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

Conflicts:
	arch/sh/kernel/cpu/sh2/setup-sh7619.c
	arch/sh/kernel/cpu/sh2a/setup-mxg.c
	arch/sh/kernel/cpu/sh2a/setup-sh7201.c
	arch/sh/kernel/cpu/sh2a/setup-sh7203.c
	arch/sh/kernel/cpu/sh2a/setup-sh7206.c
	arch/sh/kernel/cpu/sh3/setup-sh7705.c
	arch/sh/kernel/cpu/sh3/setup-sh770x.c
	arch/sh/kernel/cpu/sh3/setup-sh7710.c
	arch/sh/kernel/cpu/sh3/setup-sh7720.c
	arch/sh/kernel/cpu/sh4/setup-sh4-202.c
	arch/sh/kernel/cpu/sh4/setup-sh7750.c
	arch/sh/kernel/cpu/sh4/setup-sh7760.c
	arch/sh/kernel/cpu/sh4a/setup-sh7343.c
	arch/sh/kernel/cpu/sh4a/setup-sh7366.c
	arch/sh/kernel/cpu/sh4a/setup-sh7722.c
	arch/sh/kernel/cpu/sh4a/setup-sh7723.c
	arch/sh/kernel/cpu/sh4a/setup-sh7724.c
	arch/sh/kernel/cpu/sh4a/setup-sh7763.c
	arch/sh/kernel/cpu/sh4a/setup-sh7770.c
	arch/sh/kernel/cpu/sh4a/setup-sh7780.c
	arch/sh/kernel/cpu/sh4a/setup-sh7785.c
	arch/sh/kernel/cpu/sh4a/setup-sh7786.c
	arch/sh/kernel/cpu/sh4a/setup-shx3.c
	arch/sh/kernel/cpu/sh5/setup-sh5.c
	drivers/serial/sh-sci.c
	drivers/serial/sh-sci.h
	include/linux/serial_sci.h

1 files changed, 102 insertions, 207 deletions

diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index fac104e7186a..d0fbc043de60 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -4,6 +4,8 @@
 /*
  * 'kernel.h' contains some often-used function prototypes etc
  */
+#define __ALIGN_KERNEL(x, a)            __ALIGN_KERNEL_MASK(x, (typeof(x))(a) - 1)
+#define __ALIGN_KERNEL_MASK(x, mask)    (((x) + (mask)) & ~(mask))
 
 #ifdef __KERNEL__
 
@@ -15,17 +17,14 @@
 #include <linux/bitops.h>
 #include <linux/log2.h>
 #include <linux/typecheck.h>
-#include <linux/ratelimit.h>
+#include <linux/printk.h>
 #include <linux/dynamic_debug.h>
 #include <asm/byteorder.h>
 #include <asm/bug.h>
 
-extern const char linux_banner[];
-extern const char linux_proc_banner[];
-
-#define USHORT_MAX      ((u16)(~0U))
-#define SHORT_MAX       ((s16)(USHORT_MAX>>1))
-#define SHORT_MIN       (-SHORT_MAX - 1)
+#define USHRT_MAX       ((u16)(~0U))
+#define SHRT_MAX        ((s16)(USHRT_MAX>>1))
+#define SHRT_MIN        ((s16)(-SHRT_MAX - 1))
 #define INT_MAX         ((int)(~0U>>1))
 #define INT_MIN         (-INT_MAX - 1)
 #define UINT_MAX        (~0U)
@@ -38,16 +37,39 @@ extern const char linux_proc_banner[];
 
 #define STACK_MAGIC     0xdeadbeef
 
-#define ALIGN(x,a)              __ALIGN_MASK(x,(typeof(x))(a)-1)
-#define __ALIGN_MASK(x,mask)    (((x)+(mask))&~(mask))
+#define ALIGN(x, a)             __ALIGN_KERNEL((x), (a))
+#define __ALIGN_MASK(x, mask)   __ALIGN_KERNEL_MASK((x), (mask))
 #define PTR_ALIGN(p, a)         ((typeof(p))ALIGN((unsigned long)(p), (a)))
 #define IS_ALIGNED(x, a)                (((x) & ((typeof(x))(a) - 1)) == 0)
 
 #define ARRAY_SIZE(arr) (sizeof(arr) / sizeof((arr)[0]) + __must_be_array(arr))
 
