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authorKalle Valo <kalle.valo@nokia.com>2008-12-18 23:35:13 +0200
committerJohn W. Linville <linville@tuxdriver.com>2008-12-19 15:23:57 -0500
commite0cb686ff879dc9ac045ad7258ec687088d4e450 (patch)
tree4792dc94d6a36be8367987b88b922157acf59808
parentd10d0e5707fb7b8afa7e68a14d69e752604ee294 (diff)
downloadop-kernel-dev-e0cb686ff879dc9ac045ad7258ec687088d4e450.zip
op-kernel-dev-e0cb686ff879dc9ac045ad7258ec687088d4e450.tar.gz
mac80211: enable IEEE80211_CONF_PS only when associated
Also disable power save when disassociated. It makes no sense to have power save enabled while disassociated. iwlwifi seems to have this check in the driver, but it's better to do this in mac80211 instead. Signed-off-by: Kalle Valo <kalle.valo@nokia.com> Acked-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--net/mac80211/ieee80211_i.h1
-rw-r--r--net/mac80211/mlme.c15
-rw-r--r--net/mac80211/wext.c32
3 files changed, 40 insertions, 8 deletions
diff --git a/net/mac80211/ieee80211_i.h b/net/mac80211/ieee80211_i.h
index a7dabae..18b9160 100644
--- a/net/mac80211/ieee80211_i.h
+++ b/net/mac80211/ieee80211_i.h
@@ -688,6 +688,7 @@ struct ieee80211_local {
*/
int wifi_wme_noack_test;
unsigned int wmm_acm; /* bit field of ACM bits (BIT(802.1D tag)) */
+ bool powersave;
#ifdef CONFIG_MAC80211_DEBUGFS
struct local_debugfsdentries {
diff --git a/net/mac80211/mlme.c b/net/mac80211/mlme.c
index 1374b8c..dac8bd3 100644
--- a/net/mac80211/mlme.c
+++ b/net/mac80211/mlme.c
@@ -744,6 +744,11 @@ static void ieee80211_set_associated(struct ieee80211_sub_if_data *sdata,
bss_info_changed |= BSS_CHANGED_BASIC_RATES;
ieee80211_bss_info_change_notify(sdata, bss_info_changed);
+ if (local->powersave) {
+ local->hw.conf.flags |= IEEE80211_CONF_PS;
+ ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ }
+
netif_tx_start_all_queues(sdata->dev);
netif_carrier_on(sdata->dev);
@@ -812,7 +817,7 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
{
struct ieee80211_local *local = sdata->local;
struct sta_info *sta;
- u32 changed = 0;
+ u32 changed = 0, config_changed = 0;
rcu_read_lock();
@@ -859,8 +864,14 @@ static void ieee80211_set_disassoc(struct ieee80211_sub_if_data *sdata,
local->hw.conf.ht.enabled = false;
local->oper_channel_type = NL80211_CHAN_NO_HT;
- ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_HT);
+ config_changed |= IEEE80211_CONF_CHANGE_HT;
+
+ if (local->hw.conf.flags & IEEE80211_CONF_PS) {
+ local->hw.conf.flags &= ~IEEE80211_CONF_PS;
+ config_changed |= IEEE80211_CONF_CHANGE_PS;
+ }
+ ieee80211_hw_config(local, config_changed);
ieee80211_bss_info_change_notify(sdata, changed);
rcu_read_lock();
diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c
index 1542804..f6640d0 100644
--- a/net/mac80211/wext.c
+++ b/net/mac80211/wext.c
@@ -830,25 +830,46 @@ static int ieee80211_ioctl_siwpower(struct net_device *dev,
struct iw_param *wrq,
char *extra)
{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
struct ieee80211_conf *conf = &local->hw.conf;
+ int ret = 0;
+ bool ps;
+
+ if (sdata->vif.type != NL80211_IFTYPE_STATION)
+ return -EINVAL;
if (wrq->disabled) {
- conf->flags &= ~IEEE80211_CONF_PS;
- return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ ps = false;
+ goto set;
}
switch (wrq->flags & IW_POWER_MODE) {
case IW_POWER_ON: /* If not specified */
case IW_POWER_MODE: /* If set all mask */
case IW_POWER_ALL_R: /* If explicitely state all */
- conf->flags |= IEEE80211_CONF_PS;
+ ps = true;
break;
default: /* Otherwise we don't support it */
return -EINVAL;
}
- return ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ if (ps == local->powersave)
+ return ret;
+
+set:
+ local->powersave = ps;
+
+ if (sdata->u.sta.flags & IEEE80211_STA_ASSOCIATED) {
+ if (local->powersave)
+ conf->flags |= IEEE80211_CONF_PS;
+ else
+ conf->flags &= ~IEEE80211_CONF_PS;
+
+ ret = ieee80211_hw_config(local, IEEE80211_CONF_CHANGE_PS);
+ }
+
+ return ret;
}
static int ieee80211_ioctl_giwpower(struct net_device *dev,
@@ -857,9 +878,8 @@ static int ieee80211_ioctl_giwpower(struct net_device *dev,
char *extra)
{
struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
- struct ieee80211_conf *conf = &local->hw.conf;
- wrqu->power.disabled = !(conf->flags & IEEE80211_CONF_PS);
+ wrqu->power.disabled = !local->powersave;
return 0;
}
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