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vxlan: handle skb_clone failure 

If skb_clone fails if out of memory then just skip the fanout.

Problem was introduced in 3.10 with:
  commit 6681712d67
  Author: David Stevens <dlstevens@us.ibm.com>
  Date:   Fri Mar 15 04:35:51 2013 +0000

    vxlan: generalize forwarding tables

Signed-off-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
hifive-unleashed-5.1
stephen hemminger 2013-06-17 12:09:59 -07:00 committed by David S. Miller
parent 26a41ae604
commit 7aa2723841
1 changed files with 5 additions and 3 deletions
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8
drivers/net/vxlan.c
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@ -1161,9 +1161,11 @@ static netdev_tx_t vxlan_xmit(struct sk_buff *skb, struct net_device *dev)
struct sk_buff *skb1;
skb1 = skb_clone(skb, GFP_ATOMIC);
rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
if (rc == NETDEV_TX_OK)
rc = rc1;
if (skb1) {
rc1 = vxlan_xmit_one(skb1, dev, rdst, did_rsc);
if (rc == NETDEV_TX_OK)
rc = rc1;
}
}
rc1 = vxlan_xmit_one(skb, dev, rdst0, did_rsc);