The port pm_runtime implementation unconditionally clears FEAT_C_ENABLE after clearing PORT_POWER, but the bit is reserved on usb3 hub ports. We expect khubd to be prevented from running because the port state is not RPM_ACTIVE, so we need to clear any errors for usb2 ports. Acked-by: Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx> --- drivers/usb/core/port.c | 3 ++- 1 files changed, 2 insertions(+), 1 deletions(-) diff --git a/drivers/usb/core/port.c b/drivers/usb/core/port.c index 32e61913c085..d3a23fee7247 100644 --- a/drivers/usb/core/port.c +++ b/drivers/usb/core/port.c @@ -136,7 +136,8 @@ static int usb_port_runtime_suspend(struct device *dev) set_bit(port1, hub->busy_bits); retval = usb_hub_set_port_power(hdev, hub, port1, false); usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_CONNECTION); - usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_ENABLE); + if (!usb_port_is_superspeed(port_dev)) + usb_clear_port_feature(hdev, port1, USB_PORT_FEAT_C_ENABLE); clear_bit(port1, hub->busy_bits); usb_autopm_put_interface(intf); -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
