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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 4A17DC00A89 for ; Thu, 5 Nov 2020 09:10:16 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E153D2083B for ; Thu, 5 Nov 2020 09:10:15 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1730648AbgKEJKP convert rfc822-to-8bit (ORCPT ); Thu, 5 Nov 2020 04:10:15 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:31164 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1730368AbgKEJKO (ORCPT ); Thu, 5 Nov 2020 04:10:14 -0500 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-36-lTFCWq8_NQCw4aZKrI50dQ-1; Thu, 05 Nov 2020 09:10:10 +0000 X-MC-Unique: lTFCWq8_NQCw4aZKrI50dQ-1 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) by AcuMS.aculab.com (fd9f:af1c:a25b:0:43c:695e:880f:8750) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Thu, 5 Nov 2020 09:10:04 +0000 Received: from AcuMS.Aculab.com ([fe80::43c:695e:880f:8750]) by AcuMS.aculab.com ([fe80::43c:695e:880f:8750%12]) with mapi id 15.00.1347.000; Thu, 5 Nov 2020 09:10:04 +0000 From: David Laight To: 'Xie He' , Jakub Kicinski , "David S. Miller" , "netdev@vger.kernel.org" , "linux-kernel@vger.kernel.org" , Arnd Bergmann Subject: RE: [PATCH net-next] net: x25_asy: Delete the x25_asy driver Thread-Topic: [PATCH net-next] net: x25_asy: Delete the x25_asy driver Thread-Index: AQHWs0YkvDVQKZzs2ECZM+crj0xbk6m5Pz0w Date: Thu, 5 Nov 2020 09:10:04 +0000 Message-ID: <1d7f669ba4e444f1b35184264e5da601@AcuMS.aculab.com> References: <20201105073434.429307-1-xie.he.0141@gmail.com> In-Reply-To: <20201105073434.429307-1-xie.he.0141@gmail.com> 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: linux-kernel@vger.kernel.org From: Xie He > Sent: 05 November 2020 07:35 > > This driver transports LAPB (X.25 link layer) frames over TTY links. I don't remember any requests to run LAPB over anything other than synchronous links when I was writing LAPB implementation(s) back in the mid 1980's. If you need to run 'comms over async uart links' there are better options. I wonder what the actual use case was? David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)