Re: [PATCH 4/5] PCI: Enable async shutdown support

[David Jeffery]

On Wed, May 6, 2026 at 2:28 PM Bjorn Helgaas <helgaas@xxxxxxxxxx> wrote:
>
> On Wed, Apr 29, 2026 at 01:50:15PM -0400, David Jeffery wrote:
> > Like its async suspend support, allow PCI device shutdown to be performed
> > asynchronously to reduce shutdown time.
> >
> > Signed-off-by: David Jeffery <djeffery@xxxxxxxxxx>
> > Signed-off-by: Stuart Hayes <stuart.w.hayes@xxxxxxxxx>
> > Tested-by: Laurence Oberman <loberman@xxxxxxxxxx>
> > Reviewed-by: Martin K. Petersen <martin.petersen@xxxxxxxxxx>
> > Reviewed-by: Pasha Tatashin <pasha.tatashin@xxxxxxxxxx>
>
> Reviewed-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
>
> I'm concerned about tripping over driver issues, but it's a pretty big
> benefit.  I think it's worth mentioning the "async_shutdown" module
> parameter somewhere in the commit logs and putting an example in
> Documentation/admin-guide/kernel-parameters.txt.

Sure, I can see about adding a document patch to it.

> Might even consider keeping in -next for a cycle+ and targeting v7.3.

I would be happy for it to spend as much time in linux-next as needed
for people to be comfortable with the risk of odd interactions with
all the pci drivers it will indirectly impact.

But I must admit my ignorance with some of the details of linux-next.
Looking at the main code changes, the patchset would seem to want to
go through driver-core to get to linux-next. But as far as indirect
impact, it is the diverse collection of devices and drivers under PCI
which are most affected by the changes. Is there a consensus on how to
steward a patchset like this one into linux-next?

David Jeffery