+/*
+ * This looks more complex than it should be. But we need to
+ * get the type for the ~ right in round_down (it needs to be
+ * as wide as the result!), and we want to evaluate the macro
+ * arguments just once each.
+ */
+#define __round_mask(x, y) ((__typeof__(x))((y)-1))
+#define round_up(x, y) ((((x)-1) | __round_mask(x, y))+1)
+#define round_down(x, y) ((x) & ~__round_mask(x, y))
+
 #define FIELD_SIZEOF(t, f) (sizeof(((t*)0)->f))
 #define DIV_ROUND_UP(n,d) (((n) + (d) - 1) / (d))
-#define roundup(x, y) ((((x) + ((y) - 1)) / (y)) * (y))
+
+/* The `const' in roundup() prevents gcc-3.3 from calling __divdi3 */
+#define roundup(x, y) (                                 \
+{                                                       \
+        const typeof(y) __y = y;                        \
+        (((x) + (__y - 1)) / __y) * __y;                \
+}                                                       \
+)
+#define rounddown(x, y) (                               \
+{                                                       \
+        typeof(x) __x = (x);                            \
+        __x - (__x % (y));                              \
+}                                                       \
+)
 #define DIV_ROUND_CLOSEST(x, divisor)(                  \
 {                                                       \
         typeof(divisor) __divisor = divisor;            \
@@ -88,31 +110,6 @@ extern const char linux_proc_banner[];
  */
 #define lower_32_bits(n) ((u32)(n))
 
-#define KERN_EMERG      "<0>"   /* system is unusable                   */
-#define KERN_ALERT      "<1>"   /* action must be taken immediately     */
-#define KERN_CRIT       "<2>"   /* critical conditions                  */
-#define KERN_ERR        "<3>"   /* error conditions                     */
-#define KERN_WARNING    "<4>"   /* warning conditions                   */
-#define KERN_NOTICE     "<5>"   /* normal but significant condition     */
-#define KERN_INFO       "<6>"   /* informational                        */
-#define KERN_DEBUG      "<7>"   /* debug-level messages                 */
-
-/* Use the default kernel loglevel */
-#define KERN_DEFAULT    "<d>"
-/*
- * Annotation for a "continued" line of log printout (only done after a
- * line that had no enclosing \n). Only to be used by core/arch code
- * during early bootup (a continued line is not SMP-safe otherwise).
- */
-#define KERN_CONT       "<c>"
-
-extern int console_printk[];
-
-#define console_loglevel (console_printk[0])
-#define default_message_loglevel (console_printk[1])
-#define minimum_console_loglevel (console_printk[2])
-#define default_console_loglevel (console_printk[3])
-
 struct completion;
 struct pt_regs;
 struct user;
@@ -125,7 +122,7 @@ extern int _cond_resched(void);
 #endif
 
 #ifdef CONFIG_DEBUG_SPINLOCK_SLEEP
-  void __might_sleep(char *file, int line);
+  void __might_sleep(const char *file, int line, int preempt_offset);
 /**
  * might_sleep - annotation for functions that can sleep
  *
@@ -137,15 +134,22 @@ extern int _cond_resched(void);
  * supposed to.
  */
 # define might_sleep() \
-        do { __might_sleep(__FILE__, __LINE__); might_resched(); } while (0)
+        do { __might_sleep(__FILE__, __LINE__, 0); might_resched(); } while (0)
 #else
+  static inline void __might_sleep(const char *file, int line,
+                                   int preempt_offset) { }
 # define might_sleep() do { might_resched(); } while (0)
 #endif
 
 #define might_sleep_if(cond) do { if (cond) might_sleep(); } while (0)
 
 #define abs(x) ({                               \
-                int __x = (x);                  \
+                long __x = (x);                 \
+                (__x < 0) ? -__x : __x;         \
+        })
+
+#define abs64(x) ({                             \
+                s64 __x = (x);                  \
                 (__x < 0) ? -__x : __x;         \
         })
 
