printk: Make it compile with !CONFIG_PRINTK

Commit 3ccf3e83 ("printk/sched: Introduce special
printk_sched() for those awkward moments") overlooked
an #ifdef, so move code around to respect these directives.
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au>
Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Randy Dunlap <rdunlap@xenotime.net>
Link: http://lkml.kernel.org/r/1331811337.18960.179.camel@twinsSigned-off-by: Ingo Molnar <mingo@elte.hu>

kernel/printk.c

@@ -1222,26 +1222,6 @@ int is_console_locked(void)
 static DEFINE_PER_CPU(int, printk_pending);
 static DEFINE_PER_CPU(char [PRINTK_BUF_SIZE], printk_sched_buf);
 
-int printk_sched(const char *fmt, ...)
-{
-	unsigned long flags;
-	va_list args;
-	char *buf;
-	int r;
-
-	local_irq_save(flags);
-	buf = __get_cpu_var(printk_sched_buf);
-
-	va_start(args, fmt);
-	r = vsnprintf(buf, PRINTK_BUF_SIZE, fmt, args);
-	va_end(args);
-
-	__this_cpu_or(printk_pending, PRINTK_PENDING_SCHED);
-	local_irq_restore(flags);
-
-	return r;
-}
-
 void printk_tick(void)
 {
 	if (__this_cpu_read(printk_pending)) {
@@ -1658,6 +1638,26 @@ late_initcall(printk_late_init);
 
 #if defined CONFIG_PRINTK
 
+int printk_sched(const char *fmt, ...)
+{
+	unsigned long flags;
+	va_list args;
+	char *buf;
+	int r;
+
+	local_irq_save(flags);
+	buf = __get_cpu_var(printk_sched_buf);
+
+	va_start(args, fmt);
+	r = vsnprintf(buf, PRINTK_BUF_SIZE, fmt, args);
+	va_end(args);
+
+	__this_cpu_or(printk_pending, PRINTK_PENDING_SCHED);
+	local_irq_restore(flags);
+
+	return r;
+}
+
 /*
  * printk rate limiting, lifted from the networking subsystem.
  *