linux-kernel - Re: [PATCH v3 2/7] ACPI: bus: implement for_each_acpi_dev

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Message-ID: <Z1isdXr_o-6ZhDMh@kekkonen.localdomain>
Date: Tue, 10 Dec 2024 21:02:45 +0000
From: Sakari Ailus <sakari.ailus@...ux.intel.com>
To: Ricardo Ribalda <ribalda@...omium.org>
Cc: Mauro Carvalho Chehab <mchehab@...nel.org>,
	"Rafael J. Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>, Robert Moore <robert.moore@...el.com>,
	"Rafael J. Wysocki" <rafael.j.wysocki@...el.com>,
	Dan Carpenter <dan.carpenter@...aro.org>,
	linux-media@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org, acpica-devel@...ts.linux.dev
Subject: Re: [PATCH v3 2/7] ACPI: bus: implement for_each_acpi_dev_match when
 !ACPI

Hi Ricardo,

On Tue, Dec 10, 2024 at 07:55:59PM +0000, Ricardo Ribalda wrote:
> Provide an implementation of for_each_acpi_dev_match that can be used
> when CONFIG_ACPI is not set.
> 
> The condition `false && hid && uid && hrv` is used to avoid "variable
> not used" warnings.
> 
> Signed-off-by: Ricardo Ribalda <ribalda@...omium.org>
> ---
>  include/acpi/acpi_bus.h | 3 +++
>  1 file changed, 3 insertions(+)
> 
> diff --git a/include/acpi/acpi_bus.h b/include/acpi/acpi_bus.h
> index b2e377b7f337..eaafca41cf02 100644
> --- a/include/acpi/acpi_bus.h
> +++ b/include/acpi/acpi_bus.h
> @@ -1003,6 +1003,9 @@ static inline int unregister_acpi_bus_type(void *bus) { return 0; }
>  
>  static inline int acpi_wait_for_acpi_ipmi(void) { return 0; }
>  
> +#define for_each_acpi_dev_match(adev, hid, uid, hrv)			\
> +	for (adev = NULL; false && (hid) && (uid) && (hrv);)

There should be a space after the semicolon. I guess this might depend on
who you ask. Either way,

Reviewed-by: Sakari Ailus <sakari.ailus@...ux.intel.com>

> +
>  #endif				/* CONFIG_ACPI */
>  
>  #endif /*__ACPI_BUS_H__*/
> 

-- 
Regards,

Sakari Ailus