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authorJohannes Berg <johannes@sipsolutions.net>2009-08-12 23:33:20 +0200
committerJohn W. Linville <linville@tuxdriver.com>2009-08-14 09:14:08 -0400
commit16cb9d42b68b339852e8914f2538ca9a2aec616c (patch)
treeaef8822ae4d5dc7574af3c52501b8d6449c2ccc0
parent36e6fea84905512ea776707e82b5b435220efc17 (diff)
downloadlinux-16cb9d42b68b339852e8914f2538ca9a2aec616c.tar.bz2
cfg80211: allow driver to override PS default
Sometimes drivers might have a good reason to override the PS default, like iwlwifi right now where it affects RX performance significantly at this point. This will allow them to override the default, if desired, in a way that users can still change it according to their trade-off choices, not the driver's, like would happen if the driver just disabled PS completely then. Signed-off-by: Johannes Berg <johannes@sipsolutions.net> Signed-off-by: John W. Linville <linville@tuxdriver.com>
-rw-r--r--include/net/cfg80211.h4
-rw-r--r--net/wireless/core.c4
2 files changed, 7 insertions, 1 deletions
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 223913434e51..0b146bb2dd14 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1108,6 +1108,9 @@ struct cfg80211_ops {
* @net: the network namespace this wiphy currently lives in
* @netnsok: if set to false, do not allow changing the netns of this
* wiphy at all
+ * @ps_default: default for powersave, will be set depending on the
+ * kernel's default on wiphy_new(), but can be changed by the
+ * driver if it has a good reason to override the default
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -1123,6 +1126,7 @@ struct wiphy {
bool disable_beacon_hints;
bool netnsok;
+ bool ps_default;
enum cfg80211_signal_type signal_type;
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 35d83bedfe5b..bc99e4ec7463 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -412,6 +412,8 @@ struct wiphy *wiphy_new(const struct cfg80211_ops *ops, int sizeof_priv)
rdev->wiphy.dev.class = &ieee80211_class;
rdev->wiphy.dev.platform_data = rdev;
+ rdev->wiphy.ps_default = CONFIG_CFG80211_DEFAULT_PS_VALUE;
+
wiphy_net_set(&rdev->wiphy, &init_net);
rdev->rfkill_ops.set_block = cfg80211_rfkill_set_block;
@@ -674,7 +676,7 @@ static int cfg80211_netdev_notifier_call(struct notifier_block * nb,
wdev->wext.default_key = -1;
wdev->wext.default_mgmt_key = -1;
wdev->wext.connect.auth_type = NL80211_AUTHTYPE_AUTOMATIC;
- wdev->wext.ps = CONFIG_CFG80211_DEFAULT_PS_VALUE;
+ wdev->wext.ps = wdev->wiphy->ps_default;
wdev->wext.ps_timeout = 100;
if (rdev->ops->set_power_mgmt)
if (rdev->ops->set_power_mgmt(wdev->wiphy, dev,