From f6c2cdb12f02dd6bf5518fcd0da93263ff54c063 Mon Sep 17 00:00:00 2001
From: Adrian Chadd <adrian@FreeBSD.org>
Date: Fri, 28 Oct 2016 02:10:07 +0000
Subject: [PATCH] [net80211] add comments!

---
 sys/net80211/ieee80211_scan.c | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/sys/net80211/ieee80211_scan.c b/sys/net80211/ieee80211_scan.c
index 11cc8d992b4..c972e82b6fd 100644
--- a/sys/net80211/ieee80211_scan.c
+++ b/sys/net80211/ieee80211_scan.c
@@ -443,6 +443,9 @@ ieee80211_cancel_scan(struct ieee80211vap *vap)
 
 /*
  * Cancel any scan currently going on.
+ *
+ * This is called during normal 802.11 data path to cancel
+ * a scan so a newly arrived normal data packet can be sent.
  */
 void
 ieee80211_cancel_anyscan(struct ieee80211vap *vap)