From mboxrd@z Thu Jan  1 00:00:00 1970
From: Christoph Hellwig <hch@lst.de>
Subject: [PATCH 4/4] drm/vmwgfx: unwind spaghetti code in vmw_dma_select_mode
Date: Sat,  5 Jan 2019 09:01:08 +0100
Message-ID: <20190105080108.14837-5-hch@lst.de>
References: <20190105080108.14837-1-hch@lst.de>
Mime-Version: 1.0
Content-Type: text/plain; charset="utf-8"
Content-Transfer-Encoding: base64
Return-path: <dri-devel-bounces@lists.freedesktop.org>
In-Reply-To: <20190105080108.14837-1-hch@lst.de>
List-Unsubscribe: <https://lists.freedesktop.org/mailman/options/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=unsubscribe>
List-Archive: <https://lists.freedesktop.org/archives/dri-devel>
List-Post: <mailto:dri-devel@lists.freedesktop.org>
List-Help: <mailto:dri-devel-request@lists.freedesktop.org?subject=help>
List-Subscribe: <https://lists.freedesktop.org/mailman/listinfo/dri-devel>,
 <mailto:dri-devel-request@lists.freedesktop.org?subject=subscribe>
Errors-To: dri-devel-bounces@lists.freedesktop.org
Sender: "dri-devel" <dri-devel-bounces@lists.freedesktop.org>
To: thellstrom@vmware.com
Cc: iommu@lists.linux-foundation.org, linux-graphics-maintainer@vmware.com, linux-kernel@vger.kernel.org, dri-devel@lists.freedesktop.org
List-Id: iommu@lists.linux-foundation.org
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