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vxlan: fix initialization with custom link parameters

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Commit 0c867c9bf8 ("vxlan: move Ethernet initialization to a separate
function") changed initialization order and as an unintended result, when the
user specifies additional link parameters (such as IFLA_ADDRESS) while
creating vxlan interface, those are overwritten by vxlan_ether_setup later.

It's necessary to call ether_setup from withing the ->setup callback. That
way, the correct parameters are set by rtnl_create_link later. This is done
also for VXLAN-GPE, as we don't know the interface type yet at that point,
and changed to the correct interface type later.

Fixes: 0c867c9bf8 ("vxlan: move Ethernet initialization to a separate function")
Reported-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: Jiri Benc <jbenc@redhat.com>
Tested-by: Nicolas Dichtel <nicolas.dichtel@6wind.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jiri Benc 2016-04-28 16:36:30 +02:00 committed by David S. Miller
parent 638af17873
commit 65226ef8ea
1 changed files with 4 additions and 4 deletions
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8
drivers/net/vxlan.c
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@ -2557,6 +2557,9 @@ static void vxlan_setup(struct net_device *dev)
struct vxlan_dev *vxlan = netdev_priv(dev);
unsigned int h;
eth_hw_addr_random(dev);
ether_setup(dev);
dev->destructor = free_netdev;
SET_NETDEV_DEVTYPE(dev, &vxlan_type);
@ -2592,8 +2595,6 @@ static void vxlan_setup(struct net_device *dev)
static void vxlan_ether_setup(struct net_device *dev)
{
eth_hw_addr_random(dev);
ether_setup(dev);
dev->priv_flags &= ~IFF_TX_SKB_SHARING;
dev->priv_flags |= IFF_LIVE_ADDR_CHANGE;
dev->netdev_ops = &vxlan_netdev_ether_ops;
@ -2601,11 +2602,10 @@ static void vxlan_ether_setup(struct net_device *dev)
static void vxlan_raw_setup(struct net_device *dev)
{
dev->header_ops = NULL;
dev->type = ARPHRD_NONE;
dev->hard_header_len = 0;
dev->addr_len = 0;
dev->mtu = ETH_DATA_LEN;
dev->tx_queue_len = 1000;
dev->flags = IFF_POINTOPOINT | IFF_NOARP | IFF_MULTICAST;
dev->netdev_ops = &vxlan_netdev_raw_ops;
}