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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 32ECEC47095 for ; Wed, 9 Jun 2021 06:13:59 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 0B59361009 for ; Wed, 9 Jun 2021 06:13:59 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234266AbhFIGPw (ORCPT ); Wed, 9 Jun 2021 02:15:52 -0400 Received: from muru.com ([72.249.23.125]:39756 "EHLO muru.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232973AbhFIGPv (ORCPT ); Wed, 9 Jun 2021 02:15:51 -0400 Received: from atomide.com (localhost [127.0.0.1]) by muru.com (Postfix) with ESMTPS id EB3628061; Wed, 9 Jun 2021 06:14:04 +0000 (UTC) Date: Wed, 9 Jun 2021 09:13:53 +0300 From: Tony Lindgren To: Greg KH Cc: stable@vger.kernel.org, linux-kernel@vger.kernel.org, linux-omap@vger.kernel.org, Daniel Lezcano , Keerthy , Tero Kristo Subject: Re: [Backport for linux-5.4.y PATCH 2/4] ARM: OMAP2+: Prepare timer code to backport dra7 timer wrap errata i940 Message-ID: References: <20210602104625.6079-1-tony@atomide.com> <20210602104625.6079-2-tony@atomide.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Hi, * Greg KH [210608 17:13]: > On Wed, Jun 02, 2021 at 01:46:23PM +0300, Tony Lindgren wrote: > > Prepare linux-5.4.y to backport upstream timer wrap errata commit > > 3efe7a878a11c13b5297057bfc1e5639ce1241ce and commit > > 25de4ce5ed02994aea8bc111d133308f6fd62566. Earlier kernels still use > > mach-omap2/timer instead of drivers/clocksource as these kernels still > > depend on legacy platform code for timers. Note that earlier stable > > kernels need also additional patches and will be posted separately. > > I do not understand this paragraph. > > What upstream commit is this? And "posted separately" shouldn't show up > in a changelog text, right? This would be a partial backport to add struct dmtimer_clockevent from commit 52762fbd1c4778ac9b173624ca0faacd22ef4724 to the platform timer code used in the older kernels. How about the following for the description: Upstream commit 52762fbd1c4778ac9b173624ca0faacd22ef4724 usage of struct dmtimer_clockevent backported to the platform timer code still used in linux-5.4.y stable kernel. Needed to backport upstream commit 3efe7a878a11c13b5297057bfc1e5639ce1241ce and commit 25de4ce5ed02994aea8bc111d133308f6fd62566. Earlier kernels use mach-omap2/timer instead of drivers/clocksource as these kernels still depend on legacy platform code for booting. > Can you fix this up to make this obvious what is happening here and make > a patch series that I can take without editing changelog text? Sure I'll repost the series, assuming the above is OK for description :) Please let me know if you need further details added. Hmm so what's the correct way to prevent automatically applying these into the earlier stable kernels? For earlier stable kernels, these changes depend on at least some additional clock related changes. Regards, Tony