Merge branch 'printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git...

* 'printk-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip:
  printk: correct the behavior of printk_timed_ratelimit()
  vsprintf: unify the format decoding layer for its 3 users, cleanup
  fix regression from "vsprintf: unify the format decoding layer for its 3 users"
  vsprintf: fix bug in negative value printing
  vsprintf: unify the format decoding layer for its 3 users
  vsprintf: add binary printf
  printk: introduce printk_once()

Fix trivial conflicts (printk_once vs log_buf_kexec_setup() added near
each other) in include/linux/kernel.h.

diff --cc include/linux/kernel.h
index 556d781,6e4406e..cff58e2
--- 1/include/linux/kernel.h
--- 2/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@@ -242,7 -242,19 +242,20 @@@ extern struct ratelimit_state printk_ra
  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)));
@@@ -254,9 -266,10 +267,13 @@@ static inline int printk_ratelimit(void
  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);

diff --cc include/linux/string.h
index 8852739,27ac317..3c877d6
--- 1/include/linux/string.h
--- 2/include/linux/string.h
+++ b/include/linux/string.h
@@@ -10,9 -10,9 +10,10 @@@
  #include <linux/compiler.h>   /* for inline */
  #include <linux/types.h>      /* for size_t */
  #include <linux/stddef.h>     /* for NULL */
+ #include <stdarg.h>
  
  extern char *strndup_user(const char __user *, long);
 +extern void *memdup_user(const void __user *, size_t);
  
  /*
   * Include machine specific inline routines

diff --cc kernel/printk.c
Simple merge