diff options
Diffstat (limited to 'net/bridge/br_if.c')
| -rw-r--r-- | net/bridge/br_if.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/net/bridge/br_if.c b/net/bridge/br_if.c index 81e49fb73169..b087d278c679 100644 --- a/net/bridge/br_if.c +++ b/net/bridge/br_if.c @@ -436,10 +436,16 @@ int br_add_if(struct net_bridge *br, struct net_device *dev) int err = 0; bool changed_addr; - /* Don't allow bridging non-ethernet like devices */ + /* Don't allow bridging non-ethernet like devices, or DSA-enabled + * master network devices since the bridge layer rx_handler prevents + * the DSA fake ethertype handler to be invoked, so we do not strip off + * the DSA switch tag protocol header and the bridge layer just return + * RX_HANDLER_CONSUMED, stopping RX processing for these frames. + */ if ((dev->flags & IFF_LOOPBACK) || dev->type != ARPHRD_ETHER || dev->addr_len != ETH_ALEN || - !is_valid_ether_addr(dev->dev_addr)) + !is_valid_ether_addr(dev->dev_addr) || + netdev_uses_dsa(dev)) return -EINVAL; /* No bridging of bridges */ |