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 Received: from smtp2.osuosl.org (smtp2.osuosl.org [140.211.166.133]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 6102CC433EF for ; Fri, 4 Mar 2022 15:54:06 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp2.osuosl.org (Postfix) with ESMTP id 0252540160; Fri, 4 Mar 2022 15:54:06 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Received: from smtp2.osuosl.org ([127.0.0.1]) by localhost (smtp2.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id JBNE3Qv_3N0x; Fri, 4 Mar 2022 15:54:05 +0000 (UTC) Received: from lists.linuxfoundation.org (lf-lists.osuosl.org [140.211.9.56]) by smtp2.osuosl.org (Postfix) with ESMTPS id 8A937400F2; Fri, 4 Mar 2022 15:54:04 +0000 (UTC) Received: from lf-lists.osuosl.org (localhost [127.0.0.1]) by lists.linuxfoundation.org (Postfix) with ESMTP id 42793C001D; Fri, 4 Mar 2022 15:54:04 +0000 (UTC) Received: from smtp1.osuosl.org (smtp1.osuosl.org [140.211.166.138]) by lists.linuxfoundation.org (Postfix) with ESMTP id 13449C000B for ; Fri, 4 Mar 2022 15:54:02 +0000 (UTC) Received: from localhost (localhost [127.0.0.1]) by smtp1.osuosl.org (Postfix) with ESMTP id 019F38417A for ; Fri, 4 Mar 2022 15:54:02 +0000 (UTC) X-Virus-Scanned: amavisd-new at osuosl.org Authentication-Results: smtp1.osuosl.org (amavisd-new); dkim=pass (2048-bit key) header.d=infradead.org Received: from smtp1.osuosl.org ([127.0.0.1]) by localhost (smtp1.osuosl.org [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id w0DqFelPDysx for ; Fri, 4 Mar 2022 15:54:00 +0000 (UTC) X-Greylist: from auto-whitelisted by SQLgrey-1.8.0 Received: from bombadil.infradead.org (bombadil.infradead.org [IPv6:2607:7c80:54:e::133]) by smtp1.osuosl.org (Postfix) with ESMTPS id 272DB84173 for ; Fri, 4 Mar 2022 15:53:59 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=bombadil.20210309; h=In-Reply-To:Content-Type:MIME-Version :References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=1+Qh0+uXxcAV1aciqUFtIAq+pnhtnrmQDTbORGN7Wvs=; b=3QQrs5rXY6WU70eO/f3dbib5GH 1Ws7kXHYxdcDcAalTNsFLK3BV1kg7uGIHGVnBQete1rgLW9fjlhnqalk9dOEL4JJa0MPBVJwlxqzO 3UzDYk4CkgReFuLQE8JMN3vTlaedMY+f+WSzSqWSZ/1kLzmW//fsbQMNve5dYzvrxDlWD93ocTpqy /Lxvj+suxpIpyo1DOLyDHSclHsL0ZMNHWETaraBuE18e/b2PKmCEN7emT3yeb64ie6gKiVNrFMUMf 6TrTwrsXmvRy2MIkLwTSE5ayJXIjKVEBRaSdpUnWkMLwKwI1fKfY2nj9SudJlPQrMAXuLdKcvtDZp Y2j0uk1Q==; Received: from hch by bombadil.infradead.org with local (Exim 4.94.2 #2 (Red Hat Linux)) id 1nQAFY-00As6b-1X; Fri, 04 Mar 2022 15:53:48 +0000 Date: Fri, 4 Mar 2022 07:53:48 -0800 From: Christoph Hellwig To: Halil Pasic Subject: Re: [PATCH 0/2] swiotlb: rework fix info leak with DMA_FROM_DEVICE Message-ID: References: <20220304135859.3521513-1-pasic@linux.ibm.com> MIME-Version: 1.0 Content-Disposition: inline In-Reply-To: <20220304135859.3521513-1-pasic@linux.ibm.com> X-SRS-Rewrite: SMTP reverse-path rewritten from by bombadil.infradead.org. See http://www.infradead.org/rpr.html Cc: Tom Lendacky , "Martin K. Petersen" , "Michael S. Tsirkin" , Linus Torvalds , "James E.J. Bottomley" , linux-doc@vger.kernel.org, stable@vger.kernel.org, Christoph Hellwig , Christian Borntraeger , iommu@lists.linux-foundation.org, Doug Gilbert , Anshuman Khandual , Robin Murphy , Thiago Jung Bauermann X-BeenThere: iommu@lists.linux-foundation.org X-Mailman-Version: 2.1.15 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="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: iommu-bounces@lists.linux-foundation.org Sender: "iommu" On Fri, Mar 04, 2022 at 02:58:57PM +0100, Halil Pasic wrote: > Unfortunately, we ended up with the wrong version of the patch "fix info > leak with DMA_FROM_DEVICE" getting merged. We got v4 merged, but the > version we want is v7 with some minor tweaks which were supposed to be > applied by Christoph (swiotlb maintainer). After pointing this out, I > was asked by Christoph to create an incremental fix. > > IMHO the cleanest way to do this is a reverting the incorrect version > of the patch and applying the correct one. I hope that qualifies as > an incremental fix. I'd really do one patch to move to the expected state. I'd volunteer to merge the two patches, but I've recently shown that I'm not exactly good at that.. _______________________________________________ iommu mailing list iommu@lists.linux-foundation.org https://lists.linuxfoundation.org/mailman/listinfo/iommu