From: Nicolas Dichtel nicolas.dichtel@6wind.com
commit da6f1da819d4b9c081a477dec74dc468a0b44290 upstream.
The function gretap_fb_dev_create() (only used by ovs) never calls rtnl_configure_link(). The consequence is that dev->rtnl_link_state is never set to RTNL_LINK_INITIALIZED. During the deletion phase, the function rollback_registered_many() sends a RTM_DELLINK only if dev->rtnl_link_state is set to RTNL_LINK_INITIALIZED.
Fixes: b2acd1dc3949 ("openvswitch: Use regular GRE net_device instead of vport") CC: Thomas Graf tgraf@suug.ch CC: Pravin B Shelar pshelar@nicira.com Signed-off-by: Nicolas Dichtel nicolas.dichtel@6wind.com Signed-off-by: David S. Miller davem@davemloft.net Signed-off-by: Greg Kroah-Hartman gregkh@linuxfoundation.org
--- net/ipv4/ip_gre.c | 4 ++++ 1 file changed, 4 insertions(+)
--- a/net/ipv4/ip_gre.c +++ b/net/ipv4/ip_gre.c @@ -1265,6 +1265,10 @@ struct net_device *gretap_fb_dev_create( if (err) goto out;
+ err = rtnl_configure_link(dev, NULL); + if (err < 0) + goto out; + return dev; out: ip_tunnel_dellink(dev, &list_kill);