while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U", unformat_vlib_pci_addr, &args.addr))
while (unformat_check_input (line_input) != UNFORMAT_END_OF_INPUT)
{
if (unformat (line_input, "%U", unformat_vlib_pci_addr, &args.addr))