mac80211: merge some pending fixes, fixes skb leaks and some warnings

SVN-Revision: 29460

package/mac80211/patches/300-pending_work.patch

@@ -589,7 +589,18 @@
  			    TEST(TDLS_PEER_AUTH));
 --- a/net/mac80211/ht.c
 +++ b/net/mac80211/ht.c
-@@ -282,6 +282,8 @@ void ieee80211_send_delba(struct ieee802
+@@ -47,7 +47,9 @@ void ieee80211_apply_htcap_overrides(str
+ 	int i;
+ 
+ 	if (sdata->vif.type != NL80211_IFTYPE_STATION) {
+-		WARN_ON_ONCE(sdata->vif.type != NL80211_IFTYPE_STATION);
++		/* AP interfaces call this code when adding new stations,
++		 * so just silently ignore non station interfaces.
++		 */
+ 		return;
+ 	}
+ 
+@@ -282,6 +284,8 @@ void ieee80211_send_delba(struct ieee802
  		memcpy(mgmt->bssid, sdata->vif.addr, ETH_ALEN);
  	else if (sdata->vif.type == NL80211_IFTYPE_STATION)
  		memcpy(mgmt->bssid, sdata->u.mgd.bssid, ETH_ALEN);
@@ -959,7 +970,26 @@
  		break;
  	case cpu_to_le16(IEEE80211_STYPE_DEAUTH):
  	case cpu_to_le16(IEEE80211_STYPE_DISASSOC):
-@@ -2805,10 +2808,16 @@ static int prepare_for_handlers(struct i
+@@ -2796,19 +2799,32 @@ static int prepare_for_handlers(struct i
+ 				return 0;
+ 		} else if (!ieee80211_bssid_match(bssid,
+ 					sdata->vif.addr)) {
++			/*
++			 * Accept public action frames even when the
++			 * BSSID doesn't match, this is used for P2P
++			 * and location updates. Note that mac80211
++			 * itself never looks at these frames.
++			 */
+ 			if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
+-			    !ieee80211_is_beacon(hdr->frame_control) &&
+-			    !(ieee80211_is_action(hdr->frame_control) &&
+-			      sdata->vif.p2p))
++			    ieee80211_is_public_action(hdr, skb->len))
++				return 1;
++			if (!(status->rx_flags & IEEE80211_RX_IN_SCAN) &&
++			    !ieee80211_is_beacon(hdr->frame_control))
+ 				return 0;
+ 			status->rx_flags &= ~IEEE80211_RX_RA_MATCH;
  		}
  		break;
  	case NL80211_IFTYPE_WDS:
@@ -1098,3 +1128,44 @@
  	ibss.channel_fixed = !!info->attrs[NL80211_ATTR_FREQ_FIXED];
  	ibss.privacy = !!info->attrs[NL80211_ATTR_PRIVACY];
  
+--- a/include/linux/ieee80211.h
++++ b/include/linux/ieee80211.h
+@@ -1695,6 +1695,23 @@ static inline bool ieee80211_is_robust_m
+ }
+ 
+ /**
++ * ieee80211_is_public_action - check if frame is a public action frame
++ * @hdr: the frame
++ * @len: length of the frame
++ */
++static inline bool ieee80211_is_public_action(struct ieee80211_hdr *hdr,
++					      size_t len)
++{
++	struct ieee80211_mgmt *mgmt = (void *)hdr;
++
++	if (len < 25)
++		return false;
++	if (!ieee80211_is_action(hdr->frame_control))
++		return false;
++	return mgmt->u.action.category == WLAN_CATEGORY_PUBLIC;
++}
++
++/**
+  * ieee80211_fhss_chan_to_freq - get channel frequency
+  * @channel: the FHSS channel
+  *
+--- a/net/mac80211/tx.c
++++ b/net/mac80211/tx.c
+@@ -1332,8 +1332,11 @@ static int invoke_tx_handlers(struct iee
+ 	if (!(tx->local->hw.flags & IEEE80211_HW_HAS_RATE_CONTROL))
+ 		CALL_TXH(ieee80211_tx_h_rate_ctrl);
+ 
+-	if (unlikely(info->flags & IEEE80211_TX_INTFL_RETRANSMISSION))
++	if (unlikely(info->flags & IEEE80211_TX_INTFL_RETRANSMISSION)) {
++		__skb_queue_tail(&tx->skbs, tx->skb);
++		tx->skb = NULL;
+ 		goto txh_done;
++	}
+ 
+ 	CALL_TXH(ieee80211_tx_h_michael_mic_add);
+ 	CALL_TXH(ieee80211_tx_h_sequence);