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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id EEA32C77B60 for ; Fri, 31 Mar 2023 07:28:40 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229530AbjCaH2j (ORCPT ); Fri, 31 Mar 2023 03:28:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57668 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S230341AbjCaH2h (ORCPT ); Fri, 31 Mar 2023 03:28:37 -0400 Received: from mga06.intel.com (mga06b.intel.com [134.134.136.31]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 74C07B477 for ; Fri, 31 Mar 2023 00:28:35 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1680247715; x=1711783715; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=bPgNKlhyb9OzyYvORgvr/d3MfdvndiYONGsHq0bVvmA=; b=lOhuqnCFSS1nh+I3GeAz+Oh8djYb0ehuPVjdFANm8mC083nDmXvAzkpD za/ArtLt1zs1Hf8vw/3w7mZj90/W/sQK4dZeVZXJmSI9SqCFv2m2pyGvQ 1b5hXYOPvyZRhq/EmVFCNQEWJxsza4kl5jLGlfXMkOWg2JQVlozU6wMYm WfhfSazmKH1BAaHd1e0opMqlNI1+DT0zZQGE+4zpkG9o/wH+PtKqo30Tr Poeb9k/Bc5j1hvWPiEev572OMzqYXPIL+qkLEuatprQ8H60/khewP3eZU dD85iQ4EpSdTksYSgFwYdkoCjR+KIF0+mSN7EE4fA3352CAETyKxDUPOk w==; X-IronPort-AV: E=McAfee;i="6600,9927,10665"; a="404098607" X-IronPort-AV: E=Sophos;i="5.98,307,1673942400"; d="scan'208";a="404098607" Received: from fmsmga003.fm.intel.com ([10.253.24.29]) by orsmga104.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 31 Mar 2023 00:28:34 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10665"; a="774264247" X-IronPort-AV: E=Sophos;i="5.98,307,1673942400"; d="scan'208";a="774264247" Received: from mattu-haswell.fi.intel.com (HELO [10.237.72.199]) ([10.237.72.199]) by FMSMGA003.fm.intel.com with ESMTP; 31 Mar 2023 00:28:33 -0700 Message-ID: <91ed91fb-def3-80f9-827b-8ed633b836d9@linux.intel.com> Date: Fri, 31 Mar 2023 10:29:56 +0300 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:102.0) Gecko/20100101 Firefox/102.0 Thunderbird/102.7.1 Subject: Re: [PATCH 2/3] Revert "usb: xhci-pci: Set PROBE_PREFER_ASYNCHRONOUS" Content-Language: en-US To: Greg KH Cc: linux-usb@vger.kernel.org References: <20230330143056.1390020-1-mathias.nyman@linux.intel.com> <20230330143056.1390020-3-mathias.nyman@linux.intel.com> From: Mathias Nyman In-Reply-To: Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org On 30.3.2023 17.40, Greg KH wrote: > On Thu, Mar 30, 2023 at 05:30:55PM +0300, Mathias Nyman wrote: >> This reverts commit 4c2604a9a6899bab195edbee35fc8d64ce1444aa. >> >> Asynch probe caused regression in a setup with both Renesas and Intel xHC >> controllers. Devices connected to the Renesas disconnected shortly after >> boot. With Asynch probe the busnumbers got interleaved. >> >> xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 1 >> xhci_hcd 0000:04:00.0: new USB bus registered, assigned bus number 2 >> xhci_hcd 0000:00:14.0: new USB bus registered, assigned bus number 3 >> xhci_hcd 0000:04:00.0: new USB bus registered, assigned bus number 4 >> >> Reason why this commit causes regression is still unknown, but revert it >> while debugging the issue. >> >> Link: https://lore.kernel.org/linux-usb/20230307132120.5897c5af@deangelis.fenrir.org.uk >> Signed-off-by: Mathias Nyman > > I'll add a Fixes: and cc: stable on this, ok? Yes, please. Thanks Mathias