Received: by 2002:a05:6a10:6d10:0:0:0:0 with SMTP id gq16csp3543593pxb; Tue, 19 Apr 2022 05:08:39 -0700 (PDT) X-Google-Smtp-Source: ABdhPJwQ7BRP7ayFkg4Fm3Pur2zLy2maO/D/qK357K1MlXvwbFa9JjsL60U/6n6dppxLR5kaBWHZ X-Received: by 2002:a05:6a00:a12:b0:504:e93f:2dd9 with SMTP id p18-20020a056a000a1200b00504e93f2dd9mr17561994pfh.49.1650370119322; Tue, 19 Apr 2022 05:08:39 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1650370119; cv=none; d=google.com; s=arc-20160816; b=024Y5q/YjSEBXOy432pj9n7bjv3Hit9x2eDz3pAh6NTU/F0x1z+oi7TUgISmoLgk8h 3GlTUiO8/wtHqk/45CgEo0GZ27F/b5zXtXQFNU0XkP301yMF95YhrdwX6pMrhU7ohKqC mNyiRkUCWb/LHwIspryt4SFjzAI8WEN7RtHryW0nOQBKBw5+rwfyiRj3+oluFFf4jXYm tPi8K4eLchJ1SyYcLzGUQ6sa4Gn1mBci/nSbb2/qr36F+9rub4I1U6PevFiq7V6iDXzY jG71glHKv+W3lYx8G3hrAraoLszSlVXwtgF8Th9d6D8wFXcbV5mPsH0iVkqiO61MYBs5 ++Cw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:content-language:content-transfer-encoding :in-reply-to:mime-version:user-agent:date:message-id:from:references :cc:to:subject; bh=ua2D/NU+7jwHS1lW4+DHQdXbE6G3TIGtkDklB2IP764=; b=p/V1TyZQJSVxJkL0R0Fs+QSosT/TC99QyBKC0JomfjPOeYQ4hY8yX+ROrIeDeThXND ddmEV0x8L4FEIXyJnYxEaT8+t0xcZJEiCGc7IffUrgma5hcHIoVp1B2OmHQVQrX9jD4T leK3ehUOmtgEo1ben9SC/7bBic+qSqGzLBohmopJe11f6+9PX0OeCxXV11Dqxvn3+768 RFetaNz8/4GovXbOZtCgb7bbF+kpIPyyf/dANWGa3vB/8VkKiYO9SlrPOmmHdur8oRR5 vQ1yePVkBlCmv2F7p6yk5voMssMw1CrUdr0BRB4oNyxlRq6tAOKvqchmpQJJYnqD4v15 3fwQ== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from out1.vger.email (out1.vger.email. [2620:137:e000::1:20]) by mx.google.com with ESMTP id l12-20020a170902f68c00b00158d4c799a2si5794857plg.181.2022.04.19.05.08.23; Tue, 19 Apr 2022 05:08:39 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349506AbiDSHpj (ORCPT + 99 others); Tue, 19 Apr 2022 03:45:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35774 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S234163AbiDSHpg (ORCPT ); Tue, 19 Apr 2022 03:45:36 -0400 Received: from ha.nfschina.com (unknown [IPv6:2400:dd01:100f:2:72e2:84ff:fe10:5f45]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 38B3014087 for ; Tue, 19 Apr 2022 00:42:51 -0700 (PDT) Received: from localhost (unknown [127.0.0.1]) by ha.nfschina.com (Postfix) with ESMTP id 9D82A1E80D17; Tue, 19 Apr 2022 15:40:38 +0800 (CST) X-Virus-Scanned: amavisd-new at test.com Received: from ha.nfschina.com ([127.0.0.1]) by localhost (ha.nfschina.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id i4hBYJhLQfsH; Tue, 19 Apr 2022 15:40:36 +0800 (CST) Received: from [172.30.21.106] (unknown [180.167.10.98]) (Authenticated sender: liqiong@nfschina.com) by ha.nfschina.com (Postfix) with ESMTPA id B1EE21E80D14; Tue, 19 Apr 2022 15:40:35 +0800 (CST) Subject: Re: [PATCH] arch/x86: use 'NULL' insteadof '0' as null pointer To: Peter Zijlstra Cc: Thomas Gleixner , Dave Hansen , x86@kernel.org, linux-kernel@vger.kernel.org, yuzhe@nfschina.com, renyu@nfschina.com References: <20220417154148.541485-1-liqiong@nfschina.com> <20220419073732.GJ2731@worktop.programming.kicks-ass.net> From: liqiong Message-ID: <3989f258-d5fb-e379-a16f-6c9a124cdcbd@nfschina.com> Date: Tue, 19 Apr 2022 15:42:46 +0800 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:52.0) Gecko/20100101 Thunderbird/52.2.1 MIME-Version: 1.0 In-Reply-To: <20220419073732.GJ2731@worktop.programming.kicks-ass.net> Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit Content-Language: en-US X-Spam-Status: No, score=-4.4 required=5.0 tests=BAYES_00,NICE_REPLY_A, RDNS_NONE,SPF_HELO_NONE,SPF_NONE,T_SCC_BODY_TEXT_LINE autolearn=ham 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 在 2022年04月19日 15:37, Peter Zijlstra 写道: > On Sun, Apr 17, 2022 at 11:41:48PM +0800, liqiong wrote: >> Sparse warns: "Using plain integer as NULL pointer". > What's wrong with that? Just a sparse warning.