linux-kernel - Re: [Linaro-acpi] [RFC PATCH 2/2] ata: ahci_platform: Add ACPI

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Message-ID: <54946CBB.4050108@amd.com>
Date:	Fri, 19 Dec 2014 12:21:47 -0600
From:	Suravee Suthikulanit <suravee.suthikulpanit@....com>
To:	Arnd Bergmann <arnd@...db.de>, <linaro-acpi@...ts.linaro.org>
CC:	<rjw@...ysocki.net>, <lenb@...nel.org>, <hdegoede@...hat.com>,
	<tj@...nel.org>, <mjg59@...f.ucam.org>,
	<linux-acpi@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<linux-ide@...r.kernel.org>
Subject: Re: [Linaro-acpi] [RFC PATCH 2/2] ata: ahci_platform: Add ACPI _CLS
 matching

On 12/18/2014 3:17 AM, Arnd Bergmann wrote:
> On Wednesday 17 December 2014 17:16:35 Suravee Suthikulpanit wrote:
>> +#ifdef CONFIG_ATA_ACPI
>> +#include <linux/acpi.h>
>> +#endif
>>   #include "ahci.h"
>>
>>   static const struct ata_port_info ahci_port_info = {
>> @@ -71,6 +74,10 @@ static const struct of_device_id ahci_of_match[] = {
>>   };
>>   MODULE_DEVICE_TABLE(of, ahci_of_match);
>>
>> +#ifdef CONFIG_ATA_ACPI
>> +static const struct acpi_device_cls ahci_cls = {0x01, 0x06, 0x01};
>> +#endif
>> +
>>   static struct platform_driver ahci_driver = {
>>          .probe = ahci_probe,
>>          .remove = ata_platform_remove_one,
>> @@ -78,6 +85,9 @@ static struct platform_driver ahci_driver = {
>>                  .name = "ahci",
>>                  .owner = THIS_MODULE,
>>                  .of_match_table = ahci_of_match,
>> +#ifdef CONFIG_ATA_ACPI
>> +               .acpi_cls = &ahci_cls,
>> +#endif
>>                  .pm = &ahci_pm_ops,
>>
>
> It would be better to leave out the various #ifdef here, in particular the
> one around the header file inclusion.
>
> 	Arnd
>

Right. I'll get rid of them. Also, I noticed that I should have declared 
acpi_match_device_cls() in include/linux/acpi.h as "inline" for when 
building w/o ACPI to avoid warning messages.

Thanks,

Suravee

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