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| author | David S. Miller <davem@davemloft.net> | 2015-01-19 23:45:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-01-19 23:45:16 +0300 |
| commit | cbcd1fa72c7cc4ac5b8c8554731fdb06ac7ddaa8 (patch) | |
| tree | 73b836097d22b1c91acaaa5441180f47756a2658 | |
| parent | 5bdc73800dad3ef5d06977a4b90304bd34353933 (diff) | |
| parent | 8db0a2ee2c6302a1dcbcdb93cb731dfc6c0cdb5e (diff) | |
| download | linux-cbcd1fa72c7cc4ac5b8c8554731fdb06ac7ddaa8.tar.xz | |
Merge branch 'dsa-next'
Florian Fainelli says:
====================
net: DSA fixes for bridge and ip-autoconf
These two patches address some real world use cases of the DSA master and slave
network devices.
You have already seen patch 1 previously and you rejected it since my
explanations were not good enough to provide a justification as to why it is
useful, hopefully this time my explanation is better.
Patch 2 solves a different, yet very real problem as well at the bridge layer
when using DSA network devices.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/bridge/br_if.c | 10 | ||||
| -rw-r--r-- | net/ipv4/ipconfig.c | 6 |
2 files changed, 11 insertions, 5 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 */ diff --git a/net/ipv4/ipconfig.c b/net/ipv4/ipconfig.c index 7fa18bc7e47f..b26376ef87f6 100644 --- a/net/ipv4/ipconfig.c +++ b/net/ipv4/ipconfig.c @@ -209,9 +209,9 @@ static int __init ic_open_devs(void) last = &ic_first_dev; rtnl_lock(); - /* bring loopback device up first */ + /* bring loopback and DSA master network devices up first */ for_each_netdev(&init_net, dev) { - if (!(dev->flags & IFF_LOOPBACK)) + if (!(dev->flags & IFF_LOOPBACK) && !netdev_uses_dsa(dev)) continue; if (dev_change_flags(dev, dev->flags | IFF_UP) < 0) pr_err("IP-Config: Failed to open %s\n", dev->name); @@ -306,7 +306,7 @@ static void __init ic_close_devs(void) while ((d = next)) { next = d->next; dev = d->dev; - if (dev != ic_dev) { + if (dev != ic_dev && !netdev_uses_dsa(dev)) { DBG(("IP-Config: Downing %s\n", dev->name)); dev_change_flags(dev, d->flags); } |