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=-1.0 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 A0CAFC43441 for ; Thu, 8 Nov 2018 22:38:50 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 70E1720857 for ; Thu, 8 Nov 2018 22:38:50 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 70E1720857 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=linutronix.de 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 S1729133AbeKIIQ2 (ORCPT ); Fri, 9 Nov 2018 03:16:28 -0500 Received: from Galois.linutronix.de ([146.0.238.70]:45448 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727771AbeKIIQ1 (ORCPT ); Fri, 9 Nov 2018 03:16:27 -0500 Received: from p4fea46ac.dip0.t-ipconnect.de ([79.234.70.172] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1gKswd-0006n5-38; Thu, 08 Nov 2018 23:38:35 +0100 Date: Thu, 8 Nov 2018 23:38:33 +0100 (CET) From: Thomas Gleixner To: Greg KH cc: "Paul E. McKenney" , Dan Williams , Peter Zijlstra , Ingo Molnar , Linux Kernel Mailing List , X86 ML , John Stultz , acme@redhat.com, frederic@kernel.org, Jonathan Corbet , Andy Lutomirski , Marc Zyngier , Daniel Lezcano , Dave Hansen , Ard Biesheuvel , Will Deacon , Mark Brown Subject: Re: [patch 2/2] Documentation/process: Add tip tree handbook In-Reply-To: <20181108210615.GC22691@kroah.com> Message-ID: References: <20181107171010.421878737@linutronix.de> <20181107171149.165693799@linutronix.de> <20181108074012.GD20032@gmail.com> <20181108091251.GL9761@hirez.programming.kicks-ass.net> <20181108174006.GP4170@linux.ibm.com> <20181108210615.GC22691@kroah.com> User-Agent: Alpine 2.21 (DEB 202 2017-01-01) MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII X-Linutronix-Spam-Score: -1.0 X-Linutronix-Spam-Level: - X-Linutronix-Spam-Status: No , -1.0 points, 5.0 required, ALL_TRUSTED=-1,SHORTCIRCUIT=-0.0001 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 8 Nov 2018, Greg KH wrote: > On Thu, Nov 08, 2018 at 08:58:32PM +0100, Thomas Gleixner wrote: > > Fixes: 1234567890AB ("subsys/comp: Short summary") > > Backport-to: 4.14 > > Ick, no. Just stick to the "Fixes:" tag. My scripts can now track when > a patch is backported to a stable tree so that I know to apply it to > older ones despite the original patch showing up in a newer release. Fine with me. I just did a few stats. commits between 4.19-rc1 and 4.19-final: Total commits: 2098 Total Cc: stable 334 Cc: stable 119 35% Cc: stable #kver 10 3% Cc: stable Revert 0 0% Cc: stable Fixes 123 37% Cc: stable Fixes #kver 81 24% Total Fixes only 584 Fixes only > 4.18 227 39% Fixes only <= 4.18 357 61% and between 4.19 and todays top of tree: Total commits: 12947 Total Cc: stable 251 Cc: stable 85 34% Cc: stable #kver 28 11% Cc: stable reverts 2 1% Cc: stable Fixes 79 31% Cc: stable Fixes #kver 55 22% Total Fixes only 835 Fixes only > 4.19 830 99% Fixes only <= 4.19 5 1% Not much change in the 'cc stable' ratio for those without any information and for those with Fixes tag and #kver. The cc stable + kver and the cc stable + Fixes differ, but their sum is roughly the same. But the real interesting change is that between 4.19-rc1 and 4.19-final the number of Fixes only (no CC stable) commits which fix a commit in 4.18 or earlier is rather high, while the same category on post 4.19 is minimal. I'll run a larger and more detailed scan to figure out whether there is a trend or this is just random. Thanks, tglx