On 2016年12月06日 23:40, Michael S. Tsirkin wrote:
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 <mst@xxxxxxxxxx>
---
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;
Reviewed-by: Jason Wang <jasowang@xxxxxxxxxx>
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