mac80211: rename max_sleep_interval to max_sleep_period

Kalle points out that max_sleep_interval is somewhat confusing
because the value is measured in beacon intervals, and not in
TU. Rename it to max_sleep_period to be consistent with things
like DTIM period that are also measured in beacon intervals.
Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>

include/net/mac80211.h

@@ -559,7 +559,7 @@ enum ieee80211_conf_changed {
  * @beacon_int: beacon interval (TODO make interface config)
  *
  * @listen_interval: listen interval in units of beacon interval
- * @max_sleep_interval: the maximum number of beacon intervals to sleep for
+ * @max_sleep_period: the maximum number of beacon intervals to sleep for
  *	before checking the beacon for a TIM bit (managed mode only); this
  *	value will be only achievable between DTIM frames, the hardware
  *	needs to check for the multicast traffic bit in DTIM beacons.
@@ -584,7 +584,7 @@ struct ieee80211_conf {
 	int beacon_int;
 	u32 flags;
 	int power_level, dynamic_ps_timeout;
-	int max_sleep_interval;
+	int max_sleep_period;
 
 	u16 listen_interval;
 	bool radio_enabled;

net/mac80211/mlme.c

@@ -562,7 +562,7 @@ void ieee80211_recalc_ps(struct ieee80211_local *local, s32 latency)
 				maxslp = min_t(int, dtimper,
 						    latency / beaconint_us);
 
-			local->hw.conf.max_sleep_interval = maxslp;
+			local->hw.conf.max_sleep_period = maxslp;
 			local->ps_sdata = found;
 		}
 	} else {