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authorMark McLoughlin <markmc@redhat.com>2008-01-15 23:25:01 +0200
committerAdrian Bunk <bunk@kernel.org>2008-01-16 01:48:09 +0200
commitffcf747658eff56a00c1606b5d064ea9b6611668 (patch)
tree911f0857cf69b5e7a434372064f258bd73f9e3ea
parentd97b07efe475fc99271820c8c45db3092c99774d (diff)
[INET]: Fix netdev renaming and inet address labels
[ Upstream commit: 44344b2a85f03326c7047a8c861b0c625c674839 ] When re-naming an interface, the previous secondary address labels get lost e.g. $> brctl addbr foo $> ip addr add 192.168.0.1 dev foo $> ip addr add 192.168.0.2 dev foo label foo:00 $> ip addr show dev foo | grep inet inet 192.168.0.1/32 scope global foo inet 192.168.0.2/32 scope global foo:00 $> ip link set foo name bar $> ip addr show dev bar | grep inet inet 192.168.0.1/32 scope global bar inet 192.168.0.2/32 scope global bar:2 Turns out to be a simple thinko in inetdev_changename() - clearly we want to look at the address label, rather than the device name, for a suffix to retain. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net> Signed-off-by: Adrian Bunk <bunk@kernel.org>
-rw-r--r--net/ipv4/devinet.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/net/ipv4/devinet.c b/net/ipv4/devinet.c
index 73a62007e36..4f88e2ef57f 100644
--- a/net/ipv4/devinet.c
+++ b/net/ipv4/devinet.c
@@ -962,7 +962,7 @@ static void inetdev_changename(struct net_device *dev, struct in_device *in_dev)
memcpy(ifa->ifa_label, dev->name, IFNAMSIZ);
if (named++ == 0)
continue;
- dot = strchr(ifa->ifa_label, ':');
+ dot = strchr(old, ':');
if (dot == NULL) {
sprintf(old, ":%d", named);
dot = old;