From e1622baf54df8cc958bf29d71de5ad545ea7d93c Mon Sep 17 00:00:00 2001 From: Nicolas Dichtel Date: Thu, 2 Apr 2015 17:07:10 +0200 Subject: [PATCH] dev: set iflink to 0 for virtual interfaces Virtual interfaces are supposed to set an iflink value != of their ifindex. It was not the case for some of them, like vxlan, bond or bridge. Let's set iflink to 0 when dev->rtnl_link_ops is set. Signed-off-by: Nicolas Dichtel Signed-off-by: David S. Miller --- net/core/dev.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/net/core/dev.c b/net/core/dev.c index 3be107e0bc93..26622d614f81 100644 --- a/net/core/dev.c +++ b/net/core/dev.c @@ -672,6 +672,10 @@ int dev_get_iflink(const struct net_device *dev) if (dev->netdev_ops && dev->netdev_ops->ndo_get_iflink) return dev->netdev_ops->ndo_get_iflink(dev); + /* If dev->rtnl_link_ops is set, it's a virtual interface. */ + if (dev->rtnl_link_ops) + return 0; + return dev->ifindex; } EXPORT_SYMBOL(dev_get_iflink); -- 2.20.1