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 25ABCC28CF5 for ; Wed, 26 Jan 2022 17:16:24 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S243648AbiAZRQX (ORCPT ); Wed, 26 Jan 2022 12:16:23 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:39694 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231270AbiAZRQV (ORCPT ); Wed, 26 Jan 2022 12:16:21 -0500 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-281-5jw7EpX6N4aq0oVh1z86_w-1; Wed, 26 Jan 2022 17:16:19 +0000 X-MC-Unique: 5jw7EpX6N4aq0oVh1z86_w-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 15.0.1497.28; Wed, 26 Jan 2022 17:16:16 +0000 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.028; Wed, 26 Jan 2022 17:16:16 +0000 From: David Laight To: 'Mathieu Desnoyers' , Christian Brauner CC: Thomas Gleixner , linux-kernel , Peter Zijlstra , paulmck , Boqun Feng , "H. Peter Anvin" , Paul Turner , linux-api , shuah , linux-kselftest , Florian Weimer , "Andy Lutomirski" , Dave Watson , "Andrew Morton" , Russell King , Andi Kleen , Christian Brauner , Ben Maurer , rostedt , Josh Triplett , Linus Torvalds , Catalin Marinas , Will Deacon , Michael Kerrisk , Joel Fernandes Subject: RE: [RFC PATCH 02/15] rseq: Remove broken uapi field layout on 32-bit little endian Thread-Topic: [RFC PATCH 02/15] rseq: Remove broken uapi field layout on 32-bit little endian Thread-Index: AdgS2G4EeBx+7+jyRfijfhRZbWR//g== Date: Wed, 26 Jan 2022 17:16:16 +0000 Message-ID: References: <20220124171253.22072-1-mathieu.desnoyers@efficios.com> <20220124171253.22072-3-mathieu.desnoyers@efficios.com> <20220125122156.v2f5anzcs35i3rii@wittgenstein> <1234069751.70438.1643121673355.JavaMail.zimbra@efficios.com> <1445357149.71067.1643137248305.JavaMail.zimbra@efficios.com> In-Reply-To: <1445357149.71067.1643137248305.JavaMail.zimbra@efficios.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: base64 Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org RnJvbTogTWF0aGlldSBEZXNub3llcnMNCj4gU2VudDogMjUgSmFudWFyeSAyMDIyIDE5OjAxDQo+ IA0KPiAtLS0tLSBPbiBKYW4gMjUsIDIwMjIsIGF0IDk6NDEgQU0sIE1hdGhpZXUgRGVzbm95ZXJz IG1hdGhpZXUuZGVzbm95ZXJzQGVmZmljaW9zLmNvbSB3cm90ZToNCj4gDQo+ID4gLS0tLS0gT24g SmFuIDI1LCAyMDIyLCBhdCA3OjIxIEFNLCBDaHJpc3RpYW4gQnJhdW5lciBicmF1bmVyQGtlcm5l bC5vcmcgd3JvdGU6DQo+IFsuLi5dDQo+ID4+PiAgaW5jbHVkZS91YXBpL2xpbnV4L3JzZXEuaCB8 IDE3ICsrKystLS0tLS0tLS0tLS0tDQo+IFsuLi5dDQo+ID4+PiAgCXVuaW9uIHsNCj4gPj4NCj4g