diff options
| -rw-r--r-- | net/bridge/br_device.c | 1 | ||||
| -rw-r--r-- | net/bridge/br_private.h | 2 | ||||
| -rw-r--r-- | net/bridge/br_stp_if.c | 4 |
3 files changed, 7 insertions, 0 deletions
diff --git a/net/bridge/br_device.c b/net/bridge/br_device.c index a6ffc6c2a69f..d9449df7cad5 100644 --- a/net/bridge/br_device.c +++ b/net/bridge/br_device.c @@ -87,6 +87,7 @@ static int br_set_mac_address(struct net_device *dev, void *p) spin_lock_bh(&br->lock); memcpy(dev->dev_addr, addr->sa_data, ETH_ALEN); br_stp_change_bridge_id(br, addr->sa_data); + br->flags |= BR_SET_MAC_ADDR; spin_unlock_bh(&br->lock); return 0; diff --git a/net/bridge/br_private.h b/net/bridge/br_private.h index 83ff5861c2d2..8593c9f6a302 100644 --- a/net/bridge/br_private.h +++ b/net/bridge/br_private.h @@ -92,6 +92,8 @@ struct net_bridge struct hlist_head hash[BR_HASH_SIZE]; struct list_head age_list; unsigned long feature_mask; + unsigned long flags; +#define BR_SET_MAC_ADDR 0x00000001 /* STP */ bridge_id designated_root; diff --git a/net/bridge/br_stp_if.c b/net/bridge/br_stp_if.c index 1a4e5c37a0cf..9a52ac5b4525 100644 --- a/net/bridge/br_stp_if.c +++ b/net/bridge/br_stp_if.c @@ -214,6 +214,10 @@ void br_stp_recalculate_bridge_id(struct net_bridge *br) 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) |