linuxkpi_dma_sync
void linuxkpi_dma_sync(struct device *, dma_addr_t, size_t, bus_dmasync_op_t);
linuxkpi_dma_sync(dev, dma, size, op);
linuxkpi_dma_sync(dev, dma, size, op);
linuxkpi_dma_sync(dev, dma, size, op);