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 X-Spam-Level: X-Spam-Status: No, score=-2.3 required=3.0 tests=DKIM_INVALID,DKIM_SIGNED, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id C827DC04AA7 for ; Mon, 13 May 2019 12:51:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 8915721019 for ; Mon, 13 May 2019 12:51:08 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=fail reason="signature verification failed" (1024-bit key) header.d=lunn.ch header.i=@lunn.ch header.b="MfBb+Vk7" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730016AbfEMMvH (ORCPT ); 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