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=-5.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, INCLUDES_PATCH,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS,URIBL_BLOCKED, USER_AGENT_SANE_2 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 B9B2FC32751 for ; Tue, 6 Aug 2019 12:21:02 +0000 (UTC) Received: from mail.linuxfoundation.org (mail.linuxfoundation.org [140.211.169.12]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by mail.kernel.org (Postfix) with ESMTPS id 955B320C01 for ; Tue, 6 Aug 2019 12:21:02 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 955B320C01 Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=pengutronix.de Authentication-Results: mail.kernel.org; spf=pass smtp.mailfrom=iommu-bounces@lists.linux-foundation.org Received: from mail.linux-foundation.org (localhost [127.0.0.1]) by mail.linuxfoundation.org (Postfix) with ESMTP id 5FA8BDC1; Tue, 6 Aug 2019 12:21:02 +0000 (UTC) Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 508B5DBC for ; Tue, 6 Aug 2019 12:21:00 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.7.6 Received: from metis.ext.pengutronix.de (metis.ext.pengutronix.de [85.220.165.71]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id A884582D for ; Tue, 6 Aug 2019 12:20:59 +0000 (UTC) Received: from kresse.hi.pengutronix.de ([2001:67c:670:100:1d::2a]) by metis.ext.pengutronix.de with esmtp (Exim 4.92) (envelope-from ) id 1huySY-0006uH-1d; Tue, 06 Aug 2019 14:20:58 +0200 Message-ID: <1565094057.2323.28.camel@pengutronix.de> Subject: Re: Regression due to d98849aff879 (dma-direct: handle DMA_ATTR_NO_KERNEL_MAPPING in common code) From: Lucas Stach To: Christoph Hellwig Date: Tue, 06 Aug 2019 14:20:57 +0200 In-Reply-To: <20190806113318.GA20215@lst.de> References: <1565082809.2323.24.camel@pengutronix.de> <20190806113318.GA20215@lst.de> X-Mailer: Evolution 3.22.6-1+deb9u2 Mime-Version: 1.0 X-SA-Exim-Connect-IP: 2001:67c:670:100:1d::2a X-SA-Exim-Mail-From: l.stach@pengutronix.de X-SA-Exim-Scanned: No (on metis.ext.pengutronix.de); SAEximRunCond expanded to false X-PTX-Original-Recipient: iommu@lists.linux-foundation.org Cc: Tom Lendacky , iommu@lists.linux-foundation.org, linux-kernel@vger.kernel.org X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Development issues for Linux IOMMU support List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: base64 Sender: iommu-bounces@lists.linux-foundation.org