Fix for TUF laptops returning with an -ENOSPC on calling
asus_wmi_evaluate_method_buf() when fetching default curves. The TUF method
requires at least 32 bytes space.
This also moves and changes the pr_debug() in fan_curve_check_present() to
pr_warn() in fan_curve_get_factory_default() so that there is at least some
indication in logs of why it fails.
Signed-off-by: Luke D. Jones <[email protected]>
---
drivers/platform/x86/asus-wmi.c | 9 ++++-----
1 file changed, 4 insertions(+), 5 deletions(-)
diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
index 3d9fd58573f9..11203213e00d 100644
--- a/drivers/platform/x86/asus-wmi.c
+++ b/drivers/platform/x86/asus-wmi.c
@@ -108,7 +108,7 @@ module_param(fnlock_default, bool, 0444);
#define WMI_EVENT_MASK 0xFFFF
#define FAN_CURVE_POINTS 8
-#define FAN_CURVE_BUF_LEN (FAN_CURVE_POINTS * 2)
+#define FAN_CURVE_BUF_LEN 32
#define FAN_CURVE_DEV_CPU 0x00
#define FAN_CURVE_DEV_GPU 0x01
/* Mask to determine if setting temperature or percentage */
@@ -2383,8 +2383,10 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
curves = &asus->custom_fan_curves[fan_idx];
err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
FAN_CURVE_BUF_LEN);
- if (err)
+ if (err) {
+ pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
return err;
+ }
fan_curve_copy_from_buf(curves, buf);
curves->device_id = fan_dev;
@@ -2402,9 +2404,6 @@ static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
err = fan_curve_get_factory_default(asus, fan_dev);
if (err) {
- pr_debug("fan_curve_get_factory_default(0x%08x) failed: %d\n",
- fan_dev, err);
- /* Don't cause probe to fail on devices without fan-curves */
return 0;
}
--
2.37.2
On Sun, Aug 28, 2022 at 07:46:38PM +1200, Luke D. Jones wrote:
> Fix for TUF laptops returning with an -ENOSPC on calling
> asus_wmi_evaluate_method_buf() when fetching default curves. The TUF method
> requires at least 32 bytes space.
>
> This also moves and changes the pr_debug() in fan_curve_check_present() to
> pr_warn() in fan_curve_get_factory_default() so that there is at least some
> indication in logs of why it fails.
>
> Signed-off-by: Luke D. Jones <[email protected]>
> ---
> drivers/platform/x86/asus-wmi.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 3d9fd58573f9..11203213e00d 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -108,7 +108,7 @@ module_param(fnlock_default, bool, 0444);
> #define WMI_EVENT_MASK 0xFFFF
>
> #define FAN_CURVE_POINTS 8
> -#define FAN_CURVE_BUF_LEN (FAN_CURVE_POINTS * 2)
> +#define FAN_CURVE_BUF_LEN 32
> #define FAN_CURVE_DEV_CPU 0x00
> #define FAN_CURVE_DEV_GPU 0x01
> /* Mask to determine if setting temperature or percentage */
> @@ -2383,8 +2383,10 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
> curves = &asus->custom_fan_curves[fan_idx];
> err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
> FAN_CURVE_BUF_LEN);
> - if (err)
> + if (err) {
> + pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
> return err;
> + }
>
> fan_curve_copy_from_buf(curves, buf);
> curves->device_id = fan_dev;
> @@ -2402,9 +2404,6 @@ static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
>
> err = fan_curve_get_factory_default(asus, fan_dev);
> if (err) {
> - pr_debug("fan_curve_get_factory_default(0x%08x) failed: %d\n",
> - fan_dev, err);
> - /* Don't cause probe to fail on devices without fan-curves */
The pr_warn() should be here. If you want to have a message from the call
in fan_curve_enable_store(), add dev_err() there.
Guenter
> return 0;
> }
>
Hi All,
On 8/29/22 15:35, Guenter Roeck wrote:
> On Sun, Aug 28, 2022 at 07:46:38PM +1200, Luke D. Jones wrote:
>> Fix for TUF laptops returning with an -ENOSPC on calling
>> asus_wmi_evaluate_method_buf() when fetching default curves. The TUF method
>> requires at least 32 bytes space.
>>
>> This also moves and changes the pr_debug() in fan_curve_check_present() to
>> pr_warn() in fan_curve_get_factory_default() so that there is at least some
>> indication in logs of why it fails.
