linux-kernel - [PATCH] fix slown down printk on boot compile error

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Message-ID: <20070801111644.GB12124@osiris.boeblingen.de.ibm.com>
Date:	Wed, 1 Aug 2007 13:16:44 +0200
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	linux-kernel@...r.kernel.org, Randy Dunlap <rdunlap@...otime.net>,
	Dave Jones <davej@...hat.com>,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: [PATCH] fix slown down printk on boot compile error

From: Heiko Carstens <heiko.carstens@...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@...otime.net>
Cc: Dave Jones <davej@...hat.com>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com>
---
 lib/Kconfig.debug |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

Index: linux-2.6.22/lib/Kconfig.debug
===================================================================
--- linux-2.6.22.orig/lib/Kconfig.debug
+++ linux-2.6.22/lib/Kconfig.debug
@@ -436,7 +436,7 @@ 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
-
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