On Wed, Nov 07, 2018 at 12:56:49PM +0000, Robin Murphy wrote: > On 2018-11-07 8:03 am, Christoph Hellwig wrote: > > On Tue, Nov 06, 2018 at 11:54:15AM +0000, Robin Murphy wrote: > > > of_dma_configure() was *supposed* to be following the same logic as > > > acpi_dma_configure() and only setting bus_dma_mask if some range was > > > specified by the firmware. However, it seems that subtlety got lost in > > > the process of fitting it into the differently-shaped control flow, and > > > as a result the force_dma==true case ends up always setting the bus mask > > > to the 32-bit default, which is not what anyone wants. > > > > > > Make sure we only touch it if the DT actually said so. > > > > This looks good, but I think it could really use a comment as the use > > of ret all the way down the function isn't exactly obvious. > > Fair point. > > > Let me now if you want this picked up through the OF or DMA trees. > > I don't mind either way; I figure I'll wait a bit longer to see if Rob has > any preference, then resend with the comment and the tags picked up so it > can hopefully make rc2. I have other fixes to send, so I can take it. Rob
