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[209.132.180.67]) by mx.google.com with ESMTP id a8si18422747pgi.359.2018.12.20.08.20.25; Thu, 20 Dec 2018 08:20:43 -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=@synopsys.com header.s=mail header.b=S6haeK9B; 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; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=synopsys.com Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2387656AbeLTOjZ (ORCPT + 99 others); Thu, 20 Dec 2018 09:39:25 -0500 Received: from us01smtprelay-2.synopsys.com ([198.182.47.9]:53220 "EHLO smtprelay.synopsys.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1731737AbeLTOjY (ORCPT ); Thu, 20 Dec 2018 09:39:24 -0500 Received: from mailhost.synopsys.com (mailhost1.synopsys.com [10.12.238.239]) by smtprelay.synopsys.com (Postfix) with ESMTP id A271024E1024; Thu, 20 Dec 2018 06:39:23 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=synopsys.com; s=mail; t=1545316764; bh=PSaIbdm1pTweGDxdz0+CtGyfSqlmkKGLtd9gBB8k3Fk=; h=From:To:CC:Subject:Date:References:In-Reply-To:From; b=S6haeK9BYiMbEw8naQIUZmNOhPPKmH5WS/eK1XxivEPZoP4rXOLY8nLRtNBCN0CVB qxloqvHh037jtMwAn6lD2efJCAa62AS98VuxthH2r55ErL6i8+oGmmzOUz/iVMAdBH LOCPxa9yqpPpr6OwJsWIDxvt4EElx1xA2L33y1V0+XAVZvFCIHaqX8CtY8TWr3fc0Y +31RGWBvCJ0fsuug/p+K44LD0g9y+W741CC6TC4tQMR9wLLEPLevCWJ6PB0pYMywxs rE6h+/VlE9KZG4Maee6Y20I93akMYiYlwfDWdVL8POJ3m9/2TrbCSTBGki9hpv3PL9 LCQCnw9e5cSJw== Received: from US01WEHTC2.internal.synopsys.com (us01wehtc2-vip.internal.synopsys.com [10.12.239.238]) by mailhost.synopsys.com (Postfix) with ESMTP id 28F295031; Thu, 20 Dec 2018 06:39:23 -0800 (PST) Received: from DE02WEHTCA.internal.synopsys.com (10.225.19.92) by US01WEHTC2.internal.synopsys.com (10.12.239.237) with Microsoft SMTP Server (TLS) id 14.3.408.0; Thu, 20 Dec 2018 06:39:23 -0800 Received: from DE02WEMBXB.internal.synopsys.com ([fe80::95ce:118a:8321:a099]) by DE02WEHTCA.internal.synopsys.com ([::1]) with mapi id 14.03.0415.000; Thu, 20 Dec 2018 15:39:20 +0100 From: Eugeniy Paltsev To: "hch@lst.de" , "eugeniy.paltsev@synopsys.com" CC: "linux-kernel@vger.kernel.org" , "linux-s390@vger.kernel.org" , "linux-xtensa@linux-xtensa.org" , "linux-m68k@lists.linux-m68k.org" , "vineet.gupta1@synopsys.com" , "linux-alpha@vger.kernel.org" , "linux-snps-arc@lists.infradead.org" , "iommu@lists.linux-foundation.org" , "openrisc@lists.librecores.org" , "ashutosh.dixit@intel.com" , "linux-parisc@vger.kernel.org" , "linux-c6x-dev@linux-c6x.org" , "monstr@monstr.eu" , "sparclinux@vger.kernel.org" Subject: Re: ensure dma_alloc_coherent always returns zeroed memory Thread-Topic: ensure dma_alloc_coherent always returns zeroed memory Thread-Index: AQHUk4aSEUXLnU4haEedcBZA0NDmW6WGQKSAgAFpToCAAABngIAAAWqA Date: Thu, 20 Dec 2018 14:39:20 +0000 Message-ID: <1545316759.14089.22.camel@synopsys.com> References: <20181214082515.14835-1-hch@lst.de> <20181219165939.GA26087@lst.de> <1545316369.14089.20.camel@synopsys.com> <20181220143415.GA17726@lst.de> In-Reply-To: <20181220143415.GA17726@lst.de> Accept-Language: en-US Content-Language: en-US X-MS-Has-Attach: X-MS-TNEF-Correlator: x-originating-ip: [10.121.3.66] Content-Type: text/plain; charset="utf-8" Content-ID: <97A4157C2B777C4DAB00EFA080F46E4C@internal.synopsys.com> Content-Transfer-Encoding: base64 MIME-Version: 1.0 Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org T24gVGh1LCAyMDE4LTEyLTIwIGF0IDE1OjM0ICswMTAwLCBoY2hAbHN0LmRlIHdyb3RlOg0KPiBP biBUaHUsIERlYyAyMCwgMjAxOCBhdCAwMjozMjo1MlBNICswMDAwLCBFdWdlbml5IFBhbHRzZXYg d3JvdGU6DQo+ID4gSGkgQ2hyaXN0b3BoLA0KPiA+IA0KPiA+IEkgdGVzdCBrZXJuZWwgZnJvbSB5 b3VyICdkbWEtYWxsb2MtYWx3YXlzLXplcm8nIGJyYW5jaCwgYW5kIGFzDQo+ID4gSSBjYW4gc2Vl IHdlIGhhdmUgRE1BIHBlcmlwaGVyYWxzIChsaWtlIFVTQikgYnJva2VuLg0KPiANCj4gSSB3b3Vs ZCBiZSByZWFsbHkgc3VycHJpc2VkIGlmIHRoYXQgaXMgY2F1c2VkIGJ5IHRoZSBwYXRjaCB0byBh ZGQNCj4gdGhlIHplcm9pbmcuIA0KTWUgdG9vIDopDQoNCj4gIENhbiB5b3UgY2hlY2sgd2hpY2gg Y29tbWl0IGNhdXNlZCB0aGUgaXNzdWUgYnkgYmlzZWN0aW5nDQo+IGZyb20gYSBrbm93biBnb29k IGJhc2VsaW5lPw0KDQpZZXAuIEF0IGxlYXN0IGtlcm5lbCBidWlsZCBmcm9tIHY0LjIwLXJjNCAo d2hpY2ggaXMgYmFzZSBmb3IgeW91ciBicmFuY2gpDQpzZWVtcyB0byB3b3JrIGZpbmUuDQoNCi0t IA0KIEV1Z2VuaXkgUGFsdHNldg==