From: Christian Brauner <christian.brau...@ubuntu.com> Date: Wed, 7 Feb 2018 13:53:20 +0100
> Since we've added support for IFLA_IF_NETNSID for RTM_{DEL,GET,SET,NEW}LINK > it is possible for userspace to send us requests with three different > properties to identify a target network namespace. This affects at least > RTM_{NEW,SET}LINK. Each of them could potentially refer to a different > network namespace which is confusing. For legacy reasons the kernel will > pick the IFLA_NET_NS_PID property first and then look for the > IFLA_NET_NS_FD property but there is no reason to extend this type of > behavior to network namespace ids. The regression potential is quite > minimal since the rtnetlink requests in question either won't allow > IFLA_IF_NETNSID requests before 4.16 is out (RTM_{NEW,SET}LINK) or don't > support IFLA_NET_NS_{PID,FD} (RTM_{DEL,GET}LINK) in the first place. > > Signed-off-by: Christian Brauner <christian.brau...@ubuntu.com> Applied, thanks Christian.