linux-kernel - Re: [PATCH v1 4/4] bus: hisi_lpc: Don't guard ACPI IDs with ACPI

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Message-ID: <f85d13df-b3b9-5cde-6f4c-a68507cedee9@huawei.com>
Date:   Tue, 5 Jul 2022 15:51:56 +0100
From:   John Garry <john.garry@...wei.com>
To:     Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
        "Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
        <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH v1 4/4] bus: hisi_lpc: Don't guard ACPI IDs with
 ACPI_PTR()

On 05/07/2022 12:43, Andy Shevchenko wrote:
> The OF is not guarded neither ACPI needs.

This doesn't read well.

> The IDs do not depend
> to the configuration. Hence drop ACPI_PTR() from the code and
> move ID table closer to its user.

Do you need to explicitly include mod_devicetable.h, which has the 
definition of acpi_device_id?

I saw a similar change for another driver and it was claimed that 
including mod_devicetable.h was required.

Thanks,
John

> 
> Signed-off-by: Andy Shevchenko <andriy.shevchenko@...ux.intel.com>
> ---
>   drivers/bus/hisi_lpc.c | 12 ++++++------
>   1 file changed, 6 insertions(+), 6 deletions(-)
> 
> diff --git a/drivers/bus/hisi_lpc.c b/drivers/bus/hisi_lpc.c
> index a6513a571d7b..74f4448bff9d 100644
> --- a/drivers/bus/hisi_lpc.c
> +++ b/drivers/bus/hisi_lpc.c
> @@ -589,11 +589,6 @@ static int hisi_lpc_acpi_probe(struct device *hostdev)
>   
>   	return ret;
>   }
> -
> -static const struct acpi_device_id hisi_lpc_acpi_match[] = {
> -	{"HISI0191"},
> -	{}
> -};
>   #else
>   static int hisi_lpc_acpi_probe(struct device *dev)
>   {
> @@ -688,11 +683,16 @@ static const struct of_device_id hisi_lpc_of_match[] = {
>   	{}
>   };
>   
> +static const struct acpi_device_id hisi_lpc_acpi_match[] = {
> +	{"HISI0191"},
> +	{}
> +};
> +
>   static struct platform_driver hisi_lpc_driver = {
>   	.driver = {
>   		.name           = DRV_NAME,
>   		.of_match_table = hisi_lpc_of_match,
> -		.acpi_match_table = ACPI_PTR(hisi_lpc_acpi_match),
> +		.acpi_match_table = hisi_lpc_acpi_match,
>   	},
>   	.probe = hisi_lpc_probe,
>   	.remove = hisi_lpc_remove,