From cbae7b957fa661126d668cfe6ab425c5b4b39c74 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes@sipsolutions.net>
Date: Tue, 28 Aug 2007 17:01:55 -0400
Subject: [PATCH] --- yaml --- r: 66367 b: refs/heads/master c:
 8dc06a1c6112fef7616d26e0b001455b5d8c3c5e h: refs/heads/master i:   66365:
 e87cfeb3faff9ccf3b9fb25085e6c13d88aed7e9   66363:
 6309656e1a8941d2b3f66681c3d9428910684393   66359:
 51c06ce184d4925d466a489adb10a6c82fe1e6cd   66351:
 461bfc7c3e5298e9f2b981e74881f3944711e719   66335:
 61c7f8797ca3028aad64fcd54420899adfb66f26   66303:
 f1adac2d09404d9e5b7ad7926b15c3ada8bb7716 v: v3

---
 [refs]                  | 2 +-
 trunk/net/mac80211/rx.c | 7 +++++++
 2 files changed, 8 insertions(+), 1 deletion(-)

diff --git a/[refs] b/[refs]
index 6878fb44aac7..75936c99ce29 100644
--- a/[refs]
+++ b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: b331615722779b078822988843ddffd4eaec9f83
+refs/heads/master: 8dc06a1c6112fef7616d26e0b001455b5d8c3c5e
diff --git a/trunk/net/mac80211/rx.c b/trunk/net/mac80211/rx.c
index 969be3adda7a..75a1e204b9b6 100644
--- a/trunk/net/mac80211/rx.c
+++ b/trunk/net/mac80211/rx.c
@@ -327,8 +327,15 @@ ieee80211_rx_h_load_key(struct ieee80211_txrx_data *rx)
 	 * frames can also use key indizes like GTKs. Hence, if we don't
 	 * have a PTK/STK we check the key index for a WEP key.
 	 *
+	 * Note that in a regular BSS, multicast frames are sent by the
+	 * AP only, associated stations unicast the frame to the AP first
+	 * which then multicasts it on their behalf.
+	 *
 	 * There is also a slight problem in IBSS mode: GTKs are negotiated
 	 * with each station, that is something we don't currently handle.
+	 * The spec seems to expect that one negotiates the same key with
+	 * every station but there's no such requirement; VLANs could be
+	 * possible.
 	 */
 
 	if (!(rx->fc & IEEE80211_FCTL_PROTECTED))