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 B830AC6778C for ; Wed, 4 Jul 2018 10:00:27 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6B6E6244CD for ; Wed, 4 Jul 2018 10:00:27 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 6B6E6244CD 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 S1753733AbeGDKAY (ORCPT ); Wed, 4 Jul 2018 06:00:24 -0400 Received: from Galois.linutronix.de ([146.0.238.70]:46866 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753600AbeGDKAW (ORCPT ); Wed, 4 Jul 2018 06:00:22 -0400 Received: from p4fea482e.dip0.t-ipconnect.de ([79.234.72.46] helo=nanos) by Galois.linutronix.de with esmtpsa (TLS1.2:DHE_RSA_AES_256_CBC_SHA256:256) (Exim 4.80) (envelope-from ) id 1faea4-0003cF-D2; Wed, 04 Jul 2018 12:00:12 +0200 Date: Wed, 4 Jul 2018 12:00:11 +0200 (CEST) From: Thomas Gleixner To: Marc Zyngier cc: Daniel Lezcano , Samuel Holland , Maxime Ripard , Chen-Yu Tsai , Catalin Marinas , Will Deacon , linux-arm-kernel@lists.infradead.org, linux-kernel@vger.kernel.org, linux-sunxi@googlegroups.com, Mark Rutland Subject: Re: [PATCH 0/2] Allwinner A64 timer workaround In-Reply-To: <1d75c538-9166-5eec-a08c-b168f9770bd1@arm.com> Message-ID: References: <20180511022751.9096-1-samuel@sholland.org> <2c16d5ab-38f7-8f3e-875c-19e8032f440a@arm.com> <5283f98e-6443-db7a-fe51-6379ed19002c@arm.com> <24b78819-5e3f-431f-3987-f7409742ef07@linaro.org> <1d75c538-9166-5eec-a08c-b168f9770bd1@arm.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 Wed, 4 Jul 2018, Marc Zyngier wrote: > On 04/07/18 09:23, Daniel Lezcano wrote: > > > > If the patches fix a bug which already exist, it makes sense to > > propagated the fix back to the stable versions. > > That's your call, but I'm not supportive of that decision, specially as > we have information from the person developing the workaround that this > doesn't fully address the issue. The patches should not be applied at all. Simply because they don't fix the issue completely. >From a quick glance at various links and information about this, this very much smells like the FSL_ERRATUM_A008585. Has that been tried? It looks way more robust than the magic 11 bit crystal ball logic. Thanks, tglx