target/linux/generic/pending-5.10/683-of_net-add-mac-address-to-of-tree.patch

   1 --- a/drivers/of/of_net.c
   2 +++ b/drivers/of/of_net.c
   3 @@ -141,6 +141,26 @@ static int of_get_mac_address_mtd(struct
   4         return -EINVAL;
   5  }
   6
   7 +static int of_add_mac_address(struct device_node *np, u8* addr)
   8 +{
   9 +       struct property *prop;
  10 +
  11 +       prop = kzalloc(sizeof(*prop), GFP_KERNEL);
  12 +       if (!prop)
  13 +               return -ENOMEM;
  14 +
  15 +       prop->name = "mac-address";
  16 +       prop->length = ETH_ALEN;
  17 +       prop->value = kmemdup(addr, ETH_ALEN, GFP_KERNEL);
  18 +       if (!prop->value || of_update_property(np, prop))
  19 +               goto free;
  20 +
  21 +       return 0;
  22 +free:
  23 +       kfree(prop->value);
  24 +       kfree(prop);
  25 +       return -ENOMEM;
  26 +}
  27
  28  /**
  29   * Search the device tree for the best MAC address to use.  'mac-address' is
  30 @@ -216,6 +236,7 @@ found:
  31         if (!of_property_read_u32(np, "mac-address-increment", &mac_inc))
  32                 addr[inc_idx] += mac_inc;
  33
  34 +       of_add_mac_address(np, addr);
  35         return ret;
  36  }
  37  EXPORT_SYMBOL(of_get_mac_address);