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[IPV4] IP_GRE: 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 20:44:48 +09:00 committed by David S. Miller
parent 87d1a164df
commit 5056a1ef9e
1 changed files with 10 additions and 13 deletions
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23
net/ipv4/ip_gre.c
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@ -191,11 +191,11 @@ static struct ip_tunnel * ipgre_tunnel_lookup(__be32 remote, __be32 local, __be3
return NULL;
}
static struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
static struct ip_tunnel **__ipgre_bucket(struct ip_tunnel_parm *parms)
{
__be32 remote = t->parms.iph.daddr;
__be32 local = t->parms.iph.saddr;
__be32 key = t->parms.i_key;
__be32 remote = parms->iph.daddr;
__be32 local = parms->iph.saddr;
__be32 key = parms->i_key;
unsigned h = HASH(key);
int prio = 0;
@ -209,6 +209,11 @@ static struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
return &tunnels[prio][h];
}
static inline struct ip_tunnel **ipgre_bucket(struct ip_tunnel *t)
{
return __ipgre_bucket(&t->parms);
}
static void ipgre_tunnel_link(struct ip_tunnel *t)
{
struct ip_tunnel **tp = ipgre_bucket(t);
@ -240,17 +245,9 @@ static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int
__be32 key = parms->i_key;
struct ip_tunnel *t, **tp, *nt;
struct net_device *dev;
unsigned h = HASH(key);
int prio = 0;
char name[IFNAMSIZ];
if (local)
prio |= 1;
if (remote && !MULTICAST(remote)) {
prio |= 2;
h ^= HASH(remote);
}
for (tp = &tunnels[prio][h]; (t = *tp) != NULL; tp = &t->next) {
for (tp = __ipgre_bucket(parms); (t = *tp) != NULL; tp = &t->next) {
if (local == t->parms.iph.saddr && remote == t->parms.iph.daddr) {
if (key == t->parms.i_key)
return t;