From 8981f01001c616f58f1623ecadfab8b1ed758da7 Mon Sep 17 00:00:00 2001
From: Herbert Xu <herbert@gondor.apana.org.au>
Date: Thu, 11 Jun 2009 20:55:17 -0700
Subject: [PATCH] virtio_net: Fix IP alignment on non-mergeable RX path
We need to enforce the IP alignment on the non-mergeable RX path just
like the other RX path. Not doing so results in misaligned IP
headers.
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: David S. Miller <davem@davemloft.net>
---
drivers/net/virtio_net.c | 3 ++-
1 file changed, 2 insertions(+), 1 deletion(-)
diff --git a/drivers/net/virtio_net.c b/drivers/net/virtio_net.c
index 09bd4410fa651..f0bb1a4c83238 100644
--- a/drivers/net/virtio_net.c
+++ b/drivers/net/virtio_net.c
@@ -283,10 +283,11 @@ static void try_fill_recv_maxbufs(struct virtnet_info *vi)
for (;;) {
struct virtio_net_hdr *hdr;
- skb = netdev_alloc_skb(vi->dev, MAX_PACKET_LEN);
+ skb = netdev_alloc_skb(vi->dev, MAX_PACKET_LEN + NET_IP_ALIGN);
if (unlikely(!skb))
break;
+ skb_reserve(skb, NET_IP_ALIGN);
skb_put(skb, MAX_PACKET_LEN);
hdr = skb_vnet_hdr(skb);
--
2.30.2