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authorVivien Didelot <vivien.didelot@savoirfairelinux.com>2016-12-10 13:44:28 -0500
committerDavid S. Miller <davem@davemloft.net>2016-12-10 21:27:23 -0500
commit8384b5f5b293389a42cc65bfca2d767d15809aa1 (patch)
treeccb3b54b6b7865239a750e1573b83ef76774728a /net
parentnet: bridge: add helper to offload ageing time (diff)
downloadlinux-dev-8384b5f5b293389a42cc65bfca2d767d15809aa1.tar.xz
linux-dev-8384b5f5b293389a42cc65bfca2d767d15809aa1.zip
net: bridge: add helper to set topology change
Add a __br_set_topology_change helper to set the topology change value. This can be later extended to add actions when the topology change flag is set or cleared. Signed-off-by: Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to '')
-rw-r--r--net/bridge/br_private_stp.h1
-rw-r--r--net/bridge/br_stp.c10
-rw-r--r--net/bridge/br_stp_if.c2
-rw-r--r--net/bridge/br_stp_timer.c2
4 files changed, 11 insertions, 4 deletions
diff --git a/net/bridge/br_private_stp.h b/net/bridge/br_private_stp.h
index 2fe910c4e170..3f7543a29b76 100644
--- a/net/bridge/br_private_stp.h
+++ b/net/bridge/br_private_stp.h
@@ -61,6 +61,7 @@ void br_received_tcn_bpdu(struct net_bridge_port *p);
void br_transmit_config(struct net_bridge_port *p);
void br_transmit_tcn(struct net_bridge *br);
void br_topology_change_detection(struct net_bridge *br);
+void __br_set_topology_change(struct net_bridge *br, unsigned char val);
/* br_stp_bpdu.c */
void br_send_config_bpdu(struct net_bridge_port *, struct br_config_bpdu *);
diff --git a/net/bridge/br_stp.c b/net/bridge/br_stp.c
index 6ebe2a021e3c..8d7b4c7a1d54 100644
--- a/net/bridge/br_stp.c
+++ b/net/bridge/br_stp.c
@@ -234,7 +234,7 @@ static void br_record_config_timeout_values(struct net_bridge *br,
br->max_age = bpdu->max_age;
br->hello_time = bpdu->hello_time;
br->forward_delay = bpdu->forward_delay;
- br->topology_change = bpdu->topology_change;
+ __br_set_topology_change(br, bpdu->topology_change);
}
/* called under bridge lock */
@@ -344,7 +344,7 @@ void br_topology_change_detection(struct net_bridge *br)
isroot ? "propagating" : "sending tcn bpdu");
if (isroot) {
- br->topology_change = 1;
+ __br_set_topology_change(br, 1);
mod_timer(&br->topology_change_timer, jiffies
+ br->bridge_forward_delay + br->bridge_max_age);
} else if (!br->topology_change_detected) {
@@ -603,6 +603,12 @@ int br_set_ageing_time(struct net_bridge *br, clock_t ageing_time)
return 0;
}
+/* called under bridge lock */
+void __br_set_topology_change(struct net_bridge *br, unsigned char val)
+{
+ br->topology_change = val;
+}
+
void __br_set_forward_delay(struct net_bridge *br, unsigned long t)
{
br->bridge_forward_delay = t;
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 2efbba549195..6c1e21411125 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -81,7 +81,7 @@ void br_stp_disable_bridge(struct net_bridge *br)
}
- br->topology_change = 0;
+ __br_set_topology_change(br, 0);
br->topology_change_detected = 0;
spin_unlock_bh(&br->lock);
diff --git a/net/bridge/br_stp_timer.c b/net/bridge/br_stp_timer.c
index da058b85aa22..7ddb38e0a06e 100644
--- a/net/bridge/br_stp_timer.c
+++ b/net/bridge/br_stp_timer.c
@@ -125,7 +125,7 @@ static void br_topology_change_timer_expired(unsigned long arg)
br_debug(br, "topo change timer expired\n");
spin_lock(&br->lock);
br->topology_change_detected = 0;
- br->topology_change = 0;
+ __br_set_topology_change(br, 0);
spin_unlock(&br->lock);
}