Errors-To: iommu-bounces@lists.linux-foundation.org QW0gRGllbnN0YWcsIGRlbiAwNi4wOC4yMDE5LCAxMzozMyArMDIwMCBzY2hyaWViIENocmlzdG9w aCBIZWxsd2lnOgo+IE9uIFR1ZSwgQXVnIDA2LCAyMDE5IGF0IDExOjEzOjI5QU0gKzAyMDAsIEx1 Y2FzIFN0YWNoIHdyb3RlOgo+ID4gSGkgQ2hyaXN0b3BoLAo+ID4gCj4gPiBJIGp1c3QgZm91bmQg YSByZWdyZXNzaW9uIHdoZXJlIG15IE5WTWUgZGV2aWNlIGlzIG5vIGxvbmdlciBhYmxlIHRvCj4g PiBzZXQKPiA+IHVwIGl0cyBITUIuCj4gPiAKPiA+IEFmdGVyIHN1YmplY3QgY29tbWl0IGRtYV9k aXJlY3RfYWxsb2NfcGFnZXMoKSBpcyBubyBsb25nZXIKPiA+IGluaXRpYWxpemluZwo+ID4gZG1h X2hhbmRsZSBwcm9wZXJseSB3aGVuIERNQV9BVFRSX05PX0tFUk5FTF9NQVBQSU5HIGlzIHNldCwg YXMgdGhlCj4gPiBmdW5jdGlvbiBpcyBub3cgcmV0dXJuaW5nIHRvbyBlYXJseS4KPiA+IAo+ID4g Tm93IHRoaXMgY291bGQgZWFzaWx5IGJlIGZpeGVkIGJ5IGFkZGluZyB0aGUgcGh5X3RvX2RtYSB0 cmFuc2xhdGlvbgo+ID4gdG8KPiA+IHRoZSBOT19LRVJORUxfTUFQUElORyBjb2RlIHBhdGgsIGJ1 dCBJJ20gbm90IHN1cmUgaG93IHRoaXMgc3R1ZmYKPiA+IGludGVyYWN0cyB3aXRoIHRoZSBtZW1v cnkgZW5jcnlwdGlvbiBzdHVmZiBzZXQgdXAgbGF0ZXIgaW4gdGhlCj4gPiBmdW5jdGlvbiwgc28g SSBndWVzcyB0aGlzIHNob3VsZCBiZSBsb29rZWQgYXQgYnkgc29tZW9uZSB3aXRoIG1vcmUKPiA+ IGV4cGVyaWVuY2Ugd2l0aCB0aGlzIGNvZGUgdGhhbiBtZS4KPiAKPiBUaGVyZSBpcyBub3QgbXVj aCB3ZSBjYW4gZG8gYWJvdXQgdGhlIG1lbW9yeSBlbmNyeXB0aW9uIGNhc2UgaGVyZSwKCldoaWNo IEkgd291bGQgZ3Vlc3MgbWVhbnMgd2UgbmVlZCB0byBpZ25vcmUgRE1BX0FUVFJfTk9fS0VSTkVM X01BUFBJTkcKaW4gdGhhdCBjYXNlIGluc3RlYWQgb2YgZHJvcHBpbmcgb3V0IGVhcmx5PwoKPiBh cyB0aGF0IHJlcXVpcmVzIGEga2VybmVsIGFkZHJlc3MgdG8gbWFyayB0aGUgbWVtb3J5IGFzIHVu ZW5jcnlwdGVkLgo+IAo+IFNvIHRoZSBvYnZpb3VzIHRyaXZpYWwgZml4IGlzIHByb2JhYmx5IHRo ZSByaWdodCBvbmU6Cj4gCj4gCj4gZGlmZiAtLWdpdCBhL2tlcm5lbC9kbWEvZGlyZWN0LmMgYi9r ZXJuZWwvZG1hL2RpcmVjdC5jCj4gaW5kZXggNTliZGNlZWEzNzM3Li5jNDkxMjAxOTMzMDkgMTAw NjQ0Cj4gLS0tIGEva2VybmVsL2RtYS9kaXJlY3QuYwo+ICsrKyBiL2tlcm5lbC9kbWEvZGlyZWN0 LmMKPiBAQCAtMTM1LDYgKzEzNSw3IEBAIHZvaWQgKmRtYV9kaXJlY3RfYWxsb2NfcGFnZXMoc3Ry dWN0IGRldmljZSAqZGV2LAo+IHNpemVfdCBzaXplLAo+IMKgCQlpZiAoIVBhZ2VIaWdoTWVtKHBh Z2UpKQo+IMKgCQkJYXJjaF9kbWFfcHJlcF9jb2hlcmVudChwYWdlLCBzaXplKTsKPiDCoAkJLyog cmV0dXJuIHRoZSBwYWdlIHBvaW50ZXIgYXMgdGhlIG9wYXF1ZSBjb29raWUgKi8KPiArCQkqZG1h X2hhbmRsZSA9IHBoeXNfdG9fZG1hKGRldiwgcGFnZV90b19waHlzKHBhZ2UpKTsKPiDCoAkJcmV0 dXJuIHBhZ2U7Cj4gwqAJfQo+IMKgCl9fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19fX19f X19fX19fX19fX19fCmlvbW11IG1haWxpbmcgbGlzdAppb21tdUBsaXN0cy5saW51eC1mb3VuZGF0 aW9uLm9yZwpodHRwczovL2xpc3RzLmxpbnV4Zm91bmRhdGlvbi5vcmcvbWFpbG1hbi9saXN0aW5m by9pb21tdQ==