Try yet again to deal with timing out nodes. We cannot hold the

node lock while sending a management frame as this will potentially
result in a LOR with a driver lock.  This doesn't happen for the
Atheros driver but does for the wi driver.  Use a generation number
to help process each node once when scanning the node table and
drop the node lock if we need to timeout a node and send a frame.

1 files changed, 1 insertions, 0 deletions

diff --git a/sys/net80211/ieee80211_var.h b/sys/net80211/ieee80211_var.h
index 2546bb8..e57d7ca 100644
--- a/sys/net80211/ieee80211_var.h
+++ b/sys/net80211/ieee80211_var.h
@@ -165,6 +165,7 @@ struct ieee80211com {
 	u_int16_t		ic_rtsthreshold;
 	u_int16_t		ic_fragthreshold;
 	struct mtx		ic_nodelock;	/* on node table */
+	u_int			ic_scangen;	/* gen# for timeout scan */
 	struct ieee80211_node	*(*ic_node_alloc)(struct ieee80211com *);
 	void			(*ic_node_free)(struct ieee80211com *,
 					struct ieee80211_node *);