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fou: Do WARN_ON_ONCE in gue_gro_receive for bad proto callbacks

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Do WARN_ON_ONCE instead of WARN_ON in gue_gro_receive when the offload
callcaks are bad (either don't exist or gro_receive is not specified).

Signed-off-by: Tom Herbert <tom@herbertland.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tom Herbert 2015-08-19 17:07:34 -07:00 committed by David S. Miller
parent 58ce31cca1
commit 270136613b
1 changed files with 1 additions and 1 deletions
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2
net/ipv4/fou.c
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@ -347,7 +347,7 @@ static struct sk_buff **gue_gro_receive(struct sk_buff **head,
rcu_read_lock(); rcu_read_lock();
offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads; offloads = NAPI_GRO_CB(skb)->is_ipv6 ? inet6_offloads : inet_offloads;
ops = rcu_dereference(offloads[guehdr->proto_ctype]); ops = rcu_dereference(offloads[guehdr->proto_ctype]);
if (WARN_ON(!ops || !ops->callbacks.gro_receive)) if (WARN_ON_ONCE(!ops || !ops->callbacks.gro_receive))
goto out_unlock; goto out_unlock;
pp = ops->callbacks.gro_receive(head, skb); pp = ops->callbacks.gro_receive(head, skb);