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=-8.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE, SPF_PASS,URIBL_BLOCKED autolearn=ham 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 AB759C4361A for ; Fri, 4 Dec 2020 09:04:38 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 49EC4227BF for ; Fri, 4 Dec 2020 09:04:38 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1727735AbgLDJEW (ORCPT ); Fri, 4 Dec 2020 04:04:22 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([207.82.80.151]:20900 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726614AbgLDJEV (ORCPT ); Fri, 4 Dec 2020 04:04:21 -0500 Received: from AcuMS.aculab.com (156.67.243.126 [156.67.243.126]) (Using TLS) by relay.mimecast.com with ESMTP id uk-mta-272-foInBB0XPqCkeKQcwqosjg-1; Fri, 04 Dec 2020 09:02:41 +0000 X-MC-Unique: foInBB0XPqCkeKQcwqosjg-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, 4 Dec 2020 09:02:41 +0000 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, 4 Dec 2020 09:02:41 +0000 From: David Laight To: 'Eric Dumazet' CC: Stephen Hemminger , Arjun Roy , "davem@davemloft.net" , "netdev@vger.kernel.org" , "arjunroy@google.com" , "soheil@google.com" Subject: RE: [net-next v2 1/8] net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy. Thread-Topic: [net-next v2 1/8] net-zerocopy: Copy straggler unaligned data for TCP Rx. zerocopy. Thread-Index: AQHWyQnnIy5Nhf4BLE+JcVO2pr+xUKnl/WUAgAAEsACAAKQNIA== Date: Fri, 4 Dec 2020 09:02:40 +0000 Message-ID: <1aabb09d81d24480ab2cf99e30138a3e@AcuMS.aculab.com> References: <20201202220945.911116-1-arjunroy.kdev@gmail.com> <20201202220945.911116-2-arjunroy.kdev@gmail.com> <20201202161527.51fcdcd7@hermes.local> <384c6be35cc044eeb1bbcf5dcc6d819f@AcuMS.aculab.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: netdev@vger.kernel.org RnJvbTogRXJpYw0KPiBTZW50OiAwMyBEZWNlbWJlciAyMDIwIDIzOjE1DQo+IA0KPiBPbiBGcmks IERlYyA0LCAyMDIwIGF0IDEyOjAxIEFNIERhdmlkIExhaWdodCA8RGF2aWQuTGFpZ2h0QGFjdWxh Yi5jb20+IHdyb3RlOg0KPiA+DQo+ID4gRnJvbTogU3RlcGhlbiBIZW1taW5nZXINCj4gPiA+IFNl bnQ6IDAzIERlY2VtYmVyIDIwMjAgMDA6MTUNCj4gPiA+DQo+ID4gPiBPbiBXZWQsICAyIERlYyAy MDIwIDE0OjA5OjM4IC0wODAwDQo+ID4gPiBBcmp1biBSb3kgPGFyanVucm95LmtkZXZAZ21haWwu Y29tPiB3cm90ZToNCj4gPiA+DQo+ID4gPiA+IGRpZmYgLS1naXQgYS9pbmNsdWRlL3VhcGkvbGlu dXgvdGNwLmggYi9pbmNsdWRlL3VhcGkvbGludXgvdGNwLmgNCj4gPiA+ID4gaW5kZXggY2ZjYjEw Yjc1NDgzLi42MmRiNzhiOWMxYTAgMTAwNjQ0DQo+ID4gPiA+IC0tLSBhL2luY2x1ZGUvdWFwaS9s aW51eC90Y3AuaA0KPiA+ID4gPiArKysgYi9pbmNsdWRlL3VhcGkvbGludXgvdGNwLmgNCj4gPiA+ ID4gQEAgLTM0OSw1ICszNDksNyBAQCBzdHJ1Y3QgdGNwX3plcm9jb3B5X3JlY2VpdmUgew0KPiA+ ID4gPiAgICAgX191MzIgcmVjdl9za2lwX2hpbnQ7ICAgLyogb3V0OiBhbW91bnQgb2YgYnl0ZXMg dG8gc2tpcCAqLw0KPiA+ID4gPiAgICAgX191MzIgaW5xOyAvKiBvdXQ6IGFtb3VudCBvZiBieXRl cyBpbiByZWFkIHF1ZXVlICovDQo+ID4gPiA+ICAgICBfX3MzMiBlcnI7IC8qIG91dDogc29ja2V0 IGVycm9yICovDQo+ID4gPiA+ICsgICBfX3U2NCBjb3B5YnVmX2FkZHJlc3M7ICAvKiBpbjogY29w eWJ1ZiBhZGRyZXNzIChzbWFsbCByZWFkcykgKi8NCj4gPiA+ID4gKyAgIF9fczMyIGNvcHlidWZf bGVuOyAvKiBpbi9vdXQ6IGNvcHlidWYgYnl0ZXMgYXZhaWwvdXNlZCBvciBlcnJvciAqLw0KPiA+ DQo+ID4gWW91IG5lZWQgdG8gc3dhcCB0aGUgb3JkZXIgb2YgdGhlIGFib3ZlIGZpZWxkcyB0byBh dm9pZCBwYWRkaW5nDQo+ID4gYW5kIGRpZmZlcmluZyBhbGlnbm1lbnRzIGZvciAzMmJpdCBhbmQg NjRiaXQgYXBwcy4NCj4gDQo+IEkgZG8gbm90IHRoaW5rIHNvLiBQbGVhc2UgcmV2aWV3IHRoaXMg cGF0Y2ggc2VyaWVzIGNhcmVmdWxseS4NCg0KTGF0ZSBhdCBuaWdodC4NClRoZSBhY3R1YWwgcHJv YmxlbSBpcyAndGFpbCBwYWRkaW5nJy4NCg0KCURhdmlkDQoNCi0NClJlZ2lzdGVyZWQgQWRkcmVz cyBMYWtlc2lkZSwgQnJhbWxleSBSb2FkLCBNb3VudCBGYXJtLCBNaWx0b24gS2V5bmVzLCBNSzEg MVBULCBVSw0KUmVnaXN0cmF0aW9uIE5vOiAxMzk3Mzg2IChXYWxlcykNCg==