make kernel/profile.c:time_hook static

{,un}register_timer_hook() is the API that should be used.
Signed-off-by: Adrian Bunk <bunk@kernel.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

include/linux/profile.h

@@ -78,9 +78,6 @@ int profile_event_unregister(enum profile_type, struct notifier_block * n);
 int register_timer_hook(int (*hook)(struct pt_regs *));
 void unregister_timer_hook(int (*hook)(struct pt_regs *));
 
-/* Timer based profiling hook */
-extern int (*timer_hook)(struct pt_regs *);
-
 struct pt_regs;
 
 #else

kernel/profile.c

@@ -37,7 +37,7 @@ struct profile_hit {
 #define NR_PROFILE_GRP		(NR_PROFILE_HIT/PROFILE_GRPSZ)
 
 /* Oprofile timer tick hook */
-int (*timer_hook)(struct pt_regs *) __read_mostly;
+static int (*timer_hook)(struct pt_regs *) __read_mostly;
 
 static atomic_t *prof_buffer;
 static unsigned long prof_len, prof_shift;