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Mon, 19 Nov 2018 22:35:25 +0000 Received: from MWHPR2201MB1277.namprd22.prod.outlook.com ([fe80::690f:b86d:7c2:e105]) by MWHPR2201MB1277.namprd22.prod.outlook.com ([fe80::690f:b86d:7c2:e105%6]) with mapi id 15.20.1339.027; Mon, 19 Nov 2018 22:35:25 +0000 From: Paul Burton To: Firoz Khan CC: Ralf Baechle , James Hogan , "linux-mips@linux-mips.org" , Thomas Gleixner , Greg Kroah-Hartman , Philippe Ombredanne , Kate Stewart , Arnd Bergmann , "y2038@lists.linaro.org" , "linux-kernel@vger.kernel.org" , "linux-arch@vger.kernel.org" , "deepa.kernel@gmail.com" , "marcin.juszkiewicz@linaro.org" Subject: Re: [PATCH v2 4/5] mips: add system call table generation support Thread-Topic: [PATCH v2 4/5] mips: add system call table generation support Thread-Index: AQHUfKqTsLovwmqgL0iEZ+Fxq0+0M6VXtv0A Date: Mon, 19 Nov 2018 22:35:25 +0000 Message-ID: <20181119223524.gsvjkf5v24ic7ilj@pburton-laptop> References: <1542262461-29024-1-git-send-email-firoz.khan@linaro.org> <1542262461-29024-5-git-send-email-firoz.khan@linaro.org> In-Reply-To: <1542262461-29024-5-git-send-email-firoz.khan@linaro.org> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-clientproxiedby: MWHPR13CA0012.namprd13.prod.outlook.com (2603:10b6:300:16::22) To MWHPR2201MB1277.namprd22.prod.outlook.com (2603:10b6:301:24::17) user-agent: NeoMutt/20180716 authentication-results: spf=none (sender IP is ) smtp.mailfrom=pburton@wavecomp.com; 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received-spf: None (protection.outlook.com: wavecomp.com does not designate permitted sender hosts) x-microsoft-antispam-message-info: ItZSU0Au79Ut/af45KQTwuotIfqRLFDtz6A9SAfgr+CeEEZUm3bAoG5ze2eyFiihYauWbaxUyjrgiehDwaqV8RJse3kUZGljtfUI5gs8sm6ZvTOBgbd6noDGF6kw4qjQdBLi8WSc4JUErtt4wmoqx7G3YmP4Dw9ZiKbXnQCWDoOay4Se4nHcAAdE3ODF9uxYkIv+KflLwk+CcYzl1N8lzs0RHaH7/n410xtzL0Z11KPR4Hd7p3d8XK90ll46I/kCSztDWixQjuVWnWd5bbS3T3FQ8vLsMumsyknHp/2aYxULUt1nqlP5B+gBOVN0Bl81ekqtA5lBoW9AnnzgrLTGDlgSgCESighfPIvecqfaMno= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="us-ascii" Content-ID: Content-Transfer-Encoding: quoted-printable MIME-Version: 1.0 X-OriginatorOrg: mips.com X-MS-Exchange-CrossTenant-Network-Message-Id: acc00010-fcea-4c73-b2d8-08d64e6f4c5c X-MS-Exchange-CrossTenant-originalarrivaltime: 19 Nov 2018 22:35:25.2436 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 463607d3-1db3-40a0-8a29-970c56230104 X-MS-Exchange-Transport-CrossTenantHeadersStamped: MWHPR2201MB1263 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Firoz, On Thu, Nov 15, 2018 at 11:44:20AM +0530, Firoz Khan wrote: > diff --git a/arch/mips/kernel/syscalls/Makefile b/arch/mips/kernel/syscal= ls/Makefile > new file mode 100644 > index 0000000..dc6bbb1 > --- /dev/null > +++ b/arch/mips/kernel/syscalls/Makefile > @@ -0,0 +1,71 @@ > +# SPDX-License-Identifier: GPL-2.0 > +kapi :=3D arch/$(SRCARCH)/include/generated/asm > +uapi :=3D arch/$(SRCARCH)/include/generated/uapi/asm > + > +_dummy :=3D $(shell [ -d '$(uapi)' ] || mkdir -p '$(uapi)') \ > + $(shell [ -d '$(kapi)' ] || mkdir -p '$(kapi)') > + > +syscallo32 :=3D $(srctree)/$(src)/syscall_o32.tbl > +syscall64 :=3D $(srctree)/$(src)/syscall_64.tbl > +syscalln32 :=3D $(srctree)/$(src)/syscall_n32.tbl > +syshdr :=3D $(srctree)/$(src)/syscallhdr.sh > +systbl :=3D $(srctree)/$(src)/syscalltbl.sh Could we go with 'n64' instead of just '64'? When we get nanoMIPS support we'll be introducing the p32 ABI, and there's a reasonable chance that the equivalent p64 ABI may come along in the future. Using 'n64' now would avoid confusion in that case where we may have 2 different 64-bit ABIs. Thanks, Paul