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| author | John W. Linville <linville@tuxdriver.com> | 2014-03-04 13:05:12 -0500 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2014-03-04 13:05:12 -0500 |
| commit | f3b6a488a670f1be2666ab97e31dcfc0b1648884 (patch) | |
| tree | d8d2431f21d4371c907dec075926e86840e86d1e /net/mac80211/tx.c | |
| parent | c14c5d99a453af6b86f15aca8fe9005b2b8f3b26 (diff) | |
| parent | adb07df1e039e9fe43e66aeea8b4771f83659dbb (diff) | |
| download | linux-f3b6a488a670f1be2666ab97e31dcfc0b1648884.tar.bz2 | |
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless
Conflicts:
drivers/net/wireless/ath/ath9k/recv.c
drivers/net/wireless/mwifiex/pcie.c
Diffstat (limited to 'net/mac80211/tx.c')
| -rw-r--r-- | net/mac80211/tx.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 722151fa5dce..cd9f80498c48 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -477,6 +477,20 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) sta->sta.addr, sta->sta.aid, ac); if (tx->local->total_ps_buffered >= TOTAL_MAX_TX_BUFFER) purge_old_ps_buffers(tx->local); + + /* sync with ieee80211_sta_ps_deliver_wakeup */ + spin_lock(&sta->ps_lock); + /* + * STA woke up the meantime and all the frames on ps_tx_buf have + * been queued to pending queue. No reordering can happen, go + * ahead and Tx the packet. + */ + if (!test_sta_flag(sta, WLAN_STA_PS_STA) && + !test_sta_flag(sta, WLAN_STA_PS_DRIVER)) { + spin_unlock(&sta->ps_lock); + return TX_CONTINUE; + } + if (skb_queue_len(&sta->ps_tx_buf[ac]) >= STA_MAX_TX_BUFFER) { struct sk_buff *old = skb_dequeue(&sta->ps_tx_buf[ac]); ps_dbg(tx->sdata, @@ -491,6 +505,7 @@ ieee80211_tx_h_unicast_ps_buf(struct ieee80211_tx_data *tx) info->flags |= IEEE80211_TX_INTFL_NEED_TXPROCESSING; info->flags &= ~IEEE80211_TX_TEMPORARY_FLAGS; skb_queue_tail(&sta->ps_tx_buf[ac], tx->skb); + spin_unlock(&sta->ps_lock); if (!timer_pending(&local->sta_cleanup)) mod_timer(&local->sta_cleanup, |