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authorShan Wei <shanwei@cn.fujitsu.com>2010-02-11 00:12:45 +0000
committerDavid S. Miller <davem@davemloft.net>2010-02-15 21:49:49 -0800
commit9546377c42e12513b33925ab829d893dcf521c5f (patch)
treec025fb134016a1af53b601eacf51b37b89932048 /net/ipv6/reassembly.c
parent564517e804c9c6d4e29c270bfc1517404d27107b (diff)
downloadlinux-9546377c42e12513b33925ab829d893dcf521c5f.tar.gz
IPv6: Delete redundant counter of IPSTATS_MIB_REASMFAILS
When no more memory can be allocated, fq_find() will return NULL and
increase the value of IPSTATS_MIB_REASMFAILS. In this case,
ipv6_frag_rcv() also increase the value of IPSTATS_MIB_REASMFAILS.

So, the patch deletes redundant counter of IPSTATS_MIB_REASMFAILS in fq_find().
and deletes the unused parameter of idev.

Signed-off-by: Shan Wei <shanwei@cn.fujitsu.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv6/reassembly.c')
-rw-r--r--net/ipv6/reassembly.c13
1 files changed, 4 insertions, 9 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c
index fa38fc7cc6e9..fe27eb4264d6 100644
--- a/net/ipv6/reassembly.c
+++ b/net/ipv6/reassembly.c
@@ -237,8 +237,7 @@ out:
 }
 
 static __inline__ struct frag_queue *
-fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
-	struct inet6_dev *idev)
+fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst)
 {
 	struct inet_frag_queue *q;
 	struct ip6_create_arg arg;
@@ -254,13 +253,9 @@ fq_find(struct net *net, __be32 id, struct in6_addr *src, struct in6_addr *dst,
 
 	q = inet_frag_find(&net->ipv6.frags, &ip6_frags, &arg, hash);
 	if (q == NULL)
-		goto oom;
+		return NULL;
 
 	return container_of(q, struct frag_queue, q);
-
-oom:
-	IP6_INC_STATS_BH(net, idev, IPSTATS_MIB_REASMFAILS);
-	return NULL;
 }
 
 static int ip6_frag_queue(struct frag_queue *fq, struct sk_buff *skb,
@@ -606,8 +601,8 @@ static int ipv6_frag_rcv(struct sk_buff *skb)
 	if (atomic_read(&net->ipv6.frags.mem) > net->ipv6.frags.high_thresh)
 		ip6_evictor(net, ip6_dst_idev(skb_dst(skb)));
 
-	if ((fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr,
-			  ip6_dst_idev(skb_dst(skb)))) != NULL) {
+	fq = fq_find(net, fhdr->identification, &hdr->saddr, &hdr->daddr);
+	if (fq != NULL) {
 		int ret;
 
 		spin_lock(&fq->q.lock);