enetc_msg_cmd_set_primary_mac
struct enetc_msg_cmd_set_primary_mac *cmd;
cmd = (struct enetc_msg_cmd_set_primary_mac *)msg->vaddr;
struct enetc_msg_cmd_set_primary_mac *cmd;
msg.size = ALIGN(sizeof(struct enetc_msg_cmd_set_primary_mac), 64);
cmd = (struct enetc_msg_cmd_set_primary_mac *)msg.vaddr;