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path: root/drivers/net/xen-netfront.c
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Diffstat (limited to 'drivers/net/xen-netfront.c')
-rw-r--r--drivers/net/xen-netfront.c4
1 files changed, 1 insertions, 3 deletions
diff --git a/drivers/net/xen-netfront.c b/drivers/net/xen-netfront.c
index f17f602e6171..c914c24f880b 100644
--- a/drivers/net/xen-netfront.c
+++ b/drivers/net/xen-netfront.c
@@ -337,8 +337,6 @@ static void xennet_alloc_rx_buffers(struct netfront_queue *queue)
return;
}
- wmb(); /* barrier so backend seens requests */
-
RING_PUSH_REQUESTS_AND_CHECK_NOTIFY(&queue->rx, notify);
if (notify)
notify_remote_via_irq(queue->rx_irq);
@@ -905,7 +903,7 @@ static RING_IDX xennet_fill_frags(struct netfront_queue *queue,
if (skb_shinfo(skb)->nr_frags == MAX_SKB_FRAGS) {
unsigned int pull_to = NETFRONT_SKB_CB(skb)->pull_to;
- BUG_ON(pull_to <= skb_headlen(skb));
+ BUG_ON(pull_to < skb_headlen(skb));
__pskb_pull_tail(skb, pull_to - skb_headlen(skb));
}
if (unlikely(skb_shinfo(skb)->nr_frags >= MAX_SKB_FRAGS)) {