From: David Gnedt <david.gnedt@davizone.at>
Date: Tue, 7 Jan 2014 12:09:06 +0000 (+0100)
Subject: wl1251: disable power saving in monitor mode
X-Git-Tag: sz_161~14
X-Git-Url: https://git.openpandora.org/cgi-bin/gitweb.cgi?p=pandora-kernel.git;a=commitdiff_plain;h=ddce323b6e323ae45f58369069e072ce4316a97e;hp=78cd2c3777847cac223e421a0acacea134f571a9

wl1251: disable power saving in monitor mode

Force power saving off while monitor interface is present.

Signed-off-by: David Gnedt <david.gnedt@davizone.at>
Signed-off-by: Pali Rohár <pali.rohar@gmail.com>
Signed-off-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
---

diff --git a/drivers/net/wireless/wl1251/main.c b/drivers/net/wireless/wl1251/main.c
index 3a3f19cb888a..7bcedad7f8e0 100644
--- a/drivers/net/wireless/wl1251/main.c
+++ b/drivers/net/wireless/wl1251/main.c
@@ -675,6 +675,11 @@ out:
 	mutex_unlock(&wl->mutex);
 }
 
+static bool wl1251_can_do_pm(struct ieee80211_conf *conf, struct wl1251 *wl)
+{
+	return (conf->flags & IEEE80211_CONF_PS) && !wl->monitor_present;
+}
+
 static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed)
 {
 	struct wl1251 *wl = hw->priv;
@@ -721,7 +726,7 @@ static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed)
 			goto out_sleep;
 	}
 
-	if (conf->flags & IEEE80211_CONF_PS && !wl->psm_requested) {
+	if (wl1251_can_do_pm(conf, wl) && !wl->psm_requested) {
 		wl1251_debug(DEBUG_PSM, "psm enabled");
 
 		wl->psm_requested = true;
@@ -729,8 +734,7 @@ static int wl1251_op_config(struct ieee80211_hw *hw, u32 changed)
 		wl->dtim_period = conf->ps_dtim_period;
 
 		ieee80211_queue_delayed_work(wl->hw, &wl->ps_work, 0);
-	} else if (!(conf->flags & IEEE80211_CONF_PS) &&
-		   wl->psm_requested) {
+	} else if (!wl1251_can_do_pm(conf, wl) && wl->psm_requested) {
 		wl1251_debug(DEBUG_PSM, "psm disabled");
 
 		wl->psm_requested = false;