On Wed, 2016-01-20 at 11:46 -0600, Bjorn Helgaas wrote: > > I don't really want to merge things that only exist to enable > out-of-tree development, because (1) they're an extra maintenance > burden for which we get risk without benefit, and (2) we can't see > the out-of-tree code, so it's easy for people to make changes that > accidentally break that code. > > Looking at the patch again, I see that even without the export, > there's no current benefit, This is just a PCI quirk; I'm not sure it should be considered part of the driver code at all. With this patch, even without a Linux driver, we could correctly handle assignment to VM guests (which *might* have a driver), and also theoretically we should be able to handle fault storms and shoot the right device in the head if it was left in an odd state and misbehaves (not that I've hooked that up yet). So I'm not sure it makes sense to tie this patch to the existence of a driver. -- David Woodhouse Open Source Technology Centre David.Woodhouse@xxxxxxxxx Intel Corporation
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