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 D858FCD5BB9 for ; Tue, 19 Sep 2023 13:23:23 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232023AbjISNX1 convert rfc822-to-8bit (ORCPT ); Tue, 19 Sep 2023 09:23:27 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:38142 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231766AbjISNX0 (ORCPT ); Tue, 19 Sep 2023 09:23:26 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id F1646F4 for ; Tue, 19 Sep 2023 06:23:20 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-53-kQOjcUm9Mdygv-A1vaw1tA-1; Tue, 19 Sep 2023 14:23:13 +0100 X-MC-Unique: kQOjcUm9Mdygv-A1vaw1tA-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Tue, 19 Sep 2023 14:23:08 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Tue, 19 Sep 2023 14:23:08 +0100 From: David Laight To: 'Matthew Wilcox' , Greg Ungerer CC: "linux-kernel@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "torvalds@linux-foundation.org" , "Nicholas Piggin" Subject: RE: [PATCH 09/17] m68k: Implement xor_unlock_is_negative_byte Thread-Topic: [PATCH 09/17] m68k: Implement xor_unlock_is_negative_byte Thread-Index: AQHZ6Kr+hLdybFnA00ugx5L/MFgM8bAiJxPQ Date: Tue, 19 Sep 2023 13:23:08 +0000 Message-ID: References: <20230915183707.2707298-1-willy@infradead.org> <20230915183707.2707298-10-willy@infradead.org> <6e409d5f-a419-07b7-c82c-4e80fe19c6ba@westnet.com.au> In-Reply-To: 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 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-arch@vger.kernel.org > Well, that sucks. What do you suggest for Coldfire? Can you just do a 32bit xor ? Unless you've got smp m68k I'd presume it is ok? (And assuming you aren't falling off a page.) David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1PT, UK Registration No: 1397386 (Wales)