Patch "team: move dev_mc_sync after master_upper_dev_link in team_port_add" has been added to the 4.9-stable tree

Patch "team: move dev_mc_sync after master_upper_dev_link in team_port_add" has been added to the 4.9-stable tree

[gregkh]

This is a note to let you know that I've just added the patch titled

    team: move dev_mc_sync after master_upper_dev_link in team_port_add

to the 4.9-stable tree which can be found at:
    http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary

The filename of the patch is:
     team-move-dev_mc_sync-after-master_upper_dev_link-in-team_port_add.patch
and it can be found in the queue-4.9 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@vger.kernel.org> know about it.


>From foo@baz Wed Apr 11 10:26:56 CEST 2018
From: Xin Long <lucien.xin@gmail.com>
Date: Mon, 26 Mar 2018 01:25:06 +0800
Subject: team: move dev_mc_sync after master_upper_dev_link in team_port_add

From: Xin Long <lucien.xin@gmail.com>


[ Upstream commit 982cf3b3999d39a2eaca0a65542df33c19b5d814 ]

The same fix as in 'bonding: move dev_mc_sync after master_upper_dev_link
in bond_enslave' is needed for team driver.

The panic can be reproduced easily:

  ip link add team1 type team
  ip link set team1 up
  ip link add link team1 vlan1 type vlan id 80
  ip link set vlan1 master team1

Fixes: cb41c997d444 ("team: team should sync the port's uc/mc addrs when add a port")
Signed-off-by: Xin Long <lucien.xin@gmail.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
 drivers/net/team/team.c |   12 +++++-------
 1 file changed, 5 insertions(+), 7 deletions(-)

--- a/drivers/net/team/team.c
+++ b/drivers/net/team/team.c
@@ -1203,11 +1203,6 @@ static int team_port_add(struct team *te
 		goto err_dev_open;
 	}
 
-	netif_addr_lock_bh(dev);
-	dev_uc_sync_multiple(port_dev, dev);
-	dev_mc_sync_multiple(port_dev, dev);
-	netif_addr_unlock_bh(dev);
-
 	err = vlan_vids_add_by_dev(port_dev, dev);
 	if (err) {
 		netdev_err(dev, "Failed to add vlan ids to device %s\n",
@@ -1247,6 +1242,11 @@ static int team_port_add(struct team *te
 		goto err_option_port_add;
 	}
 
+	netif_addr_lock_bh(dev);
+	dev_uc_sync_multiple(port_dev, dev);
+	dev_mc_sync_multiple(port_dev, dev);
+	netif_addr_unlock_bh(dev);
+
 	port->index = -1;
 	list_add_tail_rcu(&port->list, &team->port_list);
 	team_port_enable(team, port);
@@ -1271,8 +1271,6 @@ err_enable_netpoll:
 	vlan_vids_del_by_dev(port_dev, dev);
 
 err_vids_add:
-	dev_uc_unsync(port_dev, dev);
-	dev_mc_unsync(port_dev, dev);
 	dev_close(port_dev);
 
 err_dev_open:


Patches currently in stable-queue which might be from lucien.xin@gmail.com are

queue-4.9/team-move-dev_mc_sync-after-master_upper_dev_link-in-team_port_add.patch
queue-4.9/bonding-process-the-err-returned-by-dev_set_allmulti-properly-in-bond_enslave.patch
queue-4.9/bonding-fix-the-err-path-for-dev-hwaddr-sync-in-bond_enslave.patch
queue-4.9/bonding-move-dev_mc_sync-after-master_upper_dev_link-in-bond_enslave.patch
queue-4.9/route-check-sysctl_fib_multipath_use_neigh-earlier-than-hash.patch
queue-4.9/sctp-fix-recursive-locking-warning-in-sctp_do_peeloff.patch