[NETLINK]: Ignore control messages directly in netlink_run_queue()

Changes netlink_rcv_skb() to skip netlink controll messages and don't
pass them on to the message handler.

Signed-off-by: Thomas Graf <tgraf@suug.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 0 insertions, 4 deletions

diff --git a/net/core/rtnetlink.c b/net/core/rtnetlink.c
index cc09283fd76..b2136accd26 100644
--- a/net/core/rtnetlink.c
+++ b/net/core/rtnetlink.c
@@ -864,10 +864,6 @@ rtnetlink_rcv_msg(struct sk_buff *skb, struct nlmsghdr *nlh, int *errp)
 
         type = nlh->nlmsg_type;
 
-        /* A control message: ignore them */
-        if (type < RTM_BASE)
-                return 0;
-
         /* Unknown message: reply with EINVAL */
         if (type > RTM_MAX)
                 goto err_inval;