Function fdt_move 

pub unsafe extern "C" fn fdt_move(
    fdt: *const c_void,
    buf: *mut c_void,
    bufsize: c_int,
) -> c_int

fdt_move - move a device tree around in memory @fdt: pointer to the device tree to move @buf: pointer to memory where the device is to be moved @bufsize: size of the memory space at buf

fdt_move() relocates, if possible, the device tree blob located at fdt to the buffer at buf of size bufsize. The buffer may overlap with the existing device tree blob at fdt. Therefore, fdt_move(fdt, fdt, fdt_totalsize(fdt)) should always succeed.

returns: 0, on success -FDT_ERR_NOSPACE, bufsize is insufficient to contain the device tree -FDT_ERR_BADMAGIC, -FDT_ERR_BADVERSION, -FDT_ERR_BADSTATE, standard meanings