IOMAP_DIO_COMP_WORK
dio->flags |= IOMAP_DIO_COMP_WORK;
!(dio->flags & IOMAP_DIO_COMP_WORK)) {
dio->flags |= IOMAP_DIO_COMP_WORK;
if (dio->flags & IOMAP_DIO_COMP_WORK) {
dio->flags &= ~IOMAP_DIO_COMP_WORK;
dio->flags |= IOMAP_DIO_COMP_WORK;
if (dio->flags & IOMAP_DIO_COMP_WORK)
dio->flags |= IOMAP_DIO_COMP_WORK;
dio->flags |= IOMAP_DIO_COMP_WORK;