diff mbox series

[v2,2/2] hwmon: (dell-smm) Improve warning messages

Message ID 20220822174053.8750-3-W_Armin@gmx.de (mailing list archive)
State Accepted
Headers show
Series hwmon: (dell-smm) Minor fixes | expand

Commit Message

Armin Wolf Aug. 22, 2022, 5:40 p.m. UTC
When dell-smm-hwmon is loaded on a machine with a buggy BIOS
with the option "force" being enabled, it wrongly prints
that the buggy features where disabled. This may cause
users to wrongly assume that the driver still protects them
from these BIOS bugs even with "force" being enabled.

Replace the messages with two messages each which are depending
on the value of the "force" parameter. The messages which are
being printed when "force" is not set use dev_notice() instead
of dev_warn() since they only serve as a notice.

Tested on a Dell Inspiron 3505.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
---
 drivers/hwmon/dell-smm-hwmon.c | 14 ++++++++++----
 1 file changed, 10 insertions(+), 4 deletions(-)

--
2.30.2

Comments

Guenter Roeck Aug. 29, 2022, 1:52 p.m. UTC | #1
On Mon, Aug 22, 2022 at 07:40:53PM +0200, Armin Wolf wrote:
> When dell-smm-hwmon is loaded on a machine with a buggy BIOS
> with the option "force" being enabled, it wrongly prints
> that the buggy features where disabled. This may cause
> users to wrongly assume that the driver still protects them
> from these BIOS bugs even with "force" being enabled.
> 
> Replace the messages with two messages each which are depending
> on the value of the "force" parameter. The messages which are
> being printed when "force" is not set use dev_notice() instead
> of dev_warn() since they only serve as a notice.
> 
> Tested on a Dell Inspiron 3505.
> 
> Signed-off-by: Armin Wolf <W_Armin@gmx.de>

Applied to hwmon-next.

Thanks,
Guenter

> ---
>  drivers/hwmon/dell-smm-hwmon.c | 14 ++++++++++----
>  1 file changed, 10 insertions(+), 4 deletions(-)
> 
> --
> 2.30.2
> 
> diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
> index 9cac80358072..01a94b62c2ab 100644
> --- a/drivers/hwmon/dell-smm-hwmon.c
> +++ b/drivers/hwmon/dell-smm-hwmon.c
> @@ -1356,15 +1356,21 @@ static int __init dell_smm_probe(struct platform_device *pdev)
>  	platform_set_drvdata(pdev, data);
> 
>  	if (dmi_check_system(i8k_blacklist_fan_support_dmi_table)) {
> -		dev_warn(&pdev->dev, "broken Dell BIOS detected, disallow fan support\n");
> -		if (!force)
> +		if (!force) {
> +			dev_notice(&pdev->dev, "Disabling fan support due to BIOS bugs\n");
>  			data->disallow_fan_support = true;
> +		} else {
> +			dev_warn(&pdev->dev, "Enabling fan support despite BIOS bugs\n");
> +		}
>  	}
> 
>  	if (dmi_check_system(i8k_blacklist_fan_type_dmi_table)) {
> -		dev_warn(&pdev->dev, "broken Dell BIOS detected, disallow fan type call\n");
> -		if (!force)
> +		if (!force) {
> +			dev_notice(&pdev->dev, "Disabling fan type call due to BIOS bugs\n");
>  			data->disallow_fan_type_call = true;
> +		} else {
> +			dev_warn(&pdev->dev, "Enabling fan type call despite BIOS bugs\n");
> +		}
>  	}
> 
>  	strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),
diff mbox series

Patch

diff --git a/drivers/hwmon/dell-smm-hwmon.c b/drivers/hwmon/dell-smm-hwmon.c
index 9cac80358072..01a94b62c2ab 100644
--- a/drivers/hwmon/dell-smm-hwmon.c
+++ b/drivers/hwmon/dell-smm-hwmon.c
@@ -1356,15 +1356,21 @@  static int __init dell_smm_probe(struct platform_device *pdev)
 	platform_set_drvdata(pdev, data);

 	if (dmi_check_system(i8k_blacklist_fan_support_dmi_table)) {
-		dev_warn(&pdev->dev, "broken Dell BIOS detected, disallow fan support\n");
-		if (!force)
+		if (!force) {
+			dev_notice(&pdev->dev, "Disabling fan support due to BIOS bugs\n");
 			data->disallow_fan_support = true;
+		} else {
+			dev_warn(&pdev->dev, "Enabling fan support despite BIOS bugs\n");
+		}
 	}

 	if (dmi_check_system(i8k_blacklist_fan_type_dmi_table)) {
-		dev_warn(&pdev->dev, "broken Dell BIOS detected, disallow fan type call\n");
-		if (!force)
+		if (!force) {
+			dev_notice(&pdev->dev, "Disabling fan type call due to BIOS bugs\n");
 			data->disallow_fan_type_call = true;
+		} else {
+			dev_warn(&pdev->dev, "Enabling fan type call despite BIOS bugs\n");
+		}
 	}

 	strscpy(data->bios_version, i8k_get_dmi_data(DMI_BIOS_VERSION),