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Patch "bonding: set carrier off for devices created through netlink" has been added to the 4.4-stable tree

PATCH [email protected] 1 participant 1 message Aug 12, 2016

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

bonding: set carrier off for devices created through netlink

to the 4.4-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-set-carrier-off-for-devices-created-through-netlink.patch
and it can be found in the queue-4.4 subdirectory.

If you, or anyone else, feels it should not be added to the stable tree, please let <[email protected]> know about it.

Quoted 1 line

From foo@baz Fri Aug 12 09:33:59 CEST 2016

From: Beniamino Galvani <[email protected]>
Date: Wed, 13 Jul 2016 18:25:08 +0200
Subject: bonding: set carrier off for devices created through netlink

From: Beniamino Galvani <[email protected]>

[ Upstream commit 005db31d5f5f7c31cfdc43505d77eb3ca5cf8ec6 ]

Commit e826eafa65c6 ("bonding: Call netif_carrier_off after register_netdevice") moved netif_carrier_off() from bond_init() to bond_create(), but the latter is called only for initial default devices and ones created through sysfs:

 $ modprobe bonding
 $ echo +bond1 > /sys/class/net/bonding_masters
 $ ip link add bond2 type bond
 $ grep "MII Status" /proc/net/bonding/*
 /proc/net/bonding/bond0:MII Status: down
 /proc/net/bonding/bond1:MII Status: down
 /proc/net/bonding/bond2:MII Status: up

Ensure that carrier is initially off also for devices created through netlink.

---
 drivers/net/bonding/bond_netlink.c |    6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)
drivers/net/bonding/bond_netlink.c +5 -1
@@ -446,7 +446,11 @@ static int bond_newlink(struct net *src_
 	if (err < 0)
 		return err;
 
-	return register_netdevice(bond_dev);
+	err = register_netdevice(bond_dev);
+
+	netif_carrier_off(bond_dev);
+
+	return err;
 }
 
 static size_t bond_get_size(const struct net_device *bond_dev)

Patches currently in stable-queue which might be from [email protected] are

queue-4.4/bonding-set-carrier-off-for-devices-created-through-netlink.patch