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| author | Tommy Christensen <tommy.christensen@tpack.net> | 2005-07-12 12:13:49 -0700 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2005-07-12 12:13:49 -0700 |
| commit | f4637b55ba960d9987a836617271659e9b7b0de8 (patch) | |
| tree | 3fa0763a55ce21fa4a26feae2866773439c7e620 | |
| parent | ab611487d8ada506e511d2b8f22fb8e7be9939b9 (diff) | |
| download | linux-3.10-f4637b55ba960d9987a836617271659e9b7b0de8.tar.gz linux-3.10-f4637b55ba960d9987a836617271659e9b7b0de8.tar.bz2 linux-3.10-f4637b55ba960d9987a836617271659e9b7b0de8.zip | |
[VLAN]: Fix early vlan adding leads to not functional device
OK, I can see what's happening here. eth0 doesn't detect link-up until
after a few seconds, so when the vlan interface is opened immediately
after eth0 has been opened, it inherits the link-down state. Subsequently
the vlan interface is never properly activated and are thus unable to
transmit any packets.
dev->state bits are not supposed to be manipulated directly. Something
similar is probably needed for the netif_device_present() bit, although
I don't know how this is meant to work for a virtual device.
Signed-off-by: David S. Miller <davem@davemloft.net>
| -rw-r--r-- | net/8021q/vlan.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/net/8021q/vlan.c b/net/8021q/vlan.c index 1f6d31670bc..91e412b0ab0 100644 --- a/net/8021q/vlan.c +++ b/net/8021q/vlan.c @@ -578,6 +578,14 @@ static int vlan_device_event(struct notifier_block *unused, unsigned long event, if (!vlandev) continue; + if (netif_carrier_ok(dev)) { + if (!netif_carrier_ok(vlandev)) + netif_carrier_on(vlandev); + } else { + if (netif_carrier_ok(vlandev)) + netif_carrier_off(vlandev); + } + if ((vlandev->state & VLAN_LINK_STATE_MASK) != flgs) { vlandev->state = (vlandev->state &~ VLAN_LINK_STATE_MASK) | flgs; |