14 files changed, 200 insertions, 53 deletions

diff --git a/include/linux/completion.h b/include/linux/completion.h
index 57faa60de9bd..02ef8835999c 100644
--- a/include/linux/completion.h
+++ b/include/linux/completion.h
@@ -49,6 +49,8 @@ extern unsigned long wait_for_completion_timeout(struct completion *x,
                                                    unsigned long timeout);
 extern unsigned long wait_for_completion_interruptible_timeout(
                         struct completion *x, unsigned long timeout);
+extern bool try_wait_for_completion(struct completion *x);
+extern bool completion_done(struct completion *x);
 
 extern void complete(struct completion *);
 extern void complete_all(struct completion *);
@@ -56,48 +58,4 @@ extern void complete_all(struct completion *);
 #define INIT_COMPLETION(x)      ((x).done = 0)
 
 
-/**
- *      try_wait_for_completion - try to decrement a completion without blocking
- *      @x:     completion structure
- *
- *      Returns: 0 if a decrement cannot be done without blocking
- *               1 if a decrement succeeded.
- *
- *      If a completion is being used as a counting completion,
- *      attempt to decrement the counter without blocking. This
- *      enables us to avoid waiting if the resource the completion
- *      is protecting is not available.
- */
-static inline bool try_wait_for_completion(struct completion *x)
-{
-        int ret = 1;
-
-        spin_lock_irq(&x->wait.lock);
-        if (!x->done)
-                ret = 0;
-        else
-                x->done--;
-        spin_unlock_irq(&x->wait.lock);
-        return ret;
-}
-
-/**
- *      completion_done - Test to see if a completion has any waiters
- *      @x:     completion structure
- *
- *      Returns: 0 if there are waiters (wait_for_completion() in progress)
- *               1 if there are no waiters.
- *
- */
-static inline bool completion_done(struct completion *x)
-{
-        int ret = 1;
-
-        spin_lock_irq(&x->wait.lock);
-        if (!x->done)
-                ret = 0;
-        spin_unlock_irq(&x->wait.lock);
-        return ret;
-}
-
 #endif
diff --git a/include/linux/cred.h b/include/linux/cred.h
new file mode 100644
index 000000000000..b69222cc1fd2
--- /dev/null
+++ b/include/linux/cred.h
@@ -0,0 +1,50 @@
+/* Credentials management
+ *
+ * Copyright (C) 2008 Red Hat, Inc. All Rights Reserved.
+ * Written by David Howells (dhowells@redhat.com)
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public Licence
+ * as published by the Free Software Foundation; either version
+ * 2 of the Licence, or (at your option) any later version.
+ */
+
+#ifndef _LINUX_CRED_H
+#define _LINUX_CRED_H
+
+#define get_current_user()      (get_uid(current->user))
+
+#define task_uid(task)          ((task)->uid)
+#define task_gid(task)          ((task)->gid)
+#define task_euid(task)         ((task)->euid)
+#define task_egid(task)         ((task)->egid)
+
+#define current_uid()           (current->uid)
+#define current_gid()           (current->gid)
+#define current_euid()          (current->euid)
+#define current_egid()          (current->egid)
+#define current_suid()          (current->suid)
+#define current_sgid()          (current->sgid)
+#define current_fsuid()         (current->fsuid)
+#define current_fsgid()         (current->fsgid)
+#define current_cap()           (current->cap_effective)
+
+#define current_uid_gid(_uid, _gid)             \
+do {                                            \
+        *(_uid) = current->uid;                 \
+        *(_gid) = current->gid;                 \
+} while(0)
+
+#define current_euid_egid(_uid, _gid)           \
+do {                                            \
+        *(_uid) = current->euid;                \
+        *(_gid) = current->egid;                \
+} while(0)
+
+#define current_fsuid_fsgid(_uid, _gid)         \
+do {                                            \
+        *(_uid) = current->fsuid;               \
+        *(_gid) = current->fsgid;               \
+} while(0)
+
+#endif /* _LINUX_CRED_H */
diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h
index f368d041e02d..bb384068272e 100644
--- a/include/linux/ftrace.h
+++ b/include/linux/ftrace.h
@@ -98,6 +98,27 @@ static inline void tracer_disable(void)
 #endif
 }
 
