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[IPV4] IPIP: Unify code path to get hash array index. 

Signed-off-by: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org>
This commit is contained in:
YOSHIFUJI Hideaki 2007-04-24 20:44:47 +09:00 committed by David S. Miller
parent 420fe234ad
commit 87d1a164df
1 changed files with 8 additions and 14 deletions
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22
net/ipv4/ipip.c
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@ -157,10 +157,10 @@ static struct ip_tunnel * ipip_tunnel_lookup(__be32 remote, __be32 local)
return NULL; return NULL;
} }
static struct ip_tunnel **ipip_bucket(struct ip_tunnel *t) static struct ip_tunnel **__ipip_bucket(struct ip_tunnel_parm *parms)
{ {
__be32 remote = t->parms.iph.daddr; __be32 remote = parms->iph.daddr;
__be32 local = t->parms.iph.saddr; __be32 local = parms->iph.saddr;
unsigned h = 0; unsigned h = 0;
int prio = 0; int prio = 0;
@ -175,6 +175,10 @@ static struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
return &tunnels[prio][h]; return &tunnels[prio][h];
} }
static inline struct ip_tunnel **ipip_bucket(struct ip_tunnel *t)
{
return __ipip_bucket(&t->parms);
}
static void ipip_tunnel_unlink(struct ip_tunnel *t) static void ipip_tunnel_unlink(struct ip_tunnel *t)
{ {
@ -206,19 +210,9 @@ static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int c
__be32 local = parms->iph.saddr; __be32 local = parms->iph.saddr;
struct ip_tunnel *t, **tp, *nt; struct ip_tunnel *t, **tp, *nt;
struct net_device *dev; struct net_device *dev;
unsigned h = 0;
int prio = 0;
char name[IFNAMSIZ]; char name[IFNAMSIZ];
if (remote) { for (tp = __ipip_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
prio |= 2;
h ^= HASH(remote);
}
if (local) {
prio |= 1;
h ^= HASH(local);
}
for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr)
return t; return t;
} }