On Fri, Oct 30, 2020 at 11:50:47AM -0700, Dave Jiang wrote: > .../ABI/stable/sysfs-driver-dma-idxd | 6 + > Documentation/driver-api/vfio/mdev-idxd.rst | 404 ++++++ > MAINTAINERS | 1 + > drivers/dma/Kconfig | 9 + > drivers/dma/idxd/Makefile | 2 + > drivers/dma/idxd/cdev.c | 6 +- > drivers/dma/idxd/device.c | 294 ++++- > drivers/dma/idxd/idxd.h | 67 +- > drivers/dma/idxd/init.c | 86 ++ > drivers/dma/idxd/irq.c | 6 +- > drivers/dma/idxd/mdev.c | 1121 +++++++++++++++++ > drivers/dma/idxd/mdev.h | 116 ++ Again, a subsytem driver belongs in the directory hierarchy of the subsystem, not in other random places. All this mdev stuff belongs under drivers/vfio Jason