From 061b810224f7f3c74619b50eb8ef91c33529fcfb Mon Sep 17 00:00:00 2001
From: Zhao Chenhui <chenhui.zhao@freescale.com>
Date: Thu, 9 May 2013 13:48:54 +0800
Subject: powerpc/sysfs: disable hotplug for the boot cpu

Some features depend on the boot cpu, for instance, hibernate/suspend.
So disable hotplug for the boot cpu.

Change-Id: I1e582c4b3d7d243e9fb04dab3174da21a2e25b94
Signed-off-by: Zhao Chenhui <chenhui.zhao@freescale.com>
Reviewed-on: http://git.am.freescale.net:8181/2457
Reviewed-by: Wood Scott-B07421 <scottwood@freescale.com>
Reviewed-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>
Tested-by: Fleming Andrew-AFLEMING <AFLEMING@freescale.com>

diff --git a/arch/powerpc/kernel/sysfs.c b/arch/powerpc/kernel/sysfs.c
index 3ce1f86..0591d2a6 100644
--- a/arch/powerpc/kernel/sysfs.c
+++ b/arch/powerpc/kernel/sysfs.c
@@ -655,8 +655,10 @@ static int __init topology_init(void)
 		 * CPU.  For instance, the boot cpu might never be valid
 		 * for hotplugging.
 		 */
-		if (ppc_md.cpu_die)
+		if (ppc_md.cpu_die && cpu != boot_cpuid)
 			c->hotpluggable = 1;
+		else
+			c->hotpluggable = 0;
 
 		if (cpu_online(cpu) || c->hotpluggable) {
 			register_cpu(c, cpu);
-- 
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