From 3383b5a69de59eeef2501834c6e0960b7e2bff28 Mon Sep 17 00:00:00 2001
From: Johannes Berg <johannes.berg@intel.com>
Date: Thu, 10 May 2012 20:14:43 +0200
Subject: nl80211: prevent additions to old station flags API

We don't really want/need to maintain the old
station flags API any more, so refuse changes
to new (not yet defined) flags from the old
flags API.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---
 net/wireless/nl80211.c | 10 ++++++++--
 1 file changed, 8 insertions(+), 2 deletions(-)

(limited to 'net')

diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index b67b1114e25..f1b0774d098 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -2410,10 +2410,16 @@ static int parse_station_flags(struct genl_info *info,
 		return -EINVAL;
 	}
 
-	for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++)
-		if (flags[flag])
+	for (flag = 1; flag <= NL80211_STA_FLAG_MAX; flag++) {
+		if (flags[flag]) {
 			params->sta_flags_set |= (1<<flag);
 
+			/* no longer support new API additions in old API */
+			if (flag > NL80211_STA_FLAG_MAX_OLD_API)
+				return -EINVAL;
+		}
+	}
+
 	return 0;
 }
 
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