From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S932194AbcJaA6D (ORCPT ); Sun, 30 Oct 2016 20:58:03 -0400 Received: from shards.monkeyblade.net ([184.105.139.130]:38546 "EHLO shards.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752165AbcJaA6C (ORCPT ); Sun, 30 Oct 2016 20:58:02 -0400 Date: Sun, 30 Oct 2016 20:57:55 -0400 (EDT) Message-Id: <20161030.205755.1198665157526465556.davem@davemloft.net> To: mlord@pobox.com Cc: nic_swsd@realtek.com, netdev@vger.kernel.org, linux-kernel@vger.kernel.org, stable@vger.kernel.org Subject: Re: [PATCH net] r8152: Fix broken RX checksums. From: David Miller In-Reply-To: <9fb6be7b-95f3-6e59-c0f4-1d6c3357416d@pobox.com> References: <987cfbab-2b48-e28c-1706-967cb2051d63@pobox.com> <9fb6be7b-95f3-6e59-c0f4-1d6c3357416d@pobox.com> X-Mailer: Mew version 6.7 on Emacs 25.1 / Mule 6.0 (HANACHIRUSATO) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.5.12 (shards.monkeyblade.net [149.20.54.216]); Sun, 30 Oct 2016 16:58:24 -0700 (PDT) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Mark Lord Date: Sun, 30 Oct 2016 19:28:27 -0400 > The r8152 driver has been broken since (approx) 3.16.xx > when support was added for hardware RX checksums > on newer chip versions. Symptoms include random > segfaults and silent data corruption over NFS. > > The hardware checksum logig does not work on the VER_02 > dongles I have here when used with a slow embedded system CPU. > Google reveals others reporting similar issues on Raspberry Pi. > > So, disable hardware RX checksum support for VER_02, and fix > an obvious coding error for IPV6 checksums in the same function. > > Because this bug results in silent data corruption, > it is a good candidate for back-porting to -stable >= 3.16.xx. > > Signed-off-by: Mark Lord Applied and queued up for -stable, thanks.