From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Subject: Re: [PATCH AUTOSEL 4.19 204/205] s390/qeth: limit csum offload erratum to L3 devices 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 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 Message-Id: <4d8f1938-af6e-7e0e-4085-2f7c53390b2d@linux.ibm.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: To: Sasha Levin Cc: linux-kernel@vger.kernel.org, stable@vger.kernel.org, "David S . Miller" , linux-s390@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.