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authorIngo Molnar <mingo@elte.hu>2009-11-15 09:50:38 +0100
committerIngo Molnar <mingo@elte.hu>2009-11-15 09:50:41 +0100
commit39dc78b6510323848e3356452f7dab9499736978 (patch)
treecf8a8fede74e41b203fd00e3ccd21ead2e851442 /net/bridge/br_if.c
parent4c49b12853fbb5eff4849b7b6a1e895776f027a1 (diff)
parent156171c71a0dc4bce12b4408bb1591f8fe32dc1a (diff)
Merge commit 'v2.6.32-rc7' into perf/core
Merge reason: pick up perf fixlets Signed-off-by: Ingo Molnar <mingo@elte.hu>
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 b1b3b0fbf41..4a9f5273265 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;