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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id B5DC8C433FE for ; Mon, 23 May 2022 11:19:54 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S234662AbiEWLTK (ORCPT ); Mon, 23 May 2022 07:19:10 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:45924 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234629AbiEWLTH (ORCPT ); Mon, 23 May 2022 07:19:07 -0400 Received: from szxga08-in.huawei.com (szxga08-in.huawei.com [45.249.212.255]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id AC9CA4339D for ; Mon, 23 May 2022 04:19:06 -0700 (PDT) Received: from dggpemm500021.china.huawei.com (unknown [172.30.72.57]) by szxga08-in.huawei.com (SkyGuard) with ESMTP id 4L6FDJ6SpVz1JC8d; Mon, 23 May 2022 19:17:36 +0800 (CST) Received: from dggpemm500001.china.huawei.com (7.185.36.107) by dggpemm500021.china.huawei.com (7.185.36.109) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 23 May 2022 19:19:04 +0800 Received: from [10.174.177.243] (10.174.177.243) by dggpemm500001.china.huawei.com (7.185.36.107) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256) id 15.1.2375.24; Mon, 23 May 2022 19:19:04 +0800 Message-ID: <36746fdd-4021-e491-f8cb-40e372439c67@huawei.com> Date: Mon, 23 May 2022 19:19:03 +0800 MIME-Version: 1.0 User-Agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64; rv:91.0) Gecko/20100101 Thunderbird/91.5.1 Subject: Re: [PATCH v4 0/2] arm64: Fix kcsan test_barrier fail and panic Content-Language: en-US To: , , , , CC: , , , References: <20220523112641.170060-1-wangkefeng.wang@huawei.com> From: Kefeng Wang In-Reply-To: <20220523112641.170060-1-wangkefeng.wang@huawei.com> Content-Type: text/plain; charset="UTF-8"; format=flowed Content-Transfer-Encoding: 7bit X-Originating-IP: [10.174.177.243] X-ClientProxiedBy: dggems703-chm.china.huawei.com (10.3.19.180) To dggpemm500001.china.huawei.com (7.185.36.107) X-CFilter-Loop: Reflected Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Sorry for using wrong script with uncorrected maintainers, please ignore. On 2022/5/23 19:26, Kefeng Wang wrote: > Fix selftest and kcsan_test() module fail when KCSAN_STRICT > and KCSAN_WEAK_MEMORY enabled on ARM64. > > v4: > - Use 2 spaces after a sentence-ending '.', suggested by Marco > - Collect Ack/Review > > v3: > - update dma_mb()'s description and add the generic definition, > also asm-generic change is moved into patch1, suggested by Marco. > v2: > - Add documents about dma_mb(), suggested by Mike and Will. > - drop Fixes tag and update changlog, suggested by Mike. > > > Kefeng Wang (2): > asm-generic: Add memory barrier dma_mb() > arm64: kcsan: Support detecting more missing memory barriers > > Documentation/memory-barriers.txt | 11 ++++++----- > arch/arm64/include/asm/barrier.h | 12 ++++++------ > include/asm-generic/barrier.h | 8 ++++++++ > 3 files changed, 20 insertions(+), 11 deletions(-) >