Pj4gQSBiaXQgdW5mb3J0dW5hdGUgd2Ugc2VlbSB0byBoYXZlIHRvIGtlZXAgdGhlIHVuaW9uIGFy b3VuZCBldmVuIHRob3VnaA0KPiA+PiBpdCdzIGp1c3Qgb25lIGZpZWxkIG5vdy4NCj4gPg0KPiA+ IFdlbGwsIGFzIGZhciBhcyB0aGUgdXNlci1zcGFjZSBwcm9qZWN0cyB0aGF0IEkga25vdyBvZiB3 aGljaCB1c2UgcnNlcQ0KPiA+IGFyZSBjb25jZXJuZWQgKGdsaWJjLCBsaWJyc2VxLCB0Y21hbGxv YyksIHRob3NlIGVuZCB1cCB3aXRoIHRoZWlyIG93bg0KPiA+IGNvcHkgb2YgdGhlIHVhcGkgaGVh ZGVyIGFueXdheSB0byBkZWFsIHdpdGggdGhlIGJpZy9saXR0bGUgZW5kaWFuIGZpZWxkDQo+ID4g b24gMzItYml0LiBTbyBJJ20gdmVyeSBtdWNoIG9wZW4gdG8gcmVtb3ZlIHRoZSB1bmlvbiBpZiB3 ZSBhY2NlcHQgdGhhdA0KPiA+IHRoaXMgdWFwaSBoZWFkZXIgaXMgcmVhbGx5IGp1c3QgbWVhbnQg dG8gZXhwcmVzcyB0aGUgQUJJIGFuZCBpcyBub3QNCj4gPiBleHBlY3RlZCB0byBiZSB1c2VkIGFz IGFuIEFQSSBieSB1c2VyLXNwYWNlLg0KPiA+DQo+ID4gVGhhdCB3b3VsZCBtZWFuIHdlIGFsc28g YnJpbmcgYSB1YXBpIGhlYWRlciBjb3B5IGludG8gdGhlIGtlcm5lbA0KPiA+IHJzZXEgc2VsZnRl c3RzIGFzIHdlbGwgdG8gbWluaW1pemUgdGhlIGdhcCBiZXR3ZWVuIGxpYnJzZXEgYW5kDQo+ID4g dGhlIGtlcm5lbCBzZWZsdGVzdHMgKHRoZSBrZXJuZWwgc2VmbHRlc3RzIHByZXR0eSBtdWNoIGlu Y2x1ZGUgYQ0KPiA+IGNvcHkgb2YgbGlicnNlcSBmb3IgY29udmVuaWVuY2UuIGxpYnJzZXEgaXMg bWFpbnRhaW5lZCBvdXQgb2YgdHJlZSkuDQo+ID4NCj4gPiBUaG91Z2h0cyA/DQo+IA0KPiBBY3R1 YWxseSwgaWYgd2UgZ28gYWhlYWQgYW5kIHJlbW92ZSB0aGUgdW5pb24sIGFuZCByZXBsYWNlOg0K PiANCj4gc3RydWN0IHJzZXEgew0KPiAgIHVuaW9uIHsNCj4gICAgIF9fdTY0IHB0cjY0Ow0KPiAg IH0gcnNlcV9jczsNCj4gWy4uLl0NCj4gfSB2Ow0KPiANCj4gYnk6DQo+IA0KPiBzdHJ1Y3QgcnNl cSB7DQo+ICAgX191NjQgcnNlcV9jczsNCj4gfSB2Ow0KPiANCj4gZXhwcmVzc2lvbnMgc3VjaCBh cyB0aGVzZSBhcmUgdW5jaGFuZ2VkOg0KPiANCj4gLSBzaXplb2Yodi5yc2VxX2NzKSwNCj4gLSAm di5yc2VxX2NzLA0KPiAtIF9fYWxpZ25vZl9fKHYucnNlcV9jcyksDQo+IC0gb2Zmc2V0b2Yoc3Ry dWN0IHJzZXEsIHJzZXFfY3MpLg0KPiANCj4gU28gdXNlcnMgb2YgdGhlIHVhcGkgcnNlcS5oIChh cyBhbiBBUEkpIGNhbiBzdGlsbCB1c2UgcnNlcV9hYmktPnJzZXFfY3MgYmVmb3JlDQo+IGFuZCBh ZnRlciB0aGUgY2hhbmdlLg0KDQpCdXQ6DQoJdi5yc2VxX2NzLnB0cl82NCA9ICh1aW50cHRyX3Qp JmZvbzsNCmlzIGJyb2tlbi4NCg0KPiBCYXNlZCBvbiB0aGlzLCBJIGFtIGluY2xpbmVkIHRvIHJl bW92ZSB0aGUgdW5pb24sIGFuZCBqdXN0IG1ha2UgdGhlIHJzZXFfY3MgZmllbGQNCj4gYSBfX3U2 NC4NCg0KSXQgcmVhbGx5IGlzIGEgc2hhbWUgdGhhdCB5b3UgY2FuJ3QgZG86DQoJdm9pZCAgICpy c2VxX2NzIF9fYXR0cmlidXRlX18oKHNpemUoOCkpKTsNCmFuZCBoYXZlIHRoZSBjb21waWxlciBq dXN0IERUUlQgb24gMzJiaXQgc3lzdGVtcy4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRk cmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBN SzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==