From: Eliad Peller <eliad@wizery.com>
Date: Wed, 5 Sep 2012 17:23:56 +0000 (+0300)
Subject: mac80211: use synchronize_net() on key destroying
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=964b19f9770cd8d299fa99c84b0ff2e90df9c523;p=linux-beck.git

mac80211: use synchronize_net() on key destroying

__ieee80211_key_destroy() calls synchronize_rcu() in
order to sync the tx path before destroying the key.

However, synching the tx path can be done with
synchronize_net() as well, which is usually faster
(the timing might be important for roaming scenarios).

Signed-off-by: Eliad Peller <eliad@wizery.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
---

diff --git a/net/mac80211/key.c b/net/mac80211/key.c
index 7ae678ba5d67..d27e61aaa71b 100644
--- a/net/mac80211/key.c
+++ b/net/mac80211/key.c
@@ -402,7 +402,7 @@ static void __ieee80211_key_destroy(struct ieee80211_key *key)
 	 * Synchronize so the TX path can no longer be using
 	 * this key before we free/remove it.
 	 */
-	synchronize_rcu();
+	synchronize_net();
 
 	if (key->local)
 		ieee80211_key_disable_hw_accel(key);