Re: [PATCH V4 00/10] PCI/VGA: Rework default VGA device selection

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Hi, Bjorn,

On Fri, Sep 10, 2021 at 1:59 AM Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote:
>
> On Fri, Aug 27, 2021 at 04:31:19PM +0800, Huacai Chen wrote:
> > My original work is at [1].
> >
> > Bjorn do some rework and extension in V2. It moves the VGA arbiter to
> > the PCI subsystem, fixes a few nits, and breaks a few pieces to make
> > the main patch a little smaller.
> >
> > V3 rewrite the commit log of the last patch (which is also summarized
> > by Bjorn).
> >
> > V4 split the last patch to two steps.
> >
> > All comments welcome!
>
> I'm hoping to apply something like this for v5.16.
>
> BUT as I mentioned in [2], I want the very first patch to be the very
> simple 2-line change to vga_arb_update_default_device() that actually
> fixes your problem.
>
> It makes no sense for that change to be at the very end, hidden in the
> middle of a bigger restructuring patch.
I think I should split the restructuring patch again, and sort the
series to move important things to earlier patches. Let me try...

Huacai
>
> [2] https://lore.kernel.org/r/20210825201704.GA3600046@bjorn-Precision-5520
>
> > [1] https://lore.kernel.org/dri-devel/20210705100503.1120643-1-chenhuacai@xxxxxxxxxxx/
> >
> > Bjorn Helgaas (4):
> >   PCI/VGA: Move vgaarb to drivers/pci
> >   PCI/VGA: Replace full MIT license text with SPDX identifier
> >   PCI/VGA: Use unsigned format string to print lock counts
> >   PCI/VGA: Remove empty vga_arb_device_card_gone()
> >
> > Huacai Chen (6):
> >   PCI/VGA: Move vga_arb_integrated_gpu() earlier in file
> >   PCI/VGA: Prefer vga_default_device()
> >   PCI/VGA: Split out vga_arb_update_default_device()
> >   PCI/VGA: Log bridge control messages when adding devices
> >   PCI/VGA: Rework default VGA device selection (Step 1)
> >   PCI/VGA: Rework default VGA device selection (Step 2)
> >
> > Signed-off-by: Huacai Chen <chenhuacai@xxxxxxxxxxx>
> > Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> > ---
> >  drivers/gpu/vga/Kconfig           |  19 ---
> >  drivers/gpu/vga/Makefile          |   1 -
> >  drivers/pci/Kconfig               |  19 +++
> >  drivers/pci/Makefile              |   1 +
> >  drivers/{gpu/vga => pci}/vgaarb.c | 269 ++++++++++++------------------
> >  5 files changed, 126 insertions(+), 183 deletions(-)
> >  rename drivers/{gpu/vga => pci}/vgaarb.c (90%)
> > --
> > 2.27.0
> >



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