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=-3.1 required=3.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,FREEMAIL_FORGED_FROMDOMAIN,FREEMAIL_FROM, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_NEOMUTT 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 7F10EC04AA7 for ; Mon, 13 May 2019 13:01:39 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 4ED60208C2 for ; Mon, 13 May 2019 13:01:39 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=gmail.com header.i=@gmail.com header.b="ZEYUPzWM" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729131AbfEMNBi (ORCPT ); Mon, 13 May 2019 09:01:38 -0400 Received: from mail-lj1-f195.google.com ([209.85.208.195]:44953 "EHLO mail-lj1-f195.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727850AbfEMNBi (ORCPT ); Mon, 13 May 2019 09:01:38 -0400 Received: by mail-lj1-f195.google.com with SMTP id e13so10836319ljl.11; Mon, 13 May 2019 06:01:36 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=date:from:to:cc:subject:message-id:references:mime-version :content-disposition:in-reply-to:user-agent; bh=QGTckQOx84uQyT8SLG7DX4oMPnMfk2rseNhxH0hxL1Y=; b=ZEYUPzWMOW4bhGn6zz8sJ5FwdqmybndaFaFZnXX1UVgw2EARDN40BF25pVFovlifDJ NvQxLnjXRzh1H46Km2gRaxCa8P5Aq2YbKkUrR0QZU+8HgIJyYU8lpeXH9PeFcmsVifFw Ux0M72EUJq71q5syXSadws2Q/9bD33MSnZI60XxSoffyo1FbFHSzARkqave0vPtvXoUb doN0bjKMlQzRiNK52jYpit7Ft0mk+NkbuFZKGBZAaCzj98Uhz7uHlTR+s/oVcoF+1nYP jLPjm6vxj/adEhMfy3fC/tMyi2o4tQKRulCkTC8kgVdr8i0up0izbsgrKTELyJjkZIjR ZA1g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:date:from:to:cc:subject:message-id:references :mime-version:content-disposition:in-reply-to:user-agent; bh=QGTckQOx84uQyT8SLG7DX4oMPnMfk2rseNhxH0hxL1Y=; b=ppKUz2hQpW9ALIKU5RAVwg8btk0FHx63blAt8eTllJqRwFSTgHGwbecHVz9QfCGzfL QJ1XEdiSNsE8ye3UVjoCef/Zj98iI0uXr1XNcU4giWllDF8mL5op28PkGtwmdfqUe0Gt sPYEp1k1jo4EJrJJbclrSYaeSuD+Kto9VOmTPtWuEiI2mtXH37kbEBPi790EeK6mNl32 gA8wL+09eCwvnV3BCS7yHNx1a5nlqrtOUHISMKk5qtpbemlgo15ScykmEJW/VGP8H9WN Hcievdt7GTeLgXkqVqjUhBhs6q7WYJw2CkLDI3FtszCQbspsKLLNvPlH9KfgwTzSQoM5 a9Qg== X-Gm-Message-State: APjAAAWCXO7D7UgKGZQFO4gl/rEatEJ3LvmIMmaZBIDYDc1pnz0zys3M Wy12JLwEbXF/ITkwxYQNhnc= X-Google-Smtp-Source: APXvYqxtThLzAdEQv11Vx7EYQYQNjFjlqyktYSw3YX6t61hXasQ4vUejzh7rCeeghiSHtyABvDV7RA== X-Received: by 2002:a2e:9583:: with SMTP id w3mr8150309ljh.150.1557752495866; Mon, 13 May 2019 06:01:35 -0700 (PDT) Received: from mobilestation ([5.164.217.122]) by smtp.gmail.com with ESMTPSA id q124sm633340ljq.75.2019.05.13.06.01.34 (version=TLS1_3 cipher=AEAD-AES256-GCM-SHA384 bits=256/256); Mon, 13 May 2019 06:01:35 -0700 (PDT) Date: Mon, 13 May 2019 16:01:33 +0300 From: Serge Semin To: Andrew Lunn Cc: g@lunn.ch, 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: <20190513130131.jiommbisqvydmzgw@mobilestation> 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> <20190513125103.GC28969@lunn.ch> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20190513125103.GC28969@lunn.ch> User-Agent: NeoMutt/20180716 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Mon, May 13, 2019 at 02:51:03PM +0200, Andrew Lunn wrote: > > 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 I wouldn't say that five hours is "way ahead". But if something fixes a bug in a patch it would be good to be have the original author being Cc'ed. Vincente, here is a link to the patch, that fixes the problem. https://lkml.org/lkml/2019/5/13/43 -Segey