From: Tobias Klauser
Date: Fri, 10 Feb 2017 16:43:50 +0100
> garp_port is only used in net/802/garp.c which is only compiled with
> CONFIG_GARP enabled. Same goes for mrp_port which is only used in
> net/802/mrp.c with CONFIG_MRP enabled.
>
> Only include the two members in struct net_device if
garp_port is only used in net/802/garp.c which is only compiled with
CONFIG_GARP enabled. Same goes for mrp_port which is only used in
net/802/mrp.c with CONFIG_MRP enabled.
Only include the two members in struct net_device if their respective
CONFIG_* is enabled. This saves a few bytes in struct
