linux-kernel - Re: [lm-sensors] [PATCH 1/1] HWMON: coretemp, suspend fix

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Message-ID: <47508C72.8050703@gmail.com>
Date:	Fri, 30 Nov 2007 23:19:30 +0100
From:	Jiri Slaby <jirislaby@...il.com>
To:	Jean Delvare <khali@...ux-fr.org>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	"Rafael J. Wysocki" <rjw@...k.pl>,
	"Mark M. Hoffman" <mhoffman@...htlink.com>,
	linux-kernel@...r.kernel.org, lm-sensors@...sensors.org
Subject: Re: [lm-sensors] [PATCH 1/1] HWMON: coretemp, suspend fix

On 11/30/2007 11:15 PM, Jean Delvare wrote:
> Hi Jiri,

Hi.

> On Fri, 30 Nov 2007 15:12:46 +0100, Jiri Slaby wrote:
>> Ok, I don't see it merged in the latest -mm (mmotm). Could you, Mark, Rafael,
>> sign off this version of the patch (Mark's + Rafael's fix)?
>>
>> --
>>
>> From: Mark M. Hoffman <mhoffman@...htlink.com>
>>
>> coretemp, suspend fix
>>
>> It's not permitted to unregister device/cpu if frozen and going to sleep.
>> It causes deadlock on systems, where coretemp hwmon is loaded. Do it only
>> in non-freezed states instead.
>>
>> Cc: Rafael J. Wysocki <rjw@...k.pl> (frozen fix)
>> Cc: Mark M. Hoffman <mhoffman@...htlink.com>
>> Signed-off-by: Jiri Slaby <jirislaby@...il.com>
>>
>> ---
>> commit 4f0e19b172ed18fb29e8006c4470fd37aa245a7a
>> tree bec1cc4f7a499efe94c5f9d2d208db325914f28e
>> parent 877dcc2ef6c7c17a64155cf201886c49622250e9
>> author Jiri Slaby <jirislaby@...il.com> Tue, 27 Nov 2007 20:19:47 +0100
>> committer Jiri Slaby <ku@...lona.localdomain> Thu, 29 Nov 2007 23:41:11 +0100
>>
>>  drivers/hwmon/coretemp.c |    6 ++++--
>>  1 files changed, 4 insertions(+), 2 deletions(-)
>>
>> diff --git a/drivers/hwmon/coretemp.c b/drivers/hwmon/coretemp.c
>> index 5c82ec7..ce7457d 100644
>> --- a/drivers/hwmon/coretemp.c
>> +++ b/drivers/hwmon/coretemp.c
>> @@ -338,11 +338,13 @@ static int coretemp_cpu_callback(struct notifier_block *nfb,
>>  	switch (action) {
>>  	case CPU_ONLINE:
>>  	case CPU_ONLINE_FROZEN:
>> +	case CPU_DOWN_FAILED:
>>  		coretemp_device_add(cpu);
>> +	case CPU_DOWN_FAILED_FROZEN:
>>  		break;
>> -	case CPU_DEAD:
>> -	case CPU_DEAD_FROZEN:
>> +	case CPU_DOWN_PREPARE:
>>  		coretemp_device_remove(cpu);
>> +	case CPU_DOWN_PREPARE_FROZEN:
>>  		break;
>>  	}
>>  	return NOTIFY_OK;
> 
> Should this change go to the stable tree(s) as well?

Sorry, I have no idea. Rafael?
-
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