linux-kernel - [PATCH 09/16] virtio_net: use simplified virtqueue accessors.

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Message-Id: <1361260594-601-10-git-send-email-rusty@rustcorp.com.au>
Date:	Tue, 19 Feb 2013 18:26:27 +1030
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	Paolo Bonzini <pbonzini@...hat.com>
Cc:	Rusty Russell <rusty@...tcorp.com.au>, Asias He <asias@...hat.com>,
	"Michael S. Tsirkin" <mst@...hat.com>,
	linux-kernel@...r.kernel.org,
	virtualization@...ts.linux-foundation.org
Subject: [PATCH 09/16] virtio_net: use simplified virtqueue accessors.

We never add buffers with input and output parts, so use the new accessors.

Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
---
 drivers/net/virtio_net.c |   11 +++++------
 1 file changed, 5 insertions(+), 6 deletions(-)

diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index dbd5cd1..8ca69c0 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -443,7 +443,7 @@ static int add_recvbuf_small(struct receive_queue *rq, gfp_t gfp)
 
 	skb_to_sgvec(skb, rq->sg + 1, 0, skb->len);
 
-	err = virtqueue_add_buf(rq->vq, rq->sg, 0, 2, skb, gfp);
+	err = virtqueue_add_inbuf(rq->vq, rq->sg, 2, skb, gfp);
 	if (err < 0)
 		dev_kfree_skb(skb);
 
@@ -488,8 +488,8 @@ static int add_recvbuf_big(struct receive_queue *rq, gfp_t gfp)
 
 	/* chain first in list head */
 	first->private = (unsigned long)list;
-	err = virtqueue_add_buf(rq->vq, rq->sg, 0, MAX_SKB_FRAGS + 2,
-				first, gfp);
+	err = virtqueue_add_inbuf(rq->vq, rq->sg, MAX_SKB_FRAGS + 2,
+				  first, gfp);
 	if (err < 0)
 		give_pages(rq, first);
 
@@ -507,7 +507,7 @@ static int add_recvbuf_mergeable(struct receive_queue *rq, gfp_t gfp)
 
 	sg_init_one(rq->sg, page_address(page), PAGE_SIZE);
 
-	err = virtqueue_add_buf(rq->vq, rq->sg, 0, 1, page, gfp);
+	err = virtqueue_add_inbuf(rq->vq, rq->sg, 1, page, gfp);
 	if (err < 0)
 		give_pages(rq, page);
 
@@ -710,8 +710,7 @@ static int xmit_skb(struct send_queue *sq, struct sk_buff *skb)
 		sg_set_buf(sq->sg, &hdr->hdr, sizeof hdr->hdr);
 
 	num_sg = skb_to_sgvec(skb, sq->sg + 1, 0, skb->len) + 1;
-	return virtqueue_add_buf(sq->vq, sq->sg, num_sg,
-				 0, skb, GFP_ATOMIC);
+	return virtqueue_add_outbuf(sq->vq, sq->sg, num_sg, skb, GFP_ATOMIC);
 }
 
 static netdev_tx_t start_xmit(struct sk_buff *skb, struct net_device *dev)
-- 
1.7.10.4

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