On Wed, Jun 08, 2011 at 01:05:57PM -0700, Dan Williams wrote: > Even if that were the case it would be same situation that the scsi device > driver reports maximum parameters, but the subsystem opts for > something tighter. Whether the maximal parameters come from the scsi > device or the dma channel is moot. Except for the small issue that many DMA-engine using devices do not have _any_ DMA capabilities of their own, which means they don't have anything to put in their own struct device's DMA parameters. We can't go around making up random insane parameters in the hope that they'll exceed whatever DMA-engine is being used with the device - that's a hack not a solution. -- To unsubscribe from this list: send the line "unsubscribe linux-mmc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html