Re: [patch RFC 30/38] PCI/MSI: Allow to disable arch fallbacks

[Thomas Gleixner]

On Tue, Aug 25 2020 at 23:40, Thomas Gleixner wrote:
> On Tue, Aug 25 2020 at 16:35, Bjorn Helgaas wrote:
>> On Tue, Aug 25, 2020 at 11:28:30PM +0200, Thomas Gleixner wrote:
>>> 
>>> Or did you just mean that those architectures should select
>>> CONFIG_I_WANT_THE CRUFT instead of opting out on the fully irq domain
>>> based ones?
>>
>> Yes, that was my real question -- can we confine the cruft in the
>> crufty arches?  If not, no big deal.
>
> Should be doable. Let me try.

Bah. There is more cruft.

The weak implementation has another way to go sideways via
msi_controller::setup_irq[s] and msi_controller::teardown_irq

drivers/pci/controller/pci-tegra.c
drivers/pci/controller/pcie-rcar-host.c
drivers/pci/controller/pcie-xilinx.c

Groan....