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author | Ingo Oeser <ioe-lkml@rameria.de> | 2006-03-21 07:01:17 (GMT) |
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committer | David S. Miller <davem@davemloft.net> | 2006-03-21 07:01:17 (GMT) |
commit | 78c784c47a2be593480cb6c69829a59f0504d575 (patch) | |
tree | dc300e4a1b4205e770c3629d359aa83deea72929 | |
parent | b3e83d6d187664be56a1591ccfa99124b88f0582 (diff) | |
download | linux-fsl-qoriq-78c784c47a2be593480cb6c69829a59f0504d575.tar.xz |
[IPV6]: Cleanup of net/ipv6/reassambly.c
Two minor cleanups:
1. Using kzalloc() in fraq_alloc_queue()
saves the memset() in ipv6_frag_create().
2. Invert sense of if-statements to streamline code.
Inverts the comment, too.
Signed-off-by: Ingo Oeser <ioe-lkml@rameria.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | net/ipv6/reassembly.c | 35 |
1 files changed, 17 insertions, 18 deletions
diff --git a/net/ipv6/reassembly.c b/net/ipv6/reassembly.c index 15e1456..b67a45f 100644 --- a/net/ipv6/reassembly.c +++ b/net/ipv6/reassembly.c @@ -203,7 +203,7 @@ static inline void frag_free_queue(struct frag_queue *fq, int *work) static inline struct frag_queue *frag_alloc_queue(void) { - struct frag_queue *fq = kmalloc(sizeof(struct frag_queue), GFP_ATOMIC); + struct frag_queue *fq = kzalloc(sizeof(struct frag_queue), GFP_ATOMIC); if(!fq) return NULL; @@ -288,6 +288,7 @@ static void ip6_evictor(void) static void ip6_frag_expire(unsigned long data) { struct frag_queue *fq = (struct frag_queue *) data; + struct net_device *dev; spin_lock(&fq->lock); @@ -299,22 +300,22 @@ static void ip6_frag_expire(unsigned long data) IP6_INC_STATS_BH(IPSTATS_MIB_REASMTIMEOUT); IP6_INC_STATS_BH(IPSTATS_MIB_REASMFAILS); - /* Send error only if the first segment arrived. */ - if (fq->last_in&FIRST_IN && fq->fragments) { - struct net_device *dev = dev_get_by_index(fq->iif); + /* Don't send error if the first segment did not arrive. */ + if (!(fq->last_in&FIRST_IN) || !fq->fragments) + goto out; - /* - But use as source device on which LAST ARRIVED - segment was received. And do not use fq->dev - pointer directly, device might already disappeared. - */ - if (dev) { - fq->fragments->dev = dev; - icmpv6_send(fq->fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0, - dev); - dev_put(dev); - } - } + dev = dev_get_by_index(fq->iif); + if (!dev) + goto out; + + /* + But use as source device on which LAST ARRIVED + segment was received. And do not use fq->dev + pointer directly, device might already disappeared. + */ + fq->fragments->dev = dev; + icmpv6_send(fq->fragments, ICMPV6_TIME_EXCEED, ICMPV6_EXC_FRAGTIME, 0, dev); + dev_put(dev); out: spin_unlock(&fq->lock); fq_put(fq, NULL); @@ -368,8 +369,6 @@ ip6_frag_create(unsigned int hash, u32 id, struct in6_addr *src, struct in6_addr if ((fq = frag_alloc_queue()) == NULL) goto oom; - memset(fq, 0, sizeof(struct frag_queue)); - fq->id = id; ipv6_addr_copy(&fq->saddr, src); ipv6_addr_copy(&fq->daddr, dst); |