From 65c0ccfba8646af81e3b1edf271e8dcc674e74b1 Mon Sep 17 00:00:00 2001 From: Senthil Balasubramanian Date: Fri, 22 Apr 2011 11:32:10 +0530 Subject: [PATCH] ath9k: optimize the usage of power save wrappers. We need not wake up the chip even before mutex lock is acquired and also that it is required only if we are going to drain the txq. So place the wrappers accordingly and this change is also useful when there are no pending frames in the txq as we do not wake up the chip unnecessarily. Signed-off-by: Senthil Balasubramanian Signed-off-by: John W. Linville --- drivers/net/wireless/ath/ath9k/main.c | 6 ++---- 1 file changed, 2 insertions(+), 4 deletions(-) diff --git a/drivers/net/wireless/ath/ath9k/main.c b/drivers/net/wireless/ath/ath9k/main.c index e7d6d98ed1ccb..dd2fffbbef2eb 100644 --- a/drivers/net/wireless/ath/ath9k/main.c +++ b/drivers/net/wireless/ath/ath9k/main.c @@ -2211,9 +2211,7 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) int timeout = 200; /* ms */ int i, j; - ath9k_ps_wakeup(sc); mutex_lock(&sc->mutex); - cancel_delayed_work_sync(&sc->tx_complete_work); if (drop) @@ -2236,15 +2234,15 @@ static void ath9k_flush(struct ieee80211_hw *hw, bool drop) goto out; } + ath9k_ps_wakeup(sc); if (!ath_drain_all_txq(sc, false)) ath_reset(sc, false); - + ath9k_ps_restore(sc); ieee80211_wake_queues(hw); out: ieee80211_queue_delayed_work(hw, &sc->tx_complete_work, 0); mutex_unlock(&sc->mutex); - ath9k_ps_restore(sc); } static bool ath9k_tx_frames_pending(struct ieee80211_hw *hw) -- 2.39.5