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=-1.0 required=3.0 tests=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 8F538C433DF for ; Thu, 2 Jul 2020 07:55:35 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 7589220748 for ; Thu, 2 Jul 2020 07:55:35 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726892AbgGBHze (ORCPT ); Thu, 2 Jul 2020 03:55:34 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.86.151]:47423 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1725287AbgGBHzd (ORCPT ); Thu, 2 Jul 2020 03:55:33 -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-119-yl_OAD0oOpipGC1tkdZXrg-1; Thu, 02 Jul 2020 08:55:28 +0100 X-MC-Unique: yl_OAD0oOpipGC1tkdZXrg-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; Thu, 2 Jul 2020 08:55:28 +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; Thu, 2 Jul 2020 08:55:28 +0100 From: David Laight To: 'Kars Mulder' CC: Greg Kroah-Hartman , Pavel Machek , "linux-kernel@vger.kernel.org" , Kai-Heng Feng Subject: RE: Writing to a const pointer: is this supposed to happen? Thread-Topic: Writing to a const pointer: is this supposed to happen? Thread-Index: AQHWSju/rqA8ozob6UepcWuq3RM2GKjsP5LwgAcSxwCAAKR74A== Date: Thu, 2 Jul 2020 07:55:27 +0000 Message-ID: <32182d4126fd49dabac4091b7a6c89e7@AcuMS.aculab.com> References: <0ceda3b41fe446e792fce5ff2634c48f@AcuMS.aculab.com> <1f2d-5efd1600-b3-caae120@315006> In-Reply-To: <1f2d-5efd1600-b3-caae120@315006> 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 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-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 RnJvbTogS2FycyBNdWxkZXINCj4gU2VudDogMDIgSnVseSAyMDIwIDAwOjAzDQo+IE9uIFNhdHVy ZGF5LCBKdW5lIDI3LCAyMDIwIDEyOjI0IENFU1QsIERhdmlkIExhaWdodCB3cm90ZToNCj4gPiBU aGUgY29kZSBxdW90ZWQgKHVzaW5nIHN0cnNldCgpKSBpcyBhbG1vc3QgY2VydGFpbmx5IHdyb25n Lg0KPiA+IFRoZSBjYWxsZXIgaXMgdW5saWtlbHkgdG8gZXhwZWN0IHRoZSBpbnB1dCBiZSBtb2Rp ZmllZC4NCj4gPiBTaW5jZSBpdCBkb2Vzbid0IGZhdWx0IHRoZSBzdHJpbmcgbXVzdCBiZSBpbiBy ZWFkLXdyaXRlIG1lbW9yeS4NCj4gDQo+IEkgdHJpZWQgd3JpdGluZyBhIHBhdGNoIHRoYXQgYXZv aWRzIHRoZSB3cml0aW5nLXRvLWNvbnN0LXBvaW50ZXIgaXNzdWUNCj4gYnkgdXNpbmcgdGhlIGxl c3MgaW50cnVzaXZlIHNzY2FuZiBmdW5jdGlvbiBpbnN0ZWFkIG9mIHN0cnNlcC4gSXQgbWlnaHQN Cj4gYXZvaWQgYSBwb3RlbnRpYWwgYnVnIHdoZW4gc29tZWJvZHkgd3JvbmdseSBhc3N1bWVzIHRo YXQgYQ0KPiBrZXJuZWxfcGFyYW1fb3BzLnNldCBmdW5jdGlvbiB3aWxsIG5vdCB3cml0ZSB0byBp dHMgY29uc3QgY2hhciogYXJndW1lbnQuDQoNCkhtbS4uLiBzc2NhbmYoKSBpcyBhbHNvIGhvcnJp ZC4NClN1cnByaXNpbmdseSBkaWZmaWN1bHQgdG8gdXNlIGNvcnJlY3RseS4NCg0KSXQgaXMgdXN1 YWxseSBiZXN0IHRvIHVzZSBzdHJjaHIoKSAoYW5kIG1heWJlIHN0cltjXXNjbigpKQ0KdG8gcGFy c2Ugc3RyaW5ncy4NCkZvciBudW1iZXJzIHVzZSB3aGF0ZXZlciB0aGUga2VybmVscyBjdXJyZW50 ICdmYXZvdXJpdGUnIGltcGxlbWVudGF0aW9uDQpvZiBzdHJ0b3VsKCkgaXMgY2FsbGVkLg0KDQoJ RGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFtbGV5IFJvYWQsIE1v dW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3RyYXRpb24gTm86IDEz OTczODYgKFdhbGVzKQ0K