netdev - Re: [PATCH v2 02/16] ACPI: property: Use ACPI functions in acpi_graph_get_next

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Message-ID: <20250924092945.GB28073@pendragon.ideasonboard.com>
Date: Wed, 24 Sep 2025 12:29:45 +0300
From: Laurent Pinchart <laurent.pinchart@...asonboard.com>
To: Sakari Ailus <sakari.ailus@...ux.intel.com>
Cc: linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
	linux-input@...r.kernel.org, linux-leds@...r.kernel.org,
	linux-media@...r.kernel.org, netdev@...r.kernel.org,
	linux-spi@...r.kernel.org, "Rafael J. Wysocki" <rafael@...nel.org>,
	Len Brown <lenb@...nel.org>,
	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Danilo Krummrich <dakr@...nel.org>,
	Andy Shevchenko <andriy.shevchenko@...ux.intel.com>,
	Daniel Scally <djrscally@...il.com>,
	Heikki Krogerus <heikki.krogerus@...ux.intel.com>,
	Javier Carrasco <javier.carrasco@...fvision.net>,
	Dmitry Torokhov <dmitry.torokhov@...il.com>,
	Lee Jones <lee@...nel.org>, Pavel Machek <pavel@...nel.org>,
	Matthias Fend <matthias.fend@...end.at>,
	Chanwoo Choi <cw00.choi@...sung.com>,
	Krzysztof Kozlowski <krzk@...nel.org>,
	Paul Elder <paul.elder@...asonboard.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Horatiu Vultur <horatiu.vultur@...rochip.com>,
	UNGLinuxDriver@...rochip.com, Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Mark Brown <broonie@...nel.org>,
	Thomas Gleixner <tglx@...utronix.de>,
	Ingo Molnar <mingo@...nel.org>,
	Jonathan Cameron <Jonathan.Cameron@...wei.com>
Subject: Re: [PATCH v2 02/16] ACPI: property: Use ACPI functions in
 acpi_graph_get_next_endpoint() only

On Wed, Sep 24, 2025 at 10:45:48AM +0300, Sakari Ailus wrote:
> Calling fwnode_get_next_child_node() in ACPI implementation of the fwnode
> property API is somewhat problematic as the latter is used in the
> impelementation of the former. Instead of using
> fwnode_get_next_child_node() in acpi_graph_get_next_endpoint(), call
> acpi_get_next_subnode() directly instead.
> 
> Signed-off-by: Sakari Ailus <sakari.ailus@...ux.intel.com>

Reviewed-by: Laurent Pinchart <laurent.pinchart+renesas@...asonboard.com>

> ---
>  drivers/acpi/property.c | 8 ++++----
>  1 file changed, 4 insertions(+), 4 deletions(-)
> 
> diff --git a/drivers/acpi/property.c b/drivers/acpi/property.c
> index 5435628c67e7..3e85900080ac 100644
> --- a/drivers/acpi/property.c
> +++ b/drivers/acpi/property.c
> @@ -1381,7 +1381,7 @@ static struct fwnode_handle *acpi_graph_get_next_endpoint(
>  
>  	if (!prev) {
>  		do {
> -			port = fwnode_get_next_child_node(fwnode, port);
> +			port = acpi_get_next_subnode(fwnode, port);
>  			/*
>  			 * The names of the port nodes begin with "port@"
>  			 * followed by the number of the port node and they also
> @@ -1399,13 +1399,13 @@ static struct fwnode_handle *acpi_graph_get_next_endpoint(
>  	if (!port)
>  		return NULL;
>  
> -	endpoint = fwnode_get_next_child_node(port, prev);
> +	endpoint = acpi_get_next_subnode(port, prev);
>  	while (!endpoint) {
> -		port = fwnode_get_next_child_node(fwnode, port);
> +		port = acpi_get_next_subnode(fwnode, port);
>  		if (!port)
>  			break;
>  		if (is_acpi_graph_node(port, "port"))
> -			endpoint = fwnode_get_next_child_node(port, NULL);
> +			endpoint = acpi_get_next_subnode(port, NULL);
>  	}
>  
>  	/*

-- 
Regards,

Laurent Pinchart