[PATCH 3/8] base: soc: export soc_device_get_machine()

[Danilo Krummrich]

On Mon Jan 19, 2026 at 11:40 AM CET, Bartosz Golaszewski wrote:
> -static void soc_device_get_machine(struct soc_device_attribute *soc_dev_attr)
> +int soc_device_get_machine(struct soc_device_attribute *soc_dev_attr)
>  {
> -	struct device_node *np;
> -
>  	if (soc_dev_attr->machine)
> -		return;
> +		return -EBUSY;
> +
> +	struct device_node *np __free(device_node) = of_find_node_by_path("/");
> +	if (!np)
> +		return -ENOENT;

This should never fail at this point, no? Also, can't we just use of_root?

>  
> -	np = of_find_node_by_path("/");
> -	of_property_read_string(np, "model", &soc_dev_attr->machine);
> -	of_node_put(np);
> +	return of_property_read_string(np, "model", &soc_dev_attr->machine);
>  }
> +EXPORT_SYMBOL_GPL(soc_device_get_machine);

If we want to export this, we shouldn't reuse the existing name, which is
misleading.

soc_device_get_machine() reads as if we return a reference count of something.
Additionally, it operates on struct soc_device_attribute instead of struct
soc_device, where the name suggests the latter.

Instead this should be soc_device_attribute_read_machine() or if we want a
shorter name, just soc_attr_read_machine().