On Thu, Sep 08, 2022 at 11:39:07AM +0200, Eric Auger wrote: > >> I am not totally clear about remaining 'struct device *dev;' in > >> vfio_device struct. I see it used in some places. Is it supposed to > >> disappear at some point? > > > > no, Eric. *dev will not disappear, it stores the dev pointet passed in by > > caller of vfio_init_device(). > > yeah I see but you have device->device.parent = device->dev; IIRC we have a number of these redundancies now, often the drivers store another copy of the dev too. A significant use of dev is for printing things, what should be done here is to create a subsystem wide vfio_warn/etc that takes in the vfio_device, and then print properly from there. Now that we have a struct device all the prints should also include the VFIO struct device name, and then the PCI device perhaps in brackets. Jason