mac80211: add unified BSS configuration

This patch (based on Ron Rindjunsky's) creates a framework for
a unified way to pass BSS configuration to drivers that require
the information, e.g. for implementing power save mode.

This patch introduces new ieee80211_bss_conf structure that is
passed to the driver via the new bss_info_changed() callback
when the BSS configuration changes.

This new BSS configuration infrastructure adds the following
new features:
 * drivers are notified of their association AID
 * drivers are notified of association status

and replaces the erp_ie_changed() callback. The patch also does
the relevant driver updates for the latter change.

Signed-off-by: Ron Rindjunsky <ron.rindjunsky@intel.com>
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

1 files changed, 6 insertions, 6 deletions

diff --git a/net/mac80211/util.c b/net/mac80211/util.c
index ba81cf542818..5e631ce98d7e 100644
--- a/net/mac80211/util.c
+++ b/net/mac80211/util.c
@@ -312,8 +312,8 @@ __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw,
         int erp;
 
         erp = ieee80211_is_erp_rate(hw->conf.phymode, rate);
-        dur = ieee80211_frame_duration(local, frame_len, rate,
-                       erp, sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
+        dur = ieee80211_frame_duration(local, frame_len, rate, erp,
+                                       sdata->bss_conf.use_short_preamble);
 
         return cpu_to_le16(dur);
 }
@@ -326,11 +326,11 @@ __le16 ieee80211_rts_duration(struct ieee80211_hw *hw,
         struct ieee80211_local *local = hw_to_local(hw);
         struct ieee80211_rate *rate;
         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
-        int short_preamble;
+        bool short_preamble;
         int erp;
         u16 dur;
 
-        short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+        short_preamble = sdata->bss_conf.use_short_preamble;
 
         rate = frame_txctl->rts_rate;
         erp = !!(rate->flags & IEEE80211_RATE_ERP);
@@ -357,11 +357,11 @@ __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw,
         struct ieee80211_local *local = hw_to_local(hw);
         struct ieee80211_rate *rate;
         struct ieee80211_sub_if_data *sdata = vif_to_sdata(vif);
-        int short_preamble;
+        bool short_preamble;
         int erp;
         u16 dur;
 
-        short_preamble = sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE;
+        short_preamble = sdata->bss_conf.use_short_preamble;
 
         rate = frame_txctl->rts_rate;
         erp = !!(rate->flags & IEEE80211_RATE_ERP);