[PATCH 1/2] virtio: fix net driver loop case where we fail to restart

[Rusty Russell]

skb is only NULL the first time around: it's more correct to test for
being under-budget.

Signed-off-by: Rusty Russell <[EMAIL PROTECTED]>

diff -r 2a94425ac7d5 drivers/net/virtio_net.c
--- a/drivers/net/virtio_net.c  Thu Nov 15 13:47:28 2007 +1100
+++ b/drivers/net/virtio_net.c  Thu Nov 15 23:10:44 2007 +1100
@@ -198,8 +198,8 @@ again:
        if (vi->num < vi->max / 2)
                try_fill_recv(vi);
 
-       /* All done? */
-       if (!skb) {
+       /* Out of packets? */
+       if (received < budget) {
                netif_rx_complete(vi->dev, napi);
                if (unlikely(!vi->rvq->vq_ops->restart(vi->rvq))
                    && netif_rx_reschedule(vi->dev, napi))
-
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