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authorHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-12-14 19:23:03 +0100
committerHaavard Skinnemoen <haavard.skinnemoen@atmel.com>2009-12-14 19:23:03 +0100
commit559300bc0ef7ccd541656f1189d38e7088389559 (patch)
treecd1682881ca4246e9c5a1e8632be4bdd9d9706c6 /net/bridge/br_if.c
parent5416bf33f92a4104dbcd6062bf377c8421ca3cfd (diff)
parent22763c5cf3690a681551162c15d34d935308c8d7 (diff)
Merge commit 'v2.6.32'
Conflicts: arch/avr32/mach-at32ap/include/mach/cpu.h
Diffstat (limited to 'net/bridge/br_if.c')
-rw-r--r--net/bridge/br_if.c6
1 files changed, 5 insertions, 1 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c
index b1b3b0fbf41c..4a9f52732655 100644
--- a/net/bridge/br_if.c
+++ b/net/bridge/br_if.c
@@ -377,12 +377,16 @@ int br_add_if(struct net_bridge *br, struct net_device *dev)
struct net_bridge_port *p;
int err = 0;
- if (dev->flags & IFF_LOOPBACK || dev->type != ARPHRD_ETHER)
+ /* Don't allow bridging non-ethernet like devices */
+ if ((dev->flags & IFF_LOOPBACK) ||
+ dev->type != ARPHRD_ETHER || dev->addr_len != ETH_ALEN)
return -EINVAL;
+ /* No bridging of bridges */
if (dev->netdev_ops->ndo_start_xmit == br_dev_xmit)
return -ELOOP;
+ /* Device is already being bridged */
if (dev->br_port != NULL)
return -EBUSY;