netdev - Re: [PATCH net-next 02/10] vxlan: handle skb

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Message-ID: <OF46C80482.502E42A2-ON85257B81.00466F0E-85257B81.004689F6@us.ibm.com>
Date:	Wed, 5 Jun 2013 08:50:29 -0400
From:	David Stevens <dlstevens@...ibm.com>
To:	Stephen Hemminger <stephen@...workplumber.org>
Cc:	davem@...emloft.net, netdev@...r.kernel.org,
	netdev-owner@...r.kernel.org,
	Stephen Hemminger <stephen@...workplumber.org>
Subject: Re: [PATCH net-next 02/10] vxlan: handle skb_clone failure

Acked-by: David L Stevens <dlstevens@...ibm.com>

> From: Stephen Hemminger <stephen@...workplumber.org>
 
> skb_clone can fail if out of memory. Just skip the fanout.
> 
> Signed-off-by: Stephen Hemminger <stephen@...workplumber.org>
> 
> ---
> Does not impact stable, this was introduced by the multiple
> destination code.
> ---
>  drivers/net/vxlan.c |    8 +++++---
>  1 file changed, 5 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/net/vxlan.c b/drivers/net/vxlan.c
> index 536082a..9085c81 100644
> --- a/drivers/net/vxlan.c
> +++ b/drivers/net/vxlan.c
> @@ -1197,9 +1197,11 @@ 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);
> -- 
> 1.7.10.4
> 
> --
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