+/* Ftrace disable/restore without lock. Some synchronization mechanism
+ * must be used to prevent ftrace_enabled to be changed between
+ * disable/restore. */
+static inline int __ftrace_enabled_save(void)
+{
+#ifdef CONFIG_FTRACE
+        int saved_ftrace_enabled = ftrace_enabled;
+        ftrace_enabled = 0;
+        return saved_ftrace_enabled;
+#else
+        return 0;
+#endif
+}
+
+static inline void __ftrace_enabled_restore(int enabled)
+{
+#ifdef CONFIG_FTRACE
+        ftrace_enabled = enabled;
+#endif
+}
+
 #ifdef CONFIG_FRAME_POINTER
 /* TODO: need to fix this for ARM */
 # define CALLER_ADDR0 ((unsigned long)__builtin_return_address(0))
diff --git a/include/linux/kexec.h b/include/linux/kexec.h
index 32110cede64f..17f76fc05173 100644
--- a/include/linux/kexec.h
+++ b/include/linux/kexec.h
@@ -25,8 +25,8 @@
 #error KEXEC_CONTROL_MEMORY_LIMIT not defined
 #endif
 
-#ifndef KEXEC_CONTROL_CODE_SIZE
-#error KEXEC_CONTROL_CODE_SIZE not defined
+#ifndef KEXEC_CONTROL_PAGE_SIZE
+#error KEXEC_CONTROL_PAGE_SIZE not defined
 #endif
 
 #ifndef KEXEC_ARCH
diff --git a/include/linux/reboot.h b/include/linux/reboot.h
index b93b541cf111..988e55fe649b 100644
--- a/include/linux/reboot.h
+++ b/include/linux/reboot.h
@@ -59,6 +59,7 @@ extern void machine_crash_shutdown(struct pt_regs *);
  * Architecture independent implemenations of sys_reboot commands.
  */
 
+extern void kernel_restart_prepare(char *cmd);
 extern void kernel_restart(char *cmd);
 extern void kernel_halt(void);
 extern void kernel_power_off(void);
diff --git a/include/linux/sched.h b/include/linux/sched.h
index 5850bfb968a8..cfb0d87b99fc 100644
--- a/include/linux/sched.h
+++ b/include/linux/sched.h
@@ -87,6 +87,7 @@ struct sched_param {
 #include <linux/task_io_accounting.h>
 #include <linux/kobject.h>
 #include <linux/latencytop.h>
+#include <linux/cred.h>
 
 #include <asm/processor.h>
 
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h
index cfcc45b3bef0..358661c9990e 100644
--- a/include/linux/skbuff.h
+++ b/include/linux/skbuff.h
@@ -901,7 +901,7 @@ extern unsigned char *__pskb_pull_tail(struct sk_buff *skb, int delta);
 static inline unsigned char *__pskb_pull(struct sk_buff *skb, unsigned int len)
 {
         if (len > skb_headlen(skb) &&
-            !__pskb_pull_tail(skb, len-skb_headlen(skb)))
+            !__pskb_pull_tail(skb, len - skb_headlen(skb)))
                 return NULL;
         skb->len -= len;
         return skb->data += len;
@@ -918,7 +918,7 @@ static inline int pskb_may_pull(struct sk_buff *skb, unsigned int len)
                 return 1;
         if (unlikely(len > skb->len))
                 return 0;
-        return __pskb_pull_tail(skb, len-skb_headlen(skb)) != NULL;
+        return __pskb_pull_tail(skb, len - skb_headlen(skb)) != NULL;
 }
 
 /**
@@ -1321,7 +1321,7 @@ static inline int skb_padto(struct sk_buff *skb, unsigned int len)
         unsigned int size = skb->len;
         if (likely(size >= len))
                 return 0;
-        return skb_pad(skb, len-size);
+        return skb_pad(skb, len - size);
 }
 
