netdev - Re: [PATCH v3 net-next] ipmr: change the prototype of ip_mr

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Date:	Sat, 20 Jul 2013 22:25:21 +0200
From:	Nicolas Dichtel <nicolas.dichtel@...nd.com>
To:	Rami Rosen <ramirose@...il.com>, davem@...emloft.net
CC:	netdev@...r.kernel.org
Subject: Re: [PATCH v3 net-next] ipmr: change the prototype of ip_mr_forward().

Sorry for the disclaimer in the previous email. I forget to remove it.
Please, ignore it.


Thank you,
Nicolas

Le 20/07/2013 22:21, Nicolas Dichtel a écrit :
> Le 20/07/2013 14:09, Rami Rosen a écrit :
>> This patch changes the prototpye of the ip_mr_forward() method to return void
>> instead of int.
>>
>> The ip_mr_forward() method always returns 0; moreover, the return value of this
>> method is not checked anywhere.
>>
>> Signed-off-by: Rami Rosen <ramirose@...il.com>
> Acked-by: Nicolas Dichtel <nicolas.dichtel@...nd.com>
>
>> ---
>>   net/ipv4/ipmr.c | 15 +++++++--------
>>   1 file changed, 7 insertions(+), 8 deletions(-)
>>
>> diff --git a/net/ipv4/ipmr.c b/net/ipv4/ipmr.c
>> index 132a096..bacc0bc 100644
>> --- a/net/ipv4/ipmr.c
>> +++ b/net/ipv4/ipmr.c
>> @@ -127,9 +127,9 @@ static struct kmem_cache *mrt_cachep __read_mostly;
>>   static struct mr_table *ipmr_new_table(struct net *net, u32 id);
>>   static void ipmr_free_table(struct mr_table *mrt);
>>
>> -static int ip_mr_forward(struct net *net, struct mr_table *mrt,
>> -             struct sk_buff *skb, struct mfc_cache *cache,
>> -             int local);
>> +static void ip_mr_forward(struct net *net, struct mr_table *mrt,
>> +              struct sk_buff *skb, struct mfc_cache *cache,
>> +              int local);
>>   static int ipmr_cache_report(struct mr_table *mrt,
>>                    struct sk_buff *pkt, vifi_t vifi, int assert);
>>   static int __ipmr_fill_mroute(struct mr_table *mrt, struct sk_buff *skb,
>> @@ -1795,9 +1795,9 @@ static int ipmr_find_vif(struct mr_table *mrt, struct
>> net_device *dev)
>>
>>   /* "local" means that we should preserve one skb (for local delivery) */
>>
>> -static int ip_mr_forward(struct net *net, struct mr_table *mrt,
>> -             struct sk_buff *skb, struct mfc_cache *cache,
>> -             int local)
>> +static void ip_mr_forward(struct net *net, struct mr_table *mrt,
>> +              struct sk_buff *skb, struct mfc_cache *cache,
>> +              int local)
>>   {
>>       int psend = -1;
>>       int vif, ct;
>> @@ -1903,14 +1903,13 @@ last_forward:
>>                   ipmr_queue_xmit(net, mrt, skb2, cache, psend);
>>           } else {
>>               ipmr_queue_xmit(net, mrt, skb, cache, psend);
>> -            return 0;
>> +            return;
>>           }
>>       }
>>
>>   dont_forward:
>>       if (!local)
>>           kfree_skb(skb);
>> -    return 0;
>>   }
>>
>>   static struct mr_table *ipmr_rt_fib_lookup(struct net *net, struct sk_buff
>> *skb)
>>
>
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