Re: [PATCH] hwmon: (dell-smm) Add XPS 15 L502X to fan control blacklist

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On 1/27/21 3:00 PM, Pali Rohár wrote:
> On Monday 25 January 2021 21:21:30 Pali Rohár wrote:
>> On Monday 25 January 2021 12:19:38 Guenter Roeck wrote:
>>> On Mon, Jan 25, 2021 at 11:05:40AM +0100, Pali Rohár wrote:
>>>> On Saturday 23 January 2021 18:46:08 Thomas Hebb wrote:
>>>>> It has been reported[0] that the Dell XPS 15 L502X exhibits similar
>>>>> freezing behavior to the other systems[1] on this blacklist. The issue
>>>>> was exposed by a prior change of mine to automatically load
>>>>> dell_smm_hwmon on a wider set of XPS models. To fix the regression, add
>>>>> this model to the blacklist.
>>>>>
>>>>> [0] https://bugzilla.kernel.org/show_bug.cgi?id=211081
>>>>> [1] https://bugzilla.kernel.org/show_bug.cgi?id=195751
>>>>>
>>>>> Fixes: b8a13e5e8f37 ("hwmon: (dell-smm) Use one DMI match for all XPS models")
>>>>> Cc: stable@xxxxxxxxxxxxxxx
>>>>> Reported-by: Bob Hepple <bob.hepple@xxxxxxxxx>
>>>>> Tested-by: Bob Hepple <bob.hepple@xxxxxxxxx>
>>>>> Signed-off-by: Thomas Hebb <tommyhebb@xxxxxxxxx>
>>>>> ---
>>>>>
>>>>>  drivers/hwmon/dell-smm-hwmon.c | 7 +++++++
>>>>>  1 file changed, 7 insertions(+)
>>>>>
>>>>> diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
>>>>> index ec448f5f2dc3..73b9db9e3aab 100644
>>>>> --- a/drivers/hwmon/dell-smm-hwmon.c
>>>>> +++ b/drivers/hwmon/dell-smm-hwmon.c
>>>>> @@ -1159,6 +1159,13 @@ static struct dmi_system_id i8k_blacklist_fan_support_dmi_table[] __initdata = {
>>>>>  			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "XPS13 9333"),
>>>>>  		},
>>>>>  	},
>>>>> +	{
>>>>> +		.ident = "Dell XPS 15 L502X",
>>>>> +		.matches = {
>>>>> +			DMI_MATCH(DMI_SYS_VENDOR, "Dell Inc."),
>>>>> +			DMI_EXACT_MATCH(DMI_PRODUCT_NAME, "Dell System XPS L502X"),
>>>>
>>>> Hello! Are you sure that it is required to completely disable fan
>>>> support? And not only access to fan type label for which is different
>>>> blaclist i8k_blacklist_fan_type_dmi_table?
>>>>
>>>
>>> I'll drop this patch from my branch. Please send a Reviewed-by: or Acked-by: tag
>>> if/when I should apply it.
>>
>> Of course! We will just wait for Bob test results.
> 
> Guenter, now we have all needed information, fix is really needed in
> this form. So you can add my:
> 
> Reviewed-by: Pali Rohár <pali@xxxxxxxxxx>
> 

Applied (again)

Thanks,
Guenter



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