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[IP_TUNNEL]: Don't limit the number of tunnels with generic name explicitly.

Browse source 
Use the added dev_alloc_name() call to create tunnel device name,
rather than iterate in a hand-made loop with an artificial limit.

Thanks Patrick for noticing this.

[ The way this works is, when the device is actually registered,
  the generic code noticed the '%' in the name and invokes
  dev_alloc_name() to fully resolve the name.  -DaveM ]

Signed-off-by: Pavel Emelyanov <xemul@openvz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Pavel Emelyanov 2008-02-23 20:19:20 -08:00 committed by David S. Miller
parent 55b01e8681
commit 34cc7ba639
5 changed files with 10 additions and 43 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

2
include/net/ip6_tunnel.h
View file

@ -14,8 +14,6 @@
/* capable of receiving packets */
#define IP6_TNL_F_CAP_RCV 0x20000
#define IP6_TNL_MAX 128
/* IPv6 tunnel */
struct ip6_tnl {

12
net/ipv4/ip_gre.c
View file

@ -259,16 +259,8 @@ static struct ip_tunnel * ipgre_tunnel_locate(struct ip_tunnel_parm *parms, int
if (parms->name[0])
strlcpy(name, parms->name, IFNAMSIZ);
else {
int i;
for (i=1; i<100; i++) {
sprintf(name, "gre%d", i);
if (__dev_get_by_name(&init_net, name) == NULL)
break;
}
if (i==100)
goto failed;
}
else
sprintf(name, "gre%%d");
dev = alloc_netdev(sizeof(*t), name, ipgre_tunnel_setup);
if (!dev)

12
net/ipv4/ipip.c
View file

@ -221,16 +221,8 @@ static struct ip_tunnel * ipip_tunnel_locate(struct ip_tunnel_parm *parms, int c
if (parms->name[0])
strlcpy(name, parms->name, IFNAMSIZ);
else {
int i;
for (i=1; i<100; i++) {
sprintf(name, "tunl%d", i);
if (__dev_get_by_name(&init_net, name) == NULL)
break;
}
if (i==100)
goto failed;
}
else
sprintf(name, "tunl%%d");
dev = alloc_netdev(sizeof(*t), name, ipip_tunnel_setup);
if (dev == NULL)

15
net/ipv6/ip6_tunnel.c
View file

@ -229,18 +229,11 @@ static struct ip6_tnl *ip6_tnl_create(struct ip6_tnl_parm *p)
char name[IFNAMSIZ];
int err;
if (p->name[0]) {
if (p->name[0])
strlcpy(name, p->name, IFNAMSIZ);
} else {
int i;
for (i = 1; i < IP6_TNL_MAX; i++) {
sprintf(name, "ip6tnl%d", i);
if (__dev_get_by_name(&init_net, name) == NULL)
break;
}
if (i == IP6_TNL_MAX)
goto failed;
}
else
sprintf(name, "ip6tnl%%d");
dev = alloc_netdev(sizeof (*t), name, ip6_tnl_dev_setup);
if (dev == NULL)
goto failed;

12
net/ipv6/sit.c
View file

@ -164,16 +164,8 @@ static struct ip_tunnel * ipip6_tunnel_locate(struct ip_tunnel_parm *parms, int
if (parms->name[0])
strlcpy(name, parms->name, IFNAMSIZ);
else {
int i;
for (i=1; i<100; i++) {
sprintf(name, "sit%d", i);
if (__dev_get_by_name(&init_net, name) == NULL)
break;
}
if (i==100)
goto failed;
}
else
sprintf(name, "sit%%d");
dev = alloc_netdev(sizeof(*t), name, ipip6_tunnel_setup);
if (dev == NULL)