick to using this is relying on an independent
+ * object validation pass. Something like:
+ *
+ *  rcu_read_lock()
+ * again:
+ *  obj = lockless_lookup(key);
+ *  if (obj) {
+ *    if (!try_get_ref(obj)) // might fail for free objects
+ *      goto again;
+ *
+ *    if (obj->key != key) { // not the object we expected
+ *      put_ref(obj);
+ *      goto again;
+ *    }
+ *  }
+ *  rcu_read_unlock();
+ *
+ * See also the comment on struct slab_rcu in mm/slab.c.
+ */
 #define SLAB_DESTROY_BY_RCU	0x00080000UL	/* Defer freeing slabs to RCU */
 #define SLAB_MEM_SPREAD		0x00100000UL	/* Spread some memory over cpuset */
 #define SLAB_TRACE		0x00200000UL	/* Trace allocations and frees */
diff --git a/include/linux/smp.h b/include/linux/smp.h
index 3f9a60043a9..6e7ba16ff45 100644
--- a/include/linux/smp.h
+++ b/include/linux/smp.h
@@ -146,6 +146,8 @@ static inline void smp_send_reschedule(int cpu) { }
 })
 #define smp_call_function_mask(mask, func, info, wait) \
 			(up_smp_call_function(func, info))
+#define smp_call_function_many(mask, func, info, wait) \
+			(up_smp_call_function(func, info))
 static inline void init_call_single_data(void)
 {
 }
diff --git a/include/linux/ssb/ssb.h b/include/linux/ssb/ssb.h
index e530026eedf..17d9b58f637 100644
--- a/include/linux/ssb/ssb.h
+++ b/include/linux/ssb/ssb.h
@@ -427,12 +427,16 @@ static inline int ssb_dma_mapping_error(struct ssb_device *dev, dma_addr_t addr)
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		return pci_dma_mapping_error(dev->bus->host_pci, addr);
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		return dma_mapping_error(dev->dev, addr);
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 	return -ENOSYS;
 }
 
@@ -441,12 +445,16 @@ static inline dma_addr_t ssb_dma_map_single(struct ssb_device *dev, void *p,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		return pci_map_single(dev->bus->host_pci, p, size, dir);
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		return dma_map_single(dev->dev, p, size, dir);
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 	return 0;
 }
 
@@ -455,14 +463,18 @@ static inline void ssb_dma_unmap_single(struct ssb_device *dev, dma_addr_t dma_a
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		pci_unmap_single(dev->bus->host_pci, dma_addr, size, dir);
 		return;
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		dma_unmap_single(dev->dev, dma_addr, size, dir);
 		return;
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 }
 
 static inline void ssb_dma_sync_single_for_cpu(struct ssb_device *dev,
@@ -472,15 +484,19 @@ static inline void ssb_dma_sync_single_for_cpu(struct ssb_device *dev,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
 					    size, dir);
 		return;
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		dma_sync_single_for_cpu(dev->dev, dma_addr, size, dir);
 		return;
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 }
 
 static inline void ssb_dma_sync_single_for_device(struct ssb_device *dev,
@@ -490,15 +506,19 @@ static inline void ssb_dma_sync_single_for_device(struct ssb_device *dev,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
 					       size, dir);
 		return;
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		dma_sync_single_for_device(dev->dev, dma_addr, size, dir);
 		return;
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 }
 
 static inline void ssb_dma_sync_single_range_for_cpu(struct ssb_device *dev,
@@ -509,17 +529,21 @@ static inline void ssb_dma_sync_single_range_for_cpu(struct ssb_device *dev,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		/* Just sync everything. That's all the PCI API can do. */
 		pci_dma_sync_single_for_cpu(dev->bus->host_pci, dma_addr,
 					    offset + size, dir);
 		return;
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		dma_sync_single_range_for_cpu(dev->dev, dma_addr, offset,
 					      size, dir);
 		return;
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 }
 
 static inline void ssb_dma_sync_single_range_for_device(struct ssb_device *dev,
@@ -530,17 +554,21 @@ static inline void ssb_dma_sync_single_range_for_device(struct ssb_device *dev,
 {
 	switch (dev->bus->bustype) {
 	case SSB_BUSTYPE_PCI:
+#ifdef CONFIG_SSB_PCIHOST
 		/* Just sync everything. That's all the PCI API can do. */
 		pci_dma_sync_single_for_device(dev->bus->host_pci, dma_addr,
 					       offset + size, dir);
 		return;
+#endif
+		break;
 	case SSB_BUSTYPE_SSB:
 		dma_sync_single_range_for_device(dev->dev, dma_addr, offset,
 						 size, dir);
 		return;
 	default:
-		__ssb_dma_not_implemented(dev);
+		break;
 	}
+	__ssb_dma_not_implemented(dev);
 }
 
