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UPSTREAM: drm/virtio: log error responses

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If we got an error response code from the host, print it to the log.

Signed-off-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Oleksandr Andrushchenko <oleksandr_andrushchenko@epam.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20181219122708.4586-2-kraxel@redhat.com
(cherry picked from commit 3630c2a24f)
Signed-off-by: Greg Hartman <ghartman@google.com>
BUG: 139386237
Change-Id: I53e3c89cdf874e6cc0ea60ab6a619382d2c6ff23
This commit is contained in:
Gerd Hoffmann
2018-12-19 13:26:59 +01:00
committed by Alistair Delva
parent e8656dbe7a
commit fa3d9f0e0b
1 changed files with 10 additions and 2 deletions
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12
drivers/gpu/drm/virtio/virtgpu_vq.c
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@@ -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);