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=-4.0 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 AC97FC433E1 for ; Thu, 13 Aug 2020 08:49:20 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 9046B20771 for ; Thu, 13 Aug 2020 08:49:20 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726591AbgHMItT (ORCPT ); Thu, 13 Aug 2020 04:49:19 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:58470 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726081AbgHMItS (ORCPT ); Thu, 13 Aug 2020 04:49:18 -0400 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-19-JfTwuwKtO8GLLsCk8sIa-w-1; Thu, 13 Aug 2020 09:49:15 +0100 X-MC-Unique: JfTwuwKtO8GLLsCk8sIa-w-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, 13 Aug 2020 09:49:14 +0100 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, 13 Aug 2020 09:49:14 +0100 From: David Laight To: 'Nick Desaulniers' , Thomas Gleixner , Ingo Molnar CC: Arnd Bergmann , Borislav Petkov , "maintainer:X86 ARCHITECTURE (32-BIT AND 64-BIT)" , "H. Peter Anvin" , "Kirill A. Shutemov" , Zhenzhong Duan , Kees Cook , "Peter Zijlstra" , Juergen Gross , "Andy Lutomirski" , Andrew Cooper , LKML , clang-built-linux Subject: RE: [PATCH] x86: work around clang IAS bug referencing __force_order Thread-Topic: [PATCH] x86: work around clang IAS bug referencing __force_order Thread-Index: AQHWcQZ7ykBaYOhpGEiJ4Y1LlTTd7qk1uosg Date: Thu, 13 Aug 2020 08:49:14 +0000 Message-ID: <016a02d1019f4d0eba67e37d3be2d74d@AcuMS.aculab.com> References: <20200527135329.1172644-1-arnd@arndb.de> <878serh1b9.fsf@nanos.tec.linutronix.de> In-Reply-To: Accept-Language: en-GB, en-US Content-Language: 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: 0.001 X-Mimecast-Originator: aculab.com Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: base64 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Archived-At: List-Archive: List-Post: RnJvbTogTmljayBEZXNhdWxuaWVycw0KPiBTZW50OiAxMyBBdWd1c3QgMjAyMCAwMToxMw0KPiAN Cj4gT24gVGh1LCBBdWcgNiwgMjAyMCBhdCAzOjExIFBNIFRob21hcyBHbGVpeG5lciA8dGdseEBs aW51dHJvbml4LmRlPiB3cm90ZToNCj4gPg0KPiA+IEFybmQgQmVyZ21hbm4gPGFybmRAYXJuZGIu ZGU+IHdyaXRlczoNCj4gPiA+IFdoZW4gdXNpbmcgdGhlIGNsYW5nIGludGVncmF0ZWQgYXNzZW1i bGVyLCB3ZSBnZXQgYSByZWZlcmVuY2UNCj4gPiA+IHRvIF9fZm9yY2Vfb3JkZXIgdGhhdCBzaG91 bGQgbm9ybWFsbHkgZ2V0IGlnbm9yZWQgaW4gYSBmZXcNCj4gPiA+IHJhcmUgY2FzZXM6DQo+ID4g Pg0KPiA+ID4gRVJST1I6IG1vZHBvc3Q6ICJfX2ZvcmNlX29yZGVyIiBbZHJpdmVycy9jcHVmcmVx L3Bvd2Vybm93LWs2LmtvXSB1bmRlZmluZWQhDQo+ID4gPg0KPiA+ID4gQWRkIGEgJ3N0YXRpYycg ZGVmaW5pdGlvbiBzbyBhbnkgZmlsZSBpbiB3aGljaCB0aGlzIGhhcHBlbnMgY2FuDQo+ID4gPiBo YXZlIGEgbG9jYWwgY29weS4NCj4gPg0KPiA+IFRoYXQncyBhIGhvcnJpYmxlIGhhY2suDQo+IA0K PiBBZ3JlZWQuICBBbmQgc3RhdGljIG1lYW5zIGV2ZXJ5b25lIGdldHMgdGhlaXIgb3duIGNvcHks IHJhdGhlciB0aGFuDQo+IHNoYXJpbmcgb25lIG1lbW9yeSBhZGRyZXNzLiAgSSBndWVzcyBubyBv bmUgYWN0dWFsbHkgd3JpdGVzIHRvIGl0LCBzbw0KPiBpdCBkb2Vzbid0IHJlYWxseSBtYXR0ZXIs IGJ1dCBfX2ZvcmNlX29yZGVyIGp1c3Qgc2VlbXMgc28gc3RyYW5nZSB0bw0KPiBtZS4NCg0KSXQg Y291bGQgYmUgY2hhbmdlZCB0byB1c2UgYSBzeW1ib2wgdGhhdCB0aGUgbGlua2VyIHNjcmlwdCBh bHJlYWR5IGRlZmluZXMuDQpIb3dldmVyIGl0IGRvZXMgbG9vayBsaWtlIGEgd29ya2Fyb3VuZCBm b3IgYSBicm9rZW4gdmVyc2lvbiBvZiBnY2MuDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFk ZHJlc3MgTGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywg TUsxIDFQVCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=