@@ -159,11 +163,12 @@ static inline void might_fault(void)
 #endif
 
 extern struct atomic_notifier_head panic_notifier_list;
-extern long (*panic_blink)(long time);
+extern long (*panic_blink)(int state);
 NORET_TYPE void panic(const char * fmt, ...)
         __attribute__ ((NORET_AND format (printf, 1, 2))) __cold;
 extern void oops_enter(void);
 extern void oops_exit(void);
+void print_oops_end_marker(void);
 extern int oops_may_print(void);
 NORET_TYPE void do_exit(long error_code)
         ATTRIB_NORET;
@@ -173,10 +178,10 @@ extern unsigned long simple_strtoul(const char *,char **,unsigned int);
 extern long simple_strtol(const char *,char **,unsigned int);
 extern unsigned long long simple_strtoull(const char *,char **,unsigned int);
 extern long long simple_strtoll(const char *,char **,unsigned int);
-extern int strict_strtoul(const char *, unsigned int, unsigned long *);
-extern int strict_strtol(const char *, unsigned int, long *);
-extern int strict_strtoull(const char *, unsigned int, unsigned long long *);
-extern int strict_strtoll(const char *, unsigned int, long long *);
+extern int __must_check strict_strtoul(const char *, unsigned int, unsigned long *);
+extern int __must_check strict_strtol(const char *, unsigned int, long *);
+extern int __must_check strict_strtoull(const char *, unsigned int, unsigned long long *);
+extern int __must_check strict_strtoll(const char *, unsigned int, long long *);
 extern int sprintf(char * buf, const char * fmt, ...)
         __attribute__ ((format (printf, 2, 3)));
 extern int vsprintf(char *buf, const char *, va_list)
@@ -210,99 +215,15 @@ extern int func_ptr_is_kernel_text(void *ptr);
 struct pid;
 extern struct pid *session_of_pgrp(struct pid *pgrp);
 
-/*
- * FW_BUG
- * Add this to a message where you are sure the firmware is buggy or behaves
- * really stupid or out of spec. Be aware that the responsible BIOS developer
- * should be able to fix this issue or at least get a concrete idea of the
- * problem by reading your message without the need of looking at the kernel
- * code.
- * 
- * Use it for definite and high priority BIOS bugs.
- *
- * FW_WARN
- * Use it for not that clear (e.g. could the kernel messed up things already?)
- * and medium priority BIOS bugs.
- *
- * FW_INFO
- * Use this one if you want to tell the user or vendor about something
- * suspicious, but generally harmless related to the firmware.
- *
- * Use it for information or very low priority BIOS bugs.
- */
-#define FW_BUG          "[Firmware Bug]: "
-#define FW_WARN         "[Firmware Warn]: "
-#define FW_INFO         "[Firmware Info]: "
-
-#ifdef CONFIG_PRINTK
-asmlinkage int vprintk(const char *fmt, va_list args)
-        __attribute__ ((format (printf, 1, 0)));
-asmlinkage int printk(const char * fmt, ...)
-        __attribute__ ((format (printf, 1, 2))) __cold;
-
-extern struct ratelimit_state printk_ratelimit_state;
-extern int printk_ratelimit(void);
-extern bool printk_timed_ratelimit(unsigned long *caller_jiffies,
-                                   unsigned int interval_msec);
-
-/*
- * Print a one-time message (analogous to WARN_ONCE() et al):
- */
-#define printk_once(x...) ({                    \
-        static int __print_once = 1;            \
-                                                \
-        if (__print_once) {                     \
-                __print_once = 0;               \
-                printk(x);                      \
-        }                                       \
-})
-
-void log_buf_kexec_setup(void);
-#else
-static inline int vprintk(const char *s, va_list args)
-        __attribute__ ((format (printf, 1, 0)));
-static inline int vprintk(const char *s, va_list args) { return 0; }
-static inline int printk(const char *s, ...)
-        __attribute__ ((format (printf, 1, 2)));
-static inline int __cold printk(const char *s, ...) { return 0; }
-static inline int printk_ratelimit(void) { return 0; }
-static inline bool printk_timed_ratelimit(unsigned long *caller_jiffies, \
-                                          unsigned int interval_msec)   \
-                { return false; }
-
-/* No effect, but we still get type checking even in the !PRINTK case: */
-#define printk_once(x...) printk(x)
-
-static inline void log_buf_kexec_setup(void)
-{
-}
-#endif
-
-extern int printk_needs_cpu(int cpu);
-extern void printk_tick(void);
-
-extern void asmlinkage __attribute__((format(printf, 1, 2)))
-        early_printk(const char *fmt, ...);
-
 unsigned long int_sqrt(unsigned long);
 
