diff options
| author | Xuan Zhuo <xuanzhuo@linux.alibaba.com> | 2024-05-11 11:14:01 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-05-13 17:07:41 -0700 |
| commit | f9dac92ba9081062a6477ee015bd3b8c5914efc4 (patch) | |
| tree | 2c3d1f95db49c92d29566ebaafbb9a699a9e5239 /drivers/virtio | |
| parent | 6e62702feb6d474e969b52f0379de93e9729e457 (diff) | |
virtio_ring: enable premapped mode whatever use_dma_api
Now, we have virtio DMA APIs, the driver can be the premapped
mode whatever the virtio core uses dma api or not.
So remove the limit of checking use_dma_api from
virtqueue_set_dma_premapped().
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Acked-by: Jason Wang <jasowang@redhat.com>
Link: https://lore.kernel.org/r/20240511031404.30903-2-xuanzhuo@linux.alibaba.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 7 |
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; |