switchdev: add switchdev_trans_ph_prepare/commit helpers

Add helpers which should be used int attr_set/obj_add switchdev ops to
check the phase of transaction.

Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Pirko 2015-09-24 10:02:43 +02:00 • committed by David S. Miller
commit 8bdb427206