From: Heiko Carstens <heiko.carstens@de.ibm.com>

The slow-down-printk-during-boot patch depends on preset_lpj being
available.  That's not the case for architectures that have it's own
calibrate_delay() function.

kernel/sched.c:3840: undefined reference to `preset_lpj'

Cc: Randy Dunlap <rdunlap@xenotime.net>
Cc: Dave Jones <davej@redhat.com>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@de.ibm.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
---

 lib/Kconfig.debug |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -puN lib/Kconfig.debug~slow-down-printk-during-boot-fix-4 lib/Kconfig.debug
--- a/lib/Kconfig.debug~slow-down-printk-during-boot-fix-4
+++ a/lib/Kconfig.debug
@@ -413,7 +413,7 @@ config FORCED_INLINING
 
 config BOOT_PRINTK_DELAY
 	bool "Delay each boot printk message by N milliseconds"
-	depends on DEBUG_KERNEL && PRINTK
+	depends on DEBUG_KERNEL && PRINTK && GENERIC_CALIBRATE_DELAY
 	help
 	  This build option allows you to read kernel boot messages
 	  by inserting a short delay after each one.  The delay is
_