>>
>> Signed-off-by: Luke D. Jones <[email protected]>
>> ---
>> drivers/platform/x86/asus-wmi.c | 9 ++++-----
>> 1 file changed, 4 insertions(+), 5 deletions(-)
>>
>> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
>> index 3d9fd58573f9..11203213e00d 100644
>> --- a/drivers/platform/x86/asus-wmi.c
>> +++ b/drivers/platform/x86/asus-wmi.c
>> @@ -108,7 +108,7 @@ module_param(fnlock_default, bool, 0444);
>> #define WMI_EVENT_MASK 0xFFFF
>>
>> #define FAN_CURVE_POINTS 8
>> -#define FAN_CURVE_BUF_LEN (FAN_CURVE_POINTS * 2)
>> +#define FAN_CURVE_BUF_LEN 32
>> #define FAN_CURVE_DEV_CPU 0x00
>> #define FAN_CURVE_DEV_GPU 0x01
>> /* Mask to determine if setting temperature or percentage */
>> @@ -2383,8 +2383,10 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
>> curves = &asus->custom_fan_curves[fan_idx];
>> err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
>> FAN_CURVE_BUF_LEN);
>> - if (err)
>> + if (err) {
>> + pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
>> return err;
>> + }
>>
>> fan_curve_copy_from_buf(curves, buf);
>> curves->device_id = fan_dev;
>> @@ -2402,9 +2404,6 @@ static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
>>
>> err = fan_curve_get_factory_default(asus, fan_dev);
>> if (err) {
>> - pr_debug("fan_curve_get_factory_default(0x%08x) failed: %d\n",
>> - fan_dev, err);
>> - /* Don't cause probe to fail on devices without fan-curves */
>
> The pr_warn() should be here. If you want to have a message from the call
> in fan_curve_enable_store(), add dev_err() there.
Guenter I can understand where you are coming from with the warn vs err
thing but IMHO that is a minor concern and I'm actually a fan of pushing
error logging closer to the first failing call so that we only have
one place to log the error instead of having to log it separately in
all the callers.
So I'm going to take this patch as is.
Regards,
Hans
Hi,
On 8/28/22 09:46, Luke D. Jones wrote:
> Fix for TUF laptops returning with an -ENOSPC on calling
> asus_wmi_evaluate_method_buf() when fetching default curves. The TUF method
> requires at least 32 bytes space.
>
> This also moves and changes the pr_debug() in fan_curve_check_present() to
> pr_warn() in fan_curve_get_factory_default() so that there is at least some
> indication in logs of why it fails.
>
> Signed-off-by: Luke D. Jones <[email protected]>
Thank you for your patch, I've applied this patch to my review-hans
branch:
https://git.kernel.org/pub/scm/linux/kernel/git/pdx86/platform-drivers-x86.git/log/?h=review-hans
Note it will show up in my review-hans branch once I've pushed my
local branch there, which might take a while.
Once I've run some tests on this branch the patches there will be
added to the platform-drivers-x86/for-next branch and eventually
will be included in the pdx86 pull-request to Linus for the next
merge-window.
Regards,
Hans
> ---
> drivers/platform/x86/asus-wmi.c | 9 ++++-----
> 1 file changed, 4 insertions(+), 5 deletions(-)
>
> diff --git a/drivers/platform/x86/asus-wmi.c b/drivers/platform/x86/asus-wmi.c
> index 3d9fd58573f9..11203213e00d 100644
> --- a/drivers/platform/x86/asus-wmi.c
> +++ b/drivers/platform/x86/asus-wmi.c
> @@ -108,7 +108,7 @@ module_param(fnlock_default, bool, 0444);
> #define WMI_EVENT_MASK 0xFFFF
>
> #define FAN_CURVE_POINTS 8
> -#define FAN_CURVE_BUF_LEN (FAN_CURVE_POINTS * 2)
> +#define FAN_CURVE_BUF_LEN 32
> #define FAN_CURVE_DEV_CPU 0x00
> #define FAN_CURVE_DEV_GPU 0x01
> /* Mask to determine if setting temperature or percentage */
> @@ -2383,8 +2383,10 @@ static int fan_curve_get_factory_default(struct asus_wmi *asus, u32 fan_dev)
> curves = &asus->custom_fan_curves[fan_idx];
> err = asus_wmi_evaluate_method_buf(asus->dsts_id, fan_dev, mode, buf,
> FAN_CURVE_BUF_LEN);
> - if (err)
> + if (err) {
> + pr_warn("%s (0x%08x) failed: %d\n", __func__, fan_dev, err);
> return err;
> + }
>
> fan_curve_copy_from_buf(curves, buf);
> curves->device_id = fan_dev;
> @@ -2402,9 +2404,6 @@ static int fan_curve_check_present(struct asus_wmi *asus, bool *available,
>
> err = fan_curve_get_factory_default(asus, fan_dev);
> if (err) {
> - pr_debug("fan_curve_get_factory_default(0x%08x) failed: %d\n",
> - fan_dev, err);
> - /* Don't cause probe to fail on devices without fan-curves */
> return 0;
> }
>