XHCI regression on v4.10-rc1

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Hi Mathias, Greg

I am working on ARM STi platform, since v4.10-rc1, when booting B2260 or B2120 STi boards platform 
with nothing plugged on USB3 connector, i observed the following kernel logs :

....
[  801.953836] usb usb6-port1: Cannot enable. Maybe the USB cable is bad?
[  801.960455] xhci-hcd xhci-hcd.0.auto: Cannot set link state.
[  801.966611] usb usb6-port1: cannot disable (err = -32)
[  806.083772] usb usb6-port1: Cannot enable. Maybe the USB cable is bad?
[  806.090370] xhci-hcd xhci-hcd.0.auto: Cannot set link state.
[  806.096494] usb usb6-port1: cannot disable (err = -32)
[  810.208766] usb usb6-port1: Cannot enable. Maybe the USB cable is bad?
[  810.215374] xhci-hcd xhci-hcd.0.auto: Cannot set link state.
[  810.221478] usb usb6-port1: cannot disable (err = -32)
[  814.333767] usb usb6-port1: Cannot enable. Maybe the USB cable is bad?
[  814.340364] xhci-hcd xhci-hcd.0.auto: Cannot set link state.
.....

Another interesting thing is even if i plugged a device (a mass storage device in my case) on the USB3 connector, 
the above logs continue to appear.

This is due to commit 37be66767e3ca "usb: hub: Fix auto-remount of safely removed or ejected USB-3 devices".

I don't know if STi platforms are the only impacted by this issue.

On v4.9 everything was ok.

Patrice

Regards


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