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 108F9C19F2C for ; Mon, 1 Aug 2022 08:37:17 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230153AbiHAIhQ convert rfc822-to-8bit (ORCPT ); Mon, 1 Aug 2022 04:37:16 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:48732 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229727AbiHAIhP (ORCPT ); Mon, 1 Aug 2022 04:37:15 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.85.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 2833E2E9F5 for ; Mon, 1 Aug 2022 01:37:13 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-60-CksiPPRtPA6w1mXQckakNQ-1; Mon, 01 Aug 2022 09:37:09 +0100 X-MC-Unique: CksiPPRtPA6w1mXQckakNQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) by AcuMS.aculab.com (fd9f:af1c:a25b:0:994c:f5c2:35d6:9b65) with Microsoft SMTP Server (TLS) id 15.0.1497.36; Mon, 1 Aug 2022 09:37:04 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.036; Mon, 1 Aug 2022 09:37:04 +0100 From: David Laight To: 'Stephen Hemminger' , "netdev@vger.kernel.org" CC: Jonathan Corbet , "David S. Miller" , Eric Dumazet , Jakub Kicinski , "Paolo Abeni" , Thomas Bogendoerfer , Michael Ellerman , Benjamin Herrenschmidt , Paul Mackerras , "Pablo Neira Ayuso" , Jozsef Kadlecsik , "Florian Westphal" , Borislav Petkov , "Paul E. McKenney" , Kees Cook , Peter Zijlstra , Andrew Morton , "Randy Dunlap" , Damien Le Moal , Xin Long , "Akhmat Karakotov" , Antoine Tenart , "Hans de Goede" , Juergen Gross , Jens Axboe , Xie Yongji , Chen Yu , William Breathitt Gray , "Suma Hegde" , =?iso-8859-1?Q?Pali_Roh=E1r?= , Jeff Layton , Chuck Lever , "Arnd Bergmann" , Alexandre Ghiti , Scott Wood , Paul Gortmaker , Nikolay Aleksandrov , Sebastian Andrzej Siewior , Menglong Dong , Petr Machata , Daniel Borkmann , David Ahern , Roopa Prabhu , Yajun Deng , Yuwei Wang , Shakeel Butt , Soheil Hassas Yeganeh , "Kuniyuki Iwashima" , Marc Kleine-Budde , "Stefano Garzarella" , Alexei Starovoitov , "Wang Qing" , Yu Zhe , Benjamin Poirier , Victor Erminpour , "GONG, Ruiqi" , "open list:DOCUMENTATION" , open list , "open list:MIPS" , "open list:LINUX FOR POWERPC (32-BIT AND 64-BIT)" , "open list:NETFILTER" , "open list:NETFILTER" Subject: RE: [RFC] Remove DECNET support from kernel Thread-Topic: [RFC] Remove DECNET support from kernel Thread-Index: AQHYpREB8DXx1AZd/0ac5Son0/agPK2ZuBOg Date: Mon, 1 Aug 2022 08:37:03 +0000 Message-ID: References: <20220731190646.97039-1-stephen@networkplumber.org> In-Reply-To: <20220731190646.97039-1-stephen@networkplumber.org> Accept-Language: en-GB, en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-ms-exchange-transport-fromentityheader: Hosted x-originating-ip: [10.202.205.107] MIME-Version: 1.0 Authentication-Results: relay.mimecast.com; auth=pass smtp.auth=C51A453 smtp.mailfrom=david.laight@aculab.com X-Mimecast-Spam-Score: 0 X-Mimecast-Originator: aculab.com Content-Language: en-US Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8BIT Precedence: bulk List-ID: X-Mailing-List: netfilter-devel@vger.kernel.org From: Stephen Hemminger > Sent: 31 July 2022 20:06 > To: netdev@vger.kernel.org > > Decnet is an obsolete network protocol that receives more attention > from kernel janitors than users. It belongs in computer protocol > history museum not in Linux kernel. > > It has been Orphaned in kernel since 2010. > And the documentation link on Sourceforge says it is abandoned there. It was pretty much obsolete when I was writing ethernet drivers in the early 1990's. Sort of surprising support ever got into Linux in the first place! Remember it requires the ethernet MAC address be set to a locally assigned value that is the machine's 'node number'. Does this remove some/most/all of the [gs]et_sockopt() calls where the length is ignored/ David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)