net: dsa: add find port by node helper
authorVivien Didelot <vivien.didelot@savoirfairelinux.com>
Mon, 6 Nov 2017 21:11:49 +0000 (16:11 -0500)
committerDavid S. Miller <davem@davemloft.net>
Thu, 9 Nov 2017 00:26:49 +0000 (09:26 +0900)
commitf163da8853aa9d8060157a96ed314299b87ba070
tree73eab0f44676943c15efaa98ea7015c21d7742b9
parent1d27732f411d57f0168af30be2adb504b8b7749d
net: dsa: add find port by node helper

Instead of having two dsa_ds_find_port_dn (which returns a bool) and
dsa_dst_find_port_dn (which returns a switch) functions, provide a more
explicit dsa_tree_find_port_by_node function which returns a matching
port.

Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
net/dsa/dsa2.c