From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753170AbcFVQOx (ORCPT ); Wed, 22 Jun 2016 12:14:53 -0400 Received: from mail.linuxfoundation.org ([140.211.169.12]:37613 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752095AbcFVQOv (ORCPT ); Wed, 22 Jun 2016 12:14:51 -0400 Date: Wed, 22 Jun 2016 09:14:49 -0700 From: Greg KH To: Joseph Salisbury Cc: rtatiya@codeaurora.org, Robert Ancell , Alan Stern , "mathias.nyman@linux.intel.com" , chasemetzger15@gmail.com, baolu.lu@linux.intel.com, oneukum@suse.com, kborer@gmail.com, jun.li@freescale.com, USB list , LKML Subject: Re: [v4.2-rc1 Regression] usb: Enable LPM for USB 2.01+ full-speed devices Message-ID: <20160622161449.GA27573@kroah.com> References: <576AB103.4060301@canonical.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <576AB103.4060301@canonical.com> User-Agent: Mutt/1.6.1 (2016-04-27) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org 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 > 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