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 @@ -132,6 +132,30 @@ static void *of_get_mac_address_mtd(stru
   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 = of_find_property(np, "mac-address", NULL);
  12 +       if (prop)
  13 +               kfree(prop);
  14 +
  15 +       prop = kzalloc(sizeof(*prop), GFP_KERNEL);
  16 +       if (!prop)
  17 +               return 0;
  18 +
  19 +       prop->name = "mac-address";
  20 +       prop->length = ETH_ALEN;
  21 +       prop->value = kmemdup(addr, ETH_ALEN, GFP_KERNEL);
  22 +       if (!prop->value || of_add_property(np, prop))
  23 +               goto free;
  24 +
  25 +       return 0;
  26 +free:
  27 +       kfree(prop->value);
  28 +       kfree(prop);
  29 +       return -ENOMEM;
  30 +}
  31
  32  /**
  33   * Search the device tree for the best MAC address to use.  'mac-address' is
  34 @@ -205,6 +232,7 @@ found:
  35         if (!of_property_read_u32(np, "mac-address-increment", &mac_inc))
  36                 addr[inc_idx] += mac_inc;
  37
  38 +       of_add_mac_address(np, addr);
  39         return ret;
  40  }
  41  EXPORT_SYMBOL(of_get_mac_address);