Commit 7ac32731 authored by David S. Miller's avatar David S. Miller
Browse files

Merge tag 'mac80211-for-davem-2016-09-16' of... 

Merge tag 'mac80211-for-davem-2016-09-16' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211



Johannes Berg says:

====================
Two more fixes:
 * reject aggregation sessions for TSID/TID 8-16 that we
   can never use anyway and which could confuse drivers
 * check return value of skb_linearize()
====================

Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parents 19cd1203 85d5313e

net/mac80211/agg-rx.c

+7 −1
Original line number Diff line number Diff line
@@ -261,10 +261,16 @@ void __ieee80211_start_rx_ba_session(struct sta_info *sta, 
		.timeout = timeout,

		.ssn = start_seq_num,

	};



	int i, ret = -EOPNOTSUPP;

	u16 status = WLAN_STATUS_REQUEST_DECLINED;



	if (tid >= IEEE80211_FIRST_TSPEC_TSID) {

		ht_dbg(sta->sdata,

		       "STA %pM requests BA session on unsupported tid %d\n",

		       sta->sta.addr, tid);

		goto end_no_lock;

	}



	if (!sta->sta.ht_cap.ht_supported) {

		ht_dbg(sta->sdata,

		       "STA %pM erroneously requests BA session on tid %d w/o QoS\n",

net/mac80211/agg-tx.c

+3 −0
Original line number Diff line number Diff line
@@ -584,6 +584,9 @@ int ieee80211_start_tx_ba_session(struct ieee80211_sta *pubsta, u16 tid, 
	    ieee80211_hw_check(&local->hw, TX_AMPDU_SETUP_IN_HW))

		return -EINVAL;



	if (WARN_ON(tid >= IEEE80211_FIRST_TSPEC_TSID))

		return -EINVAL;



	ht_dbg(sdata, "Open BA session requested for %pM tid %u\n",

	       pubsta->addr, tid);

net/mac80211/tx.c

+6 −2
Original line number Diff line number Diff line
@@ -1515,8 +1515,12 @@ out: 
	spin_unlock_bh(&fq->lock);



	if (skb && skb_has_frag_list(skb) &&

	    !ieee80211_hw_check(&local->hw, TX_FRAG_LIST))

		skb_linearize(skb);

	    !ieee80211_hw_check(&local->hw, TX_FRAG_LIST)) {

		if (skb_linearize(skb)) {

			ieee80211_free_txskb(&local->hw, skb);

			return NULL;

		}

	}



	return skb;

}

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