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-rw-r--r--drivers/virtio/virtio_ring.c7
1 files changed, 1 insertions, 6 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index 6f7e5010a673..2a972752ff1b 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -2782,7 +2782,7 @@ EXPORT_SYMBOL_GPL(virtqueue_resize);
*
* Returns zero or a negative error.
* 0: success.
- * -EINVAL: vring does not use the dma api, so we can not enable premapped mode.
+ * -EINVAL: too late to enable premapped mode, the vq already contains buffers.
*/
int virtqueue_set_dma_premapped(struct virtqueue *_vq)
{
@@ -2798,11 +2798,6 @@ int virtqueue_set_dma_premapped(struct virtqueue *_vq)
return -EINVAL;
}
- if (!vq->use_dma_api) {
- END_USE(vq);
- return -EINVAL;
- }
-
vq->premapped = true;
vq->do_unmap = false;