Received: by 2002:ad5:474a:0:0:0:0:0 with SMTP id i10csp462415imu; Wed, 16 Jan 2019 01:59:59 -0800 (PST) X-Google-Smtp-Source: ALg8bN4vDUc0oktMMF5HlyTM/jumuUwgpJMgUqCZqbUqoUfWTrknYGgdUq5+WG05w+aY9gmzoNZO X-Received: by 2002:a62:931a:: with SMTP id b26mr9225878pfe.65.1547632799318; Wed, 16 Jan 2019 01:59:59 -0800 (PST) ARC-Seal: i=1; a=rsa-sha256; t=1547632799; cv=none; d=google.com; s=arc-20160816; b=nHmUJyHw2P0v6MgQlD0hR5S2iB+ctVOUOBnfVMdCyiEdtjknK2Hum2I9QyTpCHElM3 M9LcQupMF8BKTVdqkymlo/WMVxgrN3XOTAIKCoMbjLLwow9fXD2e5gLeUtdjlBKth+BH R89fDgn7CSz4hJyp+h5PEnL7C6K3Ckrw2FpMc94uLJvcuvScIcLPKC4RdLwnFUdE+LMQ Wt897ZQMBBhTArd0YfImZdV1TJ1T2UAiHsdQKngaxs8WWENrRAUg3FBABEThXUfGyaMr f7Yao+F6wGZJVTaUg10NaJZfU3Av+8ZGkDkcwZwwuu36TGFnCEbGhOtvVl25Y1l7evax 6fRA== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:sender:mime-version:content-transfer-encoding :content-id:spamdiagnosticmetadata:spamdiagnosticoutput:user-agent :content-language:accept-language:in-reply-to:references:message-id :date:thread-index:thread-topic:subject:cc:to:from:dkim-signature; bh=CYIHVzOR0Sqrw5I44vPkS27UuFfQgE9rdE2ylOeNKIs=; b=o4Ypm7pniEAdIu3abkMiKQqCMujFjCuO5zjqx5wo0ivJScfeTwoF0j5GutR+akTH6Y otJW0/AhhZ56HCZvBhADNYzEHr+vfBVfsskJToTH1p56kHGs2WhbDbSq7QOPylqoHsx8 1aiexWYHG44vQk8BpFLYHajVT2MmClY4jeKzQ1+vw05dRuulftqWBcDNz/meu0KfKjb6 wnQz4HOnV16xfGDz+EHpPXGUPz9QeovYsE3/qB7ipqu8ztSsNXw7SKLh0GPb2cXvBzJg 6MFUl0nSTrnNy/Dwtu3kGEVtFM18eCwWiH8PTAJVjiHBS3gu7JhudIbFBeEOMiLqblsv 0WpQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@amdcloud.onmicrosoft.com header.s=selector1-amd-com header.b=X4v+p8Jz; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Return-Path: Received: from vger.kernel.org (vger.kernel.org. [209.132.180.67]) by mx.google.com with ESMTP id 9si6126762plc.40.2019.01.16.01.59.41; Wed, 16 Jan 2019 01:59:59 -0800 (PST) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; dkim=pass header.i=@amdcloud.onmicrosoft.com header.s=selector1-amd-com header.b=X4v+p8Jz; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2389270AbfAOTNS (ORCPT + 99 others); Tue, 15 Jan 2019 14:13:18 -0500 Received: from mail-eopbgr800075.outbound.protection.outlook.com ([40.107.80.75]:19328 "EHLO NAM03-DM3-obe.outbound.protection.outlook.com" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1729921AbfAOTNS (ORCPT ); Tue, 15 Jan 2019 14:13:18 