[package] mac80211: add more ath9k patches

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@16967 3c298f89-4303-0410-b956-a3cf2f4a3e73

1 files changed, 45 insertions, 0 deletions

diff --git a/package/mac80211/patches/410-ath9k-get-rid-of-unnecessary-setpower-calls.patch b/package/mac80211/patches/410-ath9k-get-rid-of-unnecessary-setpower-calls.patch
new file mode 100644
index 000000000..4dfaeafbe
--- /dev/null
+++ b/package/mac80211/patches/410-ath9k-get-rid-of-unnecessary-setpower-calls.patch
@@ -0,0 +1,45 @@
+From 349626c9a263b41822a0c5a29061964b4a71ec3f Mon Sep 17 00:00:00 2001
+From: Gabor Juhos <juhosg@openwrt.org>
+Date: Thu, 23 Jul 2009 09:55:52 +0200
+Subject: [PATCH 2/2] ath9k: get rid of unnecessary setpower calls
+
+We are using setpower routines regardless of the current power mode.
+Don't bother the hardware, if it is not necessary.
+
+Changes-licensed-under: ISC
+Signed-off-by: Gabor Juhos <juhosg@openwrt.org>
+---
+ drivers/net/wireless/ath/ath9k/hw.c |    8 ++++++--
+ 1 files changed, 6 insertions(+), 2 deletions(-)
+
+--- a/drivers/net/wireless/ath/ath9k/hw.c
++++ b/drivers/net/wireless/ath/ath9k/hw.c
+@@ -475,6 +475,8 @@ static struct ath_hw *ath9k_hw_newstate(
+ 
+ 	ah->gbeacon_rate = 0;
+ 
++	ah->power_mode = ATH9K_PM_UNDEFINED;
++
+ 	return ah;
+ }
+ 
+@@ -2749,6 +2751,9 @@ static bool ath9k_hw_setpower_nolock(str
+ 		"UNDEFINED"
+ 	};
+ 
++	if (ah->power_mode == mode)
++		return status;
++
+ 	DPRINTF(ah->ah_sc, ATH_DBG_RESET, "%s -> %s\n",
+ 		modes[ah->power_mode], modes[mode]);
+ 
+@@ -2793,8 +2798,7 @@ void ath9k_ps_wakeup(struct ath_softc *s
+ 	if (++sc->ps_usecount != 1)
+ 		goto unlock;
+ 
+-	if (sc->sc_ah->power_mode != ATH9K_PM_AWAKE)
+-		ath9k_hw_setpower_nolock(sc->sc_ah, ATH9K_PM_AWAKE);
++	ath9k_hw_setpower_nolock(sc->sc_ah, ATH9K_PM_AWAKE);
+ 
+  unlock:
+ 	spin_unlock_irqrestore(&sc->sc_pm_lock, flags);