Commit 15f9c890 authored by Rusty Russell's avatar Rusty Russell
Browse files

virtio: Use the sg_phys convenience function. 



Simple cleanup.

Signed-off-by: default avatarRusty Russell <rusty@rustcorp.com.au>
parent 0ad07ec1

drivers/virtio/virtio_ring.c

+2 −4
Original line number Diff line number Diff line
@@ -99,16 +99,14 @@ static int vring_add_buf(struct virtqueue *_vq, 
	head = vq->free_head;

	for (i = vq->free_head; out; i = vq->vring.desc[i].next, out--) {

		vq->vring.desc[i].flags = VRING_DESC_F_NEXT;

		vq->vring.desc[i].addr = (page_to_pfn(sg_page(sg))<<PAGE_SHIFT)

			+ sg->offset;

		vq->vring.desc[i].addr = sg_phys(sg);

		vq->vring.desc[i].len = sg->length;

		prev = i;

		sg++;

	}

	for (; in; i = vq->vring.desc[i].next, in--) {

		vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE;

		vq->vring.desc[i].addr = (page_to_pfn(sg_page(sg))<<PAGE_SHIFT)

			+ sg->offset;

		vq->vring.desc[i].addr = sg_phys(sg);

		vq->vring.desc[i].len = sg->length;

		prev = i;

		sg++;