linux-kernel - [PATCH 2/6] virtio: fix tx_ stats in virtio

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Date:	Wed, 23 Apr 2008 23:56:07 -0500
From:	Rusty Russell <rusty@...tcorp.com.au>
To:	linux-kernel@...r.kernel.org
Cc:	virtualization@...ts.linux-foundation.org, netdev@...r.kernel.org
Subject: [PATCH 2/6] virtio: fix tx_ stats in virtio_net


get_buf() gives the length written by the other side, which will be
zero.  We want to add the skb length.

Signed-off-by: Rusty Russell <rusty@...tcorp.com.au>
---
 drivers/net/virtio_net.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff -r 51bdbdc4f199 drivers/net/virtio_net.c
--- a/drivers/net/virtio_net.c	Thu Apr 10 15:55:52 2008 +1000
+++ b/drivers/net/virtio_net.c	Mon Apr 14 11:13:45 2008 +1000
@@ -221,7 +221,7 @@ static void free_old_xmit_skbs(struct vi
 	while ((skb = vi->svq->vq_ops->get_buf(vi->svq, &len)) != NULL) {
 		pr_debug("Sent skb %p\n", skb);
 		__skb_unlink(skb, &vi->send);
-		vi->dev->stats.tx_bytes += len;
+		vi->dev->stats.tx_bytes += skb->len;
 		vi->dev->stats.tx_packets++;
 		kfree_skb(skb);
 	}

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