 static inline int skb_add_data(struct sk_buff *skb,
diff --git a/include/linux/suspend.h b/include/linux/suspend.h
index c63435095970..2ce8207686e2 100644
--- a/include/linux/suspend.h
+++ b/include/linux/suspend.h
@@ -217,11 +217,11 @@ struct platform_hibernation_ops {
 #ifdef CONFIG_HIBERNATION
 /* kernel/power/snapshot.c */
 extern void __register_nosave_region(unsigned long b, unsigned long e, int km);
-static inline void register_nosave_region(unsigned long b, unsigned long e)
+static inline void __init register_nosave_region(unsigned long b, unsigned long e)
 {
         __register_nosave_region(b, e, 0);
 }
-static inline void register_nosave_region_late(unsigned long b, unsigned long e)
+static inline void __init register_nosave_region_late(unsigned long b, unsigned long e)
 {
         __register_nosave_region(b, e, 1);
 }
diff --git a/include/linux/tty.h b/include/linux/tty.h
index e3579cb086e0..0cbec74ec086 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -331,6 +331,8 @@ extern int tty_write_room(struct tty_struct *tty);
 extern void tty_driver_flush_buffer(struct tty_struct *tty);
 extern void tty_throttle(struct tty_struct *tty);
 extern void tty_unthrottle(struct tty_struct *tty);
+extern int tty_do_resize(struct tty_struct *tty, struct tty_struct *real_tty,
+                                                struct winsize *ws);
 
 extern int is_current_pgrp_orphaned(void);
 extern struct pid *tty_get_pgrp(struct tty_struct *tty);
diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index e1065ac0d922..16d27944c321 100644
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -168,6 +168,18 @@
  *
  *      Optional: If not provided then the write method is called under
  *      the atomic write lock to keep it serialized with the ldisc.
+ *
+ * int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty,
+ *                              unsigned int rows, unsigned int cols);
+ *
+ *      Called when a termios request is issued which changes the
+ *      requested terminal geometry.
+ *
+ *      Optional: the default action is to update the termios structure
+ *      without error. This is usually the correct behaviour. Drivers should
+ *      not force errors here if they are not resizable objects (eg a serial
+ *      line). See tty_do_resize() if you need to wrap the standard method
+ *      in your own logic - the usual case.
  */
 
