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Date: Thu, 05 Jun 2008 10:36:07 +0800
From: Li Zefan <lizf@cn.fujitsu.com>
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To: Andrew Morton <akpm@linux-foundation.org>
CC: Ingo Molnar <mingo@elte.hu>, LKML <linux-kernel@vger.kernel.org>
Subject: [-mmotm] build failure: undefined reference to `wakeup_preempt_entity'
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kernel/built-in.o: In function `pick_next':
/home/lizf/linux-2.6.26-rc4/kernel/sched_fair.c:738: undefined reference to `wakeup_preempt_entity'
kernel/built-in.o: In function `check_preempt_wakeup':
/home/lizf/linux-2.6.26-rc4/kernel/sched_fair.c:1194: undefined reference to `wakeup_preempt_entity'

This patch:
	sched-delete-dead-stuff.patch

	------------------------------------------------
	From: Andrew Morton <akpm@linux-foundation.org>

	kernel/sched_fair.c:1170: warning: 'wakeup_preempt_entity' defined but not used

	Cc: Ingo Molnar <mingo@elte.hu>
	Signed-off-by: Andrew Morton <akpm@linux-foundation.org>

But I can see this function is used in sched_fair.c.