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=amdcloud.onmicrosoft.com; s=selector1-amd-com; h=From:Date:Subject:Message-ID:Content-Type:MIME-Version:X-MS-Exchange-SenderADCheck; bh=CYIHVzOR0Sqrw5I44vPkS27UuFfQgE9rdE2ylOeNKIs=; b=X4v+p8JzgvJBSMFNLwxfo5yXtXo85RgtUBHnhxUkd51jCErAZT7gt684xoaR83hW4lbhTlXHJOSaqUXRLDqs3biAnukaA+Sf6rf5eHJmLrOe+I0RpdDNPsGP3mOoKipVXxnrjJcZCvXw4PVOejmp/+/WiyAF308FD2ri1zkWCwQ= Received: from BN6PR12MB1714.namprd12.prod.outlook.com (10.175.101.11) by BN6PR12MB1731.namprd12.prod.outlook.com (10.175.101.16) with Microsoft SMTP Server (version=TLS1_2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id 15.20.1516.18; Tue, 15 Jan 2019 19:13:11 +0000 Received: from BN6PR12MB1714.namprd12.prod.outlook.com ([fe80::1c01:3bbc:5ef1:4090]) by BN6PR12MB1714.namprd12.prod.outlook.com ([fe80::1c01:3bbc:5ef1:4090%11]) with mapi id 15.20.1516.019; Tue, 15 Jan 2019 19:13:11 +0000 From: "Koenig, Christian" To: "hch@lst.de" , Thomas Hellstrom CC: "linux-kernel@vger.kernel.org" , "yong.zhi@intel.com" , "daniel.vetter@ffwll.ch" , "linux-rdma@vger.kernel.org" , "linux-media@vger.kernel.org" , "bingbu.cao@intel.com" , "jian.xu.zheng@intel.com" , "tian.shu.qiu@intel.com" , "shiraz.saleem@intel.com" , "sakari.ailus@linux.intel.com" , "dri-devel@lists.freedesktop.org" , "jgg@ziepe.ca" Subject: Re: [PATCH] lib/scatterlist: Provide a DMA page iterator Thread-Topic: [PATCH] lib/scatterlist: Provide a DMA page iterator Thread-Index: AQHUrOXdj04wr1dVGkWvqY6Mg4pf06Wwn32AgAAHy4CAAAuYgA== Date: Tue, 15 Jan 2019 19:13:11 +0000 Message-ID: References: <20190104223531.GA1705@ziepe.ca> <20190110234218.GM6890@ziepe.ca> <20190114094856.GB29604@lst.de> <1fb20ab4b171b281e9994b6c55734c120958530b.camel@vmware.com> <2b440a3b-ed2f-8fd6-a21e-97ca0b2f5db9@gmail.com> <20190115152029.GB2325@lst.de> <41d0616e95fb48942404fb54d82249f5700affb1.camel@vmware.com> <20190115183133.GA12350@lst.de> In-Reply-To: <20190115183133.GA12350@lst.de> Accept-Language: de-DE, en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: user-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.2.1 x-originating-ip: [2a02:908:1252:fb60:be8a:bd56:1f94:86e7] x-clientproxiedby: AM5PR0202CA0003.eurprd02.prod.outlook.com (2603:10a6:203:69::13) To BN6PR12MB1714.namprd12.prod.outlook.com (2603:10b6:404:106::11) x-ms-exchange-messagesentrepresentingtype: 1 x-ms-publictraffictype: Email x-microsoft-exchange-diagnostics: 