 #include <linux/fs.h>
@@ -206,6 +218,8 @@ struct tty_operations {
         int (*tiocmget)(struct tty_struct *tty, struct file *file);
         int (*tiocmset)(struct tty_struct *tty, struct file *file,
                         unsigned int set, unsigned int clear);
+        int (*resize)(struct tty_struct *tty, struct tty_struct *real_tty,
+                                struct winsize *ws);
 #ifdef CONFIG_CONSOLE_POLL
         int (*poll_init)(struct tty_driver *driver, int line, char *options);
         int (*poll_get_char)(struct tty_driver *driver, int line);
diff --git a/include/linux/usb.h b/include/linux/usb.h
index 5811c5da69f9..0924cd9c30f6 100644
--- a/include/linux/usb.h
+++ b/include/linux/usb.h
@@ -110,6 +110,8 @@ enum usb_interface_condition {
  * @sysfs_files_created: sysfs attributes exist
  * @needs_remote_wakeup: flag set when the driver requires remote-wakeup
  *      capability during autosuspend.
+ * @needs_binding: flag set when the driver should be re-probed or unbound
+ *      following a reset or suspend operation it doesn't support.
  * @dev: driver model's view of this device
  * @usb_dev: if an interface is bound to the USB major, this will point
  *      to the sysfs representation for that device.
diff --git a/include/linux/usb/musb.h b/include/linux/usb/musb.h
new file mode 100644
index 000000000000..630962c04ca4
--- /dev/null
+++ b/include/linux/usb/musb.h
@@ -0,0 +1,98 @@
+/*
+ * This is used to for host and peripheral modes of the driver for
+ * Inventra (Multidrop) Highspeed Dual-Role Controllers:  (M)HDRC.
+ *
+ * Board initialization should put one of these into dev->platform_data,
+ * probably on some platform_device named "musb_hdrc".  It encapsulates
+ * key configuration differences between boards.
+ */
+
+/* The USB role is defined by the connector used on the board, so long as
+ * standards are being followed.  (Developer boards sometimes won't.)
+ */
+enum musb_mode {
+        MUSB_UNDEFINED = 0,
+        MUSB_HOST,              /* A or Mini-A connector */
+        MUSB_PERIPHERAL,        /* B or Mini-B connector */
+        MUSB_OTG                /* Mini-AB connector */
+};
+
+struct clk;
+
+struct musb_hdrc_eps_bits {
+        const char      name[16];
+        u8              bits;
+};
+
+struct musb_hdrc_config {
+        /* MUSB configuration-specific details */
+        unsigned        multipoint:1;   /* multipoint device */
+        unsigned        dyn_fifo:1;     /* supports dynamic fifo sizing */
+        unsigned        soft_con:1;     /* soft connect required */
+        unsigned        utm_16:1;       /* utm data witdh is 16 bits */
+        unsigned        big_endian:1;   /* true if CPU uses big-endian */
+        unsigned        mult_bulk_tx:1; /* Tx ep required for multbulk pkts */
+        unsigned        mult_bulk_rx:1; /* Rx ep required for multbulk pkts */
+        unsigned        high_iso_tx:1;  /* Tx ep required for HB iso */
+        unsigned        high_iso_rx:1;  /* Rx ep required for HD iso */
+        unsigned        dma:1;          /* supports DMA */
+        unsigned        vendor_req:1;   /* vendor registers required */
+
+        u8              num_eps;        /* number of endpoints _with_ ep0 */
+        u8              dma_channels;   /* number of dma channels */
+        u8              dyn_fifo_size;  /* dynamic size in bytes */
+        u8              vendor_ctrl;    /* vendor control reg width */
+        u8              vendor_stat;    /* vendor status reg witdh */
+        u8              dma_req_chan;   /* bitmask for required dma channels */
+        u8              ram_bits;       /* ram address size */
+
+        struct musb_hdrc_eps_bits *eps_bits;
+};
+
+struct musb_hdrc_platform_data {
+        /* MUSB_HOST, MUSB_PERIPHERAL, or MUSB_OTG */
+        u8              mode;
+
+        /* for clk_get() */
+        const char      *clock;
+
+        /* (HOST or OTG) switch VBUS on/off */
+        int             (*set_vbus)(struct device *dev, int is_on);
+
+        /* (HOST or OTG) mA/2 power supplied on (default = 8mA) */
+        u8              power;
+
+        /* (PERIPHERAL) mA/2 max power consumed (default = 100mA) */
+        u8              min_power;
+
+        /* (HOST or OTG) msec/2 after VBUS on till power good */
+        u8              potpgt;
+
+        /* Power the device on or off */
+        int             (*set_power)(int state);
+
+        /* Turn device clock on or off */
+        int             (*set_clock)(struct clk *clock, int is_on);
+
+        /* MUSB configuration-specific details */
+        struct musb_hdrc_config *config;
+};
+
+
+/* TUSB 6010 support */
+
+#define TUSB6010_OSCCLK_60      16667   /* psec/clk @ 60.0 MHz */
+#define TUSB6010_REFCLK_24      41667   /* psec/clk @ 24.0 MHz XI */
+#define TUSB6010_REFCLK_19      52083   /* psec/clk @ 19.2 MHz CLKIN */
+
+#ifdef  CONFIG_ARCH_OMAP2
+
+extern int __init tusb6010_setup_interface(
+                struct musb_hdrc_platform_data *data,
+                unsigned ps_refclk, unsigned waitpin,
+                unsigned async_cs, unsigned sync_cs,
+                unsigned irq, unsigned dmachan);
+
+extern int tusb6010_platform_retime(unsigned is_refclk);
+
+#endif  /* OMAP2 */
diff --git a/include/linux/usb/serial.h b/include/linux/usb/serial.h
index 09a3e6a7518f..655341d0f534 100644
--- a/include/linux/usb/serial.h
+++ b/include/linux/usb/serial.h
@@ -17,7 +17,8 @@
 #include <linux/mutex.h>
 
 #define SERIAL_TTY_MAJOR        188     /* Nice legal number now */
-#define SERIAL_TTY_MINORS       255     /* loads of devices :) */
+#define SERIAL_TTY_MINORS       254     /* loads of devices :) */
+#define SERIAL_TTY_NO_MINOR     255     /* No minor was assigned */
 
 /* The maximum number of ports one device can grab at once */
 #define MAX_NUM_PORTS           8
diff --git a/include/linux/vt_kern.h b/include/linux/vt_kern.h
index 1c78d56c57e5..1cbd0a7db4e6 100644
--- a/include/linux/vt_kern.h
+++ b/include/linux/vt_kern.h
@@ -35,7 +35,6 @@ extern int fg_console, last_console, want_console;
 int vc_allocate(unsigned int console);
 int vc_cons_allocated(unsigned int console);
 int vc_resize(struct vc_data *vc, unsigned int cols, unsigned int lines);
-int vc_lock_resize(struct vc_data *vc, unsigned int cols, unsigned int lines);
 void vc_deallocate(unsigned int console);
 void reset_palette(struct vc_data *vc);
 void do_blank_screen(int entering_gfx);