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[2620:137:e000::1:18]) by mx.google.com with ESMTPS id c2-20020a170902aa4200b0014efce8c5e3si3139099plr.542.2022.02.25.18.28.41 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 25 Feb 2022 18:28:42 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) client-ip=2620:137:e000::1:18; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=vKYh1x0G; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=kernel.org Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id B2CF72827B7; Fri, 25 Feb 2022 17:56:24 -0800 (PST) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S242227AbiBYPjA (ORCPT + 99 others); Fri, 25 Feb 2022 10:39:00 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:57524 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S242221AbiBYPi5 (ORCPT ); Fri, 25 Feb 2022 10:38:57 -0500 Received: from ams.source.kernel.org (ams.source.kernel.org [145.40.68.75]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 40BB81CF0A6 for ; Fri, 25 Feb 2022 07:38:25 -0800 (PST) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by ams.source.kernel.org (Postfix) with ESMTPS id DF86BB82D04 for ; Fri, 25 Feb 2022 15:38:23 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 95084C340F6 for ; Fri, 25 Feb 2022 15:38:22 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1645803502; bh=Qp6aGn+gfpXQjgM8XZgj/bDqpiOmsivhTJEvuTz+fDA=; h=References:In-Reply-To:From:Date:Subject:To:Cc:From; b=vKYh1x0GLneHhE/0yXjH1+P2NcfgvGJ3rCBu/pBYythxhJYskOaY0cmc7hWO4hiPz 68HtLHzakEQIt9ab4Oh9cw7bOTzhwh+6FB/vhIbFOQU+sQerX5/FIxGW+iEGN9b2NJ QbnFnvcW6iL0ElUVoOpWEik/X3w82RwNCbmdYvQWoxvBQTqI1yS7C5hgMgwx1/6750 MR2ctkpc7CDcrWOGB07E7GwZY4AOzEqk1VQyG+269hgNHnaTA2X2g97sWnSVV8HZV/ vY5Aw9WvYq/cnbeUBCD33rTerbIScpj1+E3HCzJftDyqekClorrI5KpA0qMfwcuJfb Z+RUrCbwGQZqg== Received: by mail-yb1-f169.google.com with SMTP id e140so6599586ybh.9 for ; Fri, 25 Feb 2022 07:38:22 -0800 (PST) X-Gm-Message-State: AOAM531O7aGf1SgoplQFeo0q6EGLultl1qh0siN7jA9LZ9xtmbmmxH/R GhpST9Oki1ccjgKb8rXf0G+Eq7nxxZpvWGQ9tF8= X-Received: by 2002:a25:6c43:0:b0:61d:e94b:3c55 with SMTP id h64-20020a256c43000000b0061de94b3c55mr7907145ybc.224.1645803501561; Fri, 25 Feb 2022 07:38:21 -0800 (PST) MIME-Version: 1.0 References: <20220222165212.2005066-7-kaleshsingh@google.com> <202202231727.L621fVgD-lkp@intel.com> <875yp63ptg.wl-maz@kernel.org> <89c48bd2a9b32b4607d1515714fa3c1b@kernel.org> <16f47fa9-90b4-0b5c-33cb-cb004fc39266@intel.com> In-Reply-To: <16f47fa9-90b4-0b5c-33cb-cb004fc39266@intel.com> From: Ard Biesheuvel Date: Fri, 25 Feb 2022 16:38:10 +0100 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [kbuild-all] Re: [PATCH v2 6/9] KVM: arm64: Detect and handle hypervisor stack overflows To: "Chen, Rong A" Cc: Marc Zyngier , Kalesh Singh , kernel test robot , llvm@lists.linux.dev, kbuild-all@lists.01.org, Will Deacon , Quentin Perret , Fuad Tabba , Suren Baghdasaryan , Android Kernel Team , Catalin Marinas , James Morse , Alexandru Elisei , Suzuki K Poulose , Mark Rutland , Pasha Tatashin , Joey Gouly , Peter Collingbourne , Andrew Scull , Paolo Bonzini , Zenghui Yu , Linux ARM , Linux Kernel Mailing List , kvmarm Content-Type: text/plain; charset="UTF-8" X-Spam-Status: No, score=-2.3 required=5.0 tests=BAYES_00,DKIMWL_WL_HIGH, DKIM_SIGNED,DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, RDNS_NONE,SPF_HELO_NONE,T_SCC_BODY_TEXT_LINE autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Fri, 25 Feb 2022 at 03:12, Chen, Rong A wrote: > > > > Hi Marc, Ard, > > We have ignored the warning related to asmlinkage according to the below > advice: > > https://lore.kernel.org/lkml/CAMj1kXHrRYagSVniSetHdG15rkQS+fm4zVOtN=Zda3W0QaEoJA@mail.gmail.com/ > Excellent! Thanks for implementing this - I wasn't aware that you adopted this suggestion. > do you want the bot ignore such warning if asmlinkage not specified? > Even though I think this warning has little value, I think asmlinkage is sufficient for us to avoid it for symbols that are exported for use by assembler code. So I don't think this additional change is needed. -- Ard.