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 793A0C433EF for ; Mon, 13 Dec 2021 15:37:21 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235263AbhLMPhT (ORCPT ); Mon, 13 Dec 2021 10:37:19 -0500 Received: from eu-smtp-delivery-151.mimecast.com ([185.58.85.151]:42147 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232862AbhLMPhS (ORCPT ); Mon, 13 Dec 2021 10:37:18 -0500 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-58-a24iemFmMfm37i7mZ3Uxgw-1; Mon, 13 Dec 2021 15:37:16 +0000 X-MC-Unique: a24iemFmMfm37i7mZ3Uxgw-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 15.0.1497.26; Mon, 13 Dec 2021 15:37:15 +0000 Received: from AcuMS.Aculab.com ([fe80::994c:f5c2:35d6:9b65]) by AcuMS.aculab.com ([fe80::994c:f5c2:35d6:9b65%12]) with mapi id 15.00.1497.026; Mon, 13 Dec 2021 15:37:15 +0000 From: David Laight To: 'Dave Hansen' , 'Noah Goldstein' , Eric Dumazet CC: "tglx@linutronix.de" , "mingo@redhat.com" , Borislav Petkov , "dave.hansen@linux.intel.com" , X86 ML , "hpa@zytor.com" , "peterz@infradead.org" , "alexanderduyck@fb.com" , open list , netdev Subject: RE: [PATCH] x86/lib: Remove the special case for odd-aligned buffers in csum_partial.c Thread-Topic: [PATCH] x86/lib: Remove the special case for odd-aligned buffers in csum_partial.c Thread-Index: AdfwL8CqMU0zbyVyQYmiKOZRxmZfsgAAq7MAAADny8A= Date: Mon, 13 Dec 2021 15:37:15 +0000 Message-ID: <96b6a476c4154da3bd04996139cd8a6d@AcuMS.aculab.com> References: <45d12aa0c95049a392d52ff239d42d83@AcuMS.aculab.com> <52edd5fd-daa0-729b-4646-43450552d2ab@intel.com> In-Reply-To: <52edd5fd-daa0-729b-4646-43450552d2ab@intel.com> 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-kernel@vger.kernel.org RnJvbTogRGF2ZSBIYW5zZW4NCj4gU2VudDogMTMgRGVjZW1iZXIgMjAyMSAxNTowMg0KLmMNCj4g DQo+IE9uIDEyLzEzLzIxIDY6NDMgQU0sIERhdmlkIExhaWdodCB3cm90ZToNCj4gPiBUaGVyZSBp cyBubyBuZWVkIHRvIHNwZWNpYWwgY2FzZSB0aGUgdmVyeSB1bnVzdWFsIG9kZC1hbGlnbmVkIGJ1 ZmZlcnMuDQo+ID4gVGhleSBhcmUgbm8gd29yc2UgdGhhbiA0bisyIGFsaWduZWQgYnVmZmVycy4N Cj4gPg0KPiA+IFNpZ25lZC1vZmYtYnk6IERhdmlkIExhaWdodCA8ZGF2aWQubGFpZ2h0QGFjdWxh Yi5jb20+DQo+ID4gLS0tDQo+ID4NCj4gPiBPbiBhbiBpNy03NzAwIG1pc2FsaWduZWQgYnVmZmVy cyBhZGQgMiBvciAzIGNsb2NrcyAoaW4gMTE1KSB0byBhIDUxMiBieXRlDQo+ID4gICBjaGVja3N1 bS4NCj4gPiBUaGF0IGlzIGp1c3QgbWVhc3VyaW5nIHRoZSBtYWluIGxvb3Agd2l0aCBhbiBsZmVu Y2UgcHJpb3IgdG8gcmRwbWMgdG8NCj4gPiByZWFkIFBFUkZfQ09VTlRfSFdfQ1BVX0NZQ0xFUy4N Cj4gDQo+IEknbSBhIGJpdCBjb25mdXNlZCBieSB0aGlzIGNoYW5nZWxvZy4NCj4gDQo+IEFyZSB5 b3Ugc2F5aW5nIHRoYXQgdGhlIHBhdGNoIGNhdXNlcyBhIChzbWFsbCkgcGVyZm9ybWFuY2UgcmVn cmVzc2lvbj8NCj4gDQo+IEFyZSB5b3UgYWxzbyBzYXlpbmcgdGhhdCB0aGUgb3B0aW1pemF0aW9u IGhlcmUgaXMgbm90IHdvcnRoIGl0IGJlY2F1c2UNCj4gaXQgc2F2ZXMgMTUgbGluZXMgb2YgY29k ZT8gIE9yIHRoYXQgdGhlIG1pc2FsaWdubWVudCBjaGVja3MgdGhlbXNlbHZlcw0KPiBhZGQgMiBv ciAzIGN5Y2xlcywgYW5kIHRoaXMgaXMgYW4gKm9wdGltaXphdGlvbio/DQoNCkknbSBzYXlpbmcg dGhhdCBpdCBjYW4ndCBiZSB3b3J0aCBvcHRpbWlzaW5nIGZvciBhIG1pc2FsaWduZWQNCmJ1ZmZl ciBiZWNhdXNlIHRoZSBjb3N0IG9mIHRoZSBidWZmZXIgYmVpbmcgbWlzYWxpZ25lZCBpcyBzbyBz bWFsbC4NClNvIHRoZSB0ZXN0IGZvciBhIG1pc2FsaWduZWQgYnVmZmVyIGFyZSBnb2luZyB0byBj b3N0IG1vcmUgdGhhbg0KYW5kIHBsYXVzaWJsZSBnYWluLg0KDQpOb3Qgb25seSB0aGF0IHRoZSBi dWZmZXIgd2lsbCBuZXZlciBiZSBvZGQgYWxpZ25lZCBhdCBhbGwuDQoNClRoZSBjb2RlIGlzIGxl ZnQgaW4gZnJvbSBhIHByZXZpb3VzIHZlcnNpb24gdGhhdCBkaWQgZG8gYWxpZ25lZA0Kd29yZCBy ZWFkcyAtIHNvIGhhZCB0byBkbyBleHRyYSBmb3Igb2RkIGFsaWdubWVudC4NCg0KTm90ZSB0aGF0 IGNvZGUgaXMgZG9pbmcgbWlzYWxpZ25lZCByZWFkcyBmb3IgdGhlIG1vcmUgbGlrZWx5IDRuKzIN CmFsaWduZWQgZXRoZXJuZXQgcmVjZWl2ZSBidWZmZXJzLg0KSSBkb3VidCB0aGF0IGV2ZW4gYSB0 ZXN0IGZvciB0aGF0IHdvdWxkIGJlIHdvcnRod2hpbGUgZXZlbiBpZiB5b3UNCndlcmUgY2hlY2tz dW1taW5nIGZ1bGwgc2l6ZWQgZXRoZXJuZXQgcGFja2V0cy4NCg0KU28gdGhlIGNoYW5nZSBpcyBk ZWxldGluZyBjb2RlIHRoYXQgaXMgbmV2ZXIgYWN0dWFsbHkgZXhlY3V0ZWQNCmZyb20gdGhlIGhv dCBwYXRoLg0KDQoJRGF2aWQNCg0KLQ0KUmVnaXN0ZXJlZCBBZGRyZXNzIExha2VzaWRlLCBCcmFt bGV5IFJvYWQsIE1vdW50IEZhcm0sIE1pbHRvbiBLZXluZXMsIE1LMSAxUFQsIFVLDQpSZWdpc3Ry YXRpb24gTm86IDEzOTczODYgKFdhbGVzKQ0K