+++ /dev/null
-From: David Bauer <mail@david-bauer.net>
-Subject: of/net: Add MAC address to of tree
-
-The label-mac logic relies on the mac-address property of a netdev
-devices of-node. However, the mac address can also be stored as a
-different property or read from e.g. an mtd device.
-
-Create this node when reading a mac-address from OF if it does not
-already exist and copy the mac-address used for the device to this
-property. This way, the MAC address can be accessed using procfs.
-
-Submitted-by: David Bauer <mail@david-bauer.net>
----
- drivers/of/of_net.c | 22 ++++++++++++++
- 1 files changed, 22 insertions(+)
-
---- a/drivers/of/of_net.c
-+++ b/drivers/of/of_net.c
-@@ -95,6 +95,27 @@ static int of_get_mac_addr_nvmem(struct
- return 0;
- }
-
-+static int of_add_mac_address(struct device_node *np, u8* addr)
-+{
-+ struct property *prop;
-+
-+ prop = kzalloc(sizeof(*prop), GFP_KERNEL);
-+ if (!prop)
-+ return -ENOMEM;
-+
-+ prop->name = "mac-address";
-+ prop->length = ETH_ALEN;
-+ prop->value = kmemdup(addr, ETH_ALEN, GFP_KERNEL);
-+ if (!prop->value || of_update_property(np, prop))
-+ goto free;
-+
-+ return 0;
-+free:
-+ kfree(prop->value);
-+ kfree(prop);
-+ return -ENOMEM;
-+}
-+
- /**
- * Search the device tree for the best MAC address to use. 'mac-address' is
- * checked first, because that is supposed to contain to "most recent" MAC
-@@ -171,6 +192,7 @@ found:
- addr[5] = (mac_val >> 0) & 0xff;
- }
-
-+ of_add_mac_address(np, addr);
- return ret;
- }
- EXPORT_SYMBOL(of_get_mac_address);