The >= compare op must happen in cpu byte order, doing it in little endian fails on big endian machines like s390.
Reported-by: Sebastian Mitterle smitterl@redhat.com Signed-off-by: Gerd Hoffmann kraxel@redhat.com --- drivers/gpu/drm/virtio/virtgpu_vq.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/drivers/gpu/drm/virtio/virtgpu_vq.c b/drivers/gpu/drm/virtio/virtgpu_vq.c index cfe9c54f87a3..67caecde623e 100644 --- a/drivers/gpu/drm/virtio/virtgpu_vq.c +++ b/drivers/gpu/drm/virtio/virtgpu_vq.c @@ -222,7 +222,7 @@ void virtio_gpu_dequeue_ctrl_func(struct work_struct *work) trace_virtio_gpu_cmd_response(vgdev->ctrlq.vq, resp);
if (resp->type != cpu_to_le32(VIRTIO_GPU_RESP_OK_NODATA)) { - if (resp->type >= cpu_to_le32(VIRTIO_GPU_RESP_ERR_UNSPEC)) { + if (le32_to_cpu(resp->type) >= VIRTIO_GPU_RESP_ERR_UNSPEC) { struct virtio_gpu_ctrl_hdr *cmd; cmd = virtio_gpu_vbuf_ctrl_hdr(entry); DRM_ERROR_RATELIMITED("response 0x%x (command 0x%x)\n",