Re: [PATCH v4 19/23] ata: ahci: Add DWC AHCI SATA controller support

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On 6/18/22 05:36, Serge Semin wrote:
> On Thu, Jun 16, 2022 at 09:31:30AM +0900, Damien Le Moal wrote:
>> On 2022/06/16 6:30, Serge Semin wrote:
>>> On Fri, Jun 10, 2022 at 04:34:13PM -0700, Randy Dunlap wrote:
>>>> Hi Serge,
>>>>
>>>> On 6/10/22 14:58, Serge Semin wrote:
>>>>> On Fri, Jun 10, 2022 at 09:34:46AM -0700, Randy Dunlap wrote:
>>>>>> Hi--
>>>>>
>>>>> Hi Randy
>>>>>
>>>>>>
>>>>>> On 6/10/22 01:17, Serge Semin wrote:
>>>>>>> diff --git a/drivers/ata/Kconfig b/drivers/ata/Kconfig
>>>>>>> index bb45a9c00514..95e0e022b5bb 100644
>>>>>>> --- a/drivers/ata/Kconfig
>>>>>>> +++ b/drivers/ata/Kconfig
>>>>>>> @@ -176,6 +176,16 @@ config AHCI_DM816
>>>>>>>  
>>>>>>>  	  If unsure, say N.
>>>>>>>  
>>>>>>> +config AHCI_DWC
>>>>>>> +	tristate "Synopsys DWC AHCI SATA support"
>>>>>>> +	select SATA_HOST
>>>>>>> +	default SATA_AHCI_PLATFORM
>>>>>>
>>>>>
>>>>>> I don't think this needs to default to SATA_AHCI_PLATFORM.
>>>>>> It might build a driver that isn't needed.
>>>>>> And it's incompatible with "If unsure, say N."
>>>>>
>>>>> Basically you are right, but this particular setting is connected with
>>>>> the modification I've done in the drivers/ata/ahci_platform.c driver
>>>>> in the framework of this commit. I've moved the "snps,spear-ahci" and
>>>>> "snps,dwc-ahci" compatible devices support to the new driver. Thus
>>>>> should I omit the SATA_AHCI_PLATFORM dependency their default kernel
>>>>> configs will lack the corresponding controllers support. If it's not a
>>>>> problem and we can rely on the kernel build system ability to ask
>>>>> whether the new config needs to be set/cleared, then I would be very
>>>>> happy to drop the default setting. What do you think?
>>>>
>>>
>>>> I'd prefer to try it like that.
>>>> If it becomes a problem, we can go back to this v4 patch.
>>>
>>> Agreed then (seeing Damien is silent about your comment).
>>
> 
>> I have not thought about it :)
>> I do not use SATA PLATFORM at all, so I am not familiar with its dependencies.
>> Will have a look and do my usual build tests anyway.
> 
> Ok. I'll be waiting for you reply in this regard the before
> re-submitting the next series version.

Please send a fixed-up new version. I will use that to look at builds and
config dependencies.


-- 
Damien Le Moal
Western Digital Research



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