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| author | Linus Lüssing <linus.luessing@c0d3.blue> | 2014-10-30 05:40:47 +0100 |
|---|---|---|
| committer | Antonio Quartulli <antonio@meshcoding.com> | 2015-01-06 11:06:04 +0100 |
| commit | a5164886b0bdadd662f9715a7541432c4d1a0d99 (patch) | |
| tree | d3c4c5bbaec4cf190551490635fadc0f8f565b9f /net | |
| parent | e8829f007e982a9a8fb4023109233d5f344d4657 (diff) | |
| download | linux-a5164886b0bdadd662f9715a7541432c4d1a0d99.tar.gz linux-a5164886b0bdadd662f9715a7541432c4d1a0d99.tar.bz2 linux-a5164886b0bdadd662f9715a7541432c4d1a0d99.zip | |
batman-adv: fix multicast counter when purging originators
When purging an orig_node we should only decrease counter tracking the
number of nodes without multicast optimizations support if it was
increased through this orig_node before.
A not yet quite initialized orig_node (meaning it did not have its turn
in the mcast-tvlv handler so far) which gets purged would not adhere to
this and will lead to a counter imbalance.
Fixing this by adding a check whether the orig_node is mcast-initalized
before decreasing the counter in the mcast-orig_node-purging routine.
Introduced by 60432d756cf06e597ef9da511402dd059b112447
("batman-adv: Announce new capability via multicast TVLV")
Reported-by: Tobias Hachmer <tobias@hachmer.de>
Signed-off-by: Linus Lüssing <linus.luessing@c0d3.blue>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
Diffstat (limited to 'net')
| -rw-r--r-- | net/batman-adv/multicast.c | 3 |
1 files changed, 2 insertions, 1 deletions
diff --git a/net/batman-adv/multicast.c b/net/batman-adv/multicast.c index d3503fbfec93..b24e4bb64fb5 100644 --- a/net/batman-adv/multicast.c +++ b/net/batman-adv/multicast.c @@ -740,7 +740,8 @@ void batadv_mcast_purge_orig(struct batadv_orig_node *orig) { struct batadv_priv *bat_priv = orig->bat_priv; - if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST)) + if (!(orig->capabilities & BATADV_ORIG_CAPA_HAS_MCAST) && + orig->capa_initialized & BATADV_ORIG_CAPA_HAS_MCAST) atomic_dec(&bat_priv->mcast.num_disabled); batadv_mcast_want_unsnoop_update(bat_priv, orig, BATADV_NO_FLAGS); |