virtio: Use the sg_phys convenience function.
Simple cleanup. Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
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@ -99,16 +99,14 @@ static int vring_add_buf(struct virtqueue *_vq,
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head = vq->free_head;
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head = vq->free_head;
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for (i = vq->free_head; out; i = vq->vring.desc[i].next, out--) {
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for (i = vq->free_head; out; i = vq->vring.desc[i].next, out--) {
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vq->vring.desc[i].flags = VRING_DESC_F_NEXT;
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vq->vring.desc[i].flags = VRING_DESC_F_NEXT;
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vq->vring.desc[i].addr = (page_to_pfn(sg_page(sg))<<PAGE_SHIFT)
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vq->vring.desc[i].addr = sg_phys(sg);
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+ sg->offset;
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vq->vring.desc[i].len = sg->length;
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vq->vring.desc[i].len = sg->length;
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prev = i;
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prev = i;
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sg++;
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sg++;
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}
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}
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for (; in; i = vq->vring.desc[i].next, in--) {
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for (; in; i = vq->vring.desc[i].next, in--) {
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vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE;
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vq->vring.desc[i].flags = VRING_DESC_F_NEXT|VRING_DESC_F_WRITE;
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vq->vring.desc[i].addr = (page_to_pfn(sg_page(sg))<<PAGE_SHIFT)
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vq->vring.desc[i].addr = sg_phys(sg);
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+ sg->offset;
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vq->vring.desc[i].len = sg->length;
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vq->vring.desc[i].len = sg->length;
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prev = i;
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prev = i;
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sg++;
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sg++;
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