Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net

The netfilter conflicts were rather simple overlapping
changes.

However, the cls_tcindex.c stuff was a bit more complex.

On the 'net' side, Cong is fixing several races and memory
leaks.  Whilst on the 'net-next' side we have Vlad adding
the rtnl-ness support.

What I've decided to do, in order to resolve this, is revert the
conversion over to using a workqueue that Cong did, bringing us back
to pure RCU.  I did it this way because I believe that either Cong's
races don't apply with have Vlad did things, or Cong will have to
implement the race fix slightly differently.

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 16 insertions, 1 deletions

diff --git a/net/tipc/link.c b/net/tipc/link.c
index ac306d17f8ad..341ecd796aa4 100644
--- a/net/tipc/link.c
+++ b/net/tipc/link.c
@@ -1145,7 +1145,7 @@ static bool tipc_data_input(struct tipc_link *l, struct sk_buff *skb,
 	default:
 		pr_warn("Dropping received illegal msg type\n");
 		kfree_skb(skb);
-		return false;
+		return true;
 	};
 }
 
@@ -1425,6 +1425,10 @@ static void tipc_link_build_proto_msg(struct tipc_link *l, int mtyp, bool probe,
 		l->rcv_unacked = 0;
 	} else {
 		/* RESET_MSG or ACTIVATE_MSG */
+		if (mtyp == ACTIVATE_MSG) {
+			msg_set_dest_session_valid(hdr, 1);
+			msg_set_dest_session(hdr, l->peer_session);
+		}
 		msg_set_max_pkt(hdr, l->advertised_mtu);
 		strcpy(data, l->if_name);
 		msg_set_size(hdr, INT_H_SIZE + TIPC_MAX_IF_NAME);
@@ -1642,6 +1646,17 @@ static int tipc_link_proto_rcv(struct tipc_link *l, struct sk_buff *skb,
 			rc = tipc_link_fsm_evt(l, LINK_FAILURE_EVT);
 			break;
 		}
+
+		/* If this endpoint was re-created while peer was ESTABLISHING
+		 * it doesn't know current session number. Force re-synch.
+		 */
+		if (mtyp == ACTIVATE_MSG && msg_dest_session_valid(hdr) &&
+		    l->session != msg_dest_session(hdr)) {
+			if (less(l->session, msg_dest_session(hdr)))
+				l->session = msg_dest_session(hdr) + 1;
+			break;
+		}
+
 		/* ACTIVATE_MSG serves as PEER_RESET if link is already down */
 		if (mtyp == RESET_MSG || !link_is_up(l))
 			rc = tipc_link_fsm_evt(l, LINK_PEER_RESET_EVT);