14 #define NODE_MAC_ADDR_OCTET(node, n) DT_PROP_BY_IDX(node, local_mac_address, n)  argument
17 #define NODE_MAC_ADDR_NULL(node) \  argument
18 	((NODE_MAC_ADDR_OCTET(node, 0) == 0) && \
19 	 (NODE_MAC_ADDR_OCTET(node, 1) == 0) && \
20 	 (NODE_MAC_ADDR_OCTET(node, 2) == 0) && \
21 	 (NODE_MAC_ADDR_OCTET(node, 3) == 0) && \
22 	 (NODE_MAC_ADDR_OCTET(node, 4) == 0) && \
23 	 (NODE_MAC_ADDR_OCTET(node, 5) == 0))
25 /* Given a device tree node for an ethernet controller will
29 #define NODE_HAS_VALID_MAC_ADDR(node) \  argument
30 	UTIL_AND(DT_NODE_HAS_PROP(node, local_mac_address),\
31 			(!NODE_MAC_ADDR_NULL(node)))