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 3373CC6FA86 for ; Mon, 12 Sep 2022 13:53:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229836AbiILNx6 (ORCPT ); Mon, 12 Sep 2022 09:53:58 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:44526 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229533AbiILNx5 (ORCPT ); Mon, 12 Sep 2022 09:53:57 -0400 Received: from mga17.intel.com (mga17.intel.com [192.55.52.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6800F183B5; Mon, 12 Sep 2022 06:53:56 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1662990836; x=1694526836; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=rbzt0lrmC7TaIMc8MXfMMR3pFAnIuI/01jw8aaqyKOk=; b=SqB3r34W90JF3iTTLbrtrD4f2bRu/wEQgRl3CksH3Yj6lum2sRjPWyLy cvQZCu6OdmFmWUmj7CJPw3J+KLccmGGwjMRayj3lEv1JbWFe80/gJE/jK 3K95US+E34eLYpSX/cc1R9gEFiVWm1XHYQcFLApvr2RkNuCbEU2RuAJHc BnSueOk0Wf5Vg2pXnx9eCo5DppKIXv58ea7Eh9XfHnJRGF36kx6u5dksN WUJSW2qvY6js/WZm4M3KhkI8ziLS9yYf6BYlWh/iqKSqkAsrp3aUyERoG IXO9EzQQySbr0wM/HwAA72b7m1fr6R7naIH0INv8MBFoSmXrgGUZPR0/i w==; X-IronPort-AV: E=McAfee;i="6500,9779,10468"; a="278259509" X-IronPort-AV: E=Sophos;i="5.93,310,1654585200"; d="scan'208";a="278259509" Received: from fmsmga001.fm.intel.com ([10.253.24.23]) by fmsmga107.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 12 Sep 2022 06:53:56 -0700 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,310,1654585200"; d="scan'208";a="758400221" Received: from kuha.fi.intel.com ([10.237.72.185]) by fmsmga001.fm.intel.com with SMTP; 12 Sep 2022 06:53:54 -0700 Received: by kuha.fi.intel.com (sSMTP sendmail emulation); Mon, 12 Sep 2022 16:53:53 +0300 Date: Mon, 12 Sep 2022 16:53:53 +0300 From: Heikki Krogerus To: Paul Menzel Cc: Bjorn Helgaas , linux-pci@vger.kernel.org, linux-usb@vger.kernel.org Subject: Re: Dell XPS 13 9360/Dell DA300: USB Type-C: PCIe Bus Error: severity=Corrected, type=Data Link Layer, (Receiver ID) Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-usb@vger.kernel.org Hi Paul, On Mon, Sep 12, 2022 at 03:36:09PM +0200, Paul Menzel wrote: > Dear Linux folks, > > On a Dell XPS 13 9360/0596KF, BIOS 2.21.0 06/02/2022, connect a Dell DA300 > to the only USB Type-C port on the left side (with a network cable connect), > Linux logs the warnings below: > [ 18.895120] ucsi_acpi USBC000:00: UCSI_GET_PDOS returned 0 bytes This warning you already reported [1]. I will send a patch for this once I'm sure I understand what's going on. I'm fairly sure I now know what is causing that, but I will still run a few more tests to be absolutely sure. The warning is in any case not critical. [1] https://lore.kernel.org/linux-usb/726661bf-b95f-02fc-e7c5-c222820ee257@molgen.mpg.de/ -- heikki