I noticed drivers/infiniband/hw/hfi1 got moved from staging to drivers/ for v4.7. It does a bunch of grubbing around in PCIe ASPM configuration, e.g., see drivers/infiniband/hw/hfi1/aspm.h.
I know there have been lots of ASPM issues, both hardware problems and Linux kernel problems, but it is *supposed* to be manageable by the core, without special driver support. What's the justification for having to do this in the hfi1 driver? Bjorn
