Re: [PATCH net-next v2 2/3] net: dsa: add Arrow SpeedChips XRS700x driver

This means, as far as I understand, 2 things:
1. call_netdevice_notifiers_info doesn't help, since our problem is the
   same
2. I think that holding the RTNL should also be a valid way to iterate
   through the net devices in the current netns, and doing just that
   could be the simplest way out. It certainly worked when I tried it.
   But those could also be famous last words...

DSA makes the assumption it can block in a notifier change event.  For
example, NETDEV_CHANGEUPPER calls dsa_slave_changeupper() which calls
into the driver. We have not seen any warnings about sleeping while
atomic. So maybe see how NETDEV_CHANGEUPPER is issued.

	Andrew