NAK: [PATCH 1/2] acpi: add tests for _SRT control method

Colin Ian King colin.king at canonical.com
Fri Nov 10 10:37:52 UTC 2017


On 10/11/17 10:17, Alex Hung wrote:
> On 2017-11-10 03:37 PM, Alex Hung wrote:
>> Signed-off-by: Alex Hung <alex.hung at canonical.com>
>> ---
>>   src/acpi/devices/time/time.c            | 43
>> ++++++++++++++++++++++++++++++++-
>>   src/acpi/method/method.c                | 41
>> +++++++++++++++++++++++++++++--
>>   src/lib/include/fwts_acpi_object_eval.h | 15 ++++++++++++
>>   3 files changed, 96 insertions(+), 3 deletions(-)
>>
>> diff --git a/src/acpi/devices/time/time.c b/src/acpi/devices/time/time.c
>> index 8721182..9722330 100644
>> --- a/src/acpi/devices/time/time.c
>> +++ b/src/acpi/devices/time/time.c
>> @@ -147,6 +147,47 @@ static int method_test_GRT(fwts_framework *fw)
>>               "_GRT", NULL, 0, method_test_GRT_return, NULL);
>>   }
>>   +static void method_test_SRT_return(
>> +    fwts_framework *fw,
>> +    char *name,
>> +    ACPI_BUFFER *buf,
>> +    ACPI_OBJECT *obj,
>> +    void *private)
>> +{
>> +    FWTS_UNUSED(private);
>> +
>> +    if (fwts_method_check_type(fw, name, buf, ACPI_TYPE_INTEGER) !=
>> FWTS_OK)
>> +        return;
>> +
>> +    fwts_method_passed_sane_uint64(fw, name, obj->Integer.Value);
>> +}
>> +
>> +static int method_test_SRT(fwts_framework *fw)
>> +{
>> +    uint32_t time_size = sizeof(fwts_acpi_time_buffer);
>> +    fwts_acpi_time_buffer real_time;
>> +    ACPI_OBJECT arg0;
>> +
>> +    real_time.year = 2000;
>> +    real_time.month = 1;
>> +    real_time.day = 1;
>> +    real_time.hour = 0;
>> +    real_time.minute = 0;
>> +    real_time.milliseconds = 1;
>> +    real_time.timezone = 0;
>> +
>> +    arg0.Type = ACPI_TYPE_BUFFER;
>> +    arg0.Buffer.Length = time_size;
>> +    arg0.Buffer.Pointer = (void *)&real_time;
>> +
>> +    if (capability & 0x04)
>> +        return fwts_evaluate_method(fw, METHOD_MANDATORY, &device,
>> +            "_SRT", &arg0, time_size, method_test_SRT_return, NULL);
>> +    else
>> +        return fwts_evaluate_method(fw, METHOD_OPTIONAL, &device,
>> +            "_SRT", &arg0, time_size, method_test_SRT_return, NULL);
>> +}
>> +
>>   static void method_test_GWS_return(
>>       fwts_framework *fw,
>>       char *name,
>> @@ -270,7 +311,7 @@ static int method_test_TIV(fwts_framework *fw)
>>   static fwts_framework_minor_test acpi_time_alarm_tests[] = {
>>       { method_test_GCP, "Test _GCP (Get Capabilities)." },
>>       { method_test_GRT, "Test _GRT (Get Real Time)." },
>> -    /* { method_test_SRT, "Test _SRT (Set Real Time)." }, */
>> +    { method_test_SRT, "Test _SRT (Set Real Time)." },
>>       { method_test_GWS, "Test _GWS (Get Wake Status)." },
>>       { method_test_CWS, "Test _CWS (Clear Wake Status)." },
>>       { method_test_STP, "Test _STP (Set Expired Timer Wake Policy)." },
>> diff --git a/src/acpi/method/method.c b/src/acpi/method/method.c
>> index 509424f..2089294 100644
>> --- a/src/acpi/method/method.c
>> +++ b/src/acpi/method/method.c
>> @@ -213,7 +213,7 @@
>>    * _SLI      N
>>    * _SPD      Y
>>    * _SRS      n/a
>> - * _SRT      n/a
>> + * _SRT      Y
>>    * _SRV      Y
>>    * _SST      Y
>>    * _STA      Y
>> @@ -3720,6 +3720,43 @@ static int method_test_GRT(fwts_framework *fw)
>>           "_GRT", NULL, 0, method_test_GRT_return, NULL);
>>   }
>>   +static void method_test_SRT_return(
>> +    fwts_framework *fw,
>> +    char *name,
>> +    ACPI_BUFFER *buf,
>> +    ACPI_OBJECT *obj,
>> +    void *private)
>> +{
>> +    FWTS_UNUSED(private);
>> +
>> +    if (fwts_method_check_type(fw, name, buf, ACPI_TYPE_INTEGER) !=
>> FWTS_OK)
>> +        return;
>> +
>> +    fwts_method_passed_sane_uint64(fw, name, obj->Integer.Value);
>> +}
>> +
>> +static int method_test_SRT(fwts_framework *fw)
>> +{
>> +    uint32_t time_size = sizeof(fwts_acpi_time_buffer);
>> +    fwts_acpi_time_buffer real_time;
>> +    ACPI_OBJECT arg0;
>> +
>> +    real_time.year = 2000;
>> +    real_time.month = 1;
>> +    real_time.day = 1;
>> +    real_time.hour = 0;
>> +    real_time.minute = 0;
>> +    real_time.milliseconds = 1;
>> +    real_time.timezone = 0;
>> +
>> +    arg0.Type = ACPI_TYPE_BUFFER;
>> +    arg0.Buffer.Length = time_size;
>> +    arg0.Buffer.Pointer = (void *)&real_time;
>> +
>> +    return method_evaluate_method(fw, METHOD_OPTIONAL,
>> +        "_SRT", &arg0, time_size, method_test_SRT_return, NULL);
> 
> Nack this because Coverity Scan reports "Taking address with "&arg0"
> yields a singleton pointer." I will look into it and submit a V2.

