Re: [PATCH 1/2] vfio/pci: remove vfio_pci_nvlink2

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On Thu, Apr 22, 2021 at 11:49:31PM +1000, Michael Ellerman wrote:
> Alex Williamson <alex.williamson@xxxxxxxxxx> writes:
> > On Mon, 12 Apr 2021 19:41:41 +1000
> > Michael Ellerman <mpe@xxxxxxxxxxxxxx> wrote:
> >
> >> Alex Williamson <alex.williamson@xxxxxxxxxx> writes:
> >> > On Fri, 26 Mar 2021 07:13:10 +0100
> >> > Christoph Hellwig <hch@xxxxxx> wrote:
> >> >  
> >> >> This driver never had any open userspace (which for VFIO would include
> >> >> VM kernel drivers) that use it, and thus should never have been added
> >> >> by our normal userspace ABI rules.
> >> >> 
> >> >> Signed-off-by: Christoph Hellwig <hch@xxxxxx>
> >> >> Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
> >> >>  drivers/vfio/pci/Kconfig            |   6 -
> >> >>  drivers/vfio/pci/Makefile           |   1 -
> >> >>  drivers/vfio/pci/vfio_pci.c         |  18 -
> >> >>  drivers/vfio/pci/vfio_pci_nvlink2.c | 490 ----------------------------
> >> >>  drivers/vfio/pci/vfio_pci_private.h |  14 -
> >> >>  include/uapi/linux/vfio.h           |  38 +--
> >> >>  6 files changed, 4 insertions(+), 563 deletions(-)
> >> >>  delete mode 100644 drivers/vfio/pci/vfio_pci_nvlink2.c  
> >> >
> >> > Hearing no objections, applied to vfio next branch for v5.13.  Thanks,  
> >> 
> >> Looks like you only took patch 1?
> >> 
> >> I can't take patch 2 on its own, that would break the build.
> >> 
> >> Do you want to take both patches? There's currently no conflicts against
> >> my tree. It's possible one could appear before the v5.13 merge window,
> >> though it would probably just be something minor.
> >> 
> >> Or I could apply both patches to my tree, which means patch 1 would
> >> appear as two commits in the git history, but that's not a big deal.
> >
> > I've already got a conflict in my next branch with patch 1, so it's
> > best to go through my tree.  Seems like a shared branch would be
> > easiest to allow you to merge and manage potential conflicts against
> > patch 2, I've pushed a branch here:
> >
> > https://github.com/awilliam/linux-vfio.git v5.13/vfio/nvlink
> 
> Thanks.
> 
> My next is based on rc2, so I won't pull that in directly, because I
> don't want to pull all of rc6 in with it.

Linus is fine if you merge in rc's for development reasons. He doesn't
like it when people just merge rc's without a purpose.

Merge rc7 to your tree then pull the nvlink topic is acceptable.

Or just do nothing because Alex will send it through his tree - this
extra co-ordination is really only necessary if there are conflicts.

Jason
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