bridge: make bridge address settings sticky
Normally, the bridge just chooses the smallest mac address as the
bridge id and mac address of bridge device. But if the administrator
has explictly set the interface address then don't change it.
Signed-off-by: Stephen Hemminger <shemminger@vyatta.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c
index 1a4e5c3..9a52ac5 100644
--- a/net/bridge/br_stp_if.c
+++ b/net/bridge/br_stp_if.c
@@ -214,6 +214,10 @@
const unsigned char *addr = br_mac_zero;
struct net_bridge_port *p;
+ /* user has chosen a value so keep it */
+ if (br->flags & BR_SET_MAC_ADDR)
+ return;
+
list_for_each_entry(p, &br->port_list, list) {
if (addr == br_mac_zero ||
memcmp(p->dev->dev_addr, addr, ETH_ALEN) < 0)