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bridge: make bridge address settings sticky

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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>
This commit is contained in:
Stephen Hemminger
2008-06-17 16:10:06 -07:00
committed by David S. Miller
parent 43aa192011
commit 92c0574f11
3 changed files with 7 additions and 0 deletions
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4
net/bridge/br_stp_if.c
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@@ -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)