Minki/linux
1
0
Fork 1
mirror of https://github.com/torvalds/linux.git synced 2024-11-25 21:51:40 +00:00
Code Issues Packages Projects Releases Wiki Activity

virtio_ring: enable premapped mode whatever use_dma_api

Browse Source 
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>
This commit is contained in:
Xuan Zhuo 2024-05-11 11:14:01 +08:00 committed by Jakub Kicinski
parent 6e62702feb
commit f9dac92ba9
1 changed files with 1 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

7
drivers/virtio/virtio_ring.c
View File

@ -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;