-static inline void console_silent(void)
-{
-        console_loglevel = 0;
-}
-
-static inline void console_verbose(void)
-{
-        if (console_loglevel)
-                console_loglevel = 15;
-}
-
 extern void bust_spinlocks(int yes);
 extern void wake_up_klogd(void);
 extern int oops_in_progress;            /* If set, an oops, panic(), BUG() or die() is in progress */
 extern int panic_timeout;
 extern int panic_on_oops;
 extern int panic_on_unrecovered_nmi;
+extern int panic_on_io_nmi;
 extern const char *print_tainted(void);
 extern void add_taint(unsigned flag);
 extern int test_taint(unsigned flag);
@@ -330,22 +251,7 @@ extern enum system_states {
 #define TAINT_OVERRIDDEN_ACPI_TABLE     8
 #define TAINT_WARN                      9
 #define TAINT_CRAP                      10
-
-extern void dump_stack(void) __cold;
-
-enum {
-        DUMP_PREFIX_NONE,
-        DUMP_PREFIX_ADDRESS,
-        DUMP_PREFIX_OFFSET
-};
-extern void hex_dump_to_buffer(const void *buf, size_t len,
-                                int rowsize, int groupsize,
-                                char *linebuf, size_t linebuflen, bool ascii);
-extern void print_hex_dump(const char *level, const char *prefix_str,
-                                int prefix_type, int rowsize, int groupsize,
-                                const void *buf, size_t len, bool ascii);
-extern void print_hex_dump_bytes(const char *prefix_str, int prefix_type,
-                        const void *buf, size_t len);
+#define TAINT_FIRMWARE_WORKAROUND       11
 
 extern const char hex_asc[];
 #define hex_asc_lo(x)   hex_asc[((x) & 0x0f)]
@@ -358,49 +264,8 @@ static inline char *pack_hex_byte(char *buf, u8 byte)
         return buf;
 }
 
-#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__)
-#define pr_cont(fmt, ...) \
-        printk(KERN_CONT fmt, ##__VA_ARGS__)
-
-/* pr_devel() should produce zero code unless DEBUG is defined */
-#ifdef DEBUG
-#define pr_devel(fmt, ...) \
-        printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
-#else
-#define pr_devel(fmt, ...) \
-        ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
-#endif
-
-/* If you are writing a driver, please use dev_dbg instead */
-#if defined(DEBUG)
-#define pr_debug(fmt, ...) \
-        printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__)
-#elif defined(CONFIG_DYNAMIC_DEBUG)
-/* dynamic_pr_debug() uses pr_fmt() internally so we don't need it here */
-#define pr_debug(fmt, ...) do { \
-        dynamic_pr_debug(fmt, ##__VA_ARGS__); \
-        } while (0)
-#else
-#define pr_debug(fmt, ...) \
-        ({ if (0) printk(KERN_DEBUG pr_fmt(fmt), ##__VA_ARGS__); 0; })
-#endif
+extern int hex_to_bin(char ch);
+extern void hex2bin(u8 *dst, const char *src, size_t count);
 
 /*
  * General tracing related utility functions - trace_printk(),
@@ -433,14 +298,18 @@ static inline void tracing_off(void) { }
 static inline void tracing_off_permanent(void) { }
 static inline int tracing_is_on(void) { return 0; }
 #endif
+
+enum ftrace_dump_mode {
+        DUMP_NONE,
+        DUMP_ALL,
+        DUMP_ORIG,
+};
+
 #ifdef CONFIG_TRACING
 extern void tracing_start(void);
 extern void tracing_stop(void);
 extern void ftrace_off_permanent(void);
 
-extern void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3);
-
 static inline void __attribute__ ((format (printf, 1, 2)))
 ____trace_printk_check_format(const char *fmt, ...)
 {
@@ -489,6 +358,8 @@ extern int
 __trace_printk(unsigned long ip, const char *fmt, ...)
         __attribute__ ((format (printf, 2, 3)));
 
+extern void trace_dump_stack(void);
+
 /*
  * The double __builtin_constant_p is because gcc will give us an error
  * if we try to allocate the static variable to fmt if it is not a
@@ -512,16 +383,15 @@ __ftrace_vbprintk(unsigned long ip, const char *fmt, va_list ap);
 extern int
 __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap);
 
