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 EAFD2ECAAA1 for ; Mon, 31 Oct 2022 18:49:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229832AbiJaStu (ORCPT ); Mon, 31 Oct 2022 14:49:50 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:43678 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229686AbiJaStk (ORCPT ); Mon, 31 Oct 2022 14:49:40 -0400 Received: from mail-pj1-x102c.google.com (mail-pj1-x102c.google.com [IPv6:2607:f8b0:4864:20::102c]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id B40BC13E02 for ; Mon, 31 Oct 2022 11:49:39 -0700 (PDT) Received: by mail-pj1-x102c.google.com with SMTP id m2so11137175pjr.3 for ; Mon, 31 Oct 2022 11:49:39 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date:message-id:reply-to; bh=Lxm0tOK3Vx5nF8SDGL3j6VCEiNOGUWGpFOfZSVRl4Q0=; b=dOy7Jsm/Wvr5hNNq9vJEoD4OWCeXsBR7deJofjuBIAcUc16ebM7ARjXPnheoVsxbF1 ZG4Mqgqbo4eZioe04nZ6HTuoDg4PevCGUcBQcu0soYHhKyEuxreepQ/GnsEPzFjFaaxb Z5gAt/IocAfwIpR12qVY5NH2K13ckqtcJvEMAGPF/q8FOrpkX4qkk4cyOzSfnyoGPuTr tdEGURD9OqxMuCO1gnM7SGnhYvAver2R7/nfCULexsz8ct6l2Yu5TGFUAwv0NFa4jwN5 TIGfLTuzl4c7v7kxRanXEW9X2fooUmE2LOckFSvU7QLnE3FFvIwNl7KoOvOuI5/FOm+P OZAA== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date :message-id:reply-to; bh=Lxm0tOK3Vx5nF8SDGL3j6VCEiNOGUWGpFOfZSVRl4Q0=; b=R3nP8XvGSZY0VlPtuAsJYEK21ymuxG2ruWDI0Lcb1XXUbLM45SubCt6y3aj779LDQr jyHx92jCcWagHzksMTQkB1ewKMHkIadNAbjrz4/d3Eusj49cTNJZ+34+3BNnbQXHKqZA fH4D12XIrC/IneKSTx0uGovbr8r8Dkh80bNq0Ih5ih6h50FrXthCOCPRDxcAJTdYI8+6 WEX8TaBNBCLCelXyJaqG9qLBTOc55G7co9y49skSJVjBZ6H4Ybrom4VK3TuqhPLOGdf/ CT36raha/lUf5CHJfSoS2kerhdGMHVbF73sJHglxErbWXXFZMpqxBha/fDRvxvZgykGl mTjw== X-Gm-Message-State: ACrzQf1zKtzWdU6GjUQ452CCepZRSoiLxxyvb8prvWt45l6d8oTcYU9Z SF/D8kVyxRRljOgh+wdPxAeXBg== X-Google-Smtp-Source: AMsMyM6obrQ+rSpRYZSJSEMaps9fWGsBRg5Sq4mtrzU1VePgVAgQt9XJE/98esyY1+dNNInPUs0qEA== X-Received: by 2002:a17:902:8e88:b0:185:3cea:6335 with SMTP id bg8-20020a1709028e8800b001853cea6335mr15749373plb.96.1667242179135; Mon, 31 Oct 2022 11:49:39 -0700 (PDT) Received: from google.com (7.104.168.34.bc.googleusercontent.com. [34.168.104.7]) by smtp.gmail.com with ESMTPSA id k13-20020a170902c40d00b00174c1855cd9sm4779726plk.267.2022.10.31.11.49.38 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 31 Oct 2022 11:49:38 -0700 (PDT) Date: Mon, 31 Oct 2022 18:49:35 +0000 From: Sean Christopherson To: Vipin Sharma Cc: pbonzini@redhat.com, dmatlack@google.com, andrew.jones@linux.dev, wei.w.wang@intel.com, kvm@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: [PATCH v7 3/5] KVM: selftests: Add atoi_paranoid() to catch errors missed by atoi() Message-ID: References: <20221031173819.1035684-1-vipinsh@google.com> <20221031173819.1035684-4-vipinsh@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20221031173819.1035684-4-vipinsh@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, Oct 31, 2022, Vipin Sharma wrote: > atoi() doesn't detect errors. There is no way to know that a 0 return > is correct conversion or due to an error. > > Introduce atoi_paranoid() to detect errors and provide correct > conversion. Replace all atoi() calls with atoi_paranoid(). > > Signed-off-by: Vipin Sharma > Suggested-by: David Matlack > Suggested-by: Sean Christopherson > > --- Reviewed-by: Sean Christopherson