On Mon, Apr 20, 2020 at 01:29:09AM -0700, Christoph Hellwig wrote: > On Thu, Apr 16, 2020 at 06:20:20PM -0400, Michael S. Tsirkin wrote: > > vhost is currently broken on the some ARM configs. > > > > The reason is that that uses apcs-gnu which is the ancient OABI that is been > > deprecated for a long time. > > > > Given that virtio support on such ancient systems is not needed in the > > first place, let's just add something along the lines of > > > > depends on !ARM || AEABI > > > > to the virtio Kconfig declaration, and add a comment that it has to do > > with struct member alignment. > > > > Note: we can't make VHOST and VHOST_RING themselves have > > a dependency since these are selected. Add a new symbol for that. > > This description is horrible. The only interesting thing for ARM OABI > is that it has some strange padding rules, but that isn't something > that can't be handled. Please spend some time looking into the issue > and add te proper __padded annotations, we've done that elsewhere in > the kernel and it isn't too bad - in fact it helps understanding issues > with implicit alignment. Yes I have a patch queued to fix it. I wanted a minimal patch for this release though. > And even if you have a good reason not to fix vhost (which I think you > don't have) this changelog is just utter crap, as it fails to mention > what the problem with ARM OABI even is. I'll tweak that, thanks! -- MST
