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authorPavel Emelyanov <xemul@openvz.org>2008-02-23 20:19:20 -0800
committerDavid S. Miller <davem@davemloft.net>2008-02-23 20:19:20 -0800
commit34cc7ba6398203aab4056917fa1e2aa5988487aa (patch)
tree40fc152c1d9722ca70154bd6d989694fff526280 /net/ipv4
parent55b01e8681cba392ccda4ff6184054d38968115d (diff)
[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: Pavel Emelyanov <xemul@openvz.org> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'net/ipv4')
-rw-r--r--net/ipv4/ip_gre.c12
-rw-r--r--net/ipv4/ipip.c12
2 files changed, 4 insertions, 20 deletions
diff --git a/net/ipv4/ip_gre.c b/net/ipv4/ip_gre.c
index 63f691719353..906cb1ada4c3 100644
--- a/net/ipv4/ip_gre.c
+++ b/net/ipv4/ip_gre.c
@@ -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)
diff --git a/net/ipv4/ipip.c b/net/ipv4/ipip.c
index da281581692c..e77e3b855834 100644
--- a/net/ipv4/ipip.c
+++ b/net/ipv4/ipip.c
@@ -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)