Commit 34cc7ba6 authored by Pavel Emelyanov's avatar Pavel Emelyanov Committed by David S. Miller

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

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: default avatarPavel Emelyanov <xemul@openvz.org>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 55b01e86
......@@ -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 {
......
......@@ -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)
......
......@@ -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)
......
......@@ -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;
......
......@@ -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)
......
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