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    SubjectRe: [v4.2-rc1 Regression] usb: Enable LPM for USB 2.01+ full-speed devices
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    On 06/24/2016 08:06 AM, Joseph Salisbury wrote:
    > On 06/22/2016 12:14 PM, Greg KH wrote:
    >> On Wed, Jun 22, 2016 at 11:38:43AM -0400, Joseph Salisbury wrote:
    >>> Hi Rupesh,
    >>>
    >>> A kernel bug report was opened against Ubuntu [0]. After a kernel
    >>> bisect, it was found that reverting the following commit resolved this bug:
    >>>
    >>> commit a8425292816ceaa8c49e29d2114e85d85a73e080
    >>> Author: Rupesh Tatiya <rtatiya@codeaurora.org>
    >>> 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?
    >> Does the problem still happen with 4.7-rc4 or even 4.6?
    >>
    >> 4.2 is pretty old and obsolete you know :)
    >>
    >> thanks,
    >>
    >> greg k-h
    > The regression does exist in 4.6-rc2. I'll have the latest mainline
    > 4.7-rc4 kernel tested.
    The 4.7-rc4 kernel still exhibits the bug.

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