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_HELO_NONE,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 A0303C43613 for ; Mon, 24 Jun 2019 19:48:57 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6F43720674 for ; Mon, 24 Jun 2019 19:48:57 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729023AbfFXTs5 (ORCPT ); Mon, 24 Jun 2019 15:48:57 -0400 Received: from mga06.intel.com ([134.134.136.31]:53989 "EHLO mga06.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728750AbfFXTs4 (ORCPT ); Mon, 24 Jun 2019 15:48:56 -0400 X-Amp-Result: SKIPPED(no attachment in message) X-Amp-File-Uploaded: False Received: from orsmga002.jf.intel.com ([10.7.209.21]) by orsmga104.jf.intel.com with ESMTP/TLS/DHE-RSA-AES256-GCM-SHA384; 24 Jun 2019 12:48:56 -0700 X-IronPort-AV: E=Sophos;i="5.63,413,1557212400"; d="scan'208";a="172096113" Received: from rchatre-mobl.amr.corp.intel.com (HELO [10.24.14.145]) ([10.24.14.145]) by orsmga002-auth.jf.intel.com with ESMTP/TLS/AES256-SHA; 24 Jun 2019 12:48:56 -0700 Subject: Re: [PATCH] x86/resctrl: Prevent possible overrun during bitmap operations To: Sasha Levin , tglx@linutronix.de, fenghua.yu@intel.com, bp@alien8.de Cc: mingo@redhat.com, hpa@zytor.com, x86@kernel.org, stable@vger.kernel.org References: <58c9b6081fd9bf599af0dfc01a6fdd335768efef.1560975645.git.reinette.chatre@intel.com> <20190622181348.648872084E@mail.kernel.org> From: Reinette Chatre Message-ID: <978e4571-7e77-8318-7ff7-efcb90d8366f@intel.com> Date: Mon, 24 Jun 2019 12:48:53 -0700 User-Agent: Mozilla/5.0 (Windows NT 6.3; WOW64; rv:60.0) Gecko/20100101 Thunderbird/60.7.1 MIME-Version: 1.0 In-Reply-To: <20190622181348.648872084E@mail.kernel.org> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org Hi Sasha, On 6/22/2019 11:13 AM, Sasha Levin wrote: > Hi, > > [This is an automated email] > > This commit has been processed because it contains a "Fixes:" tag, > fixing commit: e651901187ab x86/intel_rdt: Introduce "bit_usage" to display cache allocations details. > > The bot has tested the following trees: v5.1.12, v4.19.53. > > v5.1.12: Build OK! > v4.19.53: Failed to apply! Possible dependencies: > Unable to calculate > > > How should we proceed with this patch? The files modified in this patch moved after v4.19. I can send an updated patch for v4.19 stable but will wait until the original is merged into Linus's tree to ensure the commit ids referenced are accurate. Reinette