src/patches/suse-2.6.27.25/patches.suse/nameif-track-rename.patch

   1 Subject: [PATCH] keep track of network interface renaming
   2 From: Olaf Hering <olh@suse.de>
   3
   4 Keep track about which network interface names were renamed after the
   5 network device driver printed its banner. Example insanity:
   6
   7 honeydew:~ # dmesg| grep -Ew '(eth[0-9]|rename|renamed)'
   8 e1000: eth0: e1000_probe: Intel(R) PRO/1000 Network Connection
   9 e1000: eth1: e1000_probe: Intel(R) PRO/1000 Network Connection
  10 e1000: eth2: e1000_probe: Intel(R) PRO/1000 Network Connection
  11 e1000: eth3: e1000_probe: Intel(R) PRO/1000 Network Connection
  12 dev_change_name: about to rename 'eth3' to 'eth0'
  13 dev_change_name: about to rename 'eth3' to 'ethxx3'
  14 eth3 renamed to ethxx3
  15 dev_change_name: about to rename 'ethxx3' to 'eth0'
  16 dev_change_name: about to rename 'eth0' to 'eth3'
  17 eth0 renamed to eth3
  18 dev_change_name: about to rename 'eth1' to 'eth2'
  19 dev_change_name: about to rename 'eth1' to 'ethxx1'
  20 eth1 renamed to ethxx1
  21 dev_change_name: about to rename 'ethxx1' to 'eth2'
  22 dev_change_name: about to rename 'eth2' to 'eth1'
  23 eth2 renamed to eth1
  24 dev_change_name: about to rename 'ethxx3' to 'eth0'
  25 ethxx3 renamed to eth0
  26 dev_change_name: about to rename 'ethxx1' to 'eth2'
  27 ethxx1 renamed to eth2
  28 e1000: eth0: e1000_watchdog_task: NIC Link is Up 100 Mbps Full Duplex
  29
  30
  31
  32 Signed-off-by: Olaf Hering <olh@suse.de>
  33
  34  net/core/dev.c |    4 ++++
  35  1 file changed, 4 insertions(+)
  36
  37 --- a/net/core/dev.c
  38 +++ b/net/core/dev.c
  39 @@ -922,7 +922,11 @@ int dev_change_name(struct net_device *d
  40         else if (__dev_get_by_name(net, newname))
  41                 return -EEXIST;
  42         else
  43 +       {
  44 +               if (strncmp(newname, dev->name, IFNAMSIZ))
  45 +                       printk(KERN_INFO "%s renamed to %s by %s [%u]\n", dev->name, newname, current->comm, current->pid);
  46                 strlcpy(dev->name, newname, IFNAMSIZ);
  47 +       }
  48
  49  rollback:
  50         err = device_rename(&dev->dev, dev->name);