64 	const void *mac;  in of_get_mac_addr_nvmem()  local
77 	cell = of_nvmem_cell_get(np, "mac-address");  in of_get_mac_addr_nvmem()
81 	mac = nvmem_cell_read(cell, &len);  in of_get_mac_addr_nvmem()
84 	if (IS_ERR(mac))  in of_get_mac_addr_nvmem()
85 		return PTR_ERR(mac);  in of_get_mac_addr_nvmem()
87 	if (len != ETH_ALEN || !is_valid_ether_addr(mac)) {  in of_get_mac_addr_nvmem()
88 		kfree(mac);  in of_get_mac_addr_nvmem()
92 	memcpy(addr, mac, ETH_ALEN);  in of_get_mac_addr_nvmem()
93 	kfree(mac);  in of_get_mac_addr_nvmem()
103  * Search the device tree for the best MAC address to use.  'mac-address' is
104  * checked first, because that is supposed to contain to "most recent" MAC
105  * address. If that isn't set, then 'local-mac-address' is checked next,
108  * of the above isn't set, then try to get MAC address from nvmem cell named
109  * 'mac-address'.
113  * MAC address.
115  * All-zero MAC addresses are rejected, because those could be properties that
117  * DTS could define 'mac-address' and 'local-mac-address', with zero MAC
118  * addresses.  Some older U-Boots only initialized 'local-mac-address'.  In
119  * this case, the real MAC is in 'local-mac-address', and 'mac-address' exists
131 	ret = of_get_mac_addr(np, "mac-address", addr);  in of_get_mac_address()
135 	ret = of_get_mac_addr(np, "local-mac-address", addr);  in of_get_mac_address()
152  * Search the device tree for the best MAC address to use.