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leds: trigger: netdev: Recheck NETDEV_LED_MODE_LINKUP on dev rename

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commit cee4bd16c3 upstream.

Dev can be renamed also while up for supported device. We currently
wrongly clear the NETDEV_LED_MODE_LINKUP flag on NETDEV_CHANGENAME
event.

Fix this by rechecking if the carrier is ok on NETDEV_CHANGENAME and
correctly set the NETDEV_LED_MODE_LINKUP bit.

Fixes: 5f820ed523 ("leds: trigger: netdev: fix handling on interface rename")
Cc: stable@vger.kernel.org # v5.5+
Signed-off-by: Christian Marangi <ansuelsmth@gmail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: Lee Jones <lee@kernel.org>
Link: https://lore.kernel.org/r/20230419210743.3594-2-ansuelsmth@gmail.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Christian Marangi 2023-04-19 23:07:39 +02:00 • committed by Justin Hammond
parent 2b42e8fd2f
commit bd5d04a28b
1 changed files with 3 additions and 0 deletions
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3
drivers/leds/trigger/ledtrig-netdev.c
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@ -318,6 +318,9 @@ static int netdev_trig_notify(struct notifier_block *nb,
clear_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode);
switch (evt) {
case NETDEV_CHANGENAME:
if (netif_carrier_ok(dev))
set_bit(NETDEV_LED_MODE_LINKUP, &trigger_data->mode);
fallthrough;
case NETDEV_REGISTER:
if (trigger_data->net_dev)
dev_put(trigger_data->net_dev);