1;BN6PR12MB1731;20:8JoEZaK5rOjTjGvWn0/jNsdeUr3o4QK8F7wUCGuvFLXrjOEomIxmuPK8GI3wIAYYAE64KxYndHCmoUKGnqbZwp+Jx+5Ewm7kFugkhC5QmHROjy0pqG6Lw9u6dG5dDazMpMD0cMpE1ZpDxq4VnkqvLh27+3j5D4horuvWePvq0ZTx5p9Xq5rWD9BqQmGApAMsFtWgAhAWZM9AduSYSEiUTiGn7nKm3SfiX3FvzX8mcf2xuIqg0rP2PBAGj/xaZ0Lp x-ms-office365-filtering-correlation-id: ffc98a4a-9b0e-4df9-ec7c-08d67b1d7d7b x-ms-office365-filtering-ht: Tenant x-microsoft-antispam: BCL:0;PCL:0;RULEID:(2390118)(7020095)(4652040)(8989299)(4534185)(4627221)(201703031133081)(201702281549075)(8990200)(5600109)(711020)(4618075)(2017052603328)(7153060)(7193020);SRVR:BN6PR12MB1731; x-ms-traffictypediagnostic: BN6PR12MB1731: authentication-results: spf=none (sender IP is ) smtp.mailfrom=Christian.Koenig@amd.com; x-microsoft-antispam-prvs: x-forefront-prvs: 0918748D70 x-forefront-antispam-report: SFV:NSPM;SFS:(10009020)(346002)(39860400002)(136003)(376002)(366004)(396003)(189003)(199004)(43544003)(6486002)(6116002)(386003)(6506007)(36756003)(72206003)(64126003)(14454004)(478600001)(52116002)(76176011)(68736007)(2906002)(229853002)(31686004)(106356001)(105586002)(102836004)(25786009)(31696002)(4326008)(86362001)(486006)(65826007)(99286004)(6436002)(7416002)(5660300001)(53936002)(186003)(6512007)(476003)(2616005)(11346002)(446003)(81166006)(81156014)(7736002)(46003)(97736004)(305945005)(8676002)(65956001)(65806001)(8936002)(54906003)(110136005)(256004)(71200400001)(6246003)(58126008)(71190400001)(2501003)(93886005)(316002);DIR:OUT;SFP:1101;SCL:1;SRVR:BN6PR12MB1731;H:BN6PR12MB1714.namprd12.prod.outlook.com;FPR:;SPF:None;LANG:en;PTR:InfoNoRecords;MX:1;A:1; received-spf: None (protection.outlook.com: amd.com does not designate permitted sender hosts) x-ms-exchange-senderadcheck: 1 x-microsoft-antispam-message-info: pzm4Y//mPX3OWRrzHs404z2Ff37ZSja+DPbLCU3Ukbd5XcGA/ZRf7iLYgVi3d27m39SwtmvSRP9m+bCMakvps4s0D7+uttaZKv1hhhoBrpmbgk8h2ycB88iVsa2m8+OGt14pDlKIyplRhERHEsZUElTZwOB0vuqRQzvWr3Ktl/OeCn4h2ojEWiEc6aWNZYTppm9qvdiEoYkZCqwzzwdknuJSixzND1emGoyJyQZWpwUTqg2sRNslwdRVXCbBtJD7PwRC1sHevEWPTkq5RaPPLtPEW4yaHoNTin0vvwKTqMwoY3/rpxpkAb/bxY3TZvml5wf/hX4fV+h+ywL0IsZClX32GCqLyHja1S7JiCESDC+2UJEbfYjR52QQ4tOK2Xn1nbq6zIT0uGU6hJaXYYDo5PongBkdj2kXXO7P+Nuqufc= spamdiagnosticoutput: 1:99 spamdiagnosticmetadata: NSPM Content-Type: text/plain; charset="utf-8" Content-ID: <01DFD43BFF2D1B4DB471E42D38BF959C@namprd12.prod.outlook.