Received: by 2002:ac0:8c8e:0:0:0:0:0 with SMTP id r14csp148605ima; Tue, 5 Feb 2019 20:05:36 -0800 (PST) X-Google-Smtp-Source: AHgI3IYRyf5xGSX6pBgLaF6ToIf0EVFpEWwDGuBkuI/NTEvdXOGm6rLXAUrJDCiy7meECsbh7nhT X-Received: by 2002:a17:902:6949:: with SMTP id k9mr8667379plt.85.1549425936895; Tue, 05 Feb 2019 20:05:36 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1549425936; cv=none; d=google.com; s=arc-20160816; b=oflj59jw19KOeTGuMU0ps0vtw0LslKPCeL6nWSieVWXvW+TphPpfLHzdkc/5rw2HMb Ho7pquYrVk3G0N2X8ipyfaAXgt/O7FUpKq5YP0SqpZd5hC7HyLLgnqwFQp6fSisUqWBS tugsF4z5BbhLcQ3IHCJgHsW25nuIQuW4KyTkfTc8TadVkcipnmk5uily5NT9jahkPJaj Qrv52ui4uaeRMDsWjVCbG+uKntYZRUS+If/5eohi73axMbDB6WGWFFWOgDaZmW9XPgAy Rr08s73wYfJVv5eoDkXdR/9sbUiKDWm3WheISQyXLSPREUte0uglX8E/e7t5ooDens8W li9A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:content-transfer-encoding:mime-version :user-agent:references:in-reply-to:date:cc:to:from:subject :message-id; bh=WwGXsGcQRjetG5D3s7jtl+PSYkWgU79EtEdDyoKdGm4=; b=FExDZQjXlg84Tmj33fMQVC0ZEcy8JEU4olfEFvS0hsfuEzL3jWH5bvTfNcPTcerES4 2Qvp5VeSf3z4gwNd3/JNXb9yyBSUkjK7XH9dVaolo5mzhFiCfkcMtw8Dnb+xkn4GkLX/ A4CpFnBV3y3iLYONn5WvUlf83+JPb9UcBzh1l1IDt3Zp4YD/Khk1xzCkgG7ysPotBtai u++BBCfVxnxUt7VGPgsl/VNxNFQTvZyxPBMt6vhM5x5/UJnT8k+WU3h0ZFzbY0/5A4N/ 3kNPT5B0dC5apd6XLrHKjT91itLFm54jtuC8VUBWakFZQDS/fJ/scVyYNN9ENt5lYXa3 KeOA== ARC-Authentication-Results: i=1; mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id j5si4604700pgq.82.2019.02.05.20.05.21; Tue, 05 Feb 2019 20:05:36 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727348AbfBFDts (ORCPT + 99 others); Tue, 5 Feb 2019 22:49:48 -0500 Received: from smtprelay0197.hostedemail.com ([216.40.44.197]:49230 "EHLO smtprelay.hostedemail.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725981AbfBFDts (ORCPT ); Tue, 5 Feb 2019 22:49:48 -0500 Received: from filter.hostedemail.com (clb03-v110.bra.tucows.net [216.40.38.60]) by smtprelay05.hostedemail.com (Postfix) with ESMTP id 7E63F180268C3; Wed, 6 Feb 2019 03:49:47 +0000 (UTC) X-Session-Marker: 6A6F6540706572636865732E636F6D X-Spam-Summary: 2,0,0,,d41d8cd98f00b204,joe@perches.com,:::::::::::,RULES_HIT:41:355:379:599:988:989:1260:1277:1311:1313:1314:1345:1359:1437:1515:1516:1518:1534:1537:1560:1593:1594:1711:1714:1730:1747:1777:1792:2110:2198:2199:2393:2559:2562:2731:2828:3138:3139:3140:3141:3142:3622:3865:3867:3870:3874:4321:5007:6119:10004:10400:10848:11232:11658:11914:12740:12760:12895:13069:13311:13357:13439:13972:14659:21080:21611:21627:30054:30091,0,RBL:47.151.153.53:@perches.com:.lbl8.mailshell.net-62.8.0.100 64.201.201.201,CacheIP:none,Bayesian:0.5,0.5,0.5,Netcheck:none,DomainCache:0,MSF:not bulk,SPF:fn,MSBL:0,DNSBL:neutral,Custom_rules:0:0:0,LFtime:28,LUA_SUMMARY:none X-HE-Tag: tax28_8f8a93bc9c910 X-Filterd-Recvd-Size: 1239 Received: from XPS-9350.home (unknown [47.151.153.53]) (Authenticated sender: joe@perches.com) by omf06.hostedemail.com (Postfix) with ESMTPA; Wed, 6 Feb 2019 03:49:46 +0000 (UTC) Message-ID: Subject: Re: [PATCH v2 2/2] r8169: Avoid pointer aliasing From: Joe Perches To: Paul Zimmerman Cc: Eric Dumazet , Heiner Kallweit , David Miller , linux-kernel@vger.kernel.org, linux-netdev@vger.kernel.org Date: Tue, 05 Feb 2019 19:49:45 -0800 In-Reply-To: <20190205202522.2ab2ea40430e817d4f01cc4e@gmail.com> References: <20190205192733.b4bd98988d1e4695f740d445@gmail.com> <9e4332bf41d5d58a4fa6cf138fc9ea3b2f9a488f.camel@perches.com> <20190205202522.2ab2ea40430e817d4f01cc4e@gmail.com> Content-Type: text/plain; charset="ISO-8859-1" User-Agent: Evolution 3.30.1-1build1 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 2019-02-05 at 20:25 -0700, Paul Zimmerman wrote: > GCC does not lay out stack variables in the same order that they are > declared. True. Most stack variables could be assigned to a register. cheers, Joe