ath9k: do not put the hardware to full-sleep while tx is pending

SVN-Revision: 29133

diff --git a/package/mac80211/patches/563-ath9k_fix_full_sleep_tx.patch b/package/mac80211/patches/563-ath9k_fix_full_sleep_tx.patch
new file mode 100644 (file)
index 0000000..17575b9
--- /dev/null
+++ b/package/mac80211/patches/563-ath9k_fix_full_sleep_tx.patch
@@ -0,0 +1,22 @@
+--- a/drivers/net/wireless/ath/ath9k/main.c
++++ b/drivers/net/wireless/ath/ath9k/main.c
+@@ -118,7 +118,7 @@ void ath9k_ps_restore(struct ath_softc *
+       if (--sc->ps_usecount != 0)
+               goto unlock;
+ 
+-      if (sc->ps_idle)
++      if (sc->ps_idle && !(sc->ps_flags & PS_WAIT_FOR_TX_ACK))
+               mode = ATH9K_PM_FULL_SLEEP;
+       else if (sc->ps_enabled &&
+                !(sc->ps_flags & (PS_WAIT_FOR_BEACON |
+--- a/drivers/net/wireless/ath/ath9k/xmit.c
++++ b/drivers/net/wireless/ath/ath9k/xmit.c
+@@ -1983,7 +1983,7 @@ static void ath_tx_complete(struct ath_s
+               skb_pull(skb, padsize);
+       }
+ 
+-      if (sc->ps_flags & PS_WAIT_FOR_TX_ACK) {
++      if ((sc->ps_flags & PS_WAIT_FOR_TX_ACK) && !txq->axq_depth) {
+               sc->ps_flags &= ~PS_WAIT_FOR_TX_ACK;
+               ath_dbg(common, ATH_DBG_PS,
+                       "Going back to sleep after having received TX status (0x%lx)\n",