linux-kernel - [244/264] mac80211: config hw when going back on-channel

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Message-Id: <20111109213207.073441721@clark.kroah.org>
Date:	Wed, 09 Nov 2011 13:34:51 -0800
From:	Greg KH <gregkh@...e.de>
To:	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Cc:	torvalds@...ux-foundation.org, akpm@...ux-foundation.org,
	alan@...rguk.ukuu.org.uk, Eliad Peller <eliad@...ery.com>,
	"John W. Linville" <linville@...driver.com>
Subject: [244/264] mac80211: config hw when going back on-channel

3.1-stable review patch.  If anyone has any objections, please let me know.

------------------

From: Eliad Peller <eliad@...ery.com>

commit 6911bf0453e0d6ea8eb694a4ce67a68d071c538e upstream.

When going back on-channel, we should reconfigure
the hw iff the hardware is not already configured
to the operational channel.

Signed-off-by: Eliad Peller <eliad@...ery.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>

---
 net/mac80211/work.c |    3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

--- a/net/mac80211/work.c
+++ b/net/mac80211/work.c
@@ -1093,7 +1093,6 @@ static void ieee80211_work_work(struct w
 	}
 
 	if (!remain_off_channel && local->tmp_channel) {
-		bool on_oper_chan = ieee80211_cfg_on_oper_channel(local);
 		local->tmp_channel = NULL;
 		/* If tmp_channel wasn't operating channel, then
 		 * we need to go back on-channel.
@@ -1103,7 +1102,7 @@ static void ieee80211_work_work(struct w
 		 * we still need to do a hardware config.  Currently,
 		 * we cannot be here while scanning, however.
 		 */
-		if (ieee80211_cfg_on_oper_channel(local) && !on_oper_chan)
+		if (!ieee80211_cfg_on_oper_channel(local))
 			ieee80211_hw_config(local, 0);
 
 		/* At the least, we need to disable offchannel_ps,


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