Received: by 2002:a25:4158:0:0:0:0:0 with SMTP id o85csp5188396yba; Mon, 13 May 2019 06:53:22 -0700 (PDT) X-Google-Smtp-Source: APXvYqwOfFe+B0ii8ex+prpYcafgZkwBtUUkDfRC0Gq0n8NPlCLlLzoB5XV+Xjhi+eQaVIcb5wZK X-Received: by 2002:a17:902:a503:: with SMTP id s3mr30231787plq.16.1557755602447; Mon, 13 May 2019 06:53:22 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1557755602; cv=none; d=google.com; s=arc-20160816; b=qLQa0+SkVILMDQ9EyZPvYH1BqWiA4xerrFEVYfY5rE1xRHtRb63eXamGS+FswDo22M gUL1jrgcjaM1wYT8q3i5qQqYVLMEgv4GtxEEffJfJiRchPCcWmgZAGGcobYdr/aNHOw4 xdspGSxTOx7dxeeGlcF8sJPzuxeX9d5RQFwfRO2o0/frITQhB5g+sMptdq3vCO8XguRT yv/e/O69rSmFQ8pDBpWEU+6pwPxU9MeAVN5ib9qB/emx6NIE6eM3/Hd3GXY4RNNYof8j BOtcmSUkjgbdtwQlhOA7+3KgxW/tW0ZiGT192N27xYeVYj7f5WIZblLfrHP2hrpUdFm0 dbyw== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:user-agent:in-reply-to :content-disposition:mime-version:references:message-id:subject:cc :to:from:date:dkim-signature; bh=hGvdGIUxp9e75fiwBQkqtijB9g3Z7ApL0Bq8e9122vM=; b=swxZLDmakm+all6+/jAIyQAcTjgp3l+Fm9Klpcit1YoZ7+X9OVDoVdqux75yd7NxFv FcZYu/vbhEy4Z02KlQSHXxeKv137ZMyu68euf5CfKZL+4M2JkrMvtjr8tairFupXmJWa ASHYAK/oACogadybm8MXgK24AHRPrtMR+iJU2BrxUJwADZ8z9IZmW9a5eBc7x4EcBZ2m yNMGuIjQpE8xnptanJQsvxZyiIz0I/0UOQFgPnUd+OGh1YO2oJC12ALBCMb5N8lLgGpC z1fdBrlEI1nnv0DFAcyxf8649d5QxFuCfns/saaqxwGEPmXrWmmwx9mSIqHOdkhWpxnt xl5g== ARC-Authentication-Results: i=1; mx.google.com; dkim=fail header.i=@lunn.ch header.s=20171124 header.b=MfBb+Vk7; 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 b32si17380423pla.294.2019.05.13.06.53.05; Mon, 13 May 2019 06:53:22 -0700 (PDT) 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; dkim=fail header.i=@lunn.ch header.s=20171124 header.b=MfBb+Vk7; 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 S1730012AbfEMMvH (ORCPT + 99 others); Mon, 13 May 2019 08:51:07 -0400 Received: from vps0.lunn.ch ([185.16.172.187]:33723 "EHLO vps0.lunn.ch" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727818AbfEMMvH (ORCPT ); Mon, 13 May 2019 08:51:07 -0400 DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=lunn.ch; s=20171124; h=In-Reply-To:Content-Type:MIME-Version:References:Message-ID: Subject:Cc:To:From:Date:Sender:Reply-To:Content-Transfer-Encoding:Content-ID: Content-Description:Resent-Date:Resent-From:Resent-Sender:Resent-To:Resent-Cc :Resent-Message-ID:List-Id:List-Help:List-Unsubscribe:List-Subscribe: List-Post:List-Owner:List-Archive; bh=hGvdGIUxp9e75fiwBQkqtijB9g3Z7ApL0Bq8e9122vM=; b=MfBb+Vk7qNS+UXmPw2yb1dBZ6N ssBfcSllZs7ks/5I5h6swJJhr5q5VBoaf93KM5+/GaPT5w/RaGYjHBjKS9EE6ftOfuLAQwwjTuQQ6 vPUON91F0UPtMOuM6HH+F7Q4NMS29xptaMEFpFwVI+LSifsXQDgpW5dbnd/NjtWd7SHk=; Received: from andrew by vps0.lunn.ch with local (Exim 4.89) (envelope-from ) id 1hQAQ3-0008Dj-9b; Mon, 13 May 2019 14:51:03 +0200 Date: Mon, 13 May 2019 14:51:03 +0200 From: Andrew Lunn To: Serge Semin , g@lunn.ch Cc: Vicente Bergas , Heiner Kallweit , Russell King , Florian Fainelli , netdev@vger.kernel.org, linux-kernel@vger.kernel.org Subject: Re: net: phy: realtek: regression, kernel null pointer dereference Message-ID: <20190513125103.GC28969@lunn.ch> References: <16f75ff4-e3e3-4d96-b084-e772e3ce1c2b@gmail.com> <742a2235-4571-aa7d-af90-14c708205c6f@gmail.com> <11446b0b-c8a4-4e5f-bfa0-0892b500f467@gmail.com> <61831f43-3b24-47d9-ec6f-15be6a4568c5@gmail.com> <0f16b2c5-ef2a-42a1-acdc-08fa9971b347@gmail.com> <20190513102941.4ocb3tz3wmh3pj4t@mobilestation> <20190513105104.af7d7n337lxqac63@mobilestation> <20190513124225.odm3shcfo3tsq6xk@mobilestation> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190513124225.odm3shcfo3tsq6xk@mobilestation> User-Agent: Mutt/1.5.23 (2014-03-12) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org > Ahh, I see. Then using lock-less version of the access methods must fix the > problem. You could try something like this: Kunihiko Hayash is way ahead of you. Andrew