linux-kernel - [151/272] fix a shutdown regression in intel

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Date:	Tue, 15 Feb 2011 16:13:28 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...nel.org
Cc:	stable-review@...nel.org, torvalds@...ux-foundation.org,
	akpm@...ux-foundation.org, alan@...rguk.ukuu.org.uk,
	Shaohua Li <shaohua.li@...el.com>
Subject: [151/272] fix a shutdown regression in intel_idle

2.6.37-stable review patch.  If anyone has any objections, please let us know.

------------------

From: Shaohua Li <shaohua.li@...el.com>

commit ec30f343d61391ab23705e50a525da1d55395780 upstream.

Fix a shutdown regression caused by 2a2d31c8dc6f ("intel_idle: open
broadcast clock event").  The clockevent framework can automatically
shutdown broadcast timers for hotremove CPUs.  And we get a shutdown
regression when we shutdown broadcast timer for hot remove CPU, so just
delete some code.

Also fix some section mismatch.

Reported-by: Ari Savolainen <ari.m.savolainen@...il.com>
Signed-off-by: Shaohua Li <shaohua.li@...el.com>
Tested-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@...ux-foundation.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 drivers/idle/intel_idle.c |    8 ++------
 1 file changed, 2 insertions(+), 6 deletions(-)

--- a/drivers/idle/intel_idle.c
+++ b/drivers/idle/intel_idle.c
@@ -258,7 +258,7 @@ static void __setup_broadcast_timer(void
 	clockevents_notify(reason, &cpu);
 }
 
-static int __cpuinit setup_broadcast_cpuhp_notify(struct notifier_block *n,
+static int setup_broadcast_cpuhp_notify(struct notifier_block *n,
 		unsigned long action, void *hcpu)
 {
 	int hotcpu = (unsigned long)hcpu;
@@ -268,15 +268,11 @@ static int __cpuinit setup_broadcast_cpu
 		smp_call_function_single(hotcpu, __setup_broadcast_timer,
 			(void *)true, 1);
 		break;
-	case CPU_DOWN_PREPARE:
-		smp_call_function_single(hotcpu, __setup_broadcast_timer,
-			(void *)false, 1);
-		break;
 	}
 	return NOTIFY_OK;
 }
 
-static struct notifier_block __cpuinitdata setup_broadcast_notifier = {
+static struct notifier_block setup_broadcast_notifier = {
 	.notifier_call = setup_broadcast_cpuhp_notify,
 };
 


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