Now, vring_map_one_sg() is only called by virtqueue_map_sgs().
And !use_dma_api is check before vring_map_one_sg(), so we not need to
check !use_dma_api inside vring_map_one_sg().
Signed-off-by: Xuan Zhuo <xuanzhuo@xxxxxxxxxxxxxxxxx>
---
drivers/virtio/virtio_ring.c | 10 ----------
1 file changed, 10 deletions(-)
diff --git a/drivers/virtio/virtio_ring.c b/drivers/virtio/virtio_ring.c
index c185354fcac6..eb207da13735 100644
--- a/drivers/virtio/virtio_ring.c
+++ b/drivers/virtio/virtio_ring.c
@@ -364,16 +364,6 @@ static dma_addr_t vring_map_one_sg(const struct vring_virtqueue *vq,
struct scatterlist *sg,
enum dma_data_direction direction)
{
- if (!vq->use_dma_api) {
- /*
- * If DMA is not used, KMSAN doesn't know that the scatterlist
- * is initialized by the hardware. Explicitly check/unpoison it
- * depending on the direction.
- */
- kmsan_handle_dma(sg_page(sg), sg->offset, sg->length, direction);
- return (dma_addr_t)sg_phys(sg);
- }
-
/*
* We can't use dma_map_sg, because we don't use scatterlists in
* the way it expects (we don't guarantee that the scatterlist
--
2.32.0.3.g01195cf9f
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