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 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id DC1D1C433EF for ; Mon, 1 Nov 2021 03:33:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id BBCF260E52 for ; Mon, 1 Nov 2021 03:33:27 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230451AbhKADf6 (ORCPT ); Sun, 31 Oct 2021 23:35:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:50688 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230222AbhKADf4 (ORCPT ); Sun, 31 Oct 2021 23:35:56 -0400 Received: from mail-pg1-x534.google.com (mail-pg1-x534.google.com [IPv6:2607:f8b0:4864:20::534]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id EEC34C061714; Sun, 31 Oct 2021 20:33:23 -0700 (PDT) Received: by mail-pg1-x534.google.com with SMTP id 75so16047025pga.3; Sun, 31 Oct 2021 20:33:23 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20210112; h=message-id:date:mime-version:user-agent:to:cc:references:subject :content-language:from:in-reply-to:content-transfer-encoding; bh=sharXBBWNJQME5ykY3LH+Wuf67MVUTp15Nj0dIthtu4=; b=YNKZPhGxufB1MqdoLMpX2GgiBUoek9Je1+IUYEEe+W4RTQ8dKyjs4HuwkJDE7WItU8 5QLRMEeeJeH93IAEB7FtpD189DdiqLNtLPZAPIJ6s3l+Q0Rfoe+gWBbkYk8Y5ik2kbPx vvyC0IhJcKsDZ1NviSWRTTT20o3MBTlqL12HK97h5FLU6FALN1bmMp84dyrOxwUWvPm8 Bj2epbaPGN0MvVij0J8ZR79dAqcCEiLSzkPvXz7DcInYAl4IepwXKJ79Gqur4ScbDShR CwUutsvEfXZu9KUyzx7n0eRtUbsR3TnVd/veVNIoq5YArKI8wKpqZJ+ySxlXMVmu7rSu jvgw== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=x-gm-message-state:message-id:date:mime-version:user-agent:to:cc :references:subject:content-language:from:in-reply-to :content-transfer-encoding; bh=sharXBBWNJQME5ykY3LH+Wuf67MVUTp15Nj0dIthtu4=; b=bs8NVgwCpLUun6ejIcM0hr37GhyQ3+iH6dUuXyH5LT1VrDVHea4bvJ2VoNhptCpCRd GalJxWi7jsIm6cM4QGI+eaXR0kkcNLv9tMlfq9QycUGH/tnBxN0fLlo0MQEEJg6tRy7b qfSfikg04Lh5rguJzIA86VWcBRMG4g81G4fq11T/1o0dqyjDQ6RT8i/B+8Sz4xhcEOd6 cRtudhsBPCWO2oiPf4qZStuuQggVdcNuAyvGwLDYeQ9TevTXda9gCSrethgq88/4Qdch 99Obta8Xpwa6feA//45WDFIlvvTsp2+9WSNi29q2lbgi1a9dXiBJezRewbq3COUtt8uj mFEg== X-Gm-Message-State: AOAM532IkByg2PXF5l/pz4sVXbWpmMl/myO8VsMSDKPbIMMOAYmgbeRX kpP36Q/8780zHgCEamBnyZo= X-Google-Smtp-Source: ABdhPJyMvgiysaFFd7vJTxWh3eDoFfSzoDu6orq/3c+qmlVO4XLL+lpJqF+q+5V6CjZ2MHarSBDLDQ== X-Received: by 2002:a05:6a00:22cb:b0:47e:5755:7d86 with SMTP id f11-20020a056a0022cb00b0047e57557d86mr23342419pfj.78.1635737603550; Sun, 31 Oct 2021 20:33:23 -0700 (PDT) Received: from [192.168.50.189] (67.218.130.61.16clouds.com. [67.218.130.61]) by smtp.gmail.com with ESMTPSA id h11sm15364884pfh.162.2021.10.31.20.33.19 (version=TLS1_3 cipher=TLS_AES_128_GCM_SHA256 bits=128/128); Sun, 31 Oct 2021 20:33:23 -0700 (PDT) Message-ID: Date: Mon, 1 Nov 2021 11:33:16 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:91.0) Gecko/20100101 Thunderbird/91.2.1 To: chunfeng.yun@mediatek.com Cc: eddie.hung@mediatek.com, gregkh@linuxfoundation.org, linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-mediatek@lists.infradead.org, linux-usb@vger.kernel.org, matthias.bgg@gmail.com, nishadkamdar@gmail.com, stern@rowland.harvard.edu References: <1618017645-12259-1-git-send-email-chunfeng.yun@mediatek.com> Subject: Re: [PATCH v2] usb: core: reduce power-on-good delay time of root hub Content-Language: en-US From: "Walt Jr. Brake" In-Reply-To: <1618017645-12259-1-git-send-email-chunfeng.yun@mediatek.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Three month ago, My USB 3.1 device cannot be detected after upgrade kernel from version 5.10.41 to 5.10.42. And I found some other people ran into the same issue: https://forum.manjaro.org/t/kernel-5-10-59-doesnt-detect-a-connected-usb-external-disk/79320 https://forum.manjaro.org/t/how-to-make-active-usb-hub-work-in-manjaro/84548 Two days ago, I try to fix the issue myself, and I found out that it was cause by this patch. After revert this patch, my USB 3.1 device can be detect again. I have already file a bug on here: https://bugzilla.kernel.org/show_bug.cgi?id=214875.