diff options
| author | Xuan Zhuo <xuanzhuo@linux.alibaba.com> | 2022-02-24 19:03:56 +0800 |
|---|---|---|
| committer | Michael S. Tsirkin <mst@redhat.com> | 2022-03-28 16:52:58 -0400 |
| commit | 920379a465da775ae0bf84d44c16f5432b5be575 (patch) | |
| tree | 9c466c8e7ceca74ba2d48496bbc5e8c9682b4185 /drivers/virtio | |
| parent | b4282ebc71aacfa69fc998173ca93b09235ce71f (diff) | |
| download | linux-920379a465da775ae0bf84d44c16f5432b5be575.tar.gz | |
virtio_ring: remove flags check for unmap packed indirect desc
When calling vring_unmap_desc_packed(), it will not encounter the
situation that the flags contains VRING_DESC_F_INDIRECT. So remove this
logic.
Signed-off-by: Xuan Zhuo <xuanzhuo@linux.alibaba.com>
Link: https://lore.kernel.org/r/20220224110402.108161-4-xuanzhuo@linux.alibaba.com
Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Diffstat (limited to 'drivers/virtio')
| -rw-r--r-- | drivers/virtio/virtio_ring.c | 18 |
1 files changed, 5 insertions, 13 deletions
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c index fadd0a7503e9e..cfb028ca238eb 100644 --- a/drivers/virtio/virtio_ring.c +++ b/drivers/virtio/virtio_ring.c @@ -1009,19 +1009,11 @@ static void vring_unmap_desc_packed(const struct vring_virtqueue *vq, flags = le16_to_cpu(desc->flags); - if (flags & VRING_DESC_F_INDIRECT) { - dma_unmap_single(vring_dma_dev(vq), - le64_to_cpu(desc->addr), - le32_to_cpu(desc->len), - (flags & VRING_DESC_F_WRITE) ? - DMA_FROM_DEVICE : DMA_TO_DEVICE); - } else { - dma_unmap_page(vring_dma_dev(vq), - le64_to_cpu(desc->addr), - le32_to_cpu(desc->len), - (flags & VRING_DESC_F_WRITE) ? - DMA_FROM_DEVICE : DMA_TO_DEVICE); - } + dma_unmap_page(vring_dma_dev(vq), + le64_to_cpu(desc->addr), + le32_to_cpu(desc->len), + (flags & VRING_DESC_F_WRITE) ? + DMA_FROM_DEVICE : DMA_TO_DEVICE); } static struct vring_packed_desc *alloc_indirect_packed(unsigned int total_sg, |