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 X-OriginatorOrg: amd.com X-MS-Exchange-CrossTenant-Network-Message-Id: ffc98a4a-9b0e-4df9-ec7c-08d67b1d7d7b X-MS-Exchange-CrossTenant-originalarrivaltime: 15 Jan 2019 19:13:08.6746 (UTC) X-MS-Exchange-CrossTenant-fromentityheader: Hosted X-MS-Exchange-CrossTenant-id: 3dd8961f-e488-4e60-8e11-a82d994e183d X-MS-Exchange-Transport-CrossTenantHeadersStamped: BN6PR12MB1731 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org QW0gMTUuMDEuMTkgdW0gMTk6MzEgc2NocmllYiBoY2hAbHN0LmRlOg0KPiBPbiBUdWUsIEphbiAx NSwgMjAxOSBhdCAwNjowMzozOVBNICswMDAwLCBUaG9tYXMgSGVsbHN0cm9tIHdyb3RlOg0KPj4g SW4gdGhlIGdyYXBoaWNzIGNhc2UsIGl0J3MgcHJvYmFibHkgYmVjYXVzZSBpdCBkb2Vzbid0IGZp dCB0aGUgZ3JhcGhpY3MNCj4+IHVzZS1jYXNlczoNCj4+DQo+PiAxKSBNZW1vcnkgdHlwaWNhbGx5 IG5lZWRzIHRvIGJlIG1hcHBhYmxlIGJ5IGFub3RoZXIgZGV2aWNlLiAodGhlICJkbWEtDQo+PiBi dWYiIGludGVyZmFjZSkNCj4gQW5kIHRoZXJlIGlzIG5vdGhpbmcgcHJldmVudGluZyBkbWEtYnVm IHNoYXJpbmcgb2YgdGhlc2UgYnVmZmVycy4NCj4gVW5saWtlIHRoZSBnZXRfc2d0YWJsZSBtZXNz IGl0IGNhbiBhY3R1YWxseSB3b3JrIHJlbGlhYmx5IG9uDQo+IGFyY2hpdGVjdHVyZXMgdGhhdCBo YXZlIHZpcnR1YWxseSB0YWdnZWQgY2FjaGVzIGFuZC9vciBkb24ndA0KPiBndWFyYW50ZWUgY2Fj aGUgY29oZXJlbmN5IHdpdGggbWl4ZWQgYXR0cmlidXRlIG1hcHBpbmdzLg0KPg0KPj4gMikgRE1B IGJ1ZmZlcnMgYXJlIGV4cG9ydGVkIHRvIHVzZXItc3BhY2UgYW5kIGlzIHN1Yi1hbGxvY2F0ZWQg YnkgaXQuDQo+PiBNb3N0bHkgdGhlcmUgYXJlIG5vIEdQVSB1c2VyLXNwYWNlIGtlcm5lbCBpbnRl cmZhY2VzIHRvIHN5bmMgLyBmbHVzaA0KPj4gc3VicmVnaW9ucyBhbmQgdGhlc2Ugc3luY3MgbWF5 IGhhcHBlbiBvbiBhIHNtYWxsZXItdGhhbi1jYWNoZS1saW5lDQo+PiBncmFudWxhcml0eS4NCj4g SSBrbm93IG9mIG5vIGFyY2hpdGVjdHVyZXMgdGhhdCBjYW4gZG8gY2FjaGUgbWFpbnRhaW5hbmNl IG9uIGEgbGVzcw0KPiB0aGFuIGNhY2hlIGxpbmUgYmFzaXMuICBFaXRoZXIgdGhlIGluc3RydWN0 aW9ucyByZXF1aXJlIHlvdSB0bw0KPiBzcGVjaWZjeSBjYWNoZSBsaW5lcywgb3IgdGhleSBkbyBz b21ldGltZXMgbW9yZSwgc29tZXRpbWVzIGxlc3MNCj4gaW50ZWxsaWdlbnQgcm91bmRpbmcgdXAu DQo+DQo+IE5vdGUgdGhhdCBhcyBsb25nIGRtYSBub24tY29oZXJlbnQgYnVmZmVycyBhcmUgZGV2 aWNlcyBvd25lZCBpdA0KPiBpcyB1cCB0byB0aGUgZGV2aWNlIGFuZCB0aGUgdXNlciBzcGFjZSBk cml2ZXIgdG8gdGFrZSBjYXJlIG9mDQo+IGNvaGVyZW5jeSwgdGhlIGtlcm5lbCB2ZXJ5IG11Y2gg aXMgb3V0IG9mIHRoZSBwaWN0dXJlLg0KDQpUaG9tYXMgaXMgY29ycmVjdCB0aGF0IHRoZSBpbnRl cmZhY2UgeW91IHByb3Bvc2UgaGVyZSBkb2Vzbid0IHdvcmsgYXQgDQphbGwgZm9yIEdQVXMuDQoN ClRoZSBrZXJuZWwgZHJpdmVyIGlzIG5vdCBpbmZvcm1lZCBvZiBmbHVzaC9zeW5jLCBidXQgcmF0 aGVyIGp1c3Qgc2V0dXBzIA0KY29oZXJlbnQgbWFwcGluZ3MgYmV0d2VlbiBzeXN0ZW0gbWVtb3J5 IGFuZCBkZXZpY2VzLg0KDQpJbiBvdGhlciB3b3JkcyB5b3UgaGF2ZSBhbiBhcnJheSBvZiBzdHJ1 Y3QgcGFnZXMgYW5kIG5lZWQgdG8gbWFwIHRoYXQgdG8gDQphIHNwZWNpZmljIGRldmljZSBhbmQg c28gY3JlYXRlIGRtYV9hZGRyZXNzZXMgZm9yIHRoZSBtYXBwaW5ncy4NCg0KUmVnYXJkcywNCkNo cmlzdGlhbi4NCg==