[PATCH v3 06/12] PCI: Explicitly mark USB4 NHI devices as removable

[Bjorn Helgaas]

On Fri, Feb 11, 2022 at 01:32:44PM -0600, Mario Limonciello wrote:
> USB4 class devices are also removable like Intel Thunderbolt devices.

Spec reference, please.

> Drivers of downstream devices use this information to declare functional
> differences in how the drivers perform by knowing that they are connected
> to an upstream TBT/USB4 port.
> 
> Reviewed-by: Macpaul Lin <macpaul.lin at mediatek.com>
> Signed-off-by: Mario Limonciello <mario.limonciello at amd.com>
> ---
>  drivers/pci/probe.c | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/drivers/pci/probe.c b/drivers/pci/probe.c
> index 2693211d31cf..67ca33188cba 100644
> --- a/drivers/pci/probe.c
> +++ b/drivers/pci/probe.c
> @@ -1610,6 +1610,7 @@ static void pci_set_removable(struct pci_dev *dev)
>  	 * exposed as "removable" to userspace.
>  	 */
>  	if (vsec ||
> +	    dev->class == PCI_CLASS_SERIAL_USB_USB4 ||
>  	    pci_acpi_is_usb4(dev) ||
>  	    (parent &&
>  	    (parent->external_facing || dev_is_removable(&parent->dev))))
> -- 
> 2.34.1
>