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[23.128.96.34]) by mx.google.com with ESMTPS id kr5-20020a056a004b4500b006ce115d5514si3415365pfb.324.2023.12.09.11.12.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Sat, 09 Dec 2023 11:12:16 -0800 (PST) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 as permitted sender) client-ip=23.128.96.34; Authentication-Results: mx.google.com; dkim=pass header.i=@kernel.org header.s=k20201202 header.b=JwYAfxWz; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.34 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 out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id 8A26180597A5; Sat, 9 Dec 2023 11:12:13 -0800 (PST) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.11 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229501AbjLITLp (ORCPT + 99 others); Sat, 9 Dec 2023 14:11:45 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:32794 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229477AbjLITLo (ORCPT ); Sat, 9 Dec 2023 14:11:44 -0500 Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6C42913A for ; Sat, 9 Dec 2023 11:11:51 -0800 (PST) Received: by smtp.kernel.org (Postfix) with ESMTPSA id D6D8FC433C7; Sat, 9 Dec 2023 19:11:47 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1702149110; bh=GoCf7IwFe+k6fUAIEuS1Bv4Gt8vQiC8SZUGXlwqNP14=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=JwYAfxWz/Df9+K8+uODNixBenK018c+cULFPVo3AGdn8/km789jmrQDYpXgRqzkEo dXIFMhQa6QVAEnDv8dCpcQJgZZEBfeAfk77SYbQdg/AkCKzowdJBQIL3NuWZRs6X5M Cf4xbmuqCaU6twGy+HbUEx73seYsDhuu9VZOV+aiqaAR1EuGQQSGyZYswNvmSHS1Ow ZImqyTovXdZri7TCWvpyaucHDdbnycZoovR2gwOvIadbKgxv94ztXZjqO3/m3Zm8LN 3kawYMtQBOH6DnmKOrXaRxebNg7Lb94raNdALbGEFvClLQ6vJ1p1YuXTDI7DcMraft wSHe2nEQI8mTQ== Date: Sat, 9 Dec 2023 19:11:45 +0000 From: Simon Horman To: Kunwu Chan Cc: jesse.brandeburg@intel.com, anthony.l.nguyen@intel.com, davem@davemloft.net, edumazet@google.com, kuba@kernel.org, pabeni@redhat.com, jeffrey.t.kirsher@intel.com, shannon.nelson@amd.com, intel-wired-lan@lists.osuosl.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, Alexander Lobakin , Kunwu Chan Subject: Re: [PATCH v5 iwl-next] i40e: Use correct buffer size in i40e_dbg_command_read Message-ID: <20231209191145.GD5817@kernel.org> References: <20231208031950.47410-1-chentao@kylinos.cn> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20231208031950.47410-1-chentao@kylinos.cn> X-Spam-Status: No, score=-1.2 required=5.0 tests=DKIMWL_WL_HIGH,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,DKIM_VALID_EF,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS,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 howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Sat, 09 Dec 2023 11:12:13 -0800 (PST) On Fri, Dec 08, 2023 at 11:19:50AM +0800, Kunwu Chan wrote: > The size of "i40e_dbg_command_buf" is 256, the size of "name" > depends on "IFNAMSIZ", plus a null character and format size, > the total size is more than 256. > > Improve readability and maintainability by replacing a hardcoded string > allocation and formatting by the use of the kasprintf() helper. > > Fixes: 02e9c290814c ("i40e: debugfs interface") > Suggested-by: Simon Horman > Suggested-by: Alexander Lobakin > Suggested-by: Tony Nguyen > Cc: Kunwu Chan > Signed-off-by: Kunwu Chan Reviewed-by: Simon Horman