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Commit 79d4a94f authored by Gao feng's avatar Gao feng Committed by David S. Miller
Browse files

vxlan: remove vxlan_group_used in vxlan_open 



In vxlan_open, vxlan_group_used always returns true,
because the state of the vxlan deivces which we want
to open has alreay been running. and it has already
in vxlan_list.

Since ip_mc_join_group takes care of the reference
of struct ip_mc_list. removing vxlan_group_used here
is safe.

Signed-off-by: default avatarGao feng <gaofeng@cn.fujitsu.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 1a0ab767

drivers/net/vxlan.c

+1 −3
Original line number Diff line number Diff line
@@ -1935,7 +1935,6 @@ static void vxlan_uninit(struct net_device *dev) 
/* Start ageing timer and join group when device is brought up */

static int vxlan_open(struct net_device *dev)

{

	struct vxlan_net *vn = net_generic(dev_net(dev), vxlan_net_id);

	struct vxlan_dev *vxlan = netdev_priv(dev);

	struct vxlan_sock *vs = vxlan->vn_sock;
@@ -1943,8 +1942,7 @@ static int vxlan_open(struct net_device *dev) 
	if (!vs)

		return -ENOTCONN;



	if (vxlan_addr_multicast(&vxlan->default_dst.remote_ip) &&

	    vxlan_group_used(vn, &vxlan->default_dst.remote_ip)) {

	if (vxlan_addr_multicast(&vxlan->default_dst.remote_ip)) {

		vxlan_sock_hold(vs);

		dev_hold(dev);

		queue_work(vxlan_wq, &vxlan->igmp_join);