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net: bridge: convert mtu_set_by_user to a bit 

Convert the last remaining bool option to a bit thus reducing the overall
net_bridge size further by 8 bytes.

Signed-off-by: Nikolay Aleksandrov <nikolay@cumulusnetworks.com>
Reviewed-by: Stephen Hemminger <stephen@networkplumber.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Nikolay Aleksandrov 2018-09-26 17:01:06 +03:00 committed by David S. Miller
parent c69c2cd444
commit 3341d91702
3 changed files with 4 additions and 4 deletions
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2
net/bridge/br_device.c
View File

@ -228,7 +228,7 @@ static int br_change_mtu(struct net_device *dev, int new_mtu)
dev->mtu = new_mtu;
/* this flag will be cleared if the MTU was automatically adjusted */
br->mtu_set_by_user = true;
br_opt_toggle(br, BROPT_MTU_SET_BY_USER, true);
#if IS_ENABLED(CONFIG_BRIDGE_NETFILTER)
/* remember the MTU in the rtable for PMTU */
dst_metric_set(&br->fake_rtable.dst, RTAX_MTU, new_mtu);

4
net/bridge/br_if.c
View File

@ -508,14 +508,14 @@ void br_mtu_auto_adjust(struct net_bridge *br)
ASSERT_RTNL();
/* if the bridge MTU was manually configured don't mess with it */
if (br->mtu_set_by_user)
if (br_opt_get(br, BROPT_MTU_SET_BY_USER))
return;
/* change to the minimum MTU and clear the flag which was set by
* the bridge ndo_change_mtu callback
*/
dev_set_mtu(br->dev, br_mtu_min(br));
br->mtu_set_by_user = false;
br_opt_toggle(br, BROPT_MTU_SET_BY_USER, false);
}
static void br_set_gso_limits(struct net_bridge *br)

2
net/bridge/br_private.h
View File

@ -319,6 +319,7 @@ enum net_bridge_opts {
BROPT_MULTICAST_STATS_ENABLED,
BROPT_HAS_IPV6_ADDR,
BROPT_NEIGH_SUPPRESS_ENABLED,
BROPT_MTU_SET_BY_USER,
};
struct net_bridge {
@ -415,7 +416,6 @@ struct net_bridge {
#ifdef CONFIG_NET_SWITCHDEV
int offload_fwd_mark;
#endif
bool mtu_set_by_user;
struct hlist_head fdb_list;
};