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=-3.8 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 BF079C63798 for ; Thu, 22 Jul 2021 08:45:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id ABA7D6128E for ; Thu, 22 Jul 2021 08:45:51 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230501AbhGVIFO (ORCPT ); Thu, 22 Jul 2021 04:05:14 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:39881 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231252AbhGVIFL (ORCPT ); Thu, 22 Jul 2021 04:05:11 -0400 Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-175-h0lw6uECM3eZnQ-erC7drw-1; Thu, 22 Jul 2021 09:45:44 +0100 X-MC-Unique: h0lw6uECM3eZnQ-erC7drw-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 15.0.1497.23; Thu, 22 Jul 2021 09:45:42 +0100 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.023; Thu, 22 Jul 2021 09:45:42 +0100 From: David Laight To: 'Yunsheng Lin' , "davem@davemloft.net" , "kuba@kernel.org" , "mst@redhat.com" , "jasowang@redhat.com" CC: "nickhu@andestech.com" , "green.hu@gmail.com" , "deanbo422@gmail.com" , "akpm@linux-foundation.org" , "yury.norov@gmail.com" , "andriy.shevchenko@linux.intel.com" , "ojeda@kernel.org" , "ndesaulniers@gooogle.com" , "joe@perches.com" , "linux-kernel@vger.kernel.org" , "virtualization@lists.linux-foundation.org" , "netdev@vger.kernel.org" , "linuxarm@openeuler.org" Subject: RE: [PATCH v2 3/4] tools headers UAPI: add cpu_relax() implementation for x86 and arm64 Thread-Topic: [PATCH v2 3/4] tools headers UAPI: add cpu_relax() implementation for x86 and arm64 Thread-Index: AQHXfQ/RMbMxcgsnGkW4/hrjrWfzM6tN6faQgACviYCAABYlkA== Date: Thu, 22 Jul 2021 08:45:42 +0000 Message-ID: <9e76aac65edc4d88b141d79496ae3fdf@AcuMS.aculab.com> References: <1626747709-34013-1-git-send-email-linyunsheng@huawei.com> <1626747709-34013-4-git-send-email-linyunsheng@huawei.com> <5db490c6f264431e91bcdbb62fcf3be5@AcuMS.aculab.com> <9efd2434-feac-a385-f3c5-4a0fb0cc7706@huawei.com> In-Reply-To: <9efd2434-feac-a385-f3c5-4a0fb0cc7706@huawei.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 PiA+IEJld2FyZSwgSW50ZWwgaW5jcmVhc2VkIHRoZSBzdGFsbCBmb3IgJ3JlcCBub3AnIGluIHNv bWUgcmVjZW50DQo+ID4gY3B1IHRvIElJUkMgYWJvdXQgMjAwIGN5Y2xlcy4NCj4gPg0KPiA+IFRo ZXkgZXZlbiBkb2N1bWVudCB0aGF0IHRoaXMgbWlnaHQgaGF2ZSBhIGRldHJpbWVudGFsIGVmZmVj dC4NCj4gPiBJdCBpcyBiYXNpY2FsbHkgZmFyIHRvbyBsb25nIGZvciB0aGUgc29ydCBvZiB0aGlu ZyBpdCBtYWtlcw0KPiA+IHNlbnNlIHRvIGJ1c3ktd2FpdCBmb3IuDQo+IA0KPiBUaGFua3MgZm9y IHRoZSBpbmZvOikNCj4gSSB3aWxsIGJlIGJld2FyZSBvZiB0aGF0IHdoZW4gcGxheWluZyB3aXRo ICAncmVwIG5vcCcgaW4gbmV3ZXINCj4geDg2IGNwdS4NCg0KU2VlIDguNC43IFBhdXNlIExhdGVu Y3kgaW4gU2t5bGFrZSBNaWNyb2FyY2hpdGVjdHVyZSBpbg0KSW50ZWzCriA2NCBhbmQgSUEtMzIg QXJjaGl0ZWN0dXJlcyBPcHRpbWl6YXRpb24gUmVmZXJlbmNlIE1hbnVhbA0KDQpUaGUgbGF0ZW5j eSBvZiBQQVVTRSBpbnN0cnVjdGlvbiBpbiBwcmlvciBnZW5lcmF0aW9uIG1pY3JvYXJjaGl0ZWN0 dXJlDQppcyBhYm91dCAxMCBjeWNsZXMsIHdoZXJlYXMgb24gU2t5bGFrZSBtaWNyb2FyY2hpdGVj dHVyZSBpdCBoYXMgYmVlbg0KZXh0ZW5kZWQgdG8gYXMgbWFueSBhcyAxNDAgY3ljbGVzLg0KDQpB biBlYXJsaWVyIHNlY3Rpb24gZG9lcyBleHBsYWluIHdoeSB5b3UgbmVlZCBwYXVzZSB0aG91Z2gu DQpPbmUgb2YgaXRzIGVmZmVjdHMgaXMgdG8gc3RvcCB0aGUgY3B1IHNwZWN1bGF0aXZlbHkgZXhl Y3V0aW5nDQptdWx0aXBsZSBpdGVyYXRpb25zIG9mIHRoZSB3YWl0IGxvb2sgLSBlYWNoIHdpdGgg aXRzIG93bg0KcGVuZGluZyByZWFkIG9mIHRoZSBtZW1vcnkgbG9jYXRpb24gdGhhdCBpcyBiZWlu ZyBsb29rZWQgYXQuDQpVbndpbmRpbmcgdGhhdCBpc24ndCBmcmVlIC0gYW5kIHdhcyBwYXJ0aWN1 bGFybHkgZXhwZW5zaXZlIG9uDQpQNCBOZXRidXJzdCAtIHdoYXQgYSBzdXJwcmlzZSwgdGhleSBy YW4gZXZlcnl0aGluZyBleGNlcHQNCmJlbmNobWFyayBsb29rcyB2ZXJ5IHNsb3dseS4NCg0KCURh dmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3Vu dCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3 Mzg2IChXYWxlcykNCg==