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 447C8C77B7F for ; Sat, 20 May 2023 13:03:13 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231253AbjETNDJ (ORCPT ); Sat, 20 May 2023 09:03:09 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:36114 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229609AbjETNDH (ORCPT ); Sat, 20 May 2023 09:03:07 -0400 Received: from eu-smtp-delivery-151.mimecast.com (eu-smtp-delivery-151.mimecast.com [185.58.86.151]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4FC00121 for ; Sat, 20 May 2023 06:03:06 -0700 (PDT) Received: from AcuMS.aculab.com (156.67.243.121 [156.67.243.121]) by relay.mimecast.com with ESMTP with both STARTTLS and AUTH (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_CBC_SHA384) id uk-mta-133-LK-B9zgTPvWRVmrWC1tFjw-1; Sat, 20 May 2023 14:02:58 +0100 X-MC-Unique: LK-B9zgTPvWRVmrWC1tFjw-1 Received: from AcuMS.Aculab.com (10.202.163.6) by AcuMS.aculab.com (10.202.163.6) with Microsoft SMTP Server (TLS) id 15.0.1497.48; Sat, 20 May 2023 14:02:57 +0100 Received: from AcuMS.Aculab.com ([::1]) by AcuMS.aculab.com ([::1]) with mapi id 15.00.1497.048; Sat, 20 May 2023 14:02:57 +0100 From: David Laight To: 'Willem de Bruijn' , Breno Leitao CC: "axboe@kernel.dk" , "davem@davemloft.net" , "edumazet@google.com" , "kuba@kernel.org" , "pabeni@redhat.com" , "courmisch@gmail.com" , "nhorman@tuxdriver.com" , "asml.silence@gmail.com" , "alex.aring@gmail.com" , "dccp@vger.kernel.org" , "mptcp@lists.linux.dev" , "linux-kernel@vger.kernel.org" , "matthieu.baerts@tessares.net" , "marcelo.leitner@gmail.com" , "linux-wpan@vger.kernel.org" , "linux-sctp@vger.kernel.org" , "leit@fb.com" , "dsahern@kernel.org" Subject: RE: [PATCH 1/1] net: ioctl: Use kernel memory on protocol ioctl callbacks Thread-Topic: [PATCH 1/1] net: ioctl: Use kernel memory on protocol ioctl callbacks Thread-Index: AQHZimPokjARdT8YlUi1kSrEdFLkt69jHkPA Date: Sat, 20 May 2023 13:02:57 +0000 Message-ID: References: <20230519135821.922326-1-leitao@debian.org> <20230519135821.922326-2-leitao@debian.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 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 RnJvbTogV2lsbGVtIGRlIEJydWlqbg0KPiBTZW50OiAxOSBNYXkgMjAyMyAxNjowOQ0KLi4uDQo+ IFNpbmNlIHRoYXQgaXMgYSBsaW1pdGVkIHdlbGwgdW5kZXJzdG9vZCBsaXN0LCBJJ20gbm90IGlu IGZhdm9yIG9mIHRoZQ0KPiBzdWdnZXN0aW9uIHRvIGFkZCBhbiBleHBsaWNpdCBsZW5ndGggYXJn dW1lbnQgdGhhdCB0aGVuIG5lZWRzIHRvIGJlDQo+IGNoZWNrZWQgaW4gZWFjaCBjYWxsZWUuDQoN CldoaWxlIGNhbGxzIGZyb20gdXNlcnNwYWNlIGFuZCBkaXJlY3QgY2FsbHMgZnJvbSBkcml2ZXJz IGNhbiBiZQ0KcmVhc29uYWJseSBleHBlY3RlZCB0byBoYXZlIHRoZSByZXF1aXJlZCBsZW5ndGgg YnVmZmVyLCBJJ20NCm5vdCBzdXJlIHRoYXQgaXMgZ3VhcmFudGVlZCBmb3IgaW5kaXJlY3QgY2Fs bHMgdmlhIGlvX3VyaW5nDQphbmQgYnBmLg0KSW4gdGhvc2UgY2FzZXMgdGhlIGFzc29jaWF0ZWQg bGVuZ3RoIGlzIGxpa2VseSB0byBjb21lIGZyb20NCnVzZXJzcGFjZSBhbmQgYSBzdWl0YWJseSBz aXplZCBrZXJuZWwgYnVmZmVyIGFsbG9jYXRlZC4NClNvIHNvbWV0aGluZyBuZWVkcyB0byBlbnN1 cmUgdGhlIGJ1ZmZlciBpcyBsb25nIGVub3VnaA0KKGFuZCwgaW5kZWVkLCBub3Qgc3R1cGlkbHkg bG9uZykuDQoNCk5vdyB5b3UgY291bGQgcmVxdWlyZSB0aGF0IHRoZSBjYWxsZXIgYWx3YXlzIHN1 cHBseSBhIGJ1ZmZlcg0Kb2YgYXQgbGVhc3QgKHNheSkgNjQgYnl0ZXMgYXMgd2VsbCBhcyB0aGUg YWN0dWFsIGxlbmd0aC4NClRoZW4gb25seSBjYWxsZWUgZnVuY3Rpb25zIHRoYXQgaGF2ZSBhIGxv bmcgYnVmZmVyIG5lZWQgY2hlY2suDQoNCkFuIGFsdGVybmF0ZSBvcHRpb24gaXMgdG8gZGVmaW5l IGEgdW5pb24gb2YgYWxsIHRoZSB2YWxpZA0KYXJndW1lbnQgdHlwZXMgYW5kIHJlcXVpcmUgdGhh dCBhbnkgY29kZSBtYWtpbmcgJ3Vua25vd24nDQpyZXF1ZXN0cyBzdXBwbHkgYSBrZXJuZWwgYnVm ZmVyIG9mIHRoYXQgbGVuZ3RoLg0KKFdpdGggZHVlIGNhcmUgdGFrZW4gdG8gYXZvaWQgb3Zlcmxv bmcgY29waWVzIG9mIHVuaW5pdGlhbGlzZWQNCmtlcm5lbCBtZW1vcnkgYmFjayB0byB1c2Vyc3Bh Y2UuKQ0KDQpUaGUgc2FtZSB1bmlvbiB3b3VsZCBiZSB1c2VmdWwgYXMgYW4gdXBwZXIgYm91bmQg Zm9yIHRoZQ0Ka2VybmVsIGJ1ZmZlciBzaXplIC0gZXZlbiBpZiBpdCBpcyB0b28gbGFyZ2UgdG8g YWx3YXlzDQphbGxvY2F0ZSBvbiBzdGFjay4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRk cmVzcyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBN SzEgMVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==