From: Felix Fietkau <nbd@openwrt.org>
Date: Sat, 23 Feb 2013 17:40:57 +0000 (+0100)
Subject: mac80211: fix idle handling in monitor mode
X-Git-Url: http://git.cdn.openwrt.org/?a=commitdiff_plain;h=b759f4ddcafb6414056cf3e49f2ab12359101c2e;p=openwrt%2Fstaging%2Fblogic.git

mac80211: fix idle handling in monitor mode

When the driver does not want a monitor mode VIF, no channel context is
allocated for it. This causes ieee80211_recalc_idle to put the hardware
into idle mode if only a monitor mode is active, breaking injection.

Fix this by checking local->monitors in addition to active channel
contexts.

Signed-off-by: Felix Fietkau <nbd@openwrt.org>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/net/mac80211/iface.c b/net/mac80211/iface.c
index 2c059e54e885..640afab304d7 100644
--- a/net/mac80211/iface.c
+++ b/net/mac80211/iface.c
@@ -107,7 +107,7 @@ void ieee80211_recalc_idle(struct ieee80211_local *local)
 
 	lockdep_assert_held(&local->mtx);
 
-	active = !list_empty(&local->chanctx_list);
+	active = !list_empty(&local->chanctx_list) || local->monitors;
 
 	if (!local->ops->remain_on_channel) {
 		list_for_each_entry(roc, &local->roc_list, list) {