I'm not so sure this is a bug per-se, I think this is CoverityScan being
a bit too pedantic.  I suggest double checking this and if it look sane
to you then I'm OK with it. I've already tagged it in CoverityScan to
ignore this particular warning.

> 
> 
>> +}
>> +
>>   static void method_test_GWS_return(
>>       fwts_framework *fw,
>>       char *name,
>> @@ -6084,7 +6121,7 @@ static fwts_framework_minor_test method_tests[] = {
>>       { method_test_GRT, "Test _GRT (Get Real Time)." },
>>       { method_test_GWS, "Test _GWS (Get Wake Status)." },
>>       { method_test_CWS, "Test _CWS (Clear Wake Status)." },
>> -    /* { method_test_SRT, "Test _SRT (Set Real Time)." }, */
>> +    { method_test_SRT, "Test _SRT (Set Real Time)." },
>>       { method_test_STP, "Test _STP (Set Expired Timer Wake Policy)." },
>>       { method_test_STV, "Test _STV (Set Timer Value)." },
>>       { method_test_TIP, "Test _TIP (Expired Timer Wake Policy)." },
>> diff --git a/src/lib/include/fwts_acpi_object_eval.h
>> b/src/lib/include/fwts_acpi_object_eval.h
>> index 17f9a6d..3fa3606 100644
>> --- a/src/lib/include/fwts_acpi_object_eval.h
>> +++ b/src/lib/include/fwts_acpi_object_eval.h
>> @@ -51,6 +51,21 @@ typedef struct {
>>       const char     *name;    /* Field name */
>>   } fwts_package_element;
>>   +/* Time format for ACPI000E (Time and Alarm Device) */
>> +typedef struct {
>> +    uint16_t    year;
>> +    uint8_t        month;
>> +    uint8_t        day;
>> +    uint8_t        hour;
>> +    uint8_t        minute;
>> +    uint8_t        second;
>> +    uint8_t        valid;    // pad1 for _SRT
>> +    uint16_t    milliseconds;
>> +    uint16_t    timezone;
>> +    uint8_t        daylight;
>> +    uint8_t        pad2[3];
>> +} __attribute__ ((packed)) fwts_acpi_time_buffer;
>> +
>>   #define fwts_method_check_type(fw, name, buf, type)             \
>>       fwts_method_check_type__(fw, name, buf, type, #type)
>>  
> 
> 




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