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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 18DF5C433EF for ; Tue, 24 May 2022 18:48:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S240443AbiEXSsO (ORCPT ); Tue, 24 May 2022 14:48:14 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:35680 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236276AbiEXSsM (ORCPT ); Tue, 24 May 2022 14:48:12 -0400 Received: from mout.kundenserver.de (mout.kundenserver.de [212.227.17.24]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id E4241167FA; Tue, 24 May 2022 11:48:11 -0700 (PDT) Received: from mail-yw1-f181.google.com ([209.85.128.181]) by mrelayeu.kundenserver.de (mreue109 [213.165.67.113]) with ESMTPSA (Nemesis) id 1M3UhQ-1nu7o336bC-000dls; Tue, 24 May 2022 20:48:09 +0200 Received: by mail-yw1-f181.google.com with SMTP id 00721157ae682-2ff53d86abbso172614297b3.8; Tue, 24 May 2022 11:48:09 -0700 (PDT) X-Gm-Message-State: AOAM530c9mwzpYOUEg3OKYtOORE5jxJWcZCIBjZ6k698dijeepdti8DL 2E1fjKQm8gEAFlUI6HLKpTgDrnKhLy6v0GerDvs= X-Google-Smtp-Source: ABdhPJwsYiBb9B3E79SnIJ4WcC5zF0hkd6+vxZqN+SGfjXixyjxuQWcb/oLhXG/F3pN01qSlI3UK0ow0dNpe7TWkBzg= X-Received: by 2002:a0d:cfc7:0:b0:300:26d2:30eb with SMTP id r190-20020a0dcfc7000000b0030026d230ebmr4963055ywd.320.1653418088338; Tue, 24 May 2022 11:48:08 -0700 (PDT) MIME-Version: 1.0 References: <20220524155929.826793-1-sashal@kernel.org> <20220524155929.826793-10-sashal@kernel.org> In-Reply-To: From: Arnd Bergmann Date: Tue, 24 May 2022 20:47:51 +0200 X-Gmail-Original-Message-ID: Message-ID: Subject: Re: [PATCH AUTOSEL 5.17 10/12] net: ftgmac100: Disable hardware checksum on AST2600 To: Arnd Bergmann Cc: Sasha Levin , Linux Kernel Mailing List , "# 3.4.x" , Joel Stanley , David Wilder , Dylan Hung , "David S . Miller" , Eric Dumazet , Jakub Kicinski , Paolo Abeni , guoheyi@linux.alibaba.com, chenhao288@hisilicon.com, Networking Content-Type: text/plain; charset="UTF-8" X-Provags-ID: V03:K1:96xrElVXySoqq9iS0axwBKlp/dRRWdxq7fv0K73xitxQOr4Nkrx lvghLgYzyuMj08MK4stMzgqFgiPZEM+OfqtZ+URRr7FtASUGNc3dQq7w86WItNKp+WIH7ix XtXp1SmTzXO7ZaK8Haloc+MSnemSR5Y+NcAqv2wV3jm/eFs4CXgbyVmlRdk7ilUzQbpuntH 9hAPXo50RfOJ3cXCXS4zA== X-UI-Out-Filterresults: notjunk:1;V03:K0:puI6Pq3V28s=:JSAZuF4vBgB9vNUO9UHFIZ gUBDM3vqMIECFeKwqFVuLKqvWcGh5YZA0iPG0fBiJUW66YWD3QLfQP4+9yBmYGJABrD67fAIh oaAOUqDHeXKxNCCp7Be+wHlcMi/ap/lkZKCWl+Pqq79ugs21LQgKRiG7deEpxKerG7aeVwcb/ Hp4Tf7cIo7v5eIAckaoWdFqPywXjuSQPRwg7qo8YLB7zHg5yk0EGM3/mEaPnDMe3q0IoT1ZnL n4BoUcBczZz6r1nu0SKX5Dl6aujEAuWshz1h3pQgd5fudy2AOgHqgtIZr5TaCxVPRz3TcnT/w jzmqnsLmXfsNwT09rl1nj9Zj9ZyJU47Fq1UpPEGtt4qHNLRxqmAPFIfJHt8Liib3J1zJrTLef 2+6CYeDmjUjIMHn1yrGifMWaBsrQTm+gF1PgiDPCiB8ss6wx8cq7yaAFWLIVwzf6yRuHdzsbR BSZivE5VXztT7P5/a1HGMGuMYy8T/7gd8fpTJWnmjcUOrgibteOhVTQiuaIWbIFiKlaBcfF6Z fHn3v9AYoiDyHz1Jea+5WbRbu1eWLVGzYO9/LqQ2bp5XwxfuBu5ixCuCIFjDCic6XiIvh/i74 DmqxGwSgQ+0DEuNtkroSvNMXKZaRDNjTfN+SZqdvEoPtoaZE2scJbxIY7C2t3YmoLaADN7Ze8 Bd38wnhLgf68j1Xxc5F9lJWwe0FC1V1koDEw0lqkJkilce966WgGS6gA/idC/Y0vJGyACQ6Zp jM9bv6KGPP6rk5NjPzzfVaaWB5DWKtGCh3cv743HMHxOxKBEpkhg5D5lc6ycMrDosNzzcuylm skqYPxwgh5s6O8J2qU1cZ+0lnCJ0v+CfLUh4jDDrJp+cvGEwLL7F6v9spKO+DOMu/PdnpzqMx Hw+DluO957ZSJVtmcptLbiN8GhUB8+f86oE75ZqYw= Precedence: bulk List-ID: X-Mailing-List: netdev@vger.kernel.org On Tue, May 24, 2022 at 8:47 PM Arnd Bergmann wrote: > > On Tue, May 24, 2022 at 5:59 PM Sasha Levin wrote: > > > > # ip link set mtu 1410 dev eth0 > > > > The observed results: > > > > 1500 - good > > 1434 - bad > > 1400 - good > > 1410 - bad > > 1420 - good > > Does it require multiples of four? Maybe it just skips the last bytes? Nevermind, I missed that this was a backport of a merged patch, rather than a new one. Arnd