On Mon, Jun 20, 2022 at 05:02:15PM +0200, Marcin Wojtas wrote:

fixed-link PHYs API is used by DSA and a number of drivers
and was depending on of_. Switch to fwnode_ so to make it
hardware description agnostic and allow to be used in ACPI
world as well.

...

+bool fwnode_phy_is_fixed_link(struct fwnode_handle *fwnode)
+{
+	struct fwnode_handle *fixed_link_node;
+	const char *managed;
+	int len;
+
+	/* New binding */
+	fixed_link_node = fwnode_get_named_child_node(fwnode, "fixed-link");
+	if (fixed_link_node) {
+		fwnode_handle_put(fixed_link_node);
+		return true;
+	}
+
+	if (fwnode_property_read_string(fwnode, "managed", &managed) == 0 &&
+	    strcmp(managed, "auto") != 0)
+		return true;
+
+	/* Old binding */
+	len = fwnode_property_read_u32_array(fwnode, "fixed-link", NULL, 0);

fwnode_property_count_u32()

+	if (len == (5 * sizeof(u32)))

I'm not sure how to interpret this. len will return a count of u32 elements.
What does the sizeof(u32) mean here?

+		return true;
+
+	return false;
+}

-- 
With Best Regards,
Andy Shevchenko