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[209.132.180.67]) by mx.google.com with ESMTP id a1si4747979oie.70.2020.03.29.11.05.42; Sun, 29 Mar 2020 11:05:55 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 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 S1728322AbgC2SDx (ORCPT + 99 others); Sun, 29 Mar 2020 14:03:53 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:43072 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727485AbgC2SDx (ORCPT ); Sun, 29 Mar 2020 14:03:53 -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-41-r2SE0-ZcOEuUtzd3gZHoQA-1; Sun, 29 Mar 2020 19:03:50 +0100 X-MC-Unique: r2SE0-ZcOEuUtzd3gZHoQA-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; Sun, 29 Mar 2020 19:03:49 +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; Sun, 29 Mar 2020 19:03:49 +0100 From: David Laight To: 'Linus Torvalds' CC: Andy Lutomirski , Ingo Molnar , "Al Viro" , Thomas Gleixner , X86 ML , LKML , Borislav Petkov Subject: RE: [RFC][PATCH 01/22] x86 user stack frame reads: switch to explicit __get_user() Thread-Topic: [RFC][PATCH 01/22] x86 user stack frame reads: switch to explicit __get_user() Thread-Index: AQHWBeo2BuGXOsXgxk+vqOM7n5IKaahf05lg///2sYCAABJhQA== Date: Sun, 29 Mar 2020 18:03:49 +0000 Message-ID: <9352bc55302d4589aaf2461c7b85fb6b@AcuMS.aculab.com> References: <20200323183620.GD23230@ZenIV.linux.org.uk> <20200323183819.250124-1-viro@ZenIV.linux.org.uk> <20200328104857.GA93574@gmail.com> <20200328115936.GA23230@ZenIV.linux.org.uk> <20200329092602.GB93574@gmail.com> <489c9af889954649b3453e350bab6464@AcuMS.aculab.com> 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 X-Mimecast-Spam-Score: 0 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 RnJvbTogTGludXMgVG9ydmFsZHMNCj4gU2VudDogMjkgTWFyY2ggMjAyMCAxODo1Nw0KPiBPbiBT dW4sIE1hciAyOSwgMjAyMCBhdCAxMDo0MSBBTSBEYXZpZCBMYWlnaHQgPERhdmlkLkxhaWdodEBh Y3VsYWIuY29tPiB3cm90ZToNCj4gPg0KPiA+IEl0IG1heSBiZSB3b3J0aCBpbXBsZW1lbnRpbmcg Z2V0X3VzZXIoKSBhcyBhbiBpbmxpbmUNCj4gPiBmdW5jdGlvbiB0aGF0IHdyaXRlcyB0aGUgcmVz dWx0IG9mIGFjY2Vzc19vaygpIHRvIGENCj4gPiAnYnkgcmVmZXJlbmNlJyBwYXJhbWV0ZXIgYW5k IHRoZW4gcmV0dXJucyB0aGUgdmFsdWUNCj4gPiBmcm9tIGFuICdyZWFsJyBfX2dldF91c2VyKCkg ZnVuY3Rpb24uDQo+IA0KPiBUaGF0J3MgaG93IGdldF91c2VyKCkgYWxyZWFkeSB3b3Jrcy4NCj4g DQo+IEl0IGlzIGEgcG9seW1vcnBoaWMgZnVuY3Rpb24gKGRvbmUgdXNpbmcgbWFjcm9zLCBzaXpl b2YoKSBhbmQgdWdseQ0KPiBjb21waWxlciB0cmlja3MpIHRoYXQgZ2VuZXJhdGVzIGEgY2FsbCwg eWVzLiBCdXQgaXQncyBub3QgYSBub3JtYWwgQw0KPiBjYWxsLiBPbiB4ODYtNjQsIGl0IHJldHVy bnMgdGhlIGVycm9yIGNvZGUgaW4gJXJheCwgYW5kIHRoZSB2YWx1ZSBpbg0KPiAlcmR4DQoNCkkg bXVzdCBiZSBtaXMtcmVtZW1iZXJpbmcgdGhlIG9iamVjdCBjb2RlIGZyb20gbGFzdCB0aW1lDQpJ IGxvb2tlZCBhdCBpdC4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtlc2lk ZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBVSw0K UmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==