From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-3.2 required=3.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,FSL_HELO_FAKE,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,URIBL_BLOCKED,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id A264CC43387 for ; Thu, 10 Jan 2019 15:49:14 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6D524206B7 for ; Thu, 10 Jan 2019 15:49:14 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (1024-bit key) header.d=chromium.org header.i=@chromium.org header.b="GXlGp+v7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729651AbfAJPtN (ORCPT ); Thu, 10 Jan 2019 10:49:13 -0500 Received: from mail-qt1-f194.google.com ([209.85.160.194]:42689 "EHLO mail-qt1-f194.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728196AbfAJPtN (ORCPT ); Thu, 10 Jan 2019 10:49:13 -0500 Received: by mail-qt1-f194.google.com with SMTP id d19so13468521qtq.9 for ; Thu, 10 Jan 2019 07:49:11 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=chromium.org; s=google; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=UzCHN6ZAYfuc+bAQ6pxUDfDKwJ3nHkac1f0dov90bVc=; b=GXlGp+v71dHwIXM2GMAjfxUkBb//yY5taoCw5mJOGIEhwcuwbLYSnMxM1amea+lj+X +fgVqRytyvHNt4AOtomFmGess4SoYoZoaVrfTwqh3z41m/BJs0xqYaJqkhXKxdCKcKGq +JCS8lhfcD2uR/y81zhJWYJV2vYMvblVO4J5I= X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=UzCHN6ZAYfuc+bAQ6pxUDfDKwJ3nHkac1f0dov90bVc=; b=gfM9MZpAf1iSJAtXe83+JRnKYfewYoFUs2IK+J/fjJ6wpgteraJv+SdYRhfyTh+3hv +6Pc4k3mPSkwV3yOc78RHRvjllxi1HUHBKReYa8jKKD7G4gtDonX/iOArLqQRK35jrD8 1ALy3B2QH4aBfCauu5IN8v/iqBSBR//lr/Wo074OvL3Gi/YamMFOPA6826wtUM5t+p9n Eqv0wgXrJQAhuyk12Tr3da7L4hLU4Wp4phgfpAxZ/RdunR60Qmw7fgt7xEcd0B89AnQs 8r0Uvqe6lx1sA1tYpdTKoJ9UgyJnFLNCXqazuakjAxAfFBjzHOWzth4vUek5726uScT1 gnvA== X-Gm-Message-State: AJcUukcqOMjO1nhMmz9p+yK8MpJ+RQ8P1Pz7DcrqwYGDeQ6zwaoXedrX uLn5xJvXNYuw5ESSuL+FeeJicQ== X-Google-Smtp-Source: ALg8bN7jFpIPweZZQarWLl3QA5Pf/TMswCi0ehHSF1gzqlsrz+FFsDt0fGYpHnPTM87XsoH4KdsFBA== X-Received: by 2002:a0c:96c9:: with SMTP id b9mr9881168qvd.238.1547135351421; Thu, 10 Jan 2019 07:49:11 -0800 (PST) Received: from google.com ([2620:0:1003:510:59af:10e9:2d49:6b0a]) by smtp.gmail.com with ESMTPSA id 20sm46011180qtp.54.2019.01.10.07.49.10 (version=TLS1_2 cipher=ECDHE-RSA-CHACHA20-POLY1305 bits=256/256); Thu, 10 Jan 2019 07:49:10 -0800 (PST) Date: Thu, 10 Jan 2019 10:49:09 -0500 From: Kyle Williams To: Greg Kroah-Hartman Cc: linux-kernel@vger.kernel.org, Alan Stern , Mathias Nyman , Nicolas Boichat , Jon Flatley , Felipe Balbi , linux-usb@vger.kernel.org Subject: Re: [PATCH v3 1/2] USB: quirks: Check device interface LPM capability Message-ID: <20190110154909.GB142026@google.com> References: <20181205093902.GA18633@kroah.com> <20181208014724.951-1-kdgwill@google.com> <20181208014724.951-2-kdgwill@google.com> <20181212113709.GA20058@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181212113709.GA20058@kroah.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, Dec 12, 2018 at 12:37:09PM +0100, Greg Kroah-Hartman wrote: > On Fri, Dec 07, 2018 at 08:47:21PM -0500, Kyle Williams wrote: > > From: Kyle Williams > > > > Description: enable the ability to disable LPM for all devices matched > > by interface information > > Why have "Description:" in here? Of course this is the description :) > > And the subject doesn't make much sense, what does this have to do with > quirks? > > Also, you need more information here in the description about why you > are doing all of this, as it is, I have no idea why this patch is needed > at all. > > thanks, > > greg k-h It seems the underlying issue has been solved in 0472bf0 xhci: Prevent U1/U2 link pm states if exit latency is too long However, the patch to fix the issue when matching the USB_QUIRK_NO_LPM quirk by iterface could be useful in the future. Currently nothing will happen that quirk is matched by interface instead of by vid/pid pair. Is their anything that would need to be changed besides removing the Description tag? -Kyle