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net: make net_device members garp_port and mrp_port conditional 

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 net_device in case
CONFIG_GARP or CONFIG_MRP are not enabled.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Tobias Klauser 2017-02-10 16:43:50 +01:00 committed by David S. Miller
parent 37fabbf4d4
commit fb585b4438
1 changed files with 4 additions and 0 deletions
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4
include/linux/netdevice.h
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@ -1865,8 +1865,12 @@ struct net_device {
struct pcpu_vstats __percpu *vstats;
};
#if IS_ENABLED(CONFIG_GARP)
struct garp_port __rcu *garp_port;
#endif
#if IS_ENABLED(CONFIG_MRP)
struct mrp_port __rcu *mrp_port;
#endif
struct device dev;
const struct attribute_group *sysfs_groups[4];