knav_dma_open_channel
tx_pipe->dma_channel = knav_dma_open_channel(dev,
netcp->rx_channel = knav_dma_open_channel(netcp->netcp_device->device,
EXPORT_SYMBOL_GPL(knav_dma_open_channel);
void *knav_dma_open_channel(struct device *dev, const char *name,