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| author | Sven Eckelmann <sven@narfation.org> | 2016-03-19 13:55:21 +0100 |
|---|---|---|
| committer | Antonio Quartulli <a@unstable.cc> | 2016-04-24 09:40:23 +0200 |
| commit | f2d23861b818d08bcd15cc1612ae94aa33b3931c (patch) | |
| tree | 922815be7d079dbb474d3ecb259cfe520f750d7a /net/batman-adv/routing.c | |
| parent | batman-adv: init neigh node last seen field (diff) | |
| download | linux-f2d23861b818d08bcd15cc1612ae94aa33b3931c.tar.xz linux-f2d23861b818d08bcd15cc1612ae94aa33b3931c.zip | |
batman-adv: Deactivate TO_BE_ACTIVATED hardif on shutdown
The shutdown of an batman-adv interface can happen with one of its slave
interfaces still being in the BATADV_IF_TO_BE_ACTIVATED state. A possible
reason for it is that the routing algorithm BATMAN_V was selected and
batadv_schedule_bat_ogm was not yet called for this interface. This slave
interface still has to be set to BATADV_IF_INACTIVE or the batman-adv
interface will never reduce its usage counter and thus never gets shutdown.
This problem can be simulated via:
$ modprobe dummy
$ modprobe batman-adv routing_algo=BATMAN_V
$ ip link add bat0 type batadv
$ ip link set dummy0 master bat0
$ ip link set dummy0 up
$ ip link del bat0
unregister_netdevice: waiting for bat0 to become free. Usage count = 3
Reported-by: Matthias Schiffer <mschiffer@universe-factory.net>
Signed-off-by: Sven Eckelmann <sven@narfation.org>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <a@unstable.cc>
Diffstat (limited to 'net/batman-adv/routing.c')
0 files changed, 0 insertions, 0 deletions