On Thu, Oct 06, 2016 at 04:33:36PM -0700, Tushar Dave wrote:With change made by patch 6/6, dma_addr_t is always 64-bit, no matter if
ATU 64bit addressing allows PCIe devices with 64bit DMA capabilities
to use ATU for 64bit DMA.
Any chance to always enable this? Last I checked sparc was the only
architecture still using a 32-bit dma_addr_t, leading to some fun
breakage in things like the software RDMA drivers that abuse it to
store a kernel pointer..