Commit 2e186a2c authored May 15, 2020 by Tobias Waldekranz Committed by David S. Miller May 15, 2020

net: core: recursively find netdev by device node



The assumption that a device node is associated either with the
netdev's device, or the parent of that device, does not hold for all
drivers. E.g. Freescale's DPAA has two layers of platform devices
above the netdev. Instead, recursively walk up the tree from the
netdev, allowing any parent to match against the sought after node.

Signed-off-by: Tobias Waldekranz <tobias@waldekranz.com>
Reviewed-by: Florian Fainelli <f.fainelli@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

parent d00f26b6

net/core/net-sysfs.c

+5 −5

Original line number	Diff line number	Diff line
		@@ -1805,12 +1805,12 @@ static struct class net_class __ro_after_init = {
		#ifdef CONFIG_OF_NET
		static int of_dev_node_match(struct device dev, const void data)
		{
		int ret = 0;

		if (dev->parent)
		ret = dev->parent->of_node == data;
		for (; dev; dev = dev->parent) {
		if (dev->of_node == data)
		return 1;
		}

		return ret == 0 ? dev->of_node == data : ret;
		return 0;
		}

		/*

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