From: Johannes Berg <johannes@sipsolutions.net>
Date: Sun, 30 May 2010 12:53:43 +0000 (+0200)
Subject: mac80211: drop control frames after processing
X-Git-Url: https://git.stricted.de/?a=commitdiff_plain;h=08daecaead42b85b69b33d7d8429a93dfbf75b58;p=GitHub%2FLineageOS%2Fandroid_kernel_motorola_exynos9610.git

mac80211: drop control frames after processing

After ieee80211_rx_h_ctrl() processing we only
want to process management (including action)
frames, so there's no point in letting control
frames continue.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 0ade26793918..0b9898ac4d87 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -1844,7 +1844,12 @@ ieee80211_rx_h_ctrl(struct ieee80211_rx_data *rx, struct sk_buff_head *frames)
 		return RX_QUEUED;
 	}
 
-	return RX_CONTINUE;
+	/*
+	 * After this point, we only want management frames,
+	 * so we can drop all remaining control frames to
+	 * cooked monitor interfaces.
+	 */
+	return RX_DROP_MONITOR;
 }
 
 static void ieee80211_process_sa_query_req(struct ieee80211_sub_if_data *sdata,