mac80211: clean up beacon interval settings

We currently have two beacon interval configuration knobs:
hw.conf.beacon_int and vif.bss_info.beacon_int. This is
rather confusing, even though the former is used when we
beacon ourselves and the latter when we are associated to
an AP.

This just deprecates the hw.conf.beacon_int setting in favour
of always using vif.bss_info.beacon_int. Since it touches all
the beaconing IBSS code anyway, we can also add support for
the cfg80211 IBSS beacon interval configuration easily.

NOTE: The hw.conf.beacon_int setting is retained for now due
      to drivers still using it -- I couldn't untangle all
      drivers, some are updated in this patch.

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

1 files changed, 12 insertions, 2 deletions

diff --git a/include/net/mac80211.h b/include/net/mac80211.h
index 81d706d85226..22c65e8cbb71 100644
--- a/include/net/mac80211.h
+++ b/include/net/mac80211.h
@@ -149,6 +149,7 @@ struct ieee80211_low_level_stats {
  * @BSS_CHANGED_ERP_SLOT: slot timing changed
  * @BSS_CHANGED_HT: 802.11n parameters changed
  * @BSS_CHANGED_BASIC_RATES: Basic rateset changed
+ * @BSS_CHANGED_BEACON_INT: Beacon interval changed
  */
 enum ieee80211_bss_change {
         BSS_CHANGED_ASSOC               = 1<<0,
@@ -157,6 +158,7 @@ enum ieee80211_bss_change {
         BSS_CHANGED_ERP_SLOT            = 1<<3,
         BSS_CHANGED_HT                  = 1<<4,
         BSS_CHANGED_BASIC_RATES         = 1<<5,
+        BSS_CHANGED_BEACON_INT          = 1<<6,
 };
 
 /**
@@ -529,7 +531,7 @@ enum ieee80211_conf_flags {
  * enum ieee80211_conf_changed - denotes which configuration changed
  *
  * @IEEE80211_CONF_CHANGE_RADIO_ENABLED: the value of radio_enabled changed
- * @IEEE80211_CONF_CHANGE_BEACON_INTERVAL: the beacon interval changed
+ * @_IEEE80211_CONF_CHANGE_BEACON_INTERVAL: DEPRECATED
  * @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed
  * @IEEE80211_CONF_CHANGE_RADIOTAP: the radiotap flag changed
  * @IEEE80211_CONF_CHANGE_PS: the PS flag or dynamic PS timeout changed
@@ -539,7 +541,7 @@ enum ieee80211_conf_flags {
  */
 enum ieee80211_conf_changed {
         IEEE80211_CONF_CHANGE_RADIO_ENABLED     = BIT(0),
-        IEEE80211_CONF_CHANGE_BEACON_INTERVAL   = BIT(1),
+        _IEEE80211_CONF_CHANGE_BEACON_INTERVAL  = BIT(1),
         IEEE80211_CONF_CHANGE_LISTEN_INTERVAL   = BIT(2),
         IEEE80211_CONF_CHANGE_RADIOTAP          = BIT(3),
         IEEE80211_CONF_CHANGE_PS                = BIT(4),
@@ -548,6 +550,14 @@ enum ieee80211_conf_changed {
         IEEE80211_CONF_CHANGE_RETRY_LIMITS      = BIT(7),
 };
 
+static inline __deprecated enum ieee80211_conf_changed
+__IEEE80211_CONF_CHANGE_BEACON_INTERVAL(void)
+{
+        return _IEEE80211_CONF_CHANGE_BEACON_INTERVAL;
+}
+#define IEEE80211_CONF_CHANGE_BEACON_INTERVAL \
+        __IEEE80211_CONF_CHANGE_BEACON_INTERVAL()
+
 /**
  * struct ieee80211_conf - configuration of the device
  *