-extern void ftrace_dump(void);
+extern void ftrace_dump(enum ftrace_dump_mode oops_dump_mode);
 #else
-static inline void
-ftrace_special(unsigned long arg1, unsigned long arg2, unsigned long arg3) { }
 static inline int
 trace_printk(const char *fmt, ...) __attribute__ ((format (printf, 1, 2)));
 
 static inline void tracing_start(void) { }
 static inline void tracing_stop(void) { }
 static inline void ftrace_off_permanent(void) { }
+static inline void trace_dump_stack(void) { }
 static inline int
 trace_printk(const char *fmt, ...)
 {
@@ -532,21 +402,10 @@ ftrace_vprintk(const char *fmt, va_list ap)
 {
         return 0;
 }
-static inline void ftrace_dump(void) { }
+static inline void ftrace_dump(enum ftrace_dump_mode oops_dump_mode) { }
 #endif /* CONFIG_TRACING */
 
 /*
- *      Display an IP address in readable format.
- */
-
-#define NIPQUAD(addr) \
-        ((unsigned char *)&addr)[0], \
-        ((unsigned char *)&addr)[1], \
-        ((unsigned char *)&addr)[2], \
-        ((unsigned char *)&addr)[3]
-#define NIPQUAD_FMT "%u.%u.%u.%u"
-
-/*
  * min()/max()/clamp() macros that also do
  * strict type-checking.. See the
  * "unnecessary" pointer comparison.
@@ -563,6 +422,34 @@ static inline void ftrace_dump(void) { }
         (void) (&_max1 == &_max2);              \
         _max1 > _max2 ? _max1 : _max2; })
 
+#define min3(x, y, z) ({                        \
+        typeof(x) _min1 = (x);                  \
+        typeof(y) _min2 = (y);                  \
+        typeof(z) _min3 = (z);                  \
+        (void) (&_min1 == &_min2);              \
+        (void) (&_min1 == &_min3);              \
+        _min1 < _min2 ? (_min1 < _min3 ? _min1 : _min3) : \
+                (_min2 < _min3 ? _min2 : _min3); })
+
+#define max3(x, y, z) ({                        \
+        typeof(x) _max1 = (x);                  \
+        typeof(y) _max2 = (y);                  \
+        typeof(z) _max3 = (z);                  \
+        (void) (&_max1 == &_max2);              \
+        (void) (&_max1 == &_max3);              \
+        _max1 > _max2 ? (_max1 > _max3 ? _max1 : _max3) : \
+                (_max2 > _max3 ? _max2 : _max3); })
+
+/**
+ * min_not_zero - return the minimum that is _not_ zero, unless both are zero
+ * @x: value1
+ * @y: value2
+ */
+#define min_not_zero(x, y) ({                   \
+        typeof(x) __x = (x);                    \
+        typeof(y) __y = (y);                    \
+        __x == 0 ? __y : ((__y == 0) ? __x : min(__x, __y)); })
+
 /**
  * clamp - return a value clamped to a given range with strict typechecking
  * @val: current value
@@ -674,13 +561,21 @@ struct sysinfo {
 };
 
 /* Force a compilation error if condition is true */
-#define BUILD_BUG_ON(condition) ((void)sizeof(char[1 - 2*!!(condition)]))
+#define BUILD_BUG_ON(condition) ((void)BUILD_BUG_ON_ZERO(condition))
+
+/* Force a compilation error if condition is constant and true */
+#define MAYBE_BUILD_BUG_ON(cond) ((void)sizeof(char[1 - 2 * !!(cond)]))
+
+/* Force a compilation error if a constant expression is not a power of 2 */
+#define BUILD_BUG_ON_NOT_POWER_OF_2(n)                  \
+        BUILD_BUG_ON((n) == 0 || (((n) & ((n) - 1)) != 0))
 
 /* Force a compilation error if condition is true, but also produce a
    result (of value 0 and type size_t), so the expression can be used
    e.g. in a structure initializer (or where-ever else comma expressions
    aren't permitted). */
-#define BUILD_BUG_ON_ZERO(e) (sizeof(char[1 - 2 * !!(e)]) - 1)
+#define BUILD_BUG_ON_ZERO(e) (sizeof(struct { int:-!!(e); }))
+#define BUILD_BUG_ON_NULL(e) ((void *)sizeof(struct { int:-!!(e); }))
 
 /* Trap pasters of __FUNCTION__ at compile-time */
 #define __FUNCTION__ (__func__)