tree 892d0fbc2ecae39f2e5c4a7b711cbb988c8dc3f1
parent 28a16c97963d3bc36a2c192859f6d8025ef2967a
author Simon Arlott <simon@fire.lp0.eu> 1273483871 +0000
committer David S. Miller <davem@davemloft.net> 1273990215 -0700

bridge: update sysfs link names if port device names have changed

Links for each port are created in sysfs using the device
name, but this could be changed after being added to the
bridge.

As well as being unable to remove interfaces after this
occurs (because userspace tools don't recognise the new
name, and the kernel won't recognise the old name), adding
another interface with the old name to the bridge will
cause an error trying to create the sysfs link.

This fixes the problem by listening for NETDEV_CHANGENAME
notifications and renaming the link.

https://bugzilla.kernel.org/show_bug.cgi?id=12743

Signed-off-by: Simon Arlott <simon@fire.lp0.eu>
Acked-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>