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=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 autolearn=no 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 83E74C5DF60 for ; Fri, 8 Nov 2019 12:16:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 6014720656 for ; Fri, 8 Nov 2019 12:16:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1732663AbfKHMQd (ORCPT ); Fri, 8 Nov 2019 07:16:33 -0500 Received: from mx0b-001b2d01.pphosted.com ([148.163.158.5]:58682 "EHLO mx0a-001b2d01.pphosted.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1731612AbfKHMQd (ORCPT ); Fri, 8 Nov 2019 07:16:33 -0500 Received: from pps.filterd (m0098414.ppops.net [127.0.0.1]) by mx0b-001b2d01.pphosted.com (8.16.0.27/8.16.0.27) with SMTP id xA8CDl3Z054449 for ; Fri, 8 Nov 2019 07:16:32 -0500 Received: from e06smtp03.uk.ibm.com (e06smtp03.uk.ibm.com [195.75.94.99]) by mx0b-001b2d01.pphosted.com with ESMTP id 2w57hwhckr-1 (version=TLSv1.2 cipher=AES256-GCM-SHA384 bits=256 verify=NOT) for ; Fri, 08 Nov 2019 07:16:32 -0500 Received: from localhost by e06smtp03.uk.ibm.com with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted for from ; Fri, 8 Nov 2019 12:16:30 -0000 Received: from b06cxnps4074.portsmouth.uk.ibm.com (9.149.109.196) by e06smtp03.uk.ibm.com (192.168.101.133) with IBM ESMTP SMTP Gateway: Authorized Use Only! Violators will be prosecuted; (version=TLSv1/SSLv3 cipher=AES256-GCM-SHA384 bits=256/256) Fri, 8 Nov 2019 12:16:27 -0000 Received: from b06wcsmtp001.portsmouth.uk.ibm.com (b06wcsmtp001.portsmouth.uk.ibm.com [9.149.105.160]) by b06cxnps4074.portsmouth.uk.ibm.com (8.14.9/8.14.9/NCO v10.0) with ESMTP id xA8CGQIn18481198 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=OK); Fri, 8 Nov 2019 12:16:26 GMT Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id C517FA4054; Fri, 8 Nov 2019 12:16:26 +0000 (GMT) Received: from b06wcsmtp001.portsmouth.uk.ibm.com (unknown [127.0.0.1]) by IMSVA (Postfix) with ESMTP id 8774EA405B; Fri, 8 Nov 2019 12:16:26 +0000 (GMT) Received: from [9.152.222.69] (unknown [9.152.222.69]) by b06wcsmtp001.portsmouth.uk.ibm.com (Postfix) with ESMTP; Fri, 8 Nov 2019 12:16:26 +0000 (GMT) Subject: Re: [PATCH AUTOSEL 4.19 204/205] s390/qeth: limit csum offload erratum to L3 devices To: Sasha Levin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, "David S . Miller" , linux-s390@vger.kernel.org References: <20191108113752.12502-1-sashal@kernel.org> <20191108113752.12502-204-sashal@kernel.org> <2e4553d6-de1f-bb61-33e4-10a5c23f0aa7@linux.ibm.com> <20191108120025.GM4787@sasha-vm> From: Julian Wiedmann Date: Fri, 8 Nov 2019 13:16:26 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 MIME-Version: 1.0 In-Reply-To: <20191108120025.GM4787@sasha-vm> Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit X-TM-AS-GCONF: 00 x-cbid: 19110812-0012-0000-0000-00000361E08A X-IBM-AV-DETECTION: SAVI=unused REMOTE=unused XFE=unused x-cbparentid: 19110812-0013-0000-0000-0000219D4507 Message-Id: <4d8f1938-af6e-7e0e-4085-2f7c53390b2d@linux.ibm.com> X-Proofpoint-Virus-Version: vendor=fsecure engine=2.50.10434:,, definitions=2019-11-08_03:,, signatures=0 X-Proofpoint-Spam-Details: rule=outbound_notspam policy=outbound score=0 priorityscore=1501 malwarescore=0 suspectscore=0 phishscore=0 bulkscore=0 spamscore=0 clxscore=1031 lowpriorityscore=0 mlxscore=0 impostorscore=0 mlxlogscore=999 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1910280000 definitions=main-1911080121 Sender: stable-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On 08.11.19 13:00, Sasha Levin wrote: > On Fri, Nov 08, 2019 at 12:50:24PM +0100, Julian Wiedmann wrote: >> On 08.11.19 12:37, Sasha Levin wrote: >>> From: Julian Wiedmann >>> >>> [ Upstream commit f231dc9dbd789b0f98a15941e3cebedb4ad72ad5 ] >>> >>> Combined L3+L4 csum offload is only required for some L3 HW. So for >>> L2 devices, don't offload the IP header csum calculation. >>> >> >> NACK, this has no relevance for stable. > > Sure, I'll drop it. > > Do you have an idea why the centos and ubuntu folks might have > backported this commit into their kernels? > No clue, I trust they have their own reasons.