Re: [PATCH 4/5] pci: enable async shutdown support

[Greg Kroah-Hartman]

On Wed, Mar 11, 2026 at 01:12:08PM -0400, David Jeffery wrote:
> Like its async suspend support, allow pci device shutdown to be performed
> asynchronously to improve shutdown time.
> 
> Signed-off-by: David Jeffery <djeffery@xxxxxxxxxx>
> Signed-off-by: Stuart Hayes <stuart.w.hayes@xxxxxxxxx>
> Tested-by: Laurence Oberman <loberman@xxxxxxxxxx>
> ---
>  drivers/pci/probe.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index bccc7a4bdd79..4d98bab2163d 100644
> --- a/drivers/pci/probe.c
> +++ b/drivers/pci/probe.c
> @@ -1040,6 +1040,7 @@ static int pci_register_host_bridge(struct pci_host_bridge *bridge)
>  
>  	bus->bridge = get_device(&bridge->dev);
>  	device_enable_async_suspend(bus->bridge);
> +	device_enable_async_shutdown(bus->bridge);
>  	pci_set_bus_of_node(bus);
>  	pci_set_bus_msi_domain(bus);
>  	if (bridge->msi_domain && !dev_get_msi_domain(&bus->dev) &&
> @@ -2749,6 +2750,7 @@ void pci_device_add(struct pci_dev *dev, struct pci_bus *bus)
>  	pci_reassigndev_resource_alignment(dev);
>  
>  	pci_init_capabilities(dev);
> +	device_enable_async_shutdown(&dev->dev);

For all PCI devices?  Are you sure this is ok?  That feels like it is
going to be ripe with race conditions...

How was this tested?

thanks,

greg k-h