From: Frank Blaschka <frank.blaschka@xxxxxxxxxx>
commit 8a83a00b0735190384a348156837918271034144 unconditionally
drops dst reference when skb->dev is set. This causes a regression
with VLAN and the qeth_l3 network driver. qeth_l3 can not get gw
information from the skb coming from the vlan driver. It is only
valid to drop the dst in case of different name spaces.
Signed-off-by: Frank Blaschka <frank.blaschka@xxxxxxxxxx>
---
net/core/dev.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
--- a/net/core/dev.c
+++ b/net/core/dev.c
@@ -1881,8 +1881,8 @@ EXPORT_SYMBOL(netif_device_attach);
#ifdef CONFIG_NET_NS
void skb_set_dev(struct sk_buff *skb, struct net_device *dev)
{
- skb_dst_drop(skb);
if (skb->dev && !net_eq(dev_net(skb->dev), dev_net(dev))) {
+ skb_dst_drop(skb);
secpath_reset(skb);
nf_reset(skb);
skb_init_secmark(skb);
--
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