From ac1bd8464f161ed1475ef73c431b926256c6b5bb Mon Sep 17 00:00:00 2001 From: Johannes Berg Date: Tue, 18 Jan 2011 13:45:32 +0100 Subject: [PATCH] mac80211: don't return beacons when mesh is disabled When mesh is disabled, mac80211 was returning beacons with an empty mesh ID. That isn't desirable, even if drivers shouldn't be trying to get beacons to start with. Signed-off-by: Johannes Berg Signed-off-by: John W. Linville --- net/mac80211/tx.c | 5 +++++ 1 file changed, 5 insertions(+) diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 2378305f7534..e46c801320e1 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -2299,6 +2299,11 @@ struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, struct ieee80211_mgmt *mgmt; u8 *pos; +#ifdef CONFIG_MAC80211_MESH + if (!sdata->u.mesh.mesh_id_len) + goto out; +#endif + /* headroom, head length, tail length and maximum TIM length */ skb = dev_alloc_skb(local->tx_headroom + 400 + sdata->u.mesh.vendor_ie_len);