ACK: [PATCH][v2] acpi/method: check full and battery power if acpi_video0 exists

[ivanhu]

On 4/20/19 4:26 AM, Alex Hung wrote:
> 8b9e5e4c07f4 added checks for full and battery power in _BCL list,
> but ACPI spec does not necessary ask them to be included (please
> see examples in ACPI spec B.5.2). However, Linux kernel relies on this
> behaviours.
>
> Let's only check full and battery power only if acpi_video0 interface is
> used.
>
> Signed-off-by: Alex Hung <alex.hung at canonical.com>
> ---
>  src/acpi/method/method.c | 74 +++++++++++++++++++++-------------------
>  1 file changed, 38 insertions(+), 36 deletions(-)
>
> diff --git a/src/acpi/method/method.c b/src/acpi/method/method.c
> index 635c4813..d1f20bb2 100644
> --- a/src/acpi/method/method.c
> +++ b/src/acpi/method/method.c
> @@ -5791,42 +5791,6 @@ static void method_test_BCL_return(
>  		failed = true;
>  	}
>  
> -	matching_levels = false;
> -	for (i = 2; i < obj->Package.Count; i++) {
> -		if (obj->Package.Elements[0].Integer.Value ==
> -		    obj->Package.Elements[i].Integer.Value) {
> -			matching_levels = true;
> -			break;
> -		}
> -	}
> -
> -	if (!matching_levels) {
> -		failed = true;
> -		fwts_failed(fw, LOG_LEVEL_CRITICAL,
> -			"Method_BCLFullNotInList",
> -			"brightness level on full power (%" PRIu64
> -			") is not in brightness levels.",
> -			obj->Package.Elements[0].Integer.Value);
> -	}
> -
> -	matching_levels = false;
> -	for (i = 2; i < obj->Package.Count; i++) {
> -		if (obj->Package.Elements[1].Integer.Value ==
> -		    obj->Package.Elements[i].Integer.Value) {
> -			matching_levels = true;
> -			break;
> -		}
> -	}
> -
> -	if (!matching_levels) {
> -		failed = true;
> -		fwts_failed(fw, LOG_LEVEL_CRITICAL,
> -			"Method_BCLBatteryNotInList",
> -			"brightness level on battery (%" PRIu64
> -			") is not in brightness levels.",
> -			obj->Package.Elements[1].Integer.Value);
> -	}
> -
>  	fwts_log_info(fw, "Brightness levels for %s:" ,name);
>  	fwts_log_info_verbatim(fw, "  Level on full power   : %" PRIu64,
>  		(uint64_t)obj->Package.Elements[0].Integer.Value);
> @@ -5847,6 +5811,44 @@ static void method_test_BCL_return(
>  		free(str);
>  	}
>  
> +	if (!access("/sys/class/backlight/acpi_video0", R_OK)) {
> +		matching_levels = false;
> +		for (i = 2; i < obj->Package.Count; i++) {
> +			if (obj->Package.Elements[0].Integer.Value ==
> +			    obj->Package.Elements[i].Integer.Value) {
> +				matching_levels = true;
> +				break;
> +			}
> +		}
> +
> +		if (!matching_levels) {
> +			failed = true;
> +			fwts_failed(fw, LOG_LEVEL_CRITICAL,
> +				"Method_BCLFullNotInList",
> +				"brightness level on full power (%" PRIu64
> +				") is not in brightness levels.",
> +				obj->Package.Elements[0].Integer.Value);
> +		}
> +
> +		matching_levels = false;
> +		for (i = 2; i < obj->Package.Count; i++) {
> +			if (obj->Package.Elements[1].Integer.Value ==
> +			    obj->Package.Elements[i].Integer.Value) {
> +				matching_levels = true;
> +				break;
> +			}
> +		}
> +
> +		if (!matching_levels) {
> +			failed = true;
> +			fwts_failed(fw, LOG_LEVEL_CRITICAL,
> +				"Method_BCLBatteryNotInList",
> +				"brightness level on battery (%" PRIu64
> +				") is not in brightness levels.",
> +				obj->Package.Elements[1].Integer.Value);
> +		}
> +	}
> +
>  	if (failed)
>  		fwts_advice(fw,
>  			"%s seems to be "


Acked-by: Ivan Hu <ivan.hu at canonical.com>


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