BOn Thu, Jun 08, 2017 at 03:25:50PM +0200, Christoph Hellwig wrote: > +static int dmabounce_mapping_error(struct device *dev, dma_addr_t dma_addr) > +{ > + if (dev->archdata.dmabounce) > + return 0;
I'm not convinced that we need this check here: dev->archdata.dmabounce = device_info; set_dma_ops(dev, &dmabounce_ops); There shouldn't be any chance of dev->archdata.dmabounce being NULL if the dmabounce_ops has been set as the current device DMA ops. So I think that test can be killed. -- RMK's Patch system: http://www.armlinux.org.uk/developer/patches/ FTTC broadband for 0.8mile line: currently at 9.6Mbps down 400kbps up according to speedtest.net.