From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1753831AbcLFPk6 (ORCPT ); Tue, 6 Dec 2016 10:40:58 -0500 Received: from mail.kernel.org ([198.145.29.136]:33266 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753425AbcLFPkx (ORCPT ); Tue, 6 Dec 2016 10:40:53 -0500 Date: Tue, 6 Dec 2016 17:40:45 +0200 From: "Michael S. Tsirkin" To: linux-kernel@vger.kernel.org Cc: Jason Wang , David Airlie , Gerd Hoffmann , dri-devel@lists.freedesktop.org, virtualization@lists.linux-foundation.org Subject: [PATCH 04/10] drm/virtio: annotate virtio_gpu_queue_ctrl_buffer_locked Message-ID: <1481038106-24899-5-git-send-email-mst@redhat.com> References: <1481038106-24899-1-git-send-email-mst@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1481038106-24899-1-git-send-email-mst@redhat.com> X-Mailer: git-send-email 2.8.0.287.g0deeb61 X-Mutt-Fcc: =sent Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org virtio_gpu_queue_ctrl_buffer_locked is called with ctrlq.qlock taken, it releases and acquires this lock. This causes a sparse warning. Add appropriate annotations for sparse context checking. Signed-off-by: Michael S. Tsirkin --- drivers/gpu/drm/virtio/virtgpu_vq.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index 2f0c2f9..a6e2ce4 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -297,6 +297,8 @@ void virtio_gpu_dequeue_cursor_func(struct work_struct *work) static int virtio_gpu_queue_ctrl_buffer_locked(struct virtio_gpu_device *vgdev, struct virtio_gpu_vbuffer *vbuf) + __releases(&vgdev->ctrlq.qlock) + __acquires(&vgdev->ctrlq.qlock) { struct virtqueue *vq = vgdev->ctrlq.vq; struct scatterlist *sgs[3], vcmd, vout, vresp; -- MST