[PATCH v2 4/9] PCI: mark USB4 devices as removable

Mario Limonciello
2022-02-10T22:44:01Z

USB4 class devices are also removable like Intel Thunderbolt devices.

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.

Signed-off-by: Mario Limonciello <mario.limonciello@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 e41656cdd8f0..73673a83eb5e 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 ||
(parent &&
(parent->external_facing || dev_is_removable(&parent->dev))))
dev_set_removable(&dev->dev, DEVICE_REMOVABLE);
--
2.34.1