Commit 8debcf58 authored by David Wei's avatar David Wei Committed by David S. Miller
Browse files

netdevsim: add ndo_get_iflink() implementation 



Add an implementation for ndo_get_iflink() in netdevsim that shows the
ifindex of the linked peer, if any.

Signed-off-by: default avatarDavid Wei <dw@davidwei.uk>
Reviewed-by: default avatarMaciek Machnikowski <maciek@machnikowski.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 9eb95228

drivers/net/netdevsim/netdev.c

+16 −0
Original line number Diff line number Diff line
@@ -283,6 +283,21 @@ nsim_set_features(struct net_device *dev, netdev_features_t features) 
	return 0;

}



static int nsim_get_iflink(const struct net_device *dev)

{

	struct netdevsim *nsim, *peer;

	int iflink;



	nsim = netdev_priv(dev);



	rcu_read_lock();

	peer = rcu_dereference(nsim->peer);

	iflink = peer ? READ_ONCE(peer->netdev->ifindex) : 0;

	rcu_read_unlock();



	return iflink;

}



static const struct net_device_ops nsim_netdev_ops = {

	.ndo_start_xmit		= nsim_start_xmit,

	.ndo_set_rx_mode	= nsim_set_rx_mode,
@@ -300,6 +315,7 @@ static const struct net_device_ops nsim_netdev_ops = { 
	.ndo_set_vf_rss_query_en = nsim_set_vf_rss_query_en,

	.ndo_setup_tc		= nsim_setup_tc,

	.ndo_set_features	= nsim_set_features,

	.ndo_get_iflink		= nsim_get_iflink,

	.ndo_bpf		= nsim_bpf,

};