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=-5.8 required=3.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED autolearn=no 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 3DF5EC433E0 for ; Fri, 19 Feb 2021 08:23:43 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CA48464EC0 for ; Fri, 19 Feb 2021 08:23:42 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229924AbhBSIX0 (ORCPT ); Fri, 19 Feb 2021 03:23:26 -0500 Received: from mail.kernel.org ([198.145.29.99]:59346 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229880AbhBSIXA (ORCPT ); Fri, 19 Feb 2021 03:23:00 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 4179464EB8; Fri, 19 Feb 2021 08:22:19 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1613722939; bh=YcfM6Nd6zgmghDPB1XXn5JJry5eIgHdHD9ec4/vuPwY=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=krnU5a09BP8y4DKtPeof+p1H+UMbuCwjswokyJf96obEIff/MC9I5J4xCWttOBthX bUT4GMUDaolg/nWmybNAyNLhW6B/rp57aet7urN7ytPyy+PkdSfn0V1xcKx2AOBmCw JnEFt/AeuMum/JOncetSBk/8B/fUvNY6w+bCH7fg= Date: Fri, 19 Feb 2021 09:22:17 +0100 From: Greg Kroah-Hartman To: Jari Ruusu Cc: Willy Tarreau , Jari Ruusu , Scott Branden , Linux ARM , LKML , BCM Kernel Feedback Subject: Re: 5.10 LTS Kernel: 2 or 6 years? Message-ID: References: <20210218113107.GA12547@1wt.eu> <602E766F.758C74D8@users.sourceforge.net> <20210218143341.GB13671@1wt.eu> 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-kernel@vger.kernel.org On Fri, Feb 19, 2021 at 07:10:35AM +0000, Jari Ruusu wrote: > On Thursday, February 18, 2021 7:44 PM, Greg Kroah-Hartman wrote: > > > It was the other way around. Fine working in-tree driver got > > > broken by backported "fixes". I did mention bit-rot. > > > > It did? Please let us stable maintainers know about, we will always > > gladly revert problems patches. What commits caused the problem? > > I don't have a list of commits for you. It took me long time to > figure out that it was iwlwifi that was causing those problems. > > In-tree iwlwifi on 4.19.y kernels needs professional quality > locking audit and backporting of necessary fixes from upstream > Intel out-of-tree version. That's not the goal of stable kernel releases/trees. If the driver version that is in 4.19.y does not work for you on release 4.19.0, odds of that "changing" in later stable releases is slim to none. Especially without any specific bug reports or emails to the developers to tell them what is broken and not working for you. If however, you wish to stick with an out-of-tree driver, wonderful, that's your choice. But don't claim that somehow the stable kernel process is broken because of that, as it has nothing to do with this type of thing. Best of luck! greg k-h