This is a note to let you know that I've just added the patch titled
bonding: pair enable_port with slave_arr_updates
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-pair-enable_port-with-slave_arr_updates.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 835d9e28a1126566e72094668b9d65d0d9a303b3
Author: Mahesh Bandewar <maheshb@xxxxxxxxxx>
Date: Mon Feb 7 14:29:01 2022 -0800
bonding: pair enable_port with slave_arr_updates
[ Upstream commit 23de0d7b6f0e3f9a6283a882594c479949da1120 ]
When 803.2ad mode enables a participating port, it should update
the slave-array. I have observed that the member links are participating
and are part of the active aggregator while the traffic is egressing via
only one member link (in a case where two links are participating). Via
kprobes I discovered that slave-arr has only one link added while
the other participating link wasn't part of the slave-arr.
I couldn't see what caused that situation but the simple code-walk
through provided me hints that the enable_port wasn't always associated
with the slave-array update.
Fixes: ee6377147409 ("bonding: Simplify the xmit function for modes that use xmit_hash")
Signed-off-by: Mahesh Bandewar <maheshb@xxxxxxxxxx>
Acked-by: Jay Vosburgh <jay.vosburgh@xxxxxxxxxxxxx>
Link: https://lore.kernel.org/r/20220207222901.1795287-1-maheshb@xxxxxxxxxx
Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
Signed-off-by: Sasha Levin <sashal@xxxxxxxxxx>
diff --git a/drivers/net/bonding/bond_3ad.c b/drivers/net/bonding/bond_3ad.c
index 93dfcef8afc4b..035923876c617 100644
--- a/drivers/net/bonding/bond_3ad.c
+++ b/drivers/net/bonding/bond_3ad.c
@@ -1012,8 +1012,8 @@ static void ad_mux_machine(struct port *port, bool *update_slave_arr)
if (port->aggregator &&
port->aggregator->is_active &&
!__port_is_enabled(port)) {
-
__enable_port(port);
+ *update_slave_arr = true;
}
}
break;
@@ -1760,6 +1760,7 @@ static void ad_agg_selection_logic(struct aggregator *agg,
port = port->next_port_in_aggregator) {
__enable_port(port);
}
+ *update_slave_arr = true;
}
}
