mac80211: remove sent_ps_buffered

This variable is set once, and tested once.
However, the code path that can set it is
mutually exclusive with the code path that
tests it, so the test is always true. Thus
we also don't need to set it either and can
just remove the variable.

Signed-off-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c
index 51cb8bc..c06496f 100644
--- a/net/mac80211/rx.c
+++ b/net/mac80211/rx.c
@@ -789,7 +789,7 @@
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
 }
 
-static int ap_sta_ps_end(struct sta_info *sta)
+static void ap_sta_ps_end(struct sta_info *sta)
 {
 	struct ieee80211_sub_if_data *sdata = sta->sdata;
 	struct ieee80211_local *local = sdata->local;
@@ -819,8 +819,6 @@
 	       "since STA not sleeping anymore\n", sdata->dev->name,
 	       sta->sta.addr, sta->sta.aid, sent - buffered, buffered);
 #endif /* CONFIG_MAC80211_VERBOSE_PS_DEBUG */
-
-	return sent;
 }
 
 static ieee80211_rx_result debug_noinline
@@ -879,7 +877,7 @@
 			 */
 			if (ieee80211_is_data(hdr->frame_control) &&
 			    !ieee80211_has_pm(hdr->frame_control))
-				rx->sent_ps_buffered += ap_sta_ps_end(sta);
+				ap_sta_ps_end(sta);
 		} else {
 			if (ieee80211_has_pm(hdr->frame_control))
 				ap_sta_ps_start(sta);
@@ -1147,7 +1145,7 @@
 		if (no_pending_pkts)
 			sta_info_clear_tim_bit(rx->sta);
 #ifdef CONFIG_MAC80211_VERBOSE_PS_DEBUG
-	} else if (!rx->sent_ps_buffered) {
+	} else {
 		/*
 		 * FIXME: This can be the result of a race condition between
 		 *	  us expiring a frame and the station polling for it.