On 11/21/18 4:01 AM, Nicolas Dichtel wrote:
> diff --git a/net/core/net_namespace.c b/net/core/net_namespace.c
> index 92730905886c..fc568cd0b560 100644
> --- a/net/core/net_namespace.c
> +++ b/net/core/net_namespace.c
> @@ -740,7 +740,7 @@ static int rtnl_net_get_size(void)
> }
>
> static int rtnl_net_fill(struct sk_buff *skb, u32 portid, u32 seq, int flags,
> - int cmd, int nsid)
> + int cmd, int nsid, bool add_ref, int ref_nsid)
> {
> struct nlmsghdr *nlh;
> struct rtgenmsg *rth;
> @@ -755,6 +755,9 @@ static int rtnl_net_fill(struct sk_buff *skb, u32 portid,
> u32 seq, int flags,
> if (nla_put_s32(skb, NETNSA_NSID, nsid))
> goto nla_put_failure;
>
> + if (add_ref && nla_put_s32(skb, NETNSA_CURRENT_NSID, ref_nsid))
> + goto nla_put_failure;
Why not use ref_nsid >= 0 and drop the add_ref argument?