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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 316F0C00449 for ; Wed, 3 Oct 2018 18:25:24 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id B4D442089F for ; Wed, 3 Oct 2018 18:25:23 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org B4D442089F Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=holtmann.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727369AbeJDBOw convert rfc822-to-8bit (ORCPT ); Wed, 3 Oct 2018 21:14:52 -0400 Received: from coyote.holtmann.net ([212.227.132.17]:47832 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726851AbeJDBOw (ORCPT ); Wed, 3 Oct 2018 21:14:52 -0400 Received: from marcel-macbook.fritz.box (p4FEFC9BB.dip0.t-ipconnect.de [79.239.201.187]) by mail.holtmann.org (Postfix) with ESMTPSA id 7465ECF359; Wed, 3 Oct 2018 20:32:37 +0200 (CEST) Content-Type: text/plain; charset=utf-8 Mime-Version: 1.0 (Mac OS X Mail 12.0 \(3445.100.39\)) Subject: Re: [PATCH 3/3] iwlwifi: Load firmware exclusively for Intel WiFi From: Marcel Holtmann In-Reply-To: <24BAAAAB-17E4-4820-A09A-50984B8EBA40@canonical.com> Date: Wed, 3 Oct 2018 20:25:18 +0200 Cc: Matt Chen , Luciano Coelho , LKML , Johannes Berg , "Grumbach, Emmanuel" , linuxwifi@intel.com, Kalle Valo , "David S. Miller" , linux-wireless , netdev@vger.kernel.org Content-Transfer-Encoding: 8BIT Message-Id: <910F8A29-3141-422F-87EE-7BFBCDE9060C@holtmann.org> References: <20181003071513.13004-3-kai.heng.feng@canonical.com> <2787bccf20b6f647de9f4cafae5fd223e771b167.camel@intel.com> <81B978A9-270E-4C0B-BE67-D05899B1BC3B@canonical.com> <24BAAAAB-17E4-4820-A09A-50984B8EBA40@canonical.com> To: Kai Heng Feng X-Mailer: Apple Mail (2.3445.100.39) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Kai-Heng, >> I think Canonical were facing some wifi fw load error from some 8260 >> earlier module during the BT still loading the fw. >> I believe we had later 8260 sku that fixed this issue. > > But there are already 8260 that is affected by this bug in the wild. > > Search "Bluetooth: hci0: Failed to send firmware data (-38)” and there are lots of user are affected. which SKUs are these actually. What are the initial details about the boot loader. For the Bluetooth side, you should be able to grab them from dmesg or by running btmon. So I am not in favor of this kind of hack and creating dependencies between drivers. If you only have a hammer, then everything looks like a nail. And this is a massive hammer trying to squash everything. This problem needs to be debugged. And this starts by providing affected SKU information and firmware information. So get the details about the SKU and its Bluetooth and WiFi boot loaders. Regards Marcel