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 lists.ozlabs.org (lists.ozlabs.org [112.213.38.117]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 3399BC433EF for ; Tue, 11 Jan 2022 09:52:55 +0000 (UTC) Received: from boromir.ozlabs.org (localhost [IPv6:::1]) by lists.ozlabs.org (Postfix) with ESMTP id 4JY5bT4NW7z30Mm for ; Tue, 11 Jan 2022 20:52:53 +1100 (AEDT) Authentication-Results: lists.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=aculab.com (client-ip=185.58.86.151; helo=eu-smtp-delivery-151.mimecast.com; envelope-from=david.laight@aculab.com; receiver=) Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by lists.ozlabs.org (Postfix) with ESMTPS id 4JY5Zy5Dbfz3bdG for ; Tue, 11 Jan 2022 20:52:25 +1100 (AEDT) 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-405-rXUlX-ehMDyIXirCKi7aCg-1; Tue, 11 Jan 2022 09:52:18 +0000 X-MC-Unique: rXUlX-ehMDyIXirCKi7aCg-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 15.0.1497.26; Tue, 11 Jan 2022 09:52:18 +0000 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.026; Tue, 11 Jan 2022 09:52:17 +0000 From: David Laight To: 'Christoph Hellwig' , Arnd Bergmann Subject: RE: [PATCH 5/5] compat: consolidate the compat_flock{,64} definition Thread-Topic: [PATCH 5/5] compat: consolidate the compat_flock{, 64} definition Thread-Index: AQHYBsZBTBglXUWeOki+cPQc77mslqxdkbpw Date: Tue, 11 Jan 2022 09:52:17 +0000 Message-ID: References: <20220111083515.502308-1-hch@lst.de> <20220111083515.502308-6-hch@lst.de> In-Reply-To: <20220111083515.502308-6-hch@lst.de> 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: quoted-printable X-BeenThere: linuxppc-dev@lists.ozlabs.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: Linux on PowerPC Developers Mail List List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: "linux-arch@vger.kernel.org" , "linux-s390@vger.kernel.org" , "linux-parisc@vger.kernel.org" , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , "linux-mips@vger.kernel.org" , Guo Ren , "sparclinux@vger.kernel.org" , "linuxppc-dev@lists.ozlabs.org" , "linux-arm-kernel@lists.infradead.org" Errors-To: linuxppc-dev-bounces+linuxppc-dev=archiver.kernel.org@lists.ozlabs.org Sender: "Linuxppc-dev" From: Christoph Hellwig > Sent: 11 January 2022 08:35 >=20 > Provide a single common definition for the compat_flock and > compat_flock64 structures using the same tricks as for the native > variants. Another extra define is added for the packing required on > x86. >=20 ... > /* > - * IA32 uses 4 byte alignment for 64 bit quantities, > - * so we need to pack this structure. > + * IA32 uses 4 byte alignment for 64 bit quantities, so we need to pack = the > + * compat flock64 structure. > */ ... > +#define __ARCH_NEED_COMPAT_FLOCK64_PACKED Maybe: #define __ARCH_COMPAT_FLOCK64_ATTR (packed),(aligned(4) ... Delete this bit: > +#ifdef __ARCH_NEED_COMPAT_FLOCK64_PACKED > +#define __ARCH_COMPAT_FLOCK64_PACK=09__attribute__((packed)) > +#else > +#define __ARCH_COMPAT_FLOCK64_PACK > +#endif ... > +struct compat_flock64 { > +=09short=09=09l_type; > +=09short=09=09l_whence; > +=09compat_loff_t=09l_start; > +=09compat_loff_t=09l_len; > +=09compat_pid_t=09l_pid; > +#ifdef __ARCH_COMPAT_FLOCK64_PAD > +=09__ARCH_COMPAT_FLOCK64_PAD > +#endif > +} __ARCH_COMPAT_FLOCK64_PACK; then: #ifdef __ARCH_COMPAT_FLOCK64_ATTR } __attribute__(__ARCH_COMPAT_FLOCK64_ATTR); #else }; #endif Makes it a bit more like the xxx_PAD bits. Although the trailing ; does cause a bit of grief. =09David - Registered Address Lakeside, Bramley Road, Mount Farm, Milton Keynes, MK1 1= PT, UK Registration No: 1397386 (Wales)