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 7964AC433F5 for ; Thu, 24 Feb 2022 09:54:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232968AbiBXJyh (ORCPT ); Thu, 24 Feb 2022 04:54:37 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47672 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232742AbiBXJyh (ORCPT ); Thu, 24 Feb 2022 04:54:37 -0500 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTP id 9579128571A for ; Thu, 24 Feb 2022 01:54:07 -0800 (PST) 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-97-kWCom7ZBN6GbmZxlHh1VyQ-1; Thu, 24 Feb 2022 09:54:05 +0000 X-MC-Unique: kWCom7ZBN6GbmZxlHh1VyQ-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; Thu, 24 Feb 2022 09:54:04 +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; Thu, 24 Feb 2022 09:54:04 +0000 From: David Laight To: 'Geert Uytterhoeven' CC: Kees Cook , linux-m68k , Linux Kernel Mailing List , "linux-hardening@vger.kernel.org" Subject: RE: [PATCH] m68k: Implement "current_stack_pointer" Thread-Topic: [PATCH] m68k: Implement "current_stack_pointer" Thread-Index: AQHYKVzdWGzmeUZEQEqpz/PmAjDYBqyiaMrQgAAC+ICAAAoScA== Date: Thu, 24 Feb 2022 09:54:04 +0000 Message-ID: <95b9c3e8227a4892b26cc0384d1782c2@AcuMS.aculab.com> References: <20220224060448.1856091-1-keescook@chromium.org> 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-m68k@vger.kernel.org RnJvbTogR2VlcnQgVXl0dGVyaG9ldmVuIDxnZWVydEBsaW51eC1tNjhrLm9yZz4NCj4gU2VudDog MjQgRmVicnVhcnkgMjAyMiAwOToxNw0KPiANCj4gT24gVGh1LCBGZWIgMjQsIDIwMjIgYXQgMTA6 MTIgQU0gRGF2aWQgTGFpZ2h0IDxEYXZpZC5MYWlnaHRAYWN1bGFiLmNvbT4gd3JvdGU6DQo+ID4g RnJvbTogR2VlcnQgVXl0dGVyaG9ldmVuDQo+ID4gPiBTZW50OiAyNCBGZWJydWFyeSAyMDIyIDA4 OjU5DQo+ID4gLi4uDQo+ID4gPiA+ICtyZWdpc3RlciB1bnNpZ25lZCBsb25nIGN1cnJlbnRfc3Rh Y2tfcG9pbnRlciBfX2FzbV9fKCJzcCIpOw0KPiA+ID4NCj4gPiA+IEkgZG9uJ3Qga25vdyB3aGF0 IEhBUkRFTkVEX1VTRVJDT1BZIGRvZXMsIHNvIEkgZG9uJ3Qga25vdyBpZiB5b3UgbmVlZA0KPiA+ ID4gInVzcCIgKHNlZSByZHVzcCgpKSBvciAic3AiPw0KPiA+DQo+ID4gSEFSREVORURfVVNFUkNP UFkgc2lnbmlmaWNhbnRseSBzbG93cyBkb3duIHNvbWUgc3lzdGVtcyBjYWxscw0KPiA+IChlc3Bl Y2lhbGx5IHRoaW5ncyBsaWtlIHNlbmRtc2coKSkgYnkgdHJ5aW5nIHRvIHJ1bi10aW1lIHZlcmlm eQ0KPiA+IHRoYXQgdGhlIGtlcm5lbCBidWZmZXIgZG9lc24ndCBvdmVycnVuIGEgc3RhY2sgZnJh bWUgb3Iga21hbGxvYygpZWQNCj4gDQo+IEtlcm5lbCBzdGFjayBmcmFtZSBvZiB1c2VyIHN0YWNr IGZyYW1lPw0KDQpLZXJuZWwsIHRoZSBrZXJuZWwgZG9lc24ndCBjYXJlIGlmIHRoZSB1c2VyIHN0 YWNrIGdldHMgdHJhc2hlZC4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVzcyBMYWtl c2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEgMVBULCBV Sw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==