On Wed, Jan 10, 2018 at 12:16:15PM +0000, Robin Murphy wrote: > On 10/01/18 08:09, Christoph Hellwig wrote: >> To properly reject too small DMA masks based on the addressability of the >> bounce buffer. > > I reckon this is self-evident enough that it should simply be squashed into > the previous patch. x86 didn't wire it up before, so I want a clear blaimpoint for this change instead of mixing it up.