[MAC80211]: implement ERP info change notifications
zd1211rw and bcm43xx are interested in being notified when ERP IE conditions
change, so that they can reprogram a register which affects how control frames
are transmitted.
This patch adds an interface similar to the one that can be found in softmac.
Signed-off-by: Daniel Drake <dsd@gentoo.org>
Signed-off-by: Jiri Benc <jbenc@suse.cz>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c
index f811a26..4715a95 100644
--- a/net/mac80211/ieee80211.c
+++ b/net/mac80211/ieee80211.c
@@ -464,8 +464,10 @@
if (sdata->type == IEEE80211_IF_TYPE_MNTR) {
local->monitors++;
local->hw.conf.flags |= IEEE80211_CONF_RADIOTAP;
- } else
+ } else {
ieee80211_if_config(dev);
+ ieee80211_reset_erp_info(dev);
+ }
if (sdata->type == IEEE80211_IF_TYPE_STA &&
!local->user_space_mlme)
@@ -748,6 +750,27 @@
return ret;
}
+void ieee80211_erp_info_change_notify(struct net_device *dev, u8 changes)
+{
+ struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+ if (local->ops->erp_ie_changed)
+ local->ops->erp_ie_changed(local_to_hw(local), changes,
+ sdata->use_protection,
+ !sdata->short_preamble);
+}
+
+void ieee80211_reset_erp_info(struct net_device *dev)
+{
+ struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
+
+ sdata->short_preamble = 0;
+ sdata->use_protection = 0;
+ ieee80211_erp_info_change_notify(dev,
+ IEEE80211_ERP_CHANGE_PROTECTION |
+ IEEE80211_ERP_CHANGE_PREAMBLE);
+}
+
struct dev_mc_list *ieee80211_get_mc_list_item(struct ieee80211_hw *hw,
struct dev_mc_list *prev,
void **ptr)