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[23.128.96.18]) by mx.google.com with ESMTP id a23si1762843edb.432.2020.10.23.17.37.24; Fri, 23 Oct 2020 17:37:47 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) client-ip=23.128.96.18; Authentication-Results: mx.google.com; spf=pass (google.com: domain of linux-kernel-owner@vger.kernel.org designates 23.128.96.18 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=aculab.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756947AbgJWVwW (ORCPT + 99 others); Fri, 23 Oct 2020 17:52:22 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:39695 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1756849AbgJWVwV (ORCPT ); Fri, 23 Oct 2020 17:52:21 -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-12-QwgdOorUNLe2Ru_w3N1p4w-1; Fri, 23 Oct 2020 22:52:17 +0100 X-MC-Unique: QwgdOorUNLe2Ru_w3N1p4w-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; Fri, 23 Oct 2020 22:52:16 +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; Fri, 23 Oct 2020 22:52:16 +0100 From: David Laight To: 'Linus Torvalds' , Peter Anvin CC: Rasmus Villemoes , Thomas Gleixner , Ingo Molnar , Borislav Petkov , the arch/x86 maintainers , "Sean Christopherson" , Naresh Kamboju , Linux Kernel Mailing List Subject: RE: [PATCH] x86/uaccess: fix code generation in put_user() Thread-Topic: [PATCH] x86/uaccess: fix code generation in put_user() Thread-Index: AQHWqYEb2jCDJax3wEWt3nUPTzGU4qmluWig Date: Fri, 23 Oct 2020 21:52:16 +0000 Message-ID: References: <20201023203154.27335-1-linux@rasmusvillemoes.dk> <8820745F-E761-42E6-8A70-7B04EE70692C@zytor.com> In-Reply-To: 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 RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMjMgT2N0b2JlciAyMDIwIDIyOjExDQo+IA0K PiBPbiBGcmksIE9jdCAyMywgMjAyMCBhdCAyOjAwIFBNIDxocGFAenl0b3IuY29tPiB3cm90ZToN Cj4gPg0KPiA+IFRoZXJlIGlzIG5vIHNhbWUgcmVhc29uIHRvIG1lc3MgYXJvdW5kIHdpdGggaGFj a3Mgd2hlbiB3ZSBhcmUgdGFsa2luZyBhYm91dCBkeDpheCwgdGhvdWdoLg0KPiANCj4gU3VyZSB0 aGVyZSBpcy4NCj4gDQo+ICJBIiBkb2Vzbid0IGFjdHVhbGx5IG1lYW4gJWVkeDolZWF4IGxpa2Ug eW91IHNlZW0gdG8gdGhpbmsuDQo+IA0KPiBJdCBhY3R1YWxseSBtZWFucyAlZWF4IE9SICVlZHgs IGFuZCB0aGVuIGlmIGdpdmVuIGEgNjQtYml0IHZhbHVlLCBpdA0KPiB3aWxsIHVzZSB0aGUgY29t YmluYXRpb24gKHdpdGggJWVkeCBiZWluZyB0aGUgaGlnaCBiaXRzKS4NCj4gDQo+IFNvIHVzaW5n ICJBIiB1bmNvbmRpdGlvbmFsbHkgZG9lc24ndCB3b3JrIC0gaXQgZ2l2ZXMgcmFuZG9tIGJlaGF2 aW9yDQo+IGZvciAzMi1iaXQgKG9yIHNtYWxsZXIpIHR5cGVzLg0KPiANCj4gT3IgeW91J2QgaGF2 ZSB0byBjYXN0IHRoZSB2YWx1ZSB0byBhbHdheXMgYmUgNjQtYml0LCBhbmQgaGF2ZSB0aGUNCj4g ZXh0cmEgY29kZSBnZW5lcmF0aW9uLg0KPiANCj4gSU9XLCBhbiB1bmNvbmRpdGlvbmFsICJBIiBp cyB3cm9uZy4NCj4gDQo+IEFuZCB0aGUgYWx0ZXJuYXRpdmUgaXMgdG8ganVzdCBkdXBsaWNhdGUg dGhpbmdzLCBhbmQgZ28gYmFjayB0byB0aGUNCj4gZXhwbGljaXQgc2l6ZSB0ZXN0aW5nLCBidXQg aG9uZXN0bHksIEkgcmVhbGx5IHRoaW5rIHRoYXQncyBtdWNoIHdvcnNlDQo+IHRoYW4gcmVseWlu ZyBvbiBhIGRvY3VtZW50ZWQgZmVhdHVyZSBvZiAicmVnaXN0ZXIgYXNtKCkiIHRoYXQgZ2NjDQo+ IF9kb2N1bWVudHNfIGlzIGZvciB0aGlzIGtpbmQgb2YgaW5saW5lIGFzbSB1c2UuDQoNCkNvdWxk IGRvX3B1dF91c2VyKCkgZG8gYW4gaW5pdGlhbCBjaGVjayBmb3IgNjQgYml0DQp0aGVuIGV4cGFu ZCBhIGRpZmZlcmVudCAjZGVmaW5lIHRoYXQgY29udGFpbnMgdGhlIGFjdHVhbA0KY29kZSBwYXNz aW5nIGVpdGhlciAiYSIgb3IgIkEiIGZvciB0aGUgY29uc3RyaWFudC4NCg0KQXBhcnQgZnJvbSBh bm90aGVyIGxldmVsIG9mIGluZGlyZWN0aW9uIG5vdGhpbmcgaXMgZHVwbGljYXRlZC4NCg0KCURh dmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3Vu dCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3 Mzg2IChXYWxlcykNCg==