Re: [v4.2-rc1 Regression] usb: Enable LPM for USB 2.01+ full-speed devices
From: Alan Stern
Date: Wed Jun 22 2016 - 12:30:10 EST
On Wed, 22 Jun 2016, Joseph Salisbury wrote:
> Hi Rupesh,
> A kernel bug report was opened against Ubuntu . After a kernel
> bisect, it was found that reverting the following commit resolved this bug:
> commit a8425292816ceaa8c49e29d2114e85d85a73e080
> Author: Rupesh Tatiya <rtatiya@xxxxxxxxxxxxxx>
> Date: Tue Apr 14 16:36:55 2015 +0530
> usb: Enable LPM for USB 2.01+ full-speed devices
> The regression was introduced as of v4.2-rc1.
> I was hoping to get your feedback, since you are the patch author. Do
> you think gathering any additional data will help diagnose this issue,
> or would it be best to submit a revert request?
Another option is to add a NO_LPM quirks entry for the troublesome