Merge branch 'inet_dump_ifaddr-no-rtnl'

Eric Dumazet says:

====================
inet: no longer use RTNL to protect inet_dump_ifaddr()

This series convert inet so that a dump of addresses (ip -4 addr)
no longer requires RTNL.
====================

Reviewed-by: Jiri Pirko <jiri@nvidia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>