Re: [ibm-acpi-devel] [PATCH] platform/x86: thinkpad_acpi: fix kernel-doc warnings

[Randy Dunlap]

Hi Mark,

On 12/6/23 07:30, Mark Pearson wrote:
> Hi Randy
> 
> On Wed, Dec 6, 2023, at 1:01 AM, Randy Dunlap wrote:
>> Add a function's return description and don't misuse "/**" for
>> non-kernel-doc comments to prevent warnings from scripts/kernel-doc.
>>
>> thinkpad_acpi.c:523: warning: No description found for return value of 
>> 'tpacpi_check_quirks'
>> thinkpad_acpi.c:9307: warning: This comment starts with '/**', but 
>> isn't a kernel-doc comment. Refer Documentation/doc-guide/kernel-doc.rst
>> thinkpad_acpi.c:9307: warning: missing initial short description on 
>> line:
>>  * This evaluates a ACPI method call specific to the battery
>>
>> Signed-off-by: Randy Dunlap <rdunlap@xxxxxxxxxxxxx>
>> Cc: Henrique de Moraes Holschuh <hmh@xxxxxxxxxx>
>> Cc: Hans de Goede <hdegoede@xxxxxxxxxx>
>> Cc: "Ilpo Järvinen" <ilpo.jarvinen@xxxxxxxxxxxxxxx>
>> CC: ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
>> CC: platform-driver-x86@xxxxxxxxxxxxxxx
>> ---
>>  drivers/platform/x86/thinkpad_acpi.c |    6 +++---
>>  1 file changed, 3 insertions(+), 3 deletions(-)
>>
>> diff -- a/drivers/platform/x86/thinkpad_acpi.c 
>> b/drivers/platform/x86/thinkpad_acpi.c
>> --- a/drivers/platform/x86/thinkpad_acpi.c
>> +++ b/drivers/platform/x86/thinkpad_acpi.c
>> @@ -512,10 +512,10 @@ struct tpacpi_quirk {
>>   * Iterates over a quirks list until one is found that matches the
>>   * ThinkPad's vendor, BIOS and EC model.
>>   *
>> - * Returns 0 if nothing matches, otherwise returns the quirks field of
>> + * Returns: %0 if nothing matches, otherwise returns the quirks field 
> 
> Just being nosy - what does %0 do?
> I assume it helps with the return value but was intrigued how it is used and where

It causes the output to be formatted as a CONSTANT (probably monospaced font,
but no guarantees on that).

> 
>> of
>>   * the matching &struct tpacpi_quirk entry.
>>   *
>> - * The match criteria is: vendor, ec and bios much match.
>> + * The match criteria is: vendor, ec and bios must match.
> I can't for the life of me see what is different here. What am I missing? 

s/much/must/

> 
>>   */
>>  static unsigned long __init tpacpi_check_quirks(
>>  			const struct tpacpi_quirk *qlist,
>> @@ -9303,7 +9303,7 @@ static struct tpacpi_battery_driver_data
>>
>>  /* ACPI helpers/functions/probes */
>>
>> -/**
>> +/*
>>   * This evaluates a ACPI method call specific to the battery
>>   * ACPI extension. The specifics are that an error is marked
>>   * in the 32rd bit of the response, so we just check that here.
>>
>>
>> _______________________________________________
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>> ibm-acpi-devel@xxxxxxxxxxxxxxxxxxxxx
>> https://lists.sourceforge.net/lists/listinfo/ibm-acpi-devel
> 
> Thanks
> Mark

-- 
~Randy