On Fri, 15 Feb 2019 16:59:33 -0500 Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote: > On 2/15/19 4:11 AM, Cornelia Huck wrote: > > On Thu, 14 Feb 2019 13:30:59 -0500 > > Tony Krowiak <akrowiak@xxxxxxxxxxxxx> wrote: > > > >> On 2/14/19 12:36 PM, Pierre Morel wrote: > >>> On 14/02/2019 17:57, Cornelia Huck wrote: > >>>> (And reading further in the current code, it seems we clear that > >>>> structure _after_ the matrix device had been setup, so how can that > >>>> even work? Where am I confused?) > >>> > >>> On device_register there were no bus, so the core just do not look for a > >>> driver and this field was nor tested nor overwritten. > > > > Hm... so has the callback in driver_for_each_device() in > > vfio_ap_verify_queue_reserved() ever been invoked at all? It seems this > > patch fixes more than just libudev issues... > > It is this patch that rendered the driver_for_each_device() in > vfio_ap_verify_queue_reserved() erroneous. That function gets called > every time an adapter or domain is assigned to the mdev. This patch > introduced the problem with driver_for_each_device(). So, does this function need to be removed or called from another place, then? (It looks like it was dead code before.)