65 	const void *mac;  in of_get_mac_address_nvmem()  local
78 	cell = of_nvmem_cell_get(np, "mac-address");  in of_get_mac_address_nvmem()
82 	mac = nvmem_cell_read(cell, &len);  in of_get_mac_address_nvmem()
85 	if (IS_ERR(mac))  in of_get_mac_address_nvmem()
86 		return PTR_ERR(mac);  in of_get_mac_address_nvmem()
88 	if (len != ETH_ALEN || !is_valid_ether_addr(mac)) {  in of_get_mac_address_nvmem()
89 		kfree(mac);  in of_get_mac_address_nvmem()
93 	memcpy(addr, mac, ETH_ALEN);  in of_get_mac_address_nvmem()
94 	kfree(mac);  in of_get_mac_address_nvmem()
105  * Search the device tree for the best MAC address to use.  'mac-address' is
106  * checked first, because that is supposed to contain to "most recent" MAC
107  * address. If that isn't set, then 'local-mac-address' is checked next,
110  * of the above isn't set, then try to get MAC address from nvmem cell named
111  * 'mac-address'.
115  * MAC address.
117  * All-zero MAC addresses are rejected, because those could be properties that
119  * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
120  * addresses.  Some older U-Boots only initialized 'local-mac-address'.  In
121  * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
133 	ret = of_get_mac_addr(np, "mac-address", addr);  in of_get_mac_address()
137 	ret = of_get_mac_addr(np, "local-mac-address", addr);  in of_get_mac_address()
154  * Search the device tree for the best MAC address to use.