Re: [PATCH v2] PCI: Disable ATS via quirk before notifying IOMMU drivers

[Andy Shevchenko]

On Tue, Mar 31, 2026 at 11:46:22AM -0700, David Matlack wrote:
> On Tue, Mar 31, 2026 at 11:38 AM Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote:
> > On Tue, Mar 31, 2026 at 09:01:53AM -0700, David Matlack wrote:
> > > On Fri, Mar 27, 2026 at 2:17 PM David Matlack <dmatlack@xxxxxxxxxx> wrote:

...

> Yes I would like to work on another version. I have 3 things I want to
> investigate/fix:
> 
>  * Fix the bug Sashiko found with early vs. header fixups.

>  * Investigate whether no_ats be a u8 instead of unsigned int to avoid
> increasing sizeof(struct pci_dev).

Use `pahole`, it will check the layout and suggests correctly what's going on
there. It's not a fuzzy AI :-)

>  * Investigate Boalu's finding. Maybe this issue is specific to VF
> creation, and changing the order of calls there would be a better
> solution.

-- 
With Best Regards,
Andy Shevchenko