tree d6fe5436cf4d492c727cfb370232c87254d72097
parent 444fa88ac35aa1bf9b7c23945444bc67f631033b
author Michal Kubeček <mkubecek@suse.cz> 1378755904 +0200
committer David S. Miller <davem@davemloft.net> 1378933449 -0400

ipv6: don't call fib6_run_gc() until routing is ready

When loading the ipv6 module, ndisc_init() is called before
ip6_route_init(). As the former registers a handler calling
fib6_run_gc(), this opens a window to run the garbage collector
before necessary data structures are initialized. If a network
device is initialized in this window, adding MAC address to it
triggers a NETDEV_CHANGEADDR event, leading to a crash in
fib6_clean_all().

Take the event handler registration out of ndisc_init() into a
separate function ndisc_late_init() and move it after
ip6_route_init().

Signed-off-by: Michal Kubecek <mkubecek@suse.cz>
Signed-off-by: David S. Miller <davem@davemloft.net>