linux-kernel - [PATCH] [16/223] mac80211: add helper for reseting the connection monitor

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Date:	Mon, 13 Dec 2010 00:45:11 +0100 (CET)
From:	Andi Kleen <andi@...stfloor.org>
To:	lrodriguez@...eros.com, pstew@...gle.com, amod.bodas@...eros.com,
	linville@...driver.com, gregkh@...e.de, ak@...ux.intel.com,
	linux-kernel@...r.kernel.org, stable@...nel.org
Subject: [PATCH] [16/223] mac80211: add helper for reseting the connection monitor

2.6.35-longterm review patch.  If anyone has any objections, please let me know.

------------------
From: Luis R. Rodriguez <lrodriguez@...eros.com>

commit be099e82e9cf6d5d65d044e9ef6fc8bee3c7a113 upstream.

This will be used in another place later. The connection
monitor was added as of 2.6.35 so these fixes will be
applicable to >= 2.6.35.

Cc: Paul Stewart <pstew@...gle.com>
Cc: Amod Bodas <amod.bodas@...eros.com>
Signed-off-by: Luis R. Rodriguez <lrodriguez@...eros.com>
Signed-off-by: John W. Linville <linville@...driver.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@...e.de>
Signed-off-by: Andi Kleen <ak@...ux.intel.com>

---
 net/mac80211/ieee80211_i.h |    1 +
 net/mac80211/mlme.c        |   15 ++++++++++-----
 2 files changed, 11 insertions(+), 5 deletions(-)

Index: linux/net/mac80211/ieee80211_i.h
===================================================================
--- linux.orig/net/mac80211/ieee80211_i.h
+++ linux/net/mac80211/ieee80211_i.h
@@ -1002,6 +1002,7 @@ void ieee80211_sta_process_chanswitch(st
 				      u64 timestamp);
 void ieee80211_sta_quiesce(struct ieee80211_sub_if_data *sdata);
 void ieee80211_sta_restart(struct ieee80211_sub_if_data *sdata);
+void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata);
 
 /* IBSS code */
 void ieee80211_ibss_notify_scan_completed(struct ieee80211_local *local);
Index: linux/net/mac80211/mlme.c
===================================================================
--- linux.orig/net/mac80211/mlme.c
+++ linux/net/mac80211/mlme.c
@@ -118,6 +118,15 @@ static void mod_beacon_timer(struct ieee
 		  round_jiffies_up(jiffies + IEEE80211_BEACON_LOSS_TIME));
 }
 
+void ieee80211_sta_reset_conn_monitor(struct ieee80211_sub_if_data *sdata)
+{
+	if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
+		return;
+
+	mod_timer(&sdata->u.mgd.conn_mon_timer,
+		  round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME));
+}
+
 static int ecw2cw(int ecw)
 {
 	return (1 << ecw) - 1;
@@ -954,11 +963,7 @@ void ieee80211_sta_rx_notify(struct ieee
 	if (is_multicast_ether_addr(hdr->addr1))
 		return;
 
-	if (sdata->local->hw.flags & IEEE80211_HW_CONNECTION_MONITOR)
-		return;
-
-	mod_timer(&sdata->u.mgd.conn_mon_timer,
-		  round_jiffies_up(jiffies + IEEE80211_CONNECTION_IDLE_TIME));
+	ieee80211_sta_reset_conn_monitor(sdata);
 }
 
 static void ieee80211_mgd_probe_ap_send(struct ieee80211_sub_if_data *sdata)
--
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