Hi Darren,
2016-08-28 10:56 GMT-06:00 Darren Hart <dvhart@xxxxxxxxxxxxx>:
> On Tue, Aug 16, 2016 at 12:06:16PM -0600, Azael Avalos wrote:
>> Currently the success/error checking logic is intermixed, making the
>> code a bit cumbersome to understand.
>>
>> This patch changes the affected functions to first check for errors
>> and take appropriate actions, then check for the supported features.
>>
>> This patch also separates the error check from the acpi_status and
>> the tci_raw function call error check, as those two are completely
>> unrelated and were nested in if/else statements.
>
> Thanks, this is a good improvement. One questions below...
>
>>
>> Signed-off-by: Azael Avalos <coproscefalo@xxxxxxxxx>
>> ---
>> drivers/platform/x86/toshiba_acpi.c | 222 ++++++++++++++++++++++--------------
>> 1 file changed, 135 insertions(+), 87 deletions(-)
>>
>> diff --git a/drivers/platform/x86/toshiba_acpi.c b/drivers/platform/x86/toshiba_acpi.c
>> index c6fc5cc..2256cf5 100644
>> --- a/drivers/platform/x86/toshiba_acpi.c
>> +++ b/drivers/platform/x86/toshiba_acpi.c
>> @@ -476,10 +476,15 @@ static void toshiba_illumination_available(struct toshiba_acpi_dev *dev)
>>
>> status = tci_raw(dev, in, out);
>> sci_close(dev);
>> - if (ACPI_FAILURE(status))
>> + if (ACPI_FAILURE(status)) {
>> pr_err("ACPI call to query Illumination support failed\n");
>> - else if (out[0] == TOS_SUCCESS)
>> - dev->illumination_supported = 1;
>> + return;
>> + }
>> +
>> + if (out[0] != TOS_SUCCESS)
>
> Does this condition not merit a pr_err message? It reads like an error...
>
> There are several similar situations below which are equally silent. Is this a
> deliberate decision?
This was on purpose, since we are querying for all the supported features,
the kernel log will contain a lot of error strings for not supported features,
as not all laptop models support all of them.
>
> --
> Darren Hart
> Intel Open Source Technology Center
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