This is a note to let you know that I've just added the patch titled
bonding: fix active-backup transition after link failure
to the 4.14-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:
bonding-fix-active-backup-transition-after-link-fail.patch
and it can be found in the queue-4.14 subdirectory.
If you, or anyone else, feels it should not be added to the stable tree,
please let <stable@xxxxxxxxxxxxxxx> know about it.
commit e99b858d9605ff5c590fc360ba029fe106779800
Author: Mahesh Bandewar <maheshb@xxxxxxxxxx>
Date: Fri Dec 6 15:44:55 2019 -0800
bonding: fix active-backup transition after link failure
[ Upstream commit 5d485ed88d48f8101a2067348e267c0aaf4ed486 ]
After the recent fix in commit 1899bb325149 ("bonding: fix state
transition issue in link monitoring"), the active-backup mode with
miimon initially come-up fine but after a link-failure, both members
transition into backup state.
Following steps to reproduce the scenario (eth1 and eth2 are the
slaves of the bond):
ip link set eth1 up
ip link set eth2 down
sleep 1
ip link set eth2 up
ip link set eth1 down
cat /sys/class/net/eth1/bonding_slave/state
cat /sys/class/net/eth2/bonding_slave/state
Fixes: 1899bb325149 ("bonding: fix state transition issue in link monitoring")
CC: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
Signed-off-by: Mahesh Bandewar <maheshb@xxxxxxxxxx>
Acked-by: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
Signed-off-by: Jakub Kicinski <jakub.kicinski@xxxxxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/bonding/bond_main.c b/drivers/net/bonding/bond_main.c
index 5f6602cb191f..fef599eb822b 100644
--- a/drivers/net/bonding/bond_main.c
+++ b/drivers/net/bonding/bond_main.c
@@ -2186,9 +2186,6 @@ static void bond_miimon_commit(struct bonding *bond)
} else if (BOND_MODE(bond) != BOND_MODE_ACTIVEBACKUP) {
/* make it immediately active */
bond_set_active_slave(slave);
- } else if (slave != primary) {
- /* prevent it from being the active one */
- bond_set_backup_slave(slave);
}
netdev_info(bond->dev, "link status definitely up for interface %s, %u Mbps %s duplex\n",
