On 12/19/18 2:26 PM, Gerd Hoffmann wrote:
If we got an error response code from the host, print it to the log.

Signed-off-by: Gerd Hoffmann <kra...@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushche...@epam.com>
---
  drivers/gpu/drm/virtio/virtgpu_vq.c | 12 ++++++++++--
  1 file changed, 10 insertions(+), 2 deletions(-)

diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c 
b/drivers/gpu/drm/virtio/virtgpu_vq.c
index e27c4aedb8..6bc2008b0d 100644
--- a/drivers/gpu/drm/virtio/virtgpu_vq.c
+++ b/drivers/gpu/drm/virtio/virtgpu_vq.c
@@ -192,8 +192,16 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work)
list_for_each_entry_safe(entry, tmp, &reclaim_list, list) {
                resp = (struct virtio_gpu_ctrl_hdr *)entry->resp_buf;
-               if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA))
-                       DRM_DEBUG("response 0x%x\n", le32_to_cpu(resp->type));
+               if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA)) {
+                       if (resp->type >= 
cpu_to_le32(VIRTIO_GPU_RESP_ERR_UNSPEC)) {
+                               struct virtio_gpu_ctrl_hdr *cmd;
+                               cmd = (struct virtio_gpu_ctrl_hdr *)entry->buf;
+                               DRM_ERROR("response 0x%x (command 0x%x)\n",
+                                         le32_to_cpu(resp->type),
+                                         le32_to_cpu(cmd->type));
+                       } else
+                               DRM_DEBUG("response 0x%x\n", 
le32_to_cpu(resp->type));
+               }
                if (resp->flags & cpu_to_le32(VIRTIO_GPU_FLAG_FENCE)) {
                        u64 f = le64_to_cpu(resp->fence_id);

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