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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS 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 664EEC31E5B for ; Mon, 17 Jun 2019 15:07:08 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 428332084D for ; Mon, 17 Jun 2019 15:07:08 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728400AbfFQPHH (ORCPT ); Mon, 17 Jun 2019 11:07:07 -0400 Received: from eu-smtp-delivery-151.mimecast.com ([146.101.78.151]:27844 "EHLO eu-smtp-delivery-151.mimecast.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728248AbfFQPHG (ORCPT ); Mon, 17 Jun 2019 11:07:06 -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-73-7E6ddmnkOVuQR4rZ3FkrjQ-1; Mon, 17 Jun 2019 16:07:03 +0100 Received: from AcuMS.Aculab.com (fd9f:af1c:a25b::d117) by AcuMS.aculab.com (fd9f:af1c:a25b::d117) with Microsoft SMTP Server (TLS) id 15.0.1347.2; Mon, 17 Jun 2019 16:07:03 +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; Mon, 17 Jun 2019 16:07:03 +0100 From: David Laight To: 'Josh Poimboeuf' CC: 'Alexei Starovoitov' , "x86@kernel.org" , "linux-kernel@vger.kernel.org" , Alexei Starovoitov , "Daniel Borkmann" , "netdev@vger.kernel.org" , "bpf@vger.kernel.org" , "Peter Zijlstra" , Song Liu , "Kairui Song" Subject: RE: [PATCH 6/9] x86/bpf: Fix JIT frame pointer usage Thread-Topic: [PATCH 6/9] x86/bpf: Fix JIT frame pointer usage Thread-Index: AQHVIjMat8Fq1dO6sUKm4aXwvliIEKaa+NdggAAgcYCAABJOQIAAJoAAgASjjuA= Date: Mon, 17 Jun 2019 15:07:03 +0000 Message-ID: References: <03ddea21a533b7b0e471c1d73ebff19dacdcf7e3.1560431531.git.jpoimboe@redhat.com> <20190613215807.wjcop6eaadirz5xm@ast-mbp.dhcp.thefacebook.com> <57f6e69da6b3461a9c39d71aa1b58662@AcuMS.aculab.com> <20190614134401.q2wbh6mvo4nzmw2o@treble> <9b8aa912df694d25b581786100d3e2e2@AcuMS.aculab.com> <20190614170720.57yxtxvd4qee337l@treble> In-Reply-To: <20190614170720.57yxtxvd4qee337l@treble> 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 X-MC-Unique: 7E6ddmnkOVuQR4rZ3FkrjQ-1 X-Mimecast-Spam-Score: 0 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 RnJvbTogSm9zaCBQb2ltYm9ldWYNCj4gU2VudDogMTQgSnVuZSAyMDE5IDE4OjA3DQouLi4NCj4g PiBJIGRvIHJlbWVtYmVyIGEgc3RhY2sgdHJhY2UgcHJpbnRlciBmb3IgeDg2IHRoaXMgZGlkbid0 IG5lZWQNCj4gPiBhbnkgYW5ub3RhdGlvbiBvZiB0aGUgb2JqZWN0IGNvZGUgYW5kIGRpZG4ndCBu ZWVkIGZyYW1lIHBvaW50ZXJzLg0KPiA+IFRoZSBvbmx5IGRvd25zaWRlIHdhcyB0aGF0IGl0IGhh ZCB0byAnZ3Vlc3MnIChpZSBzY2FuIHRoZSBzdGFjaykNCj4gPiB0byBnZXQgb3V0IG9mIGZ1bmN0 aW9ucyB0aGF0IGNvdWxkbid0IHJldHVybi4NCj4gPiBCYXNpY2FsbHkgaXQgZm9sbG93ZWQgdGhl IGNvbnRyb2wgZmxvdyBmb3J3YXJkcyB0cmFja2luZyB0aGUNCj4gPiB2YWx1ZXMgb2YgJXNwIGFu ZCAlYnAgdW50aWwgaXQgZm91bmQgYSByZXR1cm4gaW5zdHVjdGlvbi4NCj4gPiBBbGwgaXQgaGFz IHRvIGRvIGlzIGRldGVjdCBsb29wcyBhbmQgcmV0cnkgZnJvbSB0aGUgb3RoZXINCj4gPiB0YXJn ZXQgb2YgY29uZGl0aW9uYWwgYnJhbmNoZXMuDQo+IA0KPiBUaGF0IGFjdHVhbGx5IHNvdW5kcyBr aW5kIG9mIGNvb2wsIHRob3VnaCBJIGRvbid0IHRoaW5rIHdlIG5lZWQgdGhhdCBmb3INCj4gdGhl IGtlcm5lbC4NCg0KTm8gcmVhc29uIHdoeSBub3QuDQpJdCB3b3VsZCBzYXZlIG1vc3Qgb2YgdGhl IGluc3RydW1lbnRhdGlvbiB0aGUgb3JjIHVud2luZGVyIG5lZWRzLg0KSXQgaXNuJ3QgYXMgdGhv dWdoIHRoZSBwZXJmb3JtYW5jZSBvZiBrZXJuZWwgdHJhY2ViYWNrcyBpcyB0aGF0DQppbXBvcnRh bnQgKHByaW50ZiBhbmQgc3ltYm9sIGxvb2t1cCBwcm9iYWJseSBhbHdheXMgZG9taW5hdGVzKS4N ClRoZSBvbmx5IGRpZmZpY3VsdHkgZm9yIHg4NiBpcyBxdWlja2x5IGRldGVybWluaW5nIHRoZSBz aXplIG9mDQppbnN0cnVjdGlvbnMuDQoNCglEYXZpZA0KDQotDQpSZWdpc3RlcmVkIEFkZHJlc3Mg TGFrZXNpZGUsIEJyYW1sZXkgUm9hZCwgTW91bnQgRmFybSwgTWlsdG9uIEtleW5lcywgTUsxIDFQ VCwgVUsNClJlZ2lzdHJhdGlvbiBObzogMTM5NzM4NiAoV2FsZXMpDQo=