 
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index d6ff145919c..04fb47bfb92 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -410,8 +410,7 @@ asmlinkage long sys_getsockopt(int fd, int level, int optname,
 asmlinkage long sys_bind(int, struct sockaddr __user *, int);
 asmlinkage long sys_connect(int, struct sockaddr __user *, int);
 asmlinkage long sys_accept(int, struct sockaddr __user *, int __user *);
-asmlinkage long sys_paccept(int, struct sockaddr __user *, int __user *,
-			    const __user sigset_t *, size_t, int);
+asmlinkage long sys_accept4(int, struct sockaddr __user *, int __user *, int);
 asmlinkage long sys_getsockname(int, struct sockaddr __user *, int __user *);
 asmlinkage long sys_getpeername(int, struct sockaddr __user *, int __user *);
 asmlinkage long sys_send(int, void __user *, size_t, unsigned);
diff --git a/include/linux/telephony.h b/include/linux/telephony.h
index 5b2b6261f19..f63afe330ad 100644
--- a/include/linux/telephony.h
+++ b/include/linux/telephony.h
@@ -14,7 +14,7 @@
  *    Authors:       Ed Okerson, <eokerson@quicknet.net>
  *                   Greg Herlein, <gherlein@quicknet.net>
  *
- *    Contributors:  Alan Cox, <alan@redhat.com>
+ *    Contributors:  Alan Cox, <alan@lxorguk.ukuu.org.uk>
  *                   David W. Erhart, <derhart@quicknet.net>
  *
  * IN NO EVENT SHALL QUICKNET TECHNOLOGIES, INC. BE LIABLE TO ANY PARTY FOR
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 8fa973bede5..f72aa51f7bc 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -108,6 +108,7 @@ enum usb_interface_condition {
  *	(in probe()), bound to a driver, or unbinding (in disconnect())
  * @is_active: flag set when the interface is bound and not suspended.
  * @sysfs_files_created: sysfs attributes exist
+ * @unregistering: flag set when the interface is being unregistered
  * @needs_remote_wakeup: flag set when the driver requires remote-wakeup
  *	capability during autosuspend.
  * @needs_altsetting0: flag set when a set-interface request for altsetting 0
@@ -163,6 +164,7 @@ struct usb_interface {
 	enum usb_interface_condition condition;		/* state of binding */
 	unsigned is_active:1;		/* the interface is not suspended */
 	unsigned sysfs_files_created:1;	/* the sysfs attributes exist */
+	unsigned unregistering:1;	/* unregistration is in progress */
 	unsigned needs_remote_wakeup:1;	/* driver requires remote wakeup */
 	unsigned needs_altsetting0:1;	/* switch to altsetting 0 is pending */
 	unsigned needs_binding:1;	/* needs delayed unbind/rebind */
diff --git a/include/linux/usb/ch9.h b/include/linux/usb/ch9.h
index 73a2f4eb1f7..9b42baed390 100644
--- a/include/linux/usb/ch9.h
+++ b/include/linux/usb/ch9.h
@@ -158,8 +158,12 @@ struct usb_ctrlrequest {
  * (rarely) accepted by SET_DESCRIPTOR.
  *
  * Note that all multi-byte values here are encoded in little endian
- * byte order "on the wire".  But when exposed through Linux-USB APIs,
- * they've been converted to cpu byte order.
+ * byte order "on the wire".  Within the kernel and when exposed
+ * through the Linux-USB APIs, they are not converted to cpu byte
+ * order; it is the responsibility of the client code to do this.
+ * The single exception is when device and configuration descriptors (but
+ * not other descriptors) are read from usbfs (i.e. /proc/bus/usb/BBB/DDD);
+ * in this case the fields are converted to host endianness by the kernel.
  */
 
 /*