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 30865C41513 for ; Wed, 16 Aug 2023 20:52:11 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1346276AbjHPUvk (ORCPT ); Wed, 16 Aug 2023 16:51:40 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:56396 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1346272AbjHPUvQ (ORCPT ); Wed, 16 Aug 2023 16:51:16 -0400 Received: from mail-pj1-x1036.google.com (mail-pj1-x1036.google.com [IPv6:2607:f8b0:4864:20::1036]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 6B7E01BE6; Wed, 16 Aug 2023 13:51:15 -0700 (PDT) Received: by mail-pj1-x1036.google.com with SMTP id 98e67ed59e1d1-26b4cf4f7b9so2376817a91.1; Wed, 16 Aug 2023 13:51:15 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20221208; t=1692219075; x=1692823875; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:from:to:cc:subject:date:message-id :reply-to; bh=/36aw1xmDrnWgBaeP2BLSKHpeS0jtx76RKcl679jDEk=; b=mlDFmkAWIAw706A5Q/2UucACgJXVkzTw8eFJOQn88+CxlaPt4SaCnnTRx27vUUv7cB Zze96Ru+A+82vcL4rlMlApTPMi+tbSLnFJIFH+vPsFy1dVKvGjbBn0Phe+M+9RX1fnvK uddcN27TPeQWvy1yrDfLBjAMooFbkrYoIW8RNE5HvigZhpXIVsFLiclGGN6w2s/qtpVu bAMiDg9eO/YNn1twwpJs+i9ieBOkRI2PBc4vyJSaw2jmNcUSDWXmPBi6UliFZ69NSjLe /Wu324aj48ZsND83y52LwIU42qOiUNlYAngPwqS/fkFFAnrMsqbDCf3BFIWFensD2oi5 VN8A== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20221208; t=1692219075; x=1692823875; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:sender:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=/36aw1xmDrnWgBaeP2BLSKHpeS0jtx76RKcl679jDEk=; b=UO6Nbc/oYYcpyiyCQkFIqJxU9zaxy39n2QATK7EbTBsAWgcYFglcumCQQNOzhQbcXx wn0TU/MajWgktPm16yBiqa26PCNcfyN5bH9yIA8MtdGDKKxEuRzqHCPppqx7hxtgANYn +yOJR1kLp9gafsWhfURsXOhF7ejbo7LUbQW57rMhr7KJyWGhoCyLB9c+TZjj2FjkamC8 7mAUnX+9hDbGpg66nL/OqwVB5QpeFpc2z4BPX+85CyJTTtzYRTqqB62ZN8vimYSi4LwY l5V3+GHgSISC54OA6CO9yoLk8CWStJXsGBkhKyfJ1mVsres+EbW52SG8wtWixu3/cRif glXA== X-Gm-Message-State: AOJu0Yw2dxKQIQ/+zU4tLXbpQzk0/uiAzZoXFb/Zedjkr6u+7s4fHqfc FB2utLAuE2PmYsbL/LNcpH8= X-Google-Smtp-Source: AGHT+IH6RRSnxIiIpBLIFNY2G3iT+tDaGfu5cKJmIyOKRP68LL2kjCEw3UMmAp1y9w1z/eTcBHh3kg== X-Received: by 2002:a17:90a:4a88:b0:267:f8a2:300a with SMTP id f8-20020a17090a4a8800b00267f8a2300amr2351459pjh.7.1692219074627; Wed, 16 Aug 2023 13:51:14 -0700 (PDT) Received: from localhost ([2620:10d:c090:400::5:93bd]) by smtp.gmail.com with ESMTPSA id bo24-20020a17090b091800b00262d6ac0140sm154473pjb.9.2023.08.16.13.51.13 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 16 Aug 2023 13:51:14 -0700 (PDT) Sender: Tejun Heo Date: Wed, 16 Aug 2023 10:51:12 -1000 From: Tejun Heo To: "Gustavo A. R. Silva" Cc: Zefan Li , Johannes Weiner , cgroups@vger.kernel.org, linux-kernel@vger.kernel.org, linux-hardening@vger.kernel.org Subject: Re: [PATCH v2][next] cgroup: Avoid -Wstringop-overflow warnings Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hello, On Wed, Aug 16, 2023 at 02:50:16PM -0600, Gustavo A. R. Silva wrote: > Change the notation from pointer-to-array to pointer-to-pointer. > With this, we avoid the compiler complaining about trying > to access a region of size zero as an argument during function > calls. Haha, I thought the functions were actually accessing the memory. This can't be an intended behavior on the compiler's side, right? Thanks. -- tejun